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An Agent Interaction Based Method for Nonlinear Process Plan Scheduling

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武汉理工大学学报 2006年第S2期28卷 705-708页

作者： GAO Qinglu~1 WU bo~2 GUO Guang~2 1.school of Management,wuhan university of Technology,wuhan 430070 ,china.2.school of Mechanical engineering,Huazhong university of Science and Technology,wuhan 43.074,china school of Management Wuhan University of TechnologyWuhan 430070China school of Mechanical engineering Huazhong University of Science and TechnologyWuhan 430074China

This article puts forward a scheduling method for nonlinear process plan shop *** allocation and load bal- ance are realized by bidding *** the agent interaction process,the execution of tasks is determined and the co... 详细信息

关键词： agent interaction nonlinear process plan bidding mechanism

Bipolar charged aerosol agglomeration and collection by a two-zone agglomerator

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Journal of environmental Sciences 2001年第3期13卷 276-279页

作者： XIANG Xiao dong 1, CHEN Bao zhi 1, COLBECK I 2 (1. school of Resource and Civil engineering, Northeastern university, Shenyang 110006, china. 2. Institute for environmental Research, Department of Biological and Chemical Sciences, university of Es school of Resource and Civil engineering Northeastern University Shenyang 110006 China.

In older to collect fine particles more efficiently, a new-type electrostatic agglomerator with two zones was developed. The distinguishing feature of this electrostatic agglomerator is that the particles are bipolarly charged and coagulated in the same alternating electric field simultaneously. The silica flour with 2 fun mass median diameter and the smoke from burning wood powder were used as test aerosol. The comparison experimental results have shown that when the mean electric field is 4 kV/cm the collection efficiency of the new electrostatic agglomerator was 98.2% for silica flour and 67.4% for wood powder smoke, Under the same experimental condition. the collection efficiency of the electrostatic agglomerator with three zones was 97.4% for collecting silica flour and the collection efficiency of the electrostatic precipitator was 56.3% for wood powder smoke.

关键词： charged particle agglomeration alternating electric field electrostatic agglomerator (EA) electrostatic precipitator (ESP) collection efficiency

Photocatalytic Degradation of Metronidazole in Aqueous Solution by Niobate K_6Nb_(10.8)O_(30)

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wuhan university Journal of Natural Sciences 2010年第4期15卷 345-349页

作者： WANG Huiyan1, ZHANG Gaoke2, GAO Yuanyuan2 1. Hospital, wuhan university of Technology, wuhan 430070, Hubei, china.2. school of Resources and environmental engineering, wuhan university of Technology, wuhan 430070, Hubei, china Hospital Wuhan University of Technology Wuhan Hubei China school of Resources and environmental engineering Wuhan University of Technology Wuhan Hubei China

The photocatalytic degradation of antibiotic metroni-dazole in aqueous solution by niobate K6Nb10.8O30 photocatalyst that was prepared using a soft-chemical method was studied by Fourier transform infrared spectroscopy and UV-Vis absorption spectrum. Metronidazole is very stable and is difficult to degrade under UV irradiation. K6Nb10.8O30 photocatalyst cannot degrade metronidazole without UV irradiation and shows very high photo-catalytic activity for the degradation of metronidazole under UV irradiation. The photocatalytic degradation rate of metronidazole increased with increasing the dosage of K6Nb10.8O30 photocatalyst. The photocatalytic degradation reaction of metronidazole by nio-bate K6Nb10.8O30 follows the first-order kinetic equation.

关键词： niobate potassium niobate metronidazole photo- catalytic kinetics

Separation of Red (Y_2O_3:Eu^(3+)), Blue (BaMgAl_(10)O_(17):Eu^(2+)) and Green (CeMgAl_(10)O_(17):Tb^3) Rare Earth Phosphors by Liquid/Liquid Extraction

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Journal of wuhan university of Technology(Materials Science) 2009年第4期24卷 603-607页

作者：梅光军 school of Resource and environmental engineering Wuhan University of Technology

A novel process for separation of red （Y2O3：Eu^3＋）, blue（BaMgAl10O17：Eu^2＋） and green （CeMgAl10O17：Tb^3） rare earth fluorescent powders was proposed. At first, the blue powder can be extracted selectively from an aqueous solution using a chelating collector 2-thenoyltrifluoroacetone （TTA） dissolved in heptane at alkaline pH condition, then, chloroform was used for extracting the green powder into organic phase. The red phosphor remains in aqueous phase with potassium sodium tartrate depressant （PST）. Therefore, three phosphors can be separated successfully from their artificial mixtures by liquid/liquid extraction, and grades and recovery of separated products reach respectively as follows： red is 96.9% and 95.2%, blue is 82.7% and 98.8%, green is 94.6% and 82.6%.

关键词： rare earth phosphor solid-solid separation liquid/liquid extraction

Reliability-aware automatic composition approach for web services

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Science china.Information Sciences) 2012年第4期55卷 921-937页

作者： LI Mu 1,2,LI bo 1,2 & HUAI JinPeng 1,2 1 State Key Laboratory of Software Development Environment,Beihang university,Beijing 100191,china.2 school of Computer Science and engineering,Beihang university,Beijing 100191,china 1. State Key Laboratory of Software Development Environment Beihang University Beijing 100191 China2. School of Computer Science and Engineering Beihang University Beijing 100191 China

In this paper,we study the reliability-aware synthesis problem for composing available services automatically and guaranteeing that the composed result satisfies the specification,such as temporal constraints of functionality and reliability,centered on a synthesis model for mediator of web services composition (CSM).This approach focuses on handling attributes and state relations,and permitting users and services to operate over them,i.e.,read /write their data values and compare them according to a dense state *** show that the reliability-aware synthesis problem for the specification is EXPTIME-complete and we give an exponential-time algorithm (CSM-NSA) which for a given formula ψ and a synthesis model,synthesizes available services in the library satisfying ψ over the synthesis model (if they exist) or responds with "not satisfiable" (otherwise).The specification ψ is a fragment of PCTL (probabilistic computation tree logic),obtained from "ordinary" CTL (computation tree logic) by replacing the EX,AX,EU and AU operation with their quantitative counterparts X >p,X =1,U >p,and U =1,*** opposed to NSA,we provide a more effective algorithm to replace the NSA algorithm called CSM-HSA (heuristic synthesis algorithm).Though HSA is an incomplete algorithm,the answer is *** experiments show that the HSA algorithm solves the problem of reliability-aware service synthesis effectively and efficiently.

关键词： reliability web services synthesis problem synthesis model heuristic algorithm

Influential Factors on Deicing Performance of Electrically Conductive Concrete Pavement

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Journal of wuhan university of Technology(Materials Science) 2006年第2期21卷 123-127页

作者：唐祖全 College of Materials Science & engineering Chongqing UniversityChongqing 400045China

The deicing experiment of carbon fiber reinforced electrically conductive concrete （CFRC） slab was conducted in laboratory at first, then the deicing process of CFRC parement was analyzed by means of finite element method （FEM）. At last, based on the energy conservation law and the computing restdts of finite element method, the influential factors including the setting of electric heating layer, environmental temperature, the thickness of ice, material parameters, and deicing power on deicing performance and energy consumption were discussed.

关键词： electrically conductive concrete deicing performance electrothermal effect energy consumption influence factors

Photocatalytic degradation of formaldehyde by diffuser of solar light pipe coated with nanometer titanium dioxide thin films

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Science china.Technological Sciences) 2010年第1期53卷 150-154页

作者： WU YanPeng1,ZHANG WenMing1,MA ChongFang2,LU YuanWei2 & LIU Li1 1.school of Civil and environmental engineering,university of Science and Technology Beijing,Beijing 100083,china.2 College of environmental and Energy engineering,Beijing university of Technology,Beijing 100022,china 1. school of Civil and environmental engineering University of Science and Technology Beijing Beijing 100083 China2. College of Environmental and Energy Engineering Beijing University of Technology Beijing 100022 China

The even and transparent nanometer TiO2 thin films named DegussaP25 as photocatalysis deposited on the surface of diffusers of solar light pipe were prepared by sol-gel *** rugged side of the diffusers of solar light pipe was coated evenly with DegussaP25 solution for the quality of 1.75 *** experiments had showed that when the coated side was away from the sun the lighting degree may be reduced compared with that facing the *** average reduction was only 3.03%,which would not have a significant impact on *** are important parts of a light pipe which can diffuse light evenly to the place needed to be *** experiments showed that in a sunny summer day under the direct sunlight,the solar light pipe combined with photocatalysis could reduce the formaldehyde volume fraction in a box of 0.1 m3 from 1.0×10-6 to 0.16×*** 1 h of photodegradation the formaldehyde volume changed from 1.0×10-6 down to 0.1×10-6 with faster and more complete degradation of *** rate of degradation under cloudy and partly cloudy conditions was slower than that under sunny *** was slower in winter than in summer under sunny *** experimental results also showed that the performance of photocatalysis combined with diffusers of light pipe had better effect in a small *** performance in large space,such as open space,will be the next work in the future,which will be a great challenge.

关键词： solar light pipes diffusers photocatalysis decomposition formaldehyde titanium dioxide

Preparation and characterization of nitrogen-doped titanium dioxides

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Science china.Chemistry 2007年第2期50卷 212-216页

作者： ZHU GuoPing1 & ZHOU KangGen2 1 environmental Science Research & Design Institute of Zhejiang Province,Hangzhou 310007,china.2 Department of environmental engineering,school of Metallurgical Science and engineering,Central South university,Changsha 410083,china 1. environmental Science Research & Design Institute of Zhejiang Province Hangzhou 310007 China 2. Department of environmental engineering School of Metallurgical Science and Engineering Central South University Changsha 410083 China

A type of high visible-light active titanium oxinitride(TiO2-xNx) powder was prepared by a simple proc-ess:the calcination of the hydrated titanium dioxide at the atmosphere of ammonia-argon using a tu-bular electric furnace at high temperatures. The hydrated titanium dioxide was synthesized as the precursor of TiO2-xNx using titanic acid as raw material,which came from sulfate technique of produc-ing titanium white. The effects of temperature and reaction time on the nitrogen content,grain size and crystal structure were studied. The visible-light activity and photocatalysis capability of the powder were also investigated.

关键词： nitrogen-doped titanium dioxides visible-light activity photocatalysis titanium oxinitride

Second-order consensus in networks of dynamic agents with communication time-delays

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Journal of Systems engineering and Electronics 2010年第1期21卷 88-94页

作者： bo Yang1,2, Huajing Fang3, and Hua Wang4 1. school of Navigation, wuhan university of Technology, wuhan 430063, P. R. china.2. wuhan Second Ship Design and Research Institute, wuhan 430064, P. R. china.3. Department of Control Science and engineering, Huazhong university of Science and Technology, wuhan 43.074, P. R. china.4. Department of Aerospace and Mechanical engineering, boston university, boston MA02215, USA school of Navigation Wuhan University of Technology Wuhan 430063 P. R. China wuhan Second Ship Design and Research Institute Wuhan 430064 E R. China Department of Control Science and engineering Huazhong University of Science and Technology Wuhan 430074 P. R. China Department of Aerospace and Mechanical engineering Boston University Boston MA02215 USA

This paper proposes second-order consensus protocols with time-delays and gives the measure of the robustness of the protocols to the time-delay existing in the network of agents with second-order dynamics. By employing a frequency domain method, it is proven that the information states and their time derivatives of all the agents in the network achieve consensus asymptotically, respectively, for appropriate communication timedelay if the topology of weighted network is connected. Particularly, a tight upper bound on the communication time-delay that can be tolerated in the dynamic network is found. The consensus protocols are distributed in the sense that each agent only needs information from its neighboring agents, which reduces the complexity of connections between neighboring agents significantly. Numerical simulation results are provided to demonstrate the effectiveness and the sharpness of the theoretical results for second-order consensus in networks in the presence of communication time-delays.

关键词： second-order consensus protocols dynamic networks algebraic graph theory frequency domain analysis com-munication constraints.