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中国高技术产业研发创新效率研究——基于资源约束型两阶段DEA模型的新视角

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系统工程理论与实践 2014年第5期34卷 1202-1212页

作者：冯志军陈伟东莞理工学院工商管理学院东莞523808 哈尔滨工程大学经济管理学院哈尔滨150001

针对传统数据包络分析(DEA)模型的不足,结合高技术产业研发创新过程的特征,将其研发创新过程分解为技术开发和经济转化两个前后相续的子阶段,考虑"子阶段之间的关联关系"和"初始投入在两个子阶段间的分配结构",构建了资源约束型两阶段DE... 详细信息

针对传统数据包络分析(DEA)模型的不足,结合高技术产业研发创新过程的特征,将其研发创新过程分解为技术开发和经济转化两个前后相续的子阶段,考虑"子阶段之间的关联关系"和"初始投入在两个子阶段间的分配结构",构建了资源约束型两阶段DEA模型,从而实现了对高技术产业研发创新效率测算方法的改进,运用该模型实证测评了中国高技术产业17个细分行业研发创新的整体及各子阶段的效率,并同时得到初始投入的配置信息.与现有研究相比,该模型突破了传统DEA模型无视高技术产业研发创新系统内部组织结构的限制.实证结果表明:中国高技术产业17个细分行业不论是从研发创新整体上,还是从研发创新的两个子阶段,效率值都偏低,均有很大的提升空间;根据高技术产业研发创新两阶段效率矩阵图可知,除了电子计算机外部设备制造业等3个细分行业属于高效集约型研发创新,大部分行业表现为两个子阶段效率双差或一强一差;根据17个细分行业所隶属的5个产业大类来分析,电子计算机及办公设备制造业研发创新过程的整体效率最高、航空航天器制造业最低.

关键词：高技术产业研发创新效率两阶段DEA模型资源约束效率矩阵图

Role of long non-coding RNAs in gene regulation and oncogenesis

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Chinese Medical Journal 2011年第15期124卷 2378-2383页

作者： PAN Yan-feng feng Lei ZHANG Xian-qiang SONG Li-jie LIANG Hong-xia LI zhi-qin TAO feng-bao Department of Infectious Disease the First Hospital Affiliated to Zhengzhou University Zhengzhou Henan 450000 China

Objective This article aims to review recent studies on the biological characteristics of long non-coding RNAs （IncRNAs）, transcription regulation by IncRNAs, and the results of recent studies on the mechanism of action of IncRNAs in tumor development. Data sources The data cited in this review were mainly obtained from the articles listed in PubMed and HighWire that were published from January 2002 to June 2010. The search terms were ＂long non-coding RNA＂, ＂gene regulation＂, and ＂tumor＂. Study selection The mechanism of IncRNAs in gene expression regulation, and tumors concerned with IncRNAs and the role of IncRNAs in oncogenesis. Results IncRNAs play an important role in transcription control, and post-transcriptional controlling. IncRNAs are suppressing and promoting factors. regulation by controlling chromatin remodeling, transcriptional involved in many kinds of tumors and play key roles as both Conclusion IncRNAs could perfectly regulate the balance of gene expression system and play important roles in oncogenic cellular transformation.

关键词： long non-coding RNA gene regulation cancer

Neuroendoscopic Evaluation and Treatment for Cerebral Ventricular Infection

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Chinese Medical Journal 2018年第17期131卷 2114-2116页

作者： feng Guan Hui Huang Zu-Yuan Ren Zhen-Yu Wang Ji-Di Fu Ying-Bin Li feng-qi Cui Wei-Cheng Peng Bin Dai Guang-Tong Zhu zhi-Yong Xiao Bei-Bei Mao zhi-qiang Hu Department of Neurosurgery Beijing Shijitan Hospital Capital Medical University Beijing 100038 China Department of Neurosurgery Peking Union Medical College Hospital Beijing 100032 China Department of Neurosurgery Peking University Third Hospital Peking University Beijing 100191 China Department of Neurosurgery Beijing Tongren Hospital Capital Medical University Beijing 100730 China Department of Neurosurgery The Second Affiliated Hospital of Nanjing Medical University Nanjing 210000 China Department of Neurosurgery Beijing Liangxiang Hospital Beijing 102401 China

To the Editor： Cerebral ventricular infection （CVI）, also termed ependymitis, involves an inflammatory response in the cerebral ventricular system. CVI is characterized by leukocytosis in tile cerebrospinal fluid （CSF）, a positive culture result of pathogenic bacteria, and imaging changes in tile ventricles.

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Exploring relations between city regions based on mobile phone data

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Journal of Central South University 2016年第7期23卷 1799-1806页

作者：汪烁枫李志恒姜山谢娜 Department of Automation Tsinghua University Graduate School at Shenzhen Tsinghua University School of Management Science and Engineering Central University of Finance and Economics

City regions often have great diversity in form and function. To better understand the role of each region, the relations between city regions need to be carefully studied. In this work, the human mobility relations between regions of Shanghai based on mobile phone data is explored. By formulating the regions as nodes in a network and the commuting between each pair of regions as link weights, the distribution of nodes degree, and spatial structures of communities in this relation network are studied. Statistics show that regions locate in urban centers and traffic hubs have significantly larger degrees. Moreover, two kinds of spatial structures of communities are found. In most communities, nodes are spatially neighboring. However, in the communities that cover traffic hubs, nodes often locate along corridors.

关键词： mobile phone data city relations community degree

Mg-39Pb-11.5Al-1B-0.4Sc合金在3.5%NaX(X=F,Cl,Br,I)溶液中的腐蚀行为

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Transactions of Nonferrous Metals Society of China 2023年第7期33卷 2030-2043页

作者：冯芷琪孙缘段永华起华荣彭明军昆明理工大学材料科学与工程学院昆明650093

采用熔融法制备Mg−39Pb−11.5Al−1B−0.4Sc合金,并利用X射线衍射仪(XRD)、扫描电子显微镜(SEM)、极化曲线测试和电化学阻抗谱(EIS)分析合金在3.5%(质量分数)NaX(X=F,Cl,Br,I)溶液中的腐蚀行为和机理。结果表明,Mg−39Pb−11.5Al−1B合金的组... 详细信息

采用熔融法制备Mg−39Pb−11.5Al−1B−0.4Sc合金,并利用X射线衍射仪(XRD)、扫描电子显微镜(SEM)、极化曲线测试和电化学阻抗谱(EIS)分析合金在3.5%(质量分数)NaX(X=F,Cl,Br,I)溶液中的腐蚀行为和机理。结果表明,Mg−39Pb−11.5Al−1B合金的组成相为α-Mg、Mg_(2)Pb、Mg_(17)Al_(12)和AlB_(2)。Sc的加入可以显著细化显微组织。Mg−39Pb−11.5Al−1B−0.4Sc合金在NaX溶液中的耐腐蚀性顺序为NaCl

关键词： Mg-39Pb-11.5Al-1B-0.4Sc合金卤素溶液极化曲线电化学阻抗谱显微组织耐腐蚀性

Active phase morphology engineering of NiMo/Al2O3 through La introduction for boosting hydrodesulfurization of 4,6-DMDBT

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Petroleum Science 2023年第2期20卷 1231-1237页

作者： Ji-Xing Liu Xiang-qi Liu Ri-Xin Yan Ling-feng Ji Hui-Fang Cheng Hui Liu Yan Huang Ming-qing Hua Hua-Ming Li Wen-Shuai Zhu School of Chemistry and Chemical Engineering and Institute for Energy Research Jiangsu UniversityZhenjiangJiangsu 212013China State Key Laboratory of Heavy Oil Processing and Beijing Key Lab of Oil&Gas Pollution Control China University of PetroleumBeijing 102249China State Key Laboratory of Fine Chemicals Dalian University of TechnologyDalianLiaoning 116024China

Herein,we designed and constructed a mesoporous LaAlOx via a solvent evaporation induced self-assembly *** structure and physicochemical property of the corresponding NiMo supported catalyst was analyzed by a set of characterizations,and its catalytic activity was investigated for hydrodesulfurization(HDS)of 4,*** has confirmed that the incorporation of La profoundly facilitate the generation of“Type II”NiMoS phase by weakening the interaction of Mo–O–Al leakage and promoting the sulfidation of both Ni and Mo oxides as well as changing the morphology of Ni promoted MoS2 slabs,thereafter boosting the HDS performance *** finding here may contribute to the fundamental understanding of structure-activity in ultra-deep desulfurization and inspire the advancement of highly-efficient HDS catalyst in future.

关键词： NiMo supported Catalyst LaAlOx composites Hydrodesulfurization Morphology Reaction kinetics

Spin-orbit coupling adjusting topological superfluid of mass-imbalanced Fermi gas

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Chinese Physics B 2022年第9期31卷 208-216页

作者： Jian feng Wei-Wei Zhang Liang-Wei Lin qi-Peng Cai Yi-Cai Zhang Sheng-Can Ma Chao-Fei Liu School of Science Jiangxi University of Science and TechnologyGanzhou 341000China School of Physics and Electronic Engineering Guangzhou UniversityGuangzhou 510006China

Topological superfluid state is different from the normal superfluid one due to the excitation energy gap on the *** to obtain the topological superfluid state by using spin-orbit coupling to control the s-waves paired mass-imbalanced Fermi gas is a recent novel *** this paper,we study the topological superfluid phase diagram of two-dimensional mass-imbalanced Fermi gas with Rashba spin-orbit coupling at zero *** find that due to the competition among mass imbalance,pairing interaction and spin-orbit coupling,there is a double-well structure in the thermodynamic potential,which affects the properties of the ground state of the *** comprehensively give the phase diagrams of the system on the plane of spin-orbit coupling and chemical potential,and the phase diagrams on the plane of the reduced mass ratio and two-body binding *** study not only points out the stable region of topolog-ical superfluid state of mass-imbalanced Fermi gas,but also provides a detailed theoretical basis for better observation of topological superfluid state in experiments.

关键词： topological superfluid mass-imbalanced spin-orbit coupling Fermi gas

Micro-failure process and failure mechanism of brittle rock under uniaxial compression using continuous real-time wave velocity measurement

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Journal of Central South University 2021年第2期28卷 556-571页

作者： WU zhi-jun WANG zhi-yang FAN Li-feng WENG Lei LIU Quan-sheng School of Civil Engineering Wuhan UniversityWuhan 430072China College of Architecture and Civil Engineering Beijing University of TechnologyBeijing 100124China

In this study,the micro-failure process and failure mechanism of a typical brittle rock under uniaxial compression are investigated via continuous real-time measurement of wave *** experimental results indicate that the evolutions of wave velocities became progressively anisotropic under uniaxial loading due to the direction-dependent development of micro-damage.A wave velocity model considering the inner anisotropic crack evolution is proposed to accurately describe the variations of wave velocities during uniaxial compression *** on which,the effective elastic parameters are inferred by a transverse isotropic constitutive model,and the evolutions of the crack density are inversed using a self-consistent damage *** is found that the propagation of axial cracks dominates the failure process of brittle rock under uniaxial loading and oblique shear cracks develop with the appearance of macrocrack.

关键词： elastic wave velocity brittle rock failure uniaxial compression test continuous real-time measurement anisotropic damage evolution theory and modelling

Developmental expression of three prmt genes in Xenopus

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Zoological Research 2019年第2期40卷 102-107页

作者： Cheng-Dong Wang Xiao-Fang Guo Thomas Chi Bun Wong Hui Wang Xu-feng qi Dong-qing Cai Yi Deng Hui Zhao Key Laboratory for Regenerative Medicine Ministry of EducationSchool of Biomedical Sciences Faculty of Medicine The Chinese University of Hong Kong Key Laboratory for Regenerative Medicine of Ministry of Medicine of Ministry of Education Jinan University Department of Developmental & Regenerative Biology College of Life Science and Technology Jinan University Guangdong Provincial Key Laboratory of Cell Microenvironment Department of Biology South University of Science and Technology of China Kunming Institute of Zoology Chinese Academy of Sciences-The Chinese University of Hong Kong Joint Laboratory of Bioresources and Molecular Research of Common Diseases

DEAR EDITOR Protein arginine methyltransferases (PRMTs)are involved in many cellular processes via the arginine methylation of histone or non-histone *** examined the expression patterns of prmt4,prmt7,and prmt9 during embryogenesis in Xenopus using whole-mount in situ hybridization and quantitative reverse transcription polymerase chain reaction (RT-PCR).Xenopus prmt4 and prmt7 were expressed in the neural crest,brain,and spinal cord,and also detected in the eye,branchial arches,and heart at the tailbud *** print9 signals were not detected in Xenopus embryos until the late tailbud stage when weak expression was observed in the branchial *** RT-PCR indicated that the expression of prmt4 and prmt7 was up-regulated during the neurula stage,whereas prmt9 maintained its low expression until the late tailbud stage,consistent with the whole-mount in situ hybridization ***,the developmental expression patterns of these three print genes in Xenopus embryos provide a basis for further functional study of such genes.

关键词： Developmental expression prmt genes Xenopus