Advances in Engineering Research

Purpose: To research the relationship between air pollution and the incidence of stroke in Jilin. Methods: a random sampling method was used to select 370 patients with new stroke who were treated in Jilin Central Hospital and Beihua University Affiliated Hospital from October 2016 to March 2017. Pearson...

Pyrolysis characteristics of Chlorella vulgaris (C. vulgaris) (a kind of microalgae) are studied by microwave oven. The effects of different dosages of C. vulgaris, different contents of activated carbon and different microwave absorption on the microwave pyrolysis of C. vulgaris are investigated through...

Diamond-like carbon (DLC) films were prepared on silicon substrate using four different vacuum plasma methods: magnetron sputtering (MS), pulse laser ablation (PLA), ion beam deposition (IBD) and pulse cathode vacuum arc evaporation (CVAE). The microstructure, surface morphology and optical properties...

The corrosion resistance of copper indium-molybdenum alloy layer was briefly introduced, In the acidic solution (0.5mol/L sulfuric acid solution), alkaline solution (0.5mol/L sodium hydroxide solution) and neutral solution (3.5% sodium chloride solution) in the stainless steel substrate and infiltration...

The Islamic banking industry is faced with the problem of a lack of public interest in being involved in Islamic financial transactions. This could cause Islamic banking to be eliminated from the global market in the future. This study aims to examine the factors that influence customer behavioral intention...

Hydraulic engineering involves the utilization of water for various purposes, such as water supply, irrigation and power generation. The efficient utilization and scientific management of water resources constitute an essential research subject. Within the realm of water resources management, accurate water...

Pulsed power is a technology in which a great amount of energy is kept for a stretched time and then released in a single burst to achieve high instantaneous power. To put it another way, if a capacitor or inductor stores 1 J of energy and releases that energy in 1 s, the power at that moment will be...

To study the main properties of the SAC cement in cement-based grouting materials, including fluidity, setting time and compressive strength, a composite grouting material was made by combining ultrafine slag powder with cement. The cement slurry was prepared by replacing different proportions of Portland...

Due to the increasing complexity of coal mine production environment and the rapid growth of monitoring data, the traditional methods are difficult to timely and accurately detect potential hazard and take early warning measures. Starting from existing Graph Neural Networks (GNN) model, this paper innovatively...

Due to the rapid development of the electric vehicle industry at home and abroad, the number of electric vehicles has increased dramatically, and the original charging method cannot meet the rapidly growing charging demand. This paper introduces two ways of wireless charging for electric vehicles, analyzes...

In this review, the dynamics for neuron, neuronal network is introduced, for example, the mode transition in electrical activity, functional role of autapse connection, bifurcation verification in biological experiments, interaction between neuron and astrocyte, noise effect, coherence resonance, pattern...

The paper proposed a rice impurity vision inspection method based OpenCV, which was using OpenCV software development tools to significantly enhance impurity information and showing details of impurity. Secondly the paper could detect rice impurity and then improve accuracy of vision inspection by OTSU...

Natural ventilation has been an essential building technology for such a long time. As a significant role in the development of architecture design, the natural ventilation was replaced by the development of air conditioning technology for some time. However with the energy crisis and the greenhouse...

In this study, we investigate the effects of three types of non-structural reinforced concrete (RC) facade walls on the impending advanced failure of an RC frame. Linear and nonlinear static analyses are performed for RC frames with and without non-structural walls under three different column loss scenarios....

The power industry is the foundation and pillar industry of the country, and it is also an important industry related to the people's livelihood. After the information construction in recent years, the power plant has built the information system of power information data communication network. The safe...

This article by joining the 20ppm water stable medicamentin the standard water sampleand the different dosage the SO42- ion carry onthescaleinhibition performance and the electronic scanning test, and concluded that inhibiting performance plummets with the increase of the amount ofSO42 – ion and explains...

In order to analysis marine detection performance of the satellite-based AIS receiving system and provide a reference for related algorithms, the relationship between signal detection bit error rate(BER) and detection probability is analyzed and simulated, besides, the detection BER is simulated at different...

We have studied the electronic properties of MgO by first principles (CASTEP program). The calculated band gap of MgO shows MgO is an insulator. Pressure increases the band gap from 4.253 to 7.585 eV. The band above the Fermi level shifts to higher energy, while the band below the Fermi level shifts...

Graphite/phenolic-based composite was fabricated through hot compression molding followed by heat-treatment process. The length, density, flexural strength and electrical conductivity of composite are analyzed to determine the influences of heating rate on the physical, mechanical and electrical properties...

Amphibious vehicle for water resistance are complex and difficult to accurately estimate oh, analyzing the force characteristics affecting water sailing by sailing amphibious vehicle posture resistance characteristics of the vehicle. Amphibian Vehicle analyze the composition of the water resistance,...

One of the most topical problems of the electric power industry in the transport sector is the problem of improving the energy efficiency of vehicles and the transport system as a whole. Electric traction is a significant share in the overall structure of consumption of urban electric transport, and...

In order to reduce fuel consumption and vehicle exhaust emissions, it is necessary to develop new designs, such as flow control using jet actuators, to reduce vehicle aerodynamic drag. A numerical model was developed based on the process of airflow passed through a micro-jet actuator. Under different...

In this paper, the basic characteristics of fluid flow in low-speed DC wind tunnel are described. Under the premise of clarifying the basic characteristics of low-speed DC wind tunnel, a full-flow turbulence model is proposed. The basic method of full flow field simulation is described.

To explore the development process of a thick fog in Jiangyin during winter, this study employed in this research include the elements of ship-borne automatic weather station, the infrared and visible cloud images from Himawari-8, and the data of wind, humidity, pressure fields, and sea temperature in...

This study analyzes the performance of solar modules in an off-grid Solar Power Plant (PLTS) system in Lasiana, Kupang City. The off-grid system operates independently and is not connected to the main power grid, making it a vital solution for remote areas without electricity. The study aims to evaluate...

This study’s objective is to examine the determinants of regional financial independence, namely local own-source revenue, balanced fund, and other lawful local revenues. The method used was multiple regression analysis in provincial governments of Maluku and Papua in 2010-2019. The Government of Maluku...

Environmental conditions of many marine bays in China have been seriously polluted along with the rapid developing of economic after the reform and opening up. This paper revealed the environmental conditions of Jiaozhou Bay, Shandong Province, Eastern China based on the analyzing the content, pollution...

With the integration of computer technology, network technology and mobile communication technology continuously, the formation of personalized resource recommendation has become possible. Based on teachers' demand investigation and analysis, this paper analyzes the teacher system architecture, personalized...

Unified viscoplastic constitutive equations are established in the crystal slip systems on the basis of the theory of crystal slip. Plastic dashpots reflecting the material transient response and Newton dashpots mirroring the material viscosity are introduced in slip systems to establish the viscoplastic...

Aimed at the problem of the ability of high-rate rocket telemetry data process is limited, this article analyses the characteristic of telemetry data process and put forward an architecture of distributed process. And the keys of system are explained which contain telemetry data mapped, data fused and...

Sensitivity study, the premise of the analysis of reservoir damage mechanism, is significant to optimize all the links of drilling and development process, as well as to develop the systematic oil and gas reservoir protection technology scheme. To study a variety of methods developed in recent years...

This Nondestructive inspection of mechanical equipment is to diagnose the mechanical the wear and corrosion of the machine under the condition of no disassembly.With the rapid development of port industry, the number of all kinds of port operating machinery is increasing, and the complexity of the equipment...

For the problem of enforcing mandatory access control onthe data nodes in Hadoop, there exists some limitations by analyzing its own the token-based authentication scheme. Therefore, we use the hash chain password method to improve the original authenticationscheme. By analyzing the security, the novel...

A compartmented gas reservoir is defined as a reservoir involving two or more distinct blocks in hydraulic communication. A common one is a fault block gas reservoir separated into different fault blocks by partially sealing faults. The fault plane in fault block gas reservoir works as the migration...

We perform first-principles calculations to study the electronic structures and optical properties of rutile SnNxO2-x as a possible photocatalytic material. It is found that N incorporation lead to the enhancement of p states in the energy gap and the decrease of band gap. The optical transition between...

Steel structural connections are integral parts in steel structures. They are widely used in building frames to join different structural members together as well as to support gravitational load, shear load and bending moment and to transmit them to the adjacent structural components. However, gradual...

In this paper, we mainly suggested further methods to find more minimal negatively S-transitive closures of a fuzzy relation on a finite universe based on the construction proposed by Han. At the same time, an example was given to illustrate our methods by computer programming. As a result, some minimal...

In this paper, we introduced and analyzed automobile engine’s common linear exhaust gas recirculation system’s features ,with a method of comparison, based on my years of vocational colleges' Automotive Electronic Control Engine Construction and Maintenance teaching practices. Among these includes the...

The article presents the comparison analysis of wireless technologies Wi-Fi and Wi-MAX. Today, these technologies are key in modern society, no organization can do without these technologists. The aim of the scientific article is to identify the most popular and sought-after wireless technology, to determine...

The setting of parameters in the support vector machines (SVM) is very important with regard to its accuracy and efficiency. In this paper, we employ the firefly algorithm to train all parameters of the SVM simultaneously, including the penalty parameter, smoothness parameter and Lagrangian multiplier....

This Surface sediment samples were collected from Sanmen Bay in Zhejiang. The distribution of total concentration of five heavy metals (Zinc, Chromium, Cadmium, Copper, and Lead) was determined, and their speciation using BCR sequential extraction procedure was investigated. The pollution level and ecological...

Transportation is a key element in the development economic. According to ministry of transportation report there is a distinction frequency between the minister target and the total frequencies result in 2017. Researcher interested to explore the opportunity to optimizing the airlines serve pioneer...

Traditional forecasting models often struggle with multivariate and multiple time series data, especially in the presence of promotional activities that introduce nonlinear patterns and seasonal variations. More recently, statistical models encompass promotional features e.g. price cuts, display time,...

This paper aims to describe the scientific research trend on creativity in physics learning. Bibliometric analysis was used in this study to explore more about creativity in physics learning in the Scopus database (2011-2020). The total sample is 179 documents—no more research on creativity in physics...

Even with the major progress in diagnostics and treatment, tuberculosis (TB) is one of the major causes of mortality related to infections in the world. Despite a low sensitivity and inter-observer variability, microscopy of sputum smears remains the most frequently used diagnostic technique in resource-constrained...

There are several problems in air current conditioning system, such as low energy efficiency, equipment aging, low operation efficiency, unnormal function, and poor thermal comfort. In order to better deal these issues, some renovation methods (including installation of ground source heat pump system,...

In spam filtering filed, Naive Bayes algorithm is one of the most popular algorithms, but its conditional independent assumption makes its reliance on training sets of sample space distribution. In order to improve the accuracy rate, sample space became so complex, resulting in the algorithm of time...

Speech coding is a technique that transforms speech signal of big data to digital signal of small data. This characteristic is suitable for the underwater acoustic transmission of narrowband communication. It's one of the support to underwater acoustic high speed voice communication on the source code...

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...

The development of modern methods of analysis and synthesis of electromechanical systems, including the main structural link of which is an electromagnetic drive, causes an increased interest in the creation and improvement of mathematical models of machines and devices that most objectively reflect...

Analysis of the basic situation of water resources in china. The development and utilization of water resources and the protection countermeasures, in order to promote the sustainable development and utilization of water resources.

In this paper, a predator-prey system with Beddington-DeAngelis functional response is studied, where the n predators prey on one prey. Using the continuation theorem of coincidence degree theory and analysis techniques, a criteria for the existence of periodic solutions of predator-prey models with...

The floating-type double-hinged wave energy converter (WEC) is developed to realize the conversion of wave energy. Based on the linear wave theory and wave-body coupled interaction, the nonlinear coupled equations of the heaving-pitching motions for the buoys are established. Under the condition of entirely...

The trace heavy metal elements occur in coal during the coal-forming process and enrich on the bottom ash or fly ash after coal combustion, then escape into the air in the form of particulate or vapour, causing certain environmental hazards. In this paper, control methods for three important trace heavy...

With the rapid development of digital information technology and network technology, information society not only gradually changes people's lifestyle and work habits, but also challenges the traditional residential. Smart home arises at the historic moment. This paper firstly introduces the concept...

Supporting facilities in communities cannot support home-based care of most aged people under the subject endowment mode of “taking home-based care as basis and community-based care as dependence”. At present, research on supporting facility configuration in communities for aged people is lacked in China...

With the shortage of natural resources and the increase of solid waste discharges in the world, many countries take solid wastes as "resources" for comprehensive utilization. Oily sludge, as one of the solid wastes, contains a large amount of organic matter and harmful substances, which can be paralyzed...

Studied the waste expandable polystyrene (EPS) foam to reproduce styrene-acrylate emulsion (SAE) latex and applied in cement mortar. The results showed that the increase content with regenerate SAE, the amount of water used in mortar was decreased and the water reducing rate was increased gradually,...

The algorithm of compressive sampling matching pursuit (CoSaMP) is the performance of this algorithm is restricted to the choose of it's initial support set. If inaccurately choose the initial support set, it will not only affect the accuracy of reconsitution, but also reduce the speed of reconsitution....

With the increasing prevalence of epidemic respiratory diseases and lung cancer in recent years, intelligent diagnostic technologies based on chest X-ray (CXR) image recognition have become a research focus. The breakthrough development of deep learning has provided a new paradigm for automatic CXR image...

The Risk-Based Inspection (RBI) is a component of the whole asset integrity management. The RBI procedures grant a reasonable base for inspection of projects and efficient tools to support the operation. This study aims to overview the performance aspects of RBI from the perspective of offshore structures....

Present study shed light on the networks, hot topics and clusters of big data via Social Network Analysis based on the retrieval of Internet. The findings of this study include: The term 'big data' has strong ties with service, platform, analysis, technology, application and enterprise. The technologies...

This research project applies solar energy photovoltaic power generation system to remote rural residences in order to solve the power consumption problems of the villagers. And this project is the first demonstration project of the application of new energy—solar energy, in the production and life at...

While the QR code has been used in lots of aspects of people’s life, the application of this technology in substation operational maintenance is still in its infancy. The QR code is based on the Equipment Account Management, Defect Management, Maintenance Management and Equipment master system which...

Cultural industries are potential emerging industries in the 21st century. Historical and cultural heritage in Guangdong province are concentrated on the Pearl River Delta. The paper explains the foundation of development cultural industry cluster in the Pearl River Delta form demand, manufacture and...

Multiple attribute decision making (MADM) problems are to find a desirable solution from a finite number of feasible alternatives assessed on multiple attributes, both quantitative and qualitative. In the recent years, MADM has received a great deal of attention from researchers. This paper studies the...

This paper employs a revised input-output model to empirically investigate the CO2 emissions embodied in export based on the input-output (I-O) table in China from 1999 to 2008. The key results indicate the carbon emission embodied in exports has risen from 0.38 Gt in 1999 to 1.19 Gt in 2008, in which...

Construction is one of the major industries that generate wealth to China. Construction industry contribute a large of portion of solid waste stream which causes the grave negative impacts towards environment and ecosystem in China. There are increasingly serious problems that are faced by Chinese government...

For the reliability problem of the 90 ° bend optical fiber embedded FR4 substrate in the bad service environment especially for military, the easily failure area of this modal under environments of random vibration and characteristics of interface cracks extending are researched. Firstly, modal analysis...

In this study, a new type of mechanically adjustable fluid viscous damper is developed for specific requirement. According to its operating principles, the output force of the damper is derived based on N-S equation. As a third-generation fluid viscous damper, the damping coefficient can be adjusted...

Virtual instrument technology is a connection of general computer and functional hardware module. It is defined completely according to the needs of the user to achieve and extend the functions of the traditional instrument. This paper describes an emulator of machine-electron subsystem based on LabVIEW....

a DFIG high voltage ride-through method with the consideration for the safe operation voltage of the generator unit is proposed in the article. Based on the dynamic reactive support capability of DFIG, during grid voltage swell, the reactive powers outputted by the grid-side converter and the generator...

Due to the limitations of the field of training corpus, the Chinese word segmentation based on statistic results in poor self-adaptability in the field. In view of the difficulty of obtaining large-scale annotation corpus in the target area, this paper proposes an area adaptation method that combines...

The 20th witnessed the resurgence of China’s civil society through the rapid growth of civic environmental non-governmental organizations (ENGOs). Especially since the mid-2000s, ENGOs have gradually begun to pursue policy relevant goals and play a vital role in policy formulation. The political opportunity...

Bandelet transform has undergone two generations of transformation theory development, its main application areas are image sparse expression and image compression, which penec for the first bandelet transform has made an important contribution, it not only involved in the first generation bandelet transform...

Information and cyber security has gained considerable importance as safety of the Industrial Control Systems (ICS). Both safety and security deal with risks. Risk assessment is an essential component of safety and security assurance infrastructure mechanisms. Considering the negative or uncertain influence...

Vibrating screen is one of the important washing equipment in coal washery, and it is mainly used to grading, dielectric recovery, raw coal cleaning, etc. The safe operation of vibrating relates to the coal mine production safety directly. After continuously run for a long time, various faults of vibrating...

To study the effect of surface roughness on the ventilation tunnel wall friction coefficient, the fluent software model was used by changing the height and distance of the tunnel roughness elements and cross-sectional diameter to observe the influence of these control factors in tunnel ventilation. The...

In order to solve the problem of the enterprise website access efficiency gradually declined, and resuting in poor quality of integrated service,This paper introduces the systematic and operability website performance optimization in detail, and then discusses the methods and techniques of the website...

In consideration of Chinese policy on comprehensive regulation of volatile organic compounds(VOCs) and sewage charges, several methods for quantitative calculation of respiratory loss in crude oil tanks are analyzed and compared to evaluate the VOCs emission of petrochemical enterprises reasonably, including...

The weak axis of I-section column welded the vertical stiffener to simulate the form of strong axis connection. The seismic behavior of joint region and the affections on the ultimate bearing capacity of beam by changing the thickness of skin panel have been analyzed. The hysteretic behavior of joint...

The shifting of layers has great effect on the permeability which is a key parameter in resin transfer molding (RTM). In this paper, a mathematical model was developed to predict the out-of-plane permeability of 0°/45° alternative multilayer fabrics with one extreme structure. The global permeability...

A new cationic type asphalt emulsifier of 2-diethylenetriamine methylene-4-nonylphenol was synthesized by the reaction of nonyl phenol, diethylenetriamine and formaldehyde. The synthesis process was detected by online FTIR technique and the intermediate was found. Based upon the experimental information,...

In the paper a new solder is made by adding trace LaNd into Zn9.3Al7Cu alloy to improve the performance through alloying principle. The impact of the content of LaNd on physical properties of Zn9.3Al7Cu solder is investigated. Results show that the density of solder alloys increases with the increasing...

By making use of the experimental system of explosive load digital laser dynamic caustics, it is to carry out dynamic crack analysis for the tip crack initiation and propagation process of precracks near the blast hole and study the directional crack controlled blastting mechanism, thus obtaining changes...

During mining activity, the natural equilibrium of the rock mass gets altered resulting in increase in stress causing sudden, violent failure of rock mass. The stress increases with increase in the depth of mining. The dynamic stress changes caused due to release of strain energy from within the rock...

Geothermal water is a material widely used to provide thermal energy for heating supply in China. To protect the water resource, save energy and ensure the sustainable economic development, more attention must be paid to reach the rational utilization of the geothermal water. In this paper, gradient...

this paper constructs regional recycling economy and its concept model from perspective of system dynamics, it adopts comprehensive weighting method of AHP +entropy method to confirm and analyze weight index of model, and it innovatively uses TOPSIS method, which makes evaluation process much more simple...

It has been proven to be an effective method for reducing the friction and wear of two contact surfaces by introducing a hydrodynamic lubrication mechanism. A linear trapezoidal groove was proposed to accommodate the bidirectional rotation of the planetary gear. Cavitation and fluid rotation centrifugal...

A kind of nano-silica fume coating rubber composite particles was prepared by the Particle Composite System (PCS), and the adhesion performance of composite particles was tested by the high-speed agitating test, the composite particles were filled into the oil well cement slurry to toughen the oil well...

The use of electrical energy is becoming increasingly important in Indonesia, but the energy used is still dominated by fossil fuels by 87.64 percent. As a result, research is required to develop new energy sources. One of the renewable energies, the presence of a permanent magnet power plant, converts...

The present experimental research work aims to investigate how water spray cooling of the surface of solar panels affects the electrical performance, particularly the output voltage. A series of solar panels were tested at various cooling temperatures. Without cooling, the average output voltage of the...

In this paper, the optimization of the performance and exhaust emissions of a dual-fuel diesel engine experimented with Palm Oil Methyl Esters (POME) and LPG was carried out using Taguchi Grey Analysis, Regression Analysis, and Adaptive-Neuro Fuzzy Inference Systems (ANFIS). The JAYA algorithm was employed...

This research addresses the challenges faced by Bank XYZ in assessing loan eligibility through manual analysis of customer data. Utilizing Data Mining techniques, specifically Naive Bayes and Random Forest algorithms, the study aims to enhance the accuracy of classifying customer patterns. The implemented...

In wireless sensor networks, traffic load moment node are changing ;the basis of CSMA protocol for idle channels not do effectively. To address this problem, analysis the lack of basic CSMA protocol, in order to improve the utilization of CSMA protocol idle, we come up with a new protocol which is the...

Targeted at general testing process and index of multiple types of subway locomotive, combining the reality of subways in Dalian, this paper used adaptive particle filter and labview to design a multipaneled detection system for subway running.Actual survey shows that inner race fault and rolling bearing...

Based on micro gas turbine, a wind-solar-gas complementary system was presented to explore efficiently method of new energy utilization. The output characteristics of photovoltaic power and wind power genera-tion were introduced in detail, and the power output according to the corresponding influence...

Caused by the manufacturing process and equipment, dimensional deviations occur in the anchor chain and lead to asymmetry. In order to evaluate the stress in asymmetric chain, this paper uses finite element method (FEM) to model the 76mm asymmetric stud anchor chain and calculate the stress distribution...

Five indexes have been selected to figure characteristics of subgrade: damage condition, structural characteristics, such as height, slope ratio, etc., aftershock strength, features of terrain and physiognomy, rainfall intensity. Fuzzy AHP Comprehensive Evaluation Method, FACEM, has been introduced to...

Crowdsourcing testers don't have to sign any contract, and the anonymous crowdsourcing testers determine the quality of tests.To match the recommended tasks with testers, a two phase task recommendation method based on Top-K algorithm was proposed. Category was introduced to reduce time complexity of...