Results 21 to 30 of about 884,030 (287)
An apparatus for the production of high isotopic purity deuterium [PDF]
, 1974 An apparatus for the electrolytic preparation of high purity D2 is described. D2 with isotopic purity exceeding 99.98% (atomic percentage) was obtained with this apparatus by electrolysing D2O (99.8% isotopic purity) down to about 30% of its original ...
Kuppermann, A., Persky, A.
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An optically pumped atomic clock based on a continuous slow cesium beam
Frontiers in Physics, 2022 Herein, we report the scheme of an optically pumped atomic clock based on a cold cesium atomic beam source. We propose the laser system and physical mechanism of this atomic clock, wherein the atomic beam travels in an upper parabolic trajectory, thereby
Weibin Xie +10 more
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THICKNESS OF THE SURFACE LAYER OF ATOMIC-SMOOTH CRYSTALS
Физико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2019 A brief review of the physics of the surface layer of atomically smooth crystals is given. It already contains a fairly large number of practical applications in various fields of interdisciplinary areas.
V.M. Yurov
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LOCAL DISTORTIONS AND VOLUME CHANGES IN SEMICONDUCTORS - DONORS IN SILICON [PDF]
, 2002 Experiments giving impurity-induced lattice distortion can measure quite distinct quantities. In particular EXAFS (extended X-ray fine structure) measures nearest-neighbour distances, whereas both volume changes and recent spectroscopic data measure long-
PAJOT, B, SCHOBER, HR, STONEHAM, AM
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The Concept of a Critical Density of Energy in Models of Fracture of Solids
Успехи физики металлов, 2001 New energy conception of both solid’s fracture based on criteria of critical density of elastic energy, pс, in fracture nuclei and three scale levels of the process, viz.
Yu. Ya. Meshkov
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A new method for obtaining the star formation law in galaxies [PDF]
, 2010 We present a new observational method to evaluate the star formation law as formulated by Schmidt: the power-law expression assumed to relate the rate of star formation in a volume of space to the local total gas volume density.
Allen +16 more
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Relevance of structural defects to the mechanism of mechanical deformation in metallic glasses
Scientific Reports, 2023 It is known that deformation in disordered materials such as metallic glasses and supercooled liquids occurs via the cooperative rearrangement of atoms or constituent particles at dynamical heterogeneities, commonly regarded as point-like defects.
Charles K. C. Lieou, Takeshi Egami
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Atomic force microscopy analysis of cell volume regulation [PDF]
Physical Review E, 2008 Cells swell in response a hypoosmotic challenge. By converting osmotic pressure to hydrostatic pressure at the cell membrane via van't Hoff's law, and converting that to tension via Laplace's law one predicts that the cell membrane should stretch and become stiff. We tested this prediction using the atomic force microscopy.
Chiara, Spagnoli +3 more
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Sintering as a process of transport of activated volume [PDF]
Science of Sintering, 2002 Starting with the fact that sintering is the consequence of the process of transport of activated volume, it has been shown how the kinetics of the sintering process can be defined.
Nikolić Nataša S. +3 more
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Atomic scale volume and grain boundary diffusion elucidated by in situ STEM
Nature Communications, 2023 Diffusion is one of the most important phenomena studied in science ranging from physics to biology and, in abstract form, even in social sciences. In the field of materials science, diffusion in crystalline solids is of particular interest as it plays a
Peter Schweizer +6 more
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