Advances in Engineering Research

Based on the available theoretical and half empirical methods of gerotor pump design, the optimization of inlet and outlet cavities for an inner engaging ellipse gerotor has been presented. The interior flow inside of the optimized cavities and pump has been observed by using software Pumplinx, and the...

As the development and enhancement of economy and national power, our country has become an important engine of the world economy. “One Belt One Road” is conducive to the sustainable development of China's economy, and also the common needs of the countries along the way. “One Belt One Road” provides...

Rolling schedule plays a decisive role in rolling of strip steel, and has an important effect on capability of rolling mill. The optimize method of hot strip rolling mill is researched, and the capability of rolling mill is improved effectively, so the quality of the product is also improved.

Economical data mining is practical and meaningful. Economic development levels of different regions in China are varied. We use complex network analyzing method to make network graphs and did nodal analysis and community structure detection of these regions to indicate the difference of the economic...

The three-dimensional geometric model of hydraulic retarder is built based on an enterprise production as reference prototype, On CFD platform, based on the three-dimensional entity model of the hydraulic retarder, the internal flow field at full-filling condition is simulated and the braking performance...

In this paper, techniques for chemical accident emergency generating were studied, and the basic framework of plan generating system was established through analysis of the contents of a typical emergency plan. Under this framework, the approaches of generating different parts of a plan were discussed...

In recent years, all kinds of frequent occurrence of unexpected events, damage is very serious, affect the range is very wide. These sudden public events not only cause great loss of life and property, but also affects the social stability, and even endanger the national security, the economic society...

Domain name system are both the underlying business, but also an important part of the Internet infrastructure. Research for this article expand BIND domain name system management problems. First, four domain names, for example, study the structure of multi-level domain name system; Then, based on the...

Based on the given data of As content in the soil ,using Log transformation, the Box-Cox transformation to exclude outlier for preprocessing data to meet the normal distribution.Using Anselin elocal spatial autocorrelation model to carry on local spatial clustering in order to cluster the similar attribute...

Make the composite electrolyte by doping Al2O3 powders ,in the ratios of 1:0.02 and 1:0.04 respectively to the electrolyte masses, into initial powders of the electrolyte-BaZrCeYO made in the method of Pechini. After 10 hours sintered at 1400 , the composite electrolyte was completed , XRD test carried...

A pot experiments were conducted to study the effect of mulching tolerance plant straw on phosphorus and potassium uptakes of Cyphomandra betacea seedlings under cadmium (Cd) stress, four tolerance plants (Digitaria sanguinalis, Clinopodium confine, Plantago asiatica, Ranunculus sieboldii) straw were...

Sic (silicon carbide, Sic), represented by the third generation of semiconductor devices with its superior performance, has obvious advantages on the voltage level, working temperature, switching losses. Then the size, weight, cost of the power electronic conversion may be significantly decreased and...

Because of the shortcomings which Elman neural network in the short-term load forecasting of power system is easy to fall into local minimum, slow convergence, Use VPSO (Variance Particle Swarm Optimization) to train Elman neural network in order to get optimal weights and thresholds. The optimized Elman...

There are different periodic and fixed points under iteration of sum of squares or cubes of digits of positive integer in different positional systems. On the iteration of sum of squares of digits, in binary and quaternary these points all converge to fixed point 1. There are three fixed points and one...

In order to research the Influence of the strength of the filling body on the surface subsidence and deformation, with the 10203 working face of Xinyang Mine as the background, based on the numerical simulation software of FLAC3D, when the filling rate was 90%, the Influence of the strength of the filling...

Research the method of blending Chinese ancient architecture into product design. From two sides of the overall features and characteristics of each part,summarized the artistic characteristics of Chinese ancient architecture. Enumerated examples of the comparison of morphology, structure and hue between...

The rotary hearth furnace iron nugget process has advantages of short reaction time and high quality product. Using semi-coke, bituminous coal, anthracite, charcoal and coke as raw material, effects of reducing agent species on reduction and melting separation of carbon composite pellets were studied....

Effect of observation Fusen herbal tea in normal mice methods.: given to mice for 17 days, daily 2 times respectively in drinking high dose Fusen herbal tea, small dose Fusen herbal tea, Wanglaoji large dose of herbal tea, small dose of Wanglaoji herbal tea, herbal tea replace normal mice drinking water;...

For geometrical tolerance projects, some tolerance projects relate to other geometrical tolerances, namely a individual geometrical tolerance can control several other geometrical tolerances. If we can not accurately judge the related geometrical tolerance which can be natural controlled by a certain...

China's trade policy and China logistics policy changes, the rapid development of aviation logistics in china. Aviation logistics developing in a high speed, China's domestic aviation logistics enterprise has brought new market development opportunity while, also brought from the market environment changing,...

According to the monitoring data of content of 8 main heavy metal elements in a certain urban area, this paper conducts a modeling study on heavy mental pollution of superficial soil in cities. According to single-factor concentration evaluation standard and comprehensive evaluation standard (Nemerow...

In tissue regenerative cell therapy is an important limitation is the initial hypoxia. In order to increase growth and cell survival after implantation of our oxygen release material were tested. Calcium peroxide polymer matrix used as the oxygen source. Two polymers to slow and prolonged release oxygen,...

A pot experiment was conducted to study the effects of different concentrations of selenium (Se) on photosynthetic pigment content of Perilla frutescens. The results showed that Se treatment had significant effect on contents of chlorophyll a, chlorophyll b, carotenoid and total chlorophyll. With Se...

Glass materials are widely used in building, which can improve the lighting condition of the building, but often have some problems in actual use. To solve the problem of increasing heat and energy consumption, an energy saving film is gained in this paper based on optical thin film theory and optimization...

In order to improve the benefits of the mobile cloud computing network and the quality of the security service of the mobile cloud computing, this paper aims to make a design of the control framework of the cloud computing resources of the cloud computing security service among its service domains, and...

Telecom user behavior analysis, is that in the case of gaining the basic consumption data of the users to disposal, count, and analyze the relevant data, and discover the law of the users consumption from it, and combine these laws with the telecom marketing strategies to find the problems in the current...

Brought about rapid development of the power grid technical innovation, infrastructure and new equipment put into operation significantly increase the workload, frequent changes in network operation mode, non-normal operation mode, special operation mode is difficult to avoid, to the security and stability...

Phase unwrapping is a key step of interference synthetic aperture radar (InSAR) signal processing, while the existence of some factors such as the noises and the lack of data sampling makes this process extremely difficult. The least square method is the fastest way to unwrap, and there is no region...

A 3D meso-mechanical model is introduced herein to estimate the elastic properties of concrete materials on the basis of the assumption that concrete can be considered as a three-phase material which contains cement mortar, aggregates and interfacial transition zone (ITZ). The influences of aggregate...

Abstract. The password technology is one of the core technology of information security problem. The purpose of the key management is the key of the production, storage, distribution, update, control and destroyed in the process of the whole life cycle to ensure the safety of the key. Key management...

In the 1980s, the speed to run industry to enter China, China Express enterprises increased rapidly expanding business scope. But in the course of the rapid development of a number of courier companies, small scale of operation of enterprises Express business qualification, the poor level of service...

The purpose of this paper is to identify the core technologies in metro field by analyzing the overall structure of technologies and interactions among of them, which is beneficial to grasp technological trend and advance of metro field in China. For this study, the metro patent data were collected (1986-2015)...

The chemically recuperated gas turbine (CRGT) is a promising engine on ship because of its high thermal efficiency and low pollutant emission. This paper is aimed at determining an applicable configuration of the CRGT for marine applications. Diesel is the selected fuel, and the minimization of Gibbs...

The research of magnet-track relationship is the foundation and key point in maglev system dynamics. Due to the ups and downs, traverse, yaw, pitch and roll of the suspension electromagnet will certainly happen when maglev train moves, so establish three-dimensional numerical model and calculate the...

The optimum design of a novel full air cooling UV-curing oven is proposed, to overcome the disadvantage of traditional drying ovens on the high energy consumption and inefficiency, at al. The optimum curing oven is simulated and analyzed by Fluent applied to the CFD technology. Comparison between the...

A study was about the surface soil enzyme activity and N indicators Variation characteristics of Phyllostachys bambusoides forma shouzhu Yi forest in Liangping, Chongqing Municipality in spring and summer. The results showed that, the forest soil content of organic matter(OM), total nitrogen(TN), available...

In this paper, an evaluation index system is developed for the intensive use of rural residential land from the aspects of land use intensity, input-intensity, arrangement, as well as usage efficiency. Using the entropy method, on which the intensive use level of rural residential land in Suining County...

In order to solve the job shop scheduling problem which includes disordered material flow and lopsided load of equipment, the thesis has done some research on how to apply in genetic algorithm on hybrid flow-shop scheduling problem. And the thesis also has illustrated the method of realization from a...

In this paper, Dynamic response and energy harvesting potential of single piezoelectric flag in the uniform flow is analyzed through 2D simulation method. A piezoelectric material named Polyvinylidene Fluoride (PVDF) is used to manufacture the piezoelectric flag. Special example is introduced to analyze...

The article deals with the stress-strain state of layered composite of rectangular section under tension by distributed uniform normal load q. Interaction between layers is accomplished by the contact layer in which is mixed the substances of adhesive and the substrate.

Land as the carrying capacity of human activities, the influence of carbon emissions different way of land use contributed to is different. Thus, the paper taking Changchun City in China as an example, estimates the net land use carbon emissions from 2001 to 2013 and explores the measuring method.

To obtain high-quality output voltage, a multi-loop control for UPS inverter is proposed. On the basis of double closed-loop control, repetitive control is introduced to improve total harmonic distortion (THD) of the output voltage. Also, RMS control is introduced to increase steady-state accuracy of...

Aimed at the contradiction between personalized recommendation and privacy protection, this paper puts forward the basic idea of persona, a digitalized user model. The method uses browser to analyze user's access behavior, gets a comprehensive and accurate user model, so as to help realize the personalized...

Case base construction is of great significance for the promotion of case teaching. But at present there is no successful geosciences case library can be used as reference. So the construction and development of geosciences case library has significance to fill the gap. This article is about design and...

This paper is the analysis of electronic commerce development process, the logistics cost composition and characteristics, and the content of our country sheds cost and how characteristic. To our country electronic commerce development environment, the factors which influence the logistics cost. Through...

A new type of polyhedral oligomeric silsesquioxane (POSS) (7Ph-T7-Vinyl) containing phenyl and 9, 10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide (DOPO) was synthesized from phenyltrimethoxysilane, trichlorovinylsilane, and DOPO in high yield. This product was subjected to addition reaction using an...

The current sampling value differential protection gradually reflects its unique superiority among various differential protection. With the application of sampling value differential protection, the influence of frequency offset on it should be considered. In this paper, based on the analysis of the...

Sprouts need substantive water in the growth process, which will cause a high manual irrigation cost. Besides, manual irrigation is usually uneven. To solve this problem, a rotary sprout vertical cultivation device is designed to realize automatic irrigation and guarantee evenness of irrigation during...

Micro blog content distribution becomes a bottleneck restricting the development of micro blog. In this paper, a study based on Struts2 framework provides technical support for the system development. Firstly, learning Struts2 framework, core controller, business controller and business logic components;...

In order to protect the increasingly gradually scarce forest resources and ecological resources in the urbanization, the forest construction has become an important measure to promote the greening and beautifying of the urban and rural areas at the present stage of our country. Forest construction involves...

As the subway as public transportation in major cities in China play an increasingly important role, the subway operation safety more and more get people's attention.Due to the particularity of subway operation environment and status, makes the subway foundation, especially the quality of the steel rail.The...

Cd-induced signal transduction triggers ROS production, which promotes oxidative stress indirectly. In the present work, we aggregated and interpreted the abundant biological evidence that has been accumulated to date into a network, and then constructed a multi-level dynamic model of signal transduction...

The development of air transport and high-speed rail (HSR) is facing two problems. One is competition, having been stated in many literatures focusing on the economic distances; and another is stresses from large investments, energy consumption and environmental degradation. In this paper, the feasibility...

A collaborative evolutionary optimization method for the layout of hydraulic manifold blocks was presented according to its structure feature, an optimization design mathematic model of manifold blocks in the spatial layout was established, and it was solved based on the ant colony algorithm. Special...

The moving blade adjusted axial fan is used in the icing wind tunnel, controlling of rotation rate and adjustment of angle of blades in the static state to achieve the test Mach (Ma) number in the kinds of condition. The axial fan should have the following advantages: wide range of speed regulation,...

A bidirectional real-time data communication without distinction between master and slave is achieved with double TMS320F28335 DSP using its multichannel buffered serial port (McBSP). The shortcoming of the communication on SPI mode that the slave cannot initiate communication is overcame. The hardware...

Three Ti-Nb microalloyed high strength steels with varying Ti contents were refined in laboratory 50 kg vacuum induction furnace. Microstructure observation and TEM analysis were conducted. Tensile tests were performed. The results show that both yield strength and ultimate tensile strength increase...

With the continuous development of China's market economy, courier services, the rapid rise of one of the services has become indispensable in our lives. Courier service for its speed, time-consuming short, convenient features popular with users. Courier service companies on China's market is mainly...

This paper carries out a research to analyze system transient response and its effect on sound speed measurement based on two frequency continuous wave (TFCW). Because the bandwidth of an actual measurement system is limited, the received signal is generally polluted by a system transient response, and...

The collapsibility test in field can have several times to tens of times of error with computed results. The writer's purpose is to find the regulation of the develop of loess' collapsibility, a field test was completed, the writer also gave a formula to forecast the relationship between immersion time...

In factory production of sprouts, the layer-rack vertical cultivation devices are usually used and the sprinkling irrigation adopted, which is a severe waste of water resources. Besides, for lack of sunshine, growth of sprouts is hampered. To solve this problem, a sprout ultrasonic aeroponic cultivation...

Construction project cost is the key problem in the control and management of construction project. For the existing cost system can not adapt to the development of the construction industry information needs of the status, this paper based on the use case model technology to the construction cost system...

The evaluation system of the theater is based on user data, professional evaluation and audience comments, and we use web technology to build the system. In this paper, the framework, function and technical design of the evaluation system of the theatre are presented. Thebootstrap is used to buildthe...

In order to better assist the innovative furniture design, toy brick style combination concept is applied to furniture design. This paper analyzes the history and conception of combination furniture based on this concept, and analyzes this concept from game, DIY, green design, function design, and culture,...

Jin’an bridge station is located at the middle reaches of Jinsha river which is a new super large hydro-power station, since impounded in 2012, different levels of landslide happened to the reservoir slope, and the change of seepage field is one of the main reason causing geo-hazards. In this paper,...

A code is a cyclic code if and only if is a -submodule of the ring . Perfect additive codes have been utilized in the subject of steganography. The algebraic structure of cyclic codes was determined in 2014. In this paper we determine the algebraic structure of cyclic codes ,where is an odd prime. Any...

With the sustainable development of society and economy, people’s living standard is experiencing a steady improvement, a lot of urban domestic garbage has become a social problem which contaminates the environment and influences our life. Reasonable and effective solutions are both actively looked for...

Based on unmixing model and using the Thematic Mapper (TM) image as well as obtaining end-members by ground spectral measurements, quantitative retrieval of information on sparse vegetation coverage in oasis-desert transitional area in Minqin, Gansu was done. The results showed that a wide band of TM...

Within 38 primer pairs tested, 26 pairs were successfully amplified, and 81 PCR bands were amplified, with an average value of 3.12 bands per primer, 18 pairs showed 100% polymorphic ratio, 2 pairs showed 66.67% polymorphic ratio. In total, 72 PCR polymorphic bands were determined, and in average, 2.77...

Charge pump is the configuration which can provide a voltage gain to program nonvolatile memory in radio frequency identification (RFID). In this paper, A complete theory of charge pump is presented, which shows that the influence of body effect on power dissipation and power efficiency is more and more...

Aiming at the question that each positive sample in trained sample set has the same weight when training the naive Bayesian classifier in discriminative tracking algorithm, an algorithm is proposed to put different weight on different positive sample according to the distances between the positive samples...

The paper presents ways for determining parameters of the characteristic impedance , the value of time constant , and , through formula transformation and frequency spectroscopy method (FDS).Finding out the values of coefficient with Cole-Cole model. Building double-relaxation model to fit complex dielectric...

Aiming at the problem that the existing semi-active suspension system needs external power supply, the electromagnetic energy recovery device for semi-active suspension is proposed. Based on the analysis of the structure and working principle of the energy recovery device, the energy recovery model and...

In order to study the applicability of the Fiber Reinforced Plastic (FRP) composite materials for light structure, a tensile compression test of a large number of FRP samples was carried out. Through statistically analysis of test data, we get the FRP’s basic mechanical parameters like tensile strength,...

It is utilized the pot experiments to investigate physiological and biochemical indexes as well as the characteristics of the accumulation of uranium of Sorghum bicolor´S.Sudanense. under the different uranium concentrations (0,1, 5, 20mg/kg) stress. It shows that photosynthetic pigment and soluble protein...

This paper aims to analysis the ball screw pair in transient dynamics model based on the virtual acoustic prediction software. Its acoustic finite element model is established in the Lab to extract the transient dynamics analysis, which is concluded that the vibration response of the ball nut pair of...

Using the modern time-series analysis method in the time domain, based on the autoregressive moving average (ARMA) innovation model and white noise estimator, non-regular descriptor discrete-time stochastic linear systems are researched. Under assumption 1~3, an asymptotically stable reduced-order Wiener...

Plenty of transactional work is continual, odd and time-consuming. Using the VBA technique can simplify the work procedure and liberate the workforce. A case of fetching required information from Word files and filling into the sheet of an Excel file is discussed. A general method of using embedded VBA...

Aimed at frequent bulge fault of breaker hydraulic operating mechanism, oil pump failure is analyzed, and liquid level sensor and gas sensor are used to design intelligent exhaust device. This device, with neural network self-learning height measurement algorithm as core, processes the data obtained...

With the development of China's science and technology and large-scale construction of infrastructure, put forward higher requirements to the highway pavement performance, modified asphalt is necessary. Aging is a problem of modified asphalt in use process cannot be ignored, which directly affects the...

In order to find out the hydrogeological condition of aquifer and gain the permeability coefficient, the permeability coefficient was inverted based on the data of mine water inrush. The observation data of water flow and long-time observation hole’s water level was be used during the process of water...

GPS Speed Measurement, just like position measurement, is a very widely-applied field. GPS can not only determine the real-time location of carriers in motion, but also determine the instantaneous speed of carriers . Therefore, at present, GPS speed measurement is also very widely applied. In view of...

In order to analyze the failure cause of welding insulation cylinder, to which explosion had happened, in a filling station, a series of experiments and analysis were taken, including macroscopic analysis, chemical composition analysis, fracture Analysis, metallographic examination and so on. The results...

This paper aims to comprehensive research methods both in China and abroad and develop a practical method of environmental risk assessment about enterprises from key industries based on the data of Tianjin Binhai New District. This method consider the following factors: types of industries, the enterprise...

Color texture segmentation is a very important subject in the fields of computer vision. In order to segment the color textures, a new method based on active contour model with nonlocal Tikhonov regularization is proposed. In detail, another smoothness item which is the Tikhonov regularization is added...

The existing knowledge management platform cannot well support the design and development of the large power diesel engine, based on the function and requirement ‘s analyses of the knowledge management on the innovation platform, through the introduction of the integrated delivery, forming an innovation...

According to the principal of aircraft electrical anti-skid braking system a detection equipment was designed by integrity using PLC technology, LCD graphical displaying, measurement and control data processing, information storage and communication technology. The design schemes of hardware and software...

Slowness is a crucial factor to prevent matrix method from its practical use in network topology. The matrix method which gets full connectivity matrix by multiplying the adjacency matrix repeatedly and determines connective sets by comparing or scanning rows of the full connectivity matrix is very time-consuming....

According to China's new energy large-scale centralized development which brings some problems, such as: resource monitoring, electric power forecast, cluster modeling, active / reactive power / security and stability of the coordinated control and demonstration project construction, design and development...

Under sunshine action the concrete box girder will generate temperature gradient load which will lead the temperature stress in the structure. But the sunshine temperature gradient load type and value for concrete structure are slightly different in specifications worldwide. Long-term Observe the sunshine...

Effect of the particle size of Cu, Cr on the microstructure of Cu60Cr40 alloys was investigated using the method of mechanical alloying and microwave sintering. The particle size of Cu, Cr was analysised by the BT-9300S type laser particle size distribution analyzer, and Cu60Cr40 alloys has been investigated...

In this paper, reviewed some biodegradable polymer materials such as photodegradable polymeric materials, chemical synthesis polymer materials, microbial synthesis polymer materials, photo biodegradable polymeric materials and mixed type polymer materials. Points out the existing problems and the development...

At present, commonly used methods to identify Burgers model parameters have subjectivity shortcomings. This paper adopts 1stOpt software with unique nonlinear fitting function. The stress-strain-time equation can be obtained according to constitutive equation of Burgers model. Then four parameters of...

Aiming at the influence of front vehicle cut in suddenly on driver’s physiological load, 22 drivers were convened to carry out virtual driving test with equipment of MP150 physiology monitoring system, and driver’s physiology data was recorded when the front vehicle cut in suddenly. Heart growth rate...

The dynamic frame slot ALOHA (DFSA) algorithm is a typical anti-collision. For the shortcomings of DFSA algorithm, this paper presents an improved algorithm – IDFSA. On the one hand, IDFSA algorithm to improve the label estimation algorithm, so as to achieve dynamic adjustment. On the other hand, through...

With the continuous improvement of the manufacturing level in the aerospace, automobile, shipbuilding and other fields, higher requirements for the assembly precision and speed of the components in the manufacturing process are raised. However, the manual operation method is generally adopted in the...

According to the procurement under multiple-supplier, this paper evaluates the supplier quantitatively. Considering the factors of procurement cost and price discount, this paper establishes a procurement model based on the theories of relationship management. This model can give the optimal scheme and...

In order to verify the influence of curing degree of retarded binder on the friction coefficient of retarded-bonded PC steel strand, 3 PC beams with 3300mm in length and 300×400 cross-section is manufactured and 3 retard-bonded PC steel strands in straight-through arrangement at each PC beam is set....

With the development of multimedia technology and the popularity of Internet technologies, network streaming media of communication have become multimedia communication is required. Using existing audio and video encoding and decoding algorithm can dramatically reduce the amount of data transferred,...

In order to have a clear understanding for frame structure’s vibration modal, and improving the structure’s dynamic characteristics. This paper adopts finite element method to simulate and calculate frame structure teaching building, and gets natural frequency and vibration mode of frame structure teaching...