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Cellular automata modelling of grain coarsening during reheating——Ⅱ. Abnormal grain growth

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journal of University of Science and Technology Beijing 2005年第1期12卷 26-32页

作者： WanhuaYu e.j.Palmiere S.P.Banks jingtaoHan DepartmentofMaterialsengineering UniversityofScienceandTechnologyBeijingBeijing100083China DepartmentofengineeringMaterials UniversityofSheffieldS13JDSheffieldUK DepartmentofAutomaticControlandSystemsengineering UniversityofSheffieldS13JDSheffieldUK

The 2-dimensional cellular automata (CA) simulation technique has been utilized to investigate the abnormal grain coarsening. The growth of abnormal grains is modelled under this assumption that different grains have different boundary energies and boundary mobilities. As temperature increases, some grains may first get rid of the particle pinning effect. Thus a high probability is obtained for atoms to jump over the boundary, so that they can consume other primary retained grains quickly. From the simulation, the characteristics of the abnormal grain coarsening under different conditions are demonstrated successfully. An experiment has also been carried out to reflect the abnormal grain coarsening on the microalloy steel. Simulation results are quite close to the experimental evidence.

关键词： computer simulation grain growth microstructure reheating

New　Application　of　bond　Function　Basis　Sets──ab　initio　Calculations　of　Nonlinear　Optical　Properties　

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Chemical Research in Chinese Universities 1997年第3期13卷 235-239页

作者： Li Zhi-ru, TAO Fu-ming, PAN Yuh-kang., FeNG ji-kang, WU Di., HUANG Xu-rid , SUN Ghia-Chung.(Department of Chemistry, jilin University, Changchun, 130023 , CAina b $$Department of Chemistry, Harvard University, Chmberidge,MA 02138 , USA/Department of Chem jILIN UNIV DEPT CHEMCHANGCHUN 130023PEOPLES R CHINA HARVARD UNIV DEPT CHEMCAMBRIDGEMA 02138 BOSTON COLL DEPT CHEMCHESTNUT HILLMA 02167 jILIN UNIV INST THEORET CHEMCHANGCHUN 130023PEOPLES R CHINA

On the basis of adding the bond functions (3s 3p 2d) to the basis sets 6-311G ( 2d 2p ) for increasing the efficiency of the basis sets , we have carried out the MP2 calculations of nonlinear optical properties includintg dipole moment uo,polarizibili- ty ao and hyperpolarizability , for CH4-nFn (n = 1 , 2 , 3). The results are in good a- greement with those of experimentsl The roles of the bond functions in the calcula- tions are shown , i. e., the improved values of the properties are about 2%-7% at the SCF level and about 6%-30% at the correlated level (MP2). It is shown that the more important role of the bond functions in calculating is the im- provement of the effects of the corrections of electronic correlations and the increase of the effects is in the order of. In addition , it is also shown that the cal-, culated value of a property does not change with the bond-function location in our calculations except for the regions close to the nuclei in a molecule.

关键词： Bond function MP2 Nonlinear optical property

CONTROL OF CANCeR PAIN TO eNSURe THe BeST POSSIBLe QUALITY OF LIFe

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journal of Traditional Chinese Medicine 1992年第4期12卷 243-255页

作者： G Q Yu j X Liu P W Li j X Qin e X Yu L M Liu L C Wu M H Shen W S Zhou M M Li Guang An Men Hospital China Academy of Traditional Chinese Medicine Beijing.

Yu Guiqing 余桂清(Guang An Men Hospi-tal,China Academy of Traditional ChineseMedicine,Beijng 100053)The therapeutic strategy regarding can-cer pain is first to get rid of the causes ofpain with anticancer treatment so... 详细信息

关键词： Radix materia stasis anticancer verity herbal 田螺膏 relieve 黑龙丹大黄度虫丸

Autophagy gets in on the regulatory act

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分子细胞生物学报:英文版 2011年第2期3卷 76-77页

作者： Steven K.Backues Daniel j.Klionsky Life Sciences Institute University of MichiganAnn ArborMI 48109-2216USA

Autophagy down-regulates the Wnt signal transduction pathway via targeted degradation of a key signaling *** may provide an explanation for autophagy’s role in tumor *** eukaryotic cell has at its disposal two primar... 详细信息

关键词： Autophagy targeted explanation

Optimal Coordinated Operation of Distributed Static Series Compensators for Wide-area Network Congestion Relief

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journal of Modern Power Systems and Clean energy 2022年第5期10卷 1374-1384页

作者： Camilo Andres Ordonez M Antonio Gomez-exposito Guillermo eVinasco M jose Maria Maza-Ortega Ieee Smart Wires Union CityUSA Department of electrical engineering University of SevilleSevillaSpain Interconexion electrica SA Intercolombia Sevilla Spain

Relieving network congestions is a critical goal for the safe and flexible operation of modern power systems, especially in the presence of intermittent renewables or distributed generation. This paper deals with the real-time coordinated operation of distributed static series compensators(DSSCs) to remove network congestions by suitable modifications of the branch reactance. Several objective functions are considered and discussed to minimize the number of the devices involved in the control actions, the total losses or the total reactive power exchanged, leading to a non-convex mixed-integer non-linear programming problem. Then, a heuristic methodology combining the solution of a regular NLP with k-means clustering algorithm is proposed to get rid of the binary variables, in an attempt to reduce the computational cost. The proposed coordinated operation strategy of the DSSCs is tested on several benchmark systems, providing feasible and sufficiently optimal solutions in a reasonable time frame for practical systems.

关键词： Distributed static series compensation(DSSC) flexible AC transmission system(FACTS) mixed-integer non-linear programming(MINLP) wide-area network control

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殖民统治下的原左翼作家:古丁与山田清三郎

国际比较文学（中英文） 2023年第4期6卷 127-143页

作者：梅定娥南京邮电大学

原中国左联北方部成员古丁,曾翻译过日本普罗文学作品,包括以无产阶级国际主义为主题的小说。面对日本殖民者积极推行的殖民共同体建设,古丁以拒绝殖民符号暴力,捍卫“汉话”主体性;拒绝殖民文学理念,坚持描写阴暗内容等方式进行抵抗;... 详细信息

原中国左联北方部成员古丁,曾翻译过日本普罗文学作品,包括以无产阶级国际主义为主题的小说。面对日本殖民者积极推行的殖民共同体建设,古丁以拒绝殖民符号暴力,捍卫“汉话”主体性;拒绝殖民文学理念,坚持描写阴暗内容等方式进行抵抗;批判日本文坛战争报告文学、反对日本读者猎奇视野;重视与日本原左翼文化人的国际连带,守护中国文化的主体性。一方面,假释出狱的山田清三郎来到“满洲”寻求“新生”。从开拓团到“新京”,他仍然摆脱不了“转向”的心理阴影和作为思想犯被跟踪、被“观察”的命运。然而,他却得到了古丁等“满人”作家的“友情”和鼓励。山田清三郎对“满人”作家的处境和文学不仅表现出理解,还为此在报纸上公开与日本人骂战。不过,山田对“民族协和”也表现出赞扬和期待,这很难界定是源于国际主义精神还是对殖民侵略的赞同。然而在战时体制下,山田清三郎被殖民者利用,成为艺文家协会委员长,与古丁一起承担起战时文艺宣传和组织活动,最终进入角色成了殖民者中的一员。古丁在妥协的同时,努力实现自己守护中国文化的目的。在1944年时,他举着殖民者“炼磨思想”的口号呼吁青年炼磨技术,其实是在为光复后东北的技术管理做准备。古丁在伪满洲国的行动,提示了面对殖民统治时除了抵抗、逃避和合作以外的第四种可能性。

关键词：古丁山田清三郎左翼作家与殖民统治伪满洲国

High Security for De-Duplicated Big Data Using Optimal SIMON Cipher

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Computers, Materials & Continua 2021年第5期67卷 1863-1879页

作者： A.Muthumari j.Banumathi S.Rajasekaran P.Vijayakarthik K.Shankar Irina V.Pustokhina Denis A.Pustokhin Department of Computer Science and engineering University College of EngineeringRamanathapuram623513India Department of Information Technology University College of EngineeringNagercoil629004India Department of eee PSN College of Engineering(Anna University)Tirunelveli627152India Department of Information Science and engineering Sir M.Visvesvaraya Institute of TechnologyBangalore56215India Department of Computer Applications Alagappa UniversityKaraikudi63003India Department of entrepreneurship and Logistics Plekhanov Russian University of EconomicsMoscow117997Russia Department of Logistics State University of ManagementMoscow109542Russia

Cloud computing offers internet location-based affordable,scalable,and independent *** computing is a promising and a cost-effective approach that supports big data analytics and advanced applications in the event of forced business continuity events,for instance,pandemic *** handle massive information,clusters of servers are required to assist the equipment which enables streamlining the widespread quantity of data,with elevated velocity and modified *** deduplication model enables cloud users to efficiently manage their cloud storage space by getting rid of redundant data stored in the *** deduplication also saves network *** this paper,a new cloud-based big data security technique utilizing dual encryption is *** clustering model is utilized to analyze the Deduplication process hash *** kernel Fuzzy C means(MKFCM)was used which helps cluster the data stored in cloud,on the basis of confidence data encryption *** confidence finest data is implemented in homomorphic encryption data wherein the Optimal SIMON Cipher(OSC)technique is *** security process involving dual encryption with the optimization model develops the productivity *** this paper,the excellence of the technique was confirmed by comparing the proposed technique with other encryption and clustering *** results proved that the proposed technique achieved maximum accuracy and minimum encryption time.

关键词： Cloud security deduplication clustering optimization big data dual encryption

Carbon dioxide:a renewable feedstock for the synthesis of fine and bulk chemicals

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Frontiers of Chemical Science and engineering 2010年第2期4卷 213-235页

作者： Yogesh P.PATIL Pawan j.TAMBADe Sachin R.jAGTAP Bhalchandra M.BHANAGe Institute of Chemical Technology(Autonomous) N.Parekh MargMatungaMumbai-400019India

The syntheses of carbon dioxide(CO_(2))based industrially important chemicals have gained considerable interest in view of the sustainable chemistry and“green chemistry”*** this review,recent developments in the chemical fixation of CO_(2)to valuable chemicals are *** synthesis of five-member cyclic carbonates via,cycloaddition of CO_(2)to epoxides is one of the promising reactions replacing the existing poisonous phosgene-based synthetic *** review focuses on the synthesis of cyclic carbonates,vinyl carbamates,and quinazoline-2,4(1H,3H)-diones via reaction of CO_(2)and epoxide,amines/phenyl acetylene,2-aminobenzinitrile and other *** synthesis of dimethyl carbonate,1,3-disubstituted urea and 2-oxazolidinones/2-imidazolidinones have limitations at present because of the reaction equilibrium and chemical inertness of CO_(2).The preferred alternatives for their synthesis like transesterification of ethylene carbonate with methanol,transamination of ethylene carbonate with primary amine and transamination reaction of ethylene carbonate with diamines/β-aminoalcohols are *** methodologies offer marked improvements for greener chemical fixation of CO_(2)in to industrially important chemicals.

关键词： carbon dioxide catalysts industrial important chemicals organic carbonates green chemistry urea synthesis

A Proposal for Mitigating Multiple Black-Hole Attack in Wireless Mesh Networks

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Wireless Sensor Network 2013年第4期5卷 76-83页

作者： Om Shree Francis j. Ogwu Computer Science Department University of Botswana Gaborone Botswana

The Network Layer in wireless mesh networks is responsible for routing packets making it a prime target for intruders and hackers. Black-hole attack is a type of denial-of-service attack which when carried out can disrupt the services of this layer. This paper takes a look at some important detection and mitigation techniques and presents the drawbacks. After analysis of current mechanisms, the paper proposes rid-AODV, a security solution for multiple black-hole attack in wireless mesh networks. Based on the backbone of AODV, rid-AODV combines the ability of route skipping of IDSAODV and route failure correction using reverse route establishment of RAODV. The enhanced protocol rid-AODV, AODV, IDSAODV, and RAODV are implemented in a simulated environment using ns-2.35 simulator. The networks for each protocol are bombarded with up to ten black-hole nodes starting from zero. The results obtained are then analyzed and compared and a discussion is presented.

关键词： Mobile Ad-Hoc Network Wireless Mesh Networks Ad-Hoc On-Demand Distance Vector Black-Hole RADOV IDSAODV rid-AODV