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A Dataflow-Oriented Programming Interface for Named Data Networking

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Journal of Computer Science & Technology 2018年第1期33卷 158-168页

作者： li-jing wang Yong-Qiang Lv Ilya Moiseenko Dong-Sheng wang Department of Computer Science and Technology Tsinghua University Beijing 100084 China Tsinghua National Laboratory for Information Science and Technology Tsinghua University Beijing 100084 China Computer Science Department University of California Los Angeles CA 90095 U.S.A.

Inheriting from a data-driven communication pattern other than a location-driven pattern, named data net- working （NDN） offers better support to network-layer dataflow. However, the application developers have to handle complex tasks, such as data segmentation, packet verification, and flow control, due to the lack of proper transport-layer protocols over the network layer. In this study, we design a dataflow-oriented programming interface to provide transport strategies for NDN, which greatly improves the efficiency in developing applications. This interface presents two application data unit; （ADU） retrieval strategies according to different data publishing patterns, in which it adopts an adaptive ADU pipelining algorithm to control the dataflow based on the current network status and data generation rate. The interface also offers network measurement strategies to monitor an abundance of critical metrics infuencing the application performance. We verify the functionality and performance of our interface by implementing a video streaming application spanning 11 time zones over the worldwide NDN testbed. Our experiments show that the interface can efficiently support developing high-performance and dataflow-driven NDN applications.

关键词： named data networking (NDN) dataflow network architecture and design transport-layer protocol

Clustering properties of partly charged superfine particles in a light medium

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Chinese Chemical Letters 2007年第11期18卷 1419-1422页

作者： jing Sheng li Juan wang Qin Shen School of Chemistry and Chemical Engineering Jiangsu University 301 Xue Fu Road Zhenjiang 212013 China

This paper investigated average cluster sizes （ACS） and cluster size distributions （CSD） at different shear rates by Brownian dynamics in non-, bi-, and uni-polar systems with partly charged superfine particles, The investigation indicates that clusters in non- polar systems are the weakest and easiest to be damaged by increasing shear stresses; charged particles play important and different roles： in bi-polar system, it intends to strengthen clusters to some extent provided that the sign-like ions homogeneously arranged; in uni-polar system charged particles cracked the clusters into smaller ones, but the small clusters are strong to stand with larger shear stress. The relationship between ACS and shear rates follows power law with exponents in a range 0.18-0.28, these values are in a good agreement with experiment range but at the lower limit compared with other systems of non-metallic cluster particles.

关键词： Partly charged particles Average cluster sizes Cluster size distributions

Simultaneous removal of ethanol, acetaldehyde and nitrogen oxides over V-Pd/γ-Al_2O_3-TiO_2 catalyst

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Journal of Natural Gas Chemistry 2011年第2期20卷 167-172页

作者： Zhe li jing wang Kai He Xia An Wei Huang Kechang Xie Key Laboratory of Coal Science and Technology of Ministry of Education and Shanxi Province Taiyuan University of Technology Taiyuan 030024 Shanxi China

V-Pd/γ-Al2O3-TiO2 catalysts with different vanadium contents were prepared by a combined sol-gel and impregnation method. X-ray diffraction （XRD）, N2 adsorption-desorption （BET）, X-ray photoelectron spectroscopy （XPS） and catalytic removal of ethanol, acetaldehyde and nitrogen oxides at low temperature （〈300 ？C） were used to assess the properties of the catalysts. The results showed that the sample with 1wt% vanadium exhibited an excellent catalytic performance for simultaneous removal of ethanol, acetaldehyde and nitrogen oxides. The conversions of ethanol, acetaldehyde and nitrogen oxides at 250 ？C were 100%, 74.4% and 98.7%, respectively. V-Pd/γ-Al2O3-TiO2 catalyst with 1 wt% vanadium showed the largest surface area and higher dispersion of vanadium oxide on the catalyst surface, and possessed a larger mole fraction of V4＋ species and unique PdO species on the surface, which can be attributed to the strong synergistic effect among palladium, vanadium and the carriers. The higher activity of V-Pd/γ-Al2O3-TiO2 catalyst is related to the V4＋ and Pd2＋ species on the surface, which might be favorable for the formation of active sites.

关键词： V-Pd/γ-Al2O3-TiO2 simultaneous removal ethanol acetaldehyde nitrogen oxides

Cascade model for continuous prediction of silicon content of molten iron with coupled state variable nodes

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Journal of Iron and Steel Research International 2023年第5期30卷 897-914页

作者： Yang Han Ze-qian Cui li-jing wang Jie li Ai-min Yang Yu-zhu Zhang Hebei Engineering Research Center for the Intelligentization of Iron Ore Optimization and Ironmaking Raw Materials Preparation Processes North China University of Science and TechnologyTangshan 063210HebeiChina College of Metallurgy and Energy North China University of Science and TechnologyTangshan 063210HebeiChina

With the goal of achieving advanced and multi-step prediction of silicon content of molten iron in the blast furnace ironmaking process,a path adaptive optimization seeking strategy coupled with simulated annealing algorithm and genetic algorithm was proposed from the perspective of innovative intelligent algorithm *** was further coupled with wavelet neural network algorithm to deeply explore the nonlinear and strong coupling relationship between the information of big data samples and construct a cascade model for continuous prediction of silicon content of molten iron with the intelligent research results of state variables such as permeability index as the node and silicon content forecast as the *** the model construction process,the 3r criterion was used for non-anomaly estimation of abnormal data to build a time-aligned sample set for multi-step forecasting of iron content,the normalization method was used to eliminate the influence of dimensionality of sample information,and the spearman correlation analysis algorithm was used to eliminate the time delay between state variables,control variables,and silicon content of molten iron in the blast furnace smelting *** results show that permeability and theoretical combustion temperature as the key state variable nodes have real-time correlation with the silicon content of molten iron,and there are accurate forecasting results on the optimal path with the endpoint of molten iron silicon content *** path finding based on the improved genetic algorithm of simulated annealing has good effect on the downscaling and depth characterization of sample data and improves the data ecology for the application of wavelet neural network *** accuracy of the real-time continuous forecasting model for the silicon content of molten iron reaches 95.24%;the hit rate of continuous forecasting one step ahead reaches 91.16%,and the hit rate of continuous forecasting five steps ahead is 87.41

关键词： Silicon content Molten iron Optimal path State variable node Wavelet neural network Step-by-step prediction

Effects of conform continuous extrusion and heat treatment on the microstructure and mechanical properties of Al–13Si–7.5Cu–1Mg alloy

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International Journal of Minerals,Metallurgy and Materials 2019年第8期26卷 1013-1019页

作者： Gao-yong lin Xin Tan Di Feng jing-li wang Yu-xia Lei School of Materials Science and Engineering Central South UniversityChangsha 410083China Key Lab of Nonferrous Materials Ministry of EducationCentral South UniversityChangsha 410083China Department of Materials Science and Engineering Jiangsu University of Science and TechnologyZhenjiang 212003China

The effects of conform continuous extrusion and subsequent heat treatment on the mechanical and wear-resistance properties of high-alloying Al–13Si–7.5Cu–1Mg alloy were *** microstructures of alloys before and after conform processing and aging were compared by transmission electron microscopy and scanning electron microscopy,*** results reveal that the primary phases were broken and refined by intense shear deformation during conform *** the conform-prepared Al–13Si–7.5Cu–1Mg alloy was subjected to solid-solution treatment at 494℃for 1.5 h and aging at 180℃for 4 h,its hardness improved from HBS 115.8 to HBS 152.5 and its ultimate tensile strength increased from 112.6 to 486.8 *** wear resistance was also *** factors leading to the enhanced strength,hardness,and wear resistance of the alloy were discussed in detail.

关键词： Al-13Si-7.5Cu-1Mg alloy conform continuous extrusion heat treatment wear resistance

Responses of serum inflammatory factor high-sensitivity C-reactive protein, interleukin-6, and tumor necrosis factor-alpha in elderly males with cerebral infarction Non-randomized concurrent control

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Neural Regeneration Research 2008年第5期3卷 498-500页

作者： Guiping Jiao Xinjie Tan Zhiliu Yuan Chunling li jing wang Wen Mo Department of Medicine for Cadre the People＇s Hospital of Guizhou Province Guiyang 550002 Guizhou Province China

BACKGROUND： Cerebral infarction is poorly treated due to neuronal necrosis and secondary pathophysiological changes; for example, free radical production and inflammatory reactions. OBJECTIVE： To detect the levels of high-sensitivity C-reactive protein （hs-CRP）, interleukin-6 （IL-6）, and tumor necrosis factor- a （TNF- α ） in elderly males with cerebral infarction. DESIGN： Non-randomized current control study. SETTING： Cadre Medical Department, Guizhou Provincial People＇s Hospital. PARTICIPANTS： Forty elderly males （65-89 years old） with cerebral infarction were selected from Cadre Medical Department, Guizhou Provincial People＇s Hospital from February 2004 to December 2006. All patients met the diagnostic criteria of cerebral infarction modified at the 4th National Cerebrovascular Disease Academic Meeting, and were diagnosed on the basis of CT or MRI tests. Furthermore, 35 elderly male inpatients （65-87 years old） without cerebral infarction were selected as the control group. Included subjects provided confirmed consent and did not have heart disease, diabetes mellitus, lipid disorder, acute trauma, infection, rheumatism, or other inflammatory diseases. The study was approved by the local ethics committee. There were no significant differences in age, blood pressure, and lipid levels between the cerebral infarction group and the control group （P 〉 0.05）, and this suggested that the baseline data of both groups were comparable. METHODS： Fasting venous blood was drawn from cerebral infarction patients 24 hours after cerebral infarction attack and from control subjects 24 hours after hospitalization. A latex-enhanced immunoturbidimetric assay and an enzyme-linked immunosorbent assay were used to detect the levels of hs-CRP, IL-6, and TNF- α in the serum. MAIN OUTCOME MEASURES： The levels of hs-CRP, 1L-6, and TNF- α in the serum in both groups. RESULTS： Forty cerebral infarction patients and thirty-five control subjects were included in the final analysis without any lo

关键词： high-sensitivity C-reactive protein interleukin tumor necrosis factor-alpha: elderly males cerebral infarction

White organic light-emitting devices based on fac tris(2-phenylpyridine) iridium sensitized 5,6,11,12-tetraphenylnap-hthacene

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Optoelectronics Letters 2008年第3期4卷 205-208页

作者： DING Gui-ying wang Jin JIANG Wen-long wang jing wang li-zhong CHANG Xi College of Information Technology Jilin Normal University Siping 136000China

We have fabricated the white organic light-emitting devices （WOLEDs） based on 4,4＇ -bis（2,2 -diphenyl vinyl）-1,1＇ - biphenyl （DPVBi） and phosphorescence sensitized 5,6,11,12,-tetraphenylnaphthacene （rubrene）. The device structure is ITO/2T-NATA （20 nm）/NPBX （20 nm）/CBP： x%Ir（ppy）3：0.5% rubrene （8 nm）/NPBX （5 nm）/DPVBi （30 nm）/Alq（30 nm）/liF（0.5 nm）/A1. In the devices, DPVBi acts as a blue light-emitting layer, the rubrene is sensitized by a phosphorescent material, fac tris （2-phenylpyridine） iridium [Ir（ppy）3], acts as a yellow light-emitting layer, and N,N＇ -bis- （1-naphthyl）- N,N＇ -diphenyl -1, 1＇ -biphenyl-4,4＇ -diamine （NPBX） acts as a hole transporting and exciton blocker layer, respectively. When the concentration of Ir （PPY）3 is 6wt%, the maximum luminance is 24960 cd/m^2 at an applied voltage of 15 V, and the maximum luminous efficiency is 5.17 cd/A at an applied voltage of 8 V.

关键词：光散射铱元素有机物磷光

Selection of Yarrowia lipolytica Strains with High Protein Content from Yeasts Isolated from Different Marine Environments

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Journal of Ocean University of China 2007年第4期6卷 360-364页

作者： CHI Zhenming wang Fang wang lin li jing wang Xianghong Unesco Chinese Center of Marine Biotechnology Ocean University of China Qingdao 266003 P. R. China

A total of 78 Yarrowia lipolytica yeast strains from seawater, sediments, mud of salterns, the guts of marine fish, and marine algae were obtained. After the crude protein of the yeasts was estimated by the method of Kjehldahl, we found that seven strains of the marine yeasts grown in soy bean cake hydrolysate with 20 g LZ of glucose for 48h at 28~C contained more than 41.0g protein per 100g of cell dry weight and the cell dry weight was more than 4.4g per L of the culture. Among them, strain SWJ-Ib contained the highest crude protein. The results of Biolog identification and molecular methods further confirmed that they indeed belonged to Y lipolytica.

关键词： Y. lipolytica single cell protein biolog molecular identification

Effects of Co-addition of DBS and PEG on Wetting Performance of TiO_2 Film

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Chemical Research in Chinese Universities 2011年第1期27卷 1-5页

作者： QU Yi-chun jing li-qiang wang Wen-xin FU Hong-gang liU Yang Key Laboratory of Functional Inorganic Materials Chemistry Ministry of EducationSchool of Chemistry and Materials Science Heilongjiang University Harbin 150080 P. R. China

Nanocrystalline anatase TiO2 films with indium tin oxide（ITO） coated glass as the film substrate were fabricated through spin-coating technique. The TiO2 pastes were prepared with sodium dodecylbenzenesulfonate（DBS） modified TiO2 nanocrystals, synthesized by sol-hydrotherrnal processes in advance, together with different amounts of polyethylene glycol（PEG） macromolecules. The as-prepared films were mainly characterized by ultraviolet-visible （UV-Vis） spectroscopy, field emission scanning electron microscopy（FE-SEM） and water contact angle（WCA） measurement. Effects of the addition of DBS and PEG on the wetting performance of the resulting films and relevant mechanisms were principally investigated. The results show that the as-prepared film displays super-hydrophilic property after co-addition of DBS and PEG although it is not exposed to ultraviolet light prior to the WCA measure- ment. This appealing result is mainly attributed to the produced micro- and nanometer-scale hierarchical surface structure with uniformly dispersed micro papillae. Each papilla was made up of a great number of TiO2 nanoparticles. The possible formation mechanisms related to the DBS amphiphilic property of the characteristic surface were also suggested. Moreover, the resulting film also exhibits considerable durability in the superhydrophilicity, which is very useful for practical application in self-cleaning, anti-fogging, and bacteria-resistant fields.

关键词： Thin film Chemical synthesis Surface property