Results 291 to 300 of about 5,133,566 (336)

Symbols, Units and Nomenclature for Atmospheric Transmission

Optical Engineering, 1966
This report discusses concepts, symbols, units and nomenclature for describing the transmission of radiant flux through earth's variable density atmosphere. The geometrical concepts used in the field of photometry and radiometry are the same. A common set of symbols is proposed for use in both fields together with some terms not previously used.
R. Clark Jones, Irving J. Spiro, David Q. Wark   +2 more
openaire   +2 more sources

Acid inputs from the atmosphere in the United Kingdom

Soil Use and Management, 1985
Abstract. Inputs of acidity to the ground arise through two distinct routes: wet deposition which includes all acidity deposited in rain and snow and dry deposition, the direct sorption of SO2, NO2 or HNO3 gases by vegetation or soil surfaces. The acidity from dry deposition of SO2 and NO2 is created during the oxidation of deposited SO2 and NO2 to ...
Fowler, D., Cape, J.N., Leith, I.D.
openaire   +3 more sources

Self-powered, stretchable, fiber-based electronic-skin for actively detecting human motion and environmental atmosphere based on a triboelectrification/gas-sensing coupling effect

, 2017
A new self-powered, stretchable, fiber-based electronic-skin (e-skin) has been fabricated for actively detecting human motion and environmental atmosphere.
Yongming Fu, Haoxuan He, Yang Liu, Qiang Wang, Lili Xing, X. Xue   +5 more
semanticscholar   +1 more source

Tables of Atmospheric Profiles (English Units)

2012
Geopotential height (H), geometric height (Z), temperature (T), deviation from standard atmosphere temperature (t – Tstd), pressure (P), density (ρ), sound speed (Cs), coefficient of dynamic viscosity (μ), coefficient of kinematic viscosity (η), thermal conductivity (k)
Young P. Yee, Erik Y. Yee, Kueyson Y. Yee   +2 more
openaire   +2 more sources

ATMOSPHERIC WAVES IN THE NORTHWESTERN UNITED STATES

Journal of Meteorology, 1948
Abstract I. The flow of air in vertical planes across the Rocky Mountains is studied through the potential-temperature distribution. Sinusoidal configurations of the isentropes are observed which seem to correspond to theoretical patterns, i.e., wide separation of isentropic surfaces (low stability) and ascent overlying descent in the lee with a nodal ...
Seymour L. Hess, Harold Vagner
openaire   +2 more sources

Investigation of the NO Reduction Characteristics of Coal Char at Different Conversion Degrees under an NO Atmosphere

, 2017
The effect of preoxidative treatments on the reducing characteristics of ShenHua (SH) coal char and the evolution of surface nitrogen-containing complexes during the reducing process under different temperature conditions were investigated using ...
Zhuozhi Wang, Jie Xu, R. Sun, Yaying Zhao, Yupeng Li, Tamer M. Ismail   +5 more
semanticscholar   +1 more source

Use of the electrosurgical unit in a carbon dioxide atmosphere

Journal of Medical Engineering & Technology, 2016
The electrosurgical unit (ESU) utilizes an electrical discharge to cut and coagulate tissue and is often held above the surgical site, causing a spark to form. The voltage at which the spark is created, termed the breakdown voltage, is governed by the surrounding gaseous environment.
William C. Culp, Aris J. Maguddayao, Bradly A. Kimbrough, Jack L. Eidson, David V. Paolino, Sarah Luna   +5 more
openaire   +3 more sources

Atmospheric polybrominated diphenyl ethers (PBDEs) in the United Kingdom

Environmental Pollution, 2012
The occurrence of PBDEs has been studied in the atmosphere of four sites in the United Kingdom over a period of ten years. The concentrations have exhibited a sharp decrease after 2001-2003. This is evident in the urban sites of Manchester and London and at the semi-rural site of Hazelrigg. The average ΣPBDE half-lives for these three sites were 3.4, 2.
Birgul, Askin, Katsoyiannis, Athanasios, Gioia, Rosalinda, Crosse, John, Earnshaw, Mark, Ratola, Nuno, Jones, Kevin C., Sweetman, Andrew J.   +7 more
openaire   +4 more sources

A Sub-Atmospheric Solar Distillation Unit

International Journal of Solar Energy, 1987
Abstract This paper describes the design, manufacture and performance of a new type of solar distillation unit. The unit operates at a pressure below the atmospheric and utilizes a flat-plate collector. The designed unit is intended for an experimental purpose and operates on draw and fill or non-flow basis.
openaire   +2 more sources

The ward atmosphere of a psychiatric day care unit on the basis of occupational therapy: Characteristics and development during a 5-year period

, 1996
As part of a process-outcome study the development of the ward atmosphere over 5 years in a psychiatric day care unit on the basis of occupational therapy was investigated.
M. Eklund, L. Hansson
semanticscholar   +1 more source