Results 261 to 270 of about 153,291 (303)

Chemically reactive thin diffusion barriers

Journal of Membrane Science, 1983
Abstract We assess the degree of protection against diffusion of an environmental pollutant afforded by a thin, chemically reactive surface film on a slab or membrane. For the case of an irreversible quasi-unimolecular reaction in such a surface film we derive a modified radiation boundary condition which adequately describes the presence of such a ...
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Chemical thinning of sugar beet

Journal of Agricultural Engineering Research, 1969
Abstract Preliminary investigations indicated that it might be advantageous to eliminate the surphus seedling in a braird by using a contact herbicide as the thinning medium. A technique involving the use of reciprocating dribble bars to apply a viscous solution of herbicide was developed and evaluated as an alternative to conventional mechanical ...
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Mesoporous thin films for chemical sensors

COMMAD 2000 Proceedings. Conference on Optoelectronic and Microelectronic Materials and Devices, 2005
Silica mesoporous thin-films were prepared using cetyltrimethylammonium bromide surfactant as a template. The films were deposited by dip-coating on Si and alumina substrates and calcined at 250 and 450/spl deg/C. The films were characterized by X-ray diffraction (XRD) analysis, Fourier transform infrared (FTIR) spectroscopy and Rutherford ...
Innocenzi Plinio, Bearzotti Andrea, Traversa Enrico   +2 more
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Thin apples chemically

2018
Apple trees will often set more fruit than they can support. The use of chemicals to thin apples is becoming a routine commercial practice.
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An Apparatus for Chemical Jet-Thinning

Proceedings, annual meeting, Electron Microscopy Society of America, 1977
A simple, inexpensive and safe apparatus has been constructed to chemically jet-thin silicon samples for transmission electron microscopy. The thinning apparatus, constructed from chemically resistant materials, is designed to quickly and reproducibly thin samples without subjecting the operator to hazards from highly corrosive polishing solutions ...
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Thin and Thick Film Chemical Sensors

2023
Chemical sensors with solid ion-conductors or mixed ion- and electron-conductors have been prepared by the thin film ICB (lon Cluster Beam Evaporation) and by the thick film screen printing methods. By the ICB method, the sensor material TiO, was deposited on sapphire and quartz substrates.
Chu, W. F., Fischer, D.
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CHEMICAL THINNING OF PEACHES

Acta Horticulturae, 1985
S. Stan, N. Burloi, Pr. Ionescu, V. Cociu, N. Patru, E. Topor, T. Panea   +6 more
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CHEMICAL THINNING IN NASHI

Acta Horticulturae, 2002
S.A. Bound, null Mitchell
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Chemical processing of thin chromium films

Thin Solid Films, 1991
Abstract Conditions for the chemical dissolution of thin chromium films in mildly acting media were investigated. Electrode potentials and static polarization curves of chromium-plated electrodes in solutions of varying hydrogen ion activity were measured and average dissolution potentials determined.
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Fast chemical thinning of germanium wafers for optoelectronic applications

Applied Surface Science, 2022
Ivan Garcia, Ignacio Rey-Stolle
exaly