Химия
Различные книги в жанре Химия
Phytopharmaceuticals
Medicinal plants contain a variety of bioactive compounds, (also referred to as phytochemicals). in the leaves, stems, flowers and fruits. This book covers these bioactive compounds, their available sources, how the bioactive molecules are isolated from the plants, the biochemistry, structural composition and potential biological activities. Also discussed are the pharmacological aspects of medicinal plants, phytochemistry and biological activities of different natural products, ethnobotany and medicinal properties, as well as a novel dietary approach for various disease management and therapeutic potential. The importance of phytopharmaceutical of plants and potential applications in the food and pharma industries is highlighted.
Root Cause Failure Analysis
Root Cause Failure Analysis Provides the knowledge and failure analysis skills necessary for preventing and investigating process equipment failures Process equipment and piping systems are essential for plant availability and performance. Regularly exposed to hazardous service conditions and damage mechanisms, these critical plant assets can result in major failures if not effectively monitored and assessed—potentially causing serious injuries and significant business losses. When used proactively, Root Cause Failure Analysis (RCFA) helps reliability engineers inspect the process equipment and piping system before any abnormal conditions occur. RCFA is equally important after a failure happens: it determines the impact of a failure, helps control the resultant damage, and identifies the steps for preventing future problems. Root Cause Failure Analysis: A Guide to Improve Plant Reliability offers readers clear understanding of degradation mechanisms of process equipment and the concepts needed to perform industrial RCFA investigations. This comprehensive resource describes the methodology of RCFA and provides multiple techniques and industry practices for identifying, predicting, and evaluating equipment failures. Divided into two parts, the text first introduces Root Cause Analysis, explains the failure analysis process, and discusses the management of both human and latent error. The second part focuses on failure analysis of various components such as bolted joints, mechanical seals, steam traps, gearboxes, bearings, couplings, pumps, and compressors. This authoritative volume:Illustrates how failures are associated with part integrity, a complete system, or the execution of an engineering processDescribes how proper design, operation, and maintenance of the equipment help to enhance their reliabilityCovers analysis techniques and industry practices including 5-Why RCFA, fault tree analysis, Pareto charts, and Ishikawa diagramsFeatures a detailed case study of process plant machinery and a chapter on proactive measures for avoiding failuresBridging the gap between engineering education and practical application, Root Cause Failure Analysis: A Guide to Improve Plant Reliability is an important reference and guide for industrial professionals, including process plant engineers, planning managers, operation and maintenance engineers, process designers, chemical engineers, and instrument engineers. It is also a valuable text for researchers, instructors, and students in relevant areas of engineering and science.
Quantenmechanische Grundlagen der Molekülspektroskopie
Schlägt die Brücke zwischen Quantentheorie und Spektroskopie!<br> <br> Spektroskopie ist das Arbeitspferd zur Struktur- und Eigenschaftsaufklärung von Molekülen und Werkstoffen. Um die verschiedenen spektroskopischen Methoden verstehen, kompetent anwenden und die Ergebnisse interpretieren zu können, ist grundlegendes Wissen der Quantenmechanik erforderlich: Konzepte wie stationäre Zustände, erlaubte und verbotene Übergänge, Elektronenspin und Elektron-Elektron-, Elektron-Photon- und Elektron-Phonon-Wechselwirkung sind die Grundlagen jeglicher spektroskopischen Methode.<br> <br> Quantenmechanische Grundlagen der Molekülspektroskopie führt ein in die quantenmechanischen Grundlagen der Molekülspektroskopie, geschrieben vom Standpunkt eines erfahrenen Anwenders spektroskopischer Methoden. Das Lehrbuch vermittelt das notwendige Hintergrundwissen, um Spektroskopie zu verstehen: Energie-Eigenzustände, Übergänge zwischen diesen Zuständen, Auswahlregeln und Symmetrie. Zahlreiche Spektroskopiearten werden diskutiert, etwa Fluoreszenz-, Oberflächen-, Raman-, IR- und Spin-Spektroskopie.<br> <br> * Perfekte Balance: ausreichend Physik und Mathematik, um Spektroskopie zu verstehen, ohne die Leserinnen und Leser mit unnötigem Formalismus zu überfrachten<br> <br> * Relevantes Thema: spektroskopische Methoden werden in allen Bereichen der Chemie, Biophysik, Biologie und Materialwissenschaften angewandt<br> <br> * Auf die Bedürfnisse Studierender zugeschnitten: der Autor ist ein erfahrener Hochschullehrer, der auch schwierige Aspekte verständlich vermittelt<br> <br> * Hervorragende Didaktik: detaillierte Erklärungen und durchgerechnete Beispiele unterstützen das Verständnis; zahlreiche Aufgaben mit Lösungen im Anhang erleichtern das Selbststudium<br> <br> Geschrieben für Studierende der Chemie, Biochemie, Materialwissenschaften und Physik, bietet Quantenmechanische Grundlagen der Molekülspektroskopie umfassendes Lernmaterial zum Verständnis der Molekülspektroskopie. <br>
Geochemistry
This book aims to explore basic principles, concepts and applications of geochemistry. Topics include chemical weathering, impacts on living beings and water, geochemical cycles, oxidation and redox reactions in geochemistry, isotopes, analytical techniques, medicinal, inorganic, marine, atmospheric, and environmental applications, as well as case studies. This book helps in understanding the chemical composition of the earth and its applications. It also includes beneficial effects, bottlenecks, solutions, and future directions in geochemistry.
Solar-to-Chemical Conversion
This comprehensive book systematically covers the fundamentals in solar energy conversion to chemicals, either fuels or chemical products. It includes natural photosynthesis with emphasis on artificial processes for solar energy conversion and utilization. The chemical processes of solar energy conversion via homogeneous and/or heterogeneous photocatalysis has been described with the mechanistic insights. It also consists of reaction systems toward a variety of applications, such as water splitting for hydrogen or oxygen evolution, photocatalytic CO2 reduction to fuels, and light driven N2 fixation, etc. This unique book offers the readers a broad view of solar energy utilization based on chemical processes and their perspectives for future sustainability.