eBooks de Química, página 14 de 20

O milho é produzido em todos os continentes do mundo e utilizado na produção de alimentos em diversas formas para o consumo direto pelo homem e de forma indireta pela ingesta de produtos de origem an

Este curso de Química de primer año del Instituto Case presenta a sus estudiantes las teorías actuales y conceptos unificantes de su contenido. El profesor en un curso de este tipo, por otra parte, se enfrenta con el problema de dividir su tiempo utilizable entre dos clases de materias. De una parte, puede limitar sus lecciones en mayor extension a los principios generales. Por otro lado, puede incluir en sus lecciones los detalles de los procedimientos de la resolucion de problemas afrontando la perdida de interes que a menudo acompaa a esta materia. En este sentido, la utilizacion de este material de instruccion como suplemento de las lecciones y conferencias del curso, habra de ser de gran ayuda para que el estudiante tenga una vision de conjunto de la Quimica.

Henleys Twentieth Century Formulas, Recipes and Processes is a comprehensive compendium of practical knowledge, reflecting the industrial and scientific advancements of the early twentieth century. This meticulously curated work encompasses a wide array of formulas and recipes spanning multiple fields, including chemistry, pharmacology, and manufacturing processes. The literary style is straightforward and instructional, steering away from the ornate prose of literary predecessors to prioritize utility and clarity, making it an indispensable reference for professionals and enthusiasts alike. The book serves as a testament to the burgeoning age of scientific inquiry, providing insights into the methodologies of the time and the emerging trends in technical craftsmanship. The authorship, attributed to various contributors, embodies a collective expertise stemming from a rich mosaic of industrialists, chemists, and artisans who pushed the boundaries of knowledge during a period marked by rapid technological evolution. Their diverse backgrounds and experiences illuminate the intersections of multiple disciplines, reflecting a time when the boundaries between science and daily life were increasingly blurred. This collaborative effort underscores the communal pursuit of progress and the sharing of knowledge crucial to the eras innovation. Henleys Twentieth Century Formulas, Recipes and Processes is highly recommended for scholars, practitioners, and curious minds alike. Its vast and varied content not only enriches the understanding of early twentieth-century industrial practices but also serves as a valuable tool for contemporary applications. This book is a must-have for anyone interested in the fusion of science and craftsmanship in shaping the modern world.

In "The Chemical History of a Candle," Michael Faraday masterfully interlaces scientific inquiry with eloquent prose, offering an accessible yet profound exploration of the combustion process and the nature of matter as demonstrated through the simple candle. This work, delivered as a series of illuminating lectures, employs straightforward analogies and everyday phenomena to engage a broader audience in the wonders of chemistry. Faradays vivid descriptions and methodical observations place the candle at the center of a scientific narrative, unraveling the complexities of chemistry in a manner that emphasizes empirical understanding and the beauty of scientific discovery, set against the backdrop of the 19th centurys burgeoning interest in the natural sciences. Michael Faraday, a seminal figure in the field of electromagnetism and electrochemistry, was largely self-taught, reflecting an insatiable curiosity and a dedication to the acquisition of knowledge. His background as a humble bookbinder allowed him to cultivate a fascination with science through literature, sparking a desire to bridge the gap between complex scientific ideas and the general public. "The Chemical History of a Candle" emerged from his desire to inspire wonder and understanding in the scientific miracles of everyday life. This book is highly recommended for anyone seeking to deepen their appreciation for the interplay of physics and chemistry, as well as for those interested in the historical context of scientific thought. Faradays unique ability to engage and educate through accessible language makes this work a timeless resource, inviting readers to ponder the intricate wonders illuminated by the flicker of a candle.

A secagem é uma operação essencial em indústrias química, agrícola, biotecnologia, polímeros, cerâmicas, farmacêutica, processamento mineral e madeira. Esse livro apresenta uma metodologia para análi

Ulva lactuca é uma macroalga marinha bioindicadora de poluição, que se prolifera em áreas com concentrações elevadas de rejeito orgânico devido à sua capacidade de fixação de nutrientes, o que eviden

Fundamentos de tecnología química es un libro de texto y de enseñanza al servicio de las jóvenes generaciones que desean adquirir una formación profesional y especialmente para los que buscan una cualificacion en las actividades propias de las fabricas quimicas.

Neste trabalho, amostras policristalinas dos sistemas tetragonais BaBi2Nb2O9 (BBN), BBN co-dopado com Er3+/Yb3+ e BBN tri-dopado com Tm3+/Er3+/Yb3+ foram sintetizadas pelo método de estado sólido de alta temperatura. Difraço de raios-X, microscopia eletronica de varredura e fotoluminescencia a temperatura ambiente foram utilizadas para analisar as propriedades estruturais, morfologicas e oticas dos sistemas luminescentes. Os resultados indicam que todas as composiçes cristalizam no grupo espacial I4/mmm a temperatura ambiente e exibem emisses UC sob excitaço em 980nm por laser infravermelho. A serie BBN:Er3+/Yb3+ apresentou emisses UC verdes (528nm e 548nm) e emisso UC vermelha (664nm). Todos os fosforos da serie emitem luz verde-amarelada com alto percentual de saturaço, cujas coordenadas de cromaticidade so pouco sensiveis a variaço da potencia de bombeamento. Os fosforos tri-dopados BBN:Tm3+/Er3+/Yb3+ exibiram emisses UC azuis (463nm, 484nm), verdes (528nm, 548nm) e vermelhas (648nm, 664nm, 696nm). A introduço de ions Li+ no BBN:0,5%Tm3+0,05%Er3+8%Yb3+ induziu um ajuste dos valores triestimulos deslocando as coordenadas cromaticas do fosforo para a regio do branco ideal. Luz branca de alta pureza de cor proveniente da composiço BBN2LTEY foi obtida sob densidade de potencia moderada. Os resultados estabelecem a fase BBN como uma matriz hospedeira alternativa para a obtenço de materiais luminescentes com alta estabilidade termica e emisses UC intensas.

In "Researches Chemical and Philosophical," Humphry Davy presents a groundbreaking exploration of the intersection between chemistry and philosophy during the early 19th century. This collection of essays and lectures offers profound insights into the principles of chemical science, while also probing the philosophical implications of scientific discovery. Davys empirical approach, marked by vivid descriptions and elegant prose, reflects the Romantic periods emphasis on the unity of science and art, as he articulates the wonders of the natural world and the intricacies of chemical reactions. His work not only serves as a scientific discourse but also engages with the metaphysical questions surrounding existence and discovery, a hallmark of the eras intellectual curiosity. Humphry Davy, a pioneering British chemist, made significant contributions to the field, including the discovery of several alkali and alkaline earth metals. His diverse backgroundAiranging from his humble beginnings as a miners son to his tenure as the Chief Chemist at the Royal InstitutionAishaped his inquisitive mind and philosophical leanings. Davys experiences in varied scientific endeavors and his interactions with other luminaries of his time informed his thought processes, leading him to bridge the gap between scientific inquiry and philosophical reflection. This book is essential for readers interested in the history of science, the evolution of chemical theory, and the philosophical underpinnings of scientific thought. DavyAos eloquent prose and visionary ideas challenge contemporary perceptions and inspire a deeper appreciation of the interconnectedness of knowledge. For both scholars and enthusiasts, "Researches Chemical and Philosophical" serves as a testament to the power of inquiry and the beauty of the natural world.

In his book Rubber Hand Stamps and the Manipulation of Rubber, T. OConor Sloane delves into the history and practical applications of rubber hand stamps. Drawing upon a wealth of knowledge in materials science and industrial processes, Sloane explores the intricate details of how rubber is manipulated to create these essential tools for marking documents and goods. The book is written in a straightforward and informative style, making it accessible to both scholars and practitioners in the field. Sloanes thorough examination of the composition and production techniques involved in rubber hand stamps highlights their significance in everyday life and business operations. T. OConor Sloane, a renowned expert in materials engineering, possesses a deep understanding of rubber properties and applications. His research background and practical experience lay the foundation for his authoritative exploration of rubber hand stamps in this book. Sloanes expertise in the subject matter is evident throughout the text, providing readers with valuable insights into the craftsmanship and innovation behind these ubiquitous tools. I highly recommend Rubber Hand Stamps and the Manipulation of Rubber to anyone interested in the fascinating world of rubber manufacturing and industrial design. Sloanes meticulous analysis and comprehensive overview make this book an indispensable resource for enthusiasts and professionals alike.

El presente texto, Introducción a la Química analítica, proporciona los elementos necesarios para la apreciación de los problemas asociados a la adquisición y a la interpretación de la información analitica cuantitativa, y es hacia este objetivo donde deben dirigirse los esfuerzos del estudiante y del instructor.

Este trabalho é direcionado aos estudantes e profissionais que atuam ou que pretendem atuar em funções que envolvam a aplicação de estratégias de controle em processos industriais. Técnicos e engenhe

A área de controle de processos industriais é fundamental nas empresas que lidam com fluidos, onde a preocupação principal é controlar variáveis como vazão, pressão, nível, temperatura, pH, densidade

A biotecnologia vem sendo desenvolvida ao longo do tempo – dos primórdios da humanidade até 1677 (ano da invenção do microscópio óptico), do final do século XVII à década de 1970 (invenção das técnic

Este livro está inserido no campo de conhecimento das operações unitárias relativas ao fenômeno de transporte de quantidade de movimento. Aborda um conjunto de operações que envolvem o transporte de

A transferência de massa está presente em diversos processos, desde os mais simples, como a dissolução de açúcar em uma xícara de café, até os mais complexos, como aqueles presentes nas indústrias qu

A Química é uma ciência que permeia todas as áreas do conhecimento e tem nos encantado com sua arte e magia. Ela embalou o sonho dos alquimistas na busca da pedra filosofal e do elixir da longa vida,

A Química é uma ciência que permeia todas as áreas do conhecimento e tem nos encantado com sua arte e magia. Ela embalou o sonho dos alquimistas na busca da pedra filosofal e do elixir da longa vida,

Is an alchemical tract, it discusses gold; extracting its virtue, gold oil, how to make potable gold. The author is unknown, although it does at one point mention a date during the 17th Century.

Cartas que respiram, histórias que inspiram foi desenvolvido a partir de cartas escritas por pacientes com doenças respiratórias crônicas, doenças de longa duração e sem expectativa de cura, cujo pri