Advances in Engineering Research

Buggy development is increasingly rapid with its application to tourism facilities such as hotels or golf courses. The development of electric vehicles is certainly inseparable from the energy source or energy storage component, better known as the battery. The battery component is an important part...

A numerical code was developed to investigate the characteristics of drag and heat reduction by the lateral jet in supersonic flows, the Reynolds-average Navier-Stokes (RANS) equations was solved by using high resolution upwind scheme AUSMPW+, three order MUSCL reconstruction method and k- SST turbulence...

New urbanization is an important engine of future economic development, how to use the powerful tax policy to facilitate this process, it is particularly important. In the analysis of the traditional external effects of urbanization development, based on in-depth analysis of the operating mechanism of...

In order to assess fire vulnerability of old buildings quickly and reasonably, a model for an assessment system of fire vulnerability of old buildings was built, based on the theory of fuzzy comprehensive assessment. Based on the analysis of the building fire spreading process and the mechanical properties...

This Ab initio density functional theory calculations have been used to study the properties of point defects for hexagonal close-packed (hcp) Dysprosium (Dy), e.g., the formation energies of self-interstitial atoms (SIAs), mon-vacancy, interstitial H atoms and interstitial He atoms. The results indicate...

In order to explore the dew condensation phenomenon, the experiment was settled. Getting use of poplar stick during the growing period of 2015(from the end of the Apr. to the middle of the Nov.) in suburb of Changchun City as ground monitors. Through using software of SPSS 19.0 to analyze the data. The...

Information asymmetry is one of the most important dynamic properties of complex networks. It has important significance to explore the effect of information asymmetry on cascading failures for realizing cascading dynamic properties. In this paper, after analyzing the information asymmetry during the...

Recent years, the “green” building is booming. As an important component of this environmentally friendly building, the composite wall insulation system has attracted a lot of attentions. In this paper, the widely used extended finite element method (XFEM) is adopted to analyze heat conduction problem...

Metal-organic frameworks (MIL-100)/graphene oxide composites (MOFs/GO) with different graphene oxide (GO) contents were prepared under hydrothermal conditions. The resultant products were then characterized by powder X-ray diffraction, infrared spectra, thermogravimetric analysis and nitrogen adsorption...

The current number of mobile Internet users has far exceeded the number of PC Internet users. The construction of college mobile website is behind the PC website. An innovative idea which integrates mobile website and computer website into one system was proposed. Content management technology is used...

The warpage in a glass fiber-reinforced polyamide molded part caused by the sharp corner effect and differential shrinkage could be effectively reduced by optimizing the injection process parameters using numerical simulations. The results showed that adopting a three-gate injection method could effectively...

Development of effective bottom hole cleaning equipment from junk is an effective way of enhancing productivity of drilling operations. The article describes the construction of the near-bit for enhancing bottom cleaning of vertical, slanting and horizontal wells from junk during drilling by a roller...

Three-dimensional digital image expression model generalizes two-dimension morphological algorithm to three dimension, giving embedded wavelet image encryption algorithm based on three-dimensional digital image and its application in track and field route optimization. As to the three-dimensional digital...

Nowadays, with the university expansion and the increase of students' number, traditional written examination model is still adopted by universities, colleges and social organizations. There exist many problems in written examinations, such as complex exam procedures and prone errors. With the rapid...

Amorphous (Fe0.5Co0.5)73.5Cu1Nb3Si13.5B9 wires were submitted to the thermal treatment of Joule-heating at current (ja = 26 - 45.5 A/mm2) and time t = 20 - 600 s . The effects of annealing on the magnetic properties has been investigated in order to improve the soft magnetic properties by the measurements...

Container terminal operation is one of the important things to support the activities in port. But there are many problems in container terminal operation, such as lack of information, traffic, truck, waiting time, berthing window, inaccessibility of operator, slow terminal performance, etc. All these...

The level of the Dividend Payout Ratio (DPR) can be influenced by several factors that determine dividend policy from 2014 to 2018. The purpose of this study is to examine the factors that can determine dividend policy. The variables tested in this study are company size as proxied by total assets, liquidity...

This study investigates the effects of incorporating interrupted fins on annulus side of double-tube heat exchanger to evaluate heat transfer, Nusselt number, pressure drop and heat transfer coefficient when using Fe3O4/water nanofluid. Heat exchange occurs as cold fluid flows through the annulus side,...

The water rescue operations have always faced numerous challenges, such as complex environments and long response times, while the emergence of intelligent UAV systems has brought new opportunities for water rescue. This article reviews the technologies and applications of intelligent UAV systems in...

This super-fast 5G capability is not only to complement the network and as a 4G update, but it can build a new approach where technical capabilities such as data speed, latency, connectivity, and so on will have a different impact than before such as from 3G to 4G. This study uses a literature review...

The current urban air quality is deteriorating. Especially in northern China, air quality has become a hot topic. How to improve indoor air quality raises our interests. Our research team hasdeveloped the device switches the anti-haze window automatically under WIFI control by using filtering screens,...

Feature selection is an important part during the process of qualitative and quantitative analysis of infrared spectrum. In order to solve the disadvantage of traditional methods, such as multi-parameters, slow convergence, poor accuracy, prone to premature, etc. a novel feature selection firefly algorithm...

Many kinds of actuator-based haptic robots have been developed and utilized in rehabilitation to improve and strengthen stroke patient's motor capability. Now a new concept of HMCR (human-Machine Cooperative Robot) is proposed in this article, which works with the joint efforts of human user and the...

Aimed at the limitations of single technology in network security defense, an Intrusion Protection System using correlation policy was proposed. This system consists of firewall, Intrusion Detection System and honeypot. The system extends the firewall redirection rules, sets up honeypot host monitors,...

The influence of temperature and CO2 partial pressure on tubing and casing steels widely used in Daqing Oilfield including J55, N80 and P110 steels in simulation water for deep natural gas wells with CO2 corrosion was studied, using autoclave, Scanning Electron Microscope (SEM), Energy Spectrum Analysis...

Sleep EEG signals analysis is a hotspot of research recently, this paper, by using nonlinear dynamics theory knowledge, JSD algorithm and multi-scale JSD algorithm is proposed for some individual conscious period and NREM sleep stage I analyzed the research of EEG signals, and the use of SPSS statistical...

In China, the conditions of rural areas are quite different. The dispersed household and terrain difference allow the centralized system of sewage treatment being a challeng. Thus, it is urgent to set up the new mode of sewage treatment by buiding the highly efficient dispersed in-situ treatment engineering,...

It was proposed to use electrokinetic phenomena for the cultivation of agricultural products, taking into account the multifactority of technology and the presence of relaxation phenomena. It is forecasted to use new approaches to reduce energy costs for the process of moistening the root-layer of soil...

The compressive creep behavior of AE42 and AE41-xCa alloys were investigated at temperatures in the range of 125~175 and compressive stresses in the range of 88~112MPa with a special apparatus. The results show that the creep resistance of alloys is improved with increasing of calcium concentration,...

Evaluation of corporate social responsibility is an important prerequisite for partner selection, harmonious relationship building and sustainable development. In order to make objective evaluation of corporate social responsibility, extension theory is used for the first time to evaluate corporate social...

Compaction index is the key to ensure quality, the compaction degree detection has a lot of kinds of methods, and some of these methods are time-consuming, some operations are very complex, some precision are not enough, so we urgently need a fast and nondestructive method to measure the compaction of...

Welding bath depth control system based on single neuron self-tuning PID is designed, and several learning algorithms for neuron weights are simulated, the simulation results show that this controller reacts quickly and has good stability. The experiment with various cross-section and seam-gap workpiece...

In this paper, the pedestrian head impact protection performance of SUV is evaluated base on European New Car Assessment Program (EuroNCAP) pedestrian protection five star criterion of 2013 edition. The front body of CAE model was built according to EuroNCAP , the model was correlated very well with...

Lactic acid bacteria are closely related to health, in recent years, experts and scholars at home and abroad have been continuously exploring the function of lactic acid bacteria. This article introduced antioxidant, decrease cholesterol, reduce blood press, immune function, produce bacteriocin, and...

In order to detect the products of car seat, propose a new car seat detection method in this paper. First, the car seat image is normalized to 256 pixels *256 pixels image. Then extract SIFT (scale invariant feature transform) feature points and match the points. According to the position of two matched...

Porous carbon is one alternatives material to store hydrogen through adsorption mode known as solid state hydrogen storage (SSHS). The capacity of this SSHS could be analyzed using volumetric technique, measuring the changing of pressure at known volume and temperature. The measurement equipment using...

As one of the largest carbon emissions sector in China, the transportation sector accounts for about 10% of the total carbon emissions in China. Urban rail transit plays a pivotal role in promoting the green development of the transportation sector, yet it also contributes to carbon emissions. Studying...

In order to study the flexural capacity of prestressed ultra-high performance concrete-normal concrete (UHPC-NC) composite beams, a four-point bending test of a 13 m full-scale prestressed UHPC-NC composite I-beam was carried out. The test recorded the main results of the test beam from the loading to...

Natural lakes have the potential to be developed as a tourism area, but it is very important to identify and measure the potential level of their tourism resources. This paper aims to identify and assess the potential resources of physical tourism assets based on four criteria, namely tourism infrastructure...

The plastic property of AZ31B sheet is poor at room temperature, so taking it as the object. Based on ABAQUS platform, FEM models are established. Moreover, ductile damage value is used as the indication of the crack, and based on the linear interpolation mathematical model, the minimum relative bending...

In order to do large scale line length heat-sealing for the sound insulation cotton and resistance to flame clad-ding layer materials of new aircraft, the system has been improved according to the original heat sealing ma-chine temperature control system. It uses thermocouple sensor of high response...

To study the sleeve structure under the axial pressure, taking the contact process of the inner core into account, the deformation process of point contact between the inner core and the flexible sleeve was studied theoretically. The second order differential equilibrium equations of a small deflection...

This paper firstly gives the scheme of the Multi-Energy Coupling System (MECS), which can be applied to college campuses. On the basis of the traditional Combined Cooling Heating and Power System (CCHP), we add solar photovoltaic and electric car into the MECS. Secondly, we establish the mathematical...

In order to get the relationship between China’s carbon emissions and transportation industry, we calculate the growth rate of carbon emissions and freight turnover based on the time series data from 1982 to 2014, showing them by the line chart. According to the change of the growth rate, carbon emissions...

This study presents a Sequential quadratic Response Surface Method(SRSM) using inherited Uniform Design(UD), to reduce the computational burden in optimization process and improve the computational efficiency of engineering optimization. The program comprises a low accuracy global quadratic response...

40 SD rats weighing 200 ± 10g were used, 12 of 40 rats were randomly selected as those in sham group, and the remaining 28 were used to establish the acetic acid-induced gastric ulcers to observe effects of smoking on the rat gastric ulcer and ulcer area. The acetic acid-induced gastric ulcer model in...

Feature extraction based on the multiscale transforms is usually accomplished in the high frequency subbands. The features which are captured from the high frequency subbands mainly contain the edge changing information of images; meanwhile the structural information of images is mainly existed in the...

With respect to the multi-state and multi-objective optimization problem of renewable energy grid-connection inverter system, this paper came up with a multi-mode predictive power control method to grid-connection inverter system, which established the discrete predictive model for island model and grid-connected...

The precision machining of shaft parts is of great significance in the fields of aerospace, automobile manufacturing and so on. For important high precision shaft parts processing, especially in the beginning of mass production, it is easy to produce single piece of waste. Aiming at the error compensation...

This study was conducted to discuss the index and method of urban land ecosystem health assessment; and to evaluate the condition of land ecosystem health in Chengdu. The assessment index system of ‘vitality-organizational structure- resilience-ecosystem service function-life style’ was established;...

According to the heat sensitive of projectile-launched plex equipment made by the PE, the ballistic radial friction condition is analyzed. The numerical analysis model of the rotary sliding friction relative speed between the plex equipment and the projectile body is setup. Based on the numeric calculation...

The on-board equipment is an important part of CTCS-3 train control system. In order to verify whether the on-board equipment complies with CTCS-3 system requirements specification, it is necessary to carry out functional testing in laboratory, in which a lot of professional expertise is needed, especially...

This paper proposes an adaptive network-based fuzzy inference system (ANFIS) based forecasting method for short-term solar power forecasting. An accurate forecasting method for power generation of the photovoltaic (PV) system is urgent needed under the relevant issues associated with the high penetration...

Considering the tedious steps, the poor accuracy and over-subjectivity of human sleep quality judgment artificially, this paper presents an automatic detection algorithm of sleep quality based on Mahalanobis-Taguchi system method. Based on the modeling and analysis of the human brain dual channel EEG...

Electrolytic codeposition technique was adopted in the deposition of Ni-Co-Al2O3 coating on the stainless substrate, using nickel alloyed with iron as the binder phase with Al2O3 as dispersed particles. The results indicated that the deposit with Al2O3 nanoparticles was level and compact; the crystal-planes...

Research on the node selection problem in Deep Belief Network(DBN). A new node selection model based on similarity is proposed to select nodes in the pre-training process of DBN, which is an unsupervised process. Firstly, extracting the nodes feature from pre-training weight matrix, and then comparing...

Sliding Variable Control has been widely intruduced in industrial fields and achieved good results,because it takes strong robustness without parameters affected and anti-jamming features.The electronically controlled diesel engine is a typical multi-disturbance dynamic and nonlinear system of delay.In...

For oblique arch, curved beam, space oblique composite system of suspension bridge, whose force transmission path and spatial stress is complex, robustness characteristics is strong, and no engineering experience can be used for reference. In order to analyse wind resistant performance of the Tongtai...

A semi-analytical hydrodynamic analysis based on the linear potential theory is introduced to study the liquid sloshing in horizontal circular cylindrical T-shaped baffled container using the novel scaled boundary finite element method (SBFEM). Via variational principle formulation, a system of ordinary...

Waste pineapple leaf residues were used to make microbiological fermented feed. 60 pigs with the same age in days and the weight of about 40kg, and they were divided into 4 groups (A, B, C and D) at random. Group A served as the control group. The addition amount of pineapple leaf residues in the experimental...

Dynamic in-situ monitoring is one of the important measures to ensure the stability of high slope engineering. Combined with a practical project, and based on the analysis of data that have been collected about the deformation of slope surface and interior and the stress state of support structures,...

This paper takes cyclic economy as research background, adopting diatomite to enforce A2 /O process and to make treatment study, using A2 /O process testing equipment to simulate the running conditions of A2/O process in wastewater treatment plant, and adjusting the index parameters in A2/O testing equipment...

With the development of computer technology and the rapid prevalence of the Internet Power started to use computer to realize the unification and standardization. So IEC puts forward IEC 61970 specification series, which makes EMS normalize and interconnects different EMS.CIM has been defined by IEC61970...

A method using dispersive liquid-liquid micro-extraction (DLLME) and gas chromatography-mass spectrometry (GC-MS) was developed to analyze geosmin(GSM, trans-1,10-dimethyl-trans-9-decalol) and 2-methylisoborneol (2-MIB) in source water. The mass spectrometry was operated in selective ion monitoring (SIM)...

In The technology of surface alloying by electron beam had been developed as a new surface treatment in recent decades. Based on the introduction of the principle of electron beam, focuses on the research status of the surface alloying by electron beam, and a brief introduction of the Surface alloying...

The internal transcribed spacer ( ITS) region in rRNA gene of Auricularia polytricha was cloned and sequenced, and the sequences were compared with those of some common species of Auricularia. The results showed that 6 strains among tested strains, except Teda with different origins, had the same length...

Flexibility of an insect wing has an important effect on the aerodynamic characteristics. In this paper, deformations and aerodynamic characteristics of flexible flapping wings referred to a real cicada’s wing are investigated. Firstly, 3 flexible flapping wing models referred to a real cicada’s wing...

The experimental study on desorption for carbon dioxide is based on the phenomenon that pouring mints into coke can form coke fountain. In this study, the commonly used liquid monoethanolamine (MEA) was assumed as the absorbent for carbon dioxide, then the mint and its main compositions such as glucose,...

Hyperspectral image visualization is an important research aspect in hyperspectral image fusion. This paper compared four typically used hyperspectral image visualization methods: method based on bilateral filter, method based on Principal Component Analysis (PCA), method based on independent component...

To improve the accuracy of analog circuit fault diagnosis, on account of the problem that is difficult to obtain a high accuracy of the test results for a single model, based on combinatorial optimization theory, an analog circuit fault diagnosis model based on dynamic Bayesian network is proposed. Firstly,...

Based on the analysis of the hydrological conditions, navigable conditions and navigable accidents of Huangshi Bridge, this paper puts forward the safety navigable control measures of Huangshi Bridge .

This work reflects the perspective use of dry grain product of talgan, as a component of functional nutrition. There are two ways of producing this product. The new technology for obtaining talgan involves reducing the time of its preparation. A laboratory-research stand has been developed that allows...

The oil-paper transformer is widely used as the common insulating device in the electrical industry. The transformer with the reserved primary coil and the secondary coils was filled with the transformer oil by the vacuum pouring process. Its insulating property was tested by the partial discharging...

The paper covers the area of block-structured adaptive grid generation for finite difference, finite element and finite volume methods. It deals with a problem of development of information technologies and algorithms for generating such grids in complex geometries. Its key idea is to bring together...

β-Cyclodextrin (β-CD) aqueous solution was firstly used into the removal of nitride from light oil by molecular recognition. Pyridine was chosen as a model compound and used in the denitrification experiments. And the influence factors, concentration of β-CD, time, ratio of catalyst to oil and temperature...

SiCp/A390 (SiC particle reinforced Al matrix) composites before and after SiC particles surface modification were manufactured respectively by powder metallurgy, and the mass fraction of SiCp is 20%. The surface morphology of SiCp and the interface morphology of SiC/Al and SiC/Si of composites were characterized...

Fluid sloshing simulations and tests were performed in a nuclear reactor scheme, especially core meltdown, using the moving particle semi-implicit (MPS) method. The MPS method is a method for analyzing the interactions between incompressible particles. In this method, the fluid is represented by particles,...

To explore the differences in precipitation among different regions and the persistence of precipitation trends in the future over the lower reaches of Yangtze River Basin (LYRB), we used precipitation data from meteorological stations in the LYRB from 1980 to 2020. The Pettitt method, Mann-Kendall (M-K)...

Micro droplet dispensing has great potential in biopharmaceuticals, drug screening, printed electronics and other fields. Its distribution speed, size, and direction is the main factor affecting the quality of the distribution, but it is too difficult to monitor these parameters above when the droplet...

In the modern world it is increasingly referred to the concept of intelligent building. Intelligent building referred to above all energy-efficient building, using alternative energy sources, as well as equipped with modern energy efficient technologies that reduce the energy consumption of the building...

To address the low accuracy and low stability of a single algorithm for transformer fault diagnosis, this dissertation is based on multi feature fusion diagnosis algorithm by combing support vector machine (SVM) and D-S evidence theory, The way to construct the basic probability assignment(BPA) of evidence...

Mixture design is a very important step in production and application of concrete. Many mixture design methods have been proposed for high performance concrete (HPC). This paper presents a critical review on HPC mixture design methods in publications. The procedures, advantages and disadvantages of each...

Terminal-sensitive ammunition based on sensitive detection technology, as well as ammunition of blockade and control based on ad hoc network, homing technology etc. are both smart submunition with high attention in recent years. Based on the analysis of the technical background and development of the...

In the paper, the nonlinear seismic response of Shapai arch dam subjected to strong earthquake is analyzed by FEM time history analysis method. In the analysis, several comprehensive influencing factors, including infinite foundation radiation damping, damage of concrete, the contact nonlinearity of...

If some nodes of the aviation network are pinning controlled, all nodes are synchronized to the steady state and promote aviation network robustness. Collecting the data information of routes, China aviation network's statistical characteristic is calculated, and aviation network robustness metrics is...

This paper takes 12 circular economy listed companies commended by the National Development and Reform Commission of China in 2012 as the samples, using content analysis to evaluate the quality status of their environmental disclosure objectively. The study finds that in the environmental disclosures...

In this paper, using the method of stress function analysis of steel reinforced concrete transfer beam and upper shear wall mechanical characteristics and deformation law of interaction, its stress distribution field has been given; Nonlinear finite element calculation and combined with some engineering...

Diagnostics of the rotating machinery can identify potential failure at its early stage and reduce severe machine damage and costly machine downtime. Rub-impact is common faults in rotating machinery and results in impact and friction between rotor and stator. The vibration signals due to impact and...

GFRP bars are non corrosion materials, their tensile modulus relatively are lower compared with steel reinforcement. A total of six beam specimens (BG1~BG3 and BC1~BC3) were simulated to failure by concrete crushed under four-point bending. The main parameters studies were FRP reinforcement's types (GFRP...

To explore the factors affecting sludge settlement, cultivation of aerobic activated sludge in a 20L sequencing batch reactors (SBR), using sludge in the aeration pool of the sewage plant as seed sludge, keep in room temperature (20 ~22 ), artificial synthetic wastewater. By changing the SRT, DO, running...

The inverter is a crucial component and. Its design can be customized to generate single-phase, three-phase, or multiphase outputs, which enables easy adjustments of output voltage and frequency to meet the diverse needs of different loads. Despite the benefits of inverters, practical conditions can...

In this study, a new type of heterogeneous catalyst based on cement matrix composite was developed. Hydrated cement particles (HCP) were used as the carrier material to immobilize the ferric iron produced by Fe2+/H2O2 system. Iron load bearing by new catalyst was calculated to be about 130.5mg/g. The...

From the study of mixed solid-liquid flow characteristics of viscous liquid, solid-liquid model of two phase flow for oil chili sauce in the stirring apparatus is presented in this paper. The impacts of turbulent flow field for stirred parameters in the stirring apparatus are studied. Combining with...

Special aircraft cabin layout optimization design was treated as an NP-complete (nondeterministic Polynomial time complete) problem. The empirical design was incapable to meet the developing requirement of the display and control system in modern aircraft cabin. After analysis of three typical cabin...

Song-family folk residence at Xiangcheng County in Henan, China, applied composite bricklaying technology of the red stone and brick, having formed its special style. The building group has a considerable scale, and is well preserved. In the paper, we describe the characteristics and layout of them.We...

Draw the commonly refrigerants table for writing in the program selector working pair in tune content. Selection according to the evaporation temperature of low temperature refrigerant, based on traditional non-azeotropic refrigerant select automatic cascade principle, the preparation method of choice...

This paper first distinguishes the Multi-Energy Coupling System (MECS) from the Energy Internet and the Integrated Energy System, and defines technique features of the Multi-energy Coupling System. Then, on the basis of the CCHP technical proposal and the photovoltaic configuration, a MECS design scheme...

The basic idea of this paper is to simulate use of the environment of high temperature filter material and study chemical resistance of needle-punched nonwoven fabric made from polyphenylene sulfide (PPS). An orthogonal test was designed to investigate the interaction effect of various factors, namely...

The article considers the problem of providing the necessary geometric parameters of the workspace of a flat robot with 3 degrees of freedom. The influence of the geometric parameters of the robot mechanism configuration (drive mechanisms rod lengths and working platform parameters) as well as the working...

By combining with surveying examples of ancient architecture, according to different architecture properties, the importance of ancient architecture surveying is illustrated. Besides, methods and practice of ancient architecture surveying are studied, and current situations and problems of ancient architecture...