Results 161 to 170 of about 1,621,458 (196)
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Analytical Chemistry, 2009
Atmospheric pressure chemical ionization-tandem mass spectrometry (APCI-MS/MS) was applied for the first time to the direct analysis of octamethylcyclotetrasiloxane (D4) and decamethylcyclopentasiloxane (D5) in gaseous matrixes without extraction or prior chromatographic separation.
Serge Moore +4 more
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Atmospheric pressure chemical ionization-tandem mass spectrometry (APCI-MS/MS) was applied for the first time to the direct analysis of octamethylcyclotetrasiloxane (D4) and decamethylcyclopentasiloxane (D5) in gaseous matrixes without extraction or prior chromatographic separation.
Serge Moore +4 more
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Environmental Monitoring and Assessment, 2013
Rapid urbanization and population growth resulted in severe deterioration of air quality in most of the major cities in India. Therefore, it is essential to ascertain the contribution of various sources of air pollution to enable us to determine effective control policies.
S. Pushpavanam, N. Selvaraju, N. Anu
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Rapid urbanization and population growth resulted in severe deterioration of air quality in most of the major cities in India. Therefore, it is essential to ascertain the contribution of various sources of air pollution to enable us to determine effective control policies.
S. Pushpavanam, N. Selvaraju, N. Anu
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The Journal of Physical Chemistry A, 1997
Author Institution: Chemistry Division, U.S.Naval Research Laboratory; DEPARTMENT OF CHEMISTRY, UNIVERSITY OF NEW ...
Jane K. Rice +4 more
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Author Institution: Chemistry Division, U.S.Naval Research Laboratory; DEPARTMENT OF CHEMISTRY, UNIVERSITY OF NEW ...
Jane K. Rice +4 more
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Materials Science and Engineering: A, 1999
Abstract Uncoated and copper electroless coated fine NiTi superelastic particles have been incorporated into a liquid SnPbAg matrix. The wettability of the Cu coating by the molten alloy was determined with a wetting balance. The composite interfaces have been investigated by Auger electron spectroscopy (AES). Uncoated NiTi reacted with the matrix to
J. Chazelas +3 more
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Abstract Uncoated and copper electroless coated fine NiTi superelastic particles have been incorporated into a liquid SnPbAg matrix. The wettability of the Cu coating by the molten alloy was determined with a wetting balance. The composite interfaces have been investigated by Auger electron spectroscopy (AES). Uncoated NiTi reacted with the matrix to
J. Chazelas +3 more
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SPIE Proceedings, 2015
Osteoporosis is a major bone disease that connotes the risk of fragility fractures resulting from alterations to bone quantity and/or quality to mechanical competence. Bone strength arises from both bone quantity and quality. Assessment of bone quality and bone quantity is important for prediction of fracture risk.
Tadahiro Iimura +3 more
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Osteoporosis is a major bone disease that connotes the risk of fragility fractures resulting from alterations to bone quantity and/or quality to mechanical competence. Bone strength arises from both bone quantity and quality. Assessment of bone quality and bone quantity is important for prediction of fracture risk.
Tadahiro Iimura +3 more
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Canadian Journal of Chemistry, 1983
The techniques of factor analysis are used to investigate a data matrix constructed from magnetic resonance parameters for seventy-five 4-substituted styrenes, α-methylstyrenes, and α-tert-butylstyrenes and 3-substituted styrenes and α-methylstyrenes (with fifteen common substituents for each series).
Gordon K. Hamer +8 more
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The techniques of factor analysis are used to investigate a data matrix constructed from magnetic resonance parameters for seventy-five 4-substituted styrenes, α-methylstyrenes, and α-tert-butylstyrenes and 3-substituted styrenes and α-methylstyrenes (with fifteen common substituents for each series).
Gordon K. Hamer +8 more
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Spectrochimica Acta Part A: Molecular Spectroscopy, 1971
Abstract Matrix spectroscopy is useful as an analytical tool provided certain fundamental modifications are made in experimental technique. Apparatus requirements and sample preparation procedures are detailed. Only conventional spectrometric instrumentation is used.
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Abstract Matrix spectroscopy is useful as an analytical tool provided certain fundamental modifications are made in experimental technique. Apparatus requirements and sample preparation procedures are detailed. Only conventional spectrometric instrumentation is used.
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Forensic Science International, 2014
Chemical analysis of latent fingermarks, "touch chemistry," has the potential of providing intelligence or forensically relevant information. Matrix-assisted laser desorption ionization/time-of-flight mass spectrometry (MALDI/TOF MS) was used as an analytical platform for obtaining mass spectra and chemical images of target drugs and explosives in ...
Kimberly A. Kaplan-Sandquist +2 more
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Chemical analysis of latent fingermarks, "touch chemistry," has the potential of providing intelligence or forensically relevant information. Matrix-assisted laser desorption ionization/time-of-flight mass spectrometry (MALDI/TOF MS) was used as an analytical platform for obtaining mass spectra and chemical images of target drugs and explosives in ...
Kimberly A. Kaplan-Sandquist +2 more
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Journal of Magnetic Resonance, Series A, 1995
Abstract Propagation of errors in a multispin system, from the experimental peak volumes into magnetization-exchange (cross relaxation or chemical exchange) rates, was calculated analytically. An explicit expression was derived for the error propagator. The error for each magnetization-exchange rate constant has a minimum, with the position dependent
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Abstract Propagation of errors in a multispin system, from the experimental peak volumes into magnetization-exchange (cross relaxation or chemical exchange) rates, was calculated analytically. An explicit expression was derived for the error propagator. The error for each magnetization-exchange rate constant has a minimum, with the position dependent
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The International Journal of Life Cycle Assessment, 2005
Allocation is required when quantifying environmental impacts of individual products from multi-product manufacturing plants. The International Organization for Standardization (ISO) recommends in ISO 14041 that allocation should reflect underlying physical relationships between inputs and outputs, or in the absence of such knowledge, allocation should
Andrew Feitz +4 more
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Allocation is required when quantifying environmental impacts of individual products from multi-product manufacturing plants. The International Organization for Standardization (ISO) recommends in ISO 14041 that allocation should reflect underlying physical relationships between inputs and outputs, or in the absence of such knowledge, allocation should
Andrew Feitz +4 more
openaire +2 more sources