bluuebunny/crossref_metadata_2025 huggingface dataset:
Research on the Fatigue Life of Universal Mill Horizontal Roller Ring Applying Fe-Safe
Authors: Liu Yun Feng , An Xiao Yong , Zhou Shuang
Published: September 2013

In addition to the consumption caused by wear,thermal cracking and flaking,the roller ring of universal mill often occurs the roll-off accident in the rolling production. In this paper,put universal mill’s horizontal roll ring as the study subject, analyze its fatigue life using fe-safe software and estimate the fatigue life of roller ring, which has a certain reference value for the Time selection of Roll change and roll grinding .
Studies on the Aging Resistance of Polypropylene Composites Filled with Mica in High Content
Authors: Wu Yu Jiao , Yang Chun Ping , Liu Chang Gui
Published: September 2013

PP/mica composites were prepared via melt blending, homemade UV aging box and the constant temperature and humidity aging box were used to study the resistance to aging of the composites, and then the properties were studied by mechanical property test, SEM. Results show that: mica in PP matrix can improve the resistance to UV aging and hygrothermal aging; UVB irradiance within 800h plays a role in improving mechanical properties, the retentions are above 95%; at the beginning of hygrothermal, here are some contributions to tensile strength, the resistance to hygrothermal aging is reducing with the increasing of mica content, when the mica content is 10%, the resistance is best, and the retentions of tensile strength and impact toughness are above 93%.
A Method of Calculating the Dynamic Characteristics of Rubber Isolator
Authors: Guo Xiao Yan , Zhou Jin Zhi , Feng Da Peng , Li Hou Min
Published: September 2013

The dynamic property of carbon filled rubber materials is related to pre-load, excitation frequency and amplitude etc. A model by superimposing an elastic model, a viscoelastic model and an elastic-plastic model is presented to model the dynamic property of a rubber isolator. In this paper, this approach is adopted to calculate the dynamic property of a rubber isolator. It is shown that the presented model can predict the amplitude and frequency dependency of a rubber isolator with small relative errors. The validity of this model is verified by experiment. The approach described in this paper can be used in the design and calculation for rubber isolators.
Numerical Simulation Analysis of H-Beam Steel Controlled Cooling
Authors: Yu Xiao Guang , Hao Xu , Miao Rui
Published: September 2013

The finite element analysis software soft ANSYS is used for researching H-beam hot rolling finite element model, temperature field and stress strain field. Then find the changes law in different water cooling conditions of the temperature field temperature distribution and the stress strain field. Find the heat coefficient of H-beam by using the optimization analysis to reduce the differences of the temperature and the stress strain value, and also reduce the deformation in H-beam cooling process. The controlled cooling parameters of H-beam under optimal conditions are determined by the simulation experiment and comparative analysis. While exploring the changes of H-beam microstructure, stress and hardness can provide the reference for the making and designing of reasonable controlled cooling technology.
Study on Magnetron Sputtering Process of Stainless Steel Particles Sputtering on Copper Substrate Based on LS-DYNA
Authors: Zhang Zhi Ping , Liu Han Wu , Feng Hai Mei , Liu Zhi Jun
Published: September 2013

The deformation process of stainless steel particle sputtering on copper substrate to make coat was simulated by ANSYS/LS-DYNA software in the paper. The results showed that: when the steel particles are sputtered on the copper substrate, the contacting place of copper substrate with stainless steel particle top generates maximum stress and strain firstly, and then stainless steel particle shrinks from the bottom to the center, while the top flattens to the both sides. Subsequently, the bottom of the particle gradually spreads along the substrate with the stress increasing gradually, while the strain distribution and top of the particles basically unchanged, then, the particle flattens and its stress gradually spreads to particle interior, at the same time, the bottom of particle gradually shrinks and its top gradually expands to the end. Through analyzing equivalent stress and strain distributions, the kinetic and internal energy distributions of sputtering particle unit and substrate unit contacting together, the variation rules of mechanics and energy parameters in the sputtering process are elaborated further. It laid an important theoretical basis about exploring the basic laws and mechanics parameters variation in magnetron sputtering coating process.
Optimization Design Method of the Pre-Manufactured Hole of Flanging
Authors: Li Yang , Wang Zhong Lei , Li Xiao , Cheng Gang
Published: September 2013

For the difficulty of calculating the size of the Pre-Manufactured hole of flanging, the formula was derived by using the theory of equal line length and the theory of equal area. And the formula was verified by finite element simulation. Due to theoretical formula has certain error, the optimal design method based on interpolation was put forward and optimization design the size of the Pre-Manufactured hole of flanging. Engineering example shows that this optimization design method is accuracy and convergence speed, and it can quickly calculate the the size of the Pre-Manufactured hole of flanging.
Prediction of CNC Thermal Deformation Based on the Compensation Fuzzy Neural Network
Authors: Yu Jin , Liu Cheng Lin , Zhu Xiu Feng , Shi Yu Xiang
Published: September 2013

A new predictive model has proposed based on compensation fuzzy neural networks for thermal error in NC machine tools . The structure of model , fuzzy rule , training algorithm and some technological problems are discussed.And the result of intelligent prediction and accuracy evaluation are given.
Performance Simulation and Analysis of the Progressive Distributor of the Oil-Air Lubrication by AMEsim
Authors: Sun Qi Guo , Cai A Li , Lv Hong Bo , Zhou Zheng Hui
Published: September 2013

The mathematical model and the simulation model of the progressive distributor are established using an analytic method and AMEsim, a kind of simulation platform, respectively in this paper. The influences of the progressive structure, the viscous friction coefficient, the flow and pressure of the system and the size of throttle orifice on the performance of the progressive distributor are analyzed by the numerical simulation method. The results show that the fluctuations of the flow and pressure of the system are produced due to the overlapping motion of the three pistons, the oil-flow of the progressive distributor can be stabilized by choosing a reasonable viscous friction coefficient, and motion stability of the pistons of the progressive distributor, and the stability of the flow and pressure for the system are influenced by the size of throttle orifice. These conclusions will provide bases for the design of the oil-air lubricating system and the improvement of the structure of the progressive distributor.
FEM Simulation of Main Deformation during Cage Roll-Forming Process
Authors: Hu Sheng De , Zhang Jing , Li Li Xin , Liu Yong
Published: September 2013

Cage roll-forming is an advanced roll-forming technique widely used in high frequency welding (HFW) pipes production. However, to the authors' knowledge, the real cage roll-forming production is mainly on experience rather than science. Few publications can be found on cage roll-forming for its complexity. In order to improve the understanding of the technique, a large deformation elastic-plastic finite element model for the HFW660 cage roll-forming mill was established and simulated through adopting the dynamic explicit algorithm. The distribution of effective plastic strain and the deformed geometry of the strip at the pre-forming and linear section were obtained. The simulation results were validated with the measurements. The results show that the biggest effective plastic strain (EPS) occurs at the center of strip. The distribution of EPS is far from uniform on the cross-section of the strip. This may owe to the uneven distribution of down-hill amount.
Design of a Semi-Real Simulation Platform for the Cold Rolling Mill
Authors: Zheng Gang , Ma Bin , Yang Zhe , Liu Ding
Published: September 2013

We designed a semi-real simulation platform for the cold rolling mill that was composed of Simulation Computer, Simulation System of Field Signal, AGC Control System, Console of Rolling Mill and the Main Control Computer, and built the mathematical models in the Simulation Comuter, for the hydraulic servo system, rolling force and thickness of strip material. In the platform, the Simulation System of Field Signal output the simulation data as standard sensor signal; the AGC Control System is the same as that used in real rolling mill system. We simulated the milling process of real rolling mill system at this platform using the field-recorded online data. The differences between simulation results and those in real system were small. Simulation results show that this simulation platform can be used in the research and optimization of rolling mill control system.
Electrospun Ketoprofen Sustained Release Nanofibers Prepared Using Coaxial Electrospinning
Authors: Yu Deng Guang , Hu Min Hao , Zhou Wen , Chen Bi Yu , Wang Xia
Published: September 2013

The present study investigates the preparation of sustained release drug-loaded nanofibers using a modified coaxial electrospinning process where only solvent is exploited as sheath fluid. Drug-loaded ethyl cellulose (EC) nanofibers are successfully generated smoothly and continuously without any clogging through the coaxial process, in which ethanol is used as sheath fluid and EC and ketoprofen (KET) are taken as the filament-forming matrix and active pharmaceutical ingredient, respectively. Field-emission scanning electron microscopic observations demonstrated that the nanofibers diameter can be manipulated through the sheath fluid flow rate. The composite nanofibers are in essential a molecular solid dispersion of EC and KET based on the hydrogen bonding between them, as verified by XRD and ATR-FTIR results. In vitro dissolution tests show that KET in the nanofibers has a fine sustained release profile via a typical Fickian diffusion mechanism. The modified coaxial electrospinning with solvent as sheath fluid can be a useful tool for developing novel sustained release drug delivery nanofibers.
The Nanocapsulation Research Progress in Food Industry
Authors: Xiao Zuo Bing , Li Wei , Zhu Guang Yong , Zhou Ru Jun , Niu Yun Wei
Published: September 2013

The application of nanocapsules in pharmaceutical, cosmetic and food industries has attracted great attention from scientific research. In the food field, nanocapsules of aroma, bioactive components have been gradually widely used in food additives, beverage and nutrition and nutraceuticals, owing to their excellent sustained-release, stability and resistance to oxidation. This concise review focus on several kinds of nanocapsulation techniques, such as emulsion technique, emulsification-solvent evaporation technique, complex coacervation, inclusion complexation, supercritical fluid technique, solvent diaplacement for food ingredients, and then forwards the further development of the nanocapsulation techniques in the food industry.
Preparation of Ni-ZrO2-CeO2 Nanocomposite Coatings by Pulse Electrodeposition
Authors: Xu Yang Yang , Xue Yu Jun , Yang Fang , Liu Chun Yang , Li Ji Shun
Published: September 2013

Ni-ZrO2-CeO2 nanocomposite coatings were prepared by pulse electrodeposition. The effect additions of ZrO2 and CeO2 nanoparticles, average current density, duty ratio and frequency of pulse current on nanoparticle contents of Ni-ZrO2-CeO2 nanocomposites were studied. The surface morphologies and microhardness of different nanocomposite coatings (Ni-ZrO2, Ni-CeO2, Ni-ZrO2-CeO2) were analyzed. The results show that, with the average current density, duty ratio and frequency increased, the nanoparticle contents increased at first and then decreased. Compared with Ni-ZrO2 and Ni-CeO2, the surface morphology of Ni-ZrO2-CeO2 nanocomposite coating showed better smooth surface and more compact microstructure, the microhardness was also higher.
A Straight Nanopore Drilling by Transmission Electron Microscope
Authors: Lin Tsan Chu , Wang Y.C. , Wang Zhen , Wang Shou Yang , Wang Dau Chung
Published: September 2013

For nanopore drilling in a membrane by transmission electron microscope, a straight through-pore is in general not the case of the fabrication result. For instance, a silicon nitride nanopore with an hourglass profile and a silicon oxide nanopore with a pyramid cross-section were reported in recent researches. The reason for not getting a straight through-pore by the electron drilling was analyzed. A hypothesis, which improving heat conduction property of the membrane would lead to a straight nanopore drilling, was proposed. And the hypothesis was confirmed true.
Optical Properties of Fe-Doped TiO2 Thin Film Prepared by Sol-Gel
Authors: Wang Jun , Huang Long
Published: September 2013

Undoped and Fe-doped (Fe ions content was 0.1) TiO2 thin film prepared by Sol-gel method. X-ray diffraction (XRD) results showed that TiO2 gel annealed at 500°C was crystallized anatase phase. The contact angle for undoped and Fe-doped TiO2 thin film was 47.1° and 8.8°. The transparent spectra showed that the cutoff wavelength of was red shift. The band-gap of Fe-doped TiO2 film was 3.47 eV.
Cyclic Hardening Behavior of Extruded AZ31B Magnesium Alloy during Low Cycle Fatigue Process
Authors: Duan Guo Sheng , Wu Bao Lin , Zhao Xiang , Zhao Gang
Published: September 2013

The strain-controlled fatigue tests on extruded AZ31B magnesium alloy were conducted under the uniaxial loading with strain ratio Rε=-∞, frequency of 0.1 Hz and strain amplitude of 2% at room temperature. The cyclic hardening behavior was investigated. It was found that, during the low cycle fatigue (LCF) process, as the number of cycles increases, the stress amplitude increases corresponding to the decrease of the plastic strain amplitude. The development of dislocation density can be described as the function of the number of fatigue cycles, and the behavior can be explained well based on the dislocation density development model.
Comparison of Oxidation Behavior of Binary Co-10X (x=Al, Si, Cr) Alloys at 973 and 1073K
Authors: Zhang Hong Hua , Xiang Jun Huai , Xu Xian Chao , Wang Chu
Published: September 2013

Kinetics and products of oxidation behavior of binary Co-10Al, Co-10Si and Co-10Cr alloys at 0.1Mpa oxygen at 973 and 1073K were analyzed and compared. The investigations show that CoO doesn't provide protective properties at high temperatures. Among the three alloy components, Co-10Cr has better oxidation resistance at 973K, while Co-10Al has at 1073K, and the causes are given. In addition, the schematic model of scale growth process is presented.
Numerical Simulation of UHMWPE Laminated Fiber Plate Resisted Projectile
Authors: Wang Li Jun , Tang Ting , Ma Jin Bo
Published: September 2013

The problem of UHMWPE laminated fiber plate resisted projectile was studied by the non-linear FEM that Truegrid/LS-Dyna. The material parameters of fiber layers were gained after synthesizing test datum and some references, then the model of *MAT_COMPOSITE_DAMAGE was used to simulate the UHMWPE laminated fiber plate. The results of numerical simulation were compared with the test results, and the method of numerical simulation in the paper was proved.
Effect of Hydrogen as a Temporary Alloying Element on the Microstructure and Mechanical Properties of Ti-6Al-4V Titanium Alloy
Authors: Zhou Li , Liu Duo , Liu Hui Jie , Wu Lin Zhi
Published: September 2013

The α + β dual-phase titanium alloy, Ti-6Al-4V, was thermohydrogen processed with 0.1, 0.3 and 0.5 wt% hydrogen. Hydrogen was removed from the hydrogenated titanium alloy by vacuum annealing. Microstructure and mechanical properties of the hydrogenated and dehydrogenated titanium alloy were investigated. Effect of hydrogen as a temporary alloying element on the microstructure and mechanical properties of Ti-6Al-4V titanium alloy was systematically discussed. It was found that hydrogen stabled the β phase and leaded to the formation of α martensite as well as δ hydride in the hydrogenated titanium alloy. Mechanical properties of hydrogenated titanium alloy deteriorated with increasing hydrogenation content. The α martensite and δ hydride decomposed during the dehydrogenation and the dehydrogenated titanium alloy only consisted of α and β phases. The mechanical properties of hydrogenated titanium alloy with different hydrogen content were recovered and were tend to be consistent after dehydrogenation.
Investigation on Microstructure, Texture and Tensile Properties of Hot Rolled Strip Casting Grain-Oriented Silicon Steel
Authors: Song Hong Yu , Lu Hui Hu , Liu Hai Tao , Wang Guo Dong
Published: September 2013

An Fe-3wt% Si as-cast strip was produced by twin-roll strip casting process. The as-cast strip was hot rolled at 1150°C by one pass of 20% reduction and coiled at 550°C. The tensile test was carried out and the elongation was measured. The microstructure and texture of the coiled strip and the fracture surface morphology of the tensile samples were characterized. It is found that the microstructure of the as-cast strip was characterized by columnar ferrite grains with pronounced {001}<0vw> fiber texture and martensite. The microstructure of coiled strip consisted of ferrite grains and pearlite, and the texture was mainly characterized by {001}<0vw> fiber texture. The necking was absent during the tensile test and the elongation of coiled strip was as low as 12%. The fracture surfaces of the tensile samples mainly exhibited cleavage fracture mode with coarse cleavage facets and some ligaments.
Research on the Optimization of Heat Treatment Process and the Abrasive Impact Wear Mechanism of 70Mn Steel
Authors: Deng Peng , Song Ren Bo , Sun Ting , Wang Xu
Published: September 2013

This research was conducted on the influence of heat treatment parameters on the mechanical properties and abrasive wear resistance of 70Mn steel through experimental results. Orthogonal experiment was applied for designing heat treatment process and acquired optimal heat treatment parameters. The experimental results showed that the optimum heat treatment process was firstly heated to 830°C preserved for 60min, and rapidly quenched, then tempered at 200°C for 80min. Abrasive impact wear experiment was performed on MLD-10 tester, under which the wear surface and the subsurface were observed through scanning electron microscope and optical microscope. According to the experimental result, abrasive impact wear mechanism was analyzed. The results showed that plastic deformation fatigue and gouging wear were the primary mechanisms of abrasive impact wear, together with a small amount of furrow and cutting.
Study of Precipitation in Continuously Casting Slabs of Microalloyed Steels
Authors: Xu Guang , Hu Hai Jiang , Xiong Tao , Hu Zhang Wei
Published: September 2013

The precipitation in continuously casting slabs of a Ti-Nb microalloyed steel was studied. The samples were taken from different places along cross section of slabs and the precipitations were observed by TEM. The results show that the centre area of slab contains more precipitates of Ti-Nb and carbonitrides more uniformly distribute in the centre along thickness direction. Moreover, the precipitates in the middle are more than those in the edge along width direction of slab. Some large carbonitrides exist in the middle of slab because the temperature in the middle is higher during slab cooling resulting in the large precipitates. The study provides the basis for understanding the precipitation in slabs of Ti-Nb microalloyed steels.
Experimental Study on the Oxide Scale of Steel Slab under Oxygen-Enrichment Combustion
Authors: Qi Li Ying , Cang Da Qiang , Hong Liu
Published: September 2013

In this paper, A test furnace design for use in oxygen-enriched combustion to investigate the oxide scale of steel slab. The heating time, oxygen content and temperature were investigated, and the structure of oxides formed on the slab was characterized. The results show that magnetite film formed on the slab increases in thickness with oxygen enrichment which restricts the diffusion of oxygen and make oxide scale decreased, the oxidation loss of billet has reduced by approximately 37% and the fuel has a 26% fuel savings because of the heating time is decreased
Detection of Phthalate Esters from Plastic Packaging Materials into Edible Oil by Gas Chromatography-Mass
Authors: Li Lin , Sun Qiu Ju , Xin Shi Gang , Yu Long , Jiang Zhong Li
Published: September 2013

A method for the simultaneous determination of 15 kinds of phthalate esters in edible oil by gas chromatography-mass spectrometer (GC-MS) was firstly established. The calibration curves showed good linearity in the range of 0.001~1mg /L and the correlation coefficients (r) were more than 0.999. The limits of quantification were in the range of 0.001~ 2.000 μg/L (S/N = 10). The recovery of three level ranged from 70.50% to 112.00%, at spiked levels of 0.1mg/L, 1.0mg/L and 10mg/L with the relative standard deviations (n = 6) of 0.59% ~ 7.54%. On the basis of the above method, the three edible oils under different storage temperatures were detected and the results showed that DIBP, DBP and DEHP were detected in two samples. This method possesses high sensitivity and low detection limit and can be used for quantitative analysis PAEs in edible oils.
Preparation and Electromagnetic Shielding Effectiveness of a New Kind of Electromagnetic Shielding Composite Coatings
Authors: Guan Deng Gao , Sun Yao , Xu Guan Li , Sun Chuan Min , Li Hua Wei , Xu Wen Jun , Zhou Wen Xin
Published: September 2013

A new kind of the electromagnetic shielding composite coatings with high performance was prepared using the Ni-Cu-coated glass fibers and nickel powders as fillers and using epoxy resin as binder. The effects of the fibers on the conductivity and electromagnetic shielding effectiveness of the coatings were studied. The study results show as follows: 1) when the optimum ratio of the fillers to epoxy resin is 4:1, the coatings containing 6 wt% the Ni-Cu-coated glass fibers has best conductivity and electromagnetic shielding effectiveness; when the coating layer thickness is 300 μm, the shielding effectiveness of the coatings is up to 43.71-52.31 dB and increased an average of 13.94 dB compared with the nickel powders/ epoxy resin electromagnetic shielding coatings in the frequency range of 0.3-1000 MHz. This offers a new idea to enhance the added value of the glass fibers and the prevention of electromagnetic environmental pollution.
Effects of the Water Absorbability of Superabsorbent Prepared by Graft Copolymerization of Acrylic Acid onto Milk Proteins
Authors: Wei Meng , Sui Yu Feng , Zhao Yu Hua , Chen Quan Liang , Gao Bo , Li Ting Xi
Published: September 2013

Super Absorbent Polymer is a new type of functional polymer material developing at a high speed since the late 70’s. It can absorb water quickly . After absorbing water it becomes a kind of achromatic hydromel, and the absorbed should be: water is hard to remove even under pressure. As a result, it is usually referred as high-absorbent polymer, super absorbent polymer retention or super absorbent polymer unnecessary . This study is concerned methods of preparation and application areas of water absorbency, the influence of the initiating agent and cross-linking agent amount on the water absorbency. When the initiating agent, cross-linking agent ratio were respectively 0. 4% and 0. 2%, the water absorbency was highest. The reversibility of PH is also discussed, as well as the best methods of preparing high-water-absorbent resin cut this.
Research of Arylic-Terminated Hyperbranched Polyester Modified Styrene-Acrylic Emulsion
Authors: Mu Rui , Zhao Chuang
Published: September 2013

Hhyperbranched polyester (HBPE) was synthesized with trimethylol propane and 2,2-dimethylol propionic acid, and arylic-terminated hyperbranched polyester (AHBP) was got by modified its terminal groups with maleic anhydride.AHBP used as copolymerization monomer on modification of styrene-acrylic emulsion. Results show that AHBP could be used for emulsion polymerization,with the increase of dosage,gel fraction in the process of polymerization gradually increased,emulsion stability of calcium ions increased nearly three times, viscosity of emulsion most decreased by 29%,and hardness of emulsion film increased by 1 grade from 2B to B.
Synthesis and Characterization of a Novel Aramid Fiber Liquid Crystalline Polymer
Authors: Jin Hui , Wang Yi Yong , Li Cheng Wei
Published: September 2013

The-NH2 groups, as grafting initiators, are introduced to the surface of meta-aramid fibers by treating the fiber surface with dilute sodium hydroxide solution. A kind of new aramid fibers liquid crystalline polymer were synthesized by interfacial polymerization of mesogenic monomer DDBA, main-chain LCI containing sulfonate ionic monomer BY, sebacoyl dichloride and aramid fibers hydrolysed. The structure and properties of aramid fibers before and after modification were characterized by SEM, FTIR, and POM.
Effects of Emulsifier Concentration on Polymer Particle Size in Emulsion Polymerization of Styrene
Authors: Mei Li Bao , Xiao Xiao Qin , Li Yong , Sun Yan Lin
Published: September 2013

The variation trend of polymer particle size under different emulsifier concentrations in emulsion polymerization of styrene were investigated in this paper. The results show that the particle number increases and particle size decreases with the increase of emulsifier concentration. But the particle size growth is controlled by the rate of the monomer migration from water medium to the growing micelles.
The Influence of Work Parameters on a Hydrogen PEM Fuel Cell Efficiency
Authors: Bukowski Przemyslaw , Honus Stanislav , Juchelková Dagmar
Published: September 2013

In the paper the basic information about hydrogen were given. The most important parameters from energetic point of view were described. The efficiency and other work parameters were shown in the form of graphs.
Progress of Studies on Durability of FRP Rods Used in Civil Engineering
Authors: Wei Shao Ming
Published: September 2013

Fiber reinforced polymer ( FRP) rods have a broad application in civil eng ineering field used as a material substiting steelbars. Based on the domestic and abroad research, the durability of the fiber reinforced polymer (FRP) rods undermultifarious environmental conditions is summarized in this paper, and the effect of environments such as temperature, humidity, corrosion from acid, alkaline and salt solutions on durability performance of FRP materials as well as the degradation of the bond characteristics between FRP rods and the interface of concrete caused by the acceleration environment test are mainly discussed. The results indicate that the environmenta lconditionsm entioned above affect FRP rods and bond characteristics between FRP rods and the in terface of concrete.In addition, a relatedmodel predicting the influence on durability of FRP rods in alkaline solutions is given and future study trend on durability of FRP rods is presented
Diagenesis of Volcanic Rocks and its Effects on Evolution of Reservoir Space of Yingcheng Formation in 2,3 Wellblock of Yaoshen Area
Authors: Liu Yan Chun , Xu De Long , Liu Cheng Zhi , Li Lu Qi , Pei Jing Bo
Published: September 2013

Based on a large number of core description, combined with indoor rock thin section analysis,cast thin-section pore character analysis ,microphotograph and scanning electron microscope observation, the diagenesis of the volcanic rock of Yingcheng formation in Yaoshen area were studied in detail. The results show that there are 5 kinds of diagenesis types in Yingcheng formation, among them, the dissolution, structure effect have a decisive influence on the formation of reservoir pore; reservoir space evolution has four stages in all, diagenesis has a great influence on reservoir space evolution.
Gulong Oilfield Putaohua Oil Layer in the Gu 83 Block Sequence and Sandstone Characteristics Research
Authors: Li Lu Qi , Liu Cheng Zhi , Liu Yan Chun
Published: September 2013

Gu 83 wellblock is the center of the Gulong reserves, the well test oil yield is high, the oil-bearing area shall, as reserves and production increase nine oil production company of Daqing oil field replacement area. On the basis of high resolution sequence stratigraphy theory, strata as the instruction, the trunk section and the well combination method is used to contrast layer and multiple well profile compared to small layer, establish high resolution stratigraphic framework. The Putaohua reservoir is divided into three sandstone under the group, which, subdivided three eight small layers for sandstone. Through well combine to determine the sequence division of the interface, divided into Putaohua reservoir. Considering lithology, curve characteristics of shaft vibration, even the well profile correlation research area according to the principle, method, sequence division division, in the Putaohua oil layer, three sets of sandstone under the group; On the segmentation, each group sandstone, upper sandstone will eventually set is divided into two layers of P11, P12; middle sandstone is divided into P13, P14, P15 three small layer; under sandstone under group is divided into P16, P17, P18 three small layer.
The Research on Seismic Performance of the Insulation Material on the External Wall of a Building
Authors: Zou Zu Xu , Mao Song Ping
Published: September 2013

It is a problem on building energy efficiency of how to improve the heat insulation performance of building envelope, to make the building outer wall has good heat preservation effect, and to keep the necessary seismic performance. Exterior wall thermal insulation engineering, which is a key part on building energy conservation engineering construction quality acceptance and on building energy efficiency design, is an important part in building energy efficiency projects. Therefore, it is necessary to study the seismic performance based on the fact that the building is building energy efficiency. By the research on exterior insulation materials, the analysis on the performance of external thermal insulation materials currently used, and the research on the factors affecting the seismic performance of external thermal insulation material, It provides a guidance on evaluating the external wall thermal insulation material performance and quality, ensuring the quality of external thermal insulation material, and it is expected to achieve the effect of building energy efficiency.
Analysis on Earth Stress and Fracture Distribution Characteristics with Image Logging
Authors: Zhang Qing Guo , Guo Zhi Hua , Li Yi He
Published: September 2013

The generation of Damintun Depression base-rock reservoirs are mainly controlled by fracture development. Currently, for the fracture-system space distribution characters, we haven’t understood clearly. Therefore, we must find fracture developing zones and learn their development state in order to study the planar distribution law of factures. The principal stress was calculated and fractures were identified using sonic and electrical image logging data. Combined with the relationship in borehole breakout method that borehole collapse direction was substantially perpendicular to principal stress direction, the modern horizontal principal stress was determined. Then the base-rock fractures were extracted manually in imaging interactive interpretation graphic. Thus the relation is obtained that the maximum horizontal Earth stress direction is vertical to fracture distribution, and the structural-zone faults are consistent with the fracture distribution law.
Study on the Cementitious Proportion of Cemented Mine Tailings
Authors: Hou Yun Bing , Peng Bo , Wang Bing Wen , Yu Hui , Kong Xin Jie , Kong Ling Gen
Published: September 2013

The cementation technology to deal with the mine tailings is adding cementation material and then dehydrating tailings and piling on suitable spot. In order to find the law of the mixing ratio of the cementitious material of the mine tailings of Xishimen Iron Mine, Portland cement and cementitious material A are selected to be compared in the experiment of strength test of cementation of the mine tailings of Xishimen Iron Mine. The result shows that both kinds of cementitious materials can meet the needs when the mixing ratio is 2-3%, but the cementation performance of material A is better than Portland cement. The experiment of adding admixture to improve the cementation performance of material A is carried and the result shows that Na2CO3 and KAl(SO4)2•12H2O can improve the strength of cemented whole tailings while Na2SO4 , CaSO4 and Na2SiO3is helpless to improve the strength.
The Preparation and Electrochromism Property of Vanadium Pentoxide
Authors: Wang Yi Xin , Bian Feng Ling , Sun Sheng Nan , Wang He , Xu Feng , Chen Lei , Zhang Chun Peng , Cui Hai Ning
Published: September 2013

The V2O5 films were prepared by the (radio frequency)RF sputtering. The transmission of the samples under different deposition pressures and different Ar/O2 flow ratios was investigated to determine the fundamental preparation condition for the further analysis. On the fundamental condition, the security volt of V2O5 was determined. It is concluded that the annealing makes the V2O5 films have a good reversibility but lowers the electrochromic property.
A Numerical Method for the Paving Block Evaluation
Authors: Yu Chau Cho , Chang Jun Wei , Hao Su Wei
Published: September 2013

A process to evaluate the paving block design is proposed. A numerical tire model is developed appropriately for the analysis. The contact pressure between the tire and paving block is calculated. Its distribution pattern is compared with the result of the field tests and is found to be in a good agreement. The present study shows that the magnitude and the distribution pattern are sensitive to the roughness of the road surface. The contact pressure induced by the dynamic impact due to a bumpy surface could be several times higher than that contributed from a smooth run-over. The hot spots in paving blocks are identified as a preliminary study of a research project regarding paving block durability. The tire model is composed of half a deformable tire skin, a rigid rim, a suspension, tire mass, and vehicle mass. The tire-block contact, the tire inner pressure, and the dynamic forces due to inertia are considered as the major loads. It is CPU efficient for less than 1200 CPU seconds required on a personal computer in one drive-through simulation. The proposed study shall be the initial investigation using direct pressure measurement on paving blocks. The lab test results will be fed into numerical model to analyze the failure mechanism which may lead to possible design improvements. Wide application can be expected in the future.
A Brief Analysis of the Floor Crack
Authors: Wang Jiu Jun
Published: September 2013

people usually think that the cracks of cast-in-place floor slab is the inevitable phenomenon in theory, but by finding reason in some ways, it is completely possible that people determine the preventive measures to reduce and control the crack. When appearing cracks, people reduce the impact of crack in the lowest by correctly understanding and dealing with crack.
Research on Supporting Theory of Pressure-Bearing Ring and Yield Supporting Technology in Extremely Soft Rock Roadway
Authors: Qu Guang Long , Wang Jun , Liu Guo Lei
Published: September 2013

The soft rock roadway is classified by uniaxial compressive strength of rock and water-physical properties, which includes hard surrounding rock in deep mine, soft surrounding rock, and extremely soft surrounding rock. Aimed to the situation of being hard to support the extremely soft rock roadway, with combination of the specific project of return airway crossheading roadway of sea area NO.2 mining district in Beizao coal mine, a compound roadway supporting technology based on the concrete-filled steel tube support, reinforced concrete lining, with combination of yield supporting technology was used for this specific project, for which the mechanical model of the pressure-bearing ring structure was analyzed and calculated by using fixed-end arch theory in structural mechanics and Lame formula in Elastic theory. The field test results showed that this new compound roadway supporting technology was an ideal method to support the extremely soft rock roadway, which could control the deformation of roadway and realize the stability of roadway, effectively.
Application of Reclaimed Ladle Bricks in Magnesium Aluminate Spinel Based Castables
Authors: Li Zhi Hui , Qu Dian Li , Li Jing , Wang Lin
Published: September 2013

The way of producing ladle used MgO-Al2O3 castables using reclaimed bricks of ladle as aggregate is researched by structure analysis, XRD and phase diagram analysis. Influence on structure and physical properties of castables added different percentage of reclaimed bricks is discussed. The following conclusions are got: Adding suitable reclaimed ladle bricks won’t decrease the strength of the specimens, all the specimens have high bulk density(≥2.98g/cm3) and low apparent porosity(≤14%); Suitable addition of reclaimed ladle bricks as aggregate can improve the thermal shock resistance of MgO-Al2O3 castables, however, over-addition will weaken its thermal shock resitance; Slag erosion resistance increases with the addition of reclaimed ladle bricks. To sum up, reclaimed ladle bricks can be used in MgO-Al2O3 castables and castables with excellent comprehensive properties can be got when 12.5% reclaimed ladle bricks are added as aggregate.
Biodegradation of DCM Vapor in a Biofilter
Authors: Sun Hong Tao , Li Liang , Hao Xin Gang
Published: September 2013

Biofiltration of DCM vapor from air stream was discussed in this study. Experimental investigations were conducted on a laboratory scale biofilter, containing mixture of compost and polystyrene inert particles as the filter materials. Activated sludge was used as an inoculum. The continuous performance of biofilter for DCM removal was monitored for different concentrations and flow rates. The removal efficiencies decreased at higher concentrations and higher gas flow rates. A maximum elimination capacity of 8g/(m3·h) was achieved. The response of biofilter to upset loading operation showed that the biofilm in the biofilters was quite stable and quickly adapted to adverse operational conditions.
The Effect and Mechanism of Apoptosis Induced by Desacetylcinobufotalin (DEBF) in Human Hepatocellular Carcinoma HepG2 Cells
Authors: Chao Xu , Dang Lin , Wei Min Hui
Published: September 2013

The cytotoxicity of Desacetylcinobufotalin (DEBF) and apoptosis induced by DEBF was measured. Additionally the mechanism of Apoptosis induced by DEBF was studied through Western blot. The results show DEBF displayed the marked inhibition effect to HepG2 cells and the IC50 value is 0.0279μmol/ml. The expression of Bax was significantly increased and the expression of Bcl-2 was markedly decreased, compared to the control. The data suggest DEBF had significant antitumor activity through induction apoptosis via mitochondria pathway.
Adsorption of Cesium from Aqueous Solution by Modified Montmorillonite
Authors: Liu Si Man , Quan Yong Zhou
Published: September 2013

The modified montmorillonite is used to adsorb cesium ions from aqueous solution. The influence factors such as adsorption time, adsorption temperature, adsorption pH, adsorbent dosage and initial concentration was studied in the experiment. The results show the optimum adsorption time is 100 min, the best adsorption temperature is 50 °C, and pH value is 10. When the concentration of cesium ions is 160 mg/L, the adsorption capacity can be up to 9.217 mg/g.
Sensitive Determination of Eight Paralytic Shellfish Poisoning Toxins in Aquatic Products by LC-MS-MS Method
Authors: Feng Bing , Cai You Qiong , Zhang Xiao Ling , Yu Hui Juan
Published: September 2013

With the rapid increasing happening frequency of red tide in China, the urgent pollution issue of paralytic shellfish poisoning (PSP) toxins in aquatic products is becoming more serious and attacking greater attention. Thus, the routine monitoring of PSP toxins in aquatic products need to be vigorously enforced. In this study, the LC-MS-MS method for eight PSP toxins was developed and applied for the quantitative analysis in sea foods from different areas of China. The result showed the proposed method can completely meet the need for their routine monitoring purpose.
Research Progress of the Properties and Application of Bamboo Charcoal
Authors: Ye Yong Jun , Zhang Zhong Feng
Published: September 2013

As a new environmental-friendly material and functional material, research and developmental utilization on bamboo charcoal has been taken much more attention. It described the basic properties of charcoal, such as composition, structure etc., and also introduced the adsorption properties, electromagnetic properties, far-infrared emission properties, release negative ions properties etc., as well as the corresponding application research status at home and abroad. The future research of bamboo charcoal should focus on the properties and application of micro nano bamboo charcoal.
Study on Loading Rate-Dependent Property of Different Layers in Articular Cartilage Based on ABAQUS
Authors: Liu Zhi Dong , Gao Li Lan , Xu Bao Shan , Zhang Xi Zheng , Zhang Chun Qiu
Published: September 2013

A new biomechanical model of articular cartilage was developed using ABAQUS to investigate the mechanical properties of different layers under different loading rates. It is found that the compressive strain of superficial layer is the largest, the compressive strain of deep layer is the smallest and the compressive strain of middle layer is between the superficial and deep layer under constant loading rate. The compressive strains of different layers increase with increasing loading rates. At the beginning of loading, fluid flows mainly in the superficial layer and flows into the middle and deep layer with the increasing time and the position of the maximum flow moves downward. Void ratio also increases with the loading time.
The Micro-Mechanical Behavior of Articular Cartilage under Continuous Sliding Load
Authors: Xiao Peng Peng , Gao Li Lan , Liu Zhi Dong , Zhang Chun Qiu
Published: September 2013

As a viscoelastic and nonlinear connective tissue, articular cartilage bears continuous sliding load in the daily activities. The optimized digital image correlation (DIC) technique was applied to investigate the effect of sliding rate and compressive strain on the normal displacement of different layers in pig articular cartilage under sliding load. The normal displacements of different layers in cartilage increase gradually with sliding going on with given sliding rate and compressive strain. Experiments showed that the normal displacement of superficial layer is the largest, the normal displacement of deep layer is the smallest and the normal displacement of middle layer is between superficial layer and deep layer, and found that the normal displacements of different layers in cartilage increase with increasing compressive strains, but decrease with increasing sliding rates. The normal displacement of different layers are different under continuous sliding load.
Application of Melt Extrusion Process for an In Situ Polymers Blend of Cellulose with Polyethylene Glycol in the Presence of Ionic Liquid
Authors: Gibril Magdi E. , Li Xin Da , Li Hai Feng , Zhong Xuan , Li Huan , Zhang Yue , Han Ke Qing , Yu Mu Huo
Published: September 2013

To modifying cellulose through an eco-friendly process, an in-situ chemical blend modification of microcrystalline cellulose with PEG2000 was conducted by using co-rotating twin-screw extruder through a reactive extrusion process in the presence of IL namely, 1-N-butyl-3-methylimidazolium chloride which, was acting as plasticizer and solvent for cellulose . The modified cellulose (cellulose/PEG) was characterized by polarization optical images (POM), FT-IR, XRD and thermogravimetric analysis. The POM and XRD confirmed that cellulose I was changed into cellulose II. The FTIR and X-ray scattering showed that the cellulose hydrogen bond was disturbed through the extrusion, and strong interactions occurred between cellulose molecules and PEG which improved the thermal stability and decreased the degree of crystallinity.
Threshold of Impact Energy on the Medium Leakage of CFRP Laminates
Authors: Zhang A Ying , Zhang Zhi Jun , Jia Zhen , Zhang Ye , Zhang Dong Xing
Published: September 2013

The effects of the thickness and the impact energy on the medium leakage of CFRP laminates were discussed in this paper. Impact tests for CFRP laminates with the size of 600 mm×700 mm with three different thicknesses were subjected to impact energy levels from 5 J to 65 J. The medium leakage and the damaged area were investigated according to different energy levels and thicknesses. The damage area was evaluated by visual inspection and three-dimensional microscope. The experimental results reveal that the impact damage of CFRP laminates tends to be more severe as the impact energy increases, and the impact area and the crater depth increases with the increasing impact energy. For the same impact energy, the impact area and the crater depth decrease with the increasing thickness.
Amplification and Bioinformatics Analysis of IGS1 Sequence of Aurcularia Auricular
Authors: Xiong Yong , Yue Wan Song , Zhao Chun Yan , Yang Cui
Published: September 2013

The intergenic spacer 1 (IGS1) region in rRNA gene of Auricularia auricula was PCR-amplified and sequenced, and the sequence was analyzed by using bioinformatics technology. The two-way sequencing results were spliced by DANMAN software and used MEGA5.10 to analyze sequence variability, calculate genetic distance and construct phylogenetic tree. The amplified fragment length of intergenic spacer 1 (IGS1) gene was about 954bp ~1162bp, GC content of 51.90 to 52.02%, 73 nucleotide variable sites, 16 parsimony informative sites. Variable sites were mainly concentrated in the201~232bp and 714~884bp region. IGS1 sequences have great extent Compared with other 9 species from the GenBank according to the analysis of distance matrix, the genetic relationship between strains and the related known species from systematic dendrogram, IGS1 sequence analysis supports the traditional classification of Auricularia based on morphology. IGS1sequences variation could distinguish the difference between Araucaria species, it could be used as a supplement study genetic diversity method.
Numerical Simulation of Preparation Process of Selective Absorbing Coating Based on Magnetron Sputtering Technology
Authors: Liu Han Wu , Wang Jun Hong , Ping Shao Bo , Huang Lei
Published: September 2013

According to a company's actual process of producing coatings, Finite Element Method is adopted to simulate and analyze the variation rules of various fields and mechanical parameters during the preparing process of solar spectrum selective absorbing coating for medium-high temperature application using magnetron sputtering. The results show that during the process of magnetron sputtering, magnetic fields uniformly distribute around the target and the sputtering etching area can be a wide range of 180°. In the spaces for magnetron sputtering, the magnetic flux is maximum at the contact between the and the core, and the magnetic flux density distributes uniformly between the magnetic steel and the target; the magnetic induction distribute uniformly within the120°direction of the target and forming two planar track typed etched channels; when the cylindrical target rotates at a proper speed, a large area of coating in uniform thickness can be deposited on the matrix. The results provide theoretical guidance for actual production of preparing medium-high temperature selective absorbing coating of uniform thickness and excellent quality.