Advances in Engineering Research

In the view of the information inaccuracy and additional information in the web page recommendation algorithm of multi similar web pages, the data clustering effect is not satisfactory. In this paper, a new method for the image denoising method based on the rough set of Gauss block is proposed. Firstly,...

To investigate the transient aeroelastic responses of a folding wing during morphing motion, a time-varying aeroelastic equation in state space is presented. The structural model is established based on the component modal synthesis method. A time-dependent transformation is introduced to establish the...

The purpose of this study is to provide an improved design for the hydraulic system of a certain type of hydraulic elevator in the elevator test. This paper is mainly through the speed feedback control scheme to achieve real-time speed correction, adopted the speed bidirectional detection method to establish...

With the thoroughly implementation the of the concept of sustainable development, the electric cars become more and more popular, and as the increasing scale of mobile storage devices, electric vehicles, its ordered charge and discharge is playing an extremely important role in the smooth operation of...

Pile foundation of buildings have not only bear the load from the upper structure, but also bear the earth pressure from the slope, its load transfer mechanism is more complicated. Hence, it is important to study the pile-slope interaction mechanism, and to improve the lateral capacity of pile foundation....

The main drive system using for four-high rolling mill is usually a double closed-loop DC motor speed regulating system—whose performance influences the product quality directly. In this paper, the model specific parameters required for the main drive system are calculated by the method of engineering...

Boiler’s combustion efficiency directly reflects the status of its operation and affects the economical efficiency of the power plant.As we know,what mainly influences the combustion efficiency is the heat loss,and the excess air coefficient is an important factor affecting the heat loss.This paper’s...

Airplane frame parts can form by the method of increasing the transition mould. The main purpose of the transitional surface design is to change the material flow state, and make the material flow is uniform. Mainly studied forming process to a typical frame sheet metal part, analyzed the forming characteristics,...

The fracture problem around the center crack in an infinite transversely isotropic piezoelectric plate under the anti-plane shear stress and the in-plane electric load at infinity is studied. Using the complex function method and undetermined coefficients method, the analytical solutions of the stress,...

Objective: To evaluate the accuracy of CT in the diagnosis of esophageal fistula (Anastomotic leakage). Methods: Retrospective analysis of 186 cases of suspected postoperative esophageal postoperative intracavitary AL patients, 70 cases take oral 60% compound diatrizoate (contrast agent) CT examination...

Stability of high cutting slope concerns safety pass of road at the bottom of slope and has relationship with security and stability of buildings on the top of slope. On the basis of ANSYS finite element strength reduction method, this paper does elastoplastic nonlinear and large deformation geometric...

This paper presents the methane detection at low concentration based on 2f harmonic signal to achieve highly sensitive monitoring. Since methane is the characteristic gas in power transformer oil once a thermal fault at low temperature (

This paper evaluated the productivity of the construction industry in Henan province from three aspects including total productive efficiency, pure technical efficiency and scale efficiency, by using of the DEA model based on the construction of Henan province in 2000-2014 input and output historical...

The cognitive modeling of the HCI task has been a hot area in HCI research. And it is an important method to understand the cognitive decision process and mechanism behind operators’ behavior. Since the software of HCI task and the software of cognitive modeling generally run on different platforms,...

Based on the features of the falling film absorption, a CFD model of heat and mass transfer of falling film absorption in a vertical tube using LiBr /H2O as working fluid was presented. The CFD model using the volume of fluid (VOF) method was presented for predicting the mass-transfer process of the...

This paper analyzed the content and distribution of Cr in bottom waters in Jiaozhou Bay in 1983. Results showed that Cr contents ranged from 0.06-1.58 g L-1, and were confirmed with Grade (50 g L-1) in according to Chinese Sea Water Quality Standard (GB 3097-1997), indicated that the pollution level...

This paper introduces a system which is designed for the transmission design business which make it possible to achieve electrical design, structural design, technical and economic analysis, environmental design and resource sharing. This platform functions in various stages including the informatization...

A new trajectory tracking controller for a wheeled mobile robot based on back-stepping and Lyapunov approach is presented. The proposed controller is developed based on the kinematic model and dynamics model of wheeled mobile robot. Firstly, the kinematic controller is designed by using back-stepping...

The precision and reliability of sensors are tested rigorously under the influence of low temperature as on-line monitoring technology sensation unit of transmission lines. In the paper, bending amplitude method was applied in aeolian vibration monitoring devices of transmission lines. Device function...

In mobile learning concept . In the first part, the reconstruction of the digital learning resources classification model is established, and then the the cloud based education platform "teacher student subject knowledge ontology" three-dimensional space application model based on. Finally, it designs...

The stress-strain curve of fractured rock mass can be divided into two parts, the pro-peak and post-peak. The pro-peak part of the rock stress-strain curve is generally stable and its mechanical behavior can be described with classical strength theory. Rock post-peak stress is very complex and generally...

With the development of the mining industry, mining technology is constantly innovation. Mining technology plays a vital role in the mining industry. Mining technology is reasonable or not, and the level of mining companies technology, directly have impact on the overall effectiveness of the mining companies,...

CO2 flooding technology and sequestration is one of the main ways to avoid global warming. The existing research both at home and abroad and the experimental results show that as an oil displacement agent,the CO2 injected in the reservoir can greatly improve the recovery efficiency of oil and gas. At...

In the electric energy metering device, due to errors of a current transformer or a voltage transformer phase sequence and polarity, wiring false often happens in the electric energy metering device. It affects the accuracy of electric energy metering device and results in inaccurate metering. For this...

Roof leakage has become a common problem on housing quality, which not only affects normal use of houses, and erodes the main structure of buildings, but brings about great challenge to infrastructure maintenance and seriously shortens service life of buildings. Starting with the common causes for roof...

Since the airplane is invented by Wright Brothers, it has greatly improved people's traffic efficiency and produced large quantity of fortunes. We built a model to draw a sensible searching scheme. The major assumptions are: 1) the wind and the ocean current are only related to the geography location...

Based appear for magnetic navigation system for substation inspection robot navigation course accumulation of errors phenomenon, fuzzy PID control algorithm is applied to inspection robot navigation system, navigation path through the logic of correction, to achieve stability navigation. On the movement...

This paper designs a dynamic monitoring system applied to four cold rolling mill for Magnesium alloy sheet. The system select Siemens WinCC6.0 for Monitoring interface and Siemens S7300PLC for lower machine as the core for data communication and dynamic monitor, The main interface of the monitoring system...

An improved Allan variance method (IAVM) is proposed for the characteristics analysis of the band-pass mixed noise to distinguish the different types of the noise in the band-pass mixed noise and give the corresponding intensity coefficients of the power spectral density (PSD) of the noise. This proposed...

Owing to large capacity and high speed, DDR SDRAM has been widely used in the data acquisition system of time-of-flight mass spectrometer (TOF-MS) which can detect and analyze biological and chemical macromolecule precisely. Due to the particularity of the requirement of large amounts of data accumulation...

Based on the investigating and survey of the potential safety hazards of the buildings, a fuzzy comprehensive evaluation method was proposed for the safety evaluation of the existing buildings. First of all, establish a multi-level comprehensive evaluation model for the safety assessment of the existing...

On the basis of the discussion of green design, the characteristics of green product are analyzed. Pointed out that the green design is the need of sustainable development of human society, is the necessity of sustainable development. In order to make the social and economic sustainable development,...

In order to verify the conclusion of push-out test and further analyze the influence of each parameter on the hat-shaped shear connector, a finite element analysis model of shear connector was established; To study the influence of the change of the diameter of the steel plate of the hat-shaped shear...

On the basis of a clear definition of the meaning of the competitiveness of agriculture, proposed by four factors, 10 basic indicators constitute agricultural competitiveness evaluation index system, comprehensive evaluation identified by factor analysis, and the use of detailed statistics on the east...

Concave and convex flanging is a relatively common form in sheet metal forming.However,since the sheet edge of flange parts is an unclosed free state.After curve flanging forming,there is a shape distortion phenomenon in parts. This shape distortion has a great impact on the quality of flange parts.In...

This paper analyzed the community structures of phytoplankton in Fushan Bay in June to August 2002. Results showed that phytoplankton in Fushan Bay was dominated by Bacillariophyta and Pyrrophyta, whose species accounted for 74% and 24% of total phytoplankton species, respectively. Chaetoceros and Peridinium...

Concrete filled tubular arch bridge was widely used in China. The large dead weight and non-integrity of prestressed concrete deck above the arch went against the durability and bridge seismic design. Modified verbundfertigteil (VFT) was proposed as deck in the arch bridge. Modified VFT girder was convenient...

Offshore wind power is a frontier field of wind power technology, which is actively promoted by the countries all over the world. At present, UK offshore wind power takes the lead in the world, establishing mature offshore wind power management systems and procedures, and then provides references for...

The stiffness of fully cured two-component epoxy resin was studied by means of Dynamic Mechanic Analysis (DMA) in this research, as well as the temperature sensitivity and frequency sensitivity. The relaxation properties was included, both one fully cured resin and oven aged resin. Research results illustrates...

Arctic system is an important part of the Earth as a whole system, monitoring and research polar marine environment, to reveal the rapidly changing Arctic marine environment and its significance in response to the feedback effect of changes in the Earth. However, due to the harsh weather conditions of...

In this paper, the near infrared spectroscopy analysis technology, combined with the traditional appearance of quality testing and chemical analysis methods, the establishment of red date quality characteristics of different quantitative digital calibration model. Based on the accumulated data of red...

Taking example for Pu'er raw tea 7542(106) in paper, sample pre-treatment conditions ( Headspace) and detection of the gas chromatography mass spectrometry (GC-MS) were optimized. Under the condition of optimization, the chromatographic fingerprints of nine batches of Pu'er raw tea 7542 sample for different...

Color plays a significant role in the interior space design of high school libraries. From the perspective of the color’s influence on library users, this study analyzes how the scientific use of color can provide readers with high-quality reading atmosphere and explores the new development trends of...

Based on ventilation network graph is rooted directed weighted graph, its’ nature of minimum spanning tree is proposed. According to the dense of ventilation network graph, introduces heap to improve the Prim algorithm, gives C++ implementation for the algorithm, and finally gains the Prim algorithm...

A pilot-scale anoxic-anaerobic oxidation ditch process was used to investigate the influence of varying temperature on organic substance, nitrogen and phosphorus removal, and the efficiency of these pollutions removal in about 15 ˚C. The results indicated that when the temperature was dropped from about...

The study investigated the effect of coagulant dosage, flocculation time, and precipitation time on the turbidity removal rate of Oxidized Poly-silicic-ferric (OPSF) coagulant compared with the polyferric aluminum (PFA) coagulant. The effect of OPSF on coagulation and filtration under short-time coagulation...

Based on extensive usage of the smoke exhaust ventilator, this paper develops a processing technology of VOCs (volatile organic compound) by photo-catalytic-oxidation technology. This method couples with the existing the smoke exhaust ventilator technology to control the cooking fume emission ---VOCs.

According to the base theory of heat transfer, a thermodynamic for the permanent synchronous motor of hybrid electric vehicle was studied. The conception of temperature modulation factor was introduced; the temperature raise impacting the fundamental characteristics for motor was analyzed. Then the thermodynamic...

Through the analysis of TN-C and TN-S connection mode, this paper expounds the advantages and disadvantages of TN, the voltage distribution of the load is introduced through an example, and further introduces the necessity of developing neutral wire over current alarm device in the distribution network,...

The aim of this study was to investigate the surface propertity and biocompatibility of Ti and Ti6Al4V after the treatments of sandblasting by Al2O3 and etching by hydrochloric acid-sulfuric acid mixture. Surface morphology of samples was observed using scanning electron microscopy and the roughness...

Airborne Electronic Equipment data is unmeasurable, and computing the parameter based on component model is inaccurate and is time costing. The paper presents airborne electronic equipment parameter estimate method based on clustering by fast search and find of density peaks (CFSFDP) and ant colony optimization...

The internet is facing many crises and difficulties in the rapid development period. More and more people begin to pay attention to the problem of network security. The most effective strategy is to use data encryption technology to protect the safety of the network. Data encryption technology is divided...

Magnetic nanoparticles have been widely used in the field of biotechnology and medicine, which has a great importance to precise and quantitative detection. This paper introduces a magnetic nanoparticles detection device of low cost, high sensitivity and real-time. When the diameter of the magnetic nanoparticles...

The stock market is an important part of the securities industry and financial industry essential, universal attention by investors. Effective stock prediction plays an important role in the field of financial investment, so on the stock price of analysis and prediction has a very important theoretical...

Laser arc sound signal hides welding status information. It is a great significance to control the B&K company and four channels input sound and vibration analyzer. Using wavelet base which is db4, combining different methods to decompose laser arc sound signal. These methods include hard threshold,...

Cr is one of the critical industrial heavy metal pollutants. Understanding the pollution level and source of Cr in the early stage of the reform is helpful to provide background information to environmental remediation. This paper analyzed the content and distribution of Cr in Jiaozhou Bay waters in...

The latest research progress of the floating hydraulic wave power generating device -- (Dragon I) is introduced in this paper. Dragon-I is a kind of point absorbing wave energy conversion device which uses hydraulic electricity generated system with energy storage function as the intermediate link to...

In this paper, the mixed abrasive jet mixing chamber was used as the research object, and the mixing efficiency was improved by introducing the flow around the cylinder in the mixing chamber to enhance the chaos of the flow and promote the turbulence fusion. The three parameters of cylindrical azimuth,...

Safety accidents are much more than general occasions,therefore strengthen the simulation training safety technology training,which could make the worker familiar with tools of production safety operating rules,is particularly urgent!Electric marketing skill training is an important part to keep electricity...

For fulfilling the household appliance's product lifecycle management, in this paper, while taking the refrigerator as the research object, a product lifecycle management system based on radio frequency identification and the electronic product code internet of things is designed and developed. The PLM...

From the point of view of sustainable development, wastewater zero discharge is undoubtedly one of the best measures. Saline wastewater reuse domestic power plant desulfurization system research is very few. This paper analyzes the effects of high concentration of SO32- on wet flue gas desulfurization...

This paper's objective is to study the influence of music therapy and information technology on bad feelings and cognition of high blood pressure patients. The method adopted is to make a retrospective analysis of 100 cases medical records of patients with high blood pressure admitted in a hospital....

The curing behaviors of two-component epoxy resin was studied by means of Direct Tensile Test (DTT) in this research at the curing condition of 14 °C. The direct tensile strength was investigated as well. Research results illustrates that the investigated two-component epoxy resin needs about 4 days...

China puts forward the green development strategy in the "Twelve-Five Year" Plan. In the report of "The 18th National Congress of the Communist Party of China, "green" is the core of ecological civilization construction of five development concepts, "green" is the core of ecological civilization construction....

In operation system of farming machine, the moving target detection is a key part of the monitoring system. Aimed at the shortcoming of poor detection effect of Gaussian background modeling, this paper proposes a detection method based on non-reference background model. The model utilizes the previous...

Seven-year-old tree of Ziziphus jujuba ‘Zhanshanmizao’ cultivated in field were used to study the degree dormancy, chilling requirement (CR) and dormant physiological indexes such as the content of water, carbohydrates, free amino acid, and soluble protein. The results showed that the Z. jujuba ‘Zhanshanmizao’...

Grounding technology plays an important role in ensuring safe and reliable operation of the power system and the personal safety. Grounding resistance as an important ground parameter, dictate the degree of electrical safety. This paper introduces the basic principles of testing the grounding resistance,...

This paper firstly analyzes the problems in the existing micro-grid protection. Then, the paper puts forwards a new method for micro-grid protection judgment and fault location. By using the communication system, the over-current protection device can satisfy the protection-requirements of alternative...

A meso-scale discrete element model(DEM)of barite concrete beam was developed by the aid of DEM software PFC2D. Using this model, numerical simulations of the test conditions in meso-scale were conducted as well. The dynamic failure process of barite concrete was simulated by changing the quality and...

In recent years, tilt rotor aircraft has been greatly developed because of its excellent performance. However, because of the complicacy in transition mode study on this aircraft is needed. In this paper a six degrees of freedom dynamic model of the tilt rotor aircraft was established, and PID controller...

The seismic signal denoising is to extract useful information from seismic data, remove interference noise and improve the signal-noise ratio to lay the foundation of subsequent treatment of the seismic data. The paper gives the basic principles of the curvelet transformation and puts forward the method...

The PTT fiber is one of the elastic polyester fibers Owing to the similar physical and chemical properties of PTT fiber and PET fiber, the current testing standard methods are difficult to measure their blending ratios. According to the density of PTT (1.33 g/cm3) is slightly lower than PET (1.38 g/cm3),...

In order to comprehensively generalize the research status quo, achievements as well as deficiencies on the power system reactive power optimization algorithms, a universal reactive power optimization model was introduced in this paper, and a variety of common traditional optimization algorithms, artificial...

Time reversal technique as an excellent channel equalization technologywhich can restrain multipath effectively to implementation time focusing and can improve the distribution of energy in space to implementation spatialfocusing.This paper aim to improve the shortcomings with poor accuracy of positioning,a...

In traditional non-local mean value algorithm, both filter parameters and measurement of search neighborhood are constant globally and it does not show diverse structural features of different areas in images, which makes the weight of similarity of image blocks distributed unreasonably, and thus de-noising...

In order to realize network for instrumentation without network interface, current instrumentation's network was studied. It adopted AODV routing protocol in wireless Mesh network and designed multiple-interface instrumentation network agent, which could connect network and control terminal interconnection....

Whether and in what degree the facade decoration of rent shops on ground floor in a high rise residential building affects the earthquake-resistibility of the structure The author analyzes the mechanics quantitatively, and draw that the seismic level of the building will reduce about 0.3 level. Additionally,...

Stiffening rings has a greater impact on the equivalent stress of steel, especially when the stiffening ring has proper spacing and the large rigidity, the stiffening ring will share part of the load, so it can lead to the circumferential stress of steel reduce. Selecting the appropriate stiffening ring...

People will always carry wet umbrella to shop, libraries, and other indoor places. These phenomenon always contribute to wet and slippery ground and a series of complex cleaning work which indirectly reduce customers’ purchasing power. Based on this kind of phenomenon, we explore to design a magic umbrella...

The performance of nitrogen and phosphorus removal in a pilot-scale anoxic-anaerobic oxidation ditch (OD) process was investigated. In order to achieve a high removal efficiency of nitrogen and phosphorus, the aeration was optimized and an anoxic zone was formed in the front of OD reactor, thus the operation...

With the development of science and medical industry, people pay more and more attention to their health status. And massive human health data are generated in this process. As an important component of the cloud computing technology, the open source framework Hadoop provides us with a platform for storing...

A Hamiltonian mthod is proposed to solve the steady state heat conduction problem. Due to the completeness property of the eigensolutions, any solution vector can be easily described by linear combination of the fundamental solutions. The method can be used to directly solve various boundary condition...

The hydraulic steering gear is an important equipment of the ship and its failure could contribute to navigation unsafely. With regard to the failure of a certain hydraulic steering gear and inspection of the steering mechanism, this article specifies reasons for the failure of the steering gear and...

Power system is an important part of power electronic technology application domain. With the rapid development of electronic power components and computer technology, power electronic technology has been widely used in power system. It is of great value and significance in stable operation of power...

In the process of operation, the loading condition of automobile steering knuckle is very complex, which seriously affects its structure strength and fatigue life. In this paper, finite element analysis is applied to calculate and analyze the deformation and stress distribution in steering knuckle under...

In PV microgrid control system, the delay and filter inductance value change will influence the response speed, stability and grid-connected current distortion rate of system. Therefore, this article proposes a power feedforward robust prediction dead-beat grid-connected control method. The system’s...

Concrete structures built in marine environment are susceptible to attack by chemicals such as chloride which diffuses into concrete structures and attack the reinforcements embedded in reinforced structures and break down the reinforcement protective layer. This paper presents the use of Abaqus Finite...

It was discovered that there was prominent interaction among transformer oil moisture content, acid value, furfural content and insulation paper polymerization degree during monitoring of transformer operation. Therefore, insulation paper aging and furfural generation under the action of thermal energy...

Due to the runway unevenness, random vibration will occur of aircraft landing gear during impacting and taxiing phase. In view of the simplified two degrees of freedom model of landing gear, the nonlinear dynamic equation of the system can be established. By using the military specification’s formula...

Aiming to the problem of running with the capacitor bank balance protection action causing tripping, by on-site analysis of the phenomenon and the capacitor discharge coil voltage ratio test checks, secondary coil voltage has relatively large errors caused by the tapped discharge coil. When the system...

Iron ladles tracking is the basis of BF—BOF iron production scheduling and is very important for the close convergence between the production of ironworks and steelworks. Recently in most of the domestic steel plants, the tracking of iron package is done by humans, which is unable to be timely access...

The development and stabilization of the society are related to the production and operation activities of Power Supplier, who undertakes great social responsibility. It is high qualified services of Power Marketing is the fundament of creating economic benefits. Setting out from the important value...

The nickel deposits of different microstructures were obtained by electroforming with abrasive-assisted, .The effects of friction strength on the surface morphology and the microstructures of the deposits were studied. The results indicate that the deposits with homogeneous microstructures were obtained...

This article tries to find an arbitrage strategy in the gold prices market of China. And the method is the linear regression based on the time serious date, the gold price, the gold companies’ stock prices and other metals prices from 2002 to 2014, and the data of different period, so we tried to test...

Arch dam is a water retaining arch structure that convex upstream on the plane, the stability of arch dam does not need to rely on its own weight in water to maintain, mainly using the reaction of the bedrock of arch side to support and the section of arch ring mainly bear the axial reaction force, which...

Chlorophyll-a concentration is an important parameter of the Southern Ocean water environment, and is influenced by factors such as melting sea-ice and so on. This paper validated and justified the applicability of chlorophyll-a and sea-ice extent derived from MODIS data in understanding the spatial-temporal...

To improve the long-distance transmission cable interface test automation level, proposed feature extraction based on the type of adaptive signal recognition technology. Through various types of interface signals in time domain and frequency domain characteristics analysis, using interpolation to achieve...

The paper analyzed a steel thick cylinder, established a bilinear kinematic hardening model based on the von Mises yield criterion. We also considered the parameters of the material yield limit, the autofrettage pressure, working pressure and cylinder diameters, studied of a response surface model to...

In this paper, first of all, how to realize the real-time positioning of the robot by the inertial sensor was discussed. Secondly, how to realize the real-time positioning of robot by visual sensor was discussed and researched deeply. Finally, combined with low-cost inertial measurement unit (IMU) in...

Agricultural expert system has been widely used in developed countries, but these cutting-edge technologies have not been universal used in the China's agricultural production, because terminal equipment is inconvenient to carry and complicated to operate for farmers. Under this situation, this thesis...