Tesis sobre el tema "VOC measurement"
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Ibrahim, Najib Bin. "Development of the methodology for the measurement of the indoor pollutants in problem-solving research : as applied to the assessment of health hazards in office buildings". Thesis, University College London (University of London), 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.321750.
Texto completoKHAN, BILAL ALAM. "Measurement methods of Gas-Solid Interactions". Doctoral thesis, Politecnico di Torino, 2021. http://hdl.handle.net/11583/2942142.
Texto completoBlenkhorn, Daniel John. "Novel approaches to the measurement of complex atmospheric VOC mixtures using proton transfer reaction mass spectrometry". Thesis, University of Birmingham, 2019. http://etheses.bham.ac.uk//id/eprint/8695/.
Texto completoMoore, Tim Orland II. "Application of a Mobile Flux Lab for the Atmospheric Measurement of Emissions (FLAME)". Diss., Virginia Tech, 2009. http://hdl.handle.net/10919/29046.
Texto completoPh. D.
Jiang, Mei. "Mobile Laboratory Measurement of Black Carbon, Particulate Polycyclic Aromatic Hydrocarbons and Other Exhaust Emissions in Mexico City". Thesis, Virginia Tech, 2005. http://hdl.handle.net/10919/41133.
Texto completoMaster of Science
Baudic, Alexia. "Caractérisation expérimentale et statistique des sources de Composés Organiques Volatils (COV) en région Île-de-France". Thesis, Université Paris-Saclay (ComUE), 2016. http://www.theses.fr/2016SACLS537/document.
Texto completoVolatile organic compounds (VOCs) play a key role within the atmospheric system acting as precursors of ground-level ozone and secondary organic aerosols (causing health and climatic impacts); hence the growing interest of better characterizing them. Significant uncertainties are still associated with compounds speciation, quantification and respective contributions from the different emission sources.This thesis proposes, through several laboratory and intensive field campaigns, a detailed characterization of VOCs and their main emissions sources within the Île-de-France region. We used methods based on the determination of speciation profiles indicative of road traffic, wood burning and natural gas sources obtained from near-field investigations (inside a tunnel, at a fireplace and from a domestic gas flue). These different source profiles were used as chemical fingerprints for the identification of the main VOC emission sources, which respective contributions were estimated using the Positive Matrix Factorization (PMF) source-receptor model applied to one-year VOCs (including NMHC+OVOC) measurements in Paris. This thesis allowed, for the first time, to evaluate the seasonal variability of VOCs and their main emission sources. Road traffic-related emissions are major VOC local/regional sources in Paris (contributing to a quarter of total annual emissions). The important impact of wood burning in winter (50 % of the VOC total mass) was observed. Results obtained from this approach were compared with the regional emissions inventory provided by the air quality monitoring network Airparif. Finally, a good agreement was found between our observations and the inventory for road traffic and wood burning-related sources.This independent assessment of inventories is of great interest because they are currently used as input data within air quality prediction models
Allam, Nadine. "Estimation des émissions surfaciques du biogaz dans une installation de stockage des déchets non dangereux". Thesis, Nantes, Ecole des Mines, 2015. http://www.theses.fr/2015EMNA0187/document.
Texto completoLandfill sites produce biogas by degradation of biodegradable organic matter. Biogas mainly composed of CH4 and CO2 represents a major environmental challenge. This study propose a method to estimate biogas surface emissions in landfill sites using atmospheric dispersion modeling of a tracer gas, in this case, methane. The spatial and temporal dynamics of CH4 and VOC concentrations have been followed on the studied landfill site (Séché Environnement) for several weather conditions. Measurement results show low atmospheric VOC and CH4 concentrations on the studied landfill site which validates low emissions of these compounds. Detected VOC are emitted by different sources, excluding the landfill site. The contribution of these sources on VOC concentrations is more important than that of the landfill site and no VOC could be identified as tracer of biogas emitted by landfill site. However, CH4 is emitted by the landfill site, its principal source. Two methods are proposed to estimate methane surface emissions using a Gaussian atmospheric dispersion model ADMS. Gaussian model is validated by comparison of the temporal dynamics and atmospheric concentrations of methane measured on the site and those modeled. The first method is based on an inverse approach and the second one is a statistical regression approach. CH4 emissions are estimated for the exposure period of the laser diode to the site emissions and for 4 weather scenarios identified by a hierarchical classification. Results validate the influence of meteorological parameters, especially the stability of the atmosphere, on the atmospheric dispersion and methane surface emissions
Shim, Changsub. "Constraining global biogenic emissions and exploring source contributions to tropospheric ozone modeling applications /". Diss., Available online, Georgia Institute of Technology, 2006, 2006. http://etd.gatech.edu/theses/available/etd-06222006-060856/.
Texto completoWang Yuhang, Committee Chair ; Cunnold Derek, Committee Member ; Weber Rodney, Committee Member ; Nenes Athanasios, Committee Member ; Guillas Serge, Committee Member.
Fortner, Edward Charles. "Airborne and ground based measurements of volatile organic compounds using proton transfer reaction mass spectrometry in Texas and Mexico City". [College Station, Tex. : Texas A&M University, 2006. http://hdl.handle.net/1969.1/ETD-TAMU-1040.
Texto completoParris, R. "Intrinsically valid VOC measurements systems : concept to application". Thesis, University of Manchester, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.528440.
Texto completoLopes, Marcelo Luiz Araujo. "Avaliação ambiental de compostos orgânicos voláteis (VOC) provenientes da queima da cana-de-açúcar". Universidade de São Paulo, 2010. http://www.teses.usp.br/teses/disponiveis/46/46133/tde-21072010-091151/.
Texto completoBiomass burning is an activity widely practiced in many tropical developing countries. This activity has implications at regional and global scales due to the emissions of significant quantities of trace gases to the atmosphere such as CO, non-methane hydrocarbons (NMHC) and particulate matter (PM). The sugar cane residues represent 11% of worldwide production of agricultural residues whose burning releases significant amounts of gases and particles that influence the atmospheric chemistry. In the last years, in Brazil, there has been an increase of the use of the ethanol as fuel and an increase of the sugar cane plantations in the State of São Paulo. Although the sugar cane burning prohibition, burning episodes are still very frequent, as 50% of the sugar cane plantations of São Paulo are burned in the the pre-harvest stage. The aim of this study was to evaluate VOC emissions of sugar cane burning. In order to estimate the environmental impact caused by the combustion process in urban regions near fires laboratory and field studies were conducted. The contribution of biogenic carbonyl compounds in the area of sugar cane was evaluated and results showed that the cane sugar leaves, in the most of the experiments, do not act as emission source. Laboratory experiments were carried out to determine incomplete combustion products in plume. Measurements of CO, CO2, and VOC were characterized by the emission ratio (ER) and emission factor (EF). Mixture ratio, in ppbv, of formaldehyde (175 - 309), acetaldehyde (2 - 71), acetone (1 - 36), acrolein (0,3 - 3), propionaldehyde (0,2 - 10), crotonaldehyde (3 -10), butyraldehyde (1 - 3), benzaldehyde (0,5 - 6), valeraldehyde-total (2 - 60) and hexaldehyde (4 - 136) were identified and quantified; and other VOCs, such as aromatic hydrocarbons, alkyl halides, nitrogen containing compounds and furans were only identified. The efficiency of the sugar cane combustion was evaluated (ΔCO/CO2 = 4.0±0.4%) in the laboratory and the predominant burning phase was the flaming phase. By comparing statistically filed measurements done before and during fire in the atmosphere of urban areas near fires, it was possible to distinguish two different groups of the measurements suggesting that the origin of the compounds is different. Direct emission sources and mainly photochemical reactions were responsible by the presence of formaldehyde and acetaldehyde in samples collected before fire (daytime measurements), whereas only direct emission sources were responsible by the presence of these compounds in samples collected during the fire (night measurements). Trajectories of air masses that reached the urban area and spots of burning recorded in the sampling days showed that the region studied was affected by fires.
Lukáčová, Mária. "Procesná analýza medzinárodnej finančnej inštitúcie". Master's thesis, Vysoká škola ekonomická v Praze, 2008. http://www.nusl.cz/ntk/nusl-7788.
Texto completoOtter, Thomas. "Conjointanalyse zur Messung und Erklärung von Markenwert /". Wien : Service-Fachverlag, 2001. http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&doc_number=009586839&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA.
Texto completoSchreyer, Maximilian. "Entwicklung und Implementierung von Performance Measurement Systemen". Wiesbaden : Dt. Univ.-Verl, 2007. http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&doc_number=016221590&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA.
Texto completoLandare, Maja y Daniel López. "VDC-Metrics : Utveckling av ett mätverktyg". Thesis, KTH, Byggteknik och design, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-149474.
Texto completoIs BIM- (Building Information Modeling) used in the most efficient and practical way in the infrastructure industry today? The difficulty in implementing BIM as a method throughout the process and organization in an industry that always relied on its traditions is one of the main subjects of the Swedish Transport Administration. Therefore they have elaborated a long-term plan with a primer objective that in the year 2015 have established a requirement that there future project shall require a certain involvement of BIM. What if there was a measurement tool that could evaluate all the aspects of a project using BIM as a tool and then compare it to other projects in purpose to value where in the organization, technology and process things could have been better. Wouldn’t the process and all aspects of it evolve a lot faster if conclusions could be drawn of the up- and downsides on earlier projects and experiences could be gained from other practices? In USA such a tool has been developed and named the VDC- (Virtual Design and Construction) Scorecard which was created by researchers working for CIFE (Center for Integrated Engineering) in Stanford University. With grander influence as a helping tool for that industry it´s in the authors interests to create a similar tool, but different in the way that it would be adapted to a particular part of the process; the projecting. This could later on be in great use for the consultant company to who the authors are collaborating with. The objective must be to create a measurement tool that in a neutral manner can value both the project in general and the importance of each aspect. By study how the VDC Scorecard was built and immerse into the general projecting process of infrastructure projects a fundament for this measurement tool will be built.
Gensler, Sonja Skiera Bernd. "Heterogenität in der Präferenzanalyse : ein Vergleich von hierarchischen Bayes-Modellen und Finite-Mixture-Modellen /". Wiesbaden : Dt. Univ.-Verl, 2003. http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&doc_number=010431500&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA.
Texto completoLatappy, Hubert. "Étude des COV issus de la dégradation thermique et oxydative des matériaux polymères". Phd thesis, Université Paris Sud - Paris XI, 2014. http://tel.archives-ouvertes.fr/tel-01059771.
Texto completoSyring, Maurice C. "Performance measurement und -Management von Kennzahlen- und Informationssystemen /". Aachen : Shaker, 2008. http://d-nb.info/989846644/04.
Texto completoWallace, Stephanie. "The relationship between ocean wave statistics and satellite measurements". Thesis, The University of Sydney, 1993. https://hdl.handle.net/2123/26654.
Texto completoBerner, Doris. "Price Management am Beispiel von Bergbahnen". St. Gallen, 2007. http://www.biblio.unisg.ch/org/biblio/edoc.nsf/wwwDisplayIdentifier/01648609002/$FILE/01648609002.pdf.
Texto completoKohler, Michaela. "Politische Fördermassnahmen für die Solarenergie - Evaluierung relevanter Förderattribute von Solarprojekten". St. Gallen, 2009. http://www.biblio.unisg.ch/org/biblio/edoc.nsf/wwwDisplayIdentifier/04603908001/$FILE/04603908001.pdf.
Texto completoPötzsch, Gerald. "Entwicklung und Überprüfung von Messsystemen zur Bewertung industrieller Dienstleistungen". Aachen Shaker, 2009. http://d-nb.info/994959869/04.
Texto completoSyring, Maurice [Verfasser]. "Performance-Measurement und -Management von Kennzahlen- und Informationssystemen / Maurice Syring". München : GRIN Verlag, 2016. http://d-nb.info/1175637483/34.
Texto completoDietman, Nils von. "Airport performance measurement : Kennzahlensystem zur Analyse und Bewertung von Flughafenprozessen /". Berlin : Univ.-Verl. der TU, 2008. http://www.ub.tu-berlin.de/index.php?id=2134#c8673.
Texto completoSyring, Maurice C. [Verfasser]. "Performance-Measurement und -Management von Kennzahlen- und Informationssystemen / Maurice C Syring". Aachen : Shaker, 2008. http://d-nb.info/1162792507/34.
Texto completoLunda, Filip. "Studium proudění na rozhraní nemísitelných kapalin". Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2021. http://www.nusl.cz/ntk/nusl-444285.
Texto completoHillig, Thomas. "Verfahrensvarianten der Conjoint-Analyse zur Prognose von Kaufentscheidungen : eine Monte-Carlo-Simulation /". Wiesbaden : Dt. Univ.-Verl, 2006. http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&doc_number=013130674&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA.
Texto completoHarrison, Paul James. "Measurement of specific VOCs from combustion of pulverised fossil and renewable fuels". Thesis, Imperial College London, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.399342.
Texto completoSchilling, Uwe [Verfasser] y Joachim von [Akademischer Betreuer] Zanthier. "Measurements in Quantum Optics / Uwe Schilling. Betreuer: Joachim von Zanthier". Erlangen : Universitätsbibliothek der Universität Erlangen-Nürnberg, 2011. http://d-nb.info/1015475051/34.
Texto completoHain, Mathias. "Die Performance von öffentlichen Unternehmen am Beispiel von Wohnungsunternehmen in Deutschland /". Wiesbaden : Gabler, 2008. http://d-nb.info/990377229/04.
Texto completoKipper, René. "Nutzung von Gleismessdaten für die Überwachung von Verformungen an Erdkörpern von Schienenfahrwegen". Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2016. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-210264.
Texto completoTheysohn, Sven. "Innovative Einsatzmöglichkeiten und Modifikationen der Choice-based-conjoint-Analyse zur Entwicklung und Optimierung von Preisstrategien /". Hamburg : Kovač, 2007. http://www.verlagdrkovac.de/978-3-8300-3282-3.htm.
Texto completoSowa, Sebastian. "Information-Security-Business-Performance-Measurement und -Management im Kontext von Compliance und Unternehmungszielen". Bochum ISEB, 2009. http://d-nb.info/100063129X/34.
Texto completoPütz, Torsten. "Die Prüfung von Performance-Measurement-Systemen : Ausgestaltung eines Assurance Engagement gemäß ISAE 3000 /". Düsseldorf : IDW-Verl, 2007. http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&doc_number=015790669&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA.
Texto completoRudenkiy, Sergiy [Verfasser]. "Contact mechanical measurements under higher frequency oscillation / vorgelegt von Sergiy Rudenkiy". [Clausthal-Zellerfeld] : [Univ.-Bibliothek], 2007. http://d-nb.info/987267094/34.
Texto completoBrückner, Marlen. "Retrieval of Optical and Microphysical Cloud Properties Using Ship-based Spectral Solar Radiation Measurements over the Atlantic Ocean". Doctoral thesis, Universitätsbibliothek Leipzig, 2015. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-164322.
Texto completoNirschl, Marco. "Management der Vertriebsstärke von Banken". Regensburg Univ.-Verl, 2008. http://d-nb.info/991700740/04.
Texto completoLöw, Kirsten. "Typisierung, Messung und Bewertung von Risiken im Rahmen des Risikomanagements /". Hamburg : Kovač, 2008. http://www.verlagdrkovac.de/978-3-8300-3263-2.htm.
Texto completoSpitzhirn, Michael, Torsten Merkel y Angelika C. Bullinger. "Untersuchungen der Einsetzbarkeit von Smartphone-Applikationen zur Messung von Arbeitsumweltfaktoren am Beispiel Klima". Universitätsbibliothek Chemnitz, 2016. http://nbn-resolving.de/urn:nbn:de:bsz:ch1-qucosa-200977.
Texto completoJalab, Chadi. "Contribution à l'étude de la sollicitation du métabolisme aérobie au cours d'un 100 m nage libre". Thesis, Poitiers, 2012. http://www.theses.fr/2012POIT2265/document.
Texto completoThe bioenergetic model proposed by P.E. di PRAMPERO explains performance in most human locomotions (running, cycling, swimming, ...) using indexes of metabolic power and energy cost of locomotion. Nevertheless, for 100-m front crawl events, environmental conditions make the aerobic power measurement difficult. The main purpose of this thesis is therefore to propose a new procedure to estimate aerobic responses during a 100-m front crawl event, performed in competition conditions. Trained swimmers participated to this study. In a 25-m swimming pool, the procedure includes a 100-m front crawl performance in competition conditions, and then, three tests (25-m, 50-m, 75-m) following the pacing strategy of the 100-m event. VO2 is not measured during the tests, but before and just at the end of each test with a breath-by-breath method. Each post-test VO2 (after 25m, 50m, 75m and 100m) allows to reconstruct the VO2 kinetics of the 100-m performance. The results differ from previous studies in that VO2 increases faster in the first half of the race (at 50m, VO2 ± 94%VO2max), reaches VO2max at the 75th meter; then a decrease in VO2 corresponding to 7% of VO2max appears during the last 25m. The estimation of aerobic contribution shows higher values than those previously published, because VO2max is reached very early during the race
Du, Fresne von Hohenesche Nicolas [Verfasser]. "Measurement of hadron multiplicities in deep inelastic muon-nucleon scattering / Nicolas Du Fresne von Hohenesche". Mainz : Universitätsbibliothek Mainz, 2016. http://d-nb.info/110557931X/34.
Texto completoRosa, Bruno Miguel Contente. "A portable electroantennogram recorder for laboratory and field measurements of semiochemicals". Master's thesis, 2016. http://hdl.handle.net/10362/69503.
Texto completoHuang, Show-Chu y 黃秀株. "Volumetric Measurement of the Adsorption Equilibrium of VOCs and Compared with the Gravimetric Measurement". Thesis, 2006. http://ndltd.ncl.edu.tw/handle/07245808139979103975.
Texto completo中原大學
化學工程研究所
94
The objective of this study was to investigate the adsorption isotherm of nine volatile organic compounds (n-hexane, cyclohexane, 1-hexene, 2-methylpentane, 3-methylpentane, 2,2-dimethylbutane, acetone, 2-butanone, 2-pentanone) adsorbed by activated carbon by the equipment of volumetric adsorption. This study focused on the effects of the physical and chemical properties of different volatile organic compounds and temperature on the behavior of adsorption. And the results of this study were compared with the results of gravimetric adsorption. Toth model was used to fit experimental data. The isosteric heat of adsorption was calculated by the combination of Clausius-clapeyron equation and Toth model. The results from the adsorption equilibrium data reveal the interaction between the adsorbent and the adsorbate. Results from the study indicated that the interaction between adsorbents and adsorbates was complex. The adsorption interaction between adsorbents and adsorbates would affected by different factor. And results from the study indicated the nonpolar or weak polar adsorbate, adsorbate with little steric barrier and adsorbate with little molecular weight was adsorbed more easily by active carbon. The polar adsorbate was adsorbed more easily in high pressure. And low temperature was good for adsorption. The experimental data was fitted well by Toth model. The isosteric heat of adsorption at zero coverage was inverse proportioned to polarity of adsorbate. The isosteric heat of adsorption for all adsorbates investigated decreases with increasing loading. It implies that the surface of activated carbon is energetically heterogeneous.
Spreckelsen, Burkhard von. "Performance Measurement von F & E-Kooperationsprojekten /". 2004. http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&doc_number=012032035&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA.
Texto completo"A VOT Measurement of the Pronunciation of Word-Initial /p/ by Libyan Speakers of English". Master's thesis, 2014. http://hdl.handle.net/2286/R.I.27413.
Texto completoDissertation/Thesis
Masters Thesis English 2014
Severgnini, Battista [Verfasser]. "Essays in total factor productivity measurement / von Battista Severgnini". 2010. http://d-nb.info/1010221167/34.
Texto completoYu, Samison y 游秋榮. "Fabrication of Low Phase Noise VCO from Measurement Viewpoint". Thesis, 2001. http://ndltd.ncl.edu.tw/handle/75709174200824810180.
Texto completo國立交通大學
電信工程系
89
ABSTRACT Leeson model is adopted in this thesis and actual characteristic of each element to design low phase noise oscillators. The quality factor of the tank, low frequency noise of the transistor and noise factor of oscillators are discussed in the contents. Firstly, the non-ideal of tank part implemented by MLCC is taken account to calculate the quality factor, and the best value of capacitors and inductors can be obtained quickly from one design flow. Secondly, the low frequency noises of three transistors were measured and their noise parameters were extracted. The transistor with lowest phase noise was chosen to design one oscillator. Its phase noise is as low as —126dBc/Hz at 100KHz offset. This result is outstanding for general MLCC oscillators. Finally, the notch filter is used to reduce noise factor of the oscillator then phase noise will be reduced about 4dB. Therefore, notch filter can be adopted even when the quality factor and noise feature cannot be improved. In brief, we can successfully implement low phase noise oscillators after understanding three above variables of Lesson model.
Sturm, Anke [Verfasser]. "Performance measurement und environmental Performance measurement : Entwicklung eines Controllingmodells zur unternehmensinternen Messung der betrieblichen Umweltleistung / von Anke Sturm". 2000. http://d-nb.info/96354358X/34.
Texto completoSpank, Uwe [Verfasser]. "Site water budget: influences of measurement uncertainties on measurement results and model results = Standortswasserbilanz: Einflüsse von Messunsicherheiten auf Mess- und Modellergebnisse / von Uwe Spank". 2010. http://d-nb.info/1011059312/34.
Texto completoFeltresi, Enrico [Verfasser]. "Measurement of the decays B → Dlv / vorgelegt von Enrico Feltresi". 2010. http://d-nb.info/1003343201/34.
Texto completo