bluuebunny/crossref_metadata_2025 huggingface dataset:
Preparation and Optical/Electrochemical Properties of Poly(3-bromothiophene)
Authors: Liu Fu De , Duan Li Jie , Zhou Yong , Qu Bo Yang
Published: December 2013

Poly (3-bromothiophene) was prepared by FeCl3 oxidative polymerization. UV-Vis spectrum, fluorescence spectrum, photoluminescence (PL) spectrum and cyclic voltammograms of poly (3-bromothiophene) were recorded.The maximum absorption peak at 380 nm and the maximum emission peak at 504 nm. Scanning electron microscope (SEM) of poly (3-bromothiophene) shows that its morphology is nanowire structure. Poly (3-bromothiophene) exhibits good electrical properties with conductivity of 0.8 S/cm.The optical band gap, electrochemical band gap, HOMO/LUMO energy were calculated with the value of 2.38 eV,1.99 eV,-5.18 eV and-3.19 eV , respectively.
Analysis of the Development Trend of Avionics System
Authors: Ge Xing Guo , Tao Zhong Xiang , Tian Chun Yan
Published: December 2013

Avionics system has been existed for over 80 years and plays more and more important roles in the war today. The process of development of the avionics system in general and its modification are described. The technique performance and properties of several avionics system seekers are analyzed, and development trend of avionics system are discussed.
Extraction of Dissoluble Protein from Antlers by Pulsed Electric Fields
Authors: Yin Yong Guang , Jiang Wei , Liu Wei Jia
Published: December 2013

The extraction of dissoluble protein from antlers using high intensity pulsed electric fields (PEF) was investigated, and then, the extract was preliminary separated by ultrafiltration, and tested the antioxidant activity of each part. The effect of extraction rate of protein among different ratio of material and water, field strength, pulse number and times ware investigated in this text. And optimize the test by ternary quadratic regression rotation combination design, the optimum condition was determined as: ratio of material and water1:12, field strength27.03kV/cm, pulse number12,times 2. Under such condition the maximal rate of extraction of dissoluble protein is 27.32%. The three parts of proteins by ultrafiltrated had been confirmed with DPPH, superoxide anion radical scavenging ability.
A Modified Drucker-Prager Criterion for Transversely Isotropic Geomaterials and its Numerical Implementation
Authors: Wu Wei Yu , Liu Guo Hua
Published: December 2013

A failure criteria basing on Drucker-Prager yield criterion for geomaterials is modified in terms of the inherent anisotropy of the friction angle and the dilation angle. To implement the model in a numerical way, the corresponding consistent return mapping algorithm is formulated and by dividing the scalar product of the stress rate and the strain rate into the deviatoric and spherical parts, the consistent elastoplastic tangent modulus matrix is obtained. Then, the codes are introduced into finite element software ABAQUS via the UMAT. An example has been presented illustrating influence of the anisotropic degree on the bearing capacity and the pattern of strain localization.
Clinical Treatment and Analysis of 126 Cases of Hypertensive Cerebral Hemorrhage
Authors: Li Xiao Hong , Yu Ke
Published: December 2013

Objective: to analyze and summarize treatment experience of 126 cases of patients with hypertension cerebral hemorrhage. Methods: to analyze retrospectively from June 2012 to August 2012126 cases of patients treated in our hospital neurology treated, to analyze and summarize clinical treatment and prognosis of all patients included in the statistics. Results: 126 cases of patients, 27 cases were basically cured, , 32 cases were markedly effective, 29 cases were efficient, 23 cases were ineffective, 11 cases died, because of fund reasons 4 cases discharged from hospital without making the systematic treatment .Conclusion: through internal medicine conservative treatment, the treatment effect of patients with less blood loss (usually < 30 ml) is better, the treatment effect of patients with large amount of blood loss is ineffective.
Research and Exploitation of Chorpyriphos Pesticide Microemulsion
Authors: Wu Ya Qian , Xia Hong Ying , Zhao Feng
Published: December 2013

Pesticide formulation science is significant to deal with formulation development, production and storage as well as the interaction of the pesticide with plants, insects, mammals, soil, air and water. Aqueous pesticide microemulsion has become one of the most potential pesticide formulation instead of the conventional pesticide formulation in recent years. Very few works has studied the methodology of pesticide microemulsion preparation with environment-friendly compound.The green environment-friendly chorpyriphos pesticide microemulsion was successfully obtained through the further trials of screening of heat storage and cold storage experiments and the examination of dissociation rate. The optimized chorpyriphos microemulsion formulation is composed of chlorpyrifos (2.366%), ethyl acetate (1.001%), agricultural emulsifier 600(5.714%), natural carboxylate (2.857%), glycol (33.972%), ethanol (14.571%), and water (39.519%).
Significance of Decoy Receptor 3 and IFN-γ/IL-4 in Peripheral Blood of Rheumatoid Arthritis Patient
Authors: Sun Ke Xin , Li Yan , Zhao Chen , Li Chun Hui , Guo Su Hong , Hou Yi Ju
Published: December 2013

To investigate DcR3 Levels of peripheral blood in rheumatoid arthritis (RA),and analyzes the correlation between the DcR3 Levels of Peripheral Blood and the Disease Activity in Rheumatoid Arthritis Patient.The expression levels of DcR3 mRNA in peripheral Blood monocytes of 80 RA patients and 50 healthy controls were detected by real-time polymerase chain reaction,the levels of DcR3IL-4 and IFN-γ in serum were detected by ELISA(enzyme-linked immuno sorbent assay).The expression levels of DcR3 mRNA of active stage in RA patients were higher than that of remission stage in RA patients and healthy controls (P<0.05);The levels of DcR3IFN-γ and IFN-γ/IL-4 of active stage in RA patients were higher than that of remission stage in RA patients and healthy controls (P<0.01);The correlationships between DcR3 mRNA levelsIFN-γ/IL-4 and active renal score (DAS28) show positive correlation.The expression levels of peripheral blood DcR3 does significant increase in RA active patients and it is closely related with the activity of the disease which suggesting that DcR3 migh involved in the pathological process.
Study on Properties of PG Separated and Purified from Actinidia arguta
Authors: Li Shu Qian , Liu Chang Jiang , Xin Guang , Zhang Bo
Published: December 2013

Polygalacturonase (PG) is key enzyme for softening consenescence mechanism of fruits. In this work, Properties of PG separated and purified from wildActinidia Argutawere studied. The result shows that the optimal reaction temperature is 40°C with a high enzyme activity around 30-50°C. PG keeps a thermo stability at the temperature ranging from 30-40°C, which decreases with increasing of temperature and PG will lose all its activity under 60-70°C for 1h. The optimal reaction pH value for this enzyme is 5.5. As far as the stability in different pH values is concerned, PG is relatively stable for preservation at pH4.5-6.5.The michaelis constant for PG is 27.31. When the concentration for EDTA is higher than 2mmol/L, it is inhibitive for PG . The metal ions of K+, Ca2+, Fe2+, Fe3+, Mg2+can activate the PG enzyme to some extent, the strength of activation:Mg2+Fe3+K+Fe2+Ca2+;The metal ions of Cu2+Zn2+Mn2+Ba2+Al3+can inhibit PG enzyme to some extent, the strength of inhibition:Al3+Ba2+Mn2+Cu2+Zn2+.
Analysis of HBV-DNA in Hepatitis B Patients with HBeAg Negative in JiLin Area
Authors: Zhao Chen , Zhao Yang , Yuan Zhong Hai , Hou Yi Ju , Jiang Xiao Ming , Li Yan
Published: December 2013

Objective: To illustrate the relationship between serum HBV-M and HBV-DNA in HBeAg-negative HBV patients. Methods: Serum isolated from HBV patients. FQ-PCR was used to detect the levels of HBV-DNA. ELISA was used to detect the serum HBV-M. Results: The positive rate of HBV-DNA was much higher in HBeAg-positive HBV patients (98.6%) than in HBeAg-negative HBV patients (48.7%). Among the different HBV-M patterns, the positive rate of HBV-DNA with positive HBsAg, HBeAb, and HBcAb was 59.4%; the positive rate of HBV-DNA with positive HBsAg and HBcAb was 32.3%; the positive rate of HBV-DNA with positive HBsAb, HBeAb, and HBcAb was 30.4%; the positive rate of HBV-DNA with positive HbeAb and HBcAb was 13.6%; the positive rate of HBV-DNA with positive HBcAb was 7.7%; the positive rate of HBV-DNA with positive HBsAb and HBcAb was 33.3%. Conclusion: HBV-DNA does still replicate in HBeAg negative HBV patients, and copies of HBV-DNA is a sensitive monitoring marker of monitoring HBV replication for those persons infected HBV.
The Research on the Synthesis and Bioactivity of Carbonate Hydroxyapatites
Authors: Wang Guo Qing , Lin Wen Gui , Zhang Nai Sheng
Published: December 2013

The composition and structure of carbonated hydroxyapatite (CHA) are much closer to those of inorganic minerals in natural bones. A series of experiments have been conducted to investigate the following aspects: (1) the mechanism of CHA synthesis by precipitation approach; (2) the biocompatibility and stability of CHA coatings. The results showed that an even single phase CHA crystals could be developed from Ca (NO)3-(NH4)2HPO4-NaHCO3-NH4OH system. Lastly, the surface of Ti-based CHA/UHMWPE coatings (2μm) was uniform and continuous with average bond strength of 32 MPa. 60 days after implanting the coatings into animals, the surface of the implanted material was totally covered by newly grown bone tissues whose structure was of no significant difference with normal bones, without changing coatings bond strength greatly. The result of the present work implied CHA coatings have excellent bioactivity and stability.
Effect of La Promotion on Co/ZrO2 Catalysts in Fischer-Tropsch Synthesis
Authors: Zhao Hong Xia , Lü Hai Liang
Published: December 2013

The effects of lanthanum promotion on cobalt based catalysts in Fischer-Tropsch synthesis were investigated. The Co/ZrO2 catalysts promoted by lanthanum had higher activity and selectivity in Fischer-Tropsch synthesis. The catalyst with the La content 1% had the highest activity and selectivity attributed to the promotion effect of La. However, excessive La addition could depress the activity of the catalyst due to the Co-La interaction and the lower reduction degree.
Effect of Jin Jiang Granules on Immune Function in Normal Mice
Authors: Miao Ming San , Li Rui Qi , Zhang Xue Xia
Published: December 2013

Objective: Explore the effect of functional food Jin Jiang granules on immune function in normal mice, to provide basis for Jin Jiang granules which are applied in early stage of cold. Methods: After normal mice were given to different doses of Jin Jiang granules, levels of peritoneal macrophage phagocytosis rate and indexes, thymus and spleen indexes, haemolysin, hemolytic plaque, peripheral blood lymphocyte transformation rate, NK cell activity were determined. Results: Compared with blank group, Jin Jiang granules can improve levels of peritoneal macrophage phagocytosis, organ indexes, haemolysin, hemolytic plaque, peripheral blood lymphocyte transformation rate, NK cell activity. Conclusion: Jin Jiang granules can improve the organisms immunity, relieve symptoms and promote recovery when applied in early stage of cold.
Effect of Psoraleae Gel on Vitiligo Animal Pathological Pattern
Authors: Miao Ming San , Liu Dan Dan , Qiao Jing Yi
Published: December 2013

Objective: Explore the effect of psoraleae gels external use on vitiligo guinea pig, to prove psoraleae gel can promote the formation of melanin guinea pig skin like psoraleae injection. Methods: Using chemical decolorization to establish vitiligo animal models, treatment by psoraleae gel, observation the effect of high, moderate and low dose of psoraleae gel external use in vitiligo guinea pig serum ChE activity and MDA level, skin pathological changes and the sum total of skin melanin granules. Results: Compared with model group, high, moderate dose psoraleae gel group can significantly improve the serum ChE activity, on vitiligo mode, High, moderate dose psoraleae gel group can significantly improve the serum ChE activity and significantly reduce serum MDA level, high, moderate and low dose psoraleae gel group were significantly promote the guinea pig skin melanin formation and the sum total of melanin granules increased significantly. Conclusion: Psoraleae gel treatments of vitiligo guinea pigs have a very good role; this experiment can show psoraleae gel can be used in the clinical treatment of vitiligo.
Determination of Gallic Acid Content in Paeonia lactiflora Pall by Capillary Zone Electrophoresis
Authors: Liu Hai Xing , Liu Qing , Dong Yu Juan , Huan Yan Fu , Wang Lin Tong , Ye Kai Qi , Yue Hui Juan
Published: December 2013

In this paper, using capillary zone electrophoresis method determined gallic acid content in Paeonia lactiflora Pall. Under the condition of buffer solution containing 20 mmol/L Na2B4O7, effective separation of components to be tested was realized. Measured content of gallic acid in Paeonia lactiflora Pall was 1.15 mg/g (RSD=4.28%) (n=6), the average recovery was 88.48% (n=5). This method is simple and fast.
Determination of Gallic Acid Content in Terminalia by Capillary Zone Electrophoresis
Authors: Liu Hai Xing , Liu Qing , Zhang Xiao Yue , Huan Yan Fu , Wang Lin Tong , Ye Kai Qi , Yue Hui Juan
Published: December 2013

In this paper, using capillary zone electrophoresis method determined gallic acid content in terminalia. Under the condition of buffer solution containing 20 mmol/L Na2B4O7, effective separation of components to be tested was realized. Measured content of gallic acid in terminalia was 25.36 mg/g (RSD=6.8%) (n=6), the average recovery was 87.6%. This method is simple and fast.
The Distribution of Diatom in the Five Lakes along the Yangtze River
Authors: Zhou Yu , Yu Quan , Hang Wei , Wang Yu Zhong , Wang Hui Pin , Hu Sun Lin , Liu Chao , Wen Jin Feng , Zhang Xiao Ting , Dai Wei Lie
Published: December 2013

In order to investigate the diatom distribution in the five lakes along the Yangtze River, and discuss the significance for the diagnosis of drowning. 6 water samples were collected in the five lakes along Yangtze River in June, 2012. Subsequently, The genus and the quantity of the diatoms in the water samples were investigated using scanning electron microscopy (SEM). The result showed us that there was significant difference between the waters sampled from the different sites . These data on diatom distribution are helpful to the diagnosis of the cause of the death as well as to the determination of the drowning site in cases of drowning. Therefore, it is necessary to develop the database of diatoms in more extensive water bodies for the forensic diagnosis of drowning in the future.
Study on Reducing NOx Emission from a Marine Diesel Engine
Authors: Zhou Song , Liu Yan , Li Cai Ling
Published: December 2013

This paper aimed on the effects of several technologies on engine NOx emission via simulation, an improved method to reduce engine NOx emission was obtained according the simulation results and was verified by engine test. The study uncovered that a retarded fuel injection timing would reduce engine NOx emission and make it below IMO limitation, while the penalty of fuel consumption is under tolerance of engine operator. The method adopted in this research can bring engine NOx emission under current IMO requirement, and this has been verified by engine test.
Solar Activity Effects on the Variabilities of Long-Term Ionospheric TEC
Authors: Li Lei , Zhang Shu Fang , Wang Yi Zhuo , Hu Qing
Published: December 2013

To reveal the modulating effects of the solar activity on ionospheric TEC, the long-term characteristics of TEC were analyzed. The analysis was based on the data of the sunspot and data of GPS observation provided by IGS analysis centers from 1999 to 2011. The results showed that the variation of monthly mean TEC was of significant regularity. The regularity was caused mainly modulation action of solar activity. In view of the spatial variation of TEC, the monthly mean TEC can be well described for modeling and prediction on base of relationship between TEC and latitude.
Lignin Degradation in a Symbiosis System of Macrotermes Barneyi
Authors: Lan Xin , Yang Ying Jie
Published: December 2013

s: In this study, to understand the efficiency of lignin deconstruction by fungus-growing termite Macrotermes barneyi which feed on softwood only contained guaiacyl lignin, the wood metabolites in the hindgut of M.barneyi were analyzed using direct pyrolysis-gas chromatography-mass spectrometry. Significant cleavage level of propyl side-chain of phenylpropane in the hindgut was detected, and ring hydroxylation was also observed by the detection of syringal lignin. Compared with the reduction of furfural content, a pyrolysis product of pentose polymers in hemicellulose, reduction of the content of guaiacyl lignin which contained one-carbon side chain was huger in the hindgut, indicating the degradation of depolymered lignin is greater than that of hemicellulose. The analysis of lignin structure in the gut is contributed to understand the mechanism of lignin degradation by fungus-growing termite.
Preparation of a Novel Chitosan-Based Composite Nanofibers by Electrospinning
Authors: Zhang Yin , Li Jun Feng , Qiu Ke Hui , Zhong Liang Zhao , Li Guan Yu , Lai Xue Fei , Zhang Pei Cong
Published: December 2013

A novel chitosan-based composite nanofibers which was composited poly (vinylpyrrolidone) (PVP) and poly (vinylalcohol) (PVA) was prepared by electrospinning, and the spinnability and morphology of CS-based composite nanofibers were investigated. The result of SEM showed that with the introduction of PVP to composite fibers the spinnability of the system was improved. And the CS/PVA/PVP composite fibers displayed mean diameter of 71 nm and narrower diameter distribution than CS/PVA composite fibers. IR demonstrated that there were intermolecular hydrogen bonds in CS/PVA/PVP fibers. XRD showed that the crystalline microstructure of the fibers was not well developed.
The Research on Comprehensive Utilization of Phosphogypsum
Authors: Du Bing Xin , Huang Kun
Published: December 2013

Introduce several examples of surface active agents used in wet-process phosphoric acid (WPPA) to show its effect on the quality of phosphogypsum. Summarized both domestic and foreign methods of comprehensive utilization of phosphogypsum, such as being made into calcium sulfate whisker, building materials, soil improvement agent, chemical raw materials and etc. Some problems of resources utilization of phosphogypsum in China are summarized, and reasonable suggestions are put forward.
Recent Advances in Form-Stable Phase Change Materials of Polyethylene Glycol
Authors: Li Yan Shan , Wang Shu Jun , Liu Hong Yan , Zheng Wan Gang , Ma Huan Qing , Meng Fan Bin
Published: December 2013

The polyethylene glycol is a kind of phase change energy storage material with small thermal hysteresis effect, the phase change enthalpy and phase transition temperature varies with its different molecular weight. This article summarizes polyethylene glycol as research progress of phase change energy storage material, which mainly discusses the preparation methods and outlook about form-stable phase change materials.
Application of Nano-SiO2 on Photoanode of Quantum Dots Sensitized Solar Cells
Authors: Wang Ren Bao , Liu Ling , Wan Lei , Xu Jin Zhang
Published: December 2013

A new TiO2-nanoSiO2 hybrid film is prepared through adding the nanosized SiO2 into the TiO2. A more environmental and simpler method is found to prepare CdSe quantum dots (QDs) sensitized TiO2nanoSiO2 hybrid films for the quantum dots-sensitized solar cells (QDSSCs) application. The prepared colloidal CdSe QDs (~2.6nm) was linked to the TiO2-nanoSiO2 hybrid film using 3-mercaptopropionic acid (3-MPA) as a linker molecule slowly with drop and drop. The power conversion efficiency of 1.33% was achieved using the sensitization photo-electrode prepared by using TiO2nanoSiO2 hybrid film modified with CdSe (TiO2-nanoSiO2/CdSe) under the illumination of one sun.
A Study on the TG/DTA Behavior of Decabromodiphenyl Ether
Authors: Linghu Wen Sheng , Sun Chun Yan
Published: December 2013

In this work, the TG/DTA behavior of decabromodiphenyl ether (BDE-209) at nitrogen and air atmosphere by using a thermogravimetric analyzer was investigated. The results showed that both of TG and DTG curves at nitrogen atmosphere are very similarly with that at air atmosphere. About 75 wt% and 25 wt% of total mass loss were observed at the temperature range of about 300-430 °C and about 430-580°C, respectively. It is indicated that the mass loss of BDE-209 during the thermal treamtnet is mainly caused by the evaporation and thermal decomposition.
The Research Development of Basic Theory in Micro-Forming
Authors: Sun Xi Yang , Li Dong Mei
Published: December 2013

With the increasing demand for high efficiency, low cost and the bulk, so the production of micro-forming has a very important significance. Firstly, the introduction of micro-forming is introduced in this paper. Then, its basic theory, including size effects and temperature effects, is presented. At last, a future research direction is highlighted.
Structural Optimization of Mine Hoisting Skip Underframe Based on Modal Analysis
Authors: Zhang Yi Jie , Kong Ling Qiong , Zou Huan
Published: December 2013

Aiming at the problems of vibration and noise appeared in the work of lifting the skip underframe of the mine, a parameterized model of the underframe of skip is established by taking advantage of UG. And a finite element modal analysis is done by leading 3D model into the ANSYS, and the credibility of the finite element model is verified by combining the modal test. On the basis of comparing the characteristics of the external excitation frequency, the dynamic characteristics of the underframe of skip are evaluated and the structure is optimized. The results of the optimization indicate that: not only the modal frequency of the first eight orders of the ship underframe has avoided the range of external excitation frequency, with a smooth mode of vibration, avoiding the occurrence of sympathetic vibration effectively, but it has lost a weight of 10.6%, achieving an improvement of the hoisting capacity of the skip equipment. This research is of important reference to the technical transformation of skip equipment for some mine enterprise.
The Experimental Design and Research of Coaly Similar Materials Based on Uniform Design Method
Authors: Wang Bo
Published: December 2013

In order to better implement ratio production of coaly similar material, make use of research results of existing similar materials, consult domestic and foreign documents, and combined with the needs of their own experiment, determine the requirements for coaly similar material, propose a selective condition of similar raw materials, and according to the condition determining a selective content and range of similar raw material. Compared with the advantages and disadvantages of uniform design method and the orthogonal experiment design, put forward the corresponding experimental design, and its uniform dispersion was studied, the research show that the use of uniform design method that used in the ratio and manufacture of coaly similar material, which is very reasonable, its research results provide the basis and foundation for the future experimental research of similar material.
Sequentially Coupled Thermal-Mechanical Analysis of the Brake Disc Used in Air Disc Brake
Authors: Pei Shuang Hong , Guo Xue Xun , Wei Fu Dong
Published: December 2013

The basic theory involved in the coupled thermal mechanical analysis is presented briefly. Base on the contact theory, friction heat generation theory and heat transfer theory, the heat distribution ratio between the disc and brake pad is determined, a 3D transient heat conduction differential equation and corresponding boundary conditions are established. Finally, according to the analysis requirement, the business analysis software ABAQUS is chosen as sequentially coupled thermal mechanical analysis solver. In order to know the temperature of discs friction surface during the cycle braking and continuous braking processes, a sequentially coupled thermal mechanical analysis model of the disc is established according to the energy dissipation theory. The temperature field and stress field of the disc during emergency braking, repeat braking and continuous braking processes are carried out based on this model.
A Study on Cathodic Protection Current Density on Rebar in Onshore Concrete Structure of Persian Gulf
Authors: Wang Ya Ping , Fang Da Jing , Huang Jun , Shen Er Bu
Published: December 2013

The service life of reinforced concrete structure has been greatly influenced by corrosion of steel, however, impressed current cathodic protection (ICCP) system is able to control corrosion of steel, especially which is corroded by chloride along the coast areas. In this work protection current and related technical parameter in both intake and outfall structure has been investigated in the seawater cooling structure along the coast area of Persian Gulf in Saudi Arabia. The most suitable protection current density provided by ICCP system is 5mA/m2for reinforced concrete structure in the severe marine corrosion area in Middle East.
Reason Analysis and Repair Measures of Cracked Die
Authors: Wang Jing , Wang Yong
Published: December 2013

The stress nephogram was obtained through analyzing the stress of die using the finite element software. Cause of die crack is determined from the stress nephogram, and repair plan is presented. The repair plan is analyzed by finite element and is validated by experiment.
Optimal Structure Design and Analysis of Pressure Hull for the Underwater Glider
Authors: Song Da Lei , Chen Li Ping , Wang Yong Fang , Wang Zhen Yu
Published: December 2013

Pressure hull is an important part of an underwater glider, on which the study was designed to ensure that it has sufficient strength and stability, the smallest weight, as well as the maximum internal deployment of space and load capacity. In order to find the best initial design solution of the pressure hull, this paper analyzes the design process of underwater vehicle systematically. After the shape and material selection of the main body and end cover, structural analysis and size optimization of pressure shell for autonomous underwater glider carried out by the finite element analysis tool Ansys Workbench, and the simulation results paves the way for the pressure test verification.
The Interaction of Mixing Odorants with Similar Chemical Properties: A Case Study on Ketone Compounds
Authors: Zhao Peng , Liu Jie Min , Tang Shi Chuan
Published: December 2013

To investigate more about the interaction of mixing odorants, a series of sensory tests were conducted using five ketones [butanone (Bu), 2-Pentanone (Pe), 2-Hexanone (Hex), 2-Heptanone (Hep), 2-Octanone (Oc)] at varying concentration levels. The determination of odor threshold (OT) was initially conducted by the triangle odor bag method (GB/T 14675, China). The odor activity values (OAVs) of individual odorants at a wide range of concentrations were derived from concentration-to-odor threshold ratios. The resulting data were then evaluated to define the empirical relationship for each ketone between the OAV and odor intensity (OI) scaling. Based on the relationships defined for each individual ketone, the OI values were estimated for a synthetic mixture of five ketones. The effect of mixing was then examined by assessing those estimated OI values with the actually measured OI values. The overall results of this study confirmed that the OI values of the synthetic mixture is not governed by the common theoretical basis (e.g., rule of additivity, synergism, or a stronger component model) but is best represented by the averaged contribution of all ketone components. Thus, the odor intensity (OI) of a given mixture sample containing odorants with similar chemical properties can be accessed through the conversion from its concentration value with the application of empirical equations instead of direct measurement by the human test panel.
The Research of Deceleration Strip Power Generation
Authors: Ren Jing , Xu Dong Dong , Zhang Yi Ping
Published: December 2013

At present, resources and environment situation is not optimistic in our country, therefore, the 11th five-year plan outline points out "energy conservation and emissions reduction. The use of solar energy, wind energy, hydrogen and other clean energy power generation technology continues to advance, at the same time, the use of idle energy for power generation is increasing attention. When the car passes through the deceleration strip, it can make the idle energy into power, which is very much in line with the concept of energy saving and emission reduction. This article will introduce the present situation and development prospect of road deceleration strip to generate power.
Quantitative Analysis of Influence of Cab Package Parameters on Driving Posture
Authors: Yao Jian Hui , Wang Zhan Rui , Lu Qi
Published: December 2013

In this research, a virtual cab package model had been established in CATIA which was used for driving posture prediction in RAMSIS. 40 cab package schemes and the corresponding driving postures could be acquired by adjusting the parameters of the steering wheel, the clutch pedal and the seat. The quantitative analysis between cab package parameters and driving posture was researched using regression method. And the regression functions that clearly express the relationship between them were concluded, which could be used for directing the design and optimization of the cab package schemes.
Optimal Design of Steering Geometry Using Genetic Algorithm Based on Binomial Weight Function
Authors: Wang Jin Hai , Yang Jian Wei , Zhu Wan He
Published: December 2013

For integral steering geometry, its spatial structure rationally is simplified. Based on it, mathematical model of integral front steering geometry that is similar with the reality of elastic tires is built. For ensuring design variables, the target function model is established by the inner wheel steering angle of rotation absolute error and binomial weight function. And the problem is optimized using the Genetic Algorithm in MATLAB. Finally, optimization algorithm is verified by a real example of optimization of econopower car.
Numerical Analysis on Protective Effectiveness of Composite Blast Walls against Blast Wave
Authors: Li Zhi Zhong , Tang De Gao , Liu Zheng , Xue Yu Long , Li Wei Wei
Published: December 2013

For the comparative analysis of composite blast walls on the protective effects of blast wave, Overpressure protective effectiveness coefficient was put forward to analyze protective effectiveness and . It was studied that Protective effectiveness of composite blast walls under blast waves using 3D numerical simulation method and analysis of the amount of drugs, explosive distance, height and other structural parameters on protective effect of composite structures. The influence of several factors on forecasting formula was analyzed, such as scaled blast distance and scaled height of wall. Via fitting the simulation results overpressure formula of the back of composite blast walls was obtained. The result indicate that protective effectiveness of composite structure increases when walls height increases or scaled blast distance decreases.
Analysis of Satellite Coupled Dynamics Simulation Based on the Virtual Lab
Authors: Zheng Wen
Published: December 2013

Based on the Virtual. Lab software, this paper used multi-rigid body dynamics and soft multi-body dynamics theory as the foundation to establish the satellite coupled virtual prototype model including rotary table, rotating arm and the antenna. The simulation model is used to analyze the influence of the flexible rotary arm body on the satellite and obtain the rotating arm stress and deformation under the coupled conditions, which provides theory basis for the satellite design, the material selection of satellite rotary arm and other key component, and strength check under coupling dynamic load conditions. At the same time, this provides data support for the fatigue reliability research of future satellite key component.
A Research on Nondestructive Testing to the Metal Welding Residual Stresses by the Laser - Generated Ultrasonic
Authors: Li Hai Tao
Published: December 2013

Because the local weld of the metal is affected by high temperature in the welding process, every temperature is always uneven after the completion of welding. so in the cooling process, the temperatures of the different dots cause different contractions .This situation will lead to internal forces. These forces will eliminate external variant part outside, but the internal residues still exist. They are the welding residual stresses. This paper mainly introduces the principle of laser ultrasonic nondestructive testing technology and laser ultrasonic nondestructive testing technology about the application and research of the residual stress in metal welding.
The Simulation Research of Campus Network Technology Based on IPv6
Authors: Zhao Li Zhen , Yang Fan , Zhao Yu Ming
Published: December 2013

Aiming at the issues of smooth transition from IPv4 to IPv6 and interoperability in technical coexistence period about campus network, discussing the technical characteristics of IPv6 protocol, GNS3 and OPNET simulator, combined with the status of weakness of IPv6 technology, lack of IPv6 technology planning and financial support for network upgrade in the vast majority of colleges, adopted the simulation methods to build a network model of IPv4 and IPv6 to achieve the technologies study such as topology design, network configuration and testing, network performance design and evaluation of IPv6 campus network under the low-cost conditions.
Library Information Service in the Web3.0 Environment
Authors: Long Bin , Cheng Li Ping , Zhang Yang
Published: December 2013

Based on the brief introduction of the Web3.0, this paper proposes the features and ways of the “user-driven” information service in the Web3.0 environment.
Automotive Reclaiming Energy Vibration Reduction System Based on Electric Control Rectifying Valve
Authors: Zhang Bin Tao
Published: December 2013

With the automotive popularization, energy dilemma and environmental problems are further severe. Now the mechanic vibration energy recovery devices which have been invented could not break the bottleneck of low energy recovery efficiency and bad high frequency response. This system is based on hydro-electric reclaiming energy vibration damper electric control rectifying valve with independent intellectual property rights, and is composed with electrical and hydraulic multi-system, converting the automobile suspension vibration energy to electric energy to recycle. Compared with the same kind products, this system avoids their shortcomings and has great advantages. Through automatic and accurate rectification control on liquid flow, the system is able to improve system high-frequency response characteristics, reduce system energy loss, and enhance the system working reliability. This paper will present Automotive Reclaiming Energy Vibration Reduction System Based on Electric Control Rectifying Valve in 7 parts.
Crystal Structure and Fluorescence of 4,4'-(o-Benzonitrile) Divinylbenzene
Authors: Li Yu Feng
Published: December 2013

4,4'-(o-benzonitrile) divinylbenzene compound was synthesized by Wittig-Homer reaction. Its crystal structure was determined by X-ray diffraction method. The fluorescence properties of the title compound in acetone solvents were investigated.
Automatic Temperature Control System Based on MSP430
Authors: Zhang Jian Jun
Published: December 2013

In this paper, we discuss the temperature control system of thermoelectric cooler. It is controlled by MSP430F149. We achieve the sample temperature by using Pt100 resistance. We make the temperature controlled by using the cooling chip. We can set the temperature, display the working status and draw real-time temperature curve by using the keyboard and LCD.
Research on Information Hiding Based on XML Document
Authors: Wang Xiao Feng
Published: December 2013

This paper designs and implements an information hiding algorithms by using the equivalent characteristics of attributes and sub-elements in the XML document. Experimental results show that the algorithm has large information hiding capacity, better hiding features and robustness.
Design of Distributed Indoor Air Quality Remote Monitoring Network
Authors: Zheng Zheng Bing
Published: December 2013

Aimed at the characteristics of indoor application environment, a real-time wireless monitoring system for indoor air quality based the nRF24L01 and GSM network was proposed. The system built the star subnet structure with nRF24L01 wireless module, used GSM module SIM300 to complete wireless communication between the subnet and GSM network, and achieved GSM network users to remotely monitor indoor air quality. The subnets with master-slave structure mode, which was constituted by the control terminal and multiple data collection terminals, implemented indoor air quality concentration and temperature and humidity data real-time acquisition with the centralized control method. The experimental results show that the subnets can real-time finish wireless data transmission within a distance of 700 meters, and the system with simple structure and stable work can realizes real-time monitoring of indoor air quality.
Electric Power System Monitoring Unit Design Based on ZigBee Network
Authors: Yang Yang , Wang Yong Zhi
Published: December 2013

With the development of the Internet and relative information technologies, more and more requirements are urgently needed by power system monitoring unit. By analyzing traditional wired power system monitoring unit, this paper elaborates on power system monitoring unit based on ZigBee, focusing on the design of monitoring node, including both hardware and software. And this paper completely discusses suitable solution for wireless power system monitoring unit, hardware and software design of the systems nodes for collecting and coordinating, and a right project for wireless power monitoring system.
The Research of High-Level Modulation in Visible Light Communication
Authors: Hao Zi Qiang , Li Hong Zuo , Zhao Ting
Published: December 2013

Visible light communication system using light emitting diode as light source, the system has the dual role of lighting and communication, thereby greatly saving energy .The bandwidth of LED modulation is a major obstacle to development of VLC technology. Researchers have put forward a variety of techniques to extend the modulation bandwidth and improve the transmission rate, such as Blu-ray filtering, equalization, multiple-input multiple-output (MIMO) technology, high ray modulation format, the wavelength division multiplexing technology, discrete multi-tone modulation and so on. The transmission rate of VLC system can be greatly improved by a combination of these techniques in a technical or several techniques. This paper analyzes the effect of OFDM technology each sub-carrier modulation with MQAM to visible light communication. It gives a brief introduction of the visible light communication system; it also shows the average power spectral density and error rate from SIMULINK simulation. It proves further the high-level quadrature amplitude modulation (MQAM) with higher bandwidth efficiency and smaller error rate, the bandwidth efficiency of 256QAM modulation is the twice of 16QAM modulation.
Design and Implementation of Web Instant Communication System Based on Web 2.0
Authors: Gao Wei Chun , Jiang Wu Xue , Gao Wei Hai , Liu Jun Fan , Chen Jin Chuan
Published: December 2013

The self-organizing thought of the network resource based on Web2.0 can innovatively combine the web page and instant communication, realize the function for the normal user to add, find and enter into the chat room for any web page at the client side, and the users browsing the same URL and website can enter into the same chat room to communication, thus providing the communication place for all users visiting the same web page and achieving the aim to improve the visitor activity, user viscosity and visitor conversion rate of the site.
Physiological Signal Detection Instrument Based on FPGA
Authors: Zhan Hua Qun , Xu Bin , Cao Yong Ping , Liu Quan Jiang
Published: December 2013

This paper introduces a kind of physiological signal detection instrument based on FPGA. The system uses FPGA as the core, SC0073 as the sensor, the signal amplification, filtering, A/D conversion, and finally the signal does a digital signal processing in FPGA , and under the control of FPGA, displayed on the LCD screen in time. Results show that the system is stable and have a good performance.
PID Control Based on Kalman Filter for DC Motor
Authors: Chen Kan
Published: December 2013

The noise signal caused by measurement and observation seriously affected the control quality in PID control of DC motor. A PID regulation technology was proposed which was based on Kalman filter. The system state was estimated by the Kalman filter so that the measurement and observation noise signal was inhibited thus resulting in the system performance improved. The designed controller was dynamically simulated in MATLAB. The results showed that the noise signal existed in the system was effectively filtered by PID regulation technology with Kalman filter so that the system performance was improved.
Effects of Y Alloying on Thermal Stability and Corrosion Resistance of Cu-Zr-Al Metallic Glass
Authors: Liu Yi , Wang Yan Fang , Xiao Li Jun , Liu Ming Xing , Shi Zhi Qiang
Published: December 2013

The (Cu50Zr45Al5)100-XYX(x=0, 1, 2, and 3) alloys samples were prepared by copper mold suction casting method. The effect of the addition of Y on the structure, glass-forming ability, thermal stability and corrosion behaviors of the base BMG (Cu50Zr45Al5) were investigated by means of XRD, DSC, DTA and electrochemical polarization. The results showed that Cu10Zr7and Zr2Cu phases are precipitated when Y addition exceeds 3at%, otherwise the alloys are fully amorphous state. Minor addition Y improved the thermal stability of the base alloy. The corrosion resistance of BMG alloy is deteriorated in 3.5% NaCl solution with addition of Y element as indicated by the corrosion potential and corrosion current density.
The Design of Flexible Manufacturing System Design Based on Fieldbus
Authors: He Fang
Published: December 2013

Control system is a very important part of flexible manufacturing system, But the disadvantages of traditional FMS communication network is getting more and more can't meet the need of the high-speed development of flexible manufacturing system technology, the real-time and the high efficiency of the communication system, this paper puts forward the fieldbus network used in flexible manufacturing system. By means of field bus communication technology to realize flexible manufacturing system, set up the master station and slave station in the system, multi-level real-time management, the reliability of the system has been greatly improved.
Study on Energy Saving PID Control of HST Tele-Control Vehicle
Authors: Chen Jian Hua , Mu Xi Hui , Du Feng Po , Lv Kai
Published: December 2013

Based on the analysis of power matching between diesel engine and HST, a simulation model was built by AMEsim. By using of simulation, the result of speed characteristic in closed loop feedback system was analyzed. The results show that power matching and joint control between diesel engine and HST is an effective way to improve the vehicles matching identity and ensure its working point in the economic region.
Building Data Analysis Platform for Intelligent Library Services Based on Cloud Computing
Authors: Zhang De Xiang , Liu Xun , Hu Bing Liang
Published: December 2013

To build intelligent library service, a platform for data analysis is essential. In this paper, we are trying to build a platform, and to study possible application of such a Big-Data platform.
Research on Point Cloud Data Management Based on Spatial Index and Database
Authors: Li Jian , Fang Hong Yuan , Ma Yu Rong , Yang Hai Bo
Published: December 2013

Laser point set has a massive quantity of data, which not only increases system load, but greatly reduces the follow-up processing efficiency as well. Considering the difficulty of mass point cloud data organization and management, grid index of point cloud data based on the decimal linear quadtree is proposed in this paper, point cloud data is segmented and encoded by means of linear quadtree based on decimal system, which will be stored in SQL Server, then, we can block and index point cloud in terms of Morton code or rectangular region, combine with the advantages of both spatial index and database to manage point cloud efficiently and safely. The results show that the proposed method ideally solves the problem of point cloud data organization and management.
Design and Optimization of Java Technology Module Based on Working Process Systemization
Authors: Jiang Wu Xue , Hu Xuan Zi , Gao Wei Chun , Li Ming Chao
Published: December 2013

At present, Java technology is the most popular technology in IT industry. Concerning the IT talents, Java technology belongs to the serial professional technology with the most industrial employment competitiveness, and the working process systemization is the most effective training mode to cultivate IT talents. In this paper, a set of Java technology modules were designed and optimized with the theoretical guidance of the working process systemization, and the modules mainly included Java, JavaScript, XML, Java Web and JavaEE. The series of modules follows the action-oriented cognitive rules with a good operability. Moreover, it can effectively enhance the industrial employment competitiveness of the IT talents, and have a great practical application value to cultivate and improve the skills for IT talents.
Algorithm Analysis and Achievement for Function Module of Online Testing System Based on Web
Authors: Fu Xin , Fu Shuai
Published: December 2013

With rapid development of internet, various applications based on internet are increasingly highlighted. In the teaching of quality and technology supervision system, there are more and more businesses to use computer and the theory can be combined with practice to complete work with strong profession including inspection and enforcement. It requires staff in the system to learn theoretical knowledge and practice a lot to master knowledge really and play a role in practical application. In the current education and assessment mode, real level of staff cannot be assessed really. In terms of level in the practice aspect, it cannot guide staff to learn these courses with effective means. The online testing system based on Web comes into being under the circumstance. It gradually develops with network technology and database technology. It can test staff at any time with the network, stretching traditional testing room; in addition, network resources can be utilized effectively to service quality supervision cause in a better way.
Deep Web Database Selection with Classification and Rich Features
Authors: Dong Yong Quan , Ling Ping
Published: December 2013

The Web has been rapidly deepened by many searchable databases online, where data are hidden behind query interfaces. There may be hundreds or thousands of Web databases providing data of relevance to a specific domain on the Web. In the face of these large-scale Web databases, the core problem is to select the most appropriate ones to a users query. While this problem has received more attentions recently, current approaches still have the simplified and empirical limitations. In this paper, we propose a Web database selection approach based on classification. We cast Web database selection as a classification problem and combine multiple kinds of features which are about the query and Web databases. We use the classification model to obtain the relevancy of every individual Web database for a user query and select top-K ones to provide the query results. Experiments show that our approach yields high performance.