bluuebunny/crossref_metadata_2025 huggingface dataset:
Research Progress on Volcanic Rock Reservoirs Based on Properties of Energy Materials in Songliao Basin
Authors: Zhang Jing Jun , Liu Cheng Zhi
Published: June 2013

Properties of Energy Materials (oil and gas) is very complex and important. In recent years, in Chinese eastern, western and mid continental basins, multiple rock oil and gas fields are found, such as Songliao Basin, Bohai Bay Basin, Erlian Basin, Tuha Basin, Junggar Basin, Sichuan Basin. Volcanic rock reservoir with its rich oil and gas resources, tremendous development potential, has aroused the domestic and foreign experts and scholars attention, volcanic rock oil and gas exploration theory and technology has been rapid development. In order to understand volcanic rock reservoir from the origin, further exploration target and guide the exploration deployment, the Properties of Energy Materials (oil and gas), main factors affecting of the development and comprehensive evaluation have become the research hot spots and the focus, there are many research techniques and results.
The Analysis and Analogy Evaluation of the Forming Conditions in Typical Coal-Bearing Basins of Outer Daqing
Authors: Hu Hui Ting , Xue Hai Tao , Wang Chan Juan , Liu Yang
Published: June 2013

Jixi BasinHegang Basin and Boli basin are major coal mining areas of the Daqing Exploration Area. They are rich in coal resources. In this paper, through analyzing the main controlling factors of the enrichment and reservoiring of the CBM, and the analogy of geological conditions between basins in studying area and other basins, the coalbed methane exploration and development is very successful. Basing on this, the article chooses Fuxin basin and Black Warrior basin as contrast basins to predict the resource by analogy, as the two basins have the similar geological conditions with the basins in studying area. The results show that Jixi basin has the highest total CBM resource, which is as much as 1672.07×108m3. And Hegang basin has the highest score of the potential enrichment of resource, so these two are preferred profitable exploration basins.
Study on Hydrocarbon Source Rocks with Accumulation Characteristics Research of Camck-Aral Sea
Authors: Hu Hui Ting , Xue Hai Tao , Kong Xiang Qi , Yao Hong Peng
Published: June 2013

Camck-Aral sea is one of the important China's developing overseas oil and gas exploration blocks. But conditioned by the degree of exploration, the hydrocarbon source rocks quality and resource potential of this block are not clear. Therefore, in this study, we analyzed the regional geological survey, hydrocarbon source rock condition and reservoir conditions. The results indicated that: The middle Jurassic formation in Camck-Aral sea block has a texture of interbeded sandstones and mudstones. Middle Jurassic hydrocarbon source rocks in Camck-Aral sea block is high in the abundance of organic matter,of which the matrix belongs to the type II2, and it has reached the maturity stage. This may mean that the study area should be based primarily on natural gas exploration.
Applications and Challenges of Rare Earth Resources in China
Authors: Hu Ting , Deng Rong Dong , Yang Xiao Feng
Published: June 2013

China has rich earth resources, with the advances of technology; the processing and utilization of rich earth have been paid more attention. It reviews the important applications of rare earth in metallurgy, ceramics, glass, petrochemical industry, nuclear industry, electronic industry, agriculture and medicine. China has the superiority of rare earth resources, but the processing technology is backward, the value-added of products is very low. The phenomena of excess exploiting and fire sale are serious because of lacking of unified supervision and the legal system to manage. So China doesn't have the advantage of price. In response to this situation, raise some suggestions by consulting relevant literature.
Study on Dynamic Characteristics of the YC6108-G Hypocycloid Internal Combustion Engine Crankshaft Based on ADAMS
Authors: Li Yan Zhou , Cai Gan Wei , Wang Wei , Huang Cai Gui , Luo Chang Jian
Published: June 2013

Damping and denoising of diesel engine is on the premise that we acquire the accurate excitation source information, and the main bearing force is major excitation source of diesel engine body vibration. When crankshaft rotating, elements of the diesel engine colliding each other, which resulted in slight deformation of the element and complicated applied force one another. It is difficult to meet the needs of calculation accuracy in structural dynamics analysis method of classical mechanics and trail analysis method is infeasible, so many-body dynamics method was put forward, the method could increase efficiently calculation accuracy, and the diesel engine excitation source of vibration and noise could be accurate predicted.
Shear Band Feature in Two Bulk Metallic Glasses with Different Inherent Plasticity
Authors: Gu Jian Sheng , Bo Hui Feng , Li Hong , Zhang Zhan Xin
Published: June 2013

Shear banding characterization of Zr64.13Cu15.75Ni10.12Al10 and Zr65Cu15Ni10Al10 BMGs was studied by using Rockwell indention method. The significant difference in plastic deformation ability can be ascribed to different shear banding features. Meanwhile, by using the fusible coating method, thermal effect on shear bands was investigated. We did not see apparently temperature rise in shear bands of these two BMGs through Rockwell indentation.
Load Bearing and Mass Relation Contrast between Composite Shell and Alloy Shell
Authors: Gao Hai Peng , Liu Meng , Wang Jun
Published: June 2013

To improve work efficiency of cabin and solve the contradiction between load bearing and mass, combining parametric modeling and optimization theory,the influence curves of load bearing on mass are proposed. Applying stress state theory, combining distortion energy theory criterion and Tsai-Wu failure criterion, shells load bearing is theoretically analysed. Contrast results are, in the same load condition, compared with alloy, the weight of composite reduces 46.2%;in the same weight condition, the load bearing of composite increases 75%. At present, the cabin load bearing is 0.04MPa, to improve work efficiency, increasing to 0.055MPa and replacing alloy by composite, the load bearing increases 37.5%, while the weight reduces 26.1%, then the contradiction between work efficiency and mass is coordinated.
Study on the Truck Scale Cheating Automatic Monitoring System Based on the GPRS
Authors: Zhao Yan Jun , Cheng Shou Guang , Qu Bin
Published: June 2013

The truck scale is more and more applied on the weighing system. To seek illegal profits, many kinds of truck scale cheating method is found in the weighing system. To monitoring the truck scale cheating method, the truck scale cheating automatic monitoring system based on the GPRS is brought out in this paper. The truck scale cheating automatic monitoring system is designed. The monitoring system includes three parts: the monitoring terminal, the GPRS transmission module and the upper monitoring system. The truck scale measurement data of the sensors are collected by the monitoring terminal and sent to the upper monitoring system through the GPRS module. The experimental system is established on the pneumatic conveying system and the experiment is carried out. The experimental results show that the automatic monitoring system can on-line monitor the truck scale cheating method and improves the security of the truck scale weighing system.
Study on Mechanical Automation with Design of Digital Function Generator
Authors: Jin Yuan , Wang Chun Hua , Li Ke
Published: June 2013

Digital function generator is widely used in mechanical automation,such as mechanical automation control and all kinds of electronic circuits. This paper firstly introduces the principle of digital waveform synthesizer and explains the specific realization method of the digital waveform synthesizer circuit. Next, it is carries on the detailed narration of the principle of DDS, the description of DDS specific design from FPGA, and provides parameter selection of the subsequent simulation processing circuit with 125 KHZ sine signal as an example. Finally, contrast the sine signal generated by this signal generator with by the Taiwan ESCORT function signal generator.Introduction
Study on Mechanical Automation with Design of Rapid Milk Detector Based on Freezing Point
Authors: Zhang Ren Cai , Yu Xiang , Liu Xing Ju , Zhai Jin Hai , Ning Zhen Wu
Published: June 2013

An efficient automated milk detector based on freezing point depression is designed. This detector shares characters of high efficiency and good stability with accuracy and automation. Its main parts include temperature sensor of IC (Integrated Circuit), pinion-rack mechanism and crank-rocker mechanism and electronic control system. Monitoring in-situ change of milk freezing curve and developing efficiency of sampling can be available by means of pinion-rack mechanism and IC temperature sensor mechatronics design. As a result, adulterating status of milk can be discriminated in a rapid and accurate and automated way. The detector may be employed to detect liquid foods other than milk as well.
Design of Detection System of Temperature Signal on Polishing Interface in CMP Semiconductor Material of SiC Crystal Substrate
Authors: Gao Hong , Su Jian Xiu
Published: June 2013

The semiconductor material, SiC single crystal substrate, has been become an indispensable substrate material in the field of semiconductor lighting. In order to detect the influence of polishing interface temperature on polishing quality in chemical mechanical polishing (CMP) SiC single crystal substrate online, in this paper, according to the principle of chemical mechanical polishing, a device has been designed for detecting the polishing interface temperature in chemical mechanical polishing. AT89S52 microcontroller-based, using six 1-wire digital temperature thermometer DS18B20 to detect the temperature signal of different six locations, then to transmit out by the wireless transmission module nRF24L01 chip, and to achieve a multi-point temperature signal collection and wireless transmission. The device is simple, reliable and low cost. It will be providing a reference for temperature measurements in ultra-precision machining process online.
Study on Polyvinyl Alcohol Hydrogel Materials for Improving the Performance of Artificial Articular Cartilage
Authors: Yuan Hou Jiang , Wei Zhou Jian , Yu Xia Zhen
Published: June 2013

Polyvinyl alcohol hydrogel has compatibility and biomechanical properties of human articular cartilage similar and good biological. The implantation in the human body can replace part of articular cartilage, which plays the role of bearing and alleviate the impact force. It has the prospect of clinical application. This paper introduces the research progress of polyvinyl alcohol hydro-gel materials. And compared with the characteristics of articular cartilage, clarify the possibility of repair of articular cartilage defects of the materials.
Study on the Rod Particle Material Concentration Measurement System
Authors: Zhao Yan Jun , Cheng Shou Guang , Qu Bin
Published: June 2013

The atmosphere environment pollution is still serious. The soot particle material is an important pollutant of the atmosphere. The Scattering-Integration method has some advantage, but the measurement light path adjusts difficulty. The rod particle material concentration measurement system is brought out in the paper. The particle material concentration measurement system is designed. The measurement system includes four parts: the mechanical system, the optical measurement system, the data transmission system and the automatic processing system. The system light path need not adjust while installing on the pipes. The experiment results show the system can measure the particle material concentration and the accuracy of the measurement system is improved.
Study on Predicting the Deformed Membranes Based on Silicon Nitride Materials with New Deflection Functions for Calculating the Capacitance of Circular Diaphragm CMUTs
Authors: Suo Xu Dong , Sun Wei Jie , Sun Zheng Dong , Yeow John T.W.
Published: June 2013

A new idea is presented which develops a general model predicting the deflection profile of clamped circular diaphragm of Capacitive Micromachined Ultrasonic Transducers (CMUTs) in order to calculate its capacitance. The CMUTs we consider is made of silicon nitride material which is widely used because of its low intrinsic stress. And the general model proposed in this paper is highly accurate in predicting the deformed membranes and exhibits excellent agreement with 3D-FEA results in capacitance deviation less than 1%. These new established deflection functions can be used to implement a much higher accurate design methodology for CMUTs and other MEMS-based capacitive type sensors built with circular diaphragm.
Study on Detection of Human Motion Using a RGB Color Space Shadow Method with Mechanics Properties
Authors: Yan Bao Dong , Yu Ying
Published: June 2013

The aim of human mechanics is to reveal the mechanics properties of human motion. Especially, the purpose of human motion detection is detecting the moving people from continuous image sequences, extracting human body segments and then getting motion feature. The paper presents a shadow detection algorithm based on covariance difference operator based RGB color space and discusses its mechanics properties. The presented algorithm includes four steps: object detection, suspected shadow detection, shadow detection and post processing. The presented algorithm of adaptive shadow detection threshold is adopted to suppress the effect of shadow in moving object detection more effectively. The experiment results show the algorithm presented in this paper can detect shadow effectively.
Study on Mechanical Mechanics with the Testing Pressure System Based on the Multi-CPU Platform and the LCD Screen
Authors: Xin Zheng Hua , Song Qi Xiang , Hu Liang Yi , Shao Xiao Xiao , Wu Gang
Published: June 2013

Mechanical mechanics reduces the difficulty of work or labor for people and operates more conveniently. This research designs the testing pressure tool or device using Mechanical Mechanics.This system gets the value of the external pressure. With the help of the AD&DA, it converts the analog to the digital in the control of the multi-CPU system. The multi-CPU system is composed of core 8051 system and NBC micro-controller series motherboard.Then it will send the data to the LCD screen and display in graphical form. It can test the pressure effectively. The test results are easily to read and beautiful. It should be applied widely.
Industrial Carbon Emissions Accounting from Energy and Non-Energy Consumption and Input-Output Model Construction for Trans-Sector Carbon Emissions Shift Assessment, China
Authors: Yang Shun Shun , Wang Huan Zhi
Published: June 2013

This paper describes an industrial energy combustion use and industrial process emissions accounting method. By utilizing three set of widely used energy combustion carbon emission factors, Chinas industrial energy consumption carbon emissions are calculated. By using the methods provided by the IPCC, the industrial process carbon emissions for extractive industries, chemical industries and metal industries are calculated. The results show that in 2010 China's industrial energy consumption carbon emissions reached approximately 6.91×108 t C (2.53×109 t CO2), 85% from coal burning. The industrial process emitted approximately 9.47×108 t C (3.48×109 t CO2). About 5.55×108 t C (2.04×109 t CO2) is emitted by providing heat and power to industrial processes. In addition, this paper also proposed an improved model coupling industrial carbon emissions data and input-output analysis. It will help to quantify and evaluate the trans-sector carbon emissions shift.
Study on Electronic Materials in Autonomous Information System for Energy Saving
Authors: Tian Xian Zhi
Published: June 2013

In order to save energy in autonomous information system,many researcher has studied on electronic materials based on information technologies. The author has studied electronic materials for energy saving . From study, the author found that energy saving materials are necessary for improving efficiency and saving resources. During the study course, some electronic materials had been investigated and some users had been made real survey to get the real condition and simulation condition. Therefore, the author had made some investigation and some electronic materials had been scientifically studied. The author hopes that the study will help to improve learning efficiency and saving energy.
Study on Environmental Materials with Treatment of Sweet Potato Starch Wastewater by Hydrolysis Acidification Sedimentation Process
Authors: Tian Xia , Shi Yan Xi , Lin Guo Lin , Zheng Qing Zhu
Published: June 2013

This study aimed at the application conditions of environmental materials in sweet potato starch wastewater by hydrolysis acidification process. The removal rates of COD and soluble protein were investigated to find suitable natural setting time, the quantity of acidic steeping liquor and pH. The results showed that traditional fermentation not only consumes time but also scarcely removal efficiency in short time. 40% acidic steeping liquor was added as an optimum dosage for effective treatment. In addition, the effort of pH (3.0-9.0) on the hydrolysis acidification of wastewater was investigated. The removal rates of COD and soluble protein reached 26.9% and 76.3% respectively at pH4.0. Therefore, pH was adjusted to isoelectric point that can effectively reduce the burden of subsequent wastewater treatment.
Characterization of Ga Co-Doping mc-Si Ingot Made of Solar-Grade Silicon Purified by Metallurgical Route
Authors: Ren Xian Pei , Wu Peng , Li Shuai , Cheng Hao Ran , Gao Wen Xiu , Chen Chao
Published: June 2013

In this paper, we investigated the characterization of a gallium co-doping multicrystalline silicon ingot made of solar-grade silicon purified by metallurgical route. It is shown that the addition of gallium yields a fully p-type ingot and resistivity distribution in the range from 1.2 Ω.cm to1.7 Ω.cm along the full ingot height. Minority carrier lifetime measurements indicate that this material is suitable for the production of solar cells with comparable efficiencies to standard material. In addition, gallium addition in compensated silicon during ingot casting is proved to be very prospective for controlling the resistivity and increasing material yield of ingot.
Study on Semiconductor Materials with Interaction of Beta Radiation with GaN
Authors: San Hai Sheng , Yao Shu Lin , Zhang Qiang , Chen Ran Bin
Published: June 2013

Wide-band gap semiconductor GaN is a promising material for direct-conversion nuclear micro-batteries to meet energy requirement for micro-systems. The properties of semiconductor GaN materials were studied by the interaction of beta radiation with GaN. By the Monte Carlo simulation, the trajectories of incident beta particles in GaN and the total energy deposition were obtained, which provide an optimal design inp-njunction width of GaN.
An Experimental Study on Microwave Welding Technology of CuW to Cu Substrate
Authors: Wang Xiao Wei , Jiang Kai Yong , Zhang Ji Liang , Wang Fei , Zhang Jing Jing
Published: June 2013

A preliminary study of welding CuW alloy to Cu substrate via microwave energy was investigated. Different proportions of CuW alloy powders were directly consolidated on clean Cu substrate surface. Then, they were heated at a certain temperature in a high vacuum microwave furnace. The results show that the appropriate conditions of 20°C/min heating rate, 900°C welding temperature and 5 minutes soaking time can weld CuW alloy to Cu substrate well, and the whole processing cycle is approximately 40 min. SEM morphologys reveal that the combination between CuW and Cu substrate is firm. The surface hardness of CuW alloy layer is 257HV, which is 2.5 times than that of Cu substrate. This technology reduces the processing cycle and has a positive significance on the surface modification and wear resistance of copper parts.
Performance Evaluation and Comparison of Spraying Modified Asphalt in Rigid-Flexible Composite Pavement Interlayer
Authors: Liu Zhao Hui , Zhang Jing Yi , Zhou Ting , Li Sheng
Published: June 2013

Focus on destruction features of the rigid-flexible composite pavement interlayer, Crumb rubber modified asphalt, SBS and crumb rubber composite modified asphalt, SBS modified asphalt were prepared. High temperature stability performance, medium-temperature fatigue performance and adhesive property of three knds of interlaminar material were evaluated and compared. Test results show that high temperature PG grade of SBS and crumb rubber composite modified asphalt is PG82, which showed better high temperature stability. Moreover, crumb rubber modified asphalt has more soft at normal temperature which benefited to medium-temperature fatigue performance. Besides, SBS and crumb rubber composite modified asphalt possesses better interlaminar adhesive property with 60°C viscosity is 2430Pas. So SBS and crumb rubber composite modified asphalt is recommend as spraying asphalt material in rigid-flexible composite pavement interlayer, the results can provide certain reference.
Study on Effects of Rolling Temperature and Cooling Velocity on Organization and Properties of T700
Authors: Song Zhuo Fei , Geng Ming , Feng Yun Li , Feng Run Ming
Published: June 2013

Effect of rolling temperature and cooling velocity on organization properties of T700 and the working load of the coiler was investigated with Gleeble-3800 Thermal/Mechanical Simulator. The results of this experiment show that the working load of the rolling machine will be increase with the reduction of the rolling temperature. The best rolling temperature is 550~600°C and the best holding time after rolling is one hour.
The Influence of Different Surface Compressive Stress on the Wettability of Ion-Exchanged Float Aluminosilicate Glass
Authors: Li Xiao Yu , Jiang Liang Bao , Zhang Xiao Wen , Zhang Xuan , Yan Yue
Published: June 2013

The effect of the surface compressive stress (CS) on the wettability of the chemically strengthened glasses on air side and tin side was investigated. The wettability of the air side of the raw glass is better than the tin side. After chemical strengthening, the surface energy of the air side decrease with the decreasing of the CS while the tin side is just the opposite. These results demonstrated that the wettability of the chemically strengthened aluminosilicate glass could be controlled by the compressive stress.
Influence of Different Cooling Systems on Surface Roughness in the Turning of the Ti-6Al-4V Alloy Used as Biomaterial
Authors: Brandao Lincoln Cardoso , Oliveira Juliano Aparecido , Coelho Reginaldo Teixeira , Ribeiro Filho Sergio Luiz Moni
Published: June 2013

Titanium and its alloy are materials with great application in the aeronautic and biomedical area. These applications have grown in the last decade due to high resistance to corrosion and biocompatibility of the Titanium alloys. However, Titanium and its alloys are classified as hard-to-machining materials that increase the production costs due to the highest tool wear. Thus, the finishing of components made of Titanium alloys can be impaired due to the complex shearing mechanism. This work shows a study of the influence of cooling systems and the input parameters on the turning of the Ti-6Al-4V alloy. Two depths of cut, two feed rates, new and worn tools, and three cooling systems were used as input parameters. The response was the surface roughness measured according to the Ra parameter. According to the results, it can be supported that the variation of all input parameters has influence on response. However, the most important input parameter on surface roughness was the feed rate. Thus, it can be concluded that the correct choice of the cutting parameters is relevant to produce high-quality components.
Microwave Dielectric Properties and its Compatibility with Silver of Glass-Ceramic Based on Co-Fire at Low Temperature
Authors: Shao Hui , Jian Gang
Published: June 2013

Low temperature co-fired glass-ceramic-Ag metal electrode systems were investigated in relation to Ag diffusion and micro structural development during firing. Sintering temperature was in a range of 800°C-900°C. At lower temperature of 800°C, Ag ion was diffused through in the LTCC substrates. However, Ag diffusion was not observed at 850°C below. Simultaneously, the densification of the electrode was greatly improved. With increasing sintering temperature, glass-ceramic to the electrode does not occur due to increase of the densification of the sample. The glass-ceramics exhibited good dielectric properties: εr=7.74, tanδ=0.7×10-3 at 850°C for 0.5h.
Solidification Paths within the Ceramic Systems
Authors: Lutsyk Vasily , Zelenaya Anna , Parfenova Maria
Published: June 2013

The aim of this work is to assemble the computer models of phase diagrams (PD) for the typical ternary systems and to examine the processes of crystallization on its base. Spatial schemes of mono-and invariant equilibria have been used for it. Analysis of concentration fields, obtained by the projection of the surfaces on the Gibbs triangle, allows establish the boundaries of phase regions (located above the considered fields), the sequence of phase transformations and microstructural elements for the solidification of the initial melt at equilibrium condition. Concentration fields have been analyzed by means of mass balances for their centers of masses. Based on this technology, the research identifies concentration fields with coinciding sets of phase reactions and microconstituents, and the fields with individual characteristics.
A Novel Solvothermal Route to Nanocrystalline Sn4P3 with Red Phosphorous as Raw Material
Authors: Huang Xiang , Sun Jiao Jiao , Huang He , Wang Bo
Published: June 2013

Nanocrystalline tin phosphide Sn4P3 was synthesized from red phosphorus and tin chloride SnCl22H2O by a low temperature (200°C) solvothermal reaction in ethanolamine for only 10 hours. The important parameters of solvothermal processmolar ratio of initial components (P/Sn), temperature and duration were investigated. The phase, composition and morphology of the products were characterized by X-ray diffraction (XRD), energy dispersive spectroscopy (EDS) and transmission electron microscopy (TEM). The ideal solvothermal conditions to synthesize pure and nanocrystallined Sn4P3 were summarized in this work.
The Influential Factors of Property on Polyether-Polyol Type Polyurethane Elastomer
Authors: Xie Fu Chun , Guo Fu Quan
Published: June 2013

Polyurethane (PU) elastomers based on all kinds of polyether-polygol, diisocyanate and chain extender were prepared by two-step processes;the different influential factors of polyurethane elastomer were discussed in detail. The results showed that when the molecular weight of polyether-polygol increased, the hardnesstensile strength and tear resistance of polyurethane elastomer decreased, but the elongation at break increased;the property of polyurethane elastomer increased with the increasing perecentage of hard segment phase;R numerical value (-NCO/-OH) was controlled between 1.01 and 1.03;the shorter chain-extender had excellent microphase separation and mechanical properties;With the amount of 1, 4-butadiene alcohol (BDO) incrasing, the performance of polyurethane elastomer becomes well,but when the amount of 1, 4-butadiene alcohol comes to a point it appears reverse.
Research on Hemocompatibility of Polypropylene Non-Woven Fabric Membrane Immobilized by N-Alkylglucosamides
Authors: Xin Zhi Rong , Yang Zong Feng , Yan Shun Jie , Du Bin Bin
Published: June 2013

New types of ecologically benign surfactants with sugar as head groups (N-alkylglucosamides) have been described, namely, N-octylglucosamides (NOGA), N-dodecylglucosamides (NDGA), N-cetylglucosamides (NCGA). N-alkylglucosamides were characterized by Fourier transform infrared spectroscopy (FTIR) and1H Nuclear Magnetic Resonance (1HNMR) respectively. N-alkylglucosamides was immobilized onto the surface of PPNWF by using Glycidyl methacrylate (GMA) as the linking agent. The chemical structure and composition of the modified PPNWF surface were analyzed by attenuated total reflectance Fourier transform infrared spectroscopy (ATR-FTIR) and X-ray photoelectron spectroscopy (XPS). The surface properties were investigated by water contact angle. The water contact angles of the modified PPNWF decreased from 111° to 73°. The hemocompatibility of the modified PPNWF was evaluated by platelet adhesion. The number of platelets adhering to the modified surface was more dramatically reduced than that of the virgin surface. The results indicate that the modified surface of PPNWF by N-alkylglucosamides was a facile approach to construct biocompatible surface.
Stress Analysis of the Underground Gas Storage Well Stored CNG Based on the Finite Element Method
Authors: Song Cheng Li , Dan Yong
Published: June 2013

Currently CNG has been widely used as an automotive fuel, and the security problems about CNG storage well are prominent which poses a serious threat to life and property.This indicates that the safety of the underground gas storage well stored CNG is of great importance. The purpose of this paper is to analyze the section of gas storage well that is the joint of casing and coupling based on the finite element method,as this section is the most dangerous.Using ANSYS software,the stress field of this section will be acquired.An example of a finite element model will be used to demonstrate the main section related to gas storage well failure is the root of the first engaged tooth of a joint between coupling and casing.
A Closed-Form Solution of Effective Young's Modulus for Composites Including Multi-Shape Inclusions Using Improved Mori-Tanaka Model
Authors: Luo Dong Mei , Yang Hong , Xiao Yi Ying , Wang Wen Xue
Published: June 2013

In this paper, an improved model is proposed by combining Mori-Tanaka method with Eshelbys equivalent inclusion concept to derive a closed-form solution of the effective Young's modulusE11for hybrid composites reinforced with multi-shapes inclusions. When only the fiber-like inclusions are considered in the model, the results are consistent with those from Tandons unidirectional aligned composites based on Mori-Tanaka theory. For composites reinforced with fiber-like and spherical inclusions, the homogenization theory is employed to verify the effects of the proposed model. The influence of volume fraction and Youngs modulus of each phase on effective Youngs modulusE11is investigated, and the results show thatE11is sensitive to the inclusion shapes, and the model is practicable to predict the effective mechanical properties of composites reinforced by several inclusions with different shapes.
Li,Na,Rb,La||F System for Molten Salt Reactor: 3D and 4D Computer Models
Authors: Lutsyk Vasily , Zelenaya Anna , Dai Ya Zhou
Published: June 2013

A computer model of LiF-KF-LaF3 system as one of the bounding systems of LiFNaFRbFLaF3 system is presented. The phase regions structures, horizontal and vertical sections are analyzed. The computer simulation of T-x-y diagrams can be used as an instrument to solve different applied tasks for molten salt reactor application.
Interaction Mechanism between Bovine Serum Albumin and Polyethylene Glycol Revealed with Elastic Light Scattering Spectroscopy
Authors: Zhang Wen Zhi , Zhang Kuan , Zheng Jian Long , Chen Hong Shu , Chen Wei Xing , Jing Xin Li
Published: June 2013

In order to gain deeper insight into the interaction mechanism between bovine serum albumin (BSA) and polyethylene glycol (PEG), the present work applied elastic light scattering (ELS) spectroscopy to investigate the interaction between BSA and PEG, and explore the effects of concentration and molecular weight of PEG on the interaction at physiological pH. The results showed that the interaction force existed between linear PEG and spherical BSA molecules was mainly hydrogen bonding. In addition, the apparent binding constant of system was evaluated by model calculation.
Quaternary Reciprocal Systems with the Inner Diagonals: Variants of Polyhedration
Authors: Lutsyk Vasily , Vorobjeva Vera , Parfenova Maria
Published: June 2013

New algorithm has been offered to divide a concentration complex of reciprocal system for the subsystems. It is based on the relations between the number of complex polyhedron vertexes and resulting number of simplexes. Method is demonstrated on the quaternary systems. It is easy realized in the software, and is very effective in the cases with inner points (compounds) and with the competition of inner diagonals.
Study on Extraction of Cucurbitacin B from the Pedicel of Cucumis melo L. by Acid Hydrolysis
Authors: Xu Xing , Tang Lan , Shan Hai Feng , Wang Zhi Qin , Shan Wei Guang
Published: June 2013

Acid Hydrolysis studied in this paper was in order to increase the content of cucurbitacin B
The Synthesis and Investigation of Crystallographic and Adsorption Properties of TiO2 Powders
Authors: Stepanov Anton Yur’evich , Sotnikova Larisa , Vladimirov Alexander , Dyagilev Denis Vladimirovich , Larichev Timoti Al’bertovich
Published: June 2013

The new technique for the TiO2photocatalyst manufacturing with titanium tetrachloride alcoholic solution using was revealed. The ammonium titanate precursor was precipitated by double-jet method with TiCl4alcoholic and ammonium aquatic solutions using. The TiO2nanopowders were prepared by precursors calcinations at 400, 500, 600, 700 and 800°C. The photocatalytic activity determination was made by the way of dye photodegradation technique (methyl orange). The difference in adsorption ability of TiO2dispersion reference to organic dyes was found. The conditions for the synthesis of TiO2anatase effective photocatalyst synthesis were revealed.
Tanjung Bin Coal Bottom Ash: From Waste to Concrete Material
Authors: Abubakar Abdulhameed Umar , Baharudin Khairul Salleh
Published: June 2013

Coal Bottom Ash (CBA) is a by-product from the generation of electricity using pulverized coal; Tanjung Bin power plant in Malaysia is a coal-based power plant that generates tonnes of bottom ash daily without known economic value that ends up in the ash pond. Due to the problems associated with the disposal ash pond in terms of cost and environmental impact, attention has now been focused on how best to utilize this waste. This paper present the recent development achieved on the utilization of bottom ash from Tanjung Bin power plant Malaysia in concrete development; physical and chemical properties, workability and fresh concrete properties as well as the strength development of Tanjung Bin bottom ash.
Kinetics and Distribution Clusters of Damage in Loaded Materials: Simulation with Probabilistic Cellular Automaton
Authors: Kazunina G.A. , Alekseev D.V.
Published: June 2013

The relative analysis of characteristics of time series of damage number and damage cluster number was made with a probabilistic cellular automaton on the basis of simulation of damage cluster ensemble evolution. There was demonstrated, that the transfer of the time series damage number autocorrelation to negative value conforms the transfer of cluster ensemble evolution to the stage of coalescence. The qualitative consent between the behaviour of autocorrelation observed by experiment with measurement phonon and electromagnetic emitting in loaded materials was assigned.
Characteristics of Electrochemical Machining Passive Films on Stainless Steel S304
Authors: Wei Ze Fei , Zheng Xing Hua , Ma Ning
Published: June 2013

Stainless steel S304 was used as experimental subjects, the influences of current density on the passive film morphology, thickness and removal quantity were studied by quantitative experiments. The effect of electrolyte concentration on polarization curve characteristics of stainless steel S304 was qualitatively analyzed. The results show that the passive film morphologies dandify with increasing current density; passive film thickness increases with increasing current density; the change tendency of removal with the current density is consistent with the theoretical formula.
The Experimental and Numerical Investigation on the Mechanical Properties of Metallic Foil
Authors: Zhang Hai Ming , Dong Xiang Huai , Wang Qian , Peng Fang
Published: June 2013

Micro-metal forming is a promising technology for the manufacturing micro parts of MEMS and MST, and the mechanical behavior of material at the micron scale need to be further explored. In this work, the mechanical properties of AISI304 stainless steel foils are investigated by the micro-tensile experiments and numerical prediction. The foils with different thicknesses (10, 50, 100 and 200μm) underwent different annealing treatments to obtain different grain sizes. The micro-tensile results show the obvious dependence of the mechanical behaviors on the grain size and thickness. Corresponding, a dislocation density based constitutive model which takes into account of the different strengthening mechanisms of grain boundary and surface passivation layer, is developed. The predicted results of the model show good agreement with the experimental data. The model interprets that the surface passivation layer and grain size play an important role in the overall mechanical behaviors of the micron metallic foils.
Thermoelastic Damping in Laminated Composite Circular Microplate Resonators
Authors: Zuo Wan Li , Liu Xu Dong , Li Pu
Published: June 2013

High quality factor is an essential requirement in the design of microsensors used for sensing and communications applications. In previous works, some analytical models have been developed for thermoelastic damping in monolayer structure and multi-layered beam. This paper proposes a new model for thermoelastic damping in symmetric, three-layered, laminated, microplate resonators. Our approach utilizes the analytical framework developed by Bishop and Kinra and Gaussian curvature. The effect of volume fraction is numerically calculated. It is noticed that the maximum damping is determined by volume fraction, which is independent of the single layer thickness. The thinner plate is, the higher frequency is that reach the maximum damping.
Perspective of Parallel Simulation in Mechatronic Systems - Metal Cutting
Authors: Dubovská Rozmarína , Kvasnica Peter , Kvasnica Igor
Published: June 2013

The method of simulation design at the computer systems is discussed. In the system identification theory of systems, modelling a program implementation is presented. The simulation of systems depends on definition of their mathematical models. The simulation method is rooted in the fact it is an experimental method comprising aspect like model calibration and data collection. These models are presented in a matrix form in a very good way. A matrix form is often employed to define tasks in the field of science and engineering.. The result of simulation of mathematical models of mechatronic devices, control and communication technology, control, climate changes and etc. can be created using parallel computer architecture. Advantages for users are presented by practical example of cutting process associated with the simulation of the observer.
Analytical Solutions Using a Higher-Order Refined Theory for the Static Analysis of Functionally Graded Material Plates
Authors: Swaminathan K. , Naveenkumar D.T.
Published: June 2013

Analytical formulations and solutions to the static analysis of simply supported Functionally Graded Material (FGM) plates hitherto not reported in the literature based on a higher-order refined shear deformation theory with nine degrees-of-freedom already reported in the literature are presented. This computational model incorporates the plate deformations which account for the effect of transverse shear deformation. The transverse displacement is assumed to be constant throughout the thickness. In addition, another higher order theory with five degrees-of-freedom and the first order theory already reported in the literature are also considered for comparison. The governing equations of equilibrium using all the computational models are derived using the Principle of Minimum Potential Energy (PMPE) and the analytical solutions are obtained in closed-form using Naviers solution technique. A simply supported plate with SS-1 boundary conditions subjected to transverse loading is considered for all the problems under investigation. The varying parameters considered are the side-to-thickness ratio, power law function, edge ratio and the degree of anisotropy. Correctness of the formulation and the solution method is first established and then extensive numerical results using all the models are presented which will serve as a bench mark for future investigations.
Optimal Bit Plane Arrangement for Image Size-Performance Tradeoff
Authors: Jeon Gwang Gil
Published: June 2013

This paper discusses the issue of tradeoff between image size and performance in PSNR on bit plane image. A bit plane of a digital discrete signal is a set of bits indicate a presented bit plane in each of the binary numbers depicting the image. Image can be converted into a series of binary signal by shattering them up into their bit planes. The 0th bit plane is the least significant bit and the last bit plane is the most significant bit. Experimental results show that the best tradeoff is using the third to the seventh bit planes.
Embedded System for Detection, Recognition and Classification of Traffic Signs
Authors: Correia Diogo Veríssimo , Gaspar Pedro Dinis
Published: June 2013

This study concerns the development of an embedded system with low computational resources and low power consumption. It uses the NXP LPC2106 with ARM7 processor architecture, for acquiring, processing and classifying images. This embedded system is design to detect and recognize traffic signs. Taking into account the processor capabilities and the desired features for the embedded system, a set of algorithms was developed that require low computational resources and memory. These features were accomplished using a modified Freeman Method in conjunction with a new algorithm "ear pull" proposed in this work. Each of these algorithms was tested with static images, using code developed for MATLAB and for the CMUcam3. The road environment was simulated and experimental tests were performed to measure traffic signs recognition rate on real environment. The technical limitations imposed by the embedded system led to an increased complexity of the project, however the final results provide a recognition rate of 77% on road tests. Thus, the embedded system features overcome the initial expectations and highlight the potentialities of both algorithms that were developed.
Digital Studying of Surface Groove on the Pipe Hydroforming Process in Cross Shaped Joint Production
Authors: Kahrizi Mohammad
Published: June 2013

The Y and T pipe joints production has recently been noticed by the researchers and industrial men.This paper, approved by the Ministry of Energy, is a part of the research result that analyzes the effect of surface grooves on the Counterpunch and friction coefficient on the pipe wall surface in pipe hydroforming Process for cross shaped joint production.The simulation results show creating the groove on the counterpunch surface causes distribution of thickness in bulged region changes. More over these results show that thickness distribution is a complex function of friction coefficient.
Experimental Investigations upon the Electrical Resistance of Microcontacts
Authors: Glovnea Marilena , Suciu Cornel
Published: June 2013

An important parameter in MEMS design is the electrical contact resistance. This depends on material conductibility, on the geometry of the contacting surfaces, on the applied load and on the current passing through the contact. This work aims to experimentally investigate the dependence between: electrical contact resistance and contact load force, contact resistance and contact area and contact perimeter for constant current through a microcontact.
Methodology for Determining the Propagation Speed of the Hydraulic Shock in the Pipes
Authors: Topliceanu Liliana , Ghenadi Adrian Stelian , Bibire Luminita
Published: June 2013

The hydraulic shock is a very wide spread phenomenon and it is difficult to combat. The paper presents the way of propagation speed determination of the hydraulic shock in the case of gases. The phenomenon is considered to be adiabatic and we can find out the propagation speed of the excess pressure wave, in the case of the pipe with a variable section on length. The dependence between the pipe section and the propagation speed of a ram's thrust is represented graphically.
Modeling and Analysis of Size Effects on Pure Copper Mechanical Behaviors in Micro Scale Plastic Deformation Processes
Authors: Wang Qian , Dong Xiang Huai , Zhang Hai Ming , Peng Fang
Published: June 2013

To verify the applicability of a comprehensive constitutive model, which was proposed to analyze size effects in micro plastic deformation, mechanical behaviors of pure copper was adopted as the investigated subject. Unknown parameters were fitted through least square method, and calculated results were compared with experiment data of pure copper as well as those obtained by surface model. Predicted results by the comprehensive model show good agreement with experiment data. Three distinct mechanical domains appear indicating that for pure copper two critical thickness to grain size ratios exist, between which stresses vary rapidly. When concerning the situation of pure copper with only one or several grains across thickness, surface model tends to fail while the comprehensive model performs well, which further verifies the validity and applicability of the comprehensive model.
Numerical Simulation of Dust Dispersion in 5 L Vessel
Authors: Chen Jia Chen , Zhang Qi , Ma Qiu Ju
Published: June 2013

Numerical simulation was used to obtain the transient concentration of dust in the process of dispersion in a closed vessel in this work. Through the transient concentration of dust obtained by numerical results, the best ignition delay time can be evaluated. For the 5 L vessel and the hemispherical injection nozzle and under the blow pressure of 0.5 MPa, the ignition delay time should be 50-100 ms. Numerical results agree with the data obtained in the experiments under the same condition. It is difficult that dust concentration in the process of dispersion reaches absolutely uniform everywhere in the closed vessel.
An Approach to Determine the Maximum Rate of Pressure Rise for Dust EXPLOSIONA
Authors: Ma Qiu Ju , Zhang Qi , Chen Jia Chen
Published: June 2013

A new science method called Recursive Fitting Method (RFM) used to calculate the dust explosion rate of pressure rise was introduced. Residual Sum of Squares per Point (RSSR) was introduced to evaluate the fitting goodness of different conditions. Compared with existing methods, the results show that Recursive Fitting Method (RFM) has higher computational accuracy by drawn an experimental curve. And it has better computational repeatability compared with Tangent Method by repeating calculation of the same data. The new method can not only reduce the influence of signal noise but also calculate the correct rate of pressure rise accurately.
Large Deflection Analysis of Non-Hinged Arch
Authors: Zhang Jia Wei , Liu Sheng Wei , Liu He Min , Liu Ting Bin , Zhao Jian Chang
Published: June 2013

Based on the finite deformation theory nonlinear differential equations of uniform-sectional circular arch is deduced, and analytical solution for displacement of the non-hinged arch under load is obtained. This paper provides a theoretical basis for the analysis and calculation of the long span arch.
Iron Oxide Materials for Positive Electrodes of Lithium and Lithium-Ion Batteries
Authors: Klenushkin Anatoly , Medvedev Boris , Kabirov Yuri , Evdokimov Mikhail
Published: June 2013

New iron cathode materials: strontium hexaferrite, spinel-like ferrites of copper, lithium, and zinc, as well as α-and γ-phases of iron (3+) oxide are proposed. Chronopotentiometry method allowed demonstrating the possibility to use ferrites and iron (3+) oxides as the positive electrode materials for lithium batteries.