Results 241 to 250 of about 1,107,400 (287)

Quantized Hall insulator: Transverse and longitudinal transport

Physical Review B, 1997
We model the insulator neighboring the 1/k quantum Hall phase by a random network of puddles of filling fraction 1/k . The puddles are coupled by weak tunnel barriers. Using Kirchoff’s laws we prove that the macroscopic Hall resistivity is quantized at kh/e and independent of magnetic field and current bias, in agreement with recent experimental ...
Efrat Shimshoni, Assa Auerbach
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Longitudinal analysis of chronic occupational exposure in insulators

Occupational and environmental health, 2019
Cardiovascular and respiratory diseases are among the global leading causes of mortality. Insulators are at risk of these illnesses because of chronic exposure to asbestos and silica. In this study, a longitudinal analysis was carried out to determine the effect of asbestos exposure on the lung and cardiac health of insulators. Unionized insulators (n
Samineh Kamravaei, Kawtar Idrissi Machichi, Noushin Miandashti, Jennifer Spring, Linda Henderson, Fadi Khadour, Lyle Melenka, Muhammad Naseem, Paige Lacy   +8 more
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A principle and method of the protection of transformer longitudinal insulation

Proceedings of 2001 International Symposium on Electrical Insulating Materials (ISEIM 2001). 2001 Asian Conference on Electrical Insulating Diagnosis (ACEID 2001). 33rd Symposium on Electrical and Electronic Insulating Materials and Applications in System, 2002
In this paper, the inner protection effect of MOVs parallel to multi-section of continuous windings is studied by testing. A principle and method of the protection of transformer longitudinal insulation are also presented. This paper introduces the lifetime test procedure of MOV in high temperature oil.
null Wen Yuanfang, null Yan Xianglian, null Liu Chun, null Liang Yuelong, null Xie Yanying   +4 more
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Observation of longitudinal spin-Seebeck effect in magnetic insulators

Applied Physics Letters, 2010
We propose a longitudinal spin-Seebeck effect (SSE), in which a magnon-induced spin current is injected parallel to a temperature gradient from a ferromagnet into an attached paramagnetic metal. The longitudinal SSE is measured in a simple and versatile system composed of a ferrimagnetic insulator Y3Fe5O12 slab and a Pt film by means of the inverse ...
Ken-ichi Uchida, Hiroto Adachi, Takeru Ota, Hiroyasu Nakayama, Sadamichi Maekawa, Eiji Saitoh   +5 more
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The role of long-wave longitudinal phonons in kinetics of insulators

Low Temperature Physics, 1997
It is shown that long-wave longitudinal phonons considerably affect heat transfer in most of existing crystals in spite of symmetry degeneracy of transverse vibrational branches. This is because of close values of phase velocity of transverse phonon modes in these crystals. Such effects are most pronounced in phonon hydrodynamics and in the propagation
R. N. Gurzhi, A. V. Yanovskiı̆
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Longitudinal one-dimensional mechanical topological insulator

Physica Scripta
Abstract We present a study of a longitudinal one-dimensional mechanical topological insulator based on a slinky spring in the Su-Schrieffer-Heeger (SSH) configuration. The system demonstrates key characteristics of topological insulators, including the existence of edge states in the bandgap, exponential decay of amplitude, and a ...
Madeleine Hoag Carhart, Parker Fairfield, Juan M Merlo, Luke Thatcher, Lázaro Merlo-Ramírez   +4 more
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Aging extent assessment of insulation based on velocity measurement of ultrasonic longitudinal wave propagated in stator insulation

Annual Report Conference on Electrical Insulation and Dielectric Phenomena, 2003
A new diagnostic method, namely, velocity measurement of the ultrasonic longitudinal waves launched into and propagated in stator insulation, is put forward to assess the aging extent of stator insulation in this paper. The ultrasonic velocity was measured statistically as the minimal velocity (Vi,,) and the average velocity (V/sub av/) on stator bars ...
null Yanpeng Hao, null Zhidong Jia, null Zheng Zeng, null Guoli Wang, null Hengkun Xie   +4 more
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Empirical relation between longitudinal and transverse transport in insulatingn-CdSe

Physical Review B, 1994
Based on data for insulating [ital n]-type CdSe at temperatures between 0.05 and 4.2 K and magnetic fields above 3 T (up to the highest measured field of 9 T), we demonstrate an empirical relation between the longitudinal and transverse conductivities given by [sigma][sub [ital x][ital y]]=[ital scrAH][sigma][sub [ital x][ital x]][sup 3/2].
, Zhang, , Dai, , Kam, , Sarachik
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Measurement of Residual Stress in GIS Basin Insulators by Using Ultrasonic Longitudinal Critically Refracted Wave Method

2021 International Conference on Electrical Materials and Power Equipment (ICEMPE), 2021
The residual stress could be produced during the curing process of GIS basin insulators. The coupling of residual stress and external stress may cause stress concentration, which threaten the safe operation of the insulators. In this paper, the method for detecting residual stress of a 252kV GIS basin insulator by critical refraction longitudinal wave (
Xu Yang, Changhong Zhang, Weiguo Li, Chao Gao, Fusheng Zhou, Ruodong Huang, Guoli Wang, Xuezhi Liang   +7 more
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Attenuation of Longitudinal Ultrasonic Waves in Insulators at Room Temperature

The Journal of the Acoustical Society of America, 1968
It is possible to distinguish between two intrinsic loss mechanisms for longitudinal ultrasonic waves propagating in dielectric single crystals, viz., the thermoelastic loss mechanism and the Akhiezer mechanism. In the normal derivation of the theoretical expressions of the attenuation coefficients for these mechanisms, the former involves the thermal ...
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