Results 211 to 220 of about 65,573 (269)
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Annual Review of Genetics, 2006
Active and silenced chromatin domains are often in close juxtaposition to one another, and enhancer and silencer elements operate over large distances to regulate the genes in these domains. The lack of promiscuity in the function of these elements suggests that active mechanisms exist to restrict their activity.
Lourdes, Valenzuela +1 more
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Active and silenced chromatin domains are often in close juxtaposition to one another, and enhancer and silencer elements operate over large distances to regulate the genes in these domains. The lack of promiscuity in the function of these elements suggests that active mechanisms exist to restrict their activity.
Lourdes, Valenzuela +1 more
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IEEE Transactions on Electrical Insulation, 1981
The aim of this paper is to review our present knowledge of the physics of electrical coronas and their interaction with surfaces, with some emphasis on phenomena which seem of importance for high voltage insulation. We will concentrate on fundamental and general subjects, in order to limit the scope of the paper and to make it serve as an introduction
M. Goldman, R. S. Sigmond
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The aim of this paper is to review our present knowledge of the physics of electrical coronas and their interaction with surfaces, with some emphasis on phenomena which seem of importance for high voltage insulation. We will concentrate on fundamental and general subjects, in order to limit the scope of the paper and to make it serve as an introduction
M. Goldman, R. S. Sigmond
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Transactions of the American Institute of Electrical Engineers, 1933
The general scheme of coordination is discussed. Average circuit insulation used in 1930 is shown. The relation that switching surges and arcing ground overvoltages bear on coordination is discussed giving the number and magnitude of such waves found in service.
V. M. Montsinger +2 more
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The general scheme of coordination is discussed. Average circuit insulation used in 1930 is shown. The relation that switching surges and arcing ground overvoltages bear on coordination is discussed giving the number and magnitude of such waves found in service.
V. M. Montsinger +2 more
openaire +1 more source
Proceedings of the American Institute of Electrical Engineers, 1917
This paper gives a resume of the insulator situation as it exists at the present time and shows the gradual increase in requirements that have been held essential to a successful insulator. A statement of the apparent causes of the very rapid deterioration of insulators, even when stored and subject to no electric stress is given, and the conditions ...
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This paper gives a resume of the insulator situation as it exists at the present time and shows the gradual increase in requirements that have been held essential to a successful insulator. A statement of the apparent causes of the very rapid deterioration of insulators, even when stored and subject to no electric stress is given, and the conditions ...
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Electronic charge exchange at insulator-insulator interface in insulating composites
Proceedings of 1994 4th International Conference on Properties and Applications of Dielectric Materials (ICPADM), 2002The charge exchange at the insulator-insulator interface in insulating composites is affected by the direction of the carrier transport and carrier species. In this paper the charge exchange process at the PS-PMMA interface was discussed on the basis of asymmetric photoconduction and contact charging.
A. Kawamoto +4 more
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Electrical Engineering, 1934
Improvements and strengths of suspension insulators which have been attained since the publication in 1931 of a paper by the present author are outlined in this paper. Details of the improvements which have been made since that time are discussed herein, and considerable data on the strength of suspension insulators of different types are given.
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Improvements and strengths of suspension insulators which have been attained since the publication in 1931 of a paper by the present author are outlined in this paper. Details of the improvements which have been made since that time are discussed herein, and considerable data on the strength of suspension insulators of different types are given.
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Journal of the American Society for Naval Engineers, 1940
This article, the third in a series of four, presents a mass of data which should be of intense interest to those technically interested in electrical insulation.Because of the possible demand for reprint copies of this article, it is suggested that orders for copies be placed without delay.
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This article, the third in a series of four, presents a mass of data which should be of intense interest to those technically interested in electrical insulation.Because of the possible demand for reprint copies of this article, it is suggested that orders for copies be placed without delay.
openaire +1 more source
Electrical Engineering, 1934
A series of tests on suspension insulators For power transmission lines is described this paper, and results are given which should be of interest to design engineers. The tests made included long-time Fatigue tests, the distribution of voltage over the insulator string, and the flashover voltage when some of the units are electrically defective.
openaire +1 more source
A series of tests on suspension insulators For power transmission lines is described this paper, and results are given which should be of interest to design engineers. The tests made included long-time Fatigue tests, the distribution of voltage over the insulator string, and the flashover voltage when some of the units are electrically defective.
openaire +1 more source