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231 results on '"Zhou Yigang"'

1. Research and Analysis Based on Electricity Spot Market Construction in Northern China

Author

Wang Sen, Zhao Shuai, Zhou Liansheng, Gan Zhiyong, Zhang Changzhi, Zhao Yue, Ai Dengxin, and Zhou Yigang

Subjects
Environmental sciences, GE1-350
Abstract

Successive development of China’s power spot market has subjected the operation and dispatching mode of the existing power system to an increasingly greater influence imposed by the electricity market mechanism. In China’s northern provinces requiring winter heating, it is a huge challenge to the trading mechanism of power spot market to simultaneously guarantee the safe operation of power system and the heating mode of heating unit. To address this issue, this paper analyses the operation conditions and problems of power spot market during winter heating in northern China. Based on the analysis of the power spot market in a northern city, This paper analyzes some crucial problems in the construction of spot market and sums up policy advice for the further construction of spot market adapted to direct electricity purchase by large consumers in northern China.

Published
2020
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7. Low-Complexity Signal Detection Based on SOR Method Exploring an Efficient Relaxation Range for Massive MIMO Systems

Author

Zhou, Yigang, Wang, Lin, Zheng, Liming, Mao, Yu, Angrisani, Leopoldo, Series Editor, Arteaga, Marco, Series Editor, Panigrahi, Bijaya Ketan, Series Editor, Chakraborty, Samarjit, Series Editor, Chen, Jiming, Series Editor, Chen, Shanben, Series Editor, Chen, Tan Kay, Series Editor, Dillmann, Ruediger, Series Editor, Duan, Haibin, Series Editor, Ferrari, Gianluigi, Series Editor, Ferre, Manuel, Series Editor, Hirche, Sandra, Series Editor, Jabbari, Faryar, Series Editor, Jia, Limin, Series Editor, Kacprzyk, Janusz, Series Editor, Khamis, Alaa, Series Editor, Kroeger, Torsten, Series Editor, Liang, Qilian, Series Editor, Ming, Tan Cher, Series Editor, Minker, Wolfgang, Series Editor, Misra, Pradeep, Series Editor, Möller, Sebastian, Series Editor, Mukhopadhyay, Subhas, Series Editor, Ning, Cun-Zheng, Series Editor, Nishida, Toyoaki, Series Editor, Pascucci, Federica, Series Editor, Qin, Yong, Series Editor, Seng, Gan Woon, Series Editor, Veiga, Germano, Series Editor, Wu, Haitao, Series Editor, Zhang, Junjie James, Series Editor, Mu, Jiasong, editor, Jia, Min, editor, Wang, Wei, editor, Feng, Xuhong, editor, and Zhang, Baoju, editor

Published
2019
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23. Detecting Hotspots in Insulin-Like Growth Factors 1 Research through MetaMap and Data Mining Technologies

Author

Yin, Shumei, Li, Chunying, Zhou, Yigang, Huang, Jun, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Huang, Zhisheng, editor, Liu, Chengfei, editor, He, Jing, editor, and Huang, Guangyan, editor

Published
2014
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28. Towards Ontology-Based Knowledge Visualization

Author

Zhou, Yigang, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Nierstrasz, Oscar, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Sudan, Madhu, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Vardi, Moshe Y., Series editor, Weikum, Gerhard, Series editor, Xing, Chunxiao, editor, Crestani, Fabio, editor, and Rauber, Andreas, editor

Published
2011
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47. Coarse-grained Lacustrine Slope Apron Deposits in Shaobo Area, Gaoyou Sag, Southern China

Author

Li Cunlei, Chen Panpan, Yan Yunbiao, and Zhou Yigang

Subjects
Traction (geology), Bedding, Terrigenous sediment, Clastic rock, Facies, Trough (geology), Geochemistry, Sedimentary rock, Submarine pipeline, Geology
Abstract

The Dainan formation reservoirs in Shaobo area, Gaoyou sag, Southern China, sedimented mass conglomerates dominated by lacustrine slope apron system which fended by multiple flood channels with massive terrigenous clasts. In the early days, offshore fan-shaped sediments in the Shaobo area of the Gaoyou Sag were considered to be the main sedimentary system. However, a new lacustrine sedimentary model is presented in this paper. By careful core description and interpretation, four facies unions are recognized: (1) Facies union 1: Downslope clastic pathways that composed of massive conglomerates up to 6-25m thick, alternating with brown-dark gray mudstone and the etching structures can be often observed; (2) Facies union 2: Debris-flow Lobe is composed of massive conglomarates, matrix-supported to clast-supported polymictic conglomerates up to 10-50m thick; (3) Facies union 3: Underwater distributary channel is composed of trough cross-stratified sandstone, horizontally stratified sandstone and ripple cross-stratified fine to medium-grained sandstone, up to 5-20m thick; (4) Facies union 4: mudstone is dominates by thick grey black mudstone interbeding thin sandstone, the etching features are rare and bedding is typically parallel. In our study area, the traction current deposits constitute the producing petroleum reservoirs, and the conglomerates deposits are poor reservoirs. The sedimentary model may be applicable to other fault depression for predicting reservoir distribution.

Published
2020

48. Fine Single Sand Body Characterization of Hulangmao Chang 6 Reservoir in Jing'an Oilfield

Author

Yu Bo, Tang Shiqi, Zhou Yigang, Zhang Jinxin, Yan Yunbiao, Pang Yuxin, and Li Cunlei

Subjects
Sedimentary depositional environment, geography, geography.geographical_feature_category, Lithology, Sequence stratigraphy, Sedimentary rock, Stage (hydrology), Petrology, Porosity, Petroleum reservoir, Channel (geography), Geology
Abstract

The Chang 6 reservoir in Hulangmao area is a lithologic reservoir controlled by Zhidan Jingbian delta depositional system in Northern Shanxi Province. The oil reservoir has entered the middle-high-water-cut stage. The reservoir is characterized by low porosity and low permeability, with strong heterogeneity and great development difficulty. Therefore, it is necessary to further study the distribution of remaining oil through fine single sand body division and correlation，so as to improve the level of the reservoir development. Based on the theory of high-resolution sequence stratigraphy, according to the characteristics of mudstone marker bed and logging combinations, the sedimentary cycles are studied by using the techniques of maximum entropy spectrum and wavelet transform, and the cycle characteristics of different levels are clarified. Chang 6 member is divided into 3 fourth-level cycles, 6 fifth-level cycles (small levels), 13 sixth-order cycles (single level), and 21 seventh-order cycles (single sand body). Based on the stratigraphic correlation analysis model of sand body equal thickness, channel down-cutting, lateral phase transformation and splitting of superimposed sand body, and combined with the core and logging characteristics of the target area, the correlation framework of single sand layer in the whole area is established.

Published
2020

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