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Dissertations / Theses on the topic 'Relative humidity'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Pretlove, Stephen Edward Charles. "Predicting relative humidity in UK dwellings." Thesis, University College London (University of London), 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.555004.

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Mould growth affects a significant proportion of dwellings in the UK and Europe. The house dust mite is also known to inhabit most dwellings and is one of the key factors affecting the health of the occupants. One of the key variables affecting mould growth and house dust mite populations is relative humidity. The relative humidity in a dwelling is dependent upon both the moisture levels and the temperature. The ability to assess the impact of different interventions on the relative humidity depends upon the ability to model both the internal temperature and the internal vapour pressure. This

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2

Bellmann, C., A. Steinke, T. Frank, and G. Gerlach. "Humidity micro switch based on humidity-sensitive polymers." SPIE, 2015. https://tud.qucosa.de/id/qucosa%3A35030.

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We present recent results on a binary threshold sensor based on the binary zero-power sensor (BIZEPS) platform which is able to use the energy provided directly from the measured relative humidity of the ambient air to mechanically switch an electrical micro contact. This zero-power switch behavior is realized by using the humidity-sensitive volume swelling of a polymer layer as the detection element deflecting a mechanically deformable silicon boss structure, thus closing the electrical contacts of the switch. For the humidity-sensitive sensor switch considered here, a humidity-sensitive hydr

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3

McCarthy, Mark Paul. "Observed variability of tropical tropospheric relative humidity." Thesis, Imperial College London, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.419846.

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4

Tyrell, James W. G. "The influence of relative humidity on interparticle force." Thesis, University of Surrey, 1999. http://epubs.surrey.ac.uk/844097/.

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Forces acting between individual grains in a powder can have a critical and controlling effect on powder bulk behaviour. Operations such as powder flow, fluidisation, compaction, agglomeration and mixing are all influenced significantly by the intensity of interparticle forces. This is especially true when the particle size falls below around 100 mum at which point the surface forces outweigh the force due to gravity acting on a single particle. Studies of cohesion using bulk powder samples are of limited use because it is difficult to decouple the fundamental mechanisms of interparticle force

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5

Newnum, Justin Dale. "The effects of relative humidity on respirator performance." Thesis, University of Iowa, 2010. https://ir.uiowa.edu/etd/861.

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6

Švarc, Vojtěch. "Stínící efekt oxidové izolační vrstvy na povrchový potenciál měřený pomocí Kelvinovy sondové mikroskopie." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2015. http://www.nusl.cz/ntk/nusl-231956.

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The diploma thesis deals with the experimental study of shielding effect of oxide isolating layer on surface potential measured by Kelvin Probe Force Microscopy. For the study of surface potential were created Au/SiO2 based nanostructures by Electron Beam Lithography, Atomic Layer Deposition and Multilayer Deposition. Surface potential was measured depending on the relative humidity and thickness of oxide isolating layer.

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7

Zhang, Qing. "Creep properties of cementitious materials : effect of water and microstructure : An approach by microindentation." Phd thesis, Université Paris-Est, 2014. http://pastel.archives-ouvertes.fr/pastel-00996571.

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Cementitious materials such as concrete, cement and gypsum are widely used in construction, as the raw materials of which they are made are abundant on Earth. Such trend is unlikely to change in the coming decades. But these materials suffer from creep. The creep of cementitious materials is a complex issue. On one hand, in cementitious materials creep is often coupled with other phenomena such as drying, hydration and cracking, and can be influenced by various parameters such as temperature, level of stress, water content and mix design. On the other hand, measuring creep by traditional macro

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8

Guo, William X. "Influence of relative humidity on the stress relaxation of sucrose compacts." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp03/MQ51526.pdf.

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9

Gurnagul, N. (Norayr). "Some effects of relative humidity on the porous structure of paper." Thesis, McGill University, 1985. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=74013.

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10

Mooney, J. P. "The effect of relative humidity on mycotoxin production by Penicillium viridicum." Thesis, University of Strathclyde, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.382428.

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11

Smith, Megan Schwenker. "An Investigation into CaDNA Conformation as a Function of Relative Humidity." University of Toledo / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1279122399.

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12

Aung, Tin. "Effect of relative humidity on peanut (Arachis hypogaea L.) seed deterioration /." The Ohio State University, 1991. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487687959966447.

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13

Talbot, Collin. "Effects of relative humidity on the fluorescence of uranine (disodium fluorescein)." Oklahoma City : [s.n.], 2009.

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14

Mooiweer, Wiesje. "The dependence of aerosol scattering on relative humidity and particulate composition." Laramie, Wyo. : University of Wyoming, 2008. http://proquest.umi.com/pqdweb?did=1798481061&sid=1&Fmt=2&clientId=18949&RQT=309&VName=PQD.

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15

Johari, Houri. "Development of MEMS Sensors for Measurements of Pressure, Relative Humidity, and Temperature." Digital WPI, 2003. https://digitalcommons.wpi.edu/etd-theses/815.

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Continued demands for better control of the operating conditions of structures and processes have led to the need for better means of measuring temperature (T), pressure (P), and relative humidity (RH). One way to satisfy this need is to use MEMS technology to develop a sensor that will contain, in a single package, capabilities to simultaneously measure T, P, and RH of its environment. Because of the advantages of MEMS technology, which include small size, low power, very high precision, and low cost, it was selected for use in this thesis. Although MEMS sensors that individually measure T

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16

Costa, Junior Juvenil Severino da. "Sensor de umidade microeletrônico fabricado em substrato de alumina e baseado na detecção do ponto de orvalho." [s.n.], 2011. http://repositorio.unicamp.br/jspui/handle/REPOSIP/259033.

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Orientador: Fabiano Fruett<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Elétrica e de Computação<br>Made available in DSpace on 2018-08-17T21:03:29Z (GMT). No. of bitstreams: 1 CostaJunior_JuvenilSeverinoda_M.pdf: 3663986 bytes, checksum: 04fada688bb589e761d7e3d0f1bc7715 (MD5) Previous issue date: 2011<br>Resumo: Sensores de umidade relativa do ar estão sendo cada vez mais utilizados em sistemas de controle e aquisição de dados. Estes sensores são facilmente encontrados em estufas, automóveis, refrigeradores, equipamentos médicos, eletrodomésticos, i

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Gouveia, Rubia Figueredo. "Padrões eletrostaticos em uma superficie de silica : um modelo para o acumulo de cargas eletricas em isolantes." [s.n.], 2005. http://repositorio.unicamp.br/jspui/handle/REPOSIP/250289.

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Orientador: Fernando Galembeck<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Instituto de Quimica<br>Made available in DSpace on 2018-08-05T15:23:30Z (GMT). No. of bitstreams: 1 Gouveia_RubiaFigueredo_M.pdf: 1322724 bytes, checksum: 354ae5145ed6ce8d69bae986b50bda01 (MD5) Previous issue date: 2005<br>Resumo: Atualmente muitas tecnologias importantes são baseadas nos princípios eletrostáticos, como por exemplo, a pintura eletrostática, a reciclagem de termoplásticos e a eletrofotografia. No entanto, mesmo considerando todo o desenvolvimento da eletrostática, ainda existem muit

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Poderoso, Fabiana Maria Gonçalves de Lima. "Impacto do ambiente do incubatório na produção de pintos de corte." [s.n.], 2011. http://repositorio.unicamp.br/jspui/handle/REPOSIP/256837.

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Orientador: Irenilza de Alencar Nääs, Marta dos Santos Baracho<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Agrícola<br>Made available in DSpace on 2018-08-20T11:48:14Z (GMT). No. of bitstreams: 1 Poderoso_FabianaMariaGoncalvesdeLima_M.pdf: 1087757 bytes, checksum: 1db07cd336e1192d99ffb8537b7a5e02 (MD5) Previous issue date: 2011<br>Resumo: No Brasil, a avicultura é uma atividade relativamente nova, apesar de ter seu início na década de 30, como atividade fornecedora de subproduto, o esterco para os cafezais, se tornando uma atividade econômica produt

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19

Smolinski, Steven P. "Marine boundary layer depth and relative humidity estimates using multispectral satellite measurements." Thesis, Monterey, California. Naval Postgraduate School, 1988. http://hdl.handle.net/10945/23069.

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A technique is presented to estimate surface relative humidity and boundary layer depth from multispectral satellite measurements using the AVHRR sensor on TIROS-N generation satellites. A sensitivity study quantifies the effect of a combination of input measurement errors of sea-surface temperature, optical depth and total water vapor used in the technique to produce outputs of surface relative humidity and boundary layer depth under simulated conditions and model atmospheres. Technique verification is then accomplished with satellite data compared to ship and aircraft vertical soundings and

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20

Thai, Minh Quan. "Modélisation micromécanique et simulation numérique du fluage des bétons avec prise en compte de l'endommagement et des effets thermo-hydriques." Phd thesis, Université Paris-Est, 2012. http://tel.archives-ouvertes.fr/tel-00788439.

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Le béton est un matériau hétérogène complexe dont les déformations comportent une partie différée qui est affectée par un grand nombre de facteurs tels que la température, l'humidité relative et l'évolution de la microstructure. La prise en compte des déformations différées et en particulier du fluage est indispensable dans le calcul des ouvrages en béton tels que ceux destinés à stocker des déchets radioactifs. Ce travail de thèse a pour objectifs : (1) de développer un modèle de fluage simple et robuste pour le béton en faisant appel à la micromécanique et en tenant compte de l'endommagement

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21

Jacquot, Bruno. "Etanchéité des matériaux pour obturations radiculaires et coronaires en odontologie : approche physico-chimique." Thesis, Montpellier 1, 2011. http://www.theses.fr/2011MON12201/document.

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Ce travail de thèse est scindé en 4 parties. La première partie est une approche originale en odontologie par modélisation de la pénétration de colorants à l'interface des matériaux pour obturation radiculaire. Les deux situations extrêmes ont été envisagées. Lorsque l'interface est remplie uniquement par de l'air à pression atmosphérique, la pénétration s'effectue par capillarité. Lorsque l'interface est remplie d'eau, la pénétration s'effectue par diffusion. Les différentes équations physiques qui régissent ces phénomènes ont été déterminées. Les différents paramètres d'influence ont été qua

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22

Lee, Lizabeth. "Monitoring of Indoor Relative Humidity Levels in Residential Dwellings: A Sensor Network Application." DigitalCommons@USU, 2008. https://digitalcommons.usu.edu/etd/270.

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Indoor Air Quality is an increasing concern in the world today. The mere presence of people in a building or residence can signiﬁcantly alter indoor air quality. Relative humidity over the range of normal indoor temperatures (66 - 80 degrees Farenheit) has been linked both directly and indirectly to various health and structural problems. The purpose of this project was to discover whether residential dwellings might beneﬁt from an indoor humidiﬁcation system. The project consisted of the deployment of three separate sensor networks consisting of 12 tmote sky modules manufactured by the Moteiv

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23

Watson, David William. "Monitoring moisture movement within modified concretes." Thesis, Heriot-Watt University, 1997. http://hdl.handle.net/10399/641.

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24

Fan, Mizi. "Dimensional instability of cement bonded particleboard : understanding its occurrence and reducing its magnitude." Thesis, Bangor University, 1997. https://research.bangor.ac.uk/portal/en/theses/dimensional-instability-of-cement-bonded-particleboard--understanding-its-occurrence-and-reducing-its-magnitude(ce649ec2-90ed-4914-8412-4af2e67e749f).html.

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25

Tapias, Camacho Mauricio Alberto. "Particle model for crushable aggregates which includes size, time and relative humidity effects." Doctoral thesis, Universitat Politècnica de Catalunya, 2016. http://hdl.handle.net/10803/404622.

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This thesis presents a study of the mechanical behaviour of coarse-crushable aggregates, using the discrete element method (DEM). A novel DEM model has been developed taking into account particle breakage, the influence of the relative humidity, time-dependent behaviour and the effect of particle size. A criterion of particle breakage has been proposed based in fracture mechanics and the theory of subcritical crack propagation. Three theoretical models for the crack propagation are proposed taking into account the relative humidity. Pyramidal macroparticles, which behave like clumps and can

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26

Mamo, Bayou Million. "The effect of natural fencerows on local standardized windspeed, temperature and relative humidity." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/tape16/PQDD_0019/MQ29455.pdf.

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27

Willard, Eric Hillman Tharsing. "Temperature and relative humidity gradients of intermittent and perennial tributaries in Northern California." [Chico, Calif. : California State University, Chico], 2009. http://hdl.handle.net/10211.4/108.

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28

NiaziEsfyani, Sadegh. "The role of relative humidity and aerosol composition in airborne respiratory virus survival." Thesis, Queensland University of Technology, 2021. https://eprints.qut.edu.au/214025/1/Sadegh_NiaziEsfyani_Thesis.pdf.

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This thesis presents and tests a novel hypothesis that attempts to predict the relative humidity (RH) dependent survival of airborne respiratory viruses in protein-enriched saline aerosols. The hypothesis proposed that virus-laden respiratory aerosols exist in either an effloresced (solid) or deliquesced (liquid) state, depending on the ambient air RH and that the survival of viruses embedded in such aerosols changes with that state. Experiments confirmed as predicted, that rhinovirus and influenza virus exhibited a V-shaped surviving fraction dependence on RH. Implications concerning the surv

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29

Godoy, Charlotte. "Filtration d’aérosols de suie en présence de vapeur et/ou de gouttelettes d’eau." Electronic Thesis or Diss., Université de Lorraine, 2019. http://www.theses.fr/2019LORR0287.

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L'épuration de l'air contaminé par les particules générées par de nombreux procédés industriels fait le plus souvent appel à la filtration au moyen de médias filtrants. Ces équipements collectifs de protection des personnes et de l’environnement sont éprouvés en termes d’efficacité initiale mais leur comportement au cours du temps reste difficilement prévisible. Ce constat est d’autant plus vrai lorsque ces dispositifs sont confrontés à un aérosol diphasique constitué de particules solides et liquides. Ces situations peuvent notamment être rencontrées lors de l’usinage de métaux, l’épandage de

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Wright, Jonathon S. "Influences of Tropical Deep Convection on Upper Tropospheric Humidity." Diss., Georgia Institute of Technology, 2006. http://hdl.handle.net/1853/11573.

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31

Tabor, Kimberly Lane. "Succession and Development Studies on Carrion Insects of Forensic Importance." Diss., Virginia Tech, 2004. http://hdl.handle.net/10919/11188.

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Forensic entomological field and laboratory studies were conducted to obtain data currently missing or conflicting in the literature. The first goal of this project was to identify and qualitatively assess the major taxa of forensic importance in southwest Virginia. Carcasses of the domestic pig, Sus scrofa L., were placed in field conditions and allowed to decompose until they reached the advanced stage of decay. Over 50 taxa were collected and identified, with Phormia regina, Phaenicia coeruleiviridis, Phaenicia sericata, Calliphora spp., Sarcophaga utilis, Musca domestica, Hydrotaea leuc

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32

Ozsan, Burcu. "Effect Of Relative Humidity Of Reactant Gases On Proton Exchange Membrane Fuel Cell Performance." Master's thesis, METU, 2012. http://etd.lib.metu.edu.tr/upload/12614375/index.pdf.

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Fuel cells are expected to play a major role in the economy of this century and for the foreseeable future. The use of hydrogen and fuel cells can address critical challenges in all energy sectors like commercial, residential, industrial, and transportation. Fuel cells are electrochemical devices that convert energy of a chemical reaction directly into electrical energy by combining hydrogen fuel with oxygen from air. If hydrogen is used as fuel, only byproducts are heat and water. The objective of this thesis is to investigate the effect of operating temperature and relative humidity (RH) of

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33

Bell, Ryan D. "Impact of Relative Humidity on the Biology of Pardosa milvina Hentz, 1844 (Araneae: Lycosidae)." The Ohio State University, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=osu1243917682.

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34

Quaas, Johannes. "Evaluating the “critical relative humidity” as a measure of subgrid-scale variability of humidity in general circulation model cloud cover parameterizations using satellite data." Universitätsbibliothek Leipzig, 2015. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-177265.

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A simple way to diagnose fractional cloud cover in general circulation models is to relate it to the simulated relative humidity, and allowing for fractional cloud cover above a “critical relative humidity” of less than 100%. In the formulation chosen here, this is equivalent to assuming a uniform “top-hat” distribution of subgrid-scale total water content with a variance related to saturation. Critical relative humidity has frequently been treated as a “tunable” constant, yet it is an observable. Here, this parameter, and its spatial distribution, is examined from Atmospheric Infrared Sounder

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35

Chovanec, Jan. "Meteorologická měření." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2008. http://www.nusl.cz/ntk/nusl-217479.

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The achievement of this thesis is to design functional equipment which is able to measure the basic meteorological variables as air temperature, humidity and barometric pressure. In order to measure relative humidity completed with temperature, an intelligent sensor manufactured by Intersema Inc., MS5534B, was chosen. Relative humidity is measured by a capacitance sensor Humirel HS1101LF. The measured data are stored in anon-volatile memory. Data can be downloaded to a computer file via serial port or they can be online displayed on the computer screen via the wireless Bluetooth connection. Be

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36

Irvine, Douglas A. "Control of temperature, relative humidity and carbon dioxide for reduced ventilation in commercial potato storages." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/mq23352.pdf.

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Altaf, Kazim. "Investigation of the effect of relative humidity on additive manufactured polymers by depth sensing indentation." Thesis, Loughborough University, 2011. https://dspace.lboro.ac.uk/2134/8567.

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Additive manufacturing methods have been developed from rapid prototyping techniques and are now being considered as alternatives to conventional techniques of manufacturing. Stereolithography is one of the main additive methods and is considered highly accurate and consistent. Polymers are used as stereolithography materials and exhibit features such as high strength-to-weight ratio, corrosion resistance, ease of manufacturing and good thermal and electrical resistance properties. However, they are sensitive to environmental factors such as temperature, moisture and UV light, with moisture be

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38

Vohra, Amit. "Photocatalytic disinfection of indoor air effect of relative humidity and surface roughness of photocatalytic reactor /." [Gainesville, Fla.] : University of Florida, 2005. http://purl.fcla.edu/fcla/etd/UFE0013032.

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Weeks, Brian, and Paul Baker. "Survivability of the Subterranean Termite Heterotermes aureus When Exposed to Different Temperatures and Relative Humidity." College of Agriculture and Life Sciences, University of Arizona (Tucson, AZ), 2006. http://hdl.handle.net/10150/216629.

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Survivability of Heterotermes aureus (Snyder) was tested under varying temperature and relative humidity regimes in laboratory incubators over seven day periods. Initial tests showed that RH had a strong influence on H. aureus survival. Survival was significantly higher (P<.05) at 90% RH than 50% RH when held at a constant temperature of 29.4°C. Four temperatures were tested at a constant RH of 90%. Survival was highest at temperatures of 19.4°C (91.8%) and 21.1°C (97.3%). Survival was significantly lower for the higher ranger temperatures of 29.4°C (91.2%) and 32.2°C (69.2%).

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Ribeyre, Quentin. "Influence de l'humidité de l'air sur la perte de charge d'un dépôt nanostructuré." Thesis, Université de Lorraine, 2015. http://www.theses.fr/2015LORR0056/document.

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Dans l’industrie, des systèmes de protection collectifs doivent être mis en œuvre pour protéger aussi bien les travailleurs que l’environnement. Des filtres à fibres sont généralement disposés dans les circuits de ventilation générale pour capter ces particules en suspension dans l’air. Les performances de ces media fibreux en termes d’efficacité de collecte et consommation énergétique sont relativement bien documentées lors de leur fonctionnement dans des conditions standards (humidité et température ambiantes). Cependant, peu d’études s’intéressent à l’interaction de l’humidité de l’air avec

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Cardona, Allison Leanne. "The frequency of tropopause-level thick and thin cirrus clouds as observed by CALIPSO and the relationship to relative humidity and outgoing longwave radiation." Texas A&M University, 2008. http://hdl.handle.net/1969.1/85992.

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Thin cirrus clouds play an important radiative role in the earth's atmosphere and climate system, yet are one of the least understood components of the climate system. With the use of data from Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observations (CALIPSO), thin cirrus and thick cloud distributions in the tropics are analyzed at 121, 100, and 82 hPa. Observations obtained between December 2006 and November 2007 show that thin cirrus between 30°N and 30°S occur in close proximity to regions of intense convection and are positively correlated with low values of outgoing longwave ra

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Santos, Helena Paula Aguiar Vicente dos. "Espectro de esporos de fungos alergisantes na atmosfera de Lisboa." Master's thesis, ISA/UTL, 2011. http://hdl.handle.net/10400.5/4103.

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Mestrado em Engenharia Florestal e dos Recursos Naturais - Instituto Superior de Agronomia<br>Spectrum of allergenic fungal spores in the atmosphere of Lisbon Outdoor airborne fungal spores may cause respiratory allergic diseases in humans. The genera Alternaria and Cladosporium are referred by several authors as the most common and prevalent allergenic fungi distributed in atmosphere. Monitoring of these fungi and the knowledge on the influence of climate on their distribution and abundance are important contributions to the elaboration of calendars of occurrence. The present work aimed at a

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Larish, Whitney Anne. "Heterogeneous reaction and kinetics of acetic acid on components of mineral dust aerosol." Thesis, University of Iowa, 2014. https://ir.uiowa.edu/etd/1351.

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44

Jonquille, Jenny. "Développement de couches de diffusion de piles PEMFC pour un fonctionnement à faible humidité relative." Phd thesis, Université de Grenoble, 2011. http://tel.archives-ouvertes.fr/tel-00631359.

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Afin de favoriser la commercialisation à grande échelle des piles à combustible PEMFC, de nombreuses études sont menées dans le but de réduire les coûts et d'augmenter la durée de vie tout en améliorant les performances et de comprendre les phénomènes physiques mis en jeu. Cette étude se concentre sur le développement de couches de diffusion pour un fonctionnement à faible humidité relative, en particulier sur l'influence de la structure du support de diffusion sur les performances. Grâce à un procédé de fabrication différent de ceux utilisés pour les produits actuellement commercialisés, la s

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Schladitz, Alexander. "Parametrization of relative humidity- and wavelength-dependent optical properties of mixed Saharan dust and marine aerosol." Doctoral thesis, Universitätsbibliothek Leipzig, 2011. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-70494.

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Aerosol particles interact with sunlight through scattering and absorption and have therefore a direct radiative effect. Hygroscopic aerosol particles take up water and are able to grow in size below 100% relative humidity, which involves the change of optical properties and the direct radiative effect. The change of aerosol optical properties for aerosol mixtures under humidification is presently not well understood, especially for the largest particle sources worldwide. The present PhD-thesis quantifies wavelength- and humidity-dependent aerosol optical properties for a mixture of Saharan mi

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Crimm, Robert Prentiss. "Experimental apparatus for measuring moisture transfer in porous materials subject to relative humidity and temperature differences." Thesis, This resource online, 1992. http://scholar.lib.vt.edu/theses/available/etd-01122010-020146/.

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Marks, Marguerite Colasurdo. "Incorporating Chemical Activity and Relative Humidity Effects in Regional Air Quality Modeling of Organic Aerosol Formation." PDXScholar, 2013. https://pdxscholar.library.pdx.edu/open_access_etds/1511.

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Atmospheric particulate matter is known to have significant effects on human health, visibility, and global climate. The magnitudes of these effects, however, depend in complex ways on chemical composition, relative humidity, temperature, phase state, and other parameters. Current regional air quality models such as CMAQ (Community Multiscale Air Quality model) ignore many of these considerations, and consider that the formation of secondary organic aerosol (SOA) can be calculated by assuming thermodynamic ideality in the organic particulate matter (OPM) phase as well as negligible uptake of w

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Testa, F. "INFLUENCE OF ATMOSPHERIC TEMPERATURE AND RELATIVE HUMIDITY ON BULK MILK SOMATIC CELL COUNT IN DAIRY HERDS." Doctoral thesis, Università degli Studi di Milano, 2012. http://hdl.handle.net/2434/168080.

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The production loss and health issues due to the presence of high bulk milk tank somatic cell count in dairy herds makes it essential to implement a consistent effort to maintain this indicator at levels below those required by law. For veterinary practitioners, providing evidence-based advice to clients in order to reduce risk factors of increasing somatic cell count is a difficult task. Statistical Process Control tools allow to verify with statistical certainty when process performance is improving, staying the same, or getting worse and they can be used in dairy farms. The main purpose of

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Domenegueti, José Francisco Miras. "Sensor de umidade e vácuo baseado na reflexão interna." Universidade de São Paulo, 2014. http://www.teses.usp.br/teses/disponiveis/76/76131/tde-09092014-113655/.

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No presente trabalho propomos a utilização de uma técnica refratométrica baseada na determinação do ângulo crítico para o desenvolvimento de um sensor de umidade relativa e, no mesmo escopo de aplicação, um medidor de vácuo primário. A técnica proposta tira vantagem da diferença de fase adquirida pelas componentes paralela e perpendicular de um feixe luminoso, linearmente polarizado, passando por reflexão interna, para produzir um laser de HeNe sintonizável, um polarizador, um prisma semicilíndrico de índice de refração conhecido fabricado em vidro tipo flint, um analisador, um mínimo de inten

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Junior, Sergio Serafini. "O microclima de uma vereda degradada: estudo de caso no Parque Estadual Veredas do Peruaçu - MG." Universidade de São Paulo, 2010. http://www.teses.usp.br/teses/disponiveis/8/8135/tde-08102010-110002/.

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O Bioma Cerrado, ao longo da história de ocupação pelo homem, vem sendo explorado em detrimento da redução de sua biodiversidade. Dentre as várias características típicas da vegetação do cerrado, nesta tese, um maior destaque é dado às veredas que se alinham ao sistema hidrográfico acompanhando seu traçado e formando um corredor de cobertura vegetal de porte arbóreo, muito utilizado pela fauna local como fonte de alimentação, reprodução e abrigo, favorecendo o fluxo gênico local, como parte do processo natural de manutenção dos ecossistemas ali presente formadores do Bioma Cerrado. Em vista da

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