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Book Description
L'ETUDE PORTE SUR LES TRANSPORTS DE CHALEUR ET DE MASSE AYANT LIEU AU SEIN D'UN MILIEU POREUX LORS DE SON SECHAGE. A PARTIR D'UNE MODELISATION TRES COMPLETE, DES CODES DE CALCUL 1D ET 2D SONT MIS AU POINT POUR SIMULER EFFICACEMENT LES PHENOMENES INTERNES. UN NOUVEAU CHOIX D'INCONNUES CONDUIT A UNE ECRITURE DES EQUATIONS SOUS UNE FORME CONSERVATIVE. CETTE PROPRIETE ET UN SCHEMA D'INTEGRATION NUMERIQUE ADAPTE AUX NON-LINEARITES ET AU COUPLAGE DES EQUATIONS ASSURE LA PRECISION. UNE METHODE DE GESTION DU PAS DE TEMPS PROCURE UNE BONNE VITESSE DE RESOLUTION TOUT EN PRESERVANT LA QUALITE DES SOLUTIONS. CES OUTILS PERMETTENT UNE ANALYSE FINE DE LA TRANSITION ENTRE LE REGIME D'ECOULEMENT CAPILLAIRE ET LE REGIME DE DIFFUSION-SORPTION. ON MET ALORS EN EVIDENCE LES IMPERFECTIONS DU MODELE COMMUNEMENT ADMIS POUR PRENDRE EN COMPTE LE CARACTERE HYGROSCOPIQUE D'UN MATERIAU. LE CODE 1D EST ENSUITE UTILISE EN PARALLELE AVEC DES EXPERIENCES POUR PROPOSER UNE METHODOLOGIE D'ESTIMATION DES PERMEABILITES RELATIVES, PARAMETRES PHENOMENOLOGIQUES CLES DU MODELE, NON ACCESSIBLES PAR MESURE DIRECTE
Book Description
L'ETUDE PORTE SUR LES TRANSPORTS DE CHALEUR ET DE MASSE AYANT LIEU AU SEIN D'UN MILIEU POREUX LORS DE SON SECHAGE. A PARTIR D'UNE MODELISATION TRES COMPLETE, DES CODES DE CALCUL 1D ET 2D SONT MIS AU POINT POUR SIMULER EFFICACEMENT LES PHENOMENES INTERNES. UN NOUVEAU CHOIX D'INCONNUES CONDUIT A UNE ECRITURE DES EQUATIONS SOUS UNE FORME CONSERVATIVE. CETTE PROPRIETE ET UN SCHEMA D'INTEGRATION NUMERIQUE ADAPTE AUX NON-LINEARITES ET AU COUPLAGE DES EQUATIONS ASSURE LA PRECISION. UNE METHODE DE GESTION DU PAS DE TEMPS PROCURE UNE BONNE VITESSE DE RESOLUTION TOUT EN PRESERVANT LA QUALITE DES SOLUTIONS. CES OUTILS PERMETTENT UNE ANALYSE FINE DE LA TRANSITION ENTRE LE REGIME D'ECOULEMENT CAPILLAIRE ET LE REGIME DE DIFFUSION-SORPTION. ON MET ALORS EN EVIDENCE LES IMPERFECTIONS DU MODELE COMMUNEMENT ADMIS POUR PRENDRE EN COMPTE LE CARACTERE HYGROSCOPIQUE D'UN MATERIAU. LE CODE 1D EST ENSUITE UTILISE EN PARALLELE AVEC DES EXPERIENCES POUR PROPOSER UNE METHODOLOGIE D'ESTIMATION DES PERMEABILITES RELATIVES, PARAMETRES PHENOMENOLOGIQUES CLES DU MODELE, NON ACCESSIBLES PAR MESURE DIRECTE
Author: Ian Turner Publisher: CRC Press ISBN: 148229219X Category : Science Languages : en Pages : 696
Book Description
Offers information necessary for the development of mathematical models and numerical techniques to solve specific drying problems. The book addresses difficult issues involved with the drying equations of numerical analysis, including mesh generation, discretinization strategies, the nonlinear equation set and the linearized algebraic system, convergance criteria, time step control, experimental validation, optimum methods of visualization results, and more.
Author: S. Krall Publisher: Birkhäuser ISBN: 3034892020 Category : Technology & Engineering Languages : en Pages : 487
Book Description
In the late eighties large-scale control operations were carried out to control a major desert locust upsurge in Africa. For the first time since the banning of organochlorine pesticides these operations relied mainly on non-persistent pesticides such as organophosphates and pyrethroids. The amount of pesticides sprayed and the area covered were probably the highest in the history of locust control and raised criticism with respect to efficacy, economic viability and environmental impact. As a consequence, applied research into the problem was intensified, both at the national and the international level, with the goal of finding new and environmentally sound approaches and solutions to locust and grasshopper control. Emphasis was laid on developing new control agents and techniques.
Author: Ahmed Belasri Publisher: Springer Nature ISBN: 9811554447 Category : Technology & Engineering Languages : en Pages : 659
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: Pacific Forestry Centre Publisher: ISBN: 9780662426233 Category : Forest management Languages : en Pages : 304
Book Description
"This book presents a synthesis of published information on mountain pine beetle (Dendroctonus ponderosae Hopkins [Coleoptera: Scolytidae]) biology and management with an emphasis on lodgepole pine (Pinus contorta Dougl. ex Loud. var. latifolia Engelm.) forests of western Canada. Intended as a reference for researchers as well as forest managers, the book covers three main subject areas: mountain pine beetle biology, management, and socioeconomic concerns. The chapters on biology cover taxonomy, life history and habits, distribution, insect-host tree interactions, development and survival, epidemiology, and outbreak history. The management section covers management strategy, survey and detection, proactive and preventive management, and decision support tools. The chapters on socioeconomic aspects include an economic examination of management programs and the utilization of post-beetle salvage timber in solid wood, panelboard, pulp and paper products."--Publisher's description.
Author: Frédéric Couture
Author: Frédéric Couture
Author: Ian Turner
Author: Alain Cloutier
Author: Francois Pierronne
Author: 
Author: France. Commissariat à l'énergie atomique (CEA)
Author: S. Krall
Author: Ahmed Belasri
Author: M. H. Hamza
Author: Pacific Forestry Centre