نتایج جستجو برای: via conducting some indoor experiments

تعداد نتایج: 2331619  

Journal: :Indoor air 2013
L Morawska A Afshari G N Bae G Buonanno C Y H Chao O Hänninen W Hofmann C Isaxon E R Jayaratne P Pasanen T Salthammer M Waring A Wierzbicka

Motivated by growing considerations of the scale, severity, and risks associated with human exposure to indoor particulate matter, this work reviewed existing literature to: (i) identify state-of-the-art experimental techniques used for personal exposure assessment; (ii) compare exposure levels reported for domestic/school settings in different countries (excluding exposure to environmental tob...

Background and objective: Indoor air pollutants are among the five most important environmental health risks. In recent years, concerns regarding indoor air in buildings have increased. In this review, studies conducted on portable air cleaners have been investigated. Materials and methods: After determining the keywords and conducting comprehensive searches in the internet databases, taking i...

Journal: :IEEE Trans. Geoscience and Remote Sensing 2000
Lluís Sagués Juan M. Lopez-Sanchez Joaquim Fortuny-Guasch Xavier Fàbregas Antoni Broquetas Alois J. Sieber

A coherence optimization method, which makes use of polarimetry to enhance the quality of SAR interferograms, has been experimentally tested under laboratory conditions in an anechoic chamber. By carefully selecting the polarization in both images, the resulting interferogram exhibits an improved coherence above the standard HH or VV channel. This higher coherence produces a lower phase varianc...

This paper establishes a direct method for solving variational problems via a set of Radial basis functions (RBFs) with Gauss-Chebyshev collocation centers. The method consist of reducing a variational problem into a mathematical programming problem. The authors use some optimization techniques to solve the reduced problem. Accuracy and stability of the multiquadric, Gaussian and inverse multiq...

Journal: :Atmospheric environment 2007
Lisa K Baxter Jane E Clougherty Chritopher J Paciorek Rosalind J Wright Jonathan I Levy

Previous studies have identified associations between traffic-related air pollution and adverse health effects. Most have used measurements from a few central ambient monitors and/or some measure of traffic as indicators of exposure, disregarding spatial variability and/or factors influencing personal exposure-ambient concentration relationships. This study seeks to utilize publicly available d...

2014
Ki-Hyun Kim Yong-Hyun Kim Bo-Won Kim Jeong-Hyeon Ahn Min-Suk Bae Richard J C Brown

To assess the robustness of various indoor air quality (IAQ) indices, we explored the possible role of reproducibility-induced variability in the measurements of different pollutants under similar sampling and emissions conditions. Polluted indoor conditions were generated by pan frying fish samples in a closed room. A total of 11 experiments were carried out to measure a list of key variables ...

2013
Rong Chen Wen-Pei Sung Hung-Chang Chang Yi-Rou Chi

A human life demand set to emerge in the future is the achievement of sustainability by maintaining a comfortable indoor environment without excessive reliance on energy-consuming air conditioners. The major research processes in this study are: (1) measuring indoor air quality and thermal comfort to evaluate the comfort of an indoor environment; (2) implementing questionnaire survey analysis t...

Journal: :Geophysical Journal International 1978

Journal: :Scientific American 1889

1998
Catherine Eckel Rick K. Wilson Cathleen Johnson Mark McLeod

provided critical assistance in conducting the computer controlled experiments at Texas A&M. Finally, we spent some time bending the ears of

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