Teses / dissertações: "ICR studies"

1

Fox, Brigitte S. "FT-ICR studies of solvated ions". [S.l.] : [s.n.], 2002. http://deposit.ddb.de/cgi-bin/dokserv?idn=964184176.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

2

Balteanu, Iulia. "FT-ICR studies of transition metal cluster ions". [S.l. : s.n.], 2005. http://deposit.ddb.de/cgi-bin/dokserv?idn=974430919.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

3

Campbell, Sherrie A. Beauchamp Jesse L. "FT-ICR studies of the structures, energetics and reaction dynamics of biological molecules in the gas phase /". Diss., Pasadena, Calif. : California Institute of Technology, 1995. http://resolver.caltech.edu/CaltechETD:etd-05122005-160230.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

4

Balaj, Ovidiu-Petru. "The chemistry of solvated ions studied by FT-ICR mass spectrometry". [S.l. : s.n.], 2005. http://deposit.ddb.de/cgi-bin/dokserv?idn=974431192.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

5

Drinkwater, Mark Roland. "Radar altimetric studies of polar ice". Thesis, University of Cambridge, 1987. https://www.repository.cam.ac.uk/handle/1810/268053.

Texto completo da fonte

Resumo:

Active microwave sensors are known to provide valuable information regarding snow and ice surfaces in the polar regions, where darkness and cloud cover prevail. Here, data collected in the Arctic by a Ku-band microwave radar altimeter, designed and constructed in the UK, are analysed. The two main components of this study comprise data gathered in the East Greenland Sea marginal ice zone and over two Svalbard ice caps. A systematic treatment is made of the electromagnetic properties of snow and ice at 13.81 GHz, and the differences between various polar surface media are highlighted. Theoretical and empirical models are presented which enable calculation of the relevant dielectric and scattering properties of snow and ice layers. Parametric studies are undertaken to give insight into the range of scattering conditions likely to be encountered by a radar altimeter in the regions investigated. Examples of altimetric data and results of their analysis are presented, demonstrating the effects of different ice types and terrain upon incident altimeter pulses. Waveforms are characterised by their shape, and certain forms are linked with particular physical properties of the surface. To this a variety of supporting information is added in order to verify and validate interpretations of these results. Algorithms are proposed which enable geophysical information to be derived from altimetric data.

Estilos ABNT, Harvard, Vancouver, APA, etc.

6

Holtom, Philip Derek. "Irradiation studies of astrophysical ice analogues". Thesis, University College London (University of London), 2005. http://discovery.ucl.ac.uk/1444790/.

Texto completo da fonte

Resumo:

In this thesis the formation of molecular species in cold icy mantles, typical of those in the interstellar medium (ISM) has been studied. The construction of an ultra high vacuum system for the formation and containment of these astrophysical ice analogues is described. The method of preparation of these ices is detailed and analysis methodologies are discussed. VUV spectra of molecular ices (e.g. SO2, CH3NH2, OCS) measured on the UV1 beam line of the Astrid Synchrotron facility at the University of Aarhus in Denmark, are presented. Molecular synthesis (e.g. CO3, CO, H2CO3) induced by ion irradiated CO2/H 2O ices using facilities at Queens University Belfast are also reported. In particular this thesis focuses on the irradiation studies of the binary ice mixture of Methylamine (CH3NH2) and Carbon Dioxide (CO2). The results of irradiation of CH3NH2 and CO2 binary ice mixtures by ultraviolet photons, and electrons are presented. The apparent production of the amino acid - glycine - in our irradiated samples is discussed together with possible production processes.

Estilos ABNT, Harvard, Vancouver, APA, etc.

7

Davies, Edward. "Neutron diffraction studies of amorphous ice and amorphous ice co-deposits". Thesis, University of Kent, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.305366.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

8

Liu, Kit-ying, e 廖潔凝. "ICT supported collaborative learning of business studies". Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2004. http://hub.hku.hk/bib/B29959895.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

9

Rowley, Linda Kathleen. "Fundamental studies of interferences in ICP-MS". Thesis, University of Plymouth, 2000. http://hdl.handle.net/10026.1/1918.

Texto completo da fonte

Resumo:

Methods of temperature measurement by mass spectrometry have been critically reviewed. It was concluded that the most appropriate method depended critically on the availability of fundamental data, hence a database of fundamental spectroscopic constants, for diatomic ions which cause interferences in ICP-MS, was compiled. The equilibration temperature, calculated using the different methods and using various diatomic ions as the thermometric probes, was between c.a. 400 - 10,000 K in the central channel, and between c.a. 600 - 16,000 K when the plasma was moved 1.8 mm off-centre. The wide range in temperature reflected the range of temperature measurement methods and uncertainty in the fundamental data. Optical studies using a fibre optic connected to a monochromator were performed in order to investigate the presence of interferences both in the plasma and the interface region of the ICP-MS, and the influence of a shielded torch on these interferences. It was possible to determine the presence of some species in the plasma, such as the strongly bound metal oxides, however, no species other than OH were detected in the interface region of the ICP-MS. The OH rotational temperature within the interface region of the ICP-MS was calculated to be between 2,000 - 4,000 K. The effect of sampling depth, operating power, radial position and solvent loading, with and without the shielded torch, on the dissociation temperature of a variety of polyatomic interferences was investigated. These calculated temperatures were then used to elucidate the site of formation for different polyatomic interferences. Results confirmed that strongly bound ions such as MO+ were formed in the plasma, whereas weakly bound ions such as ArO+ were formed in the interface region due to gross deviation of the calculated temperatures from those expected for a system in thermal equilibrium.

Estilos ABNT, Harvard, Vancouver, APA, etc.

10

Puletti, F. "Laboratory spectroscopic studies of interstellar ice analogues". Thesis, University College London (University of London), 2014. http://discovery.ucl.ac.uk/1430173/.

Texto completo da fonte

Resumo:

In recent years, the molecular chemistry in interstellar environments has proven to be far more complex than was initially expected. We live in a molecular universe that is rich with molecules formed both in the gas phase and on the surface of interstellar icy dust grains. Two important classes of interstellar molecules are sulphur-bearing species and complex organic molecules, i.e., molecules containing carbon and containing more than 6 atoms. The former are relevant because of their potential utility in establishing the age of star forming regions. The latter are important because they are excellent probes of the physical conditions of the regions where they reside. Moreover, complex organic molecules are thought to be astrobiologically relevant. To properly understand the chemical networks leading to the formation of astrochemical species, to date more than 170 have been conclusively identified, the integration of laboratory experimental data with existing computational models is paramount. Laboratory studies can be conducted in the gas phase or, as is the case for this work, in the solid state. Studies of the processing of ices, by thermal energy or by ultraviolet radiation, are particularly important in understanding solid phase chemistry in the interstellar medium. In this thesis, the results of laboratory experiments aiming to mimic the physical/chemical reactions of ices on interstellar dust grains are presented. Specifically, temperature programmed desorption and reflection absorption infrared studies were carried out in an ultra high vacuum setup on H2S (chapter 3) and on the C2H4O2 isomer family (chapters 4 and 5) formed of acetic acid (CH3COOH), glycolaldehyde (HOCH2CHO) and methyl formate (HCOOCH3). Ultraviolet irradiation studies of glycolaldehyde have also been performed, and the results of these are presented in chapter 6. In order to put the laboratory results into an astrophysical context, computer simulations of the desorption of these species from interstellar grains were conducted. The results for H2S are presented in chapter 3. Those for acetic acid, glycolaldehyde and methyl formate are presented in chapter 4.

Estilos ABNT, Harvard, Vancouver, APA, etc.

11

Neumaier, Marco. "FT-ICR-MS Studien zur Reaktivität kationischer Münzmetallcluster und zur elektronischen Stabilität von Fullerenanionen". Karlsruhe Forschungszentrum Karlsruhe, 2007. http://d-nb.info/989564908/34.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

12

Neumaier, Marco. "FT-ICR-MS Studien zur Reaktivität kationischer Münzmetallcluster und zur elektronischen Stabilität von Fullerenanionen". [S.l. : s.n.], 2008. http://digbib.ubka.uni-karlsruhe.de/volltexte/1000007410.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

13

Bacon, Neil J. "Laboratory studies of the growth, sublimation, and light-scattering properties of single levitated ice particles /". Thesis, Connect to this title online; UW restricted, 2001. http://hdl.handle.net/1773/9735.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

14

Blakey, David Mark. "Structural studies of vapour-deposited amorphous-ice and argon/amorphous-ice systems by neutron diffraction". Thesis, University of Kent, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.240416.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

15

Staykova, Doroteya Kancheva. "Kinetic studies of methane-hydrate formation from ice Ih". Doctoral thesis, [S.l.] : [s.n.], 2004. http://deposit.ddb.de/cgi-bin/dokserv?idn=974034878.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

16

Flood, R. V. "Resonance enhanced multiphoton ionization studies of I2 and IBr". Thesis, University of Edinburgh, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.650978.

Texto completo da fonte

Resumo:

The resonance enhanced multiphoton ionization (REMPI) spectra of I₂ and IBr have been recorded at room temperature in a static cell and in a supersonic-jet (circa. 20K). The results of both sets of data provide an interesting contrast between two similar, yet distinct species. The room temperature REMPI spectrum of I₂ has been recorded in the region 48000-75300cm^-1 using both linearly and circularly polarized light. Rydberg states (ns) up to n = 11, based on the [3/2]_g ionic core, and up to n = 8 based on the [1/2]_g ionic core, have been observed together with three 5d states based on each core. Of these, twelve states have been observed for the first time and six other states have been reassigned. Assignments have been made by comparing the observed molecular quantum defects with those of atomic iodine, by using band contour analysis and by measurement of polarization ratios. Polarization ratios which are widely different from those expected have been observed for some systems. Preliminary jet-cooled REMPI spectra revealed that some Rydberg states are homogeneously perturbed by high vibrational levels of one or more ion-pair states from the first ion-pair cluster. The REMPI spectrum of IBr has been recorded in the region 62500-55500cm^-1. In contrast to the I₂ (and BR₂) REMPI spectra, where Rydberg transitions dominate, strong transition to ion-pair states dominate the spectrum of the interhalogen IBr (and ICI). Pronounced resonance structure caused by coupling between the b's Rydberg state, observed for the first time, and the ion-pair states has been observed.

Estilos ABNT, Harvard, Vancouver, APA, etc.

17

Ford, Michael John. "Fundamental studies of mixed gas plasmas in ICP-MS". Thesis, University of Plymouth, 1993. http://hdl.handle.net/10026.1/1941.

Texto completo da fonte

Resumo:

Inductively coupled plasma - mass spectrometry is widely accepted as the leading technique for trace element analysis. It suffers however, from a range of interferences both spectral and non - spectral which limit the range of analytes and substrates which may be successfully analyzed. This study has investigated the use of mixed gas plasmas as a means of reducing or removing these interference effects. In addition the use of mixed gas plasmas for sensitivity enhancement has been assessed using both wet and dry sample introduction systems. Simplex optimization procedures have been used throughout. The addition of nitrogen to all three argon gas flows of the ICP was evaluated, and the instrumental operating conditions were optimized to allow for the maximum removal of the ArCl+ interference on As and Se. The addition of nitrogen to the nebulizer gas was particularly effective in the removal of the ArCl+. The use of nitrogen addition also facilitated the determination of arsenic in samples where it was previously found to be impossible. The addition of methane was also applied to all three gas flows of the ICP, however, in this case only the addition to the nebulizer gas was successful in removing interferences. These included ArO+, ClO+ and CeO+ in addition to ArCl+ . Detection limits, recoveries and CRM analysis were all improved by the use of methane addition when compared to nitrogen addition or standard argon plasmas. Hydrogen addition was applied solely to the nebulizer gas and found to significantly increase the magnitude of the interferences from argon based polyatomic ions, whilst reducing those from metal oxides. The addition of hydrogen was useful in reducing MO+ interferences, but the removal of other interferences proved unsuccessful. The addition of ethene to the nebulizer gas has been used to remove many of the polyatomic interferences encountered in ICP-MS, including those based on Na, S and P. Ethene addition was as effective as, and usually better than, the addition of both methane and nitrogen. Detection limits, recoveries, calibrations and CRM analysis were all improved by its use. The use of ethene addition has lead to improvement in the determination of As, Cu, Fe, Gd, Ni, Se, and V in the presence of the relevant interference precursors. Most importantly it has been shown that a whole range of interferences can be reduced simultaneously with the addition of ethene. The plasma operating parameters and ion optics settings of a commercial ICP-MS instrument were optimized to yield maximum SBRs for elements across the mass range. It was shown that simple manual tuning of the instrument did not effect the SBRs, when compared to the simplex optimized conditions. Finally it was shown that the addition of molecular gases to the ICP, did not result in any significant improvements in sensitivity, when compared to the all argon system. Finally it has been shown that the addition of a relatively small amount of hydrogen to the nebulizer gas can lead to an enhancement in the signal obtained using laser ablation sampling. This enhancement was greatest for low mass elements and had no effect on the heavy mass element signal.

Estilos ABNT, Harvard, Vancouver, APA, etc.

18

McNeill, Vivian Faye 1978. "Studies of heterogeneous ice chemistry relevant to the atmosphere". Thesis, Massachusetts Institute of Technology, 2005. http://hdl.handle.net/1721.1/28841.

Texto completo da fonte

Resumo:

Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Chemical Engineering, 2005.
Includes bibliographical references.
(cont.) HCl-induced QLL formation at stratospheric conditions. It appears that the real part of the refractive index of the QLL formed via exposure to gas-phase HCl is closer. to that of liquid water or aqueous HCI solution than to that of ice. We estimate the thickness of the QLL in our experiments to be on the order of 100 nm. We found using the flow tube-CIMS technique that the presence of the QLL enhances the chlorine-activation reaction of HC1 with ClONO₂. The presence of the QLL also enhances CH₃COOH adsorption. We find that the solubilities of HC1 and CH₃COOH in the QLL are intermediate between the solubilities of each species in liquid H20 and those in ice. In a flow-tube CIMS study of HCI adsorption on different types of ice surface, we found that HCI adsorption on polycrystalline ice films typically used in laboratory studies consists of two modes: one relatively strong mode leading to irreversible adsorption, and one relatively weak binding mode leading to reversible adsorption. We have indirect experimental evidence that these two modes of adsorption correspond to adsorption to sites at crystal faces and those at grain boundaries, but there is not enough information to enable us to conclusively assign each adsorption mode to a type of site. We also found indirect evidence that HCI hexahydrate formation on ice at conditions relevant to the polar stratosphere is a process involving hydrate nucleation and propagation on the crystal surface, rather than one originating in grain boundaries, as has been suggested for ice formed at lower temperatures.
Characterization of the interaction of hydrogen chloride (HCl) with polar stratospheric cloud (PSC) ice particles is essential to understanding the processes responsible for ozone depletion. The interaction of HCI with ice was studied between -87⁰C and -30⁰C using the complementary approach of a) ellipsometry to monitor the ice surface with chemical ionization mass spectrometry (CIMS) detection of the gas phase, and b) flow tube experiments with CIMS detection. The flow tube-CIMS technique was also used to study the chlorine activation reaction of chlorine nitrate (ClONO₂) and HCl on ice, the co-adsorption of acetic acid (CH₃COOH) and HCI on ice, and the adsorption of CFC-12 (CC1₂F₂) on ice. CH₃COOH and CC1₂F₂ were employed as nonreactive probe molecules to provide information about the state of the ice surface in the HCl-ice system. The ellipsometer-CIMS studies were performed on single-crystalline ice samples, and the flow tube-CIMS studies were performed on smooth and vapor-deposited polycrystalline ice films and on zone-refined ice cylinders. A numerical modeling framework is presented for the interpretation of the flow tube-CIMS studies. A disordered surface region, or quasi-liquid layer (QLL), was detected on bare ice using ellipsometry down to -30 ⁰C. We also found using ellipsometry that trace amounts of HCl induce QLL formation on the ice surface in the vicinity of the solid-liquid equilibrium line on the HCl-ice phase diagram, including conditions encountered in the polar stratosphere during PSC events. These results are supported by the results of the flow tube-CIMS studies of the reaction of ClONO₂ and HCl on ice, CH₃COOH/HC1 co-adsorption on ice, and HCl adsorption on ice. This is the first report of direct experimental evidence of
by Vivian Faye McNeill.
Ph.D.

Estilos ABNT, Harvard, Vancouver, APA, etc.

19

Hernant, Erica. "Krisinducerad policyförändring : En studie om Livsmedelverkets hantering av upprepade livsmedelsfusk i ICA-butiker". Thesis, Försvarshögskolan, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:fhs:diva-6589.

Texto completo da fonte

Resumo:

Syftet med denna studie är att undersöka hur kriser påverkar policyförändring. För att undersöka detta ska Livsmedelsverkets hantering av ett fall av upprepade livsmedelsfusk på ICA-butiker runt om i Sverige användas. Fallet ska analyseras ur en teori kallad The Multiple Streams Framework utvecklad av Kingdon som förklarar att förändring kräver en rubbning i en av tre strömmar kallade problem-, politik- och policyström. Om en rubbning sker i någon av dessa strömmar kan frågor som kräver förändring bli kända för beslutsfattare som sedan kan genomföra förändringen. Studiens analys visar att hur en händelse eller ett problem tolkas och upplevs har betydelse för hur det sedan hanteras och hur förändringsprocessen ser ut. Livsmedelsverkets tolkning av fallet var sådan att det endast berörde ICA och deras varumärke. Detta ledde till att inga aktioner ut över det vanliga vidtogs och inga förändringar ägde rum. Studiens slutsatser ger ett resultat som tyder på att problemströmmen – huruvida man tolkar en händelse som ett problem som kräver en lösning eller ej – spelar en större roll i förändringsprocessen än de andra strömmarna. Hur man tolkar en händelse har inspelningar på hur man uppfattar samhällets stämning – politikströmmen – och hur den interna debatten förs – policyströmmen. Detta vore intressant och undersöka vidare i fortsatt forskning.

Estilos ABNT, Harvard, Vancouver, APA, etc.

20

Ford, Martyn David. "'Ich screibe, indem ich gleichzeitig Regie fuÌˆhre' : a study of the visual dimensions and stage effectiveness of Friedrich DuÌˆrrenmatt's dramatic works". Thesis, University of Bristol, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.274644.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

21

Jakobsson, Anton. "Energibesparing i industrilokal : En IDA ICE studie". Thesis, Umeå universitet, Institutionen för tillämpad fysik och elektronik, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-128108.

Texto completo da fonte

Resumo:

Energieffektivisering blir en allt viktigare åtgärd på äldre fastigheter i takt med att kostnaden för energi stiger. Att energieffektivisera kan beskrivas som att uppnå samma resultat med mindre energiåtgång, för brukaren resulterar detta i lägre kostnader lagda på inköp av energi och för samhället resulterar detta i en minskad belastning på miljö och klimat. I mitt examensarbete som du håller i din hand har jag undersökt en industrilokal belägen på Teg i Umeå där jag med simuleringsprogrammet IDA ICE simulerat olika energieffektiviseringsåtgärder och hur de skulle påverka byggnadens förbrukning av energi. Åtgärderna som simulerats är: Tilläggsisolering av väggar och tak, byte till FTX-system, byte av fönster samt byte av dörrar och garageportar till mer välisolerade alternativ. Arbetet består till stor del av litteraturstudie och simuleringsprogrammet där en modell av huset har konstruerats för att efterlikna dess verkliga motsvarighet till så stor grad som möjligt. Efter detta har åtgärderna tillämpats och sedan simulerats för att till sist jämföras med referenshusets simulering. Resultatet visar att samtliga åtgärder skulle sänka energiförbrukningen av byggnaden i någon mån. Den största besparingen på 49,3 % skulle fås om man byter ventilationssystem medan den minsta besparingen, 0,7 %, fick man genom att byta fönster.
Reducing the energy consumption in older buildings is growing to be more important by each passing day as the cost of energy rises and political strides are made to limit the amount of energy used for various purposes. To optimize the use of energy in a building can be described as getting the same end result with a lower amount of spent energy, for the user this is an economic victory as he doesn’t have to spend as much money on heating his building while society gains a reduced impact on the environment and climate. In this thesis that you hold in your hands I have investigated an industrial building located in Teg, Umeå where I utilized the simulation software IDA ICE to simulate the buildings energy usage and the effects of various energy optimization/saving measures if implemented. The measures simulated are: Additional insulation for walls and roof, the switch to a ventilation system with a heat recovery unit, switching to well insulated windows, and switching the doors and garage doors to well insulated units. The work has mostly been done through studies of literature and IDA ICE where a model of the building has been constructed according to the specifications of the real world counterpart. The results from the various simulations are then compared with each other and the reference case. The results showed that all energy saving measures would result in a lowered use of energy. The biggest saving was gained from the changing out the ventilation system which resulted in a 49,3 % reduction whilst changing windows only resulted in a 0,7 % reduction.

Estilos ABNT, Harvard, Vancouver, APA, etc.

22

Kroupa, Filip. "Řízení změny a související vliv na oblast IS/ICT". Master's thesis, Vysoká škola ekonomická v Praze, 2012. http://www.nusl.cz/ntk/nusl-165272.

Texto completo da fonte

Resumo:

The topic of this thesis is change management. A summary of the topic is made in the first part of this thesis so that a reader has the theoretical background to read further. In the second part, the author describes five most important change management methods. These methods are described, analyzed and compared to one another. Five hypotheses about the most influential factors to the outcome of a change project were created out of the analysis. These hypotheses cover the entire span of a typical change project and are tested in the practical part of this thesis. The practical part of the thesis relies on a thorough case studies analysis and interviews. By analyzing the case studies and the interviews, the author was able to judge the validity of set hypotheses and create a set of recommendations for future change projects. These recommendations are based on many real situations and therefore are valuable for future reference. The role of information technology in change management is also emphasized at the end of the thesis.

Estilos ABNT, Harvard, Vancouver, APA, etc.

23

Seaborn, Pamela A. "Coaches' instruction provided to female ice hockey players during games". Thesis, University of Ottawa (Canada), 1996. http://hdl.handle.net/10393/9484.

Texto completo da fonte

Resumo:

The interaction between coaches and their athletes has been investigated by researchers in sport pedagogy over the last 20 years (Pieron, 1994). The majority of these studies have used systematic observation techniques to gain insight into the behavior of coaches during games and/or practices. Although studies on coaches' behaviors have provided a portrait of how coaches intervene (e.g., Trudel & Cote, 1994), information on the subject matter being taught by coaches is relatively new. The importance of including the subject matter in the study of teaching was underlined by Shulman (1986). The purpose of the present study was to investigate the content of coaches' instruction provided to female ice hockey players (12-15 yrs.) during games. More specifically, the questions to be answered were: (a) What was the content of instruction? (b) When was the instruction given? and (c) How was the instruction communicated to the player(s)? A unique coding system was developed in order to answer these questions. Although the results revealed differences between cases, and even variability between games within the same case, many similarities emerged between coaches. The coaches in the present study referred to emphasize team tactics, over individual tactics, individual techniques, and rules. Many of the interventions by the coaches were short duration prompts, communicated while the play was in progress. The relatively low percentage of specific information given to players during games indicates that the coaches did not fully utilise opportunities arising in games to instruct players.

Estilos ABNT, Harvard, Vancouver, APA, etc.

24

Bachmann, Fabienne. "Soll ich - Soll ich nicht? : eine qualitative Studie zum Thema Führungsdilemmata und Persönlichkeit /". Zürich, 2004. http://www.zhaw.ch/fileadmin/user_upload/psychologie/Downloads/Bibliothek/Arbeiten/D/d1792.pdf.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

25

Coue, Annie. "Synthetic studies related to caspase inhibitors". Thesis, University of Hull, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.342959.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

26

Greenley, Katherine R. "Electron spin resonance studies of food systems". Thesis, University of Surrey, 2001. http://epubs.surrey.ac.uk/843041/.

Texto completo da fonte

Resumo:

ESR has been used to study multi-phase food systems, including ice cream and chocolate, using both spin probes and spin labels. Chemical and physical methodologies were developed and applied to study the behaviour of 1,1,3,3-tetramethylisoindolin-2-yloxyl (TMIO), the 5-pentyl derivative (PTMIO) and the water-soluble 5-sulphonate (NaTMIOS) spin probes in hydrophilic and hydrophobic phases over a range of temperatures. Linewidths and hyperfine coupling constants (aN) were derived using fitting and simulating computer software, from which rotational correlation times (tauc) and enthalpies of activation of molecular rotation were calculated. These give an indication of the local environment of the probe. In the hydrophilic phase of ice cream there was a sharp reduction in probe mobility at -18°C, which did not occur in the hydrophobic phase. In chocolate, an essentially hydrophobic system, no sudden changes in mobility were detected although at around 60°C there was a change in the enthalpy of activation. Spectral deconvolution techniques enabled the simultaneous study of NaTMIOS and TMIO in the hydrophilic and hydrophobic phases of ice cream and enabled the study of TMIO spectra in the presence of the underlying spectrum of the radical present in chocolate. Guar gum and xanthan gum are used as stabilisers in ice cream and were spin-labelled using 5-carboxy-TMIO (CTMIO) and 5-amino-TEMPO respectively. The ESR spectra showed that the mobilities of the nitroxide moieties were comparable with the free spin probes. The addition of the gums to a sucrose solution, a model hydrophilic system, had no appreciable effect on the mobility of the NaTMIOS spin probe.

Estilos ABNT, Harvard, Vancouver, APA, etc.

27

Zwetzschke, Jana. ""...ich bin sicher, dass ich ihn lieben lerne..." : Studien zur Bach-Rezeption in Russland /". Hildesheim : G. Olms, 2008. http://catalogue.bnf.fr/ark:/12148/cb41430472w.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

28

Zwetzschke, Jana. ""... ich bin sicher, dass ich ihn lieben lerne ..." Studien zur Bach-Rezeption in Russland". Hildesheim Zürich New York, NY Olms, 2007. http://d-nb.info/991605640/04.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

29

Bakirdere, Sezgin. "Speciation Studies Using Hplc-icp-ms And Hplc-es-ms". Phd thesis, METU, 2009. http://etd.lib.metu.edu.tr/upload/3/12611391/index.pdf.

Texto completo da fonte

Resumo:

Knowledge about selenium content of foods containing selenium species is very important in terms of both nutrition and toxicity. Bioavailability of selenium species for human body is different from each other. Hence, speciation of selenium is more important than total selenium determination. In the selenium speciation study, chicken breast samples, selenium supplement tablets and egg samples were analyzed for their selenium contents. In chicken breast study, chickens were randomly categorized into three groups including the control group (25 chickens), inorganic selenium fed group (25 chickens) and organic selenium fed group (25 chickens). After the optimization of all the analytical parameters used throughout the study, selenomethionine, selenocystine, Se(IV) and Se(VI) were determined using Cation Exchange-HPLC-ICP-MS system. In selenium supplement tablet study, anion and cation exchange chromatographies were used to determine selenium species. Arsenic is known as toxic element, and toxicity of inorganic arsenic species, As(III) and As(V), is much higher than organic arsenic species like arsenobetaine and arsenosugars. Hence, speciation of arsenic species in any matrix related with human health is very important. In the arsenic speciation study, Cation Exchange-HPLC-ICP-MS and Cation Exchange-HPLC-ES-MS systems were used to determine arsenobetaine content of DORM-2, DORM-3 and DOLT-4 as CRMs. All of the parameters in extraction, separation and detection steps were optimized. Standard addition method was applied to samples to eliminate or minimize the matrix interference. Thiols play an important role in metabolism and cellular homeostasis. Hence, determination of thiol compounds in biological matrices has been of interest by scientists. In the thiol study, Reverse Phase-HPLC-ICP-MS and Reverse Phase-HPLC-ES-MS systems were used for the separation and detection of thiols. For the thiol determination, thiols containing &ndash
S-S- bond were reduced using dithiothreitol (DTT). Reduction efficiencies for species of interest were found to be around 100%. Reduced and free thiols were derivatized before introduction on the column by p-hydroxymercuribenzoate (PHMB) and then separated from each other by using a C8 column. In the real sample measurement, yeast samples were analyzed using HPLC-ES-MS system.

Estilos ABNT, Harvard, Vancouver, APA, etc.

30

Aksnes, Vegard Øgård. "Experimental and Numerical Studies of Moored Ships in Level Ice". Doctoral thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for bygg, anlegg og transport, 2011. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-12244.

Texto completo da fonte

Resumo:

Moored ships are believed to be feasible for marine operations in ice-covered waters. A variety of ice features, such as broken ice, level ice, ridged ice and icebergs, will pose potential challenges with respect to design and operations. This thesis presents studies on the actions of level ice on moored ships and the resulting vessel response. Focus was put on both analysing physical measurements and deriving suitable numerical models. The thesis is thus articulated around three parts: analysis of ice failure modes, vessel response and mooring forces from model tests of a concept called the Arctic Tandem O_oading Terminal; analysis of ice forces and mooring forces from model tests of a moored simplified hull; development of methodology for numerical modelling of moored ships in level ice with constant drift direction. A concept for o_oading of hydrocarbons in ice-infested waters was tested in the Large Ice Model Basin at the Hamburg Ship Model Basin (HSVA). The Arctic Tandem offloading Terminal consists of two vessels; a turret moored offloading icebreaker, and a shuttle tanker moored in tandem at the stern of the offloading icebreaker. Studies of the coupled response of both vessels to ice actions and the resulting tandem mooring forces show that the concept was stable in yaw when the ice drift direction changed slowly in level ice. The response of the offloading icebreaker moored alone in level ice with variable drift direction and the corresponding ice failure modes were investigated with both slow and sudden changes of ice drift direction. The study underlines how ice actions and the ice failure modes depend on the relative angle between the ice drift direction and the vessel's heading, the hull shape and the vessel's response. The test campaign showed that with the present concept, the magnitude of the mooring forces in severe ice drift events can be comparable to those experienced in ridges. Actions from level ice with variable drift direction should therefore be considered as a possible design criterion for moored ships in certain areas. Model tests of a moored simplified hull in level ice with constant drift direction have been performed at HSVA. The hull was instrumented to measure the local ice actions on the bow, as well as the mooring forces and the surge response. The test setup enabled studies of the dynamic properties of both ice and mooring forces by independently varying the ice drift speed and the stiffness of the mooring system. Average mooring forces and local ice forces on the bow increased with the ice drift speed, except for the softest mooring system, and were highest for the soft mooring system and lowest for the stiff one at all speeds. A semi-empirical method for modelling local ice forces on the bow was developed based on observations from the model tests. Ice actions are split into actions in the vicinity of the waterline, caused by breaking of intact ice and rotation of broken ice oes, and actions below the waterline, caused by ice-hull friction. The method is probabilistic and includes speed dependence. Numerical modelling of the surge response of moored ships interacting with intact level ice with constant drift direction was performed with two different approaches for the ice actions: the ice was modelled as an elastic beam on an elastic foundation and applied on a simplified 2D hull design; the above-mentioned semi-empirical local ice force formulation was implemented and applied on a model of the offloading icebreaker. Ice forces depended on the penetration of the ship into the ice and enabled feedback effects of the surge response on the ice actions. Such effects were mainly present at low ice drift speeds and often induced large mooring forces. The local ice force formulation induced mooring forces comparable to those measured in model tests of the same hull. The author believes that the method is suited for studies of the dynamic response of moored ships in level ice with constant ice drift direction and can be extended to level ice with variable ice drift direction.

Estilos ABNT, Harvard, Vancouver, APA, etc.

31

Mazhar, Danish. "Gene ice as applied to studies of hormonally-responsive malignancy". Thesis, Imperial College London, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.435079.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

32

Hu, X. "First principles studies of water and ice on oxide surfaces". Thesis, University College London (University of London), 2010. http://discovery.ucl.ac.uk/19692/.

Texto completo da fonte

Resumo:

The interaction of water (and ice) with oxide surfaces has been studied with first principles density functional theory. To begin, an extensive series of studies on the clay mineral kaolinite (Al_2Si_2O_5(OH)_4) are reported with a view to understanding the efficacy of kaolinite as a heterogeneous ice nucleating agent. The main conclusions are: (i) water clustering is disfavoured on the kaolinite surface; (ii) a stable two dimensional ice-like water overlayer can form; (iii) water covered kaolinite is itself “hydrophobic” compared to the bare “hydrophilic” kaolinite surface; and (iv) it is shown that amphoterism (the ability to accept and donate H bonds) of the hydroxylated kaolinite surface is key to its many properties with regard to water adsorption and ice nucleation. Following the water adsorption study, the perfect basal surface of kaolinite was investigated and it (and in general the entire class of so-called 1:1 clay surfaces) is shown to be polar. Extending the water adsorption studies beyond kaolinite the interaction of water with a range of rocksalt (alkaline earth metal) oxide surfaces was examined with a view to better understanding the fundamental properties of water adsorption, dissociation, and proton transfer on oxide surfaces. These studies reveal that the water adsorption energy and the tendency to dissociate both increase as one moves down the alkaline earth series of oxides. Finally, it is observed that water on MgO(001) undergoes rapid proton transfer within clusters of just two water molecules, made possible by facile dissociation and recombination of the water molecules within the dimers. Overall, it is hoped that these studies shed new light on several fundamental aspects of the interaction of water with oxide surfaces at the molecular level.

Estilos ABNT, Harvard, Vancouver, APA, etc.

33

Jamal-Talabani, Sheelan. "Structural studies on carbohydrate binding modules and ice-binding proteins". Thesis, University of York, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.399582.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

34

Troy, Robert Francis. "Field studies of ice supersaturations in the tropical tropopause layer". Diss., Restricted to subscribing institutions, 2007. http://proquest.umi.com/pqdweb?did=1481672171&sid=1&Fmt=2&clientId=1564&RQT=309&VName=PQD.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

35

Siegert, Martin John. "Numerical modelling studies of the Svalbard-Barents Sea Ice Sheet". Thesis, University of Cambridge, 1993. https://www.repository.cam.ac.uk/handle/1810/273251.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

36

Nassar, Elias M. "Numerical and experimental studies of electromagnetic scattering from sea ice/". The Ohio State University, 1997. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487948440826275.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

37

Li, Yan. "Electrospray Fundamentals and Non-Covalent Peptide-Lipid Interactions as Studied by Fourier Transform Ion Cyclotron Reonance Mass Spectrometry". ScholarWorks@UNO, 2003. http://scholarworks.uno.edu/td/62.

Texto completo da fonte

Resumo:

A novel electrochemical probe has been designed, built, and used to characterize the distribution in solution potential within the metal capillary and Taylor cone of the electrospray (ES) device. Results show that the measured potential difference increases as the internal probe travels toward the ES capillary exit, with values rising sharply as the base of the Taylor cone is penetrated. Higher conductivity solutions exhibit potentials of higher magnitude at longer distances away from the counter electrode, but these same solutions show lower potentials near the ES capillary exit. Removal of easily oxidizable species from the solution causes the measured potential difference to have nonzero values at distances further within the capillary, and the values measured at all points are raised. The influence of the diameter of the spray tip employed for nano-electrospray mass spectrometry (nano-ES-MS) upon mass spectral charge state distributions was investigated. A detailed comparison of charge state distributions obtained for nanospray capillaries of varying diameters was undertaken while systematically varying experimental parameters such as sample flow rate, analyte concentration, solvent composition, and electrospray current. The general tendency to obtain higher charge states from narrow diameter capillaries was conserved throughout, but tips with smaller orifices were more sensitive to sample flow rate, while tips with larger orifices were more sensitive to analyte concentration and pH of the solution. Electrospray mass spectrometry (ES-MS) has been employed to study noncovalent associations between lipids and fusion peptides. Detailed binding specificities between selected phospholipids and model fusion peptides were investigated. Strong evidence has been compiled to demonstrate the importance of the initial hydrophobic interaction to the observation of lipid-peptide binding by ES-MS. Initial hydrophobic interactions in solution contributed heavily to the formation of these peptide-lipid complexes, particularly for [peptide+PC] complexes, whereas electrostatic interactions played a larger role for [peptide+PG] complexes. The influence of solution pH and degree of unsaturation of lipids upon the binding strength of [peptide+PC] complexes were also investigated. These experiments help to establish ES-MS as a viable new biotechnology tool capable of providing valuable information regarding the strength of hydrophobically driven, noncovalent interactions.

Estilos ABNT, Harvard, Vancouver, APA, etc.

38

Neumaier, Marco [Verfasser]. "FT-ICR-MS-Studien zur Reaktivität kationischer Münzmetallcluster und zur elektronischen Stabilität von Fullerenanionen / Marco Neumaier". Karlsruhe : Forschungszentrum Karlsruhe, 2008. http://d-nb.info/989564908/34.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

39

Bull, Elaine Elizabeth. "Entering the new ICE age : exploring the impact of the Information and Consultation of Employees (ICE) Regulations 2004 in medium organisations". Thesis, University of Kent, 2011. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.534334.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

40

Anders, Olsson. "Energiprestanda för småhus : Parametrisk studie i IDA ICE". Thesis, Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-85658.

Texto completo da fonte

Resumo:

Sektorn bostäder och service står för cirka fyrtio procent av Sveriges totala energianvändning. Bostadsbeståndet innefattar en stor del småhus, därmed är en reducering av energianvändningen från småhus av stor vikt för att minska klimatpåverkan från sektorn. Den största potentialen för att reducera klimatpåverkan från en byggnads livscykel är att i ett tidigt skede åtgärda och ta hänsyn till energi- och klimatfrågor vid projektering. Därmed är hög energiprestanda som mått på energieffektivitet av yttersta vikt för att projektera småhus med lägre energianvändning. Det övergripande syftet med denna studie är att bidra med kunskaper om byggnadstekniska åtgärder och val som krävs för att bygga energieffektiva småhus. Studien har utförts med en parametrisk studie i simuleringsprogrammet IDA ICE och handberäkningar för att utvärdera hur ett småhus energiprestanda påverkas av ändrade isoleringsdimensioner, reducerade köldbryggor, reducerade U-värden för fönster, olika ytterväggstyper samt geografisk placering. Resultaten av simuleringarna visar att det finns goda förutsättningar för småhusaktörer att påverka energiprestandan. Behovet av värme och den köpta energin kan reduceras genom modifieringar av klimatskalet. Simuleringarna visar att en ökning av isoleringstjockleken i ytterväggen endast innebär en marginell förbättring av husets energiprestanda när referenskonstruktionen redan är relativt välisolerad i plattan och takbjälklaget. Simuleringarna visar däremot att energiprestandan påverkas markant av köldbryggorna då olika indata har testats i IDA ICE. Felmarginalen vid handberäkning av köldbryggor är dock stor så det är problematiskt att få ett representativt värde vid beräkning av dessa utan simuleringsprogram anpassat för köldbryggor. Resultaten av simuleringarna med reducerade U-värden för fönster visade på en marginell minskning av primärenergitalet, eftersom referensbyggnadens fönster redan har relativt bra U-värden och framförallt G-värden. Samt att fönsterarean utgör en relativt låg del av byggnadens totala area. Byggnaden med träregelvägg uppvisade bäst resultat av energiprestanda jämfört med huset av massivträ- och lättregelvägg i simuleringen med olika ytterväggstyper. Detta trots en lägre total väggtjocklek. Simuleringarna med ändrad geografisk position visade på en stor variation av primärenergitalet där Kiruna fick betydligt lägre primärenergital jämfört med referensorten Ängelholm. Resultaten förklaras av att de geografiska justeringsfaktorerna helt eller delvis utjämnar skillnaden mellan klimaten. Resultaten av energisimuleringen visar också att resultaten påverkas till en stor del av den indata och antaganden som användaren av programmet tar ställning till. Exempel på detta kan vara alltifrån antalet brukare som ska förväntas använda huset, till innetemperatur, belysning och annan typ av utrustning. För fortsatta studier föreslås bland annat LCA-kalkyler för byggmaterialen och ekonomiska analyser av förändringar av klimatskärmen.
The housing and service sector accounts for about 40 percent of Sweden's total energy use. Thus, a reduction in energy use from housing construction is of great importance in order to reduce the climate impact from the sector. The greatest potential for reducing the climate impact of a building's life cycle is to address and take energy and climate issues into accountat an early stage when designing new single-family homes. Thus, high energy performance as a measure of energy efficiency for detached houses is of utmost importance for designing detached houses with lower energy use.The overall purpose of this study is to contribute knowledge about constructional technical measures and choices required to design energy-efficient detached houses. The study was conducted with a parametric study in the simulation program IDA ICE and manual calculations to evaluate how a detached house's energy performance is affected by changed insulation dimensions, reduced thermal bridges, reduced U-values for windows, different exterior wall types and geographical location.The results of the simulations show that there are good possibilities for detached house owners to influence energy performance. The need for heat and the purchased energy can be reduced through modifications of the climate shield in the house. The simulations show that an increase in the insulation thickness in the exterior wall only affects a marginal improvement of the house's energy performance when the reference structure is already relatively well insulated in the slab and the roof. However, the simulation with reduced thermal bridges has a greater impact. The simulations show that the energy performance is significantly affected by the thermal bridges as various data inputs have been tested in IDA ICE. The margin of error in manual calculations of thermal bridges are complex, so it is problematic to obtain a representative value when calculating these without simulation programs adapted for thermal bridges. The results of the simulations with reduced U-values for windows showed a marginal decrease in the energy performance, since the reference building windows already have relatively good U-values and G-values. And that the window area constitutes a relatively low part of the building's total area.The building with a wooden stud wall showed the best results of energy performance compared to the house of solid wood and light stud wall in the simulation with different exterior wall types. This despite a lower total wall thickness. The simulations with a changed geographical position showed a large variation in the primary energy result, where Kiruna received significantly lower primary energy compared with the reference location Ängelholm. The results are explained by the fact that the geographical adjustment factors completely or partially even out the difference between the climates. The results of the energy simulation also show that the results are affected to a large extent by the input data and assumptions that the user of the program decides on. Examples of this can be from the number of users who are to be expected to use the house, to indoor temperature, lighting and other types of equipment.For further studies, LCA calculations for the building materials and economic analyzes of changes in the climate shield are proposed.

Estilos ABNT, Harvard, Vancouver, APA, etc.

41

Wang, Zhaomin 1963. "A simple coupled atmosphere-ocean-sea ice-land surface-ice sheet model for climate and paleoclimate studies /". Thesis, McGill University, 1999. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=36068.

Texto completo da fonte

Resumo:

We develop a new coupled atmosphere-ocean-sea ice-land surface-ice sheet model for long-term climate change studies. This five-component model incorporates the seasonal cycle, and the three major ocean basins, the Antarctic Circumpolar Current region and the major continents are resolved. The model variables are sectorially averaged across the different ocean basins and continents.
The above coupled model (less the ice sheet component) is first used to simulate the major features of the present day climate. In a global warming (cooling) experiment, the thermohaline circulation (THC) in the North Atlantic Ocean is weakened (intensified) due to the increased (reduced) moisture transport to, and warmer (cooler) sea surface temperatures at northern high latitudes.
Secondly, the above four-component model is employed to investigate the initiation of glaciation, which is accomplished by reducing the solar radiation and increasing the planetary emissivity only in high northern latitudes. When land ice is growing, the THC in the North Atlantic Ocean is intensified, resulting in a warm subpolar North Atlantic Ocean. The intensified THC maintains a large land-ocean thermal contrast at high latitudes, which leads to enhanced land ice accumulation. We conclude that increased fresh water or massive iceberg discharge from land is responsible for a weak or collapsed THC.
Lastly, a dynamic ice sheet model is coupled to the above four-component model. Sensitivity experiments show that a smaller lateral (east-west) ice discharge rate maintains a larger ice volume and extent in our model. Also, a reduced atmospheric CO2 concentration, which is parameterized as an increased planetary emissivity, may lead to the expansion of the ice sheets and hence a larger ice volume and extent. A simple iceberg calving scheme is next introduced to investigate ice sheet-THC interactions on the millennial timescale. We find that the longer the duration of iceberg calving, the longer the time that must elapse before the next calving event can occur. Also, it is shown that the strength of the THC in the North Atlantic Ocean is very sensitive to the discharge rate of the ice sheets. This makes the simulation of the interactions between ice sheets and the THC extremely challenging.

Estilos ABNT, Harvard, Vancouver, APA, etc.

42

Wang, Zhaomin. "A simple coupled atmosphere-ocean-sea ice-land surface-ice sheet model for climate and paleoclimate studies". Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape9/PQDD_0020/NQ55391.pdf.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

43

鍾志興 e Chi-hing Caleb Chung. "Effective ways of integrating ICT into mathematics lessons". Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2002. http://hub.hku.hk/bib/B3125620X.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

44

Beck, Corey Andreu. "Theoretical Studies of Solid and Liquid Water Systems". The Ohio State University, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=osu1337969878.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

45

Laframboise, D. Luke. "Founded on Ice and Tradition : A Comparative Examination of the Development and Effectiveness of the Inuit Circumpolar and Saami Councils". Thesis, Linköpings universitet, Statsvetenskap, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-163336.

Texto completo da fonte

Resumo:

There has been a great deal of interest in the Arctic governance in recent years, but littleof the interest has been in the indigenous peoples that populate it and the political structures theyuse to make themselves heard. In this thesis, these political structures, and the peoples that formthem, are studied in a historical context in order to determine how these structures weredeveloped, how their cultures have been effected by their relationship with non-indigenousgovernments and what affect both people and structure have had in their political environment.This was done through a qualitative comparative case study between the Sami of Scandinaviaand the Inuit of northern Canada and Alaska. From this study, it was determined that the level ofrelationship between indigenous and non-indigenous governments determined the degree towhich political bodies would occur and their ability affect their political environment. Followingthis relationship each case example developed a body for their own advocacy as a result ofsudden political pressure placed upon them. Overall, this thesis determines that the developmentof institutions is not fixed, but rather contingent to past events.

Estilos ABNT, Harvard, Vancouver, APA, etc.

46

Cote, Alexander Stephen. "Ab initio studies on the structure and dynamics of H2O ice". Thesis, University of Salford, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.401985.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

47

Wright, William Archer. "Applications of passive microwave satellite data to arctic sea ice studies". Thesis, Monterey, California. Naval Postgraduate School, 1991. http://hdl.handle.net/10945/27989.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

48

Potter, J. R. "Oceanographic studies of the interaction between ice shelves and the sea". Thesis, University of Cambridge, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.355563.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

49

Xu, Jiazhe, Rong Huang e Yingchao Ji. "Private Labels in China - Case Studies of RT-Mart and ICA". Thesis, Högskolan i Borås, Akademin för textil, teknik och ekonomi, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:hb:diva-14001.

Texto completo da fonte

Resumo:

Private labels have been developing in Europe for a long time, but China is still in the primary stage. Compared with the developed countries, Chinese retail enterprises, especially supermarkets, have a lower level of their private label development. With the expansion of Chinese retail business, private labels have been adopted by more and more enterprises. However, the existing supermarkets’ private labels are not well known to Chinese consumers. The purpose of this study is to compare the different opinions regarding private labels from Chinese young consumers and Swedish young consumers towards RT-Mart and ICA respectively. Both the Chinese supermarket RT-Mart and the Swedish supermarket ICA have a large number of stores and quite a lot of influences in the local area. This study uses a case study method to study from the perspective of the consumer. This paper first introduces the background of private labels, and then analyzes the actual situation of ICA and RT-Mart. From the consumer perspective, we studied the different ideas of young consumers in two countries on their private labels. The analysis is based on young consumers of different nationalities.

Estilos ABNT, Harvard, Vancouver, APA, etc.

50

Brilot, Axel F. "Studies of Beam-Induced Movement of Single Particles in Vitrified Ice, and, Studies of Heterogeneous Ribosomal Complexes". Thesis, Brandeis University, 2014. http://pqdtopen.proquest.com/#viewpdf?dispub=3622223.

Texto completo da fonte

Resumo:

Electron cryomicroscopy (cryo-EM) techniques allow for the determination of cellular structures in three dimensions. The single-particle reconstruction (SPR) technique uses images of biological macromolecular complexes in a thin vitreous ice layer to generate three-dimensional (3D) reconstructions of them, and is capable of yielding structures of complexes ranging in size from hundreds of kilodaltons to tens of megadaltons.

Beam-induced motion (BIM) is one of the major causes of a decrease in the signal-to-noise ratio (SNR) in images obtained in electron cryomicroscopy. BIM is shown to be due to a physical doming movement of the ice sheet which can lead to translations of particles of up to several nanometers in the image plane. We show that computational correction of BIM using movie data can generate high resolution reconstructions with a fraction of the images previously required. SPR density maps also suffer from artifacts if images averaged into reconstructions represent a heterogeneous mixture. An algorithm capable of rapid classification of heterogeneous image data is presented and characterized. The algorithm is capable of similar performance as previously characterized algorithms.

The ribosome synthesizes mRNA encoded polypeptides. During its catalytic cycle, after peptidyl transfer, tRNA must move through the ribosome from the A and P sites to the P and E sites, respectively, in a process called translocation. This activity is accelerated 1000-fold by the GTPase EF-G. The structure of a transient early translocation intermediate bound with EF-G was determined using the new classification algorithm. The structure provides insight into the conformational changes that occur on the ribosome, tRNA and EF-G during translocation. Ribosomal cap-dependent initiation is a tightly regulated process directing initiation of polypeptide synthesis in eukaryotes. Internal ribosomal entry sites (IRESs) are RNA structures which allow the translation of downstream encoded elements to bypass some or all of the molecular machinery in cap-dependent initiation. The structure of the TSV IRES bound to the yeast ribosome is described. It shows that the IRES tRNA mimic is bound at the A site, and must undergo two rounds of translation prior to the formation of the first peptide bond.

Estilos ABNT, Harvard, Vancouver, APA, etc.

Teses / dissertações sobre o tema "ICR studies"

Crie uma referência precisa em APA, MLA, Chicago, Harvard, e outros estilos