bluuebunny/crossref_metadata_2025 huggingface dataset:
Research on Anti-Jamming RF-EAS System
Authors: Li Wei , Deng Ji Cai , Zhang Yan Bin
Published: October 2014

This thesis takes AIO (All-In-One) type of RF-EAS systems as the object, to study how to improve its anti-interference performance. Interference noise in the article is divided into two types, which are steady noise and transient noise. According to the characteristics of different interference noises, their impacts on all aspects of the system are fully analyzed, and then, we give a series of targeted hardware and software measures. Finally in this paper, the adaptability of the system is studied, and we presented a feasible way to improve the anti-interference ability and stability of the system.
Technical Principle and Application of H3C IRF
Authors: Liu Tian Bo , Liu Yu , Zhao Sheng Bin
Published: October 2014

In order to improve network reliability and stability of the core layer, multiple devices are connected together through the IRF physical port, IRF (Intelligent Resilient Framework) configuration, virtual into “virtual equipment”. Using the virtualization technology can set the equipment resources of the hardware and software processing capability, collaborative work, the equipment management and the uninterrupted maintenance. Through introduce the basic concepts and working principles of H3C Switches IRF system, also analyzes the typical applications of IRF technology in network system.
The Effect of Reaction Parameters on the Structural NaYF4 Microcrystals
Authors: Li Xin Li , Ma Zhan Hong , Wang Yun Fei , Ren Feng Zhang , Xu Rong Hui
Published: October 2014

NaYF4 microcrystals were synthesized using a hydrothermal method, and the effects of the EDTA and NaF addition amount on the crystal structure, morphology and size were systematically studied. When the NaF addition amount increase, the size of the NaYF4 microcrystal increase, the excess F- ions promote the formation of β-phase of NaYF4. EDTA significantly modifies the morphology of the crystals. When addition the EDTA the crystals transition from irregular silkworm-like microcrystal to hexagonal microprisms. And the EDTA also promote the hexagonal phase formation.
Two Meta-Heuristics for Solving Unconstrained Optimization Problems and Machinery Problems
Authors: Aungkulanon Pasura
Published: October 2014

Machining optimization problem aims to optimize machinery conditions which are important for economic settings. The effective methods for solving these problems using a finite sequence of instructions can be categorized into two groups; exact optimization algorithm and meta-heuristic algorithms. A well-known meta-heuristic approach called Harmony Search Algorithm was used to compare with Particle Swarm Optimization. We implemented and analysed algorithms using unconstrained problems under different conditions included single, multi-peak, curved ridge optimization, and machinery optimization problem. The computational outputs demonstrated the proposed Particle Swarm Optimization resulted in the better outcomes in term of mean and variance of process yields.
Adaptive Ensemble Learning Recommendation Algorithm
Authors: Luo Zhong Hua , Yang Yang
Published: October 2014

In order to solve the problem of low accuracy of single model collaborative filtering, this paper proposes an adaptive ensemble learning recommendation algorithm (AdaELRA). In the algorithm we minimize the prediction error through the gradient descent method, and set as the deviation coefficient to adaptive the prediction error, so that the sample weights will be more in line with the predictions. Theoretical analysis and experimental results show that the algorithm this paper proposed reduce the time complexity and it can improve the accuracy significantly.
Research on Efficiency Evaluation Model of Electric Power Information System
Authors: Li Yue , Liu Wei
Published: October 2014

he information technology has greatly driven the development of Smart Grid, however, the risk of system operation has been significantly increased simultaneously with improving the intelligent operation level of Grid system, therefore, how to construct an efficiency evaluation model of electric power information system effectively has been becoming an important subject to be explored for many experts. And based on that, this paper presents an efficiency evaluation model of electric power information system in view of the adjacency matrix. Firstly, the attack process is divided into two stages from the perspective of an attacker, namely, selecting to attack the access points and attacking other access points; secondly, it describes the intelligent selection capability of the attacker by using the transfer probability index between the nodes; finally, it conducts the computational analysis by introducing an example, to prove the practical applications of the proposed methods.
Research on Electric Power Communication Optical Fiber Transmission Network Evaluation and Optimization Method
Authors: Xia Fei , Xia Zong Ze , Huang Xiao Bo
Published: October 2014

With the improvement of power industry modernization, electric power communication service object is no longer confined to the electric power dispatching, and the scope of services business also won the development, which requires the power system communication network is stable, reliable and efficient. The reliability of the power system optical fiber transmission network operation is an important guarantee of electric power system`s production safety and efficiency. In order to facilitate the planning and design of optical fiber transmission network management and maintenance, this paper proposed an optimization strategy based on the analysis and research of electric power communication optical fiber transmission network evaluation methods.
Speech Enhancement on Over-Complete Dictionary and Threshold Orthogonal Matching Pursuit
Authors: Cui Xiao , Zhang Wu Qing
Published: October 2014

In order to suppress the noise, improve equipment's ability to further process information and improve the quality of voice, speech enhancement is often an important part of the speech signal preprocess. Contrastively analyze the characteristic that the clean speech signal coefficients in over-complete discrete cosine dictionary are much sparser than the traditional discrete cosine transform coefficients. Under noisy conditions, by setting the iterative threshold of orthogonal matching pursuit (OMP) algorithm, clean speech can be gotten, thus realize the speech enhancement. Simulation results of the signal waveform and spectrogram enhanced by the proposed algorithm are very similar to the original signal,comparative experiments also indicate that the signal to noise ratio (SNR) and the perceptual evaluation of speech quality (PESQ) score of the processed signal are superior to traditional discrete cosine transform (DCT).
Short-Term Hydrothermal Scheduling Based on Harmony Search Algorithm
Authors: Ren Ping , Li Nan
Published: October 2014

In this paper, the nonlinear optimal control problem is formulated as a multi-objective mathematical optimization problem. Harmony search (HS) algorithm is one of the new heuristic algorithms. The harmony search (HS) optimization algorithm is introduced for the first time in solving the optimal short-term hydrothermal scheduling in power systems. A case on consisting of 9 buses, 11 transmission lines, four thermal plants and three hydro plants in Indian utility system is presented to show the methodology’s feasibility and efficiency. Compared with the optimal short-term hydrothermal scheduling of power systems, the search time of the HS optimization algorithm is shorter and the result is close to the ideal solution.
Highway Lane Detection Based on a New Gray Method
Authors: Peng Yan Zhou , Gao Hong Feng
Published: October 2014

a new gray method is provided in this paper for highway lane detection. Firstly, the novel gray method transform an RGB color image to a gray-level image based on a new gray vector. To deal with illumination changes, the new gray vector is updated on real-time.Secondly,the canny edge detector’s threshold values are decided adaptive.Lastly,Hough transform method realizes the detection of lanes. For different time in a day, experiments indicate that the proposed algorithm has good results.
A Research of the Application of Visual Simulation Technology in College English Teaching
Authors: Zhuang Yu Lan
Published: October 2014

The purpose of college English teaching is to improve students' English ability in comprehensive hearing, speech, reading, writing and other aspects, and the key measure to improve language skills is to create a good English interaction circumstances for students. In recent years, with the rapid development of science and technology and continuous development of teaching philosophy, the use of visual simulation technology to promote the issue of college English teaching gradually come into the people’s horizon. Visual simulation uses high-end computer technology to form an virtual environment integrated with the visual sense, auditory sense and tactile sense, which is widely used in research because of its good interaction and environment immersion. This article will analyze the theoretical basis of visual simulation technology in college English teaching, conduct a detailed analysis of its application value and explore the visual simulation technology application foreground in college English teaching.
Application Research of Information Technology in Music Education
Authors: Huang Hai Yan , Chen Zhong
Published: October 2014

The continuous development of information technology has been widely used in modern education sector. Music is in change mode of education reform period, the use of media technology in teaching effectiveness, improving fit and modern music teaching information, teaching resources are fully utilized. Information technology can be applied to many music teaching resources, especially the Internet and multimedia technologies, to expand the field of music teaching resources provide great help, plus many support computer hardware and software, will be the main future of music education reform measures.
Thermally Activated Delayed Fluorescence Materials Based on Carbazole/Sulfone
Authors: Huang Bin , Jiang Wei , Liu Yuan Yuan , Zhang Ya An , Yang Ya Ping , Dai Yu , Ban Xin Xin , Xu Huan Ge , Sun Yue Ming
Published: October 2014

A series of bipolar materials for thermally activated delayed fluorescence (TADF) based on carbazole and diphenylsulfone, is synthesized by Ulmann and Suzuki coupling reactions. In these materials, the 3,6-di-tert-butylcarbazole and N-phenylcarbazole group as donors are linked at the 3-, 4-position of diphenyl sulfone. The electronic, photophysical and electrochemical properties of these materials are studied by extensive UV-vis, fluorescence spectroscopic measurements, cyclic voltammetry as well as theoretical calculations. The energy gap between singlet and triplet (△EST) in these materials is tuned from 0.99 eV to 0.24 eV by changing the donor units and the positions of substitution.
Composition and Microstructure of Cement-Like Materials Synthesized by Solution Combustion Technique
Authors: Jongprateep Oratai , Laomorakot Prawin , Sirinunwatana Krongkarn
Published: October 2014

Massive production of Portland cement through mining process imposes detrimental effects on environment. Utilization of industrial and agricultural wastes as alternative raw materials for cement production, thus, has a pronounced positive impact on human quality of life. This study aimed at synthesizing constituents that exist in Portland cement by the solution combustion technique. Cockleshell, rice husk ash, and alumina wastes were used as initial reagents for the synthesis. Compositional analysis of the synthesized powders exhibited desired phases of dicalcium silicate, tricalcium silicate, and tricalcium aluminate. Compositional and microstructural analyses of the specimens cast from combusted powders revealed similar features compared with Portland cement. Ettringite, calcium hydroxide, and calcium silicate hydrate were prominent phases observed from both compositional and microstructural analyses.
Research on the Influence of Multimedia Teaching Technology of College Physical Education Teaching
Authors: Feng Gao
Published: October 2014

The multimedia teaching technology is becoming more and more widespread in education, teaching and application, which also plays a positive role in promoting physical education teaching in colleges. This paper discusses the multimedia teaching technology for the promotion of sports teaching in colleges and universities, and analyzes influence of the multimedia teaching technology to the physical education teaching in colleges , based on which the technology of multimedia teaching in the universities sports teaching application problems and solving suggestion are briefly introduced, which is aim to solve these problems for colleges ,and to play a positive role in promoting multimedia teaching technology in physical education teaching in colleges .
On Sanda "Time Difference" and the Use of Training Methods
Authors: Wan Hui Zhen , Luo Fang Cheng
Published: October 2014

Sanda is an unarmed combat technique, has a strong confrontational, in the use of kick, hit, throw the technical action when the time to grasp the difference between good and bad, is directly related to the outcome of the game, the time difference is the use of learning must be mastered Sanda content, but many Sanda practitioners lack of theoretical and practical experience in this area. In this paper, literature, expert interviews, analysis, logical approach explains the concept and application of Sanda time difference in actual combat, and to analyze and discuss their practice training methods, to make Sanda practitioners of the time difference in the Competition of there is a clear understanding of the importance to improve the combat level Sanda.
Design and Realization of the Credit Card Management System
Authors: Zhang Pu
Published: October 2014

For the convenience of customers and bank managers to the management of credit card, credit card management system includes client money query, customer consumption management, credit card accounts, sales management, credit ratings, statistics report, the number of overdraft statistical function module, etc. This design USES the ACCESS to do background database, using vc + + development environment, combined with a c + + programming language implementation. The credit card information query and statistics report, open an account pin is the characteristics of this system. In particular System "query module" function greatly reduce the workload of staff, and to the rapid, accurate, and other advantages replace manually operated, and improve the efficiency of the credit card management.
The Application of VaR Methods in Financial Risk Management Research
Authors: Liu Ruo Min
Published: October 2014

With the development of financial markets, financial products innovation and global competition intensifies, the risk of financial market in China will be more complex and varied. How to deal with these risks and effective management has become the crucial problem of the financial institutions and regulators. VaR model as a tool to measure market risk, is increasingly becoming the current international financial mainstream risk management and financial supervision method, wide support and recognition by the international financial community. This paper introduces the background and meaning of the VaR method and studied the VaR method in the application of all kinds of financial risk management.
A New Reducing Analysis Based on SVM for Farmers Professional Cooperative Management
Authors: Wang Hong , Dai Peng Jun
Published: October 2014

]: In this paper, a rural credit risk control factor was studied from the perspective of financial institutions. It was used of 386 farmer households from Heilongjiang province credit investigation data to carry out empirical. The article from the farmer’s farmers professional cooperative level of wealth, the level of debt, level of education, use of the loan in four aspects the establishment of rural credit risk identification index system, Construction of support vector classification model and the Logistic regression model. The results show that, Wealth and education levels have positive correlation, indebted level and use of the loan has negative correlation.Keywords: Management System; Support vector machine; Farmers Professional Cooperative;
The Awareness of Brand Building and the Brand Building Strategic Actions of Chinese Health Food
Authors: Yang Xue Xin
Published: October 2014

The legal status of Chinese health food was cleared by the promulgation and implementation of Food Safety Law of the People’s Republic of China once again, it is proposed that more influential health food brand with Chinese characteristics, which main raw materials is Chinese medicine, should be created facing new supervision form and opportunities of industry development in Chinese health food. To build Chinese health food brand strategy action should be established four philosophy: integrity hing enterprise is enduring magic, honesty quality is the fundamental strategy, the brand is the company's flagship, ensuring food safety is our permanent commitment. And focus on brand positioning, scientific and technological investment and brand innovation to guarantee the food safety of the people effectively and meet the health needs of people, in order to promote the healthy development of health food industry and improve the international competitiveness of Chinese health food continuously.
Plastic Application in Product Design
Authors: Zhang Xiao Zun
Published: October 2014

The plastic has become one of the most widely used material. Current also has the extremely widespread application in the field of product design. Types and characteristics, this paper analyzes the commonly used plastic and plastic application in product design are discussed in detailed research.
Ergonomics Layout Optimization of the Aircraft Cockpit Based on Particle Swarm Optimization
Authors: Liu Xin , Yu Sui Huai , Gong Tian Cheng , Zhang Qing , Zhao Ming Lei , Zhang Wan Yu
Published: October 2014

The problem of neglecting ergonomic factors on the aircraft cockpit layout design which leads to the pilots feeling tired very soon should be solved imminently. Since there are a lot of ergonomic constraints while there are hardly any algorithms to solve the problem, the particle swarm optimization is mentioned. Firstly, ergonomic geometric constraints and ergonomic space constraints are confirmed. Secondly, the objective function is confirmed based on the minimum Euclidean distance. Thirdly, to avoid local optimum, particle swarm optimization is used to find the best coordinate values of facilities. At last, the best values of different facilities are needed to be compromised by each other to confirm the most proper values for every facility and form the optimal scheme of designing the layout of aircraft cockpits.
An Analysis of the Impact of Safety Insecurity and Atmosphere on Safety Behavior
Authors: Shin Yoon Seok , Kim Gwang Hee
Published: October 2014

Employment insecurity and an insecure safety atmosphere are the main factors that deteriorate the morale of construction workers [1]. These are both indirect causes that may have a great impact on the risk of an accident in the long term, and as such need to be studied [2]. Therefore, this study examines the relationship between employment insecurity and safety atmosphere and the safety behavior of construction workers. Through verification of the model presented in this study, it was proven that employment insecurity and safety atmosphere have an impact on safety behavior.
Analysis of Water Quality and Control Countermeasures of Yazidang Reservoir in Ningxia, China
Authors: Zheng Lan Xiang , Ran Yu , Yang Cheng , Li Chun Guang
Published: October 2014

Yazidang Reservoir is a pumped-storage reservoir for water supply in Ningdong Chemical Industry Base of Ningxia, China. It plays an important role as a source of drinking and industrial water supply. Analysis of the water quality from March 2013 to May 2014, the results show that: For organic descriptors, value of CODCr, CODMn and DO can satisfy with class III, but some values of BOD5 exceed the standard limitation. For index of nutrients, some values of TP exceed the standard, and TN greatly exceed the standard limitation. Using potential eutrophication to evaluate the reservoir water quality, the results show that Yazidang Reservoir is on a very high level of nitrogen and phosphorus nutrition, reach to level of eutrophy-extremely eutrophy. Considering the current situation of water quality in Yazidang Reservoir, some countermeasures should be carried out for pollution prevention and control of water quality, such as strengthening management, enhancing water quality monitoring and water quality evaluation, simulation, eutrophication control and estimation environmental capacity of reservoir.
Apparatus Determining Water Activity with Isopiestic Method and Measurement of Water Activity
Authors: Han Hai Jun , Guo Li Jiang , Yao Yan , Zeng De Wen
Published: October 2014

A new apparatus determining water activity using isopiestic method was developed. The water activities of the systems of LiCl−H2O, NaCl−H2O and KCl−H2O at 298.15 K were measured using isopiestic method. Compared with the literature, the results of measurement are in good agreement with the literature, and the apparatus reliability was verified.
Application of the Blast Furnace Top Gas Instead of Nitrogen after Pressurizing
Authors: Wang Yan , Dai Liang
Published: October 2014

Abstract: In view of the situation of domestic iron and steel enterprises to energy-saving, consumption reduction, reducing emissions, to improve the environment and the development of circular economy, the gas of the top tank pressure relief from six blast furnaces in Baotou Group is recycled in the project which has been used in blast furnace of developed countries for more than twenty years. Although China is a big country of iron and steel, it has always belonged to the rough type development, and there has been no precedent application. This design solved the long-standing top charging even pressure diffused pollution of the atmosphere and the noise pollution to the surrounding environment, in addition to recovery the gas recycling.
Construction of User Response Subsystem for Energy Efficiency of Electric Power Supply and Demand System
Authors: Tang Xin Fa , Wu Li Hong , Wan You Wei , Cheng Yue Ming
Published: October 2014

The improvement of energy efficiency in electric power supply and demand system is involved in energy production, distribution, and using, which is a complex engineering system. Using the system theory we studied the optimization of overall resources of electric power supply and demand system. After the complex feedback mechanism of energy efficiency improvement analyzed in electric power supply and demand system, we thought that only by construction of user response subsystem can improve the energy efficiency of electric power supply and demand system. Then, some feasible suggestions for user responding subsystem were put forward.
A Kind of Novel Dual-Core High Birefringence Photonic Crystal Fiber
Authors: Sun Yu Wei , Bai Yu Kun
Published: October 2014

A dual-core photonic crystal fiber (PCF) with high birefringence, short coupling length and broadband flat dispersion is proposed in the paper. The symmetry of the original symmetric structure composed of hexagonally distributed air holes is distorted by replacing the innermost 12 air holes with 6 elliptical air holes. The characteristics of the dual-core PCF such as birefringence, coupling length and chromatic dispersion are analyzed by tuning its structural parameters. The results demonstrated that the dual-core PCF exhibits simultaneously a birefringence of up to 10-2, a coupling length of 68.178 for the x-polarization and 74.825 for the y-polarization, and a broadband flat dispersion ranging from 1.1 to 1.6. The novel dual-core PCF may find applications in polarization-maintaining fibers and fiber-based polarization beam splitters/couplers with broadband flat dispersion.
Effects of Preparation Parameters on Morphology of Cellulose Nanowhiskers
Authors: Phanwiroj P. , Tanpichai Supachok , Potiyaraj Pranut
Published: October 2014

This research will thus try to broaden the properties of bioplastics to be used as smart materials. Cellulose nanowhiskers will be initially prepared from different cellulose source and its morphology will be investigated. Water-activated shape memories nanocomposites will be consequently prepared from the obtained cellulose nanowhiskers and three polymers those are PBS and PBAT. The mechanical, physical and morphological will be investigated. The influences of cellulose nanowhiskers and their morphology on water-activated shape memory behavior will be studied.Recently, natural fiber have extensively used as reinforcement materials in polymeric nanocomposite due to environment concerns. Cellulose nanowhisker (CNWs) have also attracted much attention as environmentally friendly nanofillers for polymer composites. Cellulose nanowhiskers were extracted from commercial source, paper filter and alpha cellulose, using acid hydrolysis by sulfuric acid with various hydrolysis times (20,45,70,95,120 minutes), temperature (35,45,60°C). The hydrolyzed cellulose was neutralized with two different techniques, dialysis and titration. The samples were then sonicated and dried with a freeze dryer. The effects of preparation conditions on the morphological of cellulose nanowhisker were investigated. Cellulose nanowhisker powders were characterized scanning electron microscopy (SEM) and transmission electron microscope (TEM). The results showed that it was possible to obtain ultrathin cellulose nanowhiskers with diameters as low as 9 nm. A possible correlation between preparation conditions and particle size was not observed but titration technique time process was reduced.
Remediation of Marine Sediments Contaminated with PAHs Using Sodium Persulfate Activated by Temperature and Nanoscale Zero Valent Iron
Authors: Chen Chiu Wen , Binh Nguyen Thanh , Chang Yi Kuo , Hung Chang Mao , Dong Cheng Di
Published: October 2014

The oxidation of 16 polycyclic aromatic hydrocarbons compounds (PAHs) in sediments by sodium persulfate (Na2S2O8) activated by temperature and nanoscale zero−valent iron (nZVI) as the source of catalytic ferrous iron was investigated. The effect of various controlling factors including S2O82− (0.017–170 g/L), nZVI (0.01–1 g/L), and temperature (50–70°C) were performed. The efficiency to remove PAHs was not too high as 10.7–39.1% for unactivated persulfate. Results from experiments indicate that increasing temperature or the addition of nZVI into a persulfate-slurry system could enhance the persulfate oxidation process. The best removal efficiency (86.3%) was attained after 24 hr while adding nZVI (0.5 g/L) to persulfate (170 g/L) at temperature of 25°C. The results of our study suggest that nZVI assisted persulfate oxidation without elevating temperature is a suitable and economic alternative for the ex–situ treatment of PAHs contaminated sediments.
Research of Inlet Air Quantity for Mechanical Cooling Tower
Authors: Yang Bo , Yan Wen Zhou , Chen Liang Cai
Published: October 2014

The functional relation of inlet air quantity, total heat load, ambient air temperature and humidity of the mechanical cooling tower was analyzed. The curves of inlet air quantity with total heat load, ambient air temperature and humidity were plotted by programing. The results show that the inlet air quantity will increase linearly with total heat load and with ambient humidity as well, but the influence was less. Finally the function of inlet air quantity for mechanical cooling tower is fitted. The function can calculate the inlet air quantity for automatic control system of mechanical cooling tower, to achieve the goal of energy saving.
Research on a Portable Detection Device of DC Electric Energy in Electrical Vehicle Charging Station
Authors: Han Shuai , Zeng Bo
Published: October 2014

To meet the testing need of wide range DC electrical energy meter in charging stations with the promotion of electrical vehicles, implementation of a portable DC electrical energy meter detection device is proposed. Based on the existing DC electrical energy meter testing procedure, the implementation, detection principle, hardware design and software ideas are introduced. Experiments show that the system can automatically detect the setting items and the testing results are reliable. Strong technical support and service for the development of electric vehicle charging stations is provided.
Risk Assessment on Fuzzy Fault Tree Analysis for Power Transmission Line Field Maintenance Work
Authors: Li Zhi Hui , Gao Qin Xiang , Hui Jie
Published: October 2014

This paper introduces a fault tree (FT) method based on fuzzy numbers, aiming to deal with the inadequate statistics and the uncertain probability of the basic events during the fault tree analysis for power transmission line field maintenance work. Based on expert judgment, the Delphi method is used to transform fuzzy language to triangular fuzzy numbers, finally an approach for defuzzification is developed. A typical hazard in replacing the linear composite insulator of 500kV transmission line field maintenance work is presented for a case study. The method is conducive to a better risk pre-control and decision-making.
Simulation Analysis of Temperature Field of Permanent Magnet Governor
Authors: Wang Yan Jie , Zhou San Ping
Published: October 2014

In the operation process of permanent magnet governor, the temperature rises due to eddy current loss, and demagnetization of permanent magnet occurs at high temperature. The numerical simulation of fluid flow field and temperature field was carried out with the method of computational fluid dynamics (CFD) and ANSYS-Fluent software. And then we improved the structure of permanent magnet governor on the basis of analysis of the flow field and temperature distribution. The result indicates that the flow of improved structure increases, and temperature drops 46.°C, fulfilling the desired temperature range of permanent magnet can bear, which provides a theory basis for the design of ventilation-cooling structure of permanent magnet governor.
Experimental Research on Hard and Crack-Free Electrodeposited Chromium Coatings
Authors: Li Xue Lei , Liu Xiao Hang , Tian Hao Bin , Yuan Wen Jing
Published: October 2014

In order to eliminate cracks in the chromium coating, a novel method named flexible extrusion assisted chromium electroplating was proposed. The bright and crack-free chromium coatings were electrodeposited by using the perturbation and extrusion of hard and insulating particles. The prepared deposits were characterized by scanning electron microscope (SEM) and three-dimensional topography. The testing results showed that the surface was very smooth and there was no micro cracks in the coating. Micro hardness of the electrodeposited layer was also tested. It was confirmed that the chromium coating electrodeposited with rotating cathode in hard particles had high micro hardness as to 850HV and the micro hardness could be controlled by the process parameters. The rule of the micro hardness was concluded by analyzing current density and rotating speed. In addition the results of salt spray test and electrochemical polarization curve showed that the coating deposited by new method had higher corrosion resistance than that by traditional method.
The Comprehensive Assessment of Power Quality Based on Attribute Recognition Theory and AHP Algorithm
Authors: Peng Sui , Liu Zhi Wei
Published: October 2014

It is the direction of the future development of the electricity market to assess power quality and determine the tariff in accordance with the power quality. This paper established attribute recognition theoretical model, and determined the weight of each evaluation index of power quality based on Analytic Hierarchy Process (AHP) algorithm, and proposed the comprehensive assessment of power quality based on attribute recognition theory and AHP algorithm. Even considering various impact factors of steady state and transient state, this algorithm is able to avoid the subjectivity affecting the evaluation results for power assessment index weight, ensuring the fairness of the assessment. The results show that this algorithm is much more effective than the fuzzy comprehensive evaluation method in differentiating the level of power quality, and thus to ensure the fairness of evaluation results.
Unit Commitment of Distribution Main Transformers Considering PV Penetration
Authors: Chen Chao Shun , Hsieh Shih Chieh , Hsu Cheng Ting , Lin Chia Hung , Tsai Cheng Ta
Published: October 2014

This paper presents the unit commitment of main transformers to meet the service reliability criterion in distribution substations by considering the growth of photovoltaic (PV) installation with the probabilistic power generation in the service area. The historical data of solar irradiation over one year period are collected to derive the annual duration curve of solar energy to derive the probabilistic distribution of PV power generation. All PV power systems of each study year are considered as an equivalent virtual main transformer with probabilistic capacity. By the integration of probabilistic PV power generation model and the risk model of main transformer outage, the loss of load expectation (LOLE) of the distribution substation is analyzed according to the annual growth of customer loading and PV penetration level. When the LOLE is less than the service reliability criterion, one new unit of main transformer has to be added to improve system reliability.
The Design of the Household Photovoltaic Power-Supply System with Intelligent Expansion Capacity Based on STM32
Authors: Yan Gui Lin , Ma Jun , Xie Hai Wu , Lu Jia Ting , Cheng Fu Yuan
Published: October 2014

Qinghai-Tibet region has abundant solar energy resources. The photovoltaic power generation can be utilized to solve the electricity-supply problem in most parts of the region having no access to electricity. General household photovoltaic power can solve the basic problem of electrical lighting, but in some cases where large-power electricity supply is needed, such power cannot be utilized, which means its scope of application is limited. We employ the STM32 intelligent microprocessor controlling method to collect parameters and features of storage batteries and photovoltaic modules. The system can automatically expand capacity and output power, which is very practical in making general household photovoltaic power more widely applied.
Research on HEV Drive System Based on Composite Electric Power
Authors: Zhang Hao Ming , Wang Ying Hai , Peh Lian Soon
Published: October 2014

Abstract. Hybrid electric vehicle adopt hybrid electric power, can reduce the waster emission and energy consumption, which can solve the present problem of environmental pollution and energy consume. New type HEV based on composite electric power is proposed.To improve the performance of the system, Halbach PMSM is used instead of traditional PMSM, experimental results show its merits.
High Resolution Sequence Stratigraphy Characteristics and Distribution of Donghe Sandstone in Qunkuqiake Region in Tarim Basin
Authors: Cheng Mu Wei
Published: October 2014

Qunkuqiake Region is an important exploration block in Tarim Basin. Donghe Sandstone is the main oil and gas target stratum. In order to reveal the rules of migration of the sand body and predict the favorable reservoir accurately, two high-frequency cycles are identified in Donghe Sandstone each of which consists of rising hemicycle and descending hemicycle, the sedimentary characteristics are analysed within the sequence stratigraphic framework and the barrier bar subfacies are identified beginning with the sedimentary characteristics of glutenite through the study of drilling stratigraphic section using drilling data, well logging data and cores data. This paper has disclosed the transition of the sedimentary environment from barrier-free coast system to barrier coast system during the period from rising hemicycle to descending hemicycle and the planar distribution of sedimentary facies of different high frequency sequence of Donghe Sandstone.
Study on the Impact of Lateral Pressure on Jointed Rock Mass with DDARF Method
Authors: Zhao Cheng Long , Zhu Wei Shen , Li Shu Cai , Ma Hai Ping
Published: October 2014

The discontinuous deformation analysis for rock failure (DDARF) method is adopted to simulate the biaxial compression test under different lateral pressure conditions. Then this paper analyzes the impact of the lateral pressure on the specimen failure rules. The simulation results show that the lateral pressure has obvious inhibiting effect on the expansion of wing cracks, crack initiation stress, and specimen peak strength.Keywords: Multi-joint specimen; DDARF method; Lateral pressure; Biaxial compression test simulation
Verticality Determining Methodology for the Reconstruction of a Building Shell – Analytical Solution
Authors: Kovanič Ľudovít
Published: October 2014

The paper presents surveying and processing procedures used at a reconstruction of a circumferential jacket of a 13-storey building, as well as possibilities of numeric and graphic presentation of measurement results. The suitability of specific used procedures depends mainly on the dimensions of the building and its space zoning. Usually, the space polar method is commonly used for surveying of mediating parameters. Analytic processing is considered to be the most suitable method of evaluation of measured point deviations from the vertical plane, or from the plane in general position, mainly because of its smartness, rapidity and universality.
Effect of Mica Content in Stone Powder of Manufactured Sand on Performance of Cement Mortar
Authors: Xing Jie Quan , Zhan Shu Lin , Li Xin Yu
Published: October 2014

This paper studies the influence on compressive strength, freezing resistance and microstructure of cement mortar with different content of mica in stone powder, in the tests, manufactured sand with high content of mica and natural river sand were mixed with different proportion, and the content of stone powder was the same in mixed sand. Experiment results indicate that, with the increasing of mica content in stone powder, 28d and 60d compressive strength of cement mortar decreases obvious, mass loss rate and strength loss rate with 50 freeze-thaw cycles increase a little. Microstructure of cement mortar with higher content of mica is not compactly by SEM, the internal defects of cement hardened pastes could be increased because of the flake mica which surface is smooth, and it will cause the spread of micro crack.
Agricultural Robot Localization Based on Camera Ranging
Authors: Wang Ke , Ge Zhen Yang , Yu Ying Jie , Wu Wang Wang
Published: October 2014

In this paper, a camera ranging method for agricultural robot localization in arable farming is described. Three calibration objects in different directions in the field are set. The distances between the robot are calculated, and the calibration objects are used the camera to obtain the robot position. The benchmarking procedure in Matlab includes image binarization of the calibration object and the curve fitting method was used to establish the relationship between the pixels number of the calibration object and the actual distance. The verification results show that the relative error of ranging is less than 1.5%. Furthermore, the camera ranging method for agricultural robot localization is proved to be easy and feasible.
Augmented-Reality-Based Mechanical Fault Diagnosis Method
Authors: Jing Hong Lei , Nie Jing , Zhang Nian
Published: October 2014

With the rapid development of modern society, the industrial mechanized production reached unprecedented climax in this era. Science and technology advance increasingly, modern equipment from structure to function tends to be complex and improved, and gradually achieve a high degree of automation. However, due to the inevitable factors such as wear and tear, abrasion and chemicals infection, machinery equipment will inevitably appear unforeseen fault, causing the machine to detract from the performance, or even causing serious economic losses. Therefore, mechanical fault diagnosis can reduce equipment accident rate and ensure the long-term stable operation of the device. And applying the augmented reality to machinery fault diagnosis method research can maximize the efficiency of mechanical fault diagnosis and equipment efficiency. This article explores the prospects for the development of mechanical fault diagnosis methods based on the theoretical basis and application value of augmented reality.
Base of Control and Transmission Technology
Authors: Xing Hong Mei , Sun Lei , Zeng Yan
Published: October 2014

IP/DVB technology is the product of combining IP with cable TV DVB network technology effectively. Using these two technologies in the video-on-demand system can take advantages of control and data transmission, which can make full use of bandwidth, and make real-time transmission more stable.
Design of Boiler Control System Model Based on Fuzzy Control
Authors: Wang Xin , Pan He
Published: October 2014

this Paper Aim at the nonlinear object of industrial boiler with instability Parameter and difficult building math model, combining fuzzy control theory, an adaptive controller built with fuzzy neural to control industrial boiler is proposed. On based of analyzing coal-fired boiler inflammation system technological process and work process, the coal boiler inflammation system control scheme is designed. Then, this paper introduced the fundamental theory base and design means of fuzzy controller, and gives fundamental design process of it. At last, after the fundamental use tool kit below the Visual Basic is introduced, using it has a simulation study on the coal boiler inflammation system and gives conclusion.
Isotropic Design Method of Suspension System of Dithered RLG Strapdown Inertial Measurement Unit
Authors: Li Geng , Wei Guo , Xie Yuan Pin , Zhang Peng Fei , Yu Xu Dong , Long Xing Wu
Published: October 2014

The dithered ring laser gyro (DRLG) strapdown inertial navigation system (SINS) is widely used in many applications, including military and commercial systems for the advantages such as high accuracy, wide dynamic range and bandwidth, outstanding scale factor stability over temperature, compactness and lower cost. However, the dither motion introduced to eliminate the lock-in error which is the inherent phenomena in the ring laser gyro also brought the adverse disturbance to the inertial measurement unit (IMU). Meanwhile, the installation environment of the SINS may also bring undesirable vibration and shock. For these reasons, a feasible and reliable suspension system is required to provide decoupling of the translational and rotational vibrations of the inertial sensor assembly (ISA) and attenuating the outside vibration and shock. Based on this, the isotropic design method of suspension system of DRLG strapdown IMU is proposed in this paper. The method consists four principles: 1) the input axes of sensors should be placed symmetrically along the ISA symmetric axes which are also the principle inertial axes; 2) the mass center of ISA is also the center of the geometric structure; 3) the elastic center of the suspension system is overlapped on the mass center by placing mounting isolators in the ISA structure corner in the isotropic manner and 4) the first mode frequency of ISA structure should be twice or more higher than the maxim mechanical dither frequency of DRLG triad. Following these principles, a design practice is implemented. The simulation and the experiment result show that the IMU using isotropic design method is proved to be feasible and reliable even in the extreme temperature ambiance.
Multi-Sensor N-P Criterion Fusion Detection Based on Weighting by SNR
Authors: Yang Bo Fan , Wang Rui , Wang Gang , Zhao Li
Published: October 2014

Aiming at signal detection of radar target, concerning about on the basis of the influence of SNR on detection probability when false alarm probability is given based on N-P criterion, a kind of multi-sensor fusion detection based on SNR is put forward. It can improve system’s detection probability under the condition of required false alarm probability in the detection of low SNR signal. The simulation results show that the detection performance is significantly increased, no matter fusion detection system is composed of same sensors working in the same working point or different sensors.
Prediction on Combat Effectiveness of Amphibious Assault Vehicles Based on Supporting-Vector Regression
Authors: Qiu Mian Hao , Cong Hua , Jia Hua Peng
Published: October 2014

In this paper, a predictive model has been established for the combat effectiveness of amphibious assault vehicles by the method of supporting-vector regression. It has a good fitting result after trained with the samples. Then this model is used to predict the combat effectiveness of the sample under evaluation. The SVR approach can convert the practical questions into the high-dimensional feature space through non-linear transfer, and construct the linear decision functions in the space to realize the original non-linear decision functions. This approach has its significance for the prediction of combat effectiveness of AAVs.
Simulation Research of Direct Torque Control for Marine Permanent Magnet Synchronous Motor
Authors: Zhan Ke Yi , Gao Hai Bo , Chi Fei Fei
Published: October 2014

The permanent magnet synchronous motors are more and more popular in marine electric propulsion field. Aiming to solve the problem of large torque ripple in traditional DTC system, this paper introduces the principle of space vector modulation and builds the electric propulsion system models based on direct torque control for permanent magnet synchronous motor in Simulink. Typical working condition experiments are designed to contrast the performances between traditional DTC and SVM-DTC. Simulation result proves that SVM-DTC can reduce ripples of both electromagnetic torque and stator flux effectively with the same dynamic response character as traditional DTC system.
Simulation Study on ESP Fuzzy Control Based on Road Automatic Identification
Authors: Fu Yan Rong , Ren Li Xian , Wang Guo Ye , Hou Hai Jing
Published: October 2014

ESP (Electronic Stability Program) is a kind of active safety device which can comprehensively improve the brake, drive and high speed performance of the automobile. Mastering the key technologies of ESP control system plays an important role in improving the performance of ESP. Vehicle dynamic model and engine model with 9 degrees of freedom of one passenger car were established based on vehicle and tire force analysis. The ESP fuzzy control model based on slip ratio control was established. The optimal slip ratio under different pavements was confirmed by using road recognition method. ESP fuzzy control was realized under MATLAB/Simulink environment. And through the split road simulation prove the validity of the road recognition algorithm, and the effectiveness of the fuzzy control strategy. The simulation and the debugging results indicate that the ESP fuzzy control strategy based on road automatic identification works well, and obviously improves automobile stability under critical situations. And all of these make a good foundation for the further research and development for the ESP integrated control system.