Download or read book Etudes des m canismes de la fonctionnalisation s lective des hydrocarbures satur s written by Béatrice Chabot and published by . This book was released on 1996 with total page 194 pages. Available in PDF, EPUB and Kindle. Book excerpt: LA FONCTIONNALISATION SELECTIVE DES HYDROCARBURES SATURES PAR DES SYSTEMES COMPOSES DE COMPLEXES DE FER (FE#I#I OU FE#I#I#I), D'UN ACIDE CARBOXYLIQUE ET DE PEROXYDE D'HYDROGENE DANS LA PYRIDINE (AVEC OU SANS ACIDE ACETIQUE) EST ETUDIEE DEPUIS 1983 (SYSTEMES DE GIF). L'INFLUENCE ET LA REACTIVITE DE PIEGES A RADICAUX TELS QUE LA 2-METHYL-1,4-NAPHTOQUINONE, LES DERIVES SELENIES ET SOUFRES ET LE TEMPO DANS LES DIFFERENTS SYSTEMES DE GIF ONT ETE ETUDIEES. LA CAPACITE A PIEGER CES DIFFERENTS PIEGES A RADICAUX N'EST OBTENUE QUE LORSQUE LE FE#I#I EST PRESENT DANS LA REACTION, SOIT AU DEPART, SOIT PAR REDUCTION DU FE#I#I#I PAR UN AGENT REDUCTEUR. LES RESULTATS DE CETTE ETUDE ONT PERMIS AINSI DE CONFIRMER LA PRESENCE DE DEUX COUPLES DIFFERENTS DANS LA CHIMIE DE GIF: LE COUPLE FE#I#I-FE#I#V QUI PERMET L'OBTENTION DE PRODUITS HALOGENES AVEC COMME INTERMEDIAIRE UN RADICAL ALKYLE, ET LE COUPLE FE#I#I#I-FE#V, QUI PERMET UNIQUEMENT LA FORMATION DES PRODUITS D'OXYDATION. AUCUN INTERMEDIAIRE DE TYPE RADICALAIRE N'EST PRESENT DANS LA REACTION PRODUITE PAR CE COUPLE. LE REACTIF PEROXYDE DE BIS(TRIMETHYLSILYLE) UTILISE EN PRESENCE D'UN CATALYSEUR DE FE#I#I#I ET D'UN ACIDE CARBOXYLIQUE EST CAPABLE D'OXYDER LES HYDROCARBURES SATURES MAJORITAIREMENT EN CETONES. LA REGIOSELECTIVITE ET LA CHEMIOSELECTIVITE SONT SIMILAIRES AUX SYSTEMES DE GIF UTILISANT LE PEROXYDE D'HYDROGENE COMME OXYDANT. UNE ESPECE DE FER A HAUT DEGRE D'OXYDATION EST PROPOSEE COMME ETANT RESPONSABLE DE L'ACTIVATION DE L'HYDROCARBURE. L'UTILISATION D'UN SEL DE FE#I#I COMME CATALYSEUR PERMET LA FORMATION DE DERIVES HALOGENES. LES CARACTERISTIQUES SONT SIMILAIRES A CELLES OBSERVEES LORS DE L'UTILISATION DU PEROXYDE D'HYDROGENE, AVEC COMME DIFFERENCES LA PRESENCE NON OBLIGATOIRE D'UN ACIDE CARBOXYLIQUE COMME LIGAND ET LA PLUS GRANDE STABILITE DE L'INTERMEDIAIRE RESPONSABLE DE L'ACTIVATION DE L'HYDROCARBURE

Download or read book Faecal Sludge Management written by Linda Strande and published by IWA Publishing. This book was released on 2014-08-15 with total page 428 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Download or read book Diffusion in Zeolites and Other Microporous Solids written by Jörg Kärger and published by Wiley-Interscience. This book was released on 1992-05-07 with total page 702 pages. Available in PDF, EPUB and Kindle. Book excerpt: Summarizes and reviews both the major experimental techniques and theories that have been developed and applied in the study of diffusion in microporous solids. Covers the most important works--including those published in eastern bloc countries that have received limited coverage in the west--available on the subject today. Provides a theoretical framework, experimental methods and a comprehensive review of experimental data that illustrates the application of those methods. Additionally, it offers a summary of technological aspects of diffusion limited processes. S.I. Units as well as Torr and the atmosphere as units of pressure are used throughout.

Download or read book Varicocele and Male Infertility written by Alaa Hamada and published by Springer. This book was released on 2015-12-07 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt: This SpringerBrief analyzes varicocele from a novel approach, and provides the reader with a comprehensive view of its scientific and clinical significance. The Brief covers all the important aspects of varicocele related to infertility, from epidemiology to assisted reproduction techniques, contemplating pathophysiology, semen analysis, specialized sperm function tests, and clinical management including all available treatment options form three distinct perspectives, i.e., current concepts, consensus and controversies. Each topic is addressed using the same template, offering the best information from all angles to readers. This SpringerBrief is aimed at both clinicians and scientists involved in the study and care of male and female fertility, and is written by a team of three internationally recognized authors with expertise in andrology and male infertility. The text is the first of its kind, and presents an invaluable tool both for the basic scientists with an interest in reproductive medicine and for clinicians working in the field of infertility.

Download or read book Vitreous Substitutes written by Gholam A. Peyman and published by McGraw-Hill/Appleton & Lange. This book was released on 1995 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Nanocasting written by An-Hui Lu and published by Royal Society of Chemistry. This book was released on 2010 with total page 279 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nanostructured materials with tailored properties are regarded as a fundamental element in the development of future science and technology. Research is still ongoing into the nanosized construction elements required to create functional solids. The recently developed technique, nanocasting, has great advantage over others in terms of the synthesis of special nanostructured materials by the careful choice of suitable elements and nanoengineering steps. This new book summarizes the recent developments in nanocasting, including the principles of nanocasting, syntheses of novel nanostructured materials, characterization methods, detailed synthetic recipes and further possible development in this area. The book focuses on the synthesis of porous solids from the viewpoint of methodology and introduces the science of nanocasting from fundamental principles to their use in synthesis of various materials. It starts by outlining the principles of nanocasting, requirements to the templates and precursors and the tools needed to probe matter at the nanoscale level. It describes how to synthesize nano structured porous solids with defined characteristics and finally discusses the functionalization and application of porous solids. Special attention is given to new developments in this field and future perspectives. A useful appendix covering the detailed synthetic recipes of various templates including porous silica, porous carbon and colloidal spheres is included which will be invaluable to researchers wanting to follow and reproduce nanocast materials. Topics covered in the book include: * inorganic chemistry * organic chemistry * solution chemistry * sol-gel and interface science * acid-base equilibria * electrochemistry * biochemistry * confined synthesis The book gives readers not only an overview of nanocasting technology, but also sufficient information and knowledge for those wanting to prepare various nanostructured materials without needing to search the available literature.

Download or read book Adsorption Equilibrium Data Handbook written by Diego P. Valenzuela and published by . This book was released on 1989 with total page 396 pages. Available in PDF, EPUB and Kindle. Book excerpt: Very Good,No Highlights or Markup,all pages are intact.

Download or read book How to Design Wastewater Systems for Local Conditions in Developing Countries written by David M. Robbins and published by IWA Publishing. This book was released on 2014-03-15 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is a practical handbook providing a step-by-step approach to the techniques used for characterizing wastewater sources and investigating sites where collection, treatment and reuse/disposal technologies will be installed. It is intended to help enable local implementation of on-site and decentralized wastewater management system (DWMS)for wide scale use in development settings. How to Design Wastewater Systems for Local Conditions in Developing Countries helps local service providers and regulatory officials make informed decisions through the use of tools, checklists and case studies. It includes a link to a web based community of on-site and decentralized wastewater professionals, which contains related tools and case studies. This handbook serves as a reference for training classes, certification programs, and higher education programs in civil and sanitary engineering. There is an increasing interest on the part of local government officials and private sector service providers to implement wastewater treatment systems to solve sanitation problems. The model presented in this handbook promotes activities that first generate data related to source and site conditions that represent critical inputs, and then applies this information to the technology selection process. Matching the most appropriate technologies to the specific needs of the wastewater project is the key that leads to long term sustainability. How to Design Wastewater Systems for Local Conditions in Developing Countries is an invaluable resource for public sector decision makers and private sector service providers in developing countries. It is also a useful text for students at engineering colleges in developing countries interested in taking a class that teaches the methods of decentralized wastewater management system (DWMS) development.

Download or read book X Ray and Neutron Reflectivity Principles and Applications written by Jean Daillant and published by Springer Science & Business Media. This book was released on 2003-07-01 with total page 347 pages. Available in PDF, EPUB and Kindle. Book excerpt: The reflection of and neutrons from surfaces has existed as an x-rays exp- imental for almost it is in the last technique fifty Nevertheless, only years. decade that these methods have become as of enormously popular probes This the surfaces and interfaces. to be due to of several appears convergence of intense different circumstances. These include the more n- availability be measured orders tron and sources that can over (so reflectivity x-ray many of and the much weaker surface diffuse can now also be magnitude scattering of thin films and studied in some the detail); growing importance multil- basic the realization of the ers in both and technology research; important which in the of surfaces and and role roughness plays properties interfaces; the of statistical models to characterize the of finally development topology its and its characterization from on roughness, dependence growth processes The of and to surface scattering experiments. ability x-rays neutro4s study four five orders of in scale of surfaces over to magnitude length regardless their and also their to ability probe environment, temperature, pressure, etc. , makes these the choice for buried interfaces often probes preferred obtaining information about the microstructure of often in statistical a global surfaces, the local This is manner to complementary imaging microscopy techniques, of such studies in the literature witnessed the veritable by explosion published the last few Thus these lectures will useful for over a resource years.

Download or read book Compendium of Sanitation Systems and Technologies written by Elizabeth Tilley and published by . This book was released on 2014 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Geology of Carbonatite alkalic Rock Complexes in Ontario written by R. P. Sage and published by . This book was released on 1988 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Poohbah Lake Alkalic rock complex lies within Quetico Provincial Park approximately 19 km north of the United States-Canada border. The complex was mapped using canoe and paddle. Representative samples of the various lithologies were selected for thin sectioning. Those samples selected for complete rock analysis were stained for potassium to aid in the identification of potassium feldspar in thin section. This report presents both general and economic geology, and includes recommendations for prospectors.

Download or read book Landscapes and Landforms of Belgium and Luxembourg written by Alain Demoulin and published by Springer. This book was released on 2017-08-25 with total page 426 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides an informative and intriguing overview of the most scenic landscapes of Belgium and Luxembourg. Geodiversity is emphasized, for example the periglacial features in the Hautes Fagnes area, the planation surfaces in the Ardennes and Oesling, and the famous caves of Han/Lesse and Remouchamps. The book’s chief goals are to provide the reader with enjoyable and informative descriptions of the selected sites within their regional geographical and geological settings; to offer an up-to-date survey of the evolution of Belgium’s and Luxembourg’s landscape; and to share additional information on the cultural value of the respective sites wherever appropriate. The book is a richly illustrated reference work that makes accessible for the first time a wealth of information currently scattered among many national and regional journals. It will benefit earth scientists, environmental scientists, tourism geographers and conservationists alike.

Download or read book Mineral Deposits of North Africa written by Mohammed Bouabdellah and published by Springer. This book was released on 2016-06-21 with total page 585 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume presents an exhaustive overview of major orebodies and mineral deposits of North Africa. It is intended both for academic researchers and especially for exploration geologists interested in mineral exploration in the northern part of the African continent. Recent changes in the mining laws of most countries in this region have encouraged international mining companies to invest in local mineral industries. Accordingly, this volume will be very useful for these professionals, as well as for researchers in the field of economic geology.

Download or read book Industrial Uses of Large Radiation Sources written by International Atomic Energy Agency and published by . This book was released on 1963 with total page 440 pages. Available in PDF, EPUB and Kindle. Book excerpt: