Advances in Engineering Research

the problem of environmental protection is a hot topic in recent years, the sewage treatment is an important aspect of environmental protection.In view of China's current sewage treatment problems, a new MBBR filler for MBBR process can improve the sewage treatment effect.

This paper determined calcium and magnesium in bioleaching solution of uranium ore by optimized EDTA method. This method used acid chrome blue K-naphthol green B mixed indicator after adding reducing agent hydroxylamine hydrochloride, masking agent triethanolamine and masking agent L-cysteine. This method...

Artillery firing recoil movement characteristics concerns artillery firing security and the play of its operational effectiveness, which is the key issue that artillery designers and users focus on. To solve the problems of traditional and modern simulation analysis methods applied to artillery firing...

This paper uses a queuing model of multi-server system to offer optimal airport wheelchair service which minimizes the cost and offers service of high quality. It addresses the performance of airport wheelchair service associated with the waiting time of passengers who need the service. According to...

The study was to estimate the livestock and poultry breeding (LPB) non-point source pollution load in Sichuan province and provide support for control of LPB non-point source pollution. In the study, an improved export coefficient method was proposed to estimate LPB non-point source pollution loads from...

Urbanization needs the sustained and healthy economic and social development as the premise, the coordinated development and healthy development cannot do without the ecological environment. The coordinated development of ecological environment requires scientific and effective control and prevention...

Faced with the deteriorating ecological environment, people began to apply the principles of ecology to urban landscape planning and construction, which make a number of methods of ecological planning and design. Ecological restoration design is one of them. This paper indicates the background and connotation...

Along with the mixed population, people lost their own dialect in the process of popularizing “Putonghua”. In order to protect this kind of traditional culture, more and more researchers have entered into the protection of endangered languages. But some of the current protection work is carried out manually,...

Vehicle seat rattle noise is one of the common issues in automotive. In general, BSR (Buzz Squeak and Rattle) noises are directly linked to the vehicle NVH (Noise Vibration and Harshness) performance. Most importantly, customers perceive BSR as direct indicator of vehicle build quality and durability....

The thermal barrier coatings of NiCrAl•Y2O3 and NiCrAlCo•Y2O3 were fabricated on the inner surface of low carbon steel tubular components via a novel high-energy mechanical alloying method. The microstructure, elemental distribution and phase composition of the prepared coatings were carefully investigated...

Gallium nitride (GaN) has attracted much attention for a long time as a promising material for semiconductor device application in the transistors, visible light-emitting sources and high powder diodes. Many investigations are paid to the synthesis method, the process of crystal growth, structure and...

People who work in highway toll station is suffering serve air pollution, due to where vehicles are crowded. So it is important to study the air pollution in highway toll stations. In this study, two toll stations in Dalian were chosen to measure the CO, PM10, NO2 and total hydrocarbon (THC) inside and...

We studied an impact of the technological processes, used for forming С/Сu composite coated surface of medical implants, on the mechanical characteristics and biocompatibility of resulting coatings. These implants, designed for temporary functioning, were made from X12CrNiTi18-9 stainless steel by ion-beam...

Building a multi-level, multi-functional, highly effective forest compound ecological system is the important measure of developing the limited land resources and revitalizing the valley economy in mountainous areas. It is also a main development direction of mountain forestry. This paper summarizes...

Secondary Surveillance Radar (SSR) is a flight surveillance facility whose function is to monitor and supervise aircraft movement activities in the air. This guide aims to: 1) design a radar that collects aircraft information, 2) create a tool that can be useful for cadets learning at the Makassar Aviation...

An automated power factor correction system can optimize energy efficiency and reduce costs for a single-phase household load of 2200 VA. Voltage-current phase differences can be corrected using automated power factor correction devices, such as capacitors, greatly enhancing power factor proximity to...

This study investigates the impact of grouting measures on the overburden thickness of the Yuxi River Tunnel. Using theoretical analysis, engineering analogy, and numerical simulations, the research determines the minimum safe overburden thickness. Results show corrected thicknesses of 9.6m without grouting...

With the rapid development of the power electronic technology and control technology, the use of the IGBT, IGCT full controlled devices consisting of a voltage source converter (voltage source converter, VSC) in the DC transmission system has been widely used. However, rapid response of power electronic...

In this article, the study assessed ZnSO4-7H2O [Zn], Pb(NO3)2 [Pb], CdCl2-2.5H2O [Cd], and set the S.obliquus as biological indicators to study the toxicity of binary mixtures after 96h by trace analysis methods. The results showed that the relationship of toxicity among these compounds as follows: Cd>...

In this paper, the composition and principle of the existing spread spectrum measurement and control system are analyzed, and the characteristics of the signal Doppler shift and noise are discussed. The general concept and theoretical basis of the spread spectrum signal processing are established.

Through researching the internal organizational structure of Word 2007 document, the significant component documents are extracted, including document.xml, style.xml, header.xml and footer.xml. The compositions structure and the interaction of the common document formats in each XML file are analyzed....

With the development of human science and technology, modern life rhythm speeding up, people's demand for intelligent in improving. Using intelligent machines instead of manpower, reduce human labor burden and improve the work efficiency has been becoming the current hot. Taking STC12C5A60S2 single-chip...

In this paper, the traditional high fuzzing blindness, code coverage is low, low efficiency and other shortcomings of the test case generation process a study by introducing symbolic execution techniques proposed test case generation method based on symbolic execution of the dangerous path, the method...

A brake energy regenerative strategy was introduced in this paper after the analysis of brake torque distribution and maximum battery charge power within the ECE regulation scope. Studying on efficiency of regenerating energy under different driving conditions,the models and simulations of the energy...

Audible noise generated by the corona of HVDC transmission line has become one of the major considerations in the design of high voltage transmission lines. To research audible noise space propagation characteristics duo to HVDC transmission lines is very important for the analysis of the spatial frequency...

The outlook of Dongxiang area in Gansu province has been experiencing rapid changes with the acceleration of urbanization in recent years. A study needs to be conducted on local traditional architectural settlement to figure out how to realize “localization of modern architecture and modernization of...

Seismic refraction has long been adapted for various types site characterization studies. The method has evolved from the classical theory based on Huygens's principle involving straight propagation paths representing spherical wave front heading direction into many novel considerations involving curved-ray-path...

Through a laboratory experiment of improving the silt in Huangdun Lake flood detention area, the reinforcement effect of two different soil conditioners-cement and fly ash on silt of detention area were researched. The study found that soil conditioners can effectively improve the soil compaction and...

According to the FMS actual production scheduling problems, this paper established a Petri nets scheduling model, And based on this model, we proposed a static scheduling algorithm combined with Petri nets reachability graph and A* heuristic graph search algorithm, Then a simulation experiment of the...

Described herein is a programmed equipment complex “Granics” designed to determine the grain composition of loose material particles on the example of estimating geometrical sizes of iron ore lumps. Results of operating algorithm for processing of images of iron ore particles are illustrated. Results...

Large diameter bagged concrete bored pile has entered into the project practical stage as a new technology that guarantee the concrete durability in saline soil area, there is no construction norms, standards and test methods for large diameter bagged concrete bored pile at present. According to the...

The Cu-MoS2/Cu functional gradient materials were prepared by powder metallurgy method. The effects of MoS2 content on the microstructure, phase composition and wear performance were analyzed comprehensively. Solid-solid phase reaction occurred between MoS2 and Cu in the sintering process. The products...

The flower of Musa nana Lour., also named 'XiangJiaohua' in Chinese, is a commonly used herbal drug in traditional Chinese medicine (TCM). Musa nana Lour. flower and bract were usually discarded after banana fruit ripening, which leaded to resource waste and environmental pollution. It can not only protect...

An experiment was carried out in the face milling process of AISI 1045 material to determine the levels of the process parameters that could minimize cutting force (CF) and surface roughness (SR) and also maximize material removal rate (MRR) simultaneously. A Taguchi orthogonal array L9 was selected...

In order to improve the thermal efficiency and fuel economy of automobile engine, make full use of the waste heat of automobile exhaust for energy saving and emission reduction, a flat-plate type of thermoelectric power generation(TEG) device is designed which makes full use of the car exhaust gas waste...

The performance factors of a R290 variable frequency heat pump water heater are experimentally studied. The performance factors including COP, heating time, consumption power , compression ratio, degree of super heat and degree of sub cooling with the frequencies changing from 40Hz to 90Hz are discussed....

Strapdown seeker connect the sensor fixed on the projectile, through a large field of view to ensure the effective of target detection, in order to solve the high frame rate digital image processing and target recognition tracking problem, design a kind of based on FPGA + DSP architecture is applied...

According to the analysis of phase noise and timing jitter in oscillators, a simple method of converting phase noise to timing jitter is presented and calculation examples are given. The result shows that the calculation timing jitter and measured value are very close. Therefore the timing jitter can...

In this paper, the authors consider determination of the modes of heat treatment of gray cast iron parts that have been subjected to diffusion surface alloying. The type of hardening treatment under consideration makes it possible to obtain a layer of high-carbon steel on the surface of the cast iron...

Transforming growth factors TGF is a kind of a superfamily of peptides, which have strong sensitivity to cell proliferation differention and transfer, its function and its structure are very complicated, and it is a cell factor which widely exist in multiple cells. There are more and more attention on...

Nowadays, along with the continuously promoting of economy and society development, the situation of energy becomes more and more grim. Distributed generation serves as a clean and renewable supply of electricity energy, has been an important supplement besides the normal thermal power generation for...

This paper discusses the building design process based on BIM platform, and analyzes the seismic analysis and design method of the structure based on BIM platform; Compared with the conventional structural design method and the design method based on BIM, the advantages of the BIM design method are analyzed,...

The Paleocene reservoir of Dagang Oilfield, which is one of the most important and complex fault-controlled lacustrine reservoirs in China, is located in the north depression of Bohai Basin. With forty years of exploration and development, most large oilfields in East China have generally entered the...

In this paper, we construct a multi-symplectic Hamiltonian form of the Camassa- Holm- equation(CH- ) and use the multi-symplectic Fourier pesudospectral Method(MSFP) for the discretization of the CH- equation. peaked periodic solution with periodic boundary condition is taken to confirm the accuracy...

To raise the capability of heat-sinking of slab laser amplifier, which is the type of conduction cooling, we need to weld crystal and heat sink with micro channel together. Slab laser module with high power and good beam quality is required to reduce welding void ratio and lower thermal distortion. In...

Fire is one of the major disasters that often happen in the cities. It causes serious economic losses and casualties. Smoke is the main cause of death in fire and it is difficult to be simulated in the traditional way of fire drill. A multi-role collaborative fire drill simulation system was developed...

In order to solve the problem that the pollution causes and the degree of the injection well can not be effectively identified, based on the consideration of the sensitivity of the reservoir and the water quality of injected water. The mathematical models of injection well pollution were established....

It is difficult for reservoirs to guarantee their main water supply aims when the water demands are tremendous and the control gats in its water supply channel are inavailable. In this papper three monitor points are set in the start, the middle and the end of the channel of the Jinxiuchuan reservoir....

The development of cloud computing has brought new vitality to the combination of information technology and traditional financial wealth planning industry. Under this circumstance, this paper studies the wisdom wealth cloud service system based on SOA framework by analyzing and designing the system...

This study aims to identify the impact of Corporate Governance mechanism (proxied by independent commissioner, managerial ownership, and institutional ownership) on Company Value (proxied by Tobin’s Q), and how Financial Performance (proxied by Return on Asset, ROA) moderates the relationship. This study...

In the petroleum refining process, distillation columns, operating under high-pressure and high-temperature conditions, are vital components responsible for producing crucial hydrocarbons. Conventional non-destructive tests often necessitate prolonged plant shutdowns, prompting the adoption of gamma...

Population growth and the increasing number of tourists visiting Bali require an increase in clean water. Clean water services have so far been carried out by the Regional Drinking Water Company (RDWC) from infrastructure built by the Government through reservoirs/dams, ponds, long storage, and infrastructure...

The use of social media by modern tourists is increasing, especially in the aspect of information searching and decision-making about tourist destination. The tourist destination area carries on the traveling marketing and the visitor interaction by using the social media to promote the destination and...

In order to adapt to the complex traffic and reduce the delay brought by simple traffic model, an improved adaptive genetic fuzzy control method was put forward for intersection traffic signal control. In order to improve the computational efficiency , the population size should be adjusted and the Gaussian...

Because of lack of aspect-oriented programing technology during the early stage of soft programing, this paper developed a method which combines the aspect-oriented programing technology with formal specification language. Aspect-oriented programing technology separates the different concerns of system.Formal...

This article introduced the technologies of die to package .these mainly including wire bonding(WB),tape-automated bonding(TAB),and flip chip(FC).the most common wire bonding technique is ball bonding. This is the foundation of the others .at the end parts, the paper illustrated the new interconnection...

The aim of this study was to analyze the heat transform models of phase change diving suit on the basis of the steady-heat transform theory, and determined the suitable melting temperature and latent heat of phase change materials impregnated in different suits. An insulation performance test was conducted...

Molten steel temperature in ladle after converter tapping has a strong effect on yield rate of alloy, dosage of deoxidizing agent and production efficiency. A mathematical model taking ladle thermal state into account was established for temperature prediction of molten steel during tapping and it was...

The process of noise data is a significant issue to the application of data. In this paper, we propose a method of processing noisy data based on improvement radial basis function (RBF) neural network to handle noise data. We establish surrogate models for two kinds of standard functions with noise data...

A Frost filtering algorithm of synthetic aperture radar (SAR) images with adaptive windowing and adaptive tuning factor is proposed to resolve the problem that the traditional Frost filtering algorithm cannot balance speckle suppression and edge preservation effectively. The tuning factor and the window...

The emergence of modern high-strength materials leads to the creation of thin-walled structures in various fields of technology. To obtain the necessary information about their behavior under load, it is necessary to analyze all the characteristic features encountered at all stages of their loading -...

Through the analysis of the gas control effect of the mine protected layer, it was shown that the combination of surface drilling and downhole through-layer drilling can solve the problem of pressure relief gas emission of the protected layer and avoid the gas overrun accident in the working face of...

infrared temperature measurement system is designed, Based on C51 microcontroller, TN infrared temperature sensor, voice broadcast module and display module design. In this paper, the circuit diagram of hardware design and the flow chart of software algorithm are described. The results show that the...

Facial expression recognition is widely used in linguistics, medical care, service and so on. . But still there exists the problem of accuracy.. To solve this problem, , this paper presents an extraction method based on the flow characteristics of facial motion unit for the facial expression recognition....

Power system frequency generates an important impact on operation, control and protection of the power system, and it is the important index of weighing power quality, so it is very necessary to measure it accurately. First, this paper uses the linear regression function to fit the signal including harmonic...

Nanoindentation is a powerful depth-sensing technique/approach for evaluating the mechanical properties of materials at small scales. In the present work nanoindentation approach was used to determine the elasto-plastic properties of Haynes 242, a material widely used in aerospace applications. The experimental...

With the pursuit of better kitchen environments, the problems of air pollution and thermal discomfort in residential kitchens are receiving more and more attention. In order to create healthy and comfortable residential kitchens, in this article, the current status of air quality and thermal environment...

This study focuses on the impacts of flash floods on transportation lines, fully considers the correlation between the natural environmental system and the system of the railroad line itself on the impacts of line floods, and evaluates the flood riskiness of the Lanzhou-Xinjiang Railway in the diffuse...

In the era of globalization, science, including art, occupies the same role, namely being able to penetrate synergies with various other sciences. In this case art relates to the natural environment, agriculture and plantations as well as tourism. In the era of the Ministry of Tourism and Creative Economy,...

The aim of this research was to develop a proper student activity sheet to improve students’ creative thinking skill on the stoichiometric material. The properness of worksheet was assessed based on validity, practicality, and effectiveness. The development of worksheet used Research and Development...

The serial data acquisition is based on MATLAB. It can achieve real-time communication between the computer and the microcontroller. And we analyzed data in real time through MATLAB library functions. Finally, we used visual graphics window to display the results of the data analysis. This article described...

In this paper, aimed at reducing deviation of the output characteristic between DFIG model and operating wind turbine generator. A method using measured data for modifying the model of DFIG is provided. Firstly, the data fitting method is used to get the mathematical model of the operating turbine. Secondly,...

An exhaustive study should be carried on Crumb Rubber Concrete deterioration caused by sulphate attack in this paper. the crumbed tire rubber powder were used to replace fine aggregates of concrete, whose grain size is 0.28mm. The replacement levels were 5%, 10%, 15% and 20 % by volume of the fine aggregates....

China is one of the world's largest energy consuming countries, energy performance evaluation is one of the issues of concern. This paper analyzes Chinese energy efficiency evaluation in the background of low-carbon including the review of the impact of energy efficiency on economic growth and the improvement...

Application of 2003-2013 in Malone disease data of potato late blight, relationship to the incidence of late blight in Malone area and the local meteorological conditions were cluster analysis; Select closely associated with the potato late blight and plant pathology has obvious significance for the...

The dielectric properties of coplanar propagation waveguides (CPW) designed and fabricated on high resistivity silicon substrates are investigated. These CPWs exhibited transmission losses around 0.4 dB/mm at 50 GHz. In particular, temperature-dependent measurements show very low deviations. The complex...

Wind energy resources are rich in China. At the end of 2012, China’s wind power installed capacity has reached 75.324 GW, at the top list in the world. However in China, high-speed development of wind power industry has brought great risks. In this paper, after decomposition of identified four aspects...

It is still unclear that whether intercropping system (IS) could improve the crop biomass and yield in karst soil. A field experiment was conducted to analyze the effects of IS on maize/soybean biomass, root morphology and yield. The results showed that the maize aboveground biomass, root biomass, and...

With the development of information and automation system related to smart city and new energy, the municipal system and power system produce a large number of heterogeneous data every day, including structured data, semi-structured data and unstructured data. These data are often stored in different...

In this paper we deal with two problems, whose common basis is to find the location of a service center for potential customers, but with different criterion functions, determining what we consider in these tasks as optimal. While maximizing the coverage of an area by supermarkets, we choose a new supermarket...

Composites made from phenolic resin are filled with natural graphite powders and carbon fibers were prepared through hot compression molding. Effects of carbon fiber content on the mechanical and tribological properties were investigated. The results indicated that the impact strength increased, friction...

Architectural accidents caused by differential settlement of foundation occured regularly in countries. In order to better understand the influence law on upper frame structure caused by differential settlement of foundation and reduce the occurrence and damage of accident in frame structure, this paper...

A retaining structure induces a specific spatial effect because of differences in its stiffness at different locations. When a partition wall is placed inside a retaining structure, it can significantly influence the development of the deformation of the retaining structure and the adjacent soil. In...

Active idle nodes in large scale compute systems waste energy because they are not always fully loaded with applications. Noticeably, most modern nodesare equipped with multiple level dynamic sleep mechanisms. By scheduling the sleep states of such idle nodes, a new approach to reasonable energy conservation...

The use of electrical devices has been increased tremendously around the world. Portable nickel-cadmium (Ni-Cd) batteries have been used in electronic products for many decades and have resulted in the generation of huge amounts of waste batteries. The battery disposal in municipal solid waste has become...

This study addresses the challenge of enhancing conventional PID control algorithms to cope wit h the complexities of modern industrial systems, characterized by significant interference and errors. Despite its long history and widespread use, PID control has limitations in such contexts. The primary...

Spinel-type metal oxides, magnesium-manganese- titanium oxide (Mg1.5Ti1.25O4), was prepared by a solid state reaction crystallization method. The Li+ extraction/insertion with this material were investigated by X-ray and Kd measurement. The results showed that the Li+ extraction/insertion be progressed...

This article studies the extent of "Supply/Demand Matching" of the taxi resource allocation under the "internet plus" era.We set up indices, analyze supply and demand. In order to analyze the extent of "Supply/Demand Matching", with referencing the demand-supply model of micro-economics, this article...

When the spacecraft is moving at high speed, the signal obtained by the control station always exists Doppler shift, which is reflected in the DQPSK signal. In order to make the digital signal demodulate the correct information, this paper analyzes the influence of Doppler on demodulation, and studies...

For low SNR actual spread spectrum telemetry applications, large Doppler shift characteristics studied in low SNR, FFT-based fast acquisition of pseudo-code methods, theoretical analysis and simulation results show that the method can significantly reduce acquisition time and improve acquisition performance.

Due to the limit of the static strength theory design used in tracked vehicle, it can’t reflect the dynamic loads suffered by the main part, so it is difficult to analyze the reliability and remained lifetime prediction, in some degree it affect the performance. In this paper, we apply the collaborative...

This paper sets up the communication network model to explore social information network's evolution. The communication network model consists of topology structure, communication capacity analysis and topology prediction. Nodes are composed of five kinds of media. Links indicate that there is information...

With the rapid development of the network scale and its applications, network security threats continue to increase, a single network security protection technology could not meet the requirement. Network security situation awareness can dynamically reflect the overall network security and predict network...

Design level C30 ,Water cement ratio 0.5, Sand rate 36%, Glass powder content 15%, Glass particle size by milling 35min, Waste glass powder mixed with two kinds of color, brown and green. Plus a baseline group of three groups and each group of six, a total of eighteen. Strain gauge affixed to the sides...

The tin oxide ceramics electrode were prepared by the traditional solid phase sintering method. Influence of different ZnO doping amount on the microstructure and electroconductibility of the ceramics by SEM and XRD and other analytical instrument and the relationship between composition, performance...

Venturi scrubber is usually used to purify biomass gas. In order to improve efficiency of biomass gas purification of venturi scrubber, a test apparatus of the square section venturi scrubber was established to purify biomass gas. On the basis of analysis of the surge flow and the model selection of...

This article is devoted to one of the world’s major nutritional problems, which is associated with a lack of protein and its imbalance in the diet of people. Nowadays this problem is particularly associated with the reduction in the consumption of animal products in our country. The main focus in solving...

Amplitude of digital signal attenuates seriously with the increase of probing depth, transmission rate and random noise, because channel impedance parameters of deep-sea abandoned profiler measuring instrument is time-varying in the process of transmission and it will seriously affect the stability of...

The vortex and backflow phenomenon caused by many unreasonable designs in the indoor air environment make the velocity, pressure and temperature field distributed unevenly. These results bring out the indoor volatile pollutants local concentration is high. With numerical simulation analysis to pollutant...

The testing stage is the most important part of the web application development cycle. Testing is carried out when the web application is completed before being implemented by the user. The method of testing web applications is determined based on quality factors that have been agreed upon between the...