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| 1 | Geological and Geochemical Characteristics and Exploration Prospect of Coal-Derived Tight Sandstone Gas in China: Case Study of the Ordos, Sichuan, and Tarim Basins显示文摘This work extensively investigated global tight sandstone gas, and geologically and geochemically analyzed the tight sandstone gas in China's Ordos, Sichuan, and Tarim basins. We compared typical tight sandstone gas in China with that in North America. We proposed six conditions for the formation of China's tight sandstone gas, and illustrated the geological characteristics of tight sandstone gas. In China, gas-bearing tight sandstones were mainly deposited in continental lake deltas and marine-terrigenous facies basin environments, associated with coal-measure strata, and were mostly buried deeper than 2000 m under a formation pressure of 20–30 MPa, with pressure coefficients varying from overpressure to negative pressure. In other countries, tight gas bearing sandstones were dominantly deposited in marine to marine-terrigenous facies environments, occurred in coal-measure strata, and were mostly buried shallower than 2000 m in low-pressure systems. We systematically analyzed tight sandstone gas in the Ordos, Sichuan, and Tarim basins in terms of chemical compositions, geochemical characteristics of carbon isotopes, origins, and sources. Tight sandstone gas in China usually has a hydrocarbon content of >95%, with CH4 content >90%, and a generally higher dry coefficient. In the three above-mentioned large tight sandstone gas regions, δ13 C1 and δ13 C2 mainly ranges from-42‰ to-28‰ and from-28‰ to-21‰, respectively. Type III coal-measure source rocks that closely coexist with tight reservoirs are developed extensively in these gas regions. The organic petrology of source rocks and the carbon isotope compositions of gas indicate that tight sandstone gas in China is dominantly coal-derived gas generated by coal-measure strata. Our analysis of carbon isotope series shows that local isotope reversals are mainly caused by the mixing of gases of different maturities and that were generated at different stages. With increasing maturity, the reversal tendency becomes more apparent. Moreover, natural gas with medium-low maturity(e.g., Xujiahe Formation natural gas in the Sichuan Basin) presents an apparent reversal at a low-maturity stage, a normal series at a medium-maturity stage, and a reversal tendency again at a high-maturity stage. Finally, we proposed four conditions for preferred tight sandstone gas 'sweep spots,' and illustrated the recoverable reserves, proven reserves, production, and exploration prospects of tight sandstone gas. The geological and geochemical characteristics, origins, sources, and exploration potential of tight sandstone gas in China from our research will be instructive for the future evaluation, prediction, and exploration of tight sandstone gas in China and abroad. | ZOU Caineng TAO Shizhen HAN Wenxue ZHAO Zhenyu MA Weijiao LI Changwei BAI Bin GAO Xiaohui | 2018 | Acta Geologica Sinica(English Edition)2018，92，4： | 11 |
| 2 | Comparative experimental investigation of chemical grouting into a fracture with flowing and static water显示文摘我们在场进有流动和静电干扰的破裂的化学 grouting 上的一系列试验性的测试流水,用透明破裂 grouting 试验性的设备。渗出物压力和薄泥浆繁殖的变化在我们的调查被比较。流动的水导致的结果表演渗出物压力落下,在繁殖区域的在上游的方面和落下的穿入半径的开发在一样的时期期间,与静态的水里的 grouting 相比。在薄泥浆到达联合边界以前,静态的水里的繁殖区域总是是圆的。然而,繁殖形状与流动的水为 grouting 从回合变成到椭圆形的形状破裂。为在就流动速度而言的破裂的薄泥浆穿入半径的一个理论模型被我们的试验性的结果开发并且验证。这些结果在改进破裂 grouting 机制并且在指导的理解是有用的设计惯例。 | Zhang Gailing Zhan Kaiyu Gao Yue Wang Wenxue | 2011 | Mining Science and Technology2011，21，2： | 7 |
| 3 | Effects of long-term fertilization with different substitution ratios of organic fertilizer on paddy soil显示文摘In recent years,the abuse of chemical fertilizers has caused numerous environmental problems,such as soil acidification and compaction.Replacing chemical fertilizers with organic fertilizers can effectively alleviate these problems.However,the effects of alternative organic fertilizers remain unclear.To explore the effects of organic fertilizer substitution on rice yield and paddy soil physicochemical properties and bacterial community structure,we conducted a 5-year experiment using different proportions of organic fertilizer substitution in a double-cropping rice field in Jiangxi,China.Our results showed that replacing chemical fertilizers with organic fertilizers can reduce soil acidification,increase soil organic matter content,nutrient contents,and enzyme activities,improve soil physicochemical properties and microbial community,and enhance soil metabolism.Appropriate organic substitution also had positive effects on rice production.These findings enhance our understanding of the effects of different alternative organic fertilization methods and have important theoretical significance for the promotion of the use of organic fertilizers in the future. | Weifeng SONG Aiping SHU Jiai LIU Wenchong SHI Mingcong LI Wenxue ZHANG Zuzhang LI Guangrong LIU Fusheng YUAN Shuxin ZHANG Zengbing LIU Zheng GAO | 2022 | Pedosphere2022，32，4： | 7 |
| 4 | A draft sequence of the rice (Oryza sativa ssp. indica) genome显示文摘The sequence of the rice genome holds fundamental information for its biology, including physiology, genetics, development, and evolution, as well as information on many beneficial phenotypes of economic significance. Using a 'whole genome shotgun' approach, we have pro-duced a draft rice genome sequence of Oryza sativa ssp. in-dica, the major crop rice subspecies in China and many other regions of Asia. The draft genome sequence is constructed from over 4.3 million successful sequencing traces with an accumulative total length of 2214.9 Mb. The initial assembly of the non-redundant sequences reached 409.76 Mb in length, based on 3.30 million successful sequencing traces with a total length of 1797.4 Mb from an indica variant cultivar 93-11, giving an estimated coverage of 95.29% of the rice genome with an average base accuracy of higher than 99%. The coverage of the draft sequence, the randomness of the sequence distribution, and the consistency of BIG-ASSEM-BLER, a custom-designed software package | YU Jun, HU Songnian, WANG Jun,LI Songgang WONG Ka-Shu Gane, LIU Bin,DENG Yajun, DAI Li, ZHOU Yan,ZHANG Xiuqing, CAO Mengliang, LIU Jing,SUN Jiandong , TANG Jiabin, CHEN Yanjiong,HUANG Xiaobing, LIN Wei, YE Chen, TONG Wei,CONG Lijuan, GENG Jianing, HAN Yujun, LI Lin,LI Wei, HU Guangqiang, HUANG Xiangang,LI Wenjie, LI Jian, LIU Zhanwei, LI Long,LIU Jianping, Ql Qiuhui, LIU Jinsong, LI Li,WANG Xuegang, LU Hong, WU Tingling,ZHU Miao, Nl Peixiang, HAN Hua, DONG Wei,REN Xiaoyu, FENG Xiaoli, GUI Peng,LI Xianran, WANG Hao, XU Xin, ZHAI Wenxue,XU Zhao, ZHANG Jinsong, HE Sijie,ZHANG Jianguo, XU Jichen, ZHANG Kunlin,ZHENG Xianwu, DONG Jianhai, ZENG Wanyong,TAO Lin, CHEN Xuewei, HE Jun, LIU Daofeng,TIAN Wei, TIAN Chaoguang, XIA Hongai,LI Gang, GAO Hui, LI Ping, CHEN Wei ,WANG Xudong, ZHANG Yong, HU Jianfei,WANG Jing, LIU Song, YANG Jian,ZHANG Guangyu, XIONG Yuqing, LI Zhijie,MAO Long, ZHOU Chengshu, ZHU Zhen,CHEN Runsheng, HAO Bailin,ZHENG Weimou, CHEN Shouyi, QUO Wei,LI Guojie, LIU Siqi, HUANG Guyang,TAO Ming, WANG Jian, ZHU Lihuang,YUAN Longping& YANG HuanmingBeijing Genomics Institute/Center of Genomics & Bioinformatics, Chinese Academy of Sciences, Beijing 101300, China Hangzhou Genomics Institute/Institute of Bioinformatics of Zhejiang University/Key Laboratory of Bioinformatics of Zhejiang Province, Hangzhou 310007, China Institute of Genetics, Chinese Academy of Sciences, Beijing 100101, China National Hybrid Rice R & D Center, Changsha 410125, China Laboratory of Bioinformatics, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China College of Life Sciences, Peking University, Beijing 100871, China Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing 1Q0080, China Digital China Ltd., Beijing 100080, China Institute of Computing Technology, Chinese Academy of Sciences, Beijing 100080, China Medical College, Xi’an Jiaotong University, Xi’an 710061, ChinaThese authors contributed equally to this work.Corresponding author.Corresponden | 2001 | Chinese Science Bulletin2001，46，23： | 6 |
| 5 | Analysis of the ore-controlling structure of the Shihu gold deposit, Hebei Province and deep-seated ore-prospecting prediction显示文摘Under the guidance of the theory of mantle-branch structure-associated metallogenesis and on the basis of the geological characteristics, analysis of the ore-forming and ore-controlling structures, the geochemical characteristics of metallogenesis, the source of ore-forming materials, changes in the physical and chemical conditions of metallogenesis, changes in the vertical width of ore veins, and changes in gold grade of the Shihu gold deposit, the mechanism of its metallogenesis was discussed and the rules of vertical variation of ore veins were summarized in this study. It is pointed out that the orebodies under exploitation at present time should be in the middle and upper portions of gold veins in the Shihu gold mining district. Particularly on the basis of the characteristics of mantle-branch structure-associated metallogenesis, it is indicated that metallogenesis is controlled mainly by such ore-forming conditions as temperature and pressure. Deep-seated ore-forming fluids are characterized mainly by injection and precipitation. So the vein bodies in the adjacent metallogenic structures are of obvious comparability, and there would be great prospects for ore search both at depth and in the periphery of the Shihu gold deposit. Therefore, ore prospecting should be strengthened both at depth and in the peripheries. | NIU Shuyin WANG Baode SUN Aiqun CHEN Chao WANG Zili MA Baojun WANG Wenxue JIANG Xiaoping ZHAO Yongli GAO Yincang LIU Huabin QIU Jianping | 2009 | Chinese Journal Of Geochemistry2009，28，4： | 6 |
| 6 | Reconstruction of different scales of pore-fractures network of coal reservoir and its permeability prediction with Monte Carlo method显示文摘There are millimeter, micron and nanometer scales of pores and fractures in coal to describe different scales of coal pores and fissures communicating path and to quantitatively characterize their permeability. Such information provides an important basis for studying coalbed methane output mechanism. The pores and fissures in a large number of coal samples were observed and counted by scanning electron microscopy and optical microscopy. The probability distribution models of pore-fissure network were then established. Different scales of pore-fissures 2D network models were reconstructed by Monte Carlo method. The 2D seepage models were obtained through assignment zero method and using Matlab software. The effect of permeability on different scale pore-fractures network was obtained by two-dimensional seepage equation. Predicted permeability is compared with the measured ones. The results showed that the dominant order of different scale pore-fractures connected path from high to low is millimeter-sized fractures, seepage pores and micron-size fractures. The contribution of coal reservoir permeability from large to small is millimeter-size fractures, micron-size fractures and seepage pores. Different parameters in different scale pore-fractures are of different influence permeability.Reconstruction of different scale pore-fractures network can clearly display the connectivity of porefractures, which can provide a basis for selecting migration path and studying gas flow pattern. | Ni Xiaoming Chen Wenxue Li Zheyuan Gao Xiang | 2017 | International Journal of Mining Science and Technology2017，27，4： | 5 |
| 7 | Catalytic oxidation of CO on mesoporous codoped ceria catalysts:Insights into correlation of physicochemical property and catalytic activity显示文摘Codoping approach is an appealing strategy to further improve the catalytic activity of Ce-based catalysts.In the present study,Mn and/or Cu doped ceria solid solutions MnxCuyCe1-x-yO2,CuxCe1-xO2,MnxCe1-xO2 and pure CeO2 were prepared by CTAB-assisted hydrothermal method for CO oxidation.XRD,SEM,EDS,BET,Raman,H2-TPR,XPS and in situ DRIFTS techniques were carried out to study the physicochemical properties and to correlate them to the activity.The doped samples maintain the cubic fluorite structure of CeO2 with high crystallinity and small crystallite size,forming Ce-based solid solutions.The obtained catalysts have large mesoporous structure with average pore size of 10-14 nm.The doped transition metal enhances the oxygen vacancies and improves reducibility of the solids.The synergistic interaction of Mn and Cu codoping induces mo re oxygen vacancies,pro moting the increase of surface adsorbed oxygen and the transfer of bulk oxygen of catalyst,thereby enhancing the catalytic activity for CO oxidation.Besides,the decomposition rate of the carbonate species which is derived from in situ DRIFTS for each catalyst can provide a measure to evaluate its catalytic activity of CO oxidation. | Hongjian Zhu Yingying Chen Yibo Gao Wenxu Liu Zhongpeng Wang Chenchen Cui Wei Liu Liguo Wang | 2019 | Journal of Rare Earths2019，37，9： | 5 |
| 8 | A novel adaptive lateral reentry guidance algorithm with complex distributed no-fly zones constraints显示文摘Aimed at complex distributed no-fly zones avoidance problems,a novel adaptive lateral reentry guidance algorithm is proposed.Firstly,by introducing the improved attractive and repulsive potential fields,an improved artificial potential field method is developed.Combined with the proposed judgment criterion for whether a no-fly zone has been avoided,the proposed improved artificial potential field method effectively solves the reference heading angle determination problem under the constraints of complex distributed no-fly zones.Then,based on the proposed no-fly zone’s threat quantitative evaluation method and the reference heading angle determined by the proposed improved artificial potential field method,the heading corridor is improved to increase its sensitivity to the threat changes of the no-fly zones.Finally,for satisfying the requirements of complex distributed no-fly zones avoidance,a novel guidance logic via improved heading corridor is proposed to update the reference heading corridor adaptively in real time according to the threat and constraint changes of the no-fly zones,and the bank reversal logic is employed to control the lateral motion.The simulation results for nominal and dispersed cases indicate that the proposed guidance algorithm has high robustness,stability,and applicability,and is feasible and effective to deal with the complex distributed no-fly zones avoidance problems. | Yudong HU Changsheng GAO Junlong LI Wuxing JING Wenxue CHEN | 2022 | Chinese Journal of Aeronautics2022，35，7： | 2 |
| 9 | Research and Design of Digital Video Player Based on AML8618显示文摘 | Jin Wang Wanlin Gao Qi Zhang Wenxue Cao Qing Wang Hongbiao Jiang | | 0，，： | 1 |
| 10 | Experimental determination and research on combustion characteristics range of gas appliance显示文摘 | GAO Wenxue WANG Qi CHEN Guanyi | | 0，，： | 1 |
| 11 | Online Chinese-Vietnamese Bilingual Topic Detection Based on RCRP Algorithm with Event Elements显示文摘 | Wenxu Long Jixun Gao Zhengtao Yu | 2014 | Com- munications in Computer and In{ormation Science2014，496，1： | 1 |
| 12 | Study on Blasting Vibration Effects of Shallow Tunnel Excavation 显示文摘 | GAO Wenxue SUN Wenlong DENG Hongliang | 2011 | Advanced Materials Research2011，，： | 1 |
| 13 | Practice and exploration on testing gas mixing 显示文摘 | Gao Wenxue Wang Qi Zhao Zijun | 2008 | Gas and Heat2008，28，11： | 1 |
| 14 | Trajectory tracking guidance of interceptor via prescribed performance integral sliding mode with neural network disturbance observer显示文摘This paper investigates interception missiles’trajectory tracking guidance problem under wind field and external disturbances in the boost phase.Indeed,the velocity control in such trajectory tracking guidance systems of missiles is challenging.As our contribution,the velocity control channel is designed to deal with the intractable velocity problem and improve tracking accuracy.The global prescribed performance function,which guarantees the tracking error within the set range and the global convergence of the tracking guidance system,is first proposed based on the traditional PPF.Then,a tracking guidance strategy is derived using the integral sliding mode control techniques to make the sliding manifold and tracking errors converge to zero and avoid singularities.Meanwhile,an improved switching control law is introduced into the designed tracking guidance algorithm to deal with the chattering problem.A back propagation neural network(BPNN)extended state observer(BPNNESO)is employed in the inner loop to identify disturbances.The obtained results indicate that the proposed tracking guidance approach achieves the trajectory tracking guidance objective without and with disturbances and outperforms the existing tracking guidance schemes with the lowest tracking errors,convergence times,and overshoots. | Wenxue Chen Yudong Hu Changsheng Gao Ruoming An | 2024 | Defence Technology(防务技术)2024，32，2： | 0 |
| 15 | Effects of drying methods on the structure and emulsifying capacity of egg yolk lecithin显示文摘The purpose of this study was to investigate the effects of different drying methods,including ultrasonic vacuum drying,vacuum drying,vacuum freeze-drying,hot-air drying and spray drying,on the structure and emulsifying capacity of egg yolk lecithin based on Raman spectra.The results showed that ultrasonic vacuum drying and spray drying can induce the vibration of C-N bonds in the polar O-C-C-N^(+)head skeleton of egg yolk lecithin.The shift of the peak attributed to the C-N bond from 717 cm^(−1)to 774 and 772 cm^(−1)indicated that the vibration of some C-N bonds in the O-C-C-N^(+)skeleton had transformed from gauche to trans.Ultrasonic vacuum drying exerted the most intense effect on the C-C skeleton of egg yolk lecithin,with the greatest vibration peaks at 1062 cm^(−1),1128 cm^(−1),and 1097 cm^(−1)in the Raman spectra of egg yolks.Specifically,it relieved gauche vibration and strengthened trans vibration in the C-C skeleton.Hence,the I_(gauche)/I_(trans)ratio of the egg yolk lecithin processed through ultrasonic vacuum drying decreased.Ultrasonic vacuum drying and spray drying decreased the I_(2850)/I_(2878)ratio of the vibration peak of C-H bonds in the lipid chains of egg yolk lecithin.The weakening of the symmetric stretching vibration of the C-H bond and the strengthening of antisymmetric stretching vibration indicated that orderliness among the molecular chains of lipid bilayer membranes had increased,whereas liquidity had decreased.The emulsifying capacities were highly significantly different among various egg yolk lecithin samples,in which the highest emulsifying capacity(49.58 m^(2)/g)was shown for the egg yolk lecithin prepared through vacuum freeze-drying,and ultrasonic vacuum drying produced the lowest emulsifying capacity(14.77 m^(2)/g).This study demonstrated that ultrasonic vacuum drying and spray drying drastically affected the structure of egg yolk lecithin.The appropriate drying method can be selected based on sample volume and production situation. | Xiting Bai Jiaqi Gao Yu Yang Wenxue Zhu Jinling Fan | 2020 | International Journal of Agricultural and Biological Engineering2020，13，4： | 0 |
| 16 | Effects of Three Drugs on Membrane Metabolism Against Cysticerci cellulosae in vitro显示文摘To investigate the effects and mechanisms of the benzimidazole carbamate and benmidine drugs on Cysticerci cellulosae and choose effective drugs on Cysticerci cellulosae,the membrane metabolism of Cysticerci cellulosae in vitro was tested after three kinds of drugs which were used respectively. The indexes included the contents of lipids,the contents of SA and the changes of the membrane fluidity. The results showed that oxfendazole could inhibit the membrane metabolism of immature and mature Cysticerci cellulosae in vitro,and albendazole only inhibited the mature one,while thibendimidine neither acted on the immature nor mature one. | HAO Yanhong LI Qingzhang GAO Xuejun LIU Yongjie GAO Wenxue | 2009 | Journal of Northeast Agricultural University(English Edition)2009，16，3： | 0 |
| 17 | Extensions of Breiman’s Theorem of Product of Dependent Random Variables with Applications to Ruin Theory显示文摘We consider the tail behavior of the product of two dependent random variables X andΘ.Motivated by Denisov andZwart(JAppl Probab 44:1031-1046,2007),we relax the condition of the existing α+ε th moment ofΘin Breiman’s theorem to the existingαth moment and obtain the similar result as Breiman’s theorem of the dependent product XΘ,while X andΘfollow a copula function.As applications,we consider a discrete-time insurance risk model with dependent insurance and financial risks and derive the asymptotic tail behaviors for the(in)finite-time ruin probabilities. | Yu Chen Dan Chen Wenxue Gao | 2019 | Communications in Mathematics and Statistics2019，7，1： | 0 |
| 18 | Integrated simulation and monitoring to analyze failure mechanism of the anti-dip layered slope with soft and hard rock interbedding显示文摘The significant difference between the mechanical properties of soft rock and hard rock results in the complexity of the failure mode of the anti-dip layered slope with soft and hard rock interbedding.In order to reveal the landslide mechanism,taking the north slope of Fushun West Open-pit Mine as an example,this paper analyzed the failure mechanism of different landslides with monitoring and field surveys,and simulated the evolution of landslides.The study indicated that when the green mudstone(hard rock)of the anti-dip slope contains siltized intercalations(soft rock),the existence of weak layers not only aggravates the toppling deformation of anti-dip layered slope with high dip,but also causes the shear failure of anti-dip layered slope with stable low dip.The shear failure including subsidence induced sliding and wedge failure mainly exists in the unloading zone of the slope.Its failure depth and failure time were far less than that of toppling failure.In terms of the development characteristics of deformation,toppling deformation has the long-term and progressive characteristics,but shear failure deformation has the abrupt and transient characteristics.This study has deepened the understanding of such slope landslide mechanism,and can provide reference for similar engineering. | Jinduo Li Yuan Gao Tianhong Yang Penghai Zhang Yong Zhao Wenxue Deng Honglei Liu Feiyue Liu | 2023 | International Journal of Mining Science and Technology2023，33，9： | 0 |
| 19 | Intensifying Earthquake Prediction in the Light of Action of International Decade for Natural Disaster Reduction显示文摘This paper is a review on earthquake prediction and forecast research,progress in earthquake prediction work and pre-estimation of earthquake hazard degree in China in recent years.It indicates that China is the first country,the government of which has promoted and organized the state administration department on reduction of seismic hazards and ensured the socialization of earthquake prediction and forecast in the world.A program of earthquake prevention and protection and hazard reduction based on the results of research on earthquake occurrence regularities and prediction of earthquake preparation trend has been completed,and hence the socialization of results of earthquake prediction and forecast research can be expected to be in practice.The practical seismological works in last 20 years indicate that the earthquakes are not considered to be unpredictable,but it is a challenge remaining to be accepted.We are willing to cooperate with all friends who are engaged in earthquake prediction and | Gao Wenxue and Gao QinhuaState Seismological Bureau,Beijing 100036,China Institute of Geology,SSB,Beijing 100029,China | 1995 | Earthquake Research in China1995，9，2： | 0 |
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