Advances in Engineering Research

Linear acoustics is adopted to analyze the influence on the entry diameter of the gas inlet orifice on the acoustic damping of the injector. The impedance tube method is used to assess quantitatively damping capacity of entry diameter of the gas inlet in order to find the best structure parameter of...

This paper briefly introduces the domestic and foreign status quo of protective relaying simulation technologies. It also summarizes the current problems and obvious drawbacks of three existing methods, which can't meet the requirements of large grid's operation. In this paper, a new protective relaying...

The industrial powder waste from thermal power plants such as fly ash is used as asphalt or mineral filler due to its properties and dispersibility. However, the conflicting data on the fly ash usage are due to the different compositions, dispersibility, reaction capacity of the used fly ash. This paper...

Cu pollution in marine bay has been one of the environmental issues in the world, and understanding the transporting process of Cu is essential to environmental protection. This paper analyzed the horizontal distributions of Cu in bottom waters in Jiaozhou Bay, and identified the high settling regions...

The various influence factors of the slope stability is analyzed on the slope stability problems. Based on the basic principle and method of fuzzy mathematics and GIS, the slope stability analysis of fuzzy and comprehensive evaluation model is established and the grading index of the slope stability...

Use the labrotary methods to analysis the dot corrosion (DC) of steel sheet passivating film after the painting process. S-3400N type of SEM and EDS were employed to resarch the microstructure and the chemistcal component. The results showed the inclusion of sheet surface decrease the coverage and uniformity...

As smart building becomes increasingly popular, it enables many interesting applications, such as smart lock, elderly monitoring and remote healthcare. This paper will introduce one sub-system in the smart building: smart power system. This smart power system consists of an Android application, a cloud...

The twenty-ninth span 1# box girder of grand bridge on a Expressway in Yunnan, China，which is broken suddenly during the hoisting and transportation, resulting in the overturning of the beam and partial breakage. This paper focuses on the study of concrete appearance and concrete strength by CT technology....

In order to reduce the vibration transmission from the propeller to the hull, the integrated shaft vibrating isolating system is used to support the bearings, the propulsion devices and the auxiliary engines. To achieve the goals of vibration and noise reduction of the hull, the vibration energy is attenuated...

The throwing motion of materials in the rotary dryer is the key step to dry off. An estimation model of solid material transport was established. The motion rule about the lifted materials was studied. The numerical model was proposed according to the space motion of materials and mathematical calculation....

Software birthmarks have been proposed as a method for enabling the detection of programs that may have been stolen by measuring the similarity between the two programs. A birthmark is created from each program by extracting its native characteristics. The birthmarks of the programs can then be compared....

Ocean wave excitation contributes to the emergence of noise in the communication system that is applied to the ocean. This paper delivers the preliminary design of the smart buoy with noise reduction capability provided by the attached dynamic vibration absorber (DVA) automation system. Hydrostatic stability...

Cassava peel is the leading waste generated by the cassava processing industry. One of the regulatory efforts is to use it as a raw material for activated Carbon to adsorb dyes. This study aims to determine the adsorption capacity of activated Carbon from cassava peel waste on yellow dye. Activated Carbon...

Although research on vehicle-bridge coupling during passage over expansion joints is relatively mature, the impact of seasonal temperature variations on the dynamic response of these joints has not been sufficiently explored. To address this gap, this study conducted a year-long real-time monitoring...

Taking the threat of debris flow disasters to the tunnel entrances along the Chengkun Railway as a backdrop, this study combines field data with numerical simulation using the discrete element software PFC3D. The complex process of debris flow impacting tunnel entrances is highly destructive and consists...

The wind tunnel test was carried out for the Sightseeing Tower of the West Taihu Lake, Changzhou in this study, and the equivalent static wind loads of the Moon Tower were obtained at different wind angles. Frequency-domain analysis was performed to reveal the wind-induced response dynamics. The distribution...

In order to create a safety rating for My City and specify a measure of how safe My City is, a comprehensive method is developed. In the model, we take into account a variety metrics, and divide them into three categories: The critical matter, Police and The domestic situation. We employ Analytic Hierarchy...

As the actual take-off weight of the aircraft is less than the maximum take-off weight, the technology utilizing thrust less than maximum take-off thrust for take-off is called reduced thrust take-off. Reduced thrust take-off is in generally divided into Assumed Temperature and Derate Method. In this...

E-commerce is an important driving force of the world economic development. The emergence of modern logistics in e-commerce environment, made the logistics in the development of informationization, networking, intelligent direction, The logistics industry in China started late, not modern enough, restricting...

High-strength 18Ni-300 maraging steel parts were fabricated by selective laser melting (SLM) additive manufacturing. Aging treatment at 490 ºC for 6 hours was applied for improving the mechanical properties of SLM fabricated parts. The microstructure and properties of the as-fabricated SLM 18Ni-300 parts...

The electrochemical response of new alloy corrosion-resistant steel Cr10Mo1 passivated under attack of carbonation (pH from 13.3 to 9.0), was evaluated by electrochemical techniques (linear polarization resistance, and electrochemical impedance spectroscopy). X-ray photoelectron spectroscopy (XPS) was...

Linux Virtual Server (LVS) cluster technology is widely applied at high-performance web service. In LVS, Weighted Least-Connection (WLC) scheduling algorithm is usually adopted due to its good effect. However, WLC scheduling algorithm can't always make real server (RS) run efficiently. In order to improve...

Under the background of climate change and human activities, the rainfall characteristics has changed seriously in recent years around China. The main characteristics of rainstorm has also significant change in most large cities. The frequency, intensity and duration of rainstorm varied in many different...

With the rapid development of information technology, network is closely related to the college students’ daily life. Building the student Party branch in higher vocational colleges under the network environment is a new management model of the Party organization. As a basic part of the organization...

It is important to use materials, crafts and technologies to design and manufacture shapes of physical objects, such as furniture. This paper joins pieces of traditional and contemporary studio furniture, decoding them on the basis of material, craft, and computer design technologies. Drawing on Studio...

According to the need of modern competition and the operation and management of the supply chain, this paper analyzes the frame and system structure of a visualized supply chain, further reveals the technologies on supply chain acquisition, integration of heterogeneous data, data analysis and processing...

The dangers of a single vulnerability can be assessed by the CVSS, but in some cases, comprehensive harm of several vulnerabilities is 1 + 1> 2. So evaluating multiple vulnerabilities that are not just many single vulnerability assessments, but also integrated many complex situations. This paper studies...

Electric inertia unit can have an impact on electromagnetic force generated by induced current through regulating the value of load resistance. The electromagnetic force can be precisely controlled to restraint the motion of the piston. The proper electric inertia unit for the Free-piston linear alternator...

Since the monitoring of software project progress involves many uncertain factors, it is crucial to choose an effective modeling method to monitor the software project progress. In this paper, we propose a novel method to monitor the software project progress based on automata theory. The main contributions...

Iron and steel industry, as the important foundation of the national economy, has been developed rapidly in recent years. However, with constant expansion of steel production, industrial emissions and pollution problem is increasingly outstanding, the previous extensive development mode cannot adapt...

To research on the equivalent of perforating through LY12CZ aluminum alloy plates and 2 armor steel, based on the rule that the ultimate velocity, the penetration process of tungsten sphere into LY12CZ aluminum alloy plate and 2 armor steel plate was simulated with LS-DYNA finite element code, the numerical...

Aim at the reservoirs condition of high porosity, high permeability, high viscosity of crude oil in the offshore oilfield, this paper used two-dimensional heterogeneous physical model to conduct laboratory displacement experiments which contain water flooding, polymer flooding and binary combination...

Rock-fall impact is the main threat to the roads and bridges. The research background, methodology and literature review are introduced respectively on rock-fall impact to traditional reinforced concrete shed-hole and flexible steel shed-hole. The impact force transmission mechanism is brought into focus....

For the purpose of improving the effect of natural ventilation and thermal comfort of a traditional stilt houseslocated inSouthern Yunnan Province. Theindoor and outdoor windenvironment of the existingStilt houseswere simulated by Airparksoftware, thefactors of indoor ventilation effect and thermal comfort...

A series of catalysts were studied for removal efficiency of hydrogen cyanide (HCN) under micro-oxygen conditions. It was found that activated carbon modified by Cu, Ce, and cobalt sulfonated phthalocyanine (CoSPc) denoted as AC–Cu–CoSPc–Ce showed significantly enhanced catalysis ability. The influences...

The effect of the nugget position on the stress distribution in aluminum single-lap weld-bonded joint was investigated using elasto-plastic finite element method (FEM). The results from the numerical analysis show that all the peak stresses of stress components Sx, Sy, Sxy and von Mises equivalent stress...

In-situ stress parameters of the rock mass are one of the vital inputs for the design of any large underground openings. In general, the in-situ stress magnitude and orientation are influenced by topography, and major geological structures like folds, faults and intrusions. These structures bring about...

E-commerce enterprise in China has been involved in various industries, its financial activities has the characteristic of paperless trading, complicated financial information processing, etc, the traditional manual audit technology has been unable to meet the demand of e-commerce enterprise internal...

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, the leaf photosynthetic indicators, including net photosynthesis rate, transpiration...

Spatial autocorrelation method is based method for the dispersion curves analysis of microtremors, which is being paid more and more attention because of its convenience and efficiency, and no disruption to the environment. In this paper, the homogeneous medium and layered media are studied by numerical...

The online interactive teaching model of Internet+ business translation, based on the constructivist theory and interactive teaching theory, has the advantages including resource sharing, extended teaching and convenient learning etc..All teaching links are composed of interactions between teacher and...

The heat more than half of ship diesel engine exhaust gas and cooling water to the outside world, caused great waste of energy, on the other hand, the ship everyday want to consume large amounts of electricity to maintain the normal operation of the refrigerator and air conditioning system of the ship....

The purpose of this study is to identify and implement the most suitable and prominent dimensions for stress in the learning process of students, which are key to the development of academic stress models. This research conducts a comprehensive review of research results related to various aspects of...

The paper presents the digital economy strengthening that acted as a stabilizer in the economic sector during the Covid-19 outbreak. In the lockdown period, most interactions between customers and suppliers must occur virtually. Although it still makes exceptions, digital operating is the only way to...

Agriculture is the backbone of our country’s economy. At present cultivation has turned into more significant to meet the needs of the human race. Though, agriculture necessitates irrigation and by each year we have additional water utilization than rainwater that became serious for growers to discover...

The high groundwater table and the placement of the basement below the groundwater level give rise to several issues, one of which is groundwater seepage. The accumulation of groundwater seepage on the basement floor surface leads to discomfort for the building users, as observed in Building X, located...

Some challenges cannot be avoided, and there is increasingly fierce competition makes business actors compete to create new opportunities and things to face competitors. Updates to creative and innovative business ideas continue to emerge, creating new opportunities and a fairly broad market. Therefore,...

Land-use and land-cover change is a common and prominent feature in the haor region. Tanguar Haor, one of Bangladesh’s largest freshwater wetlands and a Ramsar site, has undergone significant ecological transformations over the past four decades due to anthropogenic pressures. This study analyzes land-use...

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...