Results 111 to 120 of about 43,895 (165)

Surface Chemical Phenomena in Lubrication

The Journal of the Society of Chemical Industry, Japan, 1955
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Chemical wave refraction phenomena

Physical Review E, 1996
Motivated by recent work of Steinbock, T\'oth, and Showalter [Science 267, 868 (1995)] examining chemical wave propagation within membrane labyrinths soaked with Beluosov-Zhabotinsky reagent, we have investigated refraction phenomena using similar tools, with an eye to verify the general applicability of Snell's law for such nonlinear waves, as well as
, Hwang, , Halpin-Healy
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Magnetic field effects in chemical kinetics and related phenomena

Chemical Reviews, 1989
Although the interest in experimental evidence of magnetic field effects (MFEs) on the kinetics of chemical reactions, which might be characterized by the term magnetokinetics , has a long tradition, an impressive evolution of the field took place only ...
Ulrich E Steiner
exaly   +2 more sources

Chemomechanics: chemical kinetics for multiscale phenomena

Chemical Society Reviews, 2011
The purpose of this critical review is to introduce the reader to an increasingly important class of phenomena: enormous changes in rates of simple chemical reactions within macromolecules as they are stretched by interactions with the environment. In these chemomechanical, or mechanochemical, phenomena the effect of the macromolecular environment can ...
Zhen Huang, Roman Boulatov
exaly   +3 more sources

Chemical Instabilities as Critical Phenomena

Physical Review A, 1977
Much attention has been given in recent years to universal features characterizing instabilities and transition phenomena in equilibrium and non-equilibrium systems [1]. Laser transitions [2], hydrodynamical instabilities [3], cooperative phenomena in data processing [4] and various examples of chemical and biochemical instabilities [5] are only a few ...
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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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Visualizing Chemical Phenomena in Microdroplets

Journal of Chemical Education, 2010
Phenomena that occur in microdroplets are described to the undergraduate chemistry community. Droplets having a diameter in the micrometer range can have unique and interesting properties, which arise because of their small size and, especially, their high surface area-to-volume ratio. Students are generally unfamiliar with the characteristics of small
Sunghee Lee, Joseph Wiener
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Transport Phenomena in Chemical Flooding

SPE Advanced Technology Series, 1996
Abstract A chemical flood simulator of a three-component, two phase system has been extended to include concentration dependent functions: phase behavior, relative permeabilities, capillary pressure, interfacial tension, residual saturations, phase viscosities, wettability, etc..
P. C. Porcelli, M. S. Bidner
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LEARNERS’ EXPLANATIONS FOR CHEMICAL PHENOMENA

Chem. Educ. Res. Pract., 2000
There is a growing body of research which explores the nature of explanation in science classrooms. The vast majority of this work highlights the teacher’s role as explainer of scientific phenomena, while little has explored the quality of learners’ own explanations.
Keith S. TABER, Mike WATTS
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Physical phenomena‐‐chemical phenomena: do pupils make the distinction?

International Journal of Science Education, 1989
Abstract This research explored: (a) the representations and conceptions of some Greek pupils of the concept of chemical reaction, and (6) the ways in which these pupils categorized a set of physical and chemical transformations of matter. The results show that pupils group physical and chemical phenomena in different ways, using different criteria ...
Heleni Stavridou*, Christina Solomonidou‡   +1 more
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