Advances in Engineering Research

Accompanied by China’s New Normal Economy and Chinese social and economic transition. The urbanization has entered a new stage of improving quality and increasing efficiency as the main development, meaning that future urban construction shall not only focus on newly increased lands only, but also focus...

A new high efficiency organic inhibitor (HEOI) was synthesized, which was applied to coal to inhibit the spontaneous combustion. Meanwhile, MgCl2 was used to compare the inhibition properties with HEOI, studied by cone calorimeter. It was found that the combustion parameters of coal samples, including...

At first, this paper has summarized the theory of frequency doubling crystal, summarized suitable for uv frequency doubling of the characteristics of nonlinear optical crystal, put forward the theory basis of frequency doubling crystal KTP crystal, debug out of efficient cavity frequency doubling green...

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...

A practical rainfall generator for meteorological metrology research has been designed. The rainfall generator is adopted to produce a rainfall environment for rainfall instruments test and calibration. The uniformity of the rainfall generator is tested with rainfall collectors and the Christiansen coefficient...

This paper is aimed at improving the LCA method of carbon emissions on construction. Because when using the LCA method for computing carbon emissions of the construction, low-load operating time and quitting time of construction machinery are calculated as normal operating time. So we collected 30 groups...

For the crack noise in molten-image processing of rock deformation experiment, this paper proposes an abnormal value detection method based on connected domain area, through the experiment of comparison with two-dimensional discrete Fourier transform method, this approach can not only completely remove...

In view of the temperature control system has nonlinear, time-varying and hysteresis characteristics, and traditional PID control method adaptability poor, robustness is not strong and other issues, using the combination of fuzzy control and PID method, designing temperature control system based on embedded...

Spiral milling is an efficient milling strategy due to reducing non-cutting tool paths. After investigating the characteristics of roughing, semi-finishing and finishing, a new machining process named extended finishing is proposed. The extended finishing has powerful flexibility to realize various machining...

Since the traditional defects detection methods on the CT image was not highly automated and could not lead to satisfied effects, a new defects detection method of the solid rocket motor was proposed based on the bot-hat transformation and threshold segmentation. Firstly, the bot-hat transformation was...

efoperazone wastewater’s composition is complex,of high COD， biodegradability is relatively poor，while TiO2 photocatalytic oxidation method is of high efficiency，safe，non-toxic and simple to operate，which can be used as a treatment method. The effect of hexadecyltrimethylammonium bromide (CTAB) on the...

Water conservancy facilities play a vital role in rural economic development and social stability, which are the foundation of national food security guarantee. Practice has proved that investing in agricultural infrastructure can not only promote the growth of agricultural output but also narrow the...

With the rapid growth of the economy in China, minor enterprises have become an important part of the China's economy. However, as the world economy competition is becoming more and more intense, the pressure and challenges of the minor enterprises are increasing. Based on the analysis on the status...

Question answer communities such as Stack Overflow and Yahoo! Answers are becoming more and more popular knowledge sharing communities, which have attracted great interest from both industry and academia. On such communities, people can ask questions of any kind and then wait for someone else to answer...

Stochastic interval systems is a new type of stochastic system in recent years, which is a new field integrated by information and control. This paper introduces the research history and the newest research trends of stochastic interval systems, and presents many widespread theoretical and application...

Process fault diagnosis is a topic of significant practical interest. Bayesian fault diagnosis methods have been developed to identify the problem source from all monitors of the process. However in a large scale industrial process, taking all the monitors into account not only increases computation...

Based on the modern impact theory, an anti-shock model of the marine ventilation grid was built to simulate its anti-shock performance in time domain with the consideration of the contact stress. The stress was obtained from the anti-shock simulation which could be useful for the anti-shock design and...

A human body detection system based on internet of things is designed. System is divided into four parts: terminal controller, ZigBee network coordinator, ZigBee network control and display node and ZigBee sensor nodes. The system is mainly used CC2530 chip as information processing and exchange of units...

The solution evaporation in a vacuum is faster than that at the atmospheric pressure, and the required temperature of heat source is relatively low, which can realize the energy conservation. Therefore, it is a subject worthy of investigating. In this experiment, the regeneration process of LiCl solution...

Recently, the competition of the modern enterprises is focus on the competition of the supply chain management and logistics management. Therefore, the supply chain management is becoming more and more important in the world economy, and it has changed the ways of the logistics management. In this paper,...

To make the response of airship system to be quicker, a kind of terminal sliding mode surface was constructed which can make the pitch angle trace the desired value in a finite time. Also a Lyapunov function was given to prove the sliding mode method is right and reasonable. But detailed simulation result...

Anaerobic degradation of the polyethylene glycol 400(PEG400) was studied. The effect of concentration was respectively assessed on the anaerobic bio-degradation of PEG400, using the organic model wastewater containing the 1.0% and 0.5% PEG400. The result showed that: the TOC(Total Organic Carbon) and...

The K-means algorithm has the shortcomings of being sensitive to the initial clustering center, and in order to overcome this drawback, in this paper ,on the basis of the combination of data density and the optimal distance , a new definition of fitting function is made and then a kind of K-means algorithm...

Anthocyanin is an important production of horticulture plant secondary metabolism, which is tightly concerns with fruit quality. There are lots of factors regulate plant anthocyanin biosynthesis including UV, which is one of the most significant factors, however, the effect mechanism details of UV are...

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...

The coatings of titanium dibordie (TiB2) on a high purity graphite substrate by chemical vapor deposition (CVD) was studied by using a gas mixture of TiCl4, BCl3 and H2. The reaction thermodynamics and the influences of TiCl4: BCl3 flow ratio on the growth rate of TiB2 are analyzed by using HSC software,...

Network corpus is extremely convenient language learning and research resources. Some of them free and open to the public, the corpus has very high use value, can make use of the network resources to support classroom English teaching is domestic and foreign linguists and language teachers are concerned...

Droplet jetting technology is widely used in 3D printing. In which process, the flow rate of material extrusion from the nozzle is one of the keys that affect the printing performance, such as the droplet size and its uniformity. In this paper, a model was developed to predict the jetting flow rate....

The current is not specified a current in load side or network side at the detection of APF(active power filter) control. When the detection object is selected a different current, the compensation effect is different. This paper presents a simultaneous current detection control strategies which the...

Recently, the electronic commerce (E-commerce) is an important economic trade way for the logistics management. The modern e-commerce technology has greatly affected on the traditional logistics. And the modern logistics will develop to the trend of informatization, networking and functionalization with...

Aiming at the control accuracy, safety, reliability, low efficiency of traditional manual monitoring infusion system, the introduction of distributed monitoring system is advanced, practical and efficient, implementation of system comprehensive monitoring and management. The PLC application system as...

Ecological Civilization reflects the harmony state between human progress and nature in human civilization, and the ecological civilization of city water is the "concentrated shining point" of ecological civilization, but also the focus and difficulty of ecological civilization construction. This paper...

A kind of integral sliding mode surface method is firstly used in the height loop of airship system based on the assumption that the pitch angle control loop is stable. The expected pitch angle signal is caused by the sliding mode surface which is produced by height error .Compared with traditional PID...

This paper puts forward a vibration signal de-noising method based on LMD and Wavelet De-noise. The method de-noises the PFs separated from LMD by wavelet De-noise, and reconstitute the de-noised signal. It’s effective to de-noising diesel engine vibration signal and simulation signal. Compared with...

As the biggest natural freshwater lake in Jinjiang, Longhu Lake now serves the drinking water source for four towns in South Shanxi Province and Jinmen. The paper evaluates the state of nutrition of Longhu Lake on the basis of analyzing the status quo of Longhu Lake, and proposes seven measures to prevent...

In this paper, the analysis of various higher-order shear deformation theories for the free vibration of laminated composite plates is presented. A Navier-type analytical method was used to solve the governing differential equations. Natural frequencies of simply supported laminated composite plates...

With the rapid development of Internet and computer technology, modern education based on the Internet as main means has become the trend of the development of the education today. Although the domestic English testing system gains more and more attention but most universities and colleges’ equipment...

Shale gas is a kind of unconventional gas,but it is difficult to exploit because of the low permeability and porosity of shale.In recent years,with the larger emission of CO2,how to use CO2 to enhanc shale gas recovery(CO2-ESGR)and sequestrate CO2 effectively is a topic of common concern.Besides the...

With the increasingly high demand for energy saving, the demand for lightweight vehicles emerged. Hot stamping of high strength steel is a very important part of automobile lightweight. How to establish an efficient, reliable, energy saving hot stamping production lines will be an integral part of automotive...

The crack tip fields for anti-plane crack in functionally graded piezoelectric materials (FGPMs) under mechanical and electrical loadings are investigated. The elastic stiffness, piezoelectric parameter and dielectric permittivity of FGPMs are assumed to be exponential function of y perpendicular to...

The design for the normal operation of load in a period of time when the electricity suddenly interrupted. The whole design used "AC-DC-AC" form. The direct current can be obtained by the electricity after the rectifier or the battery voltage after boosting and then sent out after boosting and inverter....

Hybrid electric energy (combined cooling heating-power, CCHP) companies has both customer base and power generation resources, therefore, it can be considered as a power user and as a power generation company ,which can participate in point-to-point direct purchase of electricity transaction. Based on...

The multi-holes orifice plate are simple hydrodynamic devices which can be used for intensification of liquid-liquid heterogeneous micro-mixture for preparing bio-diesel or emulsified diesel. In this study,a flow visualization experiment system with a transparent hydrodynamic cavitation reactor was setup...

In order to illustrate the complexity of system parameter identification, this paper takes a simple one order system as an example, which contains an unknown parameter and an uncertain term. It adopts the adaptive method to design the identification rules of unknown parameters, and uses the robust control...

By analyzing the working principle of the chassis hydraulic system of a certain tracked vehicle, a simulation model of the virtual hydraulic test platform has been built. The model is not only used to simulate the pressure and the flow rate of the hydraulic system in the environment of the virtual test...

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...

The higher order crack tip fields for an interfacial crack between homogeneous material and linear functionally graded materials (FGMs) plates is studied. The governing equations are derived for weak-discontinuous problems of FGMs plates considering transverse shear deformation . The higher order crack...

with the development of more and more application software system model by C/S mode to B/S mode, the advantages of the software system based on WEB is more and more obvious: only use standard browser, of a lot of client configuration. However, late for a WEB application system of maintenance work, the...

In order to visually reflect the pressure distribution characteristics and the flowing tracks of reservoir fluid in five-spot horizontal well pattern, this paper obtain the pressure distribution equation of transient flow in horizontal well pattern by means of the potential superposition principle, present...

Stereo display is the important part in realizing the virtual reality. At present, the problem of visual comfort has restricted the development and application of the stereo display. The visual comfort is closely linked to the depth of the stereo images and the viewing conditions. We propose a method...

The recycled aggregates were modified by sodium silicate, cement grout, cement mixed with superfine fly ash grout and polymer emulsion. The influence of the modified recycled aggregates to the mechanical properties of the concrete was studied. The results indicated that the recycled aggregates can reduce...

In hot-stamping production line of high-strength steel, when high-temperature sheet gets out of furnace, it needs to be delivered as soon as possible to press for stamping, to reduce high temperature oxidation and plasticity reduction caused by temperature drop, and improve the efficiency of the production...

In view of the fact that the parameters can not be fully identified, which is frequently occurred in real adaptive parameter identification, this paper makes a deep analysis and studies the effect of the adaptive control law on the situation that parameter is not fully identified. In order to simplify...

Ship shafting mechanical characteristics reflected the ship shaft system static and dynamic mechanics characteristics, through the ship shafting alignment through theoretical analysis and calculation of ship shafting vibration characteristic includes shafting torsional vibration, transversal and longitudinal...

With the rapid development of mobile Internet, operators are faced with the increasingly fierce competition. Big data includes Internet, medical equipment, video monitoring, mobile devices, smart devices, non-traditional IT equipment such as channel mass structured or unstructured data, and every moment...

The dynamic performance of the empty case is worse than the loaded case to the railway freight vehicle in general. The gap damping idea is referred to be used to improve the ride index of the three piece mid-cross bogie vehicle when the friction damper force is downed in this paper. It covers stable...

This Particulate nuclide deposit onto the sea surface will bring radioactive hazards to marine ecological environment, so it is necessary to study the dry deposition velocity of it onto sea surface. In this paper, a model of dry deposition of particulate nuclide onto sea surface is established, and the...

China has about 400 million hectares grassland, accounting for 41.7% of the land area, from the 2013 China Prairie Conference published data, the Chinese grassland CO2 absorption capacity of 21.7 billion tons, How to effectively integrate the huge grassland carbon sinks has become a problem. Through...

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...

A CMOS wideband low noise amplifier (LNA) based on distributed LC network is presented in this paper. Employing the distributed LC network, the bandwidth of the low noise amplifier is greatly increased without sacrificing the gain of the amplifier. The amplifier is designed in 65nm CMOS process. Simulated...

This article from the small medical products research status quo of humanized design for the starting point of design, We analysis the relevant factors of humanized design, including the user characteristic model, user behavior model, interface model and environmental characteristic model and than analyze...

The finite element model of pipe/shell structure is established using Design/Modeler of ANSYS/Workbench. The modal analysis of the pipe/shell structure is done at 28MPa of stable pressure by ANSYS/Workbench, the first six order frequency and vibration model are obtained. The third natural frequency is...

In this paper, we conduct research on the design and implementation of computer network virtual laboratory based on ASP.NET. Virtual laboratory is a kind of special, distributed problem solving environment which is to provide the users a web-based experiment teaching, technical exchanges, joint research...

Energy saving, emission reduction and boost energy utilization efficiency have long been the research hotspots of automobile industry[1]. In the thesis the principle of semiconductor thermoelectric power generation is briefly expounded to raise one solution of using thermoelectric power generation material...

In this paper, the electromagnetic model of Permanent magnet synchronous motor (PMSM) is established by using the RMxprt module self-brought by Maxwell, and the two-dimensional model is generated to conduct the electromagnetic simulation analysis. By using Simplorer as the simulation platform for driving...

The performance of particle swarm optimization (PSO) is limited by its local minima, defects and poor precision. To solve this problem, we present a hybrid adaptive particle swarm optimizationª. Two approaches, symmetric distribution and simulated annealing algorithm, have been used to improve the PSO...

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...

With sensor technology matures, wireless sensor networks in the field more and more attention and has been widely applied. As the wireless sensor network system behavior is heterogeneous, traditional wireless sensor network system design modeling focuses on single subsystem model behavior from the wireless...

To study the shearing performance of asphalt mixture with Lucobit, AC-13C and SUP-20 asphalt mixture with Lucobit were carried out the uniaxial penetration test and the the direct shear test. The results show that the angle of internal friction of the same gradation and temperature has little difference,...

According to the mineralogy of the polymetallic ore the process of preferential flotation of copper was adopted, and the separation of lead, zinc and sulfur were carried out and implemented Four products, including copper concentrate assaying 22.67% Cu at a recovery of 91.77%, lead concentrate assaying...

Column - crossbar rail is the heart of the Moving beams CNC gantry machine which is now widely used in Machinery manufacturing. Whether the structure is rational directly affects the dynamic performance of the whole machine and machining accuracy. The traditional slide, linear rolling and hydrostatic...

With increasing age, the elderly, the special requirements of living space and a corresponding increase in the degree of dependence. This article focus from the functional space housing the elderly begin to analyze the elderly housing designs should be noted that the problem of elderly residential points...

This paper announces an algorithm to localize service robot in the spherical coordinates and presents a method to implement ultrasonic localization of IGPS (inversion GPS) in the spherical coordinates. In addition, the algorithm is justified after a simulation.

This paper analyzed the content, distribution, seasonal and vertical variations of Pb in Jiaozhou Bay based on investigation data in surface and bottom waters in different seasons in 1982 and 1983. Results showed the seasonal variations of Pb contents in surface and bottom waters were consist in generally....

The increase of the feed speed leads to severe thermal deformation, which seriously affects the positioning accuracy. Therefore, we take the X-ray feed system for machining center as the research object. Then, by analyzing the main heat source and establish a finite element model, the steady-state temperature...

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...

Automotive product injury risk evaluation is an effective means to reducing the loss caused by automotive product injuries by controlling the risks of such injuries. Based on the product injury monitoring data from the national product injury information monitoring system, and focusing on potential injury...

With the rapid development of network communication technology and Internet technology, international trade enterprises will face the business operation mode change by using the advanced information technology to strengthen the traditional advantages itself. The application of international trade information...

In the flotation of copper - lead - zinc polymetallic sulfide ores, flotation separations of those valuable minerals have been a difficult problem due to their finely-associated intergrowth and similar flotability of these sulfide minerals. This paper summarizes the research status and progress of mineral...

This paper studies the application of data warehouse in the modern financial industry, can help Banks to products, departments, institutions of profit and cost analysis, by strengthening cost management to increase efficiency, will largely change bank management departments at all levels of management,...

Nowadays the air pollution is increasingly serious. PM10, PM2.5 and other major pollution comes from various sources, in which one of the important sources is the emission of cooking smoke. Therefore, the control of sources is quite important to emission reduction. With the development of cities, more...

This paper analyzed the seasonal variations and land-ocean transfer process of Pb in Jiaozhou Bay based on investigation data in surface waters in different seasons during 1979-1983. Results showed that during 1979-1983, both stream flow and marine current were the major Pb sources in Jiaozhou Bay. However,...

Dilatometry is one of the most popular methods for the study of high temperature physical properties of steel and thermal expansion is considered to be an important factor concerning on the crack formation during casting and rolling for pipeline steel. In the present study, dilatometric curve of X60...

In the high speed feed system, the temperature rise of the bearing will affect the positioning accuracy, so we design the liquid cooling system to cool the bearing. The cooling system consists of the mechanical module and the liquid-cycle-cooling module. The mechanical module is a spiral groove on the...

It is very important to determine the specifications of components of vehicles at the initial design stage. Currently, the researches on torsional stiffness and weight optimization, structural improvement, and vibration and noise have been carried out. However, the structural local optimization of a...

The main objective is to achieve networking integration with a wide range of interconnected information space and depth of the physical world, and wireless sensor networks as a peripheral network of things, it is possible on a larger spatial and temporal scale networking provides active physical perception...

With EP(epoxy resin) as matrix resin, DCA(dicyandiamide) as curing agent and modified imidazole as curing accelerator, and adding fillers and other additives, a single–component flow–type EP underfill adhesive was prepared. The curing temperature was determined by testing gelation time and characterizing...

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...

In this study, 17 kinds of vegetables were selected to make a contrast test ina nutrient solution cultured under the condition of 50 mg/L Ce pollution. Lactuca Sativa L., a low enrichment and normal growth, was selected by soil experiment to analyze the accumulation of Ce and its physiological and biochemical...

This paper analyzed the content, distribution, source and background level of PHC in Jiaozhou Bay based on investigation data in April, July and October 1986. Results showed that the PHC contents in surface waters ranged from 0.005-0.122 mg L-1, and were meeting Grade I/II (0.05 mg L-1) and Grade III...

With the rapid development of Internet technology and applications, network integration into all aspects of people's lives, the computer network has become a powerful force for social and economic development, the use of network information technology to achieve national economic and social information...

In recent years, the construction engineering industry has developed rapidly, and the engineering quality problems have become increasingly prominent, such as the low concrete strength and the cold joints of concrete structures. Based on an engineering example, this paper describes the whole process...

The cable wind-induced vibration of long span cable-stayed bridge is one of the key factors causing serious damage to the bridge. The ribs setting on the surface of the stay cable are one of the aerodynamic damping measures to restrain its wind-induced vibration. As the surface morphology of the stay...

The current trend of flexible pavement design is moving from an empirical approach to a mechanistic based design methodology. The equations used in the empirical design method to determine the pavement structure rely on the empirical relationships between design variables. These equations are only valid...

Wireless sensor network is widely used in military, industrial, medical, transportation and other fields. As a product of the era in the future, wireless sensor network will play a more and more important role. This network is usually composed of sensor nodes that of low power consumption and low cost....

In this paper, we consider the problem of constant propagation. If some variable can only take a constant value in a given program, then we can replace all the occurrences of that variable with the constant value. That does not affect the semantics of the program, the program can be accelerated at run...

In recent years, the development of new materials is rapid, and the quality of materials brought by it is also obvious. Based on an engineering example, this paper expounds the process of detection, identification and cause analysis of a brick masonry structure, and provides reference for similar project...

View maintenance is a hot topic in database. But unlike database view, the knowledge view of knowledge management system has its particularity. The knowledge view is a cache of knowledge item that can be access quickly. Based on rough set, this paper proposes an approach of constructing knowledge view....

Autonomous navigation is one of the key issues in the field of mobile robot. In recent years, as the robot system operation ability and the development of related technologies, such as image processing, people more and more research is not dependent on the autonomous navigation technology of GPS system,...

The article focuses on the self-drying curing characteristics of energy-saving and environmental friendly water-based self-drying / fast-drying foundry coating. Through check experiment, the differences of strength, humidity resistance and influence on the strength of resin sand when respectively using...