Ultraviolett

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Ultraviolet Light In Food Technology

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Author : Tatiana Koutchma
language : en
Publisher: CRC Press
Release Date : 2009-03-06

Ultraviolet Light In Food Technology written by Tatiana Koutchma and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009-03-06 with Science categories.

The production of environmentally friendly, sustainable, chemical-free food continues to challenge the food industry, spurring on investigations into alternative food processing techniques that are more sophisticated and diverse than current practices. Exploring one of these emerging solutions, Ultraviolet Light in Food Technology: Principles and Applications incorporates the fundamentals of continuous and pulsed UV light generation and propagation; current food regulations; recommendations for optimal UV reactor design, selection, and validation; information on both commercially available and under-development UV sources; and the outlook for future food applications. After reviewing essential terms, definitions, and current applications, the book emphasizes the need to properly assess the physical and chemical properties in foods that influence the effectiveness of UV treatment and impact inactivation kinetics. It also addresses the effects of UV processing on food quality, before considering the engineering aspects of UV light treatment, such as transport phenomena, process calculations, and continuous-flow reactor geometries. The book then describes the principles of validating UV reactors as well as the principles and applications of UV pulsed light, including microbial inactivation in water, meat, fruits, vegetables, and packaging materials. For anyone working in food research, development, and operations, this resource provides broad, accessible information on the science and applications of UV light technology. It shows how UV light irradiation can be used as a physical preservation method in food processing.

Iii Nitride Ultraviolet Emitters

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Author : Michael Kneissl
language : en
Publisher: Springer
Release Date : 2015-11-12

Iii Nitride Ultraviolet Emitters written by Michael Kneissl and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-11-12 with Technology & Engineering categories.

This book provides a comprehensive overview of the state-of-the-art in group III-nitride based ultraviolet LED and laser technologies, covering different substrate approaches, a review of optical, electronic and structural properties of InAlGaN materials as well as various optoelectronic components. In addition, the book gives an overview of a number of key application areas for UV emitters and detectors, including water purification, phototherapy, sensing, and UV curing. The book is written for researchers and graduate level students in the area of semiconductor materials, optoelectronics and devices as well as developers and engineers in the various application fields of UV emitters and detectors.

Ultraviolet Laser Technology And Applications

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Author : David L. Elliott
language : en
Publisher: Academic Press
Release Date : 2014-06-28

Ultraviolet Laser Technology And Applications written by David L. Elliott and has been published by Academic Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-06-28 with Science categories.

Ultraviolet Laser Technology and Applications is a hands-on reference text that identifies the main areas of UV laser technology; describes how each is applied; offers clearly illustrated examples of UV opticalsystems applications; and includes technical data on optics, lasers, materials, and systems. This book is unique for its comprehensive, in-depth coverage. Each chapter deals with a different aspect of the subject, beginning with UV light itself; moving through the optics, sources, and systems; and concluding with detailed descriptions of applications in various fields. The text enables practicing engineers and researchers to utilize concepts and innovations to solve actual problems encountered in UV optical technology applications. It also offers a wealth of information for equipment designers and manufacturers. Those in laser fields (including medical, electronics, and semiconductors), students, engineers, technicians, as well as newcomers to the subject who require a basic introduction to the topic, will all find Ultraviolet Laser Technology and Applications to be an essential resource. Serves as a valuable, practical reference to UV laser technology Presents detailed technical data and techniques Offers highly illustrated optics designs and beam delivery systems Includes an extensive bibliography, references, and glossary Covers all major UV laser markets and technology systems

Ultraviolet Led Technology For Food Applications

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Author : Tatiana Koutchma
language : en
Publisher: Academic Press
Release Date : 2019-08-10

Ultraviolet Led Technology For Food Applications written by Tatiana Koutchma and has been published by Academic Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-08-10 with Technology & Engineering categories.

Ultraviolet LED Technology for Food Applications: From Farms to Kitchens examines the next wave in the LED revolution and its ability to bring numerous advantages of UVC disinfection. As UVC LED-based light fixtures will become the driving force behind wider adoption, with potential use in the treatment of beverages, disinfection of food surfaces, packaging and other food contact and non-contact surfaces, this book presents the latest information, including LEDs unique properties and advantages and the developments and advances made in four areas of application, including produce production and horticulture, post-harvest and post processing storage, safety and point-of-use applications. Alternative opportunities to current practices of food production and processing that are more sophisticated and diverse are being intensively investigated in recent decades, things like Ultraviolet light (UV) irradiation. The effects of UVC LEDs against bacteria, viruses and fungi already have been demonstrated and reported, along with the first applications for disinfection of air, water and surface made for the "point-of-use" integration. Brings unique advantages of LEDs for foods from farm to kitchens Explores applications and advances in LEDs for horticulture, crops production, postharvest reservation and produce storage Investigates UV LEDs in food safety

Ultraviolet Light In Food Technology

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Author : Tatiana Koutchma
language : en
Publisher: CRC Press
Release Date : 2019-05-20

UV light is one of a number of emerging non-thermal food processing technologies that can be used in a broad range of applications producing food products with longer shelf-life, more safe, and with higher nutritional quality. The new edition of Ultraviolet Light in Food Technology: Principles and Applications will present recent understanding of the fundamentals of UV light along with new applied knowledge that has accumulated during the 7 years since the first edition published in 2009. The new edition of the book will have 11 chapters including 2 new chapters--on chemical destruction with UV light and food plant safety—along with 6 chapters greatly expanded and updated.

Sources And Applications Of Ultraviolet Radiation

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Author : Roger Phillips
language : en
Publisher:
Release Date : 1983

Sources And Applications Of Ultraviolet Radiation written by Roger Phillips and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1983 with Science categories.

This book breaks new ground in that it assembles much previously scattered and unpublished material on ultraviolet sources into a cohesive and logical format. It provides a comprehensive treatment of the subject that will be of interest to all those engaged in photochemistry, photobiology and photophysics.

Ultraviolet Light In Human Health Diseases And Environment

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Author : Shamim I. Ahmad
language : en
Publisher: Springer
Release Date : 2017-11-08

Ultraviolet Light In Human Health Diseases And Environment written by Shamim I. Ahmad and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-11-08 with Medical categories.

This book is about the roles and importance of Ultraviolet (UV) light from sun and from man-made UV lamps in our daily life, on health and diseases, also its application in sterilization and treatment. The key words are: reactive oxygen species, DNA damage, UV mutagenicity, skin cancers, polymorphous light eruption, Xeroderma pigmentosum, vitiligo, psoriasis, rheumatoid arthritis, diabetes mellitus, metabolic syndromes, cardiovascular diseases, dermatology, photobiology, photodermatosis, vitamin D synthesis, vitamin D efficiency, water sterilization, blood sterilization, phototherapies, skin tanning and UV dosimeter. The book starts with introduction to UV light and the history of development of UV lamps and its applications. It then moves to describing the interaction of this light with biological components and the production of reactive oxygen species, their roles in cell signaling, cellular defense from foreign invaders, in mutagenesis leading to skin diseases including vitiligo, polymorphous light eruption and various forms of skin cancer. Then it presents the synthesis and importance of UV light and diseases, induced due to the deficiency of vitamin D. Roles of UV light in sterilization, disinfection, phototherapies are depicted in the next part and finally use and abuse of UV light in tanning salon and the availability and importance of use of UV dosimeter are highlighted. The three main focuses of this book are: - Damage to biological systems by UV light leading to certain skin diseases; most importantly skin cancers. - Importance of UV light in the in vivo synthesis of vitamin D when human bodies are exposed to it. - Diseases caused due to the deficiency of vitamin D and the use of UV lamps in phototherapy and sterilization processes. The editor has considerable experience in publishing medical books and has used it critically selecting the matters which will attract the readers from many areas of medical and non-medical fields. It is hoped that the materials presented in this book will give great benefit and will stimulate both novice and expert researchers in the field. The book gives excellent overviews of the current status of research and pointers to the future research achievements. Clinicians, medical general practitioners, technicians and staff working in UV related industries and especially those working in tanning salon should benefit from the information presented in safe handling of this light.

Protection Of The Skin Against Ultraviolet Radiations

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Author : André Rougier
language : en
Publisher: John Libbey Eurotext
Release Date : 1998

Protection Of The Skin Against Ultraviolet Radiations written by André Rougier and has been published by John Libbey Eurotext this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998 with Medical categories.

Are ultraviolet rays dangerous? This is the question addressed by the leading dermatological experts who compare their wide clinical experience in this book. It has now been established that ultraviolet rays provoke erythema and can cause considerable damage to blood vessels. But what is their precise impact on the occurrence of premature ageing and cancer of the skin, and other serious consequences? The specialists contributing to this work report on their observations and give objective and reasoned opinions on this question. Their explanations are rounded out by many colour illustrations and diagrams.

Uv A

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Author : John Parrish
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06

Uv A written by John Parrish and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Science categories.

The origin of this text was a request by industry and government to summarize the biological effects and to estimate the limits of safe exposure to longwave ul traviolet radiation. The specific issue was the safety of a small medium-pressure mercury arc designed to emit UV-A (NUVA-Lite, L. D. Caulk Co. , Milford, Delaware) for photopolymerization of resinous fillings used in dentistry. How- ever, the context grew to become a consideration of the risks and benefits to hu mans of electromagnetic radiation between the biologically active short UV and the visible spectrum. We have accumulated data from our own experimental work and from the literature and have attempted to put this information in the perspective of known biologic effects of ultraviolet radiation as it influences hu mans. Interest in the biological effects of longwave ultraviolet radiation is increas ing in all of the many scientific disciplines that make up the complex field of photobiology. In order to minimize the chance for error and personal prejudice and to maximize the use of expertise, each chapter has been reviewed by several authorities. Some of the contributions of this group led to significant alterations and creative additions to the chapter, and these persons deserve not only our sin cere gratitude but also recognition by the reader. These include Chapters 2 and 3: Dr. Robert E. Levin, Mr. Charles P. Comeau, Mr. Donald Gonser, Dr. David Sliney; Chapter 5: Dr. Jerry Williams, Dr. Robert Webb, Dr. Madhu A.

Ultraviolet Germicidal Irradiation Handbook

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Author : Wladyslaw Kowalski
language : en
Publisher: Springer Science & Business Media
Release Date : 2010-01-12

Ultraviolet Germicidal Irradiation Handbook written by Wladyslaw Kowalski and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010-01-12 with Technology & Engineering categories.

This reference covers technical information on ultraviolet germicidal irradiation and its application to air and surface disinfection and the control of pathogens and allergens. Its main focus is airborne microbes and surface contamination applications.

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