Advances in Engineering Research

The least squares support vector machines to solve small sample, nonlinear show some advantages, is very suitable for prediction of complex field intensity in mine tunnel , but the choice of kernel function and parameters for predicting the results have greater impact .PSO optimizing LSSVM parameters...

By taking the gear box of a ship lock’s hoisting machine as the research object, because of the vibration signal of a fault gate has the characteristics of both randomness and non-stationary, the chaos oscillator detection theory is introduced into the diagnosis for gear fault. Research the dynamic behavior...

Studying the features of Changchun city as an example, this paper performs a preliminary exploration on Changchun city landscape features into three angles in terms of constituent elements of urban landscape, historical evolution characteristics and urban space features. Meanwhile we also design a framework...

This paper is aiming at solving the problem of front submarine detecting combat of multiple ship-borne anti-submarine helicopters in the process of naval warship formation. By analyzing the launch range of submarine-launched torpedo, torpedo attack launch position models are established under two conditions...

Design and development of virtual experiments has become one of the focuses of the current research, thus the development of virtual experiment using 3ds MAX and VRP-Builder editor technology will also be the development trend of virtual experiment development. And 3ds MAX technology can realize the...

Immunomodulatory peptides play an important role in immune response. Researchers acquired activity peptides from natural food protein by enzymatic hydrolysis and the most commonly used enzymes are Alcalase. In this paper, the mechanism of immunomodulation was summarized briefly. The peptides charge,...

The sports dance is a mixture of dance, music, clothing, manners and physique together with its elegant sports, sports, art, education across three fields, is one item has the aesthetic value and entertainment value of fitness high comprehensive art. Sports dancing is a popular student favorite exercise,...

Simulations and verifications on graphene electronic devices are foundations for application of graphene in integrated circuits. Modeling on graphene metal-oxide-semiconductor field-effect transistor is implemented with artificial neural network. The proposed model has high accuracy and high efficiency....

In the modern times, there exists large-scale electromagnetic interferences and confrontations. If the communication device and the communication technology do not have a very good anti-jamming capability, the communication quality will not be guaranteed. Firstly, this article descripts the rationale...

It is important to master the creep properties of artificial frozen soil in engineering construction during the freezing in the shaft sinking .Given the shortage that the creep behaviors of artificial frozen soil were deemed as the materials between perfect solid and fluid, and that the components of...

Distribution automation is the necessary means and shortcuts to improve distribution network power supply reliability, security and service quality, improve work efficiency, reduce operating costs. Based on the development of distribution automation, this paper develops the fault recovery system of distribution...

The risk of PPP project is one of the issues the most importantly focused by all participants in the project management; the establishment of a scientific risk early warning system is an effective way to control the risk of PPP projects. Based on the design of the PPP project risk early warning index...

This paper introduces a backscatter link frequency (BLF) algorithm featuring high stability for passive UHF RFID tags, which is fully compatible with Information technology -Radio frequency identification- Air interface protocol at 800/900 MHz(GB/T 29768-2013) called National Protocols. Not only are...

This paper analyzes the relationship between building industrialization and labor productivity. Based on Cobb-Douglas production function, the labor productivity model is established to evaluate the effect degree of building industrialization of labor productivity, then a case study of China's construction...

Some factors affect the energy loss in country distribution networks, including the load density, the load distribution, the grid structure and the operating condition of the distribution networks. As a result, the difference and the relation among these loss effect factors are considered, and the typical...

This paper established the application level evaluation index system of agricultural IoT (Internet of Things) in the whole industrial chain of agriculture by means of the application of agricultural IoT in agricultural production, agricultural circulation, agricultural service and agricultural management....

The new ternary compound Co4NiNd had been prepared by melting with stoichiometric elemental constituents, and the crystal structure had been studied by the means of X-ray powder diffraction technique. The results show that the new compound of Co4NiNd is the hexagonal structure, space group p6/mmm(No.191),...

In order to ensure the reliability and safety of the tunnel monitoring, this paper designs and realizes the general intelligent monitoring system for city tunnels, designs the overall structure of the visualization monitoring system, the processing algorithm of the database development module and the...

To examine the tribological properties of TiN films and the cutting performance of TiN coated carbide tools, TiN coatings were deposited by using direct current-pulse bias voltage Arc Ion Deposition technique on AISI 1045 steel and YG6 indexable turning tool. The dry tribological behaviors of TiN coating...

During mining the high stress soft coal seam, usually adopted traditional method should leave large width coal pillar, which cause severe loss of coal resources, at the same time due to the system stiffness of the high stress soft rock roadway surrounding rock is very low, the plastic deformation is...

Based on the observed data, we used the method of analogy years to analysis the effect of middle and small flood control to sediments transport in the TGR. The analogy year is 2007, 2006 and 2008, whose water and sediments condition was similar with the year 2010 to 2012. Compared with the flood season...

China has formulated many policies of low-carbon development and enacted a number of related laws and regulations and using policies and legislations to promote the low-carbon development. China brings forward more policy instruments, including macro-policy, energy policy and renewable energy policy,...

The mechanism model of bridge fire disaster is established by applying the theory of vulnerability. By using Delphi method analysis and screening the vulnerability factors, using cluster analysis and hierarchical analysis establish the evaluation index system of the vulnerability. The vulnerability assessment...

In order to discuss the effects of applying different proportions of potassium sulfate on grape fruit quality, 10 different potassium sulfate proportions were applied. The result was that the treatment 6 had the best effect, and both the intrinsic and the external quality of the fruit were improved,...

A direct method of designing filter dividers is presented in this paper. The method is based on the filter divider's coupling matrix derived from coupling matrix of the associated filter. Through properly placing the output resonators, in phase or out of phase outputs could be obtained. Examples are...

This paper presents a new measure method of stereo matching algorithm, which is based on image structure and pixel’s feature, named CGDSM. The matching cost calculate step consist of three similarity measure factors: pixel gradient similarity measure factor, pixel feature similarity measure factor and...

Carbon Fiber Reinforced Plastic (CFRP) is an important material to make aircraft structure components. However, damage detection is very crucial to aircraft safety and the type of a detected defect is difficult to distinguish. Ultrasonic phased array (UPA) technology provides a possible solution. In...

A kind of integrated machine was designed for community science popularization. It was built rich digital science resources, and information resource was customizable, updated quickly and targeted. So as to meet the individual needs of community residents. The integrated machine used touch screen, and...

The construction phase plays an important role in the project life cycle, consuming a lot of natural resources. The development of green construction is significant to develop sustainably by saving natural resource and protecting the environment, and its evaluation makes it possible to implement the...

Aiming to offer better ubiquitous healthcare (U-healthcare) to the aged and the disabled, this paper introduce a smart wheelchair with embedded sensor system for vital signs which can be controlled by simple gestures. In motion control module, firstly the gesture is distinguished from background using...

A old rolling factory owners plant cover type heat treatment furnace area crane beam, is riveting real abdominal crane beam, has been working more than forty years, and repeatedly subjected to dynamic loading crane, will produce fatigue failure of steel, especially at the rivet connection work Experience...

Fatigue driving, a hot issue in the field of transportation research, has become a worldwide problem which always leads to traffic accident. Existing detection method always based on costly hardware platform sensors. By developing an android APP using image processing algorithm, we can lower the costs...

With the development of networking technology and people's increasing requirements for living standards, people demand more and more for life safety, comfort, convenience and so on. In recent years, the concept of the family home has undergone tremendous change, smart home will become the development...

Cauchy criterion is widely used in mathematical analysis, is the basic theory of mathematical analysis. We prove the Cauchy convergence criterion by using the interval proof theorem and the compactness theorem. In most of the research results, the basic theorem of the real number system is proved in...

Multiple modeling is required by GM(1,1) for multi-stream sequence and there could be abnormal simulation even failed modeling sometimes. This paper analyze grey modeling for multi-stream sequence, especially, grey modeling based on matrix sequence (MGM), and research on its application in Video Shot-Boundary...

When the vehicle is running on the wet road, the contact force between tire and road decreases and the driving controllability of the vehicle becomes worse due to the hydrodynamic force of water. The finite element model of the steel belted radial tire hydroplaning with complex pattern was derived in...

In this paper, the organic phase is penetrated into the ceramic skeleton using a vacuum impregnation process to prepare a biomimetic composite with shell pearl layer structure,which the Al2O3 porous ceramics preparing by freeze-drying method are inorganic phase skeleton, epoxy resin curing system as...

Tunneling field effect transistor(TFET) suffers from low drive current along with severe ambipolar behavior. To resolve these bottleneck issues, a novel double gate tunneling field effect transistor with InAs source(InAsDGTFET) is proposed in this paper. By optimizing the proposed device parameters,...

The emphasis of this paper is to study the high frequency dynamic characteristic of high-power transducer based on giant magnetostrictive material. A prototype of high-power magnetostrictive transducer using in kHz magnitude frequency situation is introduced. The accurate inductance relation in magnetostrictive...

With the improvement of living standards of urban, old residential facilities have been behind the times, the people's desire to enjoy a better life is more intense. Remediation of the old urban residence is the requirement to create a civilized city and ecological city, is the requirement to build a...

Focus on the hygrothermal environment problems of CF3031/CCF300 stiffened composite panel, the stiffened composite panel absorption were studied on in the 85%RH, 70 hygrothermal environment, the moisture equilibrium content of the composites were calculated. The shear test were carried on after hygrothermal...

In view of the problems that extending the traditional grid to supply power may be uneconomical and it is unsuitable for building large-scale wind farm because of the less wind-rich region in Yunnan mountainous areas, a green energy supply scheme of applying small stand-alone wind power generation in...

In order to explore how large bulk carriers can reduce the operational energy efficiency index of ships and improve the operational efficiency of ships, in order to respond to the increasingly stringent emission regulations put forward by IMO and reduce the EEOI value of ships. 7,000 tons of Panamax...

This project considered the preliminary design of a 100MW photovoltaic power station on the Atacama Desert in the North of Chile, which provided flexibility for further project construction.

Based on Optimal Latin Hypercube Design (Opt LHD) method and Particle Swarm Optimization (PSO) algorithm, this article presents a method for tuning PID control parameters of quad-rotor. Firstly, the range of 15 PID parameters are obtained by experience. Within the range of the PID parameters, Opt LHD...

The thesis many studied the complete movement arrangement of the rhythmic gymnastics in our country through the analysis of the movement connection, apparatus throwing and catching, selection of music, completion capacity and the changes in team formations. Rhythmic Gymnastics is a kind of sports programs...

With the rapid development of smart grid, the using of smart appliances, the new information system and the application of digital work gradually get into the smart grid companies. It provides a digital basis for the big data technology to enhance smart grid’s service capabilities, which is the inevitable...

The traditional droop control has the advantages of low cost, easy to expand, easy to proportional load sharing and so on. But the micro-grid line impedance is resistive, which makes the output power coupling each other .The virtual impedance control strategy can help micro-grid converter to realize...

For the order planning problem of parallel production lines in hybrid process manufacturing enterprises, a novel solving method of parallel production lines coordinating scheduling is developed based on bi-level programming theory. To maximize gross profit of unit output as upper level optimization objective,...

The legislative system of Chinese low-carbon development includes the constitutional level, the basic law level and specialized legislative level, as well as local legislative level. In order to respond to low-carbon development, we should make low-carbon development strategies and national cycle development...

As one of the most important features of human face, the eye location plays a fundamental role in many application fields. For example, by judging the eyes state, defining whether the driver is in the state of fatigue. At present, most of the eye detection algorithms in fatigue driving are based on laboratory...

Transferring Image data and Video data will expend a lot of bandwidth.this article raise an AXI DMA high speed communication interface design based on Zynq-7000.Compared with traditional DSP+FPGA architecture,the new Zynq7000 has many superiority.such as low cost,low power,low develop difficulty,software...

Abstract--The dynamic characteristic test of the decoupling disc hydraulic mount designed by ourselves was performed firstly to establish surely the accurate simulation model of the hydraulic engine mount. In order to study the particular dynamic characteristic of the homemade decoupling disc hydraulic...

Due to the long construction time of a steel mill, carried on reinforced many times, multiple replacement and an increase in crane, the pillars of the main building now have a larger vibration. Roof damage Serious. Plant leak serious, in order to guarantee the reliability of building structure, needed...

In this paper, the Rolle theorem, Lagrange theorem and Cauchy theorem and its geometrical meanings of the multivariate functions are given. The n-th order mid-theorem of the multivariate functions is also given.

Due to the influence of the normal angle on the thickness uniformity for the concave combination with two flat patches, considering the paint spread impact on the thickness uniformity, a new spray trajectory optimization scheme for the concave combination with two flat patches is developed. The paint...

black and white Aioi of the Chinese traditional culture thought create environmental design from architecture, interior, landscape and create as a whole, mutual support, mutual implication, mutual penetration, transformation, organic whole art of creating the built environment.

It is difficult to carry out the traditional reliability assessment test of large sample size; when evaluating system’s reliability, due to high value and small samples.Mutual coupling of systen components.The difficulty to judge the impact and failure mode,The uncertainty of degraded performance parameters...

Ultrasonic flaw detection is widely used in engineering blasting, especially the non-destructive testing of rock blasting damage, and it has a good detection effect. By analyzing parameters proposed by ultrasonic flaw detection, the amount of rock damage can be obtained, and Then complete the corresponding...

Second - hand goods trading has become a popular thing in ecollege students' spare time. At present, there are various kinds of information issuing platforms on the market, such as the Net barter, the exchange net, but the content of information issued is less well-directed, the arragement of information...

Based on the questionnaire survey data of 1000 migrant workers in Foshan City, Guangdong Province in 2016, logistic regression analysis was carried out on the basic situation, living conditions and housing security willingness of migrant workers. The study found that the gender of migrant workers, the...

Physics is a branch of science, mainly to explore by experiment. Mechanics is an organic part of physics, mechanics experiment is particularly important. Experiment is a teacher to teach, students learn the important link, is an important part of mechanics.Simulation experiment method in recent years,...

The application of domain specific modeling language (DSML) in the decision behavior modeling of the air-combat simulation brings higher level of abstraction and friendly environment. However, the decision behavior model must be translated to executed code before it be used in air-combat simulation system....

Rural domestic sewage is an important cause of water pollution in Dianchi. Accurately grasping the spatial distribution of sewage is the basic condition for harnessing Dianchi's water pollution. By collecting water samples from various parts of the Dianchi River Basin and conducting laboratory tests,...

Acanthus ilicifolius L is a kind of pantropical mangrove plant. It is cold-natured and bland. The whole plant is officinal. According to recent studies, Acanthus ilicifolius L has a variety of pharmaceutical function, such as hepatoprotective effect, antioxidant, anti-tumor effect and insecticidal effect....

The thesis performed the studies for the construction of physical education basis on below aspects: strengthen the ideological construction through deepening the understanding for education practice; establish excellent instructing teacher teams; comprehensively improve the comprehensive qualities of...

Focus on the problem that fracture characteristic of integral structure is worse than composite structure, this paper studied the influence of anti-crack rib design parameters on the fracture characteristic of integral wing-spar through calculating the stress intensity factor and constructing support...

With the increasing levels of automation, building of heating’s automatic level have a considerable development. So, quality of heating has been greatly improved. However, in actual operation remain exist extensive management. So, heating field need a heating quality evaluation system to evaluate the...

nature of Chinese traditional culture thought and environmental art design from different aspects of the environment influences the architecture, landscape and interior construction, but collectively embodies the basic natural, whole and harmonious layout ideas, also in line with the Taoist the idea...

in the process of the research on the modeling method of big data balanced scheduling, using the current algorithm to establish a big data balanced scheduling model, the data scheduling is easy to fall into local optimal solution, and there is a problem of big modeling error. To this end, a big data...

1.Objective: This study aims to propose the changing of the joint force during walking cycle based on the multi-degree-of-freedom exoskeleton. 2.Methods: The dynamic model of the joint structure is built up and the force situation is gotten when it is working. Then the electric currents are obtained...

In large scenes, the types and quantities of objects are many, and the shapes are different. In the process of using 3ds Max to construct the large scale scene, if the modeling method is inappropriate, it will not only produce the problem of model points, the number of faces and the decrease of the degree...

poplar wood was applied as study object and series of research were carried out in the influence of time and temperature on the performance of heat-treated wood samples. The results showed that the dimensional stability and mechanical properties of heat-treated wood samples were influenced significantly...

Establish the evaluation and calculation model of post-earthquake reconstruction community landscape facility based on weighted TOPSIS method. Determine each weight of evaluation factor with analytic hierarchy process method. Applying the model on post-earthquake reconstructed Yijie district in Dujiangyan...

In order to calculate the millimeter wave proximity fuze echo signal to noise ratio accurately,analyzes the factors that influence the motion of the projectile fuze echo signal to noise ratio of fuze and target distance, fuse and target grazing angle and target to the scattering characteristics and other...

Combined heat and power (CHP) micro-grid combines various distributed generation units, heat supply units, energy storage equipment, electric load, heat load and control devices together to provide users electricity and heat simultaneously. Heat and electricity could be transformed mutually under grid-connected...

The antioxidant capacity of peanut shell polyphenols interacted with pancreatic α-amylase is examined in vitro. The results indicated that peanut shells polyphenols could be used as a kind of potential natural antioxidant for food. The polyphenols easier binding to proteins made its scavenging activities...

The Ant Colony System combined with Variable Neighborhood Search (VNS-ACS) was proposed to relieve the limitations of typical Ant Colony Algorithm (ACA) vulnerable to stagnation and random results. Based on the idea of ACS algorithm, VNS-ACS algorithm improves the path search strategy and the local path...

Most fracture patterns near the well region are more fickle in tight gas field than that in literature. In this paper, a modified discrete fractured well model is presented to account for dynamic characteristics of a vertical well with multiple asymmetrical fractures (MAF). Fracture closure effect is...

With the rapid development of cloud computing data centers, the problems of tremendous power consumption has become increasingly prominent, so it is of great practical significance to study the energy efficiency of cloud computing green data center. This paper proposes a mathematical model based on the...

It becomes increasingly significant of rational design of colored pavement with its gradually applied in roads’ construction. Under this circumstances, this dissertation firstly focuses on what psychological will impact on drivers by color influence, which is based on the driver's visual cognition combine...

It is believed that the ventilation factor plays an important role to define the thickness of the window spill plume. However, the effect of the window height/width ratio on the spill plume thickness couldn’t been concerned in previous research. To obtain more influencing factors of the window spill...

Computer network communication problems often occur, mainly by the computer virus infection, or hacking these two categories of computer intrusion. But the network security problem is not just these two, computer viruses and hacking means constantly changing, so maintain the network security technology...

The automatic positioningmethod of malicious mobile nodes in wireless sensor networks is one of the security content of wireless sensor networks, which has the extremely important research significance. In the traditional wireless sensor networks, the location of the malicious mobile nodes needs to be...

Virtual reality, a new technology in the world, is introduced and discussed according tothe regularity of dust dispersion in the atmosphere, and on the basis of mathematical model, a three dimensional dynamic scene of dust dispersion is developed by adopting OpenGL, inwhich the parameters of flow field...

After a deep investigation on the maximum terms space of the clause set, the concept of the partial maximum terms space of the clause set, which the maximum terms of the clause set decomposed, is brought forward. By investigating the extension rule, this paper introduces the concept of the satisfiability...

In this paper, the solidification structure of hypoeutectic grey iron under different vacuum conditions in lost foam casting (LFC) were discussed. In order to better research solidification structure under different cooling conditions, we designed different thickness step test casting and took actual...

The development of the power grid makes the X/R value in the network become more and more large, which leads to the attenuation of the short-circuit current DC component becoming more and more slow when the fault occurs. In this situation, the ability of the breaker to break the short-circuit current...

This paper is aiming at the submarine detecting fan sector dynamic calculation problem of anti-submarine helicopters using dipping sonar search. Helicopters hovering point coordinate solution model is established based on search method. The equivalent method is adopted to calculate submarine alert area...

Nuclear power is a clean and efficient energy, the development of nuclear power not only to meet energy needs, but also is an effective solution to the problem of the growing air pollution and greenhouse gas emissions. Maximum pollution is thermal pollution which generated by nuclear power operators,...

With the improvement of request in diesel engine dynamic performance, economical efficiency and emission behavior, test technology of diesel engine has gained extensive attention, which has become one of the hot points in the domestic and international relevant research fields. Among the performance...

As a new type of modified fiber, model steel fiber has both the appearance and function of steel fiber and the advantages of synthetic fiber. In order to make up for the mechanical properties of rubber concrete, the basic mechanical properties of C30 model steel fiber content reinforced rubber concrete,...

Background on modern safety monitoring of building maintenance equipment, the technology of ZigBee is applied. Steel wire rope monitoring system of window cleaning machine is researched in this paper. Its key question is to achieve low speed, low cost and low-power consumption. Star topology of wireless...

According to the needs of intelligent and information management of modern airport , planning and implementation of the information platform of intelligent network system of Airport in southwest China. The backbone of this network structure using fiber ring network, wireless access network using TD-LTE...

This study aimed to investigate the construction and management system of eco-clean Nver-Zhai small watershed to solve the existing eco-environment problems. The study area was divided into three protection zones which include ecological restoration of conservation area, ecological control area and wetland...

The pullout experiments of 9 HRB500 bond-anchorage specimens are carried out. The influence of the quantity of bundled bars, anchorage length on the bond-anchorage behavior of HRB500 bundled bars is comparatively analysed. The load slip curve of bundled bar is obtained, and the bond-anchoring mechanism...

This paper focuses on partial demagnetization faults (PDMF) in the 6-phase permanent magnet synchronous generator (PMSG) with rectifier load system. In the study, a multi-loop combined with finite element method (FEM) mathematical model is presented. The multi-loop model utilizes transformation matrix...

A scientific method by combination of PIXE measurement and fuzzy cluster analysis was established to distinguish blue and white porcelains from two different kilns. Twenty two blue and white porcelain samples from Jiajing official kiln and Dehua Housuo kiln are applied for this process . The chemical...

Leaf senescence regulatory mechanism was studied for many years for revealing the physiological and biochemical mechanism. In this experiment, two peony varieties, Juanyehong and Roufurong were studied for uncover the physiological change during dark-induced senescence leaves, including protein content,...

BC graphs are important interconnection networks, which include hypercubes, crossed cubes and other hypercube's variants. In this paper, we propose a new model, named BC-VoD model, to approach VoD system, which utilizes BC graphs. At the same time, we use independent spanning trees for content distribution....