bluuebunny/crossref_metadata_2025 huggingface dataset:
The Discuss of the Development of Residential Industrialization in the New Period
Authors: Gan Shen Qi , Zhang Hong , Yang Yi Zhen
Published: April 2014

In this paper, the basic situation of housing industrialization start today at home and abroad highlighting the latest developments in industrialized housing, and from the architectural design, building structure, building thermal engineering, project management and residential industrialization and other aspects of sustainable development for the future of industrialized housing development direction and trends discussed in depth.
The Method to Construct the Pattern of Mixed Cares for the Aged in New Community
Authors: Wang Gui Xiu
Published: April 2014

Aiming at the problem of serious shortage of the residential facilities for the old age care of our country and the problem of inadequate utilization of community level public buildings, such as community hospital, community halls and so on, this paper advocates a pattern of mixed cares for the aged in New Community, considering the elderly physiological and psychological needs. It explores the method and way to meet requirements of affectionate life for old age care by plat form of community planning and design, the combination design of community level public buildings ,and the elderly residential design.
Unascertained-Information-Based Calculation for the Permissible Input of Total Phosphorus in Poyang Lakes
Authors: Yang Jie , Tang Ai Ping , Cheng Lin , Zhong You Quan , Zhang Wu Gang , Xu Xiang Qun
Published: April 2014

The water environment is a system with many uncertainties and requires doing research by the method of uncertainty. Based on the dynamics of river hydrology and water quality, the uncertainty and incompleteness characteristics of monitoring information and frequency, each parameter in the model of Dillion is managed by using the theory of Unascertained Mathematics and unascertained expected value. This paper probes into the study of the permissible input of total phosphorus of Poyang Lake in Jiangxi and the credible level calculation. With this method, not only can the unascertained expected value of the permissible input of total phosphorus be calculated, its subjective reliability can also be obtained on the basis of the rules of four fundamental operations of unascertained.
A Study on the Comparison of the Energy and Environmental Pollution Prevention Items in South Korea’s Green Building Certification System (GBCS) and the U.S. LEED System
Authors: Shon Su Deok , Lee Seung Jae , Lee Kang Guk
Published: April 2014

With the current emphasis on building energy use and CO2 emission reduction, this study sought to compare the energy and environmental pollution items of South Korea’s green building certification system (GBCS) and the U.S. LEED system, with a view to exploring South Korea’s GBCS development direction. The conclusions of this study are as follows. First, South Korea’s GBCS is led by the government while the U.S.’s LEED system is led by the private sector. Second, South Korea requires preliminary certification and main certification while LEED requires main certification. Third, the South Korean evaluation is based on the final score allotment while the LEED evaluation consists of prerequisite and credit items..
Analysis on Third-Degree Price Discrimination in Oligopoly Market Based on Static Game Theory
Authors: Gao Xing You
Published: April 2014

Equilibrium production, equilibrium price and equilibrium total revenue in the case of implementing third-degree price discrimination and unified pricing were analyzed under the condition of two oligopoly firms with 2 sub markets by complete information static game method, and the relationship between the three indexes of the two cases were studied. The results showed that, under the condition of linear demand functions of the two sub markets, the equilibrium output of unified pricing was equal to the equilibrium output of discriminative pricing; the equilibrium price of unified pricing was weighted average of the equilibrium prices of two sub markets while discriminative pricing; the equilibrium total revenue of unified pricing was less than the equilibrium total revenue of discriminative pricing.
Print Ads "Three-Dimensional" Form of Research
Authors: Zhang Yu Huan
Published: April 2014

In the two-dimensional plane to refine core design of visual elements and will direct the important influence on the processing of space, space of display design also inevitable need considering the visual elements and plane of coordination and unity. The multimedia advertising originality and product value very clever combination of strong visual impact. To regard the "visibility" disorders, caused by the wrong is increasingly being used, to increase the rate of visual attention and increasing the effect of the ornamental interest. Plane outdoor advertising performance breakthrough in the plane of the two-dimensional space, create a new and unique visual effect.
CD147 Promote Proliferation in Prostate Cancer Cell
Authors: Fang Qing , Fang Fang , Liu Yu Lian , Li Wen Ping , Wang Li Guo
Published: April 2014

CD147 is expressed on the cell surface of most tumor cells, which results in cancer cells proliferation, invasion, metastasis and angiogenes. Our previous study indicated that CD147 could promote invasion andmetastasis of prostate cancer. However the role of CD147 on cell proliferation has not to be explored inprostate cancer. In this study, the effects of CD147 on cell proliferation of hormone-independent prostatecancer (LNCaP-AI) was investigated. In the present study, cell cycle distribution was investigated by flowcytometry and cell cycle protein were analysis by wester blot. The results demonstrated that knock-donwn CD147 expression induced G0/G1 phase arrest, and expression of cyclin D1 has potential suppressed with western blot analysis. The results suggest that CD147 could inhibit cell prolifearion and as potential therapeutic application in treatment of proste cancer.
Evaluation of Combined Treatments of Natural Fibers: Kenaf, Abaca and Oil Palm Fibers Using Micromechanical and SEM Methods
Authors: Sreenivasan Subramaniasarma , Ibraheem Sameer Adnan , Sulaiman Shamsuddin , Baharudin B.T. Hang Tuah , Ariffin Mohd K.A. , Abdan Khalina
Published: April 2014

This paper presents the results of three different fibers, Kenaf(hibiscus cannabinus), oil palm (Elaeis guineensis) and abaca (Musa textilis) which were treated using 5 different types of surface treatments namely sodium hydroxide for 24 hours, glycidoxypropyltrimethoxy-silane for 24 hours, NaOH followed by Silane (each 24 hours), NaOH followed by Silane (each 12 hours) and NaOH followed by Silane (each 6 hours). The mechanical strength of the fibers were then studied and compared to the untreated fibers. The highest strength was given by the fibers treated with NaOH followed by the combined treatments and the lowest were the fibers treated with silane. Also the bonding strength between the fibers and unsaturated polyester resin were then evaluated using micro droplet pull out tests. It was proven that all the treatments improved on the bonding strength. The highest was silane followed by NaOH. For the combined treatments it was found that the highest IFSS was given by the lowest treatment duration at 6 hours, due to the alkali nature of NaOH corroding the fibers which were then filled with silane, thus losing the ability to properly bond with the resin. The samples were also then characterized using a SEM to check the surface morphology which revealed that the NaOH reduced the diameter by removing impurities and lignin, thus increasing the aspect ratio. While silane coats the surface, increases the diameter and reduces the aspect ratio. Keywords. Kenaf, Abaca, OPF, Chemical Treatment, Bonding Strength, Droplet Test, SEM
The Application of Translational Medicine in Pharmacological Teaching
Authors: Huang Xiao Dong , Ren Kuang , Wang Yan Chun
Published: April 2014

To make the effective translation between the theoretical knowledge and clinical practice in the process of pharmacological teaching and to improve the teaching method on the basis of the contents. By the means of translation, the basic knowledge will be reinforced, the teaching results will be improved, and the clinical practice will be strengthened.
Changes in the Quality of Soybean during Warehouse Storage
Authors: Yang Wei Qiao , Liu Hai Dong , Liu Xia , Li Xi Hong , Shao Chong Xiao , Hao Mei Mei , Jiang Yun Bin
Published: April 2014

Large warehouse, being considered as the general type of storage granary in China, has proven to be the key post-harvest management in the fight against food security for long periods storage. Soybean (Glycine max) seeds bulk stored under ambient condition (the control) and mechanical ventilation (the test) for 12 month were analyzed for some physico-chemical characteristics to investigate the effect of storage condition on the quality of soybeans. The results indicated that the samples storied in texted storehouse had a lower level of the free fatty acid content. There was a notably higher water solute protein content compared with the samples in controlled storehouse, which effectively reduce the deterioration of water-soluble protein quality and respiration rates. These results provide convincing evidence that tested warehouse obviously superior to conventional storage, which can delay the quality deterioration of soybean seeds quality and has good prospects for application.
Study on the Shelf Life Quality of Kiwifruit with Different Maturity
Authors: Chen Huan Huan , Gao Kai , Li Xi Hong , Ma Hong Yuan , Li Yao Yao , Li Qi , Huang Xin Hong , Hao Mei Mei , Chen Lan
Published: April 2014

The quality of kiwifruit with three different maturities were studied on the shelf life. Different maturity of kiwifruits were stored at 0±0.5°Cfor 50 days and then taken them at 20±0.5°C for 12 days.Results showed that the kiwifruits with the firmness of 13kg cm-2 can keep a relative good quality during the shelf life.
Quantitative Analysis of Radix Rehmanniae from Genuine Producing Area by Near Infrared Spectroscopy
Authors: Gong Hai Yan , Xie Cai Xia , Wu Ming Xia , Cui Yong Xia , Chen Zhi Hong , Bai Yan
Published: April 2014

In this paper the water extract of Radix Rehmanniae from genuine producing area was rapidly determined by near-infrared spectroscopy (NIRS). The quantitative analysis model of the water extraction of Radix Rehmanniae was established by Partial Least Square (PLS). The correlation coefficient of calibration (R2) was 0.99529; the root-mean-square error of prediction (RMSEP) was 0.134. The results indicated that the water-soluble components in Radix Rehmanniae from genuine producing area can be rapidly and accurately determined by near-infrared spectroscopy technology.
The Study of Stability of Processing Grease Storage Temperature on Soybean
Authors: Hao Ke Fei , Hao Mei Mei , Chen Lan , Wu Dong , Song Chang Hong , Li Juan Juan , Li Qi
Published: April 2014

This paper studied the soybean under different temperature storage processing stability of greaseComparison of the moisture content, oil acid value and peroxide value under - 10 °C 0 °C and room temperature storage stored two years in soybean production fat The results show that,The higher the temperature the lower stability of greaseThe higher the temperature, the lower stability of moisture contentUnder - 10 °C, water content change is only 0.04%. at Room temperature the moisture content changes 0.11%The higher the temperature, the soybean processing oil acid value, peroxide value, the greater the increaseunder - 10 °CAcid value increased by 0.07KOH/(mg/g), under room temperature the acid value increases 0.97 KOH/(mg/g)Under - 10 °C peroxide value change tendency for 0.6 mmol/kg, room temperature peroxide value change tendency for 3.9 mmol/kgTherefore, low temperature could delay the deterioration of quality of soybean, and further improve the variation of water content, and delayed the acid value and peroxide value increase.
Hardness of the Schizolobium amazonicum Wood
Authors: de Almeida Diego Henrique , Cavalheiro Raquel Schmitt , Ferro Fabiane Salles , de Almeida Tiago Hendrigo , Christoforo André Luis , Calil Junior Carlito , Rocco Lahr Francisco Antonio
Published: April 2014

Brazil has an infinity of native species that provide wood with good properties for use in civil engineering, industries and other segments. Schizolobium amazonicum Wood is a species that is much used in Brazil to manufacture of wood based-products. Researches regarding the properties are being performed in order to rationalize their use. The aim of this research is to determine the hardness of the Schizolobium amazonicum Wood in directions parallel and normal to the grains. The tests occurred in accordance with the Brazilian Code ABNT NBR 7190: 1997. The average values determined were interesting hardness upon the low specific gravity presented by Schizolobium amazonicum Wood.
Influence of Nitridation Time on the Characteristics of GaN Films Deposited on Ni Metal Substrate by ECR-MOCVD
Authors: Bian Ji Ming , Qin Fu Wen , Zhong Miao Miao
Published: April 2014

GaN films were deposited on metal Ni substrates using electron cyclotron resonance plasma-enhanced metal organic chemical vapour deposition system (ECR-PEMOCVD). The nitridation time dependent structural and morphological characteristics of GaN films were systematically investigated by reflection high energy electron diffraction (RHEED), X-ray diffraction (XRD), and scanning electron microscope (SEM) analysis. The results indicate that it is feasible to deposit GaN films on Ni metal substrate under the proper deposition procedures. The high quality GaN films with c-axis preferred orientation and dense and uniform microstructure are successfully obtained under the optimized nitridation time. The GaN/Ni structure has great potential for the improvement of short-wavelength optical devices with excellent heat dissipation.
Mechanical Properties of High Performance Concrete Subjected to High Temperature as a Function of Fly-Ash and Fiber Addition
Authors: Lee Seung Jo
Published: April 2014

The purpose of this study is to have a better understanding of the mechanical characteristics of high performance concrete which is produced by mixing reinforcing fiber controlled by high temperatures with fly ash. After heating up the concrete, its appearance, demolition mode, residual compressive strength, weight reduction ratio and other mechanical characteristics were measured. To improve the mechanical characteristics of concrete, it was mixed with nylon, polypropylene, steel fiber and fly ash. The specimen was exposed to 100 ~ 800°C and its crack control, spalling prevention and other mechanical characteristics were reviewed. When the high performance concrete was exposed to 600°C or higher, its residual compressive strength dropped but its weight reduction ratio was significantly higher than it was heated before.
Modulus of Elasticity of Schizolobium amazonicum Wood Evaluated by Transversal Vibration Technique
Authors: de Almeida Diego Henrique , Cavalheiro Raquel Schmitt , Ferro Fabiane Salles , de Almeida Tiago Hendrigo , Christoforo André Luis , Calil Junior Carlito , Rocco Lahr Francisco Antonio
Published: April 2014

Schizolobium amazonicum is being much used in Brazil for several purposes because, besides being a native Brazilian wood specie, has important features such as low density and small incidence of natural defects. At this point, researches with the purpose of obtaining further knowledge of their properties are being conducted to better targeting their use. The aim of this research is to evaluate the modulus of elasticity of structural size pieces of Schizolobium amazonicum wood using the technique of transverse vibration. Tests were carried out using 30 pieces (standard moisture content 12%) with sizes of 3 cm x 15 cm x 2.5 m. The average value of elastic modulus determined for lumber of Schizolobium amazonicum was interesting to its low specific gravity.
Pretreatment Study on the Deposition of Diamond-Like Carbon Films on Quartz by Star-Shape MPCVD Reactor
Authors: Xiong Li Wei , Gong Guo Hua , Wang Jian Hua , Cui Xiao Hui , Zou Wei
Published: April 2014

Diamond-Like Carbon (DLC) films were deposited on quartz substrates by using a gas mixture of hydrogen-methane-oxygen in the Star-Shape Microwave Plasma enhanced Chemical Vapor Deposition (MPCVD) reactor. The pretreatment parameters include the pretreatment methods and the pretreatment time was optimized. Results showed that ultrasonically abrasive in the acetone solution with nanocrystalline diamond powder in it was an efficient pretreatment method to advance the deposition of DLC films, and 10 minute turned to be the most appropriate time for this pretreatment. The Fourier Transform Infrared spectrometer (FTIR) showed that the DLC films synthesized by the optimized technics have high transparence fit for optical applications. These indicated that the Star-Shape MPCVD reactor was the perfect equipment for the volume-produce of DLC films for its unique big reactive cavity.
Research on Degradation of Flocculating Stemming Contained Polymer and Clay Used for Profile Control
Authors: Zhang Wei , Zhang Shuang Yan , Ju Deng Feng , Yan Hai Jun , Fu Guo Qing , Wang Fang , Gao Meng Xiang , Cui Wei Hua
Published: April 2014

Since Menggulin reservoir fully been developed in1990, profile control technique is widely used for improving water swept volume. After multiple rounds and large-scales of polymer flooding by materials mixed with sol-gel and Yellow River clay, the formation damage such as depth blockage and stemming become more and more serious.According to statistics, in 2012 there are respectively 10 and 11 water injection wells happened with back flow of profile control agent and wells pressure higher than fracture pressure that without injection. The original reservoir permeability is good, and individual well production has the capacity of 40 to 50m3/d. Yet recently several oil wells almost have fewer even no liquid output due to the blockage and stemming. Estimated by a typical well group,the speed of sol-gel drive increased from 10 m/year to 50~60 m/year, and average water injection pressure were up to 16MPa which almost double original pressure while the only 2MPa pressure corresponding to oil wells. Hence, it show that the severe depth blockage of the formation exactly exit in Menggulin reservoir.
Research on Laser Remelting of Plasma Sprayed Ceramic Nanometer Coatings on the Inner Wall of the Cylinder Liner
Authors: Mao Jun Yuan , Zheng Wei Gang
Published: April 2014

The Cylinder liner is one of the working environment of the worst parts in internal combustion engine ,it is required to have good wear resistance, corrosion resistance, resistance to high temperature and high pressure shock, etc. After tests showed, better comprehensive mechanical properties of cylinder liner is got by using Plasma Spray composite ceramic nanometer coating technology, and after laser remelting treatment.
Research on Nanomaterials and its Latest Application
Authors: Lin Guo Min , Shang Miao , Zhang Wen Guang
Published: April 2014

Nanotechnology decides the ability of human manipulation of the atoms and molecules, the goal is to master the ability to create new material and design to create the desired application products, and nanomaterials is the basis of the integration of a variety of nanotechnology. The connotation and development prospect of nanotechnology are introduced. The present status and the research emphasis in every stage of the nanomaterials are pointed out and nanomaterials are classified according to the different way. The characteristics of all kinds of nanomaterials and applications in all fields are analyzed.Key words: Nanomaterials; Nanotechnology; Fullerenes; Graphene; Carbon nanotubes
Solvothermal Synthesis and Characterization of Hierarchical Calcium Carbonate Spheres
Authors: Chen Yin Xia , Ji Xian Bing , Quan Yu Lian
Published: April 2014

Hierarchical calcium carbonate spheres composed of nanoparticles has been successfully synthesized via a solvothermal process. The structures are fabricated by the reaction of Ca (CH3COO)2with (CO(NH2)2) at 110 °C in diethylene glycolwater mixed solvents in the presence of polyvinylpyrrolidone. The as-prepared products were characterized by field emission scanning electron microscopy (FESEM) and X-ray diffraction (XRD). The characterization results revealed that the average diameter of the hierarchical calcium carbonate spheres is about 5 μm, and the size of the nanoparticals range from 50 to 100 nm. In addition, a small amount of bundle-like aragonite calcium carbonate is also obtained in the experimental parameters.
Spectrophotometric Method for the Assay of Chlorhexiidine Acetate
Authors: Lei Yan Hong
Published: April 2014

To establish the determination of the content of chlorhexiidine acetate by ultraviolet spectrophotometry .The spectra (range: λ=200~320 nm) were processed. The linear ranges of chlorhexidine acetate was at 2~ 20 μg mL-1 .the chlorhexiidine acetate showed good linear correlation.The ultraviolet spectrophotometry data of the samples were also used to evaluate the samples quantitative composition.It was shown that recovery of the method by standard addition method was respectively valued 99.55% for chlorhexiidine acetate .The method was simple,reliable,accurate,reproducible with high sensitivity and selectivity.
Study on a New Polymer with Better Performance in High Salinity Reservoirs
Authors: Wang Kai , Dai Cai Li , Li Hui , Ding Qin Fang , Zhao Ming Wei
Published: April 2014

In this paper, the variation of viscosity with time is studied under condition of different influencing factors such as shearing time, mass concentration, salinity and temperature. The applicable conditions are optimized as following: The optimum mass concentration, salinity and temperature through laboratory experiment is 3000 mg/L~4000 mg/L, 40000 mg/L~80000 mg/L with Ca2+under 5000 mg/L and 20 °C~60 °C respectively. Finally, anti-shearing and oil displacement experiment are carried out under laboratory conditions. The results show that the new polymer after being sheared also has the ability to self-assemble and the enhancement in oil recovery obtained in core flow experiment is higher than conventional polymer flooding, which suggests that it has a wide application prospects in tertiary oil recovery.
Investigating Solutions for Injection Molding Weld Line Defects
Authors: Ni Guo Qing , Jia Qiu Shuang
Published: April 2014

With the application experience, the author introduced several simple but effective creation method of parting line, based on UG NX software CAD technology, and for maximum cross-sectional profile in the arc surface of the plastic products in typing the design process of the injection mold, the parting line is difficult to determine the specific location, and the conventional method of the edge curve of extract parts is difficult to create.
The Feasibility Research on the New Material Used in Electrical Fittings
Authors: Zhang Jun , Zhu Kuan Jun , Liu Sheng Chun , Si Jia Jun
Published: April 2014

Based on the requirements of The Twelfth Five Years development planning of State Grid and the development of electrical fitting, State Grid will enlarge the change of rural power network and power distribution market, which will make the coverage of rural power network and power distribution to be larger so that reducing the loss of the power transmission line will become an important task research. To reduce or replace the high energy consumption steel fittings and the high price aluminum fittings, this article make feasibility analyses for a new material used in electrical fittings to protect the environment and economy energy source, by analyzing the performance and test property of the new material.
The High Temperature Oxidation Behavior of Hot-Dipping Aluminized Steel 0Cr18Ni10Ti
Authors: Lou Jin , Ruan Cheng Xiang , Peng Xin
Published: April 2014

0Cr18Ni10Ti stainless steel was coated by hot-dipping in a molten aluminum bath, and then diffusing annealing at 950 °C for 2h. The high temperature isothermal oxidation behaviors of the hot-dipped aluminized steel and 0Cr18Ni10Ti steel were tested at 900 °C for 100h using resistance furnace. Morphology, and phase composition, element distribution of the oxide scale were characterized by XRD, SEM and EDS. The results of hot-dipping Al showed that slow weight gain was occurred, because of the formation of compact and dense Al2O3oxide film during the oxidation process. The result of 0Cr18Ni10Ti showed that instable oxidation occurred, and a significant weight gain was obtained. The oxidation behavior of the steel is subject to breakaway oxide nodules on the surface. The oxide nodules are composed of two layers. Outer Fe-rich layer is susceptible to spallation and inner layer is loose.
Strain-Dependent Flow Stress Modeling of Hastelloy X Superalloy under Hot Compression
Authors: Wu Horng Yu , Liu Hsu Cheng , Zhu Feng Jun , Chiu Chui Hung
Published: April 2014

The compression deformation behavior and constitutive relation of Hastelloy X superalloy were investigated in the temperature range of 950 °C to 1150 °C and strain rate range of 0.001 s-1 to 1 s-1 on a Gleeble-3500 thermo-simulation machine. The obtained experimental stress-strain data were used to establish strain-dependent constitutive equations. The correlation between the strain-dependent constitutive parameters and flow behavior was analyzed. Comparisons between the experimental and predicted results showed that the developed constitutive equation could be used to simulate numerically the flow stresses of Hastelloy X superalloy at any strains under hot deformation.
Application of Stabilizer to Improvement the Saline Soil in Lor Nur Lacustrine
Authors: Ci Jun , Zhang Yuan Fang
Published: April 2014

Considering the Lop Nur Lacustrine plain saline soil is a special soil which with poor engineering properties such as collapsible and expansion. Through an experimental research on the saline soils stabilized by lime, cement and a polymeric solidified material was conducted. The unconfined compressive strengths and water-related stability of stabilized saline soils were discussed. It was shown that unconfined compressive strength and water-related stability of stabilized Lacustrine plain saline soils attained corresponding engineering standards and that it could be used as roadbed fillings., which could provide a reference to prevent and treatment about the dangers of Lop Nur Lacustrine plain saline soil.
Analysis on Cupping Process of Cartridge Case without Heat Teatment Based on DEFORM-3D
Authors: Zhao Jing , Du Zhong Hua , Zhao Jin Ku
Published: April 2014

To reduce the forming process of cartridge case, increase productivity and reduce production cost, this paper has analysed whether heat treatment is needed after cupping process of cartridge case by using DEFORM-3D software. Through comparing numerical simulation results of forming cartridge case after cupping process without heat treatment and with heat treatment, we obtain that large differences exist between them in forming effect and metal flow liquidity. Therefore, its inadvisable for cartridge case to go on the next process without heat treatment directly. The research method of this paper can effectively simulate the forming process of cartridge case. The improvement proposed for cartridge case forming can become a novel idea, and it also can provide a reference for future researchers.
Design the Parameter Optimization of Yacht
Authors: Deng Zhong Jie , Song Si Yu , Li Jia Wei
Published: April 2014

through the analysis of the yacht shape characteristics, selection of other parameters reasonably, through the two development programming technology and CATIA software, we establish yacht parameters platform.Through the platform modeling, simulation of 3D yacht in three-dimensional software, finally we get the design scheme of Yangtze river yacht more reasonably.
Dynamic Contact Simulation Analysis of Spiral Bevel Gear Based on ANSYS/LS-DYNA
Authors: Feng Li Yan , Liu Ying Juan , Xie Wen Zhi , Huang Jing Wei
Published: April 2014

The meshing of spiral bevel gear is a very complicated nonlinear process.In order to obtain a more realistic stress , we take a pair of spiral bevel gear on EMU as the example to construct an accurate modeling with Pro/E and analyze its dynamics contact simulation with ANSYS/LS-DYNA. It calculates the distribution of the tooth surface’s stress during the entire dynamic meshing process. The curves of the tooth’s effective stress on different parts changing over time are obtained. At last, we make theoretical analysis on the calculation results.
Vehicle Driving Axle Half Shaft Fracture Analysis
Authors: Wang Jun Jie
Published: April 2014

by using optical microscope and scanning electron microscope (sem), for minitype automobile driving axle half shaft fracture piece of organization and the fracture characteristic is analyzed and the results show that the axle shaft of conditioning treatment in the quenching temperature high enough, make its surface and center organization exists in the group more ferrite, caused the artifacts of the final hardness and fatigue strength is insufficient, led to the use of half shaft torsional fatigue fracture.
Failure Research of Vehicle ABS Based on Fuzzy Diagnosis Technology
Authors: Ji Wen , Chen Zhong You , Li Qiang
Published: April 2014

Ultimate principle and means of vehicle ABS failure analysis based on fuzzy diagnosis technology are introduced, and the realization process is analyzed step by step, illustrated by the advanced limousines of Red Flag brand.
Corrosion Resistance of Ultrafine-Grained Pure Cu
Authors: Fang D.R. , Quan L.W. , Yang J.
Published: April 2014

Pure Cu samples were subjected to equal channel angular pressing (ECAP), and the corrosion resistance of the samples was investigated by potentiodynamic polarization measurements and electrochemical impedance spectroscopy measurements in 3.5% NaCl solution. The results show that the corrosion rate of the ultrafine-grained Cu decreases, in comparison with the coarse-grained Cu.
Hybrid Synchronization of Three Identical Coupled Chaotic Systems Using the Direct Design Method
Authors: Ji Xiu Huan
Published: April 2014

This paper investigates the hybrid synchronization behavior (coexistence of anti-synchronization and complete synchronization) in three coupled chaotic systems with ring connections. We employ the direct design method to design the hybird synchronization controllers, which transform the error system into a nonlinear system with a special antisymmetric structure. A simple stability criterion is then derived for reaching hybrid synchronization. Finally, numerical example is provided to demonstrate the effectiveness of the theoretical analysis.
Mold Design and Process Experiment of Open Die Cold Extrusion of Spline Shaft
Authors: Liu Ying Chun
Published: April 2014

in view of the 125 cc motorcycle transmission of spline shaft, spline is discussed in open die extrusion die structure characteristics and the influence of the spline forming mold springback problem, put forward the choice among the formability of open die extrusion into the die Angle, can avoid squeezing into the mold mouth occurs when local upsetting.
Study of Non-Smooth Gear Based on MÜLLER Algorithm
Authors: Xiao Miao Xin , Yang Jian Jun
Published: April 2014

It is found that the relationship the detection function and collision function of non smooth point by using MÜLLER algorithm, and launched the conversion between the different states of gear system of the offset vector. So the unified algorithm of maximal Lyapunov exponent of non smooth gear system is obtained. An example is given to verified this method. The validities of algorithm for largest Lyapunov exponent of gear power systems is proved by comparing the the largest Lyapunov, system phase and Poincaré section.
The Application of Virtual Prototype Technology about the Analysis and Evaluation in Automobile Braking Performance
Authors: Zhou Jun
Published: April 2014

Based on reasonable abstraction the coupling model about road and vehicle is estabished by means of ADAMS/View. And it uses virtual experimental technique, which is correspondent with road braking performance test, to reach a consensus on virtual test and vehicle test. In the meanwhile, the parameterized vehicle structure adapts to analyze the parameters effect of braking efficiency and stability with variable element analytica.Vehicle structure and employment both are some of the parameters. With the analysis, the major influence factors of automobile braking performance would be obtained and then improve the performance by parameter optimization would be improved
The Geometrical Model of Vertical Shaft Impact Crusher Rotor System
Authors: Zhang Jun Ming
Published: April 2014

The Solid Works environment, through the methods of field surveying and mapping of a vertical shaft impact crusher for structural reverse and design,counter rotating subsystem of the spare parts for 3D geometric modeling. Counter rotating subsystem figure condition check, the 3D model is proved to be correct, for the next dynamic modeling of the model combined with removal and the basis for dynamic simulation.
The Microscopic Analysis on the Crankshaft Fracture Surface of the Compressor
Authors: Chen Wei Dong
Published: April 2014

Fracture is the most common failure modes of the crankshaft, under normal circumstances often result in serious consequences. So study the reasons for the crankshaft fracture, thus achieving the purpose of controlling and reducing accidents, is very realistic. In this paper, for example, a factory break 4M16 compressor crankshaft. Through micro-analysis of the crankshaft fracture, the 4M16 compressor crankshaft is a low stress fracture of brittle fracture .The fracture is mainly due to dendritic segregation cause tissue caused by uneven. Solution to the problem is to increase the ratio of forging the forging, heat treatment when the grain refinement.
The Research and Design of a Condensed Electrolysis Environmental Suction Machine Based on Air Multiplier
Authors: Chen Kai Jun , Zheng Wei Gang
Published: April 2014

As for the phenomenon that the current household suction machine has some shortcomings such as poor suction effect, serious internal pollution and no emission gas processing plant, a designing scheme of a condensed and fixed, adsorbing and recovering , electrolytic separating and purificating environmental suction machine based on air multiplier is put forward. And analyse and verify its feasibility by modeling and theory.
The Study of Inner EM Environment in the Helicopter under the Influence of Lightning Strikes
Authors: Wang Yan De , Gao Cheng , Guo Fei , Li Yan Xin
Published: April 2014

Numeric simulation of the whole aircraft is conducted in the CST MICROSTRIPES workshop which is based on the theory of TLM. The current waveform is defined according to the standard of SAEARP5412. The EM environment inside the helicopter is analyzed when the lightning strikes on the middle of the helicopter vertically. The lightning current moves along the aircraft to the back, then travels to the middle along the line. Simulation analysis demonstrates that the method can effectively simulate the indirect lightning effect, and shows the EM environment characteristic inside the helicopter.
Turning-Milling Machining Center Spindle Box of 3D Design
Authors: Han Yun
Published: April 2014

car milling machining center spindle box is mainly composed of the spindle and the spindle on the relevant parts, enclosure, encoder related parts and some standard parts. Using UG unique components modeling based on feature function, using the stretching, rotating, reinforcement, lofting and scanning, array characteristics and drilling easy design components of the three-dimensional entity, and in the process, modifying the shape and size, complete the optimization design.
Vertical Shaft Impact Crusher Wear and Anti-Wear Measures
Authors: Zhang Jun Ming
Published: April 2014

In order to reduce the vertical shaft impact crusher wearing parts wear and tear, improve the service life and reliability, analyzes the performance characteristics of the aircraft and wear characteristics, summarizes all the factors that influence the wear and tear, and the anti-wear measures are put forward.
Welding Stress Numerical Simulation and Analysis of High-Pressure Pipeline
Authors: Zhang Lei , Zhang Jin Zhou , Li Xiao Ming
Published: April 2014

Welded stress has an important impact on quality and life of of high-pressure pipeline. Based on pipeline material performance, considered welding arc force and its mining action, selected double ellipsoidal heat source model, simulated welding process of of high-pressure pipeline, analysised welding temperature field and stress field, determined the distribution disciplines of welding stress, provides useful help on exploring the disciplines of pipeline welding.
Research on Deep Sea Sonar in Marine Navigation of the Ship Anti Collision
Authors: Lv Zheng Xiang
Published: April 2014

in view of the current situation of ship has collision with sea mountain , design and develop the sonar of ship collision avoidance system based on PLC.its main purpose is to remind the crew in front of mountains and ship automatic collision avoidance. The design is based on the minimum distance of ship and mountain, put forward the system scheme: measure the two objects distance by sonar , using this system as the control core , the information is analyzed and calculated by this system. When the distance between ship and mountains is less than the minimum safe distance.so this system will alarm crews and as deceleration avoidance .
A Feedback-Based CPG Control Method for a Single-Legged Hopping Robot
Authors: Wang Ting Ting , Zha Fu Sheng , Wang Peng Fei
Published: April 2014

Biological CPG (central pattern generator) is responsible for the generation of animals' rhythmic motion such as hopping and running. In this paper, a novel feedback-based CPG control method is proposed, in which output of the CPG network is totally activated and contained by sensory feedbacks. The network responses to environment changes quickly with multi-feedbacks included, and has strong adaption to disturbance and non-flat terrain. This control method is applied to the controlling of a single-legged hopping robot to show the effectiveness of the approach. The simulation results prove that this control mechanism closely couples environment and robot motion, and dynamically stable hopping emerges from feedbacks contained in the neural networks.
Fracture of the Leads of Integrated Circuits with TO Package
Authors: Yang Xiu Yun , Jia Ming Yu , Sun Qiao Yun , Yao Wen Qing
Published: April 2014

The Kovar alloy leads broke from two integrated circuits (ICs) with TO (Tin Outline) package. Through the metallurgical microstructure analysis, energy dispersive spectrometer (EDS) analysis and fractography analysis, the failure mode of the leads was found to be stress-corrosion-cracking. After checking the whole plating process, it was found that the residual chloride ions resulted in stress-corrosion-cracking. The chloride ions were absorbed inside the residual organic containment below Ni-plating layer. And a corrective measure was proposed.
Optimization Time for Bending Extruded Aluminum Profile
Authors: Elkhmri Naser M. , Li Xiao Xing
Published: April 2014

The goal of this paper is to simulate the bending process of extruded aluminum profile using ABAQUS/CAE software. Bending investigations were conducted using the finite element method. The main contents of research work include simulation software, which give in details the pre-processing steps followed to obtain an accurate model to work on. The computing time is often important, explored some ways to reduce it. The simulation give information about the location of critical areas on the profile after bending; the middle section was targeted since it is the area most deformed. This paper focus on the influence of the die mesh, initial distance, mass scaling factor and time scaling factor on the evolution of the computer time (CT), kinetic energy (KE), stress (SVMises) and strain (peeq) .
Phase-Field Simulation Studies of Multiple Grains Coupled with Force Flow Field
Authors: Feng Li , An Ling Min , Zhu Chang Sheng , Lu Yang , Xiao Rong Zhen , Cheng Bo
Published: April 2014

Coupling the force flow field with the phase field model for the isothermal growth of dendrite multiple grains, Sola algorithm is used to calculate the flow speed and pressure of liquid metal, double grid numerical method was used to reduce the calculation amount of computer simulation, the space factor and time factor were introduced to improve the accuracy of double grid numerical calculation, Taking Al-2%-Cu alloy for example, the dendrite growth process of the binary alloy was simulated under forced convection environment; Simulation results can capture the real dendrite growth and interactions of the liquid metal flow in the process of dendrite growth under forced convection environment: The flow of metal liquid affects the growth morphology of dendrite multi-grain. The flow of liquid metal changes the growth speed of dendrite tip in different directions for each dendrite, the greater of the liquid metal initial flow speed, the worse of dendrite morphology symmetry; different initial flow speeds result in the different distance between each dendrite. The metal liquid forced flow causes the instability of dendrite growth interface, it changes the degree of undercooling, composition, dendrite tip growth rate and the curvature radius of dendrite tip in the dendrite growth forefront interface. For the forefront dendrite growth interface free energy system, the dendrite tip growth speed and curvature radius were adjusted by the competitive growth of dendrite tips, thus reached a new stable state for the interface, which resulted in the emergence of bifurcation in dendrite tips. The liquid metal flow speed between different grains was affected by the relative position and morphology between different grains, and also affected by the initial inflow speed of the liquid metal.
Prediction and Prevention of Distortion for the Thin-Walled Aluminum Investment Casting
Authors: Liu Yong Zhen , Cui Guo Ming , Zeng Jian Min , Gan Wu Kui , Lu Jin Bo
Published: April 2014

Investment casting is one of main precision casting processes to realize near net shape castings. For the castings with thin-walled cross section or complicated shape, it is easy to generate casting stress such as thermal stress, mechanical stress and phase transformation stress, resulting in casting deformation due to the uneven cooling and hindered contraction. Once three-dimensional deformation is formed, it is very hard to correct. In this paper the finite element method (FEM) was used to analyze the stress and deformation of thin-walled lost wax casting. The results show that the temperature and stress distributions are uneven in the casting and the tendency to deform is higher even with insulating shell mold. And based on the results, the technical measures of adding supporting ribs are adopted to restrain deformation. The practice of volume production indicates that no casting was rejected due to deformation defects.
Study on Thermal Decomposition Characteristics of Magnesium Salt Flame Retardants
Authors: Zhang Xu , Li Dan , Xie Hua , Ma Rui Feng
Published: April 2014

Magnesium salt flame retardant is a new filler flame retardant agent, and can release the water and absorb the latent heat during the thermal decomposition, which can effectively inhibit the polymers decomposition and cool the combustible gas generated in the case of fire. In this paper, the magnesium salt flame retardant is synthesized in different conditions. Then the thermal decomposition features of the magnesium salt flame retardants with the smallest particle diameters are characterized by using thermogravimetric analysis and differential thermal analysis. Finally, on the basis of this analysis, optimization parameters for preparing the magnesium salt flame retardant with good thermal decomposition performance are obtained, which may be helpful for guiding the preparation of high-performance magnesium salt flame retardants and providing a beneficial reference.
The Influence of Underpass on Surface Subsidence Caused by Double-Tube Shield Tunneling
Authors: Zong Wei Kai
Published: April 2014

Shield construction will cause surface subsidence, and the presence of underground structures above the tunnel has an impact on surface subsidence. Based on this, with the engineering of undercross shield tunnel construction on railway station as background, used numerical simulation method to analyze the effect of surface subsidence of underground passage, and studied the influence of depth and width of underpasses on ground movement induced. The results show that: The impact of the underground passage to the wire surface subsidence caused by the shield cannot be ignored. Surface subsidence caused by double shield will be decreased because of the existence of the underground passage, and that related to the channel depth and width. The greater the depth of underground channel, the greater the surface subsidence; greater the underground channel width, the smaller surface subsidence. Meanwhile, the surface subsidence trough width and the largest settlement scope unrelated to the depth of underground tunnels but the underground channel width, and increases with the increasing of the underpass width.
Compact and Precise Gonio-Stage for Thin Film Measurements by Using Glancing Incident Synchrotron X-Ray
Authors: Fan Jiang Wei , Han Xiao Gang , Liu Mei Quan
Published: April 2014

A Compact and precise gonio-stage for Grazing incidence X-ray absorption fine structure (GIXAFS) measurement is presented in this paper. The gonio-stage can provide a range of 0-35mrad and a resolution of 0.012mrad. An expert alignment can be realized automatically by computer program to obtain precise initial condition. An accuracy verification test of angle control carried out on BL7C station in KEK gives a satisfied result. At last, high quality GIXAFS spectra for 200nm thick HfO2/Si thin film were obtained.
Research of the Finishing Needle Automatic Processing Based on the LabVIEW
Authors: Liu Jing Pu , Feng Pei , Yang Chong Chang
Published: April 2014

Finishing needle is a micro finishing tool, used for increasing smooth finish and enhancing the material performance of the mipor finishing. Because of the tiny size and complicated shape, at present, only the traditional manual grinding is being used in the domestic. Manual processing needs high technical requirements and strong dependence. It is difficult to guarantee the quality of the processing. Therefore, this paper studies the automatic processing of micro-finishing tool, develops an automatic processing apparatus and the experiments show that this device can achieve automatic processing of finishing needle basically.
Adsorption Characteristics of Different Stratification in the Coal Reservoirs of Southern Qinshui Basin and its Main Controlling Factors
Authors: Tang Shu Ling , Tang Da Zhen , Xu Hao , Tao Shu , Fang Yuan , Gao Li Jun
Published: April 2014

Based on previous measured data and adsorption isotherms experiment of six coal samples from different stratification of the southern Qinshui basin, discussed the diversity between different stratification on adsorption characteristics and its main controlling factors. The results show that: In the macro level, bright coal layer has the highest adsorption capacity, Langmuir volume (VL) is up to 40m3/t ; the adsorption capacity of dull coal and semi-dull coal is relatively low. By analyzing the relationship between the Langmuir volume of coal petrography and various factors, discovering the Langmuir volume has a positive correlation with vitrinite content, vitrinite reflectance, fixed carbon content, and micro-pores content, but negative correlation with ash, while it has no significant linear relationship between moisture, porosity, permeability. By grey relational analysis, it shows that the impact is in descending order from vitrinite content to fixed carbon content, vitrinite reflectance, micro-pores content, ash content.