Results 301 to 310 of about 883,463 (344)

Stability Phenomena in Chemical Reactors

Berichte der Bunsengesellschaft für physikalische Chemie, 1980
AbstractSome important types of non‐linear phenomena occuring in chemically reacting systems are explained by means of some single examples of chemical reactors. Multiple steady‐states exhibiting a distinct behavior of ignition and extinction are in the category of these phenomena.
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Transport Phenomena in Chemical Mechanical Polishing

Journal of The Electrochemical Society, 1999
Chemical mechanical polishing (CMP) is currently being used in the fabrication of integrated circuits and has been identified as an enabling technology for the semiconductor industry in its drive toward gigabit chips and subquartermicron feature sizes in the near future.
R. Shankar Subramanian, Suryadevara V. Babu, Lu Zhang   +2 more
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Chemical corrosion phenomena of roofing tiles

Ceramics International, 1997
Abstract The deterioration phenomena of roof tiles in model systems, formed from clay minerals and Ca-carbonate component, have been investigated. The systems after a specific thermal treatment were exposed to real atmospheric conditions, i.e. to attack of sulphurous acidic rains. The dual action, of SO 2 and atmospheric humidity, on roofing tiles,
B. Živanović, S. Radosavljević, R. Marinkovic-Neducin, Jonjaua Ranogajec   +3 more
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Investigation of corrosion phenomena on chemical microsensors

Electrochimica Acta, 2001
Compared to normally sized sensors, chemical microsensors are exposed to a higher corrosion risk. Corrosive damage can be caused by both the direct attack of the measuring medium on the chemically sensitive layer and the corrosion of the substrate materials or the electrical contacts due to absorption or penetration of moisture through the ...
Ulrich Guth, Wolfram Oelßner, Winfried Vonau   +2 more
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Transfer Phenomena and Chemical Kinetics

2010
Fundamental physical quantities such as mass, momentum and energy can be exchanged between portions of a system, or created during transformations through different processes such as convection, diffusion and chemical reactions. Convection is a type of mass exchange that is dependent upon the mean material velocity.
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Physical-Chemical Phenomena and Molecular Properties

1984
The importance of air-water exchange processes as determinants of the environmental behavior and effects of natural and anthropogenic chemicals is discussed. The various exchange mechanisms of diffusion (volatilization or absorption), deposition in association with particles both dry and wet, dissolution in rainfall, spray transfer and bubble transfer ...
Donald Mackay, Wan Ying Shiu
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Chemical Nature of Seismic Phenomena

2001
It has been shown that, in comparison with basalts, the products formed as a result of the processes of magma generation, earthquakes, volcanic activity, formation of lamproite and kimberlite tubes and others are enriched with light mantle elements.
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Gas-dynamic phenomena in chemical lasers

Acta Astronautica, 1974
Abstract Gas-dynamic effects, broadly interpreted to include gas-kinetic phenomena as well as macroscopic attributes, are largely responsible for governing the performance and behavior of chemical lasers. A number of topics may be identified as ones where gas dynamicists may make substantial contributions in this area.
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An Organic Framework for a Philosophical Appreciation of Chemical Phenomena

Annals of the New York Academy of Sciences, 2003
Abstract: The aim of this paper is to show how chemistry gives rise to philosophical reflection. Initially, some general remarks on philosophy and science are offered in the light of recent reductive controversy surrounding them both. An appeal is made for a broader and deeper outlook.
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Physico-Chemical Aspects of Intercalation Phenomena

1984
Four distinct kinds of intercalation phenomena are discussed involving (i) acceptor guests in graphitic hosts, (ii) inorganic ions and associated organic molecules in sheet silicates, (iii) multiply charged metallic clusters in zeolitic hosts, and (iv) the discovery of a new type of mixed oxide layered catalyst capable of releasing structural oxygen.
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