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Latest Science Articles (Latest updated 2012-01-27 17:20:36)
Research on Smart Characteristic of Conductive Asphalt Concrete - Submitted On: 01/27/2012 - Asphalt concrete has been widely applied in the pavement of highway and bridge. The conductive behavior of asphalt mixture can be improved with the addition of conductive materials, thus the self-monitoring material can be obtained. The moni....
Simulations and Experimental Studies of Valve-less Micropumps Based on MEMS - Submitted On: 01/27/2012 - In order to realize the demand of the quantitative transportation in the microfluidic system, the theoretical analysis, simulations and experimental studies of valve-less micropumps based on MEMS are developed. Diffuser-nozzle micropumps are....
Research on Adaptive Multi-Channel Acoustic Echo Cancellation Theory and Its Applicaiton - Submitted On: 01/27/2012 - Echo in telephones is generally undesirable and inevitable. With the wide application ofteleconference and hand-free systems, the acoustic echo cancellation becomes heat-topic atabroad. However the research results of multi-channel acoustic....
Auto-disturbance Rejection Control and H_∞ Robust Control of Shunt Type Hybrid Active Power Filter - Submitted On: 01/27/2012 - Active power filter is considered as the most effective method to harness the seriouspower pollution, it is also an advanced power electronic device, which has many advantages and favorable prospects compared with some conventional measures.....
Research on Faulty Test Pattern Generation Methods for Digital Circuits - Submitted On: 01/27/2012 - IC industry is a fast growing field for the world economy. It is essential to ensure theirreliability and quality. While IC manufacturing testing is one of important means of onlyshipping the good products. Many tasks essential for developin....
Preparation and Study of Friction and Wear Mechanism of Fe-Al Intermetallic Base Friction Material - Submitted On: 01/27/2012 - With the rapid development of automobile industry, especially the trend towards higher speed and heavier load for the automobiles, there is an increasingly high standard for friction materials. Careful research on friction materials has been....
Study on Stochastic Nature of Gravel Bedload Transport - Submitted On: 01/27/2012 - With the stratagem on the development of western China further carried out, in the research processes of development and protect of mountain rivers, the law of the flow and sediment movement in a gravel river is further becoming an important....
Preparation of Lithium Ion Battery and Research on Gel-type Polymer Electrolytes - Submitted On: 01/27/2012 - Since the birth of lithium ion batteries in 1990s, they have been developed very rapidly due to their predominate advantages, such as high voltage, high energy density, better cycling performance, and friendliness to environment. So far, the....
Researches and Applications of Some Key Interactive Technologies for Intelligent Education Platform B - Submitted On: 01/27/2012 - The Internet and the education will be two important impelling forcesof social progresses in the 21st century, and the network-based distancelearning is the perfect union of these two impetuses. The modern distancelearning is a new education....
Theoretical and Empirical Study on Intelligent Navigation of Hypermedia Information Space - Submitted On: 01/27/2012 - The scale of hypermedia information space is more and more big, and structure becomes complex day by day, and function and service pattern are more renovate, rich and colorful. In such information space, how to present information resource t....
Research on Godson-2 Multithreading Processor Technique - Submitted On: 01/27/2012 - With the development of VLSI technology, a single chip can contain over one billiontransistor. How to utilize the available transistor to design high performance processor hasbecome a hot spot of research activities in computer architecture....
Study on Dynamics and Design Theory of Fuze Ball Rotor - Submitted On: 01/26/2012 - The fuze ball rotor is one of typical primary explosive safety devices in the fuze ofspinning projectile. It not only can ensure primary explosive safety, but also is one ofarming delay devices. In order to look for the means to delay the ar....
The Crystallography, Magnetic, Magnetocaloric Properties and Strengthing of Gd-based Solid Solution A - Submitted On: 01/26/2012 - In this paper, the recent development in the exploration of new magnetic refrigerating materials near room temperature was summarized. An evaluation about magnetocaloric effect of those materials was made based on the thermo-dynamic principl....
The Study on Fluidization Simulation and Agglomeration Behavior in Fluidized Bed - Submitted On: 01/26/2012 - Due to the excellent characteristics in such as mixing, heat and mass transfer, the gas-solid fluidized bed (FBC) has been widely used in coal combustion. While engineers are still facing series challenges during the commercializing and scal....
Research on the Key Technology of Content-Based Image Retrieval - Submitted On: 01/26/2012 - Due to the development of multimedia and Internet techniques, rapid and effective searching for desired images from large-scale image databases becomes an important and challenging research topic. In this dissertation, lots of exploratory re....
Semantic-based Geometric Disciplinary Knowledge Platform - Submitted On: 01/26/2012 - The discipline knowledge is the most fundamental common knowledge forhumanity. How to use modern information technology to integrate organicallyand provide personalized service for knowledge learners or disseminators, is amajor subject of kn....
Research on the Digitalization Technologies of "Differentiation of Syndromes by Observing Eyes" - Submitted On: 01/26/2012 - The digitalization of Chinese medicine diagnoses has becoming a hot topic in TCM andcomputer communities with recent progress of electronic and computer technology.Differentiation of syndromes by observing eyes is one kind of diagnosis by ob....
Research on Road Scene Interpretation Techniques for Intelligent Vehicles - Submitted On: 01/26/2012 - The development of Intelligent Vehicles (IVs) has imposing on the defense, society,economy and academy, and becomes the tactic research object of high technology of allcountries. With the promotion of urgent demand on the military, civilian....
Research on the Constructing Monitoring Method and Its Engineering Application for the Concrete-Fille - Submitted On: 01/26/2012 - Concrete-filled steel tubular (CFST) structure, getting developed recently in China, is a new kind of technology applied to the engineering project of the long-span arch bridge. This structural model of bridge is of the characteristics of hi....
The Inductive Setting Technique of Multi-tube Rocket Fuze and Flying Time Correcting Method - Submitted On: 01/26/2012 - With the transformation of war form from mechanization to informationization, precisionguided munition has become more and more important in warfare. The enemy's air attacktargets are main cities and key area. The ordnance equipment adaptive....
Some Theoretical Studies of Elman Neural Networks and Evolutionary Algorithms and Their Applications - Submitted On: 01/26/2012 - Computation Intelligence (CI) is the theory and method of information obtaining,processing and applying by simulating human's intelligent mechanism or living'sevolution processing or human (or other species)'s intelligent behavior on modernc....
Research on the Techniques of Compute-Type Subjective Questions in Homework System - Submitted On: 01/26/2012 - Students' homework and its correcting are very important teaching process in college education. A great deal of research indicates that the behaviors of both students and teachers have effects on students' studying qualities. Compared with h....
Image Processing Technique Research Based on Wavelet Transform - Submitted On: 01/26/2012 - Wavelet analysis is internationally recognized up to the minute tool for analyzing time frequency. This paper discusses the technique of image processing based on wavelet transform.Wavelet image de-noising has been well acknowledged as an im....
Research on Pedestrian Traffic Characteristics in Special Events - Submitted On: 01/25/2012 - Effective pedestrian traffic management, planning and control are needed in crowded special event, which also needs good pedestrian traffic service in the whole course. Otherwise, pedestrian will meet inconvience and uncomfortable environmen....
Research on Key Techniques of Short-Term Traffic Forecasting Toward Vehicle Navigation System Applica - Submitted On: 01/25/2012 - In recent years, following the unceasing enhancement of city motorization level as well as the gross quantity of personal Car climbs rapidly, the Beijing Urban traffic demand has been growing continually, but the land resource, the traffic r....
A Research on Effect of Foreign Direct Investment on China's Automobile Industry - Submitted On: 01/25/2012 - This paper summarized in the traditional method and statistical analysis based onthe theory based on FDI, economic theory, The industry economics and managementscience theories and methods related to the impact of FDI in China's automobilein....
Research on the Buried Pipe SIM System Based on the Combination of Acoustic Signal Detection and Dete - Submitted On: 01/25/2012 - Scientists have pay attention to the measurement of water pipe leak, which has brought a series of serious aftereffects including the daily living, work and industry. The advance technology of pipe detection: SIM (structural integrity monito....
A Study on the Application of Support Vector Machine in Advanced Control - Submitted On: 01/25/2012 - This thesis studies the application of support vector machine (SVM) in the area of advanced process control. SVM, which has simple topological structure and good generalization capability, was put forward by Vapnik et. al. And it's a new and....
Development of a Soft-body Peristaltic Micro-robot - Submitted On: 01/25/2012 - The evolutionary process over hundreds of millions of years has endowed the animals with high efficiency of locomotion, adaptation to the specific different environments and some extent of intelligence. Development some kinds of bio-robots b....
Theory and Method Reasearch of Safety Assessment of High Rock Slope Based on Displacement Information - Submitted On: 01/24/2012 - The stability of rock slope essentially depends upon deformation. Inquiring the deformation condition of slope in different phase is important to appraising the stability of slope. As the important tool of exactly evaluating the alteration o....
Study on Material Damping of Reinforced Concrete and Concrete-Filled Steel Tube - Submitted On: 01/24/2012 - Damping is not only the parameter characterizing the energy dissipation in vibration of systems, but also an important factor affecting the dynamic and seismic response of structures. It is difficult to obtain the uniform understanding about....
Study on the Updating Control and Management of Water Right of Tarim River Basin - Submitted On: 01/24/2012 - According to the present practical situation of water resources management ofTarim River Basin, the updating control and management of water right based on theinitial water right allocation of Tarim River Basin is studied in this dissertatio....
Mathematical Modeling of Electronic Electro-Pneumatic Inverter with Membrane and Its Structural Optim - Submitted On: 01/24/2012 - In process control system, popular automatic mechanism is controlled by current signal which can be processed easily during transmission, and executed by pneumatic signal which is safely in nature at present. Electro-Pneumatic Inverter is de....
Research on MAC and Routing Technology in Wireless Ad Hoc Networks - Submitted On: 01/24/2012 - Compared with traditional Internet and wireless networks, wireless ad hoc networks havegreat challenges. Wireless ad hoc networks are typically characterized by infrastructureless ,self-organizing, multi-hop routing, dynamic topology, wirele....
The Research about the Noise for the Reliability of High Power Semiconductor Laser and Bipolar Transi - Submitted On: 01/24/2012 - widely used in optical fiber communication, optical sensor, informationmemory, medical treatment, pumping solid lasers and optical fiberamplification. The quality and reliability of semiconductor lasers isimperative in all the applications.....
Studies on Fast Algorithms of Time Domain Integral Equation and Their Applications - Submitted On: 01/24/2012 - Marching-on-in-Time (MOT) based on time-domain integral-equation (TDIE) solver has the potential to analyze large-scale electromagnetic compatibility (EMC), electromag-netic pulse (EMP), broadband antenna or radar cross section (RCS) problem....
Research of Insulator Contamination Grades Detection Method Based on Infrared Image and Artificial In - Submitted On: 01/24/2012 - With the increasingly aggravating of environment pollution and the continuously expanding of power system scale, flashover of contaminated insulators occurs frequently. It seriously affects the security, the stability and the reliability of....
Development of Surface Tension Measurement System with Surface Laser Light Scattering Method - Submitted On: 01/24/2012 - Surface tension is a thermophysical property of fluids, and is used in many engineering applications such as thermal and chemical engineering etc. There are many ways to investigate it, but because of the limits of theoretical and half-empir....
Study of LD Side Pumped High Power All-Solid-State 532nm、355nm Lasers - Submitted On: 01/24/2012 - Diode-pumped all-solid-state lasers (DPSSL) have more advantages than traditional lamp-pumped laser, such as high efficiency, compactness, high stability, and long lifetime. All-solid-state green and ultraviolet lasers have become an enthusi....
Performance Analysis and Dimension Optimization of 2-DOF Parallel Manipulators - Submitted On: 01/24/2012 - Parallel manipulator has many advantages that serial manipulator does not possess,so they can compensate for each other in the practical application. 2-DOF parallelmanipulator plays a very important role in the family of parallel manipulator....
Analysis of the Influence of Network Transmission on Control System Performance and Studies on Contro - Submitted On: 01/24/2012 - Control systems wherein a network is used as a communication channel totransfer information among components are called networked control systems(NCSs). The use of networks in control systems enables resource sharing and mutualmaneuverabilit....
Resourch on Algorithms and Applications of Public Key Cryptography Used in Ubiquitous Computing Syste - Submitted On: 01/24/2012 - With the growth of E-Business and wireless communication, a trusted WPKI( Wireless Public Key infrastructure) must be established on ubiquitous computing systems to enable the privacy of private information and implemention of E-Business, wh....
Research on Post-processing Techniques in DCT Compressed Image Communication - Submitted On: 01/24/2012 - Sound, text and image are three kinds of information, which are oftenencountered in daily life. Because the image information has stronger characteristic ofintuition than that of others, it has been the main information source for people toa....
Investigation on Mechanism of Al-N Co-doping p-ZnO and Its' Related Devices Application - Submitted On: 01/24/2012 - In recent years, wide band gap semiconductor materials zinc oxide (ZnO) becomes to attract much more attention than ever before. ZnO is a kind of II-VI compound semiconductor with a wide direct band gap of 3.37 eV at room temperature (RT) an....
Research on Key Technologies in TRIZ for Multi-Contradiction Oriented Problem - Submitted On: 01/24/2012 - TRIZ (Theory of Inventive Problem Solving) is a kind of generalized theory for product innovation. The design contradiction is the basis of TRIZ defining technical questions, and the product innovation mainly lies in discovering and resolvin....
Study on Robust Control for Permanent Magnet Linear Motor Servo System - Submitted On: 01/24/2012 - Study on robust control for permanent magnet linear motor servo system is a comprehensive project, which is on the basis of robust control theory, permanent magnet linear motor as controlled plant, numerical controlled machine tool as a back....
The Control Strategy and System Realization of High Performance Variable Frequency Speed Regulation o - Submitted On: 01/24/2012 - The electric drives are widely used in industry, agriculture, national defense and other fields of social life. At present, about 70 percent of the electric energy in my country is used by electric motors, and more than 80 percent of electri....
The Study on HFC125 Critical Heat Pump - Submitted On: 01/23/2012 - The heat pump has great advantage as an energy saving technique in protect environment and save energy, because it can produce more energy than its running power. The heat pump has been used in air conditioning area very well, and has produc....
Research on Virtual Machining Key Technologies in Networked Manufacturing System - Submitted On: 01/23/2012 - With the development of knowledge economy and information technology, networkedmanufacturing is widely researched and applied. It is now becoming a new paradigm formanufacturing industry. Because product development activities are distribute....
Research on Key Technologies of Integrated Control System of Numerical Control Device in Manufacturin - Submitted On: 01/23/2012 - At present, there are many problems such as the coexisting of many differentkinds of control systems, the disable execution of remote monitoring and remotemaintenance, the difficulties of direct information exchanging and integration withind....
Research on Analysis of Fair Exchange Protocols - Submitted On: 01/23/2012 - With the development and popularization of Internet, electronic commerce has become one of main forms of modern economic activity based on Internet.Electronic commercial transactions involve multiple players who mutually distrust one another....
All Phase FIR Filter Banks - Submitted On: 01/23/2012 - First, based on the architecture of the APDFT filter, this paper brings out a newtype of zero-phase digital filter called the windowed all phase DFT (WAPDFT)digital filter, by windowing the input and/or output data of the DFT/IDFT blocks int....
Research on Architecture-Based Software Dynamic Evolution - Submitted On: 01/23/2012 - Variability is an essential characteristic of software systems. In order to adapt themselves to the opening environment of Internet and the variable requirements of users, software systems should be able to adjust themselves dynamically. Sof....
Experiment Investigation of Dynamic Characteristics and High Speed Dynamic Balance of a Aeroengine Fl - Submitted On: 01/22/2012 - Rotor is an important component of aeroengine. With the development of science and technology, the performance of turbine shaft aeroengine is constantly improved, its power turbine rotor is developing towards high speed and large length-to-d....
Numerical Simulation of the Cavity Flow Oscillation Based on the Fully Implicit Algorithm - Submitted On: 01/22/2012 - Cavity flow problems exist in many aerospace applications with a great engineering value; for example, there are highly unsteady fluid motions around aircraft weapon bays and wheel wells. Additionally, there are many theoretical issues in th....
Study on Logistics Performance Measurement System for Manufacturing Enterprises - Submitted On: 01/22/2012 - The enterprise is faced with the globalization of market competition and the challenge of delivery time, quality, service, individuation, and cost of product with the development of technology,economy globalization and electronic commerce. I....
Information Fusion-based Methods for Image Understanding - Submitted On: 01/22/2012 - The essential task of image understanding is to interpret the acquired image scene accurately. Since image data are some extent fuzzy, the processing of the uncertainty information is of vital importance to all three major steps of image und....
Study on Power Estimation Methodology & Correlative Problem in VDSM Integrated Circuit - Submitted On: 01/22/2012 - As the rapid development of the IC technology, IC industry has entered the deep-sub micro and nanoscale era. However, the huge gap between technology and design capability brought new challenge to the design methodology. In the past, the VLS....
Study on Integrated Maintenance Management System of Power Equipments for Process Industry - Submitted On: 01/22/2012 - For process industry, such as power plant, metallurgical plant, chemical plantand so on, MRO(Maintenance, Repair, Operation) of productive equipments,especially power equipments, are justifiably very important to enterprise'sproductive activ....
Development of High-resolution AFM and Its Application to Mechanics and Small Molecular Structure - Submitted On: 01/21/2012 - With the emergence of surface analytical instrument - Scanning Tunneling Microscope (STM) and Atomic Force Microscope (AFM) in 1980s, nanotechnology has developed rapidly in the past 20 years. STM and AFM are widely used in many fields for t....
Immobilized Laccase on Metaltetraaminophthalocyanine -Fe_3O_4 Nano Composites and Their Application i - Submitted On: 01/21/2012 - The organic-inorganic nano composite is a novel material, formed by the nanoscale coplex of inorganic nanoparticles and the organic substance. It is an extremely promising research direction to apply this kind of materials to the field of li....
Study of Dynamic Design of Jaw Crusher New Model - Submitted On: 01/21/2012 - Based on 3D modeling technique, vibration experiment, vibration theory analysis, FEA and fuzzy random theories, these following aspects of dynamical design of PEWA90120 out moving jaw uniform pendulum crusher new model have been studied.1. T....
On Rerouting and Scalar Anonymity in Anonymous Communication Systems - Submitted On: 01/21/2012 - With the rapid progress of information technologies, computer networks have been widely used in communications among individuals, parties and governments. Concerns on security of network and privacy of communication have been grown. Anonymit....
Study on Native XML Database Based on Product Life Cycle Data - Submitted On: 01/21/2012 - Sharing and exchanging product data is one of the key techniques on realizing enterprise information system. The main method is achieved by storing product data on Relational Database (RDB) currently. But the type of product data is complica....
Gabor Wavelets Transform Based Face Recognition - Submitted On: 01/21/2012 - Face recognition is a biometric technology possessing great developable potential, researching on the face recognition technology has great theoretical and practical values. In recent years, face recognition technology has achieved unprecede....
Research on the Concept of Mass-Energy Transfer On-Orbit and Technology of Space-Base Pinpoint Attack - Submitted On: 01/21/2012 - At present, the application advantages of space technology are increasingly significant in military struggles. Space confrontations are inevitable. Researches on space confrontation related technologies are of vital importance in gaining the....
Research on Methods and Applications of Reliability Growth Test for Solid Rocket Motor - Submitted On: 01/21/2012 - During the development of solid rocket motor (SRM), the reliability growth tests are adopted to eliminate the weaknesses in SRM design or manufacture. As a result, the SRM reliability is improved gradually. The reliability growth test data o....
Research on the Theory and Application of Some Key Technologies in the Multidisciplinary Design Optim - Submitted On: 01/21/2012 - The system design of flight vehicle involving many disciplines coupled with each other, computation complexity and communication complexity makes the overall design process extremely complex. In order to reach the highest potential benefit o....
Study on the Key Problems of Ultra-fast Photoconductive Switch and Its Testing System - Submitted On: 01/21/2012 - Thin titanium film can be oxidized completely with scanning probe microscope (SPM) via anodic oxidation to form Metal-Insulator-Metal (MIM) structure to fabricate various nanometer scale electronic and opto-electronic devices, such as such a....
Preparation and Photocatalysis Behaviors of Supported Coupled-Semiconductors with Metal Modified for - Submitted On: 01/21/2012 - Photocatalytic reaction for synthesizing methacrolein from C3H8 and CO2 onsemiconductors has a great significance in utilization of alkanes and protection ofenvironment. In this thesis, we extended this study to the gas-solid reaction system....
High Power Series Resonant Injection Type Hybrid Active Filter - Submitted On: 01/21/2012 - This dissertation is focused on SRITHAF — series resonant injection type hybrid active filter, a novel device for substation harmonic elimination. The study mainly includes the new topology, the design optimization of output filter and snu....
Study on Automobile Air-conditioning System Applying the Cold Energy of Green Auto Fuel-Liquefied Nat - Submitted On: 01/20/2012 - Natural gas is widely used in recent years to solve the problems of shortage of petroleum resources and the severe environment pollution in many areas. Air pollution caused by auto exhaust gas will be decreased when natural gas is used as th....
Short and Long-Term Behavior of Concrete Box Girders - Submitted On: 01/20/2012 - Thin-walled concrete box girder prestressed with externally CFRP tendons would become a good structural style for the newly built bridges and the structural strengthen of existing bridges, it has no report on the research so far at home and....
Research on the Robust Evaluation Method of Operational Effectiveness of Weapon Equipments and Its Su - Submitted On: 01/20/2012 - With the increasing complexity and uncertainty of the modern information warfare, the higher requests are needed to demonstrate and develop the weapon equipments under this condition. Evaluating the operational effectiveness of weapon equipm....
Research and Implementation of Digital Television Source Decoder Based on Generic DSP - Submitted On: 01/20/2012 - In recent years, the television system has gone through the analog black-white television to the analog colored television and to the digital television. At present, the television system has been changed from analog television to digital te....
Studies on Tremendous Amounts of Data Oriented Rough Set Theory and Method - Submitted On: 01/20/2012 - Since rough set has been presented its theory and method get development continuely. In some aspects rough set overcomes many deficiencies in traditional data analysis, so it has been given extensive attention at home and abroad. The dissert....
Research on Cross-correlated Noise Problems and Correlated Effects of Quantum Noise in a Laser - Submitted On: 01/20/2012 - Over the last decades, amazing progress has been made in the study of stochastic dynamics, that has developed into a vigorous branch in statistical physics. That Fluctuations become the sources of order implies noise can play active or const....
Study on Postharvest Physiology and Preserving-freshness of Fresh Vegetable under the Condition of Si - Submitted On: 01/20/2012 - For the first time we studied on the postharvest physiology and preserving-freshness in leafy and fruit vegetable usually used in warship under simulated condition of cold storage of warship and explored fresh vegetable ensuring during warsh....
Experimental Research on Adherence Property of Fresh Fiber Reinforced Concrete to Old Concrete - Submitted On: 01/20/2012 - Bonding Fresh concrete to old concrete is a discussible question that often related to actual project of concrete engineering. The study on behavior of adherence interface has important value in terms of theory and engineering application. R....