Results 301 to 310 of about 22,061,458 (356)

Twist as a Probe for Phase Structure

Physica Scripta, 1981
Summary: We advocate the use of twist as an efficient tool, in computer simulated lattice gauge theories, for quick scan of phase diagrams and for determining phase structure. Physically, a twist is an excitation induced by a specific dislocation (`twisted boundary condition') in the system.
Groeneveld, J., Jurkiewicz, J., Korthals-Altes, C. P.   +2 more
openaire   +1 more source

Structures and Phase Transitions in Pertechnetates

Inorganic Chemistry, 2019
The temperature dependence of the structures of four pertechnetates (ATcO4 A = Ag, Tl, Rb, Cs) from 90 K to their melting points is described. Synchrotron X-ray diffraction measurements show that RbTcO4 undergoes a I41/a to I41/amd transition near 530 K that is associated with a change in the orientation of the TcO4- tetrahedra about the scheelite b ...
Brendan J. Kennedy, Sean Injac, Gordon J. Thorogood, Helen E. A. Brand, Frederic Poineau   +4 more
openaire   +2 more sources

The temporal structure of S phase

Cell, 1975
DNA synthesis in the S phase of V79 and CHO Chinese hamster cells was examined in detail using an automated system for selection and subculturing of mitotic cells and four different assays for DNA synthesis. Flow microfluorometric (FMF) analysis showed that the selected populations were highly synchronous with few noncycling cells. In CHO cells changes
Robert R. Klevecz, Beverly A. Keniston, Larry L. Deaven   +2 more
openaire   +2 more sources

Tough Polyurethane Hydrogels with a Multiple Hydrogen‐Bond Interlocked Bicontinuous Phase Structure Prepared by In Situ Water‐Induced Microphase Separation

Advances in Materials
Hydrogels with mechanical performances similar to load‐bearing tissues are in demand for in vivo applications. In this work, inspired by the self‐assembly behavior of amphiphilic polymers, polyurethane‐based tough hydrogels with a multiple hydrogen‐bond ...
Ruyue Wang, Ting Xu, Yuxuan Yang, Mengyuan Zhang, Ruilin Xie, Yilong Cheng, Yanfeng Zhang   +6 more
semanticscholar   +1 more source

Phase structure of strange matter

Physical Review D, 1993
We present a detailed discussion of the phase structure of hadronic matter with finite strangeness content and discuss the thermodynamic conditions for the formation of metastable strange quark droplets ( strangelets'') in relativistic nuclear collisions.
, Lee, , Heinz
openaire   +2 more sources

The Gas-Phase Structure of Alanine

Journal of the American Chemical Society, 2004
The jet-cooled rotational spectrum of neutral alanine has been studied using laser-ablation molecular-beam Fourier transform microwave spectroscopy (LA-MB-FTMW). The spectra of the two most stable forms were observed in the frequency range 6-18 GHz for the parent, (15)N alanine, three single (13)C species, and four single D species.
Susana, Blanco, Alberto, Lesarri, Juan C, López, José L, Alonso   +3 more
openaire   +2 more sources

Composition and phase structure dependence of mechanical and magnetic properties for AlCoCuFeNi high entropy alloys

Journal of Materials Science & Technology, 2019
In this study, the effects of composition and phase constitution on the mechanical properties and magnetic performance of AlCoCuFeNix (x = 0.5, 0.8, 1.0, 1.5, 2.0, 3.0 in molar ratio) high entropy alloys (HEAs) were investigated. The results show that Ni
L. Cong, Peng Wenyi, C. S. Jiang, Hong-min Guo, Jun Tao, Xiaohua Deng, Zhaoxia Chen   +6 more
semanticscholar   +1 more source

The role of conductivity and phase structure in enhancing catalytic activity of CoSe for hydrogen evolution reaction

Electrochimica Acta, 2019
We report for the first time that CoSe with tetragonal metallic phase exhibits high electrocatalytic activity for hydrogen evolution reaction (HER) in acid solution.
Zhiping Lin, Chengwei Wang, Zongpeng Wang, Qingyun Liu, C. Le, Bo-Ru Lin, Shougang Chen   +6 more
semanticscholar   +1 more source

The effect of phase structures on spatial phase discrimination

Vision Research, 1984
This study was concerned with the discrimination of multifrequency gratings which differed only in the relative phase of one sinewave component (the test frequency) relative to the other components (the background frequencies). The dependent variable was the contrast of the test frequency required to discriminate between the two gratings.
openaire   +2 more sources

Phase-space structure of a thermoreceptor

Physical Review E, 2000
We analyze the phase-space structure of a model for thermoreceptors in fish and mammals. As a function of the temperature we identify a period doubling scenario at low temperatures, a regime where an unstable stationary fixed point collides with the attractor and blocks the thermoreceptor, and a transition from period n+1 to period n as the temperature
W, Braun, B, Eckhardt, H A, Braun, M, Huber   +3 more
openaire   +2 more sources