bluuebunny/crossref_metadata_2025 huggingface dataset:
Prediction of Cyclic Residual Stress Relaxation by Modeling Approach
Authors: Ben Moussa Naoufel , Sidhom Naziha , Sidhom Habib , Braham Chedly
Published: August 2014

A new method for prediction of residual stress cyclic relaxation has been developed and implemented in the finite element software Abaqus. The calculated profiles were validated by experimental measurements using X-ray diffraction method. This validated approach is afterward used to investigate the effect of loading path and initial residual stress characteristics on the kinetics of relaxation and the stabilized profile for both cyclic softening and cyclic hardening materials.
Effects of Fatigue on the Integrity of a Friction Stir Welded Lap Joint Containing Residual Stresses
Authors: Bach Michael , Merati Ali , Gharghouri Michael
Published: August 2014

This research uses a non-destructive method of neutron diffraction to measure the tri-axial residual stresses in a friction stir welded aerospace fuselage component: a stringer-to-skin lap joint. Two different specimens were examined. Fatigue testing was performed on both specimens to determine their fatigue lives. Effects of the different components of residual stresses were examines and related to fatigue performance. A combination of fractography, hardness testing, and residual stress measurement was used to predict areas of high probability of structural failure in the friction stir welded lap joints.
On Welding Residual Stresses Near Fatigue Crack Tips
Authors: Hensel Jonas , Nitschke-Pagel Thomas , Dilger Klaus
Published: August 2014

Residual stresses in welded joints are supposed to change during fatigue loading. Residual stresses can be, depending on the loading conditions, relaxed as well as build up and they can be affected by fatigue crack growth. Furthermore residual stresses are supposed to affect the fatigue strength of welded steel structures. However, tensile residual stresses decrease and compressive residual stresses increase the fatigue strength. This residual stress effect on the fatigue strength is mostly explained with different crack propagation rates.The presented work is on welded longitudinal stiffeners, made of unalloyed fine grained carbon steel, with different fatigue crack lengths in which residual stresses have been determined. The residual stress measurement was conducted using Neutron diffraction. The results of the diffraction measurement show that the initial tensile residual stresses near the weld toe are, caused by phase transformation at low temperatures, below the base materials yield strength. Tensile residual stresses in the order of the yield strength can be found below the materials surface. These areas of high residual stresses are moving with the propagating crack tip through the specimen during fatigue loading.
Microstructure, Stress and Texture in Sputter Deposited TiN Thin Films: Effect of Substrate Bias
Authors: Chakraborty Jay , Maity Tias , Kumar Kishor , Mukherjee S.
Published: August 2014

Titanium nitride thin films deposited by reactive dc magnetron sputtering under various substrate bias voltages have been investigated by X-ray diffraction. TiN thin films exhibits lattice parameter anisotropy for all bias voltages. Preferential entrapment of argon atoms in TiN lattice has been identified as the major cause of lattice parameter anisotropy. Bombardment of argon ions during film growth has produced stacking faults on {111} planes of TiN crystal. Stacking fault probability increases with increasing substrate bias voltages. X-ray diffraction line profile analysis indicates strain anisotropy in TiN thin films. Diffraction stress analysis byd-sin2ψmethod reveals pronounced curvature in the plot of inter-planar spacing (d) (or corresponding lattice parameter (a)) versussin2ψ. Direction dependent elastic grain interaction has been considered as possible source of the observed anisotropic line broadening.
Phase Transformation in Ultra-Thin Films
Authors: Chakraborty Jay
Published: August 2014

Thickness dependent structural phase transformation in thin polycrystalline metal films has been reviewed. Various effects of film thickness reduction on film microstructure have been identified. Film thickness dependent structural phase transformation has been treated thermodynamically taking polycrystalline titanium (Ti) thin film as model example.
Structure-Mechanical Property Relationship in Hot-Dip Galvanized S355k2+N Steel Plates
Authors: Ajimi Wiem Toumi , Retraint Delphine , Montay Guillaume
Published: August 2014

The aim of this study is the characterization of hot-dip galvanized S355K2+N steel plates used as components for engineering civil structures. Two thin zinc coatings with a thickness of 145+/-14 μm and 329+/-23 μm, were developed at the surface of the plates. Several experimental techniques were performed to study the microstructure, the chemical composition at the surface of the galvanized plates. The residual stress field was also evaluated in the coatings and the top surface of the plates using the incremental hole drilling method, in the rolling and the transverse directions. The results show the presence of tensile stresses and compressive stresses respectively in the coating and the substrate.
Determination of Stress Fields and Identification of Thermomechanical Parameters in a Thermally Grown Oxide under Thermal Cycling Loadings, Using Advanced Models
Authors: Tao Zhao Jun , Rakotovao Felaniaina , Grosseau-Poussard Jean Luc , Panicaud Benoit
Published: August 2014

The presence of residual stresses in thermal oxide layers has been recognized for a long time. In the present work, the mechanical fields for chromium oxide are investigated. An extended model is established to take into account the effects of temperature and thermal cycling for the calculation of oxide stress. Numerical results are given in order to predict the influence of different parameters, especially the dependence of some material parameters with temperature. This enables to make comparison with experimental results.
Microstresses in ZrO2 Layer and Lateral Cracking
Authors: Berdin Clotilde , Tang Yan , Pascal Serge
Published: August 2014

Micromechanical simulations of polycrystalline zirconia using the finite element method are performed in order to obtain the stresses at the grain scale of a zirconium oxide layer, since these microstresses are important for damage prediction of the layer and then oxidation kinetics. The crystallographic texture of the layer of monoclinic zirconia is taken into account. The results show that even under high compressive macroscopic stresses, the microstresses can contribute to lateral cracking promoted by the presence of tetragonal zirconia.
Load Forecasting of Zhejiang Province Based on Combined Optimization Methods
Authors: Xu Qian , Lan Zhou , Huang Jin Hua , Qin Hong Hao , Xu Xiao Min
Published: August 2014

On the basis of analysis in Zhejiang, this paper uses the trend fitting method, the quadratic exponential smoothing model and multiple linear regression and grey GM (1, 1) portfolio model to forecast electricity consumption in 2012-2020 in Zhejiang, and compare the various methods of prediction accuracy.
Research on Improved Immune Genetic Algorithm and its Application in Integration Planning
Authors: Jiang Wu Xue , Liu Min Xia
Published: August 2014

In order to improve the efficiency of intelligence algorithm in integration planning and to avoid “premature” phenomenon, an improved genetic algorithm strategy-a method based on fitness density and scaling is proposed in the paper. It applies a new encoding way of integration planning. The two examples of simulation experiments show that the genetic improvement strategy could significantly reduce solving algebra and prevent “premature” phenomenon.
The BPG Property of Photonic Crystal for TE Mode with Sector Pillars as Scatterers
Authors: Wan Yong , Ge Xiao Hui , Yang Yang , Gao Jing , Cui Ying
Published: August 2014

Scatterer is the basic element of photonic crystal. With operating frequency f =1THz (wavelength λ =300μm), we proposed sector as scatterer and analyzed the influence of parameters to photonic bandgap (BPG) for the structures of pillars in air, such as the center radius of sector r, width of sector d, and central angle of the sector θ. For two-dimensional hexagonal arrays, the absolute BPG width and the relative BPG width were demonstrated by the three parameters in TE mode, respectively.
An Improved Cluster Key Management Algorithm for Wireless Sensor Networks
Authors: Zhao Qi Sheng , Liu Xiao Ming , Zhu Hui Sheng
Published: August 2014

The information security of wireless sensor networks is one of hot issues on the current research; this paper combines threshold key scheme with the management of security key sharing and group agreement and proposes dynamic key management scheme through clustering level key matrix of authentication mechanism from the cluster to node. The network is divided into different clusters, and the cluster head conducts the key authentication exchange and updates the key management with threshold key schemes, with no need of third authentication center, reduces the computing and communication costs, and promotes communication.
The Fabrication of Nanometer- and Micrometer-Sized Silica Hollow Spheres
Authors: Liu Hui , Yan Fang , Fang Hong Jie , Zhang Li Dong
Published: August 2014

Using melamine formaldehyde (MF) microspheres as hard templates and silica colloid as shell precursors, core-shell structures of silica-coated MF microspheres were prepared by the electrostatic adsorption process or spray drying inspired in-situ coating and drying process. Furthermore, nanometer- and micrometer-sized silica hollow spheres were obtained by calcinations in air. The influence of preparation methods and ratio of silica colloid to MF microspheres on the composition, the morphology and size of the core-shell intermediates and the hollow spheres were studied with FTIR, SEM and TEM techniques.
The Investigation of Microstructure Silicon NH3 Gas Sensors Based on Polyaniline Nano-Thin Films
Authors: Xu Xiao Ying , Tai Hui Ling , Liu Chun Hua , Xie Guang Zhong , Du Xiao Song
Published: August 2014

Polyaniline (PANI) nano-thin films were deposited on a novel microstructure silicon (MSS) substrate via in-situ self-assembly approach for NH3gas-sensing. The MSS was prepared by alkaline etching process, and gold interdigital electrodes were formed on the MSS surface by vacuum evaporation. The characterization of the MSS and PANI nanothin film were investigated by scanning electron microscope (SEM) and UV-Vis absorption spectroscopy. SEM images showed that the MSS exhibited an orderly uniform hemisphere array structure, and the MSS surface was covered by a compact PANI thin film which consists of PANI nanoparticles and PANI nanofibers. The gas-sensing properties of the sensor were examined at room temperature. The results revealed that the sensor exhibited a good response and recovery characteristics to NH3.
Research on LabSQL Database Technology in the Virtual Laboratory Design
Authors: Jiang Wu Xue , Ye Guang Zai , Liu Min Xia
Published: August 2014

Aiming to improve the efficiency of access to remote database in the virtual laboratory design, the paper analyzes features and shortness of the LabView to have access to remote database and elaborates methods and programming model for LabSQL to implement database access and proposes the integrated application strategy of the LabSQL toolkit and ADO technology. Combined with a network virtual laboratory’s application development, the paper provides access steps based on LabSQL database and virtual laboratory’s design process and it is proved that the program is easy to implement and easy to use.
Research on Public Health Information Resource Service System Based on Cloud Computing
Authors: Yang Wen Jing , Zhao Hai Yan , Li Zhi Yuan
Published: August 2014

The development of network technology to integrate network health information resources, regulate commerce, associations and other web services and form a diversified public health network information services has a significant meaning for public health network information guidance. This paper proposed the concept of public health information resources service system based on the cloud computing technology and described the location of public health information resources cloud services and cloud deployment model. And we also build an overall framework of information resource cloud service system in which the characteristics and processes of information resource layer, service layer, user layer and evaluation layer were designed.
Research on Smart Healthcare Platform Construction Based on Cloud Computing
Authors: Zhang Min , Zhang Ren , Liu Cheng Sheng
Published: August 2014

This paper proposes a service-oriented architecture of smart healthcare information service platform with three main services based on concept of cloud computing. In addition to ensuring traditional hospital management and IT-based clinical treatment, this smart healthcare platform also support abundant medical services, such as remote healthcare, chronic illness management, and rural healthcare centers. Rural healthcare centers can largely benefit from cloud based models in terms of cost reduction and resource utilization. It will not only reduce the development cost but improve the maintainability and adoption of evolving technologies.
Research on the Development of a Tourism Information System Based on Geographic Information
Authors: Zhu Lin
Published: August 2014

This thesis researches on the process of the tourism at home and abroad, and selects Com GIS as the combination of tourism industry and informationization. Based on the tourist market, this thesis takes the task of developing the tourism information system, based on the analysis and the design of the GIS characteristic, the development structure, the system database, the system function, takes the Com GIS software Super Map Objects as platform, takes SQL Server 2000 as the database, has realized system's integration with the Visual Basic, realized multimedia query, buffer analysis, overlay analysis, the optimal path and other functions. This thesis has conducted the exploring research about development of tourism information system, has certain reference to the tourism information construction, and provides comprehensively, accurate traveling information service for tourist, also provides the powerful technical support for tourist resource's scientific management and decision-making.
Research on the Fault Diagnosis for Computer Network Based on VXI
Authors: Xiao Wei Wei
Published: August 2014

This paper analyses status and requirement of electronic equipment test. Auto test system’s hardware based on VXI is presented. Test diagnosis network architecture is put forward. The advantages of C/S and B/S mode are analyzed. The computer network is combined with virtual instrument ideally. Based on existing VXI test system and combined with computer network technology, fault diagnosis network based on hybrid structure of C/S and B/S is developed by Lab Windows/CVI. It realizes instrument’s linking each, share resource and the improvement of the utilizing rate of instruments.
Research on the Realization of Network Accounting in Financial Information Times
Authors: Mao Yi Qi , Peng Juan
Published: August 2014

Along with the arrival of network financial information times, network accounting emerges. Accounting means have undergone through handwork accounting and computer to replace the changes of handwork accounting, database and network. Maximum share of accounting information resource can be realized by network accounting, which accelerates the accounting affairs handing, making the centralized management easier and providing with endurance to the full development for the electronic business.
Researches on JVMTI-Based Security Enhancement Techniques for Java Software
Authors: Wen Ze Peng , Li Gong Liang , Tao Yi Zheng , Yang Guang Hong
Published: August 2014

With the fast development of information technology, various software systems have been widely applied to production lines and office work. A lot of corporate data thus are stored and processed by these systems each day. Therefore, the security of the software systems is closely related to the data security and the core competitiveness of an enterprise. At present, Java becomes one of the most important programming languages of the enterprise application systems. Against its hidden risks that Trojans and Backdoors are easily implanted through decompilation, the author of this paper proposes a security enhancement technique based on JVMTI for Java software to effectively prevent the malicious users’ decompilation through encrypting the bytecode files, thereby enhancing the security of the software.
The Network Security Analysis of Linux Operating System
Authors: Cui Yong Jun , Zhang Yong Hua
Published: August 2014

This article argues that in terms of security flaws Linux operating system. On this basis, it focuses on improving Linux security in two ways, one is the use and management of Linux from a security point of view, the second is upgrading the system, and improves their security thoroughly.
The Study of Brush Plating Process on Polyamide Engineering Plastics Surface
Authors: Wang Jian Ren , Zhang Yu Feng , Gao Zhi Jun
Published: August 2014

The oxidation polymerization simplifies the brush plating process, by which a conductive polymer film is formed on Polyamide Engineering Plastics surface before direct brush plating. In the article, analysis is made on the various process parameters and the influence of the brush plating solution composition on deposition rate . And discussion has been done on the polyamide engineering plastics brush plating process , which includes three phases, namely preprocess, catalysis and brush-plating. the demand on brush-plating process is as following: The workpiece is connected to the positive; the working voltage is 14 V; the movement speed of the brush is from 0.04 m/s to 0.06 m/s; the temperature of brush-plating solution should remains at 80 °C; PH value is between 4.3 to 4.5.The test consequence shows that there are many advantages of brush-plating nickel-phosphorus alloy on the polyamide engineering plastics surface such as simple operating , brush-plating layer with high strength, no stripping and no cracks,and high abrasive resistance, all of which have greatly extended the life of polyamide engineering plastics service.
The Research on the Construction of Ancient Books Digital Resources
Authors: Wu Ma Jia , Wu Shuang Lin
Published: August 2014

This article describes the current situation of China's digital library resources digitization, describes a method of digital resources, pointed out the prblems in the process of building a digital resource issues and put forward several suggestions to the digital resource construction.
A Methodology for the Emulation of Context-Free Grammar
Authors: Hu Chuan Zhi , Cheng Shi
Published: August 2014

Many cryptographers would agree that, had it not been for Boolean logic, the visualization of neural networks might never have occurred. Given the current status of optimal methodologies, steganographers particularly desire the exploration of gigabit switches, which embodies the important principles of robotics. In this work, we consider how virtual machines can be applied to the deployment of the partition table.
Development of AutoCAD Graphic Database Management System Based on Component Technology
Authors: Zhang Ying , Shi Xin
Published: August 2014

In order to query and manage the graphic files efficiently, and improve the graphic management system in the enterprises, based on the research of dwg、dxf formats, using VC++6.0 language, the graphic title bar information database was created in the Access. With the ODBC interface connected to the graphic database, the preview and query of the graphic database were realized with ActiveX technology. By designing and programming good interactive interface, graphics could be modified and translated conveniently as well as updating the database etc. Simultaneously, by setting identification, the security management of the graphic database was realized. Ultimately, the delivery of enterprises was highly improved.
Correlation Analysis of PM2.5 and NO2 Concentrations in City Ambient Air of Changsha
Authors: Dai Chun Hao , Luo Yue Ping , Luo Si , Qin Pu Feng , Peng Hui
Published: August 2014

The Changsha city of Hunan province was selected as study area to monitor the concentrations of PM2.5 and NO2 in ambient air automatically. The correlation relationship between PM2.5 and NO2 was also analyzed. Results showed that the concentrations of PM2.5 and NO2 changed significantly with seasons, and they manifested the same change trend, as winter > autumn > spring > concentration in summer. In a day, the lowest concentration of NO2 generally appeared in the afternoon. However, the present time of lowest and the peak values of PM2.5 concentration were uncertain. The highest concentration of NO2 was in the business district, and the distribution of PM2.5 concentration did not have an obviously regional. Furthermore, the PM2.5 and NO2 concentration changed in positive correlation, and these two were easy to produce pollution overlay. On the whole, the main seasons to control PM2.5 and NO2 were winter and autumn.
Study on the Relationship between Soil Nutrient and Yield Analysis Based on Bivariate Correlation between
Authors: Cao Li Ying , Zhang Xiao Xian , Zhao Yue Ling , Chen Gui Fen
Published: August 2014

Soil nutrient level is an important factor affecting the yield of corn, to find out the effect of nitrogen, phosphorus, potassium on maize yield, analysis of bivariate correlation in SPSS based on the relationship between nutrient content, nitrogen, phosphorus, potassium in the plot and each plot yield directly was analyzed, the experimental results show that it doesn't matter: P, K and the yield of corn, corn yield and nitrogen related.
Determination of Vitamin C Content in Brown Rice by Capillary Zone Electrophoresis
Authors: Liu Hai Xing , Fan Quan Hua , Zhang Xiao Ping , Xu Yang , Wang Lin Tong , Cao Hui
Published: August 2014

In this paper, using capillary zone electrophoresis method determined Vitamin C content in brown rice. 20 mmol/L borax solution and 20% acetonitrile concentration, 20kV voltage, 254 nm UV detection wavelength was chosen for electrophoretic analysis condition. Measured vitamin C content in brown rice was 0.043 mg/g (RSD=7.1%) (n=7).
The Research of Reservoir Forming Characteristics of Tight Sand Gas
Authors: Hui Guan Zhou
Published: August 2014

Tight sand gas is one of unconventional gas. Under the condition of the gradual depletion of conventional resources, unconventional resource is gradually paid more attention. Tight sand gas is divided into two types: pre-exiting deep gas and subsequent tight sand gas on the foundation of current research. Different types of accumulations having various characteristics, so describing and contrasting reservoir forming characteristics of two types of tight sand gas, analyze reservoir forming rules, can guide the future work of tight sand gas exploration.
Synthesis of a Polysiloxane with High Reaction Activity
Authors: Dong Сhao Hong , Lu Zhou , Zhu Ping , Wang Lei
Published: August 2014

A novel building block in organic synthesis, poly (4-iodobutoxylmethylsiloxane)(PIBMS) with high reaction activity was prepared by poly (hydromethylsiloxane)(PHMS), methyl iodide and tetrahydrofuran (THF) in the presence of a catalytic amount of PdCl2. The structure of PIBMS was characterized by the FT-IR and NMR spectra. The reaction conditions were optimized.
The Efficient Water Resources Strategy
Authors: Jia Zhao
Published: August 2014

Relevant bodies of the United Nations in Vienna on March 22, World Water Day, said that if people did not change their way to consume, in this case, 2.5 billion people would face water shortage by 2025 which is of no doubt, and about 5 billion people would live in an area that water has difficulty in self-sufficiency. In this paper, China is selected to be an example. As for models, there are 2 models given in this paper, large-scale system and linear programming. Based on large-scale system model, water resources are divided in the largest 10 drainage basins of China as 10 units which comprise the first level. Then, the use of water is adopted for 4 kinds defined as 4 units which make up the second level. We use polynomial fitting algorithm to estimate 4 kinds of average water consumption in 2015, 2020 and 2025.Then we use linear programming skill to calculate the best 4 kinds of water consumption distribution of 10 drainage basins in 2015, 2020 and 2025 respectively. Comparison and analysis between the best distribution and the estimated average value made in the first step, enables the construction of a preliminary water strategy from 2013 to 2025, which illustrates storage, movement, de-salinization and conservation of water specifically in this paper. According to Analytic Hierarchy Process (AHP), a brief evaluation of models is presented from three angles.
At last, in a word, the result is given roughly that the government should increase the distribution of industry water resources appropriately and decreases or keep the same level with the rest of water resources allocation.
A Medical Decision Support System Based on Structured Injection Orders
Authors: Kang Lan Ying , Lo Yu Sheng , Liu Chien Tsai
Published: August 2014

Medication Errors, means the errors which occur during the whole process from prescribing by doctors, filling prescriptions by dispensers, and medicating by nursing staff or taking medicine by patients. It includes negligence and judgments errors in the whole process. The main reasons are lack of communications in medical groups, unclearly handing over between shifts, blurred orders, and different recognition to abbreviation...etc. Even so, concerning injections and IV are still with oral orders which leads nursing staff using the wrong medicine, dosage and dilution concentrations...etc. easily. Therefore, this study is going to build the database of injection orders and structure IV orders to avoid not able to screen unstructured written orders leading into negligence of nursing staff due to insufficient communications or blurred orders, reduce medication negligence, promote the qualities of medical care. Furthermore, it is able to keep missed accounts off , save time on overlapped manual input, forward efficiency .
l-Stepholidine Blocks Methamphetamine-Induced Locomotor Sensitization in Mice
Authors: Ma Bao Miao , Yue Kai , Xing Jun Qiao , Gong Xiao Kang , Ru Qin , Chen Lin , Xiong Qi , Tian Xiang , Liu Lu , Gan Yong Qing , Wang Dai Song , Jin Guo Zhang , Li Chao Ying
Published: August 2014

Repeating administration of methamphetamine (METH) can result in locomotor sensitization, a progressive increase in their psychomotor activating effects. l-Stepholidine (l-SPD), an alkaloid extract of the Chinese herb Stephania intermedia, is the first compound known to exhibit mixed dopamine D1 receptor agonist/D2 antagonist properties and is a potential medication for the treatment of drug addiction. Therefore, the effects of l-SPD on the hyperactivity, development and expression of METH-induced locomotor sensitization were investigated. The results indicated that l-SPD dose-dependently inhibited hyperlocomotion induced by acute METH and prevented the sensitized motor behavior induced by chronic METH administration. l-SPD likely acts as a D1 partial agonist and a D2 antagonist to produce its in vivo effects and may be a promising agent for treatment of METH addiction.
Efficient Crowdsourcing via Bayes Quality Control
Authors: Su Hao , Liao Shan
Published: August 2014

Crowdsourcing has become an important tool to aggregate the wisdom of the crowd in this Internet age. A central problem in building an online crowdsourcing system is to determine the appropriate number of workers to assign tasks to. We study this problem by formulating a Bayes Net framework and introduce a quantity derived from posterior distribution to measure the convergence of crowd opinions. Using this quantity, our algorithm could stop soliciting opinions from more workers if the distribution of opinions is unlikely to change in future predictions. We empirically demonstrate the effectiveness of the designed strategy by building a challenging fine-grained image annotation task on Amazon Mechanical Turk. Experiment results show that our approach not only saves annotation cost but also guarantees high annotation quality.
Evaluation Research of Pig Farmers’ Behaviors of Veterinary Drug Usage Based on Factor Analysis
Authors: Sun Ruo Yu , Zhou Jing , He Meng Lin
Published: August 2014

Pig farmers’ behaviors of veterinary drug usage will affect the quality safety of pork products. Based on factor analysis and the field research of pig farmers, this paper makes the evaluation research on pig farmers’ usage behaviors of veterinary drugs with real evidences. And the results show that: the indexes of pig farmers’ behaviors of veterinary drug usage are a bit low, and the main factor that restricts pig farmers’ behaviors of veterinary drug usage is that pig farmers lack knowledge of the usage of veterinary drugs. Through the behaviors such as establishing the guidance on drug usage and keeping medication administration records, pig farmers’ behaviors of veterinary drug usage can be standardized to some extent.
The Application Research of Basic Surveying and Mapping Product in Urban Management
Authors: Yuan Hui
Published: August 2014

Since the traditional urban management style has been unable to cope with contemporary challenges of the growing number of urban problems, the implementation of urban information management and urban meticulous management are important measure to improve the performance of urban management, and it is an effective way for the city to improve the production and living environment and the urban quality. Exploring of the role of basic surveying and mapping production in urban management is helpful to improve the city’s planning, construction, management and service levels. This paper summarizes the uses of basic surveying and mapping production in the management of city.
Total Factor Productivity and Convergence of Port Logistics with Tianjin Port
Authors: Wang Li Ping , Yin Meng Meng , Dong Bi Xi
Published: August 2014

Port logistics productivity reflects the productivity and competitiveness of a country or region port logistics industry. The research took Malmquist Productivity Index as a method, and explored the reasons of Tianjin Port Logistics TFP changes by analyzing the TFP growth trends and its structural changes during 2002 to 2011. The results showed that the overall productivity is growing, especially in the period 2009-2010 that is increased by 27.4%. However, changes of productivity had some volatility, primarily due to the impact of technological change.
Evaluation of College Coach Capacity in USA
Authors: Wan Fang Xing , Hu Dong , Tian Jing
Published: August 2014

To manage operation mechanism of sports coaching teams, the mathematical models are introduced based on the coach evaluation system in USA. Using datum of college coaches and economy in USA from 1913 to 2013, we select top 3 college coaches in basketball, football and baseball field respectively from nearly 4,000 coaches by the AHP model and the Input-Output model. The conclusion is that economic factors should be considered in evaluating coach capacity.
Research on the Loss and Motivation of Teachers in the Civilian-Run Colleges and Universities
Authors: Zhou Lin
Published: August 2014

The paper introduces the conception of civilian-run colleges and civilian-run colleges' teacher and teachers' turnover, analyses the reasons from external society factor, civilian-run colleges' human resources management factor and teacher' individual factor, then puts forward some measures of stabilizing teachers. Since teachers' turnover is the foremost factor in human resources management of civilian-run colleges, when analyzing reasons it involved every aspect of human resources management, so the paper put emphases on effective measures to control teachers' turnover, such as establishing an effective recruitment policy, a reasonable training system and perfect compensation system and vocation career programming, etc.
Choose the Best Coach Based on the Theory of Grey System
Authors: Zhao Jia
Published: August 2014

In order to select “the best all time college coach” across both genders and all possible sports, we establish a multi-hierarchy evaluation model based on the theory of grey system. Without affecting the reliability of the results, we analyze the distribution of every index to determine the initial screening standard, narrow target range and simplify the problem. Then, we use the theory of grey system to evaluate coaches. We first normalize all indexes to make them comparable. Second, we determine a set of the best indexes as the reference vector and obtain the correlation coefficient matrix. On the issue of the weight of all indexes, we introduce the concept of dynamic weight matrix by considering the distribution and relative size of them. After that, we obtain the value of the final evaluation from the correlation coefficient matrix and dynamic weight matrix .As for the influence of time on the evaluation, we regroup the data of coaches according to the time section for five years, which results in some statistical variables, and then we draw the trend graph of them. To sum up, the number of excellent coaches of every sport is increasing over time, but the average value and standard deviation of winning percentage is decreasing. The model has the adaptability on different sports by comparison. And because the data of women coaches is insufficient, the influence of genders on the evaluation needs to be researched further.
Research on Countermeasures Based on Enterprise Practice of the Higher Vocational Teachers
Authors: Yang Xu Guang
Published: August 2014

The enterprise practice of teachers in higher vocational colleges is adapt to the needs of the development of higher vocational education. It is an important approach to build “the double teacher” construction. Through researching the data obtained from some higher vocational college teachers' enterprise practice, the paper has done some analysis on the current overall status of the teachers in enterprise practice. We have carried on some explorations about the existing problems in three ways, such as the colleges, teachers and enterprise.
A New Molecularly Imprinted Polymer Prepared by Surface Imprinting Technique for Selective Adsorption towards Rhodamine B
Authors: Xuan Guang Shan , Sun Qin Yong , Zheng Xiao
Published: August 2014

A new molecularly imprinted polymers (Rhodamine B-KH-570/SiO2,MIPS) with high performance for recognizing Rhodamine B was prepared by adopting the surface molecular imprinting technique with silica-gel modified by KH-570 as a carrier material, acrylamide as the functional monomer and N,N-methylene-bis-acrylamide (MBA) as the crosslinker.The static adsorption experiments indicated that MIPS had significantly higher adsorption capacity for Rhodamine B than its non-imprinted polymers (NIPS). Dynamic binding study showed that the MIPS had good site accessibility and mass transport for Rhodamine B.Scatchard analysis revealed that two classes of binding sites were formed in MIPS with dissociation constants of 0.086mol/L and 0.0076 mol/L, and the maximum apparent binding capacity was 96.00μmol/g and 50.07 μmol/g, respectively.The selectivity coefficients and separation factors of MIPS for Rhodamine B in relation to competition species Rhodamine123 were 131.51 and 3.86 respectively, which suggested that MIPS had high recognition selectivity and binding affinity for the template molecule Rhodamine B.
Cloning and Expression of a Novel Protease with Fibrinolytic Activity from Arenicola cristata
Authors: Zhao Chun Ling , Yu Wen Jing , Ju Ji Yu
Published: August 2014

cDNA of a novel protease, designated as AFEI, was cloned from digestive tract of Arenicola cristata by RACE. The cDNA of AFEIcomprised 897bp and an open reading frame that encoded polypeptides of 264 amino acid residues. AFEIshowed similarity to serine protease family and contained the conserved catalytic amino acid residues. The gene encoding the active form of AFEIwas expressed in E.coli and the purified recombinant protein could dissolve an artificial fibrin plate with plasminogen, which indicated the recombinant protein might be a plasminogen activator for thrombosis therapy.
Computational Modeling of the Patient-Specific Femoral Head before and after the Treatment
Authors: Mei Yu Qian , Lu Chao , He Hai Jun , Chen Wei Heng , Chen Duan Duan
Published: August 2014

In femoral head necrosis, the cortical shell of the femoral head collapses and buckles into the cancellous bone. The purpose of this study is to explore the biomechanical characteristics of the femoral head and the necrosis region by comparing the results before and after drug treatment. In this paper, we study two patient cases with femoral head necrosis disease and establish the corresponding computational three-dimensional models. The results show that the deformation of the femur decreases slightly after the treatment, the equivalent stress distributes more evenly, and the stress magnitude reduces. The results also reveal that the volume of the necrosis in the femoral head decreases after treatment, the overall necrosis presents relatively lower equivalent stress, and the area with the relatively high equivalent stress is smaller comparing to the necrosis in femoral head before treatment.
Effects of Self-Assembling Peptide RADA16-І Hydrogel on Neural Differentiation of Bone Marrow Mesenchymal Stem Cells
Authors: Liao Yan Sheng , Deng Li , Gao Xiao Qing , Yang Chao Xian
Published: August 2014

Objective: To establish composite culture system of rat bone marrow mesenchymal stem cells (BMSCs) and self-assembling peptide hydrogel RADA16-І, and to investigate the effect of RADA16-І hydrogel on neural differentiation of BMSCs. Methods: BMSCs were isolated, cultivated and labeled with green fluorescent protein (GFP), then they were inoculated on glass coverslips or in RADA16-І solution to form control group and RADA16-І group respectively. The morphological changes of BMSCs induced by neural induction medium were observed, and GFAP, NeuN and Map-2 expressions of BMSCs in each group were detected with immunofluorescence. Results: The induced BMSCs presented neuron-like change, and the rates of GFAP and NF-200 positive cells in RADA16-І group were higher than that in control group (P < 0.05). Conclusion: Self-assembling peptide RADA16-І hydrogel can promote neural differentiation of BMSCs, and which may be used as scaffold material on BMSCs transplantation for treatment of nervous system diseases.
Optimum the Fermentation Condition to Produce the Polysaccharide of Hericium erinaceus with Tofu Whey
Authors: Zhang Zuo Fa , Lv Guo Ying , Jiang Xue , Fan Lei Fa
Published: August 2014

The present study was to evaluate the effects of certain nutrients and environmental parameters on growth and production of polysaccharide of Hericium erinaceus with tofu whey. The effect of different carbon and nitrogen sources, temperature, pH and incubation period on the production of polysaccharide in flask cultures by H. erinaceus was investigated. Glucose and potato extract were found to be the most suitable carbon and nitrogen source, respectively. Optimum production of polysaccharide required glucose in the cultivation medium with a concentration of 8.0 g/L. On the other hand, the highest production of polysaccharide was obtained in a cultivation medium containing 12.0 g/L of potato extract. Furthermore, the incubation temperature at 27 °C, pH 5.5, rotation rate 180 and seven days of the incubation were found to be the optimum for maximum production of polysaccharide of H. erinaceus.
PLK1 Promotes Invasion of Esophageal Squamous Cell Carcinoma Cells through Inducing Epithelial-Mesenchymal Transition
Authors: Ju Ji Yu , Yu Wen Jing , Zhao Chun Ling
Published: August 2014

PLK1 has been implicated in tumorigenesis and progression. The role of PLK1 in carcinogenesis has not been fully understood. In our study, we established PLK1-overexpressed stable transfectants in esophageal squamous cell carcinoma (ESCC) cells. Ectopic overexpression of PLK1 enhanced invasiveness of ESCC cells. Compared with the empty vector-transfected cells, PLK overexpression dramatically decreased expression of E-cadherin and increased expression of Vimentin in ESCC cells. Furthermore, Vimentin was also significantly increased at mRNA level in PLK overexpressed ESCC cells. These data suggest that PLK1 promotes invasion of ESCC cells by inducing EMT.
The Nature of Silanol Groups on the Surfaces of Silica, Modified Silica and Some Silica Based Materials
Authors: Christy Alfred A.
Published: August 2014

Silica gel, a material that is produced from the condensation polymerisation of silicic acid, contains surface silanol groups formed during the condensation. The silanol groups on the surface are mostly of free and vicinal silanol groups. These silanol groups can be modified in several different ways. Thermal treatment and hydrothermal treatment can be carried out to alter the concentration proportions between free and hydrogen bonded silanol groups on the surface. They can also be chemically treated with suitable chlorosilanes to modify the silanol groups into polar or non polar materials that can be used in separation science.This article explores the chemical nature of silanol groups on the surfaces of different materials. Near infrared reflectance spectroscopy was used as the instrumental technique in this study. The silanol groups classifications were made by analyzing the near infrared spectra obtained during the adsorption of water molecules. Absorption of the combination frequencies of water molecules in the region 5500- 5000 cm-1were used in characterizing the silanol groups on the surfaces. Second derivative technique was employed in the resolution and detailed analysis of these absorptions.The study reveals that the materials contain free, vicinal and gem silanol groups. Silica gel contains free and vicinal silanol groups, thermally treated silica gel contains fewer vicinal silanol groups compared to the base silica gel, and hydrothermally treated silica gel contains higher concentrations of vicinal silanol groups compared to the base silica gel. Furthermore, the chemically modified silica gel contains vicinal or geminal silanol groups depending on the type of functionality introduced.
Structure and Characteristics of Pineapple Leaf Fibers Obtained from Pineapple Leaves
Authors: Dong Chao Hong , Lv Zhou , Zhang Liang , Shen Hong Jie , Li Na Na , Zhu Ping
Published: August 2014

Pineapple leaf fiber is a nature hemp leaf fiber extracted from pineapple leaves. Its structural characteristics was investigated by means of scanning electron microscope (SEM), X-ray diffraction (XRD), Differential scanning calorimetry (DSC) and thermogravimetric analysis (TG). The results showed that the percent crystallinity and preferred orientation of crystallites in pineapple fibers were 60.82% and 98.5%, respectively. The average fracture strength of the pineapple leaf fiber is high and the linear density is low, so there is a high fiber spinnability and yarn quality. The present study is expected to provide essential information for the preparation and processing of pineapple leaf fibers.
Study of Multi-b-Value Diffusion-Weighted Imaging at 3.0 T for Measuring Renal Function of Patients with Chronic Renal Failure
Authors: Xue Jun Lai , Zhang Meng Chao , Zhang Mao Hua , Tong Dong , Qiang Wu
Published: August 2014

To investigate the relationship between apparent diffusion coefficient (ADC) values measured by diffusion-weighted imaging (DWI) on a 3.0T MR unit and glomerular filtration rate (GFR) determined by renal imaging using Nuclear Medicine 99 Tcm-DTPA. 3.0T MRI DWI and 99 Tcm-DTPA renal imaging were simultaneously performed in 30 patients with chronic renal failure. The b values set for DWI imaging were 0, 200, 400, 600, 800 and 1000 s/mm2 and the ADC values of renal cortex were measured. 60 kidneys from the patients were classified into three groups according to the measurements of GFR: mildly impaired renal function, moderately impaired renal function and severely impaired renal function. ADC values of the three groups were compared to determine whether there existed statistic difference and the correlation between ADC values and GFR was also measured. Statistical difference was found in ADC values of the three groups and a positive correlation was identified between ADC values and GFR (r = 0.623). Multi-b-value diffusion-weighted MR imaging at 3.0 T can be used to assess renal filtration function.Abbreviation used: DWI, diffusion-weighted imaging; ADC, apparent diffusion coefficient; GFR, glomerular filtration rate; NEX, number of excitation.
Study on Compatibility of Self-Assembly Peptide RADA16-I, PLGA and PS Scafolds and BMSCs
Authors: Wang Lan , Liao Yan Sheng , Yang Chao Xian
Published: August 2014

Objective: To observe the ability of self-assembly peptide RADA16-І hydrogel, poly (lactic-co-glycolic acid) (PLGA) and polystyrene (PS) scaffolds in supporting the adherent growth of rat bone marrow-derived mesenchymal stem cells (BMSCs). Methods: The rat BMSCs were isolated and purified by density gradient centrifugation and adherent culture. The 3rd passage of BMSCs were used to induced into adipocytes and osteoblasts by inductive medium in vitro, and labeled by infection of adenovirus carried with green fluorescent protein. BMSCs were inoculated on RADA16-І hydrogel, PLGA and PS scaffolds to form cell-scaffold complex. Adhesion rates of BMSCs on different scaffolds were investigated, and cell proliferation was tested by MTT method. Results: Cultured BMSCs presented high uniformity and had multilineage differentiation potential. Adhesion rates of BMSCs on RADA16-І hydrogel, PLGA and PS scaffolds were 92.51%, 78.36% and 59.79% respectively. BMSCs cultured on RADA16-І hydrogel showed higher ability of proliferation than those cultured on PLGA and PS scaffolds after incubation for 7 days (P < 0.05). Conclusion: RADA16-І hydrogel is more suitable than PLGA and PS for attachment and growth of BMSCs.
Establishment and Evaluation of Determination of Cinnamaldehyde in Baoyuanqingxue Granules by HPLC
Authors: Wu Qiang , Wang Chang Hong , Wang Pu , Liu Xiang Rong
Published: August 2014

To examine the extraction method and chromatographic conditions that affect the determination of cinnamaldehyde in Baoyuanqingxue granules and make clinical evaluation about the determination of cinnamaldehyde.Ultrasonic methanol extraction was used before the detemination of cinnamaldehyde in Baoyuanqingxue granules. High Performance Liquid chromatography (HPLC) method was applied to detect samples. The SB-C18 column (Agilent, ZORBAX, 4.6×150mm, 5μm) was adopted, the mobile phase was acetonitrile-water (35:65) at the flow rate of 1.00mL•min-1 with DAD detection wavelength at 290nm, the volume of injection was 20μL and the column temperature was 30°C. The resolution between cinnamaldehyde and other peaks was good. The calibration curve was linear in the range of 0.5035~50.35μg•mL-1(r=0.99976). The average recovery (n=6) of cinnamaldehyde was 99.2% with RSD of 0.5%. The HPLC-DAD method to detect the content of cinnamaldehyde in Baoyuanqingxue granules is simple and accurate. It can be used for quality control of cinnamaldehyde in Baoyuanqingxue granules.