Advances in Engineering Research

The paper deals with analysis and modelling of a new type of single-phase supplied AC/AC converter with two phase outputs. It consists of one-leg half-bridge matrix converter loaded by the resistive-inductive load in series connection. As harmonic analysis of the voltage of both phases gives very high...

Boron nitride intumescent fire retardant coating with borax and melamine as the main components was experimentally studied. The formulation of coating was designed by orthogonal experiment; fire resistance time was tested in the intumescent fire retardant coating testing furnace; the micro-structure...

In the current transportation, the ship is a very important means of transport. Although the water transport traffic has unparalleled advantages of other traffic, the ship accident is also happening. Therefore, ship collision avoidance has been the core of research in various fields. This article uses...

In this paper,we analyzethe problems of current congestion control algorithm based on TCP protocol and UDP protocol for transmitting multimedia stream, and proposed an improved multimedia stream congestion control algorithm DAIMD.DAIMD adoptTCP-like congestion control algorithm to transmit multimedia...

This article describes a relational database for the ultimate data storage management model, through the establishment of a multi-dimensional data storage management support module between the data management and relational database, users achieve multidimensional data objects and storage management...

The partially stabilized zirconia ceramic samples were fabricated using MgO stabilizer. The solid solution and migration process of stabilizers in zirconia grains under working temperature was studied by XRD, SEM and EDS. Results show that after 1710 °C×2 h sintering, MgO stabilizer in the sample didn’t...

The total organic carbon content (TOC) is an important parameter for source rocks evaluation in coal measures. Total organic carbon content determined from logging parameters using back propagation neural network technique, which provide a new method for hydrocarbon source rock evaluation. Use the Turpan...

With the improvement of person's health consciousness, exercise time corresponding increase, more and more people are favour of outdoor fitness facilities, new demands to outdoor fitness facilities come up. Though the investigating and analyzing user's feelings to current outdoor fitness facilities and...

In this article the importance of using superconducting technologies in power industry together with SMART GRID, based on the analysis of program documents and scientific works, has been done, which will allow the maximum extent to solve its problems. The physical principles of contactless suspension...

Seismic control of the horizontal and torsional response by cylindrical tuned liquid dampers is studied. The hydraulic pressure model of the cylindrical TLD including pulse pressure and convection pressure is established by membrane analogy method. The torsional model of the cylindrical TLD is obtained...

With the enhancement of public awareness of food safety, the rapid detection of edible oil and other oil is in great need today. Using the relative dielectric constant difference among various oils and considering the effect of temperature on oil property, an instrument for rapidly detecting and identifying...

At present, the broadcast of PM2.5 can’t be accurate to all the spot of the city. This paper discusses a new method to draw the distribution of PM2.5 of a city by using mass data provided by the monitoring stations, which can be accurate to all the spot. In order to solve the problem efficiently, we...

An aqueous solution containing deionized water, cobalt nitrate hexahydrate (Co(NO3)2•6H2O), ethylene glycol (EG) and urea (NH2CONH2) were reacted in an autoclave with hydrothermal reaction method at 180 oC for 20 h to generate precursors with 0.1%, 0.2%, 0.3%, 0.4% and 0.5% of La (NO3)3. Then the precursor...

The spontaneous internal short circuit is a very important way for the thermal runaway of lithium-ion battery. Identification of the internal short circuit accurately and in time during the working process is critical for the safety of lithium-ion battery. In this study, a modified algorithm for the...

Agroindustrial complexes are built in a technological and geographical binding to the sources of heat and electricity. In the absence of the possibility of connecting to the central distribution heat and power networks in the investment project, proposals are made for the construction of a source of...

Land cover detection change is significant for planning and managing an area. The condition of an area should be analyzed to observe human activities that influence environment and thus it is important to simulate land cover changes. Land cover can be effectively monitored by remote sensing technique...

A system dynamics model is established based on the analysis of main factors and their relationships in the railway passenger transportation system. The causal loop diagram, flow chart and the Structural equations were established, and relevant parameters are determined. The model is verified by comparison...

An anti-collision structure for bridge piers made by waste containers is proposed in this article, which including waste containers and filling. The top of container is cut and removed, a number of containers arranged with different styles on the main route of rolling stones and in front of the bridge...

Industrial waste gas contains a lot of harmful substances, and in the process of waste gas treatment, dust removal and desulfurization are two important links. Current netease blockage of dust removal equipment, dust removal efficiency is low, because use spray desulfurization in desulfurization device...

Electric Railway (KRL) is the backbone of public transportation in Jakarta. But KRL share capital is still 4.1%. Therefore this paper seeks to reveal what characteristics play a role for travellers to use KRL regularly or temporarily. The study was conducted in October 2017 at several Jakarta KRL stations....

Objective To analyze the nursing management of amiodarone hydrochloride injection in patients with tachyarrhythmias during intravenous injection. Methods Forty-six patients with tachyarrhythmia treated with amiodarone hydrochloride in our hospital from April 2014 to April 2015 were enrolled in this study....

Analytical model of interface deformation behavior during rolling process was established to investigate the principle of sausaging formation, and formula involving the geometric parameters and physical properties of silver layer was derived on the basis of energy approach. Moreover, the curvature difference...

This paper proposes a hierarchal approach to solving a spraying mission assignment and path planning problem by using multi-quadcopters in an upland area. A mathematical model of the mission assignment and path-planning problem has been established. An inner-and-outer loop structure is employed in the...

Glulam-concrete composite beams can be a solution for bridge construction with the principle of flexible beams, where the stress must be designed with the upper fibers to withstand the pressure and the lower fibers to withstand the tension. In this case the compressed area is held by the concrete slab,...

One of the most important factors of the sustainability of the system of social, economic and environmental parameters that determine the quality of life of the population and indicators of the effectiveness of regional management is ensuring energy security. Today, the introduction of a trend towards...

Recent technological advances offer significant promise for enhancing architectural practice through the Digital Twin paradigm, which constructs a continuously updated virtual counterpart of physical assets to facilitate persistent, data-driven oversight, synthesis, and refinement. Conceived within the...

Hydrogen is an example of renewable and environmentally friendly future energy. Hydrogen as a fuel for emission-free vehicles has attracted much attention recently. The level of hydrogen purity greatly determines its use and economic selling price. Increasing the hydrogen purity can be done in two ways:...

BIM technology, leveraging its capabilities of 3D visualization and full lifecycle data coordination, has become a core tool for tackling complex engineering projects. However, existing BIM practices often face limitations such as disconnection between models and construction, inadequate support for...

The main need for the community is a house with an area of land that can meet the needs of the family. Residential floor can be extended vertically upwards which is a concrete floor slab. This can be fulfilled with a series of lightweight bricks reinforced by plain reinforcement which is a one-way slab...

Promoting energy conservation for buildings towards a state of ultra-low energy consumption and near-zero energy consumption has evolved into a top priority in the process of achieving the goal of “carbon dioxide peaking and carbon neutrality” in the building field. Conceptually, the goal of near-zero...

Increasing security in the natural gas distribution pipeline system is one of the essential requirements in the energy industry. To fulfil this requirement, in this study an Internet of Things-based Wireless Sensor Network was designed to improve the security system of natural gas distribution pipelines....

As tourist industry has developed rapidly in recent years, the proportion of tourist hotels in Chinese tourist industry increases gradually. The number of high-star tourist hotels increases stably. International major brands expand by a large margin in Chinese tourist industry, which generates certain...

At present, many large-scale consumer goods or food suppliers would receive a lot of feedback data from consumers, which is vital to the improvement of corporate management. Nevertheless, these data fail to be fully utilized or labeled manually piece by piece due to employees' poor skills or officers'...

The new inertia weight based on periodic linear change, repeat the change process from 0.9226 to 0.6226 until it reaches the maximum generation. At the beginning, the position of the particle change fast, when the given value is reached, the particle's position change with a fuzzy formula. Using the...

The Mesozoic-Paleozoic marine strata in the South Yellow Sea Basin have been regarded as the new targets for hydrocarbon exploration. In order to carry out the oil and gas resource evaluation in the Mesozoic strata, the condition of the cap rocks and the combination of reservoirs and cap rocks should...

The effect of uncertainty and its evolution with time on the system reliability design are investigated in this paper. The system design variables are modeled in Geometric Brownian Motions which using the drift rate and diffusion rate to describe the evolution-based uncertainty of variables. Based on...

The research of visible light communications(VLC) has became a focus of wireless communications in recent years. In this paper, the channel coding technique for VLC systems were studied. According to the characteristics of VLC channel, RS codes were designed to correct the burst and random errors. The...

In this paper, we give a class of new endomorphisms with some properties based on the concept of morphic endomorphisms, called generalized morphic. We discuss the connection between the generalized morphic and the structure of groups. It is proved that the quasi -cyclic group is a generalized morphic...

This article introduces the error comparison of the improved wind power forecast system which changes the data input and re-models and the original one, which was done in Liaoning Zhong San Jia Wind Power Plant. Throughout one year's contrast analysis in 2003, it is found that the accuracy rate has increased...

With the rapid development of China's national economy, the increasing trend of global economic integration is becoming more and more obvious. The competition of various industries is becoming more and more intense. As the pillar industry in China's national economy, the development of electric power...

The shortcoming of polycarboxylate superplasticizer could delay the early strength of concrete, this limit its use in winter. In order to satisfy the application of polycarboxylate superplasticizer in the early strength constructional buildings. TEA was introduced into molecular chain of polycarboxylate...

For new section of aluminium alloy members there are still not enough researches on the mechanical properties and mechanism of action. The nonlinear finite element analysis (FEA) was carried out to study the mechanical properties of new section of aluminium alloy members under axial loading. In this...

The article briefly introduces the harm of the uranium and the existence form of uranium in aqueous solution. Reviewing the research advances in recent years of chemical treatment of wastewater with low concentration of uranium, the article analyzes the main principle and advantages and disadvantages...

In order to determine the ages of magmatism and mineralization, and thus to disentangle the complicated magmatic evolution and the relationship between magmatic process and copper-molybdenum mineralization, the authors carried out a study of LA-ICP-MS zircon U-Pb dating of monzonite granite porphyry,...

In order to study the influence of fly ash content and desert sand replacement ratio on the static elastic deformation of desert sand high strength concrete, experiments on 28d static compression modulus of desert sand high strength concrete with different fly ash content and desert sand replacement...

We tested 8 plants and 3 medium and tested pottery spherical base, thus achieving the results.The green coverage for light media S2 (pottery spherical to sandy loam is 8:2) is suitable for Alpinia speciosa the best growth, followed is Zoysia matrella, with Duranta repens as the third. The green coverage...

Audio system has become an indispensable part in many products. On Linux 2.6 kernel audio driver is taken as a bridge to connect the audio hardware with ALSA audio subsystem. This paper described interface of ALSA audio subsystem and audio driver programming essentials in detail. Specially, PC audio...

Weibull distribution life prediction theory is proposed for analyzing fault diagnosis of scraper conveyor in this paper. The scraper conveyor of coal mining mechanization is one of the important equipments in coal producing process, which may be damaged in the operation of the equipment malfunction or...

In this paper, the sub-micro silica particles were prepared successfully by sol-gel method. The ammonia was introduced as a catalyst and silane coupling agent as surfactant. The impact of reaction temperature, ethyl orthosilicate (TEOS) concentration, the amount of silane coupling agent and the order...

In order to study the effects of different enzymes deactivation methods on the quality of seepweed tea, the enzymes deactivation methods such as pan firing, steaming, water bathing and microwave on the quality of seepweed were discussed. The results show that the temperature of the steaming increase...

An application of treating the landfill leachate by MVC-DI process is introduced. The leachate evaporation treatment system (MVC) of a landfill decreased by 70% in the treatment capacity, and the effluent quality was not up to the discharge standard. The hot-running test, the cold-stop detection and...

In paralleled grid connected PV inverters system, when the design of the inverter control system is connected with the weak grid, the control performance will become poor, and even the operation is not stable. In this paper, a method of impedance analysis is presented, and the equivalent impedance of...

The trajectory tracking control is performed for the kinematics model of the mobile robot. The switching term of the traditional sliding mode control law function contains the symbolic function. Because of its discontinuity, it is not suitable to use the switching function in the derivation occasion....

This research aim for measured success train ecopreneurship college student through design game as a learning medium chemistry on game media course chemistry. On media courses game of chemistry, college student divided in groups given task project for compile plan ICT game as a learning media of chemistry....

Innovation is the source of a nation’s power, and the proposition of innovation strategy has guided the direction for national economic development. As to Shandong Province, how to enhance the provincial comprehensive strength and improve innovation efficiency is a problem worth discussion. Analyzing...

In order to evaluate the effect of residential area open to the road traffic, we select an initial evaluation indexes with domestic and international traffic management standards at first. Then, since the requirements of distinct cities are different, we choosing Shenzhen as the direct study target....

Three strain of high efficiency 1, 2, 4-trichlorobenzene-degrading bacteria was screened out from the activated sludge under low temperature which was named a, b, c. According to morphological and physiological observation, strain a was identified as Achromobacter sp., b was Acetobacter sp., c was Archrobacter...

The material properties play an important part in evaluating the structure integrity of the solid rocket motor gain. Based on the structure integrity analysis of perfect solid rocket motor grain, the computational models are established to assess the effects of material parameters on it. Under the internal...

With the rapid development of nano materials, it becomes a new material science. Aiming at the application of nano materials in concrete, this paper briefly introduces the nano material and analysis the mechanism of the effects of nano materials on the properties of concrete. Meanwhile, the research...

This paper presents a new time integration method to solve the kinetic equations with geometric nonlinearity considered, by combining the Newmark integration method and Newton-Raphson iteration method. In this method, the Newmark method is used for the time history integration and the Newton-Raphson...

It is an important core issue in social networks to divide community or group. And, the network node is the mainstream of community division algorithm as the processing object to divide the network. This paper introduces the entropy theory into social networks partition on the basic of studying the concept...

In this paper, multi-harmonic bilateral pull is used to design power amplifier(PA) fundamental and harmonics matching networks. By combining with continuous Class-F operation mode to realize high efficiency with broadband. And large signal dynamic device model is used in multi-harmonic bilateral pull...

In the framework of the study is justified the cost and labor intensity of innovations in the field of biotechnology as a need to integrate a large number of economic entities into economic phenomena. Serious shortcomings are revealed in the field of the architecture building of innovative clusters....

Coconut shell was used as a precursor to prepare activated carbon using potassium hydroxide (KOH) as a chemical activating agent for carbon dioxide (CO2) adsorption at ambient conditions. The purpose of this study was to determine the optimum activation parameters of the activated carbon using Response...

Indonesia is the largest archipelago state is therefore also called Nusantara. Almost every region in Indonesia has a characteristic landmark that describes each area that has tremendous potential in form of lore and attraction. The tremendous potential of this must be backed up with a nice introduction....

The finance industry, especially banking, is an industry that is often used by the public to make transactions. Banking is one of several business lines in the financial industry. Many industries in Indonesia are under pressure because of the Covid-19 pandemic, many cases have been confirmed by new policies...

Technology development and various needs to help humans work without increasing the risk of human safety. One of these technologies is the Unmanned Aerial Vehicle (UAV), commonly referred to as a drone. UAV technology is required in various sectors, both civilian and military. Therefore, research was...

In the field of power infrastructure construction, the comprehensive adoption of mechanized construction has become an inevitable trend in industry development. However, traditional mechanized construction plans, which heavily rely on human resources and expert knowledge, face challenges in improving...

A robotic arm is a device designed to emulate the functions of a human arm and execute many activities. This article carefully examines the essential principles that regulate robotic arms, including mechanical structure, motion control, and path planning. We classify modern robotic arms into three primary...

TBM (Tunnel Boring Machine) is commonly used in hard rock subway tunnels. In double-shields mode, the construction speed is fast, but in some special periods, it is necessary to switch to single-shield mode. This paper describes the working principle of TBM in different shield modes, and comparatively...

In recent years, urban road traffic is frequently affected by various abnormal events, which not only damage the traffic facilities, but also have an impact on the operation of social economy. Therefore, it has become an important research direction to explore the resilience of urban road traffic, identify...

In this paper, a new pattern sticky and waterish material dryer mainly consists of tossing mechanism, hot air distribution system, and feeding and discharging device. Material is scraped off and crushed by tossing mechanism with high speed rotating spiral sheets. Hot air is redistributed to improve the...

This paper has designed a new type of coupling disc structure for the diesel generator set, eliminating the “seams” in the section die. It also has focused on the modal analysis by using limited meta-simulation software, discussed the optimum stiffness structure, and analyzed the related causes of normal...

In this research, a novel and facile method for preparing organic-inorganic hybrid microspheres was developed by a synergy of membrane emulsification and biomimetic mineralization. The gelatin solution (water phase) was extruded through a Shirasu Porous Glass (SPG) membrane, and mixed with the liquid...

In order to reflect the randomness and uncertainty of geomaterials, it is essential to study the probability model of geotechnical parameters. Based on normal information diffusion principle, a probability model deduction method for geotechnical parameters was presented in this paper. Taken a set of...

NVH characteristic is to study how to address and reduce the mechanical operation of the noise, vibration and comfort issues. In recent years carried out against mechanical vibration and noise control technology for the latest development and trend Survey, the development of NVH technology, research...

In this paper, the indoor experiment of AC-16 rubber particle asphalt mixture was studied. Mix design method of mixing amount of rubber particles asphalt mixture for 3%, two kinds of rubber particles with different gradation were used for the experiment. The rubber particles were mixed into the mixture...

There are two major drawbacks in traditional software development process, to follow the database as the core of the software development pattern, it is difficult to achieve a high degree of flexibility of the system and meet the changing requirements of reconstruction. And domain software with complex...

Tonghua Baishan area formed a large number of precious characteristic literature because of its special geographical position and historical reasons, long-term accumulation,such as Gao Gouli characteristic literature, Manchu Shaman characteristic literature etc.. According to the features of native form...

The living anatomy of the vestibular end-organs is still unknown, complex, and studying them is a challenge for researchers in basic science and in clinical medicine. This main reason is the fact that we cannot observe the vestibular end-organs in the living subjects by any modern diagnostic facilities...

Effective build assembly deviation transfer path is the basis for fast and reliable assembly precision prediction, for which proposed a deviation transfer vector loop construction method based on assembly constraint. First datum reference frames, reference path, assembly connection point and other parameters...

The aim of this study was to evaluate the effect of biogas slurry inoculation on semi-dry anaerobic co-digestion of swine manure and rice straw, focusing on biogas production and kinetics. Biogas slurry from digested swine manure was applied as inoculum, and the effect was evaluated in batch reactors....

High-speed economy development has been overtaking the environment and environmental accounting in china. A detailed chart of the integration of different parts of two extensive knowledge (Accounting and Environment) can help greatly to the understanding of the environmental accounting. This chart, synchronized...

Fatigue failure is one of the main reasons for the engineering structure's failure, and it is of great significance to predict fatigue life of structure. This paper briefly introduced the principle of stochastic fatigue failure calculation analysis, andÿanalyzed random vibration of aÿT-shaped structure...

With improvement of computer technology and digital technology level, the superiority of numerical control technology application in machine manufacturing gradually stands out. Numerical control technology optimizes equipment effect and quality, promotes market competitiveness of enterprises and drives...

Double-joint strain insulator fittings are the main equipment substations. It is great significance for reducing its maximum electric field strength to avoid corona noise and to improve substation electromagnetic environment. Firstly double-joint strain insulator string fittings simulation model is given...

This research used orthogonal testing methods to study the effect of stimulator content on the properties of carbide slag (CS) cementitious materials. Range and variance analyses reveal that different stimulators do not significantly affect the consistencies and setting times of these cementitious materials,...

This paper comprehensively adopted the Geographic Information System (GIS) and Participatory Geographical Information System (PGIS) technologies to construct the Jiuzhaigou Nature Reserve's landscape service index system and analyzed the landscape service spatial characteristics. The results show that...

The piston transient-state temperature measurement is very important for engine design and performance improvement. A memory test system (MTS) was designed for piston transient temperature measurement. Its transient error was inspected by a transient response test. Considering poor working conditions...

In order to reduce the emission concentration of solid particle, the 1# unit of Guohua Sanhe power plant has carried out ultra-low transformation: low-temperature economizer transformation, high frequency power supply, the demister of desulfurization absorption tower and the installation of fiber reinforced...

Based on the research on elastomer contact mechanics theory and percolation theory, this paper analyzes the sealing performance of metal rubber from the micro perspective of sealing coupling surface topography. By constructing the function of contacting rough surface height, the leakage model of metal...

P2P data transmission is the mainstream of network data transmission. P2P botnet malicious data is hidden in normal transmit data, not only difficult to detect but also could cause great harm. This paper presents a method of P2P botnet detection based on data flow, first of all, extract the P2P data...

A series of N-alkylated chitosan (NACS) with various alkyl chain length and degree of substitution (DS) was prepared by a reductive amination method. The synthesis and structural characteristics of NACS was determined by FTIR, NMR and elemental analysis (EA). Fluorescence spectroscopy was used to analyze...

The cofferdam in the liquid bulk areas of Binzhou port haigang district used a new type of structure called the frame-fixed row-pattern pile cofferdam. It not only applies to the soft soil foundation of binzhou port?but also can be used as landing structure of pier in the late. However, the construction...

The temperature of media surrounding the heat source can be done by a non-contact measurement. Since it is a non-contact measurement, there will be a distance between the measuring instrument and the surface of the object measured in temperature. It is necessary to identify the relationship between measurement...

The signal lamp is an important component in the railway signaling system. The most important component of the signal lamp is LED (led emitting diode). Because the signal lamp is continuo turned on and in a bright situation even in different weather conditions, so from that situation comes a reduction...

Operational amplifiers are at the heart of most analog circuits, but their energy requirements have become a pressing concern, particularly in battery-powered systems and small sensors. To meet these demands, engineers have increasingly focused on low-power operational amplifiers that can deliver acceptable...

This research introduces BGPNetSim, a Dockerized simulation framework designed to enhance the study and experimentation of Border Gateway Protocol (BGP) routing. Leveraging Docker containers and Quagga, BGPNetSim creates isolated and reproducible network environments, making it an essential tool for...

Precise and accurate radar cross section (RCS) measurements, especially for tracking small radar cross section targets (e.g. tracks on Fighters), or RCS reduction and radar absorbing materails evaluation for other targets of interest such as aircraft, tanks, or ships, is a must. As a consequence, the...

Giant Magnetostrictive material (GMM), with the properties of fast response, great energy density and high Curie temperature, has potential to be applied to flow control, especially in designing of high speed servo valve working in severe circumstance. The Giant Magnetostrictive Actuator (GMA) is the...