Advances in Engineering Research

With the rapid development of modern information technology, more and more people believe that the protection of hardware equipment must be enhanced in order to improve the security capabilities of computer information systems better. Trusted computing improve the trustworthiness of system through the...

As it can provide high throughput data access, and easy to deploy on a cheap machine ,Distributed File System HDFS is used widely.All HDFS file access requests are required by the metadata server node .so the single metadata server nodes often become the bottleneck of the whole system problem, this paper...

For heart right atrium electrophysiology simulation computation huge, time-consuming problem, a method based on high-performance graphics processing unit (GPU) to achieve parallel computing and optimization. First, consider the differences between right atrial heart cell center and the edge of the constructed...

Steel bar corrosion is a major cause of the durability failure of concrete structures. Researches of corrosion were basically done in steel bars without stress by domestic and foreign scholars. Therefore, it is significant to study the relationship between rebar strain and corrosion rate by testing....

parallelizable processing mechanism and multi-core architecture characteristics of image processing algorithm are studied. On the basis, image processing algorithm parallel design paradigm based on multi-core computing environment with five design procedures of analysis, modeling, mapping, debugging...

The deformation of blades effected by gust would endanger the safety of wind turbine. Based on blades elastic deformation theory ,We established a model of blades rotation transient response ,studied the characteristics of blades transient response effected by gust, and confirmed the procedure of blades...

The brake amount of traditional longitudinal differential protection of motor is a fixed value, so that for special extremes the relay is prone to maloperation or refuse to move. According to the motor fault characteristics, I take out a motor longitudinal differential protection principle which is proposed...

The sedimentary facies the late Yanshanian succession of eastern Yihezhuang salient in Jiyang depression, which was a pre-Cenezoic inland rift basin, were studied in order to improve the success rate of locating hydrocarbon reservoirs. Based on previous study, the sedimentary facies got identified in...

As the rapid development of China's economy construction and scientific technology, the grid carrying load becomes higher and higher, and how to realize correct grid load forecasting technique becomes a current new smart grid studying hot spot. Without an exact calculation for the load, it can cause...

500kV series transformer is the key equipment in Suzhou 500kV unified power flow controller(UPFC) project, which undertakes the regulation of voltage and power between the converter and the line. Due to the special connection mode and operating condition, 500kV series transformers differ from conventional...

The effect of drying temperature on properties of mint was investigated. A constant rate and a falling period were found during drying process of mint. The maximum chlorophll retention and the minimum value of a* and E was found to be dried at 55 .The Modified Page model was the best to describing the...

Micro Wire Electrical Discharge Machining (Micro-WEDM) surface consists of many approximate spherical peaks and craters with interphase distribution. According to the micro- WEDM mechanism, the surface micro-topography is simulated by using ANSYS, and the mathematical models about single crater and multi-crater...

Magnetic micro-fibrillated cellulose(MFC) aerogel used as heavy metal ions absorbent was researched in the paper. It was expressed great separation capacity. The absorbent had little effect on contact time in 20-120min range. But it was dependent on ion initial concentration. 4 kinds of ions removal...

At present, the performance of the satellite navigation system is based on the application requirements of ground augmentation system, the integrity of the local system, the second generation BD satellite based system of the type of precision into the near integrity algorithm and simulation analysis....

The article provides a detailed review of scientific publications devoted to the study of the forests of the North Caucasus starting with the relict tertiary flora replaced by the alpine vegetation of the ice age (Kuznetsov N.I., Medvedev Ya.S.), followed by the steppe and highland-siccocolous formations...

This paper is based on the construction, installation and commissioning of the first offshore booster station - a 220KV booster station in the Asia Pacific region, and mainly expounds the technology of integrity analysis of offshore booster station model and integrated construction. This paper explains...

The experimental measurement method for how to eliminate side effects of Holzer component has been mainly studied in this paper, Holzer sensor has been adopted to measure the relationship between exciting current and output Holzer voltage within electrified solenoid and the result that Holzer electric...

With the development of digital design and manufacturing technology of aircraf , The large-scale overall structural element amount used unceasing increase, as well as the civil aircraft efficiency and the secure request daily enhancement, also proposed to the product manufacture precision a higher request,...

Reed is common plant in wetland and its ecological function in wetland and strong pollutant degradation ability has been paid more and more attention. So far, reed cultivation has become an important part of ecological restoration in wetland. Substantial studies have been made concerning influence factors...

This paper is to synchronize the AVI media file on the video player. It is that audio playback clock is used as synchronous clock. It is using FFmpeg to decode AVI video files to get audio and video data, and calculate the audio playback clock to audio playback clock as a reference clock to load video...

The best process was determined through determination in different temperature of polysaccharide completely dissolved time, the precipitation coefficient after standing some of the different time and the filtering effect of different filter medium. The Coriolan oral liquid was trial produce by the best...

This paper proposes a novel direct and completely nonlinear alignment method for the strapdown inertial navigation system (SINS). The method uses the sparse-grid quadrature Kalman filter based on the Kronrod–Patterson rule (SG-KP-QKF) and nonlinear models. The system equations and the measurement equations...

Carbon nanotubes reinforced Al2O3/TiC composites were prepared by hot-pressed sintering in vacuum. The preparation technology and mechanical properties of Al2O3/TiC/CNTs composites were investigated. The results show that the phases of the composites are Al2O3, TiC and carbon nanotubes. The mechanical...

Based on the bearing frictional theory and thermal theory, establishing a three-dimensional finite element model of the rotating liner hanger bearing, using finite element software ANSYS-Workbench to simulate the temperature field distribution. Discussing the influence of the slurry temperature and the...

Nowadays, the high speed train develops very fast and it has irresplaceable traffic advantages. However, the collison damage of the high speed train body[1], which mainly includes the towing beam ,boundary beam and sleeper beam, is a major obstacle to the development of the high speed train, so the reserach...

In order to predict the short-term load of the power system, we used regression analysis and time series analysis. Firstly, We plotted the annual load curve of a region and analysed the relationship between load and each meteorological factor. Secondly, the regression model is established and the regression...

This paper presents the design and simulation of a two-stage CMOS operational amplifier tailored for bandgap reference applications. The proposed architecture comprises a differential input stage, a high-gain amplification stage, and a Miller compensation network to ensure high DC gain, low power dissipation,...

The signcryption tag-KEM/DEM construction is naturally extended to the ring signcryption in this paper. The security model of hybrid ring signcryption which is constructed by ring signcryption tag-KEM/DEM is given in this paper. A hybrid ring signcryption from lattice theory is proposed which satisfies...

The effect of seasonal temperature fluctuation, organic loading rate shocking and aeration intensity change on the performance of large-scale vegetation-activated sludge process (V-ASP) was evaluated, and effective system regulation measures were proposed. Vegetation characteristics, including photosynthetically...

After large-scale activity, the outburst passenger flow probably causes serious impact on stations surrounding the activity venue, at this time, stations should take corresponding organization measures to guarantee efficient and smooth running. This paper put forward the organization process of subway...

In this paper, Optimization problem is introduced. Some computer tool-kits used to solve optimization problems are outlined with their respective strength and weakness. A state of the art optimization programming language-IBM ILOG OPL is presented. This high level OPL facilitates modeling and solving...

This study proposes a solution to the energy supply problem of high-end innovative products based on wireless charging technology. This technology has significant research value due to its significant convenience and driving role in the development of national science and technology. This article focuses...

To explore the influence of sea level rise on sediment deposition in the Yangtze Estuary Deep-water Navigation Channel, this article has simulated the change of flow velocity in North Passage in different situations of sea level rise with MIKE21 FM and calculated the threshold motion velocity of sediment...

Chongce ice core, drilled from West Kunlun Mountain, 6350 meters high, provides a unique opportunity to obtain the past atmospheric environmental information. In this paper, the composition and concentration of ions, ions sources in Chongce ice core were analyzed, and the ions variation during last century...

This paper mainly introduces the design ideas and realization process of the game.The design draw the background of all the objects at the begin of the game.In the thread when the main program was running, the frame refresh will be at certain frequency with double buffering technology to screen redraw...

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...