Environmental Monitoring Using Diode-laser-based Spectroscopic Techniques PDF Download
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Author: Gabriel Somesfalean
Publisher:
ISBN:
Category : Diodes, Semiconductor
Languages : en
Pages : 190
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Book Description
Author: Gabriel Somesfalean
Publisher:
ISBN:
Category : Diodes, Semiconductor
Languages : en
Pages : 190
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Book Description
Author: Chi Kong Ng
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
Author: Peter Hering
Publisher: Springer Science & Business Media
ISBN: 3662082551
Category : Science
Languages : en
Pages : 353
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Book Description
This comprehensive reference work illustrates the state of the art of laser-induced analytical methods in environmental and life sciences via an interdisciplinary approach. Ky techniques for remote sensing in the atmosphere as well as diagnostic methods for soil, water and air contamination and exhaled breath are described. Each a prominent scientist, the authors report on their current research; demonstrate that multi-disciplinary applications are possible; and employ examples on how existing environmental diagnostic methods have found their way into the life sciences.
Author: Markus W. Sigrist
Publisher: John Wiley & Sons
ISBN: 9780471558750
Category : Technology & Engineering
Languages : en
Pages : 564
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Book Description
Leading experts discuss the characteristics, advantages, limitations and future aspects of modern spectroscopic techniques for environmental analysis. Demonstrates how these methods can be applied to trace gas detection and assessment. Concentrates on the latest techniques--both laser and non-laser based--which offer advantages for air pollution and gas monitoring as opposed to more conventional methods. Numerous examples of applications illustrate the potential of the techniques backed up by cutting-edge information and representative data.
Author: R. Grisar
Publisher: Springer Science & Business Media
ISBN: 9400939914
Category : Science
Languages : en
Pages : 180
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Book Description
By now it has been nearly twenty years since the pioneering studies at the MIT-Lincoln Laboratories, Lexington, USA, demonstrated the unique capabilities of lead salt tunable diode lasers (TDL) for infrared absorption spectroscopy. The progress in the use of TDL instrumentation for a wide variety of scientific applications was described by a great number of papers since, however, comparatively few meetings were specifically devoted to this subject. In 1980 the conference on "High Resolution Infrared Spectroscopy Applications and Developments" at the National Bureau of Standards in Gaithersburg, USA, reviewed the state of the art of tunable diode lasers together with Fourier Transform Spectroscopy and other laser spectroscopic techniques. Three years later in 1983 the SPIE Conference in San Diego, USA, dedicated one meeting to "Tunable Diode Laser Development and Spectroscopy" Applications. It appeared appropriate after a further interval of three years to organize another meeting about this quickly advancing field. In November of 1986 an International Symposium on "Monitoring of Gaseous Pollutants by Tunable Diode Lasers" was organized by and held at the Fraunhofer-Insti tut fuer Physikalische Messtechnik in Freiburg, FRG. The main emphasis of this conference was put on the applications of TDL techniques to the solution of problems of environmental relevance : The measurement of atmospheric trace gases and the monitoring of exhaust gases from automobile and power plant stack emitters. The state of diode laser development and application of TDL instruments to scientific molecular spectroscopy were not directly subjects of the meeting.
Author: Jens Bösenberg
Publisher: Springer Science & Business Media
ISBN: 3662034050
Category : Science
Languages : en
Pages : 420
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Book Description
Jens Bosenberg Max-Planck-Institut fur Meteorologie, Bundesstr. 55, D-20146 Hamburg, Germany TESLAS, which stands for Tropospheric Environmental Studies by Laser Sounding, was formed in November 1987 as a subproject of EUROTRAC to enhance the measurement capabilities for vertical profiling of ozone in the troposphere by means of laser remote sensing. For studies of several atmospheric processes related to the formation and redistribution of photo-oxidants there was a clear need for measuring extended time series with appropriate vertical and temporal resolution. These could not be obtained by conventional in situ techniques, at least not with affordable effort, so remote sensing appeared to be the best way to obtain the required information. At the beginning of the subproject, some Differential Absorption Lidar (DIAL) systems for measuring the vertical distribution of ozone already existed, but their use was restricted to very few laboratories and very few measurement campaigns, since the instruments were highly complex, rather unreliable, and required extensive efforts for maintenance and operation by skilled scientists. In addition, the accuracy of these measurements under a variety of meteorological conditions was not really well established. The main tasks within TESLAS therefore were to develop fully the DIAL-methodology for remote sensing of tropospheric ozone, and to develop instruments which are accurate, reliable, easy to operate, and suitable for field deployment or airborne operation.
Author: Alan Fried
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 370
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Book Description
Author: Dr. Steven J. Davis
Publisher:
ISBN:
Category :
Languages : en
Pages : 145
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Book Description
A program to apply diode lasers and ultra-sensitive absorption techniques to a variety of important Air Force problems is described. In this program, new gas phase sensors were developed for several applications including: diagnostics for advanced chemical oxygen iodine lasers (COIL), gas phase sensors for atmospheric studies and environmental monitoring, process manufacturing, and development of control strategies based on outputs from the sensors. In this report we present experimental measurements of collisional broadening coefficients of selected transitions in molecular oxygen and water vapor. We make comparisons to earlier measurements and to models for line broadening. We also discuss the production of optical amplification in molecular iodine pumped by a low power visible wavelength diode laser. Finally we present data from characterizations of diode lasers appropriate for development into sensitive diagnostics for the NCi/I laser system.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 229
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Book Description
The seventh topical meeting on Lasers and Applications to Chemical and Environmental Analysis continued the tradition of state-of-the-art research and applications and was presented in an informal atmosphere designed to foster communication among researchers and practitioners in the field. New developments in optical sources, instrumentation, and spectroscopic techniques are principal driving forces for the increased use of lasers in chemical analysis and environmental monitoring. Topics that were covered include: Application of new laser sources to analytical spectroscopy; Diode laser applications in combustion, industrial, and atmospheric measurements; Laser diagnostics for combustion; Laser based detection coupled to microanalytical separations; Microoptical systems for chemical analysis; Laser based detection for high density chemical sensing arrays; Development and applications of single-molecule spectroscopy; Fluorescence based methods for detection of individual biomolecules (including imaging).
Author: Ema Ekundayo
Publisher: BoD – Books on Demand
ISBN: 9533077247
Category : Technology & Engineering
Languages : en
Pages : 542
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Book Description
"Environmental Monitoring" is a book designed by InTech - Open Access Publisher in collaboration with scientists and researchers from all over the world. The book is designed to present recent research advances and developments in the field of environmental monitoring to a global audience of scientists, researchers, environmental educators, administrators, managers, technicians, students, environmental enthusiasts and the general public. The book consists of a series of sections and chapters addressing topics like the monitoring of heavy metal contaminants in varied environments, biolgical monitoring/ecotoxicological studies; and the use of wireless sensor networks/Geosensor webs in environmental monitoring.
