Advances in Engineering Research

The paper consists of calculation of strains in the In1–xGaxAs/GaAs heterostructure and their dependence on relation between the thicknesses of contacting semiconductors. It also features the examination of how concentration of components and relation between the thicknesses of layers influences the...

The paper studied the influence of processing parameters on the foam structure based on numerical simulation of tensile spline. Using CO2 and N2, single factor experiment method was employed to perform the experiments. In the study, volume filled at start of foaming, initial bubble radius, volume filled...

A new algorithm based on endpoints of skeleton is presented to efficiently get the number of fish in this paper. Considering the complexity of underwater environment like lack of light, this paper presents an improved adaptive thresholding method to segment the fish image better. In addition, the object...

Dragon boat sport are the traditional Chinese cultural and sports projects, the integration of national cultural connotation, mass fitness and modern athletic characteristics, is rapidly moving towards international and modern road. In order to further understand and improve the technical characteristics...

Computer-aided diagnosis has received intensive study in recent years, especially in an aging society which unforunately has limited medical resources but surging medical demands. It's a challenging work to determine health conditions with knowledge of dynamic successive long-term ECG.RR-Lorenz plot...

Taxpayer compliance is an act of obeying and being aware of taxation provisions. This study aims to analyze the factors that influence taxpayer compliance in the city of Jambi. The variables examined in the study were tax amnesty and taxpayer knowledge. Respondents in the survey were taxpayers, both...

Bangladesh is in great need to find renewable energy sources for its fast-developing industrial sectors. The main objectives of this research are to design and fabricate a small-scale efficient Tesla Turbine for remote areas and test it through experimental investigations. Performance analysis of the...

Over the past four decades, artificial intelligence technology, particularly in artificial neural networks and related methods, has advanced rapidly. Deep learning, a major branch of artificial intelligence, has proven its effectiveness in addressing various problems, especially those involving large-scale...

The dynamic world of e-commerce demands efficient recommendation systems to help users discover relevant products. However, a major hurdle arises when new users join a platform. Without any historical data, traditional recommendation techniques struggle to provide personalized suggestions. This ‘cold-start’...

The four‑bit absolute‑value detector (AVD) is an indispensable primitive wherever signed sensor data must be reduced to magnitude before thresholding, from cortical implants to wearable audio codecs. Yet the seemingly trivial operation hides a rich three‑way trade‑off among delay, energy and area that...

In view of the complex formation pressure characteristics faced by the 8000 meter exploration in the middle section of the southern margin of the the Junggar Basin, the pore pressure, fracture pressure and collapse pressure of the formation were calculated by using the logging data and GMI software,...

This research was conducted during PRALA (Sea Practice) on the MV. Double In, managed by CHH Shipping Management Co. Ltd., over a period of 12 months and 2 days. Data was gathered through on-site observations, ship documents, and photographic records, and analyzed using SPSS. The results revealed a buildup...

This study presents the design, modeling, and simulation of a high-performance optical sensor for magnetic field detection, utilizing Photonic Crystals (PCs). The sensor leverages the Photonic Band Gap (PBG) property of a two-dimensional (2D) PC to precisely control light propagation and achieve miniaturization....

In this paper, an alternative control strategy based on the proportional integral (PI) observer is developed for attitude stabilization of a quadrotor subject to external disturbances. The PI observer has a simple structure with only two parameters that are needed to tune. Moreover, unlike high gain...

With the development of information technology, large scale intelligent information system has been widely used in the field of electric power enterprise management. This paper combines data quality characteristics and the significant problems that power system faces with, Constructing the index system...

More and more (Field Programmable Gate Arrays)FPGAs were used in space missions, due to the characteristics of aerospace equipment ,such as satellite. The correctness of FPGA design was not only determined by the code, but also need FPGA design suite to complete the process which generates the circuit,...

with the large scale of MOOC on-line, which is bound to have a profound impact on the teaching methods of computer courses in our country. Based on the in-depth study of MOOC, this article points out the advantages and disadvantages of MOOC. Meanwhile, it proposes improvement methods on the curriculum...

The MoO3 samples were synthesized by rheological phase-hydrothermal method, and annealed at 450-650°C for 4h. The efforts of different annealed temperatures on the morphologies and electrochemical properties of the final products were systematically investigated. The MoO3 samples annealed at 550 °C exhibit...

The purpose of this study was to investigate the physicochemical properties of tapioca starch (TS) after micronization.The thermal properties analysis suggested that the gelatinization temperature was decreased after the treatment of micronization and decreased with increasing processing time. Solubility...

Uncertain errors induced in construction process could affect the stability of free-form shells. Considering shell thickness deviation, the stochastic characteristics of buckling loads are investigated using Latin hypercube sampling coupled with Newton-Raphson method. In addition, a sensitivity analysis...

In this paper, the research results of mechanical property and durability of high-strength concrete subjected to high temperature were comprehensively reviewed, the research status of mechanical property and durability of high-strength concrete at elevated temperature were discussed, and existing problems...

The drag reduction effects of a non-Newtonian fluid (CMC aqueous solution with 50-1000wppm) in a sinusoidal wavy-walled tube were investigated experimentally in the Reynolds numbers range from 25 to 360. Based on the pressure drop method, drag reduction was measured and the maximum drag reduction achieved...

PGP virtual disk encryption technology is a double-edged sword, on the one hand it is helpful to prevent the user’s sensitive information on the disk from being stolen or tampered. On the other hand, some criminals take advantage of PGP virtual disk encryption to engage in illegal activities. This paper...

The tamping operation is employed to restore the geometry of railway track distorted by train traffics. In order to study the micro mechanical properties of railway ballast under tamping operation, the analysis model of railway ballast under tamping operation is created using the discrete element method,...

Fractal theory is a very effective method for investigating pore-structure of fibrous porous materials, which build a bridge between micro-morphology and macro-performance. Fractal dimension was calculated based on the fractal theory and combined with computer virtual building model technology, which...

In this paper, we used L-aspartic acid, dimethyl tartrate and propionic anhydride as raw materials to prepare a new thermo-sensitive poly(N-propionyl-L-aspartic acid-co-dimethyl tartrate) (PPADT). The chemical structures of the intermediates, monomer and polymer have been confirmed by FTIR and 1H NMR...

The concentration of methane can play a vital role in choosing the application of CBM (coal bed methane) utilization technology, which can determine the utilization mode as well as the degree of difficulty. In recent years, with the rapid development of CBM utilization industry, especially the breakthrough...

We establish a three dimensional current field using Mike3 Flow Model in the Beibu Gulf. The accuracy is verified by comparing the current data with the measured data of an offshore oil platform. We calculate the wind-tide coupled current by adding the daily mean wind field. On this basis and decoupling...

There are derivative many problems from electromagnetic (EM) wave radiation with the development of communication technique. To protect the human body from the EM radiation, in this study, the antibacterial nylon (AN)/ bamboo charcoal polyester (BC-PET)/ stainless steel wire (SSW) metal composite yarns...

Wind power is one of the clean energy that has been developed rapidly in China recently. Offshore wind power is paid high attention all over the world for its advantages of less occupation of land, high consumption hours, and rich resources. The authors discuss the offshore wind resources in the coastal...

The fundamental characters and failure mechanism of the landslides related to freeze-thaw action are introduced in this paper. Monitoring of the ground temperature and the pore water pressure at the landslide located at the side of the Heifangtai loess platform, Gansu province suggested freezing can...

Long-life housing is a type of housing that can accommodate the function and performance to meet the needs of society and residents by changing and replacing infill parts such as exterior parts, interior parts and facilities that have a short life and are sensitive to social and functional changes while...

With the acceleration of industrialization and urbanization, and lead pollution of soil area in our country, blood lead happened frequently in recent years, the lead pollution of soil is a problem that cannot be ignored.This paper briefly illustrates the soil lead pollution present situation, summarizes...

This paper presents a hardware implementation of rate control system with scene change detection for constant bit rate traffic of Motion JPEG2000. The input frames are divided into groups, each group contains one key frame, and a frame which originally is not a key frame of a group is changed to a key...

This paper studied on the fatigue experiment of two CRTSIII slab ballastless tracks on subgrade under high-speed train load, one was the track structure with self-compacting concrete thickness of 70 mm (the 70's), the other was 90 mm (the 90's). The two tracks were made of 1:1 full-scale test models...

A reliability adaptive modeling method for CNC Machine Tools based on kernel function is proposed. Choosing Gaussian distribution as the kernel function, the optimal model with least integral square error as the objective is established, and cross-validation method and traversal search method are used...

Flipped classroom is a new teaching mode. The flipped classroom has injected fresh vigor into the modern classroom teaching. The analytical chemistry course was took as an example to design flipped classroom teaching model. Students should make full use of open education resources, virtual experiment...

The aim of this paper was to investigate adsorption of cupric ionin wastewater with a new type of adsorbent, namely natural oxidized celluloses(NOCs), whichwas synthesized in a specialselective oxidation system withraw cellulose. The characterization of NOCs was investigated by FTIR and the morphology...

The purpose of the study was to determine key parameters influencing the quality of cider. Six apple grades of different ripeness period were considered: Ulyanishchev's Memory, Berkutovskoye, Ligol, Rossoshanskoye Striped, Bogatyr, and Lobo. All fruits were grown in the pomological garden of Voronezh...

This paper is devoted to the development of multicomponent binders with the usage of finely dispersed mineral additives. In the course of the research it was found that mineral components of binders, combined with chemical additives favorably affect the process of structuring of cement stone, control...

Cleaning robot can provide cleaning services, which is greatly needed in the market. Matlab software can be applied to better conduct the simulation of cleaning robot controller, which can solve contradictory problems between requirements of students for the class and actual class environment, and can...

Herein there are the results of a tool and visual assessment of condition of excavations, border massif of rocks and anchor support elements influenced by flooding and further drainage, seismic and shock waves dynamic loading and high temperature short-pulse. The extent and term of the mine being under...

Due to the need of modern production, the future market of the robot is more and more extensive. In this paper, we study the trajectory planning method of robots with six degree of free and put forward two algorithms of smooth arc movement trajectory planning for the six degrees of freedom robots to...

By introducing a homogeneous kernel of 0-degree with an independent parameter ,and estimating the weight function through the real function techniques, we give a multiple Hilbert type integral inequality with a best possible constant factor, in which the best possible constant factor also contains hypergemetric...

The freezing disaster is one of the main disasters in the cold geotechnical engineering. Due to the complexity of geotechnical engineering problems, many problems can not be evaluated by the accurate mathematical model. In this paper, from the point of view of system theory, the basic characteristics...

The 'social network' which is formed by user behavior and its interact relation, could link user wisdom quickly, gather huge amounts of information, accelerate the sharing of knowledge and creation. Xiaomi community using grasping user comments or response data on community BBS section of typical products...

This study aims to identify and describe the Regional Financial Management Training Program which in principle leads to improvement. The method used in this evaluation study is a quantitative descriptive method with a qualitative study. The research design used in this study was Kirkpatrick’s model....

The development of technology is overgrowing. This will affect human life, especially in the online entrusted service business. An entrusted service is an activity carried out by someone who is travelling to a place and then opens an entrusted service for purchasing goods or sending goods. Currently,...

East Kalimantan is an area which rich in natural resources, as a Mahakam sand and local stones. They also have coconut fiber waste to increase the flexural strength of concrete. This material is still underutilized by the people of East Kalimantan. But, they prefer to use materials from Palu, Sulawesi,...

Socio-Scientific Issues (SSI) is a controversial topic that arises from advances in science and technology (IPTEK). In implementing Socio scientific issue as a learning context, it is necessary to study literature for investigating the selection of social-scientific issues. The aim of this research was...

This study explores how construction workers, site managers, and regulatory actors in urban Ghana understand, negotiate, and enact safety within the everyday realities of fast-growing cities. It aims to uncover the cultural norms, experiences, and informal practices that shape safety outcomes on construction...

To understand the influence mechanism of basalt fiber (BF) on the strength of cement-based materials (CBM), we conducted a study examining the effects of BF with different lengths on the strength of CBM through indoor single-factor tests and microscopic techniques. Our findings reveal that when the length...

Water allocation is the process of regulating water provision in a certain amount and time, based on water availability and user needs, according to the type of use and priority order. This requires integrating all water users’ needs according to priorities, considering water availability. Tukad Oos...

This work is concerned with mechanochemical capture of carbon disulfide (CS2) by magnesium-carbon composite from ball-miling of Mg and carbonized anthracite. XRD analysis shows that cubic crystal MgS forms when milling time increases more than 1.0 h. The sulfur contents in composites from 0.5, 1.0, 1.5...

Soil salinization has become a global problem. This test used the method of spraying different concentrations (1, 5, 10, 20 mol-L-1) of ABA to lettuce leaves respectively, with spraying water as control, to discuss the effects of exogenous abscisic acid (ABA) on photosynthesis of lettuce under NaCl stress....

Red-emitting Europium( ) doped SrAl2B2O7 phosphors have been prepared by precipitation method, and its luminescent properties under UV excitation have been investigated. The phosphors are characterized by x–ray diffraction (XRD) and photoluminescence spectra. The SrAl2B2O7:Eu3+ phosphors can be obtained...

Polymers such as polyethylene (PE), polypropylene (PP), polyvinyl chloride (PVC) are important downstream products of Petrochemical industry, which play an important role in the national economy and the people's livelihood. While, in the process of ageing detection and recycling, there remain something...

In recent years, the demand for coke increased greatly in the modern industry, while the number of coal which is suitable for coking fell sharply and the quality was declining. Based on this background, the coal coking industry had to start the new energy more efficient and energy saving. We all know...

In order to realize the fast excavation in hard rock roadway with large footage, according to experience and parallel hole cut blasting theory, a diamond central interval charging parallel hole cut blasting experiment scheme was designed, and a series of test was finished in Beishan test site. But through...

An experimental method and reconstruction arithmetic of temperature field are proposed. The fast Fourier transform followed by a digital low-pass filter and the inverse Fourier transform were applied to interference fringes for removing speckle noise, so that airflow field phase information is in high-contrast...

The paper aimed at the problem of machining of fortified drill collar which common turning has the low efficiency. The author design a numerical control radial feed whirlwind milling device on the basis of inner whirlwind milling equipment, the device can be numerical control radial feed in machining....

Matrix is a mathematical object, commonly used in scientific computing and engineering calculation. In the data structure we are not interested in data itself, but how to store the elements in the matrix, and make the various operations can run effectively. The main purpose of the compressed storage...

According to designed parameters of self walking excavator, including the radius difference between the head and end of a section, the length of a section of the excavator, and the radius and width of the designed construction circular curve. The relationship is established between above parameters and...

In this paper, the signal collected by WM8731 that is a high resolution analog to digital controller (ADC) is set to establish custom NIOS II central processing unit (CPU) and peripheral controlling in the system on a programmable chip (SOPC) Builder, systems developing tool, of Altera Quartus II that...

In this paper, a moving object extraction algorithm based on hybrid background subtraction and pixel mean is proposed to solve the problem that the existing object extraction algorithm can not adapt to the moving environment. The algorithm operation process includes target location identification, domain...

In this paper, the pressure model of an electro-hydraulic proportional variable plunger pump is set up through mathematical modeling, and the simulation analysis is carried out with the MATLAB tool. The dynamic response characteristics are obtained, which provides some reference for the research of the...

The results of a study of the change in the microstructure of welded joints of rail steel are presented. Comparison of various methods of structural factor analysis is presented. Comparative studies of various methods of analyzing the structural factor in welded joints of K76F rail steels according to...

The digitalization of archives is to transform the file information of various traditional media such as paper, photographs, audio and video, and film, into digital information through computer technology, and complete the basic construction of file informationization. This information is connected and...

The "national new urbanization plan (2014 - 2020)" was promulgated in China in 2014, will have a profound impact on medium and long term energy demand in China. This paper put forward economy-energy-environmental model system, set up two scenarios (baseline scenario and new urbanization scenario), analyzed...

To guarantee personal and property security, the operational status of wire ropes need to real time inspection.in this study , the static magnetic field of wire rope with different broken wires width was analyzed and calculated using finite element method, and the software named Ansoft Maxwell is used...

The development of internet leads the innovation of the dispute resolution. As the innovative achievements under the strategy of "Internet+", online dispute resolution (ODR) is increasingly applied to the resolution of the disputes. Since ODR are cheap, convenient and flexible, it seems appealing to...

A digital image processing experimental platform is designed based on MATLAB GUI. This platform has good interactivity and expansibility, which integrates multiple functional modules including low-level processing module, noise adding module, image denoising module, image segmentation module, and image...

The world’s most discussed issues are energy and health. Concerns about environmental pollution and health motivated the automotive manufacturers to find solution to reduce the exhaust emission gas. One solution developed at this time is to replace the conventional into electronic fuel injection system....

Sea ice imposes additional loads on offshore wind turbines (OWTs), where extreme ice loads may lead to structural overturning, and cyclic ice loads can cause resonance and result in fatigue accumulation. A substantial amount of research has been carried out on the ice interaction with OWT support structures,...

Changes in land use inevitably influence flood discharge, and the balance of the watershed ecosystem is significantly affected by land use and land cover alterations. Both land use and climate change play crucial roles in shaping the hydrological cycle, and modifications in land use can notably impact...

With the rapid development of IT technology, the field of industrial control is constantly innovating and developing, and PD control algorithm, as a classic and effective control method, will continue to play an important role in this field. By applying the PD control algorithm to the motor control,...

In contemporary society, the growing emphasis on quality of life has underscored the importance of a reliable hot water supply. In this paper, we compare the performance of home water heaters controlled by traditional proportion integration differentiation (PID) methods with those controlled by fuzzy...

Zn-30Al-xCu (x=0, 1, 2, 4) alloys were prepared by the spray atomization and deposition technique. The microstructures of the spray-deposited alloys were investigated by means of scanning electron microscope, transmission electron microscope, X-ray diffraction. The results indicate that the 1 wt. % Cu...

PTFE/aramid woven fiber liners were modified by acrylamide, phosphate ester coupling agent, respectively. The effects of the modified liner on the friction coefficient, the wear loss and the friction temperature of self-lubricating spherical plain bearings were investigated by using self-made compound...

Charger control system is the core components of soft switch charger,its performance determines the technical level of the charger.This paper is based on The ADuC831 MCU and UCC3895PWM, Studies the control system of 7.5KW soft switch charger,designs the hardware system and software system. The system...

A teaching experiment was developed to observing and measuring to cutting process, to improve the teaching performance of the “fundamentals of mechanical manufacturing technology” course. The experiment is carried out on a column milling machine tool; the cutting tool is fixed on the overarm; the board...

With the development of modern society, private custom glasses has become a trend for future development. Traditional handmade time about two weeks,and processing fee is also high. But if you use 3D printing processing, it will reduce the processing time and reduce the cost of processing, and more precise....

In this study I-V characteristic, temperature dependence of resistivity, thermopower, were investigated for thin films on the basis of Ge2Sb2Te5 doped by Bi. Resistivities, ratio of the resistivities of amorphous and crystalline states, activation energies of conductivity, temperature of phase transition,...

Detection of pile foundation is one of the most important procedures in the evaluation of pile bearing capacity and pile quality. In this paper, the application of the transient Rayleigh technology in detection of pile foundation (pile integrity, pile verticality and pile bearing capacity) have been...

The main differences of coal bed methane from other unconventional hydrocarbon resources are shown. Characteristics features of hydraulic fracture operation of coal seams are analyzed. The factors, affecting the permeability of reinforced crack of hydraulic fracture are marked. And the modeling peculiarities...

In order to solve the inefficiencies, labor-intensive, inconsistent quality and other shortcomings in traditional package bag artificial production, a prototype of double-position automatic bagging machine based on Omron PLC and HMI was developed by the authors.Considering both industrial site requirements...

For the purpose of solve seawater pipe's anti-corrosion materials problem and it is allÿofÿvarieties, this thesis come up with the copper alloys-nickel composites by Laser direct writing and the method's application and equipment, this thesis also recommend the copper alloys-nickel composites' laser...

Rock breaking, rock excavation, concrete breaking, foundation rock breaking, trenching, tunnel widening in sensitive environments such as close to high rise buildings, schools, hospitals, roads, electrical installations, existing and operative dam foundations, piers, pipeline laying below ground, indoors...

Recently, scholars and specialists in the field of electronic commerce have generated a compelling list of website attributes that engender trustworthiness. The introduction of new information technologies has always been accompanied by security concerns, and the future of electronic commerce depends...

The overhead crane is one of dangerous machines. It may cause personnel injury, or even property damages if any accidents happen in working area. Thus, to ensure safe operation, the load size, route and working environment should be taken into consideration. This study developed a safety alarm device...

Acorrding to the poor effect of traditional voltage stability method in the actual power network, a new method, combination of the P-V curve and modal analysis, was put forward. First, Kp(power reserve coefficient) was calculated to measure the power system static voltage stability margin through P-V...

Aimed at the complexity of the fault diagnosis of radar servo system on the ship, the pater puts forward the method of fuzzy fault tree analysis. The paper constructs the fault tree for antenna not running. And then the quantitative analysis of the fault tree is accomplished by founding models such as...

Voronezh region is the most important agrarian region of the Russian Federation and has the richest land area of 5,221.6 thousand hectares with the most fertile chernozem soils. The region has favorable natural and climatic factors for crop growth, the hydro-thermal coefficient (HTC) is about 1.0. As...

Combining the synchronized phasor measurement unit (PMU), a power system transient stability assessment method based on principal component analysis and support vector machine is proposed. Firstly, the PMU data is obtained through simulation and the original feature set is constructed. Then the principal...

In this paper, exploiting mixed machine learning data processing methods in Raman spectrum, such as data organization, data preprocessing, data analysis, sample classification is discussed. Data experiments showed that the mixed machine learning data processing methods in Raman spectrum had good performance.

Non-pillar sublevel caving mining method is in advancing deep, shallow left lots of safety pillars. It needs to adopt the filling method to improve the recovery for reasonable use of these mineral resources. So, there are two methods of mining occurring together. To ensure the stability of the contact...

We employ two approaches to model a 3D arm. In nonlinear, a parameter-dependent structure has been derived. Due to an existing inverse inertia term in the motion equation, a proof of nonsingular inertia is given. In linear, the Simmechanic Visual plot is obtained. By implementing a position control law,...

The subway station construction risk factors of uncertainty is researched based on Bias network theory, the safety risk of metro station foundation is analyzed taking a metro station in Shenyang as an example. The possible risk factors for the construction process of subway station was collected combined...

The hydropower generating units vibration parameter is an important indicator to monitor its roll-stabilization. To measure the low-frequency vibration of the large and middle scale of hydropower generating units, according to frequency characteristic compensation principle of the vibration sensor, a...

The Government of Indonesia has issued rules on how to avoid covid-19 transmission, namely through various means including social distancing (SD) and physical distancing (PD), at least 1 meter. Until now to run the PD protocol based only on estimates, there has been no safe distance detection tool between...