Evaporation d'une goutte sessile PDF Download

Author: Laura Grandas Martin
Publisher:
ISBN:
Category :
Languages : fr
Pages : 210

View

Book Description
Le phénomène d'évaporation intervient dans de nombreux processus naturels et applications industrielles (refroidissement, séchage). Ce mémoire traite de l'évaporation d'une goutte posée pour une meilleure compréhension des mécanismes physico chimiques régissant les transferts couplés chaleur - masse. Les cas étudiés ont porté sur une goutte d'eau bidistillée (5 mm3 [inférieur ou égal] V [inférieur ou égal] 70 mm3) posée sur deux surfaces chauffées (30 °C [inférieur ou égal] Tp [inférieur ou égal] 90 °C) de mouillabilité différente (aluminium et PTFE) par des méthodes optique et thermique. Les résultats expérimentaux ont permis de montrer que l'aplatissement des gouttes par les effets de gravité est sans influence dans la cinétique de l'évaporation. La nature et l'état de la surface n'influencent que l'angle de contact et le diamètre de mouillage initial. L'évaporation semble se produire préférentiellement au niveau de la ligne triple. Des simulations numériques du phénomène ont été réalisées et les résultats comparés à ceux obtenus par l'expérience

Author:
Publisher: McFarland
ISBN: 1476603936
Category : Literary Criticism
Languages : en
Pages : 861

View

Book Description
This expanded fourth edition defines and cross-references 9,040 homophones and 2,133 homographs (up from 7,870 and 1,554 in the 3rd ed.). As the most comprehensive compilation of American homophones (words that sound alike) and homographs (look-alikes), this latest edition serves well where even the most modern spell-checkers and word processors fail--although rain, reign, and rein may be spelled correctly, the context in which these words may appropriately be used is not obvious to a computer.

Author:
Publisher:
ISBN:
Category : Language Arts & Disciplines
Languages : en
Pages : 320

View

Book Description
Reviews of the first edition: The best roster of these phenomena--Wilson Library Bulletin; a good choice for any library--RQ. Now greatly expanded, the second edition includes over 7,000 (up from 3,500) homophones (words that sound alike) and over 1,400 (up from 600) homographs (look-alikes). Words are defined and cross referenced.

Author: International Livestock Research Institute
Publisher: ILRI (aka ILCA and ILRAD)
ISBN: 9789291460038
Category : Animal industry
Languages : en
Pages : 268

View

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: Deirdre Rooney
Publisher: CRC Press
ISBN: 1926895215
Category : Technology & Engineering
Languages : en
Pages : 247

View

Book Description
Changing land-use practices and the role of soil biological diversity has been a major focus of soil science research over the past couple of decades—a trend that is likely to continue. The information presented in this book points to a holistic approach to soil management. The first part looks at the land use effects on soil carbon storage, and considers a range of factors including carbon sequestration in soils. The second part of the book presents research investigating the interactions between soil properties, plant species, and the soil biota.

Author: Pan Ming Huang
Publisher: CRC Press
ISBN: 1439803080
Category : Science
Languages : en
Pages : 821

View

Book Description
An evolving, living organic/inorganic covering, soil is in dynamic equilibrium with the atmosphere above, the biosphere within, and the geology below. It acts as an anchor for roots, a purveyor of water and nutrients, a residence for a vast community of microorganisms and animals, a sanitizer of the environment, and a source of raw materials for co

Author: Sandra Knowles Weller
Publisher: Caister Academic Press Limited
ISBN: 9781904455769
Category : Science
Languages : en
Pages : 0

View

Book Description
Alphaherpesviruses are a fascinating group of DNA viruses that includes important human pathogens such as herpes simplex virus type 1 (HSV-1), HSV-2, and varicella-zoster virus (VZV): the causative agents of cold sores, genital ulcerous disease, and chickenpox/shingles, respectively. A key attribute of these viruses is their ability to establish lifelong latent infection in the peripheral nervous system of the host. Such persistence requires subversion of the host's immune system and intrinsic antiviral defense mechanisms. Understanding the mechanisms of the immune evasion and what triggers viral reactivation is a major challenge for today's researchers. This has prompted enormous research efforts into understanding the molecular and cellular biology of these viruses. This up-to-date and comprehensive volume aims to distill the most important research in this area providing a timely overview of the field. Topics covered include: transcriptional regulation, DNA replication, translational control, virus entry and capsid assembly, the role of microRNAs in infection and oncolytic vectors for cancer therapy. In addition there is coverage of virus-host interactions, including apoptosis, subversion of host protein quality control and DNA damage response pathways, autophagy, establishment and reactivation from latency, interferon responses, immunity and vaccine development. Essential reading for everyone working with alphaherpesviruses and of interest to all virologists working on latent infections.

Author: Alain Boutier
Publisher: John Wiley & Sons
ISBN: 1118576950
Category : Science
Languages : en
Pages : 263

View

Book Description
In fluid mechanics, non-intrusive measurements are fundamental in order to improve knowledge of the behavior and main physical phenomena of flows in order to further validate codes. The principles and characteristics of the different techniques available in laser metrology are described in detail in this book. Velocity, temperature and concentration measurements by spectroscopic techniques based on light scattered by molecules are achieved by different techniques: laser-induced fluorescence, coherent anti-Stokes Raman scattering using lasers and parametric sources, and absorption spectroscopy by tunable laser diodes, which are generally better suited for high velocity flows. The size determination of particles by optical means, a technique mainly applied in two-phase flows, is the subject of another chapter, along with a description of the principles of light scattering. For each technique the basic principles are given, as well as optical devices and data processing. A final chapter reminds the reader of the main safety precautions to be taken when using powerful lasers.

Author: Georgeta Raţă
Publisher: Cambridge Scholars Publishing
ISBN: 1443839612
Category : Foreign Language Study
Languages : en
Pages : 385

View

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: Mohammad Hassan Roozitalab
Publisher: Springer
ISBN: 3319690485
Category : Nature
Languages : en
Pages : 257

View

Book Description
This unique book addresses Iran’s extremely rich soil diversity and resources, which have developed under various climatic conditions ranging from dry to humid conditions. Featuring contributions by a group of respected experts on Iranian soils and agriculture, it provides comprehensive information on the management approaches needed for sustainable soil utilization and conservation under such conditions, and the attendant challenges. As such, it offers a valuable resource for anyone interested in soils and agriculture in Iran, but also in other Middle East and North African countries with similar climatic conditions. The book contains 14 chapters which illustrate the long history of indigenous knowledge and soil research, climate, geology and geomorphology, vegetation cover, soil forming factors and processes, major soils, properties and their classification. Furthermore, it presents past climate change and paleosols, agroecological zones, soil fertility, soil biology and biotechnology, human induced land degradation and “soil management in space and time”. In the end, major challenges facing the soil resources of the country are defined and recommendations are made to face the future challenges.