Advances in Engineering Research

An indoor positioning scheme for a moving vehicle equipped with UHF radio-frequency identification (RFID) system is proposed by using Monte Carlo-based algorithm. By evaluating and updating the random sampling positions marked by passive RFID tags on ground, Monte Carlo algorithm can be implemented successfully...

Research on Ontology has been widely applied in the various walks of life, but in the machinery industry it’s comparatively rare. Therefore, it is very necessary to carry on the overview of the application of ontology in mechanical industry. Firstly, this paper introduces the basic concept of ontology...

This paper presents a method for analyzing the tooth contact situations of a heavy-load planetary gearing based on Ansys Workbench. Firstly, a 3D finite element model of the whole gearing is established with 10 node tetrahedron elements. Then forces and loads bearing by the gearing are applied on the...

A sample-and- hold circuit for a resolution pipelined ADC is presented. The circuit uses a fully differential capacitor flip structure to reduce power consumption. Increase the gain by using an olded-cascode amplifier. Based on 0.35μm CMOS process, the Hspice simulation shows that the circuit can work...

TiO2 tablets prepared by pressing mechanism and by planetary ball mill doped Fe, and they have been investigated by XRD, and SEM techniques. The results show that the pure TiO2 tablets has the high photocatalytic degradation rate of Rhodamine B at 500 C, and Fe/ TiO2 0.25 mol.% higher than pure TiO2...

In view of the main fault type in boiler steam water system, a variety of complex fault data are extracted. A wavelet neural network fault diagnosis based on particle swarm optimization algorithm is designed. The wavelet neural network constructed by three-layer wavelet neural network, is trained by...

English writing is the main tool for testing vocational colleges students' English ability to learn and use English, which is also an important reference index to test students' English practical application ability. In order to enhance the level of higher vocational college students' English writing...

Nowadays, with the rapid development of Internet, news is growing explosively. In order to improve the practical value of scientific news, an algorithm of text categorization which is used to classify scientific news is designed. The number of scientific news is 16034, which is gotten from web pages....

The paper proposed an algorithm about volume-calculation and weight estimation of coal stack based on image-processing. In this application system, the laser was assembled on the stacker, so that the scanning data can be collected from the laser with the movement parameter of the machine. 3D point cloud...

Flange joints are common in electric transmission steel tube tower. Flange with stiffening rib usually used, whose structure is complicated and do not meet the economic requirements, but flexible flanges make up the shortcoming in a certain state. So strength of flexible flanges subjected to axial force...

Node localization is an important supporting technique in wireless sensor networks (WSNs). The traditional maximum likelihood estimation localization method (MLE) assumes that measurement errors are independent of the distance between anchor node and target node. However, the assumption may contradict...

Currently,decision scheme often ignores the correlations among the indexes,which will not only make calculation more complicated , but also affect the accuracy of decision-making, even cause huge economic losses. It is unreasonable that it assumed independent irrelevance in information fusion of the...

Perovskite-type oxide SrFe0.5Co0.5O3- was synthesized by citric acid method successfully. The structures of the catalyst were characterized by X-ray powder diffraction (XRD), scanning electron microscope (SEM).Using SrCo0.5Fe0.5O3- as photocatalyst, the photocatalytic properties of degrading gentian...

For its special characteristics of water quality, the biological treatment technology for waste leachate and other special sewage is not yet mature. The study took advantage of the characteristics of the UASB reactor and improved the type of three-phase separator, in order to degrade organic pollutants...

Four composite coatings of aluminum, zinc, aluminum zinc and high aluminum bronze were prepared by low-pressure cold spraying technology on 45 steel substrate. Study on microstructure and corrosion resistance of coating by scanning electron microscopy, electrochemical workstation and static immersion....

In this paper, there are two objectives in the optimisation of thin-walled structure, one of these is to reduce the total mass of the structure, and the other is to ensure the carrying capacity of the structure. The secondary objective, i.e. carrying capacity, is transformed into the optimisation constraints...

Crop straw is an abundant but still underutilized renewable resource. Most of agricultural crop wastes contain about 70% fermentable components. Pretreatment technology aims to expose the fermentable carbohydrates for hydrolytic enzymes and microbes in downstream biofuels production process. An ideal...

With the popularization of computer, computer-aided examination by has becoming the hot topic of studies. In English teaching and testing, using the computer aided test system to test the English ability of students has been a trend. In this paper, computer aided English exam system both at home and...

On the condition of bit stream, for the reason of simple character sets of target strings and Pattern strings, the probability of appearance of absolutely bad character is very low. The bad character shift is not suited for pattern matching, because of it’s low efficiency. This paper gives the definition...

Currently, due to the shortage of land resources, the resource development technology increasingly competitive among countries in the world. Our country is also committed to the development and utilization of marine resources in recent years. When working in the deep sea ,underwater exploration devices...

In the face of the current resource scheduling using the static load balancing strategy in cloud computing environment could easily lead to the waste of resource, the paper put forward a migration strategy based on the big data migration. The strategy will compare the current load conditions, and choose...

Face detection is a key technology in the information processing field of face recognition. The paper proposes a new face detection method to detect the human face. According to the clustering characteristics of Cb and Cr to detect the skin-color, then the image is labeled. The paper summarizes and presents...

Effect of alloying techniques of dollop-like yttrium, as-cast and extruded Mg-Y master alloy in AZ91D magnesium alloy on microstructure and the efficiency of alloying was studied by optical microscopy, scanning electron microscopy, XRD and inductively-coupled plasma (ICP) spectroscopy. The as-cast AZ91D-1.2wt.%Y...

A stochastic reliability model of the drum system of a hang type centrifuge drum is presented using stochastic reliability theory, where the stochastic reliability index and invalid probability of the drum system are determined by checking point algorithm and the system functional functions are built...

In this study, an acid and alkali resistance cationic polyacrylamide flocculants (P(AM-MAPTAC)) was synthesized through copolymerization of acrylamide (AM) and methacrylamido propyl trimethyl ammonium chloride (MAPTAC) by innovative ultrasonic initiation technology. The structure and thermal decomposition...

Interpersonal relationship plays a more and more important role in the real society. The study of relationship research algorithm is especially important .Based on the shortest path of graph theory and combined with the fact of the social network service (SNS) searching, the interpersonal closeness degree...

The bolted connecting is prone to slip results from external load in the transmission tower as the member is thin and the pre-tightening force of bolt is small. The influence of joint slippage is usually considered in the finely analysis of transmission lines tower. In this paper, the joint slippage...

The purpose of this research is to analyze the molding quality and energy consumption of biomass pellet fuel under three compression methods of uniform speed, uniform deceleration and superposition vibration. This article established a discrete element model of sandy shrub particles uniaxial compressed....

Human motion capture is widely applied in engineering bionics, ergonomics, aerospace, military defense, biomedical, sports competition and other fields. However, the human motion capture equipments are less developed in China. This paper presents a human motion capture system based on computer vision...

As people's income level rises and the changes of consumer consciousness, the number of insurance product is increasing, the public enthusiasm for buying insurance is higher and higher, as a result the insurance industry is developing rapidly. At the same time, policymakers should notice when gaining...

With the development of Internet banking and big data, the traditional credit rating in the sample data collection, model development, systems use and other aspects is affected. It mainly appears in the full quantization of data samples and enterprise behavior data which is unstructured, virtualization...

With the increasing demand for network service and rapid development of Wavelength Division Multiplexing (WDM) technologies, Wavelength Routing Optical Networks (WRON) is one of the best ways to realize an all-optical network. Focus on the Routing and Wavelength Assignment (RWA) problem in WRON, a routing...

Sensitivity analysis is a measure of the uncertainty of an analytical model inputs how to affect the outcome, many of the traditional technique uses probabilistic analysis model, this paper contains a subjective variable uncertainty and occasional uncertainty probabilistic sensitivity analysis with probably-box....

In order to investigate the dual effect of initial vacancy concentration and annealing temperature on oxygen clusters′ evolution in RTP-treated silicon wafer during low temperature annealing, an established phase-field model and the optimum design method based on response surface was used to simulated...

Manufacturing Enterprises must confront uncertainty and complexity of production areas consisting of different production elements. The traditional enterprises always rely on manually collected data and barcode data which causes inevitable error and inefficient production planning. While production logistics...

In the traditional lattice tower design process, the effects of bolted joint slippage are not taken into account, which cause great discrepancy between numerical analysis and full tower tests. In this paper, several joint slippage models are presented with considering the joint connection types and number...

Samples of pure phase CuAlO2 and transition metal element Fe doped were synthesized by solid phase sintered method. The phase structure, optical properties and miscellaneous phase formation mechanism were characterized by X-ray diffraction (XRD) and Infrared Spectroscopy (IR) respectively. The results...

A multiple adaptive fading cubature Kalman filter (MAFCKF) is designed by introducing the multiple fading factors to mitigate the negative effects of the uncertainties in dynamics or measurement model. The effectiveness of the proposed MAFCKF was demonstrated and proved by the INS/GPS integrated navigation...

Surface restructure for triangulation discrete data was the preconditions for discrete data to be widely applied in modern manufacturing. Due to using multi-core processors and connected graph traversal access algorithm, put forward a new method of surface restructure for discrete data based on parallel...

In recent years, the issue of environmental pollution has been widely concerned, and a large number of studies have confirmed that the short-term concentration change of air pollution is closely related to the number of deaths per day. As an important cause of death, the respiratory disease is attracting...

During cardiac 3D mapping procedure, the dynamic surface reconstruction of heart chambers helps to diagnose cardiac disease and improve the operation precision by keeping the catheter in place. The paper introduces a new fast dynamic surface reconstruction method considering the distribution characteristics...

Cloud computing is the important form of information service infrastructure and application model in the age of the Internet, is a new generation of information technology intensive development inevitable trend, its resource aggregation and virtualization, application services, and flexible specialization,...

A scheme for WSNs(wireless sensor networks) security is given by dividing sensing circle into sections and using the symmetric polynomials in this paper. Ordinary sensor nodes and heterogeneous sensor nodes are distributed in the circle equally. The keys among sensor nodes are established by utilizing...

It is difficult for end users to configure security models in operation system without technical knowledge, since security models are defined by experts who have security experience. Indeed, there is no complete method to translate user security requirements into implementable security policies. In order...

This article describes the design process of a three-phase AC soft-switching static power supply using discrete pulse modulation (DPM) technology. Firstly, the principle diagram of the static power supply of the combined inverter structure is given. The working principle of the main circuit of the soft-switching...

Behavior recognition and behavior understanding has been a popular topic in computer science. It attracted increasing interest in computer vision research community. Vision-based behavior Analysis has been applied broadly in many fields such as intelligent surveillance, perceptual user interface, and...

PC/ABS blend is widely used in the vehicle interior, electronic parts and accessories. In this dissertation, fracture crack properties of PC/ABS blend was studied. The specimens were prepared under various injections molding conditions, such as filling time, melting temperature and mold temperature....

The aerodynamic characteristics of ACSR conductor with the large section were simulated with the fluid dynamics software in this paper. The slightly compressible viscous fluid and the Spalart-Allmaras turbulence model were used to modify the wind around the conductor. The numerical simulation results...

TiNi matrix alloy is one of widely used shape memory alloys. We studied the influence of Nb content on the microstructure of TiNiFe2 shape memory alloy. The result of experiments shows the conclusions that the matrix of Ti50-xNi48Fe2Nbx is NiTi with B2 structure and and the phase transformation point...

Traditional transfer mode of process data cannot meet the needs of modern general aircraft. Digital data transfer is basis for digital aircraft assembly. In view of actual enterprise requirements for digital process planning, a frame subassembly is taken into study object, a 3D visual assembly process...

With the shortcomings of enterprise in our country increasingly exposed in the management, in which the quality problem of accounting information is particularly prominent, and to improve the situation, one of the key factors is to strengthen the internal accounting control of the enterprise. Internal...

Analyze the application of resonant voltage withstand test in the XLPE cable voltage withstand test, and the two methods of variable frequency resonant voltage withstand test were compared by an example. By comparison, the resonant voltage test method can effectively simulate the field voltage withstand...

This paper will design a set of comparative analysis system of unidimensional directional data to study correlation between traffic conditions and air pollution by directionally collecting air quality index and Beijing traffic data, and establish a mathematical model to forecast the change of air quality...

In order to investigate the effect of moisture on methane desorption and diffusion characteristics, a series of experimental measurements were performed on coal samples with different moisture contents. The experimental data was fitted and the mechanism that accounts for the reduction in desorption amount...

The work proposed F5 (0.000001)—an element in the set of FTSFM 5 (Fuzzy Time Series Forecasting Model 5). It is a time series forecasting model established based on the variables of historical data, percentage of historical data, the percentage of percentage of historical data, and inverse fuzzy number....

The algorithm based on multi-frame average is the classical algorithm in all kinds of key frame extraction algorithms. This method has better sense on averaging the extracted key frames. But it can only extract one frame at once, which limits the reflections about changes in the content of the lens....

Bending strain density threshold based on elastic damage theory, the j-integral based on elastic plastic fracture mechanics and Cohesion and crack opening displacement based on cohesive zone model were employed to evaluate the fracture resistance of asphalt mixture of SMA-13 AC-13 and CAM in the temperature...

Along with the unceasing infiltration and fusion of power cyber space and physical space, a typical power cyber physical complex system is constructed, which brings new challenges to the reliability evaluation of power information communication network. For the reliability assessment of power information...

The internal temperature of reinforced concrete members in fire directly influences the stress distribution and attenuation amplitude of performance. With ABAQUS finite element software, it analyzed the change rule about the temperature field of reinforced concrete beams with the development of time,...

In China, "bamboo culture" has a long history. As bamboo has the features of growing fast with high yield, as well as high intensity, rigidity, thermal stability, and other strengths in physical performance, the application of this material in architecture will help to promote the green and sustainable...

The paper aims to investigate the incentive mechanism of project supervision organizers by using the market-prestige model. The results of two-stage game analysis indicated that the game process can be maintained at least two stages under asymmetric information. In Stage I, the efforts of project supervisors...

In this Letter, a novel steganography of digital watermark scheme which contains digital watermark embedding and extraction processes is proposed. The proposed scheme is based on an iterative process of Arnold scrambling transform which is controlled by secret key shared by copyright owner and authorized...

Organizations of large and messy personal social networks are challenging issues. However, Construction of such a social circle will take the user a lot of energy, in addition, with the expansion of the user's social circle, the cost of updating timely is amazing. This paper presents a novel machine...

With the rapid development of information technology and network, the modern enterprise management model is also undergoing tremendous changes, companies must adapt to the financial management of network and information technology development. Enterprise financial management system is a financial planning,...

In order to investigate the internal pore structure of coal, the adsorption isotherms of coal particles with different sizes were measured using the Quantachrome Autosorb iQ specific surface area and pore size analyzer. The pore characteristic parameters obtained were analyzed including the specific...

F6(0.004) is an element of Set FTSFM 6 of fuzzy time series forecasting model. Its forecasting formula consists of historical data, difference of historical data, difference percentage of historical data and inverse fuzzy number. F6(0.004) was used to analyze historical data during 2006-2014 and forecast...

With the development of information technology, digital graphics are widely into our life. Whether learning, convey or commercial use, digital graphics monopoly on almost all the multimedia media in the modern art design. Sound art, visual arts and interactive art that developed along with the development...

The problem of multi-component radar emitter signal processing is studied, an effective method based on time-varying filtering is proposed to detect and separate the multi-component signal in radar reconnaissance occasion. Each signal component in the time-frequency plane is detected by the region growing...

In this paper, the preparation methods of flocculants are analyzed and summarized. Organic and inorganic polymeric flocculants. Their flocculation properties were studied, and the synthesis of green organic flocculant and its flocculation performance were carried out. Finally, this kind of research is...

Considering the current situation of the coal mine accident in our country. An intelligent gas monitoring system which has some prediction function is put forward in this paper. In the system, the microcontroller monitoring substation and CAN bus communication system is designed; a prediction method...

Cohesion and crack opening displacement based on cohesive zone model were employed to evaluate the fracture resistance of asphalt mixture of SMA-13 AC-13 and CAM at 10 5 0 -5 -10 . Using fracture toughness, cohesion and crack opening displacement index to analyze the crack resistance property of three...

In order to improve the effect of water injection and dust prevention in coal seam, the wetting process with water in coal was described in this paper. The coal surface tensions with six different aqueous solutions were measured and the contact angle of coal samples from Zhaozhuang Mine was tested. The...

The first step of the license plate automatic recognition is the license plate location,therefore,the license plate location method is very important to the license plate automatic recognition.A license plate location method combining the license plate location method based on the HSV color space and...

Based on investigation data on Cu in surface and bottom waters, we analyzed the horizontal and seasonal variations of Cu in waters in the bay mouth of Jiaozhou Bay, eastern China in 1984. Results showed that, the seasonal variations of Cu contents in surface and bottom waters were consist that Cu contents...

In the era of knowledge economy, knowledge management has been recognized as an important means to enhance the competitiveness of enterprises, and the access control of enterprise knowledge is a main mechanism of information system security. In this article, through analyzing the type of enterprise knowledge,...

In the traditional agricultural society, the temple is the religion-centric of the village settlement. In the villages of Yuxian fortresses, all have their own unique ancestral temple buildings which not only provide the place for residents praying, but also are local social place for defence, culture...

Based on comprehensive considerations of influences generated by stiffness excitation, deviation excitation, meshing impact excitation, friction of tooth surface, and other kinds of nonlinear factors, it established a nonlinear coupled vibration model of bending-torsion-axial-swing coupled helical gear...

At watermarking is developed, The construction proposed in this paper is based on a no subsampled pyramid (NSP) transform and wavelet transform (WT).The result of no subsampled transform is a flexible multiscaleand shift-invariant image decomposition that can be efficiently implemented via the à torus...

In order to study the influence of nitric acid doping on the adsorption of Li on the surface of graphene，the adsorption and diffusion behavior of Li adatoms at three high symmetry sites on graphene and NO3-??'graphene were systematically investigated by the first-principles method based on density functional...

The independent college wants long-term development will have a reasonable structure of teaching staff, because the independent college teaching situation has its unique characteristics. So in independent college teachers, on the basis of the basic situation of the existing framework is used to describe...

Based on Kaya identities, the LMDI decomposition method is used in building a factor decomposition model for Chongqing's carbon emission of energy consumption to perform empirical analysis on the impact of Chongqing's population, economic development, energy consumption structure, industrial structure...

Flexible polyurethane foam has been treated with borax, expanded graphite (EG), EG/borax as flame retardant, respectively. The thermal degradation of samples has been studied by thermogravimetry (TG) and differential thermogravimetry (DTG) in air. From the resulting data, kinetic parameters for different...

During object tracking, Fast tracking via Spatio-Temporal Context Learning which combines temporal correlation among sequential frames and spatial correlation between object and background can solve the problem of semi-occlusion, but not full-occlusion. Kalman Filter makes use of the predictive value...

This paper analyzed the contents, horizontal distributions, sources and spreading process of Pb in Jiaozhou Bay, China based on investigation data on Pb in surface waters in 1985. Results showed that Pb contents were 11.4-42.8 g L-1, and were confirmed with Grade IV in according to Chinese Sea Water...

Process parameters of AZ31 Magnesium alloy profile expanding extrusion are researched, such as extrusion temperature, extrusion speed, deformation degree, etc., and AZ31 Magnesium alloy profile expanding extrusion are implemented. Extrusion speed and production yield are effective elevated by effective...

In2O3 films were deposited on K9 glass by direct current magnetron sputtering with different oxygen partial pressure percentage. It is found that the films have a body-centered cubic structure, a relatively high transmission in the visible range and an optical band gap of around 3.75 eV. The conductivity...

Gas well head pressure sensors are the important front-end equipments of digitalization construction of Changqing oil field. Foreign pressure sensors are once relied on for a long time there. A problem urgent to be solved of digitalization construction is to develope pressure sensors with independent...

Aiming AODVjr existing zigbee routing algorithm used in the network node energy consumption leads to low energy loss problems quickly, this article from the node to start binding energy clustering mechanism AODVjr propose an improved algorithm by the route selection process according to the current node...

The purpose of this study is to improve the efficiency of fault diagnosis and quickly aim fault propagation path. This paper introduces the modeling and reasoning methods of Improved Fault Petri Nets (IFPN) based on existing concept and method of modeling for fault Petri nets. IFPN shows network fault...

With the development of information technology, production and business activities of enterprises have tremendous changes. In recent years, with the rapid development of Internet, e-commerce became popular, the transaction using the Internet has become an inevitable trend. With the development of the...

Private college is the important constituent of higher education system ,To improve the quality of teaching, to promote teachers' quality and enhancement the teachers' teaching ability ,it is necessary to evaluate teacher's ability. Paper is on the basis of the existing teachers' assessment, proposed...

Based on the SBM model and the Malmquist-Luenberger index operation, this paper analyzes the regional industrial growth efficiency from static and dynamic aspects. For static efficiency, the overall efficiency of industrial growth in China shows a trend of decreasing from east to west. The pure technical...

Complex of cell-THPC-thiourea-ADP with lanthanide metal ions Dy3+ has been prepared. The thermal stability and smoke suspension of the samples are determined by TG, DTA and cone calorimetry. Experimental data show that for the complexes of cell-THPC-thiourea-ADP with the metal ions, thermal decomposition...

Aiming at randomly sine-maneuvering target tracking in the precision guided system, a fast and efficient algorithm is proposed for multiple model adaptive estimation. The filter bank corresponding to target maneuvering model was adopted to estimate the acceleration of the target, which can improve the...

The APDL (ANSYS Parametric Design Language) and mathematical optimization algorithm are applied for the optimization of the mushroom-shaped root-rim structure of turbine blades. In the optimization the better structure is obtained, and the maximum equivalent stress is notably reduced, which proves the...

In this paper, the effects on the finite element analysis results of mesh size and mesh compatibility would be discussed based on a shear wall which has non-aligned holes. The computed results based on the compatible mesh and non-compatible mesh would be presented and compared. Similarly, the FE models...

Index weight is determined in this paper based on the method of entropy weight, and the evaluation system of the low carbon economy development level on Huludao is built, the comprehensive evaluation index of low carbon economy development level on Huludao is calculated from 2005 to 2014, and the results...

Resin mineral composite has drawn much attention in the field of elementary machine components due to its excellent damping property. The effects of postcure temperature on mechanical properties of resin mineral composite were investigated in this paper. Research results showed that the glass-transition...

This paper summarized the preparation and mechanical properties of current biomedical metallic materials, which contained medical stainless steel, titanium based alloy, magnesium alloy. Preparation covered metal smelting, powder metallurgy and micro-arc oxidation technology. The mechanical properties...

Uers organize networks and exchanges with the help of social networks, clasiffy the friend to the so-called social circle of friends. Construction of such a social circle will take the user a great deal of time. This paper presents a machine learning methods, he mutual networking between friends is as...