Brief introduction to the State Key Laboratory of Estuarine and Coastal Research (SKLEC)

The State Key Laboratory of Estuarine and Coastal Research (SKLEC) located in the East China Normal University (ECNU), Shanghai, was established on the basis of 30 years'studies on estuarine and coastal sedimentary dynamics and dynamic geomorphology at this university. Professor Chen Jiyu (an academician of Euro-Asian Academy of Sciences) and Professor Dou Guoren (an academician of Chinese Academy of Sciences, CAS) are advisors of SKLEC academic committee. Professor Wang Pingxian (an academician of CAS) is the chairman of the academic committee, and professor Shen Huanting and Professor Su Jilan (an academician of CAS) are the deputy Chairmen. There are now 14 professors, 7 associate professors, 3 lecturers, 5 technicians and 1 administrator in the Laboratory, and Professor Ding Pingxing is the director.     

Brief introduction to the State Key Laboratory for Heavy Oil Processing

The State Key Laboratory 1for Heavy Oil Processing is located in both the Beijing campus and theDongying campus (in Shandong Province) at the Petroleum University. Professor Xu Chunming is thedirector of the Laboratory. Professor Lin Shixiong is the chairman of the Academic Committee and Pro-fessor Yang Guanghua is the chairman emeritus of the Academic Committee. The Academic Committeeconsists of 14 well-known specialists, including the academicians of the Chinese Academy of Sciencesand Chinese Academy of Engineering Chen Junwu, Min Enzhe, Xu Chengen and Wang Xieqing.There are 24 faculty members, including 10 professors, 6 associate professors and senior engineers.Besides, about 30-40 graduate students are enrolled in the Laboratory and participating in researchwork.     

Dynamic Vector Space Secret Sharing Based on Certificates

A vector space secret sharing scheme based on certificates is proposed in this paper. The difficulties of solving discrete logarithm assure confidential information＇s security, and the use of each participant＇s certificate makes the dealer have no need to transfer secret information to the participants. The proposed scheme is dynamic. It can effectively check cheaters and does not have secure channel requirements.     

Finite volume methods for solving electromagnetic problems in nonhomogeneous media

This article shall review some of the recent advances on finite volume methods for solving electromagnetic problems in nonhomogeneous media. The stability, convergence and applications of the finite volume methods will be discussed. Foundation item: Supported by State Key Laboratory of Software Engineering, Wuhan University and a Direct Grant of CUHK, Hong Kong Biography: Zou Jun(1962-), male, Professor, research direction: numerical solutions of electromagnetic maxwell systems, numerical solutions of Interface problems, inverse problems, domain decomposition methods.     

A new effective strategy for treating tobacco addiction was developed by researchers from the Chinese Academy of Sciences

The tobacco addiction epidemic is a major public health problem worldwide. Professor Zhao Bao Lu and his group from the State Key Laboratory of Brain and Cognitive Science, Institute of Biophysics, Chinese Academy of Sciences set out to tackle this problem. After 20 years of innovative research, they have developed a novel tea filter to treat cigarette addiction and have discovered the molecular mechanism behind the smoking cessation effect. They identified theanine as the active ingredient in the tea filter that inhibits nicotine addiction. Their work entitled “The cessation and detoxification effect of tea filters on cigarette smoke” was published in SCIENCE CHINA Life Sciences. 2010, Vol 53(5)........     

A Novel Digital Audio Watermarking Scheme in the Wavelet Domain

We present a novel quantization-based digital audio watermarking scheme in wavelet domain. By quantizing a host audio‘s wavelet coefficients (Integer Lifting Wavelet Transform ) and utilizing the characteristics of human auditory system ( HAS), the gray image is embedded using our watermarking method. Experimental results show that the proposed watermarking scheme is inaudible and robust against various signal processing such as noising adding, lossy compression, low pass filtering, re-sampling, and re-quantifying.     

Drift analysis in studying the convergence and hitting times of evolutionary algorithms: An overview

This paper introduces drift analysis approach in studying the convergence and hitting times of evolutionary algorithms. First the methodology of drift analysis is introduced, which links evolutionary algorithms with Markov chains or supermartingales. Then the drift conditions which guarantee the convergence of evolutionary algorithms are described. And next the drift conditions which are used to estimate the hitting times of evolutionary algorithms are presented. Finally an example is given to show how to analyse hitting times of EAs by drift analysis approach. Foundation item: Supported by Engineering and Physical Science Research Courcil (GR R52541 01) and State Laboratory of Software Engineering Foundation item: Supported by Engineering and Physical Science Research Courcil (GR R52541 01) and State Laboratory of Software Engineering Biography: He Jun( 1967-), male, visiting fellow at State Key Lab of Software Engineering, Ph D. , research direction: computational intelligence     

An improved GA for combinational logic expressions

This paper discusses complete binary trees as chromosomes of Genetic Algorithm (GA), and proposes the concept of dominant and recessive genes. On the base of it, a new crossover operator with the selective ability was designed. Finally experimental results are presented. Supported by the National Natural Science Foundation of China and State Education Committee Doctoral Foundation Kang Lishan born in 1934, Professor     

An improved GA for combinational logic expressions

This paper discusses complete binary trees as chromosomes of Genetic Algorithm (GA), and proposes the concept of dominant and recessive genes. On the base of it, a new crossover operator with the selective ability was designed. Finally experimental results are presented. Supported by the National Natural Science Foundation of China and State Education Committee Doctoral Foundation Kang Lishan born in 1934, Professor     

A brief introduction to National Laboratory for Superconductivity, Institute of Physics, Chinese Academy of Sciences

In line with the rapid development of research on high-temperature superconductors, the establishment of a National Laboratory for Superconductivity in the Institute of Physics, the Chinese Academy of Sciences (CAS) was ratified by the State Commission of Development & Planning (SCDP) in 1987. The preparations were started in 1988, and in April of 1991,the Laboratory was finally established, accepted and listed as a National Laboratory open to both domestic and foreign researchers. After the joint appraisal and acceptance by the National Natural Science Foundation of China and the Ministry of Science & Technology, it was honored with a title of the Outstanding National Laboratory in 2000.     

BpMYB4基因在白桦中的遗传转化及低温胁迫应答反应

【目的】为了研究BpMYB4基因在冷胁迫反应中的功能,对其进行了白桦转化试验。【方法】采用定量PCR技术对BpMYB4基因在白桦的根、茎、叶、木质部、芽、茎段等18个组织部位的表达模式进行分析,然后克隆构建PGWB2-BpMYB4植物过表达载体,通过农杆菌介导法进行白桦合子胚的遗传转化,采用PCR和荧光定量PCR技术检测转基因白桦株系中BpMYB4基因的相对表达量,最后采用分光光度计法对BpMYB4转基因白桦进行了8项生理指标的测定。【结果】相对于芽的表达量,BpMYB4基因在第3片叶的叶脉和第1片叶与第2片叶之间嫩茎的表达量最高; 白桦的遗传转化总共获得了13个过表达株系,且BpMYB4基因已经成功整合到白桦基因组上,定量结果发现MYB-8、MYB-11、MYB-12转基因白桦中BpMYB4基因的表达量相对于非转基因对照株系(NT)上调幅度最大; 在低温胁迫下,过量表达BpMYB4基因提高了白桦的超氧化物歧化酶(SOD)活性、过氧化物酶(POD)活性、花青素(OPC)含量、过氧化氢酶活性(CAT)、可溶性糖含量、可溶性蛋白含量和脯氨酸(PRO)含量,同时降低了转基因白桦的丙二醛(MDA)的含量。【结论】BpMYB4转基因白桦在低温胁迫下能够产生具有保护作用的物质,具有一定的抵抗低温的能力,因此,可以将其培育成抗冻优选株系。     

封面人物简介—李士伦

Li Shi-lun, a Communist Party member, was born in January 1935 in Shaoxing City, Zhejiang Province, studying in Soviet Union at his early years. Professor, Doctoral Tutor. Former Vice President of Southwest Petroleum Institute, Director for "China - Canada Gas Center" , Deputy Director of the Academic Committee in the State Key Laboratory of "Oil and Gas Reservoir Geology and Exploitation" and Deputy Director of the Academic Committee in Key Laboratory of China Petroleum "Hydrocarbon Accumulation and Development". The former member of the Science and Technology Committee in Oil Industry Ministry and the consultant expert for higher education in China National Petroleum Corporation. The expert in education with outstanding contributions in oil industry, enjoying the special allowances from State Council. The academic leader in science and technology and academia in Sichuan Province. He has once served many terms as Magazine Editor and Consultant for Natural Gas Industry, Director and Editor in Chief for Journal of Southwest Petroleum University, and the Vice Director of the Natural Gas Committee of Sichuan Provincial Petroleum Institute and Measurement Institute.Professor Li Shi-lun is a domestic well-known specialist in the development of gas field and gas condensate field. For the past 50 years, he has been committed to the research on new theories, new methods and new technology for complex gas field development, research on theory, experiment and application of oil and gas phase state in gas condensate field and oil field, and technology research on improving oil recovery by gas injection. He has undertaken cooperation projects of national, provincial and ministerial and major scientific and technological for more than 70 items, and won a second prize in national scientific and technological progress, two first prize and six second and third prize in provincial and ministerial scientific and technological progress, two second prize in provincial and ministerial excellent teaching achievements. A total of eight monographs, teaching materials and translations et al has been published, including one national planning teaching material and one teaching materials for the 21st century. More than 110 articles have been published in domestic and foreign papers. Two post-doctors were guided and more than 90 Doctors and Masters were trained by Li Shi-lun.He improved cube equation of state (LHHSS Equation), led the development of mercury vicarious medium and mercury-free PVT meter, and took the lead in the research of oil and gas phase state in porous medium. Most of the results were on top at home, and some reached the international advanced level.In view of the reservoir characteristic of various and complex types and more tough producing reserves, he proposed earlier that we should develop China's enhanced oil recovery technology multivariately and by adjusting measures to local conditions. At the early 1990s, he again took the lead in the research of enhancing oil recovery by gas injection in China, cooperated with major oil fields and applied the gas injection theory and technology to China's 14 oil regions and 26 oil fields, which played the role of theoretical guidance and technical support, making significant economic and social benefits, training the talent, as well as promoting the development of China's oil field gas injection cause.He covers extensively and is knowledgeable, rigorous for study, uniting the colleague, taking care to the overall situation, exerting the advantage of the team, and a person of exemplary virtue .So he gets the respect from school and oil industry, enjoying great prestige.He was once in charge of teaching, pursued for education, cared for students and made painstaking efforts to promote the development of our school’s educational quality, subject construction, scientific research, postgraduate cause and international academic exchanges. He cares for studious students with economic poverty. Allying the schoolfellow, he sets up the "teachers’ scholarship" with private donations. He and other school leaders together won the international aid with a value of 9 million U.S. dollars and made significant contribution for projects construction of our school’s State Key Laboratory of "Oil and Gas Reservoir Geology and Exploitation", "China-Canada Gas Centre" and "Completion Center", as well as the acquirement of post-doctoral station, state key disciplines and Dr. points.     

刚毛柽柳Th2CysPrx基因的互作蛋白及其表达模式分析

【目的】使用酵母双杂交系统研究刚毛柽柳中获得的2CysPrx(硫氧还蛋白过氧化物酶)基因(命名为Th2CysPrx)及编码蛋白的功能。【方法】通过酵母双杂交系统对该基因编码蛋白的互作蛋白进行筛选,进一步利用qRT-PCR 技术分析NaCl 和PEG₆₀₀₀ 胁迫下刚毛柽柳叶组织和根部组织中Th2CysPrx 基因与其互作蛋白基因的表达模式。【结果】酵母双杂交系统筛选获得了4 个可能与Th2CysPrx 互作的蛋白,分别为丙氨酸-乙醛酸转氨酶2(alanine-glyoxylate aminotransferase 2,ThAGT2)、苹果酸脱氢酶(malate dehydrogenase,ThMDH)、黄酮醇合酶(flavonol synthase,ThFLS)和扩展蛋白(expansin,ThEXP)。基因表达分析结果显示:盐胁迫下,柽柳叶和根中,Th2CysPrx和ThAGT2 基因的表达模式基本一致; 而干旱胁迫下,Th2CysPrx和ThAGT2 基因在叶和根中具有相同的表达模式。【结论】在盐和干旱胁迫下,ThAGT2 基因与Th2CysPrx 表达模式均趋于一致,表明Th2CysPrx 基因均可能通过与ThAGT2 基因的互作共同参与抗逆过程,为进一步研究Th2CysPrx 基因的抗逆机制,以及与其他抗逆基因的关系提供了依据。     

右江盆地泥盆系硅质岩地球化学特征及地质意义

探讨右江盆地泥盆纪盆地演化。对盆地东南缘六强、那洋地区泥盆纪硅质岩地球化学特征研究表明,硅质岩的SiO_2质量分数为88.40%～97.89%,具有较高的硅化程度。多数样品具有较低的Eu/Eu~*值和较高的Al/(Al+Fe+Mn)值,指示硅质岩主要为非热液成因。上泥盆统榴江组有较明显的Ce负异常(Ce/Ce~*值为0.37～0.57),中下泥盆统平恩组和坛河组具有中等Ce负异常值(Ce/Ce~*值分别为0.55～0.57和0.55～0.71)。3组样品均具有明显的Y正异常。除去SiO_2稀释作用的影响后,榴江组硅质岩具有较高的稀土元素含量(∑REE+Y含量相当于PAAS组成的2～5倍),暗示其形成于相对远离陆源供应的环境。综合其他地区硅质岩的地球化学特征,认为泥盆纪右江盆地具有逐渐伸展的演化趋势。     

MSVM在汶马高速公路隧道围岩分级中的应用

通过分析国内外的多种围岩分级方法,结合SVM理论与隧道开挖现场实际情况,建立一种快速、准确的隧道围岩分级方法。采用岩石坚硬程度、岩体完整程度、岩体结构、节理风化状况、地下水状况、嵌合程度和地应力状况作为隧道围岩分级评价指标。采用一对一法构建多类分类器,将大量经过专家修正过的隧道围岩分级数据作为多分类SVM的训练学习样本,采用高斯核函数进行计算,结合汶马高速公路隧道施工期围岩分级实践,建立了多分类SVM隧道围岩分级模型,实现不同条件下的围岩分类的合理识别。汶马高速公路隧道围岩分级实际应用表明,该模型能快速、较为准确地进行公路隧道围岩分级。     

State Key Laboratory of Mechanical Transmission

1 General introduction The State Key Laboratory of Mechanical Transmission (SLMT), located at Chongqing University,was founded upon the approval of the State Planning Commission in 1988, and began to open to scholarsat home and abroad in August 1990 and passed the approval check in 1991. Since then, a great deal offruits have been reaped in scientific researches, personnel training and academic exchange. In 1997, itpassed the evaluation organized by the National Natural Science Foundation of China entrusted by theState Planning Commission and the State Science and Technology Commission. Now, Prof. Qin Datong isthe director of the laboratory. Academicians Lei Tianjue and Zhang Qixian are the honorary chairmen andAcademician Yang Shuzi holds the chairman post of the Laboratory' s Academic Committee which consistsof 18 famous experts in the field of mechanical engineering. There are six doctoral supervisors in the Lab-oratory: Prof. Liang Xichang, Prof. Zhang Guanghui, Prof. Li Runfang, Prof. Liu Fei, Prof. Qin Da-tong and Prof. Wei Yunlong. There are 25 permanent staff members altogether, including 20 researchers(16 with senior technical title, 4 with middle technical title), 3 technicians and 2 administrators. 2 Major research areas The main research areas of the Laboratory include: (i) basic theory and application of mechanicaltransmission, including gear geometry, failure theory, manufacturing technology, establishment of newdrive systems and design estimating systems; (ii) modem transmission theory and technology, includingcombination of mechanical transmission with new technology and high technology such as micro-electron-ics, computer, automatic controlling, etc; (iii) information and controlling of machinery and transmis-sion system such as integrated system of computer aided engineering, computer integrated manufacturingsystem, fault diagnosis and state monitoring. In recent years, 13 national key projects, 9 national hightechnology development program projects, as well as 2 key projects and 37 general projects supported bythe National Natural Science Foundation of China (NSFC) have been undertaken in the Laboratory.     

大气边界层风场模拟及测试技术的研究

总结了同济大学土木工程防灾国家重点实验室使用挡板、二元尖塔、分布粗糙元和格栅这几类模拟装置,在小、中、大三种类型风洞中模拟大气边界层流场的特性,除了纵向风场特性,还首次报道了在大气边界层风洞中测得的横向和竖向风场的特性,所得结果令人满意,最后还报道了一种新型的行人高度风环境探头。     

A measuring solution for mechanical characteristics of MO disks

Mechanical characteristics of MO disk are vital for the designer of the drives and the manufacturers who provide the mass-product MO disks. So measuring mechanical characteristics is very significant. We compares the existing measuring methods and gives some novel measuring methods we adopted in details. The measuring system based upon these methods was introduced too. Some typical measuring results are also shown in this paper. Foundation item: Supported by the State Key Technology Program in the Ninth 5-year Plan(No. 96-E01-04-03) Biography: Pei Xian-deng(1934-), male, Professor, research interests: storage system and technology etc.     

四川盆地纵向结构及原型盆地叠合特征

位于扬子克拉通西部的四川盆地在前震旦纪基底形成之后经历了多旋回构造演化,长期以来对其在不同地质历史时期的构造动力学性质、盆地类型存在争议;而理清不同时期盆地类型及其叠合特征对于上扬子克拉通盖层演化及油气勘探具有重要意义。作者利用穿过盆地的北西-南东向区域地震反射大剖面,结合钻井、野外地质、区域地质资料,对四川盆地的构造-沉积演化进行剖析,识别出5个区域不整合面,划分出5个盖层构造层,认为在纵向上形成了海相克拉通裂陷盆地(Z-S)、海相克拉通拗陷盆地(P_1l-T_2l)、海陆交互相断陷盆地(T_3x^1-T_3x^3)、陆相拗陷盆地(T_3x^4-J)、前陆盆地(K-Q)等原型盆地的有序叠合。     

川西拗陷须家河组第四段致密砂岩高岭石及其对储层物性的影响

研究川西拗陷上三叠统须家河组第四段致密砂岩中高岭石的发育特征与形成机理,探讨其对储层物性的影响。采用扫描电镜、铸体薄片、黏土矿物X射线衍射测试以及物性资料等,结果表明须四段自生高岭石呈书页状、蠕虫状,主要分布在深度小于3.8 km的须四段中上部;高岭石的形成与长石的溶蚀有关:(1)大气淡水和煤系地层酸性水使得长石在早成岩阶段发生了第一期溶蚀,形成了自生高岭石;(2)随着埋藏深度的增加和地温的升高,部分高岭石与临近的残余钾长石发生反应形成了伊利石。自生高岭石及其伴生矿物伊利石有利于须四段储层的孔隙发育;但它们阻塞了孔喉、降低了储层渗透率,不利于油气的运移。