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Author: NATHALIE.. KOPYTKO
Publisher:
ISBN:
Category :
Languages : fr
Pages : 114
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LE BUT DE CE TRAVAIL DE THESE ETAIT D'ETUDIER LES REACTIONS CHIMIQUES DU METHANE EXCITE DANS UNE DECHARGE MICRO-ONDES, A BASSE PRESSION, DE MANIERE A FORMER UN PLASMA FROID. NOUS NOUS SOMMES PRINCIPALEMENT INTERESSES AUX PRODUITS OBTENUS PAR LA REACTION CHIMIQUE DU METHANE, EN PARTICULIER LES HYDROCARBURES EN C#2. NOUS AVONS ETUDIE D'ABORD LE PLASMA DE METHANE PUR. APRES LA MISE AU POINT DE L'INSTALLATION, NOUS AVONS EFFECTUE UNE ETUDE PARAMETRIQUE (INFLUENCE DU TEMPS DE PASSAGE DES GAZ DANS LE REACTEUR DE LA PUISSANCE MICRO-ONDES INCIDENTE, DU DEBIT ET DE LA PRESSION DE METHANE). NOUS AVONS ENSUITE EXAMINE DANS QUELLE MESURE LES MECANISMES REACTIONNELS SIMPLIFIES PROPOSES DANS LA LITTERATURE POUVAIENT CORRESPONDRE A NOS RESULTATS EXPERIMENTAUX. NOUS AVONS ENSUITE BRIEVEMENT ETUDIE LES PLASMAS METHANE-HYDROGENE, METHANE-OXYGENE ET METHANE-DIOXYDE DE CARBONE. NOUS AVONS COMPARE NOS RESULTATS AVEC CEUX OBTENUS PAR UNE AUTRE METHODE PLASMA DE TRANSFORMATION DU METHANE AINSI QU'AVEC CEUX RESULTANT D'AUTRES PROCEDES DE VALORISATION DIRECTE DU METHANE ACTUELLEMENT A L'ETUDE. NOUS AVONS DETERMINE QUELLES ETAIENT LES DIRECTIONS DE RECHERCHE A ENVISAGER POUR UNE SUITE DE CE TRAVAIL
Author: NATHALIE.. KOPYTKO
Publisher:
ISBN:
Category :
Languages : fr
Pages : 114
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Book Description
LE BUT DE CE TRAVAIL DE THESE ETAIT D'ETUDIER LES REACTIONS CHIMIQUES DU METHANE EXCITE DANS UNE DECHARGE MICRO-ONDES, A BASSE PRESSION, DE MANIERE A FORMER UN PLASMA FROID. NOUS NOUS SOMMES PRINCIPALEMENT INTERESSES AUX PRODUITS OBTENUS PAR LA REACTION CHIMIQUE DU METHANE, EN PARTICULIER LES HYDROCARBURES EN C#2. NOUS AVONS ETUDIE D'ABORD LE PLASMA DE METHANE PUR. APRES LA MISE AU POINT DE L'INSTALLATION, NOUS AVONS EFFECTUE UNE ETUDE PARAMETRIQUE (INFLUENCE DU TEMPS DE PASSAGE DES GAZ DANS LE REACTEUR DE LA PUISSANCE MICRO-ONDES INCIDENTE, DU DEBIT ET DE LA PRESSION DE METHANE). NOUS AVONS ENSUITE EXAMINE DANS QUELLE MESURE LES MECANISMES REACTIONNELS SIMPLIFIES PROPOSES DANS LA LITTERATURE POUVAIENT CORRESPONDRE A NOS RESULTATS EXPERIMENTAUX. NOUS AVONS ENSUITE BRIEVEMENT ETUDIE LES PLASMAS METHANE-HYDROGENE, METHANE-OXYGENE ET METHANE-DIOXYDE DE CARBONE. NOUS AVONS COMPARE NOS RESULTATS AVEC CEUX OBTENUS PAR UNE AUTRE METHODE PLASMA DE TRANSFORMATION DU METHANE AINSI QU'AVEC CEUX RESULTANT D'AUTRES PROCEDES DE VALORISATION DIRECTE DU METHANE ACTUELLEMENT A L'ETUDE. NOUS AVONS DETERMINE QUELLES ETAIENT LES DIRECTIONS DE RECHERCHE A ENVISAGER POUR UNE SUITE DE CE TRAVAIL
Author: AHMED.. OUMGHAR
Publisher:
ISBN:
Category :
Languages : fr
Pages :
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Book Description
LES RESERVES DU GAZ NATUREL MISES A JOUR CROISSENT REGULIEREMENT ALORS QUE CELLES DU PETROLE SEMBLENT ATTEINDRE UN PALIER. CECI DONNE UNE IMPORTANCE CROISSANTE AU GAZ NATUREL COMME MATIERE PREMIERE DES INDUSTRIES CHIMIQUES. LA TRANSFORMATION DU GAZ NATUREL EN PRODUITS PLUS LOURDS EST REALISEE A L'AIDE DE L'ENERGIE ELECTRIQUE: LE METHANE COMPOSANT MAJORITAIRE DU GAZ NATUREL REAGIT AVEC UN PLASMA D'AIR OU D'AZOTE CREE PAR UN GENERATEUR DE MICRO-ONDES A 2450 MHZ. LA REACTION ABOUTIT A LA FORMATION PRINCIPALEMENT DES PRODUITS EN C#2(C#2H#6, C#2H#4, C#2H#2), DE PRODUIT EN C#3(C#3H#8), DU MONOXYDE DE CARBONE ET DE L'HYDROGENE. L'OPTIMISATION DE CE PROCEDE EST REALISEE EN FAISANT VARIER PLUSIEURS PARAMETRES EXPERIMENTAUX A SAVOIR: STCHIOMETRIE DE LA REACTION D'OXYDATION DU METHANE, TEMPS DE SEJOUR, TEMPS AU BOUT DUQUEL LE PLASMA AGIT SUR LE METHANE, PRESSION DU MILIEU REACTIONNEL, PUISSANCE. LA FORMATION DES PRODUITS FAIT L'OBJET D'UNE DISCUSSION DES MECANISMES REACTIONNELS. PLUSIEURS CATALYSEURS ONT ETE INTRODUITS DANS LA POST-DECHARGE ET LEURS PERFORMANCES ONT ETE COMPAREES
Author: Ahmed Belasri
Publisher: Springer Nature
ISBN: 9811554447
Category : Technology & Engineering
Languages : en
Pages : 659
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Book Description
This book highlights peer reviewed articles from the 1st International Conference on Renewable Energy and Energy Conversion, ICREEC 2019, held at Oran in Algeria. It presents recent advances, brings together researchers and professionals in the area and presents a platform to exchange ideas and establish opportunities for a sustainable future. Topics covered in this proceedings, but not limited to, are photovoltaic systems, bioenergy, laser and plasma technology, fluid and flow for energy, software for energy and impact of energy on the environment.
Author: International Livestock Research Institute
Publisher: ILRI (aka ILCA and ILRAD)
ISBN: 9789291460038
Category : Animal industry
Languages : en
Pages : 268
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Book Description
Policy concepts; Identification of policy issues; Production systems, supply and demand; Market, price and trade policies; Marketing and distribution systems; Budget and manpower planning; Land tenure police for the livestock sector; Policy analysis report writing and communication; Livestock production and marketing in alphabeta - a case study.
Author: Biodiesel Production Technologies Challenges and Future Prospects Task Committee
Publisher:
ISBN: 9780784415344
Category : Biodiesel fuels
Languages : en
Pages : 848
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Book Description
Biodiesel Production: Technologies, Challenges, and Future Prospects provides in-depth information on fundamentals, approaches, technologies, source materials and associated socio-economic and political impacts of biodiesel production.
Author: Ismail Serageldin
Publisher: CABI
ISBN: 9780851996752
Category : Technology & Engineering
Languages : en
Pages : 340
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Book Description
Based on the first scientific conference convened at the Library of Alexandria, 'Biotechnology and Sustainable Development: Voices of the South and North', which was held in Alexandria, Egypt, in March 2002, this book contains overviews of agriculture, health, ethics and the environment. It discusses how dramatic improvements in food security, health, and lifestyle could accrue to the poor people of developing countries through the applications of new technologies.
Author: Agnes Buka
Publisher: World Scientific
ISBN: 1848167997
Category : Science
Languages : en
Pages : 299
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Book Description
The book intends to give a state-of-the-art overview of flexoelectricity, a linear physical coupling between mechanical (orientational) deformations and electric polarization, which is specific to systems with orientational order, such as liquid crystals. Chapters written by experts in the field shed light on theoretical as well as experimental aspects of research carried out since the discovery of flexoelectricity. Besides a common macroscopic (continuum) description the microscopic theory of flexoelectricity is also addressed. Electro-optic effects due to or modified by flexoelectricity as well as various (direct and indirect) measurement methods are discussed. Special emphasis is given to the role of flexoelectricity in pattern-forming instabilities. While the main focus of the book lies in flexoelectricity in nematic liquid crystals, peculiarities of other mesophases (bent-core systems, cholesterics, and smectics) are also reviewed. Flexoelectricity has relevance to biological (living) systems and can also offer possibilities for technical applications. The basics of these two interdisciplinary fields are also summarized.
Author: Igor Bezverkhyy
Publisher: Trans Tech Publications Ltd
ISBN: 3038137030
Category : Technology & Engineering
Languages : en
Pages : 600
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Book Description
The International Conference on Diffusion in Materials (DIMAT) is the benchmark conference series for diffusion in solids. DIMAT 2011 was organized by the University of Bourgogne in association with CNRS, Dijon (France). The conference showcased new results concerning theoretical tools as well as applied research approaches. Diffusion processes affect all types of materials: nanomaterials, materials for energy, metallurgy, glasses and ceramics, but each requires its own numerical tools. Volume is indexed by Thomson Reuters CPCI-S (WoS). This volume comprises most of the contributions presented at DIMAT 2011: 4 plenary lectures delivered by famous high-level scientists plus 88 contributions in the form of keynote lectures, talks and posters.
Author: Georgeta Raţă
Publisher: Cambridge Scholars Publishing
ISBN: 1443839612
Category : Foreign Language Study
Languages : en
Pages : 385
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Book Description
Agricultural English is a collection of essays on the English of Agriculture. The approach is a linguistic one: the different aspects of the English used in the field of agriculture (agricultural practices, agricultural systems) and in some fields related to agriculture (agricultural zoology, agri-tourism, biology, botany, ecology, entomology, gastronomy, land measurement, plant pathology, zoology) are analysed from a morphological (combination, derivation), syntactical (nominal phrases, verbal phrases), lexical and lexicographical, semantic (homonymy, semantic fields, synonymy, terminology), pragmatic (academic discourse, idiom, metaphor), etymological (etymon, Latin heritage), and contrastive (English–Croatian, English–French, English–German, English–Romanian, Romanian–English) points of view. The book will appeal to agriculturists, animal breeders, professors, researchers, students, and translators from Croatian-, English-, French-, German-, and Romanian-speaking countries, active in their own countries or abroad. The types of academic readership it would appeal to include academic teaching staff, researchers and students in the fields of agriculture and related fields – agricultural zoology, agri-tourism, biology, botany, ecology, entomology, gastronomy, land measurement, plant pathology, and zoology.
Author:
Publisher:
ISBN:
Category :
Languages : fr
Pages : 172
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