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13篇 您的检索式:作者名="SHI Guiyang"
    题名 作者 年代 出处 被引量
1Primary scientific results of Chang'E-1 lunar mission显示文摘The strategic plan for the development of the unmanned Chinese Lunar Exploration Program is characterized by three distinct stages: 'orbiting around', 'landing on' and 'returning from' the Moon. The first Chinese lunar probe, Chang'E-1, which was successfully launched on October 24th, 2007 at Xichang Satellite Launch Center, and guided to crash on the Moon on March 1st, 2009, at 52.36°E, 1.50°S, in the north of Mare Fecunditatis, is the first step towards the 'orbiting around' stage. The Chang'E-1 mission lasted 495 days, exceeding the expected life-span by about four months. A total of 1.37 TB raw data was received from Chang'E-1. It was then processed into 4 TB scientific data products at various levels. Many scientific results have been obtained by analyzing these data, including especially the 'global lunar image from the first Chinese lunar explora- tion mission'. All scientific goals of Chang'E-1 have been achieved. It provides much useful materials for further advances of lunar sciences and planetary chemistry. Meanwhile, these results will serve as a firm basis for future Chinese lunar missions.OUYANG ZiYuan1,2, LI ChunLai1, ZOU YongLiao1, ZHANG HongBo1, Lü Chang1, LIU JianZhong1, LIU JianJun1, ZUO Wei1, SU Yan1, WEN WeiBin1, BIAN Wei1, ZHAO BaoChang3, WANG JianYu4, YANG JianFeng3, CHANG Jin5, WANG HuanYu6, ZHANG XiaoHui7, WANG ShiJin7, WANG Min1, REN Xin1, MU LingLi1, KONG DeQing1, WANG XiaoQian1, WANG Fang1, GENG Liang1, ZHANG ZhouBin1, ZHENG Lei1, ZHU XinYing1, ZHENG YongChun1, LI JunDuo1, ZOU XiaoDuan1, XU Chun1, SHI ShuoBiao1, GAO YiFei1 & GAO GuanNan1 1 National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, China 2 Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550002, China 3 Xi’an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi’an 710119, China 4 Shanghai Institute of Technical Physics, Chinese Academy of Sciences, Shanghai 200083, China 5 Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210008, China 6 Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China 7 Center for Space Science and Applied Research, Chinese Academy of Sciences, Beijing 100190, China 2010Science China Earth Sciences2010,53,11:11
2Pioneer organisms after F-F mass extinction in Dushan region,Guizhou Province,and their significance in establishing new ecosystem显示文摘After mass extinctions, most areas became “ecologically barren areas” lacking or even without ecosystem over an extensive region. Studying the pioneer organisms and the reconstruction process of a new ecosystem in the “ecologically barren area” is very important for revealing the evo- lution after bio-mass extinctions. In the Dushan region, Guizhou Province, China, the trace fossils appeared and flourished evidently earlier than body fossils after Frasnian-Famennian (F-F) mass extinction. The pioneer organisms and pathfinders in the “ecologically barren areas” are the trace-makers that are deposit-feeders with relatively simple structure and conformation on or near the deposit surface. The trace-makers have undergone an evolutionary process that their trace structures changed from simple to complex, and their living and moving areas and spaces enlarged from linear to planar and then to three-dimension spaces. Those characters show that the ability of the trace-makers to deposits and their efficiency of looking for food have been enhanced gradually and that those trace-makers constructed gradually a base for the new ecosystem. This process is similar to that of the trace fossils near the Precambrian-Cambrian boundary. In the Dushan area, only the recovery intervals have been identified for the Famennian body fossils, with no eminent radiation interval recognizable due to the Devonian-Carboniferous (C-D) mass ex- tinction. However, both the recovery and radiation intervals may be clearly recognized in the Famen- nian trace fossils based on their conformation and diversity. The evolution and diversification of the trace fossils in the “ecologically barren area” is considered to have played a role of necessary foun- dation for the recovery of body fossils in the ecological chain. With the gradual disappearance of the unfavourable environment factors resulting in the F-F mass extinction, a new ecosystem was reconstructed in the “ecologically barren area” through a three-step process from the “original ecosystem” to “elementary ecosystem” and finally to the “developed eco- system”. The establishment of the new ecosystem has laid a foundation for the recovery of the body fossils thereafter.WANG Yue1, 2, WANG Xunlian1 & SHI Xiaoying1 1. School of Earth Sciences and Resources, China University of Geosciences, Beijing 100083, China 2. School of Resources and Environment, Guizhou University, Guiyang 550003, China 2006Science China Earth Sciences2006,49,5:7
3Microscopic Calculation of Parameters of the sdg Interacting Boson Model for ^(104-110)Pd IsotopesLiu Yong~1 Shi Zhu-yi~2 Dan Han-jou~3 Sang Jian-ping~41 Institute of Particle Physics,Huazhong Normal University,Wuhan 4300702 Department of Physics,Guizhou Institute for Nationalities,Guiyang 5500253 Department of Physics,Xianning Teacher’s College,Xianning 4370004 Department of Physics,Wuhan University,Wuhan 430072 1995Chinese journal of nuclear physics1995,,3:5
4Piezoelectric properties of low loss and high Curie temperature (Bi, La)FeO_3-Pb(Ti, Mn)O_3 ceramics with Mn doping显示文摘Piezoelectric ceramics of 0.6(Bi0.9La0.1)FeO3-0.4Pb(Ti1-xMnx)O3 (BLF-PTM) for x=0, 0.01, 0.02, and 0.03 were prepared by sol-gel process combined with a solid-state reaction method. The tan? for BLF-PTM of x=0.01 is just 0.006 at 1 kHz, drastically decreasing by using Mn dopants. The TC increases to 490 ℃ for BLF-PTM of x=0.02. Furthermore, Mn modification effectively enhances the poling state and the piezoelectric properties of BLF-PTM. The kp, Qm, d33, and g33 of 0.34, 403, and 124 pC1·N-1 and 37×10-3 Vm·N-1 are achieved for BLF-PTM of x=0.01. The results indicate that Mn modified BLF-PTM is a competitive high power and high temperature piezoelectric material with excellent piezoelectric properties.SHI Guiyang, WANG Dalei, BU Shundong, JIN Dengren, and CHENG Jinrong School of Materials Science and Engineering, Shanghai University, Shanghai, 200072, China 2012Rare Metals2012,31,6:2
5Secure Multigroup Multicast Communication Systems via Intelligent Reflecting Surface显示文摘This paper considers a secure multigroup multicast multiple-input single-output(MISO)communication system aided by an intelligent reflecting surface(IRS).Specifically,we aim to minimize the transmit power at Alice via jointly optimizing the transmit beamformer,artificial noise(AN)vector and phase shifts at the IRS subject to the secrecy rate constraints as well as the unit modulus constraints of IRS phase shifts.To tackle the optimization problem,we first transform it into a semidefinite relaxation(SDR)problem,and then alternately update the transmit beamformer and AN matrix as well as the phase shifts at the IRS.In order to reduce the high computational complexity,we further propose a low-complexity algorithm based on second-order cone programming(SOCP).We decouple the optimization problem into two sub-problems and optimize the transmit beamformer,AN vector and the phase shifts alternately by solving two corresponding SOCP subproblem.Simulation results show that the proposed SDR and SOCP schemes require half or less transmit power than the scheme without IRS,which demonstrates the advantages of introducing IRS and the effectiveness of the proposed methods.Weiping Shi Jiayu Li Guiyang Xia Yuntian Wang Xiaobo Zhou Yonghui Zhang Feng Shu 2021China Communications2021,18,3:1
6LucidDraw:Efficiently Visualizing Complex Biochemical Networks Within Matlab显示文摘He Sheng Mei Juan Shi Guiyang 2010BMC Bioinformatics2010,11,1:1
7Lucid Draw:Efficiently Visualizing Complex Biochemical Netw orks Within Matlab显示文摘He Sheng Mei Juan Shi Guiyang 2010BM C Bioinformatics2010,11,31:1
8High yield recombinant thermostable at -amylase production using an improved Bacillus licheniformis system显示文摘NIU Dandan ZUO Zhimi SHI Guiyang 2009Microb Cell Fact2009,58,8:1
9Biotechnological and food synthetic biology potential of platform strain:Bacillus licheniformis显示文摘Bacillus licheniformis is one of the most characteristic Gram-positive bacteria.Its unique genetic background and safety characteristics make it have important biologic applications in the food industry,including,the biosyn-thesis of high value-added bioproducts,probiotic functions,biological treatment of wastes derived from food production,etc.In this review,these recent advances are summarized and presented systematically for the first time.In addition,we highlight synthetic biology strategies as a potential driver of developing this strain for wider and more efficient application in the food industry.Finally,we present the current challenges faced and provide our unique perspective on relevant future research directions.In summary,this review will provide an illumi-nating and comprehensive perspective that will allow an in-depth understanding of B.licheniformis and promote its more effective development in the food industry.Hehe He Qianqian Yu Zhongyang Ding Liang Zhang Guiyang Shi Youran Li 2023Synthetic and Systems Biotechnology2023,8,2:0
10Mechanisms and biotechnological applications of transcription factors显示文摘Transcription factors play an indispensable role in maintaining cellular viability and finely regulating complex internal metabolic networks.These crucial bioactive functions rely on their ability to respond to effectors and concurrently interact with binding sites.Recent advancements have brought innovative insights into the understanding of transcription factors.In this review,we comprehensively summarize the mechanisms by which transcription factors carry out their functions,along with calculation and experimental-based methods employed in their identification.Additionally,we highlight recent achievements in the application of transcription factors in various biotechnological fields,including cell engineering,human health,and biomanufacturing.Finally,the current limitations of research and provide prospects for future investigations are discussed.This review will provide enlightening theoretical guidance for transcription factors engineering.Hehe He Mingfei Yang Siyu Li Gaoyang Zhang Zhongyang Ding Liang Zhang Guiyang Shi Youran Li 2023Synthetic and Systems Biotechnology2023,8,4:0
11Beamforming design for RIS-aided amplify-and-forward relay networks显示文摘The use of a reconfigurable intelligent surface(RIS)in the enhancement of the rate performance is considered to involve the limitation of the RIS being a passive reflector.To address this issue,we propose a RIS-aided amplify-and-forward(AF)relay network in this paper.By jointly optimizing the beamforming matrix at AF relay and the phase-shift matrices at RIS,two schemes are put forward to address a maximizing signal-to-noise ratio(SNR)problem.First,aiming at achieving a high rate,a high-performance alternating optimization(AO)method based on Charnes–Cooper transformation and semidefinite programming(CCT-SDP)is proposed,where the optimization problem is decomposed into three subproblems solved using CCT-SDP,and rank-one solutions can be recovered using Gaussian randomization.However,the optimization variables in the CCT-SDP method are matrices,leading to extremely high complexity.To reduce the complexity,a low-complexity AO scheme based on Dinkelbachs transformation and successive convex approximation(DT-SCA)is proposed,where the variables are represented in vector form,and the three decoupling subproblems are solved using DT-SCA.Simulation results verify that compared to three benchmarks(i.e.,a RIS-assisted AF relay network with random phase,an AF relay network without RIS,and a RIS-aided network without AF relay),the proposed CCT-SDP and DT-SCA schemes can harvest better rate performance.Furthermore,it is revealed that the rate of the low-complexity DT-SCA method is close to that of the CCT-SDP method.Xuehui WANG Feng SHU Riqing CHEN Peng ZHANG Qi ZHANG Guiyang XIA Weiping SHI Jiangzhou WANG 2023Frontiers of Information Technology & Electronic Engineering2023,24,12:0
12Fluid inclusion evidence for the involvement of organic matter in mineralization of Hg, Sb and Au deposits显示文摘1 Research significance and study area GEOCHEMISTRY of organic matter in metallic ore deposits and the role of organic matter in metallogenesisare the hot subjects of research in the field of ore deposits and also a weak link in this field. Widespreadin the areas of Tongren, Danzhai, etc. in eastern Guizhou (simplified as southeastern Guizhou or Qiandongnan below) are large-sized Hg (dominant), Sb, and Au deposits, while in the areas of Qinglong,Xingren, Zhenfeng, Anlong, etc. In southwestern Guizhou (simplified as southwestern Guizhou orQianxinan below) are a number of large-sized and extremely large-sized microfine disseminated gold deposits and Sb and Hg deposits. Studies have shown that their ore-forming temperatures are estimated al<150℃ for Hg deposits, about 180℃ for Sb deposits and<200℃ for most Au deposits, respectively, allof them belonging to the typical low-temperature deposits. Not a few researchers have found bitumensSHI Jixi~1 and WANG Huayun~2 1. Open Laborator of Ore Deposit Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550002, China 2. Institute of Guizhou Provincial Bureau of Geology and Mineral Resoarces, Guiyang 550001, China 1999Chinese Science Bulletin1999,44,S2:0
13CcpA mutants infuence selective carbon source utilization by changing interactions with target genes in Bacillus licheniformis显示文摘The gram-positive bacterium Bacillus licheniformis exhibits obvious selective utilization on carbon sources.This process is mainly governed by the global regulator catabolite control protein A(CcpA),which can recognize and bind to multiple target genes that are widely distributed in metabolic pathways.Although the DNA-binding domain of CcpA has been predicted,the infuence of key amino acids on target gene recognition and binding has yet to be uncovered.In this study,the impact of Lys31,Ile42 and Leu56 on in vitro protein–DNA interactions and in vivo carbon source selective utilization was investigated.The results showed that alanine substitution of Lys31 and Ile42,located within the 3rd helices of the DNAbinding domain,signifcantly weakened the binding strength between CcpA and target genes.These mutations also lead to alleviated repression of xylose utilization in the presence of glucose.On the other hand,the Leu56Arg mutant in the 4th helices exhibited enhanced binding afnity compared with that of the wild-type one.When this mutant was used to replace the native one in B.licheniformis cells,the selective utilization of glucose over xylose increased.This study provides a new strategy for understanding the relationship between the function and structure of regulatory proteins.This study also used a new strategy was used to regulate carbon source utilization beyond CCR engineering.Yupeng Zhang Youran Li Fengxu Xiao Hanrong Wang Liang Zhang Zhongyang Ding Sha Xu Zhenghua Gu Guiyang Shi 2022Systems Microbiology and Biomanufacturing2022,2,1:0
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