Advances in Engineering Research

Many researches have been carried out on the influence of cracks and corrosion rate. There are two conflicting viewpoints on whether the crack width limits are objectively valid to reduce the corrosion rate; One is thatwider crack accelerate corrosion rate, while another opposing opinion is that the...

Environmental comparison and selection is an important measure to prevent and relieve adverse environmental impacts of construction project, and the comparison and selection of different span schemes is one of the priorities for environmental impact assessment of Sea-crossing bridge project. This research...

Wireless sensor network (WSN) is an emerging technology which integrated sensor technology, embedded computing technology, modern network, wireless communication technology, distributed information processing technology. This technology has wide applications. With the development of technology, WSN will...

The engineering big punch inverted siphon is located in coastal tidal areas of Doumen country, Gangdong province, and engineering use hinged assembly structure, method of construction using prefabricated Floating. First the pipe body is prefabricated, then floating and sinking into place, and then joints...

With the advance of global economic integration and global informatization, manufacturing enterprises are facing the business environment of uncertainty increases gradually, enterprise can only maintain competitive advantage through innovation, thus the survival and development. Manufacturing enterprises,...

A series of binary mixtures of adipic acid (AA) and erythritol (Ery) were prepared and the thermal properties were investigated in this study. The results showed that a eutectic mixture was formed when the mass ratio of adipic acid and erythritol reached 1:7. The eutectic mixture displayed a melting...

Aiming at the issues in microbial flooding process of Baolige oilfield, the following points were deeply studied in this paper indoor physical simulation experiments, the effect of different flooding ways on enhance oil recovery, the relationship between output bacterial concentration and injected bacteria...

In this paper, a recovery algorithm of direction-of-arrival (DOA) Estimation based on weighted minimization for vehicular applications is proposed. We construct an overcomplete basis based on the largest eigenvector of the covariance matrix, aiming at a sharp spatial spectrum that exhibits the high-precision....

The residence community gradually becomes the main living space of China's large and medium-sized city residents with the development of the internationalization of urban living environment and internationalization process of urbanization. The more international, livable and convince residence community...

In this paper, a hybrid control strategy is applied to control the Hopf bifurcation in a fractional order small-world network model. By choosing time-delay as a bifurcation parameter and analyzing the associated characteristic equation, we prove that the model exhibits Hopf bifurcation when time delay...

The talents who have innovative sense and high-skilled ability are required by not only the modern science and technology revolution, but also the economical and social development of a nation. In higher vocational teaching education, especially the teaching of electronic commerce with stronger practicality...

In allusion to the three problems of conventional D-S (Dempster-Shafer) evidence theory, this paper proposes an improved Dempster fusion rule based on weight preprocessing. By comparing the fusion results with conventional method and other improved methods, we conclude that the method in this paper is...

In order to improve the whole effectiveness evaluation of the missile weapon system with stage character of flight course, put forwards the ADC system effectiveness evaluation method by stage, and improved the ADC model by using coefficient of operators' level of missile weapon system (K) and battlefield...

Along With the continuous expansion of urban power grid in China, the rapid growth of power load and the requirement of improving the reliability of power supply, more and more urban and rural distribution networks adopt insulated overhead conductors. In order to ensure the safety of maintenance personnel,...

In this paper, we introduce a new improvement on AODV, which is a typical case of reactive protocols. One of the most important disadvantages of AODV is its long e2e delay, thus we focus more on the algorithm of reconnection when a chain scission happens. According the characteristic of AODV, each node...

What kinds of aspects are included in public services of urbanization? How many problems are there? How to solve them? In this paper, the author applies relevant systematic and scientific theories to treat the construction of public service problems as a system, and considers basic public services, social...

As an important part of traditional Chinese medicine (TCM), the pulse taking is the profound essence of TCM. The electrical network model of cardiovascular system coupled with a 10-unit and left-arm simplified model was established using SimPowerSystem components of Matlab based on the previous researches,...

the rapid development of rural tourism not only meets the changing consumer demand of tourism consumers, but also provides a new breakthrough point for the new rural construction in twenty-first Century, and the proposal of "beautiful countryside construction" gives new connotation and new ideas for...

SVG in distribution power grid has completely entered into the practical phase, as H-bridge of the core part of SVG, which is low test efficiency, poor reliability, high cost and requires repeated manual testing in the process of production. This thesis firstly analyzes the test environment of H-bridge...

Horizontal driving machine (HDM) will directly affect the moderating effect of automobile seat, it is necessary to carry out quality inspection. This paper first puts forward the overall design of HDM test platform, then clamping devices are designed and a complete testing platform model is build

Due to the extensive use of power electronic devices and nonlinear loads, the resulting of distortion in power grid voltage and current waveform becomes more and more serious. There not only exist integer harmonics of larger containing rate, but also include non integer harmonics of abundant spectral...

This work establishes an air spray model using the Eulerian multiphase model, and analyzes the spray cone shape and characteristic of paint droplets in the cone by performing computational simulations. Results show that the cross section of spray cone is elliptical. The distribution of big droplet phase...

The combination of increased strain rate and thermal softening of the workpiece at higher cutting speeds will cause the change of cutting force coefficients. In this paper, a vibration model for milling process, which can consider the variable cutting force coefficients (VCFC) with the spindle speed...

Hongyan hydropower station is located in Maotiao river, in Xiuwen county of Guizhou province,it is a power generation project and designed the third class structures, Pivotal Project are composed of dam, water diversion tunnel, powerhouse, subsidiary dam, etc. Dam is concrete double curvature arch dam....

The oil in place of Jinzhou oilfield is more than 7000 104m3. Because of good reservoir properties and adequate formation energy, the field has good developing prospects. However, with the end of flush stage after developing for years, we have to solve the problems such as which mode of production we...

In vehicular communication system, there is only a small number of samples for real time location system, so the sample covariance matrix will be a large degree of deviation from the signal covariance matrix. To solve this problem, a new method of DOA estimation is proposed in this paper, which improves...

Since 21st Century, Chinese enterprises are faced with severe situation which is rapid technological development, intense competition and personalized customer demand. Chinese enterprises have the only way to adapt to economic globalization and informatization, which is to share the information with...

Based on analyzing the damage feature of shallow buried and unsymmetrical loading tunnel, this paper studies the seismic reaction characteristics of this kind of tunnel via numerical simulation and comparison of the similar tunnel bearing symmetric load. The results indicate that the tunnel is more likely...

Nowadays more and more companies are using cellphone message to verify users’ identities. However, because there is no data encryption in global system for mobile communications (GSM) short message service (SMS), the being sent message is easily to be listened during transmission and your identity could...

For determining the reasonable ratio of spacing to diameter of double tunnels, the criterion is often only for the excavation, and does not take into account the earthquake situation. In order to ensure the stability of surrounding rock masses, safety and economic rationality during construction and...

In this paper, one carbon dioxide trans-critical refrigeration cycle with vortex tube expansion is proposed to replace traditional expansion valve in order to reduce the irreversible loss of the refrigeration system and improve its COP. The thermodynamic model of carbon dioxide trans-critical refrigeration...

The cumulative exergy method is used to analyze and optimize a heat pump distillation process with respect to the total environmental impact including resource use and emissions. The results from the proposed method are compared with the ones from thermoeconomics. It is found that such an extended exergy...

This paper studied micro Combined Heat and Power(CHP) system. Generating and waste heat recovery system based on gas engine are set up. Generation and waste heat recovery effects are tested and the results indicate that the system is practicable. Generating efficiency increases as the load rise, while...

Employing infrared telemetry principle and diffusion theory, this paper has established remote sensing model of continuous point source hazard clouds according to its density, harm in-depth and corner relationship. After a series of experiments, this model is convincible in effectively realize its immediate...

The pulp and paper mill sludge emissions generate a considerable amount of pollutants. Paper mill sludge is high in organic matters which could be used in agriculture as a soil amendment. In this study, a carbonization method for paper mill sludge was established and the effects of carbonized sludge...

At this stage, the high dimension and large variety of network data have increased the difficulty of intrusion detection. In this paper, we discuss the advantages and disadvantages of the MDBoost algorithm. Subsequently to optimize it, we add a slack variable in the objective function, so that the algorithm...

Although the low-permeability tight gas reservoirs in western Sichuan are widely distributed, of varied types, complex geological characteristics and difficult development, the reserves are of large scale and there is great potential for development. With the technology research breakthroughs of geography,...

Solvents have an important effect on the epoxidation of propylene catalyzed by TS-1. Through the experiment, this paper analyzes the effects of concentration of H2O2 and the addition of methanol in small amount on the propylene conversion, PO selectivity and H2O2 utilization in order to provide some...

This paper deals with the study of the dynamic performance of service-manufacturing hybrid supply chain with different forecasting methods. Two forecasting methods in two-echelon hybrid supply chain system are exponential smoothing forecasts (ESF) and moving average forecasts (MAF). Based on Automatic...

For the optically variable films series, using the boundary conditions of electromagnetic waves, we have given the propagation wave equation of S-polarized light wave in the optical variable film system with razor-thin metal film, which can be used to calculate electromagnetic field distribution and...

Solar blind ultraviolet imaging detector is useful in detecting corona of overhead electric transmission lines, reducing power equipment damage. UV lens are the core of solar blind ultraviolet imaging detector. Their property affects the performance of the whole detector directly. In view of the problems...

DSRC plays an important role in current V2X communication market, but its performance in real environment is still not very clear which raise potential dangerous to both the passengers and the vehicle factory’s business. It’s important for the vehicle designer to know the communication performance...

In this paper, we analyze Hopf bifurcation phenomenon in a nonlinear small-world network model with time delay and fixing probability.By choosing time-delay as a bifurcation parameter, we obtain that the model exhibits of Hopf bifurcation when time delay passes through a critical value. In order to control...

Wireless power transfer (WPT) systems are widely used in powering of Things (IoT) devices. The design and switching strategies of compensation circuits in wireless power transfer systems have become crucial for optimizing energy transfer efficiency and system stability. In this paper, a compensation...

Spoofing is an important threat to present satellite navigation equipment; and the research on spoofing technology is the basis of the anti-spoofing technology. According to the principle of spoofing, this paper analyzes constraints on timing receivers and navigation receivers. The analysis results show...

Guanping aqueduct is located at main canal of reservoir's irrigation district in the Dayong county, Hunan province, this aqueduct is reinforced concrete rib arch aqueduct, main arch ring is variable cross-section reinforced concrete double rib structure, arch axis is suspension of attachment, reinforced...

Algae scum, which is inevitable in the algae water separation process, should be harvested and forbidden to discharge into the water. This paper studied the variation of algae scum in electro-coagulation-flotation (ECF) process. All experiments were conducted in the homemade electro-coagulation-flotation...

Typically, the main form of Chinese medicine is based on interrogation of the patient's condition and artificial judgement by asking related patient symptom information; which is strongly subjective and prone to errors of judgment, leading to the wrong treatment outcome. The development in computer greatly...

The influence of different carbon content and temperature on the carbothermal reduction coal fly ash and the optimum conditions of carbothermal reduction coal fly ash were investigated. The effect of temperature on the equilibrium components of coal fly ash during carbon reduction process was simulated...

A two-dimensional axisymmetric thermal model, whose heat flux is constantly changing both in magnitude and position, is created based on the temperature distribution in the process of EDM surface strengthening. Using the JMatPro software to calculate the TC4 material parameters with the temperature changing,...

In order to solve the problem of low spatial resolution caused by signal correlation for angle estimation a novel DOA measurement approach for related signal is proposed based on vehicle MIMO-OFDM signal. The proposed method uses the cross-correlation matrix to reconstruct the signal covariance matrix,...

For Identity-based proxy signature, when the original signer cannot sign for some reason he delegate his signing capabilities to a person with an identity, in order to expand the scope of the proxy signer, an entity with a series of attribute properties can perform the right of signature. A new practical...

Based on the one-dimensional unsteady compressible non-isentropic flow theory and round-piston radiation theory with infinite baffle plate, the aerodynamic effects generated by a high-speed train through a tunnel with the discontinuous-type hood were numerically investigated, which shows the discontinuous-type...

We consider a newsvendor game with two substitutable products which are sold by two retailers with loss-averse preferences under multiple mental accounts. The game theory is used to find the retailers’ optimal order quantity. Given the order quantity of one retailer, there exists a unique optimal order...

The majority of coal mines in India use open-cast mining method to extract coal. The amount of overburden produced by the mine is increased as a result of the increased working depth and higher stripping ratio. Land scarcity is the major problem of the overburden management with stability in the mine...

order to study the temperature field, stress field, strain field, thinning rate and phase distribution in the hot forming process of torsion beam, the thermal mechanical coupling numerical simulation method based on LS-DYNA is adopted in this paper. Study found: Due to the different regions of part contact...

It is extremely significant to precisely control exit temperature of heat exchanger in industrial production. However, traditional control strategy has a great deficiency to be applied to temperature control system which is nonlinear, large inertia, pure delay and variant parameters. Smith predictor...

As a new horizontal rotation loading device, elevator comprehensive back-to-back test system can simulate the energy status of in different elevator load. It makes the elevator or its components such as magnetorheological(MR) traction transmission device to meet the dynamic characteristics in practical...

Considering the difference of phase-shift direction and amplitude attenuation direction when the optical wave propagates in conductive medium, with the boundary conditions of optical wave at the interface of the media, we derive the recurrence formula reflection coefficient for the S-polarized optical...

In the research of intrusion detection, we mainly focus on how to improve the accuracy of detection. Based on the introduction of support vector machine, this paper proposes a cubic polynomial smooth support vector machine model and uses it into intrusion detection. Subsequently we analyze each part...

Condition monitoring can greatly reduce the cost of Pumping Station, To have reliable operation its condition must be monitored constantly. the paper presents a monitoring system of Pumping Station based on FPGA. The system uses EDA development software Max + plus to achieve modular design in FPGA, such...

In this paper, the symbol error rate of distributed MIMO antenna systems in a linear cell is analyzed. Firstly, a composite channel model which includes the fast fading, shadow fading and path loss is established. Then, a closed form expression of symbol error rate for point-to-point downlink MIMO communication...

The lubricating oil sludge from steel wire drawing factory contains organic compounds mainly of fatty acids, which has good binding property and combustion performance. In this paper, briquette is prepared from pulverized coal with this industrial sludge as binder. The viscosity of sludge was tested...

Polyaniline is widely used in many fields due to its many advantages such as easy access to raw materials, simple synthesis process, good chemical properties and environmental stability. In this paper, the synthesis methods of conducting polymer polyaniline are discussed firstly. Then, the conductivity,...

We develop a model to analyze the data and then create a safety rating to specify a measure of how safe My City is. The goal is to use safety rating so as to evaluate the safeness of My City. Using historical data from the police reports in My City, we capture the essential elements of urban public safety,...

Understanding the settlement process of Cr in marine bay is essential to pollution control and environmental remediation. Jiaozhou Bay is a semi-closed bay located in Shandong Province, China. This paper analyzed the seasonal variations of Cr in bottom waters, and identified the settlement process. Results...

As the south-north water transfer project starts work, construction of aqueduct in China has entered a new period of development. Static analysis of aqueduct structure is the foundation of design and construction, includes the calculation and analysis of stress and strain of aqueduct structure. The stress...

The traditional analysis simulations are generally based on the time stepping mechanism in HLA. This method will greatly affect the simulation efficiency due to in a period of time no events occurred. This paper attempts to simulate high-level missile attack and defense using discrete event simulation...

In order to reduce salt pollution and reuse reactive dyeing wastewater efficiently, the residual dye was removed by calcium hydroxide, and the residual liquid was purified to remove the excess calcium hydroxide. The liquid was reused for reactive dyeing after the pH value was adjusted and the salinity...

This paper we intend to test the pressure during the process of grain drying in the rectangular silo and explore the change regularity of dynamic and static pressure. According to the trend of the dynamic and static pressure with height, we analyzed the pressure and the structure stress in the silo that...

It explores and constructs the principles of waste product redesign which are based on the concept of upcycling. It clarifies the basic concept of upcycling, briefly describes its current development, deeply discusses its value and significance, combines with the idea of upcycling which behinds regeneration...

The Zoobenthos in Baiyangdian Lake in Hebei province of China were investigated during August to October 2014, including the community structure and diversity. Total of 23 zoobenthic species were collected at 9 sampling sites, including 17 species of mollusca, 2 species of annelida and 4 species of aquatic...

Aiming at humanoid robot’s dual-arm collision avoidance motion planning, this paper firstly establishes kinematics model for humanoid robot and mathematic model for Workspace Target Areas (WTAs). Secondly, it has deduced inverse kinematics formula based on DLS-SVD method and proposed a bi-directional...

Adapt to the global strategy of the state, the paper builds a geospatial information service platform with a global coverage, high resolution, multi-subject, and the national global strategy formulation and implementation, to provide the fusion and strategic decision-making ability of massive dynamic...

In order to improve teaching informationization level of dance and promote the popularization of dance education, research the media coding of dance teaching live system based on iOS platform, support provide technical for the live system development. Firstly, study the iOS platform system structure...

IEEE802.15.4 defines MAC and PHY specification for low-rate wireless personal area networks (LR-WPANS), which targets wireless networking among low-rate, low-power and low-cost devices for short range telecommunication. As the wireless sensor network (WSN) used in ward monitoring system need to handle...

The design is comprised of single-chip computer module, liquid crystal display module, sensor module, clock chip module and speech chip module. Magnetoresistive sensor is responsible for collection of magnetic field strength in specific direction, while clock chip is for calculation of data such as time...

At present, rarely research is done about the loading process of cable net curtain wall with spring mechanism, therefore, how to select the spring stiffness at the cable end and what role the spring play in the process of loading become the very concern for curtain wall designers. Therefore, based on...

SAR dual-channel cancellation technique can suppress the scatter-wave jamming of single jammer, so the scatter-wave jamming method of multi-jammers for SAR dual-channel cancellation system is proposed. First, the scatter-wave jamming suppression principle of dual-channel cancellation is reviewed. Then,...

The reform of oil and gas industry can improve significantly the industrial efficient, sustainable and healthy development. This paper chooses United States as a representative case, reviews the whole reform course of the oil and gas industry in US, and also establish an evaluation index system which...

Aimed at the problems existed in current opening laboratory system are analyzed, and puts forward the improvement of the platform, design with learning resources, map navigation guide, wireless service platform and other functions, to achieve a unified platform, sharing interface, the introduction of...

On the base of analysis of probability of failure under uncertainty of susceptibility measurement in the reverberation chamber, we derive the relationship between the sample number of stirrer positions and the number of the mean value of electric field of different injected power levels during the measurement,...

This paper analyzes the energy status and energy saving measures of the universities in the world based on the current situation of building energy consumption, compares the data including energy consumption per unit area, electric energy consumption per unit area, energy consumption per capita, electric...

In order to solve the current college admission work problems like workload focus, department coordination problems, and low artificial statistical efficiency, on the basis of college admissions requirements analysis, this paper proposes the use of big data to collect admission work data in each link...

The paper simulated numerically the process of wind-blown sand flow impact-induced erosion of cement-mortar block. The concept of wind erosive critical pressure was put forward. Furthermore, the calculation formula of the impact pressure of sand grains, the attenuation equation of elastic modulus and...

The integral steering linkage is the key part on vehicle, which can ensure the Ackerman steer angle when steering. in this paper, The mathematical model of the Ackerman steering linkage is established. The author introduces the optimal design program for the Ackerman steering linkage with MATLAB optimtoolbox....

With the development of smart distribution grid, metering devices for low voltage distribution network is getting better and better, which lays the foundation for the accurate calculation of theoretical line loss. Firstly, this article points out existing problem of commonly used calculation methods--equivalent...

A method of attitude measurement using general commercial photoelectric sensor is proposed for the floated inertial platform. The installation error of the photoelectric sensor is analyzed and modeled, and the weighted recursive least squares algorithm is proposed to identify the misalignment angle....

In the paper, we combined with an actual engineering about an old bridge which filling pile. Through conducting the structure performance testing and cap beam Carrying Capacity of the old bridge, and using the comprehensive assessment method grading the old bridge, these provide a scientific basis for the...

The effects of different N and P nutrient limitations on the growth inhibition of Prorocentrum minimum by Ulva pertusa Kjellm fresh tissue and dry powder were studied in this paper. The results showed that U. pertusa fresh tissue and dry powder could inhibit the growth of P. minimum, and the growth inhibition...

Unmanned aerial vehicles (UAVs) face significant challenges in dynamic obstacle avoidance despite their broad applications in agriculture, logistics, and emergency response. Existing methods, such as sampling-based RRT and graph-based Dijkstra algorithms, often struggle with dynamic environments and...

This paper proposes a method of mechanical performance prediction of cold rolled ribbed steel bars based on RBF network with whole variable space. It builds a whole variable space model and studies the performance prediction of cold rolled ribbed steel bars based on the 5-in & 1-out RBF network and the...

In this paper, we investigate symbol timing offset and carrier frequency offset estimation problem in distributed MIMO-OFDM systems. In distributed MIMO-OFDM systems, signals arrive at the receiving antennas on different timings and are characterized by distinct CFOs. This property makes synchronization...

Limited by the properties of infrared detector and camera lens, infrared images are often detail missing and indistinct in vision. The spatial resolution needs to be improved to satisfy the requirements of practical application. Based on compressive sensing (CS) theory, this thesis presents a single...

Graphene has become a hot topic in the field of materials because of its excellent properties and unique two-dimensional structure. In this paper, the preparation methods of graphene are reviewed and the advantages and disadvantages of each method are analyzed. The mechanical, optical, electrical and...

With the help of topology optimization and coupling analysis, the virtual prototyping technology was first used in designing a GFRP engine mount frame. In this design, the topology optimization technology based on a variable density method was introduced in order to reduce the structural weight while...

Traditional manual parameter debugging is subjective and requires professional experience. To make up for the deficiencies, a new kind of parameter debugging approach based on complex genetic algorithm is proposed to calibrate the parameters of Xin'anjiang model. The proposed approach combines genetic...

Dance appreciation is a creative and complex spiritual activity process of the unity of feeling and understanding, affection and understanding. Development of information technology and mobile terminals provide a new way to dance appreciation. In order to develop dance appreciation video system, this...

Real-Time Monitoring System(RTMS) is the result of the development of information technology, which has made a huge difference to the life and work. The Android based GIS terminal is designed and implemented for RTMS, integrated with Internet communication, GPS, and intelligent navigation technology....

By immobilized ferric oxyhydroxide on absorbent can improve its dispersion property in aqueous solution, then improve its application in water treatment. Ferric oxyhydroxides composites had been used as the absorbent on contaminants removing nowadays. This paper use this composites to absorb manganese...