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Semi-confined terrain concurrently amplifies heat stress and ozone pollution in Northern China. [PDF]
iScienceMiao Y, Liang Q, Zhang G, Che H.
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Protecting larval fish at water intakes: hydraulic and biological evidence for the effectiveness of modern fish-protection screens. [PDF]
Biol OpenAshley Boys C +5 more
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On air entrainment in coatings
Journal of Colloid and Interface Science, 2003A series of experiments that clarify how air bubbles become entrained into coatings are described. The contact line dynamics at the air-liquid interface surrounding a fiber is characterized for a typical coating die operating under atmospheric and pressurized conditions.
P G Simpkins
exaly +3 more sources
Study of Air Entrained Concrete with Various Types of Air Entraining Admixtures
Materials Science Forum, 2022In current concrete practice, several types of air entraining admixtures are used. These admixtures aim to improve the durability of concrete in aggressive exposure conditions caused by negative temperatures in combination with salts. The current article attempts to describe the types actually used, namely, synthetic tensides and natural resins and to ...
Ondřej Pikna +2 more
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Air Entrainment in Turbulent Liquids
Science, 1961An experimental technique has been developed for measuring the concentration and distribution of air entrained by turbulence in an agitated liquid. The air content was related to the viscosity, surface tension, and turbulence of the liquid by dimensional analysis.
J E, Flack, J I, Kveisengen, J H, Nath
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Journal of Hydraulic Research, 1996
This paper describes the results of a laboratory study of air entrainment below drops for a range of Drop numbers from 0.0007 to 0.0046. Characteristics of the plunging flow that occurs when the tailwaler depth yt is in the range of yt* . to h were studied where yt* . is the value of yt when a hydraulic jump is formed at the section where Ihe deflected
N. Rajaratnam, A.Y.P. Kwan
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This paper describes the results of a laboratory study of air entrainment below drops for a range of Drop numbers from 0.0007 to 0.0046. Characteristics of the plunging flow that occurs when the tailwaler depth yt is in the range of yt* . to h were studied where yt* . is the value of yt when a hydraulic jump is formed at the section where Ihe deflected
N. Rajaratnam, A.Y.P. Kwan
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Air entrainment on a moving continuous web
Chemical Engineering Science, 2004Abstract The air boundary layer on a moving continuous web was experimentally investigated in a laboratory coating equipment. The boundary layer thickness was obtained by smoke visualization and measured by image analysis in the range 2.4×10 4 Re 5 . According to the web speed, three laminar flow mechanisms were observed, for which the air boundary
A. Arzate, P.A. Tanguy
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1990
While the early history of the use of air entraining admixtures is ambiguous, the author has heard, but not read, that the early Romans and Greeks added them to their pozzolanic mixes to increase their workability. Probably blood or animal fat was used for this purpose. Before proceeding further with the evolution of this class of admixtures, it should
openaire +1 more source
While the early history of the use of air entraining admixtures is ambiguous, the author has heard, but not read, that the early Romans and Greeks added them to their pozzolanic mixes to increase their workability. Probably blood or animal fat was used for this purpose. Before proceeding further with the evolution of this class of admixtures, it should
openaire +1 more source