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Dissertations / Theses on the topic 'Temperature change of coolant'

Author: Grafiati

Published: 28 May 2022

Last updated: 31 July 2025

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1

Rakkimuthu, Sathyaprabha. "Improved Thermoregulation Of Brain Temperature Using Phase Change Material-Mediated Head Cooling System." University of Cincinnati / OhioLINK, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1613750048541054.

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2

Pedotto, Cristina. "Using IR thermography to determine the heat flux removed by spray cooling a high-temperature metallic surface." Thesis, Manhattan, Kan. : Kansas State University, 2008. http://hdl.handle.net/2097/1044.

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3

Klein, Daniel R. "The electricity system vulnerability of selected European countries to climate change : A comparative analysis." Thesis, Linköpings universitet, Tema vatten i natur och samhälle, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-96598.

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The electricity system is particularly susceptible to climate change due to the close interconnectedness between not only electricity production and consumption to climate, but also the interdependence of many European countries in terms of electricity imports and exports. This study provides a country based relative analysis of a number of selected European countries’ electricity system vulnerability to climate change. Taking into account a number of quantitative influencing factors, the vulnerability of each country is examined both for the current system and using some projected data. Ultim

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4

Bach, Aaron James Edward. "The evaluation of cooling systems to reduce heat strain in individuals wearing personal protective clothing." Thesis, Queensland University of Technology, 2020. https://eprints.qut.edu.au/200627/1/Aaron_Bach_Thesis.pdf.

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Personal cooling systems, worn by emergency first responders under protective clothing, are designed to minimise the risk of heat illness. This thesis reaffirms that first responder agencies (e.g. fire, police) identify heat illness as a genuine threat to worker safety. Further, it identifies that certain personal cooling systems alleviate the heat better than others, and the combination of air temperature and humidity has a direct effect on their performance. Therefore, the use of cooling systems, by first responder agencies, needs to be considered in the context of the protective clothing be

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5

Сотник, Микола Іванович, Николай Иванович Сотник, Mykola Ivanovych Sotnyk та А. К. Черноброва. "Результати досліджень режиму чергового опалення приміщення". Thesis, Сумський державний університет, 2017. http://essuir.sumdu.edu.ua/handle/123456789/63200.

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Нагальною проблемою впровадження режимів чергового опалення є надійна та достовірна методика визначення параметрів перехідного теплового процесу при опаленні приміщення. Наявні методи (навіть визначені у ДБН) не дають достатньо точного результату, бо не враховують у моделі перехідного процесу теплові ємності елементів приміщення (тепло акумулятори). Застосування числових моделей з використанням електричних методів аналізу теплового процесу дозволяє визначати термін часу перехідного процесу, граничні температури регулювання.

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6

He, Bo. "High-Capacity Cool Thermal Energy Storage for Peak Shaving - a Solution for Energy Challenges in the 21st century." Doctoral thesis, KTH, Chemical Engineering and Technology, 2004. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-3781.

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<p>Due to climatic change, increasing thermal loads inbuildings and rising living standards, comfort cooling inbuildings is becoming increasingly important and the demand forcomfort cooling is expanding very quickly around the world. Theincreased cooling demand results in a peak in electrical powerdemand during the hottest summer hours. This peak presents newchallenges and uncertainties to electricity utilities and theircustomers.</p><p>Cool thermal storage systems have not only the potential tobecome one of the primary solutions to the electrical powerimbalance between production and demand,

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7

NADELLA, Venkata Raghurama Swaroop. "CFD Simulation of MQL with low temperature and high-pressure coolant." Thesis, KTH, Industriell produktion, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-244417.

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Att använda stora mängder skärvätskor vid en bearbetningsprocess har potentiellt negativ inverkan inte bara för operatören men också på miljön. Utöver detta tillkommer ökade kostnader för tillverkningsprocessen. För att minska skärvätskekonsumtionen under maskinbearbetning införs en teknik som kallas minimalsmörjning(MQL=Minimum Quantity Lubrication) som använder mycket mindre mängd skärvätska men ändå är effektivare än standard kylspolning med skärvätska. Denna avhandling fokuserar på att bestämma konvektionen över ett skär med en konstant värmekälla placerad inuti ett kvadratiskt hölje och b

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8

Liu, Chunde. "Creation of hot summer years and evaluation of overheating risk at a high spatial resolution under a changing climate." Thesis, University of Bath, 2017. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.725405.

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It is believed that the extremely hot European summer in 2003, where tens of thousands died in buildings, will become the norm by the 2040s, and hence there is the urgent need to accurately assess the risk that buildings pose. Thermal simulations based on warmer than typical years will be key to this. Unfortunately, the existing warmer than typical years, such as probabilistic Design Summer Years (pDSYs) are not robust measures due to their simple selection method, and can even be cooler than typical years. This study developed two new summer reference years: one (pHSY-1) is suitable for asses

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9

Durkee, Nicholas A. "Temperature Robust Longwave Infrared Hyperspectral Change Detection." Wright State University / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=wright1547481549821121.

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10

Pack, Jessica Spencer. "Effect of Localized Temperature Change on Vigilance Performance." Wright State University / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=wright1429286666.

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11

Iskandar, Marco Antonio. "Análise e projeto de um sistema de controle de arrefecimento de um motor Diesel, visando à redução das emissões e consumo de combustível." [s.n.], 2011. http://repositorio.unicamp.br/jspui/handle/REPOSIP/264902.

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Orientador: Alberto Adade Filho<br>Dissertação (mestrado profissional) - Universidade Estadual de Campinas, Faculdade de Engenharia Mecânica<br>Made available in DSpace on 2018-08-18T21:11:42Z (GMT). No. of bitstreams: 1 Iskandar_MarcoAntonio_M.pdf: 4356371 bytes, checksum: 8b89db3b0ba0eb163732c9073c792ae9 (MD5) Previous issue date: 2011<br>Resumo: A tecnologia de motores diesel tem sido guiada por legislações cada vez mais severas. Para cumprir com estas legislações os sistemas de controle de emissões estão se desenvolvendo rapidamente visando à disponibilização no mercado de produtos que a

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12

Eroglu, Sinan. "Coupling of CFD analysis of the coolant flow with the FE thermal analysis of a diesel engine." Thesis, Loughborough University, 2007. https://dspace.lboro.ac.uk/2134/12655.

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In the process of engine design, it is important for the engine designer to predict the accurate component temperatures. Controlling the temperature of engine components requires a better understanding of the coolant behaviour in the coolant jacket of an engine which is critical to internal combustion engine design, The studies reported in the literature emphasize the influence of the cooling system on other engine operation such as exhaust emission, fuel consumption and engine wear. In this context, much work has been done with the purpose of improving the coolant jacket design and components

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13

Narri, Vandana. "Performance and Improvement Investigation of Accelerated Temperature Change Test." Thesis, Blekinge Tekniska Högskola, Institutionen för tillämpad signalbehandling, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-16604.

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This thesis is focused on Accelerated Temperature Change Test (ATCT). This test is performed in order to deteriorate and age a product in a faster than natural way. The ATCTs are primarily controlled with four parameters: the temperature range (∆T), ramp rate (RR), dwell time (DT) and number of cycles in test ( . A comprehensive investigation was carried out to analyze the performance and functionality of the cabinet, used for performing ATCT. This was achieved by performing repeated measurements in the empty cabinet with different combinations of temperature range (∆T) and dwell time (DT). Th

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14

Amato, Anthony Dominic. "Energy demand responses to temperature and implications of climatic change." College Park, Md. : University of Maryland, 2004. http://hdl.handle.net/1903/250.

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Thesis (Ph. D.) -- University of Maryland, College Park, 2004.<br>Thesis research directed by: Public Affairs. Title from t.p. of PDF. Includes bibliographical references. Published by UMI Dissertation Services, Ann Arbor, Mich. Also available in paper.

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15

Kuo, Pei-Hsin. "Measurement of Modulus Change with Temperature of Synthetic Track Materials." Fogler Library, University of Maine, 2008. http://www.library.umaine.edu/theses/pdf/KuoPH2008.pdf.

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16

Sakian, Nicholas A. "Seasonal Trends and Variability of Temperature, Precipitation, and Diurnal Temperature Range in U.S. Climate Divisions." The Ohio State University, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=osu1440428134.

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17

Morak, Simone. "Impact of externally forced changes on temperature extremes." Thesis, University of Edinburgh, 2013. http://hdl.handle.net/1842/8246.

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This thesis investigates changes in temperature extremes between 1950-2005, analysing gridded data sets of observations and climate model simulations. It focuses on changes in the frequency of extreme temperatures occurring in single days or over periods of six or more consecutive days. The study aims to quantify the significance of changes in extreme temperature events and answer the following questions. Are external or human-induced forcings together with natural forcings responsible for the observed change in temperature extremes or can these changes be explained due to natural climate vari

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18

Forster, Jack. "Exploring the mechanism of how ectotherms change size with changing temperature." Thesis, Queen Mary, University of London, 2012. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.610932.

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19

Nath, Rupa. "Encapsulation of High Temperature Phase Change Materials for Thermal Energy Storage." Scholar Commons, 2012. http://scholarcommons.usf.edu/etd/4180.

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Thermal energy storage is a major contributor to bridge the gap between energy demand (consumption) and energy production (supply) by concentrating solar power. The utilization of high latent heat storage capability of phase change materials is one of the keys to an efficient way to store thermal energy. However, some of the limitations of the existing technology are the high volumetric expansion and low thermal conductivity of phase change materials (PCMs), low energy density, low operation temperatures and high cost. The present work deals with encapsulated PCM system, which operates at temp

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20

Coenen, Danny. "Interannual lake temperature trends as indicators for climatic change in Florida." [Gainesville, Fla.] : University of Florida, 2005. http://purl.fcla.edu/fcla/etd/UFE0011661.

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21

Tjahjono, Richard. "Correlation Between Nasal Mucosal Temperature Change and Perception of Nasal Patency." Thesis, University of Sydney, 2021. https://hdl.handle.net/2123/25547.

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Introduction – Nasal airway obstruction (NAO) is a common presentation that remains poorly understood. Recent evidence suggests that nasal mucosal temperature change, rather than airflow detection, is the primary determinant of subjective nasal patency. Thus, this study aims to examine the role of nasal mucosal temperature in the perception of nasal patency using computational fluid dynamics (CFD). Methodology – Healthy adult participants were recruited. Participants completed Nasal Obstruction Symptom Evaluation (NOSE) and Visual Analogue Scale (VAS) questionnaires. A temperature probe was

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22

Ferry, Sara Elizabeth. "Experimental simulation of crevice corrosion of a functionally graded composite system of F91 and Fe-12Cr-2Si exposed to high-temperature lead-bismuth eutectic coolant." Thesis, Massachusetts Institute of Technology, 2011. http://hdl.handle.net/1721.1/76934.

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Thesis (S.B.)--Massachusetts Institute of Technology, Dept. of Nuclear Science and Engineering; and, (S.B.)--Massachusetts Institute of Technology, Dept. of Mathematics, 2011.<br>"June 2011." Cataloged from PDF version of thesis.<br>Includes bibliographical references (p. 58-60).<br>In a system in which metal corrosion is of concern to its long-term structural integrity, crevice corrosion can be a significant cause of damage. Small crevices in a metal exposed to a working fluid (such as a reactor's coolant) may be prone to the development of a localized, aggressive reducing environment. If the

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23

Ayinde, OE, M. Munchie, and GB Olatunji. "Effect of climate change on agricultural productivity in Nigeria: A co-integration model approach." Kamla Raj Enterprise, 2011. http://encore.tut.ac.za/iii/cpro/DigitalItemViewPage.external?sp=1000781.

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Climatic fluctuation is putting Nigeria’s agriculture system under serious threat and stress. The study of the effect of climate change on agricultural productivity is critical given its impact in changing livelihood patterns in the country. Descriptive and co-integration analysis are the techniques used to analyze the Time series data used in this work. The finding demonstrates that the rate in agricultural productivity is persistently higher between 1981 and 1995, followed by a much lower growth rate in the 1996–2000 sub period. There was variation in the trend pattern of rainfall. Temperatu

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24

Otto, James. "A Search for Periodic and Quasi-Periodic Patterns in Select Proxy Data with a Goal to Understanding Temperature Variation." Thesis, University of North Texas, 2005. https://digital.library.unt.edu/ark:/67531/metadc849601/.

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In this work over 200 temperature proxy data sets have been analyzed to determine if periodic and or quasi-periodic patterns exist in the data sets. References to the journal articles where data are recorded are provided. Chapter 1 serves an introduction to the problem of temperature determination in providing information on how various proxy data sources are derived. Examples are given of the techniques followed in producing proxy data that predict temperature for each method used. In chapter 2 temperature proxy data spanning the last 4000 years, from 2,000 BCE to 2,000 CE, are analyzed to

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25

Kobashi, Takuro. "Greenland temperature, climate change, and human society during the last 11,600 years." Diss., Connect to a 24 p. preview or request complete full text in PDF format. Access restricted to UC campuses, 2007. http://wwwlib.umi.com/cr/ucsd/fullcit?p3249924.

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Thesis (Ph. D.)--University of California, San Diego, 2007.<br>Title from first page of PDF file (viewed April 4, 2007). Available via ProQuest Digital Dissertations. Vita. Includes bibliographical references.

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26

Butler, Ethan E. "American Maize: Climate Change, Adaptation, and Spatio-Temporal Variation in Temperature Sensitivity." Thesis, Harvard University, 2015. http://nrs.harvard.edu/urn-3:HUL.InstRepos:17463972.

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Agricultural production is vulnerable to climate change. However, this vulnerability can be reduced by adapting food crops to a hotter climate. Many studies have ignored adaptation when quantifying the effect of climate change on crop yield, which has likely overestimated yield losses. Therefore, it is necessary to quantify agriculture's adaptive potential to climate change. Such work is challenging because there are no historical analogues to current or future warming. In place of such a precedent this work explores the varying sensitivity of maize yield to elevated temperatures through a sui

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27

Williams, Amity. "Climate Change in Southwest Australian Shrublands: Response to Altered Rainfall and Temperature." Thesis, Williams, Amity (2014) Climate Change in Southwest Australian Shrublands: Response to Altered Rainfall and Temperature. PhD thesis, Murdoch University, 2014. https://researchrepository.murdoch.edu.au/id/eprint/22954/.

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On-going climate change through the 21st century projects increasingly warmer and drier conditions for Mediterranean-type ecosystems (MTEs), creating threats to species persistence in these biodiversity hotspots. For the highly biodiverse kwongan of southwest Australia, this means a climate shifting towards semi-arid conditions, yet how this unique vegetation type will respond to a novel hotter and drier climate is largely unknown. Therefore, this study examined the effects of altered rainfall and temperature on demographic processes of woody kwongan in post-fire (0 - 3 years since last fire)

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28

Goldstein, Adam J. "Temperature response to 20th century landcover change, and its influence on recent glacier retreat." Access to citation, abstract and download form provided by ProQuest Information and Learning Company; downloadable PDF file, 48 p, 2008. http://proquest.umi.com/pqdweb?did=1597631431&sid=55&Fmt=2&clientId=8331&RQT=309&VName=PQD.

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29

Braganza, Karl 1971. "Climate change detection and attribution using simple global indices." Monash University, School of Mathematical Sciences, 2002. http://arrow.monash.edu.au/hdl/1959.1/7783.

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30

Hooper, Julia Kate. "The effect of temperature change on the New Zealand marine fish, Notolabrus celidotus." Thesis, University of Canterbury. Biological Sciences, 2008. http://hdl.handle.net/10092/2254.

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Physiological responses of the labrid fish Notolabrus celidotus to temperature change, found thermal compensation to be more advanced in cold environmental temperatures compared to warm environmental temperatures. N. celidotus was acclimated for 28 days to 8, 14 and 24ºC and metabolism, ventilatory and circulatory function, condition factor, swimming ability, thermal tolerance and hypoxia tolerance investigated. N. celidotus acclimated to 8ºC almost achieved full thermal compensation, which resulted in, resting and maximum oxygen consumption not being significantly different to 14ºC acclimated

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31

Heinemeyer, Andreas. "Effects of temperature and light on carbon partitioning in the arbuscular mycorrhizal symbiosis." Thesis, University of York, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.288806.

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32

Xu, Zhiwei. "Assessment of temperature effects on childhood pneumonia and diarrhoea." Thesis, Queensland University of Technology, 2015. https://eprints.qut.edu.au/83944/1/Zhiwei_Xu_Thesis.pdf.

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This thesis has identified the high risk areas of childhood pneumonia and diarrhoea in Queensland and quantified the effects of temperature on emergency department visits for childhood pneumonia and diarrhoea. It adds to the increasing evidence about the impacts of climate variability and change on children's health and may have significant implications for developing climate change adaptation strategies and paediatric care policies.

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33

Fowler, Hayley Jane. "The impacts of climatic change and variability on water resources in Yorkshire." Thesis, University of Newcastle Upon Tyne, 2000. http://hdl.handle.net/10443/432.

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Observational evidence and future climate change scenarios suggest an amplification of climatic contrasts across the UK. This is seen most prominently in the marked increase in notable flood events and drought episodes and may profoundly affect water resource systems in vulnerable areas, as exemplified by the 1995 Yorkshire drought. The 1995-96 drought resulted in severe stress to the Yorkshire water supply, necessitating the emergency measure of tanking in water from outside the region, and was caused by an unusual pattern of weather and precipitation. This research is an investigation into b

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34

Pilla, Rachel M. "Lake Temperatures as Sentinel Responses to Climate Change." Miami University / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=miami1443090263.

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35

Dodd, Emma M. A. "Representing the Arctic in global surface temperature time series of recent climate change." Thesis, University of Reading, 2015. http://centaur.reading.ac.uk/45044/.

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The Arctic is an important region in the study of climate change, but monitoring surface temperatures in this region is challenging, particularly in areas covered by sea ice. Here in situ, satellite and reanalysis data were utilised to investigate whether global warming over recent decades could be better estimated by changing the way the Arctic is treated in calculating global mean temperature. The degree of difference arising from using five different techniques, based on existing temperature anomaly dataset techniques, to estimate Arctic SAT anomalies over land and sea ice were investigated

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36

Bai, YanYing. "Distribution of soil temperature regimes and climate change in the Mojave Desert region." Diss., [Riverside, Calif.] : University of California, Riverside, 2009. http://proquest.umi.com/pqdweb?index=0&did=1957301331&SrchMode=2&sid=1&Fmt=2&VInst=PROD&VType=PQD&RQT=309&VName=PQD&TS=1268844053&clientId=48051.

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Thesis (Ph. D.)--University of California, Riverside, 2009.<br>Includes abstract. Available via ProQuest Digital Dissertations. Title from first page of PDF file (viewed March 16, 2010). Includes bibliographical references. Also issued in print.

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37

Otto, James (James Robert). "A Search for Periodic and Quasi-Periodic Patterns in Select Proxy Data with a Goal to Understanding Temperature Variation." Thesis, University of North Texas, 2016. https://digital.library.unt.edu/ark:/67531/metadc849601/.

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In this work over 200 temperature proxy data sets have been analyzed to determine if periodic and or quasi-periodic patterns exist in the data sets. References to the journal articles where data are recorded are provided. Chapter 1 serves an introduction to the problem of temperature determination in providing information on how various proxy data sources are derived. Examples are given of the techniques followed in producing proxy data that predict temperature for each method used. In chapter 2 temperature proxy data spanning the last 4000 years, from 2,000 BCE to 2,000 CE, are analyzed to

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38

Gallie, Nicholas. "The sublime of climate change." Thesis, University of Sussex, 2018. http://sro.sussex.ac.uk/id/eprint/76096/.

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The category 'sublime', when applied to the natural world, has long been associated in Western culture, with extremes of vastness and power. When encountered, that which is deemed sublime, by virtue of these qualities, has the effect of overwhelming the mind, such that it is thrown simultaneously into a state of astonishment, admiration and horror. We are both humbled and elevated by what we behold and momentarily struck dumb, such that, in its Kantian formulation, our appreciation of that which we take to be sublime, granted us through the powers of reason, has the effect of ennobling us, as

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39

Trouet, Valerie, Jan Esper, Paul J. Krusic, et al. "Ranking of tree-ring based temperature reconstructions of the past millennium." PERGAMON-ELSEVIER SCIENCE LTD, 2016. http://hdl.handle.net/10150/621352.

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Tree-ring chronologies are widely used to reconstruct high-to low-frequency variations in growing season temperatures over centuries to millennia. The relevance of these timeseries in large-scale climate reconstructions is often determined by the strength of their correlation against instrumental temperature data. However, this single criterion ignores several important quantitative and qualitative characteristics of tree-ring chronologies. Those characteristics are (i) data homogeneity, (ii) sample replication, (iii) growth coherence, (iv) chronology development, and (v) climate signal includ

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40

Henaghan, Christopher. "Incubation Temperature Effects on Loggerhead (Caretta caretta) and Green (Chelonia mydas) Sea Turtle Hatchling Vigor." Thesis, Florida Atlantic University, 2019. http://pqdtopen.proquest.com/#viewpdf?dispub=13419688.

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<p> Climate change has the potential to expose sea turtle nests to higher temperatures, which may negatively impact sea turtle hatchling vigor. In this study, loggerhead and green hatchlings were sampled from the Boca Raton, Florida beach and via lab incubation, and hatchling vigor was determined. Elevated nest temperatures decreased loggerhead and green turtle hatchling performance and corticosterone levels, with the most significant effects found in hatchlings exposed to maximum incubation temperatures above 35 °C during late development. Lab-incubated loggerhead post-hatchling corticost

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41

Calderas, Lori Michelle. "Effects of Temperature and Precipitation on Giardiasis in Missouri." ScholarWorks, 2017. https://scholarworks.waldenu.edu/dissertations/4048.

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Global Climate Change has empirical evidence to support the idea that CO2 levels may be affecting weather and health, including rates of infectious diseases. The Midwest region of the United States of America has had the highest increase in giardiasis rates in recent years, and Missouri was chosen for this study as a representative state in the Midwest. There is no definitive answer as to why the rates of giardiasis have changed from 2003 - 2013. The Theory of Climate Change was used as the theoretical framework for this study. The purpose of this research was to determine whether temperature,

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42

Sarbeng, Lorenda. "Analysis of Interrelationships between Climate Change and Cotton Yield in Texas High Plains." Thesis, University of North Texas, 2020. https://digital.library.unt.edu/ark:/67531/metadc1703437/.

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The Texas High Plains produces the most substantial amount of cotton in Texas. The region is a semi-arid area with limited precipitation, and it is, therefore, susceptible to climate change. Cotton production in the Texas High Plains is mostly dependent on irrigation to increase yield. The overall goal of this research was to study the interrelationships between climate change and cotton yield using correlation analysis and also to study how climate has changed in the region using trend analysis. A three-decade data (1987-2017) was analyzed to establish the relationship between climate change

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43

Jungqvist, Gunnar. "Effect of climate change on soil temperature and snow dynamics in Swedish boreal forests." Thesis, Uppsala universitet, Institutionen för geovetenskaper, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-202854.

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This thesis has investigated the possibility of improved soil temperature modeling using an updated version of an existing soil temperature model frequently used in catchment scale biogeochemical modeling. Future (2061-2090) snow dynamics and soil temperature was projected using ensemble of bias-corrected regional climate models (RCM). Effects over a north-south gradient of Sweden were analyzed using the four Swedish Integrated Monitoring (IM) catchments as study sites. Model calibration was applied on the study sites using daily observations of soil temperature for 1996-2008. The calibrated m

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44

Gajic, Tijana. "Change in Thermal Metabolic Rate Reaction Norms of Daphnia in Response to Rearing Temperature." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for biologi, 2013. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-23299.

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Temperature is an important environmental factor that affects the distribution of organisms. It affects the biochemical and physiological processes which are the basis of life. The metabolic cold adaptation (MCA) hypothesis predicts an increase in the metabolic rate of ectotherms from cold environments compared with their more temperate counterparts. This hypothesis is one of the most controversial in ecophysiology. MCA is an example of counter gradient variation, a geographical pattern of genotypes where genetic influences on a trait oppose environmental influences. Environmental gradients ar

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45

Inglis, Gordon Neil. "From Greenhouse to Icehouse : reconstructing temperature change during the Eocene using a biomarker approach." Thesis, University of Bristol, 2015. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.685351.

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The most recent transition, from a greenhouse to an icehouse climate state, occurred during the Eocene-Oligocene transition (~34 Ma) and is thought to have been driven by a long-term decline in carbon dioxide concentrations and/or changes in ocean heat redistribution as a result of tectonic gateway reorganisation. In order to determine the primary driving mechanisms responsible, this thesis reconstructs long-term terrestrial and marine temperature change during the Eocene (56.0-33.9 Ma) using an organic biomarker approach. During the descent towards the icehouse (48-34 Ma), high-latitudes (>55

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PARANUNZIO, ROBERTA. "Statistical inference of the relations among air temperature, land-use change, and rockfall hazard." Doctoral thesis, Politecnico di Torino, 2017. http://hdl.handle.net/11583/2675019.

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Climate change has widespread impacts on human and natural systems worldwide. The pronounced air temperature warming detected worldwide could explain unusual events, as for example the increment of extreme precipitation events, increased incidence of summer heatwaves and slope instability. The possible presence of non-climatic forcings affecting temperature records, as for example land-use and land-cover changes, could introduce significant bias in the records and uncertainty on global overall temperature trends. This could somehow alterate, on the one hand, the perception of global warming, a

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Menthon, Maxence, and Migom Léa Van. "Reducing energy consumption of refrigerators byusing the outside temperature." Thesis, Högskolan Dalarna, Energiteknik, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:du-28241.

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Nowadays, many electrical appliances are used daily. The refrigerator is one of them. Consequently, by affecting the energy used by the refrigerator, a huge amount of energy, greenhouse gases (GHG) emissions and money can be saved. It is what this thesis tries to do by applying a concept: using the cold from outside. Indeed, this report exposes the process to answer the following question: How much energy, GHG emissions and money can be saved by using the cold from outside on the refrigerating appliances? To do so, measurements have been done on a refrigerator placed in a climate chamber. The

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Gomez-Jacobo, Mercedes Lissette. "ASSESSING EQUIVALENT TEMPERATURE TRENDS IN MAJOR EASTERN US CITIES." OpenSIUC, 2017. https://opensiuc.lib.siu.edu/theses/2236.

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Summer (JJA) temperature (T) and equivalent temperature (TE) for 18 of the largest cities in the eastern United States are investigated for two time periods: 1948-2014 and 1973-2014. Because temperature provides an incomplete description of lower tropospheric heat content, we supplement with TE, which also accounts for the energy associated with moisture. An auxiliary investigation using air mass data from the Spatial Synoptic Classification (SSC) augments the investigation of T and TE trends. The trend analysis revealed significant trends in Tmin at all stations over the 67-year time period a

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Hill, Spencer Alan. "Energetic and hydrological responses of Hadley circulations and the African Sahel to sea surface temperature perturbations." Thesis, Princeton University, 2016. http://pqdtopen.proquest.com/#viewpdf?dispub=10167545.

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<p> Tropical precipitation is linked through the moist static energy (MSE) budget to the global distribution of sea surface temperatures (SSTs), and large deviations from the present-day SST distribution have been inferred for past climates and projected for global warming. We use idealized SST perturbation experiments in multiple atmospheric general circulation models (AGCMs) to examine the hydrologic and energetic responses in the zonal mean and in the African Sahel to SST perturbations. We also use observational data to assess the prospects for emergent constraints on future rainfall in the

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Mikael, Danielsson. "Cyanobacterial populations in Lake Hjorten and Lake Vångaren depending on increased temperature." Thesis, Linköpings universitet, Institutionen för fysik, kemi och biologi, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-130201.

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Västervik Municipality has had problems with odorous compounds in its primary water source, Lake Hjorten. Geosmin and cyanobacterial blooms have been detected in the lake. This report aims to experimentally investigate the cyanobacterial populations in the primary and secondary freshwater lakes depending on the climate change factor temperature. An understanding of number of cells is the foundation to understand the potential harmful chemical levels. This provides an opportunity to predict the water quality in the lakes in the future due to climate change. The results show that cyanobacteria d

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