A scale-invariant shape feature is proposed. The shape feature is extracted on gray voxel models by a SIFT-like algorithm to describe the local shape information of 3D models. Shape feature vectors are constructed by a BoF method. A distance function that supports the part-in-whole matching is employed...

Purpose Observed and analyzed the curative effect of Shenqi two thistles Er Zhi decoction in the treatment of IgA nephropathy of qi-yin deficiency. Method Used 80 cases of IgA nephrosis patients treated in our hospital from January 2012 to January 2014 as the research object, divided into two groups,...

With time developing, tobacco vein spot disease is a very common and serious infectious disease in tobacco plants, and is one of the most serious diseases of tobacco in the world. Tobacco vein spot disease is becoming more and more epidemic outbreak around the world and has already attracted extensive...

The State Administration of Grain has released the Suggestions of Popularizing the Utilization of High-Tech in “Eleventh Five-Year” In Grain Industry and the Comments And Suggestions of Mid-Long Term (By 2020) Scientific and Technological Development Plan of China’s Grain and Oil, and has vigorously...

Purpose: analyze the pathological features of pancreatic endocrine tumor and discuss the differential diagnosis of pancreatic endocrine tumor and pancreatic acinic cell carcinoma. Method: choose 10 patients of pancreatic endocrine tumor from the Chinese Medicine Hospital of Henan Province and the Tumor...

Stellite is cemented carbide to resist a variety of wear and corrosion and high temperature oxidation. This paper introduces a series of domestic Stellite alloy intelligent processing methods. In China, Stellite alloy academic research is not very popular, but many of them have representation. These...

To observe the Forsen source herbal tea of reserpine in mice model of spleen deficiency of gastrointestinal effects. Mice were injected with reserpine injection to each mice by 0.1mg / kg in 17 days with continuous subcutaneous injection molding, mice dranking water solution respectively at the same...

Objective:To study effect of total flavonoids of Epimedium on climacteric depression model. Methods: In addition to the blank group, other rats climacteric models, total removal of the left ovary, the right ovary removed 80%. After the injection of penicillin to prevent infection, continuous injection...

The objective of this experiment is to investigate the effect of Maozhaocao polysaccharide on the thymus and spleen of Immunosuppressive Model Mice. Study the Immunosuppressive model of mice by using cyclophosphamide, for the large, medium and small dose of Maozhaocao polysaccharide, Mushrooms polysaccharide,...

The bridge expansion joints is to adapt to the structure deformation of the bridge, the across device between the bridge structure each couplet of the beam end and the beam end and the abutment back set free deformation. Its role is to ensure that the bridge span structure under temperature change, concrete...

By optical microscopy, SEM, XRD, EDS and EIS, study the corrosion behavior of copper in Qingyuan rural atmospheric environment. The results showed that: after exposure in Qingyuan rural atmosphere, copper has corrosion. With time, the corrosion products increased, and gradually cover the surface of the...

This paper takes flavonoids the Mountain chrysanthemum leaves contained as the research object, using ultrasonic to extract total flavonoids and using response surface methodology to optimize flavonoids of mountain chrysanthemum leaves extraction process. The experiment use normal pressure silica gel...

Epimedium is a kind of traditional Chinese medicinal materials, which is regarded as, at present, the one of the most valuable medicinal plants in China. The chemical components of Barrenwort mainly contain flavonoids, phenol glycosides, chromones, phenylethanoid glycosides and steroids, which are verified...

With the rapid development of global economy, it emerges increasing consumption of human society, fossil energy and other non-renewable energy will become increasingly depleted. While accelerating the development of new energy sources, attaches great importance to energy conservation has become the consensus...

Deproteinized calf blood extractive is a cellular respiration activator. Its main role is to enhance the cellular pharmacology of oxygen and glucose which is to be uptaked and utilization. It enhanced ATP synthesis and promote the delivery of nutrients to promote tissue repair and regeneration. The drug...

Phase change materials and traditional building materials can be combined into new building materials which have regenerative and thermostat function, it has a large energy density and heat absorbing approximately constant temperature and it can effectively maintain comfortable indoor environment and...

A three-dimensional model of LTCC microwave component was built by the finite element software ANSYS, and the influence of LTCC laminating process parameters to vertical interconnection column misalignment was studied by simulation analysis. Results show that the closer to the edge of component, the...

A deployable mechanism applied in the aerospace with twist springs and links driving, locking function is described in this paper. Dynamic analysis on this mechanism has been presented, and dynamic simulation has been implemented following the results of analysis, the dynamic characteristics of mechanism...

LTCC microwave component has small spacing between lines, the tiny deformation in sintering will affect the mechanical properties of components seriously. This paper established a 3D finite element simulation analysis model of the LTCC microwave component with micro-channels by using the software ABAQUS,...

With the development of space technology, the large diameter long-life of the space telescopes became more and more urgent. This paper mainly discussed the feasibility of the space telescope on-orbit maintenance for science unit module. This paper took the WFC3 module of the Hubble space telescope for...

From the beginning of the last century, the sugar industry has been undergoing reform and advance. In the global economy, the traditional sugar industry chain has been unable to promote economic development, and this development is not based blindly on raise sugar content and sugar yield of sugarcane....

Immobilized microorganism technology is one technique of the effective biotechnology for wastewater treatment.It has the advantages of the seed culture of bacteria with high activity and stability the reaction easily controlled low amount of sludge produced and removal the organic matter and substances...

This paper presents an approach to work with the process life-cycle of the U.S. Department of Defense Architecture Framework (DoDAF), and extend existing architecture description process and artifacts within DoDAF that match the scope of the ADD life-cycle phases to enhanced system life-cycle development...

The mechanical properties and durability of concrete with or without ultrafine fly ash were studied by measuring the compressive strength and determining the chloride ion penetration and open porosity of concrete. The results show that the addition of ultrafine fly ash reduces the compressive strength...

Bioleaching experiment was carried out in 80L SBR reactor with sewage sludge collected from each treatment step of the wastewater treatment plant (WWTP) system, to investigate the transformation of heavy metals during bioleaching. The corresponding changes in pH, oxidation-reduction potential (ORP) and...

Clear the connotation and concept of equipment SoS and core support capabilities. Core support capabilities for the evaluation from the evaluation parameters and evaluation methods two aspects, analyzed characteristic and research progress on the core security capabilities systematically and summarized...

The structure parameters of a new heterocyclic aramid fiber (F-3B) and the Kevlar-49 fiber were characterized using wide-angle X-ray diffraction (WAXD) in detail. The tensile strength and modulus of aramid fibers were determined by monofilament tensile experiment. And the correlation of structure parameters...

For effective use of conducting polymers, a hybrid film composed of poly (3,4-ethylenedioxythiophene) : poly (styrenesulfonate) (PEDOT:PSS) and poly (3,4-ethylenedioxythiophene) (PEDOT) has been fabricated by a in situ polymerization method. Each component in the hybrid film provides unique and crucial...

In this paper, the influence of steel slag on the compressive strength, permeability to chloride ion and carbonation resistance of steam-cured concrete was investigated. The results show that for steam-cured concrete with water to binder ratio (W/B) of 0.45, replacing 30% of cement by steel slag tends...

Acrylamide as functional monomer, N, N'- methylene-bis-acrylamide as crosslinking agent, prepared lysozyme (Lyz) molecularly imprinted polymer hydrogel and UV spectrophotometer Adsorption of polymers It was characterized. The results showed that polyacrylamide hydrogel successfully formed a lysozyme...

Organophosphorus pesticides (OPs) are some of the most prevalent pollutants in the total environment and receive more and more concerns as a group of ubiquitous potential persistent organic pollutants. Using the variable selection and modeling based on prediction (VSMP), the molecular electronegativity...

Three kinds of floating beds of aquatic plants floating bed with new types of fiber packing (A), aquatic plants floating bed with elastic packing (B), aquatic plants floating bed were established. The effect on the pollutant removal efficiency in wastewater from farmer household tourism at shiyan baierhe...

The influences of trace water on electrochemical performances for lithium ion batteries are investigated by adjusting the trace water in the electrolyte. Electrochemical performances and AC impedance spectra are tested after the first process of lithiation. Results indicate that the battery comprehensive...

LiNi0.5Mn1.5O4 has been synthesized by carbonate co-precipitation method in which we got the precursor that was pretreated with H2O2 (an oxidant), in order to oxidize part of Mn2+ to Mn4+,results in a decrease of Mn3+ in the structure. Result in the average valence of Mn is approximately 4 in the LiNi0.5Mn1.5O4...

The phase transition behavior of PBA films under CCl3 vapor at different temperatures was investigated by atomic force microscope (AFM). The height and phase images indicate CCl3 vapor will induce single crystals grow on the surface of PBA film. The vapor induced newly formed PBA single crystal could...

The mechanism of 4-(1-phenylvinyl)pyridine hydroformylation with HRh(CO)(PH3)3 as active catalyst has been proposed and discussed by B3LYP. Also, the regioselectivity and chemoselectivity are investigated by calculations and excellent agreement with the existing experimental results is displayed. It...

In this paper, the design methods of cruciform specimen of biaxial tensile testing are summarized. In order to study the stress and strain distribution of sheet metal under plastic deformation stage, the specimen shape is designed according to the principles of stress–strain distribution homogeneous...

Cerium-rich rare earth oxides nanoparticles were extracted from bastnaesite concentrate by first leaching, alkali fusion with NaOH, and second leaching process. The effects of the hydrochloric acid concentration, mass ratio of solid to liquid, leaching temperature of the leaching process and the NaOH...

Zeolite, haydite, tire crumb, volcanic and vermiculite were selected as potential substrates of constructed wetland. This study investigates the adsorption of the mixed substrates for removing nutrients. A series of batch test experimentations was performed. The results indicate that there is an obvious...

Standalone Beidou satellite navigation system cannot achieve the high positioning accuracy when the signal is obscured. An improved filtering algorithm based on Extended Kalman filter (EKF) is proposed after comparing the advantages and disadvantages of the filtering method. Navigation parameters from...

A ZJ-type high pressure lubrication pump is analyzed by multidisciplinary design optimization (MDO) method, where data are sampled via optimal Latin hypercube experiments, and the response surface models (RSMs) for the plunger piston and cylinder body of the pump are built. Lightweight design of the...

In order to verify the rationality of the straight pipe's design for the ultrasonic heat meter calibration device, the Computational Fluid Dynamics(CFD) was used to the simulation for the DN25 heat meter, the straight pipe length of the domestic typical structure ultrasonic heat meter was determined...

The test study, the use of re-election - flotation processes can be efficiently recover copper, tin, sulfur, comprehensive utilization of resources to achieve the purpose. From ore analysis, the mine oxidation rate, up 43.46%, is a copper oxide; active copper is high, reaching 20.03%; other metals iron,...

Steel corrosion in concrete is a process of electrochemistry. When chloride content at the steel surface exceeds the chloride threshold level (CTL), the steel begins to corrosion. The CTL is one of the key parameters needed for service life prediction of concrete structures. Based on the electrochemistry...

From Part 1, the experimental data of chloride threshold level (CTL) are obtained. With the experimental data, the mechanism of influence of temperature, pitting potential, w/c ratio and air-entraining agent on CTL are discussed in this paper. Lower temperature causes higher CTL by reduce the rate of...

Since there exists plastic zone on the crack tip of reinforced beam, it is impossible to use crack instability criterion for brittle materials. Based on the theory of fracture mechanics, by using D-B model and considering the actual construction conditions, this study puts forward a COD criterion-based...

The aim of this study was to evaluate the effect of biogas slurry inoculation on semi-dry anaerobic co-digestion of swine manure and rice straw, focusing on biogas production and kinetics. Biogas slurry from digested swine manure was applied as inoculum, and the effect was evaluated in batch reactors....

The coal pillar self-heating process of the 16# coal seam, which lays above the 18# coal seam that being mined in Dongrong 2# coal mining was examined. The cause of upper pillar spontaneous combustion during the mining of close distance coal seams was analysed. According to the distribution characteristics...

It is meaningful for evaluating carbon emission of battery packs of electric vehicles in their whole life cycle. In this paper, we give a new method to estimate carbon emission of battery packs in their life cycle. The method aims at evaluating carbon emission of different kinds of battery packs and...

Adsorption of Co(II) on synthesized chitosan-g-poly (acrylic acid) hydrogel was investigated, using batch adsorption technique under different experimental conditions of equilibrium pH, concentration of common competing ions, contact time and temperature. The Langmuir adsorption model fitted the experimental...

Controlled degradation of poly-hydroxybutyrate (PHB) can be obtained by alcoholysis with two types of alcohol in the presence of p-toluenesulfonic acid as catalyst. PHB oligomers terminated with free hydroxyl groups were prepared in this way and characterized using NMR, DSC and TG analyses. The degradation...

D-glucosamine is an important chemical compound in industry. Exo-β-D-glucosaminidase (EC number: 3.2.1.165) is a potential enzyme which can be used in production of D-glucosamine. In this study, an exo-ß-D-glucosaminidase from the hyperthermophilic archaeon Pyrococcus furiosus was cloned and expressed...

In order to improve the surface quality of KDP crystals, the factors of process parameters on surface quality of KDP crystal was researched the KDP crystal was machined by quadratic regression rotation optimization method and single point diamond turning technology.On-line monitoring the surface roughness...

Using single point diamond knife and quadratic general regression rotary unitized design to do cutting experiments of special crystals (KDP crystal), and using acoustic emission technique to collect signal of KDP crystal with different surface waviness, measure and analyze the test results. By frequency...

The camshaft grinding is precision machine tool. This paper discusses on the necessity of finite element analysis. This paper briefly introduces the camshaft grinding machine structure, and compared the emulation of grinding and tangent point tracing grinding camshaft two grinding methods, The benefits...

Taking a certain type of precision ultra-precision CNC grinding machine as an experimental platform, the research uses Renishaw XL-80 laser interferometer in testing the machine tools positional accuracy and repeat positioning accuracy in the before and after position of error compensation. Through the...

This paper focus on simulation on mechanical property of platform wagon GCG-I coil steel pallet by using computer simulation technology and compare calculated value with the result in actual situation. The dimension model is built by SolidWorks. The value of various parameters is determined by the force...

The emergence and development of BIM technology to improve the construction quality and construction efficiency , reduce the construction cost and contract dispute provides a technology platform. This article embarks from the technology diffusion of the Bass model, by 19 kinds of information technology...

Modeling of the turbulent convective heat transfer to supercritical pressure fluids in horizontal circular tubes is achieved through an integral approach, and a traditional mixing length turbulence model is employed into the numerical scheme. Based on this model, heat transfer of supercritical carbon...

In this paper, we studied the disk radius R graphene quantum dots of electronic spectroscopy by solving the Dirac equation of electron. We obtained two shapes of armrest and saw boundary of graphene quantum disk electronic energy level in the situation of whether with applied magnetic field or not, along...

Conflicts between the parties have been increased due to multiple accidents between vehicles and two-wheelers. The main problem lies to the responsibility identification in the accident. Speed collision by applying to scientific and accurate accident reconstruction is an important part for the responsibility...

Product design is very important in the process of product development. The traditional process is to carry out experiments and evaluation by the physical prototype, and the development cycle is longer. Virtual reality equipment can avoid these processes, and then simulate the process of product design...

Intelligent machine tools are fundamental to realize manufacturing technology and equipment modernization, and are the workhorses of modern equipment in the manufacturing industry, and are of great significance for the further research of intelligent machine tools. A framework of intelligent numerical...

With the progress of science and technology, product parts machining processes are more and more difficult, and the machining accuracy is becoming higher and higher. The application of multi-axis linkage machining center is the main way to solve these problems. As a major means to solve special-shaped...

To study the cargo motion and sway characteristics of tower cranes to find effective methods to suppress the cargo sway and to position the cargo, we modeled the cargo sway, and then analyzed the equilibrium states of the cargo sway. The research results show that the center line of the cargo pendulum...

Heterogeneous chemical reaction on the surface of the atmospheric fine particulate matters not only involves the chemical and physical properties of fine particulate matters itself,but also with the concentration of trace gases in the atmosphere and environment are closely related.To study the reaction...

Completion packer slips have the effect of supporting the packer by anchoring and locking packer rubber in high temperature and high pressure (HPHT) wells, which are an important component for ensuring the reliability of the packer. There are interactions when slips and casing contact with each other,...

Numerical calculations for the damping effect of foam concrete cushioning layer in crossing high-speed railway tunnel were carried out, based on the fluctuation theory using the Newmark implicit integration algorithm and he Lysmer viscous boundary condition. Then the measure’s damping effects were evaluated...

We construct a micro rotor-craft controlling method based on hand gestures of natural interaction behavior. In order to control the micro rotor-craft flight attitude by hand gestures, we obtain the hand palm flat attitude data by Leap Motion controller,and transform the data into rotor-craft attitude...

Quadrotor aircraft has become the forefront and hotspot in the research of the aviation industry. At present, the study of the quadrotor aircraft mainly concentrated in the category of electric quadrotor aircraft. But the electric quadrotor aircraft has a relatively short range and small payload, mainly...

In the research of the linear motion of the gear drive mechanism, the measuring platform of the gear rack is designed in order to measure the linear error. using servo motor directly drives the gears on the rack. using servo motor directly drives the gear on the rack, and is based on the motion control...

Traditional branches chopped finely chopped device volume is larger, cutting tool wears, big impact.This article is based on the shortcomings of traditional cutter, and put forward a kind of reduced chopped device volume, reduce the impact and abrasion of involute arc type knife knife plate.After the...

In this paper,Analysis and study of various kinds of internal and external treatment instruments of knee, Sum up the advantages and disadvantages of the same products and puts forward the design idea of X/O type leg correction bed with safe, low cost and physical external forces. Combined with the biomechanical...

Based on the analysis of ceramic sanitary ware products, energy, we put forward a substrate for the energy-saving bathroom wollastonite product development process, and the establishment of a carbon accounting model emissions, carbon emissions were compared to verify the order Wollastonite value of carbon...

The method of controlling exhaust gas uses cross-section controller to increases the rotational speed of the turbine or uses composite pressurized way to improve working conditions at low engine supercharger requirmente. Through analysising the exhaust gas flow path of the working chamber casing airflow...

This paper for red Liulin coal mine underground complex production environment combined with actual shipped, designed a set based on the arm of the coal mine trackless rubber tyred vehicle inspection control system. System can be detected by the vehicle detector in coal mine underground without trackless...

The tunnel structure life-cycle includes construction period, service period and aging period. Something dangerous maybe happened in the event of stress balance weight distribution of tunnel structure changed and the continuous development of shotcrete and bolt strength during construction. During service...

Systematically introduce the research situation and development trends of the analysis method of slope stability at home and abroad, Focus on the two kinds of calculation methods and critical slip surface searching method based on the limit equilibrium theory and numerical analysis, And it also briefly...

In order to the research on the diffusion of the particles in street canyons under elevated roads, field measurements of the diffusion of respirable particles were carried out, which conducted at different heights, atmosphere temperatures and the vegetation coverage. At the same time, the correlation...

Finite element software ABAQUS was used to calculate the dynamic characteristics of Xi’an Xiao Yan pagoda by a three-dimensional entity model, and a variety of factors were simulated on its dynamic characteristics. Results show that it is feasible to calculate the structural dynamic characteristics by...

In the accident reconstruction, the measurement is often performed according to the accidents information left in the scene of the accident, such as collision point, braking traces, scattered ,fallout, the throw distance of the body, the throw distance of the two-wheeler, etc. With the aid of these effective...

NOX pollutions affect our social manufacture and human being living, which has caused the extensive attention. NH3-SCR (selective catalytic reduction) has been largely studied to reduce NOX pollution. Most people focus on catalysts under N2 and inert gases atmosphere, while few people research on the...

We analyzed the seasonal variation, horizontal distribution, vertical distribution and background value of cyanide in the bay mouth of Jiaozhou Bay in 1983. Cyanide contents in the bay mouth were changing a lot by means of vertical water’s effect. Cyanide contents in both surface and bottom waters were...

Based on the investigation data on cyanide in bottom waters in the bay mouth of Jiaozhou Bay in 1983, we analyzed the contents, pollution levels, and distributions of cyanide. Results showed that cyanide contents in bottom waters in 1983 were 0.02-0.34 g L-1, and were much lower than guide line of cyanide...

Based on investigation dada on petroleum hydrocarbon (PHC) in July, August and October 1984 in Jiaozhou Bay, we analyzed the content, distribution of PHC. Results showed that PHC contents in 1984 in surface waters were 0.01-0.16 mg L-1 and were meeting Grade I (0.05 mg L-1), II (0.05 mg L-1) and III...

Several different Li+-imprinted gels were prepared by different precursors. And the gels were characterized by textual properties and point of zero charges (PZCs). The adsorption of Li+ from their aqueous solutions by the gels was investigated. The surface areas of the gels were found to range from 60...

Thermal dissolution (TD) of Shengli lignite was carried out in isometric solvent of methanol and ethyl acetate (EA), methanol, and EA to offer the thermally soluble fractions 1-3 (F1-F3), respectively. F1-F3 were analyzed by gas chromatography/mass spectrometry and direct analysis in real-time ionization...

A new particle-type polymer SMG is developed in high temperature and high salinity reservoirs. This technology is one kind of deep profile control techniques which can remarkably improve oil recovery in the oilfield. Rheometry is the main characterization method of chemical agents in deep profile domain,...

SCR (Selective Catalytic Reduction) technology is the most effective after-treatment technology of DeNOx on vehicle diesel engines. In this paper, a modeling of vehicle diesel Urea-SCR after-treatment system was set up with the method of CFD coupled with chemical reaction dynamic, to make a full-scale...

Air is one of the most widely used insulation medium in power systems. However, up to now there is no any existing gas analysis method used for fault diagnostic based on air by-products detection and analysis. In this paper, a new discharge diagnostic method — gas analysis method based on air by-products...

Air is one of the most widely used insulation medium in power systems. However, up to now there is no any existing quantitative gas analysis method used for fault diagnostic based on air by-products detection and analysis. In this paper, a new discharge diagnostic method — gas analysis method based on...

As a kind of high concentration organic wastewater, coagulation pretreatment for slaughter wastewater should be carried out before biological treatment process.For optimal treatment effect, the choice of coagulant was crucial.In this paper , FeSO4.7H2O , FeCl3 , Al2(SO4)3 , PAC were taken as coagulant...

Ni60 coating provides excellent hardness and wear resistance, it is usually used to strengthen the parts worked the severely conditions with intensified friction. While Ni60 has a strong crack susceptibility due to its high brittleness and high thermal gradient in transient cladding process. In order...

The Cr-Zr-Cu crystallizer surface was strengthened by laser cladding and obtained the gradient alloy coating. The coating was compared with the other three coating produced by other technology such as electroplating, plasma spraying and plasma spraying with re-melting. The experiments were conducted...

One new type piezoeletric microactuator was designed in this paper, in order to improve the output characteristic of microactuator mechanism, piezoeletric analysis was performed and the optimization model was built with wb and as design variables, the maximal output horizontal-plane displacement and...

In this work, a multi-scale copper oxide film with excellent superhydrophobic property on X90 pipeline steel was fabricated by a combination method including electrodeposition, solution-immersion and chemical modification. Moreover, the influence of experimental parameters, such as solution-immersion...

According to the shortages of anti-theft methods for electric bicycles, combined with modern electronic technology, single-chip technology and intelligent sensor technology, propose a design based on the microcontroller used for electric bicycles’ anti-theft. In this paper the hardware and software of...

In this paper, CoCrAlY coating was prepared on the substrate, Ni-based super alloy (GH4169), using Air Plasma Spray (APS). After deposition, the coating was irradiated by High Current Pulse Electron Beam (HCPEB) with different number of pulse beam. Then the micro-structure of coating surface, like the...

Traditional nets made of soft rope support, the four corners fixed to the roof, don't have to put in the roof, the nets continue to cause people to space smaller, living space narrow is easy to make people depressed. It is not about the concept of healthy and happy life. In addition to, mosquitoes into...

The traditional blackboard is to rely on artificial wiped the handwriting effort and produce dust, causing inconvenience to the teacher in class, also affect the quality of students listening lectures. Institutional innovation reform to solve these problems by this design, the basis of the principle...