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Space charge behavior in multi-layer oil-paper insulation under different DC voltages and temperatures
Get PDFOil-paper as a reliable insulation system is widely used in power transformers and cables. The dielectric properties of oil-paper insulation play an important role in the reliable operation of power equipment. However, the formation and dynamics of space charge can affect the performance of insulation material. In this paper, space charge in oil-paper insulation system has been investigated using the pulsed electroacoustic (PEA) technique. A series of measurements were carried out when the insulation system was subjected to different applied voltages at different temperatures. Charge behavior in the insulation system has been analyzed and the influence of temperature on charge dynamics was discussed. The test results show that homocharge injection takes place under all the test conditions, the applied dc voltage mainly effect the amount of space charge, while the temperature has greater influence on the distribution and mobility of space charge inside oil-paper sample
Otacilia jianfengling Fu, Zhang & Zhu 2010
No full text<i>Otacilia jianfengling</i> Fu, Zhang & Zhu, 2010 (Figs 52–58) <p> <i>Otacilia jianfengling</i> Fu, Zhang & Zhu, 2010: 641, f. 1A–H, 2A–E.</p> <p>Material examined. Holotype ♂, paratypes 1♂, 4♀, China, Hainan Province, Ledong County, Mt. Jianfengling (18.61°N, 108.93°E), 9 August 1980, Ming-Sheng Zhu leg. Other materials. China, Hainan Province, Ledong County, Mt. Jianfengling, Tianchi Lake (18°44′25″N, 108°51′44″E), 2♂, 3♀, 31 January 2015, Li-Na Fu leg.; Jianfengling National Forest Park (18°44′27″N, 108°51′36″E), 4♂, 4♀, 1 February 2015, Chi Jin leg.</p> <p>Description. See Fu, Zhang & Zhu (2010). Male (holotype) habitus shown in Fig. 52, male palp in Figs 54–56; female (paratype) habitus in Fig. 53, epigyne and vulva in Figs 57–58.</p> <p>Distribution. China (Hainan).</p>Published as part of <i>Fu, Li-Na, He, Jing-Chao & Zhang, Feng, 2015, Species of the genus Otacilia from Hainan Island, China (Araneae: Phrurolithidae), pp. 436-450 in Zoological Systematics 40 (4)</i> on page 448, DOI: 10.11865/zs.20150402, <a href="http://zenodo.org/record/4617522">http://zenodo.org/record/4617522</a>
Otacilia bawangling Fu, Zhang & Zhu 2010
No full textOtacilia bawangling Fu, Zhang & Zhu, 2010 (Figs 59–65) Otacilia bawangling Fu, Zhang & Zhu, 2010: 645, f. 3A–F. Material examined. Holotype ♂, China, Hainan Province, Changjiang County, Mt. Bawangling (19.3°N, 109.1°E), 7 November 2008, Ming-Sheng Zhu leg. Paratypes: 1♂, 4♀, same data as holotype, Guang-Xin Han, Sheng-Tao Guo and Jian-Yu Guo leg. © Zoological Systematics, 40(4): 436–450 © Zoological Systematics, 40(4): 436–450 Description. See Fu, Zhang & Zhu (2010). Male (holotype) habitus shown in Fig. 59, male palp in Figs 61–63; female (paratype) habitus in Fig. 60, epigyne and vulva in Figs 64–65. Distribution. China (Hainan). Funding This work was supported by the National Natural Science Foundation of China (31093430, 31372154), and in part by the Program of Ministry of Science and Technology of the Republic of China (2012 FY110803) to Prof. Feng Zhang. Acknowledgments We are grateful to Dr. Bao-Shi Zhang and Chi Jin for collecting the valuable specimens. We are particularly grateful to Dr. Xin-Ping Wang for reading and improving the manuscript.Published as part of Fu, Li-Na, He, Jing-Chao & Zhang, Feng, 2015, Species of the genus Otacilia from Hainan Island, China (Araneae: Phrurolithidae), pp. 436-450 in Zoological Systematics 40 (4) on pages 448-450, DOI: 10.11865/zs.20150402, http://zenodo.org/record/461752
Active Inhibition of a Distractor Word: The Distractor Precue Benefit in the Stroop Color-Naming Task
No full textSpace charge characteristics of multi-layer oil-paper insulation under different DC voltages
Get PDFIn this paper, space charge in oil-paper insulation system has been investigated using the pulsed electroacoustic (PEA) technique. A series of measurements were carried out when the insulation system was subjected to different applied voltages. Charge dynamics in the insulation system during the volts-on, volts-off and decay have been analyzed. It has been found that homocharge injection occurred both at the anode and the cathode. Positive charges are observed to accumulate in the layers, which indicate that the oil-paper layer interfaces act as a barrier for positive charges. The decay tests showed that after 30min, about a quarter of space charges remained in the sample, about 90% charges disappeared after 2 hours. Finally, total charge variation in these tests were analyzed
Three new species of Dinera Robineau-Desvoidy from China (Diptera: Tachinidae)
No full textZhang, Chun-Tian, Fu, Chao (2012): Three new species of Dinera Robineau-Desvoidy from China (Diptera: Tachinidae). Zootaxa 3275: 20-28, DOI: 10.5281/zenodo.21406
A new isobenzofuranone derivative from a marine Streptomyces sp.
No full textOne new isobenzofuranone derivative, 1,4-dimethoxy-3-(3R -hydroxy-3R -methyl-1-tetralone)-1(3H)-isobenzofuran (1), was isolated from the broth of marine Streptomyces sp. M268. The structure was elucidated by spectroscopy characteristics as well as comparison with the literature. Compound 1 exhibited cytotoxicities against human cancer cell, HL-60, A549, and BEL-7402. (C) 2012 Fu Chao Li. Published by Elsevier B.V, on behalf of Chinese Chemical Society. All rights reserved
Ling chao xuan za ju san zhong.
No full text望夫山--燕園門--妒婦津.靈潮軒雜劇三種 /程羲程曦著.Colophon title.Cheng Xi zhu.Wang fu shan--Yan yuan men--Du fu jin
Chao-Chow-Fu Bridge.
No full text"Chao-chow-fu is a walled city of considerable size and great commercial importance, as one may gather form its extensive warehouses, the busy traffic of its streets, the number of mature craft that throng the river on which it stands. The bridge over the River Han is perhaps one of the most remarkable in China, like old London Bridge, with its shops and places of business, the bridge at Chaochow affords space for one of the city markets. It will be seen that the houses are built of light materials, in a very primitive style, and are supported in such a way as to allow a maximum of market space on the causeway : while from a purely sanitary point of view, the houses projecting over the water offer many advantages. The mode of supporting these structures displays considerable ingenuity, the only brickwork employed rests upon the bridge, and by its weight gives stability to the double brackets that project to support the lighter portion of the houses...Although these bridge-dwellings possess few attractions apart from their breakneck style of architecture, it is pleasing to notice some evidence of refinement in the flowers that adorn the verandas, and that are to be found, indeed, in the humblest dwellings in China. If unexplained, it would be puzzling to find out the use of the two wooden frames which hang suspended from the bridge. They form a kind of moral or mythological drawbridge, which, when let down, is supposed to prevent the passages of boats and evil spirits beneath the bridge till darkness gives place to sunrise." (Thomson, 1873, v.II 19)
Fu xuan shan guan shi cao
No full text[v. 1]. 負暄山館紀事詩鈔 -- [v. 2]. 負暄山館游詩草.[黃棣華譔].Title from container.負暄山館紀事詩鈔 has caption title: 負暄山館六十紀事詩鈔; 負暄山館游詩草 has caption title: 負暄山館詩草.線裝, 一函.[Huang Dihua zhuan].Fu xuan shan guan ji shi shi chao has caption title: Fu xuan shan guan liu shi ji shi shi chao; Fu xuan shan guan you shi cao has caption title: Fu xuan shan guan shi cao.Xian zhuang, yi han.[v. 1]. Fu xuan shan guan ji shi shi chao -- [v. 2]. Fu xuan shan guan you shi cao
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