This study explores the physical and mechanical properties of concrete with circulated fluidized bed combustion (CFBC) fly ash, ground granulated blast furnace slag (GGBFS) and coal fly ash. Five different blended cements were prepared to cast concrete specimens and the slump, unit weight (density),...

The six kinds of polyimides(PIs) containing fluorene units were prepared from 9,9 -bis(4-aminophenyl)fluorene(BAF) with various dianhydrides including 2,2 -bis-(3,4-dicarboxyphenyl)hexafluoropropane dianhydride(6FDA), 3,3',4,4'-biphenyltetracarboxylic dianhydride(BPDA), 4,4'-oxydiphthalic anhydride(ODPA),...

The present study investigates the role of 24-epibrassinolide (EBL) in inducing plant tolerance to salinity. Seedlings of watermelon (Citrullus lanatus L.) were grown in the presence of 70 mM NaCl and were sprayed with 10-6 M EBL at 7 days after transplantation and were sampled at 28 day. The plants...

Shape memory alloy is a new type of metal functional materials developed in recent decades. Because of its unique shape memory effect and super elasticity, etc., in many areas have a good application. In this paper, the basic properties of shape memory alloy and the application of shape memory alloy...

Sustainable development puts forward new requirements on building technology, improve the level of housing industrialization and modernization is the important way to realize the green building, green construction. This article from the assembled structure of production assembly to the assembled structure...

Polymers of intrinsic microporosity (PIMs) possess rigid and highly non-linear molecular structures. The contortion site of PIM-1 is provided by the monomer 5,5 ,6,6 -tetrahydroxy-3,3,3 ,3 -tetramethyl-1,1 -spirobisindane (TTSBI). The paper described the effect of synthetic conditions including catalyst...

Y2O3- doped Al2O3 transparent ceramics have been successfully fabricated by microwave sintering at the lowest temperature. Compared to vacuum sintering processing, the microwave sintering needs a lower sintering temperature and shorter dwelling time to get highly dense Y2O3- doped Al2O3 transparent ceramics...

This paper regards a kind of AZ80 magnesium alloy extrusion die as the research object to design its shape and make the systematic optimization. The results show that after optimization, the simulated extruding warpage reduced with stable dimension. By comparing the loads of dummy blocks under different...

This paper studies the effect of pre-stretching process on the residual stress and mechanical properties of EW75 magnesium alloy by OM and mechanical tests, etc. The results show that the bend deformation caused by the release of quench residual stress increases after machining into the pre-stretching...

To realize the automation of plugging bolt holes for automobile hub before the spraying process, this paper builds an automatic plugging bolt holes system, which is based on industrial robot and integrates the visual positioning technology and linear tracking technology. And then the overall system solution...

The rheological properties of Polyphosphoric acid (PPA) modified asphalt binder were investigated by the dynamic shear test, and the composition change of modified asphalt was use to analyze the improvement mechanism of rheological characteristics. Test results indicated that the complex shear modulus...

The thermostability of Cu(II)-1,10-phenanthroline complexes was studied by the thermogravimetric analysis, and their catalytic properties were evaluated in oxidative carbonylation of methanol to dimethyl carbonate. It was found that the copper coordination environments and the thermostability of the...

This paper presents the intrinsic fluorescence spectra characteristics of tryptophan, tyrosine and phenyloalanine measured with 3D fluorescence spectrophotometer. Two strong fluorescence peaks of tryptophan locate at ex/ em=230/348nm and 280/348nm, three strong fluorescence peaks of tyrosine locate at...

Large amounts of organic solvents and pure water have been consumed in conventional semiconductor cleaning technology. And low dielectric constant (Low-K) material may be destroyed easily during the cleaning process, which will also cause structural collapse of the material. All these shortcomings can...

A mass of ultrafine weakly magnetic iron minerals are produced during the processing of iron ores such as hematite and limonite, and in the most cases these fine minerals are recovered at a very low efficiency, especially for the magnetic particles below 20 m. Pulsating high gradient magnetic separation...

In this contribution, a sensitive fluorescent aptasensing strategy for the detection of adenosine is proposed based on structure switching of gold nanoparticle modified molecular beacon. Hairpin structured molecular beacon exhibits low background fluorescence since the fluorophore and nanoparticle quencher...

By selectively oxidating the cotton, part of the alcoholic hydroxyl group is oxidized to an aldehyde group, then use cross-linking agents or glutaraldehyde to make it react with the amino on collagen protein to produce imide, thereby allow the collagen firmly bind with cotton fabirc to obtain cotton...

Acetate fiber has many advantages, such as soft silk feel, after dyed bright color, beautiful, weather resistant, good drapability etc. In recent years, acetate fiber has become one of the man-made fiber industry developed rapidly. The deeply researches on the preparation of modified acetate fiber and...

This paper study the process and characteristics of the bridge structure steelQ420qE fatigue crack prefabricated. The results provide an experimental base and computing foundations for the bridge This paper studies the Crack tip opening displacement fatigue precracking experiment on steel Q420qE. The...

Red-emitting Europium( ) doped SrAl2B2O7 phosphors have been prepared by precipitation method, and its luminescent properties under UV excitation have been investigated. The phosphors are characterized by x–ray diffraction (XRD) and photoluminescence spectra. The SrAl2B2O7:Eu3+ phosphors can be obtained...

HfSiN thin films were prepared by the solid solution of HfN and SiN precursor films through magnetron sputtering. The obtained films were characterized using X-ray diffraction (XRD) and scanning electron microscopy (SEM). X-ray diffraction(XRD) measurements show that the films have amorphous structure...

The microstructure of as cast Mg-RE (Mg-Gd, Mg-Y, Mg-Gd-Y and Mg-Gd-Y-Nd) alloys and that after heat treatment were investigated. The results show that the primary solidified precipitated phases of both Mg-Gd and Mg-Y binary alloy were coarse aberration eutectic microstructure pattern. For Mg-Gd-Y ternary...

Effect of Be addition on age hardening and precipitation behaviors of Al11Si3Cu alloy was investigated by hardness measurement and differential scanning calorimetry (DSC) analysis. The age hardening results show that 0.25% Be addition increases the peak hardness of Al11Si3Cu alloy about 20HV. DSC results...

According to characteristic of Lost Foam Casting (LFC) processes and considering the metal flow pattern decomposition gas pressure impediment, interface elapse model is established base on gap pressure as boundary of front of melt flow. Corresponding numerical solution method is applied to simulate filling...

40Cr steel diesel engine connecting rod were quenching and tempering by waste hate after forging and its mechanical properties were studied. The results showed that comparing with traditional technology, the forging-remnant-heat quenching and tempering technology route for 40Cr connecting rod of diesel...

The gap of the friction pair interface is tiny for the heat pump mechanical seal, the dynamic characteristics of the fluid-film couldn’t be come true easily when using the traditional experimental test. In this paper, the 3D FEM model of the fluid-film is set up, and then the dynamic characteristics...

The performances of lubricant liquid film of groove-pores coupled mechanical seal are numerical simulated by Fluent, and the effects of depth of groove and pore on liquid film performances are analyzed. The results indicate that dynamic pressure generated by groove-pores coupled mechanical seal is higher...

This paper presents a shape adjustable C-C subdivision algorithm by introducing adjusting parameter . Based on this algorithm, this paper proposes a shape adjustable surface modeling method with explicit solutions of Bézier control points by taking 2-ring singular points as the control grid and using...

Welding experiments of DP980 high strength steel plate with fiber laser have been processed. The influence of welding parameters on welding quality has been investigated. As well as microstructure and mechanical character of welding seam has been analyzed. It is showed that the joint appearance of DP980...

In order to reveal the function of Mg on the characteristics of mechanical properties in high strength low alloy steel, the steels containing with different Mg contents were refined with vacuum induction furnace and rolled with double-stick reversible rolling mill. The characteristics of mechanical properties...

The pulp potential and flotation behaviour of fine chalcopyrite ground with different grinding media have been studied by experiments. It's shown that there exist great differences in pulp potential, oxidation species and flotation behaviour of chalcopyrite ground with ceramic or iron media. Grinding...

Unified viscoplastic constitutive equations are established in the crystal slip systems on the basis of the theory of crystal slip. Plastic dashpots reflecting the material transient response and Newton dashpots mirroring the material viscosity are introduced in slip systems to establish the viscoplastic...

In this presentation, the dielectric properties of SiO2 / BN composite is studied using the the logarithmic rule in the GEM equation.It is found that the dielectric constant of the composite material is effected by the contens of Si2N2O and temperature. And because the dielectric constant of SiO2 is...

This fabric is given priority to with plain weave, which can play a good down-proof, mainly for down jacket fabrics and development. Using superfine yarn of polyamide as raw material, making the fabric soft and exquisite, meanwhile, the weight of the fabric has been reduced so as to make such fabric...

Microwave pyrolysis is a new research method for deeply processing of low-rank coal. On basis of experiments, this paper conducted comparative study on microwave co-pyrolysis products of low-rank coal under circulating gas (CG) and N2 atmosphere, respectively. The composition and content of tar and bluecoke...

The effect of ultra-high temperature processing on the quality and flavor of watermelon juice was evaluated. The temperature of 120 and 135 oC was effective to reduce the total flora count to 2 LogCFU/ml and reduce the color variety of the watermelon juice. However, the higher temperature leaded to a...

The effect of packaging on the quality of fresh-cut thyme was evaluated. The packaging showed no significant influence on the shelf life of the fresh-cut thyme when its shelf life was 7 d. The 1-MCP and modified atmosphere packaging treatments hold the sensory features of the thyme, and avoided the loss...

The effect of refrigerator position in the same layer on the quality of fresh-cut pepper was evaluated. The temperatures of the front and rear in the same layer were different. The front temperature was about 0.5 oC higher than the rear temperature. The soluble solid content of the front pepper was higher...

Pyrolysis is a clean method for lignite utilization, and it is greatly influenced by temperature and heating rate. The reaction mechanism and kinetic model were investigated by means of Differential Thermal-Gravimetric Analyzer and Fourier Transform Infrared spectrometer. It is found that lower heating...

The current calculation method of the acid dew-point temperature of the flue gas is multifarious, and many formulas even exist obvious errors. In this paper, the representative method is used to calculate the acid dew-point temperature of the flue gas, and the Influence factors of the acid dew-point...

High temperature corrosion behavior of Ni-Fe-based Superalloy GH984G was studied in the synthetic flue gas environments with different SO2 concentration at 800 C. The microstructure and composition of the scales were investigated by scanning electron microscope/energy dispersive spectroscope and X-ray...

For underground earthen sites in humid environment, its preservation is more difficult than the ones in northwest arid region. One reason is that the changing of existing environment, especially the changing of the groundwater resulting in the local cracks and creep-sliding disease of the underground...

The treatment of anion surfactants in wastewater with the electrochemical reactor is studied in this paper. Factors affecting the removal rate were investigated,such as anode material electric current density electrolyse time electrolyte and pH etc.At the optimal conditions of electric current density...

Grouting water plugging after main inclined shaft of Dafosi coal mine engineering instance, to ensure the safety of the shaft wall in the process of grouting, for the purpose of borehole wall monitoring scheme is proposed. Using strain monitoring technique, the wellbore hydrological and engineering geological...

Diamond-like carbon (DLC) films are well known for their high hardness, low friction and excellent wear resistance. Therefore, DLC film coating can contribute to improving mechanical and tribological properties of materials. The objective of this study is to investigate the effect of solid and liquid...

In order to achieve a group of desired nutrient agent of indigenous microorganism of oil reservoir after polymer flooding in Daqing oilfield, biogas production experiments, physical simulation experiments and 16S rRNA gene library experiments were carried out. The first and second group of nutrient agents...

It is important to study the temporal and spatial distribution of water chemistry for the regional water resources management. In this study, in order to obtain the water chemistry distribution of Dou River Basin, collection and test works have been done for surface water and groundwater, and the results...

Nickel oxide/nitrogen-doped carbon nanotubes catalysts for the (ORR) were fabricated using a simple chemical plating method. Scanning electron microscopy (SEM) and Energy dispersive spectrometer (EDS) was used to characterize its structure. Electrochemical method studies show that the nickel oxide/nitrogen-doped...

The combination of diesel oxidation catalyst (DOC) and catalyzed diesel particulate filter (CDPF) is one of the most effective ways to control particulate emission. Particulate number (PN) and size distribution characteristics are studied when a heavy duty diesel equipped with or without DOC+CDPF in...

Detail components of nitrogen oxides (NOx) emissions, which is including NO, NO2, and N2O, from a national V heavy-duty diesel engine with selective catalytic reduction (SCR) were studied under different operating conditions by using Fourier transform infrared spectrum (FTIR) technology. Results show...

A wet chemical method was used in this work to produce Ba0.985Bi0.01TiO3- BaMnxTi1-xO3(BBT-BMT) materials. With increasing Mn content, the ceramic capacitors display stronger temperature stability in its dielectric behavior. The dielectric properties of the samples were measured by a LCR meter. The micstructure...

Laser-motive UAV (unmanned aerial vehicles) is a new concept UAV. Based on analysis of conservation equation of photoelectric conversion irradiated by laser energy, UAV load’s demand for power density and heat convection balance, a model is established to analyze the relationship between UAV maximum...

Arsenic is a toxic substance. The adsorption by activated carbon is generally considered to be one of the most efficient methods to remove As(V). In this paper, three kinds of commercial activated carbons (N1, N2 and N3) were used to adsorb As(V) from water. The result showed that the adsorption capacity...

Aluminum alloy A6061 and mild steel Q235 sheets were welded by resistance spot welding. The interfacial microstructure was observed and the feature and distribution of the interfacial reactant were analyzed and the effects of welding current on the nugget size and tensile shear strength of the joint...

Commercially pure titanium and stainless steel sheets were welded using resistance spot welding with interlayer of Nb. The interfacial microstructure was observed, the effects of welding current on nugget diameter and tensile shear load were investigated deeply. The results show that the interfacial...

Luminescent poly(methyl methacrylate) (PMMA) porous fibers were prepared by electrospinni-ng technology using a binary solvent system of EA/DMF and DCM/DMF. The effects of the ambient humidity, content of rare earth complex (Tb(phen)L3) molecular weight of PMMA, and the proportion of E-A/DMF (mass ratio)...

36 kinds of crops and the planting soils had been treated as research samples. All the materials came from Nandu river basin selenium-rich region. 120 research samples had been chosen to research the distribution of selenium and their effects on enrichment of heavy metals in selenium-rich regions. The...

Land contaminated by high levels of heavy metals in Tin mining wasteland is urgent to be remediated.To find out the tolerant plants which can adapt to the local climate and the soil conditions is thesystem restoration of the area. Results showed that the average content of soil heavy metals of Mn, Cu,...

Steam explosion pretreatment was a feasible method to treat sugarcane bagasse. The results showed that the hemicelluloses can be effectively removed during the pretreatment and increase the ability of enzymatic hydrolysis. The highest glucose yield was achieved at 74.99%, which was increased by 57.86%...

A chemical extraction procedure for removing extractable heavy metals Zn, Cu, Cd using organic acid as extractant has been applied to wastewater sediments collected from wastewater treatment plant. The Tessier’s five-stage sequential extraction procedure for extractable heavy metals determination is...

Industrial alkali lignin (LG) was used as raw material and ionic liquid 1-butyl-3-methylimidazolium chloride ([BMIm]Cl) was used as reaction system. Alkali lignin was dissolved into the [BMIm]Cl and modified as propyl ether lignin(HLG). Then the HLG modified lignin was used to synthesizing the lignin-based...

The NiO thin films were preapred by reactive radio frequency magnetron sputtering method on glass substrates. The influence of sputtering power on the crystal structure, surface morphological, optical and electrical properties was investigated using X-ray diffraction (XRD), scanning electron microscopy...

The nickel based catalysts were prepared by the method of impregnation. The influence of the Ni loading, the calcination temperature, the reduction temperature, the promoter on the catalyst performances in the CH4-CO2 reforming reaction was investigated. The results indicate that the Ni/SiO2 catalyst...

Magnesium alloys were welded by friction welding. The mechanical properties of the joint were investigated; the effects of welding parameters on flanging amount, wear amount and tensile shear load of the joints were discussed. The results show that the joint strength increases with the increase of friction...

Pure aluminum was welded by friction welding in this study. Friction welding of pure aluminum was performed in the fixed upset pressure and friction pressure respectively. The tensile strength of joints was measured. According to the studies performed, pure aluminum welding effect of welding parameters...

The traditional quartz processing industry is characterized by high energy consumption and low purity of product. To save energy and purify the product by a new type of furnace, it is necessary to find the best diameter range of raw material sent in. In order to study the influence of the diameter of...

A new type quartz melting furnace to avoid shortages of traditional quartz furnace such as high cost of graphite electrode, low production efficiency, high quartz melting furnace energy consumption is tested and simulated in this paper. Simulation is done as well as the experiment to test distribution...

[Objective] Recently, the interest in jatropha seeds has increased due to its high oil content. In order to study the mechanical characteristics of jatropha seeds, in this study, single factor tests, orthogonal tests were used. [Methods] Experimental factors were moisture content (MC)(7.11%~39.23%),...

The thesis explores the adsorption of 732 cation exchange resin to remove the excessive amount of iron and manganese in the low-temperature groundwater. The removal effects in different temperature and filtering velocities are analyzed by testing the effluent water quality and measuring the volume of...

A life cycle energy, emission and economic assessment model of biological butanol-gasoline blend fuel was established based on life cycle. Then, the life cycle energy, environment, and economy of biological butanol-gasoline blend fuel used as automotive fuel were assessed. Comparing with conventional...

Simulated leaching solution of tin anode slime was prepared as electrolyte to investigate the performance of cyclone electrowinning on extraction of tin from solution in this work. The results showed that Sn(II) could be extracted as sponge tin with cyclone electrowinning. Sn(IV) could be extracted as...

Phytoremediation of Pb-contaminated soil was studied with -cyclodextrin as enhancing agent using Brassica Juncea. Effects of the addition dosage and the addition time of -cyclodextrin, and Pb concentration in soil on the plant growth were investigated. Plants were cultivated in an environmental control...

Based on results of biomass combustion and pyrolysis using TG-DSC analyzer, biomass thermodynamics characteristics were studied. Integrated heat model and differential heat model were used to determined biomass thermal behavior, and the former fitted the actual better; the heat capacities with temperature...

The primary question in the debris flow initiation study is differentiation of the initiation process from other processes. This paper introduced a new experimental method and apparatus which can apply artificial rain, detect deformation, resistance and other variables. Based on the experimental data...

The influence of carbon and alternating oxic-anoxic model on sludge bulking and chemical oxygen demand (COD), ammonia nitrogen and total nitrogen removal effect are investigated under alternating oxic-anoxic model in sequencing batch reactor (SBR). The experiment performed for 23 days and 30 days instage...

In this study, two lab-scale reactors were set up and operated in this study, include a sequencing batch reactor for batch tests and a continuous predenitrification bioreactor for regular operation. Batch tests fed by Synthetic wastewater (acetate) and operated in intermittent aeration profile, demonstrate...

In this paper, thermogravimetric analysis method was studied in biomass thermal conversion analysis. Theoretical simulation and experimental methods indicated the problems existing in the traditional thermogravimetric analyzer (TGA). On this basis, a new thermogravimetric analysis platform was developed....

A new application of high resolution continuum source flame atomic absorption spectrometry has been developed for the determination of Fe and Zn in garbanzo. The selected fuel flows of Fe and Zn were 80 L/h and 90 L/h respectively, and the appropriate burner heights of Fe and Zn were 5 mm and 6 mm respectively...

As the stronger desire of human for energy and space, offshore jackets are used more and more for these. As the excellent fluid mechanics feature of the tubular member, it is widely used in jacket structures. According to the introduction of the process of casting steel joint and directly weld joint,...

Revealed the strength variation of concrete C30 and C50 after the cold in the initial .Using the gray prediction theory which from the cybernetics to analyze the test results after the initial cold.The results show that the results obtained by the formula is consistent with the experimental results,...

Based on explicit dynamics numerical simulation analysis, the static loading test and the shaking-table test, and combined with the plane RC frame collapse test, the example of the high-rise frame structure and the high-rise frame-core tube structure, collapse mechanism of RC structures under the static...

Openings on the I-shaped beam web could accommodate pipelines and therefore might cut down the project cost due to the floor height is lower. In this paper, three concrete I-shaped beams are prepared, the sole difference between their is the openings position on the beam web. To compensate the strength...

The frost-salt resistances of concrete were investigated according to the CDF methodeffects of air void systems introduced by different air entraining agent. The results showed that the frost-salt resistance of concrete increased with the decreasing of spacing factor and increasing of air content. The...

This article discusses the current development of tests about pile foundation at home and abroad. According to the difference of test purpose and content, it is analyzed that several typical test methods of the Multi-Extruded-Expanded-Plates pile. In the article, due to the imperfections existed in the...

This paper introduces the historical research on fair faced concrete, benefit evaluation system of the construction technique of fair faced concrete is studied, and the Chengdu City 2nd ring road viaduct project as an example, analyzes and expounds the construction technology of concrete benefit evaluation...

With the rapid development of cities, the building becoming larger and higher. That means the weight of building will increase , the disaster will cause a greater loss. Bearing column is the main stress components of building, determining the safety of the building under earthquake. Steel Tube Filled...

Based on choose the constitutive relationship of core recycled concrete and steel in a reasonable way. It used the ABAQUS to establish the finite element analysis mode of recycled aggregate concrete filled steel tube subjected to axial compressive. It introduced the method and process of establish the...

In order to solve the problem of water-rich loess tunnel in construction process, the paper based on the idea of underground water environmental balance, use the Kuniaki Sato empirical formula and underground runoff modulus to build correlation function, get the permeability coefficient. Then we combine...

Due to their geometry, continuous curved bridge under gravity load will produce torque, which danger to bridge structure. In order to reduce the weight of load torque, with the method of asymmetric reinforcement, this paper introduces the three forms of prestressed reinforcement, through optimizing combination,...

Microstructure and properties of Al-Mg-Si-Li alloys with different Mg content were investigated. The microstructure was observed by optical microscopy, the phases were determined by X-rays diffractometry, the hardness was monitored by Vickers, the mechanical properties were determined by tensile tester,...

The description based on the microscopic theory of sand fabric, the novel amplitude parameters decrypting the spatial arrangement of non-spherical particles is defined, and the verification with the microscopic test for Toyoura sand is conducted. The spatial arrangement of non-spherical particles form...

Aiming at the problems of disease and adverse geological section of peat soil, the entity test project, the settlement deformation law of peat soil roadbed is analyzed, and the theoretical calculation results and the actual monitoring results of test section compares the total longitudinal settlement....

A new application of high resolution continuum source flame atomic absorption spectrometry has been developed for the determination of Ca, Fe, Zn and Mn in chicken feed. Under the selected determination conditions, the correlation coefficients better than 0.998, the relative standard deviations less...

During the concrete pouring process, the long downtime would weaken the bonding strength between old and new concrete layers. The bonding parts would like to form horizontal cracks, especially winter intermittent surface in the severe cold region, of which cracks would easily propagates from surface...

The solidtosolvent ratio, ethanol concentration, extraction temperature and extraction time were investigated for extracting total flavonoids from wolfberry. The optimal conditions were found to be extracted at the ratio of material to solvent 1:20 (g/mL), 60 for 40 min with 70% (v/v) ethanol. The D101...

CFRP is widely used in the area of reinforcement because of its many advantages, but ordinary methods of past can not give full play to high-strength properties of CFRP.Therefore, new technology of concrete structures strengthened with prestressed CFRP emerges as the times require. At the same time,the...

As a renewable energy, ethanol from lignocellulosic biomass has developed technologically in many ways. Effective pretreatment can enhance the enzymatic saccharification of cellulose by removing lignin and hemicellulose from raw material. Different alkaline pretreatment technologies were studied to find...

In order to study the stress distribution features of the surrounding rocks a long the circle tunnel after the roadway excavated and the radius size of there leased circle, first analysis of the stress distribution characteristics of the surrounding rock, on this basis, circular tunnel for the elastic...

To reduce NOx emission, LnPW (Ln= La, Ce, Pr, Nd, Sm, Eu, Gd, Yb, Y; PW= PW12O40) were prepared and used for NOx adsorption and decomposition. The adsorption results showed that NOx adsorption capacity on LnPW were lower than phosphotungstic acid (HPW). After doping with HPW, the NOx adsorption ability...

Using microwave technology enhanced flocculation treatment of oilfield wastewater containing polymer .Chose the wastewater COD removal efficiency as an evaluation index, investigated four kinds of flocculants, such as AlCl3, FeCl3, PAC, PAF in the microwave irradiation and no microwave irradiation two...

FRP is new type of composite material which substitute for reinforcing steel bar in concrete structure and can solve wear problem caused by steel bar rusting.The result of its bond behavior with concrete is one of the key technologies for its popularization and application to reinforced concrete structure.We...

Using recoverable anchor cable is a good way to resolve problems about underground space occupation and waste of money . So the recoverable anchor cable applied in engineering has long and meaningful significance .this treatise uses the resistance to plucking of anchor cable in the certain unit dismantling...

A large number of coal-fired flue gas is the culprit that caused by air pollution and acid rain. Based on this reason, lime/limestone-gypsum wet flue gas desulfurization(FGD) process as the main desulfurization technology are used by most countries to control emissions of SO2,at the same time generating...

For the optically variable films series, using the boundary conditions of electromagnetic waves, we have given the propagation wave equation of S-polarized light wave in the optical variable film system with razor-thin metal film, which can be used to calculate electromagnetic field distribution and...

Considering the difference of phase-shift direction and amplitude attenuation direction when the optical wave propagates in conductive medium, with the boundary conditions of optical wave at the interface of the media, we derive the recurrence formula reflection coefficient for the S-polarized optical...

It was investigated for statistical analysis on impact toughness of welded joints between B610CF and 16MnR steel using shielded metal arc welding (SMAW) and mixed gas arc welding (MGAW) method. Low temperature(-20 C) impact toughness experiments and normal temperature(20 C) impact toughness experiments...

Composite wallboard will arise various problems of its surface quality which will affect the appearance as well as the durability of the composite wallboard if they are slight and influence the using function otherwise.This article mainly conducts systematically about the quality defects, get through...

The paper is aimed at the phenomenon of red clay subgrade disease,taking the subgrade filling from the Yuqing-Kaili Expressway as the research object,the soil mechanics as the theoretical foundation,the testing technology of geotechnical engineering as the method resrearched the change regulation of...

Rock anchor foundation is an economy and advanced foundation form which is especially applica-ble for wind tower construction in mountain area. Installation of expansion anchor head at the bot-tom of full length grouted rock anchors can serve to reduce the anchorage length and increase pullout resistance...

In the study ,the coordination of GFRP rebar and concrete working performance are studied from two aspects of theory and experiment. By Making 9 groups of GFRP - concrete standard drawing specimen standard drawing and three groups of reinforced concrete specimen ,Getting the damage characteristics of...

The nickel deposits of different microstructures were obtained by electroforming with abrasive-assisted, .The effects of friction strength on the surface morphology and the microstructures of the deposits were studied. The results indicate that the deposits with homogeneous microstructures were obtained...

Application of the Hydromechanics and the Momentum theorem, the driving critical velocity on wet pavement formula is established. It presents the tire-water-slope finite element modeling process. Through comparing the deformation rule of the loaded tire on horizontal ground and slope ground, analyses...

In this paper, 42.5 sulfate aluminate cement mixing pozzolan was used to prepare fast early strength concrete to reduce the application costs by the equivalent of cement, Pozzolan content, sand ratio, water-cement ratio investigated by orthogonal experiment method to seek meet with the strength requirements...

Application of ground polymer cementitious material can reduce resource consumption and environmental pollution. Chemical composition and polymerization mechanism were analyzed, in order to promote the research and application of the polymer materials. Technology principle of Isothermal conduction calorimetry,...

Recommended dosage and type of warm mix agent widely used at present were investigated in order to determine the technical performance of warm-mixed asphalt and its mixture. The warm-mix agent’s effect on asphalt performance were analyzed based on the three major indexes experiments of asphalt, and the...

This work reports a new method of producing nanostructure arrays on monocrystal Si wafers. During the course of electrochemical anodic etching in HF solution, nanostructure arrays formed on N-type Si wafers under laser illumination ( =650nm). A field emitting scanning electronic microscope (FESEM) was...

An amphiphilic RAFT agent was synthesized, which could polymerize with monomers as Reversible Addition-Fragmentation Chain Transfer Polymerization route. The resulting RAFT agents were characterized by FT-IR and 1H NMR. The dispersing ability of synthesized RAFT agent was evaluated. Organic phthalocyanine...

Based on the analysis of structure and working principle of the vortex microbubble generator, the generator’s prototype is made and the experiment system is established by us. Under different working conditions the experimental researches on the performance have been done. A better working condition...

For the flow control over a backward-facing step, two types of right-angle-shaped plasma actuators are specially designed with the electrodes connected in series and parallel manner, respectively. And this paper deals with the special design electrodes for avoiding the limited effects from the interaction...

Macro-mechanical properties of wet concrete are important for concrete structure design because the pore saturation in concrete has great influence on the mechanical properties of concrete. The research states of macro-mechanical characteristics of wet concrete were introduced in the filed of tests and...

Critical for flanging of square tributary junction on cylindrical steel tube is to determine the shape and sizes of pre-machined hole. In order to investigate precise shape and sizes of the pre-machined hole, an optimized design model is established. The forming process during flanging is simulated with...

The uniform design is significantly different from other categories of costume design, and the uniform design is mainly based on the industrial characteristics and principles, i.e., the uniform must adequately reflect and adapt to the characteristics of work environment, object and target. While fabric...

The formation of N-doped graphene (NG) use hydrothermal method with urea as reducing agent and nitrogen source. The surface elemental composition of the catalyst was analyzed through XPS, which showed the atomic ratio of N/C is 5.0%, indicative of the effective N-doping. The Au@Pt core-shell nanoparticles...

The plane strain fracture toughness KIC values of 2124 aluminum alloy plate of T-L and L-T orientation of thickness of 30 mm, 40 mm, and 50 mm were tested by using the standard compact tension specimen. The KIC anisotropic degree and mechanism of different thickness of 2124 aluminum alloy were studied...

There are some new water-cooled ingot caster were built in some steel plant in China for produce large flat ingot to meet the increasing requirement of the large ingot. While as the ingots become larger, there may cause many metallurgical imperfections, such as segregation, surface defects, etc. For...

The blades are the key components of industrial steam turbine, and the manufacturing of the blade is about one third of total manufacturing. Reduction of the number of the blades is will lower the manufacturing cost. In the present paper, the aim of the research is to develop high efficient highly loaded...

The mechanism of combinatorial approach was reviewed first and then the passive mixers and active mixers for discovering new kinds of non-metallic materials by the use of combinatorial approach were introducted. By active or passive mixing, combinatorial approach was used to find close relatinship butween...

This paper introduced an Antibacterial Carbon/silver film thermal fabric designed by using thermoprint and fitting technique,and introduced the base fabric selection Product specifications technological process process parameters and key technologies detailedly,then tested antibacterial property tear...

The sulfate and chloride has great significant erosion on concrete structure. To provide theoretical reference for practical engineering application, this paper describes the mechanism and influencing factors of concrete sulfate and chloride erosion briefly, then discusses the main measures to improve...

New free radical-cationic hybrid photopolymer, consisting of acrylate-based and epoxy-based photosensitive resin for stereolithography was prepared. The influence of the initiator sort and amount on the curing degree of the photopolymer was investigated. Photopolymerization process, degradation temperature,...

Biofuel is an attracted alternative fuel. While biofuel-gasoline blends are used for substituting some part of gasoline, and to some extent it is favorable to direct injection homogeneous charge combustion ignition (DI-HCCI) engine application, improving auto-ignition ability and reducing high-pressure...

Titanium alloy hydraulic tubes were weld with gas tungsten arc welding method in this work. The microstructure of weld zone and heat affected zone are clarified with metallographic microscope, And followed by tensile test and fatigue test, with stress rate R is 0.1 and frequent is 10 Hz. It is found...

The “iron-chromium-nickle-copper” black ceramic pigment was prepared without cobalt coloring agent using copper tailings and chromite waste residue replacement some of chromic oxide and iron oxide, etc. On the guaranteed of the performance unchanged, effects of cooling mode (i. e. quenching, rapid cooling...

Epoxy resins modified with low-viscosity hyperbranched epoxy were prepared. The tensile strength, flexural strength, impact strength, fracture toughness, glass transition temperature (Tg) of the cured samples were investigated. The results show that the addition of hyperbranched epoxy improves the overall...

The effect of power ultrasonic on the solidification microstructure of a newly developed Al-Ni-Zn-Mg aluminum alloy has been investigated. The melt of the alloy was treated by ultrasonic field with different powers from 0W to 850W. Without high-energy ultrasonic treatment, the eutectic Al3Ni phases with...

Water flow and number of valves turned on were analyzed in order to find out the reason of low coiling temperature at tail of strip during U-type cooling process. Result of research showed that actual value of number of valves turned on in micro zone at tail of strip was not consistent with the corresponding...

In order to study the applicability of the Fiber Reinforced Plastic (FRP) composite materials for light structure, a tensile compression test of a large number of FRP samples was carried out. Through statistically analysis of test data, we get the FRP’s basic mechanical parameters like tensile strength,...

In order to verify the influence of curing degree of retarded binder on the friction coefficient of retarded-bonded PC steel strand, 3 PC beams with 3300mm in length and 300×400 cross-section is manufactured and 3 retard-bonded PC steel strands in straight-through arrangement at each PC beam is set....

In the present study, we describe an electrochemical sensor for codeine detection by using the DNA aptamers against codeine. In the sensing protocol, a dually-labeled DNA Aptamer probe was designed to be labeled at one end with HS, and at its another end with an dabcyl as an electrochemical tag to produce...

A hysteretic loop correction (HLC) model was established by introducing the position and shape correction factors of hysteretic loop in early study (International Journal of Pressure Vessels and Piping, 86 (2009) 616-621) based on the testing data of two Ni-based super alloys of FGH95 and GH4169. This...

the application of aluminum alloy bars are widely. The main problems in the production process is coarse grain. Through the analysis of the characteristics of the metal in the process of extrusion forming, introduced the effect of the die structure on the degree of deformation and press stress and the...

Using natural dye Ginkgo leaves as raw materials, the dye liquid was extracted by microwave method, water bath method and ultrasonic extraction method, and the suck photometric of this three extraction liquid were tested. The 25 tex cannabis/mulberry fiber/wool 60/20/20 blended yarn was dyed by the extracted...

In this study, CrTiAlN and CrAlN coatings were deposited on the surfaces of M2 high speed steel (HSS) substrates. High temperature ball-on-disc tribometer was used to test the tribological properties of the coatings. The results showed that the surface micro-morphology of CrTiAlN and CrAlN presented...

The aging is a main factor which could influence the rubber damper’s properties of isolating vibration. In this paper, a kind of dampers which was managed under different aging environments were treated as the test structures. The dampers’ property of isolating vibration was studied by experiment. The...

The injection of wax pattern and the solidification of the metal are both essential procedures and having the major influences on the final dimensions. However, the main casting process steps and casting geometry affecting the dimensional shrinkage wasn’t quantitatively studied. In this study, dimensional...

Using sodium dodecyl sulfate/isoamyl alcohol/n-heptane/water as reaction medium, copper chloride as precursor, Sodium boron hydride as reducing agent, aniline hydrochloride as monomer, copper/polyaniline nanocomposite was prepared by the method of inverse microemulsion polymerization. The nano-composite...

In order to liberate “three unders” mining and improve the relationship between enterprises and government, maintaining the harmonious and stable order of mining area,on the basis of full investigation demonstrated, Yuyang coal mine had bring in a practical way of filling mining. In the practice of filling...

Bulk Amorphous alloy generates slag at the bottom of the cutting section during laser cutting, which decreases the quality of the cutting process. It’s very difficult to be cleared with adjusting the parameters of the cutting machine only. The paper takes the pattern of cross nitrogen blowing during...

A graded composite strip with elastic variation in span direction is investigated in the paper. So far, studies about materials variation in span direction are rare. Here, the strip is treated as a plane problem, and the modulus varies exponentially with span direction, and Poisson ratio is constant....

The hot deformation behavior of 70Cr3Mo back-up roll steel was studied in the temperature range of 1173-1473K with the strain rates of 0.01-10s-1, respectively. Based on the dynamic material model (DMM), processing maps of 70Cr3Mo steel at the strain of 0.1-0.7 were developed and investigated. The effects...

Ce doped TiO2 catalyst was synthesized by sol-gel method. This gel was dried at 70 during 2 hours and afterwards was calcined at 500 for 4 h. Then, the anatase TiO2 catalyst power were obtained. The 0.3wt% Ce/TiO2 catalyst is efficient and stable catalyst for the photodegradation on the 2,4-DCP solution....

The reduction and control of residual stress is very important to improve the surface quality and machining accuracy of the parts. In this paper, in order to reveal the effects of different milling modes and process parameters on the residual stress, the aluminum alloy Al7050-T7451 is used as the machining...

This paper presents a method for analyzing the tooth contact situations of a heavy-load planetary gearing based on Ansys Workbench. Firstly, a 3D finite element model of the whole gearing is established with 10 node tetrahedron elements. Then forces and loads bearing by the gearing are applied on the...

In this paper, there are two objectives in the optimisation of thin-walled structure, one of these is to reduce the total mass of the structure, and the other is to ensure the carrying capacity of the structure. The secondary objective, i.e. carrying capacity, is transformed into the optimisation constraints...

Samples of pure phase CuAlO2 and transition metal element Fe doped were synthesized by solid phase sintered method. The phase structure, optical properties and miscellaneous phase formation mechanism were characterized by X-ray diffraction (XRD) and Infrared Spectroscopy (IR) respectively. The results...

PC/ABS blend is widely used in the vehicle interior, electronic parts and accessories. In this dissertation, fracture crack properties of PC/ABS blend was studied. The specimens were prepared under various injections molding conditions, such as filling time, melting temperature and mold temperature....

Bending strain density threshold based on elastic damage theory, the j-integral based on elastic plastic fracture mechanics and Cohesion and crack opening displacement based on cohesive zone model were employed to evaluate the fracture resistance of asphalt mixture of SMA-13 AC-13 and CAM in the temperature...

Cohesion and crack opening displacement based on cohesive zone model were employed to evaluate the fracture resistance of asphalt mixture of SMA-13 AC-13 and CAM at 10 5 0 -5 -10 . Using fracture toughness, cohesion and crack opening displacement index to analyze the crack resistance property of three...

Making of free cutting austenitic stainless steels with additions of sulfur, rare earth and bismuth were investigated through comparing to the metallurgical properties and machinabilitys. The results have shown that free-machining additives exhibit the characteristic shape of spindle shaped sulphides...

Blood stains often appear at the scene of the crime. The age determination of blood stains can provide important information to speculate the time of crime. The relationship between the age of blood and the bending rigidity of blooded cotton fabric was investigated experimentally via the use of FAST-2...

In allusion to the requirements of bearing steel for ultralow T[O], Ti, analyzing the effects of slag system to T[O] by FACTSAGE thermodynamic calculation. The calculation results shows that the slag system of bearing steel should be controlled in the area that SiO2 0%~20% Al2O3 25%~45% CaO 45%~65%,it...

To meet the automotive lightweight trend, hot stamping production technology is becoming a key technology of automotive body manufacturing. In the hot stamping production line, multi-chamber furnace is been adopted for its batch of high heating efficiency. The heated blank is transported by tray-type...

Ti was diffusion-bonded to a grade of carbon steel containing about 0.13 wt% C. The diffusion- bonded specimen was then hot-rolled to a final reduction in thickness of about 71 %. There were no delaminations during hot-rolling. The cross sectional microstructures of specimens before and after hot-rolling...

This paper studys on the determination of elastic modulus of amorphous alloys by acoustic method. The method is simple and effective, convenient and fast, non-destructive and has strong practical significance. A cantilever beam structure is selected, and the non-contact acoustic measurement and analysis...

In order to develop more suitable anticorrosive coatings for hydraulic engineering metal structures, studies were carried out on the preparation and electrochemical properties of water-borne inorganic zinc-rich coatings in this paper. Through effective regulation of the type and dosage of silicate and...

Series technologies in slag-stopping like “Infrared test for slag-roughing”, “sliding plate in pushing off slag” and the optimization of floating plug have been introduced in this paper. The system operated steadily after install and trial run, have played a good metallurgy effect, and the amount of...

Effect of thermomechanical processing on the mechanical properties of low carbon cold forging steel was investigated for different processing parameters on a laboratory hot rolling mill. Fast cooling is a key factor in thermomechanical processing. The mechanical properties of specimen 2 which was fast...

The effect of grinding in different pure mineral has been generally studied. However, very little work has been done in mixed skarn tungsten. This paper describes the breakage rates of the mixed skarn tungsten from milling kinetics at a laboratory ball mill. Firstly, the breakage rates of different particle...

The application of effective superplasticizer is helpful to improve the working performance and durability of concrete. In our work, several high performance polycarboxylate-based superplasticizers were prepared by modifying the commercial products with two types of thickening agents. Their dispersion...

The hydrogel is a three-dimensional reticular polymer with high water content, which was used in various fields such as medicine, biology and environmental protection. However, the characteristic of lower mechanical properties limited its application. Therefore, the improvement of the mechanical strength...

Test method for observation of geotechnical material in structural damage has become one of the hot field of mechanics, which is the basis to establish the structural model. The authors use real time CT test of triaxial stress in undisturbed loess during triaxial shear tests - strain were studied. The...

On the basis of Ce (IV) and rhodamine B obvious light signal under the acid medium, the Ce(IV)-rhaodamine B-H2SO4 hemiluminescence system was established. In this paper, the ciprofloxacin hydrodchloride under the concentration of less than 1.0 ×10 -5 g/mL was explored, and a new determination of ciprofloxacin...

In the process of smelting metal will produce a lot of environmental pollution by gas and waste residue,here for metallurgical raw materials and direct or indirect relationship between the environment for analysis.

Introduces the dry process dusting system of converter process flow, equipment composition and function. Practice showed that the dry dust removal system stable running, high efficiency of dust collection, after purification of flue gas dust content is low, operation maintenance cost is low.

Oxygen enriched combustion technology is an important branch of greenhouse gas emission reduction technology, which has been developed rapidly in recent years. This paper briefly introduces the method of oxygen enriched combustion and the energy saving characteristics and the influence of the environment...

A new stretch forming process based on distributed displacement loading for three-dimensional surface parts is proposed, the external stretching displacement load is applied at a series of discrete points, so the flexibility of the loading mechanism is improved. The forming process can be realized by...

Thin films of FeCoB-O were deposited by reactive magnetron sputtering in a Ar + O2 atmosphere with the oxygen partial pressure RO2 varied. The dependence of soft magnetic properties and high frequency characteristics on oxygen partial pressure were investigated systematically. With the increase in RO2...

The detection of partial discharge and analysis of sulfur hexafluoride (SF6) purity in gas-insulated switchgears (GIS) is important for diagnosis and operating state assessment of the electric device. This paper introduced a method for rapid purity detection of SF6 based on one-way ion mobility spectrometry....

The backup rolls are used with work rolls and their service period is much longer than work rolls. The backup roll affects the control ability of the mill for profile and flatness of products and roll contact pressure. If the backup roll contour is not appropriate, there will be a non-uniform roll contact...

Through the milling of nickel base superalloy, this paper studies the effect regularity of surface morphology on corrosion resistance of nickel base superalloy under the condition of different milling parameters. In order to be more intuitive to characterize the surface morphology, this paper defines...

The magnetic fluid and magnetic grease combination rotary Sealing structure device have been designed, and the experimental station and process of this structure was discussed. The results shows that,when the sealing gap were 0.3mm, 0.4mm, 0.5mm and 0.6mm respectively, the pressure capacity was mainly...

Compared with traditional structures, YSZ TBCs with high segmentation crack density sprayed have exhibited a promising potential in improving TBC thermal shock resistance because the segmentation cracks increase its strain tolerance. A study is presented of formation mechanism of segmented TBC. The segmentation...

Use of turbocharger can make the energy taken by the exhaust gas be recycled again. A new further innovation of electronic aids turbocharger is made: The turbine and compressor in exhaust gas turbocharger are connected on a planetary gear mechanism with a motor. It is a new solution that the turbine,...

Polyacrylic acid (PA) was used as dispersant to disperse carbon nanotubes(CNTs) composite plating solution. Dispersion effect was characterized by measuring the absorbance value of the suspension. The relationship between the volume percentage of PA and the suspension of absorbance value was remarked;...

Cement rotary kiln calcining process is a complex nonlinear dynamic systems, but most of the time appears in the system of continuous dynamic characteristics and fluctuates around working conditions. So in this article, we established the recognizer of working conditions that fits the cement calcining...

A new method for similarity analysis of protein sequences is presented in this paper. On the basis of positions, proportion difference and various physicochemical properties of 20 kinds of amino acid in different protein sequences, representative information was extracted from protein sequence and converted...

To study the effects of different surface microtextures on the friction and wear properties, the microtextures were processed on the 45 steel surfaces by pulsed laser. It showed that the textured surfaces with pits and grooves had an effect on the storage of lubricating oil and abrasive particles, which...