bluuebunny/crossref_metadata_2025 huggingface dataset:
Impact of T8 Transgenic Rice Containing an Isopentenyl Transferase Gene on Soil Bacterial Biomass
Authors: Song Li , Zhao De Gang , Jin Dao Chao
Published: February 2012

The safety study of transgenic plants has an actual significance for creating new species and commercializing transgenic plants. Based on PCR and Southern blotting tests of transgene, the genetic stability of ipt gene in an advanced-generation of transgenic rice plants was studied. Use a plate colony counting technique, the influence of ipt rice plants on bacteria number of rhizospheric soil was investigated. Molecular detection showed foreign ipt gene was stable genetic in the genome of T8 transgenic rice with a single copy. The amounts of bacteria from the root soil of transgenic lines were distinct from non-transgenic controls during the tillering stage, heading stage and filling stage. Nevertheless, this variability was not significant during the growing season described above (P>0.05). These results reveal that T8-ipt rice cannot affect the soil bacteria biomass during plants field-growth.
Dynamic Properties of Engine Main Components
Authors: Yan Wen Bing , Pan Hong Xia , Jiang Shao Zhong
Published: February 2012

Based on the combination of modal analysis technology and finite element method (FEM), the modal parameters identification of the main parts of a diesel engine (crankshaft ,connecting rod and oil pan) were tested using hammer beat method and calculated by means of I-DEAS software. The natural frequency and shake mode parameters of the parts were identified. The results could provide basis for structure dynamic analysis and control of noise of the diesel engine.
Parametric and Controllable Shape Model of the Water-Lubricated Rubber Journal Bearing
Authors: Pang Xiao Ping , Chen Jin , Wang Jia Xu , Hou Yi
Published: February 2012

This paper describes a general bearing profile for the water-lubricated rubber journal bearing. Characteristics of the most popular water-lubricated rubber journal bearing, the straight fluted bearing, were deeply analyzed. The bearing profile was expressed using subsection function and a parametric and controllable shape model was built. By adjusting the parameters of the shape model, the existing bearing profiles can be integrated into the shape model and some bran-new bearing profile can be generated from the model. The rigid film thickness equation was achieved using the shape model and the relationship between the load capacity and the parameters of the shape model was established with the neglecting of elastic deformation effect. It is seen that the dimensionless load capacity reduces with the increase of the transition arc radius, the flute radius and the number of flutes,. The Necessity of the research on the bearing profile and the correctness of the shape model are validated. The parametric and controllable shape model is the foundation to study the fluid-solid coupling effect and to carry out the multi-disciplinary cooperating optimization for the water-lubricated rubber journal bearing.
Study on the Strategy for Failure Diagnosis of Wall-Flow DPF Based on Pressure Drop Characteristics
Authors: Bu Jian Guo , Yao Guang Tao , Zi Xin Yun , Zhang Wei Feng , He Jin Yong
Published: February 2012

Based on the study of diagnosis principle of OBD, this paper probes into the pressure drop characteristics of wall-flow DPF, puts forward the failure diagnosis strategy of DPF based on the pressure drop characteristics of DPF, and actual vehicle tests have revealed that the devised diagnosis strategy can accurately identify various failure faults of DPF.
Damage Identification of Beam Structures Based on Genetic Algorithm and Sensitivity Analysis
Authors: Huang Tian Li , Ren Wei Xin
Published: February 2012

Based on the damage scalar model and the sensitivity analysis of frequency and mode shape, the Combined Multiple Damage Location Assurance Criterion (CMDLAC) based on the change of frequencies and mode shapes was proposed. Then, the damage identification problem is transformed to the constrained optimum problem and the genetic algorithm (GA) is adopted for the damage localization of beam structures. At last, the numerical simulation results of a 3-span continuum beam structure verified the proposed method.
Viscous Property of Clay
Authors: Li Jian Zhong
Published: February 2012

Viscous property of saturated, wet, air-dried and oven-dried clay was evaluated by performing a series of one dimensional compression tests including primary loading, creep, global unloading and reloading tests. In the tests, axial strain rate was changed stepwise many times during monotonic primary loading at a constant strain rate. Test results show that viscous property of clay with different water content under different test condition is similar. In order to evaluate the viscous property of clay, parameter β was introduced basing on the present test results of clay and author’s previous study. β value of clay with different water content under different test condition varied from 0.034 to 0.064. Test results show that β value of saturated clay is generally larger than that of dried clay.
Two-Stage Optimal Design of Small Pile Composite Foundation Based on Consolidation Degree and Bearing Capacity Control
Authors: Tong Huai Feng
Published: February 2012

The optimal design theory of the post-processing technology of thick filling area is based on the characteristics of small non-sand concrete pile, to research the production and development process of stress and strain of foundation soil in the course of drilling and grouting, and thus to optimize the key technical parameters of the post-processing technology. In this paper, on the basis of the analysis of consolidation process and treatment mechanism of the post-processing under the conditions of saturated soft soil, the research of optimal design of the post-processing technology on the control of consolidation degree and bearing capacity is completed, which is of reference for the design and construction of the post-processing technology.
Synthesis and Property of a New Photochromic Diarylethene Bearing both an Isoxazole Unit and a Methoxy Group
Authors: Liu Hong Liang , Pu Shou Zhi , Cui Shi Qiang , Liu Wei Jun
Published: February 2012

A novel photochromic diarylethene based on isoxazole moiety was synthesized and its photochromic and fluorescent properties were also investigated. The compound exhibited remarkable photochromism, changing from colorless to purple after irradiation with UV light both in solution and in PMMA film. In hexane solution and in PMMA film, the open-ring isomer of the diarylethene 1 exhibited relatively remarkable fluorescence. The results indicated that the isoxazole moiety played a very important role during the process of photochromic reaction for the diarylethene derivative. Using this dithienylethene 1c as optical storage was performed successfully.
Numerical Simulation for Heat Storage Study of the Microencapsulated Phase Change Material Slurry in a Horizontal Rectangular Enclosure
Authors: Zhang Yan Lai , Rao Zhong Hao , Xie Jie Fei , Zhang Hong , Wang Shuang Feng
Published: February 2012

Two-dimensional numerical simulation of heat storage characteristics in a horizontal rectangular enclosure heated from below by natural convection has been investigated with the microencapsulated phase change material (PCM) slurry. Effects of PCM on heat storage and heat transfer are discussed, in which PCM slurry exhibits the pseudoplastic non-Newtonian fluid behavior and a peak value in the specific heat capacity with latent heat in phase temperature range. And their characteristics between the slurries with and without phase change of PCM are compared in the phase change temperature range. And vertical temperature distributions at the middle position are given. This paper shows streamlines and isotherms in the enclosure for phase change process.
Numerical Study of Performances of Vertical Axis Tidal Turbines
Authors: Liu Yan , Zhao Peng Fei , Su Xiao Hui , Zhao Guang
Published: February 2012

Numerical simulations of flows over two-dimensional vertical axis tidal turbines are carried out. Unsteady Reynolds averaged Navier-Stokes Equations are applied to model turbulent flows. Influence of the central shaft and number of blades on flow field and thus performances of turbines are investigated. Performances in terms of torque and power coefficients are obtained for different types of turbines. Results demonstrates that the central shaft has a negative influence on flow field and power coefficients. Solidity and tip speed ratio are two important factors to affect turbine’s performances. This paper provides useful information for future studies.
Research on Effects of Diameter and Arrangement of Nozzles on Combustion and Emissions in Cylinder
Authors: Li Jue , Lou Zi Rui , Hong Wei
Published: February 2012

Based on the YD4A75-C3 electronically controlled common rail diesel engine, using CFD simulation software, the combustion and emission’s behavior in cylinder was simulated on the numbers, diameter and arrangement of nozzles. The research results showed: in the condition of the certain total nozzle flow area, the proper nozzle numbers could improve fuel’s atomization quality and increase the uniformity degree of gas mixture. The staggered arrangement of nozzles could reduce interference and overlap among the adjacent fuel sprays and increase the air utilization and the space distribution of fuel, finally, the degree of mixing was increased obviously.
Efficient Synthesis and Photochromic Properties of a New Diarylethene Bearing a Condensed Aromatics Moiety
Authors: Wang Ren Jie , Xia Hong Ying , Liu Gang , Cui Shi Qiang
Published: February 2012

A new class of diarylethenes based on a hybrid structure of thiophene and naphthalene has been developed and its properties including photochromism, kinetics and fluorescence were investigated in detail. The results showed that the compound exhibited obvious photochromism, changing from colorless to red after irradiation with 297 nm UV light both in solution and in PMMA film. The kinetic experiments indicated that the cyclization/cycloreversion process of the compound was determined to be the zeroth/first order reaction in hexane solution. At last, the results demonstrated that the diarylethene compound had attractive properties for potential application in optical storage.
Numerical Simulation of Flow and Heat Transfer Characteristics in Rectangular Channel with Novel Longitudinal Vortex Generators
Authors: Min Chun Hua , Qin Ya Ju , Qi Cheng Ying
Published: February 2012

A novel combined longitudinal vortex generator, comprising a rectangular wing mounted with an accessory rectangular wing, was introduced and the turbulent flow and heat transfer characteristics of a rectangular channel with rectangular winglet pair and combined winglet pair were numerically analyzed. The effects of six parameters were examined. The results show that in the range of the present study, the increase of the six parameters can result in the increase of heat transfer and pressure drop. Specially, the pressure drop decrease at large value of the distance of accessory wing from the channel bottom. The effect of the main attack angle of the combined winglet pair is somewhat different to that of the rectangular winglet pair. The heating plate temperature of the channel with combined winglet pair is lower than that of the channel with rectangular winglet pair, and hence the heat transfer is enhanced.
Research on Mechanism of Sodium Silicate on Gas Quenching Steel Slag Cement
Authors: Long Yue , Xing Hong Wei , Zhang Yu Zhu , Li Gao Liang
Published: February 2012

The sodium silicate has activation function on the macroscopic mechanical properties and microscopic structure of the gas quenching steel slag cement. Research results show that: Under the activation of the sodium silicate, when the content of the gas quenching steel slag cement is 30% to 40%, acid Salt, Portland cement grade 42.5 can be produced. Even when the content of gas quenching steel slag is improved to 50%, slag Portland cement grade P·S·A32.5 can still be produced. Seen from the hydration products, the sodium silicate reacts with the ions in the gas quenching steel slag, on one hand, initial framework is formed to enrich the network structure; and on the other hand, in the hydration process, a large number of C-S-H gel, ettringite crystal and a small amount of Ca (OH)2are formed, which improves the strength of cement.
Allelopathic Potential and Chemical Components of Aqueous Extract from Soil-Like Substrate
Authors: Li Le Yuan , Xie Bei Zhen , Fu Wen Ting , He Wen Ting , Liu Hong
Published: February 2012

. Rice and wheat are the traditional food for Chinese people, as well as the main crop candidates for space bioregenerative life support systems. Recycling of inedible parts of rice and wheat is an important issue concerning the system. In order to determine whether the mixed-substrate of rice and wheat’s inedible parts is suitable for plant cultivation, soil-like substrate made from rice and wheat was tested in an aqueous extract germination experiment. The effects of different concentrations of aqueous extract on seed vigor, seedling growth and development situations and the physiological and biochemical characteristics of wheat, lettuce and pumpkin were studied, and the presence and degrees of allelopathic effects were analyzed. The test results show that this type of soil-like substrate can exert different degrees of allelopathic effect on wheat and lettuce; this allelopathic effect is related to the concentration of soil-like substrate aqueous extract. With the increase of extract concentration, the seed germination, root length and shoot fresh weight of wheat decreased; and every concentration of aqueous extract showed significant inhibition on the root length and root fresh weight of lettuce. However, this type of soil-like substrate showed few effect on the growth of pumpkin seedlings. Content changes of chlorophyll and endogenous hormones in wheat and lettuce seedlings, and the chemical compositions of soil-like substrate were measured. Besides, the mechanism of allelopathic effect was analyzed.
Kinetics and Selectivity of Cyclohexane Pyrolysis
Authors: Zhang Sheng Jian , Zhao Ying Xian
Published: February 2012

Pyrolysis of cyclohexane was conducted with a plug-flow tube reactor at 873 K. The data of feed conversion fit first-order kinetics adequately, giving the apparent rate constant of 0.0092 s-1 . A chain mechanism of free radical reactions is proposed to interpret consumption of cyclohexane by four processes: homolysis of C-C bond (Path I) and homolysis of C-H bond (Path II ) in reaction chain initiation, H-abstraction of various radicals from feed molecule in reaction chain propagation (Path III ), and the process associated with coke formation (Path IV). The reaction path probability ratio of X I：X II：X III ：X IV was 0.5420: 0.0045 : 0.3897 : 0.0638.
Electrical Treeing Breakdown Properties for Polyimide Nanocomposite Film in Inverter-Fed Motors
Authors: Cui Yi , Wu Guang Ning , Zhang Yi Qiang , Xin Zheng Liang , Luo Yang
Published: February 2012

The failure of magnet wires used in inter-turn insulation of inverter-fed motor winding is the main cause which leads to the motor insulation breakdown. This paper conducted electrical tree breakdown experiments on magnet wire insulating film (FCR 100) used in the inter-turn insulation of JD117 inverter-fed motor and meanwhile combining with energy spectrum analysis and scanning electrical microscope (SEM), by which type and content of elements, breakdown main body and electrical tree channel could be clearly observed, the corresponding failure mechanisms were analyzed. The experiment results reveal that all the breakdown main bodies are located at the pointedness and insulation joint of magnet wires, of which dielectric strength is relatively lower; they are the insulation “weak point”, which should be paid enough attention and strengthened at the manufacturing period. The electrical tree breakdown time is quite long and the life span of magnet wire is 11 hours. The electrical breakdown strength of envelope is very low when containing metal impurity. It is also found that the aluminum occupies the highest content tested by energy spectrum analysis.
Preparation and Properties of Modified Starch with Methoxy Polyethylene Glycol Methacrylate
Authors: Lv Sheng Hua , Rui Gong , Zhang Guo Yun
Published: February 2012

The modified starch surfactant was synthesized by grafting copolymerization of methoxy polyethylene glycol methacrylate (MPGM) with starch. The effects of monomers composition and side chain length on surface activity of starch surfactants were investigated. The modified starch surfactant was synthesized when the molar ratio of AGU (starch) and MPEGMA was 1: 0.3 at 85 °C for 2h. The FTIR result shows that starch had successfully reacted with MPGM. Modified starch surfactants are poor foam surfactant with excellent surface activity. The modified starch surfactants are biodegradable and environmentally friendly and may be extensively used in various fields in future.
Numerical Simulation of Heat and Mass Transfer of Lump Coal Falling in the Freeboard Zone of COREX Melter-Gasifier
Authors: Pan Gang , Liu Xun Liang , Wang Gan , Wen Zhi
Published: February 2012

. A one-dimensional mathematical model was developed for describing heat and mass transfer process of lump coal falling in the freeboard zone of COREX melter-gasifier. The temperature distribution, law of moisture evaporation and removal of volatile of lump coal were obtained. Further more, the effects of operating parameters on heat and mass transfer phenomena of lump coal were studied.
Study on Extraction of Shikimic Acid from Pine Needles of Pinus Elliottii Engelm by Means of Microwave Pretreatment
Authors: Xie Ji Yun , Lan Jun Feng , Yu Lan , Wu Chun Mei
Published: February 2012

The aim was to provide scientific basis for development and utilization of pinus elliottii engelm resources.As the raw material, pines needles of pinus elliottii were moistened first by vaporization medium. After that, the needles were processed in advance by microwave to change tissues of needles, and finally, the Shikimic acid was extracted from the needles in hot water. Meanwhile, the extraction method is compared with traditional one in the paper. As a result, the perfect technological conditions were gained for extraction of Shikimic acid by microwave preprocessing. The method is: moistening pine needles within 15 minutes in 70% ethanol water which was 1.6 times weight of needles, then, processing the needles for 60 seconds by 70W microwave. The processing time should increase 30 seconds every 5-gram material added. Finally, the extraction lasted over 30 minutes adding 25-time hot water at 80°C. Seven eighths of extraction time by microwave preprocessing is shortened compared by the traditional extraction method, and extraction ratio for Shikimic acid raises by 35.8%.
Preparation and Characterization of Cuprous Chloride Catalyst for Direct Synthesis of Triethoxysilane
Authors: Wang Guang Jian , Zhang Feng Xia , Liu Guang Yan , Liu Xiao Na
Published: February 2012

This work presents a novel method for the synthesis of cuprous chloride (CuCl) catalyst. The CuCl powder is prepared by one-step cocurrent flow reaction of CuSO4·5H2O with NaCl in a thermostatic water bath at different reduction temperatures of 45 °C, 50 °C and 60 °C. Sodium bisulfite and sodium carbonate are fed in parallel into a flask in 40 to 60 minutes and with a mole ratio of 4:1. Thereafter, the prepared powder is characterized. The result of X-ray powder diffraction (XRD) shows that the powder consists of CuCl with well crystallization. Scanning electron microscope (SEM) images indicate that the morphology of the samples exhibits a regular 2D flake structure. In addition, results of BET and BJH methods show that the CuCl powder has a larger surface area. The CuCl catalyst is used for the reaction of silicon with ethanol to produce triethoxysilane and tetraethoxysilane and thereby its activity is evaluated. It is found that the reaction selectivity to triethoxysilane depends on the amount of the catalyst. Finally, based on the results obtained the reaction mechanism on the silicon surface is proposed.
Conductomery Properties of Mixed Reverse Micelles with Amphiphilic Ionic Liquids
Authors: Liu Jin Yan , Liao Yong Juan , Li Hai Chao
Published: February 2012

The conducting properties of mixed reverse micelles formed with amphiphilic ionic liquids (DomimBF4) and cetyltrimethylammonium bromide (CTAB) have been investigated, with the emphasis on the effect of cosurfactants, surfactant compostion. In DomimBF4/CTAB/ n-butanol/ cycloheane system, a percolation in conductance phenomenon was observed, the percolation threshold Wp depends upon the content of DomimiBF4. The influence of cosurfactants on the conductomery properties of mixed reverse micelles was studied in detail.
Fabrication of Lignin-Wrapped Carbon Nanotubes and its Dispersion in ABS Resin
Authors: Ge Xian Xun , Qiu Jia Hao , Xu Sha Sha , Yue Feng , Song Pin Gan
Published: February 2012

In the presented work, the carbon nanotubes (CNTs) were successfully wrapped with alkli lignin. Both transmission electron microscope (TEM) and scanning electron microscope (SEM) observations show that the CNTs are coated with a layer of lignin, which is also verified by Raman spectra. SEM images demonstrate that lignin-wrapped CNTs (lignin-w-CNTs) can more uniformly dispersed in ABS matrix relative to pristine CNTs. Moreover, compared with CNTs and lignin, incorporating lignin-w-CNTs results in slightly higher tensile stress at the same loading level.
Research on Rechargeable Lithium Manganese Battery Material Electrochemical Roasting Performance Analysis
Authors: Xiang Qian
Published: February 2012

As anode material of battery, manganese dioxide has been widely used in zinc-manganese and lithium–manganese primary battery. To meet new electrical products’ requirements on high-performance battery, research on rechargeable lithium manganese button batteries with extensive operating temperature, superior-performance comprehensive electrochemistry and low cost has drawn attention from more and more researchers. This article has analyzed physical and chemical properties of lithium manganese composite oxides synthetic material, assembled lithium button batteries by synthetic sample and lithium aluminum alloy and discussed its electrochemistry performance, based on confirmed material proportioning, discussed the influence of roasting condition on synthetic material performance from physical & chemical properties and electrochemistry properties, and confirmed best roasting temperature and roasting time.
Synthesis of 1-(4-Antipyrine)-3-(3-Nitroaniline)-Triazene and its Color Reaction with Mercury(II)
Authors: Chen Wen Bin , Ma Wei Xing , Xu Xing You
Published: February 2012

The synthesis of a new triazene reagent 1-(4-antipyrine)-3-( 3-nitroaniline)-triazene (ANTA) and its color reaction with Hg (Ⅱ) was studied and a new spectrophotometric method for the determination of Hg (Ⅱ) was established. The results showed that in the presence of micromulsion Tween-80, ASTA could reacted with Hg ( Ⅱ) to form a red stable complex of which the molar ratio of reagent︰metal was 2︰1 in Na2B4O7-NaOH medium.. The maximum absorption peak of the complex was located at 495 nm with the apparent molar absorption of 3.8 ×105 L·mol-1·cm-1. Beer′s law was obeyed in the range of 0.32～10 μg/10 mL for Hg ( Ⅱ) and the detection limit was 0.10 mg/L. Many ions did not interfere the colour reaction system due to the existence of ammonia. This method was applied to determination of Hg (Ⅱ) in lead-zinc ore samples, and the results were in accordance with those obtained by AAS method. Recovery was in the range of 103.0～103.2 % and the RSD(n=6) was not more than 4.6%.
QSPR Studies on n-Octanol/Water Partition Coefficient of Polychlorinated Biphenyls by Using Artificial Neural Network
Authors: Jiao Long
Published: February 2012

Quantitative structure property relationship (QSPR) model for predicting the n-octanol/water partition coefficient, Kow, of 21 polychlorinated biphenyls (PCBs) was investigated. The structure of the investigated PCBs is mathematically characterized by using molecular distance-edge vector (MDEV) index, a topological index which is developed based on the topological method. The calibration model of Kow was developed by using radial basis function artificial neural network (RBF ANN). Leave one out cross validation was carried out to assess the predictive ability of the developed QSPR model. The R2 between the predicted and experimental logKow is 0.9793. The prediction RMS%RE for the 21 PCBs is 1.92. It is demonstrated that there is a quantitative relationship between the MDEV index and the Kow of the 21 PCBs. RBF ANN is shown to practicable for developing the QSPR model for Kow of PCBs.
Carbon Dioxide Reforming of Methane over Ni/Mo/La2O3-SBA-15 Сatalyst
Authors: Huang Jian , Huang T. , Rongzhang A. , Huang Wei , Ma Ren Xiong
Published: February 2012

Carbon dioxide reforming of methane over Ni/Mo/ La2O3-SBA-15 was studied. The catalyst was characterized by N2 adsorption, X-ray diffraction, H2-TPR,CO2-TPD and TG-GTA analysis. The results indicated that the introduction of an appropriate amount of La2O3 exhibited a higher activity and stability. In the long term stability test, La2O3 impregnated Ni/Mo-SBA-15 gave the highest conversion and stable activity at 800°C for 250 h. The effect of La was suggested to be due to its lower tendency to carbon deposition. Characterization results showed a strong interaction between La and Mo or Ni which facilitated the improvement of catalytic performance.
A Study on Nox Reduction of SCR System in Heavy-Duty Diesel Engine to Achieve the Euro V Emission Limits
Authors: Zhi Xin Yun , Huang Li Ping , Pang Hai Long , Zhang Chun Run , Li Hao , Deng Cheng Lin
Published: February 2012

This paper presents the experimental studies on an SCR system for a mobile heavy-duty diesel engine to reduce NOx emission below Euro V emission limits. The test results obtained by one engine serving in China show that NOx emission was reduced to 1.81 g/kWh with ESC and 1.66 g/kWh with ETC, the reduction efficiency of NOx was reduced by about 80%, while the average NH3 slip is kept below 6 ppm.
Dielectric Relaxation Studies of the Fast Lithium-Ion Conductor La2/3-xLi3xTiO3 (x=0.06, 0.11)
Authors: Wang Wei Guo , Fang Qian Feng , Hao Gang Ling
Published: February 2012

The diffusion processes of lithium ions in La2/3-xLi3xTiO3 (x=0.06, 0.11) compounds were investigated by dielectric relaxation method. Prominent relaxation dielectric loss peaks, peaks P1 and P2 in La0.56Li0.33TiO3 and peaks P3 and P4 in La0.61Li0.18 TiO3, were observed. From the shift of peak position with frequency, the activation energy of 0.36~0.42 eV and the pre-exponential factor of relaxation time in the order of 10-14 ~ 10-13 s were obtained if one assumes Debye relaxation processes. The activation energies of lithium ion diffusion in La2/3-xLi3xTiO3 compounds and the characteristic vibration frequency for the ionic hopping motion are higher than those measured by 7Li nuclear magnetic resonance (NMR) spectroscopy and that of the typical phonon frequency (about 1013Hz). These values of relaxation parameters strongly suggest the existence of interaction between the relaxation species (here lithium ions or vacancies). Basing on the coupling model, the decoupled relaxation parameters of the dielectric relaxation peaks is: P1 (0.14 eV, 2×10-13 s), P2 (0.25 eV, 1.8×10-13 s), P3 (0.17 eV, 4×10-13 s) and P4 (0.3 eV, 2.7×10-13 s). These decoupled parameters are very close to the NMR measurement results and the reciprocal of the typical phonon frequency. Judging from the relaxation parameter of the peaks and combining with the crystallographic characterization, it is suggested that the P1 (P3) and P2 (P4) peaks are associated with the lithium ion diffusion in the ab planes and between the adjacent ab planes, respectively.
Analysis on Organization Networking Logistics Enterprises and Service Value Creation
Authors: Chen Yong Ping , Jiang Ning
Published: February 2012

Organization networking is the development trend of modern enterprises management models, which is the new viewpoint on value creation of modern logistics enterprises. Through analysis on the meaning of logistics organization networking, the paper expounds the background and characteristics of organization networking. The paper is based on the viewpoint of organization networking. The aim is to contribute to the core competence promotion of logistics enterprises and obtain more value creation.
Study on Task Allocation Model of Forest Fire Fighting
Authors: Liu Fa Lin , Wang Li Juan
Published: February 2012

Firefighting task allocation is the core of the forest fire fighting programs. Making use of information entropy method, combined with the fire brigades, fire fighting capability, difficulty and other factors, an analysis in the priority under the conditions of multiple fire sites and fire lines is made, so as to build up fire fighting mission efficient matrix and determine the optimal allocation scheme by using ant colony algorithm. The practice shows that this task allocation model for forest fire fighting under multiple fire sites situation is feasible and practical.
Research of Personnel Orientation System of Mine Based on ZigBee Technology
Authors: Liu Ke , Wang Hua Jun , Lu Han Yu , Yao Pan Pan
Published: February 2012

Analysis a new generation of wireless communications technology ZigBee, a ZigBee technology based on the staff and positioning system. the wire and wireless combined, the use of fixed and mobile sensors node can be realized for the position. by the members of the real software, the upper machine to the staff of the information collection, analysis, showing, data collection. Experiments indicate the system can get the exact location and staff for the monitoring of staff in decision making and provide data.
Integer-Coded Genetic Algorithm for Trimmed Estimator of Multivariate Linear Errors in Variables Model
Authors: Cao Hui Rong , Wang Fu Chang
Published: February 2012

The multivariate linear errors-in-variables (EIV) model is frequently used in computer vision for model fitting tasks. As well known, when sample data is contaminated by large numbers of awkwardly placed outliers, the least squares estimator isn’t robust. To obtain robust estimators of multivariate linear EIV model, orthogonal least trimmed square and orthogonal least trimmed absolute deviation estimators based on the subset of h cases(out of n)are proposed. However, these robust estimators possessing the exact fit property are NP-hard to compute. To tackle this problem, an integer-coded genetic algorithm that is applicable to trimmed estimators is presented. The trimmed estimators of multivariate linear EIV model on real data are provided and the results show that the integer-coded genetic algorithm is correct and effective.
The Security and Application of the RFID-Based Vehicle Security Monitoring and Administration System of the Internet of Things
Authors: Chen Bing , Tan Cheng Xiang , Dai Yue Bo
Published: February 2012

With the development of the technology and industry of the Internet of Things, the application of the Internet of Things of government and industry has been one important subject for the further development of information construction in China. The paper presents the RFID-based vehicle security monitoring and administration system of the Internet of Things in order to assure the real-time monitoring and security administration in the process of the vehicles going and coming through the gates and the vehicle’s united administration, and designs the security implementation framework of the application of the Internet of Things, and discusses the key technology including super high frequency RFID and boundary security network gateway, and the system and the key technology can broadly apply to the united security monitoring and administration of many vehicles such as buses, cars, trains, and the system of the Internet of Things has been primary implemented and achieved good effects in actual applications.
Inner System Design of a Nonlinear Plane Based on Extended Linearization Model
Authors: Li Qiu Ju , Liao Ni Huan , Gong Lu Hong
Published: February 2012

In order to deal with the control of a rigid spacecraft, a general technique to design advanced controllers for electrical transfer inner system of nonlinear plane was given, based on the generalized extended linearization model and symbolic language of Matlab. And the system with feedback-control-loop is equal to a linear system basically. Finally the corresponding linear system transfer function is given and the result of simulation has proved the specialties of this control method through the system indentification.
The Application of Visualization Technology in Advancement Degree of Difficulty Computing Process
Authors: Zhang Gang , Yang Hai Cheng , Jing Xiao Chuan , Wang Xiao Yin
Published: February 2012

In order to avoid the subjectivity and limitation of advancement degree of difficulty evaluating method based on lists, a visualizing method which applies the visualization technology in advancement degree of difficulty computing process is proposed. This method takes the improved technology readiness level assessing result of the technology to be assessed as the input of the visualizing process, and visualizes the readiness status of the technology to a two-dimension coordinate graph. The area which denotes the advancement degree of difficulty of the technology developing from one readiness level to a higher readiness level is shown in the coordinate graph. A computing formula is established to get the advancement degree of difficulty of the technology. The experimental results show that the proposed visualizing method can get the difficulty degree of the technology developing from one readiness level to another readiness level objectively and accurately.
Research in the Design of the Fuzzy Controller Intelligence of the Measuring and Controlling Apparatus on Water-Content in Material Pulp
Authors: Xia Guo Hong
Published: February 2012

In the course of producing material pulp, water-content (or the density of material pulp) is a very important process parameter. There are many elements which affect the water-content of material pulp, therefore it is very difficult to build precise mathematical module. In the meantime, the control system is nonlinear and retarded. For such control systems, the classical control system and modern control system is always hard to be applied, but fuzzy control can usually gain good results. This paper briefly illustrates the basic composing frame graph of the fuzzy control system of the automatic measuring and controlling apparatus on water-content in material pulp. We design the fuzzy controller of the automatic measuring and controlling apparatus on water-content in material pulp from these aspects: from the fuzzification of the sendout values, the rules of fuzzy reasoning, the adjustment of fuzzy control rules through the principle of double-factor self-organized fuzzy control, and the précising of the input values, and etc., and give the program frame graph of the fuzzy control algorithm. The successful application of the Intelligence Measuring and Controlling Apparatus on water-content proves that the design of the fuzzy controller is reasonable.
Pretreatment of Waste Fermented Liquid of Butanol by Flocculation
Authors: Sun Ze Zhan , Sun Jiao , Cheng Li Jun , Quan Hong En , Kang Yong
Published: February 2012

In order to reduce the environmental pollution caused by waste fermented liquid of butanol and recyle the high protein in it, inorganic polymer coagulants were used in pretreatment of this wastewater. It was demonstrated that poly aluminium chloride (PAC) was the best flocculant and the optimal conditions were as follows: pH neutral or alkalescent, temperature 40°C, flocculant dosage 1000 mg•L-1. After flocculation, the supernatant’s turbidity and COD could be reduced below 20 NTU and 10000 mg•L-1 respectively.
Decision Support System of Production Scheduling Based on WEBGIS
Authors: Fan Ling , Lu Qiang , Liao Mao Lin , Ren Gui Shan
Published: February 2012

As the validity period of production data is short and data volume is big, a real-time data base is designed as the system database. Based on WEBGIS technique, Geographical Information System is designed, moreover, the production system, water flood system and power system are integrated into the system, thus laying foundations for production scheduling. Through analyzing real-time information stored in the database, early warning of well production and decision support can be provided for production managers, thus improving management level and promoting the coordinated development of the oilfield.
Design of Remote Monitoring and Control System for Mine Water Storehouse Based on PLC
Authors: Ma Heng , Xu Jin Bao
Published: February 2012

The monitoring of mine water storage plays key role in preventing flood hazards and Well accidents. This paper proposes a design of Water Storehouse remote monitoring control system which based on siemens S7-200 PLC and its configuration software WinCC. Profibus-DP fieldbus is uses to realize the data communication between PLC and computer. Then the system hardware design and software design are introduced in detail. Finally, Real-time Monitoring on water level of storehouse was realized through the laboratory simulation, meanwhile, alarm information, real-time trend curve, historical curve and data report, etc were generated. This design has advantages of high degree of automation, easy expanding, reliable, easy installation, etc, which provides guarantee for mine drainage system integration of management, control and monitoring.
Growth and Characterization of Radial pn Junction Gaas Nanowire by MOCVD
Authors: Song Yue , Yan Xin , Zhang Xia , Lv Xiao Long , Li Jun Shuai , Huang Yong Qing , Ren Xiao Min
Published: February 2012

Radial pn-junction GaAs nanowires were fabricated and investigated in detail. These nanowires were grown on GaAs (111)B substrate by metal-organic chemical vapor deposition via Au-catalyzed vapor-liquid-solid mechanism. Two types of nanowire p-n junctions were fabricated by growing a n(p)-doped GaAs shell outside a p(n) GaAs core. P-type doping was provided by diethyl zinc, while silane was introduced for n-type doping. The morphology, crystal structure and doping characteristics were investigated by FESEM, TEM and EDS. The results showed that both the two structures were of good morphology and both dopants were successfully incorporated into the nanowires.
The Methods of Laser Guided Signal Information Identification
Authors: Shen Tao , Xiao Ming Qing , Kong Qing Chun
Published: February 2012

The aim of laser guided weapons adopting laser code and decode is to resolve the mutual interference of multiple irradiator in the same war zone. As an effective interfering means, active interference makes the laser guided weapons lose the right object information to protect the important objects in the attack phase by sending much interfering signal. But how to intercept, capture, analyze and identify the laser guided signal code information real-time is the first task in the laser countwork. Based on analyzing the characters of existed laser coding and wave gate, combining the time-correlation character of laser guided signal, this paper proposes the technique of laser guided signal information autocorrelation identification, and it is studied deeply by simulation and experiment. The result shows that the technique resolved the difficult problem of copying the enemy laser signal in short time effectively. The technique wins the time for the laser countwork, and it is feasible and takes on military application value.
Higher Integrability for Weak Solutions to Obstacle Problems with Differential Forms
Authors: Gu Jian Tao , Liu Hong , Tong Yu Xia
Published: February 2012

The higher integrability for weak solutions to obstacle problems associated with A-harmonic equation for the differential forms has been proved.
Approach on the Survey Method for Sound Environment in Underground Spaces
Authors: Meng Qi , Jin Hong , Kang Jian
Published: February 2012

In high density cities underground spaces are rather common. In this study the sound environment survey method in underground spaces has been explored, aiming at finding out the relationships among the environment, space, people and sounds in such spaces, as well as their similarities and differences with urban open spaces. Based on the concept of Likert scaling, questionnaires and interview methods have been designed. Using the methods, soundscape surveys have been carried out in ten underground shopping streets in Harbin, China, considering both staff and customers. By analysing the results, the reliability and validity of the method are examined.
Simulation of the Properties of 1-Ethyl-3-Methyl-Imidazolium Chloride/Chloroaluminate Ionic Liquids: Concentration and Temperature Dependence
Authors: Tian Guo Cai , Wang Ding , Li Ya Dong
Published: February 2012

Influences of the molar fractions of AlCl3and temperature on room temperature molten salts 1-ethyl-3-methyl-imidazolium Chloride /Chloroaluminate [Emim]Cl/AlCl3are studied by molecular dynamics simulation. The physical and chemical properties such as density, diffusion coefficients, viscosity, conductivity of [Emim]Cl/AlCl3with different molar fraction of AlCl3are calculated. The density is obtained as 1.1744g/cm3for [Emim]Cl, which agree well with the experimental value (1.186g/cm3). It was shown that the density and conductivity increase, whereas the viscosity decreases with the increasing of molar fraction of AlCl3. The self-diffusion coefficients of [Emim]+, Cl-and AlCl3increases and the changes of self-diffusion coefficient of AlCl3is the biggest as to molar fraction increase. It is shown that the conductivity, the self-diffusion coefficient of particles all increase, and the changes of AlCl3is the biggest with the increasing of temperature, whereas the density and viscosity reduce.
Solution-Based Synthesis of Hafnium Carbide (HfC) Powders
Authors: Mei Zhen Xing , Su Xun Jia , Hou Gen Liang , Guo Feng , Cheng Yong
Published: February 2012

HfC-based precursors with a range of carbon/metal oxide ratios were prepared from polymerization and copolymerization of metal containing monomers during solution-based synthesis. Heat treatments were given to the precursors to produce HfC powders. FTIR was used to record the infra-red spectra of the preceramic powders. HfC powders were assessed using X-ray diffraction and scanning electron microscopy.
Assessment Study on Impact of Pile Driving Vibration on Surrounding Houses
Authors: Yi Luo , Xia Sen Wei
Published: February 2012

It’s common to see the dispute caused by pile driving construction vibration effect, which has become a concern of social problems. The paper analyzes the mechanism and law of ground vibration caused by the pile driving construction. Combined with the engineering practice, discussion about the defects in the criteria of vibration detection is presented. It is necessary to do assessment study on impact of pile driving vibration on surrounding houses. Project practice indicates that application of assessment study on impact of pile driving vibration on surrounding houses is an effective management.
Earth Architecture: The Famous Buildings Based on Iranian Architecture in Iran
Authors: Niroumand Hamed , Zain M.F.M. , Jamil Maslina
Published: February 2012

Earthen buildings come in a vast variety of shapes and sizes, made from materials like fired clay, compressed dirt and a mixture of clay, sand, straw and water. People have been using various forms of earth to build structures for centuries. From underground green homes to other futuristic green houses. This paper is included 6 diverse examples of structures made from earthen materials in Iran that used Iranian architecture in their works. The buildings are included special mortar called Sarooj in their construction. The result has shown the earthen buildings create safer, more people-friendly buildings. The earthen buildings are very low in embodied energy, and extremely comfortable to live in. With captivating discussion, Earth Architecture showcases the beauty and simplicity of one of humankind's most evolved and sophisticated building technologies in Iran and the world.
Kinetics of Passive Film on Low Carbon Steel in Sodium Nitrate Solution by Numerical Analysis Method
Authors: Han Ye , Cui Zhen Duo , Wei Qiang , Zhu Sheng Li , Yang Xian Jin
Published: February 2012

Passivation is a common means of material protection against corrosion applied in engineering. It is necessary to study the kinetics of the passive films forming to control the passivation process. A numerical analysis method is proposed and applied to study passivation kinetics of low carbon steel in sodium nitrate solution. Curve of passive film coverage against time is obtained and discussed. A maximum growth rate is found at initiating passive potential during the film forming process, and the film has already begun forming before the initiating passive potential arrived.
The Important Role of Chogha Zanbil in Earth Architecture Based on Material, Structural and Architectural Aspects
Authors: Niroumand Hamed , Zain M.F.M. , Jamil Maslina
Published: February 2012

Earthen buildings come in a vast variety of shapes and sizes, made from materials like fired clay, compressed dirt and a mixture of clay, sand, straw and water. People have been using various forms of earth to build structures for centuries. The aim of this paper is to find better knowledge about Chogha Zanbil as an earth architecture based on material, structural and architectural conditions. Earth architecture includes vernacular and historical architecture drawn from many cultures and periods in different countries. Chogha Zanbil’s materials are included mud bricks and walls that are earth building’s elements. The result has shown mud bricks as good materials can be develop in new buildings and applications.
XRD Evidence for Phase Structures of Niobium Alloyed Austempered Ductile Iron
Authors: Abdullah Bulan , Alias Siti Khadijah , Jaffar Ahmed , Nor Hayati Saad , Idham Mohd Faizul , Ramli Abdullah
Published: February 2012

This paper presents the changes on phase structures of niobium alloyed ductile iron after austempering process which started by austenitizing process at 900°C and held at 350°C for 1 hour, 2 hours and 3 hours in salt bath furnace. The phase structure were observed by light microscope, and then verified through X-Ray diffraction (XRD). The phase structure of as cast niobium alloyed ductile iron mainly consists of graphite nodules embedded in ferrite and pearlite phases with presence of niobium carbide. Austempering process resulted in the structure of graphite nodules embedded in ferrite platelets and bainitic structures. Increasing the austempering holding times had resulted in coarsening of the ferrite platelets structures and transformation from lower bainite to upper bainite structures.
Study of Water Stability of AC and SMA Asphalt Mixture Based on Water Content
Authors: Guo Xue Dong , Jian Cao , Fang Xiang Yang
Published: February 2012

In this paper，study water content and water stability of AC and SMA asphalt mixtures, and reach the following conclusions. In the normal saturated condition, the maximum water content of AC and SMA asphalt mixture is 0.28% and 0.32%.And in the vacuum saturated condition, the maximum water content of AC and SMA asphalt mixture is 0.8% and 0.78%.The water of AC and SMA asphalt mixture separately take 8 days and 9 days to drain completely in the normal saturated condition. But in the vacuum saturated condition, the time is more than two months. In different water content conditions, the splitting tensile strength of AC asphalt mixture is 0%> 100%> 25%> 75%> 50%.But the splitting tensile strength of SMA asphalt mixture is 0%> 100%> 25%> 50%> 75%.