Advances in Engineering Research

The k- turbulence model and the VOF method of moving interface tracking have been used to generate the wave. By two-way iterative method,the fluid structure interaction between wave and steel pipe pile platform has also been simulated numerically by using ANSYS Workbench. And a comparison among the results...

This article describes methods and results of laboratory simulation of processes in the clay soils contaminated by oily substances in the samples, on the one-dimensional and three-dimensional physical models. It describes the laboratory setup, the procedure for conducting experiments and processing their...

A gearbox fault detection and diagnosis test table of wheeled armored vehicles is designed and established. Typical faults and vibration experiments can be preset. Aiming to the d that traditional spectral kurtosis algorithm cannot be applied to gearbox fault signal feature extraction under strong noise...

One kind of recurrent neural networks - Zhang neural networks (ZNN) is studied for solving a set of linear matrix inequalities - Lyapunov matrix inequalities.

1.0at% Nd:YAG polycrystalline ceramics were fabricated by solid-state reaction and vacuum sintering method using commercial Al2O3, Y2O3 and Nd2O3 as raw materials, SiO2 and SiO2 combined with B2O3 were used as additives. By changing the ratio of B2O3 to SiO2, the effects of B2O3-SiO2 doping on sintering...

This paper presents a network attack authentication method based on digital watermark technology, CRC16 as watermark is added to the original data, combined with the simulation model of the method of performance analysis. It is proved that the method can detect false data in real time conditions, provide...

Daijiazhou reach is located at the section of Yangtze River between Wuhan and Anqing, is important one of the shallow water channels in the middle reaches of Yangtze River. Through analysis of river evolution and the model test of river engineering, change rules of scouring and silting of riverbed, stability...

Research on how to use the video or image sequence variation in the shadow of the sun to determine the time and space that captures the time and place locate problems, combined with solar elevation angle formula, established a shadow the length L and the latitude , longitude , sun angle , height and...

With the advantages of short construction period, environmental protection and so on, the structure of assembly concrete has became the main direction of the development of architectural industrialization. Among them,the steel bar connection between the precast units is an important link of the force...

Hybrid-monohull is a kind of high performance ship which has perfect seakeeping performance and equivalent resistance in calm water of round bilge ships, and it’s most feature is the built-up longitudinal-stabilizing appendage fixed on the bottom of bow. In this paper the hydro-coefficients of bow where...

As the state promote the triple play actively, many companies and research institutes have conducted in-depth research and development of the multi- screen interactive products. In this paper, the author designed a new multi-screen interactive product, that started from multi-screen interactive background...

Carbonization is the thermal treatment technique performed in an inert atmosphere, which aims to improve the fuel properties. In this study, the selected woody biomass of koraiensis bark (KB) was carbonized under three heating levels (5 /min,10 /min, 20 /min) at heating temperature from 200 to 600 .The...

Theory about the interaction of TBM disc cutters and rock mass is critical for the design of the TBM machine. The numerical model of the interaction between cutters and rock, has important theoretical and practical meaning for developing a complete forecasting model of TBM performance. In this paper,...

In this paper, it introduced the general situation of the mining area and described the superiority in high gas mine. The article pointed out the concrete scheme of gob-side entry retaining and analyzed the benefit of economy and society, so we can see the advantage clearly. Because of the technology...

This paper introduces the necessity of using the tools for testing the cable of voice distribution frame. A detailed comparison of existing voice cable testing tools is provided, a design scheme of multi-purpose combination tool for testing voice cable is provided. This paper develops a multi-purpose...

The composite power loads largely need the reactive power. It leads to the decrease of power factor in power grid. The traditional static reactive power compensator is difficult to provide the reactive power compensation for the composite load reactive. Therefore, a dynamic reactive power compensation...

In order to strengthen buildings against various damages and prolong their service life, BFRP is considered serving as reinforcing materials instead of steel. Through static load tests on six simple supporting beams reinforced with BFRP rebar and six reinforced with steel rebar, the paper compares their...

A novel process, natural freezing, was developed to remove ammonia from wastewater in this study. A series of experiments were carried out to examine the ammonia removal and ice productivity in laboratory in Dalian, the effect of operating conditions such as solution concentration, pH, ice content formed,...

This study provide a new method for preparations of collagen films with extra cellular matrix via treatments of supercritical carbon dioxide fluid and NH4OH. Tissue engineering combines knowledge of engineering materials and medical applications to find more undiscovered things through this knowledge....

Both the high frequency pulsation signal injection method and sliding mode observer (SMO) can be utilized to identify the position of permanent magnet synchronous motor (PMSM) sensorless system. When the speed of motor runs high, the high-frequency signal injection method is no longer utilized. When...

The microstructures of machined surface of the specimens in electrical discharge machining(EDM) for SiCw/2024 aluminium matrix composites were measured with scanning electron microscope(SEM) and Talysurf-6 roughometer, and the energy spectrums of them were analyzed using EDAX spectrometer. The results...

The basic principles of GMR is introduced and the characteristics of the sensor of GMR is studied by experiment. SPSS is put to use to do data analysis. The results indicate that there is the cubic relationship between the output voltage of the sensor and the external magnetic field and between the output...

The paper describes analysis of the environmental activities state in the industry. Methodology implementation of the three-level models system will not only create a competitive technique and technology with a conscious and controlled quality level for environmental safety and purity, but will also...

The purpose of this research was to investigate the ability of rice endophytic bacteria to synthesize extracellular metabolites before and after gfp (Green Fluorescent Protein) gene transformation. These bacteria were grown in liquid media M63+2mM Tryptophan for 3 days and the supernatants were extracted...

QFD is a system to convert customer expectations to fit the relevant requirements of an industry at each stage of the product development from the research stage through design and production to sales. This study uses QFD approach to determine the requirements for biologically active additives, popular...

the article describes the results of the development of a new criterion for assessing the quality of piloting. The difference between this criterion and the traditional one is that it is an integrated assessment of the quality of the execution of the landing maneuver and characterizes not only the error...

The article discusses the modeling of SAGD using the method of material balance and Butler’s model. This method is very important in the development of heavy oil fields. The application of the integral approach based on the material balance method and Butler’s model allows saving time of modeling without...

This article introduces the heat recovery technology of heat pump,the recovery fresh air heat pump units which combined the heat pump units and fresh air units, and used heat pump to realize heating recovery from inside building.Heat recovery performance has been tested.By using the principle of regression...

This article mainly talks about the RC frame structure of high rise . Frame structure of RC beam element is studied based on the finite element software ABAQUS, and uniaxial constitutive relation of containing material failure principle of reinforcement and concrete is constructed ,and then the influence...

It is proposed the evaluation theory of inverse analysis arithmetic, and it is introduced the evaluated equation on compensate fuzzy control by stainless steel, the affecting gene model of stainless steel on compensate fuzzy control is built. The application of installation process is introduced. The...

Vehicle sideslip angle is a significant parameter for vehicle stability control. Based on the 2-DOF vehicle dynamic model, a feedback observer is built with the correction item. The estimation accuracy of the sideslip angle is improved by adjusting the feedback gain of the feedback term in the feedback...

In this paper, with the opinion of nonlinear dynamics and the triaxial testing machine as the research object, we did the dynamics modeling towards the vertical load cylinder. In the case of taking account of nonlinear friction and nonlinear elastic force, we analyzed the dynamic model of the cylinder,...

Online learning and learning literacy during the Covid 19 pandemic is very important and very necessary. Online Learning through smartphones is the leading media for students in the Learning and teaching process. Therefore, learning physics material for optical tools requires the use of interesting and...

The trunking radio system used in the Makassar - Pare-pare region utilizes DMR tier 3, an internationally recognized open standard from ETSI. The Makassar - Pare-Pare railway network is a recent route with certain areas lacking network coverage, posing safety risks for train travel. An analysis of trunking...

The safety and quality management of transmission and transformation projects in State Grid Corporation Limited has always been a focus for infrastructure construction managers. Conducting high-quality and efficient safety and quality management work will lay a solid foundation for the safe, stable,...

With the rapid development of the Internet of Things (IoT) technology, its impact on enterprise financial management has become increasingly significant. The Financial Shared Service Center (FSSC) in the IoT environment, as the core of enterprise financial management, has been widely used in various...

3D printing technology realized the intelligent production of products. However, in the process of 3D printing, due to the limitation of production instruments, the thickness of each actual material layer can only change within a fixed range. It will cause ladder effect. Especially printing a large degree...

This paper primarily examines three distinct diamond polishing techniques: mechanical polishing, thermal chemical polishing, and laser polishing. As the demand for high-performance diamond semiconductors grows in advanced electronics and optics, efficient and precise polishing methods have become critical...

Wind generation is widely utilized today as a promising form. As the major type of wind turbines, doubly fed induction generator (DFIG) wind turbines have been widely used. Now great attention is paid to the relay protection of power systems integrated with wind power of large capacity. Based on fault...

Traditional six-sequence components can only be applied to the double-circuit lines with symmetrical parameters. In reality, there may appear partially coupled lines with asymmetrical parameter because of the difference in construction. A new decoupling method is adopted to solve this problem. Three...

The synthesis and characterization of magnetic nanoparticles (MNPs) are attracting more and more attention in recent years. By chemical co-precipitation, NH3-H2O as precipitant, reaction with the mixed solution of Fe2+ and Fe3+, then obtain the nanometer magnetite. The sizesof the products are affected...

With the rapid development of the construction of large cities in China, the population density has soared, and the subway is an important transportation tool in modern cities. In order to solve the problem of fault information transmission, the paper adopts the technology of seamless connection between...

In order to reduce the risk of hazardous materials transportation under the background of terrorist attacks,a method based on genetic algorithm is proposed.Firstly,a hazardous materials transportation route optimization model is designed with objective function of minimizing transportation risks and...

Harmful cyanobacterial blooms have occurred worldwide over the past several decades, these blooms cause a series of problems not only on drinking water supplies, food webs, but also on the sustainability of freshwater ecosystems. In this study, we constructed a liquid-phase high voltage discharge system...

The important task of computer basic teaching is to cultivate students' ability of computing thinking. Through continuous efforts, there are many forms of teaching mode during the course of teaching, improving the process of practice and assessment, and fully mobilize the enthusiasm and initiative of...

Network media has become the main means of communication in modern life, this paper discusses how to do evaluation of the effect about network media dissemination, whether the media files reach the audience and the extent of the impact on the audience. To calculate the performance effect of network media,...

In order to eliminate the influence of errors in the differential GPS positioning process, this paper first introduced the basic principle of differential GPS positioning technology and error source, then introduced the positioning principle and algorithm of differential position, differential pseudo...

This paper presents the novel research on the low power and low voltage CMOS integrated circuit design patterns and general methodologies. With the integrated circuit technology to the rapid development of the deep sub-micron and nanometer order of magnitude, how to reduce the power consumption of the...

Scattering wave imaging method and technique is a new kind of prestack migration. Based on the assumption that the earth subsurface consists of a large number of points (referred to as scatter points), closely located on the interfaces, scattered-waves is formed by single point scattered-wave. Other...

Based on the analysis of the principle of phase difference detection for marine power station's parallel operation set, a method for improving the accuracy of phase difference detection is presented. This method uses the interruption mode to reset and read the current count value of high speed counter...

The paper presents practical aspects of experimental research and numerical modeling of stress-strain parameters of the proposed construction element - plastic tube concrete (PTC). The obtained experimental data indicating the loss of load-bearing capacity enabled one to perform finite element analysis...

The interaction among Lanthanum, Arsenic and Iron at high temperature in a pressure-tight reactor machined by H08 steel were studied by means of electron probe microanalysis, optical microscopy and X-ray diffraction to understand what compounds could be developed on the condition that the atomic ratio...

Reservoir Classification and Evaluation is an important section in the process of the research for reservoir development. Based on the analysis of core capillary pressure data, this research proposed: The relationship between R35 (Mercury enters the saturation of 35% corresponding to the pore throat...

A 2-dimensional plain strain finite element seismic soil-structure interaction (SSI) analysis based on the substructure method is presented. A complete SSI analysis is performed. Namely, linear and non-linear SSI analysis is considered; and analysis without the consideration of SSI is performed; and...

Cement mortar is typical of a brittle material, with high compressive strength, low tensile strength, flexural strength, and bonding strength. This paper introduces that several polymer emulsions modified cement mortar. By researching the water-reducing, impermeability and mechanical properties of cement...

This article explains and demonstrates the study about the water strategy of American which is based on the data analysis of the MATLAB software. This society is an era which is consisted of data. The formulation of some policies and the reform of some systems need the help of data simulation. In this...

To investigate the effect of vacancy concentrations on mechanical properties of single crystal -TiAl, the uniaxial tension tests of -TiAl alloy models at different vacancy based on molecular dynamics simulation was performed. The results shows that obvious brittle behavior in stress-strain curve and...

China has a vast territory of severe cold zones, occupying a quarter of the total land. Heating exhaust from coal heating boilers is an important influence factor of air quality in the winter. This situation will be relieved by some urban planning methods. There is no research about air pollution caused...

This study establishes a method of refining the 2,2-dimethylolpropionaldehyde and recovering the methanol and propylaldehyde by continuous side-distillation and distillation, the process was simulated by Aspen Plus software. In addition, the effects of the theoretical stage numbers, feed stage, side-stream...

The experimentally obtained kinetic dependencies of the influence of super plasticizer on the fracture process and structural quality parameters of the compared series of the hardened cement paste samples are shown. Its analysis shows that modification of cement stone structure by superplastiticizer...

In this paper we mainly researchthe coverage problem of WSNwhich is deployed by the UAV according to the pre-established track under themajor disaster environment. Because the deployment regionis uneven and buildings may change at any time, the blind spot will beproducein the deployment process.To overcome...

To realize the online fault diagnosis for induction motor bearings, a method of online identification based on the AR model parameter recursive identification for induction motors vibration signal was proposed. Firstly, based on the optimal instrumental variable method, four auto-regression models were...

The airship modeling is the basic of the airship control problem. Based on airship modeling of pitching channel of airship and its nonlinear model, an traditional PID attitude angle controller of airship is designed. Finally, this control method is proved to be effective by numerical simulation.

The distribution of eddy current field in the Permanent magnet eddy current coupling (PMEC) plays an important role in the PMEC performance. The main factors affecting the distribution of eddy current field are the magnetic field distribution and the material of the copper rotor. In this paper, Ni-Cu,...

The Kelimutu National Park is located in Flores which has an area of 5,356.50 hectares. This national park has unique landscape, endemic flora and fauna, and a national famous tourism site namely Kelimutu three-color Crater Lake. The arrival of tourists in the year of 2017 amounted to 91,219 people,...

During the implementation of energy efficiency policy in the Russian Federation, issues related to the analysis of the electric power quality (QE) in the power supply systems (PSS) of industrial enterprises are of particular importance. Much attention has been paid in recent years to the problem of the...

With the rapid improvement of the economic level of our country, people have put forward more and more high demands on the safe operation of the power grid. The safety of substation operation is directly related to the safe and reliable power supply of the power network. Therefore, in the operation of...

At present, the measurement of vehicle road load, in other word running resistance, are mostly coast down methods. Due to the influence of wind, the method has the problems of poor repeatability and accuracy. This paper, according the current domestic and foreign automobile road load measurement regulations...

This paper realizes TCP/IP communication basing on EMAC of TMS320DM642 as the design platform. This paper analyzes the operation principle of the modules and the structure of light-weight TCP/IP protocol stack. Through the transplantation of LwIP in TMS320DM642, we realize the basic functionality of...

In order to solve the problem of high cost and poor expansibility, this paper presents the design and implementation of the robot based on embedded platform. This paper introduces the design of the printed circuit board backplane, interface, information acquisition and information interaction module...

Various classifiers have sprung up in recent years. This paper introduces a new intelligent algorithm for text categorization based on improved random forest algorithm. This improvement greatly increases the performance of the original random forest algorithm. The classifier was tested on the reuters-21578...

The main task necessary for maintenance of ensuring epizootic conditions as well as veterinary and sanitary wellbeing of the Russian Federation is improvement of legal regulation in the sphere of veterinary medicine, improvement of modern legal norms and rules in the sphere of veterinary activity. Considering...

Concrete is a material that is currently widely used in various constructions. However, the development of material and construction technology does not make it perfect. The problem often encountered is that the compressive strength of the concrete used in construction does not meet the initial specifications,...

The distribution of permafrost in Mongolia is sporadic and discontinuous, and it varies depending on factors such as location, landscape, and temperature. Furthermore, the soil cover in these regions exhibits diverse patterns and characteristics. The objective of this study was to investigate and analyze...

Biofilms are complex microbial communities attached to surfaces, encapsulated in a protective extracellular matrix, leading to increased antibiotic resistance, and contributing to persistent infections and widespread diseases. This mini review aims to examine the antibiofilm potential of nanoparticles...

This work presents a stock price prediction system that combines market trend analysis and sentiment insights using modern machine learning methods. The primary goal is to provide accurate short-term stock price forecasts by integrating historical stock data, technical indicators, and sentiment analysis...

To investigate the influence of the spacing ratio on the flow characteristics around four tandem cylinders of equal diameter, numerical simulations of three different spacing combinations were conducted based on Fluent. By analyzing the velocity cloud diagrams, streamline distributions, and vorticity...

The era of digitalization and advanced technology has revolutionized information exchange, leading to unprecedented efficiency and transformative shifts. Advanced language models are capable of automating routine translation tasks and facilitating communication across languages, making information more...

This study seeks to create a proposed information system for managing human resources. This research is crucial for the State University of Surabaya, a PTN-BH, as it aims to meet the growing demands for efficiency, transparency, and quality in human resource management. The system is intended to streamline...

Retention ponds have the function of temporarily storing water from the drainage system before it flows into the river so that it can reduce flood peaks. In the Palembang area there are 49 retention ponds based on data from the Palembang City PUPR Service, but after investigating it turns out there are...

A crucial area of operation for cognitive intelligence systems is medical therapy. Across a wide range of health datasets, machine learning algorithms produce rapid disease prediction with excellent accuracy. A supervised machine learning approach for classification and regression applications is the...

This paper presents a comparison of several currently used prediction models for creep and shrinkage of concrete. Compared models were: EN 1992-1-1 (2004), RILEM Model B3 (1995), MC 2010, GL Model 2000, ACI 209R (1992), AS 3600 (1988) and BS 8110 (1985). The comparison was made on slabs with two different...

This article provides a reference for the structural design of electromagnetic bullet. Electromagnetic gun bullet is slow and non-lethal,this study creates a bullet model based on the rigid body mechanics and the simplified aerodynamics, the motion simulation is realized by calculating the force and...

Some oscillation criteria for the half-linear Emden-Fowler functional differential equations of neutral type of the form

As an important evaluation index of power quality, voltage is the basic condition for guaranteeing power supply service. With the development of industry and the improvement of the living standards, the demand of electricity increases. Low voltage has become a major problem affecting the work, life and...

At present, the automotive industry standard, material standards stipulate battery life is not less than 500 times to use during charging and discharging the battery every 1 to 2 times, the battery should be scrapped after 2 to 3 years. At present, our country attaches great importance to waste battery...

Based on the analysis of tectonic faults in Sangzhi area, black shales fracture characteristics and controlling factors of the Longmaxi formation of Lower Silurian are studied. That fracture distribution of the study area is mainly controlled by fault, where the NE-trending fault system plays the most...

To development of Guilin plants and flowers tourism, Guilin tourism plants and flowers has been studied by computer. A lot of date of Guilin climatic change and tourism plants has been study by computer. It is mainly analysis of climate change effected on some main ornamental plants optimal viewing period...

Tight time coupling will require the high modeling performance, especially the minimum on/off time constraint. The authors referred to the thought ofthe cutting plane theory, and built 4 kinds of models ABCD of the minimum on/off time constraints, to completelydemonstrate the problem. Then they gave...

In this paper, we studied the control effect of irregular structures with translation-torsion coupling response under earthquake loading by using semi-active control method. On the base of traditional resistance design method, we couple magneto-rheological fluid damper (MR) and tuned mass dampers (TMD)...

The propose of optimal configuration of micro grid is to reduce economic costs,enhance power supply reliability and improve environmental performance. This article introduces the basic structure of diesel-wind-solar-battery micro grid and power supply model. Taking the minimum annual value cost as economical...

A numerical modeling were built by ABAQUS to do push-over analysis, and the results were consistent with test results in load-displacement curve and frame stress nephogram. Furthermore, the influence of the changing key parameters were analyzed by numerical simulation to understand the axial compression...

In the present paper, we carry out the automatic modification of a semi-automatic nail case machine with a manipulator as the main body, in order to meet the needs of the market. In particular, the design of the main parts of the manipulator and the pneumatic system are described in detail. The designed...

designed and implemented a set of typical education cloud platform system, the platform adopts the double virtual network architecture, the network is divided into two layers: the underlying real device based on virtual support platform, to build the business layer.

New energy connected to power grid brings new challenges to optimal operation of power systems. The transient stability of power grid mainly depends on primary frequency compensation of thermal power units. By analyzing the theory and practice of DEH and coordinated control system(CCS) of thermal power...

In the conditions of pressure maintenance when balanced injection and production rate, produced gas-oil ratio should remain stationary. Conversely, take Sabei oilfield as an example, along with the development entered high water cut period, the value of its produced gas-oil ratio increased significantly....

In recent years, new media spring up suddenly compared with traditional media. However, the application of digital technology in exhibition and display of museum not only has great influence on the development of exhibition but also brings much attention on digital exhibition and display technology....

In recent years, our country has been a great leap forward development, the level of industrialization of our country's economic and social development is to continue to improve, and this and the electrical automation control system design and application is not open. The electrical automation control...

Low-rise buildings such as lightweight portal frames are often very susceptible to wind effects, owing to their light weight and large span. The numerical simulation analysis of fluid-structure interaction of low-rise lightweight buildings with different roof pitches is performed by ADINA to investigate...

As a solution of high efficiency and clean energy, fuel cell technologies, especially proton exchange membrane fuel cell (PEMFC), have caught extensive attention. However, after decades of development, the performances of PEMFCs are far from achieving the target from the Department of Energy (DOE). So,...