Advances in Engineering Research

With the rapid advance of urbanization process, particle matters from the atmosphere has gradually become the primary pollutant of the air in cities. This paper selected the university campus of Shenyang-the north city of which the pollution is serious as the research target. Through investigation and...

Surface structure and electronic properties of (001) surfaces of GPBII and Sphase were studied by using first-principles calculations. The calculations are performed within the density functional framework using the projector augmented plane wave (PAW) method. For different terminations of GPBII and...

Coiled tubing with higher strength and larger diameter is widely used in oil and gas engineering. Local damage generated during its working operation will decrease the fatigue life and strength, but replacement will introduce with extra cost. In order to repair the damaged part with lower cost or obtain...

Through the analysis on the Dahei Mountains research area of eco-conserving division in Changchun, this paper puts forward the exploration of selection mode of new urbanization path of villages and towns in conserving area, which that is are eco-urbanization mode, local urbanization and new urbanization...

Polyethylene glycol (PEG) is used in a variety of applications, from medicine and pharmaceutics to green wood stabilization to skin creams and toothpaste. PEG is often used as coating or supplement for fibres created from other materials or spun as composite fibre in combination with other materials,...

For the stern-shaft mechanical sealing device, spring pieces and sealing rings are the main study objects of mechanical behavior and characterization. Consequently, the in-situ compression tests for the spring pieces were performed, where special test equipments were applied to ensure the measurement...

Pore structures and aluminum foam densities are strongly influenced by the particle size of TiH2 powders. In this paper, TG curves of the the original powders and the 4 kinds of powders which were separaed by the original powders were researched. The foaming process and pore structures using selected...

In order to ensure the security and stability operation of microgrid, this paper construct simulation models of renewable energy generation grid, propose the control strategy of the grid-connected and microgrid operation, and analyze these control strategy based on Power Systems Computer Aided Design....

Structural features of enzymatic hydrolysis lignin from the corn stalks and furfural residue was compared with lignin extracted from paper-making black liquid (PBL). Lignin was characterized by FT-IR, GPC, 13C- and 1H- NMR analysis. Enzymatic hydrolysis lignin from the corn stalks (CS) had a 12.2% higher...

The forecast accuracy of the wind power directly affects the operating cost of the network system, which is directly related to the supply and demand balance grid. Therefore, the forecast accuracy of wind power is very important. Considering the prediction accuracy not high, we propose an improved predictive...

We induce enablers of knowledge creation capability from five different aspects through analyzing process of knowledge creation. After that, by applying the fuzzy set theory and fuzzy clustering approach to analyze these enablers, a method based on fuzzy clustering is proposed. Using this method, the...

In order to solve inaccurate picking caused by the nonlinear input and output with the traditional picking measuring robot system, this article will put forward a new robot picking system based on FPGA and neural network. Comparing with the traditional robot system, the new one can enhance the linear...

With the increasing severity of environmental pollution and fossil resource depletion, electric vehicles draw widespread concern because of their use of clean energy and zero emission. The large-scale popularization of electric vehicles will become an inevitable trend of future development; the two-way...

In the article, the options of mines aeration by means of ejector fan installation are examined, as well as the principle of this installation functioning and its potential are shown. Basing on the investigations conducted and the functioning results received, the possibility of application of the ejector...

Within the framework of the effective-field theory with correlations, the phase transition behaviors of the spontaneous polarization in a ferroelectric thin film with symmetrical structure have been studied in detail by the transverse field Ising model. A general expression for the phase diagram of the...

In order to study the effect of viscous energy dissipation brace to the special Stress Performance of the concrete frame joint, the paper analyzes the concrete frame with installed and not installed damper under the action of earthquake by adopting Sap2000.The internal forces in joint area and seismic...

In order to find out the serious and long plagued leakage problems related to the seepage cut-off wall of Nanmenxia Reservoir, used the introduced British Groundvue series of Ground Penetrating Radar equipment, field test and verify work were implied, leakage location and path were determined. The results...

By optical microscopy, SEM, XRD, EDS and EIS, study the corrosion behavior of copper in Qingyuan rural atmospheric environment. The results showed that: after exposure in Qingyuan rural atmosphere, copper has corrosion. With time, the corrosion products increased, and gradually cover the surface of the...

The electric information acquisition system is a powerful support for smart grid by collecting information from users, and the acquisition success rate is required more than 99%. However, the stable operation of the system depends on the equipment performance, technology selection, mechanism, maintenance...

This paper derived an approximate deformation analytical solution of a circular hole which is parallel to the isotropic plane of the layered rock mass. The data comparisons of approximate solutions and numerical solutions are conducted in different radii and stress conditions through the FLAC3D software....

Use the LMS data acquisition terminal and the PCB acceleration sensor, get the loading spectrum of two typical proving grounds by the same truck, and then make a contrast analysis of the distributing character by the rain-flow counting technique. At the same time extrapolate the two spectrums into the...

In the test and evaluation of operation, the test benefits may be greatly reduced because no useful conclusions may be obtained from test data due to missing or incompleteness of test information records. Based on the characteristics of gun firing and by separating firing errors, this paper proposes...

This paper introduces the content and characteristics of IEC61850 standard, and the basic knowledge about the model of layered structure and the configuration files. In addition, the application skills of IEC61850 standard in a project are presented via the example of the SCD documenting and configuration....

The pitch control strategy of the wind generator set in the paper applies power feedback closed loop control to implement that variable-speed constant-frequency wind turbine regulates constant power removal by adjusting pitch angle under the condition above the rated speed. The present output power of...

The problems of congestion and queuing in Makassar city generally occur at the intersection. One of the intersections in Makassar City that experienced the problem is St. Dr. Ratulangi – St. Lanto Dg. Pasewang – St. Kasuawri. This study was conducted to analyze the junction of the berignal by the method...

At present, the main research methods are Matlab/simulink and Ansoft maxwell. When modeling and simulating with Matlab/simulink software, there will be shortcomings in the simulation as the special structure of the model and material parameters cannot be set. The modeling and simulating with Ansoft maxwell...

Passive design has widely been identified as one of the most economical and effective strategies for reducing energy demand. This research is based on the physical surveillance, and has adopted physical environment fieldwork test and data analysis methods to evaluate the effectiveness of passive space...

This paper attempts to establish a post evaluation system framework for the implementation effect of bridge preventive maintenance based on the gray multi-level fuzzy comprehensive evaluation. It proposes to use analytic hierarchy process to determine the index weight and introduces the gray fuzzy comprehensive...

In order to facilitate the rehabilitation of patients with hand dyskinesia, a soft mechanical glove with the master-slave motion controlling system is proposed in this paper. Since the relationship between the input collected from movement of master hand and the output- the parameters needed to control...

This paper deals with the analysis for the irreversible demagnetization characteristics of a NdFeB, ‘W-type’ permanent magnet in the line-start permanent magnet synchronous motors (LSPMSM). By using the finite element method, the influence of different permanent magnets status and the different start...

One of the problems that is very avoided when oil and gas drilling operations is the filtration loss. The usual and often used additive to overcome this problem is the Carboxymethil Cellulose (CMC) where the CMC is relatively expensive, so research needs to be done using alternative materials or natural...

The Chernobyl disaster, which knows no analogies in the world in the scope of radioactive emission and duration, radionuclide composition and physical and chemical discharge forms, led to the large-scale pollution of agricultural lands and products, including animal production. After the Chernobyl disaster...

Financing of economic growth and economic development at the subfederal level due to the limited financial resources is considered; the regularity of the formation of a new financial instrument - rational financing – is justified. The concept of rational financing has been formed from the scientific...

The evaluation method of impact hazard during the recovery of the working face is mature, but the evaluation indexes or factors considered by these methods are difficult to apply to the risk analysis of roadway excavation in the areas with faults and karst. Therefore, the fuzzy comprehensive evaluation...

As a natural passive cooling technology, nocturnal radiator can reject heat into the sky by electromagnetic infrared radiator exchange. In order to take full use of nocturnal radiator for cooling provision at night, this paper put forward two types of novel nocturnal cooling radiators in panel structure...

This paper presents the determination of bergenin content of Yuchuangling capsules by high performance capillary electrophoresis (HPCE) method. Elastic quartz capillary electrophoresis separation control at the temperature of 20°C without coating capillary (75μm× 44/52 cm), the sample height was 7.5cm,...

The traceability of agricultural products safety is becoming prominent, and consumers do not have a sufficient understanding of vegetable information. This paper summarizes that Vegetable information release system and we have made a milestone record of the growth cycle through the information summary...

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

Loader Boom Frame is a welding part welded by two long boom plates and cylindroid beam. As condition of loading changes frequently, the beam is the most seriously destructed. Up to now, the analysis of the failure for loader operating device is mainly aimed at the weld fatigue. This paper verified the...

Strategy operation is one of the most important aspects in program trading. In this paper, the program trading strategies of the high-frequency trading, algorithmic trading, and carry trading strategies were investigated. Through investigation and analysis, the principles, advantages and disadvantages...

The whole society is affected by the pandemic of coronavirus or COVID-19, even in Indonesia’s education sector. One of the government’s policies to constrict the spread of COVID-19 is by physical distancing. The education sector’s impact is which must be using an online learning platform, which is also...

The policy to prohibit cantrang fishing gear is intended to prevent excessive exploitation of fish resources, environmental degradation and conflicts between fisherman, but fisherman and government officers’ perceptions of the policy are not the same. The purpose of this study was to analyze the perceptions...

The increasing municipal solid waste can cause environmental pollution problems. The organic fraction is the largest component of municipal solid waste, reaching 75%, mostly around 61% from kitchen waste. One method to reduce the impact of pollution from municipal waste by processing it into Refused...

Enterprise digital transformation can benefit enterprises to enhance their competitive strength and is an important driving force for high-quality development. As a highly active region in terms of science and technology factors, digital transformation in Guangdong Province has become an important driving...

Development in the construction sector continues to increase. The most common building material nowadays is concrete. Although normal concrete is often is being used, at this time high strength concrete and lightweight concrete have also been widely used in construction. In the codes for concrete materials,...

The Sharyn Gol River Basin in the central region of Mongolia is one of the economically important areas for agriculture, animal husbandry and mining. Due to its favourable natural condition and advantageous geographical location, the Sharyn Gol River Basin is under increased pressure from human activities....

Surface water bodies are characterized by dynamics, complexity and seasonality, so it is important to accurately portray the dynamics of surface water body changes for regional water security, water resources utilization and the construction of happy rivers and lakes. Based on the long-series remote...

In remote ocean reefs, coral concrete made from local materials could be used as an alternative to traditional concrete. However, the application of coral concrete is limited by its low strength, high brittleness, and poor durability. To address this issue, researchers have developed alkali-activated...

The goal of this work is to provide solutions for needs of patients suffering from Amyotrophic Lateral Sclerosis (ALS), tetraplegic clinical conditions (e.g., the locked-in syndrome), paralysis or other progressive illnesses, disabled and/or elderly with acute disabilities in moving their whole bodies...

The basic mechanical parameters of rock are obtained and the creep curves under different stress loads are obtained to reveal the creep law of layered soft rock under different stress loads. According to the creep test results, the linear Burgers creep model is used to fit the test data. The fitting...

It is the significance for the region to realize green sustainable development, especially for Mongolia which is an ecologically fragile developing country. In this paper, energy consumption and environmental undesirable outputs were taken as ecological environmental indicators into the input and output...

A socket is used as a handling tool after matching with a ratchet wrench. Its main function is to handle all kinds of screws and nuts and other fastening parts, but sockets are often lost after falling down on the ground or rolling over before and after their use. This research employs TRIZ to improve...

This paper presents a methodology to study the interdriver heterogeneity by using vehicle trajectory data. Different from the existing studies subjectively dividing the drivers into two or three types, this paper explores a K-means clustering methodology to classify the drivers based on real traffic...

The Alkali/Surfactant/Polymer formulation is selected based on surfactant solubility tests, phase behavior experiments, IFT measurements, polymer viscosity measurements and alkali/surfactant/polymer compatibility tests. Ultralow IFT (

The rational size distribution of the granular materials is proved in this paper on the basis of the theoretical studies of their optimal structure based on the particle-particle packing probability theory, the laboratory studies in the dependencies of bulk density and static modulus of elasticity of...

The direct strength calculation of a 70000 t bulk carrier was carried out based on the Guidelines for Direct Analysis of Bulk Carriers. Through building finite element model of 70000 DWT Bulk Carrier's hold section, the design Loads, boundary conditions and load cases were studied. According to the direct...

By setting the training ship of Dalian Maritime University, “Yu-Kun” as the research object, numerical simulation was conducted for 10°/10° zig-zag maneuvering test based on the theory and calculation method of computational fluid mechanics in this paper. According to the contrastive analysis on the...

The pile-anchor supporting system is wildly used in the excavation supported system, and waist beams play an important role in the supported system. If the waist beam is destroyed, it may lead to the collapse of the retaining structure. But now, the designers tend to ignore the specifically designed...

Based on the freeze-thawing cycle characteristic of road concrete in cold climatic condition. The objective of this paper was to estimate the practicality of using fly ash discharged from a coal fuel electric plant in Inner Mongolia in concrete pavements. The abrasion resistance of road concrete containing...

Chloride ion permeation is the most important factor for durability of concrete in marine environment. Therefore, it is the basic on durability design of concrete structures to choose reliable and accurate testing method for chloride ion permeability in concrete. In this paper, according to transport...

Corn Stalk (CS) modified by urea and microwave was investigated as an adsorbent for Pb( ) removal from aqueous solution. The preparing parameters on mass percent gain of Modified Corn Stalk (MCS) are analyzed using response surface methodology (RSM).The effects of PH and MCS dose on the Pb ( ) removal...

Water holding characteristics, including, water holding capacity, water holding rate and absorption rate, together with the litter stock from five public welfare forests with different tree composition and identity were measured. The purpose was to understand water-conserving functions of the three plantations....

The bench test of diesel engine is conducted fueled with biodiesel, diesel and blending fuel, the changes of cylinder pressure with crank angle is also measured, combined with the measurement results of carbonyl emissions, the theoretical relationship between combustion process and carbonyl formation...

The encapsulation of Fe3O4 particles in a graphene shell to form a core-shell structure is a promising way to improve the electrochemical performance of lithium ion batteries (LIBs). The continuous graphene shell may enhance the electrical conductivity of the electrodes, facilitating current collection...

Al-Ti-C alloy is a kind of fine refinement agent. However, the wetting of Al/C interface and TiC synthesis are the key technical problems to be solved in the preparation of Al-Ti-C grain refinement. In this paper, the acoustic cavitation effect was used to improve the wettability of Al-Ti/C interface,...

Generally dye-sensitized solar cell (DSSC) consists of a transparent electrode, TiO2, dye, electrolysis solution and Pt as a counter electrode.In our study, we substituted carbon nanotubes (CNT) for counter electrodes to improve the performance of DSSC owing to their advantages as high catalytic activity,...

A series of branched styryl derivatives based on 1, 3, 5-triazine have been studied by time-resolved fluorescence anisotropy method to study the intramolecules interferaction between branches. The obtained results further confirmed the TPA enhancement mechanism, the anisotropy of trimer shows faster...

Based on constraint phononic crystal cutoff frequency characteristics, the paper studied effects on the phonon crystal band structure of the two-dimensional phononic crystal substrate density and elastic modulus under constraints. The spring quality equivalent model is proposed for the theoretical interpretation,...

It was studied experimentally that The variation of the open circuit voltage and temperature of a single solar film during the heating process under different illumination On this basis, by measuring the voltage generated by a single solar film under a voltage regulator, the number of multi-films which...

In traction power supply systems (TPSS) extreme modes occur in emergency situations with extreme electromagnetic fields (EMF). Short circuit (SC) is one of the extreme modes that lead to considerable current flows in catenary wires with significant growth of magnetic field strengths. SC modes duration...

In this paper, VRML2.0 as the development tool to mechanical design of the main parts as the object. First select the typical components of the sliding bearing as the entrance to various forms of three-dimensional model of the structure to user. So that the user has a comprehensive grasp of the structure...

The external clock synchronization method is difficult to implement, susceptible to interference and insecure for the marine fault recording device, so a synchronous method based on Lagrange once interpolation algorithm is proposed. MATLAB simulation and prototype test show that the synchronization accuracy...

The linear regularity of the strain distribution about new composite T-shaped concrete-filled steel tubular columns on the multiple sections was analyzed by ABAQUS. The plane-section assumption of new composite T-shaped concrete-filled steel tubular columns was studied under the axial loading and lateral...

Delicacy management of railway power supply and the density of trains increased made monitoring points increased and running changes intensify, a large number of fluctuation data need to be synchronized among different databases, but there are two problems need to be solved: (1) Existing various systems...

The addition reaction was carried out under the acidic conditions using dicyandiamide and 3,3'-dimethyl-4,4'-diaminodicyclohexylmethane (DMDC) as raw materials to prepare 3,3'-dimethyl P-guanidino) dicyclohexylmethane. The effects of reaction temperature, reaction time and molar ratio of materials on...

In this paper, the search delay model of P2P networks is proposed. By analyzing the search process of structured P2P network and using Markov chain, the relationship between the mean node session time and the search delay of the P2P network is obtained. This model shows the inherent law between P2P Churn...

In precast concrete structures, connections play an important role in ensuring the safety of the structure. Current design practice in structural analysis assumes the connection as pinned or rigid. However, this cannot be relied upon for safety against collapse because during service the actual connection...

Safety has become people’s primary requirement for smart homes. The home security system has become an important part of the smart home. We design a smart home security system based on MSP430 microcomputer. It combines smoke detection module, fire detection module, man-made illegal intrusion detection...

Steel material has resistance to rust and strong magnetic properties, as well as resistance to loads. Aluminum is of high strength and corrosion resistance. Most of the technical equipment is under rotary dynamic load pressure. The component that receives the most dynamic load is the shaft. The shaft...

Several studies state that the development of Micro, Small, and Medium Enterprises (MSMEs) in rural areas can reduce poverty. The existence of MSME development can provide access to the poor in rural areas so that they can be involved in productive business activities and promote entrepreneurship, especially...

The purpose of this paper is to explore how traditional construction techniques and modern architectural design can coexist. Taking Yunnan as an example, through an in-depth study of traditional construction techniques, its advantages in terms of aesthetics, functionality and sustainability are analyzed....

Arduino Uno is a minimum system board that use atmega 328p as a microcontroller IC (Integrated Circuit). Arduino Uno has 20 output pins. The running out of the pins owned by the Arduino Uno makes it cannot control many LCD, such as 3 LCDs that require 21 pins. With the lack of the Arduino Uno, this study...

Currently, the construction of pumped storage power stations is in a peak period, and due to layout requirements at the station’s location, it is sometimes challenging to find ideal geological conditions for the underground powerhouse location. This necessitates excavating underground caverns in areas...

Dengue fever in Indonesia requires immediate solutions because it poses a threat to life. The NS2A protein within the dengue virus is one of the major causes. Molecular docking is a rapid method for discovering antivirals for dengue fever using computational techniques. The results of this method are...

Based on the disadvantages of the odine adsorber currently used, compare the performance differences between traditional granular activated carbon and new activated carbon fibers in adsorbing radioactive gaseous iodine. And explore the modification methods of new impregnated activated carbon fiber materials...

In order to study the effect of degradation of isolation bearing performance on the seismic response of in-service bridges, a continuous girder bridge is combined to analyse the effect of degradation of isolation bearing performance on the horizontal displacement of the bearing, the vertical reaction...

Real-time hydro-logical data such as water level and flow of the main canal of the Middle Route of the South-to-North Water Diversion Project are the basis for decision-making of water conveyance scheduling. Due to the influences of external disturbance, measurement system error and other factors, the...

The characteristics of lightweight concrete are distinct from those of the many other types of concrete. On the other hand, there has been relatively little investigation into the performance of such concrete when it is wrapped in fiber-reinforced polymer. This study investigates effect of fiber reinforced...

This paper introduces the classical theory of MPA (micro-perforated panel absorb-er). Its sound absorption coefficient primarily related to these structure parameters. Based on the theory of MPA which is proposed by M, sound absorption performances are researched by using MATLAB. By this method, the...

Solar photovoltaic power generation is an important part of the system, and the work efficiency and system capacity is closely related to improving the energy conversion efficiency of the solar cell can increase the utilization of solar energy. Because of the characteristics of solar cells have a number...

Automotive glass is one of the most important parts of automobile, the performance of automobile glass is di-rectly related to an important indicator of the safety of passengers and fuel economy. But in the face of all kinds of natural disasters and in the traffic accident, the doors and windows can't...

A pot experiment was conducted to study the effects of exogenous abscisic acid (ABA) on photosynthetic characteristics of Chinese cabbage under aluminum (Al) stress. Five treatments were used in the experiment: leaves were sprayed with 0 (CK), 1, 5, 10 and 20 mol-L-1 concentrations of abscisic acid solution....

Industry is the main industry of water pollution.we should reduce the total amount of industrial water pollution to enhance the overall quality of the environment . Taking Jiangsu as an example, this paper analyzes the factors that affect the industrial water pollution by using the grey correlation analysis...

This paper introduced the theoretical design of automotive muffler. The muffler three-dimensional model was established using the computer, and convert the format of the three-dimensional model into STL, then by using the method of rapid prototyping, print out the muffler entities. By using the related...

The IPMCs with various thicknesses were manufactured by a hot-pressed method and their actuations in terms of tip force and displacement when being reused with different treatments were investigated. Three selected treatments are no treatment, treatment in deionized water or 2M NaCl solution. To achieve...

With the increase of mining depth, heat harm is becoming more and more serious, paper established series of fan operating parameters model, designed energy-saving system of use natural ventilation to solve mine thermal harm, combined ventilation remote monitoring and natural ventilation, and innovated...

An algorithm of target tracking based on information filteringBook and particle filter is proposed in this paper. Accurate foreground region through the fusion of neighbour-information is segmented and features of foreground are extract to build an initial template for particle filter. The experimental...

Seal type hydraulic dumper is frequently used in helicopter rotor system to prevent ground resonance and air resonance. In this paper, we modeled the seal type hydraulic dumper with the Hydraulic Component Design database in AMESim and analyzed the impact of driving frequency and gas content of the hydraulic...

Phenolic acids concentrations, total phenolic and flavonoid contents and antioxidant activities in extracts from Naseberry, Jackfruit,Longan, Litchi, Carambola and Loquat leaves were determined. The total phenolic contents varied from 4.43% in Litchi to 11.97% in Naseberrys. The Four major phenolics,...

The second-order elastic constants and generalized-stacking-fault energy surfaces for semiconductors GaAs have been predicted by using the first-principles calculations. The calculations employ the density functional theory within local-density-approximation method. The lattice constants of GaAs is 5.626Å,...