Advances in Engineering Research

This paper introduces the basic principle of Boost circuit topology and photovoltaic maximum power point tracking technology.According to the characteristics of photovoltaic cells output nonlinearity, this paper designs a fuzzy-PID controller to track the maximum power point of PV cell. The controller...

The ant colony algorithm is a new kind of simulated evolutionary algorithm for random searching, which converges to the optimal path by the accumulation of pheromone and updating. But it lacks the global searching ability, and easily falls into local minimum and appears the phenomenon of premature stagnation....

In this paper, we present the implementation of infeasible kernel-based primal-dual interior-point methods for linearly constrained convex optimization. Numerical results are provided to demonstrate the efficiency of the algorithms.

A Numerical method of frictional behaviors in the microscale is presented to meet the simulation demands of the tribological characteristics for composite sealing ring in the transmission of heavy-duty vehicle. The microscopic dynamic responses of sealing surfaces are visualized when loads are applied...

In the present era, computer technology is developing rapidly, and its status in people's minds is also higher and higher. In daily work and life, computer technology is widely used. Computer education in Colleges and universities can be a good foundation for advanced computer learning, so people also...

Acoustic environment is one of the important factors affecting the overall urban environmental quality. In this paper, the public space in the hydrophilic spatial zone along the Yitong River in Changchun was chosen as the object of study. Test points were selected for the measurement and statistics of...

Network traffic holds the highlighting dynamic features. How to accurately characterize the hidden properties of network traffic has an important impact on network activities, such as anomaly detection and performance analysis. This paper proposes a feature analysis approach to describe network traffic....

Lime is important in the process of production of iron and steel materials, lime quality determines the quality of steel, lime production in China is much, but quality is not high, low efficiency, such as a direct result of the iron and steel production quality is not high. Automation so around this...

The web application performance testing is gaining wide attention due to popularization of Web application rapidly. To improve performance test efficiency, this paper chose domestic performance test tool PerformanceRunner to study, and presented one oriented-web performance test scheme based on PerformanceRunner....

Matchmaking is a matching process. In game, those matchmaking is a matching process that functions to find our opponents and friends. However it is harder to win the game when there are smurf players who play in matches that don’t match their abilities. Because of that, we want to propose next level...

Under the push of information, the traditional operation mode of "platform centric" is changing to the "network centric" cooperative combat mode. At present, with the development of aviation, aerospace, navigation technology, based on the concept of Network Centric Warfare, the derivative of the "space...

Inflatable fabric membrane has been typically used in aeronautics and astronautics, large-scale construction and other fields because of its advantages: light weight, low transportation costs, and ease of deployment and storage. However, a natural challenge is the accurate characterization of the mechanical...

Reinforcement constrains of reinforcement applying on concrete mainly depends on three factors: the grade of concrete (elastic modulus), section reinforcement and loading time. The lower grade of concrete, the smaller reinforcement ratio, the longer loading time all make an obvious influence of reinforcement...

Sleep and wake EEG have some differences. After studying their brain waves and calculating the sign series entropy, we use the T test for the detection of sleep and wake EEG data to figure out whether they are different. After beta waves being filtered out by the filter, we calculate the entropy of the...

In view of the current power transmission project design review, the requirements of automatic review, online collaborative evaluation and information intelligence analysis are increasing. This paper designed and implemented an intelligent design review system based on the idea of SOA and the SSH2 three-tier...

As an economical and effective means, water injection technology is currently used to improve the gas turbine power and efficiency. Due to the relatively long residence time of water droplets in the multistage compressor, the droplets may have a large amount of migration along the radial direction in...

At present, most of the researches on net present value are focused on single objective cases. This paper discusses net present value problem with upper level multi-objective optimization. In order to solve the problem efficiently, we present a genetic algorithm using interpolation. According to the...

Based on the principle of low coherent light interference of optical fiber, a new method for detecting the distance between the mirror surfaces of a compound lens is proposed. Firstly, a system based on the principle of low coherent light interference is designed. Secondly, the frequency calculation...

The development trend of the medical device marketing is to promote the quality system. The establishment motive of the quality system is mainly according to national regulation and the necessary condition of being public and the secondary reason is the customers' requirements. Quickly to recruit industry...

As the starting point of the supply chain and the end point of the loop feedback, the behavior of the supply chain suppliers in the home appliance industry is important. The evaluation index system is established on the basis of product quality, delivery reliability and technical ability. Using entropy...

A speech denoising algorithm based on bilateral filtering and wavelet transform is proposed in this paper in order to solve the noise problem in speech processing. After the discrete wavelet transform, the low-frequency part of the speech signal is filtered by one-dimensional bilateral filtering. Then...

Based on stochastic damage model, a new damage variate with two parameters is proposed to describe the damage constitutive relationship of concrete. The damage evolution laws of high-strength and high-performance concrete are obtained by a large number of experiments on it's mechanical properties. The...

The banking sector is starting to become a concern for research because it plays a major role in addressing social and environmental challenges and can positively influence society through the implementation of CSR. This study aims to determine the differences in CSR (disclosure) between Islamic banks...

Sulphoaluminate (CSA) cement has the advantage of fast-hardening and high early-strength, but the carbonation resistance is relatively poor. In order to enhance the impermeability of carbonated CSA cement pastes, this paper investigates the effects of ethyl orthosilicate (TEOS) surface treatment with...

The COVID-19 pandemic has changed everything. One prime example is in payment innovations, particularly the rapid transition towards cashless societies. Cashless payment has become people’s preferred method to conduct transactions. The use of cash is significantly reduced as it poses a serious health...

93 compounds which can permeate the placenta barrier were collected as data set for the construction of support vector regression (SVR) model. Besides, 140 compounds with reproductive toxicity and 170 compounds with no reproductive toxicity were collected as another data set for the construction of support...

For some passenger car’s torsion beam suspension appearing fatigue fracture problem, a method of structure optimization is proposed. By changing the hard point location of the torsion beam suspension spring, the vehicle’s coupled model is built. Through carrying out the vehicle dynamic simulation analysis...

Weak part analysis of a system is a key element in a system reliability quantification process. It enables the weakest areas of a system to be recognized and assists in directing remedial measures for improving the system reliability. This paper proposes an unreliability tracing technique for a ring...

Tube hydroforming is a developed and successful way for complex shapes with less operations required compared to conventional tube forming. Tube hydroforming technology is introduced briefly. Then the principle of forming, advantages and disadvantages of hydraulic bulging, Tube Hydroforming with Radial...

In this article, Active Disturbance Rejection Control (ADRC) is proposed for the control of the activated sludge wastewater treatment processes. Simulation results show that the dissolved oxygen concentration can track the set value with non-overshoot and short settling time as possible by ADRC. Under...

By deeply analyzed virtual reality technology, industrial robot virtual assemble system and related software and hardware platform, the overall structure and fundamental configuration of virtual assemble training system applying to general industrial robot was put forward. The virtual scene and the UI...

The purpose of this paper is to analyze basic theory of E-government system outsourcing and risk management theory, identify 33 risk factors of four stage of E-governmnt system outsourcing under asymmetric information, determine weights of all kinds of risks and the risk factors through empirical research...

In early 2015, Soekarno-Hatta International Airport was one of the airport that nominated as the busiest in the world in 2014. Soekarno-Hatta was ranked 12, with the number of passenger ñ 59.4 million per year, which is around 162 thousand passengers come and leave the airport every day. Month by month...

Using data from several Chinese censuses, surveys and yearbooks, we provide a new perspective for the study of rural-urban migration, regional differences and economic growth of Gansu in China for 1990 to 2000. We find that economic conditions impact strongly on the growth relationship at provincial...

Biogas residues were treated by earthworm composting and aerobic composting. The changes in organic matter, rapidly available nitrogen, rapidly available phosphorus and rapidly available potassium of biogas residues after the treatment by the two composting methods were measured to study the influence...

A new Lagrangian quadratic finite volume element method based on optimal stress points was presented for solving one-dimensional parabolic problem with trial and test spaces as the Lagrangian quadratic finite volume element space and the piecewise constant function space respectively. It is proved that...

The waste heat utilization rate of the waste heat utilization system of large-scale comprehensive hospital is analyzed, and the maximum recovery work of waste heat is obtainedOn the basis of the above analysis, according to the actual situation of large comprehensive hospital waste heat utilization system...

The superhydrophobic silica coating has a great performance of self-cleaning which can be applied in the field of energy saving, anti-icing, drag reduction, etc. In this paper, Trimethyltrimethoxysilane (MTMS) /Trimethylchlorosilan(TMCS) superhydrophobic silica coating with two-layer structure was dip-coated....

This paper proposes a new method to deal with the multi-attribute group decision making (MAGDM) problem. Firstly, a new distance measure between two linguistic terms is defined, then a new linguistic information aggregation operator based on the distance measure is proposed and their properties are studied....

Solid thermal finite element model of suspension bridge main cable was established by finite element software ANSYS. Layered grid was divided along the radial direction of main cable. Main cable thermal parameters ,including heat conductivity coefficient, specific heat, thermal expansion coefficient...

DTC (Direct Torque Control) with the torque and stator flux linkage as control variables directly, has the advantage of quick dynamic torque response, good anti-interference performance is also as an advantage, especially suitable for vehicle EPS power driven system to the requirement for the fast torque...

Dahaize coal mine was located in Maowusu desert and the buried depth of coal seam was relatively large. The excavated main slope passed through the following stratums, such as Quaternary, Jurassic, Cretaceous, and so on. And the differences of rock mechanics characteristic were very obviously. In the...

The arch tubes are filled with concrete using a small concrete pump. The tubes may be filled quickly with no external vibration using a self consolidating concrete mix. After a short curing period, the arches gain the majority of their final strength, providing the entire superstructure for a bridge...

The wireless charging process of electric vehicles often suffers from low charging efficiency and inadequate charging structure, so this paper aims to explore and optimize the charging method of electric vehicles. The article firstly describes the background of wireless charging, and then discuss-es...

Nowadays, unmanned aerial vehicles (UAVs), commonly referred to as drones, have attracted a lot of attention from varies fields. In the development of recent years, one of the most noticeable developments is the application of computer vision in drones, which provides key technologies for visual navigation,...

Especially on the island of Bali, agriculture as a culture still plays a vital role in supporting the development of tourism, both in terms of values, religiosity, and the environment, as well as farmers as producers, both in rice fields and non-rice fields (moors), because of the Tri Hita Karana philosophy...

Energy saving, environmental protection, safety is the main focus of the topic in today's world automobile in-dustry, the automobile lightweight technology is an important way to achieve this goal. This paper takes the automobile lightweight technology as the research object, it studies the automobile...

BOM database is designed through the analysis of the actual situation of the production workshop of the torque converter and the demand of enterprise. This paper analyzes scheduling management module, material distribution management module, real-time monitoring module and management module in the hydraulic...

Seek inspiration from the traditional houses, it is a way of thinking the author of the new rural housing design. This paper makes a deep analysis on the architectural features of the traditional houses, and discusses how to use and inherit the traditional residential space design concept in the design...

Unreasonable road design and disordered traffic conditions may trigger accidents. As a part of highway design, tollbooth has close relationship with road safety, and there are many security problems in actual operation and management.It's necessary to establish a security model that can assess the safety...

Aiming at the problem that the probabilistic neural network (PNN) is difficult to determine the smoothing factors in the process of partial discharge recognition in GIS. A model of GIS partial discharge recognition based on Mind evolutionary algorithm (MEA) is proposed to optimize the PNN. The MEA has...

At present, an unprecedented development situation of the urban rail and traffic engineering is presented. Bearing as a key component of vehicle operation safety, its performances and reliability should achieve higher requirements. Because the number of characteristic data of bearing performances is...

With the constructions of new-type towns, power demand in the towns grows constantly. In this paper, we have analyzed new features of towns and power utilizations in the new circumstances, and promoted morphological characteristics of distribution networks for new-type towns. We have stated several indicators...

Model checking is a popular model based formal automated verification technology. Computation tree logic is a prominent branching temporal logic for specifying system properties. In order to dispose of the state space explosion problem, we proposed a novel method based on BSP model employing Giraph which...

The aging of the filter material has become a key issue to limit its further development and application. The aging of the filter material is not only made the premature failure of equipment, a huge loss of materials, and waste of resources, but also the aging decomposition of materials caused the environmental...

Since the 18th CPC National Congress, financial reform of our country has entered the fast lane, the competition of commercial banks transit from blue sea to red sea, especially the emergence of the Internet finance, causes huge competitive pressure on the current commercial banks. Only if commercial...

This paper used PID, fuzzy and model predictive control methods to control the indoor air temperature and absolute humidity of an A/C system. Simulations were carried out with the three methods in Matlab and the three methods were compared in terms of static and dynamic characteristics. Results showed...

Damages of transformer, potential transformer, current transformer, circuit breaker, disconnecting switch, arrester and other kinds of high voltage electrical equipments in substation under different seismic intensities have been summarized based on the damage data of electrical power system during Wenchuan...

In view of the line loss control and the anti-electricity-stealing requirements faced by electric power companies, the design of the intelligent anti-electricity-stealing remote monitoring system has been proposed. The real-time monitoring of primary side of line current, the current of junction box...

The trustworthiness of safety critical system (SCS) is very important. To assess their trustworthiness depends on data from test. In order to ensure the reliability and validity of test data, especially for such complex SCS, development of test languages is inevitable trend for automatic test of SCS....

Based on the 3801 emerging industry research literatures recorded in CAJD, this paper uses bibiometrics method to analyze, summarize and evaluate the research results of emerging industry from literature time, journal distribution, subject distribution, carrier distribution, research scholar distribution...

In power grid inspection operations, there is an urgent need for mobile workflows based on power scenarios for on-site process management. This paper studies the workflow engine technology for power grid inspection operations, and designs a simple and easy-to-use mobile workflow architecture to guide...

The quality and yield of the finished product - cottage cheese - are influenced by various factors, including technological: the quality of raw milk, methods of coagulation of milk proteins, methods of processing the bunch, etc. Under the quality of raw milk for the production of cottage cheese, in the...

The 3D model of the oil-paper insulated transformer was constructed by SOLIDWORKS and simulated by Moldflow to optimize its vacuum-degassing technology. The number of the inside oil papers, the space of the adjacent two oil papers, the number and its distribution of the setting oil inlets are discussed...

In order to improve the recovery rate of sulfonamide antibiotics in sludge, and to optimize the extraction and determination methods of sulfonamides antibiotics in sludge, ultrasonic solid phase extraction -HPLC was used for the detection of sulfonamides antibiotics in sludge. First the determination...

Grouting water plugging after main inclined shaft of Dafosi coal mine engineering instance, to ensure the safety of the shaft wall in the process of grouting, for the purpose of borehole wall monitoring scheme is proposed. Using strain monitoring technique, the wellbore hydrological and engineering geological...

The maintenance capacity of EMU depot(EMUD) not only depends on facilities such as washing tracks and maintenance tracks, but also depends on the EMU circulation plan(ECP). The first-level maintenance of EMU is the most usual one and is almost during night as the special situation of ECP in China, which...

In this paper, the two-way coupling of flow and pile is simulated by using ANSYS Workbench. A comparison between the results of current force in one-way coupling, two-way coupling and code method has been made, proving a reference for the calculation of water flow in engineering. Four sets of influence...

Gradually expanding gap in the outlet of the Roots blower can effectively reduce the backflow impact and the noise of the blower. The working principle for the Roots blower with the gradually expanding gap is investigated in this paper. And the mathematical modelling for backflow is proposed. Numerical...

As one of the major methods used for geophysical exploration, Seismic exploration applies the propagation law of explosion excitation seismic waves in different strata to detect geological conditions underground. The vibration characteristics of explosion excitation seismic waves will influence the quality...

A CTCS-3 train control system is the key equipment for guaranteeing the safety, reliability and efficiency of high speed railway. Test sequence is the important document to guide the testing for train control system. Manual preparation of test sequence is characteristic of low efficiency and high demand...

Aiming at difficulty of weak characteristics of the nonlinear and low signal-to-noise ratio signals measured from diesel engine, a novel method combining second generation wavelet denoising and Hilbert Huang Transform(HHT) is proposed, and is used for feature extraction and condition evaluation of vibration...

The relationship between natural frequency and prestress-force is built to evaluate effective prestress-force of beams based on the theory. Two corresponding test mode beams are built up to verify the theory, the experiment results show that the natural frequency will decrease along with prestress-force...

Routing protocol is one of the core technologies of wireless sensor networks. RPL (Routing Protocol for Low-Power and Lossy Networks) routing protocol, designed by ROLL Working Group, is mainly implemented on the TinyOS and Contiki operating system. In order to extend the application fields of RPL, we...

Grid-side power converter is the key interface of the larger-scale wind power system connecting to the grid, with the continuous improvements of the penetration rate of the large-scale wind power equipment, the connected grid converter device plays more and more prominent influences on the large grid....

3D rigid-body model of a bucket of power shovel EK-18 was built using modern CAD (Computer Aided Design) software. A tetrahedral grid with 10-node second-order elements was chosen, and the given model was imported to APM WinMachine - model preparation preprocessor for finite element analysis. A finite...

The development of Internet of things has been listed as "12th Five-Year" planning, the development of logistics industry has become an important symbol of a country's comprehensive strength and scientific and technological level.The Internet of Things is one of the important strategies in today's world,...

With the development of intensive animal husbandry, which have brought a lot of problems? The pollution is more and more serious, which has becomes a threat to the agricultural ecology and food safety. At the meanwhile, the pollution seriously affected the healthy development of the breeding industry....

Coal gangue as admixture cement gelled material preparation, the preparation process of coal gangue calcined temperature of 600, using common P • O32.5R ordinary Portland cement, add 15% of fly ash and 1% of poly (carboxylic acid water reducing agent, chemical excitation agent with a purity of 99.9%...

Rice plants play a crucial role in satisfying human dietary requirements. However, they are vulnerable to diseases and various factors that can negatively impact crop yields and grain quality. Consequently, it is imperative to possess a comprehensive understanding of rice plant care and effective farming...

Implementation of 6G has been done in many countries. Expert said that 6G have more advantages than its predecessors. However, there will be challenges when we migrate to 6G. This paper review several technologies that has been used to migrate mobile system to 6G.

MgAl2O4 spinel, as support of the 10Ni/MgAl2O4 catalyst which used for coke oven gas dry reforming, was prepared by sol-gel, coprecipitation and urea hydrolysis method. The catalysts were prepared by impregnation. The MgAl2O4 and 10Ni/MgAl2O4 were both calcined at 800 oC for 5 h and the samples were...

Pedestrian Detection is a hot topic in recent years, which is attracting a large number of scholars. The detection models are developing from simple models to complex models and the detection accuracy has been greatly improved. DPM(deformable part model) become the best pedestrian detection model and...

With the aggravation of power demands, applications of power cables are more extensive. Researchers also start studying power cable fault location to find out a fault point rapidly and accurately, reduce losses effectively, and provide sufficient and continuous power supply. In the paper, by introducing...

Semiotics Approach to Product Architecture Design SAPAD originated from Semiotics, and is a method to construct product from three dimensions: behavior, product and signification. Through the analysis of the relationship of behavior—signification—object, user-centered product architecture strategy is...

This paper proposes a new detection method for accurate detection of dimension of thin sheet parts, breaks a traditional manual detection mode, comes up with a machine vision detection system, conducts research analysis of definition, application, principle and hardware structure of this detecting technique,...

The detection of fraud payments is one of the primary problems for cyber-security of payment services. Among all services, the exclusive ones are the payment systems of central banks regarding their critical role for financial systems, sheer volume and number of transactions and increased attention from...

minium; There are many advantages of high purity alumina. hydroxide as raw material, through making ammonium aluminum sulfate as precursor, prepared high purity alumina after high temperature in this study. By adding ammonia to adjust the pH of the precursor in this experiment. make range of pH from...

Chloride and freeze-thaw cycles are two main factors which cause deterioration of reinforced concrete (RC) structure in the cold regions. In this paper, the process of chloride ingress into concrete exposed to freeze-thaw cycles is experimentally researched. From the experimental results, it appears...

The Polyethylene(PE)/rutile nanoscale titanium dioxide (nano-TiO2) composites was prepared by compounding of PE and a modified rutile nano-TiO2 in a twin-screw extruder. Mechanical property and morphology of the composites were characterized by electronic universal machine and scanning electron microscopy...

Medical device is an emerging industry and also a combination of high complex technologies. Medical device is managed by the government with special regulations. In recent years, however, the sale of medical device fast increases. Marketing in this field, first of all to be eligible, and then have the...

The traditional power factor correction (PFC) LED drive power due to its input rectifier circuit for nonlinear circuits, can bring a large number of high frequency current to power grid harmonic, the rectifier bridge after large capacitor filter will reduce the conduction Angle of input voltage, reducing...

Phenolic foam with high flame retardation was prepared through intumescent flame retardant treatment with physical blending of ammonium polyphosphate(APP) pentaerythritol(PER) melamine(MIR). Test results showed that the phenolic foam achieves high flame retardation when APP/PER/MIR=4:1:0.5 (dosage: 25%)....

The world is becoming urbanized rapidly while the demand of urban construction land continues to increase, and the growth of urbanization will persist. Therefore,healthy and stable development of the city is particularly important.In this paper, we take Sochi for example. According to the Analytic Hierarchy...

Aiming at the problems existing in the fire disaster monitoring, such as lower automation level, the detection point difficult to change and expand, and lower cost performance compared with similar monitoring products, etc., an intelligent monitoring system for fire environmental parameters is proposed...

This paper firstly summarized layering summation method which have been widely applied in calculating settlement of ground surface induced by dewatering in foundation pit, and then analysis the problem the method exist and put forward a new formula that embankment with pore through rate, which based...

The emergence of harmful gas will bring serious difficulties to the tunnel construction, improper handling can easily lead to accidents. In order to evaluate the possibility of harmful gas in the tunnel, the basic characteristics of harmful gas in tunnel are analyzed from three aspects, that is spatial...

An orientation distribution function is applied to describe the orientation distribution of polymer-fibers composites in shear-ellipsoidal extensional flow. And a mathematical model is established to simulate orientation distribution in this flow. Furthermore, the analytical solutions of differential...

Ultrafine particles PM2.5 produced during combustion is the main source of environment pollution and has raised the widespread concern around the world. There are several studies about acoustic agglomeration currently, but its removal efficiency is not high, so the scholars have proposed to join the...

A small four-rotor UAV transmission line inspection system is designed, which not only can cruise and avoid obstacles automatically, but also can be controlled with the remote. The system carries out data collection of transmission lines by the camera module, makes use of FPV technology to realize the...