Advances in Engineering Research

Tied-arch bridges have being widely used in railway for their beautiful shape and rigidity. Current analysis software Midas civil is applied in the overall analysis of many bridges, including the bridge in the article. However, there is huge amount of concrete in the arch foot of the arch bridge, which...

For solving the existing problems of assembly quality of B-pillar, a robust design approach was utilized to optimize locator layout of Reinf Pillar and Side Beam Threshold so that the assembly deviation of B-Pillar was minimized. Taguchi orthogonal experiment was carried out to perform the idea by taking...

How to speed up the construction of modern agriculture in China, to further enhance the income of farmers, to improve the ecological environment in rural areas, they have become the fundamental problems in the process of building a new countryside. Today, the low-carbon economy provides a new path for...

The paper describes an approach to user motion in mobile multimedia based primarily on features. The increasing number of mobile display is based on HTML5 web standard. The openness of this standard makes it easier to extract some additional features, such as animation, video, sound and other components....

Flow field downstream of the pier were divided two parts, the main channel area, and the pier area. On the basis of the main flow stress, the formula of main flow velocity variation along the distance was deduced. Combined with the formula of bridge pier scour depth in the handbook, the downstream local...

Mortar is a mixture of cement, fine aggregate and water which is generally used in non-structural work. In this research, in addition to using normal mortar to determine the compressive strength value that occurred, an innovation was made to the mortar mixture by adding fly ash and rice husk ash with...

This study presents the design and performance analysis of a producer gas cleaning system for a downdraft gasifier used to process Segregated Dry Municipal Solid Waste (SDMSW) and biomass. The cleaning system is critical to remove impurities such as particulate matter, tars, and other pollutants from...

Financial firms play a crucial role in the economic development, and commercial banks are important parts in the financial system. Commercial banks' competitiveness is reflected on their business performance. Therefore, measuring the performance of commercial banks has become an urgent task. In this...

To ensure wheel body of the hoisting sheave strength and stability condition. For the purpose of wheel body lightweighting. There are two schemes to reduce body weight.Reduce the spokes at the same time increase the ring stiffened plate, and reduce the spokes at the same time change the spokes width...

Cardiovascular disease is one of the main diseases threatening human healthy. Currently, the main method to detect cardiac function is electrocardiogram (ECG). However, with the development of sensors and signal detection technology, many scholars have accepted to use ballistocardiogram (BCG) signal...

The diffusion behavior mechanical performance activation and biological property of gel-embedded nitrobacteria carrier LQ-1 were measured, and its application in the treatment of urban sewage was studied by pilot experiment. The results show that the interpenetrating holing-through structure (about 5...

Under the background of global change, the internal relationship between forests' age and forests' carbon cycling is very important to study the position and function of forests in the global carbon cycle.Thus, the study employed field observations to inversely estimate the parameter of maximum light-use...

This paper introduces a remote monitoring system through GPRS in view of that some greenhouses are remote and scattered. The system uses ARM11 as the center of data processing, realizes the remote monitoring of environmental factors in the greenhouse. Data processing center and remote monitor terminal...

The modal analysis and spectral analysis of nuclear pipes are carried out by FEM software ANSYS. Taking the piping system of Ningde Nuclear Plant as an example, the calculation results by using software ANSYS are compared with those by using software SYSPIPE.

Power transformer is the core equipment in power system. Power transformer can be regarded as the structure of several nonlinear dynamic systems. In the fault diagnosis of transformer, there are still many shortcomings in the traditional experimental analysis methods. Artificial neural network technology,...

In this paper, -isotactic polypropylene ( -iPP) samples were prepared by adding two nucleating agents with different particle sizes (NT-C and ST-C). The melting, crystallization and mechanical properties of -iPP samples were investigated by means of differential scanning calorimetry (DSC) and mechanical...

With the continuous growth of People's Republic of China's economy, the power industry is also developing rapidly, various voltage level substations have been put into operation, electricity is closely related to people's daily life, at the same time, more and more attention has been paid to the electromagnetic...

The static bill of material data and dynamic bill of process data need to be integrated during manufacturing process of complex product, in order to wholly control the workpiece of workshop and systematically consider material requirements planning and enterprise resource planning. This paper constructed...

Mirco-fibrillated cellulose (MFC) aerogel was reinforced by chitosan. The reinforced MFC aerogel was used as heavy metal ions absorbent. The results showed that the aerogel had good absorption capacity of over 200mg/g for all 4 kinds of heavy metal ions, Cd2+,Zn2+,Pb2+ and Cr6+ in the initial concentration...

The vibration of belt in the process of automobile synchronous belt transmission directly influence transmission smoothness, and produce noise and affect the service life of the belt. In this paper, through the establishment of mathematical model of belt transverse vibration in the process of synchronous...

In this study, we have fabricated porous WO3 beads by microfluidic device. The polystyrene(PS) nanosphere arrays were filled by WO3 to prepare porous beads by using a template method. At the same time, in this paper, the raw materials used in this experiment is tungsten oxide which has the photoelectrochromic...

Jack-up platform occupies an important position in marine oil exploitation due to its advantages. A finite element model of a Jack-up was constructed and analyzed. And Different coupling methods were used to simulate the links between the boat hull and legs. The two kinds of coupling methods are the...

Point cloud models are widely used in industry. It is also faced with increasingly serious copyright protection issues. A new watermarking algorithm of 3D point cloud model using angle quantization index modulation is proposed. At first, a point cloud model is segmented into many patches according to...

Heavy-duty gantry machine plays an important role in the energy, shipbuilding, aerospace, transportation and military industry and other pillar industries, and is a manifestation of national equipment manufacturing capacity. Cross-rail is one of the key structural components, and its natural frequency...

When we move the Hall component in a uniform gradient magnetic field under the constant current, the Hall electromotive force it outputs depends only on the amount of its displacement in the magnetic field. According to this characteristic, this paper analyses the basic principles, the selection of uniform...

A study of flora in Argunskiy Biological Reserve in Chechen Republic, with over 490 species of vascular plants. Asteraceae family was investigated in particular detail, including 60 species and 38 genera. Centaurea is presented in 7 species, Artemisia, Inula - 5 species each; 3 species each of Cirsium...

The perfect monitoring and alarming system in the urban utility tunnel is an important guarantee for the normal operation of the integrated pipe gallery. This paper first introduces the general situation of the monitoring and alarm systems in the monitoring and alarm system of the urban utility tunnel,...

In the area of numerical simulation of building fires, the computational domain is directly related to the accuracy of the simulation results. This article would be focused on small compartment fires with a single vent opening where heat release rate lied into the transitional region, which is a transformation...

The slag from high temperature smelting of copper sludge, electroplating and pickling sludge in different cooling methods were studied for the heavy metal removal and solidification effect. The contents results showed large removal of Cu, Ni, Cd and serious enrichment of Mn, Ba, Be, Pb, As. The leaching...

Referring to relevant data, the Maritime Silk Road is concerned with several countries Asian and African countries. Cooperation and development are the core of this strategy. Combining the history of the Maritime Silk Road, we mainly focus on the international trade, where high trade efficiency is required....

This paper develops an indicator system consisting of three criterion layers and 13 specific indicators. This indicator system can be used for water resources utilizability evaluation during subway construction in water-rich weakly consolidated formation. The weight of each index is determined by using...

The so-called brushless DC motor is a nonlinear, multi-variable and highly coupled system, the general PID control is impossible to achieve the desired control effect, but the fuzzy PID controller can be self-tuning through the fuzzy algorithm PID parameters, effectively compensate for the shortcomings...

Compressive sensing is a novel information theory proposed recently.It broke through the restrictions of the traditional Nyquist sampling theorem on the sampling frequency,which can only use fewer sampling signals to describe the original signals.This article introduces an image fusion algorithm based...

In order to solve the non uniform environment of the target area influencing the variance of DF error, the weighted maximum likelihood estimation (WMLE) algorithm was proposed. In this algorithm, the effect of the target distance was introduced into MLE. we construct the weighted vector to make up for...

How to quickly and correctly identify the second generation ID card code has important practical significance in real life. The algorithms have been presented about the recognition and verification code of ID cards. In order to let computer own the knowledge of code of character image, firstly, transform...

The majority of the distribution network is supplied by unilateral power and has a radial distribution, wind farms connected into grid will inevitably bring a certain extent on static voltage of the distributed grid. Furthermore, the randomness of wind farm output will cause the node voltage fluctuations....

The simulation models were created based on the material properties of the self-prepared Si3N4 insert and HT250 workpiece. Using these models, the simulation results of cutting force, temperature and tool stress were availably obtained in different cutting speed. It was concluded by these results that...

The large eddy simulation method with mixture model is used to describe the inside two-phase flow of the oil - water separator. Then flow analyses of hydrocyclone field with different structures are compared by numerical simulation in the inside flow field of oil - water hydrocyclone. The result shows...

This paper describes a reactive power control strategy based on the unified power quality conditioner (UPQC). The shunt unit is mainly used to compensate the reactive power based on the active and reactive power decoupling control. Because the series inverter is usually in the bypass switch state, the...

Based on the analysis of the static sinking-pile, the pipe-pile with holes technique is put forward, which can alleviate the disadvantage effect of static sinking-pile effect. The model tests have been carried out for it, and the time-space change rule of the environmental effects of the analysis of...

The hydrogen peroxide photometric method for analyzing main constituent titanium in vanadium alloy were investigated in the paper, including the sample digestion method, chromogenic conditions, Lambert-Beer’s law range, matrix interferences, method precision, recovery of standard addition, sample analysis...

At present, the market is filled with the excessive packing of the goods, which not only misleads consumers and damage the interests of the consumers. More importantly, this phenomenon results in the waste of resources and energy and the pollution of environment, which disobeys the development of circular...

For weapon and equipment operation training, we designed an equipment simulation system based on virtual reality technology. By multi-layer model display design, the database links, data display and simulation system design, we realized the equipment simulation system’s equipment operation and tool use,...

Based on actual demand of the bell system, this visual intelligent doorbell system was designed and implemented to be a high reliability, good performance and low cost embedded bell system combined with the embedded technology, image processing technology, image transmission technology, Zigbee technology...

Acoustic noise of air conditioner is one of the main vehicle interior noises. In this paper, the value of the acoustic noise obtained under specific rotational velocities that tested in the experiment has been analyzed and the distribution of the noise with the analysis of the sound field in the HVAC...

With the rapid technological development of surgery robots nowadays, however, there is not scientific assessment system to accurately and objectively study on operation proficiency of surgery robot user. A scientific and precise comprehensive assessment model is established on a scientific assessment...

Using three-dimensional simulation software AVL FIRE establish a direct injection diesel model.Analyzes the effects of water content of emulsified diesel on the combustion progress of diesel engine.The results showed that with the diesel water content increasing, the maximum cylinder pressure generally...

In receiver design, how to choose the loop phase detector and loop filter carrier tracking loop is critical. Due to the Doppler frequency difference uncertainty exists, the carrier phase direct capture a greater degree of difficulty, and the frequency was able to capture most quickly eliminate the Doppler...

The highway transportation in China has undergone development courses from “bottleneck restriction” to “general alleviation” and then to “basic adoption”. And future-oriented appropriate development has been realized in some fields. By the end of 2016, the total distance of highways in China was 4.6963...

Neutron detector performance indexes are the most critical and most direct data which can characterize the detector. In this paper, the mechanism of reaction between SiC and neutrons is introduced; And the experimental platform for neutron detection is set up. Through the experimental study, the neutron...

Decision of commanders requires a great deal military knowledge and situation information. For operational command and control information system, the construction of control and command model requires more detailed knowledge, and the completion of the knowledge base can dispose of the responsibility...

A parallel algorithm for terrain generation based on CUDA architecture is proposed in this paper, which aims to address the problems of high computational load and low efficiency when generating large scale terrains using the Perlin noise superposition method. The Perlin noise superposition method is...

The ecological migration has been one of the hot issues discussed in recent years. This paper will, on the basis of systematic examination of the ecological migration's domestic and international theories, research methods and typical cases, make analysis on the change of the ecological migration's livelihood...

Aircraft platform environment has an important impaction on the aboard equipment performance. In all environment factors, the temperature is an key one because it will affect the working lifespan and operational performance of aircraft. Therefore, it is necessary to study the temperature prediction algorithm...

The effect of molybdenum (Mo) on the microstructure and thermal expansion of heat-resistant ductile iron having ferrite matrix was investigated. Microstructure of heat-resistant ferritic ductile iron consists of ferrite, eutectic carbide at eutectic cell boundaries, precipitated carbide in grain and...

In order to study the effect of fluid on the structural dynamic characteristics, in this paper, a three-dimensional spring element was applied to the dynamic analysis of the fluid. Based on the simplified model of nuclear power structureCAP1400, the upper water tank of concrete containment was analyzed...

To explore how to prevent and control rock burst of mining under the overlying magmatic rock, the 1061 working face in 106 mining area in some mine is taken as engineering background. The mining area is overlaid by three thick hard layers of magmatic rock, which lead to rock burst phenomenon. After the...

This paper research and design a precision adjustable power supply. Thevoltage in the range of 3.3V to 3.4V, the ripple voltage and its peak value of not more than 100mV, power is about 1W, the power supply can be provided to theoptical module, its security is good, and can support the RF device,the...

The article presents data on the distribution, peculiarities of the biological development and population ecology of the pathogens of cattle hypodermosis in the Chechen Republic, extensiveness and intensity of invasion in different climatic zones of the Chechen Republic; dependence of the epizootic situation...

Political turbulence in Syria, Afghanistan and Iraq has caused a drastic increase in Refugee flow to European countries. Also it is bringing a dilemma between protecting refugees and maintaining social stability to the major receiving countries. In this article, we developed a Real-time Response model...

he Oxy-fuel combustion of Yunfu bituminous (YFB) chars was studied by isothermal thermogravimetric experiments at 1273K-1573K. The surface area of coal chars prepared at different stages of Oxy-fuel combustion was determined by BET methods. The pyrolysis temperature leads to a slight increase in the...

A nondestructive and accurate measurement method and related apparatus based on the split-cylinder resonator techniques is descried in this paper. The dielectric constants and loss tangents of the flat substrate materials are suitable to be characterized and then calculated by software programmed according...

The ability of a 2-stage (filtration + UV/Ag-TiO2/O3) ballast water treatment process to control non-indigenous species introduction has been assessed. The removal efficiencies of turbidity and phytoplankton were monitored during the filtration pretreatment phase, and the degradation of phytoplankton...

Mirco-fibrillated cellulose (MFC) aerogel was prepared by adding chitosan as crosslinker. The MFC-chitosan aerogel was used as heavy metal ions absorbent. The results showed that the aerogel had good absorption capacity of over 200mg/g for all 4 kinds of heavy metal ions, Cd2+,Zn2+,Pb2+ and Cr6+ in the...

Currently, hygienic conditions of public tableware and kitchenware have become a hot social concern. This work aimed at solving existing problems in detecting the presence of bacteria, a constant-temperature incubator for the paper strip method was designed and a related temperature-control system was...

In order to study the influence of locator layout on assembly quality, the side-body outer panel of auto B pillar was chosen as the object. Based on response surface methodology (RSM) and 3DCS, the quadratic response surface models were built up. The multi-objective function was optimized to get the...

The accuracy of short-term wind power forecast is important to the operation of power system. Based on the real-time wind power data, a wind power prediction model using Elman neural network is proposed. In order to overcome such disadvantages of Elman neural network as easily falling into local minimum,...

The principle of constant gradient field NMR is same with the logging expert system, the state-of-the -art technology in the world, wherein, gradient design and 2D spectrum inversion algorithm are adopted to quicken the instrument measurement speed while the diffusion coefficients of a fluid can be measured...

Aiming to break through the assumption that ship's transverse (mainly roll) and longitudinal (mainly pitch and heave) motion are not coupled in traditional sea-keeping study, the mathematical model to study coupling coefficients of transverse / longitudinal motion was proposed, and ship's roll, pitch...

This paper presents a class of adaptive ant colony optimization algorithm and proves its convergence properties. The global searching and convergence ability are improved by adaptively changing the pheromone trails evaporation factors and decreasing lower pheromone bound. Markov process analysis is used...

The content of high ash fine slime in raw coal of Shiguai area in Inner Mongolia is high, the load of flotation system of coal preparation plant is heavy and the flotation clean coal ash is difficult to meet the local standard lower than 15.00% thus resulting in a serious waste of slime resources. This...

Based on the solution of Laplace equation in parallel using FVM with unstructured hybrid mesh, the paper studies the calculation of added mass for underwater vehicle. The method is accurate and efficient, which is applicable to both simple shape bodies and complex shape bodies with large curvature and...

The large eddy simulation method is used to simulate the flow field in the hydrocyclone with double conical structure, and the result shows that existence of the secondary swirl has a vital effect on the separation. The tangential velocity in the swirling flow could be regarded as a kind of rankine-like...

This paper mainly discusses the weight factor that influence on cubic NURBS interpolation curve shape. Based on the existing curve and surface interpolation, the thought, the criterion and the concrete steps of the convexity-preserving of the weight factor of cubic NURBS interpolation curve are provided,...

In this paper, a fault tree was built for the issue of fuse misfire, which was significant for personal reliability. Herein, the misfire of a certain fuse was regarded as a fault mode. Therefore, a fault tree for the fuse misfire was successfully built. And the descending method was utilized to solve...

the transformer is one of the most important equipment in power system, the maximum short current rated current is 25~30 times or more when an outlet short circuit occurs,short current will produce great mechanical force which is hundreds of times larger than the normal operation, Under the action of...

This research aims to recognize the feasibility of seaweed farming in Tanjung Harapan Village, Nunukan Selatan District, Nunukan Regency. The population in this study is all seaweed farmers in the Tanjung Harapan Village. The sample was taken by 15% of the existing population of 20 seaweed farmers. Data...

The quick transient response technology of low-voltage differential linear voltage regulators (LDO) has emerged as a research hotspot due to the growing need for dynamic power management in 5G and IoT devices. This article reviews three advanced LDO designs: 1)The dynamic high-impedance charge pump LDO,...

The traditional calibration phase just can meet the he static tower condition at pier, but can not use for the dynamic target. The Fast Correction Phase model is built for Ship-borne Dynamic Platform of tracking and control radar. The anti-cosine method is put forward to calculate phase difference. Then...

6 kinds of chlorinated organic pollutants, such as chlorobenzene, 1, 2- dichlorobenzene, 1, 4 - dichlorobenzene, 1,2,4-trichlorobenzene, 2, 4 - dichlorophenol and pentachlorophenol, were analyzed in 5 main water source for 50 food processing companies in Nanning. The health risk assessment of the chlorinated...

this work used the improved Shan-Doolen model which is based on Shan-Chen model, Combined of non-equilibrium extrapolation boundary and fully developed boundary treatment, and finally established Two-phase flow model. Applying this model, we firstly simulated the separation of two phase immiscible flow...

This paper design a set of remote monitoring and testing equipment aimed at the inclination of the transmission tower, and proposed a methodology of evaluating risk degree to evaluate the risk level of the current state of the tower according to the test data. This paper gives a set of adjustment equipment...

A large number of research results show that the accuracy of the material model largely determines the accuracy of the numerical simulation results. In this paper, the model of Kiewitt8 single-layer reticulated dome with a span of 40m is established by ANSYS/LS-DYNA. The difference between the model...

Three gradations of fine iron tailings are selected to prepared surface mortar for external thermal insulation on outer-walls for replacing natural sand. The working performance and mechanical performance of the surface mortar for external thermal insulation on outer-walls are studied. The results show...

Fresh air temperature supplied by an Environmental Control System (ECS) in a manned spacecraft is generally at 16 ,which is a low air temperature if it is blow to the astronauts directly. In order to improve the thermal comfort, the supplied air temperature should be increased by reducing the amount...

Based on the field hydrology test, topographic map, remote sensing data and cross section survey data, the influence factors and the degree of the muddy tidal flat in Jiangsu coast area are studied, and the stability criterion for determining the stability of the three stages is established. The stability...

The nylon-12 as raw material of balloon catheter and paclitaxel as coating drug, the paclitaxel drug-coating balloon was made by directing coating method. This paper investigated the effect of paclitaxel drug-coating on the balloon physical performances by Hydraulic Pressure Tester, Laser Diameter Gauge,...

According to the problem that the intelligence is not high of the soccer robot, using the mechanical theory as a guide, making some mechanical analyses and calculations on the pressure and transmutation states of chip kick mechanics, and conducting optimal design too, then making the structure of chip...

The paper studies topical problems of land degradation taking place on the territories of irrigation systems. The authors attempt to propose the most promising approach to reveal transformations occurring on agricultural lands of northwestern Caspian Sea region. The work implements geobotanical indicators...

More and more scientific problems are now using GPGPU to solve. However , the existing GPGPU did not give a good solution for the problems such as recursive calls and multiple calls problems. Our proposed NKGPGPU model is a descriptive model that solves the key issues of the NK-GPGPU, including hardware...

Energy is an important strategic resource of a country, and its stable supply is of great importance to the security of a country, especially economic security. Due to diversification, stability is the basic view of ecology. Based on the market concentration index and diversity index in industrial economics...

the separation of elements is achieved by ultra performance liquid chromatography system for Aflatoxins, the use of a closed-loop feedback control system is to produce a stable continuous wave light source, fixed wavelength of 360nm illumination light source onto the separation of elements, resulting...

in this paper, the main control part of the multifunctional intelligent medicine box is composed of AT89S52 microcontroller, ISD1700 voice chip, DS1302 clock chip and so on. The human-computer interaction is achieved by the LCD12864 and independent keyboard, and using the piezoelectric thin film sensors...

Mobile devices such as smartphones, tablet computers are widely used over the past years. In such mobile Internet environment, how to authenticate a mobile user is a crucial problem. However the single factor based authentication methods are not suitable for high security level applications. Based on...

GIS has been introduced to Jining’s air quality automatic monitoring system. The system provides the client with easily available services of high quality. In order to meet the need of big data storage of the monitoring system we designed the distributed cloud storage framework to deploy MongoDB storage...

In a dual-drum shearer, the drum's height is mainly adjusted by a height-adjustment hydraulic system. However, the hydraulic system is prone to failures, since oil is likely to leak induced by the abrasions of key parts. In the present work, based on the analysis of system failures and the requirements...

There are many factors that cause the flutter of the wing of the aircraft, and one of the factors is the wing opening trepanning. In order to explore the changes of the flutter speed of the wing after trepanning, the software simulation method is adopted to analyze the flutter speed .MSC.Patran and MSC.Nastran...

The Overhead Weapon Station(OWS) has a system composed of complex types, and its interactive subsystems make it difficult to establish the optimization model of multidisciplinary collaborative simulation. In this paper, Adams was used to establish OWS mechanical system model and Simulink to the control...

The purpose of this paper is to propose a new intelligence services mode. The authors analyze the advantages of this services mode compared with the traditional ones. Design the structure of whole file and location file involving head information and body information, and take water depth data as an...

Faced with the challenge that resource depletion and environment deterioration, an important energy-saving measure by enhancing electric motor efficiency has been adopted around the world. With the development of measurement uncertainty of electric motor, for conventional motor efficiency evaluation,...