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835 results on '"Li, Xiaoshan"'

156. Effects of Pore Water Content on Stress Sensitivity of Tight Sandstone Oil Reservoirs: A Study of the Mahu Block (Xinjiang Province, China).

Author

Li, Xiaoshan, Gu, Kaifang, Xu, Wenxiu, Song, Junqiang, Pan, Hong, Dong, Yan, Yang, Xu, You, Haoyu, Wang, Li, Fu, Zheng, Liu, Lingqi, and Wang, Ke

Subjects
PORE water, PETROLEUM reservoirs, SANDSTONE, PROVINCES, PETROLEUM industry
Abstract

Traditional stress sensitivity experiments are typically conducted under dry conditions, without considering the reservoir's water content. In reality, the presence of water within pores significantly influences the extent of stress sensitivity damage in tight sandstone oil formations, subsequently affecting the determination of stress sensitivity coefficients during experimentation. By investigating sandstone samples from wells in the Mahu Block of China's Xinjiang province, we observed that increasing water saturation reduces the stress sensitivity of tight sandstone. By conducting stress sensitivity experiments under varying water content conditions, we found that the stress sensitivity coefficient is not a constant value but decreases as water saturation increases. Based on experimental comparisons, an optimized power-law model for stress-sensitive damage assessment was refined. By conducting stress-sensitive damage assessment experiments under different water content conditions and integrating the concept of comprehensive compression coefficient, an improved stress-sensitive power-law model was established allowing for the influence of water content. The accuracy of this improved model was increased by 46.98% compared to the original power-law model through experimental validation. The research outcomes can enhance the accuracy of permeability and productivity evaluation, providing valuable guidance for unconventional oil and gas development. [ABSTRACT FROM AUTHOR]

Published
2023
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157. An Interactive Construction Method of 3D Objects from Chinese Ink Paintings

Author

Yang, Lijie, Xu, Tianchen, Li, Xiaoshan, Pan, Zhigeng, Editor-in-chief, Cheok, Adrian David, Editor-in-chief, Mueller, Wolfgang, Editor-in-chief, 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, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Weikum, Gerhard, Series editor, and Zhang, Mingmin, editor

Published
2015
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167. Development and Regeneration Performance of LaNiO3 Perovskite Oxides for Dry Reforming of Methane.

Author

Cao, Dingshan, Luo, Cong, Cai, Guoqiu, Luo, Tong, Wu, Fan, Li, Xiaoshan, Zheng, Ying, and Zhang, Liqi

Abstract

Dry reforming of methane (DRM) process has attracted much attention in recent years for the direct conversion of CH4 and CO2 into high-value-added syngas. The key for DRM was to develop catalysts with high activity and stability. In this study, LaNiO3 was prepared by the sol-gel, co-precipitation, and hydro-thermal methods to explore the influence of preparation methods on the catalyst structure and DRM reaction performance. The regeneration properties of the used LaNiO3 catalysts were also investigated under steam, CO2, and air atmospheres, respectively. The results showed that LaNiO3 prepared by sol-gel method showed the best DRM performance at 750°C. The DRM performance of the samples prepared by hydro-thermal method was inhibited at 750°C due to the residual of Na+ ions during the preparation process. The regeneration tests showed that none of the three atmospheres could restore LaNiO3 perovskite phase in the samples, but they could eliminate the carbon deposits in the samples during the DRM reaction, so the samples could maintain stable DRM performance at different cycling stages. [ABSTRACT FROM AUTHOR]

Published
2023
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172. Main Control Factors and Hydrocarbon Accumulation Model of Volcanic Oil Reservoirs with Complex Oil–Water Relationships: A Case Study of the Carboniferous in the Chepaizi Uplift, the Junggar Basin, China

Author

Li, Xiaoshan, primary, Pan, Hong, additional, Wu, Yuxiao, additional, Luo, Guanxing, additional, Song, Junqiang, additional, Yang, Liu, additional, Gu, Kaifang, additional, Jin, Ping, additional, Wang, Shuo, additional, Li, Ting, additional, and Zhang, Lifeng, additional

Published
2022
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179. Interactive Transformations from Object-Oriented Models to Component-Based Models

Author

Li, Dan, Li, Xiaoshan, Liu, Zhiming, Stolz, Volker, 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, Arbab, Farhad, editor, and Ölveczky, Peter Csaba, editor

Published
2012
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180. Semi-classical Bergman kernel asymptotics on complex manifolds with boundary

Author

Hsiao, Chin-Yu, Li, Xiaoshan, and Marinescu, George

Subjects
Mathematics - Differential Geometry, Mathematics - Analysis of PDEs, Differential Geometry (math.DG), Mathematics - Complex Variables, FOS: Mathematics, Complex Variables (math.CV), Analysis of PDEs (math.AP)
Abstract

Let $M$ be a relatively compact connected open subset with smooth connected boundary of a complex manifold $M'$. Let $(L, h^L)\rightarrow M'$ be a positive line bundle over $M'$. Suppose that $M'$ admits a holomorphic $\mathbb R$-action which preserves the boundary of $M$ and the $\R$-action can be lifted to $L$. In this work, we establish an asymptotic expansion for the Bergman kernel of the $\overline\partial$-Neumann operator on $\overline M$ with respect to high powers of $L$., 55 pages

Published
2022

187. AutoPA: Automatic Prototyping from Requirements

Author

Li, Xiaoshan, Liu, Zhiming, Schäf, Martin, Yin, Ling, 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, and Margaria, Tiziana, editor

Published
2010
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188. Modelling with Relational Calculus of Object and Component Systems - rCOS

Author

Chen, Zhenbang, Hannousse, Abdel Hakim, Van Hung, Dang, Knoll, Istvan, Li, Xiaoshan, Liu, Zhiming, Liu, Yang, Nan, Qu, Okika, Joseph C., Ravn, Anders P., Stolz, Volker, Yang, Lu, Zhan, Naijun, 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, Rausch, Andreas, editor, Reussner, Ralf, editor, Mirandola, Raffaela, editor, and Plášil, František, editor

Published
2008
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189. Harnessing rCOS for Tool Support —The CoCoME Experience

Author

Chen, Zhenbang, Li, Xiaoshan, Liu, Zhiming, Stolz, Volker, Yang, Lu, 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, Jones, Cliff B., editor, Liu, Zhiming, editor, and Woodcock, Jim, editor

Published
2007
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192. Development and Regeneration Performance of LaNiO3Perovskite Oxides for Dry Reforming of Methane

Author

Cao, Dingshan, Luo, Cong, Cai, Guoqiu, Luo, Tong, Wu, Fan, Li, Xiaoshan, Zheng, Ying, and Zhang, Liqi

Abstract

Dry reforming of methane (DRM) process has attracted much attention in recent years for the direct conversion of CH4and CO2into high-value-added syngas. The key for DRM was to develop catalysts with high activity and stability. In this study, LaNiO3was prepared by the sol-gel, co-precipitation, and hydro-thermal methods to explore the influence of preparation methods on the catalyst structure and DRM reaction performance. The regeneration properties of the used LaNiO3catalysts were also investigated under steam, CO2, and air atmospheres, respectively. The results showed that LaNiO3prepared by sol-gel method showed the best DRM performance at 750°C. The DRM performance of the samples prepared by hydro-thermal method was inhibited at 750°C due to the residual of Na+ions during the preparation process. The regeneration tests showed that none of the three atmospheres could restore LaNiO3perovskite phase in the samples, but they could eliminate the carbon deposits in the samples during the DRM reaction, so the samples could maintain stable DRM performance at different cycling stages.

Published
2023
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193. MILD-Oxy Combustion Characteristics of Pulverized Coal Affected by Oxidizer O2Concentrations under Dry and Wet Recycle Modes

Author

Zhao, Zhenghong, Zhang, Zewu, Zha, Xiaojian, Gao, Ge, Li, Xiaoshan, Wu, Fan, Luo, Cong, and Zhang, Liqi

Abstract

Moderate or intense low-oxy dilution oxy-fuel (MILD-oxy) combustion can synergistically reduce the emissions of CO2and NOx, and its industrial implementation is carried out under dry and wet recycle modes. In this work, a series of numerical simulations on pulverized coal MILD-oxy combustion under the typical dry and wet recycle modes are performed, aiming at fully evaluating the combustion behaviors affected by the oxidizer O2concentration (21–30%) under different recycle modes. The results show that increasing O2concentration weakens the in-furnace flue gas recirculation and promotes the combustion intensity, while a more uniform temperature distribution is obtained under dry recycle mode than under wet recycle mode. The diffusion/kinetics-controlled MILD regime is realized as the O2concentration increases. Nevertheless, the diffusion effect is enhanced due to the accelerated reaction rate under a high O2level. The gasification reaction is strengthened with the increased O2concentration. Compared with wet recycle mode, the burnout of coal char is slowed down under dry recycle mode because of the lower burnout rate. The fuel-NO conversion ratio is significantly reduced with the increased O2concentration, while wet recycle mode shows more potential in achieving low NOxemission than dry recycle mode. This work is expected to provide new insights into the comprehensive understanding of MILD-oxy combustion.

Published
2023
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195. Component-Based Software Engineering : The Need to Link Methods and Their Theories

Author

Jifeng, He, Li, Xiaoshan, Liu, Zhiming, 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, Dough, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Van Hung, Dang, editor, and Wirsing, Martin, editor

Published
2005
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196. rCOS: Refinement of Component and Object Systems

Author

Liu, Zhiming, Jifeng, He, Li, Xiaoshan, 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, Dough, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, de Boer, Frank S., editor, Bonsangue, Marcello M., editor, Graf, Susanne, editor, and de Roever, Willem-Paul, editor

Published
2005
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197. A Predicative Semantic Model for Integrating UML Models

Author

Yang, Jing, Long, Quan, Liu, Zhiming, Li, Xiaoshan, 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, Dough, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Liu, Zhiming, editor, and Araki, Keijiro, editor

Published
2005
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198. Generating a Prototype from a UML Model of System Requirements

Author

Li, Xiaoshan, Liu, Zhiming, He, Jifeng, Long, Quan, 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, Dough, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Ghosh, R. K., editor, and Mohanty, Hrushikesha, editor

Published
2005
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