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Cohomology structure for a Poisson algebra:Ⅱ

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Science China Mathematics 2021年第5期64卷 903-920页

作者： Yan-Hong bao yu Ye School of Mathematical Sciences Anhui UniversityHefei 230601China School of Mathematical Sciences University of Science and Technology of ChinaHefei 230026China Wu Wen-Tsun Key Laboratory of Mathematics USTCChinese Academy of SciencesHefei 230026China

For a Poisson algebra,we prove that the Poisson cohomology theory introduced by Flato et al.(1995)is given by a certain derived *** show that the(generalized)deformation quantization is equivalent to the formal deformation for Poisson algebras under certain mild *** we construct a long exact sequence,and use it to calculate the Poisson cohomology groups via the Yoneda-extension groups of certain quasi-Poisson modules and the Lie algebra cohomology groups.

关键词： Poisson algebra Poisson cohomology formal deformation deformation quantization

Ghost Imaging Using Orbital Angular Momentum

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Chinese Physics Letters 2011年第12期28卷 153-156页

作者： ZHAO Sheng-Mei DING Jian DONG xiao-Liang ZHENG bao-yu Institute of Signal Processing and Transmission Nanjing University of Posts and TelecommunicationsNanjing 210003

We present a novel encoding scheme in a ghost-imaging system using orbital angular *** the signal arm,object spatial information is encoded as a phase *** an N−grey-scale object,different phase matrices,varying from 0 toπwith incrementπ/N,are used for different greyscales,and then they are modulated to a signal beam by a spatial light *** to the conservation of the orbital angular momentum in the ghost imaging system,these changes will give different coincidence rates in measurement,and hence the object information can be extracted in the idler *** simulations and experiments,the results show that our scheme can improve the resolution of the image *** with another encoding method using orbital angular momentum,our scheme has a better performance for both characters and the image object.

关键词： ghost Ghost scheme

PI3K expression and PIK3CA mutations are related to colorectal cancer metastases

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World Journal of Gastroenterology 2012年第28期18卷 3745-3751页

作者： yu-Fen Zhu bao-Hua yu Da-Li Li Hong-Lin Ke Xian-Zhi Guo Xiu-Ying xiao Department of Oncology Shanghai Xuhui District Center HospitalShanghai 200031 China Department of Pathology Fudan University Shanghai Cancer Center Shanghai 200032 China

AIM: To assess the significance of phosphatidylinositol 3-kinase (PI3K) in colorectal cancer (CRC) and toxicity of LY294002 in CRC cells with different metastatic abilities. METHODS: Sixty formalin-fixed and paraffin-embedded CRC tumor specimens were investigated. Adjacent normal colonic mucosa specimens from 10 of these cases were selected as controls. PI3K protein was detected by immunohistochemistry and PIK3CA mutations were investigated by gene sequencing analysis. A flowcytometry-based apoptosis detection kit was used to determine PI3K inhibitor-induced apoptosis in CRC cell lines SW480 and SW620. Expression of phosphorylated protein kinase B in CRC cell lines was detected by Western blotting. RESULTS: There was a significant difference in the proportion of primary lesions (30%, 18/60) vs metastatic lesions (46.7%, 28/60) that were positive for PI3K (P A resulting in E545A, and C.3140A>G resulting in H1047R; two novel missense mutations C.1624G>A and C.3079G>A; and three synonymous mutations (C.1641G>A, C.1581C>T and C.3027T>A). Exposure of SW480 cells to PI3K inhibitor for 48 h resulted in a significant increase of apoptotic cells in a dose-dependent manner [3.2% apoptotic cells in 0 μmol/L, 4.3% in 5 μmol/L, 6.3% in 10 μmol/L (P < 0.05), and 6.7% in 20 μmol/L (P < 0.05)]. Moreover, PI3K inhibitor induced a similar significant increase of apoptotic cells in the SW620 cell line for 48 h [3.3% apoptotic cells in 0 μmol/L, 13.3% in 5 μmol/L (P < 0.01), 19.2% in 10 μmol/L (P < 0.01), and 21.3% in 20 μmol/L (P < 0.01)]. CONCLUSION: High PI3K expression is associated with CRC metastasis. PI3K inhibitor induced apoptosis in CRC cells and displayed strong cytotoxicity for highly metastatic cells. PI3K inhibition may be an effective treatment for CRC.

关键词： Colorectal cancer PI3K PIK3CA Metastasis

Lateral-profile planning:Three-dimensional-profile-based optimal trajectory generation

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Science China(Technological Sciences) 2022年第12期65卷 3057-3068页

作者： ZHANG yuanLong XIE yu bao WeiMin College of Intelligence Science and Technology National University of Defense TechnologyChangsha 410073China Science and Technology Committee of China Aerospace Science and Technology Corporation Beijing 100048China

The conventional re-entry guidance method considerably limits the maneuverability of hypersonic glide vehicles under pre-given angle-of-attack *** address this issue,based on a previous three-dimensional(3D)profile guidance method,we propose a lateral-profile-first 3D profile optimization design strategy to solve the trajectory generation problem under complex conditions involving multiple *** the traditional method,which prioritizes the design of the longitudinal drag acceleration profiles,our method first converted the re-entry flight constraints into a lateral flight corridor,generated the initial lateral profile via parameterization,and solved the 3D profile using the coupling relationship between the longitudinal and lateral *** design of the 3D profile requires simultaneous consideration of waypoints,no-fly zones,and altitude profiles;hence,a new 3D profile optimization design model was constructed,and a customized sequential quadratic programming algorithm was employed to solve *** advantages of the proposed method were demonstrated based on landing footprint results obtained using the lateral profile-first ***,simulation results based on the common aero vehicle-high-performance model verified the feasibility and effectiveness of the strategy.

关键词： hypersonic glide vehicle three-dimensional profile lateral profile-first planning optimal trajectory footprint

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Comparison of Human Papillomavirus Detection and Genotyping with Four Different Prime Sets by PCR-Sequencing

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Biomedical and Environmental Sciences 2013年第1期26卷 40-47页

作者： CAI yu Pin YANG Yi ZHU bao Li LI yuan XIA xiao yu ZHANG Rui Fen XIANG Yang CAS Key Laboratory of Pathogenic Microbiology & Immunology Institute of Microbiologythe Chinese Academy of Sciences Graduate University of the Chinese Academy of Sciences Department of Obstetrics and Gynecology Peking Union Medical College HospitalPeking Union Medical College and the Chinese Academy of Medical Sciences

Objective To assess and compare the Human Papillomavirus（HPV） detection efficiency and the potential clinical utility of PCR sequencing‐based *** Four HPV consensus primer sets（GP5＋/6＋,MGP,MY09/11,and PGMY09/11） were used in order to amplify a broad spectrum of HPV types for HPV infection in 325 cervical samples and the PCR products were sequenced afterwards for the HPV *** The HPV‐positive rate was 75.4%,of which 35.5% harbored more than one HPV genotype.A total of 36 different genotypes was found,with HPV 16（24.1%） being the most prevalent,followed by HPV 58（13.3%） and HPV 52（9.6%）.There were substantial to almost perfect agreements between different primer sets regarding HPV detection efficiency,with the kappa value varying from 0.751 to 0.925,MGP,and PGMY09/11 were the most effective in detecting multiple infections（P0.001）.With each of the primer sets,a board range of HPV types could be identified,though there were several differences for a few *** The substantial agreement between PCR‐sequencing and HC2 for the detection of high‐risk HPV（kappa=0.761） indicated that PCR‐sequencing is also suitable for routine HPV screening.

关键词： Human papillomavirus Cervical cancer Polymerase chain reaction DNA sequencing

EXPONENTIAL STABILITY OF LINEAR DISTRIBUTED PARAMETER SWITCHED SYSTEMS WITH TIME-DELAY

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Journal of Systems Science & Complexity 2014年第2期27卷 263-275页

作者： bao Leping FEI Shumin yu Lei The School of Automation and Key Laboratory of Measurement and Control of Complex Systems of Engineer-ing Southeast University The School of Mechanical and Electric Engineering Soochow University

In this paper, the exponential stability analysis for ODE switched systems with time delay is extended to distributed parameter switched systems(DPSS) in Hilbert space. For a given family of exponential stable subsystems, this paper focuses on finding conditions to guarantee the overall DPSS' exponential stability. Based on semigroup theory, by applying piecewise Lyapunov-Krasovskii functionals method incorporated average dwell time approach, sufficient conditions for exponential stability are derived. These conditions are given in the form of linear operator inequalities(LOIs)where the decision variables are operators in Hilbert space, and the stability properties depend on switching rule. Being applied to heat switched propagation equations, these LOIs are reduced to standard Linear Matrix Inequalities(LMIs). Finally, a numerical example is given to illustrate the effectiveness of the proposed result.

关键词： Exponential stability LMIs PDEs on abstract space switched systems.

Adsorption of uranium(Ⅵ) onto amidoxime-functionalized ultrahigh molecular weight polyethylene fibers from aqueous solution

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Nuclear Science and Techniques 2017年第7期28卷 97-104页

作者： Chun-yu Xie Shi-Pei Jing yu Wang xiao Lin Hong-Liang bao Cheng-Zhi Guan Chan Jin Jian-Qiang Wang Shanghai Institute of Applied Physics Chinese Academy of Sciences Shanghai 201800 China University of Chinese Academy of Sciences Beijing 100049China

Amidoxime-functionalized ultra-high molecular weight polyethylene fibers(UHMWPEF-AO) were used to absorb uranium U(VI) from aqueous *** this paper,we study effects of pH,initial U(VI) concentration,contact time,and temperature on U(VI) adsorption by *** adsorption process agrees well with pseudo-second-order and Langmuir *** exhibits excellent adsorptive performance for U(VI)with a maximum adsorption capacity of 176.12 mg/g at pH4 and 298 *** structures of UHMWPEF-AO and U(VI)-loaded UHMWPEF-AO are characterized by FT-IR and nano-CT.U(VI)-loaded UHMWPEF-AO is sintered after adsorption process to recycle absorbed U(VI).Powders collected after sintering process are examined by scanning electron microscopy and X-ray *** results indicate that UHMWPEF-AO is a promising candidate to remove U(VI) from uranium aqueous solutions.

关键词：超高分子量聚乙烯纤维吸附性能偕胺肟基铀(Ⅵ) 水溶液扫描电子显微镜烧结过程 FT-IR

Measuring Class Cohesion Based on Dependence Analysis

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Journal of Computer Science & Technology 2004年第6期19卷 859-866页

作者： Zhen-QiangChen bao-WenXu yu-MingZhou DepartmentofComputerScienceandEngineering SoutheastUniversityNanjing210096P.R.China StateKeyLaboratoryofSoftwareEngineering WuhanUniversityWuhan430072P.R.China JiangsuInstituteofSoftwareQuality Nanjing210096P.R.China

Classes are the basic modules in object-oriented (OO) software, which consist of attributes and methods. Thus, in OO environment, the cohesion is mainly about the tightness of the attributes and methods of classes. This paper discusses the relationships between attributes and attributes, attributes and methods, methods and methods of a class based on dependence analysis. Then the paper presents methods to compute these dependencies. Based on these, the paper proposes a method to measure the class cohesion, which satisfies the properties that a good measurement should have. The approach overcomes the limitations of previous class cohesion measures, which consider only one or two of the three relationships in a class. Keywords cohesion - object-orientation - class - program complexity - dependence analysis Supported by the National Natural Science Foundation of China under Grant No.60073012; the National Basic Research 973 Program of China under Grant No.2002CB312000; the Program for Cross-Century Outstanding Teachers of the Ministry of Education; the National Research Foundation for the Doctoral Program of Higher Education of China under Grant No.20020286004; the Natural Science Foundation of Jiangsu, China, under Grant ***2001004; the Jiangsu Key Science and Technology Project under Grant ***2001025; the Opening Foundation of State Key Laboratory of Software Engineering in Wuhan University; the Opening Foundation of Jiangsu Key Laboratory of Computer Information Processing Technology in Soochow University.Zheng-Qiang Chen was born in 1976. He received the M.S. and Ph.D. degrees in computer science in 2000 and 2003, respectively. His current research interests include program analysis, understanding and testing as well as other topics related to reverse engineering. He has published more than 30 technical papers.bao-Wen Xu was born in 1961. He received the M.S. and Ph.D. degrees in computer science in 1984 and 2002, respectively. He is a professor in the

关键词： cohesion object-orientation class program complexity dependence analysis

Crystal and Molecular Structure of an Inclusion Complex of p-tert-Butylcalix[6]arene with Toluene

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Chemical Research in Chinese Universities 1999年第1期15卷 3-6页

作者： LU Tong-bu LI xiao-yan JI Liang-nian HAN bao-hang LIU yu yu Kai-bei Department of Chemistry and Center of Measurement Zhongshan UniversityGuangzhou510275 Department of Chemistry Nankai UniversityTianjin300071 Chengd u Center of Analysis a nd Mea surement Aca demia SinicaChengdu610041

An inclusion complex between p-tert-butylcalixarene and toluene was prepared. It crystallized in the monoclinic system with space group P 2 1/ n , a =1.734 7(2) nm, b =1.903 2(2) nm, c =1.972 9(2) nm , β =94.74(1)°, V =6.491 2(14) nm 3, Z =4. The toluene molecule was included in the macrocycle cavity. The calixanene is of a pinched cone conformation.

关键词： p-tert-Butylcalixarene Toluene Inclusion complex