Download or read book Les proc d s d oxydation avanc e dans le traitement des eaux written by Malika Mokhtari and published by Omniscriptum. This book was released on 2012 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt: Le 4-Nitroph nol (4-NP) est utilis dans la fabrication des teintures, des textiles, des pesticides et des produits destin s aux applications militaires. C'est galement un interm diaire de synth se et un produit de d gradation des produits pharmaceutiques (exemple: parac tamol). Cette substance p n tre dans l'environnement par les eaux us es et agricoles ce qui entraine des probl mes cologiques et sanitaires tels que: l' cotoxicit , m th moglobin mie, carcinogen se, immunotoxicit , etc.... Ce travail consiste en l' tude de l' limination du 4-Nitroph nol par des proc d s d'oxydation avanc e savoir, le proc d Fenton (Fe2+/H2O2), la photolyse directe (UV), UV/Fe2+, UV/H2O2, le photo-Fenton (UV/H2O2/Fe2+), la photocatalyse h t rog ne (UVartificielle/TiO2 et UVsolaire/TiO2). L' limination du 4-NP a t suivie par spectrophotom trie UV/Vis et sa min ralisation est valoris e par la mesure de la demande chimique en oxyg ne (DCO). Les r sultats trouv s montrent que le meilleur proc d d'oxydation utilis est le proc d photo-Fenton.
Download or read book Advances in Solid State Fermentation written by S. Roussos and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 641 pages. Available in PDF, EPUB and Kindle. Book excerpt: G.HAINNAUX Departement Milieu et Activites Agricoles, Centre ORSTOM, 911 Avenue d' Agropolis, B.P. 5045, 34032 Montpellier Cedex , France. Solid state fermentation, popularly abbreviated as SSF, is currently investigated by many groups throughout the world. The study of this technique was largely neglected in the past in European and Western countries and there is now a high demand for SSF, meaning in food, environment, agricultural, phannaceutical and many other biotechnological applications. It gives me satisfaction to note that the importance of this technique was realised at my department way back in 1975 since then, our team has put concentrated efforts on developing this technique. xvii Foreword Advances in Solid State Fermentation Foreword M. PUYGRENIER Agropolis Valorisation, Avenue d' Agropolis, 34394 Montpellier Cedex 5, France. On the name of the Scientific Community, I would like to express the wish that this International Symposium on SSF should be successful. Solid State Fermentation is part of biotechnology research. It consists on seeding solid culture medium with bacteria or fungi (filamentous or higher) and on producing, in this medium (solid components and exudates) metabolites and high value products. In fact, this process is very old. In older industries such the food and agricultural, this technique has been extensively used. An example of this is the production of pork sausages and Roquefort cheese. Pharmaceutical industry could make extensive use of SSF in the production of secondary metabolites of many kinds and development in this direction is soon expected.
Download or read book Progress in Catalysis written by K.J. Smith and published by Elsevier. This book was released on 1992-05-25 with total page 423 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume contains papers and short communications presented at the 12th Canadian Symposium on Catalysis. The aim of the meeting was to present an update on new and established areas of catalysis research being performed in industry, government and university laboratories. Topics covered relate mainly to resource processing, such as heavy oil and natural gas upgrading, and to environmental issues. Approximately half the papers are included in sections on hydrogenation, carbon-carbon bond formation and environmental issues. The remaining papers cover general topics and homogeneous reactions. Examples include studies of hydroprocessing catalysts, carbon-carbon bond formation via methane oxidative coupling and dimerization of olefins, homogeneous catalysts in polymerization and dimerization reactions, performance of pillared clays, metal-oxygen cluster compounds, zeolites and catalysts prepared by metal oxide vapour synthesis. Studies that address the environmental issues include wet-air oxidation, catalytic elimination of organics, oxidation reactions and catalyst regeneration. The book provides practitioners of catalysis with an update on a wide number of topics and will be particularly useful to those interested in an overview of current catalysis research activities. Specialists in the areas of hydrogenation, carbon-carbon bond formation, homogeneous catalysis and environmental issues will also find a valuable set of new data and interesting discussions on these topics.
Download or read book Exchange Reactions written by and published by . This book was released on 1965 with total page 442 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Analytical Methods in the Nuclear Fuel Cycle written by and published by . This book was released on 1972 with total page 610 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Industrial Pharmaceutical Biotechnology written by Heinrich Klefenz and published by Wiley-VCH. This book was released on 2002-04-22 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume focuses on pharmaceutical biotechnology as a key area of life sciences. The complete range of concepts, processes and technologies of biotechnology is applied in modern industrial pharmaceutical research, development and production. The results of genome sequencing and studies of biological-genetic function are combined with chemical, micro-electronic and microsystem technology to produce medical devices and diagnostic biochips. A multitude of biologically active molecules is expanded by additional novel structures created with newly arranged gene clusters and bio-catalytic chemical processes. New organisational structures in the co-operation of institutes, companies and networks enable faster knowledge and product development and immediate application of the results of research and process development. This book is the ideal source of information for scientists and engineers in research and development, for decision-makers in biotech, pharma and chemical corporations, as well as for research institutes, but also for founders of biotech companies and people working for venture capital corporations.
Download or read book Medicinal Chemistry of Bioactive Natural Products written by Xiao-Tian Liang and published by John Wiley & Sons. This book was released on 2006-03-17 with total page 482 pages. Available in PDF, EPUB and Kindle. Book excerpt: Current discoveries and research into bioactive natural products Medicinal Chemistry of Bioactive Natural Products provides a much-needed survey of bioactive natural products and their applications in medicinal chemistry. This comprehensive reference features articles by some of the world's leading scientists in the field on discovery, structure elucidation, and elegant synthetic strategies--developed for natural products--with an emphasis on the structure activity relationship of bioactive natural products. The topics have been carefully chosen on the basis of relevance to current research and to importance as clinicially useful agents. Rather than attempting to be a comprehensive encyclopedia of bioactive natural products, Medicinal Chemistry of Bioactive Natural Products guides the reader to the key developments in the field. By providing not only practical detail but a historical perspective on the chemistry and biology of the compounds under consideration, the book serves as a handy resource for researchers in their own work developing pharmaceuticals, and as an inspiring introduction for young scientists to the dynamic field of bioactive natural products research. Enhanced by examples with updated research results, the discussion covers such topics as: * The chemistry and biology of epothilones * Vancomycin and other glycopeptide antibiotic derivates * Antitumor and other related activities of Taxol and its analogs * The antimalarial properties of the traditional Chinese medicine, Quinghaosu (artemisinin) * Huperzine A: A natural drug for the treatment of Alzheimer's disease * The medicinal chemistry of ginkgolides from Ginkgo biloba * Recent progress in Calophyllum coumarins as potent anti-HIV agents * Plant-derived anti-HIV agents and analogs * Chemical synthesis of annonaceous acetogenins and their structurally modified mimics
Download or read book ICREEC 2019 written by Ahmed Belasri and published by Springer Nature. This book was released on 2020-06-10 with total page 659 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Advanced Intelligent Systems for Sustainable Development AI2SD 2020 written by Janusz Kacprzyk and published by Springer Nature. This book was released on 2022-02-10 with total page 1298 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book publishes the best papers accepted and presented at the 3rd edition of the International Conference on Advanced Intelligent Systems for Sustainable Development Applied to Agriculture, Energy, Health, Environment, Industry, Education, Economy, and Security (AI2SD’2020). This conference is one of the biggest amalgamations of eminent researchers, students, and delegates from both academia and industry where the collaborators have an interactive access to emerging technology and approaches globally. In this book, readers find the latest ideas addressing technological issues relevant to all areas of the social and human sciences for sustainable development. Due to the nature of the conference with its focus on innovative ideas and developments, the book provides the ideal scientific and brings together very high-quality chapters written by eminent researchers from different disciplines, to discover the most recent developments in scientific research.
Download or read book Microbes The Foundation Stone of the Biosphere written by Christon J. Hurst and published by Springer Nature. This book was released on 2021-05-01 with total page 684 pages. Available in PDF, EPUB and Kindle. Book excerpt: This collection of essays discusses fascinating aspects of the concept that microbes are at the root of all ecosystems. The content is divided into seven parts, the first of those emphasizes that microbes not only were the starting point, but sustain the rest of the biosphere and shows how life evolves through a perpetual struggle for habitats and niches. Part II explains the ways in which microbial life persists in some of the most extreme environments, while Part III presents our understanding of the core aspects of microbial metabolism. Part IV examines the duality of the microbial world, acknowledging that life exists as a balance between certain processes that we perceive as being environmentally supportive and others that seem environmentally destructive. In turn, Part V discusses basic aspects of microbial symbioses, including interactions with other microorganisms, plants and animals. The concept of microbial symbiosis as a driving force in evolution is covered in Part VI. In closing, Part VII explores the adventure of microbiological research, including some reminiscences from and perspectives on the lives and careers of microbe hunters. Given its mixture of science and philosophy, the book will appeal to scientists and advanced students of microbiology, evolution and ecology alike.
Download or read book Adhesion Between Polymers and Concrete Adh sion Entre Polym res Et B ton written by H. R. Sasse and published by Springer. This book was released on 1986 with total page 792 pages. Available in PDF, EPUB and Kindle. Book excerpt: Preface Adhesion is a phenomenon architects and civil engineers are not very familiar with. In other disciplines knowledge about surface properties and the background of bonding energies is also far from satisfactory; nevertheless there are many important· applications in concrete engineering, where adhesion is necessary for success and durability. These include: - coating and painting - repair of concrete surfaces - bonding of fresh to old concrete - crack injection - glueing of precast elements - glueing of steel to concrete, etc. In 1981 RILEM established the technical committee 52-RAC 'Resin Adherence to Concrete'. The main aims of the committee's work were - to collect research results and practical experiences - to initiate and coordinate research programs - to develop, on a scientific base, test methods for field and for laboratory purposes. One of the results of the committee's work is a state-of-the-art report, which will be presented orally as a General Report at the International Symposium ISAP '86, and will be printed either in the RILEM journal Materials and Structures or separately. Several test recommendations have been elaborated and will be prepared as drafts for the participants ofISAP '86. These are: - direct tensile test - pull-off test - direct shear test - slant shear test - four-point bending test - dynamic loading test - thermal compatibility test (two versions) - injectibility test.
Download or read book Greenhouse Gas Emissions Fluxes and Processes written by A. Tremblay and published by Springer Science & Business Media. This book was released on 2011-04-30 with total page 743 pages. Available in PDF, EPUB and Kindle. Book excerpt: In a time when an unquestionable link between anthropogenic emissions of greenhouse gases and climatic changes has finally been acknowledged and * widely documented through IPCC reports, the need for precise estimates of greenhouse gas (GHG) production rates and emissions from natural as well as managed ecosystems has risen to a critical level. Future agreements between nations concerning the reduction of their GHG emissions will - pend upon precise estimates of the present level of these emissions in both natural and managed terrestrial and aquatic environments. From this viewpoint, the present volume should prove to a benchmark contribution because it provides very carefully assessed values for GHG emissions or exchanges between critical climatic zones in aquatic en- ronments and the atmosphere. It also provides unique information on the biases of different measurement methods that may account for some of the contradictory results that have been published recently in the literature on this subject. Not only has a large array of current measurement methods been tested concurrently here, but a few new approaches have also been developed, notably laser measurements of atmospheric CO concentration 2 gradients. Another highly useful feature of this book is the addition of - nitoring and process studies as well as modeling.
Download or read book Review of Fuel Failures in Water Cooled Reactors 2006 2015 IAEA Nuclear Energy Series No Nf T 2 5 written by International Atomic Energy Agency and published by . This book was released on 2019-12-19 with total page 65 pages. Available in PDF, EPUB and Kindle. Book excerpt: This updated version of Nuclear Energy Series NF-T-2.1 provides information on all aspects of fuel failures in current nuclear power plant operations.
Download or read book Activation and Functionalization of C H Bonds written by Karen I. Goldberg and published by ACS Symposium. This book was released on 2004 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Activation and Functionalization of C-H Bonds explores recent developments in the reaction chemistry of solution-phase transition-metal based systems with simple hydrocarbons and with more complex organic molecules. More than 20 internationally leading research groups contributed to this volume, and their chapters cover such topics as fundamental theoretical and mechanistic studies of C-H bond activation by metal complexes, catalytic systems for alkane functionalization, and new applications in synthetic organic chemistry. An introductory chapter offers an overview of stoichiometric and catalytic reactions of C-H bonds with transition metal complexes. The C-H bond is the most widespread linkage in organic chemistry, present in virtually every organic molecule. Unfortunately, C-H bonds are famously resistant to selective chemical transformations. The development of methods for their selective transformations has enormous potential value in fields ranging from the chemistry of fuels (for example, the conversion of methane to methanol) to the synthesis of the most complex organic molecules.
Download or read book Additive Manufacturing written by Andreas Gebhardt and published by Hanser Gardner Publications. This book was released on 2016 with total page 591 pages. Available in PDF, EPUB and Kindle. Book excerpt: The use of additive manufacturing for the direct production of finished products is becoming increasingly important. The method not only reduces the demands on industrial infrastructure, but also opens up new perspectives in terms of decentralized production and customer inclusive individualized production (customization, cyberproduction). Oriented towards the practitioner, in this book the basics of additive manufacturing are presented and the properties and special aspects of industrially available machines are discussed. From the generation of data to the forming method, the complete process chain is shown in a practical light. In particular, the following additive manufacturing technologies are discussed: - Polymerization (e.g., stereolithography) - Sintering and melting (e.g., laser sintering) - Layer laminate method (e.g., laminated object manufacturing, LOM) - Extrusion (e.g., fused deposition modeling, FDM) - 3D printing Applications for the production of models and prototypes (rapid prototyping), tools, tool inserts, and forms (rapid tooling) as well as end products (rapid manufacturing) are covered in detailed chapters with examples. Questions of efficiency are discussed from a strategic point of view, and also from an operational perspective.
Download or read book International Catalogue of Scientific Literature written by and published by . This book was released on 1914 with total page 828 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Newer Trace Elements in Nutrition written by Walter Mertz and published by . This book was released on 1971 with total page 466 pages. Available in PDF, EPUB and Kindle. Book excerpt:
