bluuebunny/crossref_metadata_2025 huggingface dataset:
Strain Soft Numerical Simulation for Destroy Process of Subsea Rock with High Ground Stress and Hydraulic Pressure
Authors: Jiang An Nan , Song Zhan Ping , Wang Jun Xiang
Published: February 2011

Aiming at the characters of high ground stress and high pore water stress, which resulting in water invasion risk in excavation of subsea rock, FLAC is adopted to simulate the strain localization phenomena of surrounding rock with different pore water pressure and confining pressure. In calculation, the strain soft constitutive relation and “first loading then unloading” pattern are used. Simulation result states that, the bigger the confining pressure is the more destruct the surrounding rock is, and the water invasion risk is more serious. In high confining pressure condition, shortly after excavation, the destroy zone is thin ring, subsequently, the arc shoulder and arc bottom occurs shallow hole, the destroy zone increasing, which presents zonal disintegration. Pore pressure has obvious influence at plastic strain of rock, the high pore water pressure results in surrounding rock destroy zone enlarging, which changing the seepage field of rock, and probably lead to seepage instability.
Direct P-Code Acquisition Technique Based on the Data Resource Pool
Authors: Wang Na , Zhang Guo Min , Liu Jing Xia , Hu Bing Xin
Published: February 2011

In GPS system, the P-code can offer higher accuracy and better anti-jamming property than C/A code. However, the direct P-code acquisition is difficult as its long period and high chip rate. To solve the problem, the idea of expanding the code sequence to a three-dimensional space is put forward. The concept of data resource pool is defined, and the fast direct P code acquisition technique based on the data resource pool is proposed to improve the acquisition efficiency. By effect compression, the acquisition technique can enlarge the uncertainty search coverage and accelerate the search process. Furthermore, the technique based on the data resource pool can get different sub-algorithms according to the different compression method. The simulation results show that the proposed technique can achieve fast direct P code acquisition by the reasonable choice of compression parameters and the compression mode of code sequence.
An Integrated Multi-Objective Decision Model under Considering Stochastic Demand, Price Breaks and Disruption Risk for Order Allocation in a Multiple-Supplier Environment
Authors: Pan Wei , Wang Xian Jia , Zhong Yong Guang , Ran Lun
Published: February 2011

The objective of this article is to study the order allocation problems in a stochastic supply chain. This supply chain consists of a company that can order raw materials from multiple suppliers. At any time of a supply order, decisions have to be made by the company concerning the respective supplier order quantities and price breaks, so that the total purchasing cost and disruption risk cost are minimized, while maintaining a specified service level and quality. For this purpose, we have developed an integrated multi-objective decision model under random constraint to supply order allocation.
Research of Secure Scheme against Data Flooding Attack in Ad Hoc Networks
Authors: Zhang Li Cui , Wang Zhi Gang , Wang Tao , Sun Yong Shi , Xu Xiao Fei
Published: February 2011

DATA flooding attack is a serious menace for the security of on-demand routing protocol in Ad Hoc networks. In the paper, on the basis of three typical on-demand routing protocols AODV, DSR and TORA, we present a special security scheme against data flooding attack. Then we simulate the scheme on NS2 platform and compare two performance parameters before and after using the scheme: average delay and packet delivery rate. The results indicate that this project is comparatively effective to resist the DATA flooding attack.
Research on Four Type-2 Fuzzy Reasoning Models
Authors: Zhang Yun Jie , Chen Na Xin , Yan Peng
Published: February 2011

The previous discussion about type-2 fuzzy reasoning mechanisms just paid attentions to Mamdani models based on Mamdani implication operator. There is no doubt that the operator is justifiable, since such an operator possesses characteristic clipping effect, i.e. limiting the consequence membership function with the truth value of the antecedent. However, Mamdani implication operator does not uphold classical logic, i.e. it is in no agreement with the classic binary interpretation of implication. All of the Kleene-Dienes operator, Lukasiewicz operator, Zadeh operator and Reichenbach operator, which derive from equivalencies of the classic binary implication, have in common the feature of generalizing classic logic. This paper investigates type-2 fuzzy reasoning models and algorithms based on these four implication operators, respectively. In the view upholding classical logic, proposed models and algorithms seem to be more natural than of the Mamdani type.
Architecture-Centric Business Process’s Building and Optimization Design Supported by Volunteer-Oriented Internetware
Authors: Cao Bao Xiang , Xia Xiao Na , Yu Ji Guo
Published: February 2011

Expand the self-awareness and self-(decision-making) ability of agent, unify the definition about process, resource and service, then this paper builds volunteer-oriented agent internetware service logic, and designs the formal models’ design related to corresponding volunteer computing, furthermore, researches for its method sequentially. About architecture-centric service system, it is achieved as volunteer granularities and interactive relationship. On this basis, it gets to improve transparency of architecture about business implementation and autonomous ability of analysis decision-making.
Mechanism Design for Quality Control in ATO Supply Chain with Mixed Inspection
Authors: Huang Bo , Li Yu Yu , Dan Bin
Published: February 2011

This paper studies how to design a mechanism to control the quality of final product and components. Considering that ATO supply chain is composed of multiple component suppliers and a manufacturer, which is the core company and uses incoming inspection and quality tracing to control the quality of components, we presented a quality control model of ATO supply chain and obtain the optimal quality control mechanism consisting of component purchase prices, penalties on defect. We find that the manufacturer will choose the optimal quality level of ATO supply chain; the manufacturer can stimulate suppliers to choose the optimal quality levels of ATO supply chain through designing a reasonable purchase prices and penalties when their reservation payoffs are small, otherwise, it will design a profit transfer mechanism to modify the quality control mechanism, as a result, suppliers will choose the optimal quality levels and the manufacturer’s profit will be maximized.
Analysis and Simulation Computer Virus Propagation Models in the Network Environment
Authors: Zhou Juan , Chen Xiang Hu
Published: February 2011

A single model can hardly describe all viruses because computer viruses replicate in a variety of ways. Therefore, this paper proposes a model, which is based on multiple characteristics of the virus. Traditional models cannot effectively reflect the characteristics and process of computer virus propagation. This paper presents a new virus propagation model to describe the spread of viruses in the network environment. By solving the model equations, running data analyses, and conducting simulation experiments, this study collected the actual statistical data and compared them with the experimental data. The result indicates that the model can effectively reflect the characteristics of the spread of the virus. Therefore, this model provides a scientific basis for the computer virus prevention.
Robust H∞ Control for Stochastic Wind Power Generation Systems
Authors: Li Hong Xing , Fan Dong Hong , Zhou Xiao Zhu
Published: February 2011

This paper studies the design of robust H∞ controller for stochastic wind power generation systems. Assuming the system is convex uncertain，this article presents the H∞ performance criterion for uncertain stochastic system , deduces sufficiency conditions of the existence of H∞ controller with state feedback, and expresses them into a form of the linear matrix inequality (LMI), then utilizes schur complement lemma to transform them into LMIs which can be solved. At last we utilize standard digital software to get the disturbance attenuation level and the state feedback matrix.
An Uncertain Location-Allocation Model
Authors: Ding Si Bo
Published: February 2011

In service networks, the location of servers and allocation of demand nodes to them have a strong impact on the congestion at each server. The previous efforts in this area have concentrated on enhancing the reliability and quality of service with a probabilistic and fuzzy orientation. This paper considers the uncertain nature of such services and utilizes uncertainty theory to develop an uncertain queuing maximal covering location-allocation model. Our model considers one type of service call, one type of server and includes one constraint on the quality of queue length. To solve the proposed model, we design a hybrid intelligent algorithm which integrates 99-method and differential evolution algorithm. Finally, a numerical example is performed to show the application of the model and the algorithm.
EOQ Model with Controllable Lead Time, Setup Cost and Backordering Rate
Authors: Huang Bo , Meng Wei Dong , Li Yu Yu
Published: February 2011

This paper developed an EOQ model, in which the demand follows a general distribution, under the assumption that lead time can be shortened and setup cost can be reduced by added investment, and backorder rate depends on inventory level and price discount in the period of shortage. We proved the existence and uniqueness of optimal solution and proposed an algorithm searching for it. We find that order quantity, safety stock and inventory total cost can be normally reduced by shortening lead time and reducing setup cost, furthermore, backordering parameter and probability of shortage have a great impact on inventory total cost, so an enterprise should do its best to reduce probability of shortage, especially when backordering parameter is small.
A Design of a Method of Chaos-Based Secure Communication
Authors: He Hong , Dong Hong , Yang Tong , He Lin , Wu Yi
Published: February 2011

In resent years, secure communication is becoming one of the study hotspot in information safety. Secure communication is a way of correspondence, which transmits the desired information in the channel by adopting encryption measure, and then carries on decryption in receiver to recover the messages. Chaotic encryption is making use of random-like characteristic of the chaotic signal to encrypt the plaintext, and secure the real time communication. Taking one sine and square wave signal for examples respectively, the information can be encrypted by using the model of one-way coupled map lattice. Also, it is available to actualize encryption and decryption of the information by choose different keys when the model requires the matching keys precisely.
Course Evaluation Method Based on Fractional Correlation Distance and AHP
Authors: Zhao Chun Na , Zhao Yu , Luo Li Ming , Li Ying Shun
Published: February 2011

Course evaluation is an important and necessary means to improve the level of course. A new course evaluation method based on fractional grey relational distance and analytic hierarchy process (AHP) is proposed in this paper. Firstly, the proportion of the different influence factors can be determined through constructing judging-matrix and calculating-back-to-one and dealing with the checkout of coherence. Secondly, qualitative evaluation indicators are quantified by fractional-order system, and quantitative indicators are processed by idealization and normalization. And then association coefficient is defined. Finally, correlation distance degree is proposed. The new similarity degree reflects the relatedness and the different shape among a selected scheme, the ideal solution and negative ideal solution. Through the application to actual course assessment instance, the results show its practicability and effectiveness.
Evaluation of the Dielectric by Measuring Leakage Currents on Self-Built Capacitor-Like Devices
Authors: Yang Hsin Chia , Wang Mu Chun
Published: February 2011

In metal-insulator-silicon (MIS) structure, 100 Å Ta2O5 films are deposited on 1000 Å doped poly silicon as a bottom electrode layer, followed by 500 Å TiN metal as the top electrode [1]. The measured leakage currents as shown are either temperature dependent as the top electrode is negatively biased or temperature independent as the top electrode is positively biased. Therefore, the mechanism of current conduction is believed to be Fowler-Nordheim tunneling as the top electrode of the capacitor is positively biased. As for the top electrode is negatively biased, the temperature-dependent leakage currents satisfying reasonable arguments about dielectric constant suggest that the most probable conduction mechanism should be attributed to Poole-Frenkel emission.
Imbalanced Financial Credit and the Macro Economic Risk of China
Authors: Sun Li Jun
Published: February 2011

China's economic and financial imbalances become increasingly prominent. The imbalances of financial credit are showed as follows: urban-rural imbalance, regional imbalance, state-owned and private business imbalance, virtual-real economy imbalance, and internal-external economic imbalance. The imbalanced financial credit has increased the risk of China's macro-economy, reducing the effectiveness of monetary policy control. Therefore, we should promote the balanced development of financial credit, and so as to promote the balanced economic growth.
Vessel Attachment Nodule Segmentation Based on Mean-Shift and EM
Authors: Sun Shen Shen
Published: February 2011

For solving the segmentation problem of vessel attachment nodule, a new adaptive bandwidth chosen method based on EM is proposed and apply it into Mean-shift algorithm to segment vessel attachment nodule. This method has some advantages such as time low complexity and correct bandwidth when comparing it to the method of bandwidth chosen based on statistical analysis rule or optimized rule, Imposing the vertical orientation vectors of vessel’s gradient submitting to normal distribution and the vertical orientation vectors of nodule’s gradient submitting to uniform distribution, modeling the nodule connected vessel, and estimating model parameter by EM, extract bandwidth parameter in Mean-shift based on the weight of uniform distribution. The proposed method was tested on synthetic data set and the clinical chest CT volumes, and all the results were correct. The results revealed that the proposed method is successful in segmentation lung vessel attachment nodule.
Optically Powered Sensor for Measuring Differential Pressure with Optical Fiber Data Link
Authors: Ni Xiao Hong , Yuan Jing , Wang Jin Yu , Wang Yu Tian
Published: February 2011

The paper describes the operation principle of optically powered sensor to measure differential pressure. Its probe powered by LD light only consumes tens micro watt .The optical source for power and signal can be transmitted to and fro by a single multiple mode optical fiber. The power and signal lights have different wave length. The system design is introduced and its parameters are selected. The signal and power are transmitted by fiber, and the probe is low power consumption, so this pressure measuring system can work in flammable and explosive environment. Adopted differential measuring signal processing technology, its anti-noise ability is improved. Experimental results show that this system has high precision and high reliability.
Semi-Active Control for Large-Scale Aqueduct by MR Damper
Authors: Huang Liang , Wang Bo , Xu Jian Guo
Published: February 2011

The mechanical model of magneto rheological damper(MRD) is established, and the numerical simulation of seismic responses of aqueduct under earthquake excitation is performed with magneto rheological dampers. The results indicated that the magneto rheological dampers are effective in reducing the aqueduct response, the mitigation rate of semi-active control approaches with the active method The results from the present study may serve as a reference base for seismic design of large-scale aqueducts, and provide theoretical basis of aqueduct using semi-active devices.
Effects of Antioxidant Enzymes of Ascorbate-Glutathione Cycle in Soybean (Glycine Max) Leaves Exposed to Ozone
Authors: Zhao Tian Hong , Wang Jun Li , Wang Yan , Cao Ying
Published: February 2011

Open-top chambers (OTCs) were used to investigate the mechanism of antioxidant enzymes to eliminate reactive oxygen species (ROS) of plants under troposphere O3 stress. The results indicated that, compared to control, the O3 concentration of 80±10 nL·L-1 and 110±10 nL·L-1 induced an increase on malondialdehyde (MDA) content and a decrease on superoxide anion (O2)production rate and hydrogen peroxide (H2O2) content during the whole growth stage. Simultaneity, it showed a trend of increasing in earlier stage and decreasing in later stage of the activities of ascorbate peroxidase (APX), monodehydroascorbate reductase (MDHAR) and glutathione reductase (GR), while the dehydroascorbate reductase (DHAR) activity was increased in earlier period, decreased in middle periods and then increased in later period compared to control, respectively. The results show that elevated O3 concentration accelerates ROS metabolism rates, reduces the efficiency of antioxidant enzymes that can not tolerate oxidative damage caused by elevated O3 concentration, which represents injured affects to soybean.
An Efficient Algorithm for Linear Complementarity Problems
Authors: Zhang Li Pu , Xu Ying Hong
Published: February 2011

Through some modifications on the classical-Newton direction, we obtain a new searching direction for monotone horizontal linear complementarity problem. By taking the step size along this direction as one, we set up a full-step primal-dual interior-point algorithm for monotone horizontal linear complementarity problem. The complexity bound for the algorithm is derived, which is the best-known for linear complementarity problem.
Double Closed-Loop Control System of Bi-Direction Current Source Inverter
Authors: Kang Wei , Zhang Li Xia , Lei Zhen
Published: February 2011

The double closed-loop control system of current source SPWM inverter (CSI) is designed to meet the need of battery pack testing system. The battery pack has tiny inner resistance, back electromotive force and it acted as a comparative load which made the control system hard to design. The control system aimed at the specialty of the battery pack load and put forward a loop-locked control method based on dq coordinate conversion of CSI. Typical I and II control system is adopted to get a better performance. It increases the transform efficiency by SPWM and gets high power factor and high dynamic response quality by dq coordinate conversion. Simulations and tests proved the correctness and feasibility of the control system.
The Pruning Strategy of Decision Tree of SMT Assembling Quality Control Based on Data Mining
Authors: Jiang Hua , Liu Tong Lai , He Han Lei
Published: February 2011

Based on the establishment of data warehouse of the decision support model of the SMT assembling quality control, this paper relies its basis on the SLIQ algorithm of the decision tree method of data mining, improves the pruning strategy and conducts a useful exploration on how to form more effective decision-making basis of the quality control system of SMT assembling in order to improve the accuracy and predictability of decision analysis.
Passenger Congestion Mechanism Analysis in Comprehensive Passenger Transportation Terminal
Authors: Wang Hui Hui , Ji Chang Xu , Shan Dong Zhi
Published: February 2011

In comprehensive passenger transportation terminal, the passenger congestion is one of major problems and thus many ways have been taken to mitigate it. It is believed that an appropriate selection of congestion mitigation strategies comes from the sound understanding of the congestion characteristics. In this paper we analyzed the main reasons, simulated the process of its formation and aggravating by AnyLogic. Then we obtained the data about the varying passenger flow density changing along with time and place. Based on the simulation data, we research the characteristics of the congestion occurred in the transportation terminal from the perspective of the passenger flow density, which offers some references to mitigate the congestion.
An Agent-Based Simulation Model of the Economy: An Empirical Study of Negative Income Tax System in a Transition Economy
Authors: Wan Xiang Yu , Jia Peng
Published: February 2011

In this paper, we present an agent-based computer simulation model to analyze the dynamic relationship between economic growth and income difference in a transition economy and to evaluate the empirical effects of negative income tax system. Micro agents in the economy form the economic networks and enable the economy to evolve forward through the intelligential evolutionary system and mutual interactions between the agents. Based on the logical reasons of the transition economy, the model finally gives the results of the simulation: when the economy finishes rapid transition and enters into stable development, by implementing negative income tax system, government can effectively decrease income difference while at the same time maintain rapid economic growth.
Throughput Analysis of Group-Based DCA MAC Protocol in Cognitive Radio Network
Authors: Zhang Run Fu , Gao Zi Long , Huang Lian Fen , Xiao Ming Bo , Yuan Yan Nan
Published: February 2011

Recently, the CR (cognitive radio) technology is gathering more and more attention because it has the capacity to deal with the scarce of the precious spectrum resource. Within the domain of CR technology, channel management of CR is of utmost importance due to its key role in the performance enhancement of the transmission. A group-based DCA (dynamic channel allocation) MAC protocol in CR network has been proposed in this paper. It divides the channels into several groups which consist of the data channels and common control channel. We analyze the throughput under saturation condition, and the simulation results show that by using our protocol the throughput is improved obviously compared with traditional DCA.
Flow Shop Production Scheduling under Uncertainty within Infinite Intermediate Storage
Authors: Chen Qun Xian , Jiao Bin , Yan Shao Bin
Published: February 2011

As to current situation of research on production scheduling under uncertainties in enterprises, Flow Shop production scheduling model is established based on the theory of fuzzy programming, in which fuzzy processing time is considered and the duration time of intermediate is unlimited. The maximum membership function of mean value has been applied to solve the non-linear fuzzy scheduling model in order to convert the fuzzy optimization problem to the general optimization problem. Finally, a cooperative co-evolutionary particle swarm optimization algorithm based on catastrophe added to improve the diversity of the swarm (CCPSO) is adopted to solve Flow Shop Production Scheduling Under Uncertainty within Infinite Intermediate Storage and results are obtained effectively.
Empirical Research of Corporate Social Responsibility’s Influence on Stock Price
Authors: Xie Wen Wu , Xu Xiao
Published: February 2011

Corporate social responsibility (CSR) leads to some effects to companies, such as reputation, insurance and moral capital. These effects performed when companies experienced adverse events. The objective of this paper is based on this view. Author researched the influence of CSR on stock returns when the listed companies experienced adverse events. The empirical results showed that the influence of corporate social performance on economic performance was not a direct effect. The implementation of CSR, would lead to companies moral capital.
Study on Synthetic Assessment of Regional Sustainable Development in Qingyang Based on the Theory of Meta Index
Authors: Lu Chen Yu , Jiao Wen Ting , Zhang Wei Wei , Zhang Zi Long , Xue Bing
Published: February 2011

Based on meta index theory, this paper proposes an indicator system and a synthetic assessment model, which is used to assess the regional sustainable development on county level for Qingyang. And then, the paper respectively analyzes the characters of temporal and spatial evolvement on the subregional sustainable development in Qingyang from 1990 to 2008. The outcome shows that the integrated sustainability as a whole increased gradually from 1990 to 2008, where the driving force is due to the rapid growing of the economy and society along with the cost of abundant resources consumption and ecosystem degradation. At present, the integrated sustainability in some counties began to decrease.
Logistics Center City Planning of Liaoning Coastal Economic Zone
Authors: Zhou Xiao Ye , Ma Xiao Yun , Wang Lei , Li Kai
Published: February 2011

Logistics center city planning is a part of logistics system planning; it plays an important role in the development of Liaoning Coastal Economic Zone. This paper plans for the logistics center city of Liaoning Coastal Economic Zone with the growth pole theory and gray cluster model in order to acquire accurate result. Finally, basing the result of planning, this article analyzes logistics radiation region and the main varieties of logistics center city.
Design Calculations on the Recycle of Malysite in Sludge under the Synergistic Effect of Acidification and Ultrasonic
Authors: Zhou Bo , Liu Nai Rui , Mi Lei Lei
Published: February 2011

During the recycle process of malysite in sludge under the synergistic effect of acidification and ultrasonic, the features of malysite, the principles and steps of design calculations for sludge malysite are introduced on the basis of the previous experimental data. According to the function, the design process can be classified into pretreatment unit, coagulation treatment unit, malysite recovery unit, sedimentation and filtration unit. Design calculations are conducted in the light of the requirements on design flow, cycle time, influent water quality, material and experimental data. Design calculations and selections as well as device construction are accomplished based on the design criterion of water treatment. Ultimately, the parameters of each treatment unit responding to the design process are obtained through the experimental validation by means of the constructed experimental device.
An Empirical Study on the Internet Writing Behaviors in Chinese Context
Authors: Chen Chih Chung
Published: February 2011

The purpose of this paper is to explore the writing behaviors of Internet literature in Chinese environment, aiming to understand the basic personal characters, writing motivations and behaviors of Internet writers. Through both qualitative and quantitative researches, the study found a high consistency of personal characters within Internet writers. As the writing motivations of them, the statement that “writing is just the purpose itself” is the most popular. Meanwhile, most of Internet writers like to interact with other writers or readers. With the interaction, they revise their own writing topics and styles, which proves the Internet writing behaviors are not one-way communications, but part of a social exchanging processes.
Research on Uncertainty of Video Content Retrieval Based on Semantic
Authors: Zhang Jie Xin
Published: February 2011

Nowadays, video media data is already facilitates generation, transmission, storage and circulation on the global scale. Video data is geometrically fast as the rate of growth, the video data processing and analysis have lagged behind the pace of development in the growth of data, resulting in large amounts of data is wasted. Therefore, it becomes an urgent need for efficient retrieval of video data content. In this paper, firstly, starting from the color feature, the color space of digital mapping and semantic color space conversion technology is proposed according to the problem of Semantic concepts for video does not match with the perceived characteristics. And then we realize the mapping from the low-level features to high-level semantic. Finally, semantic rules of uncertainty reasoning based on cloud model established to complete video content retrieval.
Domain-Based Level Trust Manage Model
Authors: Ma Xiao Xue , Wang Zi Xian , Bian Jing , Liu Fei
Published: February 2011

Draw on the trust relationship of human society, domain model and domain trust are introduced to build domain-based level trust manage model (DLTMM). In various domains, according to physical services characteristics of their own, entities abstract representative attribution. According to their preferences the service requester preferences comprehensive evaluate the service attributions, and to determines whether transaction; After trading, the service requester will calculate the difference degree of quality of service according to the actual quality of service and the claimed quality of service, and then judge the trust degree of service provider. The simulation results show that the model can more accurate assessment of the trust entity, to some extent effective against malicious attacks, which proves the validity and accuracy of the model.
Innovative Study of Business Administration Training Modes: TRIZ Behavior Perspective
Authors: Dai Zhi Min , Guo Lu
Published: February 2011

Innovation lies in a breakthrough has its own unique view, concrete expression to generate a novel and unique, there is social value or value of the individual thoughts, ideas, methods and products. Business Administration field embodies the innovation and spark creative thinking. In recent years, it is not satisfactory under a variety of educational models in parallel quality of training. TRIZ innovation theory behavior perspective analysis can effectively identify the level of innovation capability in different groups of university students, a series of targeted training activities can practice in this basis in order to achieve creativity in our students the accumulation of knowledge, effective identified and enhanced innovation and practical ability and quality of innovation.
Research on Process of Impact and Control with Underwater Autonomous Weapon System
Authors: Peng Peng Fei , Liu Zhong , Jiang Jun
Published: February 2011

The basic composing and functions of underwater autonomous weapon system are analyzed in the paper. With researching on the process of action, the concept model of underwater autonomous weapon system is built up. The impact control method is deeply analyzed on the emphasis, and the model of impact process is put forward. The results of numerical simulation indicate that the impact process model and control method are effectual which can provide reliable theory for farther research on optimization control of system.
Perception System Design of Virtual Human by Object-Oriented Method
Authors: Dong Xia , Wang Ke Dian , Cao Jun Wei , Mei Xue Song
Published: February 2011

The perception module system of the virtual human in dangerous circumstances is studied mainly. The decision-making model based on emotion is created with mathematical method. The visual perception method is designed with geometrical algorithm, which can realize the determination of objects’ visibility. Perception module is designed with object-oriented method, including environment-information notification and virtual human’s responser. Communication between virtual human and nearby objects is communicated based on the perception module. The platform, which can simulate virtual human behaviors, is created with OpenGL technology by Visual C++6.0. The simulation results of virtual human behaviors prove that the perception system design of the virtual human is feasible.
Apllycation of Computer Tecnology in Chemical Engineering Thermodynamics
Authors: Gu Yong Qing , Zhang Wei , Li Li , Kang Kang , Wei Jun Peng , Cui Cheng Xing
Published: February 2011

This paper explicates the feasibility of the application of computer technology to Chemical Engineering Thermodynamics by means of two examples,i.e. the calculation of RK Equation through C language and the calculation of parameter of Willson model in binary system vapor-liquid balance in Chemical Engineering Thermodynamics through the nonlinear minimum square in Matlab.The results shows that the applicaton of computer can simplify the complicated calculation in Chemical Engineering Thermodynamics.
Study on the Controlling System of Particle Materials Separating Device
Authors: Li Li , Gu Yong Qing , Zhang Wei , Qiao Mei Ying , Shen Hong
Published: February 2011

The present thesis proposes the controlling program to separate the particle materials by making use of low-frequency ultrasonic wave, and elaborates the design of system circuit controlling the ultrasonic vibrating sieve. The ATMEGA16 SCM carries a series of functions into effect, such as, regulating the operating frequency of vibrating sieve, adjusting the power, protecting the circuit security and displaying the system parameter and so on, which raises the frequency stability and anti-jamming capability of the system so that it can be applied in places like coal mines, smelting works and construction sites and so forth.
An Empirical Study on Value Functions of Stock Markets
Authors: Wen Feng Hua , Rao Gui Tian , Yang Xiao Guang
Published: February 2011

As a core component of the prospect theory, a value function is employed to characterize the subjective experience of a decision-maker’s gain or loss. Previous empirical studies of the prospect theory were largely carried out through psychological experiments on individual decision-makers. In this paper, taking the whole stock market as an entity, we use the flow of information extracted by EGARCH Model as the proxy variable of change in wealth, and then use a two-stage power function as the representation of the value function to study the daily return data from the stock markets of 10 countries or regions. Empirical results show that the value functions of all the 10 stock markets present the shape of inverse-S, instead of the S-Shape of the value function generated by most psychological experiments on individuals.
A New Clock Synchronization Method for Multi-FPGA Systems
Authors: Zhang Cheng Chang , Yang Li Sheng , Hu Xiao Ping , Yang Hong , Li Ping
Published: February 2011

A novel clock synchronization scheme is proposed in this paper, which smartly takes the advantages of the inner delay-locked loop(DLL) to compensate for the delay generated by board-level feedback, combining with conventional external clock tree scheme to achieve the system clock synchronization.
Study on the Decision-Making of Coal Industry Technology Development Based on AHP
Authors: He A Hong , Luo Chuan Long , Hu Tian Bao , Wang Xiu Li
Published: February 2011

Using AHP to constitute a structure of coal industry technology system ,tried to obtain the contributions to the development of coal industry system by the subsystem, according to the analysis, put forward suggestion to the development level of coal industry technology and development strategy.
Ordering Policy for Deteriorating Items with Short Shelf Life Based on Lateral Transshipment
Authors: Bu Xin Yi , Teng Fang Zhou
Published: February 2011

It is usually observed in the supermarkets that display of deteriorating items. These items are with short shelf life and difficult to be transported and stored. A supply chain conceptual model which consists of one supplier and two retailers is structured. Based on analysis of deteriorating inventory model in exist, the transshipment between the two retailers is added into the supply chain conceptual model and a deteriorating model is developed in this paper which can reflect more accurately the relation among inventory level, demand rate, deteriorating rate and lateral transshipment rate. The ordering policy taking into account the shelf life constraint is investigated with two last ordering opportunities on condition that the planning horizon can be modified based on the lateral transshipment. At last, the conclusion implies that the ordering policy for deteriorating items with short shelf life based on the lateral transshipment can improve the profit for the retailer.
Theoretical Research for Short Pile
Authors: Kong Xiang Gang , Zhang Xin Gui , Niu Yi Chang
Published: February 2011

As a new pile type, short pile has been widely applied in many buildings especially high-rise buildings with good economic effect. However the theory of short pile has not been systematically established yet. In this paper, some interrelated theories and researches about short pile have been introduced include pile sinking theory, pile-soil interaction theory and settlement calculation research of pile foundation. At the end, some new directions of study about short pile have been pointed out.
Method of Slab Size Design Based on Maximum Yield Rate of Plates
Authors: Song Cheng Zhong , Shen Li Min , Zhang Qing Da , He Fang , Jiang Yi Min , Xia Yan Hong
Published: February 2011

To improve the yield rate of steel plates, a method of slab size design is proposed based on maximum yield rate of plates. It includes material transformations algorithm and optimization of slab selection. Many factors are considered in the model covering the equipment capacity, spread rate, compression rate, burning loss and cutting loss. Initially, all possible types of slabs are obtained through material transformations algorithm after the order input. This allows the eventual determination of the slabs of the largest yield rate through the optimization of slab selection. The experiments prove that the model can reduce a number of materials and lessen the pressure of the inventory. An effective increase of plate yield can be expected to improve the economic efficiency of enterprise.
The Analysis of Efficiency and Safety of the Plan of Quantity Adjustment in Heating System
Authors: Yang Xian Liang , Wang Song Ling , Li Tong , Ye Xue Min
Published: February 2011

To direct at heating system when it adopts quantity adjustment. Taking a community in Zhangjiakou as an example, using the method of Graphic theory to analysis and compare these two operation schemes: adjusting parallel pump's valve in shared pipeline and adjusting parallel pump's valve in non-shared pipeline. We can know that adjusting parallel pump's valve in non-shared pipeline is energy-saving, when the flow in pipe network is bigger than 79% of the boiler's total circulating water. There is a lowest limit of system's circulating water, when adopt the method that adjusting the parallel pump's valve in non-shared pipeline, otherwise it would damage the pump.
Analysis of Accelerated Life Test Data Involving Two Failure Modes
Authors: Jiang R.
Published: February 2011

This paper presents an approach to analyze accelerated life testing (ALT) data involving two failure modes. The approach first transforms the ALT dataset into two new datasets that correspond to individual failure modes. Each transformed dataset is modeled using a two-step procedure, and the resulted models associated with individual failure modes are combined into a competing risk model. The approach is illustrated using the ALT data of industrial heaters from the literature. The analysis shows that the shape parameter of the life distribution can change with stress level.
Multidisciplinary Fuzzy Optimization Design of Planar Linkage Mechanism
Authors: Zhang Jing
Published: February 2011

Based on the fuzzy theory and an idea of multidisciplinary design optimization, a fuzzy optimization model of multidisciplinary design is established. Fuzzy constraints are changed by a fuzzy comprehensive evaluation and an amplification-coefficient method. Using collaborative optimization and genetic algorithms, the multidisciplinary fuzzy optimum of planar linkage mechanism is achieved and a four-bar mechanism is given as an example. Two disciplines are involved in the design optimization of mechanism, i.e., kinematics and control. The numerical results indicate that the optimized mechanism not only satisfies the mechanism and control constraints, but also synthesizes approximate optimum value, and lays a foundation for the solution of more complex mechanical system.
Fault Diagnosis of Automobile Rear Axle Based on Wavelet Packet and Support Vector Machine
Authors: Chen Yong , Wang Bao Qiang , Yao Jin
Published: February 2011

This paper presents a fault diagnosis method of automobile rear axle based on wavelet packet analysis (WPA) and support vector machine (SVM) classifier. By Fourier transformation we find out the frequency band that can mostly reflect the rear axle failure state and use wavelet packet to decompose and reconstruct the vibration signals of rear axle, then extract each band’s energy and the variance, standard deviation, skewness, kurtosis of the specific frequency band to constitute a feature vector. We use the feature vectors which are come from some pieces of normal and abnormal samples to train support vector machine classifier for obtaining the best classification，at the same time, discuss the optimization of SVM parameters. Application shows that the method is effective in real time fault diagnosis for the automobile rear axle and has a strong anti-interference ability in different working conditions.
Fault Diagnosis of Diesel Engine Based on Wavelet Analysis, EMD and Neural Networks
Authors: Teng Xian Bin , Zhang Jun Dong , Zhang Shi Hai , Wang Ran Ran
Published: February 2011

Based on the complexity of surface vibration of diesel engine, the wavelet denoising method is used to process the monitor signal Preliminary. And then several vibration modes are isolated based on EMD method. Finally take the energy of these vibration modes as the input parameters to create neural network for fault diagnosis of diesel engine valve. The method has accomplished the fault diagnosis of the diesel engine merging many methods.
A Review of the Recycling of Construction and Demolition Wastes in Asphalt Pavement
Authors: Zhu Ji Qing , Wu Shao Peng , Zhong Jin Jun , Wang Dong Ming
Published: February 2011

The construction and maintenance of roads in China require large amounts of aggregates and mineral filler. The use of recycled materials helps conserving natural resources. However, the inferior road performance and additional costs have hindered the widespread use of construction and demolition wastes (C&D wastes) in applications such as surface layers of asphalt pavement that may represent a value application for C&D wastes. Waste concrete, waste bricks and waste glass are selected for this study; and the surface layers of asphalt pavement is considered here as value application. Although there is a large potential for supplying C&D wastes now, a few barriers have effectively depressed the recycling activities. Such barriers are described here and a brief discussion suggests ways of their removal.
Development of the New Vibration Exciter
Authors: Zhang Jun , Xue Guang Hui , Liu Di
Published: February 2011

Vibrating machine based on the needs of practical work, combining hydraulic technology and vibration technology, presenting a design of new stepless force regulation vibration exciter, introducing the design and features of stepless force regulation vibration exciter, expounding the detailed actualization method and physical design and realization process of stepless force regulation.
Hardware Design for Active Vibration Isolation Controller
Authors: Zeng Qiang Hong , Zhu Shi Jian , Lou Jing Jun , Xie Shui Qing
Published: February 2011

The active vibration control system are described in this paper, and the controller was designed for the active control system, the controller is based on ARM Cortex M3 microcontroller core, ICP series acceleration sensor is use for signal acquisition module, the A / D converter module was designed based on ADS1158 chip, the D/ A converter module was designed based on DAC8564 chip. The controller has the characteristics of high speed and versatility.
The Solution of Datamining Based on Clementine
Authors: Wang Dong Yun , Ren Zhi Jun
Published: February 2011

Datamining used by an enterprise is an powerful tool to provide quickly our enterprise useful information and improve well our decision making . Based on clementine, the paper has given a solution of datamining, has certain innovation, higher theoretical significance and practical value. This paper mainly researches how to build a datamining application based on clementine.
The Application and Research of the Fuzzy Control in the Servo System for Milling Machines
Authors: Tan Xiao Dong , Liu Xin , Liu Chen Bao , Zheng Ke De
Published: February 2011

Using the Fuzzy PID’s control method into the servo control system and the PID parameters can be adjusted real-time according to the simulation results, which corrects the system. Increasing the adaptabilities for the parameters’ real-time changings to improve the controlled object’s steady and dynamic performance, the system’s control precision and the capability of anti-jamming. With the help of MATLAB's FUZZY toolbox, the system’s control performance is tested in the aspects of system modeling and simulation.
The Return of ‘Decoration’ in the Context of Information Age
Authors: Huang Tao , Yang Hua
Published: February 2011

this paper mainly reviews and analyzes the design history on "decoration is evil” and makes a discussion about the contradiction. It avoids the misunderstanding about the comparison of paper-based text, combines contextual elements of the information age and figures out the different features of the current decorative performance and the possible space for multivariate development.
Research of Three-Dimensional Geometrical Modeling Based on the Reverse Engineering
Authors: Jiang Hong , Sun Wen Lei , Shi Yong Fang , Huang Yan Hua
Published: February 2011

This paper introduces the basic conception of the reverse engineering, process of digital measurement and 3-D modeling method based RE technology: one is based on point-curve-curved surface reconstruction, and the other is based on point-curved surface fitting directly. According to the first method, the processes of data gathering, cloud data processing and 3-D model rebuilding are introduced through reconstructing the 3-D models of the gauge board and left board in Imageware and UGNX. Using the reverse engineering technology in product design will shorten the period of developing a new product and accelerate it’s response to the market.
Optimization for Laser Welding Fillet Joint Based on Response Surface Method
Authors: Zhang Xiao Yun , Zhang Yan Song
Published: February 2011

The wide use of galvanized steel in automobile manufacturing brings much challenge to the roof to body-side laser welding process. Fillet joint is an effective way to solve this problem such as pore in laser welding process. However, there is little research on this type of complicated joint process. Focused on this problem, take metallographic size of weld seam as the weld quality criteria, response surface methodology (RSM) is used to study the influence of laser welding parameters on weld seam quality. Finally, the optimum welding parameters are concluded to give technical instructions for the plant production.