Advances in Engineering Research

A method of on-line measurement which is based on a loser displacement sensor to measure external profile of non-circular piston is proposed. Measurement coordinate system is established on the basis of the reference cylinder. Measurement data is processed through least square method to achieve the actual...

Base on the problem that during the moment of ignition, electromagnetic environment in vehicles could cause interference to the stability and reliability of vehicle fire protection system, causing failure of the fire-prevention function. In this paper, the interference mechanism and harmfulness were...

Every year the growth of the number of people in Indonesia continues to increase, then this situation is not accompanied by a safe, convenient, and nearest parking location to the destination location, this is what triggers a number of problems that develop in the community. Due to the increasingly dense...

One of the oxygen generators is a Pressure Swing Adsorption (PSA) machine which is intended as a central oxygen-producing source on a smaller scale by a concentrator machine. Oxygen from the PSA device will be flowed to the patient through the terminal on the patient’s bed or flowed to an oxygen cylinder...

Grid electricity costs and tariff volatility place heavy pressure on large campuses in Ghana. This study develops and evaluates a 1.3 MW (DC) grid-connected rooftop photovoltaic (PV) design for a public university and quantifies technical yield and financial performance using HelioScope simulations with...

Microservice architectures have brought agility to an unprecedented level at scale, and have at the same time created a fundamentally new attack surface, making traditional security models irrelevant. The present paper presents the concept of the Agentic Context-Aware Security Framework (ACASF), a new...

The Sigli - Banda Aceh Toll Road passes through an area where the subgrade consists of soft soil. Geotechnical issues usually arise that settlement over a relatively extended period, which can damage the structure constructed above it. One of the improvement methods for soft soil problems is a Prefabricated...

Mercury contamination in natural gas systems presents dual hazards: compromising human health and corroding critical transmission infrastructure, ultimately jeopardizing the operational stability of gas purification facilities. Accurate prediction of mercury absorbent service life is therefore essential...

In order to further explore the study of earth-rock balance planning of pumped storage power station, it provides a reference for the selection of conversion coefficient of fill material and utilization coefficient of excavation material in subsequent pumped storage engineering construction. Taking Zhejiang...

Many factors influence the strength of concrete, including the quality of the materials and admixtures used, the composition of the materials, the method of manufacture and curing. Therefore to achieve the design strength of concrete, it is necessary to conduct aggregate inspection, use suitable admixtures,...

According to the design requirements that the operating rod should provide a sensing capability to make the operator at the remote end be personally on the scene, in this paper, we propose a force feedback operating rod equipped with 3-RRR spherical parallel mechanism as the basic configuration by analyzing...

SOS (Silicon on Sapphire) high temperature pressure sensor is a kind of strain pressure sensor with high performance. Since the sapphire has excellent properties in chemical stability, corrosion resistance, radiation resistance etc., the SOS high temperature pressure sensors are widely used in the industries...

This paper presents a new method of rehabilitation workstation for hand dysfunction. It has functions as follows: hand dysfunction diagnosis, assessment of disability, physical training. With the assistance of cyber gloves as well as hand strength training devices designed by the present authors, this...

SCADA (Supervisory Control And Data Acquisition) system is a computer-based automation system applied in operation process control and remote scheduling. This paper introduced the principle and method of security assessment based on SCADA system. Three basic elements of security assessment, asset, threat...

From the modeling operator, we derive its adjoint operator which is used to migrate 3-D poststack data. It forms a theoretical foundation for the reverse-time migration. The method would be helpful to get a new way to improve the result of conventional reverse-time migration. The inference of the adjoint...

A new metal detector is designed.Using LDC1000 digital inductance sensor and self-made coil as the metal detection sensor, based on eddy current principle. When the metal near the coil, because of the mutual inductance, the LC oscillation circuit's frequency changed, the changed frequency can be converted...

In recent years, computer systems are widely used in the modern Chinese part of speech tagging. Modern Chinese part of speech tagging is a basic subject in the natural language processing. It is widely used in machine translation, natural language understanding, establishing of the Chinese corpus, information...

In this paper, fractional reaction-diffusion equations are used to model the diffusion of PM2.5 in the air. First, based on the shifted Grünwald formula, we propose the fractional Crank-Nicolson method to solve the fractional reaction-diffusion equations. Then we prove the existence and uniqueness of...

The aim of the study was to develop Flat Plate Collector (FPC) from the locally available material in the market for the purpose of solar water heating. The efficiency of the collector was tested with the normal flow of water under ambient temperatures of 25oC for the consequently months of the year....

with the rapid development of computer and multimedia, physical education is also in line with the trend of the times. The purpose is to promote the application of multimedia technology in the teaching of physical education. In this paper, the definition of computer multimedia technology, multimedia...

Double Rotor Motor Power Coupling System (DRM-PCS), as a new kind of power coupling system, can be used in hybrid electric vehicle to make the engine operate efficiently by decoupling the engine speed from the wheels. In this paper, the thought and method of the engine optimal control are put forward....

Graphitized steel in some cases, due to its intermediate position in composition and properties between low-carbon steel and cast iron, can provide the necessary combination of properties of structural material. They are successfully replace ductile iron, carbon and low-alloy steel in the manufacture...

The paper describes results of the study on polybutylene terephthalate and polybutylene terephthalate-polyethylene having high chemical resistance. The article shows the dynamics of changes in values (Ap), (Ey), (?t) (?p), (?p) depending on the composition and exposure time under unloading which is close...

The analysis of reform and practice of excellent course of the power system, follow the outstanding project, strengthen the practice of the principle of teaching in ideology, system, teaching contents and methods and improve the quality of teachers made a number of reform and practice, has gained valuable...

The truss is a key part of a Ferris wheel system and affects the safety of the entire Ferris wheel system directly. This paper proposes an analytical method based on failure modes, effects, and criticality analysis (FMECA) and a fuzzy evaluation method for evaluating the risk level of the trusses of...

At present, the research on the operational application of Swarm EW UAV(S.E.U) is focused on the combat theory and qualitative analysis. First, this paper analyzes the operational advantages of S.E.U, then studies the operational process of S.E.U, gives the flow chart and analyzes the OODA loop. Finally,...

At present, the active defense strategy based on game theory is based on the complete information game model. For such model cannot cope with attackers and defenders do not know each other's behavior problems, based on the cooperation, and incomplete information game theory is proposed to improve the...

Length-weight relationship (LWR) species Epinephelus fuscoguttatus Forsskål, 1775 by gender (male and female) were collected from September 2016 to June 2017 in Bobong Taliabu waters, North Maluku, Indonesia. Fish captured using bottom trap, size 80 x 60 x 35 cm with mesh size 5 cm. LWRs of significant...

This study aims to provide empirical evidence about the strategy of freemium software which is a new business model in the digital era by applying the Dual Mediation Hypothesis (DMH Model) to investigate the effects of the freemium strategy as a promotional tool to increase user interest in purchasing...

Hydrogen-based energy systems are increasingly explored as low-emission alternatives to fossil fuels, with oxyhydrogen (HHO) generators emerging as compact, on-demand hydrogen providers for automotive and small-scale power applications. This review synthesizes findings from forty-three studies comparing...

The implementation of a school education management information system (MIS) will help ensure the continuity of the learning process in schools. School education MIS provides information to support school management decisions, assist the academic process, and distribute information to parents and the...

There is a growing need to analyze the contents of ecommerce and micro-blogging platforms in order to determine consumer satisfaction as the number of online forums for providing comments on different features or goods grows. To get a sense of how customers feel about their products, service providers...

Oxidation tests were performed in water vapor at 590 °C by mass gain to study the oxidation behavior under working conditions of TP304H steel, which is a new alloy steel used for overheaters and reheaters in high–parameter boilers operated in thermal power stations. The microstructure was observed in...

Display device is very important equipment in the instrument.LED display have limited in complex driving circuit high dissipation big size. In order to resolve this problem, A segments LCD drive circuit is introduced, which based on ultra-low-power MSP430, using the built-in LCD controller, can drive...

Polymethyl methacrylate (PMMA) has been commonly used to manufacture polymer microfludic devices owing to its advantages such as low cost, biocompatibility and optical properties. The forecast regression model of surface roughness is constructed for micromilling of PMMA by the least square method. Surface...

With the development of science and technology in the society, the electrical engineering has accumulated the experience for more than 100 years, which provides the strong protection for the progress of human science and technology. The role of electrical engineering has been irreplaceable from the steam...

Based on the engineering projection against multiple impacts, the test of anti-multiple impacts was carried out towards UHMWPE fiber reinforced concrete, in which five kinds of fiber volume fraction (0%, 0.3%, 0.5%, 0.7% 1.0%) were designed. The damage patterns were analyzed and the penetration depth...

First of all, the paper starts with present situation of foreign assets common benefit mechanism of tobacco farmer cooperatives, proposes a theoretical framework using structural equation model. The empirical analysis on effective sample of 262 farmers cooperatives finds institutionalization of financial...

Detecting the boundary of each cluster in a data set is a tough problem for many existed boundary detecting algorithms. In order to solve that problem, a clustering boundary detecting algorithm based on KNN and RKNN named CBDEC(Clustering Boundary Detecting Algorithm for Each Cluster: CBDEC) is proposed....

This paper studied the anti-cavitation performance of the high velocity oxy-fuel(HVOF) Ni60 powder coating by experiments, and compared the anti-cavitation performance of 2 kinds of powder coating-HVOF Ni60 and HVOF NiCr, and compared HVOF Ni60 powder coating with oxyacetylene flame spraying Ni60 powder...

Many factors can affect the telephone traffic of power supply service center. And telephone traffic forecasting would help to estimate the population size, make schedule analysis and copy with the sudden situation. We use some province data of 95598 call center as an instance to analyze factors using...

In order to discuss whether the investment system reform improve the investment efficiency of Chinese state-owned enterprise since reform and opening-up, considering the nature and function of state-owned enterprises, the this paper constructed the investment efficiency evaluation system of stat-owned...

Lip segmentation and key point extraction from human mouth image are essential steps in lip-reading applications. In this paper, a method is proposed to improve key point extraction. First, mouth is detected according to the structure and proportion of the face. Second, two corners of the mouth are detected...

To solve the conflict between the radar range and distance resolution effectively, this paper design and realize a method of pulse compression of radar system. Firstly, the paper describes the working principle of pulse compression. Then a method of pulse compression simulation is designed based on chirp...

Using silane coupling agent and ammonium zirconium carbonate to modify heavy calcium carbonate separately. Experiments show that using modified calcium carbonate as a filler made of significantly higher than filling in terms of the physical strength of paper. Under 40 ° SR condition, after 1% ammonium...

The effect of adhesive thickness on the vibration features of the steel disc was investigated by the modal analysis, buckling analysis and static analysis based on the practical application. The results from the elasto-plastic finite element analysis show that the natural frequency of the structure is...

Referential integrity refers to data integrity between two tables, in the process of software development, if cannot ensure referential integrity, will result in disastrous consequences for data. In this paper, based SQL Server database management system designed on the trigger of audiovisual product...

SAPERE is a general multiagent framework to support the development of self-organizing pervasive computing services. One of the key aspects of the SAPERE approach is to have all interactions between agents take place in an indirect way, via a shared spatial environment. In such environment, a set of...

With the advent of the big data era, the application of big data technology in the railway industry is becoming more and more widespread. Through the analysis and application of big data, the management level and economic benefits of the China Railway Corporation can be effectively improved. In order...

This paper deals with the reconstruction of generalized Jacobi matrices from eigen-pairs of the matrix and its complementary submatrix of give up k row and k column. The paper discussed the existence and uniqueness of the question's solution. The possibilities are exanimated by numerical example.

Intelligent community's streetlight can't achieve remote monitoring, based on this problem, the remote monitoring system is designed for intelligent community of streetlights, the MSP430 micro-controller is as the core controller, the detection circuit can automatically determine that streetlights is...

Resilience often refers to a property of social and ecological systems, recently, resilience is applied to the engineered system, referring to their capability to recover the state after original state degrade from external disturbance. In this paper, a resilience metric is proposed corresponding to...

The basic problems of blind persons in doing independent activities from one place to another are the mapping of trips to go and home navigation. The use of the conventional, electronic stick or previous research is still lacking. The results of research on localization of positions and mapping for inside...

The energy crisis will be come soon and one of the very potentials of renewable energy is the energy usage of water for micro hydro power plant (PLTMH). A centrifugal pump is used for water turbine from the pump channels. The purpose of the study is knowing the influence of modelling the geometry on...

Application and usage of technology has gradually increased in every sector. The design of an electronic system using hand gesture is an innovative user interface to control many electronic appliances. Hand gesture recognition system has come into picture in the recent few years because of its enormous...

Crude palm oil (CPO) is the result of the production process of processing palm oil from fresh fruit bunches (FFB) of oil palm plantations. CPO is referred to as crude palm oil which is refined to become frying oil for public consumption. The process of refining CPO to become frying oil is carried out...

With the increasing importance of cooperation between garment enterprises and garment supply chain management become the preferred way of collaboration between enterprises management. Cloud computing management way to promote the garment supply chain to make today's market competition has gradually become...

In order to improve the multimedia animation rendering speed, for the purpose of aiming at the shortcomings of the Maya bring renderer speed slow, from the viewpoint of "agency rendering", combining with mental ray using the geometry shader, from the material of model, the surface model,comparative study...

According to the construction requirements of State Grid Corporation substation condition monitoring system, the on-site monitoring data of the station is connected to the main station system of the state evaluation center, and the evaluation of the primary equipment is completed. However, the early...

The existing coarse-grained monitoring mechanism in Spark has much difficulty in analyzing and locating the bottleneck during the execution of tasks. Aiming to solve this problem, we divide the execution process of Spark tasks into several subphases, and propose a fine-grained subphases-based monitoring...

The increasing heavy metal pollution in the sugarcane soil along the Huanjiang River was caused by leakage and spills from Pb and Zn tailing dams during a flood event.A 12-month experiment was conducted in the farmland with contaminated soil to evaluate the potential of sugarcane for remediation of soil...

A key scheme based on multi-dimension location is presented for heterogeneous wireless sensor networks (HWSNs). The wireless sensor networks consist of some nodes that have greater power and transmission capability than other sensor nodes. All kinds of nodes are deployed evenly in sensing space. The...

40Cr steel diesel engine connecting rod were quenching and tempering by waste hate after forging and its mechanical properties were studied. The results showed that comparing with traditional technology, the forging-remnant-heat quenching and tempering technology route for 40Cr connecting rod of diesel...

Recent years, with our economy sustained and fast development, environmental problems become increasing serious, especially for air pollution problems. Smog problems are intruding more and more big cities. Improving air quality has become an urgent demand of city development. This paper proposed a spatial-temporal...

Constraint-variable correlation is the most important coupling correlation in unit commitment problem. Reasonable arrangements for the correlation will simplify the model complexity, and reduce the calculation time. And minimum on/off time constraint is one of the most complicated time coupling constraints....

The application of carbon nanotubes (CNTs) in biomaterials field was limited by its poor dispersion in water solution. In this paper, a specific methodology based on potassium permanganate (KMnO4)/concentrated sulfuric acid (H2SO4) hydrothermal oxidation was used to modify the surface of multi-walled...

Based on the description of ground penetrating radar (GPR) data processing and interpretation, this programs solve the recognition and conversion of GPR original data and display the GPR field data. The programs eliminate the built-in post-processing software reliance on software dongle. The conversion...

Parameters selection plays an important role in the model updating and a good parameters selection improves the efficiency of model updating. The sensitivity and the significance method are widely used for parameters selection. The theory and application are researched. A real structure was selected...

At present, there are many methods to improve the compensation performance of active power filter (APF). However, to improve the reliability of APF, dead-time between two IGBT switches in the same bridge must be set large enough to guarantee the IGBT operating safely, which will impact the output performance...

This paper aims at researching on multi-factorial risk coupling effect on construction schedule of large construction projects. Combined with related data of construction industry in China and with the means of model and Matlab simulation, the paper has got the effective value of multi-factorial risk...

The inversion of aerosol optical depth (AOD) of Beijing in each four seasons of 2014 year was carried out in this paper. The results show that, in seasonal distribution, the AOD of Beijing city was lower in winter and spring, stable in summer and autumn. In spatial distribution, the AOD is large in the...

a sprout layer-rack aeroponic cultivation device has been designed to solve the problems of low space utilization rate, large consumption of irrigation water, unbalanced growth amount and low automaticity in sprout production. SolidWorks has been employed to build 3D models for spare parts and the overall...

Given the basis that there is no perfect theoretical of the simple and practical geotechnical elastoplastic model which has been set up, triaxial compression test results cannot provide elastic-plastic analytical formula. This article embarks from the basic definition, according to the variation characteristics...

Under the background of eco-economic development, enterprises are under the pressure of sustainable development exerted by multiple stakeholders and it is imperative to establish a model of eco-economic development of enterprises. It is essential for enterprises to build a eco-economic development model...

Multiple tags collision problem severely degrade the identification efficiency of an RFID system. As a mainstream RFID anti-collision algorithm, deterministic tree-based algorithm can guarantee that the reader correctly identify the tags within its coverage range. In order to overcome the shortcomings...

With the rapid growth of global trade, more and more foreign trade processing companies, enterprises have put forward new requirements for technology and management, and logistics management and control integration has received more and more attention. This article through field research on the SX company's...

When the moist cohesive soil is excavated, the soil sticking and freezing to the working units of the earth-moving machines take place, which considerably reduces their efficiency. There are four main groups of methods intended for eliminating adhesion of soil to the surface of the working bodies of...

A high-temperature MEMS pressure sensor with integrated temperature compensation and signal-conditioning circuits is reported in this work. The paper introduces the design and fabrication of the sensor, including the pressure-sensitive chip, the temperature compensation method, the signal-conditioning...

"Beautiful rural construction" is a systematic project, rural energy is one of the important contents of its construction. In accordance with the concept of eco-friendly construction, Beijing carried out a thorough "structural adjustment of rural energy optimization," "Earthquake energy-saving projects...

Considering the traditional A*algorithm being difficult to satisfy the limitation of the indoor environment space of the robot. A partial and global A-Star (P&G-A*) algorithm based on the motion model of indoor robot is proposed. LIDAR sensing system is employed into P&G-A* algorithm to achieve both...

Based on observations, there were some students who felt sleepy or were not interested in the materials being taught, even though the presenter had prepared good presentation and explained it coherently, especially in engineering subjects. Therefore, tools in the form of learning media are needed. This...

In the manufacturing industry, high production flexibility is crucial. The Computer Numerical Control Training Unit (CNC TU) 3-axis machine enables large-scale production through computer automation but still requires skilled operators. A lack of operator expertise can negatively impact production efficiency...

Quality of service and promotion is one effort to increase buying interest. With the existence of good service quality and promotions that are in accordance with the targets, a company will achieve the goals that have been set. South Sumatera LRT has carried out good service quality and promotion, as...

Technological advancement affects a country’s social, political, and transportation development. Operating system, facilities, and infrastructure all use modern bus technology. Therefore, valid data about bus passengers is needed to optimize facilities and passenger numbers. This research involves developing...

Mayuan Pb-Zn ore deposit is tectonically located in the southeastern margin of the Beiba Arch in the northern of Yangtze Plat. Its orebodies occur in the Upper Sinian Dengying Formation dolomite. Sulfide minerals are selected from the deposit for sulfur and lead isotope compositional analyses. The 34S...

The test requirements and evaluation criteria for efficiency of EV motor drive system were briefly introduced basing on China national standards. Then the difference of efficiency performance was analyzed using data collected from real road condition and test bench. From data of test bench,a pre-evaluation...

During the process of natural gas hydrate drilling, hydrate cuttings will decompose at a certain position, which promotes the formation of complex multiphase flow in annulus. Aiming at this, dynamic model of hydrate mass transfer decomposition is established considering temperature and pressure. On the...

Opportunism behavior is an important factor that affects the outcome of a construction engineering project. But this factor is often ignored in the field. This paper studied the effect of opportunism behavior on construction engineering projects based on evolutionary theory. Firstly, this paper explained...

The failure rate of it will increase with the increase of the system running time, the traditional periodic preventive maintenance can meet system failure characteristics, so improving the safety of gas pipeline and searching the system elastic maintenance period mode have the important practical significance....

The paper studied the running characteristics of air-source heat pump assisted solar water heating system. The results showed that the temperature of hot water could reach 32 , 42 and 57 respectively, when the daily total radiation was 9.79 MJ/m2 15.58 MJ/m2 and 21.42 MJ/m2. Under the radiation of 15.58...

The article outlines the transition from analogue to digital protection for DC traction network, selection methods of protection and their settings. The first trial uses results, suggestions for further enhancements of adjusting methods, using monitoring and increasing the level of automation and mathematical...

The cyclic oxidation behaviors of Fe-15Cu alloys with different Al concentration at 800 oC were studied. The oxidation kinetics showed that the oxidation process of Fe-15Cu alloys followed the parabolic law, Fe-15Cu-5Al alloy was oxidized more seriously than that of Fe-15Cu-15Al alloy. Analysis of the...

In this paper, one type of multi-tower CSP power plant’s instrument configuration and function for heliostats, solar thermal receivers, steam and water pipes is presented. Wireless instrument and wireless network configuration are developed based on the character of the instrument configuration. Each...

Distributed generator is often associated with the existing distribution network system, the study of the impact of the distributed generation on original distribution network system is very important for the development of the smart grid. The study on the voltage can contribute to the safety, reliability...

The problem of pedestrian across the street during the red light is always a focus of China's urban traffic management and difficult. This phenomenon has been improved after years of renovation in some developed cities such as Beijing. However, in some middle-sized and small cities, the problem of pedestrian...

Systematically introduce the research situation and development trends of the analysis method of slope stability at home and abroad, Focus on the two kinds of calculation methods and critical slip surface searching method based on the limit equilibrium theory and numerical analysis, And it also briefly...

Because of the recent development of wearable electronic and smart textiles, the conductive yarns, fabrics and electrically heated garments have been widely studied and applied in many fields. This research is primarily concern to improve the conductive yarn quality with designed a new automatic machine...

For urban rail transit enterprises, estimation and forecast of operating costs is important reference basis to keep runinng well, and it is also an effective means to maintain the sustainable development. In this article, firstly, a framework of calculating the urban rail transit operating costs will...

This paper explores the impact of solution copolymerization of hydrophobic monomer (MMA and VAc) and hydrophilic monomer (AA and MAA) on casting membrane solution and PVDF membrane. Through experimental results and representations, it shows that, with NVP content proportion in monomer decreases, the...

Sepakung Village is a tourism village in the rural area of Semarang Regency which provides various farm products such as rice, coffee, brown sugar, vegetables and processed product, Sepakung Village-specialty pegagan leaf (Centella asiatica) chips. In the production chain of pegagan leaf chips, one of...