Xem 1-20 trên 129 kết quả Light applicators
  • Booklet 1 of the licht.de series of publications is intended for all those who want to delve into the topic of light and lighting or wish to familiarize themselves with the basics of lighting technology. It also forms the introduction to a series of publications designed to provide useful information on lighting applications for all those involved in planning or decision-making in the field of lighting. One of the principal objectives of all licht.de publications is to promote awareness of a medium which we generally take for granted and use without a second thought.

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  • Biophotonics is revolutionizing the field of medicine, biology and chemistry and creating a new breed of medical engineers while at the same time getting engineers a taste of medicine. From an engineer's perspective, biophotonics is the application of photonics - the technology of generating and harnessing packet of light energy called photons - to image, detect and manipulate biological materials. In biology the understanding of molecular mechanisms, function of proteins and molecules has seen great new advances.

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  • Much new material has been added to this second edition. Besides a totally new chapter on radionuclides, the text has been reorganized and updated with separate chapters on metals, light nonaqueous phase liquids (LNAPLs), dense nonaqueous phase liquids (DNAPLs), and biodegradation. Also, some end-of-chapter exercises have been added. The dictionary of inorganic pollutants has been enlarged and some important organic pollutants added.

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  • Critical aspects for the wider application of ultraviolet (UV) light in drinking water treatment sometimes have been described, in spite of the success of the method as established in the field: • Absence of well-established and generally accepted design rules • Absence of a permanently active residual agent in the treated water • Suspicions of the possible photochemical formation of by-products • Possibility of revival–reactivation by repair mechanisms of irradiated organisms • Need for operational control of the permanent reliability of the technique...

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  • Imagine a world in which the colors you see do not necessarily represent the correct ones. Imagine, when you approach a traffic light, you cannot tell what color the light is. Imagine the colors of traffic lights changing from one block to the next one. Could you? If you can’t, just go to your computer. In the world of visual computing, you cannot be sure what the colors will be. Even today. And today, the awareness of computer professionals to color has grown orders of magnitude.

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  • This book includes contributions from researchers around the world on numerical developments and applications to predict fluid flow and heat transfer, with an emphasis on thermal hydraulics computational fluid dynamics. Our ability to simulate larger problems with greater fidelity has vastly expanded over the past decade. The collection of material presented in this book augments the ever-increasing body of knowledge concerning the important topic of thermal hydraulics.

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  • I like playing around with words and letters. You probably know that LASER is an artificial word derived from “Light Amplification by Stimulated Emission of Radiation”. When starting my lecture on “Laser–Tissue Interactions” I tend to write this derivation on the board. I continue with “LIGHT: Lasers Irradiate Germinated and Healthy Tissues”. Why? Lasers cut everything, if appropriate laser parameters are selected. There is no shield around healthy tissue. And there is no laser that fits all sizes as some clothes do. Lasers never have been some kind of wonder instruments.

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  • The purpose of this book is to provide the reader with an introduction to lasers and their industrial applications. To facilitate this objective, such devices as photodetectors and modulators, which are frequently found in laser applications, are also covered. And to make the book as self-contained as possible, the concepts of basic optics that are pertinent to lasers and their applications are presented.

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  • This volume, of a two volume set on ionic liquids, focuses on the applications of ionic liquids in a growing range of areas. Throughout the 1990s, it seemed that most of the attention in the area of ionic liquids applications was directed toward their use as solvents for organic and transition-metal-catalyzed reactions. Certainly, this interest continues on to the present date, but the most innovative uses of ionic liquids span a much more diverse field than just synthesis.

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  • Overall, Cambodia’s rubber export competitiveness remains weaker than that of other countries in the region, except for the Lao People’s Democratic Republic. One of the problems is that despite the application of conventional technology for the management and maintenance of rubber trees and traditional rubber clones, per- hectare rubber yield remains lower than in other countries of the region.

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  • Historic gas street lamps in cities like Berlin, Prague and Warsaw can now be upgraded to energy-saving LED technology, thanks to a solid-state retrofit designed by Berlin-based Braun Schaltgeräte & Service with assistance from LED solutions provider Future Lighting Solutions.

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  • It is a pleasure and an honor to comment on this outstanding book, Spectroscopic Ellipsometry: Principles and Applications by Dr H. Fujiwara. It is a tutorial introduction, yet offers considerable depth into advanced topics such as generalized ellipsometry and advanced dispersion and oscillator models for analysis of complex materials systems. Each chapter is extremely well referenced, with over 400 literature citations in total, providing the reader rapid access to considerable published literature from fundamentals to recent advances.

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  • Brillouin scattering was discovered in 1922 by Louis Brillouin [1]. It is one of a number of characteristic scattering phenomena that occur when light interacts with solid, liquid or gaseous media and corresponds to the scattering of light from thermally-induced acoustical waves (propagating pressure/density waves) present in media at all temperatures. At normal light levels the amount of scattering is small. The characteristics of the scattering can offer interesting information about the properties of the medium (temperature, pressure) and form the basis for remote fibre sensor devices.

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  • Introduction to LEDs: How LEDs work + some points. Comparison with other sources of light. LED in communication. Blue &White LED technologies. How they are made? Their application? Brief about blue laser? Stands for light emitting diode. Semiconductor device: p-n junction forward-biased.current emits incoherent narrow spectrum light (due to recombination in transition region near the junction.) Color of the emitted light depends on the chemical of the semiconducting material used. (Near-ultraviolet, visible or infrared.)...

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  • Electric motors provide the driving power for a large and still increasing part of our modern industrial economy. The range of sizes and types of motors is large and the number and diversity of applications continues to expand. The computer on which this book is typed, for example, has several electric motors inside, in the cooling fan and in the disk drives. There is even a little motor that is used to eject the removable disk from its drive. All around us there are electrical devices that move things around. Just about everything in one’s life that whine, whirrs or...

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  • Studio photography covers a wide range of disciplines. In its simplest form it is part of the documentation process for a driver’s licence, ID, passport, etc.; at its most complex, cinematography and its role in the creation of films. Within this spectrum fall portraiture, fashion, still life, film library, product, advertising illustration, industrial, corporate and architectural.

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  • The first edition of The Electronics Handbook was published in 1996. Between then and now, tremendous changes have occurred in electronics engineering. During this same period, the value of The Electronics Handbook has been recognized by thousands of readers all over the world, for which the editor and authors are very grateful. The numerous changes in technology over the past few years have led to the publication of a second edition of The Electronics Handbook. This new edition builds upon the solid foundation of fundamental theory and practical applications of the original work.

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  • Important notice Many practical techniques described in this book involve potentially dangerous applications of electricity and engineering equipment. The authors, editors and publishers cannot take responsibility for any personal, professional or financial risk involved in carrying out these techniques, or any resulting injury, accident or loss. The techniques described in this book should only be implemented by professional and fully qualified electrical engineers using their own professional judgement and due regard to health and safety issues....

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  • The purpose of a preface in our view is rather unashamedly to sell the book—to communicate the message of the book succinctly and either to motivate the reader to explore its content or to leave the reader feeling that just maybe he or she is losing out if the book’s theme does not fire their imagination.

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  • In science we study about the laws of nature and its verification and in technology, we study the applications of these laws to human needs. Electronics is the science and technology of the passage of charged particles in a gas or vacuum or semiconductor.

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