Advances in Engineering Research

In electric toy tests, the creepage distance and clearance tests are related to techniques of various fields and there are no specific measurement paths and rules in relative standards, which results in the big difference in test results. In this paper, the technical requirements of the creepage distance...

According to the investigation of 25 stations in Hanjiang River Basin in August 2015 and January 2016, the aquatic health index of the region was evaluated by using the evaluation method. The diversity evaluation grade was light or non-polluting in August 2015 while diversity rating for the heavy pollution...

A belt corridor of Pingdingshan tianan coal company was built in the 1980 s, after 30 years of use, lower chord and lower chord node of steel truss structure rust serious, bearing capacity of bar and node plate has not meet the design requirements, that being serious security hidden danger to producing...

In view of the faults of the traditional single Door-Controller,a single Door-Controller Based on intelligent Door-entry system through CAN bus is designed which combining the CAN bus with infrared coded remote control technology.The controller consists of STC89C55 single chip,CAN controller,data memorizer,the...

Trimaran is of three hull, three slender hull share a main deck and the upper structure, which has many superior qualities, compared with the single ship, aroused people's great interest. In the design of the main concern is to reduce the resistance of trimaran, therefore, to study the effect of convection...

To solve the problem of Back Propagation (BP) neural network easy to get in local least value and the initial weight is chosen randomly, Principal Component Analysis (PCA) and Genetic Algorithms (GA) were introduced to the BP Neural Network to achieve their complementary advantages. Based on the BP neural...

Based on finite element analysis software ANSYS, using shell elements and space beam elements, finite element model of the vertical multilayer pipe support system of high-rise building is created. The dynamic characteristics and seismic response of piping system are analyzed under earthquake load using...

CFD modeling method was applied on simulation analysis for ice can structure impacting on flow field of ice tank in this article. The cross section of existing ice cans was rectangular structure. Velocity between frontal side and lee side of ice cans was close to zero, fluid resistance was large. Contrast...

With awareness of environmental protection is increasing, the government regulations on noise limits have become increasingly stringent, people's requirement for the comfort of general machinery is increasing. The NVH performance of general machinery will be the main trend of the future general machinery...

After surveying and analyzing the educational condition of the High- School Physics, specifically about the stars’ movements, we treated the High-School Physics material as basis, researched enormous information from the internet and simulated three stars’ movements depending on numerical method, and...

Three-phase brushless DC motor is adopted as the drive motor for electric turbocharger in the paper. The selection of DC motor without position sensor is adopted three-phase star connected two-two excellent performance conduction mode as electric machine work to simplify the circuit structure design,...

PV as an important form of new energy, which has good prospects has been developed rapidly in recent years. However, distributed PV grid causes such as power quality, stability and reliability, also distribution Maintenance island effect will work to bring a lot of PV systems security risks. This mainly...

In order to ensure food security, a design scheme about temperature and humidity data logger for small refrigerator that could monitor temperature and humidity of the environment in real time was proposed. The recorder uses 32-bit RX631designed by Company RENESAS as the controller chip and the paper...

With the application of the pulsed-neutron formation-elements logging instrument, the interpretation method of formation-elements logging has been proposed. We obtained the standard spectrum library for formation elements, got the element yield, dry weight(percent content of the quality without crystalline...

In this letter, a dual-mode dual-band microstrip bandpass filter (BPF) based on stepped impedance resonator (SIR) for wireless communication applications is introduced. By choosing a proper impedance ratio, a BPF operating at 2.4/5.2 GHz is designed and analyzed. By adjusting the perturbation size, two...

On high performance computers, each compute node's demand for memory may be different. Building a distributed file system in idle memory can improve the memory utilization of the whole system. When memory takes place of disk, the Socket-based communication becomes the main bottleneck. As most of current...

The electricity of the micro grid mainly comes from the wind power, but generating power by wind is not steady, it brings some negative influences to the whole electricity system. So, it is necessary to improve the forecasting accuracy of the generating capacity by wind. It can make the whole electric...

Information technology has become an important part of port management. Proper management of the port system is essential for more effective and efficient sea transport processes. This situation explains why the movement and container checking systems at the ports are given big priorities. Explain that...

In recent years, convolutional neural networks (CNNs) have achieved groundbreaking progress in the field of computer vision. However, the computational complexity and storage requirements of CNN models pose significant challenges for deployment on embedded systems and edge devices, with traditional CNN...

Although the vacuum preloading has been widely used in the engineering, the influence area of horizontal de-formation is controversial. In order to clarify the influence range and show the deformation of nearby building during loading and unloading of vacuum pressure, a series of finite element analyses...

Integration of Internet of Things (IoT) with Cloud Computing, termed as Cloud of Things (CoT). In typical CoT infrastructure, the data collected from wireless sensor networks and IoTs will be transmitted through smart gateway (SG) to cloud. The bandwidth between IoT access point and SG becomes a bottleneck...

The predict communication situation in 2015 is obtained based on the normal distribution of the market share percentage of each kind of information transmission mode. The prediction result is compared with the reality in 2015 then. The comparison result shows that our model have great reliability since...

A kind of nonwoven containing ferulic acid is prepared by electrospinning method. It was observed that the diameter of the fiber was about 200 nm by SEM. The antibacterial activities against Escherichia coli and S. aureus were also investigated. The result showed the nonwoven prepared was effective against...

The theory calculation of power supply for distribution network often based on grid structure in planning stage. The period of reliability evaluation indexes are mostly one year. The impact of different load levels and periods are rarely considered. Power supply reliability analysis and calculate online...

In this paper, aiming at the problem of fermentation northern winter weather is not conducive to the biogas system, we have designed a set of Solar energy and industrial waste heat boiler flue gas complex warming systems to ensure that biogas systems in the winter can also be normal fermentation. This...

Firstly we build a set of models to describe the temperature of the bathtub water in time. In this section, we analyze the variation process of water temperature under the condition of Natural cooling and injecting hot water respectively through a macro perspective. The Newton’s cooling law and the energy...

Well spacing is a critical factor to figure out when planning to drill new wells in low permeability reservoirs. In this paper, horizontal multistage fractured well spacing is optimized for several scenarios in H reservoir using PEBI grips. To find the optimum well spacing, sensitivity analyses are carried...

Iron–doped lanthanum stannate (Fe–La2Sn2O7, simplified as Fe–La) was prepared firstly and used as a synergistic agent of the intumescent flame retardant (IFR, the mixture of ammonium polyphosphate (APP) and pentaerythritol (PER) with mass ratio of 2:1) for polyphosphate (PP). The limiting oxygen...

Sunshine one of the most severe factors makes great effects on the mass concrete construction, especially on larger reinforced concert silo. In order to calculate the temperature distribution of the reinforced concrete silo subjected to the solar radiation, an easy-to-use tool is required for a transient...

With the development of national economy, China’s needs for electricity are growing and the requirements on quality is also becoming stricter on the power system security, stability and economic operation. Diagnosis of the state of equipment is mainly based on statistical analysis of large amounts of...

Fungal phytopathogens are responsible for significant losses in agriculture worldwide. Diagnosis of seed infestation by fungal strains causing plant diseases or producing toxins is important for sustainable agriculture. Since plants are always colonized by fungal strains there is a demand in approaches...

The best is to read these instructions and follow the outline of this text. Recently, convolutional deep neural network (ConvNet) has been widely used in the field of image classification. In this work, we propose a new feedback free convolution network for image classification. The proposed network...

An algorithm based on the primary star, called the two-step matching algorithm, is proposed. The recognition characteristic of this algorithm consists of angular distances between the primary star and its neighboring stars, and the directions of neighbor stars. This algorithm uses star map information...

The urgency of demanding for large data in power industry will greatly exceed that of in other basic energy industries in the future. Through analyzing the power equipment condition monitoring data, we can assess more accurately the operating condition of power equipment, predict the life span of the...

The intrinsic kinetics and mechanism of direct dehydrogenation of isobutane were studied over K-Cu-Cr/Al2O3 catalyst. The experiments had been carried out in a fixed-bed reactor with eliminating the influence of both internal and external diffusion at 470-510 oC and space velocity of 2500-4000 h-1 under...

This paper mainly studies the effected of fuel injection time on combustion and emissions of the four kinds of different proportions of N-butanol alcohol and diesel fuel mixed without changing the injection duration and mass under the software of FIRE. It provides the theory basis for the further development...

Paper deals with investigation of induction electrical machines winding based on matrix description. The possibility to use such method for creation of new winding structures and properties prediction at the designing stage are discussed. The software implementing the approach suggested is also presented....

Highly efficient Li4SiO4-based sorbents for CO2 capture at high temperature, were developed using waste rice husk ash (RHA). Two different RHAS resulted from different calcination temperature as raw materials for preparing the Li4SiO4-based sorbents. These raw ashes and their resulting Li4SiO4-based...

Stretchable interconnects are essential structures in stretchable electronics. Typically, these structures are formed by metal conductors of different shapes on top of or encapsulated within a rubber material. Interfacial delamination during elongation is one of the major failures affecting the elasticity...

The researchers think more about the control factors except themselves, and ignore their own psychological factors in the aspect of water-saving. From the perspective of psychology, the paper discusses the Chinese college students about the group psychological factors, the popular psychological factors,...

The corrosion behavior of rebar HPB235 in 1.5 wt.% NaCl solution was studied, and the mechanical properties before and after corrosion were tested. The results showed that, with the increase of corrosion time from 240h to 720h, the corrosion rate of rebar HPB235 increases and the corrosion becomes heavier....

According to Extension project construction drawing design of Chang pugang Bridge and some related files, we built the mathematical model for calculation. Also, the internal force, stress, and deformation result of the control section has been checked by referring to the current specification, and we...

In the early stages of China’s mining industry, due to underdeveloped legal regulations, small mining companies often neglected backfilling and support work after excavation, leading to the formation of numerous goafs (mined-out areas). These goafs are prone to instability under the influence of external...

The result of the English Proficiency Test (TOEP) of UMS students in the first and second periods of 2021 shows an increase in student failures, from 33.96% to 50.82%. The increase of TOEP failures means the possibility of mistakes and deficiencies in the teaching and learning process, in point of fact...

This study aims to determine the level of relevance of graduates in getting a decent job. This type of research is descriptive quantitative. The variables studied included the level of closeness of the field of study with work, the same level of education with job needs, and alumni income. The number...

The soil water characteristic curve is a important parameter that expresses the unsaturated characteristic of water holding and moisture migration. With filter paper method, the matric suctions of soil samples in six water contents and three dry densities are measured, and the soil water characteristic...

Specific to the usual methods for insulation monitoring—dc superposition method, double frequency principle and zero sequence current amplitude comparison method, the work principle and applications of these methods were compared and analyzed, and respective characteristics were concluded. On this basis,...

Two new double-sided and multi-layered network porous compound named 1 [Ni2(BTC)2(DABCO)(DEA)2] have been synthesized by solvent thermal synthesis method. Which, for the first time, exhibit an unusual double-sided and multi-layered MOF. The double-sided MOF structure extended to regular hexagon morphology...

The kinetics of ring-opening polymerization of L-lactide in a tubular static mixing reactor was investigated for the first time. The polymerization of L-lactide was initiated by stannous octoate/triphenylphosphine catalyst system at a temperature of 170 ºC - 190 ºC and molar ratio of monomer to initiator...

The applications of neutral network based temperature prediction for microwave heating system has been comprehensively investigated. Temperature prediction is essential due to the characteristics of high power microwave heating system, a.k.a. big inertia and pure time-delay. This work proposes a BP neutral...

At the stage, the airport prestressed concrete pavement of our country is still in the research stage. In this paper, an experimental analysis on mechanical effects about the void prestressed concrete pavement has been done. Deflection has been compared under plain concrete pavement and prestressed concrete...

In this paper, a 220kV substation occurred in a 220kV oil immersed inverted current transformer failure were analyzed. Based on the principle and characteristics of the current transformer, this paper analyzes and judges the cause of the accident using the structure, characteristic analysis, accident...

In view of the serious water logging, water scarcity and water environment deterioration, the paper analyzed the causes of water logging according to the specific conditions of Kunming. The problems of water logging and water scarcity were considered from the perspective of rainwater utilization. Based...

This pilot study evaluated the APACHE Score and QT Interval Dispersion for the Prognosis of Critical Cardiovascular Diseases.

Principal Component Analysis (PCA) is a main approach based on the second order statistics. It can remove the correlation between the signal components. PCA has been widely used in blind source separation and received attention because of its potential application in signal processing. PCA’s principle...

Direct Simulation Monte Carlo (DSMC) is a widely used statistical numerical simulation method based on molecular motion. But in terms of the DSMC method. When we are simulating the gas flow at low speed, he molecular thermal motion speed is bigger than the macroscopic movement speed. If we want to get...

Doubly-fed induction generator is a multivariable, strong-coupling, nonlinear controlled object. The paper makes a comparative study on two decoupling control methods based on vector control and Internal Model Control theory for decoupling voltages of DFIG. Theoretical analysis and simulation results...

The damage test of concrete with size of 100 mm * 100 mm * 300 mm under loading history and sulfate attack has been carried out to investigate concrete properties. Mass and ultrasonic velocity of 15 prismatic concrete which are immersed in 1% sodium-sulfate solution under different loading history are...

Our first-principles calculations based on density functional theory predicted a new path for the formation of sp-ferromagnetic states: anion interstitials. The fluorine interstitials in MgO were found to be spin polarized and are more stable in the ferromagnetic state. This observation is attributed...

The research of the reliability will be further into the substation level with the combination of the substation main wring and power system. In this paper, the power system reliability considering the effect of the substation main wiring reliability evaluates by two different methods which are the analytical...

For quickly, realistically and effectively building up the computing environment in the emulational network and electromagnetic circumstance, how to utilize the underlying virtualization technology to realize dynamic building has become a hot spot and difficulty for researching. Prompt a dynamic building...

license plate location is one of the key steps for license plate recognition. With license plate recognition technology, police can better manage vehicle and this technique also give convenience to application such as parking fee charge. In this paper, we propose a novel method to locate license plate...

Ni-nanoTiN composite coatings were electrode posited on 45 steel substrate by using the ultrasonic–electrode position for nickel sulfamate bath. The effects of direct current, positive pulse current, reverse (positive and negative) pulse on surface morphology, binding force, micro hardness, friction...

The Overtemperature OTDeltaT design is based on radial core peaking factors being no worse than design. It is not intended to protect for adverse radial power (quadrant tilt such as might be caused by misaligned control rods). The OTDeltaT RT protects the thermal design limit for departure from nucleate...

With the development of global climate change and infrastructure construction, slope geological hazards have become increasingly prominent. Especially for all infrastructure projects with multiple points and line lengths, slope types are complex and diverse, hazard distribution ranges are comprehensive,...

The paper,taking a Honda SUV vehicle tires as an example,designed a outer rotor 18/12 pole doubly salient permanent magnet wheel motor and briefly introduced the design principles for the motor size and the material selection for the main part of the motor . This paper also used Ansoft software to do...

For manufacturing enterprises, holding a certain amount of inventory is necessary, excess inventory is not only useless but also occupied capital, therefore, inventory control is a good way to optimize the inventory struc-ture as well as to improve the utilization of the funds manufacturing enterprise....

In order to solve the recent privacy issues in the process of the smart grid data mining, this paper analyzes the data mining techniques for the smart grid data and states the existing research methods of the privacy issues in the process of the smart grid data mining; Then this paper designs a homomorphic...

In this paper, three fatigue models are employed and proposed for modeling the fatigue life of different fiber-reinforced composite material systems. In order to identify the unknown parameters in these models, Genetic Algorithm (GA) is used for estimating its values. This technique is a stochastic process...

With the development of science and technology, energy has been widely applied in various kinds of fields. Some studies have shown that the pumps and fans' consumption of electricity is about 6.1% of the country's electricity generation annually. The problem of low efficiency is serious. Nowadays, power...

This paper discusses the Dandong overlapping tunnel project in terms of the stability of existing tunnels by the approaching construction of overlapping tunnels. It uses the Peck formula and the theory of the Kinkler elastic foundation beam. The numerical model is established using MIDAS-GTS. The deformation...

Wireless sensor network has a broad application prospect in the national defense military, medical services and traffic control, and other fields. As the power energy of the wireless sensor network is limited, therefore the effective use of energy becomes a core problem in the sensor network query processing....

An underground geologic model which can reflect the structural characteristics as precise as possible is very important for oil and gas exploration and production. Three-dimensional structural modeling technique provide an effective method for subsurface formation architectural description. This article...

The development environment of Yangluo Port will influence the port’s development strategy. This paper applies the Fuzzy Analytic Hierarchy Process (FAHP) to the evaluation of port’s development environment, and provides a mathematical model about it, then gives the formula of weight. Through making...

A numerical simulation model based on the particle size composition of High Viscous Dredger Fill (HVDF) was established. Consolidation process of HVDF was in the action of Direct Drainage Vacuum Preloading (DDVP) and was in the Graded Vacuum Preloading (GVP), which was described the drainage consolidation...

This paper offers a brief introduction to the importance and development trend of automation system of transformer substation, proposing the basic concept of integrated automation of transformer substation and analyzing the system structure, communication mode, the basic functions and the development...

The traditional universal driving joint has the friction and wear, so its moving parts would get hot and its dynamic performance would become worse when working. Based on the Integration of motors, magnetic levitation, robotics and other techniques, a novel magnetic levitation spherical reluctance active...

By using the software FIRE, the flow structure of 186FA diesel engine were analyzed by numerical simulation. The indicator diagram, velocity field and turbulent kinetic energy in the cylinder were simulated by both the k - model and the large-eddy simulation(LES) model. The results shows that the mesh...

In this paper, we propose the development of multimedia digital library of popular news based on Functional Requirements for Bibliographic Records. The main motivation of this paper is to study the digitization of popular news, focusing on the conceptual design of a changeable data model the system is...

Self-reconfigurable robot is a kind of robot that is able to recover its original function after partial damage of the robotic system. This is achieved by making changes on the partially damaged robot. This paper put forward a kind of self-reconfigurable quadruped robot based on the resilient theory....

This paper discusses the new progress and field application of CO₂ flooding in low permeability oil field to improve oil recovery. The study shows that CO₂ flooding can improve the oil recovery rate of low permeability oilfield by more than 10 %.The practice shows that the liquid CO₂ injection in low...

In this paper, the function of auxiliary safety management subsystem of railway permanent way which used in the state analysis of the track is introduced. The content and process of the auxiliary management subsystem used in the state analysis of the track; the relationship between all components of...

Academic studies concerning pricing efficiency of stock market mainly focus on whether the stock market is an efficiency market and the market form, but do not give quantitative indexes to measure pricing efficiency. In this article, we employed a state-of-art Spring Oscillator Theory to study pricing...

The developing of the globalization of the world economy and regional economic integration, makes China, which is in the period of social transformation, have the situation such as: professional norms empty, professional norms confliction, professional norms unclear, professional norms dysfunctional....

As one of the important sectors of the national economy, the power industry management department should constantly expand the scale of power system. Therefore, it faces increasingly heavy grid development planning task. Based on the research of the vacant area inference, existing classification and...

Localization with FDOA measurements is an important passive location method. Traditional solution to nonlinear equations is Newton's iterative method. However, this method may encounter convergence problems. This paper proposes an algorithm that can find initial estimates by dividing target area into...

Artificial neural networks have been applied in many fields, and with the continuous improvement of neural networks and the combination of other new algorithms, the application fields of artificial neural networks have become wider and wider. In this paper, genetic algorithm is used to optimize the performance...

In view of the eddy current retarder (ECB) power consumption problem, a new type of split self-excited eddy current retarder (S-ECR) is designed in this paper. In order to verify its feasibility and get the best structural parameters, the influence of the structural parameters on the braking torque of...

Structural health monitoring systems measure structural deformations, vibrations, stress, etc., in real-time through sensor networks, comprehensively assessing the health of structures. The quality of monitoring data directly influences the accuracy of structural assessments and maintenance decisions....

Hydroponic agriculture utilises far less water and other resources than soil-based production. Due to the many variables, plant nutrients, and diagnostic methods, hydroponics cultivation is tough to monitor. Recent technical advances have helped find answers by enabling the use of AI-based control algorithms...

Data instances are organized into clusters through a machine learning technique known as clustering. This method is employed to categorize each data instance within a collection into specific groups. Ideally, data instances in different groups exhibit distinct attributes, while those within the same...

Nano-ZnO was successfully synthesized by a sol-gel method with an average size of 26.1 nm. The nano-ZnO was applied to coat the knitted poly(lactic acid) (PLA) fabric with or without further coating using a polyacrylate binder, and the UV protection ability and antibacterial activity of the coated fabric...

An intuitionistic fuzzy hybrid discrete particle swarm optimization (IF-HDPSO) is proposed for solving travelling salesman problem (TSP). By defining intuitionistic fuzzy charisma function, the IF-HDPSO algorithm exploits some other individuals to participate in the updates of velocity and position except...

3-Morpholin-4-yl-1-(4-nitrophenyl)-5,6-dihydro-1H-pyridin-2-one (1) is an important intermediate for the synthesis of many biologically active compounds. It was synthesized from cyclopentanone oxime (7) and 1-fluoro-4-nitrobenzene through three steps including rearrangement Reaction, condensation and...

Heilongjiang province is the lowest temperature provinces in China, the cold environment cause the freeze injury of the hydraulic engineering, the soil slopes of larger canal often collapse, so there is many difficulties in the water transmission of irrigation and draining canals and the engineering...

Bushing dielectric loss factor measurement test is a very high sensitivity. Through the analysis of the measurement data, it can be judged whether the insulation of the equipment is the whole damp, the deterioration of the insulation, and the local defects of the small capacitor. Introduces the method...

Based on analyzing the total energy consumption of cooperative transmission and the proportion of energy consumption of each node, this paper presents a method for calculating equilibrium degree of the node energy consumption and its balance scheme. Comparing with the traditional cooperative MISO scheme...

In this paper, the effects of EDTA and EDDS as chelating agents, chelating-induced maize remediation on Tl-contaminated soils and their heavy metal leakage characteristics under rainfall conditions were studied. The results showed that both EDTA and EDDS could promote the uptake of Tl by maize, and EDDS...

With the rapid development of digital technology, architectural interior design is facing unprecedented opportunities and challenges. Traditional design methods are difficult to meet the increasingly personalized and intelligent space needs, and new design concepts and technical means are urgently needed....

LAMDIK is an independent accreditation agency that accredits study programs in the field of education. SIMAK is a web-based application for the administration and automation of the accreditation process, can synchronize with PD-DIKTI, multiuser (assessor, study program, validator, facilitator), and can...