Download or read book tude par des m thodes d imp dance de la corrosion du zinc en milieu sulfate de sodium a r et agit written by Christine Tournillon and published by . This book was released on 1985 with total page 133 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Etude par la m thode d imp dance lectrochimique de la corrosion du magn sium dans une solution de sulfate de sodium a r e et agit e written by Christian Riera and published by . This book was released on 1986 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt: ETUDE DU COMPORTEMENT ELECTROCHIMIQUE DU MAGNESIUM PUR EN MILIEU SULFATE DE SODIUM PAR COUPLAGE DES METHODES ELECTROCHIMIQUES STATIONNAIRES ET TRANSITOIRES. L'ENSEMBLE DES RESULTATS OBTENUS EST COHERENT AVEC L'EXISTENCE D'UN FILM RECOUVRANT LA SURFACE ET MONTRE QUE CE FILM PRESENTE DES PROPRIETES PROTECTRICES DEPENDANTES A LA FOIS DES CONDITIONS HYDRODYNAMIQUES ET DE LA POLARISATION APPLIQUEE. A PARTIR DE CES RESULTATS, UNE APPROCHE VISANT A DETERMINER LA VITESSE DE CORROSION A ETE ENTREPRISE
Download or read book ETUDE DES MECANISMES D INHIBITION DE LA CORROSION DU ZINC EN MILIEU ACIDE PAR DES MOLECULES ORGANIQUES CAS DES PHOSPHINES ET DES AMINES written by ABDELLAH.. NIA and published by . This book was released on 1993 with total page 133 pages. Available in PDF, EPUB and Kindle. Book excerpt: LE TRAVAIL PORTE SUR L'INHIBITION DE LA CORROSION ACIDE DU ZINC PAR DES MOLECULES ORGANIQUES DE TYPE PHOSPHINE ET AMINE. L'ETUDE DU SYSTEME ZINC/ACIDE SULFURIQUE EN L'ABSENCE D'INHIBITEUR PAR DES METHODES ELECTROCHIMIQUES, A MONTRE QUE DANS LE DOMAINE DE PH ETUDIE 0,83
Download or read book Etude de la corrosion localis e de l alliage d aluminium 7475 T621 par spectroscopie d imp dance lectrochimique globale et locale en milieu sulfate de sodium written by Jean Vicente Ferrari and published by . This book was released on 2011 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt: La microstructure des alliages d'aluminium est caractérisée par la présence d'un grand nombre de particules intermétalliques (IM) dont l'activité électrochimique est différente de celle de la matrice environnante conduisant à l'apparition de phénomènes de corrosion localisée. Le but de ce travail est l'étude la corrosion localisée de l'alliage Al 7475-T761, utilisé pour ses propriétés mécaniques dans les avions, en milieu sulfate au moyen de la spectroscopie d'impédance électrochimique locale (SIEL) associée à la caractérisation microstructurale par MEB/EDS. Les résultats obtenus ont confirmé que le pH local augmente à l'interface matrice/IM en raison de la réaction cathodique sur les particules qui est la cause la plus importante de corrosion localisée de l'alliage. Ce processus conduit à la dissolution locale de la couche passive et à une dépolarisation importante de la réaction d'oxydation de l'aluminium. D'autre part, une étude mettant en œuvre l'électrode à disque tournant (RDE) a révélé que les ions sulfate augmentent les performances anti corrosion de la couche passive et sont particulièrement agressifs à linterface IM/Cu. En ce qui concerne les études avec la technique SIEL, elles ont été effectuées en utilisant un couple modèle Al 7475/Cu afin de simuler la réactivité électrochimique de l'interface IM/alliage. Une autre originalité de ce travail concernant la technique SIEL, est l'utilisation d'une tri-électrode pour acquérir les diagrammes d'impédance locale. Ce système permet la mesure simultanée des composantes normale et radiale de la densité de courant locale et rend possible une meilleure compréhension des phénomènes locaux interfaciaux.
Download or read book Arsenic in Drinking Water written by National Research Council and published by National Academies Press. This book was released on 2001-11-26 with total page 241 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Paris Universal Exhibition 1855 Catalogue of the Works Exhibited in the British Section of the Exhibition in French and English Together With Exhi written by P. Great Britain Imperial Commission and published by Legare Street Press. This book was released on 2022-10-27 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work is in the "public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Download or read book Artisan Reports on the Paris Universal Exhibition of 1878 written by Royal Society of Arts (Great Britain) and published by . This book was released on 1879 with total page 690 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Total Diet Studies written by Gerald G. Moy and published by Springer. This book was released on 2016-08-23 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Unless a food is grossly contaminated, consumers are unable to detect through sight or smell the presence of low levels of toxic chemicals in their foods. Furthermore, the toxic effects of exposure to low levels of chemicals are often manifested slowly, sometimes for decades, as in the case of cancer or organ failure. As a result, safeguarding food from such hazards requires the constant monitoring of the food supply using sophisticated laboratory analysis. While the food industry bears the primary responsibility for assuring the safety of its products, the overall protection of people’s diets from chemical hazards must be considered one of the most important public health functions of any government. Unfortunately, many countries do not have sufficient capability and capacity to monitor the exposure of their populations to many potentially toxic chemicals that could be present in food and drinking water. Without such monitoring, public health authorities in many countries are not able to identify and respond to problems posed by toxic chemicals, which may harm their population and undermine consumer confidence in the safety of the food supply. From a trade perspective, those countries that cannot demonstrate that the food they produce is free of potentially hazardous chemicals will be greatly disadvantaged or even subject to sanctions in the international marketplace. The goal of a total diet study (TDS) is to provide basic information on the levels and trends of exposure to chemicals in foods as consumed by the population. In other words, foods are processed and prepared as typical for a country before they are analyzed in order to better represent actual dietary intakes. Total diet studies have been used to assess the safe use of agricultural chemicals (e.g., pesticides, antibiotics), food additives (e.g., preservatives, sweetening agents), environmental contaminants (e.g., lead, mercury, arsenic, cadmium, PCBs, dioxins), processing contaminants (e.g., acrylamide, polycyclic aromatic hydrocarbons, chloropropanols), and natural contaminants (e.g., aflatoxin, patulin, other mycotoxins) by determining whether dietary exposure to these chemicals are within acceptable limits. Total diet studies can also be applied to certain nutrients where the goal is to assure intakes are not only below safe upper limits, but also above levels deemed necessary to maintain good health. International and national organizations, such as the World Health Organization, the European Food Safety Agency and the US Food and Drug Administration recognize the TDS approach as one of the most cost-effective means of protecting consumers from chemicals in food, for providing essential information for managing food safety, including food standards, and for setting priorities for further investment and study. Total Diet Studies introduces the TDS concept to a wider audience and presents the various steps in the planning and implementation of a TDS. It illustrates how TDSs are being used to protect public health from chemicals in the food supply in many developed and developing countries. The book also examines some of the applications of TDSs to specific chemicals, including contaminants and nutrients.
Download or read book Livable Cities for the 21st Century written by and published by World Bank Publications. This book was released on 1996 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt: "As one of the World Bank's contributions to the Habitat II process in Istanbul, this publication first tells the story of nearly a quarter century of the Bank's program of urban assistance for developing countries. It then turns to the future to draw att
Download or read book Selected Water Resources Abstracts written by and published by . This book was released on 1976 with total page 888 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Haiti written by World Bank and published by World Bank Publications. This book was released on 2008 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book summarizes the key findings and policy recommendations of a comprehensive diagnosis of a Public Expenditure Management and Financial Accountability Review (PEMFAR). The PEMFAR is an exercise which integrates the analysis of a Public Expenditure Review, a Country Financial Accountability Assessment, and a Country Procurement Assessment Report. The analysis focuses on the linkages between public finance, growth, and poverty. Over the past years, Haiti has made good progress in reforming its public financial management system. However, significant challenges remain to improve efficiency, transparency, and accountability. Moreover, the growth-poverty response of the improved system has been limited. Haiti remains one the poorest countries in the world. Accelerating growth and reducing poverty will require bold policy actions with a strong emphasis on fiscal reforms. However, even with the best fiscal reforms, it is unlikely that Haiti will achieve in the near future the high growth rates required to significantly move the country out of the poverty trap. More foreign aid and predictable flows are needed to support economic growth and help overcome some of the vicious dynamic circles that lock Haiti in a low growth/high poverty equilibrium, and improve living standards. In this context, effective management of aid flows is crucial to ensure that their potential growth-enhancing, poverty-reducing, and human development-improving effects materialize.
Download or read book Soil Conservation and Management in the Humid Tropics written by D. J. Greenland and published by . This book was released on 1977 with total page 334 pages. Available in PDF, EPUB and Kindle. Book excerpt: Introduction; Basic aspects of soil and water conservation; Characterization of soils and climates in relation to the erosion hazard; Management for erosion control; Farming systems and erosion hazard in Africa; Farming systems and erosion hazard in the far east; Farming systems and erosion hazard in Latin America; Towards erosion control in the humid tropics; Appendix; Author index; Subject index.
Download or read book Cambridge Yearbook of European Legal Studies Vol 13 2010 2011 written by Catherine Barnard and published by Bloomsbury Publishing. This book was released on 2011-12-15 with total page 337 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Cambridge Yearbook of European Legal Studies provides a forum for the scrutiny of significant issues in EU Law, the law of the European Convention on Human Rights, and Comparative Law with a 'European' dimension, and particularly those issues which have come to the fore during the year preceding publication. The contributions appearing in the collection are commissioned by the Centre for European Legal Studies (CELS) Cambridge, a research centre in the Law Faculty of the University of Cambridge specialising in European legal issues. The papers presented are at the cutting edge of the fields which they address, and reflect the views of recognised experts drawn from the University world, legal practice, and the institutions of both the EU and its Member States. Inclusion of the comparative dimension brings a fresh perspective to the study of European law, and highlights the effects of globalisation of the law more generally, and the resulting cross fertilisation of norms and ideas that has occurred among previously sovereign and separate legal orders. The Cambridge Yearbook of European Legal Studies is an invaluable resource for those wishing to keep pace with legal developments in the fast moving world of European integration. INDIVIDUAL CHAPTERS Please click on the link below to purchase individual chapters from Volume 13 through Ingenta Connect: www.ingentaconnect.com SUBSCRIPTION TO SERIES To place an annual online subscription or a print standing order through Hart Publishing please click on the link below. Please note that any customers who have a standing order for the printed volumes will now be entitled to free online access. www.hartjournals.co.uk/cyels/subs Editorial Advisory Board: Albertina Albors-Llorens, John Bell, Alan Dashwood, Simon Deakin, David Feldman, Richard Fentiman, Angus Johnston, John Spencer Founding Editors: Alan Dashwood and Angela Ward Ius Commune Prize 2012 Alexandre Saydé wrote Chapter 15 in this volume entitled: 'One Law, Two Competitions: An Enquiry into the Contradictions of Free Movement Law' and we are delighted to announce that he has been awarded the Ius Commune Prize 2012.
Download or read book Atlas of the Great Caves of the World written by Paul Courbon and published by . This book was released on 1989 with total page 380 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Institutional Options for the Provision of Infrastructure written by Christine Kessides and published by World Bank Publications. This book was released on 1993-01-01 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper explains why tough public sector reform and a sound macroeconomy are essential to sustained growth. It provides a strategy to help countries evaluate how well their governments' policies work. Decisionmakers will learn ways to build an evaluations program that can make governments more accountable and improve their performance. Some options could include making central banks independent, eliminating earmarked funds, and balancing the national budget. The author suggests which government offices should oversee and develop evaluation policies to get the best results, and explains why evaluation results must be linked with all budget decisions. He describes the political and economic environment that allows the evaluation process to develop freely. Also discussed is the role that the World Bank and other insti- tutions should play in supporting evaluation programs. The study examines how sound evaluation can lead to more consistent international policies and better international governance.
Download or read book Water Encyclopedia Surface and Agricultural Water written by Jay H. Lehr and published by Wiley-Interscience. This book was released on 2005-06-01 with total page 800 pages. Available in PDF, EPUB and Kindle. Book excerpt: Maximizing the use of our visible surface supplies in light of their greatest need in agriculture presents an enormous challenge throughout the world. New techniques in agricultural applications to preserve resources and increase yields are featured. Dams, lakes, and hydraulic features of surface water systems are amply covered, along with the importance of storm water management to growing communities.
Download or read book Socialism Perestroika and the Dilemmas of Soviet Economic Reform written by John E Tedstrom and published by Routledge. This book was released on 2021-12-13 with total page 239 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book highlights that Soviet economic planners and politicians must come to recognize the need to make fundamental changes, not simply incremental refinements, in the failing Soviet system. It examines the dynamics of the process of perestroika and the complexity of individual economic issues.
