Advances in Engineering Research

Cars have gradually become one of the most popular modes of transportation for people’s travel. However, the concern now is about their carbon dioxide emissions and their impact on global warming. If we want to improve the image of cars, then aerodynamics can contribute to this process. This paper explores...

In the oil and gas exploration industry, martensitic stainless-steel (MSS) pipes are commonly employed for its corrosion and abrasion resistance. Binding materials with a thickness of less than 6 mm is typically accomplished using a TIG welding procedure with ER410H as the filler material. It is believed...

In the past decade, multiple accidents related to spent fuel pools have occurred consecutively, a large part of which are related to the large sloshing of the liquid inside the spent fuel pool under earthquake action. In order to study the influence of liquid sloshing on the dynamic characteristics of...

Since the theory of virtual reality unfolded before our eyes, computer technology and interaction technology develops. Virtual reality technology gradually applied to a large amount of field, and brought its remarkable results. As an integral part of human life, medical education is drawn people's attention...

Siltation in the rivers downstream of floodgates is serious in China, making the discharge capacity of rivers decrease obviously and threatening the flood control in upper rivers. Tidal wave deformation is the dynamic characteristic of downstream floodgates, sediment from the sea is the main source of...

Eccentric brace was used in the semi-rigid steel frame to improve the lateral rigidity as the steel frame has poor lateral displacement resisting ability and large deformation under the seismic action in spite of its better energy dissipation and seismic performance [1-10]. The elastic analysis under...

The grain refinement effect and related strengthening of alloying element Sb on as-cast Mg-5Y-3Sm-0.8Ca (wt.%) alloy were investigated by microstructure observation, theoretic calculation and tensile tests. The results showed that Mg3Sb2 phase with high melting point is formed in the alloy after Sb addition....

China is characterized by vast territory and wider distribution of strong wind easy-happening areas (typhoon, tornado and squall line wind). Meteorological environment conditions are complex and harsh in power transmission line corridor passage (especially in alpine regions). Safe operation of power...

By using sphere pair with unilateral constraint, the limbs of the proposed pre-stressed six-axis sensor must be under pressure in the measurement process, so prior to measurement, a certain preload must be applied to the sensor. The viable limbs’ number of the pre-stressed six-axis force senor is determined...

Coal quality detection is used to measure moisture in coal, ash content, volatile and quality percentage content of solid carbon, is an important way to understand the characteristics of coal, is also a fundamental basis of evaluation of coal quality. Coal quality analyzer is an important instrument...

Building Information Modelling (BIM) is a powerful tool for architecture, engineering and construction industry. Nowadays, it is widely used in the world. This paper first introduced the development of the design tools, generally three stages, from pen and paper to 3D design with information. Then illustrates...

Based on the MHD model of FLUENT software, we do a two dimensional numerical simulation about the MHD propulsion pipeline of the ship in electromagnetic coupling field. Having validated the established results, according to the research object, we make an appropriate simplification and assumption for...

In order to accelerate the restoration and utilization of mine wasteland, this paper describes an optimization study on substrate materials. The optimization was based on nine well-planned orthogonal experiments (OA9 matrix). The experimental materials were tailings, turfy soil and sawdust, and the experimental...

Automotive repair information disclosure service platform is deployed on the internet which is open to the web users. The system’s security should be seriously considered. The safety methods and technology applied in the process of deploying is discussed, such as institutional construction, server protection,...

For rotor blades of the 1.5MW wind turbine, combined with ANSYS software, finite element analysis had been made. Vibration frequency on the wind turbine blades at different bands has been calculated. The result provided theoretical basis for the operation of wind turbine.

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

For the pile-wall supporting structure system, the failure modes of the excavation are different owing to various retaining structures and bracing systems. Thus the displacement of the soil can be considerably different. By using the material point method, the displacement of the soil with different...

To meet the demands of rotating machine monitoring system for self-power, a novel PZT wind generator (PWG) was presented. The influence of magnetic force (number and configuration of the magnets) and wind speed on energy generation of the PWG was investigated experimentally. The research results show...

This paper uses OLS parameter estimation method and GDP, per capita disposable income, export, foreign investment and exchange rate fluctuations as the five factors for our multiple linear regression analysis, and the economic significance, statistical significance and econometric test are made. The...

In order to recycle the waste heat of the dyeing and printing factory, analysis about dyeing and printing waste heat and its current running system of the factory were obtained in this paper. Analysis indicated that most of the waste heat was unemployed. The recycling order of all kinds of waste heat...

In this paper through the establishment of the Midas model, mainly discusses the non abutment slant leg rigid frame bridge in different position in the temperature change stress changes. The results of the study show that, with the Overall temperature changes, no abutment slant leg rigid frame bridge...

Most existing Application layer multicast (ALM) solutions use a tree structure to deliver the multicast data. However, the data distribution of tree-based ALM is unreliable because of group members’ dynamics and the error correlation of the ALM tree. In this paper, we propose a SDN-like loss recovery...

Water ecological carrying capacity of basin is important basis to whether coordinated development for basin resources, environmental and economic society, is important means to impetus sustainable development of water ecological environment and social economy. Take Tieling section of Liao River as an...

Through the analysis of the radar and jammer transmitter and the antenna system, a shared broadband transmitter and antenna design was proposed, which can transmit signals and interference detection in 8~16GHz. Through the analysis of the radar receiver and jammer, a design of integrated receiver based...

In computer vision, real-time object detection is a crucial problem with applications in a variety of fields, including robots, security monitoring systems, and driverless cars. The MS COCO (Common Objects in Context), is one of the most important datasets for object detection techniques. The purpose...

With the increasing demand for light-duty diesel trucks in urban and surrounding areas due to the growth in China’s road freight and urban distribution, the issues of fuel consumption and environmental emissions have become more severe. This paper proposes a fuel consumption prediction optimization model...

Premium coffee has a market segmentation with high prices because it has carried out coffee bean processing following SNI standards, especially coffee quality defects. Drinking coffee is related to the effect of freshness after drinking coffee, and the refreshing product comes from the caffeine content....

Cakalang fufu, a traditional smoked skipjack tuna product from North Sulawesi, requires a reliable sterilization process to ensure product safety, extend shelf life, and maintain quality. This study presents the design and implementation of a solar-powered retort machine integrated with an Internet of...

This study describes the production process of glass production lines; according to the production process is designed to take the line terminal board manipulator, using Pro/E software to design the mechanical structure of the three-dimensional simulation, but also gives some standard parts design and...

A novel dry electrical discharge micro-grinding (EDMG) method was proposed to grind tungsten carbide in this paper. The V-shape tip truing experimental setup was built to realize the precision truing of diamond grinding wheel micro tip. The trued V-tip diamond wheels after mechanical truing and dry ECD...

In view of the doubly-fed wind power generator (DFIG) under grid voltage unbalance, double frequency disturbance component will cause a series of electrical and mechanical problems. A novel DFIG-DVR system is proposed to ride-through unbalance grid voltage conditions, the series coupled DVR of which...

Automatic vending system is being widely used, the system of business process was mainly related to data flow and control flow, so the soundness analysis for business processes of automatic vending system is more difficult. The existing research about the soundness analysis of the process model is mainly...

The 0.36(Bi(1-x)Cex)ScO3-0.64PbTiO3 (x = 0.01-0.10) ceramics were prepared by using conventional mixed oxide ceramic processing, and the effect of Ce addition on the BiScO3-PbTiO3 (BSPT) system was investigated. The results of X-ray diffraction show that lower stability of the perovskite phase is produced...

In this paper, a binocular vision system is adopted to realize the positioning of the robot. By using color and shape recognition method, the target image is processed by image processing, and the target image is obtained more complete and accurate, and the position of the target object is obtained by...

The working process of the furrow opener is the state of movement between the working parts and the soil particles. The discrete element method (DEM) could not only truly express the geometrical characteristics of the soil particles but also be suitable for the experimental study on the furrow opener....

Base on Markov model, the quality state of Guanting Reservoir is divided, the initial matrix is formed, the index weight by entropy weight is obtained, and the probability transition matrix of water quality variation trend is constructed. Then this model calculates the degree of absolute and comparative...

This paper provides a set of methodological tools including an assessment of the efficiency of introducing new technologies in vegetable farming, the main parameters of business entities, and a methodology of estimating the criteria, whose aggregation allows to define the strategic priorities of an organization's...

Measuring soil water content, soil water repellency and analysis spatial variation of the sugarcane land by combining classical statistics and geo-statistics, in this article. The results showed that: the means of soil moisture content and soil water repellency were smaller, in the case of long time...

Surface soil moisture is a significant parameter in environmental systems. A new sensor capable of estimating surface soil moisture from reflection data is presented, called near-infrared reflection sensor. Relative reflectance method is used for prediction model development. The present study investigated...

The problem of determining the roll angle of a fast rotating object has been analyzed in the paper. Possibility of creating a fast rotating single-axis orientation system that was able to determine the roll angle for a long time with minimal errors, based on data from various sources, has been considered....

In this paper, we prepared Ni/C, Pd/C and Pd-Ni/C binary alloy nano-catalysts by the impregnation-reduction method. The structures of all catalysts were characterized by XRD and TEM. The electro-catalytic performance of all catalysts on H2O2 reduction were studied by cyclic voltammetry(CV) and linear...

For investigating the effects of gradient energy coefficients on the void-matrix interface thickness during Czochralski silicon single crystal, an established phase field model and the corresponding program code were used to simulate the evolution process of a single void. Based on the given criterion...

To solve the problems of nonlinear and input constraints in the iterative learning control system, using real-coded shuffled frog leaping algorithm to solve optimization problem1 in iterative learning control, .A shuffled frog leaping algorithm(SFLA) based optimal iterative learning control is proposed....

Attitude control system of the rigid satellite is a coupling and uncertain nonlinear system with multi-inputs and multi-outputs. This paper presents a sliding mode controller for the satellite attitude system with limited control input and external disturbances. The design strategy can guarantees that...

To improve the efficiency of the query on the data of resource description framework (RDF), the method of storage and management of the data at home and abroad is studied. According to the characteristic of the data that the number of subjects and objects is large and the number of attributes is small,...

Wireless remote control robot car could play a special role in the hazardous environment operations and search & rescue personnel. A multi-function smart car with Bluetooth remote control is selected as my graduation thesis subject. The design of the system hardware circuit schematic and PCB diagram...

Zn1-xMnxFe2O4(x=0, 0.15, 0.25, 0.35, 0.45, 0.55, 0.75, 0.85) ferrites were synthesized by sol-gel combustion method with citric acid as complexing agent, and mole ratio of metal ions and citric acid is 1:1. All samples were sintered by 550 . The structural and magnetic properties of MnZn ferrites were...

The hot ductility behavior of two kinds of 800MPa grade Ti/Nb-added weathering steel has been investigated by using Gleeble3500 thermo-mechanical simulator. The tensile strength (TS) and reduction in area (RA) were acquired to draw hot ductility curve and hot strength curve. SEM fractographs and microstructures...

Cytotoxic activity of Artesunate(ART) was determined by MTT assay at various concentrations ranging from 0 to 100 mol/L on Hela cells. The apoptosis effect of Hela cells treated with ART was observed by a phase contrast microscope. The Apoptosis and its mechanism induced by ART were also studied by real-time...

It has great significance for the quality of aviation image in military image processing system. But it cannot avoid image degradation encountered in the process acquired. In order to get the high-quality aviation image, in this paper, we firstly analyze the main factors of image degradation, and then...

Method of feature selection was used in this paper to select dirving factors before models of land use change carried out simulation.Two different scenarios were set inthe study area- main districts of Chongqing Scenario 1) carried out land use simulation involed all the factors 2)carried out land use...

In this paper, a diffractive optical element(DOE) is designed as a spectrum splitting and concentrating element which is used in lateral multi-junction solar cells. The performance of the DOE by simulation indicates that optical efficiency over 80% can be achieved based on this design. The relationship...

In this paper, the blocked waterborne polyurethane crosslinker were prepared by polyaddition reaction with isophorone diisocyanate (IPDI), polypropylene glycol-2000 (PPG MW2000) and dimethylolpropionic acid (DMPA) as internal emulsifier, sodium bisulfite (NaHSO3) as blocked agent in presence of dibutyltin...

The bridge prestressed concrete continuous rigid frame bridge is a kind of good integrity, reasonable force, construction technology is mature, moderate cost, spanning ability and driving comfort, etc.And in the actual project got a lot of applications while further development prospects are very bright....

With the aim of drawing the knowledge map and understanding the research hotspot on intelligent system, the articles published from 2010 to 2015 have been searched with the keyword “intelligent system” based on the Web of Science database. The knowledge map of intelligent system was drawn by utilizing...

By means of Lyapunov function and the finite-time theory, the problems of finite-time boundedness and passive control for a kind of nonlinear system described by T-S fuzzy model are studied. The sufficient conditions, which maintain finite-time boundedness and satisfy the passive control performance...

According to the characteristics of the concrete fracture process zone, a damage and fracture model for concrete, which combines damage mechanics and fracture mechanics is proposed. This model takes the initial fracture damage threshold as the incipient cracking criterion, and takes the unstable fracture...

A simultaneous determination method for four kinds of Fusarium toxins (zearalenone, deoxynivalenol, T-2 and HT-2 toxins) in flour was established using high performance liquid chromatography-tendem mass spectrometry (LC-MS/MS). Samples were cleaned up with MycoSep®226 multifunction purifying columns...

Digitalization of low-pass filter produced from first-order inertia link is carried out firstly in this paper. Then an improved algorithm is proposed to achieve better low-pass characteristics by weighted smoothing the first n-part of the input and output data and using the smoothed data instead of n-1...

In order to enhance the degradation ability of ozonation process, catalyst used in catalytic ozonation was studied in this paper. NaY zeolite was selected as the carrier of catalyst. Catalysts prepared with different conditions were added in reaction solution to find the catalytic ability of catalyst...

In order to measure the success of smart growth, we establish a scientific comprehensive evaluation model and take Miami as example. Firstly, We build the evaluating index system. The first layer includes eight indexes such as people density, urban floor area ratio, land productivity and so on. The second...

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

The term Wireless Underground Sensor Networks (WUSNs) describes a collection of nodes operating beneath the surface of the earth that are expected to provide current observation capabilities in hostile subversive and submerged environments. Accurate monitoring in non-conventional media, such as subterranean...

Power Factor Correction (PFC) technology is a key means to improve system energy efficiency. This paper conducts a systematic review and analysis of Boost-type active power factor correction technology. Firstly, it sorts out the topological structure and working principle of Boost-type PFC, and expounds...

Various types of low-level indexes and uncertainty of evaluation information due to quantitative index and qualitative index exist in converter transformer condition evaluation. To solve this problem, a novel converter transformer condition evaluation approach based on the belief rule base inference...

Nowadays, the Direct-Sequence Spread Spectrum (DSSS) technology has been widely used. It's urgent to research blind detection algorithms on DSSS signal. In this paper, a new method is proposed. It based on a combination of wavelet noise reduction and Estimation-based Time-domain Sliding Correlating Accumulation,...

To estimate the Melt Index(MI) value accurately and quickly in the quality control process of polypropylene (PP), the paper proposed a forecast model of MI (PHKT-GRBFNN-CRBFNN-HMM) integrating the technologies of data mining, model constructing and two error compensation based on the data. Firstly applied...

This paper proposes a new fault diagnosis strategy for analog circuit after analyzing diagnosis method based on the BP neural networks and AI-ESTATE standard. At present, The artificial intelligence algorithms such as SVM and BP has been widely adopted in analog circuit fault diagnosis, but it is not...

Pavement structure directly affects the performance of the road, and the high altitude and low temperature of the Qinghai Tibet Plateau has a great influence on the pavement structure. Based on the investigation of Qinghai Tibet highway, Sichuan Tibet highway line five, summarizes the existing pavement...

The peridynamic is a kind of unique theory which can deal with continuous models, defect of crack and particles in a single framework. It does this by formulating problems in terms of integro-differential equation rather than partial differential equations. This theory can be used to investigate the...

Determining the vertical wheel-rail force by measuring rail displacement is approved to be feasible in this paper. Wheel-rail force data is collected following the common way firstly, i.e. strain gauge is pasted on the rail to measure the strain. During the test, different vehicle running speeds through...

This article will conduct the research to this question, in order to portray the decision-makers dilemma in the decision-making process under the uncertain condition, this paper defines the following concept: policy-makers plus regret degree, policy-makers negative regret degree and policy-makers weighted...

The experimental material is ‘Red Globe’ grape that is taking shelter from rain. Use different concentrations of SUNRED on the grapes, when the color of grape is turning. Then study the effect of color and quality of fruit. The results show that, SUNRED1000 times could promote the grape coloring. The...

This study adapts a nonlinear dynamic predictive model for quadrotor UAV trajectory tracking; which involves translational and rotational motions, the gravitational contribution and gyroscopic impact. In this implementation, Initially construct the mathematical model of UAV dynamics, then derive the...

According to water scarcity, using the system dynamics (SD) theory as a guide, this report makes some quantitative and qualitative analyses on the trend of water resources carrying capacity (WRCC) in Beijing. According to several corresponding reasons, counter-measures are proposed to diminish the degree...

In order to improve the concentration and pumping volume of gas control drilling hole in the cross-cut uncovering area, reduce the pre-pumping time of outburst coal seam, principle of broken coal based on high pressure water jet, the mechanism of high pressure water jet punching to relieve pressure and...

Because of the circumstances of diffused illumination and light assimilation, underwater photographs typically encountered a modest difference in color saturation due to color immersion. When underwater photos with similar shade colors are captured under different lighting situations, restoring and enhancing...

According to the movement relationships and geometric relationships of cylindrical roller bearing parts, the mathematical model of the radial runout of bearing outer ring is established. The principle of algorithm for the radial runout of bearing outer ring is analyzed. Numerical simulation of the motion...

Transportation management is essential for the region planning and governance. Transport planning plays an important role in designing the city plan. The strategy of transportation of sustainability is also indispensable for the construction of eco-cities. This paper mainly focuses on evaluation of the...

Metamorphci phyllite is fragile, the gradation show large variation. Different pressure levels are selected at first to make sure the stable gradation. The test results show that 600 kPa pressure level meets the requirement and metamorphic under this level is choose for further compaction analysis. Compaction...

Magnesium alloys were welded by friction welding. The mechanical properties of the joint were investigated; the effects of welding parameters on flanging amount, wear amount and tensile shear load of the joints were discussed. The results show that the joint strength increases with the increase of friction...

In this paper, a type of shield tail sealing grease, composed of basic oil, thickening agent, lubricating grease thickener, lubricating grease, biodegradable fiber and inorganic fillers, was prepared by means of a physical mixing process. In addition, various properties such as density, cone penetration,...

The Carboniferous carbonate rocks at eastern margin of the Pre-Caspian Basin originally depositing at the passive continental margin of Eastern European craton are closely related to accumulation of lithologic reservoirs. Three kinds of lithologic reservoirs, i.e. sedimentary-related, diagenetic-related...

When rock-like materials are tested under triaxial compression[1] ,two kinds of failure may happen,that is,ductile and brittle failures.The essential reason for rock failure is the relative displacement among mineral particles making up rock.Generally, rock failure can be either tensile or shear,which...

Since the outbreak of pandemics, acute hemorrhagic conjunctivitis (AHC) has caused extensive attention in the field of public health. The purpose of this study was to quantitatively evaluate the influences of super spreader, passenger source and social relation structure on the AHC transmission in terminal....

Blade shape plays a critical role in determining the energy conversion efficiency of wind turbines. This paper investigates the relationship between blade geometry and wind energy conversion, analysing how parameters such as chord length, twist angle, and camber affect aerodynamic performance. With global...

Now, the highway toll system still uses a single license plate recognition, this method has a problem of inaccurate identification. For this kind of situation, this paper put forward to increase the appearance of the vehicle feature information and can improve the accuracy of recognition. In this paper,...

Proteins possible effects on roots have received little attention. Here, we investigated how externally supplied protein influences root formation of Cinnamomum camphora cuttings. Cultivation matrix was composed of vermiculite, perlite and river sand based on the proportion 2 2 3. Softwood cuttings were...

The original data about the operation status of IT infrastructure is stored in the log. It can not only reflect the operation status of the whole system but also provide the basis for the management and optimization of IT operation and security analysis. This paper has summarized the infrastructure of...

CCD (charge coupled device) is one of the mainstream of image sensors, it plays a more and more important role in the real-time image processing and recognition. For airborne CCD image recognition problem, this paper proposes an enhanced method of wavelet transform. It can real-time processing of airborne...

A kind of DFT process used for signal operation in real time is proposed. The complicated environment for modern electronic counter and the appearance of new radar systems put forward a new lesson to sub-collect the signal and track the signal, especially in real time. With the background of high speed,...

Subjective well-being (SWB) is now attracting more and more attention from policy makers. Traditional way of measuring SWB by self-reporting based on questionnaire has the limitation of small sample size and low survey frequency. With the rapid spread and use of social media, the online posts of users...

Landslide monitoring is a fundamental work for landslide hazard prediction and landslide treatment. The quality monitoring work will affect the correctness of the decision for disaster prevention. Base on the development of landslide monitoring technology in Zhejiang Province, the paper introduces the...

Automobile assembly workshop has complex process; it usually requires the use of special spreader. Due to highly intensive work, the security requirements of the job are always in high demand, so safety and reliability of the spreader is essential. In this paper, finite element analysis and NDT were...

By researching the development process and the status quo in Bei 301 block, this paper sets the three-dimensional geological model, fits the actual production data through using numerical simulation software, and determines the distributions of remaining oils ultimately. On this basis, this article designs...

One of the important equipments in substation switchgear and under high load condition, often appear contact temperature is too high, reliable power supply directly affects the user, or even serious accidents. Based on the comprehensive analysis of the current commonly used temperature measurement technology,...

With the development of our social economy and the advancement of urbanization, China's urban traffic demand continues to grow rapidly, more and more cities are affected by the traffic jam. In order to solve the urban traffic problem fundamentally, many cities are embarking on the construction of rail...

The article is devoted to theoretical studies of defecate distribution over the soil surface by a centrifugal working tool. Defecate has physical and mechanical properties which are similar to those of mineral fertilizers. Therefore, for its distribution, fertilizer spreaders with centrifugal working...

The wind board control system is designed, taking MSP430F149 as the core control chip and STC89C52 as the auxiliary control chip. This system adopts 12864LCD as the display, selects the working mode and sets the wind board position angle by the button. And the system detect the change of wind board's...

In recent years, the phenomenon of "haze, air pollution and traffic jam" has gradually deteriorated, which seriously affects the health and safety of residents and the efficiency of logistics operation. Data show that: 2016, China's automobile exhaust emissions of 120 million tons, carbon emissions of...