bluuebunny/crossref_metadata_2025 huggingface dataset:
Graphene Oxide Reinforced Degradable Polyurethane for Anterior Cruciate Ligament Tissue Engineering
Authors: Zhang Jing Ling , Guo Lin , Chen Long , Li Shuai Hua , Wu Gang
Published: February 2014

Here we report the development of Poly Urethane (PU)/ graphene oxide composite used as the scaffold of anterior cruciate ligament tissue engineering. The influences of the GO on the composite were studied by FTIR, SEM and XRD. The Youngs modulus of the composite is 30.6 MPa compared to that of PU`s 6.8 MPa. The GO induced heterogeneous crystal increasing should be the reason for the composite modulus improving, as well as the interaction between the GO and PU. The good biocompatibility of the composite testified by cell viability experiment indicates the promising candidates of the material as the ACL tissue engineering scaffold.
Mixed Self-Assembled Monolayers Modified Electrode for the Detection of Human Neutrophil Elastase
Authors: Li Wei Kun , Yang Yu Jun
Published: February 2014

A novel electrochemical sensor has been developed based on the specificity of the molecular recognition of human neutrophil elastase (HNE) provided by its specific inhibitor, sivelestat. First, the gold surfaces were modified with homogeneously mixed cysteamine and 6-ferrocenyl-1-hexanethiol (FcHT) to generate a mixed self-assembled monolayers (mSAM) modified Au electrode. Then the sivelestat was covalently attached to the mSAM by its carboxylic group to the amino group with the use of activating reagents: 1-ethyl-3(3-dimethylaminopropyl)-carbodiimide (EDC) and N-hydroxy-sulfosuccinimide (NHS). Cyclic voltammetry (CV), differential pulse voltammetry (DPV) and electrochemical impedance spectroscopy (EIS) was used to monitor the sensor assembly and the recognition of HNE on surfaces. Upon the selective binding of HNE to the surface bound sivelestat, the redox potentials of the ferrocene moiety of the mSAM shifted positively together with a decrease of the peak current. A clinically relevant range of HNE concentrations was successfully detected in pH 7.4 phosphate buffer.
Study on Milk Protein Hydrolysis of Infant Formula
Authors: Fu Li , Yue Xi Qing , Song Jian Xin
Published: February 2014

First of all, whey protein concentrat was added to milk adjusting the proportion of casein and whey proteins to 40:60. And then milk was hydrolyzed by trypsin and flavourzyme (TF) single respectively in one-step process or staged in two-step process. The Antigen contents of α-lactalbumin (α-LA) and β-lactoglobulin (β-LG) during the hydrolysis process were determined by indirect competitive enzyme-linked immunosorbent assay (ELISA) methods. The result showed that the most significant antigen reduction was observed in two-step hydrolysis process compared with one-step hydrolysis process
Application of Ecological Building Materials in the External Layer Design for Building
Authors: Luo Xue Song , Gan Chun , Ge Jiang Rong
Published: February 2014

In recent years, as the change of the building of aesthetic requirements, building skin is given more and more attention, and the material of the carrier material surface design exposition will play a huge role. In the second half of the 21st century, the living environment and sustainable development has become the focus of attention of the world. Environmental protection concept is being accepted by more and more people. People are realizing the importance of ecological building material to the protection of the environment, the save of resources and the health of human beings. All kinds of ecological building materials receive much popularity among architectures around the world.
Optimization Design of a New Type of Insulation Structure
Authors: He You , Zhao Zhi Ping , Fan Cun Juan
Published: February 2014

Because of the relatively small number of the subtropical region building energy research, resulting in the construction of energy-saving measures in the area of building energy method is mainly imitate other regions. The building energy efficiency should be appropriate. And the crucial of the building energy efficiency in subtropical region is heat insulation processing. This paper presents the idea of a subtropical region suitable for natural ventilation insulated exterior wall structure. A new kind of suitable natural ventilation and heat insulation building structure for exterior wall in hot summer and warm winter area is proposed in this paper, which thermal properties is calculated by Maple software. And this paper demonstrates that this kind of structure is the feasibility of the structure. The result of the comparison of thermal properties of different insulating structure by using the finite difference method for unsteady heat conduction calculation presents that the insulation performance of the buildings which have the natural ventilation and heat insulation structure is better than the ones without this ventilation. In the end of paper, the authors descript the hope that this kind of structure will be further research and analysis.
A New Method to Determining the Strength Parameters of Fractured Rock Mass
Authors: Guo Yun Hua , Zhu Wei Shen
Published: February 2014

A Hydropower Station is located in the middle reach of the Dadu River in southwest China. The natural slope angles are generally 40°~65° and the relative elevation drop is more than 600m. Complex different fractures such as faults, dykes and dense fracture zones due to unloading are developed. Many abutment slopes were formed during construction of the abutments. The stability of these steep and high slopes during construction and operation period plays an important role for the safe construction and operation of the hydropower station. According to the statistical distribution of joints and fractures at the construction site, the slope is divided into a number of engineering geological zones. For each zone, a stochastic fracture network and a numerical model which is close to the real state of the fractured rock mass are established by the Monte-Carlo method. The mechanical response of fractured rock masses with different sizes of numerical models is studied using FLAC3D. The REV characteristic scale is identified for rock masses in the slopes with stochastic fracture network. Numerical simulation is performed to obtain the stress-strain curve, the mechanical parameters and the strength of the jointed rock mass in the zone. A constitutive relationship reflecting the mechanical response of the jointed rock mass in the zone is established. The Comparison between the traditional method and the method in this paper has been made at the end.
Axial Behavior of Concrete-Filled Double Skin Steel Tubular Stub Columns Filled with Demolished Concrete Lump
Authors: Wang Yan Ze , Li Bai Shou
Published: February 2014

To analyze the axial compression bearing capacity of concrete filled double skin steel tubular (CFDST) stub columns which are filled with demolished concrete lump, twelve stub columns are tested. The main experimental parameters were the diameter-to-thickness ratio, mixing ratio and hollow section ration.Load-displacement curves and failure mode were analyzed, the compressive capacity determined from related design rules were compared with the peak load obtained in the tests. All specimens have a good performance of ductility and late bearing capacity. When the width-thickness is 72 and have a same mixing ratio, CFDST have the same bearing capacity with CFT. When the mixing ratio is 0 and width-thickness is 120, the bearing capacity of CFDST increase 16% than CFT. When the new concrete have similar compressive strength with old and mixing ratio is 25%, the bearing capacity of CFDST increase 18.8% than CFT.
Development in Mechanics Research of Diamond Coatings/WC Interface Based on Molecular Dynamics Simulation
Authors: Jian Xiao Gang , Zhang Yun Hua
Published: February 2014

This paper briefly reviews the overseas and domestic research status of the mechanics of hetero film-substrate interface based on molecular dynamics simulation, on this basis building the accurate model of diamond coatings/WC interface and executing the molecular dynamic simulation, exactly measuring the adhesive strength of the diamond coatings/WC interface, finally exploring the influence of interface scales on the adhesive strength of the diamond coatings/WC interface and verifying the feasibility of studying the microscopic structure by molecular dynamics simulation to characterize the mechanical properties of macrostructure, which has important significance for optimizing deposition process of diamond coatings to improve the adhesive strength of the interface.
Qingshankou-Formation Gravity-Flow Sedimentation in Early Cretaceous Songliao Basin of Northeast China: Evidences from Seismic Attributions Identification and Drilling Cores
Authors: Wang Chao
Published: February 2014

In order to fine the description and prediction the sedimentary microfacies of Qingshankou-Formation high-frequency sequence stratigraphic framework and search for new sandbody reservoir in the northern Songliao Basin, based on 3D seismic operation area, the principles of seismic sedimentology and sequence stratigraphy in North Songliao Basin Qingshankou-Formation isochronal strata frameworks are established, and then the seismic sedimentology is studied, the sedimentary packing and evolving histories are restored in Qingshankou-Formation various types of gravity flow reservoirs are on the basis of gravity flow sedimentary structure identification of sliding rock, sandy debris flow, turbidite rock, storm and other types of sedimentary gravity flow, study finds deposition and depositional slope break and earthquake triggering mechanism, mountain torrents and other related.
Influence of Fe Doping on Ce-Mn/TiO2-ZrO2 Catalysts for Low-Temperature Selective Catalytic Reduction of NO
Authors: Teng Yun Xiao , Song Cun Yi , Lu Xi Ning , Tong Zhen Song , Qin Yu San
Published: February 2014

Fe-Ce-Mn catalysts loaded on TiO2-ZrO2materials were prepared by sol-gel method and then were investigated for low temperature selective catalytic reduction (SCR) of NO with NH3. It was found that the NO conversions over Fe-Ce-Mn/TiO2-ZrO2was slightly improved compared with that over Ce-Mn/TiO2-ZrO2. The results showed that 96% NO conversion was obtained over Fe-Ce-Mn/TiO2-ZrO2with the molar ratio of Fe/Mn=0.3. A comparative study of Fe-Ce-Mn/TiO2- ZrO2and Ce-Mn/TiO2-ZrO2for NO conversions at 140°C in the presence of H2O and SO2proved that Fe-Ce-Mn/TiO2-ZrO2exhibited higher resistance to H2O and SO2than that of without Fe catalysts. In addition, Fe-Ce-Mn/TiO2-ZrO2presented 90.49% NO conversion after cutting off the injection of SO2and H2O.
Wear Resistance of NiCoCrAlY Alloy Coating by Cold Spraying
Authors: Feng Sheng Qiang , Ma Bing , Wang Xiu Ling , Cui Lang , Liu Guang , Pan Li Ping
Published: February 2014

NiCoCrAlY coating with high density was prepared on the surface of the magnesium alloy by cold spraying. Compared with the magnesium alloy prepared by the methods of the semi-continuous casting, the wear resistance and wear mode were analyzed by the experiments. The results showed that, under the dry friction condition, the conditions of the weightlessness of wear of NiCoCrAlY coating were better than that of the magnesium alloy. After the frictional experiment for 20 minutes, the weightlessness of wear of NiCoCrAlY coating was 10mg. Compared with that of the magnesium alloy, the weightlessness of wear was lower than 28%. Consequently, the NiCoCrAlY coating had the capacity of the weightlessness of wear resistance. By the comparisons of the every samples friction morphology, the wear modes of the NiCoCrAlY coating were adhesive wear and abrasive wear. And the wear modes of magnesium alloy were also adhesive wear and abrasive wear with corrosive wear and fatigue wear.
Photodegradation of Humic Acid and its Effect on the Property of Copper Binding
Authors: Wang Xue Jun , Lou Tao , He Kun Peng , Yang Zhen
Published: February 2014

Humic acid plays an important role in regualting the physical, chemical and biological properties in aquatic systems. In this paper, photochemical degradation of humic acid and its effect on the copper binding coefficient were studied. Results showed that the copper binding coefficient decreased with increased irradiation time. The decrease of copper binding coefficient was significantly correlated with the humic acid structure parameters (SUVA270 and E2/E3) during the photodegradation. It suggested that photodegradation of humic acid may have effects on the bioaccumulation of copper and hence its toxicity to aquatic organisms.
Treatment of Nitrobenzene Containing Wastewater by Titanium Oxide Photocatalyst
Authors: Li Na , Li Guo De , Wu Shi Wei , Tao Si Yuan , Li Guang Zhe , Wang Yan
Published: February 2014

In this study, we choose TiO2as photocatalysis, and to deal with low concentration nitrobenzene containing wastewater under the shining of ultraviolet light. The dosage of TiO2, H2O2and FeCl3and DO have be inspected. The following conclusion is according to the experiment result: When nitrobenzene 's concentration deciding for 20mg/L and the concentration of TiO2, H2O2and FeCl3are respectively 3.0g/L , 2.0mL/L, it is better to get the optimum removal rate.
Design of Control System for the Ball Mill
Authors: Dang Hong She , Zhang Ying , Wang Gang
Published: February 2014

The Ball Mill System (BMS) is a strongly coupled MIMO system,in order to implement a long-term automatic operation of the BMS effectively,and improve the automation level and efficiency, the paper present the overall design of the system,the control system is composed of Siemens SIMATIC S7-400PLCS7-200PLC,the PROFIBUS DP protocol and MPI protocol are both employed to setup a DCS networking.This control system has been running steadily and efficiently and the operation record showed that a satisfying control result is obtained.InroductionBall mill system is an important link in the modern industrial production,its the main boiler auxiliary equipment.Its work directly affecting the operation of the boiler, the system in the chemical plant, thermal power plant, ore mining and smelting has a wide range of applications, and ball mill system is a large power consumption. The Electricity consumption accounted for factorys power 15%~25%. Safe and economical operation of ball mill system not only directly affects the security and reliability of the generator at the plant and also is the important way of energy saving and consumption reducing[.
Simulation of Brushless DC Motor Speed Control Using Phase Locked Loop Based on Noise Analysis
Authors: Zhang Dong Ming , Li Yong Jun , Chen Li Jia
Published: February 2014

Based on analyzing the brushless dc motor (BDCM) mathematical model, the BDCM block is built. The speed of the motor is calculated through torque equation. And the back electromotive force (EMF) is obtained by using the piecewise linear method. The permanent magnet brushless motor speed control system is established using phase locked loop (PLL) technology on the basis of the BDCM model in SIMULINK. Two typical noise which will cause speed fluctuations: random load interference and power line interference in motor running is simulated in the control loop. Simulation results clearly show that the PLL control scheme acquires speed accuracy reaching about 1%, which outperforms ordinary speed-current proportional-integral (P-I) regulator control system. It also illustrates that proposed PLL solution has good rejection ratio to noise as the PLL having good linear filtering characteristics of interferences.
Research on Automatic Correction Method for Cigarette Making Machine Transmission Device Based on Fuzzy-PID Dual Mode Control
Authors: Ma Yin Ping , Wu Yao Hua
Published: February 2014

In the long-term process of working, cigarette making machine usually has transmission device running deviation problem. In response to this problem, this paper presents an automatic correction method of cigarette making machine transmission device based on cigarette making machine structure and analysis of running deviation. It divides the whole control process into different stages. when the error signal e is beyond the threshold value, use Fuzzy control; and when it is within the scope of threshold value, use PID control. Apply Simulink and Fuzzy toolbox of Matlab software for simulation experiment, and the experiment results demonstrated that the using of Fuzzy-PID dual mode control system can improve dynamic performance and stable performance of the control system, and can effectively and automatically correct cigarette making machine transmission device.
The Development of Measurement and Control System for a Machine Tool
Authors: Yin Feng Ling , Huo Bing Quan , Shao Fang
Published: February 2014

In order to satisfy the magnetic rheological polishing process, we established a measurement and control system based on SIEMENS 840D numerical control system. The structure of the system are introduced in detail, i.e. the four component modules, the seven component units establishing the hardware platform, and the three component parts establishing the electric control system design. The measurement and control system presented in this paper provides guidance for the relevant products.
Research on Gait Transition for Quadruped Search Robot Based on Kinetics Analysis
Authors: Wang Peng , Zhang Yuan , Li Ji Xiang
Published: February 2014

According to the structure scheme of quadruped search robot, the simulation model of quadruped search robot was established in ADAMS. The kinetics equation was analyzed using Lagrange theory. The gait transition of the quadruped search robot was analyzed based on the study of kinetic characteristics. We compared and assessed the different step length and the different moving trajectory curves of the quadruped robot, which supply the valuable reference data to the design as well as the important criterions to the trajectory planning and the control of theory prototype. Simulation results show that the motion characteristics of the system are closed related to the length of step and the frequency of gait transition.
Material Sorting Control System Design Based on Mitsubishi FX2N-48 MT PLC
Authors: Yan Ya Lin , Fang Yi , Li Xiao Peng , Zhu Xiao Qiang , Miao Sheng
Published: February 2014

In order to achieve the automation of industrial production, this paper designs TVT-METS3 type electromechanical integration training equipment as the platform, based on Mitsubishi FX2N-48MT PLC controller, using MM440 inverter to control motor speed, and the material sorting system with multiple types of sensors to detect the signal as a whole. The system can simulate industrial automation production line cargo sorting process, which can be completed cargo identificationhandlingsortingstorage management of the operations and so on, achieve the realization of industrial automation material sorting control system.
Design of Bulk Solid Flow Control System
Authors: Fan Zhao Long , Zhao Jian Hui , Li Fan , Rong Sun
Published: February 2014

This paper introduced the hardware module, software process, and control mode and communication protocol of bulk solid flow control system based on the C8051F020. It selected the C8051F020 of transplanted uCos-II embedded operating system as the core, used the module software design idea, and realized the cooperation of collection, PID control, communication and other tasks. The industry site experiment showed that the system had good adaptability, stability and control effect, the control accuracy reached to ±1%FS, and the measuring accuracy reached to ±5.
Research on Household Intelligent Robot Based on Artificial Psychology
Authors: Yan Ji Zheng , Wang Zhi Liang , Yan Yan
Published: February 2014

Household robots are not only the trends of robot, but also are the dreams of human beings for the past many years. With the development of Artificial Intelligence (AI) and Information Technology (IT), there are more and more home robots, from the attitude toward the robots by human, we can find two problems. First, humanoid psychological appearance of the household robot has a great and complex impact on human sense, exactly like human being, or nothing like, will make human feel different feelings. Second, people think household robots are simple machines, when household robot could say, hear, and even chat with people, how human emotions will change? This paper focuses on the relationship between human being and household robot, especially emotional discussion. We analyzes the architecture and appearance of household robot, find emotion theories and choose Artificial Psychology as its guide, which could make robot have humanoid emotion, in this process we avoid the uncanny valley, which makes people accept robot. Finally we use the head instead of the whole robot based on the existing conditions, and verify the robot in the digital home to achieve the goal of harmonious human-computer interaction.
Effect of [Al]s, [Mg], [Ca] in Molten Steel on Inclusion Content for High Speed Wheel Steel during LF-VD Process
Authors: Tang Yu
Published: February 2014

In order to improve fatigue life of wheel steel, LF-VD secondary-refining process is done with Al-deoxidation and slag of high basicity, high Al2O3 content and low oxidizing property. Inclusion content would be influenced by [Al]s, [Mg], [Ca] in molten steel. It is found that Al2O3 inclusions, which are the products of Al-deoxidation, would react with [Mg], [Ca] in molten steel to transform into CaO-MgO-Al2O3 complex inclusions, which is the key for the enhancement of fatigue performance for wheel steel.
Design of X-Ray Vision Automatic Testing System
Authors: Han Yue Ping , Li Rui Hong
Published: February 2014

Spatial sampling criteria and fast recognition theory based on single view imaging system are proposed for automatic testing the assembly structures inside products in industry applications. There must be a maximum rotary step for an object within which the least structural size to be tested is ascertained. Rotating the object by the step and imaging it and so on until a 360°turn is completed, an image sequence is obtained that includes the full structural information for recognition. It is verified that objects could be recognized at a single or some limited orientations by analyzing the correlations among the image sequence. The theory is applied to the online automated X-ray vision system. Experiments show that the average identification takes less than 5s with 4.5% of wrong recognition expense.
A Scheduler Design for Coordinating Network Control System Load with Redundancy
Authors: Peng Zheng Fu , Huang Wei , Liu Juan , Lv Yue Yue
Published: February 2014

For a network control system (NCS) with redundancy structure, this paper designs a network scheduler, which can coordinate network load and support redundancy to enhance system availability, safety and reliability. Considering the Quality of Service (QoS) and the Quality of Control (QoC) to constitute the objective function of network resources scheduling, the scheduler uses fuzzy system to establish the network resource scheduling strategy, which dynamically decides communication channels of network control loops by calculating online and real-time scheduling. The scheduler can improve real-time performance and availability of the NCS, and quickly switch redundancy network under fault conditions to ensure reliability of the NCS. At last, the experiment results demonstrate that the proposed scheduler meets the requirements of the resource scheduling and redundancy network, and can effectively improve the performance of the NCS when network load increases.
Research on Power System Fault Diagnosis Technology
Authors: Gao Wei , Tang Zhong
Published: February 2014

The current proposed technologies for fault diagnosis of power system were investigated, including expert system, artificial neural network, optimization methods, and rough set theory. The applicability and characteristics of these technologies for power system fault diagnosis were briefly analyzed and also. The existing flaws and improvements are given. Finally, the recently research status were reviewed and discussed, the key technology issues on and main development trends of the issues are pointed out to motivate the developments.
Pulse Frequency Measurement Circuit for Infrared Laser
Authors: Hou Hong Lu , Xin Guang Ze , Qi Jing Jing , Li Fei
Published: February 2014

Frequency measurement circuit based on PIN photodiode was designed to detect laser parameters in real time. The light intensity is decayed by the optical glass fixed in the front of the laser capsule. Photoelectric conversion is achieved by the photodiode. After being processed through the conditioning circuit, the electricity signal is transfered to the microcontroller which calculates the pulse frequency by counting the pulse number in interrupt mode. This system is enable to monitor the state of high-power laser in real time. By testing the whole system, the frequency measurement precision turns out to be less than 0.02%. The sensitivity of this measurement circuit is higher than 0.9V/mW, while the response time is lower than 3ns.
Hot Ductility Behaviors of HRB600 Vanadium-Containing Steel Rebar
Authors: Tian Peng , Zhong Zhi Yong , Bai Rui Guo , Zhang Xing Li
Published: February 2014

Hot ductility behaviors of HRB600 vanadium-containing steel rebar was study with thermal simulation test and the fracture was observed and analyzed by scanning electron microscope (SEM). The result shows that, the contraction ratio of cross sectional area (Z) in 1050°C - 1300°C was more than 60%, tensile sample showed good ductility; Z in 750°C-1000°C was less than 60%, tensile sample showed brittle, namely third brittle zone. Then third brittle zone should be avoided or minimize stays in the development process of continuous casting and hot rolling. The fracture mode and the morphology of fracture surfaces were different at different temperatures.
Segmentations of Liver and Hepatic Tumors from 3D Computed Tomography Abdominal Images
Authors: Wei Yun Tao , Zhou Yi Bing
Published: February 2014

The segmentation of liver using computed tomography (CT) data has gained a lot of importance in the medical image processing field. In this paper, we present a survey on liver segmentation methods and techniques using CT images for liver segmentation. An adaptive initialization method was developed to produce fully automatic processing frameworks based on graph-cut and gradient flow active contour algorithms. This method was applied to abdominal Computed Tomography (CT) images for segmentation of liver tissue and hepatic tumors. Twenty-five anonymized datasets were randomly collected from several radiology centres without specific request on acquisition parameter settings nor patient clinical situation as inclusion criteria. Resulting automatic segmentations of liver tissue and tumors were compared to their reference standard delineations manually performed by a specialist. Segmentation accuracy has been assessed through the following evaluation framework: dice similarity coefficient, false negative ratio, false positive ratio and processing time. The implemented initialization method allows fully automatic segmentation leading to superior overall performances of graph-cut algorithm in terms of accuracy and processing time. The initialization method here presented resulted suitable and reliable for two different segmentation techniques and could be further extended.
Time-Domain Aeroservoelastic Modeling and Active Flutter Suppression by Model Predictive Control
Authors: Sun Zhi Wei , Bai Jun Qiang
Published: February 2014

A time-domain aeroservoelastic model is developed to calculate the flutter speed and an active flutter suppression system is designed by model predictive control. Thefinite-state, induced-flow theoryandequilibrium beam finite elementmethod are chosen to formulate the aeroservoelastic governing equations in state-space form, which is necessary for active flutter suppression design with modern control theory. A sensitivity analysis is performed to find the most appropriate number of induced-flow terms and beam elements. Model predictive control theory is adopted to design an active flutter suppression system due to its ability to deal with the constraints on rate change and amplitude of input. The numerical result shows a satisfactory precision of the flutter speed prediction, the close loop analysis shows that the flutter boundary is considerable expanded.
Dynamic Neural Sliding Mode Control for Uncertain Nonlinear Systems
Authors: Gao Hong Yu , Liu Jun , Gao Yuan , Shao Ke Yong
Published: February 2014

For uncertainty nonlinear system, a dynamic neural sliding mode (SM) controller is designed in this paper. A union upper bound of uncertainty is constructed. The union upper bound is from the uncertainty and disturbance of the system, and it is unknown. The designed dynamic neural SM controller can ensure the system asymptotic stability. Using Radial Basis Function Neural Networks (RBFNN) to learn adaptively the union upper boundary of the uncertainty and verifying its validity by theoretical analysis and simulation examples. The design scheme of the adaptive learning upper bound reduces the condition of theoretical analysis of SMC, effectively suppresses the chattering.
Neural Network Control for Uncertain Nonlinear Time-Delay Systems
Authors: Gao Hong Yu , Wang Xiu Ming , Gao Yuan , Shao Ke Yong
Published: February 2014

Based on stability theory, a class of neural network controller design of uncertain nonlinear time-delay systems is studied. Using the ability that neural network can approximate any nonlinear function, a kind of weights correction law based on radial basis function (RBF) neural network (NN) and the adaptive controller design scheme are proposed. According to Lyapunov stability analysis method, this paper gives the sufficient conditions that neural network controller can make this kind of uncertain nonlinear time-delay systems stable in the sense of Lyapunov. At last, the proposed neural network controller is verified to be correct and effective by the simulation examples.
Study on Hot Deformation Behavior and Constitutive Relation of Cr-77.5Nb Alloy
Authors: Han Wen Wen , Lu Shi Qiang , Deng Li Ping
Published: February 2014

Isothermal compression test at constant strain rate for Cr-77.5Nb alloy were performed on Gleeble simulator with conditions of deformation temperature from 800 to 1200°C and strain rate from 0.001s-1to 0.1s-1. The influence of deformation parameters including temperature, strain rate and strain related with flow stress during hot deformation were investigated and the constitutive relation of Cr-77.5Nb alloy was established by stepwise regression method. The result of error analysis shows that the constitutive relation established has high accuracy and can well characterize the hot deformation behavior of this alloy.
The Patients Care Status Monitoring Based on the Visual Aids
Authors: Fu Hui
Published: February 2014

The traditional patients monitoring method is based on the alert and monitoring of the significant fluctuations of vital signs. Once the vital signs of the patients are too weak, they can not achieve the thresholds to trigger alert and it will cause the delay and errors of the alerts. In order to solve the issues, this paper proposes the patients care status monitoring method based visual aids in order to real-time monitor critically ill patients. The experiments illustrate the system can greatly improve the monitoring accuracy for critically ill patients.
The Research and Application of Artificial Intelligence in the Field of Intelligent Robot
Authors: Li Zhi Hao
Published: February 2014

The research and application of artificial intelligence has a very wide range in intelligent robot field. Intelligent robot can not only make use of artificial intelligence gain access to external data, information, (such as stereo vision system, face recognition and tracking, etc.), and then deal with it so as to exactly describe external environment, and complete a task independently, owing the ability of learning knowledge, but also have self-many kinds of artificial intelligence like judgment and decision making, processing capacity and so on. It can make corresponding decision according to environmental changes. Its application range is expanding. In deep sea exploration, star exploration, mineral exploration, heavy pollution, domestic service, entertainment clubs, health care and so on, the figure of intelligent robots artificial intelligence application can all be seen.
Ill-Condition Controlled Maximum Likelihood Registration for Multiple Sensors
Authors: Yang Xu Guang , Wang Yue , Shan Xiu Ming
Published: February 2014

Sensor registration plays an important role in multi-sensor fusion system. In practical scenarios, the performance of traditional registration algorithms degrades when the measurements are closely positioned. In this paper, we point out and analyze the ill-conditioning problem of multi-sensor maximum likelihood registration (MLR) algorithm. Then we propose an ill-condition controlled maximum likelihood registration (ICMLR) algorithm, which can solve the ill-conditioning problem by the technique of diagonal loading. Compared with MLR, the proposed algorithm demonstrates the advantages in both bias estimates and target state estimates in terms of the root mean square error (RMSE) criterion.
A Micro-Channel Oil Debris Monitoring Sensor Based on a Planar Coil and Two Solenoids
Authors: Wang Zhi Juan , Zhao Jun Hong , Ding Gui Fu
Published: February 2014

A micro-channel oil debris monitoring sensor based on planar coil is presented. The sensor, composed of one planar coil and two solenoids, detects metallic debris passing through its center by monitoring induced electromotive force of the planar coil. Based on the detection principle of the sensor, the detection circuit mainly consists of instrumentation amplifier, filter and amplifier. The testing results showed that the ferromagnetic metal particles under 100μm can be detected.
A New DNA Based GA for Modeling a pH Neutralization Process with Fuzzy Neural Network
Authors: Chen Xiao
Published: February 2014

In this paper, a new DNA based genetic algorithm is proposed to optimize a fuzzy neural network model for a pH neutralization process. In the proposed algorithm, each individual presents a fuzzy neural network encoded by nucleotide base sequence, and modified DNA based crossover operation and three types of mutation operators are designed to improve the searching ability of the algorithm. The study on the performance for two functions shows that the proposed algorithm outperforms GA. Finally, to verify the effectiveness of the established model, it is compared with two models optimized with other methods. Comparison results show that the model optimized by DNA based GA is more accurate.
Analysis of the Mineralogical Characteristics at Different Temperature in the Process of Roasting Vanadium Slag
Authors: Shi Zhi Xin , Liu Jin Yan , Cai Xiao Wen , Yuan Tian Yu
Published: February 2014

Through the scanning electron microscope and energy spectrum analysis of vanadium slag after calcination at different temperatures of Panzhihua Iron and steel in industrial production, analyzed the change of morphology and composition of the various main phase, Focuses on the change process of two main vanadium containing phase which are vanadium spinels and calcium vanadate. The vanadium spinels into calcium vanadate optimal temperature range is 800 ~ 900 °C, and provides a theoretical basis for the extraction process of vanadium, which can further improve the industrial production of vanadium.
New Stability Condition for Linear Systems with Time-Varying Delay
Authors: Wang Li Jun
Published: February 2014

Generally, the obtained results on delayed systems can be classified into two types: delay-independent ones and delay-dependent ones. Delay-dependent stabilization problem for a class linear system with interval time-varying delay is studied. Early first proposed stability analysis method for systems with time-varying delay in a range, but the method therein still leaves much room for improvement. A sufficient condition in terms of linear matrix inequalities (LMIs) is achieved by constructing a novel Lyapunov-Krasovskii functional with the idea of partitioning the time delay, and then using free-weighting matrix approach and adopting inequalities, the interval delay is dealt with successfully. Compared with former stability analysis approaches, this approach can overcome the defect of finding a common positive definite matrix, and reduce conservative greatly. Finally, one simulation example is given to illustrate the effectiveness of the methods.
Design of Automatic Test System on Flight Control Electronics Set Based on PXI Bus
Authors: Zhang Yu , Zhao Jian Hui , Li Fan
Published: February 2014

This template explains and demonstrates how to prepare your camera-ready paper for Trans Tech Publications. The best is to read these instructions and follow the outline of this text. Please make the page settings of your word processor to A4 format (21 x 29,7 cm or 8 x 11 inches); with the margins: bottom 1.5 cm (0.59 in) and top 2.5 cm (0.98 in), right/left margins must be 2 cm (0.78 in). This template explains and demonstrates how to prepare your camera-ready paper for Trans Tech Publications. The best is to read these instructions and follow the outline of this text. Please make the page settings of your word processor to A4 format (21 x 29,7 cm or 8 x 11 inches); with the margins: bottom 1.5 cm (0.59 in) and top 2.5 cm (0.98 in), right/left margins must be 2 cm (0.78 in).
Design and Implementation of Intelligent Tester for LED Backlight LCD Display Driving Power
Authors: Ye Dun Fan , Liu Xin , Li Ya Min , Zhang Meng Yan
Published: February 2014

In accordance with the requirement of LED LCD driving power test and the basic principle of digital DC electronic load and combined with the trend of intelligentization, miniaturization, communication of electronic load, a new scheme of intelligent tester for LED LCD driver power based on PIC is proposed. It implements working modes of setting current, testing voltage, testing current, testing frequency, multi-channel transmission etc. Intelligent testing for ten states of LED LCD's four outputs under two power mode is supported. It can also send test data to upper computer for analysis with RS485 bus.
Synthesis and Characterization of a Novel Dendronized Polymer Bearing Azobenzene Moieties in the Side Chain
Authors: Yang Chang An , Liang En Xiang , Huang Zhou Bing , Zheng Jian Ying
Published: February 2014

Novel dendronized polymers bearing azobenzene moieties in the side chain, poly (2, 5-bis {[3, 4, 5-tri (4-methoxy-4-oxyhexyloxy azobenzene) benzy oxycarbonyl} styrene), has been successfully synthesized. These polymers were characterized by 1H NMR, gel permeation chromatography (GPC), differential scanning calorimetry (DSC), polarized light microscopy (PLM), and one-dimensional wide-angle X-ray diffraction (1D XRD). The effects of molecular weight on liquid-crystalline behavior of these dendronized polymers were also investigated. The results show that the low molecular weight polymer P1 exhibits smecitc A (SmA)-like structure at lower temperature and nematic phase at higher temperature. Further heating P1 above the highest phase transition temperature, the sample becomes isotropic state. With the increasing of molecular weight, the high molecular weight polymer P2 exhibits more versatile intriguing liquid crystalline properties. The sequence of phase transitions of P2 follows: 2D centered rectangular columnar phase (ΦR) scaffold of main-chain and SmB-like structure of side-chain 2D centered rectangular columnar phase (ΦR) scaffold of main-chain and SmA-like structure of side-chain 2D centered rectangular (ΦR) scaffold of main-chain and isotropic side-chain 2D long-range-ordered hexagonal columnar phase (ΦH) of main-chain and isotropic side-chain. The 2D long-range-ordered hexagonal columnar phase (ΦH) of P2 still remains before the sample is completely decomposed.
Hydrogen Storage Properties of LiNH2/MgH2 Complex Materials with Ti Catalyst by Mechanical Alloying
Authors: Lan Zhi Qiang , Liu Song , Li Shu Bo , Wei Wen Lou , Guo Jin
Published: February 2014

A LiNH2/MgH2 (1:1) complex was prepared by mechanical alloying and the effects of Ti and TiF3 on the characteristics of hydrogen storage were investigated. It was found that LiMgN and Li2NH phases exist as the main phases in the LiNH2/MgH2 (1:1) complex and that Mg (NH2)2 and NH4HF2 phases appear when TiF3 is added. The onset temperature of hydrogen desorption was reduced with increasing mill time, and the hydrogen saturation absorption temperature for the LiNH2/MgH2 complex decreased about 30°C with the addition of Ti and TiF3. Ti and TiF3 as catalysts are favorable for reducing the dehydrogenation temperature. The addition of TiF3 can also facilitate the increase of hydrogen desorption for the LiNH2/MgH2 (1:1) complex.
Wireless CNC Motion Controller Designed with PSoC
Authors: Zhang Chi , Ye Zhao Hui , Zhou Yong Ming
Published: February 2014

Numerical control (NC) technology is a kind of technology combined with electronics, machinery manufacturing, and other interdisciplinary combination of technologies. It is an important part of modern manufacturing. Currently, NC technology is developing towards the open CNC system with extensibility and interchangeability, while the modern electronic technology is developing towards the programmable technology and SoC (System-on-Chip) technology. However, current CNC controller designed with SoC is still in the research stage and not practical yet. In this paper, a practical CNC motion controller is built with modern PSoC (Programmable System-on-Chip) with wireless Ethernet interface. This controller has a high-performance microprocessor, numbers of free configurable analog and digital devices and IO (input/output) interfaces, and many kinds of communication interfaces. Therefore, it has good real-time control functions and communication functions. Experiments for controlling a three joint-axis engraving machine show that the controller can achieve high performance of parallel control of the three joint-axis linear interpolation and two joint-axis circular interpolation, and high performance of the trapezoidal and S-shape speed control. In addition, in order to reduce the impact to the motor and increase the system efficiency, a kind of look-ahead algorithm for velocity control with low time cost is used.
Research on Fault Diagnosis for Roller Bearings Based on MED and Slice Bi-Spectrum
Authors: Liu Shang Kun , Pang Bin , Tang Gui Ji
Published: February 2014

The rolling bearings fault feature under strong background noise is very weak for reasons of environment noise impact and signal attenuation. To extract the fault features of roller bearings effectively, a new method based on Minimum entropy deconvolution (MED) and slice bi-spectrum is proposed. The paper Firstly decreases the strong background noise of rolling bearing by the MED method, and then calculates the envelope signal of the de-noised signal. Finally, analyzes the envelope signal with slice bi-spectrum and extracted the fault characteristic frequency. The effectiveness of the proposed method was validated by analysis of both a simulated faulty bearing vibration signal and the experiment measured signal of rolling bearing, and it was also compared with the method of envelope spectrum.
Windows in Buildings - Diagnostics of Selected Properties after Time of Using
Authors: Oravec Pavel
Published: February 2014

In construction projects in a field of residential buildings installation and replacement of fillings of openings (windows) play a very important role. A number of requirements is put on newly built windows, in particular in the field of thermal insulation and airtightness. Will the window elements stand the test even after years of use The aim of this paper is to compare the declared parameter of heat transfer parameter of glazing Ug [W.m-2.K-1] of insulating glasses found from the print on a between the glass frame with the value which can be determined by measuring directly on the building after a certain period of use.
Wooden Window Structure and its Thermo-Humid Mode
Authors: Kamenický Ľuboš
Published: February 2014

Frame of window and all its parts are constantly evolving, trying to meet newrequirements, incorporating new materials and design approaches. Along with all of these,experimental research goes on. Complexity of problems varies based on various factorsand material structure reflects under certain circumstances negative aspects of the design. Thisarticle is dealing with appearance of condensation and icing in functional gap of wooden windowframe where we can see the most significant impact on it. Root cause analysis of condensationand icing has been conducted, factors leading to forming of condensation and icing have beendescribed in detail along with humidity characteristics of gap between particular parts of frame.Theoretical analysis is based on the real life scenario measurements conducted in various R&Dplants across Slovakia and Europe region. Article outlines next steps for a future researchconsidering window sealing and optimization of diffuse characteristics. Based on these we assumethat by incorporating of the diffuse characteristics knowledge and its optimization we achievea decrease of condensation and icing forming in functional gap of wooden window frame.
A Software Optimization of the Solar Energy System Performance
Authors: Skalík Lukáš , Lulkovičová Otília
Published: February 2014

The energy demand of buildings represents in the balance of heat use and heat consumption of energy complex in the Slovak national economy second largest savings potential. Their complex energy demands is the sum of total investment input to ensure thermal protection and annual operational demands of particular energy systems during their lifetime in building. The application of energy systems based on thermal solar systems reduces energy consumption and operating costs of building for support heating and domestic hot water as well as savings of non-renewable fossil fuels. Correctly designed solar energy system depends on many characteristics, i. e. appropriate solar collector area and tank volume, collector tilt and orientation as well as quality of used components. The evaluation of thermal solar system components by calculation software shows how can be the original thermal solar system improved by means of performance. The system performance can be improved of more than 31 % than in given system by changing four thermal solar system parameters such as heat loss coefficient and aperture area of used solar collector, storage tank volume and its height and diameter ratio.
Evaluation of Possible Use of Foliage as a Fuel for Small Combustion Equipment
Authors: Martiník Lubomír , Drastichová Vendula , Horák Jiří , Jankovská Zuzana , Kubesa Petr
Published: February 2014

Biomass is a common fuel for small combustion equipment and also for heating plantsand power plants. Combustion of firewood, wood briquettes and pellets dominates in households.Thanks to high demand for biomass fuels its prices grow and it is necessary to look for cheaperalternatives. One of the alternative fuels can be foliage. In cities there is in autumn usually a plentyof fallen leaves. These leaves - foliage has to be composted or otherwise disposed of. Instead oftreating foliage as a waste it can be used as an alternative fuel. To serve as a viable fuel source thefoliage has to be processed into briquetts.This article deals with possibilities of producing briquettes from foliage and evaluation of theircombustion quality in small combustion equipment.