bluuebunny/crossref_metadata_2025 huggingface dataset:
Visible-Light Driven C3N4 Photocatalysts Prepared by a Thermal Decomposition Process
Authors: Ma Huai Feng , Tang Pei Song
Published: June 2012

The C3N4was synthesized by directly thermal decomposition melamine in N2atmosphere furnace. The products were characterized by powder X-ray diffraction (XRD), scanning electron microscopy (SEM) and UV-Vis diffuse reflectance spectroscopy (DRS). The results show that C3N4indicates the typical slate-like, stacked lamellar texture of about 1μm in diameter, and a band gap of about 2.78 eV. The photocatalytic experiment shows the good photocatalytic activity for the decomposition of methyl orange (MO) under visible-light irradiation, which is attributed to the strong visible-light absorption.
Synthesis of Nanocrytalline YVO4 by Microwave Assisted Process and its Photocatalytic Activity
Authors: Ye Yan Lin , Tang Pei Song
Published: June 2012

The YVO4 was synthesized by microwave assisted process. The products were characterized by powder X-ray diffraction (XRD), scanning electron microscopy (SEM), UV-Vis diffuse reflectance spectroscopy (DRS), thermogravimetry and differential thermal analysis (TG-DTA) and Brunauer-Emmett-Teller (BET) method. The results show that YVO4 was tetragonal crystal, particle size of 50 to 80 nm, band gap of 3.3 eV and surface area of 18.6m2/g. The photocatalytic experiment of YVO4 shows the high photocatalytic activity for the decomposition of methyl orange under UV-light irradiation.
Analysis on Control Operating Conditions of Water Chemistry of Nuclear Power Unit
Authors: Li Wei , Li Jian Feng
Published: June 2012

Hydrochemical working condition of nuclear power plant relates to the safety, stability and economical operation of the whole plant. In view of radioactive factors, it is very important to analyze, identify and supervise the chemical control working condition. Based on AP1000 cases, this article analyzes issues through elaborating the primary system and the secondary system of nuclear power plant, especially the hydrochemical control of steam generator, and then takes targeted and effective control methods to provide references for the future nuclear power plants.
Dye Wastewater Treatment by Means of Electrochemistry in Diaphragm Electrolyzer
Authors: Hu Jun Sheng , Dong Jia Li , Wang Ying , Ren Xue Dong
Published: June 2012

In diaphragm cell, by using the porous graphite as anode, ACF as the cathode, acid scarlet 3R as simulated wastewater, the experiment researched into the effect of current density, electrolyte concentration, aeration rate and the initial pH value on the color removal of wastewater. The results show that the decolourization efficiency increased gradually when the applied current density increases, but the trend will slow down when current density exceeds a certain value. The decolourization efficiency is proved to be first increases then decreases with increased electrolyte concentration and aeration rate, both excessively high and low electrolyte concentration are unfavorable to the removal of wastewater, however the aeration effect is smaller. The effect on decolorization is greater in acid condition than in alkaline condition. As the diaphragm, electrolyzer resistance increase, its average decolourization efficiency is lower than without diaphragm cell, and the decolourization efficiency of cathode area is significantly higher than the anode area.
Evaluation Based on Interval Number Analytic Hierarchy Process (AHP) for Solar Water Heating System of Civil Buildings
Authors: Wang Gen Xia , Wang Zu He , Duan De Hong
Published: June 2012

Use Interval Number Comparison Matrix to conduct a quantitative and comparative analysis on solar water heating system of civil buildings for the following six aspects: Systems and Building Integrated, System Application Performance, System Security, System Durability, System Economy, and System Components. By constructing a hierarchical model, we establish an interval number comparison matrix, determine the consistency and solve their weight vector. Based on the possibility, it finally make out the degree of evaluation index, provides the design and evaluation of actual solar heating system with decision-making basis.
A Novel Application of Micro-Aerobic Hydrolysis and Acidification on the Treatment of Refractory Chinese Traditional Medicine Wastewater
Authors: Chen Zhan Li , Liu Zhen Zhong , Sun Xiang Rong , Huang Xiao Hua , Zhan Jian
Published: June 2012

The performance of micro-aerobic hydrolysis and acidification on the treatment of refractory Chinese traditional medicine wastewater was studied. The results indicate that it is efficient pre-treatment for reducing toxicity, improving biodegradability and removing organic pollutants from dyestuff wastewater. The effluent quality was relatively stable with the fluctuant influent while the removal efficiencies of COD and SS were 28% and 81% respectively, and more importantly, the increment of BOD5/COD ratio was about 0.18.
The Kinetics of Methyl Methacrylate Miniemulsion Polymerization Characterized through a Fluorescence Method
Authors: Feng Hai Ke , Qiu Hua Yu , Ding Li Yuan , Xu Cun Jin
Published: June 2012

In this paper, we followed the kinetics of methyl methacrylate (MMA) through a novel fluorescence method. The real-time measurement results show that in the regime of very low monomer contents, such as a solution containing 0.1 wt% of MMA with respect to water and with the anionic surfactant of sodium dodecyl sulphate (SDS), the kinetic of the miniemulsion could be followed by this embed fluorescence method. The processes of changing from emulsion to miniemulsion with different amount of surfactant and cosurfactant also have been monitored.
Ultrasonic Degradation Performance of the NiZrMo Heteropoly Salt with Keggin Structure
Authors: Zhang Zhi Hong , Guo Zhi Wei
Published: June 2012

A new heteropoly salt with Keggin structure of the 1:1:11 series had been synthesized, and characterized the structure by the foruier transform infrared spectroscopy (IR), ultraviolet spectra (UV) and X-ray diffraction (XRD).The thermal stability and the number of the crystal water was analyzed by the thermal gravimetric analysis/differential thermal analysis (TG/DTA). It was showed the molecular formula was Na6[Ni(ZrMo11O39)]•20H2O( Abbrev.NiZrMo),it possessed Keggin structure and had good thermal stability. The influences on the degradation rate, such as the amount of the NiZrMo, the initial concentration of the AGB dye wastewater, the ultrasonic frequency and power, were investigated. The results showed that the degradation rate could reach 90.19% after 60min irradiation, when the amount of the NiZrMo was 0.8g•L-1, the concentration of the AGB was 10mg•L-1, the ultrasonic frequency was 40kHz and the ultrasonic power was 80W.
Feasibility Study on Satisfing Standard of Water Pollutants for Pulp and Paper Industry
Authors: Zhu Xiu Lian , Wang Jie , Jiang Ya Li , Cheng Yan Jun , Chen Feng , Ding Shao Bo
Published: June 2012

Contrasting《Discharge standard of water pollutants for pulp and paper industry》(GB3544-2008) to《Discharge standard of water pollutants for pulp and paper industry》(GB3544-2001), this article educes impact for pulp and paper industry by 《Discharge standard of water pollutants for pulp and paper industry》(GB3544-2008). This article discuss producing technics and dealing with waste water technics of pulp and paper industry, that satisfy GB3544-2008.
Photocatalytic Performance of Bi2O3 Prepared with NH3•H2O under Different pH Value
Authors: He Xi Yang , Li Jian Zhang , Zhong Jun Bo , Hu Wei
Published: June 2012

In this paper, parallel flaw precipitation method has been employed to fabricate nanostructured Bi2O3. It is found that the surface parameters, bandgap, the photoinduced charge separation rate and photocatalytic performance of Bi2O3 have a strong dependence on the pH value of precipitation reaction.The prepared photocatalysts were characterized by BET, XRD, UV-Vis diffuse reflectance and surface photovoltage spectroscopy (SPS). The results show that Bi2O3 prepared under pH value10.0 exhibits the best photocatalytic activity among the experimented compositions. The results of further experiments show that surface parameters, bandgap, the photoinduced charge separation rate all play an important role in promotion of photocatalytic activity of Bi2O3 prepared under pH value 10.0.
Decolorisation of Methyl Orange Solution with KIO3 under UV Irradiation
Authors: Wang Tao , He Xi Yang , Li Jian Zhang , Zhong Jun Bo , Zeng Feng Chun , Hu Wei
Published: June 2012

This report has shown that the dye of Methyl Orange (MO) in water can be decolorized effectively in the presence of KIO3 under UV irradiation. Decolorisation efficiency of MO increases as the loading of KIO3 increases and has no an optimal amount of KIO3 in this case. The kinetic result shows that the decolorisation reaction is a pseudo first-order reaction when the concentration of MO is below 10 mgL-1. The influences of the pH value and hydroxyl radical scavengers on the decolorisation reaction were investigated in detailed. Several observations indicate that the mechanism is not the attack of hydroxyl radicals in MO decolorisation with KIO3 under UV irradiation. More considerations should be focused on the underlying possible decolorisation mechanism of MO with KIO3 under UV irradiation.
The Research of Degradation about 1,2,4-Trichlorobenzene by Microorganism on Different Experiment Condition
Authors: Xu Dong Ying , Lv Xi Wu
Published: June 2012

Artificial media was used to enrich microbe and improve the water resource quality, therefore trace quantity organic pollutants of 1,2,4-Trichlorobenzene were biodegraded. The result of the experiment showed that, after domestication, the micro association enriched in the assembled medium could remove corresponding trace quantity organic pollutants in some concentration. When the temperature was 30 degree centigrade, the pH was between 6 and 9, the effect was the best about the removal on trace-quantity-organic pollutants water. A strain of bacteria was separated．At the same time, the congener trace quantity organic pollutants could be biodegraded. When the HRT was 6 days, the removal of trace quantity organic pollutants was between 70%～95%. It is evident that the trace quantity organic pollutants of 1,2,4-trichlorobenzene in the source water quality from Meiliang Bay in Taihu Lake can be well degraded by enriched microbes on the artificial media.
Comparative Researches on Micro-Polluted Raw Water by Three Different Pre-Oxidizing Agents
Authors: Jin Li Jian , Huang Kai
Published: June 2012

Effects of coagulation and algae removal was investigated, based on the micro-polluted raw water in the southern China, which was characterized with low-turbidity and high algae-laden. The different removal efficiency by the Ozone, permanganate and Ozone/hydrogen (O3/H2O2) processes was summarized at the pilot study level. The results showed that the pre-oxidation process could enhance the treatment effect. However, compared with the other two processes, the process of O3 was less effective than either permanganate or O3/H2O2 process.
The Research on the Airflow Organization of Residential Kitchen and how to Introduce Make-up Air
Authors: Shang Shao Wen , Pang Lian Chi , Guo Hai Feng
Published: June 2012

Discusses how to making up air to balance indoor air, eliminate the traditional system defects, through in the hearth (under the smoke exhaust ventilator) additional secondary air tuyere. Using the CFD--fluent6.2 simulation software simulates the airflow organization of the kitchen exhaust system if making up air . Analyze the kitchen indoor airflow velocity distribution, and the pressure distribution in the different condition. Setting sizes for 0.06 ~ 0.10 m2 of secondary air tuyere, fill with air 0.162 ~ 0.184 kg/s ,it can avoid lampblack pollutants spilling effectively, reduce the operating energy consumption. After making-up air the kitchen remains negative state. Under the action of differential pressure, outdoor air is sucked into the kitchen so as to achieve the result, form reasonably airflow organization, meet exhaust requirements, get rid of foul gas effectively.
Research on the System Construction and Countermeasures for Low Carbon Housing Industry
Authors: Shen Liang Feng , Li Qian , Cao Jian Wen
Published: June 2012

From the urgency of speeding-up construction the low carbon housing industry system in China, the integration of housing industry chain is thought the key problem of accelerating for construction our low carbon housing industry system, and some countermeasures including the ideas of low carbon economy carried out in the housing industry chain integration, speeding-up the establishment the standards and norms of low carbon housing industry, pushing the dominant style of housing industrialization strongly, and strengthening low carbon chain integration through the professional services institutions are put forward in this paper.
Diao Bingshan Sun City Endowment Community Wind Environment Design
Authors: Fu Yao , Yang Xian Jing
Published: June 2012

For the elderly special physiological needs, used of building energy evaluation software named Autodesk Vasari to simulate the wind environment of the planning area. Explored the impact of the wind environment on choosing the location of Diao Bingshan Sun city endowment community. And used software to simulate and contrast, optimized local wind environment from layout view. Finally, use the conclusions to guide this project design and summarize the factors affecting the outdoor wind environment in order to guide the design of similar projects.
The Contribution of Earthworms to the Waste Management
Authors: Zhao Li Min , Yan Chao
Published: June 2012

The important and typical roles of earthworms in the eco-environmental protection are illustrated in this paper through their application in the treatment of solid waste and sludge stabilization as well as the important function as the indicators of environmental monitoring.
Analysis of the Change of Heavy Metal Contents in Farmland in Mengcheng
Authors: Xu Guo Wei , Wu Xue , Huang Su Ling , Yuan Xin Tian , Gao Yang , Zhang Yong , Dong Chuan Bin
Published: June 2012

In order to find out the variations of soil heavy metal contents in Mengcheng, the heavy metal of the soil was tested in the same way in 2010, based on the survey results of 2001. The results showed that the contents of the 8 kinds of heavy metal in Mengcheng County were lower than those of the national standard, but the heavy metal content of Mengcheng County in 2010 were significantly higher than those in 2001, especially Pb, and the content of Hg, Ni, As also increased greatly; The increased of changing rate of various heavy metals contents are in the following descending order: Pb> Hg> Ni> As> Cu> Cd> Cr> Zn. The uneven dispersion of various heavy metals element in different sections of Mengcheng County also increased.
The Application of Earthworms in the Waste Management
Authors: Zhao Li Min , Wen Sen
Published: June 2012

The important and typical roles of earthworms in the eco-environmental protection are illustrated in this paper through their application in the treatment of solid waste, sludge stabilization as well as the wastewater purification. Earthworms can hasten the composting process to a significant extent with production of a better quality of compost.
Comprehensive Utilization Study of Iron Tailings
Authors: Dong Feng Zhi
Published: June 2012

It's is very effective using high intensity magnetic separation and low intensity magnetic separation to process magnetite tailings. The best fineness for separation is -0.045mm 85%. The concentrate contains Fe 67.86% under 0.2T field intensity. Processing the tailings twice under 0.5T field intensity, the concentrate contains Fe 55.06%.The total recovery is 53.72%. The study on low-grade iron ore tailings to recover iron achieves good results in improving resource utilization.
Role of Temperature and Flow in Biomass Transporting in Porous Media
Authors: Huang Jing Jing , Zhang Cheng Yuan
Published: June 2012

Underground water source heat pumps system is an underground geothermal technology that extracts underground water as a lower temperature heat source, and recharged into the same aquifer after heat exchanger. During the recharging process, not only external microorganisms such as bacteria but also a variety of contaminants ( for example carbon sources, nitrogen sources, the growth inhibitors/promoters and so on) would get into the aquifer to affect the aquifer's living environment for microbial, which would affect the quality of underground water directly or indirectly. Not only that, the extraction and injection of underground hot water would cause the redistribution of temperature, which would then affect the growth of microorganisms as a key affecter. And the biomass would be transported by seepage flow in way of advection and conduction mainly. Based on the background of underground water source heat pumps system, the coupling of three-field (temperature-hydraulic-microbial) is analyzed, and a corresponding coupled THB model is obtained. Taking Escherichia coli as target organisms in the aquifer, the distribution of biomass various with time and space are obtained respectively. The temperature and advection sensitivity of microbial concentration is also acquired. It is showed that the growth of microbial plays a great role in the process of its transportation, and the concentration of microbial would increase significantly when the local temperature increased or the convection strength decreased while other effects stay the same.
Water-Saving Technology in Irrigation
Authors: Liao Yan , Dong Ying , Chen Xue Wei , Liang Yuan Quan , Wang Shu Long , Zhang Wei Hua
Published: June 2012

Water is a vital natural resource, which is becoming increasingly scarce around the world. The balance between water availability and demand has reached critical levels in many regions due to water demand increasing, and availability diminishing through drought and over-extraction. Water resources have been very important to us human beings since our ancient society. And the use of water in irrigation is a momentous part. Effective and productive irrigation requires the most appropriate water application strategies that take soil, climate, and farming operations into account. In addition to this, inputs used must be applied to where it is required without giving any harmful effects to the environment. In this study, we took a comprehensive consideration of the related records, summarized the methods of water-saving technology in the world for need.
Reaction Mechanism and Kinetics Model of the Green Surfactant Alkyl Polyglucoside
Authors: Li He Ping , Zhang Yao , Yang Yong Zhe , Huang Hong Xia , Xiao Shun Hua
Published: June 2012

On the basis of the study of green surfactant alkyl polyglucoside that was synthesized from starch or glucose and fatty alcohol by direct method, the reaction mechanism was discussed and the macroscopic reaction kinetics model was proposed and established. The kinetics model between the concentration of glucose(CA) and reaction time (t) was as follows: ln(CA—0.00025) = —(Kt+2.08). The method of establishing kinetics model can be popularized to the kinetic study of other alkyl polyglucoside.
Research on the Establishment of the Ecological Service Platform for Forest-Based Carbon Trading with the Example of Huai’an City
Authors: Wang Zhi Guo
Published: June 2012

The increase of greenhouse gas density due to human activities is a major cause for global warming. It is a universally acknowledged that significant approaches to the slow-down of and adaptability to climate change include vigorously developing carbon sink forestry and increasing forest carbon sink. This paper introduces the development history and research trend of carbon trading, and also discusses the construction process of the ecological service platform for carbon trading. Moreover, it covers the investigation of forest carbon reserves, the design of carbon inventory methods and the set-up of the ecological service platform for forest carbon sink, so as to make rewarding exploration into the realization of sustainable economic and social development.
Silica-Scaled Chrysophytes of Cold Region: A Case Study Zhenbao Island Wetland Preserve, Northeast China
Authors: Ma Cheng Xue , Zhang Jing , Yu Hong Xian , Wei Yin Xin , Yuan Xiu Ping
Published: June 2012

This first survey in 2009 and 2010 on silica-scaled Chrysophytes in Zhenbao Island Wetland Preserve, Northeast China, recorded 32 taxa (5 in Chrysophyceae and 27 in Synurophyceae), of which 29 were previously found in other parts of China, three species, Spiniferomonas serrata, Mallomonas transsylvanica and Synura punctulosa are new records to China. In terms of biogeography, 1 taxon is endemic, 2 bipolar, 1 northern temperate, 9 cosmopolitan, and 18 of wide distribution. The endemism of Synura punctulosa, appears due to its poor dispersal ability; lack of sampling data may also contribute its known distribution range. Spiniferomonas serrata and Mallomonas transsylvanica, two bipolar taxa, are the first report in China. More research efforts are needed for adequately understanding the distributions of this group of algae.
Agricultural Nonpoint Source Pollution Model Analysis and Application
Authors: Yang Qing , Sun Sheng Nan , Jiang Zheng Hai , Ying Li Xian , Liu Zhe Jun
Published: June 2012

With the point source pollution was effectively treated, non-point source pollution, especially the agricultural non-point source pollution (ANPSP), is becoming the main problem in environment. The research is focused on the model analysis and application, which could be scientifically distinguish and effectually control ANPSP. Four kinds of models were introduced here with the development of non-point source pollution, as experience statistical model, mechanism model, function model, improved model by 3S technology and the uncertain analyze. Among these models, HSPF and SWAT model were successfully applied in best management practices (BMP) for ANPSP control. In the future, our country should base on the introduction of the foreign mature techniques, which combine the 3S technology and the uncertain improved model, then enhance the autonomous model research and build the basic database.
Study on Optimizing the Managerial Strategies of Municipal Sludge Treatment and Disposal in a City of Northern China
Authors: Lv Jian , Bu Xiao Ming , Li Ji Yuan , Meng Qing Yi , Li Wen Zhong , Xiong Jian Xin
Published: June 2012

A whole process chain managerial strategy is presented to solve the problems of sludge treatment and disposal of municipal wastewater treatment plants in a city of northern China. The problems include negligence of the sludge treatment, scarce capacity, ambiguous responsiblity, lack of whole process management and coherence of management on wastewater and sludge treatment. The system of whole process chain managerial strategy can provide a safe and effective platform to collect the relevant data about sludge disposal. In the system，all executants have the obligation and responsibility to record the data, supervise the operation and management of other subject, and give the report of the record data regularly. The system can be used to discover the problem in sludge disposal, and also it can give suggestion for the planning and adjust the ability of sludge disposal in a city for long-term.
Environmental Problems and Countermeasures Caused by Pit Precipitation
Authors: Tong Huai Feng , Li Hong Fang
Published: June 2012

The environmental effects of the excavation works, which including retaining structures, pile construction, reducing the groundwater level, excavations on the surrounding environment, and performance in many ways. Reducing the underground water level can cause harmful result: the foundation settlement surrounding buildings and nearby underground pipelines. In addition, a large number of extracted groundwater is often discharged directly to the Sewage pipe network is a huge waste of water resources in cities. In this paper, the countermeasures are discussed based on the analysis of the problem.
Optimizing Enzymolysis Technology of Casein and Studying Antibacterial Activity of Generated Peptides
Authors: Pan Qiu Dong , Xia Ming
Published: June 2012

Box-Behnken experiment design was used to optimize the enzymolysis technology of casein, and the antibacterial activity of casein peptides was evaluated. The optimum enzymolysis conditions was trypsin and neutral 1:1, pH7.4, temperature 44°C, substrate concentration 32g/L, E/S 2.5%, when the casein was hydrolyzed for 90 minutes, the antibacterial ability of peptide hydrolyzed from casein would reached 15%, and its antibacterial activity achieved a peak of inhibition ratio 82%. The results suggested that excessive hydrolysis products of casein would lose its antibacterial activity, but the modest hydrolysis product of casein has potential application value in antibacterial agent use.
Influence of Lead (Pb) Stress on the Physiological Growth of Dishlia
Authors: Zhu Qi Hong , Xia Hong Xia
Published: June 2012

This experiment mainly focuses on the influence of lead stress on the growth of dishlia. The result shows that under lead stress,the content of soluble sugar falls then rises as time goes by,while the content of saccharose rises then fall; the content change of starch and superoxide radical in experiment groups is similar to that in the control group but with lower content. Experiment results show that dishlia is tolerant of lead stress and increases such tolerance via soluble sugar,starch,saccharose and superoxide radical
DCOM Based Group Communication for Ship Motion Virtual Simulation
Authors: Shen Zhi Peng , Zhang Ning , Wang Yu Ting
Published: June 2012

Virtual reality based visual interactive simulation system is proposed and completed, which applied integrated intelligent control to ship steering and main engine. For the multipoint communication of the proposed distributed visual simulation system, a DCOM based communication model is discussed. The group communications is divided into three layers from bottom to top. Based on static and dynamic combined algorithm, a dispatcher using centrality load balancing is also presented.
The Runoff Forecasting Model Based on Wavelet Adaptive Neural Fuzzy Inference System
Authors: Gu Jun Fang , Wang Xiao Li , Du Fu Hui
Published: June 2012

Considering various the wavelet decomposition reconstruction technology and training cycle of adaptive neural fuzzy inference system, this article propose four runoff forecast model of wavelet analysis and adaptive neural fuzzy inference system integration, such as the long cycle based on Mallat algorithm in runoff prediction, the long cycle based on wavelet packet algorithm in runoff prediction, the short cycle based on Mallat algorithm in runoff prediction, the short cycle based on wavelet packet algorithm in runoff prediction, and illuminate the model of the principles, structures and procedures. This model is used in Tangnaihe station monthly runoff forecast which lies in the Huanghe source area. Simulation results are evaluated by the cycle decomposition coefficients and Nash-Sutcliffe coefficient; it shows that the long cycle based on Mallat algorithm is best, the short cycle based on wavelet packet algorithm is worst. The author analyzes the reason and makes some proposal.
A Piecewise Function Smooth Strength Envelope Model
Authors: Zhang Lei Yu , Zhuo Rui Hua , Liu Li Jian , Feng Shu Zhong
Published: June 2012

The method of trigonometric series is one of widely used methods for calculating artificial ground motion. But using this method the speed of time, it was found that the zero line must exist the phenomenon of drift. This text fore person the foundation of the research up, a kind of more perfect model of differentiable nonsingular strength envelope function is proposed .a better resolve this problem. Passing the calculation proved that the new method is reasonable and effective.
A Mesh Topology Approach for Bluetooth Scatternet Formation
Authors: Yu Chih Min , Lin Jyun Hong
Published: June 2012

This paper presents the Enhanced Bluetree, a mesh topology scheme for Bluetooth scatternet formation. The scatternet formation algorithm includes two phases. In the first phase, a designated node called the root starts to create a tree-shaped topology and in the second phase the tree-shaped topology is converted into a mesh-shaped topology. In addition, a return connection mechanism is introduced in this phase to generate more connection paths among the nodes. The mechanism contains two scatternet topology models including the slave/slave mesh (SSM) model and the master/slave mesh (MSM) model. The SSM Model builds a mesh-shaped topology by interconnecting more leaf nodes. On the other hand, the MSM Model connects additional intermediate nodes to establish the backbone connection in a mesh-shaped topology. Simulation results show that both the SSM and the MSM of an Enhanced Bluetree more effectively improve the network performance than Bluetree by significantly reducing the average path length.
Study on the Prediction Model of Paper Printability in Ink-Jet Printing
Authors: Chen Shuang Lian , Chen Guang Xue , Chen Qi Feng , Qu Zhen Cai , Xu Rui Xin
Published: June 2012

The influences of the paper properties on ink-jet printing quality are very complex. In order to predict the printing quality quickly and accurately, it is necessary to establish a mathematical model and an evaluation system, based on which we can estimate the paper used for ink-jet printing is suitable or not. In this paper, five kinds of ink-jet papers with different properties were chosen, and the properties including brightness (X2),gloss(X3),roughness(X4),air permeability(X5) and absorbency(X6), were tested; then ink-jet printing in the same conditions was carried out and different printing parameters were tested, including solid density(D),dot-gain(DG),print contrast(K)and hue(H). Through combining analysis of each single printing quality parameter with some paper properties by using PCA of SPSS, the correlation functions D/DG/K/H(X2, X3, X4, X5, X6) were obtained. Meanwhile, a comprehensive function Y(D, DG, K, H) involving the printing quality parameters was achieved through synthesis data processing of SPSS. This study shows the influences of paper properties on the printing quality parameters and their corresponding weights, and it also proposes a prediction model of paper printability, which can provide a theory reference for printing work in ink-jet printing.
A Modified PSO-BP Algorithm in Hydraulic System Fault Diagnosis Application
Authors: Dong Zeng Shou , Zhang Xiao Yu , Zeng Jian Chao
Published: June 2012

BP neural network for failure pattern recognition has been used in hydraulic system fault diagnosis.However, its convergence rate is relatively small and always trapped at the local minima. So a new modified PSO-BP hydraulic system fault diagnosis method was proposed,which combined the respective advantages of particle swarm algorithm and BP algorithm. Firstly, the inertia weight and learning factor of the standard particle swarm algorithm was improved, then BP neural network’s weights and thresholds were optimized by modified PSO algorithm. BP network performance was ameliorated. The simulation results showed that this method improved the convergence rate of the BP network, and it could reduce the diagnostic errors.
Design and Implementation of Intelligent Interactive Three-Dimensional Experimental Model
Authors: Ma Shuang Cheng , Fang Wen Bo
Published: June 2012

Introduced the design background, concept, function of intelligent interactive three-dimensional experimental model, and key technologies to achieve these functions on VB + OpenGL platform.
Remote Control Simulation System Based on PLC and King View for a Diesel Engine
Authors: Zhu Lei , Hu Da Bin , Xiao Jian Bo
Published: June 2012

A remote control simulation system is designed to resolve some problems in repairing diesel’s remote control system which makes good use of PLC in automation, combining the popular configuration technology. The system structure， hardware design and software design are introduced in shis paper. The results shows that the effect is remarkable in function replacement on the logic circuit module of the original system and can provide some intellectual support for upgrading the remote control system.
Study on Application of Numerical Manifold Method
Authors: Zheng Lei , Shen Zheng Zhong
Published: June 2012

Numerical manifold method (NMM) is based on the blocky theory which absorbed the advantages of finite element method based on the continuum mechanics, discontinuous deformation analysis method based on the non-continuum mechanics and analytic method. According to the finite covering technology of modern manifold analysis method, uniform solving format on continuous-non-continuous problems is established by taking the continuous and discontinuous cover function which can be used for the numerical simulation of large deformation and continuous-discontinuous deformation. The calculation program is worked out based on the method above and it is applied to the actual project.
Multi-Objective Robust Decentralized Control for the Interconnected Fuzzy Singularly Perturbed Models
Authors: Hu Ye Nan , Sun Fu Chun
Published: June 2012

A multi-objective robust decentralized control method is proposed for the interconnected fuzzy singularly perturbed models. Such decentralized controller can guarantee the whole closed-loop system is asymptotically stable even when the multi-time-scale subsystems are interactional. Besides, the disturbance attenuation performance, dynamic performance and control amplitude can be optimized synthetically. The simulations illustrate the effectiveness of the proposed method.
Complete Riemannian Manifold with Curvature Bounded from Below
Authors: Xue Qiong , Xiao Xiao Feng
Published: June 2012

In this paper, we study a complete -Riemannian manifold whose curvature bounded from below. Let be a compact totally geodesic submanifold of . Then, for any , we can make use of the first variation formula and the second variation formula of distance to prove that is bounded.
Synchronization of a New Four Dimensional Chaos System with Unknown Parameters
Authors: Zhou Xin Xiang , Xie Hong
Published: June 2012

This paper introduces a new four-dimensional chaos system which is generated by modifying Lorenz chaos system. Some basic dynamical properties are studied. Based on projective synchronization method, dislocated projective synchronization method is presented to achieve synchronization of the new four dimensional chaos system. Numerical simulations are given to show the effectiveness of this method.
An Optimization of Targeting in Chaotic Systems Based on Numerical Simulation
Authors: An Hai Gang
Published: June 2012

Chaos control is to adjust the chose system to the desired orbit through the tiny disturbance by using the extreme sensitivity and ergodicity. In this paper we improved the OGY method with multistep targeting. The result is more superior than the OGY method, even superior than the chaotic targeting.
The Simulation of Submarine-Launched Missile Out-Water Movement Based on MATLAB/Simulink
Authors: Lian Yong Qing , Tian Bing , Wang Shu Zong
Published: June 2012

According to the characteristic of out-water movement of submarine-launched missile, a mathematical model was developed. Then a simulation model was established in Matlab/simulink environment based on the mathematical model, and the simulation was made. The result of the simulation shows that the simulation model can describe the submarine missile out-water movement perfectly, and the study may provide powerful base to the submarine missile trajectory design.
Numerical Simulation of Outburst Prevention Effect of High-Pressure Mini-Jet Fracturing Coal
Authors: Gong Xue Min , Zhang Jia Yong , Guo Li Wen
Published: June 2012

Through ANSYS/LS-DYNA simulates mini-jet fracturing coal effect, this paper verifies that high-pressure mini-jet forms ahead hole on working face coal, which increases coal exposing area and relieves pressure inside the coal bed to creative conditions for gas relieving and flowing. Additionally underground stress, the coal around hole shifts to the hole space and enlarges the hole relieving pressure and gas exhausting scope further, which removes the coal outburst potential within the control scope and provides theoretical basis for studing the equipment of high-pressure mini-jet cutting hole against outburst.
Fast Volume Rendering Techniques for 3D Reconstruction of Geological Objects
Authors: Seng De Wen , Li Da Qing
Published: June 2012

The procedure of volume rendering techniques is introduced. The principles and methods of two kinds of different volume rendering techniques of 3D spatial data are discussed. Application of Marching Cubes (MC) algorithm in the modeling of geological objects is given. This algorithm is modified and improved in several aspects. The asymptotic decider algorithm is employed to solve the ambiguity problem and oct-tree structure is used to reduce the number of polygons generated, which will increases the efficiency of the algorithm. The improved algorithm is applied to real geological data obtained from an iron mine in China. Real data derived from an iron mine of China demonstrates the effectiveness and efficiency of the system and the algorithms.
Design of Peer-to-Peer Traffic Classification System Model Based on Cloud Computing
Authors: Liu Xi Zi , Xu Ya Bin
Published: June 2012

The advantages and disadvantages of mainstream peer-to-peer (P2P) traffic classification technology in the current application are analyzed. As existing traffic classification tools fail to meet the super flow, as well as continuous increasing of network bandwidth, a cloud-based P2P traffic classification system model is proposed, which use the distributed parallel computing architecture named MapReduce based on hadoop.
The Research Based on RBF Neural Network in the Power of Prediction of Grain Depot
Authors: Xiao Le , Hu Min Peng
Published: June 2012

According to the fact that the use of electricity in grain depot is nonlinear time series, the article introduces the prediction model of electricity based on Radial Basis Function Neural Network, and conducts the modeling and prediction by adopting the historical electricity consumption of a typical grain depot. As the result of simulation shows, the model obtains better forecasting results in grain depot electricity.
Design and Research of Digital-Museum Service System Based on VRML
Authors: Wu Chuan Min , Zhang Shuai , Qiu Jin Ming
Published: June 2012

Three-dimension scene simulation technology of virtual environment maybe widely applied in many fields such as city planning, tourist industry and virtual battlefield. The technique has been applied to the research of “Digital Museum” which can provide a new research topic in the today’s world. In allusion to the problem of Digital Museum GUI, Three-dimension Digital Museum modeling database and virtual scene is constructed through Maya; application environment is realized which using JAVA programming technique based on windows plat; some key technologies about how to realize the system are introduced, including building of 3D modeling databases, Multi-Texture based on Blaxxun/BS, Models simplification and validated them. The paper formed research and exploiting methods and technologies, which provide strong support of Digital Museum services system.
Particle Swarm Optimization for Ship Degaussing Coils Calibration
Authors: Yang Ming Ming , Liu Da Ming , Lian Li Ting
Published: June 2012

In this paper, we deal with the problem of the ship degaussing coils optimal calibration by a linearly decreasing weight particle swarm optimization (LDW-PSO). Taking the ship’s magnetic field and its gradient reduction into account, the problem is treated as a multi-objective optimization problem. First a set of scale factors are calculated by LDW-PSO to scale the two kinds of objective function, then the multi-objective optimization problem is transformed to a single objective optimization problem via a set of proper weights, and the problem is solved by LDW-PSO finally. A typical ship degaussing system is applied to test the method’s validity, and the results are good.
Optimization of Contour Path in Laser Processing Based on Dual Coding Improved Genetic Algorithm
Authors: Yang Jian Jun , Zhan Hong , Tan Ji Wen , Ding Yu Cheng
Published: June 2012

In laser processing, optimizing the shortest process time is not equal to optimizing the shortest path, and the spare travel time decided the process time. In this paper, an optimization model for contour path in laser processing is established, in which the minimal spare travel time is taken as objective function, and the improved genetic algorithm is designed to optimize the model. In the optimization of contour path, the processing sequence of loops and starting point in each loop are needed to optimize simultaneously, so the dual integer coding is adopted in the improved genetic algorithm. In the algorithm operational process, the methods of initial solution creating, crossover and mutation that suit with the problem are designed, and the infeasible solutions are avoided. The computing method of fitness value is adjusted, and the improved genetic algorithm takes on some self adapting capability. So the computational efficiency of the method is enhanced.
A Dim-Small Target Tracking Approach Based on Robust Hyperspectral Features
Authors: Yang Bin , Sheng Hao , Li Lin Yao
Published: June 2012

The dim-small target tracking is a central problem in several related applications. Subjected to the lack of objective information, traditional target tracking is difficult to meet the needs of dim-small target tracking. A dim-small target’s description based on robust spectral features is proposed to solve this problem. By creating a multi-dimensional feature space and extending the limited RGB information to the hyperspectral information, a new type of target’s description is presented to track the dim-small target with hyperspectral features.
Analysis of Structural Reliability Based on Stochastic Response Surface Method
Authors: Ying Liu
Published: June 2012

A system reliability analysis technique has been proposed in the paper, based on stochastic response surface method. Each input is translated into standard random variables, and the output is expanded into Hermite polynomial series. The coefficients of the expansion of the response are obtained by a regression method. The amount of calculation can be greatly reduced, compared to conventional reliability methods such as Monte-Carlo simulation. The proposed technique can be applied to any structural type.
The Calibration of Manipulator Based on Linear Precision
Authors: Li Wen Guang , Liu Guang Liang , Yang Dong , Chen Tie , Chen Wei
Published: June 2012

In order to improve the absolute accuracy of the robot, one new simple and inexpensive, yet accurate robot calibration method is presented. The process assumes the robot can move along a line in the robot’s workspace. The actuators remember the angle information of each joint, when the robot moves along the line. The date that obtained by this method, simplify the process of deducing the kinematic parameters. The paper establishes the evaluation function, which demonstrates the fitness degree of the robot’s position and orientation to the line. In the end, simulation method has been adopted to testify the method, and the method is shown simple and feasible.
Finite Element Analysis of Gear under the Pressure of Different Oil Condition
Authors: Zhao Hui , Wang You Qiang
Published: June 2012

The 3-D model of spur gear is created in SolidWorks software, the finite element analysis of gear under the EHL of different oil condition is made in ANSYS. During the finite element analysis, the numerical gear EHL film pressure is added, we can get this tooth loading stress and the impact of pressure on the gear is smaller under the starved oil condition. The results of the research will modify gear work environment and improve productivity with a certain reference value.
Research on Piezoelectric Transducer with Negative Impedance by FEM
Authors: Zhang Wen Qun , Wu Xin Yue , Cao Wen
Published: June 2012

Piezoelectric transducer with negative impedance matching circuit is put forward to enhance its performance in broadband frequencies. The typical multi-physics problem is coupled with sound wave equations, structure stress-strain equations, piezoelectric constitutive equations and electric ordinary equations, and it is analyzed with FEM in detail. Frequency response characteristics are simulated when shunted with negative-impedance in series. When proper negative synthesized elements are connected, the performance of low frequencies and bandwidth are enhanced obviously.
Research on Vacuum Sling Technology of Aeronautical Aluminum Alloy Low-Rigid Parts
Authors: Fu Chun Lin , Li Tie Gang , Wang Wan Shan
Published: June 2012

During handling airplane low-rigid parts, it often horizontally hanger it with rope or sling. Combined with frictionics, this article analyses the force in vacuum sling of aeronautical low-rigid parts and gets the corresponding conclusion to design hangers for reference.By establishing finite element model, the deformation of hoisting is static analysed by ANSYS.The research results is to provide necessary conclusions in effectively resolving the optimization of designing of vacuum lifting system.
Studies on Galloping of Iced Conductor Based on Tower-Line Coupling System – Mechanic Model and Intial Shape
Authors: Hu Hao Jun , Wang Yuan Han , Hu Zi Dong
Published: June 2012

A nonlinear finite element model of transmission tower-line coupling system including transmissions, towers and insulators is established based on ANSYS in this paper. Based on the second development at the ANSYS computing platform, finite element model of a Tower-Line Coupling system was established. The approach is applied to study intial shape of Tower-Line Coupling System. With the comparison with classical test cases, the approach was validated, performing high computing efficiency.
Back-Analysis Improved Particle Swarm Optimization Algorithm on Mechanical Parameters of Divisional Geotechnical Engineering Material
Authors: Fang Wei Hua
Published: June 2012

In order to obtain geotechnical engineering material mechanical parameters correctly by using back analysis and overcome shortcoming of ordinary Particle Swarm Optimization, Improved Particle Swarm Optimization (IPSO) algorithm is developed on the aspects such as Stretching Particle, Metropolis Algorithm and adaptive weight updating .at the same time, the algorithm is compared with Catastrophe Particle Swarm Optimization Algorithm (CPSO) and Quantum Particle Swarm Optimization Algorithm(QPSO). Also result of back analysis was compared with that of Ultrasonic Testing and that of mixed-model of dam monitoring. The analysis shows that IPSO has better performance than that of PSO and CPSO, and considerable performance with QPSO.
Effects of Plate Magnetic Field on Iron-Rich Phase of Al-20Si-10Fe Alloy during Solidification
Authors: Li Ming , Shi Zhi Ming , Fang Dong
Published: June 2012

This paper studies iron-rich phase transformation law and mechanism of Al-20Si-10Fe alloy under the effect of plate magnetic field. with optical microscopy(OM)，scanning electron microscopy(SEM),energy dispersive spectrum(EDS)and transmission electron microscopy(TEM). The results show that plate magnetic field is directly involved in the phase transformation of iron-rich phase, making iron-rich phase change from lath-shaped β-Al5FeSi to herringbone-shapedα-Al8SiFe2. The enforcement of plate magnetic field during the phase-transforming process of β-Al5FeSi→α-Al8Si Fe2makes block α-Al1.3Si7.8Fe2.1phase yield out. And precipitation of α-Al1.3Si7.8Fe2.1phase is affected by the transforming process ofβ-Al5SiFe phase→α-Al8Si Fe2phase.