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Dissertations / Theses on the topic 'Ventilation emissions'

Author: Grafiati

Published: 28 May 2022

Last updated: 31 July 2025

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1

Demmers, T. G. M. "Ventilation of livestock buildings and ammonia emissions." Thesis, University of Nottingham, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.339674.

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2

Gander, Nathan. "Assessing Particulate and Chemical Emissions from Additive Manufacturing Processes." University of Cincinnati / OhioLINK, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1595848332301779.

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3

Ogunlaja, Olumuyiwa Omotola. "Measurement of Air Pollutant Emissions from a Confined Poultry Facility." DigitalCommons@USU, 2009. https://digitalcommons.usu.edu/etd/392.

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Air emissions from animal feeding operations have become a growing concern. Much work has been done to study occupational exposures and the exhaust concentrations associated with animal facilities; however little information has been provided about air quality around the houses. Ammonia (NH3 ), ethanol (EtOH), nitrous oxide (N2O), carbon dioxide (CO2), and particulate matter (PM 2.5 and PM10) emissions were monitored in two different buildings for laying hens in northern Utah. Over the six-month sampling period, the observed average temperatures for the west and east fan banks of the high-rise

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4

Carder, Daniel K. "Performance evaluation of exhaust aftertreatment devices used for emissions control on diesel engines employed in underground coal mines." Morgantown, W. Va. : [West Virginia University Libraries], 1999. http://etd.wvu.edu/templates/showETD.cfm?recnum=1190.

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Thesis (M.S.)--West Virginia University, 1999.<br>Title from document title page. Document formatted into pages; contains x, 98 p. : ill. (some col.). Includes abstract. Includes bibliographical references (p. 75-78).

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5

Janke, David [Verfasser], Thomas [Akademischer Betreuer] Amon, Thomas [Gutachter] Amon, and Cornelia [Gutachter] Weltzien. "Estimating ventilation rates and emissions from a naturally ventilated dairy barn : a three-column approach / David Janke ; Gutachter: Thomas Amon, Cornelia Weltzien ; Betreuer: Thomas Amon." Berlin : Technische Universität Berlin, 2021. http://d-nb.info/1231356227/34.

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6

Johnson, Ben T. "Experimental analysis of crankcase oil aerosol generation and control." Thesis, Loughborough University, 2012. https://dspace.lboro.ac.uk/2134/10968.

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Crankcase ventilation contributes significantly to diesel engine particulate emissions. Future regulations will not only limit the mass of particulate matter, but also the number of particles. Controlling the source of crankcase emissions is critical to meeting the perennial legislation. Deficiency in the understanding of crankcase emissions generation and the contribution of lubricating oil has been addressed in detail by the experimental study presented in this thesis. A plethora of high speed laser optical diagnostics techniques have been employed to deduce the main mechanisms of crankcase

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7

Borges, João Batista. "Regional Lung Kinetics of Ventilator-Induced Lung Injury and Protective-Ventilation Strategies Studied by Dynamic Positron Emission Tomography." Doctoral thesis, Uppsala universitet, Hedenstiernalaboratoriet, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-230022.

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Mechanical ventilation in itself can harm the lung and cause ventilator-induced lung injury (VILI), which can induce or aggravate acute respiratory distress syndrome (ARDS). Much debate remains over pivotal concepts regarding the pathophysiology of VILI, especially about the precise contribution, kinetics, and primary role of potential VILI mechanisms. Consequently, it remains largely unknown how best to design a well-timed and full-bodied mechanical ventilation strategy. Little is known also about small airways dysfunction in ARDS. Dynamic positron emission tomography (PET) with [18F]fluoro-2

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8

Зарубін, Олександр Олегович. "Термодинамічний аналіз ефективності теплонасосних схем опалення з використанням теплоти повітряних техногенних викидів". Master's thesis, КПІ ім. Ігоря Сікорського, 2021. https://ela.kpi.ua/handle/123456789/41699.

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Магістерська дисертація на тему «Термодинамічний аналіз ефективності теплонасосних схем опалення з використанням теплоти повітряних техногенних викидів»: 92 с., 46 рис., 2 табл., 3додатки, 18 джерел. Об’єкт дослідження – теплонасосна система опалення з використанням теплоти повітряних техногенних викидів теплоти. Мета роботи – розрахунок і аналіз оптимальних умов для максимізації енергетичної ефективності роботи теплонасосної схеми низькотемпературного водяного опалення з використанням теплоти повітряних техногенних викидів, враховуючи такі фактори як умови навколишнього середовища та специф

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9

Дармофал, Е. А. "Зниження техногенного навантаження на атмосферне повітря шляхом фільтрації шахтових викидів". Thesis, Харківський національний університет ім. В.Н. Каразіна, 2021. https://essuir.sumdu.edu.ua/handle/123456789/83583.

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Дисертацію присвячено підвищенню рівня екологічної безпеки шляхом створення комбінованих систем фільтрації. Досліджено та впроваджено кілька розрахункових схем динамічних очисників повітря від пилу. Установлено, що на ступінь очищення впливає діаметр кільцевого каналу, частота його обертання, осьова довжина очисника й розміри порошин. З результатів розрахунків випливає, що запропоноване обладнання має ступінь очищення, характерний для фільтрів бар’єрного типу, причому не видається складним подальше поліпшення їх очисних характеристик. У дисертаційній роботі приведено результати науково-приклад

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10

Seow, Desmond. "Quantification of intrapulmonary blood shunt and ventilation/perfusion distributions in injured lungs by positron emission tomography." Thesis, Massachusetts Institute of Technology, 1995. http://hdl.handle.net/1721.1/37553.

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11

Petersson, Johan. "Effect of body posture on regional ventilation and perfusion at normal and increased gravity /." Stockholm, 2006. http://diss.kib.ki.se/2006/91-7140-920-3/.

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12

Galletti, Gaetano Giovanni 1973. "Quantification of regional perfusion, shunt fraction and ventilation using positron emission tomography : a nonlinear tracer kinetics model." Thesis, Massachusetts Institute of Technology, 1998. http://hdl.handle.net/1721.1/47666.

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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1998.<br>Includes bibliographical references.<br>Quantification of gas exchange in the lung using Positron Emission Tomography (PET) allows validation of mechanistic hypotheses regarding the local regulation of pulmonary function. We have developed a nonlinear lumped-parameter model to simulate the regional kinetics of the tracer 13N2 as measured by PET following a rapid intravenous injection of a bolus of 13N2 in saline solution. The model is made of a compartment representing the right heart and pulmonary

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13

Zhang, Haoran. "Multiple simulation experimental studies of gas emission, distribution and migration rules in mine ventilation system and goaf area." Doctoral thesis, Universitat Politècnica de Catalunya, 2015. http://hdl.handle.net/10803/350806.

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Gas problems have created severe difficulties for the mining industry around the world, leading to high expenditures and intensity research efforts, and determined attempts to enhance the various ventilation optimization and gas drainage techniques. Meanwhile, gas research is thriving in recent years, and gas drainage technology will continue to be a growing industry over the coming decades in many mining countries. Safety mining technologies including field investigation, numerical simulation and laboratorial experiments have been improved to develop a better understanding of the causes of m

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14

Peng, Chiung-Yu. "Identification and quantification of volatile organic compound emissions from buildings and heating, ventilating and air conditioning systems." Ann Arbor, Mich. : University of Michigan, 1998. http://books.google.com/books?id=yxIvAAAAMAAJ.

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15

Bluteau, Claudia. "Émissions d'ammoniac en provenance des infrastructures agricoles." Mémoire, Université de Sherbrooke, 2009. http://hdl.handle.net/11143/5518.

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Gaseous ammonia emissions from livestock production are a well known source of anthropogenic ammonia emissions and have been the subject of numerous studies in Western Europe and in the United States of America. They are deemed responsible for the acidification of ecosystems. Furthermore, ammonia emissions from intensive livestock operations located in the vicinity of major cities induce favourable conditions for smog formation. Ammonia volatilization from manure also reduces its effectiveness as a fertilizer by reducing its nitrogen content, an important nutrient for plant growth. Certain tec

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16

Strang, Christof. "The Effect of CO2-Pneumoperitoneum on Ventilation Perfusion Distribution of the Lung." Doctoral thesis, Uppsala universitet, Klinisk fysiologi, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-149746.

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Laparoscopic operations are a common and popular way for abdominal procedures. They are usually performed by insufflation of carbon dioxide (CO2) into the abdominal cavity. However, insufflation of CO2 may interfere with cardiac and circulatory as well as respiratory functions. The CO2-pneumoperitoneum (PP) may cause hypercarbia and acidosis. The direct effects of CO2 and acidosis lead to decreased cardiac contractility, sensitization of the myocardium to arrhythmogenic effects of catecholamines and systemic vasodilatation. There may even be long-lasting post-operative effects on breathing con

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17

Kozian, Alf. "Pathophysiological and Histomorphological Effects of One-Lung Ventilation in the Porcine Lung." Doctoral thesis, Uppsala universitet, Klinisk fysiologi, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-108850.

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Thoracic surgical procedures require partial or complete airway separation and the opportunity to exclude one lung from ventilation (one-lung ventilation, OLV). OLV is commonly associated with profound pathophysiological changes that may affect the postoperative outcome. It is injurious in terms of increased mechanical stress including alveolar cell stretch and overdistension, shear forces secondary to repeated tidal collapse and reopening of alveolar units and compression of alveolar vessels. Ventilation and perfusion distribution may thus be affected during and after OLV. The present studies

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18

Pouzot-Névoret, Céline. "Imagerie fonctionnelle de la ventilation et de l’inflammation pulmonaires lors d'agression pulmonaire aiguë expérimentale." Thesis, Lyon 1, 2010. http://www.theses.fr/2010LYO10234/document.

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Le syndrome de détresse respiratoire aiguë (SDRA) est caractérisé par des lésions alvéolairesdiffuses qui résultent d’une lésion de la membrane alvéolo-capillaire entrainant entre autresune réaction inflammatoire intense et une perte massive et hétérogène du volume pulmonaireaéré. La tomographie par émission de positons (TEP) et la tomographie par impédanceélectrique (TIE) sont deux techniques d’imagerie fonctionnelle permettant l’étude noninvasive, quantitative et régionale du poumon.Ce travail présente le résultat d’études expérimentales conduites dans le SDRA. Tout d’abord,nous avons compar

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19

Abubakar, Sofiullah. "The conclusions drawn from ventilation/perfusion single photon emission computed tomography (SPECT) compared to lung perfusion SPECT and a chest x-ray (CXR) in patients with suspected pulmonary pulmonary thromboembolism." Master's thesis, University of Cape Town, 2018. http://hdl.handle.net/11427/29578.

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Purpose: There are conflicting results from studies on whether the ventilation (V) scintigraphy can be safely omitted or replaced by a chest x-ray. These studies were based on planar ventilation perfusion (V/Q) scintigraphy. We evaluated the value of the V single photon emission computed tomography (SPECT) on the final conclusion drawn from a V/Q SPECT and the possible role of the chest x-ray as a surrogate for the V SPECT. Methods Raw data of V/Q SPECT images and chest x-ray acquired within 48 hours over 18 months period were retrieved, reprocessed and reviewed in batches. The V SPECT, Q SPEC

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20

Tong, Xinjie. "Modeling of Indoor Environment and Ammonia Emission, Distribution, and Dispersion Within and From Manure-Belt Layer Houses." The Ohio State University, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=osu1555597893284097.

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21

Dhahak, Amal. "Modélisation chimique détaillée de la combustion de la biomasse dans les appareils de chauffage domestique en vue de réduire leurs émissions polluantes." Electronic Thesis or Diss., Université de Lorraine, 2019. http://www.theses.fr/2019LORR0017.

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Cette thèse vise à comprendre et à modéliser les mécanismes chimiques de combustion de la biomasse dans les appareils de chauffage domestiques afin de réduire les émissions polluantes. Dans ce but, un modèle global de combustion a été développé. Ce modèle considère à la fois une cinétique chimique détaillée et le transfert thermique. La première partie de ce travail a consisté à développer un modèle cinétique permettant de représenter la dévolatilisation de la biomasse ainsi que les réactions secondaires de combustion en phase gazeuse des espèces émises au cours de la pyrolyse primaire. Selon

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22

Dhahak, Amal. "Modélisation chimique détaillée de la combustion de la biomasse dans les appareils de chauffage domestique en vue de réduire leurs émissions polluantes." Thesis, Université de Lorraine, 2019. http://www.theses.fr/2019LORR0017.

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Cette thèse vise à comprendre et à modéliser les mécanismes chimiques de combustion de la biomasse dans les appareils de chauffage domestiques afin de réduire les émissions polluantes. Dans ce but, un modèle global de combustion a été développé. Ce modèle considère à la fois une cinétique chimique détaillée et le transfert thermique. La première partie de ce travail a consisté à développer un modèle cinétique permettant de représenter la dévolatilisation de la biomasse ainsi que les réactions secondaires de combustion en phase gazeuse des espèces émises au cours de la pyrolyse primaire. Selon

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23

Zinserling, Jörg [Verfasser]. "Verteilungen der spezifischen tidalen Ventilation der Lunge aus N2-Auswaschzeitkonstanten, Einzelphotonen-Emissions-Computertomographie und Computertomographie beim akuten Lungenversagen / vorgelegt von Jörg Zinserling." 2006. http://d-nb.info/980366585/34.

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24

Li, Bo. "Energy saving opportunities in residential buildings: insights from technological and building energy code perspectives." Thesis, 2020. http://hdl.handle.net/1828/12135.

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The residential building sector plays an important role in combating climate change in Canada. Many energy efficiency solutions along with new building energy standards have been implemented to improve building energy performance. However, their effects on energy saving and GHG emissions reduction vary due to the complexity of the building systems and the variability of their operational conditions. This work quantifies such variability in both energy efficiency devices and building energy standards implementation, respectively. The first study in this dissertation assesses the energy saving

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25

Jerez, Sheryll Buena. "Airborne pollutant spatial distribution, emission, and ventilation effectiveness for mechanically ventilated livestock buildings /." 2007. http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:3290261.

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Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 2007.<br>Source: Dissertation Abstracts International, Volume: 68-11, Section: B, page: 7466. Adviser: Yuanhui Zhang. Includes bibliographical references (leaves 258-267) Available on microfilm from Pro Quest Information and Learning.

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26

Chao, Chia-Ping, and 趙珈萍. "A Study on Estimation of Indoor Pollutants Emission and Ventilation Rates with the Tracer Gas Method." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/60469940725692242114.

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碩士<br>國立高雄第一科技大學<br>營建工程所<br>98<br>Radon is a colorless and odorless gas. According to epidemiological survey, radon is, second to smoking, the main cause of lung cancer. Prolonged exposure to high concentrations of radon may lead to lung cancer. However, this issue is often neglected as it generally takes 15 to 40 years of prolonged radon exposure for the pathological changes to take place. The World Health Organization published WHO Handbook on Indoor Radon in 2009 to raise worldwide attention. The way to prevent radon pollution is either blocking or diluting it. In Taiwan, the Chinese Natio

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27

Cheng-ChenChen and 陳振誠. "A study on the emission contaminant of interior building materials and the efficiency of it’s removal by ventilation." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/92570649573767638659.

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博士<br>國立成功大學<br>建築學系碩博士班<br>100<br>This study employed research methods including laboratory experiment, numerical analysis, statistical analysis and literature comparative analysis. The experiment was conducted in two parts including the small-scale environmental control box experiment of building material fugitive emissions and the full-size environmental control cabin experiment to evaluate the characteristics and modes of different fugitive emissions of the indoor building materials fugitive emissions. It also explored the change of different pollutants of indoor building materials as well

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28

(9787031), Ashfaque Chowdhury. "Computational assessment of building system performance: Improved energy efficiency and thermal comfortability for the future." Thesis, 2020. https://figshare.com/articles/thesis/Computational_assessment_of_building_system_performance_Improved_energy_efficiency_and_thermal_comfortability_for_the_future/16910749.

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Energy expenditure is one of the significant overheads in the lifespan of multistoreyed buildings. Reliable and proficient functions of Heating, Ventilation and Air Conditioning (HVAC) systems are further imperative as a result of the climbing price of electricity. This research recommends that the compounded energy utilisation to meet the demand from high humidity and temperature could be minimised by adopting the alternative high-performance building envelope and low emission cooling method along with the optimised control of additional operational parameters. The core purpose of this resear

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