Advances in Engineering Research

This article presents reliability analysis of damping flange from dual mass flywheel. In this paper, workbench software was used to analyze the reliability of the dual mass flywheel damping flange. First, the mechanical model of the damping flange was built based on the dual mass flywheel's force transmission...

The purpose of this paper is to introduce hydroxypropyl-β-cyclodextrin(Hp-β-cyclodextrin) into ozonation, and investigate the oxidation properties of Hp-β-cyclodextrin after ozonation. In this study, Potassium indigo trisulfonate, (Indigo) and 2.2’-azino-bis (3-ethylbenzothiazoline-6-sulfonate, (ABTS)...

Fire accident in grassland is a disaster which endangered the pastoral area of prairie grievously, and the spread of fire accident will cause inestimable financial loss and vast environmental destruction. If we can estimate the extended tendency of fire in pasture land accurately, it will exert a beneficial...

The development trend of the world on a low carbon economy and green safe and reliable operation of the power system of the country's economic development put forward higher requirements, how to respond and adapt to changes in the external environment, to form a functional, reliable, viable mechanisms...

Establish 3-D geometry model including thoracic-lumbar-sacrum, thorax and pelvis based on CT data in IS patient, and then construct a completely finite element model based on the human anatomy. On the basis research on rapid design method of individual brace, simulate clinical spine stress by reasonably...

In this paper, we propose a cooperative transmission framework based on adaptive modulation and coding (AMC) system in multiple-input multiple-output (MIMO) fading channels. We consider the scenario that consists of one source node, one relay node and one destination node, they all equipped with multiple...

With the growing energy crisis, environmental protection becomes more and more important. People put more eyes on research and application of renewable energies. Among them, solar energy has being paid attention and has been affirmed by the whole world for its abundant amount, clean and less noise. However,...

Aluminum has an important position in the economic development of all countries in the world, especially industrial developed countries. Widely used in many sectors of economic and social development. In 2016, the consumption structure of China's aluminum sector is: 35% of buildings, 19% of transportation,...

With the extensive application of LED bulb in life, the traditional artificial assembly production has been unable to meet the current living needs. According to the structural characteristics of LED bulb, the assembly line is designed and the three-dimensional solid modeling and simulation is completed....

In this paper, the through-current experiments of various alloy materials in the analog ground fault state are carried out and the relevant force, heat, electric performance test and analysis have been accomplished too The part alloy materials which meet the requirements of the low resistance grounding...

This essay is aiming at the field of specific applications for aluminum electrolysis, building up a manufacture planning management system based on a kind of factory module as well as MES system platform and the process of achieving plan management. The plan management model covering the entire project...

The British specifications and Japanese specifications are often referred to calculate effective flange width in order to analyze shear lag effect of steel box girder. However, there are some differences between the two specifications. According to the two specifications ,the effective widthes of a simple...

The major issue of spontaneous heating that ultimately results in coal mine fires has long been a source of worry for the mining sector. Industry and researchers are both interested in learning what causes it and figuring out which coal seams are susceptible to spontaneous heating. The spontaneous combustion...

This paper proposes a face-based gender classifier which is based on Adaboost, and selects the face database with different color, angle and illumination. A variety of feature extraction methods are used to reduce the dimension, noise and calculation of the sample, and ensure a high recognition rate....

As an aided tool of sheet metal forming process, the technology of computer simulation can reflect the interaction between the mould and blank dynamically, and the thickness distribution during the whole forming process. In the paper, the thickness attenuation ratio under different key mould parameters...

In this paper the measured blast vibration signal of tunnel between Huaxin station and Huangmugang station of Shenzhen subway line 7 was analyzed, with blasting excavation way of benching tunneling construction method using different maximum charge of explosives. The peak vibration velocity and main...

After the effects of initial cold, take the strength changes of C30 and C50 concrete block and the result of beam test load, concrete strain, tensile reinforcement strain and deflection of the beam for analysis. The result showed that the trends of concrete C30 and C50 is consistent, which are decreased...

Substation basic is equipped with electric energy metering system, but the electric energy metering system does not have the energy metering run abnormal alarm function. This paper introduces a measuring equipment, using the existing data of electric energy metering system by expanding calculation, realize...

This paper refers to the HAPC of 400mm single stand reversible cold rolling mill, establishing mathematical model, simplifying and reducing orders for system transfer function on the foundation of reasonable assumption. This paper also designs PID and LADRC for reducing order model and uses fuzzy adaptive...

As a variety of interference exists in the real-time traffic data in the actual sampling environment and the traffic data is not stable, we do wavelet decomposition for traffic data in this paper. In order to get better de-noising effect, we add the noise to a set of given similar traffic signal, and...

In this paper, the composition, defects and microstructures of titanium ingots prepared by Electron Beam Cold Hearth Melting are studied. The results show that the defects of the titanium ingot are mainly distributed in the final solidified position, The microstructure is mainly composed of dense columnar...

The cavitating water jet is a new type jet with great potential and good efficiency, which has been applied widely in rock crushing, oil drilling, wastewater degradation, industrial cleaning and so on.Cavitating water jet cleaning technology was caused the attention in these years for good cleaning quality...

Distributed power access to change the trend and fault characteristics of traditional distribution network, the existing distribution network protection caused a huge impact. To meet the distributed power of access, protection methods must examine with the grid. After the analysis of distributed power...

Artistic creation is full of randomness,which means occasionality and unpredictability. Beauty created can not be repeated and it is generated by the random and uncertain. In the postmodernism architecture, uncertainty is the mainstream trend of architecture. Also it will be the future direction of the...

In north China, exterior insulation technology is adopted, brings a series of problems such as the lives of outer insulation material and building are different. A new composite insulation block has been put forward to solve these problems. The compressive strength and heat transfer coefficient of normal...

In this paper, a general mathematical model is shown through the mathematical analysis of the magnetic bearing. The linear expression of relationship between the electromagnetic force, the deviation of the displacement and control current of is provided by the finite element analysis, with Maxwell 3D....

We applied the definition and structural model of environmental dynamic value of substance in marine bay and the variables including basic background value, environmental background value, input value and environmental dynamic value in analyzing the change process and change trend of Cd in Jiaozhou Bay,...

Currently China’s water resources have met many problems, such as water resources shortage, water pollution phenomenon, flood and drought coexistence, water ecological environment deterioration and so on. Based on the series of objective facts, this paper from international and domestic visuals analyses...

In order to research the mechanics characteristics of potato stalk buds, Experimental determination of the potato stalk buds 25d bud age compression feature parameters, and the compression strength and the maximum compressive strain characteristics of the single factor analysis of variance test. The...

A region growing algorithm based on fuzzy connectedness is proposed in this thesis to solve the military targets' damage problems that the traditional region growing algorithm couldn't handle properly. In this algorithm, the fuzzy connectedness is regarded as the measurement of level of similarity between...

Two exterior trajectory models of guided bomb in aircraft coordinate system (ACS) and body coordinate system (BCS) are built for simulation and analysis under different meteorological conditions. Simulation errors of different modelling methods are studied and analyzed to verify the rationality of modelling...

This paper presents an improved hybrid multilevel converter for renewable energy generation. Topology and operating principles are investigated. Nearest Level Modulation (NLM) and control strategies under normal and dc fault conditions are studied. A 61 voltage-level model is set up in PSCAD/EMTDC. Simulation...

Sharing bicycles in the settlement of the user "last mile" short-distance travel needs and ease the urban traffic congestion plays an increasingly important role. In order to study the issue of sharing bicycles delivery, firstly, a bicycles’ market demand model considering the age distribution is established,...

This study evaluated the bioavailability of lignite from Shanxi Province (China) via using domestic anaerobic sludge as the source of exogenous flora. After pretreatment of lignite with hydrogen peroxide at different concentrations, the levels of soluble organic carbon and organic acid were increased...

Smart building is the inevitable trend of future architectural development. This paper first introduces the concept of smart building, and then gives the concept and characteristics of BIM. Using these characteristics of BIM technology, we can effectively improve the safety, energy-saving, efficiency...

In the high-speed system of space optical communication, NRZ modulation on differential phase shift keying, 66% duty cycle RZ modulation and 33% duty cycle RZ modulation. By using the Optisystem optical communication software design of DPSK optical communication system based on communication rate in...

In the process of building electrical equipment installation, if there is a certain problem, it not only affects the construction quality of power supply, but also affects the construction safety. This paper puts forward corresponding countermeasures aiming at building electrical equipment installation...

It is of great practical significance to study the new and efficient production methods to overcome the shortage of labor intensity and the low efficiency of the production line under the present situation of artificial palletizing blanks before sintering of brick billet into kiln. This topic is aimed...

Based on the theory of three-dimensional potential flow and considering the combined wind-wave, the motion response and tendon tension response of Tension leg platform with different pretension and number of tendons are studied by AQWA software. The results from analysis can provide some reference value...

Reducing fossil fuel consumption of transportation is one of the key for energy conservation and emission reduction of every megacity. The essential data of this research came from 4 similar kinds of touring coaches including 64 vehicle trips whose cumulative operating time and mileage were 778.8 hours...

In order to study the effect of lateral soil movement on the bearing behavior of the pipe pile, the six pipe piles under different lateral soil movement and different lateral movement position have been tested in lab. The displacement of pile top for the lateral displacement of the soil, the soil pressure...

Two machines driving one propeller, especially CODAD (Combined Diesel and Diesel) has been widely used in marine propulsion shafting for power performance and fuel economy, but there were few researches about the device for shaft vibration. In this paper, based on the independent design multi-functional...

D2D (Device-to-Device) communication is a new technology that allowing terminals communicate directly by reusing cell resources under the BS(base station) controlling.After bringing D2D communication mode into cellular network,and that will cause interference problems.This paper describes the generation...

Results are presented for the silicon carbide (SiC) vertical channel junction field effect transistor (VJFET) fabricated based on in-house SiC epitaxial wafer suitable for power devices. The Normally-off 1300V SiC VJFET device’s current density is 260 A/cm2 and current is 8 A at VG= 7 V and VD = 2 V,...

Breechblock operating force is one of the key test parameters of the shock test bed for gun breechblock system. With the design principle determined, the dynamics principle model of the shock test bed is established based on the virtual prototype technology. The kinetic energy theorem is used to calculate...

The metrological performance of flow meter should be tested under the condition of ambient temperature and humidity changes according to appendix A type evaluation outline of JJG 1033-2007 "Electromagnetic Flowmeter" verification procedures. In order to meet the requirements of the type of evaluation...

Finite strip element theory is applied to the analysis of single cell curved box girder. Firstly finite strip element theory is introduced and stiff matrix of the finite curved strip is deduced. The problem of the element coupling of strip element stiff matrix by using the orthogonal property of harmonious...

Substation is always equipped with electric energy metering system which does not have the function of error remote calibration. In this paper, we introduce the error remote calibration system related to energy measuring devices to achieve two functions: on the one hand is to minimize the relevant losses...

In this paper, according to the principle of Hough transform, using the multi - directional image information of an object to calculate the pixel points of the object in the space, and get the real three-dimensional image from the object surface texture mapping which is composed of pixel points. This...

The protection of drinking water sources is an important part of water pollution control and management in China. Drinking water sources is not only an important source of water for residents, but also plays an irreplaceable role in agricultural irrigation, flood control, power generation, aquaculture...

The research on whether can iron ore tailing improve the compressive strength of alkali-activated slag foaming concrete is conducted. The experiment shows that too little or too much powder from iron ore tailing will reduce the compression strength of alkali activated slag concrete, when powder from...

Coal is the most important resource in China, the number has been more than one-third of the world's coal total. Many problems caused by coal mining are very serious, such as the environmental issues, industrial accidents, resource destruction and other issues .So green mining technology in China's coal...

PEMFC (proton exchange membrane fuel cell) Stack temperature control system is a strong-coupling system with characteristics of time-change, long-hysteresis, uncertainty and nonlinear. The dissertation studied PEMFC stack temperature control used by BP neural network controller which has a good control...

The principle and characteristics of electrostatic desalination technology has been introduced, a small electrostatic desalination equipment has been made by myself with 10 electrode plates, and the spacing between two plates is 10 mm. The desalination of the equipment is better when the DC voltage of...

The buried sewage pipes of a large industrial plant area is deformed and blocked due to soil compression and other causes. The guided boring non-excavation technology is used to safely and efficiently complete repair for sewage pipes. Based on engineering practice, this paper discussed the working principle,...

The selection of ground motions can be developed on the basis of code provisions, and codes provisions are quite similar worldwide, for example, the main prescription is the compatibility with the design spectrum in a specified range of periods, and the minimum set size is typically from 3–7 records....

Key technologies of machine vision detection system for the industrial part are investigated and an intact set of high-speed detection system is developed. On the basis of introducing the entire design of machine vision platform, analyzing the software and hardware structure and fundamental principles...

In the view of the information inaccuracy and additional information in the web page recommendation algorithm of multi similar web pages, the data clustering effect is not satisfactory. In this paper, a new method for the image denoising method based on the rough set of Gauss block is proposed. Firstly,...

To investigate the transient aeroelastic responses of a folding wing during morphing motion, a time-varying aeroelastic equation in state space is presented. The structural model is established based on the component modal synthesis method. A time-dependent transformation is introduced to establish the...

The purpose of this study is to provide an improved design for the hydraulic system of a certain type of hydraulic elevator in the elevator test. This paper is mainly through the speed feedback control scheme to achieve real-time speed correction, adopted the speed bidirectional detection method to establish...

With the thoroughly implementation the of the concept of sustainable development, the electric cars become more and more popular, and as the increasing scale of mobile storage devices, electric vehicles, its ordered charge and discharge is playing an extremely important role in the smooth operation of...

Pile foundation of buildings have not only bear the load from the upper structure, but also bear the earth pressure from the slope, its load transfer mechanism is more complicated. Hence, it is important to study the pile-slope interaction mechanism, and to improve the lateral capacity of pile foundation....

The main drive system using for four-high rolling mill is usually a double closed-loop DC motor speed regulating system—whose performance influences the product quality directly. In this paper, the model specific parameters required for the main drive system are calculated by the method of engineering...

Boiler’s combustion efficiency directly reflects the status of its operation and affects the economical efficiency of the power plant.As we know,what mainly influences the combustion efficiency is the heat loss,and the excess air coefficient is an important factor affecting the heat loss.This paper’s...

Airplane frame parts can form by the method of increasing the transition mould. The main purpose of the transitional surface design is to change the material flow state, and make the material flow is uniform. Mainly studied forming process to a typical frame sheet metal part, analyzed the forming characteristics,...

The fracture problem around the center crack in an infinite transversely isotropic piezoelectric plate under the anti-plane shear stress and the in-plane electric load at infinity is studied. Using the complex function method and undetermined coefficients method, the analytical solutions of the stress,...

Objective: To evaluate the accuracy of CT in the diagnosis of esophageal fistula (Anastomotic leakage). Methods: Retrospective analysis of 186 cases of suspected postoperative esophageal postoperative intracavitary AL patients, 70 cases take oral 60% compound diatrizoate (contrast agent) CT examination...

Stability of high cutting slope concerns safety pass of road at the bottom of slope and has relationship with security and stability of buildings on the top of slope. On the basis of ANSYS finite element strength reduction method, this paper does elastoplastic nonlinear and large deformation geometric...

This paper presents the methane detection at low concentration based on 2f harmonic signal to achieve highly sensitive monitoring. Since methane is the characteristic gas in power transformer oil once a thermal fault at low temperature (

This paper evaluated the productivity of the construction industry in Henan province from three aspects including total productive efficiency, pure technical efficiency and scale efficiency, by using of the DEA model based on the construction of Henan province in 2000-2014 input and output historical...

The cognitive modeling of the HCI task has been a hot area in HCI research. And it is an important method to understand the cognitive decision process and mechanism behind operators’ behavior. Since the software of HCI task and the software of cognitive modeling generally run on different platforms,...

Based on the features of the falling film absorption, a CFD model of heat and mass transfer of falling film absorption in a vertical tube using LiBr /H2O as working fluid was presented. The CFD model using the volume of fluid (VOF) method was presented for predicting the mass-transfer process of the...

This paper analyzed the content and distribution of Cr in bottom waters in Jiaozhou Bay in 1983. Results showed that Cr contents ranged from 0.06-1.58 g L-1, and were confirmed with Grade (50 g L-1) in according to Chinese Sea Water Quality Standard (GB 3097-1997), indicated that the pollution level...

This paper introduces a system which is designed for the transmission design business which make it possible to achieve electrical design, structural design, technical and economic analysis, environmental design and resource sharing. This platform functions in various stages including the informatization...

A new trajectory tracking controller for a wheeled mobile robot based on back-stepping and Lyapunov approach is presented. The proposed controller is developed based on the kinematic model and dynamics model of wheeled mobile robot. Firstly, the kinematic controller is designed by using back-stepping...

The precision and reliability of sensors are tested rigorously under the influence of low temperature as on-line monitoring technology sensation unit of transmission lines. In the paper, bending amplitude method was applied in aeolian vibration monitoring devices of transmission lines. Device function...

In mobile learning concept . In the first part, the reconstruction of the digital learning resources classification model is established, and then the the cloud based education platform "teacher student subject knowledge ontology" three-dimensional space application model based on. Finally, it designs...

The stress-strain curve of fractured rock mass can be divided into two parts, the pro-peak and post-peak. The pro-peak part of the rock stress-strain curve is generally stable and its mechanical behavior can be described with classical strength theory. Rock post-peak stress is very complex and generally...

With the development of the mining industry, mining technology is constantly innovation. Mining technology plays a vital role in the mining industry. Mining technology is reasonable or not, and the level of mining companies technology, directly have impact on the overall effectiveness of the mining companies,...

CO2 flooding technology and sequestration is one of the main ways to avoid global warming. The existing research both at home and abroad and the experimental results show that as an oil displacement agent,the CO2 injected in the reservoir can greatly improve the recovery efficiency of oil and gas. At...

In the electric energy metering device, due to errors of a current transformer or a voltage transformer phase sequence and polarity, wiring false often happens in the electric energy metering device. It affects the accuracy of electric energy metering device and results in inaccurate metering. For this...

Roof leakage has become a common problem on housing quality, which not only affects normal use of houses, and erodes the main structure of buildings, but brings about great challenge to infrastructure maintenance and seriously shortens service life of buildings. Starting with the common causes for roof...

Since the airplane is invented by Wright Brothers, it has greatly improved people's traffic efficiency and produced large quantity of fortunes. We built a model to draw a sensible searching scheme. The major assumptions are: 1) the wind and the ocean current are only related to the geography location...

Based appear for magnetic navigation system for substation inspection robot navigation course accumulation of errors phenomenon, fuzzy PID control algorithm is applied to inspection robot navigation system, navigation path through the logic of correction, to achieve stability navigation. On the movement...

This paper designs a dynamic monitoring system applied to four cold rolling mill for Magnesium alloy sheet. The system select Siemens WinCC6.0 for Monitoring interface and Siemens S7300PLC for lower machine as the core for data communication and dynamic monitor, The main interface of the monitoring system...

An improved Allan variance method (IAVM) is proposed for the characteristics analysis of the band-pass mixed noise to distinguish the different types of the noise in the band-pass mixed noise and give the corresponding intensity coefficients of the power spectral density (PSD) of the noise. This proposed...

Owing to large capacity and high speed, DDR SDRAM has been widely used in the data acquisition system of time-of-flight mass spectrometer (TOF-MS) which can detect and analyze biological and chemical macromolecule precisely. Due to the particularity of the requirement of large amounts of data accumulation...

Based on the investigating and survey of the potential safety hazards of the buildings, a fuzzy comprehensive evaluation method was proposed for the safety evaluation of the existing buildings. First of all, establish a multi-level comprehensive evaluation model for the safety assessment of the existing...

On the basis of the discussion of green design, the characteristics of green product are analyzed. Pointed out that the green design is the need of sustainable development of human society, is the necessity of sustainable development. In order to make the social and economic sustainable development,...

In order to verify the conclusion of push-out test and further analyze the influence of each parameter on the hat-shaped shear connector, a finite element analysis model of shear connector was established; To study the influence of the change of the diameter of the steel plate of the hat-shaped shear...

On the basis of a clear definition of the meaning of the competitiveness of agriculture, proposed by four factors, 10 basic indicators constitute agricultural competitiveness evaluation index system, comprehensive evaluation identified by factor analysis, and the use of detailed statistics on the east...

Concave and convex flanging is a relatively common form in sheet metal forming.However,since the sheet edge of flange parts is an unclosed free state.After curve flanging forming,there is a shape distortion phenomenon in parts. This shape distortion has a great impact on the quality of flange parts.In...

This paper analyzed the community structures of phytoplankton in Fushan Bay in June to August 2002. Results showed that phytoplankton in Fushan Bay was dominated by Bacillariophyta and Pyrrophyta, whose species accounted for 74% and 24% of total phytoplankton species, respectively. Chaetoceros and Peridinium...

Concrete filled tubular arch bridge was widely used in China. The large dead weight and non-integrity of prestressed concrete deck above the arch went against the durability and bridge seismic design. Modified verbundfertigteil (VFT) was proposed as deck in the arch bridge. Modified VFT girder was convenient...

Offshore wind power is a frontier field of wind power technology, which is actively promoted by the countries all over the world. At present, UK offshore wind power takes the lead in the world, establishing mature offshore wind power management systems and procedures, and then provides references for...

The stiffness of fully cured two-component epoxy resin was studied by means of Dynamic Mechanic Analysis (DMA) in this research, as well as the temperature sensitivity and frequency sensitivity. The relaxation properties was included, both one fully cured resin and oven aged resin. Research results illustrates...

Arctic system is an important part of the Earth as a whole system, monitoring and research polar marine environment, to reveal the rapidly changing Arctic marine environment and its significance in response to the feedback effect of changes in the Earth. However, due to the harsh weather conditions of...

In this paper, the near infrared spectroscopy analysis technology, combined with the traditional appearance of quality testing and chemical analysis methods, the establishment of red date quality characteristics of different quantitative digital calibration model. Based on the accumulated data of red...

Taking example for Pu'er raw tea 7542(106) in paper, sample pre-treatment conditions ( Headspace) and detection of the gas chromatography mass spectrometry (GC-MS) were optimized. Under the condition of optimization, the chromatographic fingerprints of nine batches of Pu'er raw tea 7542 sample for different...

Color plays a significant role in the interior space design of high school libraries. From the perspective of the color’s influence on library users, this study analyzes how the scientific use of color can provide readers with high-quality reading atmosphere and explores the new development trends of...