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Autonomous Domain Correlation-Based Cross-domain Network View Caching Method for SDN Distributed Controller

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Chinese Journal of Electronics 2016年第6期25卷 1127-1133页

作者： FU Tao HU Liang chai sheng CHE Xilong College of Computer Science and Technology Jilin University Key Laboratory of Symbolic Computing and Knowledge Engineering of Ministry of Education Jilin University

Software-defined networks(SDN) maintain a global view of the network, thus improving the intelligence of forwarding decisions. With the expansion of the network scale, distributed controllers are used in a variety of large-scale networks in which subnetworks managed by controller instance are called autonomous domains. We analyze statistic frequency of communication across the autonomous domain. We calculate the autonomous domain correlations for controller instances using acquired statistical information. We cache network views to highly correlated controller instances. Distributed controllers are capable of considering both the average response time and overall storage. An experiment shows that our method can fully take advantage of these two performance indicators.

关键词： Software-defined networks(SDN) Distributed controller Network analyze Network view cache

SPHLU:An Efficient Algorithm for Processing PRkNN Queries on Uncertain Data

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Chinese Journal of Electronics 2016年第3期25卷 403-406页

作者： WANG shengsheng LI Yang chai sheng BOLOU Bolou Dickson College of Computer Science and Technology Key Laboratory of Symbolic Computing and Knowledge Engineering of Ministry of EducationJilin University

Query on uncertain data has received much attention in recent years, especially with the development of Location-based services(LBS). Little research is focused on reverse k nearest neighbor queries on uncertain data. We study the Probabilistic reverse k nearest neighbor(PRkN N) queries on uncertain data. It is succinctly shown that, PRkN N query retrieves all the points that have higher probabilities than a given threshold value to be the Reverse k-nearest neighbor(RkN N) of query data *** previous works on this topic mostly process with k > *** algorithms allow the cases for k > 1, but the efficiency is inefficient especially for large k. We propose an efficient pruning algorithm — Spatial pruning heuristic with louer and upper bound(SPHLU) for solving the PRkN N queries for k > 1. The experimental results demonstrate that our algorithm is even more efficient than the existent algorithms especial for a large value of k.

关键词： Spatial database Uncertain data R-tree Probabilistic reverse k nearest neighbor queries

Effect of Sm-doping on the morphology and magnetic properties of radio frequency magnetron sputtered Ni-Mn-Ga films

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International Journal of Minerals,Metallurgy and Materials 2012年第6期19卷 555-560页

作者： Feng-hua Chen Min-gang Zhang Yue-sheng chai Chang-wei Gong College of Materials Science and Engineering Taiyuan University of Science and Technology Talyuan 030024 China

Ni55.5Mn21Ga23.5 and Ni54Mn22Ga23Sml films were prepared by radio frequency （RF） magnetron sputtering. The effect of Sm do- pant on the morphologic and magnetic properties of Ni55.5Mn21Ga23.5 films was investigated. Sm doping can refine the particle size of the films from 100 to 60 nm, and further grain growth is not occurs even after annealing at 1073 K for 3.6 ks. Compared to Ni55.5Mn21Ga23.5 films, Sm-doped Ni54Mn22Ga23Sml films are easier to be magnetized and have a lower martensitic transformation temperature. In addition, the Curie temperature can also be adjusted, decreasing from 350 to 325 K after Sm doping. Martensitic transformation is not observed in the Sm-free films, which is close to the Curie temperature in the Sm-doped films, giving rise to the overlap of the structural and magnetic transi- tion temperatures.

关键词： magnetic films samarium doping magnetron sputtering martensitic transformation magnetic transition temperature magneticproperties rare earths

Degradation research of protective coating on AZ91D Mg alloy components via simulated contamination

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Journal of Magnesium and Alloys 2016年第3期4卷 220-229页

作者： Bao-sheng Liu Ya-fei Kuang Yue-sheng chai Da-qing Fang Min-gang Zhang Ying-hui Wei College of Materials Science and Engineering Taiyuan University of Science and TechnologyTaiyuanShanxi 030024China Engineering Research Center for Magnesium Alloys of Shanxi Province Taiyuan University of Science and TechnologyTaiyuanShanxi 030024China College of Materials Science and Engineering Taiyuan University of TechnologyTaiyuanShanxi 030024China

Accelerated environmental(hygrothermal)exposure experiments are performed on organic paints coated on commercial die-cast AZ91D Mg alloys to investigate the effects of contamination on ***,artificial human perspiration spray is used to contaminate the substrate *** occurred only for paints that are spread on surfaces with the perspiration *** blisters gradually form at longer test times,and the volume of blistering *** electron microscopy indicates that blistering is initiated by contamination and/or substrate corrosion at the interface of the organic paints and the *** is characterized for two samples exposed to the hygrothermal environments for various times,and is found to be initially empty in the early *** chloride contaminants from the perspiration lead to in situ adhesion ***,the paints volume expands,and the associated compressive stress causes it to *** long-term test exposure,chloride anions corrode the substrate under the films,and MgO,Mg(OH)_(2),and Mg_(2)(OH)_(3)Cl corrosion products fill the ***,a model of blistering evolution is discussed.

关键词： Mg alloys Organic paints Artificial human perspiration Blistering Corrosion

Giant magneto-impedance effect of two paralleled amorphous microwires

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Rare Metals 2016年第4期35卷 344-348页

作者： Shu-Ling Zhang Yue-sheng chai Da-Qing Fang Lu-Cai Wang Da-Wei Xing Jian-Fei Sun School of Materials Science and Engineering Taiyuan University of Science and Technology School of Materials Science and Engineering Harbin Institute of Technology

Giant magneto-impedance （GMI） is effectively enhanced by the mutual magnetic interaction between two amorphous microwires. A comparative study on GMI properties of a single wire and two wires arranged in par- allel mode was reported in this work. Two-peak （TP） of impedance characteristic is presented when the dc external field changed from 0 to 320 A,m-＇ in two-wire system, which is attributed to successive magnetization process in two wires induced by their magnetic interaction. And the evolution of single peak to TP phenomenon, when the distance between two wires is upto 8 ram, evidences a distance dependence of transformation from successive magnetization to simultaneous via a corresponding dis- tance dependence of magnetostatic interactions. It is pro- posed that the recombination of magnetic interaction and the shielding effect results in a distance dependency of GMI response. When the distance is 8 ram, the magneti- zation process is close to synchronous between two wires, which give rises to higher circular permeability and better GMI response. The impedance ratio AZ/Z increases from 74.5 % of single wire to 172.4 % at 10 MHz. However, when the distance is upto 12 mm, the magnetic interaction is weak and magnetization process is completely independent, and GMI response decreases, relatively. This indicates that the GMI response could be effectively improved in a two-wire connection with an optical distance, which is promising and useful for the application of high-performance GMI sensors.

关键词： Amorphous microwire Magnetic interaction Giant magneto-impedance Magnetization

Quzhi Formula Alleviates Nonalcoholic Steatohepatitis by Impairing Hepatocyte Lipid Accumulation and Inflammation via Bip/eIF2α Signaling

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Journal of Clinical and Translational Hepatology 2022年第6期10卷 1050-1058页

作者： Yue-Lan Wu Jiao-Xiang Wu Ting-Ting Shen Hai-sheng chai Hui-Fen Chen Qin Zhang Tongren Hospital Shanghai Jiao Tong University School of MedicineShanghaiChina Hongqiao International Institute of Medicine Tongren HospitalShanghai Jiao Tong University School of MedicineShanghaiChina Department of Clinical Laboratory Tongren HospitalShanghai Jiao Tong University School of MedicineShanghaiChina Department of Infec-tious Diseases Tongren HospitalShanghai Jiao Tong University School of MedicineShanghaiChina Shanghai municipal Hospital of Traditional Chinese Medicine Shanghai University of Traditional Chinese MedicineShanghaiChina Depart-ment of Laboratory Medicine Shanghai First Maternity and Infant HospitalSchool of MedicineTongji UniversityShanghaiChina Phase I Clinical Trial Unit Tongren HospitalShanghai Jiao Tong University School of MedicineShanghaiChina

Background and Aims:The Quzhi formula,a Chinese med-icine compound prescription,relieves nonalcoholic steato-hepatitis(NASH)*** study aimed to explore the mechanism of the Quzhi formula against ***:A choline-deficient,L-amino acid-defined,high-fat diet induced a NASH mouse model and a free fatty acid-induced mouse hepatocyte cell model were used to evaluate the function of Quzhi formula in vivo and in *** pharmacol-ogy and molecular docking technology were performed to uncover the possible protective mechanisms of the Quzhi formula against *** factors in liver lipid metabolism and endoplasmic reticulum(ER)stress pathway were evalu-ated to verify the ***:The positive contri-bution of the Quzhi formula on NASH was confirmed in vivo and in *** accumulation of lipid in the liver and inflammatory responses were significantly decreased by the Quzhi *** pharmacological analysis and Kyoto Encyclopedia of Genes and Genomes pathway enrichment analysis showed that the Quzhi formula protected against NASH by regulating ER stress and inflammatory responses,which was enhanced by further molecular docking *** addition,mechanism exploration showed that Quzhi formula mainly reduced ER stress by downregulating Bip/eIF2α***:The Quzhi formula protected against NASH by inhibiting lipid accumulation,ER stress,and inflammatory responses,which supports the potential use of Quzhi formula as an alternative treatment for NASH.

关键词： Quzhi formula NASH NAFLD ER stress Inflammation

Electrical and thermal transport properties of kagome metals AV3Sb5(A=K,Rb,Cs)

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Tungsten 2023年第3期5卷 300-316页

作者： Xin-Run Mi Kun-Ya Yang Yu-Han Gan Long Zhang Ai-Feng Wang Yi-sheng chai Xiao-Yuan Zhou Ming-Quan He Low Temperature Physics Lab College of Physics and Center of Quantum Materials and DevicesChongqing UniversityChongqing 401331China

The interplay between lattice geometry,band topology and electronic correlations in the newly discovered kagome compounds AV3Sb5(A=K,Rb,Cs) makes this family a novel playground to investigate emergent quantum phenomena,such as unconventional superconductivity,chiral charge density wave and electronic *** exotic quantum phases naturally leave nontrivial fingerprints in transport properties of AV3Sb5,both in electrical and thermal channels,which are prominent probes to uncover the underlying *** this brief review,we highlight the unusual electrical and thermal transport properties observed in the unconventional charge ordered state of A V3Sb5,including giant anomalous Hall,anomalous Nernst,ambipolar Nernst and anomalous thermal Hall *** of these anomalous transport properties to time-reversal symmetry breaking,topological and multiband fermiology,as well as electronic nematicity,are also ***,a perspective together with challenges of this rapid growing field are given.

关键词： Kagome superconductors Charge density wave Anomalous Hall effect Anomalous Nernst effect Ambipolar Nernst Effect Anomalous thermal Hall effect

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双缆悬索桥体系的力学特性(Ⅲ)

华南理工大学学报（自然科学版） 2013年第8期41卷 120-126页

作者：柴生波肖汝诚同济大学桥梁工程系上海200092

双主缆悬索桥体系中,塔顶位移及主缆的弹性伸缩均能引起主缆垂度的改变.文中假定连结上缆与下缆的吊杆不可伸缩,在塔顶位移及主缆弹性伸缩的共同作用下,上缆与下缆的竖向位移相等.基于此原理推导了双主缆悬索桥体系对桥塔顺桥向的约束... 详细信息

双主缆悬索桥体系中,塔顶位移及主缆的弹性伸缩均能引起主缆垂度的改变.文中假定连结上缆与下缆的吊杆不可伸缩,在塔顶位移及主缆弹性伸缩的共同作用下,上缆与下缆的竖向位移相等.基于此原理推导了双主缆悬索桥体系对桥塔顺桥向的约束刚度表达式及荷载在上缆与下缆之间的转移量与塔顶位移的关系,研究了单跨施加均布荷载时加载跨挠度的求解方法,给出了解析表达式,并建立有限元模型对公式进行了验证,模型值与理论值符合较好.

关键词：双主缆悬索桥力学特性约束刚度挠度

Silicon Field Emission Arrays Coated with CN_x Thin Films

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Wuhan University Journal of Natural Sciences 2003年第03A期8卷 825-828页

Arrays of silicon micro\|tips were made by etching the p\|type (1 0 0) silicon wafers which had SiO 2 masks with alkaline solution. The density of the micro\|tips is 2×10 4 cm -2 . The Scanning Electron Microscope (SEM) photos showed that the tips in these arrays are uniform and orderly. The CN x thin film, with the thickness of 1.27μm was deposited on the silicon micro\|tip arrays by using the middle frequency magnetron sputtering technology. The SEM photos showed that the films on the tips are smoothly without particles. Keeping the sharpness of the tips will benefit the properties of field emission. The X\|ray photoelectron spectrum (XPS) showed that carbon, nitrogen and oxygen are the three major elements in the surfaces of the films. The percents of them are C: 69.5 %, N: 12.6 % and O: 17.9 %. The silicon arrays coated with CN x thin films had shown a good field emission characterization. The emission current intensity reached 3.2 mA/cm 2 at 32.8 V/μm, so it can be put into use. The result showed that the silicon arrays coated with CN x thin films are likely to be good field emission cathode. The preparation and the characterization of the samples were discussed in detail.

关键词： field emission CN x thin films silicon micro\|tip arrays