Advances in Engineering Research

The purpose of this study was to analyze students’ mathematical modeling on PISA quantity problems which concerns formulating contextual situations mathematically. A total of 310 eighth grade students of a state secondary school in Sidoarjo, Indonesia, were involved in a task-based questionnaire whose...

Image measurement as the main method in sport biomechanics kinematics research, the main principle is the photography technology in does not affect the athletes training and competition of a non-contact quantitative measurement. Then through the use of a variety of software on the image processing and...

DSC method and closed bomb test were adopted to an aging different time of the double base propellant forward to carry on a research, activate energy was computed with dynamics method, and computing syn-thesize combustion characteristic parameter of the double base propellant. Conclusion: with aging...

Hai Yang Shi You 981 (HYSY981) is a 6th generation deep water Semi-submersible rig and the first DP3 drilling rig in China. To ensure safety operation of the rig, dynamic positioning capability analysis was performed on HYSY981. Firstly, the model of marine environment including wind, wave and current...

Fractured horizontal wells are widely applied in the development of tight reservoirs nowadays, which will stimulate the seepage zone, reduce resistance near the wellbore and increase productivity. Through analyzing all factors affecting fracturing development effectiveness, select the key factors, and...

In recent years, geophysical technology has been widely used in soil and groundwater investigation and remediation of contaminated sites assessments in Taiwan, such technology can securely work in either small or large sampler areas, and collect data from the traditional one-dimensional data to two-dimensional...

Acid dew point is one of the important parameters in boiler design and operation. Its height is closely related to the flue gas temperature, boiler efficiency, coal consumption and the utilization of flue gas waste heat at the tail of the boiler. In this paper, from the point of view of the sulfur content...

To solve the problem of transporting the slime and gangue which in the power plant at the long-distance, and improving the economic and environmental benefits, it plans to design the pipeline of slime and gangue. Under the premise of the feasibility, begin to implement and manage the transportation method...

Instability is one of shortcomings for wind power. Along with the increasing of the number of wind farms, power instability also increased. The fluctuation of wind power will cause the variation of voltage in access point .The impact of this fluctuation to power grid is more and more bigger. To reduce...

As the stable operation in coal production is threaten by many kinds of safety accidents seriously, doing research on emergency knowledge in the field of coal mine safety production can provide several for emergency decision, which is of great importance. This paper designed and developed coal mine emergency...

In order to study the automatic control of multi - functional home wiring board, and can achieve real-time measurement of power consumption function, this paper uses the microcontroller to control the design of a human infrared inductive electronic multi-function home wiring board. It is mainly composed...

Distributed Generation can reach multiple functional goals of higher energy efficiency, lower energy cost, higher safety, better environmental protection performance and so on, which is the best way to reflect energy-saving, emission reduction, safety and flexibility. In this paper the development of...

In order to enhance employees' technical and management skills to the best effect possible and maximize the returns on the investment of the Group in the online university, this paper discusses how to make the best use of the online university. Training managers should be familiar with the content and...

Supervised learning algorithm is widely used in current research of software project risks, while it cannot evaluate the risk without decision class. Considering this, we present an unsupervised model, which can solve the forecasting problem of outsourcing software projects risks in unsupervised situation,...

In order to realize the automated warehousing information management, a storage information management system based on patrol robot technology was designed and developed. The robot's core controller uses a STM32F104 chip produced by ST Company. The position information of the robot is obtained through...

There are some difficulties in wisdom campus, such as geospatial big data sharing, function expansion, data management, analysis and mining geospatial big data for a characteristic, especially the problem of data security can't guarantee cause prominent attention increasingly. In this article we put...

Data on the synthesis and sorption properties of natural calcium aluminosilicates modified by poly-1-vinyl imidazole (PVIm) and poly-4-vinyl pyridine (PVP) are presented. The fullest recovery of nickel (II) ions from low-concentration solutions is observed for PVP-modified aluminosilicates. Adsorption...

With the advanced development of the society, ice storage air conditioning system develops towards intellectualization. The control system of ice storage air conditioning is required to be equipped with parameters of intellectual regulation to control the temperature. In operation, ice storage air conditioning...

In this paper, based on the DCF cash flow discount valuation model, and partly using the geological analogy method, we analyse the availability of chromite mineral in China by the provinces and deposits. We eventually calculated the availability data of chromite ore in China at different levels of internal...

Computer software development has been used in many areas and it plays an important role in improving the efficiency. Computer software design is generally divided into four steps: analysis, design, testing and maintenance, which must meet the needs of customers. This paper briefly describes the problems...

Under the government subsidy and carbon tax mechanism, a game-pricing model of government and closed-loop supply chain members is established for closed-loop supply chain system consisting of manufacturers, retailers and third parties. The optimal subsidy intensity and carbon tax rate are obtained by...

Magnesium deficiency is a common item in red-soil vegetable field in the south of China, and it has few studies about effects of applying magnesium fertilizers on vegetable's growth this region. So, a field trial, with applying different rates of magnesium fertilizers on the basis of farmer routine fertilization,...

To the characteristics of the large delay and uncertainty of superheated temperature, a new cascade control system is presented based on control's history. Based on the analysis of the control objects'dynamic characteristics, historical control information(substituting for the deviation change rate)is...

With the constant improvement of urban construction ,the elevator has become an indispensable part of the modern city.In recent years ,elevator accidents often occurred .The main factor of accidents was the fault of brake. The elevator brake is an important part of the elevator traction machine. The...

In the horizontal hole drilling operation of engineering survey, the frictional resistance between the drilling tool and the wellbore seriously affects the drilling efficiency and the service life of the drilling tool. Starting from the design and control direction in modern electromechanical system...

To enhance railway construction in the “14th Five-Year Plan” and expedite modern infrastructure, optimizing railway passenger flow deployment is crucial. This study analyzes the interplay between railway passenger volume and tourism development using 2005-2022 monthly data. It considers economic, transportation,...

Digitalization in the industrial era 4.0 has changed how work and workplaces have become digital. It is predicted that many jobs will disappear in the future, which requires individuals to move dynamically according to the movement of industrial patterns. Many jobs are lost, of co. Of, there will be...

In recent years, with the rapid development of the global aviation industry, the safety problems of large terminal buildings have become increasingly prominent. In order to ensure the safe and smooth operation of the terminal building, based on the application concept of embedded multifunctional security...

Moving object detection belongs to the primary processing stage of visual analysis, as well as the premise and basis of object tracking and behavior analysis. Foreground motion images containing shadows are obtained by an adaptive Gauss mixture background model. To better remove shadows and get moving...

Integrated with features of rigidity and flexible cable parallel mechanism, the new configuration of the parallel mechanism based on rigid-flexible combination has been proposed. The existing parallel mechanisms mostly are developed based on the typical Stewart configuration, and the driving components...

At present, the rice direct seeding equipments in China are difficult to achieve precise hill-drop and can not meet the agronomic requirements, so we put forward a rice direct seeding technique with synchronous open furrows and design a suspension type of precision rice hill-drop drilling planter for...

The camera calibration with traditional methods is of low efficiency and big error, and it needs to extract boundary points manually. In order to improve the efficiency and automaticity degree of the camera calibration, a fast and easy method research of automatic camera calibration was presented. In...

As a new type of green material with excellent physical and chemical properties and mechanical properties. Basalt fiber are widely used in the field of civil construction. The present status of the research and engineering applications of basalt fiber in concrete were summarized.The advantage of application...

Because the trend in small hydro-power micro grid flows bi-directionally, the traditional strategy which based on phase voltage change and load shedding has become increasingly unreliability. In order to adapt to the new application environment of small hydro-power micro grid, and to improve the protection...

Influenced by the dead loads and the cyclic loads of upper structure of bridge over a long period of time, it will have important significance to study the settlement, bearing capacity and skin friction, relations between cyclic loading and the nature of the soil for reconstruction in service period...

Engineering surfaces are comprised of different wavelength bands commonly referred to as roughness, waviness and form. The Gaussian filter is a common technique to separate surface roughness profile but it has some drawbacks. This paper presents an approach of utilizing Empirical Mode Decomposition (EMD)...

This paper developed multi-layer corrugated steel plate isolators in order to meet the needs of isolation in marine power systems, and the main parameters which affecting the performance of corrugated steel plate isolator are studied through the static experiments. The experimental results show that...

The development and application of IoT has achieved remarkable results in recent years. A large number of sensors are connected to the machines and are combined with the Internet, which achieves intelligent management and operation. At the same time, the security and privacy problem in the IoT environment...

The paper presents the results of therapeutic efficiency of Komfortis, Foresto and Fitoelita medical agents used during flea infestation among domestic cats. For the study, the animals were divided into three groups 10 animals each. Clinical, hematologic and special research methods were conducted during...

Safety in automotive engineering depends very much on the brake system and its availability for use. That ability is usually tested on stands having cylindrical drums or on stands in the form of flat plates. Functionality of the brake system means not only slowing down a vehicle, but requires achieving...

This work describes research methods of complex problem solution to estimate strength and durability of flat laminas and multiple layer shells of rotation with an account of plastic deformations, temperature creep, the hydrogen corrosion and degradation of material’s properties in time. The practical...

When optical fiber is employed as a medium to transmit data in ring network typology structure communication system, several mal-functional work nodes in the communication system will result in malfunction in communication and loss of data, and will eventually affect performance efficiency. This paper...

In allusion to the inaccuracy of homography matrix using RAnSAC from image stitching based on image features,a new image stitching algorithm based on genetic algorithm was proposed.First,locate and describe the feature points of images using feature extraction algorithm,and and the coarse matching was...

The article focuses on the study of induced-creasing traffic during highway reconstruction and extension. The article discusses the principles and characteristics of induced-creasing traffic during highway reconstruction and extension. And then gives the conduction-diffusion model about induced-creasing...

This paper comprehensively investigates bitcell architectures in traditional and emerging memory technologies, including SRAM, DRAM, NAND Flash, STT-MRAM, ReRAM, and FeRAM. As the foundational unit of memory systems, bitcell design critically influences key performance metrics such as density, speed,...

Semi-flexible pavement (SFP) can effectively refine rutting problem of asphalt pavements with the combining of rigidity and flexibility simultaneously. This study focuses on interconnected porosity rate (IPR), a key indicator to control engineering quality of semi-flexible pavement, and investigates...

Water is the basic need for better quality of life and becomes the sensitive issue in the urban area such as Denpasar City, the Capital of Bali province that very well known as the tourist destination in the world. Some experts predicted that Denpasar City will face the clean water crisis in 2019 and...

COVID-19 is an outbreak of Coronavirus in 2019 (coronavirus disease 2019) around the world. This disease is caused by a new type of Coronavirus that is named SARS-CoV-2. The World Health Organization (WHO) more than 1,500,000 cases of COVID-19 have been reported in Indonesia. The SARS-CoV-2 virus can...

Water is the origin of life, and urban development is closely related. But China's current irrational urbanization has fragmented the symbiotic relationship between man and water, and between the city, leading to storm water pollution, urban wrong, falling water tables and other issues. The study based...

Traffic flow prediction has been the crucial aspect in the Intelligent Transport Systems (ITS) and it will help ITS to induce the traffic flow rationally. In this paper, a prediction model based on ELM has been discussed through testing this model with actual data. This model takes advantage of the speed...

Water conservancy project is a system engineering, including rural town, city and county, and many aspects of industrial and mining enterprises and special facilities. The resettlement work involving many points, wide, long, is the focus and difficulty in the implementation of the water conservancy project,...

The process of drilling of wells using mathematical modeling is considered in this paper. Mathematical models of deepening and flushing of wells are used to describe the drilling process. Mechanical speed of drilling bedrock by bit is described by the equation proposed by M.G. Bingham [1]. A complete...

Phloroglucinol–resorcinol–formaldehyde (PRF) carbon aerogels were synthesized using Na2CO3 as the catalyst. Acidizing process was introduced to the sol–gel reactions system. The results show that the acidizing process of trifluoroacetic acid acetone solution can decrease the shrinkage factor of carbon...

the cross wedge rolling technology, as an effective method of shaft forming, has been paid more and more attention. With the development of the car's lightweight, aluminum alloy with its high quality performance, as a substitute for the best choice of structural steel. Steel of shaft parts by cross wedge...

Urban river systems have increasingly become polluted in China due to rapid industrialization and urbanization. Although there are standards for classification of surface water in terms of water quality, no classification exists for malodorous rivers. In this study we used a combined approach of quantitative...

Brake temperature rise has a significant impact on the braking performance of the vehicle, especially when the vehicle in the long downhill road, and the driver of the vehicle brake operating temperature is particularly necessary to master. Inverse heat conduction problem solving was based on the thermal...

At present, the crystallization method has become a hotspot in the field of wastewater treatment. The crystallization method not only remove phosphorus effectively in wastewater, but the phosphorus also can be recycled. The crystallization method includes ammonium magnesium phosphate crystallization...

It is known that vehicle structural thickness change will lead to vehicle modal characteristics change .In this paper, the thickness of floor, sidewalls and vehicle top are chosen as the variables so as to calculate the relationship amongst thickness change and frequencies (Vertical bending- f1, Torsion-...

Mold failure usually starts from the surface. The mold life expectancy can be effectively extended by improving the surface properties and performance of the mold. Laser cladding technology is a new type of materials processing and surface modification technology. Because the advantages of cladding surface...

During waterway dredging engineering due to the disturbance of construction operation on water, the original substrate will change and suspended solids will concentrate sharply in a short period of time resulting in the change of local ecosystem and river habitat landscape and bring adverse impacts on...

We analyzed the contents, horizontal distributions and pollution sources of Cu in Jiaozhou Bay, Shandong Province, China in 1984. Results showed that Cu contents in surface waters in July, August and October 1984 were 0.28-1.88 μg L-1, 1.60-4.00 μg L-1 and 0.11-2.00 μg L-1, respectively, and were...

An efficacy evaluation model of a certain missile technical support system is established by adopting ADC method. Both important influencing factors and evaluation index of system effectiveness are determined via analyzing the missile technical support process. Simulation results show that the proposed...

Fluorinated graphene/ultra high molecular weight polyethylene (FG/UHMWPE) composites were prepared by ultrasonic dispersion and hot pressing. The mechanical propertys and tribological property of pure UHMWPE and FG/UHMWPE composites were investigated by micro hardness tester and high-speed reciprocating...

TongGuan Section of Weihe River Watershed is a provincial section between Shaanxi Province and Henan Province, China. So it is taken as the research objective in this paper and NH3-N is chosen as the water quality parameter. According to the discharge characteristics of point source pollutions and non-point...

Experience in operation of trucks shows a significant increase in a failure number of their systems and parts in natural and climatic conditions of a permafrost zone compared with the conditions of a moderate climate. This article presents a study of operability of the forty MAN F2000 trucks used in...

In order to meet the development trend of smart environmental protection platforms and smart environmental monitoring systems, this paper proposes the recommendations of unmanned intelligent detection and processing technologies to improve the level of environmental monitoring. The article discusses...

With the rapid development of computer science and technology, it has a great impact on the traditional computer courses. To adapt to this trend, many colleges and universities have set up new curriculum systems around big data, artificial intelligence and blockchain technology and it brings new opportunities...

Acid dyes were more difficult to be removed by chemical coagulation method due to their solubility. The threshold of anaerobic of acid dyes as model dyes was investigated in this paper by the analysis of the degradation products were detected by GC-MS. High COD removal and low decolorization of the acid...

The operation of power system is transforming from traditional dispatching mode to market, and coupled with the uncertainty of intermittent energy, day-ahead electric power and energy balance will be a multi-objective coordination problem of new energy consumption, contract execution, grid security and...

Mel-filterbank energies is a key feature that is widely employed in automatic speech recognition(ASR) system. It arises from a sub-band spectrum typically. But when the noise exists in the background, Mel-filterbank energies can not be easy to estimated accurately. In this paper, the fact that the trajectories...

The study reveals the relationship between ecological civilization and land use and management. Ecological civilization requires the correct understanding and respect for the characteristics of land in land use and management. Ecological civilization has become an important measure of land resources...

We use the building energy simulation software named Ecotect to carry out the simulation analysis of the overall thermal environment of residential buildings, to find the main factors of high energy consumption, to improve architectural design by analyzing several pieces of case. Firstly, we build 3D...

Coal fly ash is one of the industrial by-products that is produced from coal combustion. A large amount of coal fly ash is currently dumped at a landfill, while the current utilization of coal fly ash has been limited to the raw material of soil amendment production and cement concrete. Coal fly ash...

The One of the critical advancements in railway technology is the incorporation of regenerative braking mechanisms, which harness kinetic energy and convert it into electrical energy, thus improving the energy efficiency of railway operations. This study delves into the energy balance and the potential...

This study involves the numerical simulation analysis of geotextile pullout tests, followed by a comparison with the pullout test results to establish the reliability of the numerical simulation calculation model. Subsequently, the study primarily investigates the impact of various parameters, including...

Buildings with a high risk of lightning strikes due to factors such as height, geographical location, and strategic function must be equipped with a lightning protection system. The primary purpose of installing a lightning rod is to protect the building structure, electronic equipment and ensure the...

Taking x County as the study object, doing experiment, calculation, comparison, this article analyzes the top-soil nutrients and PH value in field. The results showed that it has abundant organic content and teaches the standard of growing well for crops. The soil in X County has rich available content....

Modern aeroengine compressor and plate are made of titanium alloy, disc contacting exists between normal stress and the relative sliding value slightly. The combination of mechanical and chemical produced, including fretting fatigue and fretting wear of micro damage. Micro cracks of fretting fatigue...

With the rapid development of offshore wind power industry, it is significant to improve the accuracy of offshore wind energy assessment. Sea surface roughness and atmospheric thermal stability are main factors that influence the offshore wind energy. But at present, most researches on micro-scale aerodynamic...

To solve the lubricating problems of spherical plain bearings under high-low temperature, high vacuum, heavy loads and strong oxidation conditions, the PTFE and MoS2 based lubricating coatings were prepared on the inner rings of the spherical plain bearings by spraying technique. A self-made tribo-tester...

For solving the problem of daily water demand in G city, a method of particle swarm optimization algorithm combined support vector machine (PSO-SVM) is presented. The expansion constant and penalty factor firstly are selected by particle swarm optimization (PSO). Secondly, the historical water demands...

The article considers the problem of reducing the cost of heavy oil productions. A new approach, based on the intelligent analysis of successful events' historical data of qualitative EOR application, is proposed. Based on database info analysis, the synthesis of a model, targeted to automated search...

Social Networking Services (SNS) which are based on the theory of Six Degrees of Separation emerged in 2003. With the rapid growth, it came to be a popular social service network in 2009. SNS have features that conform to learning theory of constructivism, thus having more advantages than traditional...

The defect detection of plastic gear is difficult because of its small size, so a method based on machine vision is proposed to inspect plastic gear accurately and quickly. Digital image of plastic gear is collected by CCD camera, and then the image is preprocessed to generate single pixel edge of gear....

A platinum resistance bridge thermometer is introduced. It implements linear temperature measurement in -200~850 degrees with a bridge circuit. It consists of bridge circuit, multi-channel switches, amplifier, AD574, display, COM port, precision power supply, 89C51 etc. After the analysis of bridge circuit...

Methods used for the determination of strontium content in pyrotechnics are mostly based on traditional chemical method, which is lengthy and cumbersome. If inductively coupled plasma emission spectrometry or atomic absorption spectrometry are used to determine the strontium with high content, the sample...

Polymer flooding has a large-scale promotion in Daqing oilfield, this paper prepared two-dimensional heterogeneous model according to the typical reservoir in Daqing oilfield and did the experiments of water flooding and polymer flooding with the method of three tubes parallel, monitored the oil saturation...

Finite element software ABAQUS was used to calculate the dynamic characteristics of Xi’an Xiao Yan pagoda by a three-dimensional entity model, and a variety of factors were simulated on its dynamic characteristics. Results show that it is feasible to calculate the structural dynamic characteristics by...

To verify whether insitu conditions have been realistically estimated during investigation and to furnish the permanent data set for the interpretation of geological conditions, foundation floor mapping of important structure like control building of nuclear power plant is essential. At Rawatbhata, adjacent...

In this work, a packaging laminate consisting of LDPE (Low Density Polyethylene), Al-foil (Aluminum foil) is focused, and failure due to necking in substrates and interfacial delamination under loading are considered. A coupled elasto-plasticity damage and fracture constitutive model is combined. The...

The forster resonance energy transfer (FRET) between different CdTe QDs and RhB were investigated by steady-state and femtosecond time-resolved photoluminescence spectra technique. Through the measurements on three different CdTe sample solutions, it was found that the FRET efficiency is proportional...

Domestic prefabricated construction has developed for a long period, and has attracted more and more attentions. This paper analyzes the progresses it has made in technical and material aspects through history and prospect. Furthermore, the features and advantages are summarized in order to promote the...

In this paper, an indoor positioning method is presented for self-localization of a mobile device by combining Wi-Fi wireless location, strap-down inertial navigation systems (SINS), augment reality and ultrasonic positioning. Over the last few years, inertial sensors with low cost and mobile devices...

Aim at the drought, one of the important stress factors, we chose the Prunus avium named ‘Hong Deng’ to experiment. Through artificial control field soil water content, to different drought stress treatment of sweet cherry, we collected the changes under different drought stress, including characteristics...

In order to find the best type-reduction algorithm of interval type-2 fuzzy sets with different characteristics, this paper makes a comparative analysis of KM, EKM, IASC and EIASC. Experiments are carried out on three type-2 fuzzy sets to compare the four algorithms.The results show that the four algorithms...

In this paper, the seventh-order Kaup-Kupershmidt (KK) equation arising in fluids and plasmas is considered. The pseudopotentials of the equation are derived, based on the pseudopotentials, the Lax pair of the equation is get, which shows that the equation has the Lax integrability. It is a very important...

This paper is based on the relevant data of Hainan entry tourism from 2006 to 2015, and analyses the development of Hainan inbound tourism and composition with the aid of Excel software as well as uses clustering analysis of SPSS23.0 software. The results show that Hainan entry tourism industry develops...

All kinds of Marine creatures of ship's ballast water with the migration of vessels, globalization, and with the discharge of ballast water, invaded the local ecosystem, breaking the original ecological balance. Ballast water caused by biological invasion on the global diversity of ecological system,...

The phenomenon of the development of the city of Ternate in recent years shows that there has been a crisis in the availability of public space. with the construction of malls and offices, has the opportunity to create a distance between the layers of society and the beach as the identity of the city...

The Lubuk Larangan Tradition is one way for most of the indigenous people in Jambi Province who live in the watershed to protect the water and fish that are almost extinct. This tradition is carried out with certain skills and knowledge that are based on local wisdom and are based on the values contained...