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SYSTEM RELIABILITY OF ASSURED ACCURACY RATE FOR MULTI-STATE COMPUTER NETWORKS FROM SERVICE LEVEL AGREEMENTS VIEWPOINT

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Journal of Systems Science and Systems Engineering 2014年第2期23卷 196-211页

作者： Yi-Kuei Lin Cheng fu huang Department of Industrial Management National Taiwan University of Science & Technology

From the viewpoint of service level agreements, the transmission accuracy rate is one of critical performance indicators to assess internet quality for system managers and customers. Under the assumption that each arc＇s capacity is deterministic, the quickest path problem is to find a path sending a specific of data such that the transmission time is minimized. However, in many real-life networks such as computer networks, each arc has stochastic capacity, lead time and accuracy rate. Such a network is named a multi-state computer network. Under both assured accuracy rate and time constraints, we extend the quickest path problem to compute the probability that d units of data can be sent through multiple minimal paths simultaneously. Such a probability named system reliability is a performance indicator to provide to managers for understanding the ability of system and improvement. An efficient algorithm is proposed to evaluate the system reliability in terms of the approach of minimal paths.

关键词： Assured accuracy rate service level agreement (SLA) transmission time multi-state computer network (MSCN) system reliability

Integrated lifting line/surface panel method for optimal propeller design with consideration of hub effect

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Journal of Hydrodynamics 2019年第6期31卷 1218-1230页

作者： Wen-yu Sun Guo-fu huang China Ship Scientific Research Center Wuxi 214082China

An optimal marine propeller design method is proposed,which integrates the lifting line and surface panel method and is characterized by the use of the surface panel method to take the hub effect into *** developing an integrated approach instead of an iterative method for the calculation of the interaction between the hub and the designed blades,the hub effects on the optimal circulation can be accounted for throughout the theoretical design *** new integrated method provides a fast and accurate enough method to model the straight forward hub surface,in the optimal propeller design.A systematic design procedure from the basic design inputs to the blade geometry determination is performed and the designed propellers are validated by the surface panel method and the RANS *** design and analysis cases are considered by different approaches with comparison and *** a comparative study including different hub geometries is also performed to reveal the mechanism of the hub effect on the distributions of the propeller optimal loads.

关键词： Optimal circulation design lifting line method surface panel method hub effect

A weak invariance principle for self-normalized products of sums of mixing sequences

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Applied Mathematics(A Journal of Chinese Universities) 2008年第2期23卷 183-189页

作者： fu Ke-ang huang Wei Dept. of Math. Zhejiang Univ. Hangzhou 310027 China

Let variables in the {X, Xn, n ≥ 1} be a sequence of strictly stationary φ-mixing positive random domain of attraction of the normal law. Under some suitable conditions the principle for self-normalized products of ... 详细信息

关键词： self-normalized product domain of attraction of the normal law φ-mixing Wiener process.

Upper bound solution of supporting pressure for a shallow square tunnel based on the Hoek-Brown failure criterion

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2012年第4期13卷 284-292页

作者： fu huang Xiao-li YANG Lian-heng ZHAO School of Civil Engineering Central South UniversityChangsha 410075China

To analyze the stability of a shallow square tunnel, a new curved failure mechanism, representing the mechanical characteristics and collapsing form of this type of tunnel, is constructed. Based on the upper bound theorem of limit analysis and the Hoek-Brown nonlinear failure criterion, the supporting pressure derived from the virtual work rate equation is regarded as an objective function to achieve optimal calculation. By employing variational calculation to optimize the objective function, an upper bound solution for the supporting pressure and the collapsing block shape of a shallow square tunnel are obtained. To evaluate the validity of the failure mechanism proposed in this paper, the solutions computed by the curved failure mechanism are compared with the results calculated by the linear multiple blocks failure mechanism when the Hoek-Brown nonlinear failure criterion is converted into the Mohr-Coulomb linear criterion. The influences of rock mass parameters on the supporting pressure and collapsing block shape are discussed.

关键词： Shallow square tunnel Variational calculation Curved failure mechanism Supporting pressure Shape of collapsingblock Upper bound theorem

Metabolomic profiling provides new insights into blood-brain barrier regulation

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Neural Regeneration Research 2021年第9期16卷 1786-1787页

作者： Sheng-fu huang Omolara O.Ogunshola Institute for Veterinary Physiology Zurich Center for Integrative Human PhysiologyUniversity of ZurichSwitzerland

Early blood-brain barrier(BBB) disturbance contributes to many different neurological diseases including Alzheimer 's disease, Parkinson's disease and stroke, particularly in the etiology and early stages(Abbott et al... 详细信息

关键词： Metab al. diseases

Anti-adsorption mechanism of ion-adsorption type rare earth tailings

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Rare Metals 2023年第4期42卷 1420-1426页

作者： Wan-fu huang Hao Wu Xin-Dong Li Jia-Cai Ou Xiao-Lin huang School of Resource and Environmental Engineering Jiangxi University of Science and TechnologyGanzhou341000China

To investigate the process of RE^(3+)anti-adsorption on ion-adsorption type rare earth tailings,the thermodynamics,adsorption kinetics and infrared spectroscopy of these materials were *** results indicate that the initial reaction rate of anti-adsorption of rare earth tailings is fast,but it reaches a balance in 6 *** formula 1-2a/3-(1-a)2/3=k_2t(k represents rate constant of the reaction,a represents anti-adsorption rate of rare earth ore,t represents anti-adsorption time)of internal diffusion can be used to predict the kinetics of anti-adsorption in IATRE ***ΔH0(ΔH,ΔG,ΔS represent change of enthalpy,Gibbs free energy and entropy,respectively),the anti-adsorption of RE^(3+)on ion-adsorption type RE tailings is a spontaneous physical adsorption *** effects of ligand exchange and strong chemical bond are not found in this *** the anti-adsorption process is exothermic,heating will inhibit the reaction and decrease the anti-adsorption *** to the infrared spectrum analysis,there are no significant changes in the mineral surface after *** on these findings,the anti-adsorption of rare earth tailings is physical adsorption.

关键词： Ion-adsorption type rare earth tailings Anti-adsorption Adsorption thermodynamics Adsorption kinetics

基于建构主义的实训课程混合式教学研究——以中职工业机器人实训课程为例

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职业技术 2025年第1期24卷 89-95页

作者：谢玲杨勇曾梦圆黄福广东技术师范大学机电学院广州510635

围绕智能制造背景下制造业对工业机器人专业人才培养以及教育教学提出的新要求,将建构主义理论融入中职工业机器人实训课程混合式教学。通过情境、协作和会话等要素对“线上+线下”混合式的教学过程进行设计,提出线上分层学习情境、线... 详细信息

围绕智能制造背景下制造业对工业机器人专业人才培养以及教育教学提出的新要求,将建构主义理论融入中职工业机器人实训课程混合式教学。通过情境、协作和会话等要素对“线上+线下”混合式的教学过程进行设计,提出线上分层学习情境、线下安全—技术一体化教学情境、线上线下多元评价模式的构建,促进学生实现知识的意义建构和技能的有效掌握,让每位学生都能够发挥自己的最大潜能,提高实训课程教学质量。

关键词：建构主义理论工业机器人实训课程混合式教学智能制造

Stochastic computer network with multiple terminals under total accuracy rate

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Journal of Zhejiang University-Science C(Computers and Electronics) 2013年第2期14卷 75-84页

作者： Yi-Kuei LIN Cheng-fu huang Department of Industrial Management National Taiwan University of Science and Technology

From the viewpoint of service level agreements,data transmission accuracy is one of the critical performances for assessing Internet by service providers and enterprise *** stochastic computer network(SCN),in which each edge has several capacities and the accuracy rate,has multiple *** paper is aimed mainly to evaluate the system reliability for an SCN,where system reliability is the probability that the demand can be fulfilled under the total accuracy rate.A minimal capacity vector allows the system to transmit demand to each terminal under the total accuracy *** study proposes an efficient algorithm to find all minimal capacity vectors by minimal *** system reliability can then be computed in terms of all minimal capacity vectors by the recursive sum of disjoint products(RSDP) algorithm.

关键词： Multiple terminals Accuracy rate Service level agreements (SLAs) System reliability Minimal path

Desulfurization Behavior and Mechanism of CaO-saturated Slag

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Journal of Iron and Steel Research International 2016年第8期23卷 784-791页

作者： Jian-fei XU fu-xiang huang Xin-hua WANG School of Metallurgical and Ecological Engineering University of Science and Technology Beijing

To develop a high-efficiency desulfurizer for the production of pipeline steel with the LD-RH-CC process,the desulfurization efficiency and mechanism of CaO-saturated slag were studied using a vacuum-induction furnace and Si-Mo electric resistance *** results show that the desulfurization ability for slag with a small amount of solid CaO was highly enhanced under conditions of satisfied *** desulfurization reaction of CaO-saturated slag depended on the liquid slag rather than the solid CaO,as sulfur was not detected inside the solid *** desulfurization efficiency of CaO-saturated slag was also influenced by the amount of residual liquid slag and its sulfur absorption *** sulfur absorption ability of CaO-CaF2 slag was analyzed to be much higher than that of CaOAl2O3-CaF2-（SiO2）***,the effect of solid CaO on the desulfurization kinetics was evaluated and the application conditions of CaO-saturated slag were discussed.

关键词： saturated kinetics sulfur furnace pipeline pretreatment stirring fitted depended accumulated