Dissertations / Theses on the topic 'Bulvár'
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Soušková, Anna. "Revitalizace areálu Filmových ateliérů Zlín." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2015. http://www.nusl.cz/ntk/nusl-394021.
Full textČerneyová, Natália. "REVITALIZACE BÝVALÉHO PRŮMYSLOVÉHO ÚZEMÍ V PRAZE, VYSOČANECH." Master's thesis, Vysoké učení technické v Brně. Fakulta architektury, 2019. http://www.nusl.cz/ntk/nusl-401830.
Full textKolářová, Dana. "Bulvární fotografie." Master's thesis, Akademie múzických umění v Praze. Filmová a televizní fakulta AMU. Knihovna, 2008. http://www.nusl.cz/ntk/nusl-78094.
Full textBiliūnaitė, Inga. "Bulvių separavimo kombainuose tyrimai." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2005. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2005~D_20050609_140700-92938.
Full textBergström, Erika. "Buller i förskolans inomhusmiljö." Thesis, University of Gävle, Department of Mathematics, Natural and Computer Sciences, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-4644.
Full textSyftet med studien är att belysa buller i förskolans pedagogiska inomhusmiljö och vilken inverkan det kan ha på barnen som vistas där, samt vilka åtgärder som kan vidtas för att få en god ljudmiljö. Som metod har en enkätundersökning och intervjuer med pedagoger utförts. Dessutom har förskolans inomhusmiljö med barn och vuxna observerats. Undersökningen visar att barn, vuxna, aktiviteter och leksaker skapar en bullrig miljö. Som en följd av detta buller upplever pedagogerna att barnen bli trötta och okoncentrerade, men också livliga och högljudda. För att motverka buller har vissa åtgärder utförts i arbetssätt och miljö, men pedagogerna upplever att bristande kunskap, tid och pengar hindrar dem i vidare arbete.
Trots att det finns lagar och rekommendationer återstår det mycket att göra för att skapa en god ljudmiljö för barnens fortsatta utveckling och lärande.
Dahlström, Hannes, and Alexander Dyk-Strömberg. "Lätta väggar, högt buller." Thesis, Malmö universitet, Fakulteten för teknik och samhälle (TS), 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:mau:diva-44434.
Full textThis thesis evaluates whether walls with light-frame construction are suitable to build in areas with high sound pressure levels, allowed by Sweden’s law regarding loud traffic noise nearbuildings. Previous consensus has been that exterior walls have sufficient sound insulation,regarding sound pressure levels by the residence-façade generated from traffic noise, to achieverequired indoor sound pressure levels. Due to the ongoing urbanization in Sweden, a law haspassed that increased the allowed levels of equivalent sound pressure by a residence-façade. Therefore, it has become relevant to examine if light-frame construction façades really do have sufficient sound insulation.In the study, field measurements are made on three façade walls to determine their noise reduction properties. The values from the measurements are compared to the sound insulation capacity of software-built wall-models with the same wall constructions as the field measured walls. Both the measured and the modelled walls sound insulation is also compared parallel to insulation values for light-frame construction walls found in literature. The values of the walls sound insultation are also evaluated regarding high but occurring sound pressure levels by facades and demanded levels of sound pressure indoors. Modifications are made to the construction of one modelled wall to quantify the improvement in sound insulation of the walls derived from the investigated construction-modifications.The results conclude that the examined light-frame construction walls are indeed sufficient in the aspect of sound insulation to merely satisfy the laws. The walls sound insulation is not as unambiguously sufficient when establishing what is considered a good indoor acoustic environment, instead of only achieving minimum levels required by law.
Želvys, Dainius. "Ventiliuojamo oro pasiskirstymas bulvių sampile." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2011. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2011~D_20110602_120644-65726.
Full textHolding potatoes in a thick 5-6 m layer in the bin it is difficult to eliminate originated hot spots. To remove the source it is necessary to intensify ventilation in order to mummify defective tubers in corruption source. The aim of the research is to investigate the patterns of ventilated air distribution in potato store and distribution of air in an experimental bench. To determine air distribution in ventilated store by changing the number of distribution ducts, and to explore opportunities to intensify ventilation arising in corruption area. It was found that reducing the number of opened distribution ducts the intensity of the ventilation in the remaining opened ducts can be doubled. At the invitation of one ducts supplied 8.34 m3/s air flow. After opening all eight ducts, each duct to be supplied only 3.9 m3/s in air. The layers next to the source will be ventilated with much smaller intensity, which decreases possibility to over ventilate production while eliminating corruption source in the store bin.
Olson, Jonas. "Rivna bullar och Mexikanska pannkakor." Thesis, Malmö högskola, Institutionen för konst, kultur och kommunikation (K3), 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:mau:diva-22473.
Full textIn this essay I’ve researched workplace based knowledge and how companies can benefit from using it. The combined knowledge of a company work force is a powerful tool, and if you could tap that resource both the employees and the company can benefit. I have researched how this knowledge can be used in educating new employees and how this can empower the employees by giving them more control of their workplace. I advocate handing over more control of the factory to the employees. They work with the machines everyday, and often know the best way to run them, and therefore should be the first to be consulted when optimizing the workflow. I have done this thesis project with the Swedish company Jidoka Innovation AB which with their method set by the name HelpMe, specializes in workplace learning and optimization. My case the Santa Maria tortilla factory in the south of Sweden where I evaluated and developed Jidoka’s methods to see if this way of working could make a more efficient production process.
Tari, Wetterblad Alborz Viktor. "Lågfrekvent buller hos Vindkraftverk och Trafik." Thesis, KTH, MWL Marcus Wallenberg Laboratoriet, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-101942.
Full textMilosevic, Suncica. "Buller : Hur planeras en bullerfri stad?" Thesis, Uppsala universitet, Kulturgeografiska institutionen, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-243341.
Full textVerbylaitė, Violeta. "Bulvių veislių derlingumo ir juslinių savybių palyginimas." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2007. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2007~D_20070816_153048-90084.
Full textThe object of labour- the potatoes which has been raise up in chemistry and ecology setting in Marijampole District of Vilkaviskis in Bambinys village. The objective of labour- to compare the harvest size and quality of taste of the potatoes breeds which has been raised up in intense and chemistry setting. Method of work-the Research has been done in April-September of 2007. The seed. was germinate about 20 days at light and worm premises. The set was prepared for field experiment. In a spring the cultivate fields has been fertiled ecology set just by dung and in chemistry set just by special fertile which was balanced to potatoes. Has been observe the potatoes evolution and vegetation. The research has been done by the outdoor experiment. At the end of vegetation the potatoes been mined and weight. Was maked the weigth of one potatoes scrub (g) and counted unite of scrubs. From every breed was mined 10 unit of scrubs. The tubers weight determined by the weight method. In February of 2007 to every potatoes strains has been done savour. The tubers which has been raised up in ecology and intense setting been boiled on the same conditions: the each potatoes breed had boiled in separate pots with skin and without salt. The boil duration was about half an hour. The method of savour been created and apllyed by the LZI Selectors to do selections of breeds. The results of experiment showed that when potatoes been raised up intense the mostly harvest been ‘Vinetos’ Strain... [to full text]
Worgan, Sean. "Bulmer Hobson : an Ulster nationalist 1902-1908." Thesis, Keele University, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.602806.
Full textCsobod, Sylvia, and Vivian Lazar. "En undersökning av buller : Anläggningsprojekt E05 Korsvägen." Thesis, Högskolan i Borås, Akademin för textil, teknik och ekonomi, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:hb:diva-21302.
Full textThis report covers projects E05 Korsvägen where the client is Trafikverket and the contractor West Link Contractors, WLC. We have chosen to examine a subject for the project and chose to immerse ourselves in noise issues. Korsvägen is a substage of the West Link built in central Gothenburg. The project will affect the environment with noise from the construction site. It is therefore interesting to investigate how the environment is affected and how workers and entrepreneurs within the project experience a noisy work environment. Furthermore, as there are increasingly large complex infrastructure projects, it is interesting to shed light on how WLC is working to achieve the requirements regarding noise. The report is a combination of quantitative and qualitative methodologies. The quantitative part consisted of two surveys. One survey examined the experience of nearby companies regarding noise disturbances from the project. The second survey examined how workers in the project are affected by noise in their daily work. For a deepening of how noise issues are handled within WLC, qualitative telephone interviews were conducted with selected people from the project. The results found that workers in the project are not sufficiently aware of the consequences and health effects caused by noise. Today there is no requirement to use hearing protection in the construction area, however, hearing protection should be used as needed when noisy work is carried out. Many workers believe that the use of hearing protection should be a requirement. The survey shows that noise from the project affects the surrounding activities and that the dissemination of information on noise disturbances is important. The noise requirements imposed against WLC have caused exemptions to be sought for certain noise-critical work operations. It also proved to be a challenge to work on these requirements for such a large project with many actors involved. Workers ' awareness of how noise affects health can be questioned. Although their daily work is perceived as noisy, they seem unaware of how noise can affect their future health. This is a health and safety issue that should be addressed. Improvement areas concerning noise issues are better communication between the parties involved and ensuring that information on noise disturbance reaches all concerned.
Sanden, Thov Øye. "Bulder : stedsutvikling og potensialundersøking i Vingsand, Osen." Thesis, Norges teknisk-naturvitenskapelige universitet, Fakultet for arkitektur og billedkunst, 2013. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-24354.
Full textHolgersson, Johan. "Read my lips : Visuell talavläsning och buller." Thesis, Linköpings universitet, Institutionen för datavetenskap, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-71266.
Full textJirong, Jenny. "En undersökning om buller som stressfaktor i förskolan." Thesis, University of Gävle, Department of Mathematics, Natural and Computer Sciences, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-6031.
Full textStenkvist, Anna, and Emilia Jonsson. "Buller i förskolan : Hur påverkas den pedagogiska verksamheten?" Thesis, University of Kalmar, School of Human Sciences, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:hik:diva-106.
Full textSyftet med studien är att ta reda på hur buller i förskolan påverkar den pedagogiska verksamheten, med utgångspunkt från pedagogers upplevelser och erfarenheter av ämnet. Studien utgår från intervjuer med verksamma pedagoger i förskolan och en observation på en förskoleavdelning. Bakgrunden bygger på information samlat från böcker, tidskrifter och webbsidor.
Buller i förskolan anses av informanterna vara ett problem eftersom både barn och pedagoger far illa av att varje dag vistas i en miljö med hög ljudnivå. Det leder bland annat till att både barn och vuxna blir stressade, koncentrationsförmågan blir försämrad samt att det kan leda till hörselnedsättningar. Det är pedagogens uppgift att skapa en bra ljudmiljö där man kan bedriva en bra pedagogisk verksamhet. I en väl fungerande förskola ska det finnas utrymme för varierande aktiviteter. Barn har behov av dels lugna och tysta aktiviteter men även av fysiska och livliga aktiviteter som gärna blir högljudda.
Vi vet att barn låter när de leker och att de måste tillåtas att leka högljudda lekar även i förskolan. Vi anser att man som pedagog inte ständigt ska försöka att dämpa barnen, då det kan störa deras leklust. Det är inte barnen som ska anpassa sig efter omgivningen utan det är omgivningen som ska anpassas efter barnen. Vi tycker att det är viktigt att rum i förskolan inreds med ljudabsorberande material på väggar, golv och i taken. Då kan barnen leka livliga lekar utan att orsaka en hög bullernivå.
Sarhatlić, Nerim. "Identifiering och kartläggning av buller i centrala Falun." Thesis, Högskolan Dalarna, Byggteknik, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:du-14632.
Full textA problem in today's modern society is that the noise levels are too high. These high levels of noise is a health hazard and can give man permanent damage. Noise pollution is something that must not be neglected. The purpose of this study is to identify and map the noise on Holmgatan in central Falun. The purpose is also to analyze the results and put them in relation with the regulatory requirements and guidelines regarding noise levels and to analyze the results and see if actions should be taken against the noise on Holmgatan. The thesis is limited to noise measurements and mapping of parts of Holmgatan, considered to be especially vulnerable to noise. Noise measurements were conducted during four weekdays and during times from when most stores open to most of them then closing, at. 10-18. The method consisted of noise measurements which were performed at hourly intervals along the selected portion of Holmgatan. The days on which these measurements were performed was from 2/12 to 5/12-2013. The results are reported as average value per hour of any day on which noise measurements were made. The results varied, the lowest average noise was 57 dB and the highest average noise was 83 dB. It is clearly seen that the higher values are closer to a street used by buses and other transport vehicles. The lower values were generally near Geislerka parken, which is a large garden, an open area in the middle of Holmgatan. Overall, the average noise values were between 60-65 dB. The conclusion suggests that the noise level at Holmgatan do not exceed regulatory requirements on what is considered as harmful but it is just below the guidelines for the maximum level of outdoor noise (70 dB). Actions such as planting vegetation on the facades and to redirect the traffic could be done to reduce noise levels at Holmgatan.
Karlsson, Ida. "Buller från luftvärmepumpar : Juridiska aspeter och installatörernas roll i att förebygga olägenhet." Thesis, Högskolan i Halmstad, Sektionen för ekonomi och teknik (SET), 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-23318.
Full textRožėnaitė, Liuda. "Trąšų įtaka vidutinio ankstyvumo bulvių ‘Laura’ kokybei ir derliui." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2011. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2011~D_20110601_105910-26943.
Full textMaster's thesis investigated the influence of fertilizer medium early potatoes 'Laura' quality and yields. The object of work - potatoes grown in chemical and organic fertilization, in Radviliškis district, Raudondvaris village. The objective of work - the manure, compost, biohumus, organic fertilizer "Activity " and synthetic mineral fertilizers “YARA MILA" on medium early potatoes 'Laura'. Method of work - in LŽŪU Environmental Laboratory was observed electrochemical (acidity -alkalinity (pH), the absolute redox potential (rH) and electrical conductivity (γ)) and chemical (C vitamin content) characteristics. Calculating the potato tuber, stem heigh and number, and potato yield. All fertilizers equate at equal quantity of nitrogen (30 kg / ha). Research data processing mathematics - statistical methods. Data grouping and the statistical analysis was used in Microsoft Excel computer program. Results of work – investigations to assess the influence of fertilizer medium early potato ‘Laura’ and the following results: potato yield, tuber number, stalk height, stalk number was the largest potatoes fertilized with the mineral synthetic fertilizers “YARA MILA”. Compared the organic fertilizer only, the maximum yield, tuber number, stem density was fertilized with organic fertilizer “Activit”, the lowest yield was obtained due to the application of manure compost. The lowest stem was fertilized with biohumus, stem density significantly lower in compost fertilized potato... [to full text]
Garbenis, Vaidotas. "Biologinių ekstraktų, tinkamų Kolorado vabalo bulvių pasėliuose kontrolei, tyrimai." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2009. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2008~D_20090114_154843-26644.
Full textObject of work – cultivation of ecologic potatoes, in which was found colorado beetles. Purpose of work – to estimate pine and clove extracts influence for pest (colorado beetles) into potatoes crops. Methods of work – the research had been conducting at 2007 y.. The seed of potatoes was cultivating in brightly and warm place for twenty days. The test was made in plot of garden. The soil was diged by spade on springtime. Manure was spread by spade 40 t. to hectare norm. The sort of potatoes „Rosela“. The potatoes was plant into furrows by hands. The researching potatoes was plant into to furrow, for sprinkling by extracts and for control. The potatoes was sprinkled by pine and clove extracts. Because of rain potatoes already was 10-15 cm. high, when appear first pests. After sprinkling was looking, if populiation of insects decrease, and testing which of extratcs was more effective. After potaoes gathering, it was weigh. Was find out a average weight of one potatoes growth bush, and average number of potatoes into bush. Was used screen to protect other rows of potato. The weight of lumps was found by weigh method. The harvest of sprinkled potatoes was compare with control rows. Before tests, was testing which concentration of extract to choose for research ( because of shortage of time, and complication of research). The research have been done in to place: Voke and Silale. I come to concliusion that 1% concentration extract aren‘t efective... [to full text]
Sophoulis, Pananos P. "A study of Byzantine-Bulgar relations, 775-816 AD." Thesis, University of Oxford, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.416827.
Full textMoreira, Thiago dos Santos [UNIFESP]. "Integração de mecanismos cardiovasculares e respiratórios na região bulbar." Universidade Federal de São Paulo (UNIFESP), 2007. http://repositorio.unifesp.br/handle/11600/23416.
Full textFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
The present thesis will try to elucidate important excitatory mechanisms in the brainstem related to cardio-respiratory control. We will discuss 4 recently published papers (cardiovascular control: Moreira e cols., 2005 e 2007; cardiorespiratory control: Takakura e cols., 2006; Moreira e cols., 2006). Papers 1 and 2: Glutamatergic mechanisms related to cardiovascular control. In the present study, we investigated the effects of inhibition of the caudal ventrolateral medulla (CVLM) with the GABA(A) agonist muscimol combined with the blockade of glutamatergic mechanism in the nucleus of the solitary tract (NTS) with kynurenic acid (kyn) on mean arterial pressure (MAP), heart rate (HR), and regional vascular resistances. In male Holtzman rats anesthetized intravenously with urethane/chloralose, bilateral injections of muscimol (120 pmol) into the CVLM or bilateral injections of kyn (2.7 nmol) into the NTS alone increased MAP to 186 ± 11 and to 142 ± 6 mmHg, respectively, vs. control: 105 ± 4 mmHg; HR to 407 ± 15 and to 412 ± 18 beats per minute (bpm), respectively, vs. control: 352 ± 12 bpm; and renal, mesenteric and hindquarter vascular resistances. However, in rats with the CVLM bilaterally blocked by muscimol, additional injections of kyn into the NTS reduced MAP to 88 ± 5 mmHg and mesenteric and hindquarter vascular resistances below control baseline levels. Moreover, in rats with the glutamatergic mechanisms of the NTS blocked by bilateral injections of kyn, additional injections of muscimol into the CVLM also reduced MAP to 92 ± 2 mmHg and mesenteric and hindquarter vascular resistances below control baseline levels. Simultaneous blockade of NTS and CVLM did not modify the increase in HR but also abolished the increase in renal vascular resistance produced by each treatment alone. The results suggest that important pressor mechanisms arise from the NTS and CVLM to control vascular resistance and arterial pressure under the conditions of the present study. Papers 3 and 4: Central chemoreceptors brainstem mechanisms related to cardio-respiratory control. Paper 3: Interaction between central and peripheral chemoreceptors. The rat retrotrapezoid nucleus (RTN) contains pH-sensitive neurons that are putative central chemoreceptors. Here, we examined whether these neurons respond to peripheral chemoreceptor stimulation and whether the input is direct from the solitary tract nucleus (NTS) or indirect via the respiratory network. A dense neuronal projection from commissural NTS (commNTS) to RTN was revealed using the anterograde tracer biotinylated dextran amine (BDA). Within RTN, 51% of BDA-labelled axonal varicosities contained detectable levels of vesicular glutamate transporter-2 (VGLUT2) but only 5% contained glutamic acid decarboxylase-67 (GAD67). Awake rats were exposed to hypoxia (n = 6) or normoxia (n = 5) 1 week after injection of the retrograde tracer cholera toxin B (CTB) into RTN. Hypoxia-activated neurons were identified by the presence of Fosimmunoreactive nuclei. CommNTS neurons immunoreactive for both Fos and CTB were found only in hypoxia-treated rats. VGLUT2 mRNA was detected in 92 ± 13% of these neurons whereas only 12 ± 9% contained GAD67 mRNA. In urethane-chloralose-anaesthetized rats, bilateral inhibition of the RTN with muscimol eliminated the phrenic nerve discharge (PND) at rest, during hyperoxic hypercapnia (10% CO2), and during peripheral chemoreceptor stimulation (hypoxia and/or i.v. sodium cyanide, NaCN). RTN CO2-activated neurons were recorded extracellularly in anaesthetized intact or vagotomized rats. These neurons were strongly activated by hypoxia (10-15% O2; 30 s) or by NaCN. Hypoxia and NaCN were ineffective in rats with carotid chemoreceptor denervation. Bilateral injection of muscimol into the ventral respiratory column 1.5 mm caudal to RTN eliminated PND and the respiratory modulation of RTN neurons. Muscimol did not change the threshold and sensitivity of RTN neurons to hyperoxic hypercapnia nor their activation by peripheral chemoreceptor stimulation. In conclusion, RTN neurons respond to brain pCO2 presumably via their intrinsic chemosensitivity and to carotid chemoreceptor activation via a direct glutamatergic pathway from commNTS that bypasses the respiratory network. RTN neurons probably contribute a portion of the chemical drive to breathe. Paper 4: Central chemoreceptors and sympathetic vasomotor outflow. The present study explores how elevations in brain pCO2 increase the sympathetic nerve discharge (SND). SND, phrenic nerve discharge (PND) and putative sympathoexcitatory vasomotor neurons of the rostral ventrolateral medulla (RVLM) were recorded in anaesthetized sino-aortic denervated and vagotomized rats. Hypercapnia (end-expiratory CO2 from 5% to 10%) increased SND (97 ± 6%) and the activity of RVLM neurons (67 ± 4%). Injection of kynurenic acid (Kyn, ionotropic glutamate receptor antagonist) into RVLM or the retrotrapezoid nucleus (RTN) eliminated or reduced PND, respectively, but did not change the effect of CO2 on SND. Bilateral injection of Kyn or muscimol into the rostral ventral respiratory group (rVRG-pre-Botzinger region, also called CVLM) eliminated PND while increasing the stimulatory effect of CO2 on SND. Muscimol injection into commissural part of the solitary tract nucleus (commNTS) had no effect on PND or SND activation by CO2. As expected, injection of Kyn into RVLM or muscimol into commNTS virtually blocked the effect of carotid body stimulation on SND in rats with intact carotid sinus nerves. In conclusion, CO2 increases SND by activating RVLM sympathoexcitatory neurons. The relevant central chemoreceptors are probably located within or close to RVLM and not in the NTS or in the rVRG-pre-Botzinger/CVLM region. RVLM sympathoexcitatory neurons may be intrinsically pH-sensitive and/or receive excitatory synaptic inputs from RTN chemoreceptors. Activation of the central respiratory network reduces the overall sympathetic response to CO2, presumably by activating barosensitive CVLM neurons and inhibiting RTN chemoreceptors.
A presente tese de doutorado vai tentar elucidar os mecanismos excitatórios do bulbo relacionados ao controle cardiovascular e respiratório. Para tanto serão discutidos 4 trabalhos recentemente publicados (controle cardiovascular: Moreira e cols., 2005 e 2007; controle cardio-respiratório: Takakura e cols., 2006; Moreira e cols., 2006). Trabalhos 1 e 2: Relacionado aos mecanismos glutamatérgicos responsáveis pelo controle cardiovascular. No presente estudo, procuramos investigar os efeitos cardiovasculares promovidos pela inibição da região caudoventrolateral (CVL) do bulbo com a injeção bilateral de muscimol, juntamente com o bloqueio glutamatérgico dos núcleos do trato solitário (NTS) (região postremal ou comissural) com a injeção de ácido quinurênico (antagonista de receptores glutamatérgicos). Foram utilizados ratos Holtzman, anestesiados com uretana e alfa-cloralose e registrou-se a pressão arterial média (PAM), frequência cardíaca (FC) e fluxo sanguíneo para os leitos renal, mesentérico e aórtico. A injeção bilateral de muscimol (agonista GABAérgico do sub-tipo A) (2 mM) na região do CVL ou a injeção de ácido quinurênico (50 mM) no NTS postremal produzem aumento de PAM (186 ± 11 ou 142 ± 6 mmHg, respectivamente, vs. controle: 105 ± 4 mmHg), de FC (407 ± 15 ou 412 ± 18 bpm, respectivamente, vs. controle: 352 ± 12 bpm) e aumento de resistência vascular renal, mesentérica e aórtica. A injeção de ácido quinurênico no NTS comissural (NTScom) não produz alterações nos valores basais da PAM, FC e resistência vascular. Entretanto, em animais com a injeção bilateral de muscimol no CVL, a injeção de ácido quinurênico no NTS (postremal ou comissural) reduziu a PAM e resistência vascular para valores abaixo do valor controle. Do mesmo modo, em ratos com o bloqueio do NTS (postremal ou comissural), a subsequente inibição do CVL produziu também uma redução da PAM e resistência vascular para valores abaixo do valor controle. Em animais com lesão eletrolítica da região do NTScom, a injeção de muscimol na região do CVL produziu redução da PAM e resistência vascular para valores abaixo do valor controle. Dinte disso, os resultados sugerem a existência de importantes mecanismos excitatórios no NTS (região postremal e comissural) e no CVL para controle da pressão arterial e resistência vascular. Trabalhos 3 e 4: Relacionado aos mecanismos bulbares ativados pelos quimiorreceptores centrais no controle cardio-respiratório. Trabalho 3: Interação entre quimiorreceptores centrais e periféricos. O núcleo retrotapezóide (NRT) contém neurônios sensíveis ao pH e são característicos como sendo quimiorreceptores centrais. A hipótese desse trabalho é procurar mostrar que a ativação dos quimiorreceptores periféricos promove a ativação dos quimiorreceptores centrais no NRT e que essa ativação é mediada por uma via direta do NTScom para o NRT. Nesse estudo foram utilizados ratos Sprague-Dawley. Uma densa projeção do NTScom para a região do NRT foi mostrada com o uso de traçadores anterógrados (amina dextrana biotinilada - BDA) injetados por iontoforese na região do NTScom. Na região do NRT, mais de 50% dos terminais que expressam BDA contêm a vesícula de transporte para glutamato (VGLUT2), mas apenas 5% contêm glutamina ácido descarboxilase (GAD67). Em um outro grupo de animais, uma semana após a injeção do traçador retrógrado cólera toxina B (CTB) no NRT, os animais foram expostos a períodos de hipóxia por 3 horas. A presença da proteína Fos serviu para identificar os neurônios que eram ativados pela hipóxia. Neurônios imunorreativos para Fos e CTB foram encontrados na região do NTScom. A grande maioria dos neurônios que eram imunorreativos para Fos e CTB, expressavam VGLUT2 mRNA, enquanto uma minoria expressou GAD67 mRNA. Na segunda parte do estudo foram utilizados animais anestesiados com uretana e alfa-cloralose e vagotomizados. A injeção bilateral de muscimol no NRT promoveu a eliminação do nervo frênico durante uma situação controle, durante a estimulação dos quimiorreceptores centrais (hipercapnia – 10% de CO2) e durante a estimulação dos quimiorreceptores periféricos (injeção endovenosa de cianeto de sódio ou hipóxia (10-15% de O2). A atividade dos neurônios quimiossensíveis do NRT foram registrados em animais intactos ou vagotomizados para possíveis comparações. Todos os neurônios quimiossensíveis do NRT foram ativados pelos quimiorreceptores periféricos. A ativação dos quimiorreceptores periféricos não promoveu a ativação dos neurônios do NRT em animais com desnervação dos quimiorreceptores. A injeção bilateral de muscimol na região do CVL promoveu a eliminação do nervo frênico e a modulação respiratória nos neurônios do NRT. A injeção de muscimol não alterou o limiar e a sensibilidade dos neurônios do NRT durante uma situação de hipercapnia e também durante a ativação dos quimiorreceptores periféricos. Portanto, podemos concluir nesse estudo que os neurônios do NRT respondem às variações de CO2 devido a presença de 2 mecanismos: sua quimiossensibilidade intrínseca e por meio da ativação dos quimiorreptores periféricos (via glutamatérgica direta do NTScom para o NRT). Trabalho 4: Quimiorreceptores centrais e atividade simpática. O próximo estudo procurou explorar como elevações na pCO2 pode aumentar a atividade simpática. Foram registrados a atividade simpática eferente do nervo esplâncnico, atividade do nervo frênico e atividade dos neurônios vasomotores da região rostroventrolateral (RVL) do bulbo. Os experimentos foram realizados em ratos Sprague-Dawley, anestesiados com halotana e completamente desnervados. Hipercapnia (variação do CO2 expirado de 5 para 10%) promoveu aumento da atividade simpática (97 ± 6%) e da atividade dos neurônios do RVL (67 ± 4%). A injeção bilateral de ácido quinurênico no RVL ou no NRT eliminou ou reduziu a atividade do nervo frênico, respectivamente, mas não alterou a atividade simpática eferente produzida pela hipercapnia. A injeção bilateral de ácido quinurênico ou muscimol na região do CVL eliminou a atividade do nervo frênico e promoveu um aumento do efeito estimulatório do CO2 na atividade simpática. A injeção de muscimol na região comissural do NTS não alterou as respostas estimulatórias do CO2 sobre a atividade simpática e atividade do nervo frênico. Como esperado, a injeção de ácido quinurênico no RVL ou a injeção de muscimol no NTS comissural, em ratos intactos, bloqueou os efeitos cardio-respiratórios da estimulação dos quimiorreceptores periféricos com a injeção endovenosa de cianeto de sódio. Em conclusão, a hipercapnia aumentou a atividade simpática por ativação dos neurônios bulbo-espinais do RVL. Os neurônios excitatórios do RVL podem ser sensíveis a variações de CO2 e/ou receber projeções excitatórias dos quimiorreceptores centrais da região do NRT. Durante uma situação de hipercapnia, o total de aumento da atividade simpática produzido pela ativação dos quimiorreceptores centrais parece estar reduzido. Esse efeito é, portanto, mediado pela ativação de neurônios barossensíveis da região do CVL ou, então, pela inibição dos quimiorreceptores centrais do NRT.
FAPESP: 03/08163-4
FAPESP: 98/06231-2
Capes: 3495/04-3
BV UNIFESP: Teses e dissertações
Franzén, Henny, and Nilsson Carl Elmondt. "Akustiska värden i platonkonstruktioner : Minimera lågfrekvent buller i skolmiljöer." Thesis, KTH, Byggteknik och design, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-260248.
Full textThis study highlights the intensity and the extent of sound levels produced by a so called floating floor. The study has closely observed floor constructions made of Platon mat in order to detect the acoustic factors and how they are manifested when stepping on the floor. The study also compares the results of step- and drum sound levels with Granab constructions, another type of floating floor, as well as how the Platon construction stands in relation to the statutory guide values. This study has focused on how the sound from a Platon floor is perceived in an objective and a subjective perspective, because in some cases measured values do not correspond to the actual experience. Measurements that have been carried out give an idea of how to design floors and what type of material should be used to obtain the most favorable sound level possible. Overall, this study shows that the design of the floors can, to a large extent, minimize step- and drum sounds. This knowledge can be of great use when designing a floating floor since it has been shown that high sound levels in the lower frequencies affect, among other things, our abilities of learning and concentrating.
Akustik, platongolv.
Lindborg, Fredrik. "Sounds of our lives : Buller i klassrummet utifrån bildlärarens perspektiv." Thesis, Konstfack, Institutionen för Bildpedagogik (BI), 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:konstfack:diva-4145.
Full textStråhle, Mattias, and Nina Olofsson. "Buller i bostäder : Projektering av bostäder med hänsyn till trafikbuller." Thesis, Örebro universitet, Institutionen för naturvetenskap och teknik, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:oru:diva-31052.
Full textMany of the Swedish municipality’s wants to increase the density of housing and commercial buildings in the city. The ambition is to fill gaps and use vacant lots that have not previously been built upon.The paper deals with the problems that traffic noise creates and that has to be addressed when planning new apartments. It also investigates the regulations that governs the technical design and plan of apartments with regard to traffic noise. Skanska have previously experienced difficulties with getting building permits approved if the plan incorporated bedrooms facing towards the traffic noise.The focus is on regulationsand general advice that governs the locations of bedrooms and tries to find solutions that makes it possible to get building permit with bedroom facing the noisy side. To find a solution to the problem we have examined the following: Laws and regulations like PBL, PBF, BBR and Boverkets general advice. How Örebromunicipalityapplies regulations and general advice. If different municipalities in Sweden applies regulations andgeneral advice in the same manor. Examinationof the sound-absorbing propertiesof available wall constructions and windows to find out if it is possible to fulfill guidelines regarding sound level in bedrooms. If there is a useful difference in sound level outside the wall for different floors in buildings.
Johnston, Michael David. "The geology of the Rotokohu coal measures, Inangahua Valley, Buller." Thesis, University of Canterbury. Department of Geology, 1987. http://hdl.handle.net/10092/4059.
Full textGöbel, Walter. "Edward Bulwer-Lytton : Systemreferenz, Funktion, literarischer Wert in seinem Erzählwerk /." Heidelberg : C. Winter, 1993. http://catalogue.bnf.fr/ark:/12148/cb35610728m.
Full textHolmberg, Kjell. "Critical noise factors and their relation to annoyance in working environments /." Luleå : Umeå : Luleå tekniska univ. ; Arbetslivsinstitutet, 1997. http://epubl.luth.se/1402-1544/1997/05/index.html.
Full textBobrowski, Lena. "Textila ljudabsorbenter : En textanalys av forskningsarbeten om textila fibrer och buller." Thesis, Department of Culture and Communication, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-20087.
Full textArbetets syfte är att genom en textanalys av olika forskningsarbeten upptäcka sambanden mellan textila fibermaterial, buller och ohälsa med inriktning mot det öppna kontorslandskapet och det lågfrekventa ljudet. Utifrån syftet besvaras följande frågeställningar: Vilka kunskapsområden blir synliga vid tillverkning av textila ljudabsorbenter med inriktning mot det lågfrekventa ljudet? Vilka kunskapsområden kan en tillverkare av textila ljudabsorbenter behöva belysa utifrån ett specifikt ljudproblem?
Frågeställningen besvaras genom en kvalitativ dokumentstudie där textmaterialet består av forskningslitteratur, facklitteratur och artiklar. Syftet är att utveckla nya perspektiv kring textila ljudabsorbenter. Genom att ge inblick kring ljudets beteende och skapa insikter kring hur buller påverkar hälsan. Detta för att få en så bred kunskapsspridning som möjligt gällande textila ljudabsorbenter för att finna samband mellan olika berörda områden.
I resultatet framgår det att textila fibrer har betydelse vid tillverkning av en textil ljudabsorbent. Betydelsen ligger i att olika textila fibrer får varierande ljudupptagningsförmågor beroende vilken grovlek, längd och behandling materialet utsätts för. Likaväl är varierande kunskaper av vikt utifrån rummets utformning, ljudets påverkan på hälsan och kring ljudets akustiska egenskaper. Kunskaper från olika områden som sedan kan vävas samman vid tillverkningen av textila ljudabsorbenter.
Livanios, Dimitrios. "Bulgar-Yugoslav controversy over Macedonia and the British connection, 1939-1949." Thesis, University of Oxford, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.308855.
Full textGuymer, Laurence. "Curing the sick man : Sir Henry Bulwer and the Ottoman Empire." Thesis, University of East Anglia, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.522271.
Full textNewell, Claire. "Vegetation classification of an area on coal measures, Buller, New Zealand." Thesis, University of Canterbury. Plant and Microbial Sciences, 1990. http://hdl.handle.net/10092/6589.
Full textBigun, Christopher, and Erik Sjöstrand. "Den ljudlösa bilen : En undersökning om buller, bång och brummande bilar." Thesis, Blekinge Tekniska Högskola, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-1034.
Full textThis degree project will examine active sound design for quiet vehicles. Based on former research wether electric cars expose humans living in urban areas to danger due to the absence of auditive information, we will develop suggestions for dynamic eninge sounds which are related to traffic safety, design and reduced noise pollution. Cities’ overall noise levels are far beyond recommended, and the consequences causes health issues in bigger cities. This paper will therefore discuss the problems with noise pollution in cities, and wether the electric car is capable of reducing the overall sound levels while maintaining pedestrians’ and cyclists’ awareness in traffic by auditive information. Our interpretation resulted in engine sounds which not only contains a causionary effect on it’s surroundings, but also could contribute to the reduction of noise pollution in comparison to combustion engines.
Roberts, M. F. "The development of the Rosicrucian novel : From Godwin to Bulwer-Lytton." Thesis, University of Manchester, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.378824.
Full textHolgersson, Ann. "Sjuksköterskors upplevelser av hur arbetsprestationen påverkas av buller och störande ljud." Thesis, Högskolan i Borås, Institutionen för Vårdvetenskap, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:hb:diva-20203.
Full textProgram: Specialistsjuksköterskeutbildning med inriktning mot intensivvård
Buller, Götz Johannes [Verfasser]. "Chirurgische Ergebnisse nach neoadjuvanter Radiochemotherapie plus Bevacizumab beim Rektumkarzinom / Götz Johannes Buller." Berlin : Medizinische Fakultät Charité - Universitätsmedizin Berlin, 2012. http://d-nb.info/1030380791/34.
Full textSchiavini, João Luiz. "Caracterização histológica das margens uretrais em pacientes submetidos a uretroplastia anastomótica bulbar." Universidade do Estado do Rio de Janeiro, 2009. http://www.bdtd.uerj.br/tde_busca/arquivo.php?codArquivo=1910.
Full textA realização meticulosa de uma incisão ou excisão do segmento estenosado e da esponjofibrose associada, proximal ou distal, é crítica para o sucesso da uretroplastia anterior. Entretanto, a normalidade das margens da uretra estenosada é determinada durante o procedimento cirúrgico, baseado apenas no aspecto macroscópico do tecido. Não se encontraram na literatura estudos microscópicos avaliando as margens normais. O objetivo deste trabalho é caracterizar o aspecto histológico das margens aparentemente normais da estenose uretral masculina e o efeito causado pela realização de uma cistostomia supra púbica na microestrutura da extremidade uretral proximal à estenose. Materiais e Método: As amostras foram obtidas de 29 pacientes com média de idade de 40,3 anos, variando de 20 a 65 anos, submetidos à uretroplastia bulbar término-terminal. O segmento estenosado foi removido e foram realizadas biópsias nas extremidades supostamente sadias (proximais e distais). A caracterização estrutural foi realizada pelas seguintes colorações histológicas: Hematoxilina/Eosina, tricrômico de Masson, resorcina-fucsina de Weigert e picrosirius polarizado. Em 15 pacientes (52%) foi realizada uma cistostomia suprapúbica, cerca de um mês antes da uretroplastia,. O grupo controle consistiu de 10 uretras bulbares macroscopicamente normais, obtidas de cadáveres frescos, com média de idade de 24,7 anos (entre 21 e 32 anos). Resultados: A estenose de uretra decorreu da retração cicatricial do tecido fibroso, constituído por uma matriz extracelular (MEC) densa em todos os casos, que ocupou os seios vasculares do corpo esponjoso. A MEC foi constituída, na sua maioria, principalmente por colágeno e fibras elásticas. Em nenhum paciente as margens uretrais eram normais. Todas as extremidades tinham alterações microscópicas agudas e/ou crônicas quando comparadas ao grupo controle. Nas extremidades proximais, o depósito de MEC tinha alta densidade celular em 18 casos (62,1%). Estas células foram predominantemente inflamatórias e fibroblastos. Sua presença se relacionou ao tempo de lesão uretral e à ausência de cistostomia suprapúbica. Além disso, as fibras elásticas tiveram distribuição heterogênea na extremidade proximal. Encontrou-se hiperplasia epitelial em 20 (69%) extremidades proximais da uretra e uretrite aguda com infiltrado inflamatório misto. Com relação à distribuição de colágeno tipo I e III, diferenças marcantes foram encontradas em todos os grupos. Conclusão: As extremidades supostamente normais da uretroplastia término-terminal apresentam alterações estruturais. A derivação urinária suprapúbica pode influenciar a composição da MEC na uretra bulbar proximal. O valor clínico destes achados, entretanto, necessita maiores investigações. Palavras Chave: Uretra, Estenose uretral, Matriz extracelular, Colágeno, Procedimentos cirúrgicos reconstrutores.
Frommelin, Emelie, and Sara Strang. "Pappa bakar bullar : Sokratiska samtal med barn på fritidshem om stereotypa könsnormer." Thesis, Högskolan i Borås, Akademin för bibliotek, information, pedagogik och IT, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:hb:diva-12473.
Full textXavier, José Roberto. "L'opinion publique au sein du système de justice pénale: L'affaire James Bulger." Thesis, University of Ottawa (Canada), 2005. http://hdl.handle.net/10393/27085.
Full textGadeborg, Josefine. "Samordnad prövning av buller enligt MB och PBL : möjlighet till ökad förtätning." Thesis, Umeå universitet, Juridiska institutionen, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-105476.
Full textCarlaby, Jesper. "Ventilationsbuller : Teknik och ekonomi för ett tyst system." Thesis, Karlstads universitet, Avdelningen för energi-, miljö- och byggteknik, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-28140.
Full textNoise from the ventilation systems affects us more or less every day. There are some requirements on how much noise that’s allowed to generate from the ventilation system set by Karlstads Kommun based on Boverkets Byggregler. But how could a more silent system be constructed at a more stringent level of requirements? The aim is to investigate a reasonable sound level based on technology and economics. Based on Råtorps preschool, owned and operated by Karlstads Kommun, performed calculations using the existing calculation template and sound measurement according to a Swedish Standard. It is done to find out how the sound environment of preschool looks like today in relation to the requirements set. An analyze of the staff's perception of sound generation from ventilation to be able to consider what is an acceptable noise level. Subsequently, calculations are made to find out which theoretical improvements that can be done, especially technically and also financially, in order to reduce the noise level. According to the noise measurements that are made, the noise level at the preschool is below or at the same level as the requirements. The results are consistent with the calculations performed in addition to the room that previously was in line with the requirements, now is over the limit. The noise from the ventilation is perceived as disruptive in two of the four rooms, but the results of the theoretical improvements are showing that it is possible to reduce the noise to a more acceptable level. This can be done without major financial consequences, than the most costly and improvement measure that was tested found to be least effective in lowering the noise level. This work results in that even though the set requirements are followed as perceived ventilation to some extent as disturbing nonetheless. It would be possible to reduce noise generation with relatively small funds without excessive economic consequences and thus create a better working environment.
Phillips, Adrian. "The Newgate novels and drama of the 1830s." Thesis, University of York, 2001. http://etheses.whiterose.ac.uk/10796/.
Full textKahyaoglu, Leyla Nesrin. "Usage Of Spouted Bed And Microwave Assisted Spouted Bed Dryers In Bulgur Production." Master's thesis, METU, 2009. http://etd.lib.metu.edu.tr/upload/3/12610856/index.pdf.
Full textyield and water absorption capacity for bulgur. The drying rate increased with air temperature and microwave power. Microwave assisted spouted bed drying at microwave power of 288W and 624 W reduced drying time by at least 60% and 85%, respectively compared to spouted bed drying. The effective moisture diffusivities of bulgur in the spouted bed and microwave assisted spouted bed drying were found to be 2.356x10-10 and 8.398x10-10 m2/s on the average, respectively. The effect of air temperature on product quality except color was not significant in spouted bed drying. Interior kernel porosity, sphericity and L* value of dried cooked wheat increased with air temperature and microwave power. Yield and water absorption capacity of bulgur tended to decrease as microwave power increased. According to SEM analysis, more porous structure was observed in wheat samples dried in microwave assisted spouted bed compared to air dried ones. In microwave assisted spouted bed drying, lower water absorption capacity, bulk density and apparent density, higher sphericity and lighter color were observed as compared to spouted bed drying.
Crichlow, Wesley E. A. "Buller men and batty bwoys, hidden men in Toronto and Halifax Black communities." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/tape17/PQDD_0004/NQ35135.pdf.
Full textBuller, Christoph [Verfasser]. "Mittelfristige Ergebnisse nach Implantation interspinöser Spreizer an der Lendenwirbelsäule (Wallis®) / Christoph Buller." Greifswald : Universitätsbibliothek Greifswald, 2014. http://d-nb.info/1049995015/34.
Full textBengtsson, Malin, and Erica Ramenberg. "Batman bakar bullar : En intervjustudie om förskollärares pedagogiska arbete med genus i förskolan." Thesis, Uppsala universitet, Institutionen för pedagogik, didaktik och utbildningsstudier, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-336628.
Full textSvensson, Britt. "Miljöproblem i förskolan : om barn och inomhusmiljöer." Thesis, Växjö University, School of Education, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:vxu:diva-1742.
Full textStudien handlar om barnens fysiska miljö på Montessoriförskolor och traditionella förskolor och hur buller och ljussättning påverkar barnen. Undersökningen utfördes med en kvalitativ metod och med ostrukturerade observationer. Intervjuerna genomfördes med pedagoger och barn på tre Montessoriförskolor och tre traditionella förskolor. Samtliga pedagoger som blivit intervjuade var medvetna om de höga ljudnivåerna och försökte förhindra att de uppstod. Men vissa skillnader framkom eftersom pedagogerna på Montessoriförskolorna ansåg att de hade en lugn och harmonisk inomhusmiljö medan pedagogerna på de traditionella förskolorna ofta upplevde sin miljö som högljudd. Orsaken till de höga ljudnivåerna berodde på att det förekom större barngrupper på de traditionella förskolorna än på Montessoriförskolorna. På alla förskolor utom på en Montessoriförskola förekom det lysrör som belysning i huvudsak men alla pedagoger tyckte att ljussättningen fungerade bra. I resultatet kan man se att ett fåtal av barnen tyckte det var jobbigt med höga ljud och när andra barn bråkar och springer inomhus.
Sandén, Gustav, and Jonas Hedenström. "Bullerskydds integrering : en fallstudie i Borås." Thesis, Tekniska Högskolan, Högskolan i Jönköping, JTH, Byggnadsteknik, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-22129.
Full textOne of the major environmental disturbances in Sweden is traffic noise, over 1.4 million people are estimated to be exposed to noise exceeding 55 dB. Noise is a health issue, not life threatening but it affects both health and the quality of life. Noise can for example disturb sleep, cause hearing problems, create difficulty in concentration and longtime exposure can lead to problems with the cardiovascularsystem. The purpose of this rapport is to investigate how noise protection can be integrated in the facade and the design of a building. The report is based on two questions.1-what types of noise protection may be suitable for integration into the building's outer layer?2-how can noise protection be integrated as part of the building’s design? The questions included in this report are answered with the help of a literature study, analysis, and sketching. The Literature study contains information on the different types of noise protection. Examples of such protection is noise barriers, vegetation and exterior corridors. Studies of reference objects and the detail plan are the parts that formed the analysis. Based on these two elements, sketches with appropriate solutions were illustrated both in form of hand sketches and 3D models. Noise protection such as noise barriers often require a lot of space and can be difficult to integrate into an urban area. To counteract noise, it is important that already in the planning stage consider noise problems. This to enable and provide a good acoustic environment. Consideration of climate and level of exposure should always be taken when selecting noise protection, this when certain conditions are not favorable for all kinds of protection. The noise protection we investigated was evaluated regarding its ability to be integrated and its suitability for the property to which the work is based on. Following evaluation, exterior corridors with a glass façade, green roof and a design of the building which provides good opportunities for a “tyst sida” were chosen.
Gombrii, David. "Mätning av partiklar (PM10) och buller kring bullerplank och innergårdar : och hur dessa kan skydda boende och gångtrafikanter." Thesis, Uppsala universitet, Tillämpad matematik och statistik, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-265087.
Full textI denna studie har partikelhalter (PM10) och bullernivåer mätts invid Lundbyleden (nära HjalmarBrantingsplatsen) samt E45:an (på Stena Danmarksterminal) i centrala Göteborg. Detta är intressantdå både partiklar och buller har negativa effekter på vår hälsa. De kan vid långvarig exponering geupphov bland annat till hjärt- och kärlsjukdomar och orsakar varje år tusentals förtida dödsfall(Naturvårdsverket, 2015). Det är då intressant att studera partiklar och buller nära högt trafikerademotorleder som går genom bostadsområden i städer, vilket kan orsaka hög exponering för denärboende och de som jobbar eller av annan anledning vistas i området. Det är då intressant hurolika typer av barriärer mellan väg och bostadsområden påverkar partiklar och buller. Dels har detundersökts vilken inverkan bullerplank har på partikelhalter och bullernivåer nära vägen och dels harhalterna och nivåerna på innergårdar nära vägen studerats. För att mäta detta har en portabel mätstation konstruerats, där en partikelmätare (DustTrak), enmikrofon och en GPS-mottagare kopplats ihop med en enkortsdator (Raspberry Pi). Datat har loggatsoch processats i enkortsdatorn. Mätningar av bullerplankets effekter gjordes på 8-10 mätpunkter på olika avstånd från planket. Vidvarje mätpunkt skedde en 15 minuter lång mätning, där medianvärden sedan togs ut ochanalyserades. På och kring innergårdarna gjordes 5-7 mätningar på olika intressanta platser påinnergården, samt framför och bakom innergården. På grund av tidskrävande mätningar kunde endast tre mätningar göras vid varje mätplats, såresultatet i denna rapport får ses som en fingervisning på hur det kan se ut. I studien sänker ettbullerplank partikelhalterna kring 50 % direkt bakom planket och har en sänkande inverkan upp till 40 meter från planket då vinden är riktad från vägen. Planket sänker bullernivån direkt bakomplanket med 16 resp. 12 dBA för ett nytt plank av glas och betong resp. ett gammalt av trä. Bullernivån sänks åtminstone inom ett avstånd av 100 meter från planket. I studien skyddar en gammal helt omsluten innergård bättre mot både buller och partiklar än ennybyggd bullerskyddad innergård med flertalet öppningar. Vad gäller partiklar gick det inte att finnanågon skillnad mellan halterna på och utanför den bullerskyddade innergården. Den helt omslutnainnergården hade däremot 20 % lägre halter än utanför för en typisk bakgrund och trafikutsläpp. Vadgäller buller hade båda innergårdarna en sänkande inverkan på kring 6-7 dBA jämfört med utanförinnergårdarna. På den bullerskyddade innergården var dock denna sänkande inverkan svagare närainnergårdens öppningar.