bluuebunny/crossref_metadata_2025 huggingface dataset:
Control System Design on Rope Haulage Monorail Transport System Using Frequency Conversion
Authors: Zhang Nai Biao , Pang Xun , Zhou Xin Lei
Published: October 2014

The rope haulage monorail transport system is an important kind of subsidiary transport system in the underground mine. We propose a control system using frequency conversion on rope haulage monorail transport system in this paper, which consists of PLC control console, AC inverter, speed sensor, over-wind protection switch, sound-light alarm, leakage monitoring device, etc. Our control system can realize the start-stop control, the forward and backward control, the frequency conversion control, the over-wind protection, and so on. This control system can also real-timely detect and display the status information of transport system. The field experiments have showed that our control system using frequency conversion can well satisfy the needs of automatic operation of rope haulage monorail transport system.
Design and Implementation of the Health Examination Robot Control System Architecture
Authors: Huang Dun Hua , Zhou Hai Jun , Cui Jian
Published: October 2014

The paper research a health examination robot, which set height, weight, blood pressure, blood glucose, cholesterol, blood oxygen, electrocardiogram (ECG), energy check in one certain. In the design, adopt 32 bit embedded ARM micro controller NuMicro NUC140, RFID card reader, oxygen check control module and ECG check control module, taking into account the system connection and RFID identification, parameters of historical data query and ECG check process. Experimental data show that system functions are realized and to promote low-cost medical treatment.
Designing of a Mobile Robot Using Photovoltaic Cells
Authors: Patic Paul Ciprian , Pascale Lucia , Mâinea Marin
Published: October 2014

The robots operate in a specific environment, the characteristics of which may remain constant or variable over time. While battery technology is of great interest for mobile robots, but it is not reliable in the time, there are several strategies for the storage of energy, as well as strategies for harvesting energy from the environment in various ways and energy management using sophisticated control techniques to improve power supply costs. One of these strategies is to use solar energy to power mobile robots. The solar cells appearance is due to the need to supply power spacecraft since not require maintenance for a period of time.
Nonlinear Model Predictive Control for Automatic Train Operation with Actuator Saturation and Speed Limit
Authors: Wang Long Sheng , Xu Hong Ze
Published: October 2014

This paper addresses a position and speed tracking problem for high-speed train automatic operation with actuator saturation and speed limit. A nonlinear model predictive control (NMPC) approach, which allows the explicit consideration of state and input constraints when formulating the problem and is shown to guarantee the stability of the closed-loop system by choosing a proper terminal cost and terminal constraints set, is proposed. In NMPC, a cost function penalizing both the train position and speed tracking error and the changes of tracking/braking forces will be minimized on-line. The effectiveness of the proposed approach is verified by numerical simulations.
Research of Magnetic Field Navigation Intelligent Vehicle System Based on Difference Algorithm
Authors: Dong Wu , Bie Hong Xia
Published: October 2014

To implement intelligent vehicle control system based on magnetic field detection, automation navigation scheme based on difference algorithm is proposed. The feature of magnetic field of the road is analyzed, and layout method of sensors is proposed, and signals of magnetic field sensors are gathered and filtered, and road control strategy based on difference algorithm is proposed, and steering gear is used to implement cornering of intelligent vehicle, and position PID algorithm is used to implement speed control of intelligent vehicle. The experiment result shows that intelligent vehicle using this scheme can work steadily at high speed, and has higher practicability and is worth to be propagated in many fields.
Research on the Method of Variable-Frequency Hysteresis SVPWM Current Control for Three-Phase PWM Rectifier
Authors: Chen Xu , Wei Shou Qi
Published: October 2014

Aiming at the shortcomings of the method of conventional hysteresis current control for three-phase PWM rectifier, this paper proposes a new method, which combines Variable-frequency hysteresis current control with Space Vector Pulse-width Modulation (SVPWM) strategy. With this method, the error current can be limited in a given hysteresis loop by switching the space voltage vector of the voltage source PWM rectifier (VSR) in real time. And it can get a faster response for the current, while the frequency of the switches can be reduced. So, this method can obtain a high quality for the current control of PWM rectifier.
Optimal Design of Energy-Saving Induction Cooker Power Controller Based on Fuzzy Technology
Authors: Zheng Pin Qi , Yu Qing Sheng
Published: October 2014

Application of Soft-switching technique and fuzzy control is discussed to optimize traditional induction cooker controller. Soft-switching technique is used to improve output efficiency of induction cooker. Switch voltage regulation by fuzzy control are used to adjust output power of induction cooker. Soft-switching inverter consists of resonant DC link and LC resonant network. Resonant DC link is used to realize ZVS, and resonant network is used to eliminate harmonics. Fuzzy control based on look-up table is adopted to adjust duty cycle of switch mode regulated power supply, which changes the DC supply voltage, so that amplitude of AC signal inverted by induction cooker is changed to adjust output power of induction cooker according to the requirement, , ensuring the operating temperature aligned with the target temperature.
Rough and Fuzzy Set Based Classification Algorithm on Computer Practice Teaching Evaluation
Authors: Wan Hong Xin , Peng Yun
Published: October 2014

Computer teaching should emphasize the engineering practicality, creativity, and pay more attention to the project and its application. It is important to evaluate the teaching effect. An evaluation system and corresponding algorithm are presented in this paper. There is a certain correlation between some evaluation factors, and the factors can be divided into key factors and secondary factors by rough set. The evaluation algorithm based on the key factors can reduce redundant factors and improve the efficiency. We designed a clustering algorithm based on fuzzy set on evaluation entities, which can reduce the dada size and improve the accuracy of the algorithm. Through the example analysis the algorithm of factors reduction based on rough set and clustering method based on fuzzy set are described in detail.
The Cell Search Procedure and PCI Planning in TD-LTE
Authors: Zhou Lin , Kang Lan Lan , Chi Shu Kai
Published: October 2014

The first step is cell search procedure for a user terminal in TD-LTE. It’s the premise of the establishment of a communication link between the user terminal and the base station. To detect PCI correctly plays a crucial role in the cell search procedure, and it also affects the mobility of the user terminal. It’s a problem that is worth studying how to determine the PCI planning in TD-LTE. This article first briefly introduces the PCI parameter and the cell research procedure, and specifies the PCI is the important parameter for LTE, and then describes the planning principles of the parameter. Finally, it specifies the suggestions and situations of the PCI planning in test network of TD-LTE.
Barriers and Benefits in the Adoption of E-Government in China
Authors: Abuduaini Abudureheman
Published: October 2014

The benefits of e-government depend on the number of citizens who take advantage of them. The purpose of this research study was to determine barriers to e-government use as perceived by citizens at the municipal level in China , The findings of this study show that, government leaders should work on increasing Internet access, usability of their e-government applications, trust in the Internet, and trust in the perceived capability of their agencies to conduct online transactions securely.
Performance of HD Radio System
Authors: Ren Jin
Published: October 2014

The advance of wireless communications brings in various schemes of wireless digital communication technology. Analog communication and broadcasting services convert into digital services in many countries. The IBOC (In-Band On-Channel) system has been developed to work in the same band with the conventional analog radio and broadcasting digital signal simultaneously. HDR (HD-Radio) standard of IBOC (In-Band-On-Channel) can use coherent demodulation using pilot sub-carriers. In this paper, the performance of HD radio system is evaluated. To contribute to decision of digital radio standard and design of digital radio transmission network, the simulation results will give a help.
Study on the Soft Time Windows Vehicle Synthesis Algorithm Based on Genetic
Authors: Ai Ju Mei , Du Ping
Published: October 2014

This paper designed a mathematical model of vehicle synthetising and proposed a solution to solve the vehicle carpool problem by using genetic algorithm. The solution encoded the nodes of station and start, end point. Arranged randomly to generate multiple chromosome, initial population and calculate the fitness value obtained from the objective function by the matching node of each vehicle. Generated a new individual by mutation and crossover through Roulette Wheel Selection method.Repeat the above operation to reach the maximun number of iteration and got the optimal solution path. The experimental result shows that the algorithm is valid.
Modal Analysis on a Runner Chamber for a Large Hydraulic Bulb Tubular Turbine
Authors: Huang Chang Zheng , Li Jin , Yang Zu Chao , Xu Zhuo Wei
Published: October 2014

The vibration was severe for a runner chamber of a large hydraulic bulb tubular turbine, which caused some cracks. The PRO/E software was adopted to establish a 3D model of the runner chamber. Based on ANSYS Workbench V14.5, a modal analysis was done. Its natural frequencies and modal shapes were obtained. The influence on modal characteristics with the runner chamber’s structure was discussed. The study shows that the reinforce stiffener’s thickness, the circumferential endlessband and their thicknesses have few effect on the modal characteristics of the runner chamber, the latticed reinforce stiffener has more effect on the modal characteristics. These results will provide the basis for product optimum design, so that its natural frequencies stagger these frequencies of field vibration, the resonance and the crack do not occur in the runner chamber.
Wind-Induced Responses of a Transmission Angle Tower in Coastal Areas
Authors: Wu Yi Jiang , Chen Bo , Wang Gan Jun , Chen Qing Jiang
Published: October 2014

The dynamic response analysis of a transmission angle tower subjected to wind excitations is actively carried out in this study. The structural model is constructed based on finite element approach with the aiding of commercial package ANSYS. The equation of motion of the transmission tower-line system under wind excitations is established. The dynamic wind loading are applied on the tower-line system to examine the structural responses. The deformation and stresses distribution of the transmission angle tower are computed to explore the structural performance. The made observations indicate that the peak stresses of some members are large than the permitted yielding stresses of steel material.
A New Forecasting Model of Fuzzy Time Series
Authors: Wang Hong Xu , Guo Jian Chun , Feng Hao , Jin Hai Long
Published: October 2014

Classical time series model can efficiently handle many forecasting problems, but these models can not solves the forecasting problem in which values of the time series are represented by language values or fuzzy sets. Song and Chissom and many other scholars put forward many models, and these models can only forecast research about historical data. This paper presents a new fuzzy time series forecasting model which can predict the data of unknown years.
The Optimization on Tread Profile Based on Wheel-Rail Match
Authors: Xie Huan
Published: October 2014

The matching status of wheel/rail affect the driving stability and safety directly. It could improve the dynamic behaviors by optimizing the matching status of wheel/rail. Taking the wheel rim tread named LMa as an object, the wheel diameter curve method was used to optimize the profile of tread LMa. Then the dynamic behaviors of the optimized profile (LMa-G) were obtained by the dynamic analysis. The results obtained indicate that the profile of tread LMa - G showing better contact performance.
Research and Implementation of Intelligent Question Answering System in MOOC
Authors: Dong Wei Jun , Geng Guo Hua
Published: October 2014

Massive Online Open Course which based on Open Educational Resource might be the most effective method to large-scale quality education, which can realize passive learning to active learning. Analyzing the status and shortages of Intelligent Answering System, propose and design an intelligent question answering system based on agent-model. System use software agents to implement and improve MOOC system’s Intelligent Answering System performance, which has capacity of natural language processing, and good versatility. It can provide an efficient online problem answer environment for thousands of learners, and can effectively promote students' autonomous learning and self-development.
The Research of Applied Analysis Method on Shaped Charge Detonation Parameters
Authors: Chen Bing , Yu Gang , Zhou Xu Guo , Dou Yi Hua , Qu Zhong Ren , Li Ming Fei
Published: October 2014

For avoid the perforation accident, oil perforating urgent need to calculate accurately shaped charge detonation parameters to guide the design and construction of perforation. According to the charge type and characteristics of shaped charge, based on traditional detonation theory and detonation parameters calculated method, this paper first determining shaped explosive detonation reaction equation, then analysis the shaped charge detonation heat, detonation temperature, detonation tolerance and detonation pressure and detonating velocity, extract the analytical methods of shaped charges detonation parameters suitable for oil at last. The specific practices: determined the reaction equation of shaped charges explosive with a maximum heat release rule; determined detonation heat, detonation temperature and detonation tolerance with law of Hess, internal energy value method and Avogadro law; calculated detonation velocity and pressure by Kamlet law; use engineering calculation method to analyze the detonating velocity as to the non-C-H-N-O composition shaped charges which containing feeling agent, bonding agent, flammable agent, plasticizer and other active agent; by revision Kamlet formula, get detonation pressure calculation formula.
Reliability Analysis of the Port Handling Machinery and the Workers
Authors: Zhang Pan Pan , Li Yi Qin , Li Hai Bo , Zhou Jia Hai
Published: October 2014

Theory of the safety ergonomics and reliability analysis was applied in this paper. Influences of port handling machinery and workers on the handling reliability were studied. For the general cargo handling process, mathematical model was put forward. According to the model, calculations were carried out to increase the working efficiency of the port handling machinery. At same time, combined with port investigation and factors affecting the operation of workers, measures were proposed to improve the safe and efficient production of the port.
Key Technology in a Lightweight WPF-Based Electronic Map Engine
Authors: Peng Lei
Published: October 2014

This paper introduces key technology in design and development of a lightweight WPF-Based electronic map engine, systematically analyzes characteristics of WPF technology, designs the structure of electronic map engine components, elaborates on data organization and management, vector and raster spatial data indexing method, presents a electronic map engine specific for nautical map display style.
Improved Ant Colony Algorithm on Scheduling Optimization of Cloud Computing Resources
Authors: Hu Xiao Xi , Zhou Xian Wei
Published: October 2014

To address the problem of high occupancy of resources and slow response of current scheduling of cloud computing resources, this paper proposes a scheduling optimization algorithm based improved ant colony algorithm. It makes resource reservation through migration of virtual machine, uses dynamic trend prediction algorithm to forecast the load changes of data center, and puts forward the concrete complement to adjust reduction. Experiments show that the combination algorithm proposed in this paper are efficient to improve the performance of data center, accelerate the response speed and increase the precision.
Exploiting Thread-Level Parallelism Based on Balancing Load for Speculative Multithreading
Authors: Li Yuan Cheng
Published: October 2014

Speculative Multithreading (SpMT) technology is an effective mechanism for automatic parallelization of irregular programs. While speculative parallelization can potentially deliver significant speedup for irregular applications, several speculative parallelization overheads resulting from the factors, especially inter-thread load imbalance, limit these speedups in practice. Most existing thread partitioning methods are mainly based on heuristic rules strategies to generate speculative threads. However, these heuristic rules extracted from people’s experiences cannot estimate quantitatively but qualitatively the overhead. Based on the thorough analysis of the speculative parallelization overhead resulting from inter-thread load imbalance, we propose a novel method to balance the inter-thread load. In this method, we firstly determine a method by which to unroll the loops. Then, we introduce cluster method to search the solution space of speculative threads and finally get the optimal solution. The experimental results show that, the proposed method can effectively reduce the inter-thread load imbalance; and the load imbalance overhead can be effectively reduced by 43.7%. And we can gain 8.8% performance improvement on Olden benchmark suits.
A Novel Four-Order Chaotic System with N-Attractor Multi-Direction Multi-Scroll Attractors
Authors: Yin Wen Shuang , Wei Dai Jun , Chen Shi Qiang
Published: October 2014

In this paper, a novel four-order system is proposed. It can generate N-attractor multi-direction multi-scroll attractor by adding simple nonlinear functions. We analyze the new system by using means of maximum Lyapunov exponent, bifurcation diagram and Poincaré maps of the system. Moreover, an minimum operational amplifier circuit is designed for realizing 2×(3×3 ×3) scroll chaotic attractors, and experimental results are also obtained, which verify chaos characteristics of the system.
Simulation Model to Assess Electrical Power Generation from Tidal Basin in Coastal Area of Malaysia
Authors: Kor K.Y. , Anuar Shahrani , Shukrie Ahmmad , Ibrahim Hassan , Mahendran M.
Published: October 2014

This article studies the numerical simulation of power generation in four different tidal stations in the East Coast region of Malaysia. The tidal stations are Tanjung Sedili, Tanjung Gelang, Tioman and Cendering. The simulation model is based on power generation using tidal barrage. Ebb, flood and double-mode generations were studied. The tidal basin area was estimated by approximation to generate sufficient electricity for local community consumption. Thus, a different basin area was estimated for every location as each location has different population size. Single-flow generation was assumed for ebb and floor generations with 40% barrage efficiency while bi-directional generation was assumed for double-mode generation with 30% barrage efficiency. Double-mode generation has the highest power generation among the three different methods. Tanjung Gelang has the highest average tidal range difference. However, Pulau Tioman is more suitable to have the tidal barrage as the local community population is smaller, thus, requiring a smaller basin area to generate sufficient electricity to meet the demand of local community. On average, tidal barrage with a basin area of 0.3km2 in Pulau Tioman will be able to generate 13.74 GWh annually.
Mechanical Properties, Swelling Behavior and Morphology Properties of Dynamic Vulcanized Low Density Polyethylene/Natural Rubber/Water Hyacinth Fibers Composites
Authors: Tan Soo Jin , Supri A.G.
Published: October 2014

The effect of dynamic vulcanization and fiber loading on properties of low density polyethylene (LDPE)/natural rubber (NR)/water hyacinth fibers (WHF) were investigated. In this study, the vulcanized thermoplastics were obtained by in situ dynamic curing of LDPE/NR/WHF composites. The LDPE/NR/WHF composites with different fiber loading were prepared by using Brabender mixer at 180 °C with the rotor speed of 50 rpm. The results showed that dynamic vulcanized LDPE/NR/WHF composites gave a higher tensile strength, Young’s modulus, elongation at break but lower molar sorption than unvulcanized LDPE/NR/WHF composites. The SEM micrographs also displayed better fibers dispersion and the crosslink formation in dynamic vulcanized LDPE/NR/WHF composites indicated better interfacial bonding among fibers and matrix compared to unvulcanized LDPE/NR/WHF composites.
Effects of Recycled Silicone Catheter Filled Epoxidised Natural Rubber (ENR 50) on Tensile Properties and Morphology
Authors: Munirah N.R. , Noriman N.Z. , Ting Sam Sung , Ruzaidi Che Mohd , OMAR MOHD FIRDAUS , Zakaria Muhammad Salihin
Published: October 2014

The effect of recycled silicone catheter (rSC) on tensile properties (tensile strength, modulus at 100% elongation and elongation at break) and morphology of recycled silicone catheter filled epoxidised natural rubber (ENR 50/rSC) vulcanizates were studied in loading range of 0 to 50 phr with two different size; fine (300-600μm) and coarse (1-2 cm). For tensile properties, tensile strength, modulus at 100% elongation (M100) and elongation at break (EB) for both ENR 50/rSC fine and coarse vulcanizates show increment up to 15 phr but then decreased as the rSC content increased. Comparison between ENR 50/rSC fine and coarse vulcanizates indicates that ENR 50/rSC fine vulcanizates has better tensile properties than ENR 50/rSC coarse vulcanizates due to better dispersion and filler-rubber interaction as proven in morphological study. The results indicate that the morphology of ENR 50/rSC fine vulcanizate is better than that of ENR 50/rSC coarse vulcanizates in which fine rSC well bonded with ENR 50.
Comparison Induced Voltage between 0.35 mm and 0.50 mm Thicknesses 3% SiFe (NG) with Different Frequency
Authors: Maizana Dina , Yanawati Y. , Nazifah A.
Published: October 2014

– This paper presents the comparison induced voltage between 0.35 mm and 0.50 mm thicknesses 3% SiFe (NG) with different frequency which are 45 Hz, 50 Hz and 60 Hz by using Single Sheet Tester (SST). This experiment used to measure the search coil voltage L1N1 and L2N2 at two positions (1st position and 2nd position) and harmonic content. The analysis shows, at different frequency for both thicknesses, the value of search coil voltage L1N1 is higher than the search coil voltage L2N2 for both positions. It shows the easy direction is single sheet tester direction at the 1st position for 0.35 mm and 0.50 mm thickness with different frequency. For harmonic content, at 0.6 T with different frequency for both thicknesses, the 3rd order harmonic factor of 0.35 mm is lower than 0.50 mm thickness 3% SiFe (NG). It is because the higher losses can increase the harmonic of the materials. It means that harmonic is affected by ingredient and thicknesses in core material.
Effect of Different Type of Rotor Bars on Performance Using FEM
Authors: Maizana Dina , Yanawati Y. , Nazifah A.
Published: October 2014

Different rotor bars type, lower in iron loss, total loss and thicknesses of steel sheets will increase the efficiency of the induction motor. In this paper, the 3-phase 0.5 Hp AC induction motor have been thoroughly investigated and analyzed in term of efficiency, torque, iron loss, total loss and loss field. The comparison is done by software simulation named MotorSolve (IM) that enable user to produces more design of induction motor with result in a short time. Based on simulation, it shows that the Round Bars (RO.B) have more efficient compared to Round Outer and Inner Bars (ROIB) type.
Harmonic Current Effect on Three Phase 100kVA Transformer Losses under Static Load and Dynamic Load
Authors: Maizana Dina , Bt Ismail Emi Zurima , Hussin Nuriziani
Published: October 2014

This paper describes the harmonic current effect under static and dynamic load on 3 phase 100kVA transformer model. The methodology that used to measure a harmonic current is using power analyzer with different excitation. The experiment is conducted by changing input voltage with different flux density. A waveform can be obtained by using the data collected. 3rd order of harmonic gives a high impact to the complex waveform. At 0.6 Tesla, 50 Hz, the 3rd order of harmonic current under static load and dynamic load is 0.00196A and 0.26746A respectively. Therefore, both static and dynamic load were give an effect to harmonic current effect on transformer. This is because when the transformer connected to the load, more current and voltage induced in order to energize the load. Moreover, the loads itself have their own harmonic effect because of the functional mechanism.
Effects of Different Particle Sizes and its Blend Ratios of Recycled Latex Glove Filled Natural Rubber Compound: Cure Characteristics and Swelling Test
Authors: Hazwan S.M. , Noriman N.Z. , Ting Sam Sung , Ruzaidi Che Mohd , Omar M.F. , Zakaria Muhammad Salihin
Published: October 2014

The effects of different particle sizes of recycled latex glove (rLG) on curing characteristics of SMR L were examined. Two different size ranges of rLG particles, i.e., 100-300μm, 2-3 cm were used in this study. The SMRL/rLG composition of 100/0, 100/5, 100/15, 100/25, 100/35 and 100/50 were prepared using a two roll-mill at room temperature. The characterization results of the blends shows that scorch time, t2, and cure time t90 of the SMRL/rLG blends decreased with increased rLG content as well as decreasing sizes of rLG particles due to the existence of cross-linked precursors and unreacted curative in the recycled rubber. Among all blend ratios, the SMRL/rLG blends with fine size of rLG particles exhibit lowest minimum torque (ML) compared with the coarse size of it in SMRL/rLG compound which resulted in more efficient processing. The maximum torque (MH) of SMRL/rLG compound shows a declining trend with increasing rLG content probably due to the poor interactions in SMRL/rLG compound. As the particle size decreased, the contact surface area increased which provided more efficient interfacial bonds, leading to better properties. Results indicated that the fine size of rLG filled SMR L contributed to the better properties compared to coarser size of rLG filled SMR L mainly at 15 phr of rLG.Key words: Recycled – rubber – latex – glove – SMR L
Replacement of Lead by Green Tungsten-Brass Composites as a Radiation Shielding Material
Authors: Azeez Ali Basheer , Mohammed Kahtan S. , Al Bakri Abdullah Mohd Mustafa , Sandhu Andrei Victor , Rahmat Azmi , Kamarudin Hussin , Jamaludin Liyana
Published: October 2014

Lead metal proved to be toxic. Its lethal effect became eminent. Many developed countries have banned lead usage in various applications. Seeking alternative material to replace lead is a crucial goal. As density concerns, tungsten-brass composite is a good candidate for lead replacement. In this study the radiation shielding effects of tungsten-brass composites were evaluated. To attain this goal, four tungsten-brass sets were prepared. The tungsten (W) wt. % in these specimens was ranged from 50 to 80, the balance is brass. The specimens were sintered at 10500C in alumina tube furnace under protective environment. To evaluate the radiation shielding performance of these specimens, two gamma ray sources, 137Cs and 60Co were utilized. The photon energy levels for these sources were of o.662MeV and 1.25MeV respectively. The measurements were performed using gamma spectrometer contains NaI (Tl) detector. The anti-radiation performance of the tungsten-brass was correlated to that of lead under similar conditions. Vickers micro hardness, relative sintered density, micro structural characterisation and linear attenuation coefficient (μ) were carried out. Samples with the highest Weight percentage of W has the highest hardness value while the one with the lowest Weight percentage of W. The linear attenuation coefficients of the specimens were significantly improved by increasing the W wt. % of the specimen. The linear attenuation coefficients of the tested specimens ranged from 0.85±0.010cm-1 to 1.12±0.049cm-1for 60Co and0.73±0.012 cm-1 to 0.97±0.027 cm-1 for 137Cs. This result indicates that W-brass composites are suitable material for lead replacement as a shielding barrier.Keywords: Attenuation coefficient, radiation shielding, lead, tungsten-brass composites, NaI (Tl).
Synthesis and Characterisation of Novel ι-Carrageenan Hydrogel Blends for Agricultural Seed Coating Application
Authors: Hotta Maya , Kennedy James E. , Higginbotham Clement , Morris Noreen
Published: October 2014

Radical science and innovation in farming is vital to produce the food that the world will need by 2050. To feed an estimated world population of nine billion people in 2050, 70 % to 100 % increase in food production will be required if it continues rising at the current rate. The aim of this project is to develop novel revolutionary super absorbent hydrogel coatings for agricultural use. Hydrogel seed coatings improve the rate of seed germination and emergence and enhance seed survival during critical development periods, especially under less than optimal conditions. Preliminary work with ι-carrageenan hydrogel showed a promising results including higher seed germination rates, faster plant emergence, lower water requirement, enhanced root development and potential carrier of nutrients. Two hydrogel blends – agar/ι-carrageenan and xanthan/κ-carrageenan/ι-carrageenan – were synthesised and characterised in this project as potential seed coating materials based on their biodegradable, non-toxic sugar based natural polymers and their excellent water absorbing/holding capability. The newly formulated hydrogels were characterised by swelling studies, rheological measurements and infrared spectroscopy. It was found that the addition of xanthan/κ-carrageenan into ι-carrageenan hydrogel improved the water absorbing capacity from 117.90 % to 139.05 %, the life-span of the hydrogel from 6 hr to 24 hr in excess water and the gel strength from 108.4 Pa to 267.98 Pa. The addition of agar into ι-carrageenan showed an increase in gel strength and a greater improvement in water holding capacity giving 67.33 % water content while ι-carrageenan on its own had only 39.64 % after 72 hr of incubation at 30 °C, which showed higher potential to be used in drought conditions. The ATR-FTIR results proved that the hydrogels were physically cross-linked. A further evaluation such as the germination profile test is required to test the effectiveness of the hydrogel coatings on seeds. It is anticipated that this work will be extended to coating different seed varieties in the future with these newly developed hydrogels.
Melt Processed Polymer Blends for Potential Regenerative Medicine Applications
Authors: Kenny Elaine , Devine Declan M. , Higginbotham Clement L. , Geever Luke M.
Published: October 2014

There is an urgent and unmet requirement for biocompatible and biodegradable implants that gradually resorb when implanted in vivo. This study examines the potential of melt extruded thermoplastics polyethylene oxide (PEO) and polycaprolactone (PCL) in the area of regenerative medicine. Various ratios of PEO and PCL were melt blended and analysed in order to obtain an optimised breakdown rate. Subsequently the effect of varying the molecular weight of PCL using a constant molecular weight PEO was also examined. Samples were characterised using melt flow index (MFI), differential scanning calorimetry (DSC) and breakdown analysis. It was found that by altering both the concentrations of PEO/PCL and the molecular weight of PCL, melt viscosity, breakdown rate and thermal properties could be modulated to produce potential implant materials with a tailored breakdown rate.
The Multi-Scale Hough Transform Lane Detection Method Based on the Algorithm of Otsu and Canny
Authors: Chai Yu , Wei Su Jing , Li Xin Chun
Published: October 2014

In order to improve the accuracy of detecting lane for automatic vehicle driving, a method for detecting the straight part of Lane is proposed, which is the Multi-Scale Hough transform method for lane detection based on the algorithm of Otsu and Canny. First of all, by the methods of Otsu to segment image and use the morphology operation of erode and dilate to wipe off the information of roadside trees and fences to strengthen the road boundary characteristics.Then the lane edge and feature is gained by the canny operator. At last, using Standard Hough Transform, Progressiveness Probabilities Hough Transform and Multi-Scale Hough Transform complete the detection of lane’s straight part. The experimental results show that, Multi-Scale Hough Transform method can accurately detect the lane line and provide the reliable basis for the path planning, automatic follow-up vehicle driving and lane departure warning.
Simulation for SAR Feature Image of Planar Structures
Authors: Tao Qi Cheng
Published: October 2014

With the progress of the SAR technology, the resolution of SAR image has enhanced constantly. The characteristics of the structure is starting to look increasingly apparent. The simulating to the structures’ characteristics of SAR image can helps people access to the target information which is contained in SAR image easily in complex cases. This paper presents a simulation based on model-cutting, combined with the technique of ray-tracing to simulate the typical SAR image characteristics of target structures of the city. For example, layover, shadow, and other major features such as secondary scattering. This method can effectively simulate typical SAR image plane of the structure, and without regard to the specific physical imaging mechanism itself, is a simple and effective manner SAR image simulation methods.
Simplified Design Method of GRP Pipes in Different Design Service Life
Authors: Chen Jian Zhong , Zhu Si Rong
Published: October 2014

In practical engineering design service life of glass fiber reinforced plastics (GRP) pipes have different requirements. The current specification for different engineering structure design life design only considers the change of variable load. The material properties of GRP pipes can be varied with the service life, which must be considered in the design. Through the analysis of the existing standard design method and principle, the double logarithmic linear extrapolation further promotion, and combine the reduction coefficient method, a simplified design method for GRP pipes of different design service life, which has strong reference significance and application value.
Solving the Problem of UAV Air Combat Game Based on Differential Variational Inequality and D-Gap Function
Authors: Xu Guang Yan , Li Ping , Zhou Biao
Published: October 2014

The strategy of unmanned aerial vehicle air combat can be described as a differential game problem. The analytical solutions for the general differential game problem are usually difficult to obtain. In most cases, we can only get its numerical solutions. In this paper, a Nash differential game problem is converted to the corresponding differential variational inequality problem, and then converted into optimal control problem via D-gap function. The nonlinear continuous optimal control problem is obtained, which is easy to get numerical solutions. Compared with other conversion methods, the specific solving process of this method is more simple, so it has certain validity and feasibility.
Design and Implementation of JMF-Based VOD System
Authors: Qiu Na , Du Huai Chang
Published: October 2014

Video on Demand system is also known as interactive television-on-demand system. It is a two-way audio and video-on-demand system and realizes to play video program according to the user’s needs, which is based on the new concept of “user independent”. This paper briefly introduces the concept of video-on-demand system, streaming media transmission protocol, JMF features and structure and describes the overall structure and function of each part of the on-demand system.
Research and Implementation of Internet Topology Based on AB Model
Authors: Ge Guo Zhou , Pan Jing Chang , Liu Cong
Published: October 2014

Complex network topological characteristics are mainly reflected in the next three different kinds of features, like the power-law distribution, the rich-club characteristic and assortativity coefficient. With increasing the number of the network’s nodes and edges and resetting the edges, AB model generator makes the network to grow and expand effectively. This paper has realized the generator with the algorithm to get a topological network. And based on that, this paper has also done some comparative analysis between AB network and the WEB network. Experimental results show that the two networks are similar on the power-law distributions and some other characteristics, and both of the two networks are disassortative.
"The Last Kilometer" Network Optimization Research of E-Commerce
Authors: Zhuang Yu Feng , Wang Zhi Wei
Published: October 2014

In this paper we present a series of more rigorous steps, using a location model and take into account the actual roads’ condition, rents and other relevant factors to solve the network location problem. And we put forward a new idea to solve the "the last kilometer" problem of e-commerce’s network optimization.
The Influence on the Consumption Level of Tibetans
Authors: Liu Shu Te , Liu Hua , Long Guo Liang
Published: October 2014

Transportation is the accelerator in the development of regional economy. Since the peaceful liberation of Tibet in 1951, central government has invested heavily to Tibet on the construction of civil aviation, highway and rail transportation network system, which promotes the circulation of people and goods between Tibet and outside world. Tibet’s economy has developed fast after the improvement of transportation, and people’s living standard has also been raised vastly. By researching in the history and current situation of people’s consumption level and transportation condition in Tibet, the thesis established in Tibet road transport for urban residents and farmers and herdsmen affect the level of consumption and other economic models. Results show that Tibet road transport impact to the influence of the urban residents consumption level is greater than the impact on the farmers and herdsmen consumption level, and the main factors influencing the road freight volume by empirical analysis conclusion.
The Research of the Interactive Translation Teaching Method Based on the Network - Taking the Reform of Translation Teaching in NCIST as the Example
Authors: Yu Xiao Huan , Hou Li Mei
Published: October 2014

Translation course, as one of the core curriculum courses in foreign language teaching, plays a very important role in cultivating the practical, applied and inter-disciplinary talents. There arises an increasing demand for translators, especially in current China’s economy transformation period. It’s the key task which higher education must confront with that how to cultivate the translators who can adapt to the social development and satisfy the social demand. Taking an example of translation course reform in NCIST, the paper tries to explore the possibility of the interactive translation methods under the circumstance of network platform. Through this analysis, we try to reform the traditional translation course in order to cultivate the real applied talents of innovation and translation ability.
Effects of the Stress Concentration and Plane Stress on the Essential Work of Fracture (EWF) Method
Authors: Zhao Chao , Chen Xiong , Zhou Chang Sheng , Wang Hong Mei
Published: October 2014

In this article, we used standard dumbbell specimen (SDS), compact tension specimen (CTS) and Double edge notched specimen (DENS) which made of materials of modified double-base propellant to do the uniaxial tensile experiments under different tensile rates. In comparison, three kinds of specimen whoes geometric features are similar with the specimen above but the thickness is smaller, were also used to get the relationship of force (F) and displacement (l). After analysis of these relationship, we confirmed that the plane stress and stress concentration influence the use of EWF method. The experimental results prove that the geometric features of the specimen which are proposed by B.cotterell and J.K.reddel are absolutely right. But for the thicker specimen used by GUAN GONG and other researchers, we can just know the trend is correct, and should do further research to know the influence which specimen’s geometric characteristics bring to experiment.
Ultrasonic Cavitation Based Processing of Metal Matrix Nanocomposites: An Overview
Authors: Sardar Santanu , Karmakar Santanu Kumar , Das Debdulal
Published: October 2014

Metal matrix nanocomposites (MMNCs) have emerged as an important class of materials for structural applications specifically in the automobile and aerospace sectors; however, development of cost effective mass production technique of MMNCs with requisite operational and geometrical flexibilities is still a great challenge. Focused research in the last decade has highlighted that ultrasonic cavitation based processing is the most promising method for manufacturing of MMNCs with nearly uniform distribution of nanoparticles, having added advantage of being a liquid-phase route. This article presents an overview on the basic principles and recent advances in the ultrasonic cavitation based processing of MMNCs with a particular emphasis on identifying relationships amongst processing variables, microstructural parameters and mechanical properties. Critical issues of MMNCs fabrication are discussed.
Kinect-Based Badminton Action Analysis System
Authors: Ting H.Y. , Sim K.S. , Abas F.S.
Published: October 2014

In sports, players have to perform body movement in a specific manner in order to obtain desired training effect. Badminton is one of Malaysia’s most popular sport, but there is still lack of research on action analysis focusing on this sport. In this paper, a method to analyze badminton action from depth map sequences acquired by Microsoft Kinect sensor is proposed. A compact and view invariant representation of the joint movement, namely region of movement index is generated from the three-dimensional coordinates of the tracked joint. Then, the overall or frame-based performance variation between the expert and learner is computed by mapping using dynamic time warping algorithm.
The Characteristics of Dyed Fancy Yarn Formation Pattern Research
Authors: Wang Bian Rong , Chen Jie , Xin Xiao Yu
Published: October 2014

Based on the research of the current situation of design and production of fancy yarn, the article point out the reason why the current development of fancy yarn has been limited. Chose dyed fancy yarns in different length as subjects of contrastive experiment, the authors further analyze the different pattern shape caused by the different width of basic fabric formation during the production of fancy yarns. And after the primary discussion of the changing rules and main impact factors of the formation of the fabric pattern, this paper comes to a conclusion, which is with great practical importance to the current development of sweater products, that there is a close relationship between the pattern change of the fancy yarn and the section length of the dyed circle, the proportion of dyed yarn and the width and formation of the fabrics.
Chitosan Phase Change Fiber Rheology and its Performance Study
Authors: Gao Ling , Zheng Lai Jiu , Wei Ju , Du Bing , Yin Peng Peng
Published: October 2014

Optional viscosity average molecular weight of chitosan 3 × 105, the nanophase change microcapsules were mixed in the preparation chitosan spinning dope. Viscometer was used to measure the rheological properties of blend spinning fluid, using infrared spectroscopy,scanning electron microscope (SEM) and the interactions between the studies of phase change fiber surface microstructure. The results show that, blend spinning fluid is generally the basic characteristics of non-Newtonian fluid, with concentration of spinning solution, viscosity increases; temperature rise, viscosity decreased; prolonged standing, viscosity decreased. Chemical changes occurred between chitosan and microencapsulated phase change,no new chemical bonds, for a simple physical blending. By scanning electron microscope, along with the increase in the amount of phase change nanomicrocapsule, fiber surface is obvious.
The Origin and Spread of the Technique of Cotton Cultivation in Ancient China
Authors: Liu Yun Ying , Zhang Yan , Cheng Long Di
Published: October 2014

This paper explains that the origin of the technique of cotton cultivation in China needs further demonstration according to historical data and archaeological materials. Although the specific time quantum can’t be inferred concerning the spread of cotton in China, but it is clearly demonstrated that in ancient China, the technique of cotton cultivation in the southwest district, mainly about shrub ceiba, is earlier than that in northwest district which is largely based on Levant cotton.
Application of Sector in Costume Design
Authors: Huang Jun Min , Li Xiang , Sun Yu Fang , Wu Hong Fang
Published: October 2014

Sector is an important part of Chinese elements. This work elaborates on the origins of sector and its endowed connotations, cultural significance and unique characteristics. The application of sector in product and costume design is also introduced in this study. While discovering the unique artistic charm and profound cultural connotations of sector, this work aims to explore its distinctive national flavor and its contribution to modern costume design, which provides fresh ideas for designers.
The Historical Origin between Shandong Folk Art and Modern Fashion Design
Authors: Zhang Jun Hua
Published: October 2014

Shandong folk art, full of artistic connotation, has a long history, which is an important source of fashion design. This article makes an analysis of the specific application and embodiment about the Shandong folk art elements in modern fashion design fabrics, styles, colors from the Shandong traditional paper-cut art, ceramics, painting, textile technology and fashion design style, and so on. At last, it puts forward the viewpoint of drawing lessons from the traditional folk art the creation of humanity, design pattern and heritage enrichment in the modern fashion design.
The Necessity of Stab-Resistant Body Armour for Protecting Prison Officers in Saudi Arabia
Authors: Mahbub Rana Faruq , Wang Li Jing , Arnold Lyndon
Published: October 2014

Protection and comfort are significant aspects for body armour. This study surveyed 102 prison officers in Saudi Arabia about their opinion on the current body armour they may use in terms of protection and comfort. This is to understand the need for protection with body armour and improve protective fabric designs with enhanced comfort performance for future soft body armour. From the information gathered via a questionnaire survey, the risk assessment inside the prison and the percentage of prison officers being attacked were determined. The results revealed that 12% of male and 29% of female prison offices were attacked and protective measures against this violence level cannot be ignored.