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Interet De La Spectroscopie Proche Infra Rouge Pour Le Suivi Dune Operation De Melange De Poudres
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Book Synopsis Intérêt de la spectroscopie proche infra rouge pour le suivi d'une opération de mélange de poudres by : Vincent Perrod
Download or read book Intérêt de la spectroscopie proche infra rouge pour le suivi d'une opération de mélange de poudres written by Vincent Perrod and published by . This book was released on 2006 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt: Le but d'une opération de mélange de poudres est d'atteindre l'homogénéité, c'est-à-dire une situation où tous les constituants sont distribués de façon uniforme dans le mélange. Les moyens utilisés actuellement pour évaluer l'efficacité de cette étape, ne sont pas satisfaisants, à cause du biais qu'ils apportent. Par conséquent, une méthode alternative se développe dans l'industrie pharmaceutique, sous l'impulsion de la Food and drug administration : la démarche "Process analytical technology", qui permet de suivre en ligne et en temps réel le mélange. Plusieurs technologies peuvent être utilisées pour effectuer ce suivi, dont la spectroscopie proche infra rouge (PIR). Nous avons testé deux spectromètres, Acousto-Optic Tunable Filter et à barrette de diodes, permettant d'acquérir des spectres PIR caractéristiques de l'état du mélange. Nous avons comparé ces deux matériels et évalué le point d'arrêt sur un mélange avec une faible concentration en principe actif. Au contraire, l'étude d'un mélange avec deux constituants de structure chimique proche n'a pas permis de déterminer l'atteinte de l'homogénéité. Enfin, le suivi d'un mélange non critique a montré que la combinaison de différents traitements appliqués sur les spectres obtenus, semblait la solution la plus intéressante pour connaître le point d'arrêt. Une étude approfondie permettrait d'évaluer la significativité des résultats obtenus.
Book Synopsis Mise en place de la spectroscopie proche infrarouge selon les approches Quality By Design et Lean Six Sigma pour le pilotage en ligne de l'humidité d'une poudre by : Camille Bertaux
Download or read book Mise en place de la spectroscopie proche infrarouge selon les approches Quality By Design et Lean Six Sigma pour le pilotage en ligne de l'humidité d'une poudre written by Camille Bertaux and published by . This book was released on 2014 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cette thèse présente l'initiation de la mise en place de la spectroscopie proche infrarouge sur un process de séchage pour l'analyse en ligne de l'humidité d'une poudre. De nos jours, les procédés de fabrication comportant des étapes discontinues connaissent des limites en termes de productivité et de qualité. Il est donc nécessaire de faire appel à des procédés innovants. Afin de démontrer la conformité et l'homogénéité permanente de la poudre tout au long du procédé de fabrication par ce nouveau système, il est indispensable de réaliser des étapes de calibrations et d'essais afin de s'assurer d'un résultat final de qualité. L'objectif est donc d'améliorer la capabilité de l'humidité résiduelle des produits d'un atelier de granulation humide. Pour cela, nous nous sommes appuyée sur la méthodologie Lean Six Sigma pour réaliser ce projet. Cette mise en place rentre également dans une démarche de Quality by Design, puisque le but est d'explorer les caractéristiques de la poudre, de mieux connaître le procédé de séchage en l'explorant aux limites et en identifiant ses paramètres critiques.
Book Synopsis Utilisation de la spectroscopie proche infrarouge comme un outil PAT pour la quantification de substances en solution by : Laura Fatela
Download or read book Utilisation de la spectroscopie proche infrarouge comme un outil PAT pour la quantification de substances en solution written by Laura Fatela and published by . This book was released on 2012 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: La démarche PAT a été initiée dans les années 2000 par la FDA auprès des industries et des laboratoires pharmaceutiques. Son objectif est de mettre en place des outils efficaces et performants pour contrôler et optimiser les procédés de production. La spectroscopie proche infrarouge est un outil analytique particulièrement approprié pour la mise en place du PAT. Elle permet de réaliser des analyses rapides, non destructives, sans préparation et sans contact. Cette étude menée au sein de l'entreprise Merial a pour objectif de montrer que la SPIR peut être une méthode alternative à la CLHP pour quantifier des substances en solution. Ce mémoire expose les principes et la marche à suivre pour établir et analyser un modèle de quantification. Il explique la préparation des solutions puis les prétraitements à réaliser et se termine enfin par l'analyse des modèles obtenus et le choix du meilleur modèle. Ce travail a permis de mettre au point un modèle de quantification pour trois des quatre substances présentes dans la solution étudiée. Pour la quatrième substance de par sa faible concentration dans le produit fini, aucun modèle de quantification n'a pu être mis au point malgré de nombreux essais réalisés. La spectroscopie proche infrarouge permet de réaliser des analyses quantitatives ou qualitatives comme ce travail l'a démontré. Elle est capable de donner des informations sur les propriétés physiques et chimiques des produits. Son développement sera optimal lorsque les industries pharmaceutiques et les autorités de tutelle auront acquises suffisamment d'expérience dans ce domaine.
Book Synopsis Développement d'une méthode d'analyse quantitative par proche infrarouge d'un principe actif dans un mélange de poudres by : Cédric Dauve
Download or read book Développement d'une méthode d'analyse quantitative par proche infrarouge d'un principe actif dans un mélange de poudres written by Cédric Dauve and published by . This book was released on 2009 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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.
Book Synopsis Handbook of Environmental Engineering by : Rao Surampalli
Download or read book Handbook of Environmental Engineering written by Rao Surampalli and published by McGraw Hill Professional. This book was released on 2018-08-24 with total page 556 pages. Available in PDF, EPUB and Kindle. Book excerpt: A complete guide to environmental remediation technologies, techniques, and regulations This practical resource offers comprehensive coverage of the latest environmental codes alongside step-by-step remediation procedures. The book features information on all segments of the market, including water, air quality, and hazardous wastes, and enables you to ensure compliance with federal regulations. Handbook of Environmental Engineering fully explains engineering methods and technologies and directly connects them to applicable standards. You will get details on environmental tools such as sensors and monitoring, toxicity controls and treatments, and waste disposal. Measurement data, environmental impact assessments, and real-world examples demonstrate how to apply each technique in the field.
Download or read book Soil Analysis written by J. Gautheyrou and published by CRC Press. This book was released on 2001-01-01 with total page 514 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of this book is to provide a better understanding of tools for soil analysis in order to use them more efficiently. It covers sampling problems as well as difficulties relating to actual analysis and quality control.
Book Synopsis Organic Indoor Air Pollutants by : Tunga Salthammer
Download or read book Organic Indoor Air Pollutants written by Tunga Salthammer and published by John Wiley & Sons. This book was released on 2009-11-18 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt: With the quality of indoor air ranking highly in our lives, this second, completely, revised edition now includes 12 completely new chapters addressing both chemical and analytical aspects of organic pollutants. Sources of indoor air pollutants, measurement and detection as well as evaluation are covered filling the gap in the literature caused by this topical subject. This book is divided into four clearly defined parts: measuring organic indoor pollutants, investigation concepts and quality guidelines, field studies, and emission studies. The authors cover physico-chemical fundamentals of organic pollutants, relevant definitions and terminology, emission sources, sampling techniques and instrumentation, exposure assessment as well as methods for control. Test methods and studies for various indoor environments are described, such as automobile interiors, museum environments, or rooms with air ventilation. Emission sources covered include household and consumer products as well as electronic devices and office equipment. The book is aimed at chemists, physicists, biologists, and medical doctors at universities and research facilities, in industry and environmental laboratories as well as regulative bodies.
Book Synopsis Flexoelectricity in Liquid Crystals by : Agnes Buka
Download or read book Flexoelectricity in Liquid Crystals written by Agnes Buka and published by World Scientific. This book was released on 2013 with total page 299 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book intends to give a state-of-the-art overview of flexoelectricity, a linear physical coupling between mechanical (orientational) deformations and electric polarization, which is specific to systems with orientational order, such as liquid crystals. Chapters written by experts in the field shed light on theoretical as well as experimental aspects of research carried out since the discovery of flexoelectricity. Besides a common macroscopic (continuum) description the microscopic theory of flexoelectricity is also addressed. Electro-optic effects due to or modified by flexoelectricity as well as various (direct and indirect) measurement methods are discussed. Special emphasis is given to the role of flexoelectricity in pattern-forming instabilities. While the main focus of the book lies in flexoelectricity in nematic liquid crystals, peculiarities of other mesophases (bent-core systems, cholesterics, and smectics) are also reviewed. Flexoelectricity has relevance to biological (living) systems and can also offer possibilities for technical applications. The basics of these two interdisciplinary fields are also summarized.
Book Synopsis Organic Solid-State Lasers by : Sébastien Forget
Download or read book Organic Solid-State Lasers written by Sébastien Forget and published by Springer. This book was released on 2013-07-03 with total page 179 pages. Available in PDF, EPUB and Kindle. Book excerpt: Organic lasers are broadly tunable coherent sources, potentially compact, convenient and manufactured at low-costs. Appeared in the mid 60’s as solid-state alternatives for liquid dye lasers, they recently gained a new dimension after the demonstration of organic semiconductor lasers in the 90's. More recently, new perspectives appeared at the nanoscale, with organic polariton and surface plasmon lasers. After a brief reminder to laser physics, a first chapter exposes what makes organic solid-state organic lasers specific. The laser architectures used in organic lasers are then reviewed, with a state-of-the-art review of the performances of devices with regard to output power, threshold, lifetime, beam quality etc. A survey of the recent trends in the field is given, highlighting the latest developments with a special focus on the challenges remaining for achieving direct electrical pumping of organic semiconductor lasers. A last chapter covers the applications of organic solid-state lasers.
Book Synopsis Applied Mineralogy in the Mining Industry by : W. Petruk
Download or read book Applied Mineralogy in the Mining Industry written by W. Petruk and published by Elsevier. This book was released on 2000-11-29 with total page 287 pages. Available in PDF, EPUB and Kindle. Book excerpt: Techniques of performing applied mineralogy investigations, and applications and capabilities of recently developed instruments for measuring mineral properties are explored in this book intended for practicing applied mineralogists, students in mineralogy and metallurgy, and mineral processing engineers. The benefits of applied mineralogy are presented by using in-depth applied mineralogy studies on base metal ores, gold ores, porphyry copper ores, iron ores and industrial minerals as examples. The chapter on base metal ores includes a discussion on the effects of liberation, particle sizes and surfaces coatings of Pb, Cu, Fe, Ca and So4- on the recoveries of sphalerite, galena and chalcopyrite. The chapter on gold discusses various methods of determining the quantities of gold in different minerals, including 'invisible' gold in pyrite and arsenopyrite, so that a balance of the distribution of gold among the minerals can be calculated. This book also discusses the roles of pyrite, oxygen, moisture and bacterial (thiobacillus ferrooxidans) on reactions that produce acidic drainage from tailings piles, and summarizes currently used and proposed methods of remediation of acidic drainage.
Download or read book Sea Plants written by and published by Elsevier. This book was released on 2014-05-21 with total page 593 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in Botanical Research publishes in-depth and up-to-date reviews on a wide range of topics in plant sciences. The series features several reviews by recognized experts on all aspects of plant genetics, biochemistry, cell biology, molecular biology, physiology and ecology. This thematic volume, number 71, features reviews on sea plants. Its chapters cover topics such as the role of algae in sustainability; the status of kelp exploitation and marine agronomy; potential applications for enzymatic recovery of metabolites from seaweeds; and many more. Publishes in-depth and up-to-date reviews on a wide range of topics in plant sciences Features a wide range of reviews by recognized experts on all aspects of plant genetics, biochemistry, cell biology, molecular biology, physiology, and ecology Volume features reviews on sea plants
Book Synopsis Karen's New Bike (Baby-Sitters Little Sister #62) by : Ann M. Martin
Download or read book Karen's New Bike (Baby-Sitters Little Sister #62) written by Ann M. Martin and published by Scholastic Inc.. This book was released on 2016-05-31 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt: From the bestselling author of the generation-defining series The Baby-sitters Club comes a series for a new generation! Yikes, My Bike! Karen is learning all about bike safety in school. She is even going to enter a bike-a-thon. But Karen’s bike is too small for her. So with Daddy’s help, Karen buys a new bike. Then Karen’s new bike is stolen. Can Karen catch the thief and get her bike back?
Book Synopsis Organochlorine Insecticides by : F. Moriarty
Download or read book Organochlorine Insecticides written by F. Moriarty and published by . This book was released on 1975 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt: Monitoring persistent organic pollhitants; exposure and residues; variationin the intake and elimination of pollutants; the role of the thy roid in the production of sublethal effec by organochlorine insecticides and polychlorine insecticides on amimal populations; persistent percides an economic and legal analysis.
Book Synopsis Encapsulations by : Alexandru Grumezescu
Download or read book Encapsulations written by Alexandru Grumezescu and published by Academic Press. This book was released on 2016-05-27 with total page 926 pages. Available in PDF, EPUB and Kindle. Book excerpt: Encapsulations, a volume in the Nanotechnology in the Agri-Food Industry series,presents key elements in establishing food quality through the improvement of food flavor and aroma. The major benefits of nanoencapsulation for food ingredients include improvement in bioavailability of flavor and aroma ingredients, improvement in solubility of poor water-soluble ingredients, higher ingredient retention during production process, higher activity levels of encapsulated ingredients, improved shelf life, and controlled release of flavor and aroma. This volume discusses main nanoencapsulation processes such as spray drying, melt injection, extrusion, coacervation, and emulsification. The materials used in nanoencapsulation include lipids, proteins, carbohydrates, cellulose, gums, and food grade polymers. Applications and benefits of nanoencapsulation such as controlled release, protections, and taste masking will be explained in detail. Includes the most up-to-date information on nanoencapsulation and nanocontainer-based delivery of antimicrobials Presents nanomaterials for innovation based on scientific advancements in the field Provides control release strategies to enhance bioactivity, including methods and techniques for research and innovation Provides useful tools to improve the delivery of bioactive molecules and living cells into foods
Book Synopsis Laser: 50 Years Of Discoveries by : Fabien Bretenaker
Download or read book Laser: 50 Years Of Discoveries written by Fabien Bretenaker and published by World Scientific. This book was released on 2014-10-27 with total page 185 pages. Available in PDF, EPUB and Kindle. Book excerpt: This unique book provides an overview of the principle and applications of lasers enriched with numerous illustrations.Being over fifty years old, lasers continue to amaze us. Their performance characteristics are constantly reaching new limits, and the scope of their applications continues to expand. Yet, it took years of effort by teams of physicists to transform the fundamental notions of Einstein into the first experimental beam of laser light. And history is still going on as fundamental research is now triggered by its remarkable properties.This book addresses every aspects of laser light, from its fundamental principles to its industrial applications, at a level particularly suited for high school teachers, students, and anybody curious about science and technology.
Book Synopsis In-Situ Gelling Polymers by : Xian Jun Loh
Download or read book In-Situ Gelling Polymers written by Xian Jun Loh and published by Springer. This book was released on 2014-10-01 with total page 229 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents the research involving in situ gelling polymers and can be used as a guidebook for academics, industrialists and postgraduates interested in this area. This work summaries the academic contributions from the top authorities in the field and explore the fundamental principles of in situ gelling polymeric networks, along with examples of their major applications. This book aims to provide an up-to-date resource of in situ gelling polymer research.
