Results 291 to 300 of about 1,612,001 (340)

Physics of collective cell migration

European Biophysics Journal, 2023
Movement of cell clusters along extracellular matrices (ECM) during tissue development, wound healing, and early stage of cancer invasion involve various inter-connected migration modes such as: (1) cell movement within clusters, (2) cluster extension ...
I. Pajic-Lijakovic, M. Milivojevic
semanticscholar   +1 more source

Change of genetic expression by physical compression forces

Cell Biology International Reports, 1990
Despite intense investigation of transmembrane signalling mediated by lymphocyte surface molecules, the subcellular mechanisms responsible for these phenomena remain poorly understood (Kishimoto, T. et al., 1983). In the present study, an answer for the mechanism is demonstrated by using human B blastoid cell line (CESS) which has IgG and Interleukin 6
Y. Miki, S. Miki
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Physical Analysis of the Compression of Filament Assemblies

Textile Research Journal, 2002
This paper presents experimental results on filament assembly compression showing the influence of porosity on the compacting pressure necessary for attaining the desired packing density. At the same time, a physical description of the compacting phenomenon is given.
Luis Virto, Montse Carbonell, Arun Naik
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Advancing test compression to the physical dimension

2017 IEEE International Test Conference (ITC), 2017
Test Compression ratios are currently stalled at 100–200X. A new 2-dimensional physically-aware sequential Compressor-Decompressor design addresses the severe wiring congestion as well as the test coverage droop and pattern spike at the highest compression ratios. Results on some commonly used industrial designs shows a 2X reduction in routing overhead
Paul Alexander Cunningham, Louis Christopher Milano, Christos Papameletis, Steev Wilcox, Dale Meehl, David George Scott, Vivek Chickermane, Krishna Chakravadhanula, Brian Edward Foutz   +8 more
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Physical characteristics of compressed cotton stalks

Biosystems Engineering, 2008
A study was carried out to evaluate the physical characteristics of chopped cotton stalks and to establish correlations of physical characteristics with moisture content and compression pressure. Chopped cotton stalks having a moisture content varying from 8.5% to 21.45% (w.b.) were densified into square blocks (80 mm by 80 mm) at compression pressures
Adarsh Kumar, Amar Singh, S.K. Jha
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The Physics of Tablet Compression. I. A Preliminary Report†

Journal of the American Pharmaceutical Association (Scientific ed.), 1952
A preliminary report surveying a series of basic studies on compressed tablets is presented. For procurement of data toward elucidation of tablet structure and behavior, tentative methods for determining (a)tablet density, (b) bulk density of the mixed ingredients, (c) porosity and pore size of tablets, and (d) the compressional force and compressional
S.J. Tucker, Takeru Higuchi, L.W. Busse, R.D. Arnold   +3 more
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Physics of Tablet Compression XIV. Lateral Die Wall Pressure During and After Compression

Journal of Pharmaceutical Sciences, 1965
Measurements of pressure exerted by various substances on the die wall during and after compression of tablets have shown that the information derived can be related directly to the ease of formation and ejection of these tablets. The side wall pressure has been found to decay at a measurable rate after the normal compressional force is abruptly ...
Stuart P. Eriksen, Tsugio Shimamoto, Takeru Higuchi, Takatsuka Yashiki   +3 more
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Determination of compressibility. An experiment for physical chemistry

Journal of Chemical Education, 1972
This experiment is effective in demonstrating the deviations from ideality that become increasingly important as the gas density increases.
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High-energy pulse self-compression and ultraviolet generation through soliton dynamics in hollow capillary fibres

Nature Photonics, 2018
Optical soliton dynamics can cause extreme alteration of the temporal and spectral shape of a propagating light pulse. This occurs at up to kilowatt peak powers in glass-core optical fibres and at the gigawatt level in gas-filled microstructured hollow ...
J. Travers, T. Grigorova, C. Brahms, F. Belli   +3 more
semanticscholar   +1 more source

Applied physics of compressible and incompressible fluids [PDF]

, 1998
Intensive care monitoring and therapy is nowadays usually associated with measurement, control and monitoring techniques using complex medical equipment. Fundamental knowledge of the measurement units, measurement techniques and their physiological relationships forms the basis for a correct interpretation of the biological signal.
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