bluuebunny/crossref_metadata_2025 huggingface dataset:
Access and Optimization of OSD Based on FPGA
Authors: Gui Dan , Yu Zong Jie
Published: September 2014

Based on jumping in ten digits, optimization of OSD module in FPGA storage and read. the Chinese character OSD information superimposed on the video, take a transparent overlay mode. OSD information is stored in the FPGA mostly, and communicates with the SRAM, through the OSD information into the SRAM, the program reads the character dot matrix information from the SRAM to improve the function of OSD and beautify the superposition effect.
Simulation and Correction of the Slice Profile Based on SLR Theory in a 0.35 T Permanent MRI System
Authors: Li Yu Yang , Huang Yu Li , Shi Zhong Qiang
Published: September 2014

To locate the imaging slice, the hydrogen protons within the selected slice are excited by the coaction of radio-frequency pulse (RF pulse) and slice-selection gradient during the process of magnetic resonance imaging (MRI). However, the absolute consistency of the time between the RF transmitting system and gradient system can’t be guaranteed in an actual magnetic resonance system, which makes the slice profile not ideal enough. Imperfect slice profile will lead to poor imaging quality. In this paper, Shinnar-Le Roux (SLR) theory is used to simulate the slice profile with different relative delays between RF and slice-selection gradient to solve this problem. By matching the actual slice profile with the simulation results, the relative delay is measured in an actual 0.35T permanent magnet MRI system. The practicability of the method is verified for the improvement of image quality after applying the measured delay to correct the actual MRI system.
A Novel Multi-Timescales Layered Intention Recognition Method
Authors: Chen Zhi Gang , Wu Xiao Feng
Published: September 2014

Facing asymmetric threats in a network centric environment, modern naval command and control systems confront increasingly demanding challenges in data fusion. It is very important to efficiently and promptly predict the enemy’s or adversary tactical intention from level 2 data fusion. In this paper, a layered intention model is proposed to represent the uncertain elements relating to adversarial intention and their uncertain relations in naval battlefield domain. The main ideal of this paper is to develop a hierarchical Bayesian network based on situation-specific Bayesian network (SSBN) and dynamic Bayesian network (DBN) that can be adapted to cope with the multi-timescales layered intention recognition problem.
Point Cloud Registrational Computing Based on Hadoop
Authors: Liu Song , Xie Xiao Yao
Published: September 2014

For the problem of huge computation and requiring high computing resource in point cloud registration, according to the theory of parallel computing, the algorithm of point cloud registration base on MapReduce is designed. Through building a Hadoop cluster consisted by average PCs, four examples have been tested. The experiment results show that point cloud registration algorithm based on MapReduce can register point cloud data with high accuracy.
Nonlocal TV-L1 Inpainting Model and its Augmented Lagrangian Algorithm
Authors: Yin Xiang Feng , Duan Jin Ming , Pan Zhen Kuan , Wei Wei Bo , Wang Guo Dong
Published: September 2014

Nonlocal differential operators have been extensively applied to variational models for image restoration due to its texture-preserving capability. In this paper, we propose a nonlocal TV (total variation)-L1 model for texture image inpainting, which, technically, combines nonlocal operators for regularization term and L1 norm for data term. The former is used to regularize texture and the latter to preserve contrast of images. In addition, we develop augmented Lagrangian algorithm for proposed model by introducing nonlocal auxiliary variable and Lagrangian multiplier. Finally, extensive experiments on synthetic and real texture images are presented to validate the effectiveness and efficiency of our proposed model and algorithm.
A Beam Domain Selection Method Based on the Conventional Beam Forming
Authors: Jiang Li Zhi
Published: September 2014

Beam forming technology is an important content in the study of underwater target positioning, can directly use beam forming technology to identify the target direction, but can be by beam forming of target signal enhancement, and then to deal with the enhanced signal. No matter how to apply, beam forming technique can be regarded as a weighted sum of signal delay processing, its purpose is to form a beam and the scan to a specific direction. Based on uniform linear array as the example, this paper first of all, the simulation analysis of conventional beam forming technology direction scanning accuracy and array element spacing, number of array element, the relationship between the signal frequency; Then by analyzing grid scanning beam spatial distribution of power spectrum and the quantitative relationship between linear arrays, studying a selection method is suitable for the engineering application of fast beam domain, high precision and fast direction to estimate.
Study on Characteristics of Rayleigh Waves in Media Containing Shallow Rectangular Cavities
Authors: Si Yong Feng , Wang Yong
Published: September 2014

Numerical simulations of Rayleigh wave with a source on the free surface are achieved by using FEM(finite element method). Artificial viscous boundary conditions are used to weaken boundary reflections. Modeling results are proved by comparison between analytic and numerical solutions in homogeneous half-space and layered media. Surface wave field of homogeneous half-space with rectangular cavities are modeled and analyzed. The results show that the velocity of converted wave above cavity is less than which in homogeneous media and energy is concentrated obviously in the area when the depth of cavity is relatively smaller than surface wave length. The cavity can be located by characteristics in time domain and frequency domain of surface wave. Dispersion characteristics of waves above cavity are mainly influenced by the top depth of the cavity instead of bottom depth and consistent with Lamb wave of slab with corresponding height and same media.
Research on the Parameter Matching of Power Device of Hybrid Sanitation Vehicle
Authors: Si Chuan Sheng
Published: September 2014

In this paper, I introduced the working principle and drive type of hybrid cars, and parallel hybrid system was the driver type of hybrid sanitation vehicle. Combined with vehicle parameters and power performance indicators of the original model, I matched the appropriate engine, electric motor, battery and design the corresponding transmission.
A Comparative Study of Two Data Reduction Methods for Steel Classification Based on LIBS
Authors: Kong Hai Yang , Sun Lan Xiang , Hu Jing Tao , Xin Yong , Cong Zhi Bo
Published: September 2014

Spectra of 27 steel samples were acquired by Laser-Induced Breakdown Spectroscopy (LIBS) for steel classification. Two methods were used to reduce dimensions: the first is to select characteristic lines of elements contained in the samples manually and the second is to do principal component analysis (PCA) of original spectra. Then the data after reducing dimensions was used as the input of artificial neural networks (ANN) to classify steel samples. The results show that, the better result can be achieved by selecting peak lines manually, but this solution needs much priori knowledge and wastes much time. The principal components (PCs) of original spectra were utilized as the input of artificial neural networks can also attain a good result nevertheless and this method can be developed into an automatic solution without any priori knowledge.
Application of Lead Sealing Made of Aluminum and Aluminum Alloy Material
Authors: Feng Ling , Yan Hui , Wu Hua
Published: September 2014

aluminum and aluminum alloy can be squeezed as Leal sealing body measurement instrument. Aluminum alloy has the advantages of high strength, corrosion resistance and high temperature, traceability, rich surface information, Leal sealing has good anti-counterfeiting and anti-pry.
Research about the Effect of Ultrasonic Impact on the Mechanical Property of Welded Cruciform Joint of P355NL1 Steel
Authors: He Bo Lin , Yu Ying Xia , Lei Si Yong , Shi Jian Ping
Published: September 2014

Surface treatment was carried out on the welded cruciform joint of P355NL1 steel by using the HJ-II-type ultrasonic impact machine. The ultrasonic impact current is 1.5A, the impact amplitude is 20 microns and ultrasonic impacting time is 5min. Tensile test was carried out for both treated specimen and un-treated specimen. The fracture observed with the scanning electron microscope of 6360LA type. The experimental results show that although the compressive residual stress can be obtained in the surface of weld toe area, and the grain size in the surface of welded cruciform joint can be refined, but the mechanical property of the welded cruciform joint of P355NL1 steel can not be improved through the ultrasonic impact treatment. The main reason is that the ultrasonic impact layer is only 70um, it is to thin to compared to the thickness of the specimen.
A Bioactive Material from Plants Rich in Anthocyanins
Authors: Jiao Qian Chuan , Kong Xiu Rong , Sun Guang Ren , Du Feng Guo
Published: September 2014

To exploit a bioactive material as components of functional products, juices from purple perilla; purple potato and blueberry were abstracted and concentrated. These concentrated juices were diluted to optimize the composition by evalustion of lavor. A bioactive material with 30% concentrated juice from purple perilla,50% from blueberry and 20% from purple potato, which contains 3.72% anthocyanin and shows antioxidant activity. This biomaterial can be use in processing functional products which have the functions of plant anthocyanin.
Study on the Dynamic Mechanical Property of High Strength Steel 18NiC250
Authors: Shao Xiao Jun , Liu Peng Ke , Zeng Zhi Yin , Guo Wei Guo
Published: September 2014

In this paper, dynamic mechanical property tests under different tempreture and strain rate of high strength steel 18NiC250 are conducted by means of Hopkinson pressure bar technique. The results of tests show 18NiC250 steel is not only very sensitive on strain rate, but also sensitive to temperature. The rate relative constitutive model of this steel is obtained and well predicts dynamic mechanical property after yielded.
Microstructure and Wear Resistance of AlFeCuCoNiCrTi1.5 High Entropy Alloy Coating on AZ91D Magnesium Alloys by Laser Cladding
Authors: Huang Kai Jin , Wang Yu Yue , Lin Xin
Published: September 2014

To improve the wear properties of AZ91D magnesium alloys, a AlFeCuCoNiCrTi1.5high entropy alloy (HEA) coating was fabricated on AZ91D magnesium alloys by laser cladding using mixed powders of Al, Fe, Cu, Co, Ni, Cr, and Ti. The microstructure of the HEA coating was characterized by OM, SEM, and XRD. The wear resistance of the HEA coating was evaluated under dry sliding wear test condition at room temperature. The results show that the HEA coating mainly consists of a simple BCC solid solution phase. The HEA coating exhibits excellent wear resistance. The main wear mechanisms of the HEA coating and the AZ91D substrate were different, the former dominated by oxidative abrasive wear and the latter suffered from both adhesive and abrasive wear.
Assembly Process Planning Based on Tri-Dimensional Visual Platform
Authors: Sun Jia Kun , Yang Chao Ying , Qiu Hui Hui
Published: September 2014

As the precision and quality requirements for assembly process is very high, with the features of security or irreversibility, assembly has become an key link of restricting the improvement of product quality and productivity for some industries such as automotive, aerospace and other industries. In this paper, based on the construction of the tri-dimensional visual platform, assembly process design process is studied, on the basis of tri-dimensional process model, the assembly process is simulated and analyzed in real-time, the assembly path and assembly interference check is implemented, thus shorten the planning and assembly debugging cycle greatly, improve the quality and efficiency of the process design.
The Research for Assembling Double Circuit Steel Tube Tower with New inside Pulling Wire
Authors: Ju Yan Zhong , Zhou Hang , Fan Wei
Published: September 2014

Double Circuit Steel Tube Tower has a large size structural and a heavy weight of components, so the construction of tower becomes more difficult. This article uses the Midas software to simulate the Process of Inside Pulling Wire for Double Circuit Steel Tube Tower erection in windy weather and no windy weather, Researching the influence of the new lifting system and the original lifting system on the whole of lifting system. Through the stress analysis and simulation formajor rigging, we can know which lifting ways can be used when the horizontal displacement of the derrick has or has not strict restrictions, or the lifting weight has been restricted when the Wind load is too strong. New lifting system can lift very heavy tower material and has little affect by windy weather, especially suite for assembling large size structural and heavy weight of components tower.
Characterization of the Expanded Plasma Jet Generated at Reduced Chamber Pressure
Authors: Yang De Ming , Tian Bo Han
Published: September 2014

Very low pressure plasma spraying has been attracted attention due to special properties of the expanded plasma jet which may probably deposit specific and unique structure coatings, such as columnar structure coatings. The forming of the coatings is affected by plasma generating and working conditions. These operating parameters such as arc power, plasma gas flow rate, and chamber pressure have influences on pressure, enthalpy and temperature of plasma jet. In this work, an enthalpy probe is applied to measure the enthalpy of argon-hydrogen plasma jet generated at chamber pressure of 3000 Pa and 50Pa. The results showed that the temperature of plasma jet reached to 11000 K at 25 mm from nozzle exit, and then dropped slowly to 7000 K at 400 mm.
Study on the Advantages and Role of Soft Decoration Materials in Shaping the Indoor Environment Art Atmosphere
Authors: Mao Wen Shi
Published: September 2014

Modern decorative materials constantly updated and developed, and many of them are limited tube used for a time, and soon are replaced or eliminated. Soft adornment material can shape and express art atmosphere of indoor, having huge advantages and functions. In this paper, we research and analyze the soft adornment material from different point of view, and making catch-all category on the function of indoor soft adornment material that will be used in art design environmental. Soft adornment material has a great influence on the indoor space, such as people's sense of feel, smell, etc. Also from the angle of the color and design, as well as the texture analysis to analyze the utilization of soft decoration materials in interior design, and emphasized on low carbon green theme, highlighting the new idea of interior design, and also excusing the advantages of the new material.
Effects of Nozzle Distance on Micro Quality in 3D Printing
Authors: Yu Zhao Hui , Wang Huan Mei , Chen Guang Xue
Published: September 2014

The quality of forming model was influenced by the nozzle distance, during three dimensional printing. UV inkjet printer was used to complete 3D printing; the micro quality of printings under different nozzle distances were studied, and the influences of line attributes and surface attributes in micro quality caused by different nozzle distances were analyzed and discussed, in order to get the best micro quality through the nozzle distance setting. The results showed that the nozzle distance within a certain range, the influence on line attributes is greater than the influence on surface attributes caused by nozzle distance; when the nozzle distance is between 1.5-2.5mm, the micro quality of printed image is best.
Business Ontology Building in Cloud Manufacturing
Authors: Xie Zhong
Published: September 2014

Among the existing research findings, when the combination structure of manufacturing cloud service combination (MCSC) is formed, the actual situation of the service capability in cloud pool has not been objectively taken into account. It would result in service match failure. Aiming at a solution to this problem, this paper puts forward a view of forming a combination structure for MCSC based on business ontology, and focuses on how to build the business ontology. A case of USB flash disk customization is presented to verify the view.
Satellite Oilfield in High Water-Cut Stage New Composite Displacement System Research
Authors: Jiang Hai Rui , Zhuo Xing Jia
Published: September 2014

Satellite oilfield is in high water cut production period, many reservoirs flooded, or great changes after long-term water injection pore structure, heterogeneity is more serious. These strata to high-dose slug of deep processing, plugging agent dosage, only cheap oil displacement system has use value. Therefore, urgent need to develop a economic and effective system of new type displacement, especially for high permeability, high permeability and deep processing of large hole formation. A grade sodium soil clay particle displacement agent used with HJ - 708 can enhance the blocking effect, and can prevent or reduce the particle migration. This article by viscosimetry screening reagents with clay particles oil displacement agent and the added amount and the kinds of grade A sodium plus the amount of soil to optimize indoor experiment and A series of oil displacement system for optimization and evaluation. High pressure model of indoor experiments show that the new type of oil displacement system blocking rate reached more than 90%, on the basis of the original recovery efficiency increased by seven percent.
Analysis and Compensation Strategy of Non-Linear Error in Five-Axis CNC Machining
Authors: Liu Hong Jun , Zhang Ai Guo , Zhao Ji Bin , Shang Jin , Liu Jun
Published: September 2014

This paper presents a new strategy of analysis and compensation of non-linear error. Non-linear error is an important source of machining error in multi-axis numerical controlled machining and it is unavoidable. In view of tool positions optimization in five-axis CNC machining of complex surface, this paper presents a strategy for non-linear error compensation in five-axis machining: Firstly, non-linear error caused by the change of tool axis vector is analyzed and the non-linear error model is established, in order to get the maximum non-linear error of interpolation segment; Then, the tool position that meets the machining accuracy is obtained; Finally, Simulation and analysis of the model show that the proposed method is effective and greatly improves the geometric accuracy.
NC Milling Machining Friction Forging Die Based on UG NX4
Authors: Feng Xian Zhang , Li Jing , Wang Zhen , Jiang Zhi Qiang , Cheng Jun Wei , Chen Liang Ji , Chen Liu Guang
Published: September 2014

The curved surface of friction forging mould parts is a smooth surface which consist of circular arc camber and slope surface. Using UG as a platform, we can Carry on the processing programming and tool path simulation for the friction forging mould parts. According to the same parts we can use different cutting ways and methods to processing programming. By comparing the different cutting ways,we can obtained the optimal tool path and the ways to solve round knife phenomenon. In this way, we can Complete the programming of the forging mould parts and improve the correctness of the programming efficiency. The program's establishment method and thought Can act as a reference for the parts which has the same characteristics.
Analysis of the Results of Bending Bearing of Damaged Old Timber Beams Repaired and Strengthened with CFRP
Authors: Xiong Shu Zhang , Zhang Xun Zhong , Jia Bin
Published: September 2014

Combined with wooden beam deflection limit is reached when the load is often less than the destruction of the limit load of engineering actual situation, based on the cross section of equivalent substitution principle, set up a wooden beam CFRP reinforcement design calculation formula of calculation results, the wooden beam reinforcement and reconstruction for the future of different load cases, the design of the CFRP amount needed.
A Study on the Highway Alignment Method
Authors: You Yun Wei
Published: September 2014

By applying the model in a case, two methods of linear and curved alignment are analyzed and compared. Besides, the main existing problems and the solutions to solve them are studied. The results show that curved alignment method has obvious advantages in highway design, interchange design, and other complex terrain conditions. With a variety of computer-aided design software line appears, curved alignment method will be widely used.
Improved Method of High Voltage Switchgear Temperature Prediction Based on WNN
Authors: Xue Wen
Published: September 2014

Based on WNN, an improved model of High Voltage Switchgear temperature prediction is built. The model is optimized with hard threshold de-noising with wavelet package analysis, made an ultra-short term prediction loosely combines Elman neural network. However, the characteristics of the original signal are reserved and the noise interference is mostly eliminated. The experiment results show the processed sample as input one improves the prediction accuracy of Elman Network and reduces the root-mean-square error. And the prediction values show good coincidence to the measured ones that improves the reliability of early warning.
Experimental Investigation of Compression of Overlength Bored Piles Shaft in Loess Area
Authors: Xie Xing , Wang Dong Hong , Zhang Ji Wen
Published: September 2014

Calculation and discussion have been carried about relation between compression of bored piles shaft and settlement of pile top, and valuation of ξ as composition coefficient adopted in standard method and distribution pattern of compression settlement characteristic by static load test on overlength bored piles in loess area as well as test and analysis on load-settlement characteristic of pile top together with strain test data on piles shaft.
The Applications of Laminated Rubber Bearing on the Seismic Control of the Continuous Beam
Authors: Sun Hang , Gao Xiu Yun , Ding Ji Wu
Published: September 2014

Aiming at the phenomenon that the fixed piers of the continuous beams have been damaged during the earthquakes, In this paper the seismic responses are carried on based on a four-span continuous beam, pot rubber bearing and laminated rubber bearing are selected, and corresponding finite element model is built. The results indicate that the distributions of the longitude seismic forces between the piers are more reasonable for the latter bearing, especially under the long period and near-fault seismic excitations. The possiblity of adopting the laminated rubber bearing on the seismic control on the continuous beam are discussed, and the results can be referrd by the same bridges during designing.
Application of Earthquake Response Spectrum in the Ultra-High-Rise Building Design
Authors: Zhou Chang Xian , Zheng Shao Peng
Published: September 2014

The design of ground motion, including the response spectrum design and seismic wave design, is one of the important parameters for aseismic design of building structures. Consequently, the reasonable design of ground motion has a critical influence on the aseismic design of building structures. Given the importance of high-rise buildings, site survey data are generally in great detail. In this case, making full use of the data and reasonably designing response spectra and seismic design are more appropriate to the characteristics of specific sites of high-rise buildings than determining seismic input based on a simplified method and limited data.
A Multi-Axis Synchronization Control Approach Based on Adjacent Cross-Coupling Strategy
Authors: Wang Ji Dai , Liang Cun Xian , Sun Ai Qin
Published: September 2014

The high precision synchronized multi-axis control has become one of the key issues in modern manufacturing industry. As synchronized multi-axis control systems are nonlinear, time-variable and easily affected by disturbances, it is difficult to determine reasonable coupling control law and large amount of on-line calculation just through the existing synchronous control strategies for multi-axis system. In this paper the development status of multi-axis control synchronization control strategy is analyzed and the synchronization control algorithm is proposed based on the adjacent coupling error. The parameters of cross-coupled control are set on the basis of BP neural network control theory, which can not only reduce the tracking error, but also eliminate the synchronization error between adjacent axes. The synchronization performance of this approach is good with simple configuration. With this approach, the synchronization performance is good with simple configuration. Simulation results of the multi-axis synchronous system show that this method can effectively obtain the synchronization with a quick convergence. In the end, the multi-axis cross-coupled control approach based on BP neural networks is applied to a three-axis synchronization control system and its effectiveness is discussed.
Application of Cable Erection Method to Construction of Concrete Arch Bridge in Alpine and High Elevation Area
Authors: Wang Yuan , Zhang Dong Ming
Published: September 2014

1# bridge traffic engineering of LiangHeKou hydropower station is located in ganzi region in sichuan province. The altitude of main construction areas lies above the 2700m, perennial mean temperature ranges from-4.9 – 7.9°C,extreme low temperature reach-42.9°C,the temperature difference between day and night,which may adversely affect the execution of the precast concrete and cable erection. Based on the fully and deeply analyse and optimal approaches, We solved several key engineering challenges in precast arch box construction, and also provided valuable experiences for similar projects.
Three Adaptabilities of the Traditional Vernacular Architecture of the Han Nationality in Lingnan
Authors: Tang Xiao Xiang
Published: September 2014

Architecture means the living environment by man and for man. The development of the traditional vernacular architecture of the Han nationality in Lingnan implies the principles of adaptability. The contents of adaptability can be divided into three aspects: natural adaptability, social adaptability and human adaptability. The natural adaptability of the Han's vernacular architecture in Lingnan means buildings should adapt themselves to natural circumstances like climate and geographical conditions; its social adaptability means buildings should suit the needs of economy, politics, religions, customs and other social respects; and its human adaptability means buildings should be suited to human conditions such as emotion, temperament, aspiration and so on. All the developments and changes of the Han's vernacular architecture in Lingnan are based on the natural adaptability, pushed forward by the social adaptability and always to the human adaptability.
The Effect of Roundness on the Buckling Strength for the Submerged Pressure Hull
Authors: Hsu Ching Yu , Liang Cho Chung , Teng Tso Liang , Chang Chia Wei
Published: September 2014

The pressure hull is the most important part of resisting pressure structures of the structural systems. The submerged pressure hull is subjected to very high hydrostatic pressure or underwater explosion load, which creates large compressive stress resultants. Due to this the pressure hull is susceptible to buckling. Buckling phenomena analysis is of greater importance in the design of the submerged pressure hulls. For the pressure hulls with local out-of-roundness, the operating depth will be greatly influenced and thus decreasing capability to resist pressure loading. Thus, this work employs the ABAQUS finite element program to analyze the effect of roundness on the buckling strength for the cylinder pressure hull. Sex kinds of out-of-roundness rateφ, 0%, 1%, 3%, 5%, 10% and 15%, were studied in this study. The bulking depth and collapse depth for the cylinder pressure hull with different out-of-roundness rate were calculated. The Analysis models and results of this study contribute to efforts to design pressure hull structures.
Review of Research on Interlayer SAGD in Domestic and Foreign
Authors: Luo Peng
Published: September 2014

China is rich in resources of heavy oil.But some oilfield heavy oil reservoir in the development process will encounter interlining, affecting the development effect. In the process of SAGD to carry out the basic research of reservoir interlayer is helpful to identify the basic attributes of reservoir in the interlayer. The interlayer of SAGD development process is helpful to find the study focus and direction of development. Steam chamber breakthrough research achievements of interlining research abroad, summarizes the steam chamber breakthrough interlining, provide technical support for the oil field SAGD breakthrough interlining, it is of great significance for promoting SAGD efficient development.
Stability and Large Deformation of 2-D Laminate Circular Thin Curved Beams
Authors: Lin Chiu Wen , Tseng Han Ming , Teng Tso Liang
Published: September 2014

In this research, both un-deformed or Lagrangian state and deformed or Eulerian state are used to derive for stability analysis and large deformation. By choosing the deformed radius of curvature and deformed angle of tangent slope as parameters, the governing equations of laminated curved beam under static loading are transformed into a set of equations in terms of angle of tangent slope. All the quantities of axial force, shear force, radial and tangential displacements of circular thin curved beam are expressed as functions of angle of tangent slope by using laminate theory. The buckling load and large deformation analytical solutions of circular thin curved beam under a pair of forces are presented as well.
Research on Different Heat Transfer Characteristics of the Dirt on the Pipe
Authors: Bai Li , Liu Tan
Published: September 2014

In this study, the dirt adhered on the tubes of different materials (copper alloy tube, stainless steel pipe, polyethylene-aluminum composite pipe) were studied by the scanning electron microscopy, X-ray diffraction, X-ray photoelectron spectroscopy, PCR amplification, DGGE electrophoresis analyzers. Experimental results show that the microorganism in dirt on the copper alloy tube is mainly shuttle-type bacteria, and the distribution is dense. Stainless steel pipe’s dirt colony is assembling with long bacilli and cocci, polyethylene-aluminum composite pipe’s dirt is the large bacilli and density cocci. Three kinds of dirt in the pipe contains inorganic crystals with SiO2 and CaCO3, and the same type of element, but the content is differences, polyethylene-aluminum composite pipe have greater richness of microbial species, a copper alloy tube’s dirt is of little microorganisms.
The Health Risk Assessment and Characters of Vegetable Pb in Jiutai Suburb
Authors: Fu Wan Jun , Ma Gui Lan
Published: September 2014

119vegetable samples were collected from Jiutai County vegetable production base, and Pb concentrations were measured using graphite furnace atomic absorption spectrophotometer (GF-AAS). Results showed that the average Pb of vegetable was 0.05 mg·kg-1fresh weight, with only 1.5% above the Safety Requirements. Single-factor contaminant index was utilized for assessment. It was found that vegetable Pb order as following: leaf vegetables>fruit vegetables, dark vegetables>light vegetables. The average daily intake (DI) Pb of per standard person was urban 18.6 ug•d-1and rural 16.7 ug•d-1, as well as economical family 19.1 ug•d-1and poor16.3 ug•d-1, indicating that vegetable Pb in Jiutai County were safety. The Pb health risk was assessed based on the target hazard quotients (THQ). The study showed that THQurban=THQhigh>THQmedium>THQlow=THQrural, indicating the health risk via vegetable consumption in rural was relative lower than that in unban area. Assessment results proved that the vegetables Pb in this area is no health risk to persons.
Protein Subcellular Localization Feature of Essential/Nonessential Genes in 28 Prokaryotes
Authors: Liu Xiao , Geng Xiao Li , Tang Hong Ling
Published: September 2014

This study aimed to pursue the correlation between essential/nonessential gene and protein subcellular localization. The protein sequences of the essential/nonessential genes of 28 prokaryotes in Database of Essential Genes were analyzed by PSORTb3.0. Results show that proteins of essential genes locate in cytoplasm with relatively high percentage, i.e., in the range of 40% to 55%. Percentages of the proteins of essential genes locate in cytoplasma membrane are lower than that of nonessential genes, which mostly are about 15%. However, the values of proteins of nonessential genes are mostly about 20%, and that of Gram-positive bacteria are close to 30%. The distributions of protein subcellular localization of the essential/nonessential genes are different evidently. This could be used for classification of essential and nonessential genes.
Dissolution Condition Effect on Cellulose in Ionic Liquid and the Recycling of Ionic Liquid
Authors: Hao Yan , Li Ting Ting , Ma Xue Lian , Guo Gui Bao
Published: September 2014

Recently, room temperature ionic liquids (RTILs) have been widely used in dissolution, homogeneous modification of cellulose. Cellulose only could be dissolved in RTILs at elevated temperature. Herein, effect of dissolution condition on microcrystalline cellulose in 1-butyl-3-methylimidazolium chloride ([Bmim]Cl) ionic liquid was studied. The results indicated that the degree of polymerization (DP) of regenerated cellulose decreased from 161 to 83 with the increasing of dissolution temperature in the range of 70 °C to 110 °C, whereas the DP was affected by dissolution time slightly. Moreover, after dissolution [Bmim]Cl could be recycled by distillation and vacuum drying. The recycled [Bmim]Cl also had good dissolving capability of cellulose, and its FTIR spectra was similar to that of original [Bmim]Cl.
Biogas Liquefaction Process Design and Analysis Based on Mixed Refrigerant LNG Process
Authors: Zhou Shu Xia , Zhang Yu Lin , Liu Ai Hua
Published: September 2014

The relationship of parameters of biogas liquefaction process was complex.The parameters of biogas liquefaction process were in the further studied, and the thermodynamic parameters of biogas liquefaction process were analyzed. The optimization of the liquefaction process is object to establish the relationship the hot and cold heat load and UA values, And find out the way to reduce energy loss.
Effects of Different Reagent on the Separation of Starch and Protein in Corn Endosperm
Authors: Yan Rong , Li Xin Hua , Qi Xiao Jun
Published: September 2014

Corn and corn flour were steeped with different chemical reagents ,sulfurous acid (0.1%, 0.2%, 0.1%)、NaOH (0.1%, 0.3%, 0.5%)、alcohol (65%, 75%, 65%)、lactic acid (0.3%, 0.5%, 0.3%)、L - cysteine (0.6%, 1.0%, 1.4%) ,using distilled water as control. The separation of starch and protein in corn endosperm steeped under different reagents were analyzed using the amount of free starch measuring by iodine colorimety.The results show that under the action of different concentration of NaOH、sulfurous acid、lactic acid,the measured value of free starch in both corn and corn flour were increased and were higher than control,with the extending of the soak time and increase of reagent concentration.The effect of NaOH is the best,but when the NaOH concentration was above 0.5%, the amount of free starch began to decline. The starch granules were destroyed by the high concentration of alkali. The effect of Sulfite solution is good also, and the observed value of free starch slightly higher than the lactic acid. The effect of different concentration L-cysteine on corn was almost the same as control,but the effect of separation on corn flour was obviously enhanced and better than sulfurous acid,especially concentration above 1.0%.There was no starch granules out of corn and corn flour by alcohol soaking.
The Anti-Obesity Effect of Instant Pu-Erh Ripe Tea in Mice with Hydrogenated Oil Diet-Induced Obesity
Authors: Lian Ming , Jiang Yu Fang , Lv Shi Dong , He Yi Long , Zhou Jiang Sheng , Meng Qing Xiong
Published: September 2014

Obesity has become a fast growing epidemic in developing countries, as well as in some of the developing countries. Drinking Chinese tea has been demonstrated to have multiple beneficial effects to obese patients. It showed strong effect in reducing body fat and lowering blood sugar. This article tested the effect of instant Pu-erh ripe tea on weight loss in diet-induced obese (DIO) mice. The results demonstrated that instant Pu-erh ripe tea was be able to reduce the mouse weight dose-dependently. Its effect is stronger than that of L-carnitine, a weight loss drug currently on the market. Instant Pu-erh ripe tea also accelerated lipid metabolism and eased the high-fat diet-induced liver injury.
The Influence of KT on Wheat Anther Dedifferentiation
Authors: Yang Xue , Zhang Li Qin , Liu Chun Lei , Wang Ding , Wang Shi Jie
Published: September 2014

While Wheat cultivation in Henan Institute of Education experimental field as tested materials, and C17 as the basic culture medium, we researched the influence of KT in different concentration on wheat anther dedifferentiation. The results show that added to 0.25mg / L of KT in the medium, wheat anther dedifferentiation was the best, and it had the best stability.
Separation of Ethanol/Water in the Ethanol Adsorption of Functional Fiber
Authors: Zhao He
Published: September 2014

The surface of polypropylene (PP) fiber was modified through grafting polymerization of butyl acrylate, lauryl acrylate, methacrylate acetate, ethyl acrylate, butyl methacrylate initiated by ultraviolet (UV) in isopropanol/water mixture solution. In this paper, the factors influenced the separation performance of ethanol/water were discussed by grafted fiber, such as the solid-liquid ratio, the time of adsorption and oscillation, and the content of ethanol were discussed. The optimum adsorption conditions: the ethanol concentration of 90%,olid-liquid ratio is 1:80, when the handing time and adsorption shock time reached 10s, the adsorption could reach better effect.
Effect of a New Quinoline Inhibitor on Corrosion of X80 Pipeline Steel
Authors: Guan Xiao Rui , Zhang Da Lei , Wang Jian Jun , Jin You Hai
Published: September 2014

The corrosion behavior of X80 pipeline steel with quinoline inhibitor in NACE solution (CO2 environment) at different temperature/different pH/different inhibitor volume fraction was researched using electrochemical test methods. The results show that as the temperature increases from 30°C to 50°C, CO2 corrosion of X80 pipeline steel becomes much severer and the inhibition efficiency decreases first and then increases. As the pH increases from 4.15 to 5.76, the inhibition efficiency increases. When the volume fraction of inhibitor ranges from 2% to 4%, the inhibition efficiency increases, and particularly this is more obvious from 2% to 3%.
Determination of Palladium in Waste Palladium-Loaded Carbon Catalyst Samples Using Microwave-Assisted Sample Digestion and ICP-OES
Authors: Shi Chun Miao , Wei Xiao Juan
Published: September 2014

A novel method for the determination of palladium in palladium-loaded carbon catalyst samples was established by inductively coupled plasma atomic emission spectrometry after samples digested by microwave oven with aqua regia. Such experiment conditions were investigated as the influence of sample digestion methods, digestion time, digestion temperature and interfering ions on the determination. Under the optimized conditions, the linear range of calibration graph for Pd was 0 ~ 250.00 mg L-1, and the recovery was 97.89% ~ 102.00%. The relative standard deviation (RSDs) for Pd was 1.93 %. The proposed method was applied to determine the same samples with atomic absorption spectrometry with the results consistently, which is suitable for the determination of palladium in palladium-loaded carbon catalyst samples.
Effect of Novel Preservative Solutions for Fresh-Cut Apple by Coating
Authors: Wu Heng Yuan , Xiong Jian , Ye Jun
Published: September 2014

Preservative effect of novel preservation solutions for fresh-cut apple by edible coating was evaluated by a double-blind test at room temperature. The results showed that The preservative solutions, No1, No3, No4 and No5 had as excellent preventing browning effect as 1% NaCl solution. High concentrations of the preservative solutions could prevent browning effect, but would bring negative taste to the apple samples. 12.5% of No.3 was an optimal balance concentration of the preservative solution between anti-browning ability and taste-keeping ability, that is, it not only prevented the fresh-cut apples from browning effectively, but also kept their unique flavor and taste well.
Synthesis and Properties of UV-Curable Soybean Oil Based Polyfunctional Acrylate
Authors: Jiang Shun , Chen Guang Xue , He Ming Hui
Published: September 2014

With the reduction of fossil resources, renewable raw molecules have drawn a great deal of attention because of their ability to substitute for petrochemical-based materials. In this context, we synthesis a soybean oil based polyfunctional acrylate (PFA) by thiol-ene photo-click reaction and DCC catalyzed esterification in mild environment for UV-curable materials. Chemical structure was confirmed by 1H NMR and FTIR. Thermal and mechanical properties were respectively revealed by DSC, TG and TMA. All the cured films possessed excellent thermal stability and UV-curing performance, implying that they can be used for high-performance UV inks and coatings of packing industry, especially for ink-jet inks.
The Distribution and Content of Chromium in Jiaozhou Bay
Authors: Yang Dong Fang , Zhu Si Xi , Wang Feng You , He Hua Zhong , Wu Yun Jie
Published: September 2014

Based on the investigation data of Chromium (Cr) in Jiaozhou Bay waters in1981, this paper analyzed the content, distribution and sources of Cr in Jiaozhou Bay. Results showed that the contents of Cr were lower than 50.00 μg.L-1 in the full year, as reached Grade I in according to National Standard of China for Seawater Quality (GB3097-1997). Stream discharge from the major rivers was the unique pollution source for Cr. Cr contents in estuaries and offshore areas ranged from 0.48-32.32 μg.L-1 and 0.18-1.85μg.L-1, respectively.
The Structure of Environmental Background Value of Cadmium in Jiaozhou Bay Waters
Authors: Yang Dong Fang , Wang Feng You , Wu You Fu , He Hua Zhong , Zhu Si Xi
Published: September 2014

Sources of heavy metals in marine environment could be cagetoried as natrual source and artificial source. The portion from natrual source forms the environmental background value of heavy metal. This paper proposed the theory of the structure of environmental background value for heavy metal. Finally, this paper applied this theory in the analysis of the environmental background value of Cadmiun (Cd) in Jiaozhou Bay waters. This theory provides basis for pollution control and remediation of marine environment.
The Research on Ni-Based Ammonia Decomposition Catalyst
Authors: Zou Jin , Lu De Ping , Zhai Qi Jie
Published: September 2014

The Ni-based ammonia decomposition catalysts were prepared by vacuum dip-molding, the structures of catalyst carriers and nickel grain were characterized by XRD and SEM. Through three dip-activate technics, the Ni content in catalyst could exceed 6%. The NiO grains bond to each other in vermiform stacks, it is propitious to improve the catalytic activity because of the larger specific area.
Designing of Vehicle Operation and Control Based on Semiotics
Authors: Wang Zhen , Bian Fang , Li Ping
Published: September 2014

Nowadays, a growing amount of devices are applied on the car, such as systems for navigation, audio, phones, and driving assistance systems. Car interior function systems will get more and more complicated in feature, which require more attention and increase more work load [1]. This paper aims to describe how to design switches of vehicle operation and control system for enhancing the performance of drivers. Therefore, we conducted an interview of Chinese drivers about the problems with their car to explore the advantages and defects of the current interior design. In the paper some cases were analyzed by applied semiotics theory, to discover how to make the manipulation in in-vehicle easy to understand and use for users. To design easy to-use interface, this essay identifies key principle of designing car switches on the Basis of Semiotics, their features, and problems. In the content, we aim to appeal construct design criterion that could be used to direct later car switches systems.
Spatial and Temporal Change Analysis of Landscape Pattern of the Ebinur Lake Wetland
Authors: Kai Nan , Huang Ting Ting , Ma Song Mei , Huang Xuan , Dong Rui Rui
Published: September 2014

We used three TM images of Ebinur lake wetland: 1990, 2003 and 2010 (August) as the basis data source, We basing on the Markov transfer matrix to analyze the change in value and its transfer tendency of each land use type, and using Fragstats 3.3 software to analyze spatial and temporal change of landscape pattern of our study area in nearly 20 years.Our results show : (1) The land use change of the Ebinur lake wetland is significant: both cultivated land and residential land have expanded significantly, vegetation degraded, and the lake areas shrinked; (3)During 1990-2010, the number of landscape patches increased, the landscape diversity index and fragmentation index increased too, the shape of landscape patches tend to fragment, and the contagion index also declined constantly, which all indicating a fragment trend of landscape pattern of Ebinur lake wetland.
Summary of Study on Technology to Soil Sulfur Pollution Remediation
Authors: Yu Ke , Zhang Fu Zhen , Bo Yong Hui , Liu Jie
Published: September 2014

With the strengthening of human activities, more and more sulfur had entered soil system. The sulfur pollution of soil had threaten environment and human health. This paper reviews the status, sources and danger of sulfur pollution soils, and the physical-chemical remediation and bioremediation technology are also discussed. In addition, the future study on remediation technology for sulfur pollution soils was prospected.
Research on the Beneficiation Experiment of Iron of a Tailing Ore
Authors: Yang Wei Lin , Dai Hui Xin , Wang Hong Jun
Published: September 2014

The tailing sample containing 17.11% Fe was subjected to this experimental and taken from Yunnan. After a series of beneficiation tests, the iron concentrate assaying 58.65% Fe at a yield of 11.48% was obtained by process flow – weak magnetic and strong magnetic discarding tailing in advance, rough concentrate regrinding and weak magnetic – table recleaning, and ultimately realized the effective recycling of iron.
Effect of Low-Voltage Static Electric Field on Growth of Bacillus sp.
Authors: Yang Gui Juan , Wang Ying , Zheng Xin Yi
Published: September 2014

Bacillus sp. was stimulated by external low-voltage static electric field of different intensity at the same time. To make comparisons of the biomass, pH, the metabolism of Bacillus sp.and the surface morphologies of Bacillus sp.treated and untreated. The results showed that when the electric field strength was between 0.5V/cm and 3V/cm, the pH was bigger in test group than control group. The growth of Bacillus sp. was inhibited at 3V/cm, and promoted at 0.5V/cm to 2.5V/cm. The growth of Bacillus sp. was promoted maximumly at 0.5V/cm. Finally, we find that low-voltage static electric field didn’t damage the morphology. The appropriate electric field strength can enhance the metabolism of Bacillus sp.