To see the other types of publications on this topic, follow the link: Nimoy.
Dissertations / Theses on the topic 'Nimoy'
Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles
Consult the top 50 dissertations / theses for your research on the topic 'Nimoy.'
Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.
You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.
Browse dissertations / theses on a wide variety of disciplines and organise your bibliography correctly.
1
Baudon, Alain. "Hydrocraquage d'hydrocarbures modèles sur catalyseurs industriels NiMoS." Poitiers, 1996. http://www.theses.fr/1996POIT2302.
Full textAbstract:
L'hydrocraquage des charges petrolieres est un des procedes de conversion de l'industrie du raffinage qui, par sa grande flexibilite, permet d'orienter sa production en fonction de la demande du marche. Il permet d'obtenir aisement le produit recherche (essence, gazole, kerosene), meme a partir de charges refractaires au craquage, comme les charges riches en polyaromatiques. L'objectif de ce travail etait d'etudier la transformation de differents types d'hydrocarbures representatifs des charges a traiter (paraffines, naphtenes, aromatiques) dans des conditions proches de celles utilisees dans les unites industrielles (reacteur dynamique sous pression elevee d'hydrogene, presence de composes soufres et azotes). Le catalyseur utilise pour cette etude est lui aussi de type industriel, a base de sulfures de nickel et de molybdene deposes sur une alumine et associes a une zeolithe y protonique. La principale conclusion de cette etude est donc que la transformation des differents hydrocarbures se produit toujours essentiellement par un mecanisme bifonctionnel, conduisant a des produits d'isomerisation et de craquage. La structure de l'hydrocarbure ne modifie que les vitesses des differentes reactions, y compris celle de la formation de coke, et par consequent la selectivite de l'hydrocraquage. La structure de l'hydrocarbure semble egalement jouer un role important au niveau de la cinetique de la reaction. En effet, les equations cinetiques utilisees pour decrire la transformation des n-alcanes ne semblent pas adaptees a la transformation des naphtenes, et encore moins a celle des naphteno-aromatiques. Enfin, la methode utilisee pour presulfurer le catalyseur influe considerablement sur son activite ulterieure en hydrocraquage. Une sulfuration en absence d'hydrocarbure (par h#2s/h#2) conduit a une meilleure formation de la phase sulfure, et par consequent a une activite hydrogenante plus forte du catalyseur. La sulfuration en presence d'un hydrocarbure (dimethyldisulfure en solution dans le n-heptane ou le n-decane) conduit a un cokage des sites acides du catalyseur
2
CABRAL, Rucilana Patrícia Bezerra. "Síntese e avaliação de NiMo/Beta e NiMo/SAPO-5 no hidrocraqueamento do cumeno com piridina." Universidade Federal de Campina Grande, 2008. http://dspace.sti.ufcg.edu.br:8080/jspui/handle/riufcg/1695.
Full textAbstract:
Submitted by Maria Medeiros (maria.dilva1@ufcg.edu.br) on 2018-09-12T14:38:14Z
No. of bitstreams: 1
RUCILANA PATRÍCIA BEZERRA CABRAL - TESE (PPGEP) 2008.pdf: 6571244 bytes, checksum: d2b524bd924cc294214a4507138e3b56 (MD5)Made available in DSpace on 2018-09-12T14:38:14Z (GMT). No. of bitstreams: 1 RUCILANA PATRÍCIA BEZERRA CABRAL - TESE (PPGEP) 2008.pdf: 6571244 bytes, checksum: d2b524bd924cc294214a4507138e3b56 (MD5) Previous issue date: 2008-07-06
Devido ao aumento na produção de óleo pesado, a indústria do refino voltou-se para os processos de hidrocraqueamento (HCC) que fornecem combustíveis básicos e leves atendendo as exigências da sociedade moderna. O processo HCC é realizado, geralmente, sob temperaturas e pressões elevadas na presença do hidrogênio e de um catalisador de hidrocraqueamento. As cargas de petróleo brasileiras inevitavelmente contêm muitas impurezas, como os compostos orgânicos nitrogenados. Estes compostos de nitrogênio presentes nas cargas de hidrocraqueamento atuam como venenos temporários dos catalisadores, resultando numa diminuição de atividade destes catalisadores. Normalmente, os catalisadores de HCC compreendem de um suporte ácido mais um componente hidrogenante selecionado do Grupo VIB e do grupo VIII da Tabela periódica dos Elementos, na forma de óxido ou sulfeto. Zeólita Beta e SAPO-5 foram propostos para serem usados como suportes ácidos. A respeito do componente hidrogenante, a combinação de metais usados, expressada como óxidos, foi NiO-MoO3. Uma série de catalisadores NiMo suportados em Zeólita Beta e SAPO-5, de diferentes composições, foram preparados por impregnação seqüencial úmida dos materiais utilizando soluções aquosas precursoras de Ni(NO3)2.6H2O e (NH4)6 Mo7O24. 4H2O. Os suportes e catalisadores foram analisados pelas técnicas: Difração de raios-X (DRX), Espectrometria de Emissão Atômica de Plasma Acoplado Induzido (ICPAES), Adsorção Física de N2 pelo método BET, Redução com Temperatura Programada (RTP), Microscopia Eletrônica de Transmissão (MET), Espectroscopia no Infravermelho de piridina adsorvida (IV), Espectroscopia de Refletância Difusa (DRS) e Espectroscopia de Ressonância Magnética Nuclear (RMN). Os catalisadores NiMo sulfetados foram avaliados usando um reator tubular de fluxo contínuo, no hidrocraqueamento do cumeno na presença e ausência de piridina. Foi verificado que os catalisadores suportados em zeólita Beta promoveram maiores conversões que os suportados em SAPO-5, principalmente o que usou zeólita Beta (Si/Al=8,2) com 4%NiO e 15%MoO3. A presença da piridina foi prejudicial à performance de todos os catalisadores, inclusive para os padrões cedidos pelo CENPES.
Due to the increasing of the heavier crude oil feedstocks production, the oil refining industry has turned to hydrocracking (HCK) processes to provide the lighter basic fuels which modern society demands. The HCK process is generally carried out under high temperatures and pressures in the presence of the hydrogen and a HCK catalyst. The feedstocks of the Brazilian crudes inevitably contain many impurities, such as organic nitrogen compounds. These nitrogen compounds present in the feeds of hydrocracking process act as, temporary poisons to the catalysts, thereby decreasing the catalyst activity. Usually, hydrocracking catalysts comprise of an acidic support plus a hydrogenating component selected from the Group VIB metals and Group VIII metals of the Periodic Table of the Elements, in their oxide or sulfide form. Beta zeolite and SAPO-5 are proposed as acidic support materials for hydrocracking. Regarding the hydrogenation component the combination of the metals used in the form of oxides, was NiO-MoO3. A series of NiMo catalysts supported on Beta zeolite and SAPO-5, of different compositions, were prepared by sequential incipient wetness impregnation of the materials with aqueous solutions of Ni(NO3)2 . 6H2O and (NH4)6 Mo7O24.4H2O. The supports and catalysts were analyzed by several techniques such as: X-ray diffraction (XRD), plasma-emission spectrometry (ICP-AES), N2 physical adsorption by BET method, temperature programmed reduction (TPR), transmission electronic microscopy (TEM), infrared spectroscopy of adsorbed pyridine (IR), diffuse reflectance spectroscopy (DRS) and nuclear magnetic resonance (NMR) spectroscopy. The sulfide NiMo catalysts were evaluated using a continuous-flow tubular reactor by the cumene hydrocracking in the presence and absence of pyridine. It was verified that the NiMo catalysts based on Beta zeolite produced the highest cumene conversion than those based on SAPO-5, particularly the one with Beta zeolite (Si/Al=8,2) containing 4%NiO and 15%MoO3. The presence of nitrogen as pyridine was detrimental for the performance of all catalysts, including the standards one, supplied for the CENPES.
3
Valentini, Laura. "Essays on environmental policy, plant location and financial liability." Thesis, University of Southampton, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.313192.
Full text
4
Alamoudi, Majed. "Hydrodesulphurization of dibenzothiophene using carbon supported NiMoS catalysts." Thesis, University of British Columbia, 2016. http://hdl.handle.net/2429/57541.
Full textAbstract:
Hydrodesulphurization (HDS) is the major process used to remove S from crude oil feedstocks in order to improve fuel quality and meet environmental regulations. The goal of this study was to determine if petroleum coke (petcoke), derived from Alberta oilsands, could be converted into a useful catalyst support. Hence the HDS activity and selectivity of nickel molybdenum sulfided catalysts supported on activated carbon (NiMoS/AC), petroleum coke (NiMoS/PC) and conventional alumina (NiMo/γ-Al₂O₃) have been compared using dibenzothiophene (DBT) as a model reactant. The reactions were carried out in a novel slurry-phase batch microreactor at different reaction times (30-120 min) and temperatures (588-638 K) and a fixed H2 pressure (4.8 MPa).
The results showed that NiMoS/PC had higher activity towards the HDS of DBT when compared with NiMoS/AC, although the catalysts had very similar product selectivities. The highest activity for DBT HDS, corresponding to 90% DBT conversion, occurred at 638 K for the NiMoS/AC catalyst and at 623K for the NiMoS/PC catalyst. The reaction proceeded by two pathways: the direct desulphurization (DDS) reaction route and the hydrogenation (HYD) reaction route. The power law pseudo 1st-order kinetic model was applied to the HDS of DBT. The estimated kinetic parameters showed similar magnitudes for the HYD versus the DDS routes over both catalysts, whereas the DDS pathway had higher apparent activation energy compared to the HYD route for both catalysts.Applied Science, Faculty of
Chemical and Biological Engineering, Department of
Graduate
5
Steffel, Jennifer Elaine. "Storming the suburban fortress : understanding the NIMBY phenomenon." Thesis, McGill University, 1995. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=23704.
Full textAbstract:
The ubiquitous settlement pattern of the American suburb is in fact a carefully constructed reality. Because the vision of the home in the suburbs is very deeply rooted, any development which is considered threatening to this image is met with a defensive reaction. Too often, however, when these NIMBY ("Not In My Back Yard") sentiments are permitted to dictate what is acceptable in a community, housing affordable to low- and moderate-income households is purposely excluded.This thesis explores the processes by which discriminatory NIMBY sentiments are realized as legal development regulations in contemporary suburbs. The historic evolution of the suburbs and the psychological foundations behind their typical characteristics are presented as the sources of a suburban value structure which esteems NIMBY. Suburban governments are mandated to represent their constituents' values, but exclusionary development controls are a complex product of constituent demands, fiscal constraints, and constitutional limits.
This analysis reveals that legislative responsibility often bows to political weakness. NIMBY groups use political pressure to manipulate municipal governments into using their vast discretionary powers over development as a weapon for exclusion. In response to either political or fiscal motivations, legislators pressure planners to validate discriminatory legislative agendas with their plans, thus undermining their abilities to guide growth effectively. Although the process of development regulation is well-grounded in historic and legal precedents, when legislation is used for discriminatory ends, citizens' civil and property rights are jeopardized. This thesis explains how regulations such as zoning ordinances can be used for exclusion when municipal government disregards its mandate to be the guardian of the general welfare.
Increased awareness of both the motivations and the manifestations of the NIMBY phenomenon may enable individuals as well as lawmakers to create a more equitable suburbia.
6
Boatwright, Jessica Ann. "Siting Community Wind Farms: An Investigation of NIMBY." Thesis, Virginia Tech, 2013. http://hdl.handle.net/10919/23750.
Full textAbstract:
Wind energy is expanding rapidly in the United States as the nation\'s energy policy objectives increasingly focus on renewables. Public opinion polls show that a majority of Americans support wind energy development but actual wind farm projects often face intense local opposition. This dichotomy between general support for wind energy but opposition towards siting a project nearby is often attributed to the not-in-my-backyard (NIMBY) phenomenon. In this study we employ a discrete choice experiment to investigate public preferences for different characteristics of a local wind farm. We investigate NIMBY by first controlling for characteristics that might cause local opposition, such as seeing or hearing a wind farm from home, and then after considering these effects of a wind farm we examine whether people who favor wind energy display NIMBY resistance. Finally, we estimate compensation requirements for siting a wind farm within sight or sound of someone\'s home. Results show that people who somewhat favor wind energy do display NIMBY attitudes since they are predisposed to vote against local wind development even after controlling whether they would see and hear the wind farm from their homes. We do not detect NIMBY attitudes among people who strongly favor wind energy because they have a positive disposition towards local wind farms. Our results suggest that if an incentive program is in place from the onset of a wind development project it could offset NIMBY reactions to specific projects.Master of Science
7
Bolehovský, Petr. "Vliv umístění zařízení na nakládání s odpady na regionální rozvoj a síla vlivu NIMBY efektu ("not in my backyard")." Master's thesis, Vysoká škola ekonomická v Praze, 2011. http://www.nusl.cz/ntk/nusl-72752.
Full textAbstract:
NIMBY is widely used acronym for people's unwilingness to house noxious facilities in their immediate neighborhood. People feel that they are somewhat and they expect to be compensated for this. Goal of this thesis is to evaluate influence of monetary compensations on people's willingness to accept these facilities. Evaluates effects of Crowding Theory, extristic and intristic motivations on willingness to accept these facilities. Used method was qualitative analysis in form of controlled interviews with key stakeholders (mayor and town citizens). Author tries to evaluate if the NIMBY effect is the main reason for generally bad acceptance of this facilities. This thesis explores the NIMBY effect on construction of one of these facilities in town Chotíkov with a view on the gradual development of view throughout the population of this town.
8
Sörensen, Jimmie. "NIMBY eller YIMBY? : Upplands Väsbys vindkraft i Ockelbo kommun." Thesis, Stockholms universitet, Institutionen för naturgeografi och kvartärgeologi (INK), 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-104621.
Full textAbstract:
Syftet med denna uppsats är att undersöka den lokala uppfattningen i Ockelbo gentemot etableringen av en vindkraftspark i näromgivningen samt vad som ligger bakom Upplands Väsbys val att bygga ett vindkraftverk på annan ort. Resultaten visar att NIMBY-åsikter inte ligger bakom Upplands Väsbys val samt att attityden som återges bland de boende och kommuntjänstemännen i Ockelbo kommun präglas av en positiv inställning mot vindkraftsetableringen i deras närmiljö. Den positiva inställningen grundar sig främst på utbetalningen av bygdepengen samt att vindkraften symboliserar och innebär miljövänlig energi.
9
Joffres, Benoît. "Synthèse de bio-liquide de seconde génération par hydroliquéfaction catalytique de la lignine." Thesis, Lyon 1, 2013. http://www.theses.fr/2013LYO10223.
Full textAbstract:
Actuellement, la transformation de la biomasse en bio-carburant ou molécules pour l'industrie chimique fait l'objet de nombreuses recherches. La lignine, en tant que coproduit de l'industrie papetière et de l'éthanol cellulosique, est une ressource des plus disponibles qui pourait être utilisée pour la production d'aromatiques ou de composés phénoliques. Cependant, cette macromolécule constituée d'unités propylphénoliques liées par des liaisons éthers nécessite d'être dépolymérisée. Ce travail porte sur la compréhension des mécanismes de liquéfaction par hydroconversion catalytique d'une lignine de paille de blé extraite par un procédé papetier à la soude. Dans un premier temps, nous avons mené une caractérisation poussée de cette lignine à l'aide de diverses techniques qui nous a permis de proposer une structure modèle. Ensuite, nous avons mis en place un mode opératoire de conversion et un protocole de récupération des produits. La réaction est réalisée en réacteur semi-ouvert à 350°C en présence d'H2 (8MPa), d'un solvant donneur d'hydrogène (tétraline) et d'un catalyseur d'hydrotraitement NiMoP/Al2O3 sulfuré. Les produits se répartissent en une phase liquide (liquéfiat), une phase gaz, une lignine résiduelle et des solides non-solubles dans le THF. Un taux de conversion a été défini comme le rendement en produits non-solides et les valeurs maximales atteintes sont de 81% pds après 28h de réaction avec un excellent bilan matière. Les fractions récupérées ont ensuite été caractérisées en détail avec des techniques d'analyse adaptées. Grâce à ce protocole d'analyse, nous avons pu observer que le solvant permet d'éviter la formation de solides et que le catalyseur intervient principalement sur l'hydrodésoxygénation et l'hydrogénation des molécules issues de la dépolymérisation de la charge. Enfin, nous avons suivis la réaction au cours du temps, ce qui nous a permis de présenter une ébauche de schéma réactionnel. Les premières étapes de conversion sont la décarboxylation, l'hydrogénolyse des OH aliphatiques et la rupture des liaisons éthers entre les unités élémentaires de la lignine, qui entraînent sa dépolymérisation. Puis des processus plus lent se produisent comme l'élimination des groupes méthoxy, principalement par déméthylation suivi de déshydroxylation. Ainsi, les principaux produits obtenus sont des composés phénoliques et des composés désoxygénésNowadays, the transformation of lignocellulosic biomass is deeply investigated in order to provide biofuels and chemicals. Lignin, a by-product of pulp and bio-ethanol industry, is an available resource which could be used for the production of aromatic and phenolic compounds. However, this macromolecule mainly made of propylphenolic units linked by ether functions needs to be depolymerized. This work focuses on the study of liquefaction mechanisms by catalytic hydroconversion of wheat straw lignin extracted by a soda pulping. In the first part of this study, an in-depth characterization of this lignin was carried out using techniques. A structure of our lignin was proposed as a result. Then, a procedure was developed to perform the catalytic hydroconversion and recover the products. Catalytic experiments were carried out in a semi-batch reactor at 350°C, using H2 (8 MPa), a hydrogen donor solvent (tetralin) and a sulfide NiMoP/Al2O3 catalyst. The recovered products were separated into a liquid phase, gases, a lignin residue and THF insoluble solids. A conversion of 81 wt% of lignin into non-solid products was reached after 28h of reaction with an excellent mass balance. The characterization of the different fractions was carried out using techniques. Thanks to this protocol, we were able to point out the role of the H-donor solvent for preventing solid formation as well as the role of the catalyst for hydrodeoxygenation and hydrogenation of the depolymerized products. Finally, the catalytic hydroconversion of the lignin was carried out with the different residence times, which helps understanding the transformations occurring during the conversion. At the beginning of the reaction, we observed decarboxylation, hydrogenolysis of aliphatic OH and cleavage of ether linkages between the phenolic units of the lignin. Then, we observed elimination of methoxy groups, mainly by demethylation followed by dehydroxylation. Finally, the main products obtained during the reaction were phenolic and deoxygenated compounds such as aromatics, naphthenes and alkanes
10
Novotná, Miroslava. "NIMBY efekt: Postoj obyvatel v případě plánované výstavby bioplynové stanice." Master's thesis, Vysoká škola ekonomická v Praze, 2012. http://www.nusl.cz/ntk/nusl-125010.
Full textAbstract:
The aim of the thesis is a research of the "Not In My Back Yard" effect, a negative attitude of local people to a construction of a new and potentially dangerous project in their vicinity. The thesis quantifies strength of the NIMBY effect in Městec Králové, a town where a biogas plant is planned to be constructed. The hypothesis is that the strength of the NIMBY effect is higher for the people who live in a higher proximity to a planned construction than for the people who do not.The hypothesis is evaluated based on data gained by an own survey conducted among residents of the town.Quantification of the NIMBY effect is more frequently a subject of research of foreign studies; empirical studies of biogas plants are rather rare. From this reason I have implemented a study of population of Městec Králové and tried to prove whether presence of the "Not In My Back Yard" effect can be indicated.
11
Young, Suk-han Edith, and 楊淑嫻. "NIMBY syndrome and planning for LULUs: a casestudy of Hong Kong." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1997. http://hub.hku.hk/bib/B42574663.
Full text
12
Gardner, Ian William. "NIMBY : network or social movement? : individual and collective opposition to windfarms." Thesis, Bangor University, 2014. https://research.bangor.ac.uk/portal/en/theses/nimby-network-or-social-movement-individual-and-collective-opposition-to-windfarms(d5c76c67-1dff-4949-90a4-337057fc1fc1).html.
Full textAbstract:
This thesis is a mixed methods study of individual and collective anti-wind energy activism in the UK, USA and Europe. A ‘grounded theory’ approach was taken to the generation of theoretical material in that research questions evolved as the research progressed and no ‘a priori’ hypotheses were proposed. However, the initial aims of the research were: to assess the applicability of the ‘NIMBY’ label; to investigate the extent of the anti-wind activist network and to judge whether the phenomenon could legitimately be described as a ‘social movement’. The research involved two types of quantitative analysis: Social Network Analysis of hyperlink and real world network data; and an assessment of the strength of Place Attachment for anti-wind energy activists. Qualitative analysis of semi-structured interview and biographical data was also used to gain an understanding of the characteristics of leading anti-wind activists: their similarities, differences, motivations, underpinning ideologies and biographical trajectories. The thesis frames the development and deployment of wind energy as a strategic response of advanced capitalism to geopolitical factors and historic energy crises. New forms of energy generate new relations of production and externalities which impact on localities and class interests. For onshore wind energy, these particularly (but not exclusively) affect elements of the rural middle class who have deeply entrenched views of the ‘pastoral ideal’. A conceptual model is developed to show how the expansion of industrial wind energy presents instrumental and ideological challenges to this ideal, and to identities. As a consequence individual and collective protests take place. These are sufficiently organised, connected, purposive and large-scale as to qualify as a social movement. The thesis contributes to Social Movement and Social Network theory by combining quantitative and qualitative methods to better understand anti-wind activism.
13
Hellqvist, Camilla. "Grannprotester : En studie av protester mot asylboenden." Thesis, Högskolan för lärande och kommunikation, Högskolan i Jönköping, HLK, Globala studier, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-30499.
Full textAbstract:
Aldrig tidigare har så många människor sökt asyl i Sverige som de senaste åren. Det har medfört ett ökat behov av asylboenden runtom i landet. Etableringar av sociala verksamheter brukar förorsaka grannprotester. Retoriken i sådana grannprotester brukar beskrivas med hjälp av två akronymer: NIMBY (Not in My Back Yard) och NIABY (Not In Anyone’s Yard). I NIMBY-retoriken kritiseras inte den etablerade verksamheten som sådan, endast lokaliseringen. I NIABY-retoriken däremot riktas kritiken mot verksamhetens art, det vill säga kritiken är principiell. I denna studie undersöks hur retoriken ser ut bland grannskap där etableringar av asylboenden har varit aktuella i och med den rådande flyktingsituationen. Metodiskt bygger studien på en innehållsanalys av massmediarapporter kring protester mot asylboenden. Studien visar att NIMBY-retorik är betydligt vanligare förekommande än NIABY-retorik. Samtidigt uppmärksammas att gränsen mellan NIMBY och NIABY ofta är flytande. En viktig teoretisk slutsats är att begreppen NIMBY och NIABY är nödvändiga, men inte tillräckliga, för att förstå grannprotester mot etableringar av sociala verksamheter.
14
KAMYAB, ALI. "Preparation and evaluation of sulfided NiMo/γ-Al2O3 hydrotreating catalysts." Thesis, KTH, Skolan för kemivetenskap (CHE), 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-190904.
Full textAbstract:
Four nickel-molybdenum catalysts were synthesized on gamma alumina with higher surface area and on NiMo catalyst was prepared using gamma alumina with lower surface area. Catalysts with higher-surface-area support were prepared by co-impregnation, sequential impregnation and adding phosphorous. Theses catalysts were calcined at 500 ͦC. Effect of higher calcination temperature was investigated by preparation of one catalyst calcined at 700 ͦC. Catalysts were thoroughly characterized via four characterization techniques. The hydrotreating activity of three catalysts was carried out in a micro reactor at high pressure and three different temperatures with Nynas vacuum middle distillate. Prior to the test, sulfiding was carried out to activate the catalysts. Hydrotreated-oil samples as products were analyzed to evaluate the activity and conversion of the catalyst. Also, the spent catalysts were characterized to evaluate the surface area characteristics and deactivation of catalysts. Addition of phosphorous to NiMo/gamma-Al2O3 improved the interaction between the metals and the support as well as reduced the coke formation as observed in scanning electron microscopy micrographs.
15
Lim, Isaak [Verfasser], Leif [Akademischer Betreuer] Kobbelt, and Niloy J. [Akademischer Betreuer] Mitra. "Learned embeddings for geometric data / Isaak Lim ; Leif Kobbelt, Niloy J. Mitra." Aachen : Universitätsbibliothek der RWTH Aachen, 2021. http://d-nb.info/123448790X/34.
Full text
16
Young, Suk-han Edith. "NIMBY syndrome and planning for LULUs : a case study of Hong Kong /." Click to view the E-thesis via HKUTO, 1997. http://sunzi.lib.hku.hk/hkuto/record/B42574663.
Full text
17
Karlsson, Charlotte, and Amira Delalic. "Det stör inte – det sticker lite i ögonen bara : En fallstudie om ensamkommande barns boende och grannskapskontakters betydelse för integration." Thesis, Högskolan i Jönköping, Högskolan för lärande och kommunikation, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-21853.
Full textAbstract:
In recent times the number of children and youth, that have been forced to flee to Sweden due to various circumstances, has increased. The majority of said children and youth seek refuge along with their parents. In recent years, however, the count of this mentioned group, coming separately from their parents, has gradually increased. Children in such situations are called unaccompanied children. A knowledge gap in previous research, regarding the commitment of unaccompanied children, might be filled by neighborhood attentiveness to residential care homes i.e. HVB where many of these children get placed. In regards to this acknowledgement, the aim of this study has been to investigate neighborhood contacts with HVBs for unaccompanied children. Furthermore, the aim has been to investigate these contacts by using a case study with the objective of the municipality Gislaved and its HVB for unaccompanied children Furugården in Smålandsstenar. From the noted points the role that the neighborhoods might play regarding the endeavors towards integration will be highlighted. The study has been based on the theoretical frameworks of NIMBY and the Contact Hypothesis that intend to explain the significant role that the neighborhood’s impact can have on unaccompanied children’s integration. In order to meet the aim of this study, a total of 23 semi-structured and qualitative interviews have been conducted with responsible staff of the HVB along with its neighborhood i.e. its neighbors.På senare tid har antalet barn och ungdomar som tvingats på flykt till Sverige åtskilda från sina föräldrar succesivt ökat. Dessa går under benämningen ensamkommande barn. En kunskapslucka inom tidigare forskning angående åtagandet av ensamkommande barn är den betydelse grannskapet till HVB-hem, som många av dessa barn placeras i, kan spela. Syftet med föreliggande studie har därmed varit att undersöka grannskapskontakter med boende för ensamkommande barn med hjälp av en fallstudie av ett HVB-hem i Gislaveds kommun, HVB-hemmet Furugården i Smålandsstenar, och att från dessa utgångspunkter belysa den roll grannskap kan spela för integrationssträvande. Studien har utgått från de teoretiska begreppen: NIMBY och Kontakthypotesen vilka inom studien har ämnat förklara grannskapets inverkan på ensamkommande barns integration För att uppnå studiens syfte har totalt 23 semistrukturerade intervjuer av kvalitativ karaktär genomförts med HVB-hemsansvariga och med HVB-hemmets grannskap, det vill säga grannar.
Ensamkommande barn och grannskapsrelationer i Jönköpings län
18
Perez, Carmona Alexander [Verfasser]. "The Political Economy of NIMBY : Conflictive Landfill Siting in Colombia / Alexander Perez Carmona." Aachen : Shaker, 2017. http://d-nb.info/1149279958/34.
Full text
19
HOUSNI, SAID. "Proprietes catalytiques de phases activessulfures mixtes niws et nimos supportees sur oxydes metalliques." Caen, 1989. http://www.theses.fr/1989CAEN2019.
Full textAbstract:
Les proprietes catalytiques des phases actives sulfures mixtes niws et nimos supportees ont ete etudiees par la mesure de l'activite de series de catalyseurs pour la reaction test d'hydrodesulfuration (hds) du thiophene, et par l'aptitude de la surface active a chimisorber les molecules sondes monoxyde de carbone et oxygene. La composition du couple sulfure nickel-tungstene a ete optimisee sur le support alumine: le tungstene n'est actif que lorsqu'il est associe au nickel. Le meilleur catalyseur mixte repond a une formulation tres riche en tungstene (38%wo#3-4%nio), presulfure en phase liquide. Les quantites de co chimisorbees a 0#oc en methode dynamique sont bien correlees a l'activite hds des catalyseurs sulfures: elles suivent l'influence des conditions de sulfuration ou de calcination du precurseur oxyde, et la desactivation du catalyseur pour l'hds du thiophene. La sonde oxygene est beaucoup moins selective des sites d'hydrogenolyse, mais elle detecte les sites d'hydrogenation. Les chimisorptions combinees permettent d'acceder aux deux fonctions du catalyseur niws/al#2o#3. L'utilisation des oxydes zro#2 et tio#2 comme supports de sulfures en remplacement de l'alumine a ete exploitee comme voie d'amelioration des catalyseurs d'hydrotraitement. Ces supports de grande surface specifique ont ete prepares en incorporant des ions etrangers au reseau de l'oxyde metallique. L'activite intrinseque pour l'hds du thiophene du molybdene supporte sur zro#2-y#2o#3 ou tio#2-zro#2 est elevee. Cependant, l'effet promoteur du nickel est peu developpe. Les mesures de chimisorption de co suggerent un frittage de la phase active nimos
20
Nelson, Stefany K. "A SOCIAL CONSTRUCTION OF AFFORDABLE HOUSING AND NIMBY IN A SOUTHERN CALIFORNIA COUNTY." CSUSB ScholarWorks, 2014. https://scholarworks.lib.csusb.edu/etd/92.
Full textAbstract:
The constructivist paradigm was used in the research study to focus on the challenges with affordable housing and concentrations of Housing Choice Voucher recipients in a county in Southern California. Viewed through the lens of Social Stratification posed by Max Weber, ones opportunities in life are based on his/her position of class, status and power, where by those with lower positions are excluded from opportunities. The literature discusses the goal of the Housing Choice Voucher Program is to deconcentrate poverty and provide opportunities to move to higher income areas in order to provide opportunities for social upward mobility. Residential socioeconomic segregation has considerable consequences for public health. Keeping in mind the sensitivity of this controversial topic, the researcher protected and maintained confidentiality through the research process. Thus, the member‑checking meeting in which the joint construction is shared with the study participants was held on a secured internet website. Data was gathered by interviewing a diverse group of participants from various levels of agency, including government agencies. This qualitative data was analyzed by identifying “units” of information that were then grouped into categories of topics relevant to the research focus. The result of the final data analysis was a formulation of sixteen categories which was then interpreted in the form of a social construction which concludes that there is a lack of affordable housing in the county, and concentrations of subsidized housing in lower income cities versus affluent cities is due to the demographics of cities as well as exclusion brought on by NIMBY occurrences. Implications for macro Social Work practice included community organizing and policy advocacy at various governmental levels. The termination of the study did not result in the study participants planning to move forward with the solutions that were formed during the research process. A “Thank you” email was sent to the participants with the final joint construction attached as well as the instructions on where to find the final report. The researcher invited the study participants to contact her in the future regarding any opportunities related to affordable and public housing in the County.
21
Eriksson, Linn, and Frida Thorbjörnsson. ""Klart jag fattar du är orolig" : en intervjustudie om hur HVB-hem för ensamkommande barn hanterar informationsstrategier och grannreaktioner." Thesis, Högskolan för lärande och kommunikation, Högskolan i Jönköping, HLK, Globala studier, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-31647.
Full textAbstract:
Under 2015 kom fem gånger så många ensamkommande barn till Sverige jämfört med året innan. Detta innebar en stor påfrestning för Sveriges kommuner och för de Hem för vård och boende (HVB-hem) som ansvarar för ensamkommande barn och ungdomar. Syftet med denna studie är att undersöka hur denna belastning påverkade HVB-hemmens verksamhet för ensamkommande barn och att studera de informationsstrategier som används vid etablering av hemmen. Hur har grannar informerats om verksamheterna och hur har de reagerat? Metodiskt bygger studien på individuella semistrukturerade intervjuer och en skriftlig intervju via e-post. Personerna som intervjuades är verksamma vid HVB-hem i olika kommuner i Jönköpings län. Resultatet visar att de två största utmaningarna för HVB-hemmens verksamhet för ensamkommande barn handlade om att få tag i lämpliga lokaler och kompetent personal. De två vanligaste informationsstrategierna som användes var informationsmöten och öppet hus. Fyra kommuner valde dock att hålla en lägre profil och avstå från information till grannar. Vidare visar studien att respondenterna överlag är positivt överraskade över det stora engagemanget de mött från allmänheten och att sådana reaktioner är vanligare än oro. Resultatet analyseras delvis utifrån NIMBY-begreppet och kopplingar görs till de två informationsstrategierna, samverkansansatsen och den autonoma ansatsen. Dessutom belyses skillnader och likheter i relation till tidigare forskning.
22
Leyral, Géraldine. "Synthèse et structuration de sulfure de molybdène promu nickel en présence de liquide ionique ou de polymère hydrosoluble amphiphile : application en catalyse hétérogène." Thesis, Montpellier 2, 2013. http://www.theses.fr/2013MON20266.
Full textAbstract:
Avec l’épuisement progressif des ressources pétrolières, la production de biocarburant est actuellement en plein développement. Utiliser la biomasse en tant que source d’énergie permettrait également de limiter la concentration en dioxyde de carbone dans l’atmosphère et ainsi l’effet de serre. Cependant son processus de transformation implique une étape d’hydrodésoxygénation qui nécessite d’avoir recours à des catalyseurs de type sulfure de molybdène dopé par du cobalt ou du nickel. Ces catalyseurs sont également indispensables au cours du traitement du pétrole lors du procédé d’hydrodésulfuration qui est primordial pour limiter la pollution de l’air par les gaz de combustion des carburants. Cette thèse propose une méthode de synthèse et de structuration de catalyseurs massiques NiMoS facile à mettre en œuvre et rapide. Deux solvants ont été utilisés : l’eau et le formamide. L’ajout d’un polymère hydrosoluble amphiphile, le PEO113-b-PLLA32, dans l’eau et de liquides ioniques (BMIMNTf2 et BMIMBF4) dans le formamide ont permis la structuration des matériaux et l’obtention de surfaces spécifiques atteignant 55 m2g-1. Ceci représente une surface importante pour ce type de composé, en particulier dans le cadre d’une synthèse par chimie douce. Les premiers tests catalytiques réalisés vis-à-vis de la réaction d’hydrodésoxygénation de l’acide décanoïque montrent une activité catalytique très prometteuse pour ces matériauxWith the progressive decrease of oil resources, the production of biomass fuel is a fast growing field. This could limit the concentration of carbon dioxide in the atmosphere and thus the global warming. The production of this kind of fuel requires the use of catalysts such as nickel or cobalt promoted molybdenum sulfide. These materials are also crucial during the refining of oil, an essential step to limit atmospheric pollution during the classic fuel combustion. New methods to synthesize and structure NiMoS catalysts have been developed in this work. Two solvants have been studied: formamide and water. The addition of an amphiphilic water-soluble polymer (PEO113-b-PLLA32) in water and of ionic liquids (BMIMNTf2 and BMIMBF4) in formamide led to the structuring of the materials with specific surface areas up to 55 m2g-1. This is a high value for this kind of material, especially since the synthesis is carried out under soft conditions. The first catalytic tests dealt with decanoïc acid hydrodesoxygenation and highlighted a promising activity for these materials
23
Au, Chak-lam, and 歐澤霖. "Public opposition to NIMBY facilities : the extension of SENT landfill in Tseung Kwan O." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2014. http://hdl.handle.net/10722/207618.
Full textAbstract:
The research focuses on public opposition to the extension of South East New Territories (SENT) Landfill in Tseung Kwan O, Hong Kong. The phenomenon of opposing undesirable facilities sitings is described as the “Not in my backyard (NIMBY)” syndrome in literature and the popular media.
SENT Landfill is expected to reach its saturation capacity before 2016 but the public opposition has been fierce to prohibit the extension proposal. The objectives of this study is to identify how the public in Tseung Kwan O perceive the landfill extension proposal, reasons for opposing the extension and potential measures to resolve the conflicts.
A questionnaire survey was adopted to obtain both quantitative and qualitative data. One-hundred fifty samples were collected from each sampling area. A total of four-hundred fifty samples were collected among three sampling areas in Tseung Kwan O.
It was found that residents who live in Lohas Park are strongly against the proposal of SENT landfill extension due to the close proximity of Lohas Park to the landfill. Respondents with higher levels of knowledge about the landfill extension issue have a higher chance to accept the proposal.
It was concluded that the residents in Tseung Kwan O are mostly unsatisfied with inadequate or ineffective public involvement in the existing policy-making process. The government should consider dropping its centralized planning approach and reforming current information-giving channels. Officials should also make efforts to enhance their credibility by cooperating with environmental NGOs.published_or_final_version
Environmental Management
Master
Master of Science in Environmental Management
24
Wong, Wai Man Natalie. "Beyond NIMBY : the emergence of environmental activism and policy change in two Chinese cities." Thesis, University of York, 2014. http://etheses.whiterose.ac.uk/11924/.
Full textAbstract:
The present research article focuses on public participation in the environmental policy-making process in post-Mao China. It is a well-known fact that public administration in socialist China is highly centralised, and that public policies are initiated at the center and then locally administered under the one-party rule. In this monist political system, main stakeholders in the policy process are mainly Chinese Communist Party cadres, together with the ‘authorised’ groups of societies; so far participation from autonomous interest groups and society has been limited at best. In general, the ‘western model’ of civil society, which is characterised by a plurality of interest groups participating in public policymaking, implementation and evaluation, has – so far – been absent in China. This study aims to use environmental protection as a platform to examine the transformations that have been taking place in the environmental policy process and use it as a piece of references to revisit the current academic literature on China. Specifically this article will compare two anti-incinerator protests in Guangzhou (Canton) and Beijing, to illustrate the dynamics surrounding the emergence of public participation in China’s environmental policy process. This study plans to analyse why Guangzhou and Beijing Municipal governments have had different responses and attitudes to address citizens’ grievances. Furthermore, the research will dwell on the establishment up of a Public Consultative and Supervision Committee for Urban Waste Management in Guangzhou City, a public consultative mechanism on waste management, which certainly represents a major novelty and a breakthrough for the policy making process of China. This research project demonstrates how policy adjustment is not determined solely by protests’ outcomes but is also greatly affected by the response of local governments and the development of civil society. Consequently, the discussion is expected to give a new interpretation on environmental management of China.
25
Veilly, Édouard. "Étude théorique des mécanismes de désulfuration des dibenzothiophènes sur CoMo et NiMo." Lille 1, 2003. https://pepite-depot.univ-lille.fr/LIBRE/Th_Num/2003/50376-2003-315.pdf.
Full textAbstract:
Nous avons modélisé par calcul ab-initio (DFT) la réactivité des dérivés alkylés du dibenzothiophène (DBT) en position β du soufre sur la surface (100) du sulfure de molybdène promu par des atomes de Co ou de Ni. Dans un premier temps, la détermination de la stabilité des surfaces promues en fonction des conditions opératoires (T, PH2 et PH2S)montre que celles-ci exposent naturellement des sites potentiellement actifs en hydrodésulfuration (atomes métalliques coordinativement insaturés). L'étude de l'adsorption du DBT et du 4,6-DMDBT sur ces surfaces fait ressortir deux points essentiels: premièrement un changement du mode d'adsorption préférentiel par rapport à celui obtenu sur MoS2 non promu: l'adsorption en mode π1 est favorisée par rapport à une adsorption à plat. Nous rappelons que seul le DBT peut s'adsorber en mode π1. D'autre part, nous observons une forte diminution des énergies d'adsorption en présence de promoteur, due à la diminution du caractère accepteur de la surface. Nous postulons que l'adsorption en mode π1 est à l'origine de la désulfuration directe (DDS) du DBT. En effet ce mode d'adsorption active la liaison C-S et les résultats expérimentaux montrent une augmentation de l'activité de la DDS du DBT en présence de promoteur. Nous postulons aussi que l'adsorption à plat serait à l'origine de la voie dite hydrogénante (HYD), peu sensible à la promotion. C'est la voie de désulfuration majoritaire pour le DMDBT, qui ne peut s'adsorber perpendiculairement. Le calcul du profil énergétique et réactionnel de DDS du DBT sur CoMo et NiMo montre que l'étape thermodynamiquement et cinétiquement limitante correspond à la rupture de la seconde liaison carbone-soufre. La régénération du site actif qui était l'étape limitante sur le catalyseur non promu est maintenant favorisée. L'étude de la désulfuration par la voie HYD montre que les énergies d'activation des étapes élémentaires sont équivalentes pour le DBT et le DMDBT. Cela signifie que dès qu'il n'y a plus de facteurs stériques limitant l'adsorption du DMDBT, il y a une grande similitude de réactivité entre les DBT méthylés en position 4 et 6 et les DBT non méthylés.
26
Boland, Merete. "Slussen – Mine, yours, ours? : A case study on citizens’ engagement and emotions in the planning process." Thesis, Stockholms universitet, Kulturgeografiska institutionen, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-58703.
Full textAbstract:
The rebuilding of Slussen is in this thesis used as a case study on citizens’ emotionally engagement. The purpose is to investigate why people get emotionally engaged and whether it has any effect on the planning process. The aim is to contribute to a discussion on planning where emotions play a larger role than today. Two questions are asked and answered: 1) Why do citizens get emotionally engaged in the Slussenproject? 2) In what way have the citizens’ emotions and engagement been considered and used in the Slussen project? Interviews with “ordinary” citizens and “professionals” are conducted along with a supporting analysis of written material connected to the case. Theories of emotions and protests seen from different angles are used in order to uncover citizens’ motives for engagement. Sherry Arnstein’s Ladder of citizen participation is used in order to make clear what the significance of citizens’ engagement in the Slussen case has. The result shows emotionally engagement based on protests against someone or something where the dismissal of the others’ knowledge of Slussen play a big role. Citizens’ emotions and engagement are seen as something positive and the planning process is affected but only within certain limits decided by the municipality.
27
Casal, Aimée. "Usines d'assainissement des eaux et phénomène Nimby : les conditions environnementales, sociales et individuelles de l'acceptabilité." Paris 5, 2006. http://www.theses.fr/2006PA05H035.
Full textAbstract:
Le Nimby ou Not In My Back Yard (pas dans mon jardin) est un phénomène observé autour de nouveaux équipements dont l'intérêt public est reconnu mais qu'on ne souhaite pas voir s'implanter à proximité de chez soi. Cette recherche a consisté à mettre à jour les conditions environnementales, sociales et individuelles de l'expression du Nimby, dans le cas particulier des usines d'épuration des eaux. Les deux sites localisés dans la banlieue parisienne, présentent des caractéristiques environnementales et de populations différentes et diffèrent également par l'état d'avancement des projets d'agrandissement. 106 riverains ont été interrogés in situ, à l'aide d'un questionnaire semi ouvert et de cartes mentales. Les principaux résultats montrent l'action de variables environnementales (proximité et vue sur l'usine), sociales (impact de la communication), et individuelles (facteurs de stress personnels et caractéristiques sociodémographiques) sur l'acceptabilité ou le rejet de l'usineThe Nimby or Not In My Back Yard is a phenomenon that is commonly observed in the vincinity of new facilities that one recognizes as serving the public interest, but does not wish to see set up near one's home. This research consisted ub updating the environmental, social and individual condtions of the Nimby pheonomen with specific regard to waste water purification plants. The two sites, located in the suburbs of Paris, differ with regard to environmental and population charactersitics, and to the state of advance of each project. 106 esidents were questionned in situ, using a semi open-ended questionnaire and mental maps. Main results show the effect of envrionmental variables (proximity and view on the plant), of social variables (impact of communication), and of individual variables (personnal stress factors and sociodemographic characteristics)) on the aceeptability of rejection of the plant
28
Fernandes, Sarah Ruth Ferreira. "Psicologia e forma??o generalista: do curr?culo m?nimo ?s diretrizes curriculares." PROGRAMA DE P?S-GRADUA??O EM PSICOLOGIA, 2016. https://repositorio.ufrn.br/jspui/handle/123456789/22362.
Full textAbstract:
Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2017-03-20T19:09:36Z
No. of bitstreams: 1
SarahRuthFerreiraFernandes_DISSERT.pdf: 1088849 bytes, checksum: fa05e7446abb322633c04bcce60eca08 (MD5)Approved for entry into archive by Arlan Eloi Leite Silva (eloihistoriador@yahoo.com.br) on 2017-03-21T19:57:31Z (GMT) No. of bitstreams: 1 SarahRuthFerreiraFernandes_DISSERT.pdf: 1088849 bytes, checksum: fa05e7446abb322633c04bcce60eca08 (MD5)
Made available in DSpace on 2017-03-21T19:57:31Z (GMT). No. of bitstreams: 1 SarahRuthFerreiraFernandes_DISSERT.pdf: 1088849 bytes, checksum: fa05e7446abb322633c04bcce60eca08 (MD5) Previous issue date: 2016-07-29
Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior (CAPES)
Desde a regulamenta??o como profiss?o no Brasil, a forma??o em Psicologia se constr?i em torno da ideia de um curso generalista. A mudan?a de Curr?culo M?nimo para Diretrizes Curriculares Nacionais (DCN) abrangeu v?rios debates, a forma??o generalista permaneceu como um consenso, mas com novos sentidos. O objetivo deste trabalho foi investigar as concep??es e estrat?gias atuais de forma??o generalista nos cursos de Psicologia da cidade de Natal-RN. Foram analisados os Projetos Pedag?gicos de Curso (PPC), matrizes curriculares e entrevistas com os coordenadores dos cursos e docentes que participaram da cria??o do curr?culo. A pesquisa contou com quatro cursos participantes, sendo que tr?s forneceram seus PPCs e os quatro participaram por meio de entrevistas. Os dados foram agrupados em categorias criadas a posteriori. Foi constatado um discurso uniforme em torno da defesa de uma forma??o generalista. Os curr?culos s?o conteudistas, mostram uma predomin?ncia da ?rea cl?nica e pouca ?nfase no estudo de fundamentos filos?ficos e hist?ricos, relacionam forma??o generalista a um curr?culo diversificado nas teorias e campos de atua??o profissional, buscando uma integra??o de disciplinas por meio de atividades e experi?ncias pr?ticas. Relacionam pesquisa e integra??o curricular, mas os incentivos na maioria dos cursos s?o parcos. O discurso de compet?ncias est? presente, ainda que se tenha pouca clareza sobre sua concretiza??o. Os cursos comparam ?nfases curriculares ? ?reas da Psicologia, o que torna o termo controverso, revelando uma compreens?o dicot?mica entre forma??o generalista e especialista. Assim, a predomin?ncia de um conteudismo voltado para a pr?tica profissional tem separado teoria e pr?tica e obscurecido uma concep??o cr?tica de forma??o como forma??o humana, filos?fica, hist?rica e cient?fica.
Since its regulation as a profession in Brazil, training in Psychology has been built over the idea of a generalist course. The change from Minimum Curriculum to National Curricular Guidelines (NCG) included a series of discussions and generalist training remained a consensus, but with new meanings. The objective of this study was to investigate the concepts and current strategies on generalist training in psychology courses in the city of Natal-RN. Therefore, we analyzed the Pedagogical Projects of the Courses (PPCs) and conducted interviews with coordinators and professors who participated in the creation of the curriculum. The research included four participating courses, of which three provided their PPCs and the four courses participated in interviews. Data was grouped into categories created a posteriori. We noticed a uniform discourse around the defense of a generalist training. The curricula are conteudists, show predominance of the clinical area and have little emphasis on the study of philosophical and historical foundations, generalist training is related to a diverse curriculum in theories and professional fields, seeking for integration of disciplines through activities and varied practical experience. The courses connect research and curriculum integration, but the incentives in most courses are meager. The competencies discourse is present, although it has not clarity about how to implement it. The courses compare curricular emphases with areas of psychology, which makes the term controversial, revealing a dichotomous understanding between generalist and specialist training. Thus, the predominance of a conteudism related to a professional training have generated a separation between theory and practice and obscures the critical conception of generalist training as a human, philosophical, historical and scientific formation.
29
Andersson, Johanna, and Anna Hellsvik. "Samhällsoro och neutralitet : En fallstudie om grannars reaktioner inför boende för ensamkommande barn och ungdomar." Thesis, Högskolan i Jönköping, Högskolan för lärande och kommunikation, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-21514.
Full textAbstract:
Antalet ensamkommande barn och ungdomar som kommer till Sverige ökar för varje år. Det har gjort att fler kommuner nu tar emot dessa barn och ungdomar. Syftet med denna studie är att undersöka grannskapsrelationer med boende för ensamkommande barn och ungdomar i Värnamo kommun samt grannskapsrelationernas betydelse för barnens och ungdomarnas integration. I studien genomfördes 9 intervjuer med grannar i grannskapet till boendet för ensamkommande barn och ungdomar. Intervjuer genomfördes även med verksamhetschefen Anna Thuresson på HVBhemmet Bryggan samt med medborgarnämndens ordförande Maria Johansson i Värnamo kommun. Intervjuerna speglar både grannars, verksamhetschefens och ordföranden i medborgarnämndens relation till hemmet. Studien består av tre forskningsfrågor som intervjuerna i denna studie är utformade efter. Åsikterna som presenteras i den här uppsatsen är intervjupersonernas egna åsikter. Resultatet av intervjuerna analyseras i förhållande till NIMBY-fenomenet och kontakthypotesen. Studiens syfte, delfrågor, fallstudieprotokoll och intervjuguider togs fram inom ett projekt vid Högskolan i Jönköping. Temat för projektet är grannars reaktioner inför boenden för ensamkommande barn och ungdomar i Jönköpings län. Föreliggande studie är en utav 6 fallstudier genomförda av studenter inom projektet.Ensamkommande flyktingbarn och grannskapsrelationer i Jönköpings län
30
Jacobson, Jerry O. "The ecological context of substance abuse treatment outcomes implications for NIMBY disputes and client placement decisions /." Santa Monica, Calif. : RAND, 2004. http://catalog.hathitrust.org/api/volumes/oclc/57076614.html.
Full text
31
Bean, Janet L. "The NIMBY Syndrome and Low-Cost Manufactured Housing Developments: Can Landscape Architecture Help Overcome Community Opposition?" Thesis, Virginia Tech, 2004. http://hdl.handle.net/10919/9749.
Full textAbstract:
Decent housing available to the working class in America is in very short supply. Manufactured housing could help to meet this basic need. But community groups and politicians often reject manufactured housing because they fear it will have a negative impact upon property values and the aesthetic character of their community. This thesis examines the reasons behind these fears, how the history of manufactured housing has fed into these fears and what design elements can allay these fears. Three site planning typologies are developed using the factors found in the research, that create a good neighborhood for both the residents and outside observers. The typologies inform three designs that illustrate how manufactured housing developments can be designed to fit compatibly into existing communities.Master of Landscape Architecture
32
Ryba, Jakub. "Vliv plánovaného zařízení KIC Odpady (ZEVO) v Karviné na postoje obyvatel a síla vlivu NIMBY efektu." Master's thesis, Vysoká škola ekonomická v Praze, 2014. http://www.nusl.cz/ntk/nusl-198600.
Full textAbstract:
Although there is, in general, a significant level of support of projects related to use of renewable resources, in fact realization of the specific projects usually meets with negative attitude of local residents. This negative attitude is often called as NIMBY ("not in my backyard") effect without further research of particular causes. Therefore, in the theoretical part of this diploma thesis NIMBY effect is defined, as well as various attitudes to its interpretation in literature and also the effect of various compensation on changing residents' attitude. In the practical part, this diploma thesis analyses residents' attitude, the existence and strength of NIMBY effect and the effect of compensation on changing residents attitude towards the specific planned project of building WtE in Karviná city (KIC). The results of this analyzation show, that NIMBY effect is detected, but at the same time it is not the main cause of the negative attitude of residents. Moreover, it has been found out, that the offered compensation have not any important influence on the change of residents' attitude.
33
Pereira, Bruna Rodrigues. "Efeito do processamento m?nimo sobre a qualidade de cultivares de uvas de mesa." Universidade Federal Rural do Rio de Janeiro, 2015. https://tede.ufrrj.br/jspui/handle/jspui/2101.
Full textAbstract:
Submitted by Celso Magalhaes (celsomagalhaes@ufrrj.br) on 2017-10-18T10:52:37Z
No. of bitstreams: 1
2015 - Bruna Rodrigues Pereira.pdf: 2671756 bytes, checksum: b38e36947fda465d9d78272a81b2e947 (MD5)Made available in DSpace on 2017-10-18T10:52:37Z (GMT). No. of bitstreams: 1 2015 - Bruna Rodrigues Pereira.pdf: 2671756 bytes, checksum: b38e36947fda465d9d78272a81b2e947 (MD5) Previous issue date: 2015-09-29
Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior - CAPES
This study aimed to evaluate the quality of 'Sweet Celebration' and 'Sweet Globe' grapes, subjected to minimally processing, as well as the effectiveness of three rinsing solutions (water, sodium metabisulfite and chlorine) and pedicel cut intensity (with and without pedicel), in the conservation of these fruits during 12 days refrigerated storage to temperature at 8 ? C . The experiments were performed at Embrapa Agroind?stria de alimentos. For both experiments were applied rinse solutions, with water, sodium metabisulfite (20 mg. L-1) and chlorine (8 mg. L-1), that characterized the treatments, during the rinse step of minimally processing grapes, it being used two pedicel cut intensities:full cut and maintenance of a little fragment about 0,5 cm. Quality analyzes were performed at 0, 3, 6, 9, and 12 days of storage, and it was determined fresh weight loss cumulative , fruit firmness, color analysis, acidity, pH, total soluble solids, SST/ATT rate , sugars (sucrose , fructose and glucose) and enzymatic activity of pectinametilesterase for both cultivars. For Sweet Celebration grapes were also carried out the percentage fruit loss (9th and 12th day of storage) and anthocyanins. In 'Sweet Globe' grapes were realized total carotenoids, chlorophylls (a, b and total) and microbiological analyses. To the cultivate Sweet Celebration was possible identify berries out of commercial standard in the 9? day of storage. In the fresh weight loss cumulative, berries without pedicel had higher loss in the rinse with water from the 6th day of storage. For berries with pedicel the rinse with chlorine had the lowest fresh weight loss cumulative up 9th day of storage. For the firmness , berries without pedicel (4.44 N) had lower firmness compared to berries with pedicel (5.04 N), there wasn't significant difference between the rinsing solutions (p> 0.05). To cultivate Sweet Globe, berries with pedicel and rinsed with water had higher fresh weight loss cumulative from the 9th day of storage. In the berries without pedicel the rinse with water led to lower fresh weight loss cumulative from the 6th day of storage. There was no difference between the isolated factors rinse solutions and pedicel cut intensit to the firmness analysis. All rinse solutions were efficient in the microbiological analysis, so the minimally processed Sweet Globe grapes were in the standard established by law for human consumption
O presente trabalho objetivou avaliar a qualidade de uvas ?Sweet Celebration? e ?Sweet Globe?, submetidas ao processamento m?nimo, assim como a efetividade de tr?s solu??es enxaguantes (?gua, metabissulfito de s?dio e cloro) e da intensidade de corte do pedicelo (com e sem pedicelo), na conserva??o desses frutos, durante 12 dias de armazenamento refrigerado a 8?C. Os experimentos foram realizados na Embrapa agroind?stria de alimentos. Para ambos experimentos, foram aplicadas solu??es de enx?gue, com ?gua, metabissulfito de s?dio (20 mg. L-1) e cloro (8 mg. L-1), que caracterizaram os tratamentos, durante a etapa de enx?gue do processamento m?nimo das uvas, sendo adotadas duas intensidades de corte do pedicelo: retirada total do mesmo e manuten??o de um pequeno fragmento com aproximadamente 0,5 cm. Foram realizadas an?lises de qualidade nos 0, 3, 6, 9, e 12 dias de armazenamento, sendo determinadas a perda acumulada de massa fresca, firmeza dos frutos, an?lise de cor, acidez, pH, s?lidos sol?veis totais, rela??o SST/ATT, a??cares (sacarose, frutose e glicose) e atividade enzim?tica da pectinametilesterase para as duas cultivares. Para as uvas Sweet Celebration, foram tamb?m realizadas a porcentagem de perda de frutos (9? e 12? dia de armazenamento) e antocianinas totais. Para as uvas ?Sweet Globe?, foram realizadas as an?lises de caroten?ides totais, clorofilas (a, b e total) e an?lise microbiol?gica. Para a cultivar Sweet Celebration, foi poss?vel detectar bagas fora de padr?o comercial no 9?dia de armazenamento. Na perda acumulada de massa fresca, bagas sem pedicelo apresentaram maior perda no enx?gue com ?gua a partir do 6? dia de armazenamento. Para bagas com pedicelo o enx?gue com cloro apresentou a menor perda acumulada de massa fresca at? o 9? dia de armazenamento. Para a firmeza das bagas, bagas sem pedicelo (4,44 N) apresentaram menor firmeza, quando comparadas ?s bagas com pedicelo (5,04 N), n?o havendo diferen?a significativa entre as solu??es de enx?gue (p> 0,05). Para a cultivar Sweet Globe, bagas com pedicelo e enxaguadas com ?gua, apresentaram maior perda acumulada de massa fresca , a partir do 9? dia de armazenamento. Para bagas sem pedicelo o enx?gue com ?gua levou a menor perda acumulada de massa fresca a partir do 6? dia de armazenamento. N?o houve diferen?a entre os fatores isolados solu??es de enx?gue e intensidade de corte do pedicelo para a an?lise de firmeza. Todas as solu??es de enx?gue foram eficientes do ponto de vista microbiol?gico, estando as uvas Sweet Globe minimamente processadas dentro do padr?o estabelecido pela legisla??o para consumo humano
34
Santos, Rudney Aminadab. "Crescimento municipal comparado : os casos de Charqueadas e S?o Jer?nimo, 1985-2006." Pontif?cia Universidade Cat?lica do Rio Grande do Sul, 2009. http://tede2.pucrs.br/tede2/handle/tede/3869.
Full textAbstract:
Made available in DSpace on 2015-04-14T14:26:47Z (GMT). No. of bitstreams: 1
412991.pdf: 974662 bytes, checksum: 39cbb82d7e4dd0c91ece2fc123314775 (MD5)
Previous issue date: 2009-03-31O objetivo central deste trabalho ? estudar o munic?pio de Charqueadas, considerando o desenvolvimento do munic?pio vizinho, S?o Jer?nimo, como par?metro de compara??o. Charqueadas apresentou um crescimento populacional e econ?mico significativamente maior que o Estado como um todo. Al?m disso, em 1982, Charqueadas se emancipou do munic?pio de S?o Jer?nimo e este ?ltimo tem apresentado crescimento mais lento, acompanhado de uma diminui??o de sua popula??o. O diferencial de crescimento econ?mico entre os dois munic?pios foi analisado ? luz das teorias de desenvolvimento regional, fornecendo uma maior sustenta??o te?rica para a investiga??o. Al?m disso, foram feitas entrevistas com alguns agentes p?blicos e do setor privado dos dois munic?pios na tentativa de melhor mensurar as causas dos diferenciais de crescimento. Charqueadas, o munic?pio mais jovem, beneficiou-se no processo de emancipa??o e, sobretudo, com a presen?a da estrutura industrial de uma grande empresa que impulsionou a forma??o do p?lo metal-mec?nico municipal. S?o Jer?nimo, o munic?pio mais velho, n?o conseguiu incluir-se no mesmo processo de industrializa??o, persistindo num padr?o de atividade econ?mica centralizado na agroind?stria, com?rcio e servi?os.
35
Kim, Hyuncheol. "Economic perspectives on the siting of a municipal solid waste facility." Thesis, University of Hawaii at Manoa, 2003. http://proquest.umi.com/pqdweb?index=0&did=765031531&SrchMode=1&sid=2&Fmt=2&VInst=PROD&VType=PQD&RQT=309&VName=PQD&TS=1233361937&clientId=23440.
Full text
36
Price, Cody Raymond. "Alleviating Affordable Housing Stigma by Design." The Ohio State University, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=osu1500476247012088.
Full text
37
Peeples, Jennifer Ann. "Place and identity as rhetorical tactics in locally unwanted land use disputes /." Thesis, Connect to this title online; UW restricted, 2000. http://hdl.handle.net/1773/8214.
Full text
38
Forsén, Emil, and Linus Rustas. "Studenters attityder till kärnkraft : En kvantitativ undersökning om skillnader i attityder till kärnkraft i förhållande till campustillhörighet, kön samt politisk ställning." Thesis, Uppsala universitet, Kulturgeografiska institutionen, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-391926.
Full textAbstract:
Ju mer elektrifierad världen blir desto viktigare blir det att de rådande tillvägagångssätten som producerar el inte släpper ut mer farliga utsläpp än vad som är nödvändigt i hopp om att minska den globala uppvärmningen. IPCC hävdar att el producerad från kärnkraft är nödvändigt i framtiden om vi ska nå globala klimatmål. Kärnkraft är ett kontroversiellt ämne med många delade åsikter. Det blir då viktigt att undersöka hur dessa åsikter bildas och vad för underliggande faktorer som kan resultera i skillnader i attityder till kärnkraft. Därför har denna studie utförts för att undersöka om det finns skillnader mellan utbildningsinriktning, kön och politisk tillhörighet i hänsyn till attityder gentemot kärnkraft. Detta har gjorts genom en enkätundersökning där resultaten sedan har statistiskt säkerställts i enlighet med Wilcoxon’s rangsummetest. Det visar sig att inom alla tre faktorer så finns det skillnader i attityder till kärnkraft med en säkerhet över 95%. Några av de tydligaste gruppskillnaderna som påvisats är följande. Om individen studerar någonting mer tekniskt finns ett mer positivt förhållningssätt till kärnkraften. Om individen är man finns även där positivare attityder kring kärnkraften. Om individen placerar sig själv till vänster på den politiska skalan visar denna studie att individen har starka negativa attityder till kärnkraften.
39
Zanotello, Tatiane Cristina. "Adição de fósforo (P) em catalisadores NiMo, suportados em γ-Al2O3, Al2O3/TiO2 e TiO2 - efeito na hidrodessulfurização do tiofeno." Universidade Federal de São Carlos, 2013. https://repositorio.ufscar.br/handle/ufscar/4108.
Full textAbstract:
Made available in DSpace on 2016-06-02T19:56:49Z (GMT). No. of bitstreams: 1
4974.pdf: 3642452 bytes, checksum: 9983d14f77babcbd0c76cb3ef274c7c6 (MD5)
Previous issue date: 2013-02-18Universidade Federal de Sao Carlos
Mo, NiMo or NiMoP HDS catalysts were supported on Al2O3, Al2O3-TiO2 or TiO2. These supports were synthesized via sol-gel and in the case o TiO2 it was used a commercial sample. The active phases were introduced by impregnation. Supports and catalysts in the oxide form were characterized by X-ray diffraction (XRD), diffuse reflectance UV-Vis spectroscopy (DRSUV-Vis), thermogravimetric analyses (TG), temperature-programmed reduction with H2 (TPR-H2), N2 adsorption/desorption, energy dispersive X-ray spectroscopy (EDS), X-ray fluorescence (XRF), temperature-programmed desorption of NH3 (TPD-NH3), high resolution transmission electron microscopy (HRTEM) and evaluated at 300°C in the HDS of thiophene, used as a model molecule. Alumina presented a high specific surface area and meso/macroprous characteristics, allowing a high dispersion of the active phases, as was evidenced by XRD and DRSUV-VIS data. A HRTEM image of a NiMo/Al2O3 catalyst showed the presence of crystalline MoS2 whose activity was substantially promoted by the presence of Ni. The NiMo catalysts were active in the HDS of thiophene, however, the activity was enhanced significantly by the incorporation of P. This result corroborates the positive influence of P in the preparation of HDS catalysts. It was suggested that P must participate as promoter in the formation of the NiMoS phase during the sulfidation process of the Ni and Mo oxides. The supported NiMoP catalysts prepared in this work were more active than a commercial NiMoP/ Al2O3 catalyst, with this result validating the preparation procedures used here. The titania addition in the alumina framework led to NiMo catalysts possessing lower activity. That behavior was attributed to the formation of Ni and Mo sulfides without interaction diminishing the generation NiMoS phase, which is highly active in the HDS of sulfured organic compounds.
Catalisadores para hidrodessulfurização (HDS) contendo Mo, NiMo ou NiMo e o aditivo fósforo (P), foram suportados sobre Al2O3, Al2O3-TiO2 ou TiO2. A alumina e a alumina-titânia foram sintetizadas via sol-gel e, no caso da titânia pura, utilizada uma amostra comercial. A introdução dos sais precursores da fase ativa foi realizada via impregnação. Suportes e catalisadores na forma de óxidos foram caracterizados através de difração de raios X (DRX), espectroscopia por refletância difusa no ultravioleta visível (DRSUV-VIS), termogravimetria (TG), redução com hidrogênio à temperatura programada (RTP-H2), adsorção/dessorção de N2, espectroscopia de energia dispersiva de raios X (EDX), fluorescência de raios X (FRX), dessorção de amônia a temperatura programada (TPD-NH3), microscopia eletrônica de transmissão de alta resolução (HRTEM) e avaliados a 300⁰C na HDS do tiofeno. A alumina apresentou uma alta área superficial específica e características meso/macroporosa, possibilitando alta dispersão das fases ativas, conforme evidenciado por DRX e dados de DRSUV-VIS. A imagem de HRTEM do catalisador NiMo/Al2O3 mostrou a presença de MoS2 cuja atividade foi promovida substancialmente pela presença de Ni. Os catalisadores NiMo sobre os suportes utilizados foram ativos no HDS do tiofeno, entretanto, essa atividade foi melhorada pela incorporação de P. Esse resultado ratifica a influência positiva da utilização desse aditivo na preparação de catalisadores de HDS. O fósforo deve atuar como um promotor na formação de espécies NiMoS durante o processo de sulfetação dos óxidos de Mo e Ni. Os catalisadores NiMoP preparados neste trabalho apresentaram atividade específica superior à de um catalisador NiMoP/Al2O3 comercial, o que valida os procedimentos de preparação utilizados no trabalho. A adição de titânia na alumina durante a síntese sol-gel conduziu a catalisadores com menor atividade. Esse resultado foi atribuído à formação de sulfetos de Ni e Mo não interativos, com a consequente diminuição da formação da fase NiMoS de alta atividade no HDS de compostos organo-sulfurados.
40
EL, QOTBI MOHAMMED. "Catalyseurs bifonctionnels a base de sulfure de nimo dans la zeolithe hy : application a l'hydrocraquage." Caen, 1994. http://www.theses.fr/1994CAEN2046.
Full textAbstract:
L'hydrocraquage du n-heptane necessite un catalyseur bifonctionnel. Dans les catalyseurs examines ici, la fonction acide est apportee par une zeolithe hy et la fonction hydrogenante est assuree par un sulfure de ni et/ou mo. On montre qu'il est plus avantageux d'introduire les metaux ni et mo dans la zeolithe afin de reduire la distance site acide-site hydrogenant. La conversion de l'heptane, en presence de dimethyldisulfure comme agent sulfurant, est etudiee dans un reacteur integral sous pression d'hydrogene (8 mpa) et a 250-450c. La conversion du benzene mesuree simultanement avec celle de l'heptane evalue directement la fonction hydrogenante. Nous nous interesserons particulierement a la selectivite dans la transformation du n-heptane. Pour ameliorer la selectivite en heptanes isomeres on a module l'acidite de la zeolithe en la desaluminant. Le taux maximum d'isomeres obtenu sur nos catalyseurs est 15%. Ceci est du a l'insuffisance de la fonction hydrogenante car dans le cas ideal ce taux atteint 60%. Les isomeres sont formes davantage par le mecanisme pcp (protonation cyclopropanique) que par alkyl shift. Quant au craquage de l'heptane, il resulte principalement de la coupure d'un ion carbenium c#+#7. Il y a aussi une contribution d'un mecanisme bimoleculaire. Sur le catalyseur le moins acide (nimo/hy-17) la conversion du n-heptane baisse aux temperatures intermediaires. Ce phenomene se retrouve sur un melange mecanique de zeolithe hy et de nimo/al#2o#3. Une etude cinetique a montre que l'anomalie de conversion etait due a un empoisonnement des sites de la zeolithe par des produits de la reaction de l'heptane, plutot qu'a la grande distance entre les deux types de sites
41
Wery, Madeleine. "Synthèse de catalyseurs de type coeur@coquille pour le procédé d’hydrodésulfuration en phase gazeuse." Thesis, Strasbourg, 2018. http://www.theses.fr/2018STRAF036.
Full textAbstract:
Afin de réduire la teneur en soufre des essences, l’hydrodésulfuration transforme les molécules soufrées en hydrocarbures en présence d’un catalyseur supporté (métaux de transition sulfurés : MoS2) et dopé (Co, Ni). Cette phase active, déposée sur des nanoparticules, présente un nombre plus important de défauts, sites actifs essentiels à la catalyse. Les nanoparticules ont un ratio S/V élevé, une grande réactivité de surface avec une juste utilisation des quantités de métaux. L’objectif de ce projet de thèse est de synthétiser des catalyseurs nanométriques de type coeur@coquille possédant une meilleure activité catalytique qu’un simple mélange mécanique de deux métaux sulfurés. Le coeur est composé de Fe3O4 ou de nanodiamants et la coquille de MoS2, NiMoS, CoMoS ou NiCoMoS, supporté sur du TiO2 ou de la γ-Al2O3. Une réaction modèle (HDS du thiophène) a été utilisée afin d’évaluer l’activité catalytique et d’optimiser la structure du catalyseur. L’étude portera sur les paramètres de synthèse et l’effet de la taille du coeur, la synthèse utilisée, les interactions entre le coeur et la coquille, le support, la (co)– promotion (Ni/Co) et l’activation par la températureIn hydrodesulfurization of fossil fuels, the sulfur levels are reduced by sulfur extraction from hydrocarbons by using supported catalysts (MoS2), doped (Co, Ni). Ultra-deep hydrodesulfurization will be achieved by improving new catalysts. Nanoparticles are a promising candidate with their high S/V ratio and permit to use the precise amount of metallic sulphide. The aim of this thesis is the synthesis of core@shell nanometric catalyst with improved activities. Core composed of Fe3O4 or nanodiamonds will be surrounded by a shell formed of MoS2, NiMoS, CoMoS or NiCoMoS, supported on TiO2, γ-Al2O3. Model reaction (thiophene) has allowed to compare conversion rates between each catalyst. Additionally, characterizations have provided a better understanding of the HDS catalyst structure and performances. Some factors have been investigated such as the size of the core, theinteractions between the core and the shell, the type of synthesis, the support chosen, the synergetic effect with doping ions and also the activation of the catalyst at low temperature
42
Nguyen, Minh Tuan. "Support acidity effects of NiMo sulfide catalysts in hydrodenitrogenation of quinoline, indole and Coker Gas Oil." Thesis, Lyon, 2016. http://www.theses.fr/2016LYSE1209/document.
Full textAbstract:
L'objectif de la thèse est d'identifier les effets de l'acidité de catalyseurs sulfures supportés en hydrodésazotation (HDN) afin d'améliorer les performances catalytiques.Un modèle cinétique de Langmuir-Hinshelwood y compris le transfert de masse liquide-vapeur a été utilisé pour analyser les données cinétiques obtenues à partir de l'HDN de la quinoléine et de l'indole sur NiMo(P)/Al2O3 et NiMo(P)/ASA. Les résultats de la modélisation cinétique a montré que le NiMo(P)/ASA a favorisé l'hydrogénation du 1,2,3,4-tétrahydroquinoléine en decahydroquinoléine, qui est l'étape limitant de vitesse de l'HDN de la quinoléine. Cependant, l'effet de promotion du NiMo(P)/ASA pour les étapes d'hydrogénation de l'HDN de l'indole n'a pas été mis en évidence. En plus, le NiMo(P)/ASA a favorisé fortement les réactions d'élimination de l'atome d'azote. Les composés azotés adsorbent plus fortement sur NiMo (P)/ASA. La caractérisation par spectroscopie infrarouge de CO a suggéré que ces résultats pourraient être liés à la modification des propriétés électroniques de la phase NiMoS due à l'acidité plus élevée de l'ASA.La quinoléine est un fort inhibiteur pour l'HDN de l'indole alors que l'effet inhibiteur de l'indole sur l'HDN de la quinoléine était négligeable sur NiMo(P)/Al2O3 et plus important sur NiMo(P)/ASA. L'HDN d'un mélange de Straight Run et Coker Gazole a permis d'évaluer le mécanisme réactionnel et de comparer la réactivité vers HDN de différents composés. L'HDN des composés neutres a été inhibée par une adsorption forte des composés basiques. Les composés de type carbazole et quinoléine étaient réfractaires. Le NiMo(P)/ASA a probablement favorisé plus les craquages et montré une désactivation plus rapide que le NiMo(P)/Al2O3The thesis objective is to identify the support acidity effects of sulfide catalysts in hydrodenitrogenation (HDN) reactions in order to improve the HDN catalysts.Kinetic data obtained from quinoline and indole HDN, over NiMo(P)/Al2O3 and NiMo(P)/ASA catalysts were analyzed by a Langmuir-Hinshelwood kinetic model, including liquid-vapor mass transfer, in order to estimate kinetic and adsorption parameters. Kinetic modeling results indicated that the NiMo(P)/ASA catalyst favored the hydrogenation of 1,2,3,4-tetrahydroquinoline into decahydroquinoline, which is the rate limiting step of quinoline HDN. However, the promoting effect of the NiMo(P)/ASA in hydrogenation steps of indole HDN was not evidenced. In quinoline and indole HDN, the NiMo(P)/ASA showed a strong promoting effect in N-removal reactions. Nitrogen compounds adsorb more strongly over NiMo(P)/ASA. Characterization by Infra-Red spectroscopy of CO suggested that these results might be related to the modification of the electronic properties of promoted NiMoS phase due to higher acidity of ASA.The HDN of quinoline-indole mixture showed a strong inhibiting effect of quinoline on indole HDN whereas the inhibiting effect of indole on quinoline HDN was negligible over NiMo(P)/Al2O3 and more important over NiMo(P)/ASA. The HDN of a mixture of Straight Run and Coker Gas Oil allowed an access to the HDN mechanism and comparison of reactivity towards HDN of different compounds. The HDN of neutral compounds was inhibited by the stronger adsorption of basic compounds. Carbazole-type and quinoline-type compounds were refractory. The NiMo(P)/ASA likely favored more cracking reactions and as well showed a faster deactivation rate than the Al2O3 counter catalyst
43
Santos, Gisele Lopes do. "Curr?culo m?nimo do Estado do Rio de Janeiro: reflex?es sobre a disciplina biologia." Universidade Federal Rural do Rio de Janeiro, 2017. https://tede.ufrrj.br/jspui/handle/jspui/2212.
Full textAbstract:
Submitted by Celso Magalhaes (celsomagalhaes@ufrrj.br) on 2018-03-14T12:18:08Z
No. of bitstreams: 1
2017 - Gisele Lopes dos Santos.pdf: 3827549 bytes, checksum: bb5ae05f3998cf1fc3f662ddc86731d0 (MD5)Made available in DSpace on 2018-03-14T12:18:08Z (GMT). No. of bitstreams: 1 2017 - Gisele Lopes dos Santos.pdf: 3827549 bytes, checksum: bb5ae05f3998cf1fc3f662ddc86731d0 (MD5) Previous issue date: 2017-06-01
This work has as objective reflect on the emergence and implementation of the Minimum Curriculum (CM) in the State Education Network, specifically in the Biology discipline, in 2012, presented by the State Department of Education of the State of Rio de Janeiro (SEEDUC). From the socio-historical studies of the curriculum, it is sought to understand the elements that supported the emergence and implantation of the CM and how this proposal refines the external evaluations in the state, ENEM (National High School Exam) and SAERJ (Evaluation of Education in the State of Rio de Janeiro). This work constitutes a qualitative research, based on theoretical and methodological, based on the curricular studies dialoguing with the empirical sources constituted by the documents related to the emergence and implantation of the curriculum (information of the SEEDUC website, Resolution 4.866 of February 14, 2013, Minimum Curriculum of Biology, Earnings by Results SEEDUC) and by published articles on the subject. The initial objective is that through the interbreeding of these written sources one can construct a narrative about the minimal curriculum of the biology curricular component. From the analysis of the official documents regarding the CM, with regard to the concept of skills and competences, it is possible to note its proximity to the external evaluations, since the curriculum and other strategies created by SEEDUC aim to corroborate with the increase of the index Of State education in external evaluations such as IDEB (Indicator and Development of Basic Education). The CM of Biology presents skills and competences, which SEEDUC claims to be organized progressively in the official document - from the simplest or most concrete, towards a more complex or abstract one. However, analyzing this document, the two-month course distributed in the CM of biology, it is possible to sustain that this progression of contents does not always happen, it presents in a sparse and irregular form. In this sense, it was possible to perceive when analyzing the document of the CM of Biology that the teaching continues to be presented in a fragmented way; Hindering the student to associate what he / she learns in school with his daily life. After analyzing the CM of Biology, the idea that the meanings of the concepts of competences and abilities, although approaching the cognitive-constructivist side of Perrenoud, is also moved towards Tyler's compartamentalism, when he centralizes his questions in External evaluations, the accountability curriculum and performativity
Este trabalho tem como objetivo refletir sobre o surgimento e implanta??o do Curr?culo M?nimo (CM) na rede Estadual de Educa??o, especificamente na disciplina Biologia, em 2012, apresentado pela Secretaria de Estado de Educa??o do Estado do Rio de Janeiro (SEEDUC). A partir dos estudos s?cio-hist?ricos do curr?culo, busca-se compreender os elementos que sustentaram o surgimento e implanta??o do CM e como esta proposta se afina as avalia??es externas presentes no estado, ENEM (Exame Nacional do Ensino M?dio) e SAERJ (Sistema de Avalia??o da Educa??o do Estado do Rio de Janeiro). Este trabalho constitui uma pesquisa qualitativa, a base te?rico-metodol?gica, apoiou-se nos estudos curriculares dialogando com as fontes emp?ricas constitu?das pelos documentos relativos ao surgimento e implanta??o do curr?culo (informa??es do site da SEEDUC, Resolu??o 4.866 de 14 de fevereiro de 2013, Curr?culo M?nimo de Biologia, Bonifica??o por Resultados SEEDUC) e por artigos publicados a respeito do tema. O objetivo inicial ? que se possa atrav?s do intercruzamento destas fontes escritas construir uma narrativa a respeito do curr?culo m?nimo da componente curricular biologia. A partir da an?lise dos documentos oficiais a respeito do CM, no que se refere ao conceito de habilidades e compet?ncias, nota-se sua proximidade com as avalia??es externas, visto que o curr?culo e outras estrat?gias criadas pela SEEDUC almejam corroborar com a eleva??o do ?ndice da educa??o do Estado em avalia??es externas como o IDEB (Indicador e Desenvolvimento da Educa??o B?sica). O CM de Biologia apresenta habilidades e compet?ncias, as quais a SEEDUC argumenta estar organizada de forma progressiva no documento oficial ? da mais simples ou concreta, em dire??o a uma mais complexa ou abstrata. Todavia, analisando este documento, os bimestres letivos distribu?dos no CM de biologia, ? poss?vel sustentar que esta progress?o de conte?dos nem sempre acontece, apresenta-se de forma esparsa e irregular. Neste sentido, foi poss?vel perceber ao analisar o documento do CM de Biologia que o ensino continua a ser apresentado de forma fragmentada; obstaculizando o estudante associar o que aprende na escola com seu cotidiano. Ap?s an?lise do CM de Biologia, sustenta-se a ideia de que os sentidos dos conceitos de compet?ncias e habilidades embora se aproximem da vertente cognitivoconstrutivista, de Perrenoud, tamb?m se movimenta em dire??o ao compartamentalismo de Tyler, quando centraliza suas quest?es em avalia??es externas, no curr?culo do accountability e na performatividade.
44
Cordeiro, Karine da Silva. "Direitos fundamentais sociais e m?nimo existencial : uma pauta emancipat?ria para o desenvolvimento da cidadania." Pontif?cia Universidade Cat?lica do Rio Grande do Sul, 2016. http://tede2.pucrs.br/tede2/handle/tede/6786.
Full textAbstract:
Submitted by Setor de Tratamento da Informa??o - BC/PUCRS (tede2@pucrs.br) on 2016-06-27T19:52:20Z
No. of bitstreams: 1
TES_KARINE_DA_SILVA_CORDEIRO_PARCIAL.pdf: 463410 bytes, checksum: 35c7e6213e8482572941194e12ea3193 (MD5)Made available in DSpace on 2016-06-27T19:52:20Z (GMT). No. of bitstreams: 1 TES_KARINE_DA_SILVA_CORDEIRO_PARCIAL.pdf: 463410 bytes, checksum: 35c7e6213e8482572941194e12ea3193 (MD5) Previous issue date: 2016-03-22
This paper, bearing the title Fundamental social rights and existential minimum: An emancipation agenda for the development of citizenship, seeks to locate the function of the fundamental social rights existential minimum in fostering citizenship within the institutional framework of pluralistic democracy and, as a result, in conceiving the human being as an autonomous decision-making center, and also to establish criteria guiding the outline of its normative content. For this, John Rawls?s theory of justice as fairness in its original version is investigated, especially in its political outline, as well as the criticism and counter-arguments brought by Amartya Sen?s idea of justice and specifically the capabilities approach by Amartya Sen, Martha Nussbaum and Elizabeth Anderson, thus setting up a theoretical common ground in order to understand the existential minimum as a fundamental social right. The origins and evolution of the concept of citizenship are reviewed, establishing its characteristic elements and deducing its meaning in today?s political scenario from the different currents concerning its coming into being. Arguments are analyzed about the concepts of citizenship offered by the republican, communitarian, and liberal currents, pointing their deficiencies and biases and showing that the social dimension of citizenship shares the same space and the same importance status of both remaining dimensions (civil and political citizenship), stressing that the notion of citizenship as a whole is jeopardized in the case any one of them is missing. A point is made that a basic set of social contributions is an essential part of democratic citizenship. The function of the existential minimum is defined as the fostering and (re)building of citizenship. The close link between the existential minimum and the exercise of democracy and the full attainment of citizenship is highlighted. Finally, it is proposed that the existential minimum?s normative content must include a fairness index of primary social goods and/or the material (factual) conditions that allow people access to these interests, while taking into account the society?s peculiarities.
O presente trabalho, que tem por t?tulo Direitos fundamentais sociais e m?nimo existencial: uma pauta emancipat?ria para o desenvolvimento da cidadania, tem como objetivos, de um a lado, situar a fun??o do m?nimo existencial dos direitos fundamentais sociais na promo??o da cidadania no contexto institucional de uma democracia pluralista e, como decorr?ncia, na edifica??o da pessoa humana enquanto centro aut?nomo de decis?o; de outro, estabelecer par?metros para orientar o delineamento do seu conte?do normativo. Para tanto, investiga a teoria da justi?a como equidade de John Rawls, em sua vers?o original e, sobretudo, na concep??o pol?tica, bem como as contraposi??es e cr?ticas trazidas pela ideia de justi?a de Amartya Sen e, especialmente pela abordagem das capacidades de Amartya Sen, Martha Nussbaum e, tamb?m, Elizabeth Anderson, de modo a lograr um adequado embasamento te?rico para a compreens?o do m?nimo existencial enquanto direito fundamental social. Examina o surgimento e a evolu??o do conceito de cidadania, delimitando seus elementos caracter?sticos e haurindo o seu significado no contexto pol?tico atual a partir das diferentes correntes sobre o seu processo de forma??o. Analisa os argumentos das concep??es de cidadania das correntes republicana, comunit?ria e liberal, mostrando as insufici?ncias e distor??es e demonstrando que a dimens?o social da cidadania compartilha o mesmo espa?o e est? no mesmo patamar de import?ncia e valor que as outras duas dimens?es, a cidadania civil e a cidadania pol?tica, sublinhando que, sem qualquer delas, fica comprometida a no??o de cidadania como um todo. Aponta que um conjunto b?sico de presta??es sociais ? parte essencial da cidadania democr?tica. Desvenda que a fun??o do m?nimo existencial ? a promo??o e a (re)constru??o da cidadania. Ressalta a estreita vincula??o do m?nimo existencial com o exerc?cio da democracia e a plena realiza??o da cidadania. E prop?e que o conte?do normativo do m?nimo existencial deve abranger um ?ndice equitativo de bens prim?rios sociais e/ou as condi??es materiais (f?ticas) que possibilitem ?s pessoas o acesso a esses bens, considerando as peculiaridades da sociedade.
45
Lindholm, Jennifer, and Sarah Seemann. "Grannskapets potentiella roll för integration : En studie om ensamkommande barn och deras grannskapsrelationer." Thesis, Högskolan i Jönköping, Högskolan för lärande och kommunikation, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-21598.
Full textAbstract:
Denna studie är en del av en flerfallstudie i Jönköpings län och undersöker ett HVB-hem för ensamkommande barn och ungdomar i Jönköpings kommun. Syftet är att med hjälp av en kvalitativ fallstudie undersöka grannskapets potentiella roll för de ensamkommande barnen och ungdomarnas integration. Semistrukturerade intervjuer genomfördes med grannar (n=11) och med representanter för HVB-hemmet (n=3). Studien undersöker även vilka kontakter som finns mellan HVB-hemmet och grannskapet, samt vilka informationsstrategier som använts i etableringsprocessen av HVB-hemmet och den betydelse dessa kan ha haft för hemmets mottagande. Studien visar att grannskapet uppfattar det undersökta HVB-hemmet som anonymt och att det finns en tydlig brist på information och kunskap om hemmet. Grannskapet efterfrågar mer information om HVB-hemmet samt har en generellt likgiltig alternativt positiv attityd till HVB-hemmets placering och de ensamkommande barnen. Acceptansen till HVB-hemmet kan bero på den informationsstrategi verksamheten valde gentemot grannskapet inför verksamhetsetableringen i området eller den låga kunskap som existerar bland grannarna angående hemmets verksamhet, men ytterligare faktorer skulle kunna ges som förklaring. Bristen på kontakt som finns mellan HVB-hemmet och grannskapet skulle kunna förklaras genom verksamhetens val att hålla en låg profil i grannområdet. Studien kan även urskilja att det finns en outnyttjad potential då grannskapet möjligen kan spela en viktig roll för ungdomarnas integration.This study is a part of a wider multiple case study conducted in Jönköping county. It is examining a residential HVB-home for unaccompanied refugee children in Jönköping city. The purpose of this qualitative case study is to examine the neighborhood’s potential role in integration of unaccompanied refugee children. Semi-structured interviews were carried out with neighbors (n=11) and with representatives for the HVB-home (n=3). Furthermore, the study examines what information strategies have been used in the establishment process of HVB-home, along with what this has meant for the reception of the home in the neighborhood. The study finds that the neighborhood perceives the examined HVB-home as anonymous and there is a noticeable lack of information and knowledge about the home amongst the neighbors. The neighbors requests more information about the HVB-home and generally have indifferent or positive attitudes towards the location and existence of the HVB-home and the unaccompanied refugee children. The degree of acceptance of the home could be explained by the information strategy the HVB-home initially chose for the establishment of the home or the lack of knowledge about the home amongst the neighbors, although further explanations could be given. The lack of contact between the HVB-home and the neighborhood could partially be explained by the HVB-home’s choice to keep a low profile in the neighborhood. In addition, the study can distinguish an unexplored potential for the neighborhood to possible play an important role in the integration of the unaccompanied refugee children.
Ensamkommande flyktingbarn och grannskapsrelationer i Jönköpings län
46
Engberg, Maya, and Sara Mååg. "Metaanalys av vargforskningen i Sverige/Norgemellan åren 2000-2014." Thesis, Högskolan Dalarna, Sociologi, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:du-18645.
Full textAbstract:
Vargens återkomst har gett upphov till olika attitydsyttringar, boende i vargområden är i regel mernegativa till vargen än de som bor utanför dessa områden. Genom att mäta vilka attityder som finnstill varg kan forskare ge incitament till makthavare om hur vargförvaltningen upplevs avallmänheten.Den här studien är en kartläggning av forskningsläget under åren 2000 – 2014 rörande attityder tillvarg i Sverige och Norge. De variabler/grupper av individer som forskare inom området använderför att mäta vem som har vilken attityd är jägare, djurägare, boende på landsbygd utanför vargområde, boende på landsbygd i vargområde, boende i stad med flera. Vi finner att studierna tar uppteorierna social representation, centrum och periferi och NIMBY (Not In My Backyard). Manproblematiserar dessa i varierande grad utifrån de teorier som används. Något vi menar ärproblematiskt då forskningen blir enkelspårig och grund. Vi vill se en bredare problematiseringutifrån de teorier som redan framkommit i forskningen och ifrågasätter varför inte fler teorier ochvariabler undersöks. Vi efterfrågar ett vidare perspektiv där forskaren exempelvis gör tolkningarutifrån olika samhälleliga maktfigurationer.
47
Silva, Jeany Ara?jo Mendes da. "O processo de estrutura??o interna de segmentos t?picos m?nimos em aulas para o ensino m?dio." PROGRAMA DE P?S-GRADUA??O EM ESTUDOS DA LINGUAGEM, 2016. https://repositorio.ufrn.br/jspui/handle/123456789/22550.
Full textAbstract:
Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2017-04-03T19:16:36Z
No. of bitstreams: 1
JeanyAraujoMendesDaSilva_DISSERT.pdf: 8639285 bytes, checksum: 04582afa34b412438a38094bc21a9541 (MD5)Approved for entry into archive by Arlan Eloi Leite Silva (eloihistoriador@yahoo.com.br) on 2017-04-04T22:15:25Z (GMT) No. of bitstreams: 1 JeanyAraujoMendesDaSilva_DISSERT.pdf: 8639285 bytes, checksum: 04582afa34b412438a38094bc21a9541 (MD5)
Made available in DSpace on 2017-04-04T22:15:25Z (GMT). No. of bitstreams: 1 JeanyAraujoMendesDaSilva_DISSERT.pdf: 8639285 bytes, checksum: 04582afa34b412438a38094bc21a9541 (MD5) Previous issue date: 2016-02-29
Esta disserta??o insere-se no ?mbito da Perspectiva Textual-Interativa (JUBRAN; KOCH, 2006), que constitui uma vertente da Lingu?stica Textual. A pesquisa tem como prop?sito investigar a estrutura??o dos Segmentos T?picos M?nimos (SegTs m?nimos) em aulas para o ensino m?dio, bem como descrever esse processo. A unidade de an?lise tomada para a consecu??o desses objetivos ? o t?pico discursivo, uma vez que essa categoria permite operar no recorte de segmentos t?picos como tamb?m dos segmentos t?picos m?nimos. Do ponto de vista metodol?gico, o trabalho adotou o m?todo emp?rico-indutivo de an?lise, a partir de uma abordagem qualitativa. Partindo da proposta de investigar como ocorre o processo de estrutura??o interna de SegTs m?nimos (PENHAVEL, 2010) em aulas expositivas (SILVA, 2008), coletamos dados correspondentes a aulas de Biologia, de Geografia, de Hist?ria e de Portugu?s, em uma escola de Ensino M?dio da rede p?blica do estado de Pernambuco. Nessa dire??o, para realizar uma an?lise mais detalhada dos segmentos t?picos m?nimos, selecionamos uma das aulas para an?lise, por considerarmos que ? representativa dentro do conjunto das aulas expositivas. Finalmente, verificamos nas an?lises que o processo de estrutura??o dos SegTs m?nimos, particularmente da aula expositiva, tem como princ?pio geral o encadeamento sequencial de quatro unidades t?picas: Esquematiza??o inicial, Problema(quest?o), Explica??o e Ratifica??o-avalia??o. Al?m dessa, h? outras formas de estrutura??o que se realizam com tr?s, duas ou uma unidade t?pica, cujas bases permanecem no princ?pio geral de estrutura??o dos SegTs m?nimos. Assim, identificamos entre as formas mais recorrentes, SegTs organizados com base no encadeamento sequencial Quest?o-Explica??o-Avalia??o, Esquematiza??o inicial-Explica??o-Avalia??o; ou apenas Esquematiza??o inicial-Explica??o, Explica??o-Avalia??o. H? ainda SegTs estruturados t?o-somente com a unidade de Explica??o que ? a ?nica unidade t?pica de estrutura??o que ocorre em todos os SegTs.
This paper is part of the framework of the Textual-Interactive Grammar or Textual-Interactive Perspective (Jubran, KOCH, 2006), which is a branch of Textual Linguistic. The research aims to investigate the structure of the Minimum Topic segments in classes for high school, and to describe this process. The unit of analysis taken to accomplish these objectives is the discursive topic, because that category will operate in cropping topic segments as well as Minimum Topic segments. From a methodological point of view, the study adopted the empirical-inductive method of analysis from a qualitative approach. From the proposal to investigate how is the internal structuring of Minimum Topic SegTs (PENHAVEL, 2010) in expositive classes (SILVA, 2008), we collected corresponding biology, Geography, History and Portuguese classes, in a public school from Pernambuco. In this direction, to carry out a more detailed analysis of the topic segments, we selected one of the classes for analysis, because we believe that is representative in a set of classes. Finally, we noted in the analysis that the process of internal structuring of minimum SegTs, particularly the expositive classes, has as a general principle of structuring the sequential chaining four topical units: Outlining initial, Problem (question), Explanation and Ratification-assessment. In addition to this, there are other ways of structuring carried out with three, two or one topical unit but they based on the general principle of structuring of minimum SegTs. Thus, we identified among the most recurrent forms, SegTs are organized with the sequential chaining Question, Explanation, Ratification-assessment; Outlining initial, Explanation, Ratification-assessment; or just Outlining initial, Explanation, Ratification-assessment; Explanation, Ratification-assessment. There are still SegTs structured only with the Explanation unit. Furthermore, it is the only topic unit that occurs in all SegTs.
48
Halvarsson, Louise, and Kjerstin Svärdby. "NIMBY-reaktioner rörande Attefallshusen i Östersund : En kvalitativ och kvantitativ studie om berörda invånares erfarenheter och upplevelser av byggnationen." Thesis, Mittuniversitetet, Avdelningen för samhällsvetenskap, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:miun:diva-33908.
Full text
49
Carreño, Gonzalez Ivon Maritza. "Desoxigenação de Etilenoglicol sobre catalisadores de Ni, Mo e NiMo/A 'I IND. 2' 'O IND. 3'." [s.n.], 2012. http://repositorio.unicamp.br/jspui/handle/REPOSIP/266784.
Full textAbstract:
Orientador: Gustavo Paim ValençaDissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Química
Made available in DSpace on 2018-08-20T14:34:27Z (GMT). No. of bitstreams: 1 CarrenoGonzalez_IvonMaritza_M.pdf: 7134932 bytes, checksum: acf616348074122010d96651cd1436a7 (MD5) Previous issue date: 2012
Resumo: Sólidos monometálicos e bimetálicos de níquel e molibdênio suportado em alumina foram impregnados com 3% de teor metálico variando a ordem de impregnação até umidade incipiente, os quais podem ter efeitos significativos sobre o seu desempenho. As amostras foram calcinadas e caracterizadas, e utilizadas na desoxigenação catalítica do etilenoglicol. Esses materiais apresentaram áreas superficiais entre 177 e 160 m²g-¹. Os difratogramas de raios X de todos os sólidos obtidos exibiram a fase 'gama'-alumina e mediante o detector de energia dispersiva de raios X se confirmou a presença dos metais nos sólidos. Os testes catalíticos foram realizados em um reator de leito fixo, nas temperaturas de 533, 553, 573, 593 e 613 K e pressões de vapor do etilenoglicol de 13148 e 8662 Pa; a massa dos sólidos utilizada foi 35mg. Os compostos identificados foram a água, hidrogênio, metano, etano, éter etílico, acetaldeído e etanol. Foi realizado o balanço de mols do sistema e os valores dos graus de avanço de cada reação. Os cálculos dos efeitos difusivos demonstraram que as transferências de massa interna e externa e a transferência de energia externa não foram limitantes nas reações. Seis reações principais foram observadas e mediante os graus de avanço permitiu a avaliação de cada reação na formação dos determinados produtos de reação. Baseados na literatura se utilizaram expressões da taxa de reação para as reações propostas neste estudo. A seletividade aos produtos e conversão na desoxigenação do etilenoglicol apresentou mudanças baseadas na forma da ordem de impregnação dos sólidos. Igualmente foram realizados os cálculos das energias de ativação, fatores préexponenciais e as constantes da taxa
Abstract: Monometallic and bimetallic catalysts of nickel and molybdenum supported on alumina were prepared by incipient wetness with 3% metal content by varying the order of impregnation. The samples were calcined, characterized and used in the catalytic deoxygenation of ethylene glycol. The surface areas of the solids varied between 177 and 160 m²g-¹. The X-ray diffraction patterns of all solids had only 'gamma'-alumina phase. Analysis by X-ray dispersive energy confirmed the presence of both Ni and Mo in the solids. The catalytic tests were carried out in a fixed bed reactor and the reaction temperatures varied between 533 and 613 K while the vapor pressures of ethylene glycol were 8662 and 13148 Pa. The mass of the catalyst was kept constant at ca. 35mg. The identified compounds were water, hydrogen, methane, ethane, diethyl ether, acetaldehyde and ethanol. A mass balance for the reaction system was carried out and the extent of reaction was calculated for each reaction. The effect of diffusion was calculated and the results suggest that no internal or external mass transfer and external energy transfer were limiting in the reaction conditions used in this work. Rate expressions from the literature were used in this work. The results of conversion and selectivity to products in the deoxygenation of ethylene glycol reaction suggest that changes in the order of impregnation of the solid are important
Mestrado
Desenvolvimento de Processos Químicos
Mestre em Engenharia Química
50
Pezzi, Alexandra Cristina Giacomet. "Dignidade da pessoa humana, m?nimo existencial e limites ? tributa??o no estado democr?tico de direito." Pontif?cia Universidade Cat?lica do Rio Grande do Sul, 2006. http://tede2.pucrs.br/tede2/handle/tede/4242.
Full textAbstract:
Made available in DSpace on 2015-04-14T14:34:04Z (GMT). No. of bitstreams: 1
389063.pdf: 987164 bytes, checksum: 1f6053a96b1047cfe0f4953907798a82 (MD5)
Previous issue date: 2006-12-12O crescimento da despesa p?blica ? um fato inevit?vel. Para garantir a sustenta??o da estrutura estatal e a presta??o de servi?os p?blicos, os governantes se valem, essencialmente, da tributa??o. Ocorre que, por toda a parte, verifica-se o agravamento demasiado da carga tribut?ria. Especialmente nos pa?ses perif?ricos, ? bastante preocupante a absor??o de percentuais expressivos da renda individual ou empresarial pela via da tributa??o, dado o risco de comprometimento do pr?prio desenvolvimento s?cio-econ?mico. Essa tend?ncia tem suscitado, mais na doutrina do que na jurisprud?ncia, o debate sobre a necessidade do estabelecimento de limites mais expl?citos ao poder de tributar. Esses limites, inerentes ao Estado Democr?tico de Direito, j? constam em diversas regras e princ?pios constitucionais. Destacam-se, no presente estudo, os princ?pios da igualdade, da dignidade da pessoa humana, da veda??o de confisco e da capacidade contributiva. Em que pese o status constitucional das limita??es, sua for?a vinculante, com rela??o aos Poderes de Estado, n?o tem se mostrado eficaz. Come?a a ficar evidente que n?o basta priorizar a arrecada??o, a qualquer pre?o. Na rela??o jur?dico-tribut?ria, ambos os sujeitos Estado e cidad?o merecem considera??o. Imp?e-se, de forma premente, o planejamento da a??o governamental, em termos t?cnicos, al?m de um controle mais efetivo das pol?ticas e dos gastos p?blicos. Com isso, poderiam ser atenuados os n?veis de incid?ncia tribut?ria sobre os membros da comunidade, com melhores resultados. Todos os cidad?os devem ter assegurado pelo Estado um m?nimo existencial, que lhes permita viver em condi??es de dignidade e de se desenvolver, por meio da inclus?o social em condi??es igualit?rias. Cada vez mais ganha relevo a figura do cidad?o-contribuinte, titular de direitos fundamentais que n?o se esgotam no cat?logo do artigo 5? da Constitui??o Federal. Nesse sentido, v?rios s?o os Estados a editar Estatutos que lhe confiram tutela espec?fica. A mudan?a de foco tende ? promo??o da justi?a fiscal, obtida pelo ajuste do tributo ao potencial de riqueza de cada um, para culminar na justi?a social, onde a nota ? o car?ter redistributivo da renda, por meio do emprego adequado dos recursos advindos da tributa??o.