The flower of Musa nana Lour., also named 'XiangJiaohua' in Chinese, is a commonly used herbal drug in traditional Chinese medicine (TCM). Musa nana Lour. flower and bract were usually discarded after banana fruit ripening, which leaded to resource waste and environmental pollution. It can not only protect...

Lynx Design System is a big breakthrough among all the digital integrated circuit backend design tools. For the purpose of reducing the iterative repetition and lack of design flow, based on the traditional digital integrated circuit backend design tool, This paper demonstrate the circuit synthesis ,...

With the development of Internet, the two-dimensional code technology has been widely used. It is a technology which includes information coding, information transmission, images processing and data encryption. And it develops from one-dimension bar code. It can realize rapid positioning and automatic...

The corrosion resistance of copper indium-molybdenum alloy layer was briefly introduced, In the acidic solution (0.5mol/L sulfuric acid solution), alkaline solution (0.5mol/L sodium hydroxide solution) and neutral solution (3.5% sodium chloride solution) in the stainless steel substrate and infiltration...

The volatile components of Meitan Cuiya tea in Guizhou were determined, which provides theoretical basis to improve and enhance the aroma quality of Meitan Cuiya tea. Headspace solid-phase microextraction method (HS-SPME) combined with gas chromatography-mass spectrometry (GC-MS) was used for the analysis...

For acquiring the precise parameters of bearing in rotating machinery, and further to study the bearing characteristics, and considering the difficult and bottleneck problems with wired monitoring method for bearing, the on-line monitoring method of bearing based on wireless sensor networks (WSNs) is...

The characters of flexible clamp stretch forming (FCSF) is introduced, the finite element model of FCSF is set up, and lots of numerical simulations for spherical part and saddle-shaped part are carried out. Contradistinctive analysis of strain, thickness and transitional length between RCSF and FCSF...

The cementation has been the most widely used technology for immobilization of low-level nuclear wastes up to date. The increase of the amount of waste containing in a standard cementation unit is very important since it could reduce the waste disposal cost significantly, which requires an optimization...

The main problem of low-level radioactive wastes utilization in present technologies is lower waste containing capability and high leaching rates from the solidified body of compound. Also traditional OPC based grouts have low strength gain, especially at initial stages of hardening, caused mostly by...

In other to enhance the assessment ability to modernized weapons, an adaptive weight adjustment algorithm based optimization of weighted-distance similarity is proposed. Adopting Analytic Hierarchy Process and entropy weight method to evaluate the subjective and objective weights of indices, building...

Ferro-coke is an iron-containing novel kind of coke, to clarify its behavior of CO2 gasification under Zn recirculating condition in the blast furnace is very important for its practical application in BF production. In this paper, the weight loss of ferro-coke was determined with a thermogravimetric...

Plasma, a quasi-neutral gas, is referred to as the forth state of matter. Plasma surface treatment consists of plasma surface modification, plasma polymerization and plasma surface grafting. Dielectric barrier discharge (DBD) is an effective way of producing homogeneous plasma. DBD consists of infinite...

Based on the uniaxial tensile mesoscopic spring model of concrete, a uniaxial compression microscopic spring model is introduced. Considering the effect of material composition and horizontal deformation of concrete, a stochastic constitutive damage model of concrete is built. The effect of stiffness...

In order to improve the pitch machining accuracy of gear artefacts, based on the extraction method of the systematic indexing error (SIE), the phase-transfer gear-grinding technique (PGT) was proposed by taking the SIE curve interfere with its phase-transfer error curve. First, the SIE curve of the gear...

The thermodynamics of the reactions for carbon reducing of coal fly ash to Si-Al alloy were investigated with HSC Chemistry 6.0 thermodynamic analysis software.The standard molar enthalpy change, Gibbs free energy and equilibrium constant of the reaction system at different temperatures were calculated....

Quantitative detection of the status of the injured site of the patient contributes to the assessment of the rehabilitation effect. This paper designs a wearable device based on embedded system, which can get the pressure, temperature and attitude information of the finger parts and send these messages...

Aiming at the problem of machining quality caused by the sharp fluctuation of grinding force during the grinding process of non - circular parts, a new method for determining the transition profile based on the presetting of the grinding arc length is proposed. It is recommend to use the target profile...

The road performance prediction models of AC-25 asphalt mixture are established through a large number of road performance test,the road performance of AC-25 asphalt mixture is predicted in the design calculation process.The gradation test prediction models are established to identify the skeleton structure...

Nanostructured 8YSZ(6~8 wt.% Y2O3 partially stabilized zirconia) thermal barrier coatings(TBCs) have been proved which can improve the thermal conductivity and durability compare to conventional coatings. There are still concerns in the engineer and scientific community about the stability of nanostructured...

Based on stochastic damage model, a new damage variate with two parameters is proposed to describe the damage constitutive relationship of concrete. The damage evolution laws of high-strength and high-performance concrete are obtained by a large number of experiments on it's mechanical properties. The...

Coal gangue as admixture cement gelled material preparation, the preparation process of coal gangue calcined temperature of 600, using common P • O32.5R ordinary Portland cement, add 15% of fly ash and 1% of poly (carboxylic acid water reducing agent, chemical excitation agent with a purity of 99.9%...

In order to improve the production efficiency of peanuts in China and increase the yield,a kind of adjustable air suction seeder with plug board is designed for peanut seeding .The seeder is designed for efficient seeding of large seeds such as peanuts.This structure can quickly finish the replacement...

The method of micro hole forming indented by a conical diamond into a metal sheet based on glass substrate is an innovation. In order to solve the cracks problem of the hole edge during the indention experiment at present, the changing simulation of grain size and effective stress of the copper sheet...

This study first analyzed the phase composition of Dahebian coal mine by XRD, then do the experiment of screening, float and sink test, following the Hg content of coal was determined by atomic fluorescence spectrophotometer, and the regularities of distribution of Hg was studied. The results showed...

The basic principle of inter-isolated structure is expounded, the application of the inter-isolated structure is analyzes home and abroad, research ideas and progress in recent years of are summarized in detail, and the earthquake disasters research focus of the structure is put forward. The study shows...

The light steel-wood- plastic structure of the Dai national folk houses combines the development history of Dai buildings and national culture, which is a new structure suddenly rised. This structure not only meets the local living requirements, but also is one green building.Besides, the structure is...

In the turning process, the slender shaft workpiece is one of the difficult parts. Especially the action of load on the surface of rotary workpiece and interaction between the workpiece vibration and cutting force increase the vibration of the workpiece and even cause flutter. Based on the theory of...

This study presents a damage detection system using modulated ultrasonic and fiber Bragg grating (FBG) in Aluminum thin plate. In the system, modulated ultrasonic technology and FBG sensing technology were combined to detect damage. Piezoelectric patches used to excite ultrasonic and FBG were pasted...

3-triethoxysilylpropylamine (KH550) polymer was coated on quartz fibers by a simple dipping process without any complex chemical treatments in order to increase the bonding strength between quartz fibers and boron doped silicone resin matrix. The effect of coating on the interface of quartz fiber reinforced...

Two types of steels containing rare earths (RE) were smelted by the vacuum induction furnace with magnesia crucible, RE metals were added in liquid steel at the end of the smelting process, chemical compositions of the test steels were analyzed, and inclusions were observed by scanning electron microscope...

Heating furnace is the key and core equipment in the petrochemical production plant, therefore using risk assessment method to effectively identify and control the possible risk is very important. In this paper, how to consider the heating furnace danger and operational problems in the HAZOP analysis...

The self-excited oscillation pulsed water jet is an efficient and valuable technology for cutting, especially for risky environments. In this paper, the pulsed water jet is explored to be used in high-risk environment for metal cutting. The abrasives are proposed to be added in to enhance its cutting...

Microstructure and facture morphology of the W6Mo5Cr4V2 steel were investigated by optical microscope (OM), scanning electron microscope(SEM) and Rockwell hardness tester , in order to figure out the reasons of brittle fracture and crack. They show that the carbides inhomogeneity is very serious and...

Dynamic characteristic of machine tool is an important factor which affects machining quality and machining efficiency. Traditional experimental modal analysis method requires the measured structure to be in a relatively static state. So the dynamic characteristics of machine tool structure cannot be...

The overall design of the mechanical structure of the color 3D printer is put forward, and a new spliced print head structure is proposed. The utility model relates to a splicing type print head, which is composed of a print head which is loaded with different colors of silk material and a movable fixing...

In order to realize the precision seeding of big seeds such as peanut, in this paper we designed a seeding machine which is characterized in that it is provided with an adjustable intake pipe,The upper end of which is connected with the original air inlet pipe of the seeding machine, the lower end is...

SIP protocol has the advantages of simple structure, easy to expand, and so on. It has a good development prospects in network integration and business integration. Now many large business providers have begun to deploy and operate SIP based fixed network VoIP business, SIP will increasingly become the...

A planar waveguide with Eu(III)-singlewalled carbon nanotubes (SWCNTs) was prepared by spinning coating. Its properties have been investigated by fluorescence spectrum, near-field scanning optical microscopy (NSOM) and m-line method. The film thickness is 1.825 m and refractive index is 1.593. The result...

Effects of Y on microstructure of Mg-8Zn-4Al alloy was investigated by optical microscope (OM),X-ray diffractometry (XRD).The corrosion resistance behavior of Mg-8Zn-4Al- xY alloy immersed in 3.5% NaCl solution was tested by static weight loss and potentiodynamic polarization. The results showed that...

The phase and composition of Liupanshui gangue are tested by XRD and XRF respectively. The activation properties of coal gangue as cement admixture at different calcination temperatures are investigated. The results show that: Liupanshui coal gangue as a binder to join the cement cementing material,...

According to the theory of multiple-beam interference, the difference of sodium wavelength can be measured by using fabry-perot interferometer. After experiment, unary linear regression and uncertainly calculation has been down based on the raw data. At last we do qualitative and quantitative error analysis...

According to Extension project construction drawing design of Chang pugang Bridge and some related files, we built the mathematical model for calculation. Also, the internal force, stress, and deformation result of the control section has been checked by referring to the current specification, and we...

In view of the eddy current retarder (ECB) power consumption problem, a new type of split self-excited eddy current retarder (S-ECR) is designed in this paper. In order to verify its feasibility and get the best structural parameters, the influence of the structural parameters on the braking torque of...

Natural rubber(NR)/Epoxidized Natural Rubber(ENR)/Carbon black(CB), NR/ENR/silica(SiO2), NR/ENR/ montmorillonoid(MMT) and NR/ENR/carbon nanotube(CNT) were prepared in an open two-roll laboratory mixing mill at 5060 °C. Curing property and static mechanical property of NR/ENR composites with different...

At present, the safety evaluation of long-span bridges in construction is a hot research topic in the world. Considering the main factors (cantilever erection, wind load and temperature change), which influence the change of bridge member stress during the construction phase, the reliability of construction...

The phase composition of raw coal in Liupanshui Miluo area was analyzed by XRD, and the Hg content of raw coal was measured by atomic fluorescence spectrometer, and discussed the occurrence of Hg in the coal. The results showed that the Hg content in the coal increased with the sulfur, density, size...

The aim of this paper is to analyze influence of inertia moment on dynamic characteristics of mixing system. First, the basic structure of mixing system is introduced, and the working principle of mixing system is illustrated. Second, the simulation model of mixing system is established based on AMESim...

The effect of yarn twist on the quality of rotor spun viscose yarn was assessed by analyzing the quality of 30-branch viscose yarn with different yarn twist. The results show that yarn twist has little effect on the quality of the viscose yarn, but excessive low twist will increase the breakage rate.

In conventional peroxide bleaching of chemi-thermomechanical pulp (CTMP), the bleaching efficiency of hydrogen peroxide (H2O2) is far lower than its expected level. In this paper, a novel bleaching method is proposed to improve the H2O2 bleaching efficiency of poplar CTMP. This novel method, namely Continuous...

According to the image characteristics in weld seam tracking with laser vision, Radon transform is first used to find the location of the laser stripe; then, the transformed image is processed by using the way that the pixel information caused by laser stripe is reserved and the other information by...

Turning tool angle is a critical and difficult point during teaching. To help students understand the geometric angle of turning tool, the author designs a detachable marking angle model for the turning tool. The model can be used to assist teaching, which is helpful for visualization. Therefore, the...

The aim of this preliminary research is to study the precision of pile foundation position compared to its original designed location. Before the installation of steel pipe piles for this project, the subcontractor found that the present vessel and equipment could not fully satisfy the plan twist angle...

Chinese alpine regions experience strong sunshine, large temperature differences, prolonged low temperature and other conditions. Tailings melting caused by tailings spring flood season, in winter and spring alternately, can easily result in dam collapse. According to the characteristics of climate and...

In this paper, the control of all the movements of the corn harvester cutting table is based on hydraulic, PLC is used as the controller of the whole machine, The hydraulic component is used to control the folding of the cutting table, the adjustable row spacing and the rotation of the twisting and stripping...

Based on the oil and gas suspension of the harvester chassis, in the CAD simulation of the cylinder movement to the maximum limit position, the frame deflection, and ultimately determine the limit position, the hydraulic cylinder and thrust lever offset angle to see whether the hydraulic cylinder and...

Nowadays, the corn harvester has a variety of forms, including horizontal, vertical, and combinational pick roller, etc. New maize Corn harvester with 9-line designed in this paper, the header using the horizontal pick roller. In this paper, cutting machine is designed for spacing can be adjusted, cut...

In this paper, aluminum alloy and titanium as the research object, the resistance spot welding and post-weld heat treatment were conducted to study the Al/Ti interface reaction layer formation and growth characteristics. Besides, the effect of heat treatment temperature on the growth of Al/Ti bonded...

Al-Ti diffusion couples prepared by resistance spot welding are annealed at 575°C for different time. The microstructure of the interface area was investigated. The result shows that there is no obvious intermetallic compound in the interface after welding. According to the SEM (scanning electron microscope)...

In this experiment, the intermetallic compound of pure aluminum / Q235 low carbon steel was studied by explosive welding. The thickness of IMC in aluminum / steel interface under different heat treatment temperature and heat treatment time was studied. It is found that the thickness of the intermetallic...

The thermodynamic data of atmospheric pressure were calculated by using HSC chemistry 6.0 software, and the thermodynamic conditions were discussed theoretically.It indicated that the simultaneous reduction of alumina and silicon oxide by carbon at high temperature was beneficial to reduce SiC and Al4C3...

CFD simulation method and PIV technique provide efficient methods to reveal the highly complicated internal flow situation of fluid couplings. Although there are quite a number of papers adopting these two methods to analyze the internal flow situation of fluid coupling, most of which only consider single-phase...

Dipping process combined with sol-gel method was successfully use to prepare Al/Al2O3 films on the Fe-Al alloys. Oxidation thermodynamics, XRD and SEM results showed the same conclusion that, the Al component dipped on the surface of Al2O3 film obtained by sol-gel method could obviously improve the the...

Due to the influence of repeatedly vehicles load and the environmental periodic variation, cement concrete pavement is damaged regularly and the normal usage of road is influenced seriously. The concrete mix proportion of a new kind repair material of cement concrete – slag base is designed in this paper,...

The ever fierce competition in the financial market has highlighted the importance of maintaining good customer relationship for banks. The Customer Relationship Management (CRM) is built on a layered system and the traditional BP neural network has low speed and accuracy. The paper is an attempt to...

The opener is the important part of planter, which can affect the accuracy of planting, seed emergence rate and situation of seed after fell in the seedbed. This paper summaries the type of openers at home and abroad, and the characteristics of each kind of opener and suitable places are analyzed. Because...

In the construction industry, according to the study on the skin effect of some scholars, showing the skin effect of the wooden structure not only has important significance in strengthening the structural strength and reduces the use of building materials, but also the use of skin effect in a small...

Picosecond laser was employed to drill through holes on alloy of GH2132 by helical technique.The effects of repetition rate and processing time on the qualities of through holes were investigated.Morphology of holes of irradiated areas were analyzed by scanning electron microscope(SEM).The results indicated...

A novel naphthalene molecularly imprinted material was prepared using a template immobilized on Silica gel matrix by surface imprinting technique using naphthol as template, 3-isocyana to propyltriehthoxysilane as monomer, ethyl silicate as crosslinking agent. FTIR spectrum was adopted for the characterization...

The electrochemical reaction mechanism and electro crystallization process of hafnium in the NaCl-KCl-NaF-HfO2 molten salt were examined at 973K by means of cyclic voltammetry, chronopotentiometry, and chronoamperometry techniques. The results show that the electrochemical reduction mechanism of hafnium...

As a refractory metal, zirconium has a wide range of applications in many fields. The method of electrode position to produce metal zirconium is more available, it is important to study the behavior of zirconium in the molten salt. The electrochemical reaction mechanism and electrocrystallization process...

A new mowing robot suitable for large-scale lawn is proposed in the paper. The mowing robot mainly consists of mobile platform, GPS navigation system, control system, power system and remote monitoring system. First of all, the paper introduces the functions of each subsystem from the point of view of...

The dispersion behavior of graphene oxide and graphene oxide quantum dots in different organic solvents has been investigated. When these dispersed solvents were placed for one year, as-prepared graphene oxide were seen to exhibit long-term stability in three solvents (ethylene glycol, N,N-dimethylformamide...

This paper proposes a method of mechanical performance prediction of cold rolled ribbed steel bars based on BP neural network with whole variable space. It builds a whole variable space model and studies the mechanical performance prediction of cold rolled ribbed steel bars based on the 5-in & 1-out...

The relationship between wave length, diameter and number of layers and the loss factor of multi-layer bellows was analyzed by using the iterative method of modal strain energy, according to the numerical analysis results of the finite element ANSYS software, the influence curves of different parameters...

Pneumatic balance crane in the process of porter parts can be efficient and precise, cylinder plays a vital role.For a reasonable selection of the required cylinders,by analyzing the motion characteristics of the four-bar linkage and the force analysis of the rod in the pneumatic balance crane, the magnification...

Direct yaw-moment control (DYC) has obvious advantages in centralized-drive vehicles, but in 4WID-EV networked control system, the network-induced delays would reduce control performance of DYC and even deteriorate the 4WID-EV networked control system. To ensure robustness of DYC and reduce the adverse...

A new asymmetrical photochromic diarylethene, 1-(2-methyl-3-benzofuryl)-2-(2-methyl-5-naphthyl-3-thienyl)perfluorocyclopentene (1o) was synthesized, and its photochromism and fluorescence properties were studied in detail. Upon irradiation with 297 nm UV light, the colorless 1o changed to violet both...

Biodegradable materials have been actively studied in applications of food packaging, agricultural film, and biomedical materials. As one of the most important biodegradable materials, polylactide (PLA) has attracted great attention due to its excellent biodegradable property. Despite favorable performance,...

The paper discussed the problems in trial-production line for the HIGGS watch, which made against the success of putting the new product into mass production smoothly and introducing it to the consumer market on schedule. After analyzing the causes of the problems, a series of solutions such as communication...

Through-feed super-finishing is the main processing technology to roller convexity. The research on lapping force of tapered rollers in through-feed super-finishing is the key to further study the material removal mechanism of the roller. Taking a single grain as the object, the movement characteristics...

Based on the contact geometry characteristics of tapered roller and oilstone in the super-finishing process and the relative motion relation principle, the mathematical model of single abrasive trajectory on the outer surface of the oilstone was established. The model and their parameters estimation...

In order to obtain a rail steel with high strength, high toughness and good resistance against contact fatigue failure, vanadium and niobium were added into the bainite steel, and roles of V and Ni were discussed. With the addition of V and Ni, the bainite steel is obtained grain refining, high strength...

In order to investigate the influence of two kinds of hybrid structure (sandwich and interlaminated) on the properties of glass carbon hybrid fiber materials. We did the experiment with the pure glass fiber material as contrast object. In the case of the same relative volume of carbon fiber, the experimental...

In order to reduce the apple damage of extrusion and collision caused by machine during apple picking, study law of apple damage is necessary. A compressive test is carried out on precision micro controlled electronic universal testing machine, red apple of Fuji type at mature state as the test material....