Log in

Relevant bibliographies by topics / DME/DME / Dissertations / Theses

To see the other types of publications on this topic, follow the link: DME/DME.

Dissertations / Theses on the topic 'DME/DME'

Author: Grafiati

Published: 30 May 2022

Last updated: 31 July 2025

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 dissertations / theses for your research on the topic 'DME/DME.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse dissertations / theses on a wide variety of disciplines and organise your bibliography correctly.

1

Ostroumov, Ivan Victorovich. "Analysis of DME/DME positioning capabilities for borispil airspace region." Thesis, ІІ National Scientific Conference of young scientists and students «Problems and prospects of Aeronautics and Astronautics» 23 – 24 October 2013 y – Kyiv, 2013. – P. 21, 2013. http://er.nau.edu.ua/handle/NAU/26591.

Full text

Abstract:

Case of on board equipment failure or in case of unavailability of GNSS support (for example: result of some errors), flight management system (FMS) has to use other alternative methods for positioning. FMS has got diferent positioning alghoritms with is grounted on current navigation aids infrastructure [1]. One of them uses distance measurement equipment (DME) for this purpose. DME positioning technics are the most accurate in this situation and avalible on the bigger part of Ukrainian airspace. In this case, it is possible to regard DME like an alternate source of positioning, navigation an

APA, Harvard, Vancouver, ISO, and other styles

2

Ostroumov, Ivan Victorovich. "Расчёт точности дальномерного оборудования DME для определённой высоты полёта и геометриии взаимного расположения". Thesis, Национальный авиационный университет, 2017. http://er.nau.edu.ua/handle/NAU/28123.

Full text

Abstract:

Рассмотрен процесс оценивания точности выдерживания заданной лини положения по дальномерному оборудованию DME. Оценивание выполнено для пар навигационных средств с учётом оптимального их расположения в пространстве. Разработана структурная схема программного обеспечения для расчёта точности, выполнено моделирование для конкретной зоны воздушного пространства.

APA, Harvard, Vancouver, ISO, and other styles

3

Mbarawa, M., W. Lee, YW Nam, and SH Chung. "Ethylene propane and ethylene ester synergistic effects on soot formation." R&D Journal of the South African Institution of Mechanical Engineering, 2007. http://encore.tut.ac.za/iii/cpro/DigitalItemViewPage.external?sp=1000860.

Full text

Abstract:

In this study, the synergistic elfects of ethylene-propane and ethylene-dimethyl ester (DME) mirtures on soot formation were investigated experimentully using u coflow dilfusion flame burnen The soot volume fraction, soot particle diameter and number density were measured and compured to the homogenous mixture. Addition of DME and propane to the ethylene fuel increased soot volume fraction in the ethylene flames. The ethylene- propnne has more pronounced synergistic ffict in compsrison to the ethylene-DME flame* This is due to the fact that during the decomposition of propane some methyl radic

APA, Harvard, Vancouver, ISO, and other styles

4

Demir, Hakan. "Dimethyl Ether (dme) Synthesis Using Mesoporous Sapo-34 Like Catalytic Materials." Master's thesis, METU, 2011. http://etd.lib.metu.edu.tr/upload/12613471/index.pdf.

Full text

Abstract:

In 21st century, researchers make great effort of finding a clean transportation fuel to diminish the severe effects of conventional transportation fuel combustion such as global warming and air pollution. Dimethyl ether is considered as a strong fuel alternative due to its good burning characteristics and environmentally friendly properties. In order to produce dimethyl ether, different synthesis routes and solid acid catalysts are being utilized. SAPO-34 is an aluminophosphate based catalyst having moderate acidity. This property makes it a good candidate for the synthesis of dimethyl ether.

APA, Harvard, Vancouver, ISO, and other styles

5

Arinan, Ayca. "Direct Synthesis Of Dimethyl Ether (dme) From Synthesis Gas Using Novel Catalysts." Master's thesis, METU, 2010. http://etd.lib.metu.edu.tr/upload/3/12611490/index.pdf.

Full text

Abstract:

Increasing prices of crude oil derived transportation fuels ascended the researches on seeking alternative fuels, in last decades. Moreover, the increasing rate of global warming, because of high greenhouse gas emissions initiated new research for environment-friendly clean alternative fuels. Due to its low NOx emission, good burning characteristics and high cetane number, dimethyl ether (DME) attracted major attention as a transportation fuel alternative. Two possible pathways have been proposed for DME production. One of these pathways is DME synthesis through conventional methanol dehydrati

APA, Harvard, Vancouver, ISO, and other styles

6

Rajendran, Jaikishan. "DME/P critical area determination and its implementation on message-passing processor." Ohio : Ohio University, 1992. http://www.ohiolink.edu/etd/view.cgi?ohiou1172867327.

Full text

APA, Harvard, Vancouver, ISO, and other styles

7

Krejčí, Jan. "Optimalizace sítě pozemních radionavigačních prostředků zabezpečení RNAV ve FIR Praha." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2014. http://www.nusl.cz/ntk/nusl-231086.

Full text

Abstract:

This diploma thesis concerns with creating of study which deals with the optimization of the ground network infrastructure of radio navigation aids for RNAV in FIR Praha. The thesis contains an analysis of concept of development of Czech navigation environment and introduces DEMETER software, in which the optimization analyses are realized. The thesis describes DME/DME navigation system from the perspective of individual components and parameters. The actual study deals with an optimization of the ground network infrastructure of the radio navigation aids and includes the definition of network

APA, Harvard, Vancouver, ISO, and other styles

8

Seo, Kangwoo. "Experimental investigation of DME assisted gasoline CAI combustion with re-breathing valve strategy." Thesis, Brunel University, 2015. http://bura.brunel.ac.uk/handle/2438/12194.

Full text

Abstract:

Controlled auto-ignition (CAI), also known as HCCI combustion in a gasoline engine has been extensively researched due to their potential of improved engine efficiency and low NOx emission. However, the combustion timing and the phasing of conventional CAI combustion depend on the in-cylinder condition, such as temperature and combustible mixture strength and thus cannot be directly controlled. In this study, direct DME (Dimethyl Ether) injection was adopted to increase the ignitability of premixed gasoline/air charge and to trigger the auto ignition of premixed charge. Re-breathing valve stra

APA, Harvard, Vancouver, ISO, and other styles

9

García, Trenco Andrés. "Desarrollo de catalizadores híbridos CuZnOAl2O3/zeolita para el proceso de síntesis directa de DME." Doctoral thesis, Universitat Politècnica de València, 2014. http://hdl.handle.net/10251/34781.

Full text

Abstract:

El plan de investigación se centra en el estudio y diseño de catalizadores híbridos para el proceso de síntesis directa de dimetil éter (DME) a partir de gas de síntesis, también conocido en la literatura como "Syngas-To-DME o STD process" [1]. Para llevar a cabo el proceso de síntesis directa de DME se emplean catalizadores híbridos constituidos por mezclas físicas del componente de síntesis de metanol (catalizador basado en Cu) y el componente ácido que lleva a cabo la deshidratación de metanol para dar lugar al DME (zeolita) [1]. De manera general, las labores en las que se centra

APA, Harvard, Vancouver, ISO, and other styles

10

Fedeli, Matteo. "Vers la valorisation des déchets industriels : production de bio-DME à partir de biogaz." Electronic Thesis or Diss., Université de Toulouse (2023-....), 2024. http://www.theses.fr/2024TLSEP018.

Full text

Abstract:

Cette thèse étudie la faisabilité industrielle du bio-diméthyléther (bio- DME) production à partir de biogaz. L'étude comprend une exploration approfondie, y compris une comparaison technico-économique et environnementale complète des utilisations du biogaz conventionnel et alternatif, analyse du comportement dynamique du procédé bio-DME, évaluations économiques de la production directe et indirecte de DME méthodes, et la proposition d'un procédé innovant de synthèse de bio-DME mettant en vedette des catalyseurs à haute activité de CO2 et un réacteur sous licence du Politecnico di Milano. Util

APA, Harvard, Vancouver, ISO, and other styles

11

Jiang, Qian. "Direct dimethyl ether synthesis from CO2/H2." Thesis, Strasbourg, 2017. http://www.theses.fr/2017STRAF041/document.

Full text

Abstract:

DME est un carburant propre qui contribue à diminuer les émissions de gaz à effet de serre; il est aussi une molécule plate-forme pour le stockage d'énergie. L'objectif de la thèse est le développement de matériaux catalytiques bifonctionnels pour la synthèse directe de DME à partir de CO2/H2 à partir de Cu/ZnO/ZrO2 comme le catalyseur de la synthèse de méthanol à partir de CO2/H2 et Al-TUD-1 comme le catalyseur de déshydratation du méthanol en DME. Dans cette thèse, Al-TUD-1 a été étudiée comme un catalyseur de la déshydratation du méthanol en DME pour la première fois. Son activité en déshyd

APA, Harvard, Vancouver, ISO, and other styles

12

Ahmad, Ruaa [Verfasser], and Manfred [Akademischer Betreuer] Döring. "Katalysatorsynthese umd -optimierung für die DME-Direktsynthese aus CO-reichem Synthesegas / Ruaa Ahmad ; Betreuer: Manfred Döring." Heidelberg : Universitätsbibliothek Heidelberg, 2014. http://d-nb.info/1177811383/34.

Full text

APA, Harvard, Vancouver, ISO, and other styles

13

Photinon, Kanokorn. "DEVELOPMENT OF DIMETHYL ETHER (DME) AND CARBON DIOXIDE SENSORS USING PLATINUM NANOPARTICLES AND THICK FILM TECHNOLOGY." Case Western Reserve University School of Graduate Studies / OhioLINK, 2007. http://rave.ohiolink.edu/etdc/view?acc_num=case1164899809.

Full text

APA, Harvard, Vancouver, ISO, and other styles

14

Ding, Hao. "Facility separation criteria development and enhancement for directive Distance Measuring Equipment (DME) in the national airspace system." Ohio University / OhioLINK, 1998. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1176835681.

Full text

APA, Harvard, Vancouver, ISO, and other styles

15

Godavarthi, Bhavya Sree. "A Computational Study on the Effect of Injection Strategy on Emissions in a DME Fueled CI Engine." University of Akron / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=akron1449077797.

Full text

APA, Harvard, Vancouver, ISO, and other styles

16

Lee, Seungcheol [Verfasser], and R. [Akademischer Betreuer] Dittmeyer. "Novel bifunctional double-layer catalysts for application in microreactors for direct DME synthesis / Seungcheol Lee. Betreuer: R. Dittmeyer." Karlsruhe : KIT-Bibliothek, 2016. http://d-nb.info/1082294624/34.

Full text

APA, Harvard, Vancouver, ISO, and other styles

17

Kruger, Stephan J. "Validation of the precision distance measuring equipment (DME/P) module of the baseline microwave landing system (MLS) mathematical model." Ohio : Ohio University, 1993. http://www.ohiolink.edu/etd/view.cgi?ohiou1175711926.

Full text

APA, Harvard, Vancouver, ISO, and other styles

18

Haubeil, J. Jeffrey. "Operational viability of a directive distance measuring equipment (DME) antenna in a national airspace system (NAS) approach and landing environment." Ohio : Ohio University, 1996. http://www.ohiolink.edu/etd/view.cgi?ohiou1178311788.

Full text

APA, Harvard, Vancouver, ISO, and other styles

19

Merten, Charlotte Caroline [Verfasser]. "Analyse der Genexpression von humanen Stro-1-positiven Zahnkeim- und Beckenkammzellen in DME-Medium und osteogenem Differenzierungsmedium / Charlotte Caroline Merten." Göttingen : Niedersächsische Staats- und Universitätsbibliothek Göttingen, 2020. http://d-nb.info/1217062726/34.

Full text

APA, Harvard, Vancouver, ISO, and other styles

20

Behloul, Chakib Rafik. "Méthodes de conception de réacteurs multifonctionnels (réacteur-échangeur-séparateur) : application à la synthèse directe de DME à partir de CO₂ et d’H₂." Electronic Thesis or Diss., Université de Lorraine, 2022. http://www.theses.fr/2022LORR0249.

Full text

Abstract:

L'épuisement des ressources et l'accumulation des gaz polluants dans l'atmosphère suscitent aujourd'hui des inquiétudes grandissantes. La transition énergétique en cours nécessite que certains procédés de transformation de la matière et de l'énergie soient partiellement modifiés ou profondément repensés pour s'adapter à des conditions de fonctionnement plus durables. L'électricité et l'hydrogène bas carbone peuvent se substituer aux énergies fossiles conduisant ainsi à un mix énergétique dont l'empreinte Gaz à Effet de Serre (GES) est faible. Outre l'hydrogène, la production de carburants alte

APA, Harvard, Vancouver, ISO, and other styles

21

Neji, Najett. "Etude de la compatibilité radioélectrique du futur système de communication aéronautique en bande L." Phd thesis, Supélec, 2011. http://tel.archives-ouvertes.fr/tel-00825251.

Full text

Abstract:

Au début des années 2000, les instances aéronautiques ont exprimé le besoin de développer un nouveau système de radiocommunication aéronautique du fait de l'augmentation du trafic aérien et de la saturation croissante des capacités de communication radio entre les aéronefs et les stations de contrôle aérien. L'une des composantes de ce système, nommée L-DACS (" L-band Digital Aeronautical Communication System "), devrait opérer dans la bande L-aéronautique (960-1164 MHz), dans laquelle fonctionnent également de nombreux autres systèmes radioélectriques. La compatibilité radioélectrique (CRE) d

APA, Harvard, Vancouver, ISO, and other styles

22

Schedin, Niclas. "Alternativa Drivmedel som Enhetsdrivmedel." Thesis, Försvarshögskolan, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:fhs:diva-3982.

Full text

Abstract:

Fossila drivmedel står idag för en överlägsen majoritet av den totala användningen av drivmedel som dagligen förburkas. Alternativ till de fossila drivmedlen krävs för att säkerställa tillgång i framtiden. Försvarsmakten har fått uppdrag från regeringen att utforska möjligheten att övergå till att driva sina fordon på förnyelsebara bränslen.Militära organisationer strävar efter ett enhetsdrivmedel, alltså ett gemensamt drivmedel som driver samtliga fordon och enheter. Största anledningen är den förenklade logistik som kan uppnås om endast ett drivmedel används.Detta arbete har sökt efter ett a

APA, Harvard, Vancouver, ISO, and other styles

23

Renk, Christian Peter [Verfasser]. "Die einstufige Dimethylether-Synthese aus Synthesegas : experimentelle und theoretische Betrachtungen zur einstufigen DME-Synthese mit Synthesegas aus der Flugstrom-Druckvergasung von Biomasse / Christian Peter Renk." Eggenstein-Leopoldshafen : Forschungszentrum Karlsruhe GmbH, 2009. http://d-nb.info/1005058679/34.

Full text

APA, Harvard, Vancouver, ISO, and other styles

24

Meng, Fanhong. "Développement d’antennes à base de structures métamatériaux pour les applications aéronautiques (GPS/DME, bande L) et de communications haut débit (en bade E – 80 GHz)." Thesis, Paris 10, 2015. http://www.theses.fr/2015PA100203.

Full text

Abstract:

Les travaux présentés dans ce manuscrit sont relatifs à la conception et au développement d’antennes basées sur les structures artificielles – métamatériaux. La première antenne conçue et réalisée est une antenne bi-fonction en bande L (~1GHz) (GPS et DME) à diversité de bande/de polarisation, destinée aux applications aéronautiques. Ces travaux rentrent dans le cadre du projet MSIE (pôle de compétitivité ASTHEC) pour lequel notre LEME a été très actif. Les partenaires industriels de ce projet sont EADS/IW, Dassault aviation, INEO-Défense, SATIMO. Les résultats montrent la faisabilité d’une an

APA, Harvard, Vancouver, ISO, and other styles

25

Bandúr, Juraj. "Návrh a zpracování výukových postupů přístrojové navigace." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2014. http://www.nusl.cz/ntk/nusl-231639.

Full text

Abstract:

The diploma thesis deals with concepts of various key tasks for flights operated by device navigation, while these tasks are designed under the requirements of the regulation JAR-FCL 1. The work also includes explanation of the principles of operation of selected radio navigation devices, which are demonstrated in various roles, making these tasks serve well as a possible teaching material for navigation subjects. Part of the work also includes the evaluation of the simulator FlitePro for the purposes of its certification as a training device.

APA, Harvard, Vancouver, ISO, and other styles

26

Vögeler, Jessica [Verfasser], and Lothar [Akademischer Betreuer] Färber. "Pharmakotherapie und Humanpharmakologische Untersuchungen bei Patienten mit DME (Diabetisches Makulaödem) und PDR (Proliferative Diabetische Retinopathie) anhand klinischer Parameter und inflammatorischer Biomarker / Jessica Vögeler. Betreuer: Lothar Färber." Regensburg : Universitätsbibliothek Regensburg, 2016. http://d-nb.info/1081543426/34.

Full text

APA, Harvard, Vancouver, ISO, and other styles

27

Despres, Aurélien. "Mise au point de nouvelles résines aminoplastes écologiques à base de diméthoxyéthanal et sans formaldéhyde pour application en tant que colles pour panneaux de particules." Nancy 1, 2006. http://www.theses.fr/2006NAN10101.

Full text

Abstract:

L'@objectif de ce travail est la mise au point de nouveaux adhésifs destinés à la fabrication de panneaux de particules sans formaldéhyde. Cette molécule étant cancérogène, un autre aldéhyde, le diméthoxyéthanal (DME), non toxique, est utilisé pour formuler ces nouveaux adhésifs écologiques. Afin de mener à bien cette étude, deux voies de recherche principales sont établies. Dans un premier temps, la synthèse de résines est étudiée dans le but d'obtenir un produit stable et le plus réactif possible. La deuxième partie du travail consiste à utiliser des additifs en post addition, tels que des i

APA, Harvard, Vancouver, ISO, and other styles

28

Tokay, Kenan Cem. "Dimethyl Ether Synthesis Over Novel Mesoporous Catalysts." Master's thesis, METU, 2008. http://etd.lib.metu.edu.tr/upload/3/12609817/index.pdf.

Full text

Abstract:

Due to overconsumption, fossil reserves are rapidly being depleted and various sources predict that they will not last until the end of 21st century. Moreover, the increase in the rate of global warming and the polluting matter emitted by the vehicles consuming fossil fuels has increased the search for renewable and clean energy sources. Alcohols and ethers, which contain fewer pollutants and have better burning properties, are commonly thought among clean fuel alternatives. Among the potential clean energy sources, dimethyl-ether is already in use in the automotive industries of many countrie

APA, Harvard, Vancouver, ISO, and other styles

29

Zinner, Christopher. "METHANE AND DIMETHYL ETHER OXIDATION AT ELEVATED TEMPERATURES AND PRESSURE." Master's thesis, University of Central Florida, 2008. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/3457.

Full text

Abstract:

Autoignition and oxidation of two Methane (CH4) and Dimethyl Ether (CH3OCH3 or DME) mixtures in air were studied in shock tubes over a wide range of equivalence ratios at elevated temperatures and pressures. These experiments were conducted in the reflected shock region with pressures ranging from 0.8 to 35.7 atmospheres, temperatures ranging from 913 to 1650 K, and equivalence ratios of 2.0, 1.0, 0.5, and 0.3. Ignition delay times were obtained from shock-tube endwall pressure traces for fuel mixtures of CH4/CH3OCH3 in ratios of 80/20 percent volume and 60/40 percent volume, respectively. Clo

APA, Harvard, Vancouver, ISO, and other styles

30

Wahlund, Bertil. "Rational bioenergy utilisation in energy systems and impacts on CO2emissions." Doctoral thesis, KTH, Chemical Engineering and Technology, 2003. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-3490.

Full text

Abstract:

<p>The increased concentration of greenhouse gases in theatmosphere, in particular CO<sub>2</sub>, is changing the Earths climate. Accordingto the Kyoto protocol, where the international community agreedon binding emission targets, developed countries are committedto reduce their greenhouse gas emissions. The increased use ofbiomass in energy systems is an important strategy to reduce CO<sub>2</sub>emissions. The purpose of this thesis has been toanalyse the opportunities for Sweden to further reduce CO<sub>2</sub>emissions in the energy system, by rationallyutilising woody biomass energy. Th

APA, Harvard, Vancouver, ISO, and other styles

31

Törnberg, Pontus. "GNSS independent navigation using radio navigation equipment." Thesis, Luleå tekniska universitet, Rymdteknik, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-81212.

Full text

Abstract:

This thesis studies algorithms to estimate an aircraft’s position with different information from various radio stations. Because aircrafts both civilian and military are heavily dependant on GNSS signals, it can be interfered from hostile sources. The aircraft shall then be able to navigate without the GNSS signals. This thesis focuses on three radio navigation systems, DME,VOR and TACAN. With the measurements from these three radio stations and measurements from the inertial navigation system one can estimate a position with an estimation filter. In this thesis two types of filters will be u

APA, Harvard, Vancouver, ISO, and other styles

32

Coanga, Jean-Maurice. "Caractéristiques vibrationnelles du chlorure de nitryle, du diméthyl-éther et de l'oxyde d'éthylène absorbés sur la surface de la glace ou piégés dans son volume entre 10 et 170 K : Etude de leur photodissociation à 30 K en matrices, phase solide et dans la glace." Paris 6, 2003. http://www.theses.fr/2003PA066062.

Full text

APA, Harvard, Vancouver, ISO, and other styles

33

Hernández, López Alberto. "Optimization and analysis by CFD of mixing-controlled combustion concepts in compression ignition engines." Doctoral thesis, Universitat Politècnica de València, 2018. http://hdl.handle.net/10251/103826.

Full text

Abstract:

El trabajo presentado en esta Tesis está motivado por la necesidad de los motores de combustión interna alternativos de reducir el consumo de combustible y las emisiones de CO2 mientras se satisfacen las cada vez más restrictivas regulaciones de emisiones contaminantes. Por lo tanto, el objetivo principal de este estudio es optimizar un sistema de combustión de encendido por compresión controlado por mezcla para probar su potencial como motores de futura generación. Con esta meta se ha desarrollado un sistema automático que combina CFD con métodos de optimización avanzados para analizar

APA, Harvard, Vancouver, ISO, and other styles

34

Lombaert, Karine. "Composition et évolution des espèces particulaires émises à l'échappement d'un moteur diesel en fonction des paramètres moteur et de la nature du carburant." Paris 6, 2002. http://www.theses.fr/2002PA066431.

Full text

APA, Harvard, Vancouver, ISO, and other styles

35

Gunnarsson, Andreas. "Analysis of Alternative Fuels in Automotive Powertrains." Thesis, Linköping University, Department of Electrical Engineering, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-17053.

Full text

Abstract:

<p>The awareness of the effect emissions have on the environment and climate has risen in the last decades. This has caused strict regulations of greenhouse gas emissions. Greenhouse gases cause global warming which may have devastating environmental effects. Most of the fuels commercially available today are fossil fuels. There are two major effects of using fuels with fossil origin; the source will eventually drain and the usage results in an increase of greenhouse gases in the atmosphere. Fuels that are created from a renewable feedstock are often referred to as alternative fuels and under

APA, Harvard, Vancouver, ISO, and other styles

36

Duran, Martinez Laura Elizabeth. "Dévelοppement et οptimisatiοn d'un prοcédé de prοductiοn de mοlécules d'intérêt par hydrοgénatiοn du CΟ2 à partir d'hydrοgène renοuvelable". Electronic Thesis or Diss., Normandie, 2024. http://www.theses.fr/2024NORMIR21.

Full text

Abstract:

La transition des combustibles fossiles vers les sources d’énergie renouvelables est de plus en plus urgente en raison de leur contribution significative au changement climatique mondial. L'augmentation des niveaux de dioxyde de carbone dans l'atmosphère souligne le besoin critique d'alternatives durables. La conversion du CO₂ en molécules à valeur ajoutée (vecteurs énergétiques) offre une solution prometteuse pour réduire la dépendance aux combustibles fossiles. Cette thèse explore le potentiel de l'hydrogénation catalytique du CO₂ pour produire des produits chimiques à valeur ajoutée tels qu

APA, Harvard, Vancouver, ISO, and other styles

37

Parajuli, Bikash. "Laminar Flame Speeds and Autoignition of Dimethyl Ether at Elevated Pressures and Temperature using Novel Combustion Technique." University of Akron / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=akron1471016443.

Full text

APA, Harvard, Vancouver, ISO, and other styles

38

SALOMONE, FABIO. "Addressing the challenges of the Power-to-Fuel technologies from a catalyst development and techno-economic point of view." Doctoral thesis, Politecnico di Torino, 2021. http://hdl.handle.net/11583/2907012.

Full text

APA, Harvard, Vancouver, ISO, and other styles

39

Li, Kuangmin. "Enhanced Distance Measuring Equipment Carrier Phase." Ohio University / OhioLINK, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1416581585.

Full text

APA, Harvard, Vancouver, ISO, and other styles

40

Naab-Levy, Adam O. "Enhanced Distance Measuring Equipment Data Broadcast Design, Analysis, Implementation, and Flight-Test Validation." Ohio University / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1449158180.

Full text

APA, Harvard, Vancouver, ISO, and other styles

41

Putzulu, Matteo. "Modernizzazione dei sistemi satellitari di posizionamento globale (GNSS)." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2016.

Find full text

Abstract:

In questa tesi, sono esposti i sistemi di navigazione che si sono evoluti, parimenti con il progresso scientifico e tecnologico, dalle prime misurazioni della Terra, per opera della civiltà ellenica, circa 2.500 anni fa, sino ai moderni sistemi satellitari e ai mai tramontati sistemi di radionavigazione. I sistemi di navigazione devono rispondere alla sempre maggiore richiesta di precisione, affidabilità, continuità e globalità del servizio, della società moderna. È sufficiente pensare che, attualmente, il solo traffico aereo civile fa volare 5 miliardi di passeggeri ogni anno, in oltre 60

APA, Harvard, Vancouver, ISO, and other styles

42

Gross, Kenan. "Fuelling of an automotive engine on dimethyl ether (DME)." Thesis, 2008. http://hdl.handle.net/10539/4932.

Full text

Abstract:

Abstract This research is based on development of a small compact Low Pressure Dimethyl Ether (DME) fuelling system with the scope of one day being retrofitted to a diesel Light Duty Vehicle (LDV). The development of the Low Pressure DME fuelling system is discussed along with the engine injector haracteristics, the energy release, and the NOx emissions. The recorded data was compared to a previous DME fuelling system and conventional diesel results. The report discusses in detail the complete design phase of the Low Pressure DME system, with emphasis on the delivery pressure and portabili

APA, Harvard, Vancouver, ISO, and other styles

43

Lin, Mao Ho, and 林楙賀. "Optimal Design and Analysis of Various DME Production Processes." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/07155210703636808214.

Full text

APA, Harvard, Vancouver, ISO, and other styles

44

Parvez, A. M., Iqbal M. Mujtaba, P. Hall, E. H. Lester, and T. Wu. "Synthesis of Bio-Dimethyl Ether Based on Carbon Dioxide-Enhanced Gasification of Biomass: Process Simulation Using Aspen Plus." 2015. http://hdl.handle.net/10454/7932.

Full text

Abstract:

Yes<br>Process simulation of a single-step synthesis of DME based on CO2-enhanced gasification of rice straw was conducted using Aspen PlusTM. The process consists of gasification unit, heat recovery unit, gas purification unit, single-step DME synthesis, and DME separation unit. In the simulation, highly pure DME was produced by the control of CO2 concentration in syngas to a very low level prior to synthesis. A gasification system efficiency of 36.7% and CO2 emission of 1.31 kg/kg of DME were achieved. Bio-DME production based on CO2-enhanced gasification of biomass was found to be more cost

APA, Harvard, Vancouver, ISO, and other styles

45

Soto, Mauricio. "Facteurs liés à l’adoption du dossier médical électronique (DME): une étude de cas sur le processus d'implantation d’un DME dans un groupe de médecine de famille." Thèse, 2012. http://hdl.handle.net/1866/9218.

Full text

Abstract:

Dans l’espoir d'améliorer l'efficacité, l’efficience, la qualité et la sécurité des soins de santé, la plupart des pays investissent dans l’informatisation de leur système de santé. Malgré l’octroi de ressources substantielles, les projets d'implantation d’un Dossier médical électronique (DME) font parfois l’objet d’une résistance importante de la part des utilisateurs au moment de leur implantation sur le terrain. Pour expliquer l’adoption d’un DME par les professionnels de la santé, plusieurs modèles théoriques ont été développés et appliqués. Une diversité de facteurs agissant à différents

APA, Harvard, Vancouver, ISO, and other styles

46

Pereira, José. "Access of WetAMD and DME patients to treatment in public hospitals." Master's thesis, 2013. http://hdl.handle.net/10362/17428.

Full text

Abstract:

Degeneration (WetAMD) and Diabetic Macular Edema (DME) patients’ access to treatment in public hospitals, by identifying bottlenecks and stress points that prevent timely and adequate care to patients who suffer from a degenerative disease, and consequently for whom the lack of access to treatment can have disastrous consequences. Considering the specificity and degenerative traits of these conditions, the long queues for specialty appointments in public hospitals are a significant threat to patients’ health, as the disease may be misdiagnosed and or progress significantly, causing unnecessar

APA, Harvard, Vancouver, ISO, and other styles

47

OSTROUMOV, Ivan Victorovich. "Расчет зоны действия и точности наземных радиомаяков DME для аэропорта «Киев»". Thesis, 2017. http://er.nau.edu.ua/handle/NAU/27272.

Full text

Abstract:

Существует необходимость обеспечения точности при определении местоположения воздушного судна в процессе использования такой альтернативной навигационной системы как всенаправленный дальномерный радиомаяк. Расчет зоны действия и точности наземных радиомаяков DME проведен на примере аэропорта «Киев».

APA, Harvard, Vancouver, ISO, and other styles

48

Ye, Wei-Yang, and 葉蔚揚. "Plasma-assisted preparation of Cu/ZnO/Al2O3 catalyst for DME synthesis." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/76972629838433476267.

Full text

Abstract:

碩士<br>中原大學<br>化學工程研究所<br>100<br>In this work, a novel radio frequency (RF) glow discharge plasma modified Cu/ZnO/Al2O3 catalysts were prepared by conventional coprecipitation method, with the goal to improve its performance on the dimethly ether synthesis from syngas. Not only plasma modified process, the feasibility of using plasma to replace traditional calcination process were also investigated. To further understand the interplay between plasma species and catalyst surface, we used optical emission spectroscopy (OES) as a diagnostic tool to observe the concentration of active species in th

APA, Harvard, Vancouver, ISO, and other styles

49

Chen, You Syuan, and 陳宥亘. "Steady-State and Dynamic Modeling of Dimethyl Ether(DME) Synthesis from Syngas." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/77qm86.

Full text

Abstract:

碩士<br>長庚大學<br>化工與材料工程研究所<br>96<br>Dimetyl ether (DME) has wide application, such as solvent, propellant, chemical intermediate, refrigerant replacement, LPG substitute and transportation fuel. Recently, dimethyl ether has attracted attention as an alternative fuel for diesel engines and LPG substitute. Because it can emit much less pollutants such as CO, NOx and particulate, dimethyl ether really meets the standards for clean fuel. In the future, DME will be much used in fuel industries. Traditionally, in industrial processes, DME is produced by dehydration of methanol using acidic porous c

APA, Harvard, Vancouver, ISO, and other styles

50

林昀達. "On reducing clock network power consumption by low-swing DME buffering technique." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/66865847463512244397.

Full text

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!