Etude expérimentale du séchage de denrées agro-alimentaires en vue de l'optimisation d'un séchoir solaire PDF Download
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Author: Jean-Yves Quinette
Publisher:
ISBN:
Category :
Languages : fr
Pages : 288
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Book Description
Author: Jean-Yves Quinette
Publisher:
ISBN:
Category :
Languages : fr
Pages : 288
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Book Description
Author: Djamel Mennouche
Publisher: Editions Universitaires Europeennes
ISBN: 9783841733351
Category :
Languages : fr
Pages : 124
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Book Description
L'energie solaire represente l'une des sources d'energie renouvelable. Elle est gratuite, inepuisable, non polluante et disponible en abondance dans la plupart des endroits du monde. L'utilisation de l'energie solaire pour des applications thermiques, a augmente en raison des fluctuations du prix des combustibles fossiles et du desequilibre ecologique. Le sechage solaire presente un procede de conservation et de valorisation qui favorise le stockage des aliments et qui utilise l'energie solaire comme source de chauffage. Il constitue un moyen pour minimiser la perte et l'amortissement du caractere saisonnier des produits agro-alimentaires. Ce travail presente une etude experimentale du sechage solaire d'une plante medicinale (Menthe verte), et d'un produit agro-alimentaire (la tomate). La procedure de sechage s'est deroulee dans un sechoir indirect a convection naturelle. Cette etude est constituee de deux parties essentielles, une partie theorique, englobant les phenomenes de transfert de chaleur, des generalites sur le sechage, et les differents types des sechoirs solaires. La deuxieme partie presente les resultats de l'etude experimentale.
Author: Driss Sounny Slitine
Publisher:
ISBN:
Category :
Languages : fr
Pages : 117
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Author: Jean-Rodolphe Puiggali
Publisher:
ISBN:
Category :
Languages : fr
Pages : 141
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Author:
Publisher:
ISBN: 9782868440143
Category : Agriculture
Languages : fr
Pages : 215
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Book Description
Author: Claudine Picq
Publisher: Bioversity International
ISBN:
Category : Agricultural productivity
Languages : en
Pages : 806
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Book Description
Importance de la banane sur les plans economique et alimentaire; Diversite et dynamique des filieres; Organisation des marches et commercialisation; Systemes de productions/production systems.
Author: Linda Strande
Publisher: IWA Publishing
ISBN: 1780404735
Category : Technology & Engineering
Languages : en
Pages : 428
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Book Description
It is estimated that literally billions of residents in urban and peri-urban areas of Africa, Asia, and Latin America are served by onsite sanitation systems (e.g. various types of latrines and septic tanks). Until recently, the management of faecal sludge from these onsite systems has been grossly neglected, partially as a result of them being considered temporary solutions until sewer-based systems could be implemented. However, the perception of onsite or decentralized sanitation technologies for urban areas is gradually changing, and is increasingly being considered as long-term, sustainable options in urban areas, especially in low- and middle-income countries that lack sewer infrastructures. This is the first book dedicated to faecal sludge management. It compiles the current state of knowledge of the rapidly evolving field of faecal sludge management, and presents an integrated approach that includes technology, management, and planning based on Sandecs 20 years of experience in the field. Faecal Sludge Management: Systems Approach for Implementation and Operation addresses the organization of the entire faecal sludge management service chain, from the collection and transport of sludge, and the current state of knowledge of treatment options, to the final end use or disposal of treated sludge. The book also presents important factors to consider when evaluating and upscaling new treatment technology options. The book is designed for undergraduate and graduate students, and engineers and practitioners in the field who have some basic knowledge of environmental and/or wastewater engineering.
Author: National Research Council
Publisher: National Academies Press
ISBN: 0309170435
Category : Nature
Languages : en
Pages : 241
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Book Description
Having safe drinking water is important to all Americans. The Environmental Protection Agency's decision in the summer of 2001 to delay implementing a new, more stringent standard for the maximum allowable level for arsenic in drinking water generated a great deal of criticism and controversy. Ultimately at issue were newer data on arsenic beyond those that had been examined in a 1999 National Research Council report. EPA asked the National Research Council for an evaluation of the new data available. The committee's analyses and conclusions are presented in Arsenic in Drinking Water: 2001 Update. New epidemiological studies are critically evaluated, as are new experimental data that provide information on how and at what level arsenic in drinking water can lead to cancer. The report's findings are consistent with those of the 1999 report that found high risks of cancer at the previous federal standard of 50 parts per billion. In fact, the new report concludes that men and women who consume water containing 3 parts per billion of arsenic daily have about a 1 in 1,000 increased risk of developing bladder or lung cancer during their lifetime.
Author: Barbara Sladonja
Publisher: BoD – Books on Demand
ISBN: 953510697X
Category : Science
Languages : en
Pages : 242
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Book Description
Protected areas are at the base of the most national and international conservation strategies. Due to the many unpredictable elements in ecology matters, each protected area requires a case-specific set of guidelines but a common issue is how to cope with human interaction. The management of protected areas is replete with challenges and the only way to gain understanding and achieve greater management possibilities is to exchange experiences and knowledge. Environmental managers are aware of that and together with scientists are looking for more modern and better solutions, both with respect to natural resources and human interactions in many issues regarding nature protection. This publication presents reviews and research results on protected areas management, as well as 12 case studies derived from around the world with the aim of improving management effectiveness of the protected areas.
Author: Matthias Finkbeiner
Publisher: Springer Science & Business Media
ISBN: 9400718993
Category : Science
Languages : en
Pages : 618
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Book Description
This book is a selection of the most relevant contributions to the LCM 2011 conference in Berlin. The material explores scientific and practical solutions to incorporating life cycle approaches into strategic and operational decision making. There are several sections addressing methodological topics such as LCSM approaches, methods and tools, while more application-oriented sections deal with the implementation of these approaches in relevant industrial sectors including agriculture and food, packaging, energy, electronics and ICT, and mobility.
