High quality single crystalline VO2(A) nanowires were synthesized by a facile hydrothermal method using oxalic acid as reducing agent and polyethylene glycol 6000 as surfactant. It was found that polyethylene glycol 6000 can effectively accelerate the transformation from V2O5 precursor to VO2(B), and...

With the development of tall building, the requirements for the structural design and construction of building becomes higher and higher, especially the design of the late-poured band in underground structure and the construction measures in the projects. In this paper, taking a high-rise frame structure...

Traditional way of tea processing have staff labor intensity, low efficiency, high cost, product quality is not standardized, and mechanical processing instead of manual tea with tea very good to solve the above shortcomings, this article from mechanical processing technology of tea, Analyze tea frying...

Future satellites require higher and higher payload’s pointing precision and attitude stability, it is urgent to suppress micro vibration efficiently. This article designs a low thrust, high precision flat electromagnetism actuator. Firstly, the article designs the configuration of the actuator .Secondly,...

This paper explain the wear behaviour of composites phenolic resin with basalt powder reinforced on brake lining pads. Composite brake has been manufactured use compaction and sintering steps. The research aims to investigate wear characteristic of composite that tested using the Pin-on-disk according...

After 40 years of water flooding development, Putaohua oil formation of Xingshugang oil field had already entered the stage of high water cut, and the comprehensive water cut has been more than 92%. Not only the distribution relationship of oil and gas becomes more complex, but also the fluid property...

This paper proposes a new method in which the number of dependent constraints is determined based on the transformation parameters of the coordinate systems associated with the links of a mechanism; the number of homonymous parameters that are equal to zero is subsequently used to determine the overall...

The results demonstrate that the effect of elasticity in plastic zone on elastic-plastic fields is remarkable in many cases, while elastic volume deformation in plastic zone generally has been omitted in the solution procedures of the classical plastic theory due to the mathematic problems. The analytical...

Flexible ball bearing is used as a component in wave generator of a harmonic drive gear system. During the revolution of the flexible bearing, the races of the bearing are subjected to elastic deformation by the shape of the elliptical cam. Thus, a reasonable mechanical model is established based on...

The second-order elastic constants and generalized-stacking-fault energy surfaces for semiconductors GaAs have been predicted by using the first-principles calculations. The calculations employ the density functional theory within local-density-approximation method. The lattice constants of GaAs is 5.626Å,...

The information of coal-bed distribution, rank and gas-bearing nature of Jurassic coals in eastern Junggar basin were analyzed, and the controlling factors of coal-bed methane (CBM) accumulation were pointed out, which were coal rank, coal seam depth, and preservation conditions. The most important factor...

Many factors that affect the safety behavior of miners, it mainly focus on four major aspects of the accident caused by personal behavior factors, operating environment, equipment and facilities, economic benefits and so on. The principal component analysis method and factor analysis method are used...

With modified Sodium silicate as the main raw material, adding a certain amount of penetrating agent, reinforcing agent, pH value regulators to compound different treatment agent. Brushed different treatment agent on the C40 standard concrete block surface at different periods, and exterminated the rebound...

The environment after disasters is abominable and complicated. By increasing the wide adaptability of rescue machine to make it operate more quickly and flexibly and increase the efficiency of rescue operation. Based on investigating and analysis of the features of specific environment and functions...

This paper presents the intrinsic fluorescence characteristics of vitamin B1, B2 and B6 measured with 3D fluorescence Spectrophotometer. Three strong fluorescence areas of vitamin B2 locate at ?ex/?em=270/525nm, 370/525nm and 450/525nm, one fluorescence area of vitamin B1 locates at ?ex/?em=370/460nm,...

Least square support vector machine (LSSVM) algorithm is suitable for the data processing based on finite number of training samples to forecast the unknown data by a nolinear model. It has preponderance for solving the small sample, nonlinearity problems. Without prior information of sea waves and the...

Transplanting of plug-seedling is an important method for seedling transplanting. Considering the problems existing in the transplanting of plug-seedling, a new plug-seedling gripping device based on mechanical finger was designed using Solidworks in this paper. The device controlled the rotation and...

Clutch system influences the clutch pedal force of an operator in accordance with the characteristics of each part. Hence, the purposes of this study are to establish a mathematical model on the diaphragm spring of clutch cover and to identify the basic characteristics for each mathematical model. Also...

Reliability analysis of uplift stability based on the first order second order method for digged foundation in gravel soil has been made by non-dimensionalization for ultimate state equation and combining with the test results. The ratio of test value to calculated uplift capacity Kp that reflects the...

The desiccation cracks can be often observed on dry-out soil surfaces. These cracks have a net-like structure and tessellate the surface of the material into polygonal cells hierarchically. The size and the shape of these cells on the final pattern change systematically depending on the specimen thickness...

A novel kind of metallic phase diagram determinator has been developed in order to deal with the problem of original determinator big thermal inertia and bad temperature control. Which is used by the electromagnetic heating technology. The determinator has many functions such as temperature setting,...

In industrial processes large amount of cost and pollution produced are derived from the process of removing lignin (delignification) to make high-quality paper through the chemical pulping process. Rynchophorus ferrugineus are wood-feeding insect that have the capacity to degrade wide range of lignocellulosic...

Filter aids have been widely used in air filtration system in order to fulfill the needs to expand the lifespan of the fabric filter as well as to improve the collection efficiency of particles during filtration and separation operations. The efficiencies of PrekotAC that consists of a different combination...

This paper presents the theoretical and experimental performance of MR-deDuster as an axial entry multi-cyclone system. Collection efficiency and pressure drop across the unit were measured under various operational conditions of inlet velocity and dust loading. Two different diameters of vortex finder...

This paper presents breakdown test of Polyvinyl chloride hard (PVC), Polymethyl methacrylate (PMMA) under non-uniform electric field in transformer oil. PVC and PMMA are placed between point-plate electrodes. The result of the experiment shows that the breakdown voltage of point-plate electrodes is lower...

According to the characteristics of the shell body and the Deformability of 30CrMnSi, the near-net forging technique is obtained by choosing the preforming process, formulating the drawing of cold ironings and the drawing of warm forgings, designing the cold ironing die set and the warm forging die sets....

The liner of a high speed combustion chamber is subjected to high thermo-mechanical loads. Active cooling of the high speed combustor liner by using hydro carbon fuel is seen as a viable option due to its weight efficiency. But choice of the channel configuration has to be optimum. Two channels shape...

The electric arc furnace is an important smelting equipment in modern iron and steel enterprises. However, the load of electric arc furnace is a typical impactive and nonlinear load, and it has a huge effect on power system, electrical equipment and enterprise production. Based on the theory of peak...

Damaged rolling contact bearings generate vibration. These vibrations may be measured and separated from other vibrations in a machine to analyze and interpret the condition of the bearings and other associated problems. The envelope technique is used to measure the magnitude or energy distribution of...

In this paper, we studied the control effect of irregular structures with translation-torsion coupling response under earthquake loading by using semi-active control method. On the base of traditional resistance design method, we couple magneto-rheological fluid damper (MR) and tuned mass dampers (TMD)...

This paper introduces the overall architecture of coal mine intelligent monitoring system. Focusing on two key issues of intelligent control and ZigBee wireless sensor networks were studied. Coal mine intelligent monitoring system can be used to monitor the concentration of carbon monoxide, carbon dioxide...

According to the problem that horizontal current in the metal pad of aluminum reduction cell induces waves of the electrolyte-metal interface, this paper reports on assessments of the horizontal current elimination effects by using slotted cathode and heightened collector bar as well as their combination....

Wind power is an important part of the new energy in the rapid development of the world. Wind turbine tower play a role for wind power and normal production safety. In this paper, using a power of 5MW horizontal axis wind turbine as a prototype, design a new steel concrete lattice wind turbine tower....

The surface chemistry of anisotropic etching of p-type Si-wafer (400) is reviewed and the anisotropic chemical etching of silicon in alkaline solution using wetting agent were discussed. The main factors which affect the production of silicon dioxide layer on crystalline silicon as a result of wet alkali...

Intelligent material is widely used in the semi-active vibration control systems due to its the advantages as simple control, responding quickly, easy control of characteristic parameters, low power consumption and strong robustness. In this paper, the damping device for machine tool based on intelligent...

To study the dynamic effect of the prestressed braced steel moment frame caused by the sudden loss of a cable bracing, the instantaneous loading method is adopted to calculate the dynamic response of the remaining structure during and after the rupture of the cable with the simplified theoretical model...

Crashworthiness design draws considerable attention and interest in energy absorption systems. An optimal design of circular stepped tubes based on free inversion is presented in the current work to improve and enhance the crashworthiness characteristics under axial impact loading. Circular tubes have...

In modern cities, power distribution systems are very complicated systems consisted of 3-phase lines, 3-phase transformers, electric poles, etc. and those facilities are distributed among lots of buildings, roads, and trees. Tracing technology of transformers and wires is a challenging issue. Power line...

The voice coil motor is a device motivated by electric current. It is creating force by Lorentz force principle generated by interaction of the current and magnetic field from magnets. The voice coil motor has been used for various purpose such as speaker, actuator, and etc. Especially, there has been...

In recent years, research on BIM standards, practical application and barriers have been made certain progress by researchers and practitioners, but research on the key factors that affecting whether companies to adopt BIM or not are rare. Within the TOE&RC framework which is based on TOE framework,...

As the rapid development of economy and electricity, it is particularly important to research about improving the exiting transmission capacity of transmission lion on the premise of safety. Compared with conventional conductor, ACCC conductor has low sag, high current carrying capacity, but the design...

Cellular concrete (CC) is a foamed mixture of cementitious materials, fine sand, and water, which once hardened results in a consistent, lightweight concrete containing millions of evenly distributed, uniformly sized macroscopic air-voids of approximately 0.1 to 1 mm size. In the present study, cellular...

In the economic development of port-surrounding regions, there exists a strong correlation among port, city and industry. They depend on each other and influence each other. To study regional economy in port, we must take port-industry-city complex system (PICCS) as the research object. By means of the...

The Fukushima accident pushed nuclear energy into dark criticism. Five years after, Japan is still faltering in its response to phase out nuclear. Global generating electricity from nuclear has decreased. Unfortunately, capital costs for renewables continue to fall, but costs of nuclear power keep rising....

The corona discharge of EHV transmission lines in high altitude area is very serious. Based on the Jiantang-Yulong 500kV power transmission project, we using Ansys software to calculate the surface electric field of 500 kV double circuit AC transmission line insulator and fittings. We get the voltage...

This experiment used high-efficiency, wide-coverage and long-range power sprayers to spray pesticide solution during the later stage of rice growth. It measured the quantity of pesticide sediment, then analyzed and studied the distribution pattern of pesticide sediment on the rice plants and the sediment...

The copper-plated veneers made in short process pretreated with NaBH4 are used as the test pieces to measure and analyze the color and glossiness of electroless copper-plated birch and fraxinus mandschurica veneers before and after the coating with the spectral colorimeter and the digital glossmeter...

In this paper, we compared, through experiments, the hysteresis characteristics in the load of the push rod, that is generated in the booster cylinder according to the time of the instantaneous actions made by the driver in stepping on and releasing the clutch pedal. In addition, we performed separated...

MFC aerogel was prepared, magnetic nanoparticles (MNPs) were loaded in the aerogel. MNPS were obtained successfully in the matrices without adding any other binders. The aerogel MNPS size was defined by TEM. The thermal-stability was marked by TGA. XRD was examined to define the particles of Fe3O4. This...

The existing linear structured light sensor system calibration process to the equipment requirement is high, the calibration process such complicated problems, this paper puts forward a simple calibration method. Use of the most commonly used transit system, back light reflection artificial materials,...

In order to change the shortcoming of bonding steel plate method, which can’t improve the stress state of the original structure, this paper analyzed the causes of diseases of the composite box girder bridge at Yancheng east interchange bridge, compared and analyzed the difference between the bonding...

Traditional forms of Hydraulic Clamping System is applied in the Automatic Machining System of machine tool in the past , however its defects are obviously such as relatively complex speed control circuit , large loss of pressure keeping and so on. Aiming at these defects in this paper puts forward a...

In this paper, the parameter estimation of thermal dynamic discrete-time system for heating, ventilating and air conditioning (HVAC) is studied using recursive least square method. Parameters are estimated by using recursive least square method. Thermodynamic model of indoor test bed is formulated by...

At first, this article summarizes several methods of the current multi-robot formation control and introduces the basic idea of formation control algorithm based on leader-follower. Then the control algorithm is introduced into switching control process (the forming of the initial formation, maintenance...

In order to research the torque converter lockup process and improve the quality, the lockup process system of Electronic Automatic Transmission is analyzed. The lockup process is analyzed detailed and the rule of lockup process is gotten and at the same time the rule of clutch fill-time/ramping off...

This article is based on zero order optimization method, proposed a method for optimization design of stiffener in the cylindrical structure. Use APDL to make a computer program to solve this problem. There is a series of work in this program including modeling, loading, post processing and optimization....

In order to study the heat insulation and indoor light adjusting ability of fabric, the optical properties of usual shading fabric were tested using spectrophotometer which measurement range is 190nm~3300nm. Under different open porosity, the ultraviolet transmittance, solar direct transmittance, solar...

Based on the construction technology of post-grouting, the load transfer mechanism, bearing capacity increasing mechanism and variation of pile-side and pile-toe resistance of combined toe-and-side grouted pile are analyzed. The mechanism of increasing of pile-side resistance and pile-tip resistance...

A new modeling method of wall thickness is put forward and the multi-axial fatigue life of bellows is acquired. The finite element mode is built considering the varied bellow’s wall thickness. The test results show the mode is reasonable and the precise strain is got. Based on the result of the upwards,...

Estimation of the fatigue life of pipelines under the random load was carried out. The power spectrum density of the stress on the dangerous location was calculated by the finite element method. The frequency method was implemented into the vibration fatigue life prediction. The applicability of the...

In this study I-V characteristic, temperature dependence of resistivity, thermopower, were investigated for thin films on the basis of Ge2Sb2Te5 doped by Bi. Resistivities, ratio of the resistivities of amorphous and crystalline states, activation energies of conductivity, temperature of phase transition,...

In this work mechanism and kinetics of crystallization for thin films on the basis of Ge-Sb-Te-Bi and Ge-Sb-Te-In perspective for phase change memory application were investigated. Possible data processing and storage times of the PCM cell were estimated. It was shown that PCM cell based on Ge2Sb2Te5+0.5...

The LMD is a new method for analyzing non-stationary signals. It can decompose complicated signals into a set of single-component signals, each of which has physical sense. However, performing the LMD will produce end effects which make results distorted. After analyzing the reasons for these, the article...

This paper investigates a method to locate important facial feature points with small training samples. Firstly, the facial feature points are divided into several categories, then these various feature points are trained by LMBP neural network to get each sub-network. Outputs of these sub-networks can...

Article briefly describes the application of CFD simulation technique and experimental validation in the development, improvement and optimization of flotation machine, meanwhile the paper designs an injector used for compound flotation machine according to working principle. The conical injector with...

In order to solve the problem of low-frequency vibration isolation, a new vibration isolator with quasi-zero-stiffness characteristic was designed and the relationship among design parameters was analyzed. Dynamic behavior was calculated based on harmonic balance method and simulation of the vibration...

Electric inertia unit can have an impact on electromagnetic force generated by induced current through regulating the value of load resistance. The electromagnetic force can be precisely controlled to restraint the motion of the piston. The proper electric inertia unit for the Free-piston linear alternator...

This paper presents a dry separation system for thermal coal sorting in which the major grading equipment don't need to water, to avoid the shortage of the traditional wet separation process along with the complex slime water treatment systems, simplifying the process, and reducing the costs, meeting...

In the social life, people often face a wide range of scheduling problems, such as appraisal of excellence, race rankings. These are often hot and sensitive issues, so the research of this type of problems has practical and economic value. But due to socio-cultural diversity and pluralism of values,...

Human thirst for exploring their body's internal structure for a long time, but it was the invention of CT and MRI technology which appeared until in 1970, that made the desire of people exploring the internal data of their bodies come true. And the basic method so-called chromatography imaging rely...