Development And Use Of Compact Instruments For Tropospheric Investigations Based On Optical Spectroscopy From Mobile Platforms
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Development And Use Of Compact Instruments For Tropospheric Investigations Based On Optical Spectroscopy From Mobile Platforms
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Author : Alexis Merlaud
language : en
Publisher: Presses univ. de Louvain
Release Date : 2013-03-31
Development And Use Of Compact Instruments For Tropospheric Investigations Based On Optical Spectroscopy From Mobile Platforms written by Alexis Merlaud and has been published by Presses univ. de Louvain this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-03-31 with Science categories.
This thesis presents the development of four different remote-sensing instruments dedicated to atmospheric research and their use in field campaigns between 2008 and 2012. The instruments are based on uv-visible spectrometers and installed respectively on a scientific aircraft, ultralight aircraft, and cars. One of the instruments is targeted to operate from an Unmanned Aerial Vehicle (UAV). The Differential Optical Absorption Spectroscopy (DOAS) technique is used to quantify the molecular absorption in the spectra of scattered sky light. These absorptions are then interpreted by modeling the transfer of radiation in the atmosphere. Airborne platforms enable new measurement geometries, leading for instance to a high sensitivity in the free troposphere. On the other hand, a miniaturization effort is required, especially for the instruments onboard ultralight aircraft and UAV. Reaching the limited size, weight, and power consumption is possible through the use of compact spectrometers and computers, together with custom built electronics circuits and housings. A common target of the different experiments is to quantify tropospheric nitrogen dioxide (NO2). Regarding this trace gas, the developed instruments provide complementary findings, such as the vertical distribution in the pristine Arctic or the levels in the exhaust plumes of large cities like Riyadh. Car-borne measurements in North-West Europe reveal the horizontal gradients of surface NO2 at various scales. The UAV payload is intended to produce high spatial resolution maps of tropospheric NO2 columns.
Photocatalytic Perovskite Materials
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Author : Tariq Altalhi
language : en
Publisher: Elsevier
Release Date : 2025-06-16
Photocatalytic Perovskite Materials written by Tariq Altalhi and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2025-06-16 with Technology & Engineering categories.
Photocatalytic Perovskite Materials: Green Sustainable Process for Chemical and Environmental Engineering and Science (GSPCEES) contains up-to-date information on hot topics concerning perovskite-based photocatalysts. The book gives readers an in-depth glance at photocatalysis via perovskite semiconductors and their applications in a diverse range of industries. It provides an overview of the historical development of conventional catalysis and (perovskite) photocatalysis, its challenges, strategies for improvement, and methods for synthesis and selectivity enhancement. Users will find applications for solar hydrogen production, solar-driven fuel generation, volatile organic compounds, CO2 reduction, environmental remediation, degrading organic pollutants from wastewater, and organic reactions.In addition, the book deals with photocatalytic behavior of inorganic halide perovskites, organic-inorganic hybrid perovskite photocatalysts, organic-organic composite perovskite for photocatalysis, metal halide perovskite quantum dots, perovskite-based oxynitrides for photocatalysis, visible light active perovskites based photocatalysts, surface modification of perovskite materials to improve photocatalytic activity, and charge separation in perovskite nanostructures. - Contains hot pocket reviews related to photocatalysis via perovskite semiconductors - Focuses on the properties of perovskites as photocatalysts and their performance in multiple applications - Introduces applications in a broad range of industries
Commerce Business Daily
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Author :
language : en
Publisher:
Release Date : 2001-02
Commerce Business Daily written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2001-02 with Government purchasing categories.
Scientific And Technical Aerospace Reports
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Author :
language : en
Publisher:
Release Date : 1995
Scientific And Technical Aerospace Reports written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1995 with Aeronautics categories.
Portable Spectroscopy And Spectrometry Applications
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Author : Richard A. Crocombe
language : en
Publisher: John Wiley & Sons
Release Date : 2021-04-26
Portable Spectroscopy And Spectrometry Applications written by Richard A. Crocombe and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-04-26 with Science categories.
The most comprehensive resource available on the many applications of portable spectrometers, including material not found in any other published work Portable Spectroscopy and Spectrometry: Volume Two is an authoritative and up-to-date compendium of the diverse applications for portable spectrometers across numerous disciplines. Whereas Volume One focuses on the specific technologies of the portable spectrometers themselves, Volume Two explores the use of portable instruments in wide range of fields, including pharmaceutical development, clinical research, food analysis, forensic science, geology, astrobiology, cultural heritage and archaeology. Volume Two features contributions by a multidisciplinary team of experts with hands-on experience using portable instruments in their respective areas of expertise. Organized both by instrumentation type and by scientific or technical discipline, 21 detailed chapters cover various applications of portable ion mobility spectrometry (IMS), infrared and near-infrared (NIR) spectroscopy, Raman and x-ray fluorescence (XRF) spectroscopy, smartphone spectroscopy, and many others. Filling a significant gap in literature on the subject, the second volume of Portable Spectroscopy and Spectrometry: Features a significant amount of content published for the first time, or not available in existing literature Brings together work by authors with assorted backgrounds and fields of study Discusses the central role of applications in portable instrument development Covers the algorithms, calibrations, and libraries that are of critical importance to successful applications of portable instruments Includes chapters on portable spectroscopy applications in areas such as the military, agriculture and feed, hazardous materials (HazMat), art conservation, and environmental science Portable Spectroscopy and Spectrometry: Volume Two is an indispensable resource for developers of portable instruments in universities, research institutes, instrument companies, civilian and government purchasers, trainers, operators of portable instruments, and educators and students in portable spectroscopy courses.
Weapon Systems
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Author :
language : en
Publisher:
Release Date : 2002
Weapon Systems written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002 with categories.
Atmospheric Measurements With Unmanned Aerial Systems Uas
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Author : Marcelo I. Guzman
language : en
Publisher: MDPI
Release Date : 2021-03-02
Atmospheric Measurements With Unmanned Aerial Systems Uas written by Marcelo I. Guzman and has been published by MDPI this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-03-02 with Science categories.
This book is the first literature collection focused on the development and implementation of unmanned aircraft systems (UAS) and their integration with sensors for atmospheric measurements on Earth. The research covered in the book combines chemical, physical, and meteorological measurements performed in field campaigns, as well as conceptual and laboratory work. Useful examples for the development of platforms and autonomous systems for environmental studies are provided, which demonstrate how careful the operation of sensors aboard UAS must be to gather information for remote sensing in the atmosphere. The work serves as a key collection of articles to introduce the topic to new researchers interested in the field, guide future studies, and motivate measurements to improve our understanding of the Earth’s complex atmosphere.
Electrical Electronics Abstracts
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Author :
language : en
Publisher:
Release Date : 1997
Electrical Electronics Abstracts written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1997 with Electrical engineering categories.
Government Reports Announcements Index
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Author :
language : en
Publisher:
Release Date : 1996
Government Reports Announcements Index written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1996 with Science categories.
International Aerospace Abstracts
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Author :
language : en
Publisher:
Release Date : 1999
International Aerospace Abstracts written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1999 with Aeronautics categories.