Advances in Engineering Research

Nitrogen was introduced in the process of fix-bed pyrolysis reactor as convection gas, and the influence of convection gas/gas production rate ratio and material height on the heat transfer and pyrolysis products was researched. The results showed: With the increase of convection gas/gas production rate...

Machine maintenance in industry requires speed and convenience, one method is vibration analysis. Engine vibrations cause a pattern of sound emitted by the engine, where the sound of one engine mixes with the sound of another engine. Excessive vibration levels in the engine indicate damage to engine...

Based on spatial elasticity theory, the fundamental beam assumptions are introduced into the 20-node spatial isoparametric finite element that constructing the degenerated solid beam element in order to overcome the simulation limitations of the beam element on its cross-section scale. According to the...

Based on the analysis of the current situation of expressway network and the location distribution of earthquake disaster in Sichuan province,the paper did integration analysis to the evacuation control strategy, researched on reverse traffic control model and phased control model,finally proposed that...

This paper introduced several numerical solution methods including variable step trapezoidal quadrature method, adaptive trapezoidal quadrature method, variable step size Simpson quadrature method and Romberg integration.

Synthetic aperture radar (synthetic aperture radar, SAR) use a two-dimensional matched filter to improve the signal to noise ratio but the signal-to-noise ratio (SNR) gain of synthetic aperture radar (SAR) is controversial. The traditional method analyzes the SAR signal-to-noise ratio based on pulse...

Phenol is the major organic compound of coking wastewater. It is of biochemical toxicity, difficult processing, difficulty to be degraded and high cost in the treatments. Microbial fuel cell (MFC) is a new type of fuel cell. It can produce electron in the process of metabolism of electricigens and export...

Star sensor is an important part of the attitude control of a space vehicle. At the time of image acquisition, CMOS sensors will have some fixed pattern noise which will affect the image capture effects. From the practical application, this article apply the average of de-noising algorithm to eliminate...

This paper use RSSI wireless sensor network (WSN) to research robot indoor localization method. Location simulation analysis, which is processed by Matlab software, is used to adapt trilateration centroid localization algorithm (TCLA) and weighted centroid localization algorithm (WCLA). To verify the...

Stable and uniform sound distribution is a key factor in high precise volume determination of solid material especially for mass standards. A numerical study is carried out to study the distribution and uniformity of sound pressure. The FEM simulation results show that the sound pressure distribution...

Sustainability is a comprehensive concept to describe a pattern of development without losing coordination or over consuming resources. Our research is divided into three steps: assessing and forecasting sustainability, formulating development plan, and involving external factors.

316LN austenitic stainless steel (ASS) has been used as a magnetic support structure for ITER. Pulse current as a new materials processing method, has many remarkable advantages. In this paper, the pulse current was used to treat the 316LN ASS welded metal welded by narrow gap MAG welding. The influence...

With the steady development of artificial intelligence technology, the application of robots in workshop production has penetrated into multiple key links. This paper systematically sorts out the application of robots in production scenarios such as handling and assembly, welding and spraying. This paper...

This article elaborates monitoring system features, development status and technical features systematically, analyzes the needs of traffic monitoring systems and design appropriate solutions. Technologies of this system is J2EE based Java and MVC. This system considers the performance of traffic monitoring...

Confirming about the working point of the permanent magnet is an essential premise in the calculating of permanent magnetic circuit. In this paper, the choosing methods about the working point of the permanent magnet are analyzed overall. The calculating formulas of the optimal calculating are deduced...

In engineering application a quantitative description of both fatigue and creep damage mechanisms is demanded for high-temperature alloy. The present work employs the cohesive zone model to numerically simulate the crack propagation in a nickel-based super-alloy. Effect of loading hold period is discussed....

In this paper,an algorithm is proposed to recognize polygons. As a characteristic invariant the affine invariant triangle areas ratio of the same hemline was used to describe the polygon,and the fuzzy theory was applied in its recognition. Firstly,a pair of edges of two polygons-a target polygon and...

In order to explore the influence of Three Gorges Reservoir (TGR) operation on heavy metal pollution of sediment in tributaries, taking Daning river as a case study area, the variation characteristics of heavy metal distributions (in sections of DC, BSH, CZB, Yangtze River) were investigated, and the...

The straight-bladed Darrieus type vertical axis wind turbine (SB-VAWT) has received considerableÿattention due to relatively high efficency of wind energy and simple blade design. Slection of airfoil is crucial for aerodynamic characateristics of SB-VAWT. A numerical investigation into performance of...

Music as a part of people's leisure and cultural life is rapidly developing and constantly updating, there are many music has gradually been forgotten by people, the development of network technology provides an opportunity for better protecting music education resources; so the study of developing and...

Guanzhong traditional residence is involved in the traditional residence of North China, whose space layout is still traditional courtyard layout of China. Due to the impact of geographic position, culture, religion, life style and customs, traditional residence in Guanzhong is equipped with the space...

There was a great attraction to apply magnesium alloy as a biomedical material due to its biodegradable feature and suitable mechanical properties. In order to further improve the wear resistance performance of magnesium alloy, a micro-arc oxidation (MAO) coating containing MgSiO3 was generated on the...

With the widely development of high power and multi-channel system, passive intermodulaton (PIM) caused by passive components can not be neglected anymore. In this paper, an experimental investigation of the relationship between PIM levels and the carrier powers has been carried out and the results are...

With the rapid development of Internet, WeChat public platform has became a fresh battle field in ideology. Being an important force on promoting advanced culture and core values of socialism, with the aid of WeChat public platform, college are required to enlarge public opinion fields and firmly seize...

Using Uncorrelated Linear Discriminant Analysis ULDA algorithm, analyzing data of amino acid content in serum of cancer patients and healthy people, eventually successfully classifies the samples of cancer patients and healthy people.

According to current creep prediction mode, four kinds of concrete creep prediction model(CEB-FIP 90, ACI 209 (92), RILEM B3 and GL2000) are selected to analyze in this paper. Based on the same conditions for creep factors, some important parameters of four creep modes are analyzed and regular patterns...

Crag lurks danger to thorpe and road, which would bring on momentous losses of people and riches in case of collapse. Applicability of correlative theories and finite element method was studied. In allusion to specifically dolomite's occurrences and by virtue of data rooting in autoptic reconnaissance...

This paper in view of the architectural design of hospital inpatient department, has carried on the analysis from various aspects factor changes of medical model of historical development, social environment, national policy, the philosophy of nursing progress, society of spectrum of disease and medical...

Biogas technology, with the health, environment, economy and energy benefit, has attracted significant public and legislative attention for a long time. Despite the multiple benefits of biogas, there are some exist barriers including economic, political and social issues that have become major obstacle...

In standard runoff plots with 10° and 15° slope croplands in purple soil areas, the paper studies influences of plant hedge on slope water and soil loss for slope croplands in purple soil areas under the natural rainfall conditions comprehensively and analyzes control actions of plant hedge’s intervals...

With the socioe-conomic development of Shanshan region, water demand is rapidly growing. To make adjustments to the water resources carrying capacity, socioe-conomic and ecological environment, this study performed an index system for the water sustainability of Shanshan region. Based on the method of...

A parameter study is carried out to investigate the influence of various factors. The axial force, the width of the stiffening ring, the height of the ring, the diameter of the tube, the wall thickness, the length and the thickness of the joint are considered. At present, the ultimate bearing capacity...

Controllable weak magnetic field can be generated using circular Helmholtz coils. However, it is complex to calculate the internal magnetic field distribution. This paper mainly expounds the formation mechanism and the simulation method of controllable weak magnetic field. A simulation model is established...

The thin layer of MnO2 nanowires with a three-dimensional (3D) porous network structure is uniformly supported on the surface of cordierite honeycomb ceramic (CHC) monolithic substrate by the in-situ deposition method. A series of characterizations of scanning electron microscopy (SEM), X-ray powder...

According to the characteristics of geometric and non - smooth surface of soil fauna, we improved the mathematical model of the existing bionic moldboard,and constructed the optimization model of combined convex hull and corrugated bionic moldboard. In this paper, the convex hull of the mantis and the...

In order to understand the synergetic effect between the solution of tea polyphenols and sorghum red pigment, synergetic effect and optimal formulation of compound antioxidant with the response surface method were determined using the method of free radical scavenging under DPPH system.The results showed...

For the optimization of wind farm layout, the model of fan wake model, fan cost - benefit model and wind farm incremental capacity evaluation model are established in this paper. The simulation of the wake effect of the wind turbine is the basis for the prediction of the generation efficiency of the...

Based on the geographical data construction requirements of digital city management, current situation of fundamental geographical data and city management resources, and demands for such kind of data from land and planning department in Zhengzhou, we presented an integrative process for constructing...

A novel of embedded storage and transportation status monitoring system and sampling terminal node based on ZigBee and embedded technology is designed to acquisition the status parameters of the special equipment remotely in this paper. Wireless transmission network is established by ZigBee technology...

Based on the analysis of the Antarctic temperature change trend, this paper analyze the influence factors of the surface temperature in Antarctica, and established the corresponding model. Then, it extracts a part of the time series of dynamic data part provided by the site, and drew a timing diagram...

The screw connecting rod of a hoisting machine suddenly breaks during the service at temperatures below 20 °C. In this article, the fracture surface, material , heat treatment process and mechanical properties of the connecting rod are analyzed. We find the low temperature brittle fracture of the screw...

A NiCrAlY coating has been prepared by electrospark deposition (ESD) technology on gun steel and its isothermal oxidation behavior at 950°C investigated. The results indicated that the NiCrAlY coating consists only of a homogeneous single -NiAl phase; NiCrAlY coatings substantially increase the high-temperature...

We are always good at analyzing individual problems and finding their solutions using TRIZ tools. In practice, however, innovative professionals tend to be confronted with multiple problems rather than one. In this study, innovative tools such as “analogy”, “ideal final result” (IFR), “resource analysis”...

In this paper, the vibro-acoustic response of functionally graded materials (FGM) plates subjected to thermal environment are investigated analytically. The governing equations of the FGM plate subjected to thermal environment are derived based on the classic plate theory through Hamilton's principle....

Through the experimental test and cfd numerical simulation of the new valve body of the adjustable wearable orifice plate, it is proved that the orifice plate has good stability and regulating performance for the air volume of the dust-removal system under different pressure fluctuations. In view of...

The idle time power consumption of universities has a significant impact on the total power consumption of universities. In the paper the power consumption problem is analyzed from the definition of the power consumption of idle time, idle time monitoring of power consumption and idle time factors influencing...

The basic ant colony algorithm converges slowly, is prone to plunge into partial optimum. This paper proposes an improved ant colony algorithm with two highlights. First, dynamic candidate list (DCL) strategy is introduced. In the route construction, candidate routes, whose fitness value surpass some...

A gas pressure control instrument for air-assisted extrusion has been manufactured by us. The principle, hardware connection and software design of this controller are introduced in this paper. The PLC micro controller is assembled in hard connection with pressure sensor and control valve. The 24V power...

Cognitive radio network is a Swireless network with transceivers that can intelligently detects which communication channels are in use and which are not in use. In a cognitive radio network, a transceiver uses intelligence to determine which communication channels are being used and which are not. By...

The knowledge of degree of freedom (referred as DOF) is indispensable before a parallel mechanism is designed, but the traditional Grubler-Kutzbach formula (referred as G-K formula) which is widely used is not appropriate for complicated mechanism, especially the hexapod robots. In order to derive the...

The pairwise sequence alignment algorithm, Needleman-Wunsch is one of the most basic algorithms in biological information processing. However, the Needleman-Wunsch algorithm based on dynamic programming gets optimal alignment results with high time complexity and space complexity,which is impractical.This...

There has a constant barrage of worms over the internet in recent years. In order to effectively prevent worm spreading, researchers are trying to understand the behavior of the worm propagation with the aid of epidemiological models. In this paper a worm propagation model with time delay and quarantine...

In this paper, the bathtub water thermal insulation problem has been studied, it analysis the effect to heat dissipation caused by body movement, and determine the input hot water flow and the output water flow according to the law. Thereby keep the bath water temperature close to the initial one. Firstly,...

Transfer function models is of considerable interest in economics, engineering, biology, and many other fields. Models of this kind can describe not only the behavior of industrial processes but also that of economic and business systems. Transfer function model building is important because it is only...

A simple and effective method has been used to prepare graphene oxide and/or partially reduced graphene oxide–polypyrrole (GO/Ppy and PRGO/Ppy) composite with sandwich structures by using the soft template method. In the case of GO/Ppy8, a high specific capacitance of 456 F/g at a current density of...

Association rule mining is the core technology of data mining. The Apriori algorithm is introduced and applied to the process of students taking courses and teaching themselves by a network teaching system. On the basis of large amounts of data, frequent itemsets will be found by the Apriori algorithm....

In recent years MANET gain a significant attention for the potential application in battlefield, disaster relief, traffic monitoring and environment monitoring. Construction and maintain of virtual backbone, and energy effective routing in mobile ad hoc wireless network come to be the basic and main...

The existing national garden city assessment standard mainly uses the method of the qualitative evaluation, the means is unitary, makes the appraisal result to lack the scientific and the authority.Aiming at this problem, this study on the basis of the existing standard proposed the combination of subjective...

by establishment of Midas FEA model and combining with the characteristics of temperature field, the research is carried out on temperature field, it shows that temperature field of the plates inside and outside surface is in the time lag relationship, and thermophysical properties of concrete is little...

With the rapid development of the network and the growing maturity of the related teaching software, music teaching system as an aid teaching methods is the development trend of university music education. This paper designs the music teaching system based on J2EE. First, studies the key technologies...

Based on the introduction to the concept and calculation method of tourism ecological footprint, the tourism ecological footprints of 8 minority autonomous prefectures in Yunnan province are calculated and analyzed according to the data of the statistical yearbooks of Yunnan province in 2014. The results...

With the increasing large space buildings, the suitability of sprinkler has been challenged using in such large space situations. The automatic jet fire extinguishing devices based on infrared were designed and used to extinguish fires. The accuracy of the devices will significantly reduce in the windy...

DNA methylation is an important epigenetic modification mechanism, interacting with histone modification, changing the structure of chromatin and regulating gene expression. Meanwhile, there is a close relationship with cell proliferation, aging, cancer and other life phenomena. DNA methylation includes...

The manganese oxide (MnO2) nanosheets supported on cordierite honeycomb ceramic (CHC) were synthesized via in-situ growing hydrothermal method. The effects of CH3COOH precursor concentrations on the morphology, crystal structure and toluene purification activity of MnO2/CHC catalyst were mainly investigated....

IPv6 has a massive address, multicast ,neighbor discovery, auto-configuration, service quality, removable and many other new features, as the core technology of the next generation IP( Internet Protocol). IPv4 to IPv6 transition is imperative. This paper discusses how to achieve a smooth transition from...

Tooling plays a critical role in the accuracy and precision of the produced parts in manufacturing. Certain established parameters need to be followed while designing the tools. The choice of material, geometry, tolerances, and surface finish of tools depends on the application. 3D printed parts with...

"For a city, the most important thing is not architecture, but planning." Ieoh Ming Pei, a famous Chinese architect, once said. City planning is a comprehensive development tasks and objectives within a certain period. In this paper, we first select 20 indicators ,which conform to the ten principles...

Nanosize SAPO-34 zeolite was successfully prepared by hydrothermal method using tetraethylammonium hydroxide(TEAOH) and triethanolamine(TEA) as template. It was investigated by X-ray diffraction and scanning electron microscopy. The results show that the dual template can control the particle size and...

The flow of information has never been as easy or wide-ranging as it is today. I are tasked to explore the evolution of the methodology, purpose, and functionality of society’s networks by taking a historical perspective of flow of information relative to inherent value of information.the speed of information...

A nonlinear finite element analysis is carried out for the whole process of elastoplastic deformation considering both material and geometry nonlinearity, and the limit states of damage and failure mechanism were studied. According to the analysis, the joints studied show great bearing capacity, which...

Estimation of solar radiation (SR) is important for energy plan, architectural design and solar energy systems. In China, it is necessary to explore estimating methods of SR because of the limited radiation measurement data. Based on meteorological data at 46 stations, temporal and spatial variations...

In this paper, a thresholding algorithm combining local and global region is proposed in order to perfect the vision of line-heating robot, segment foreground objects and background accurately, eliminate environment effects. The thresholding method combines the advantages of both local and global threshold...

This paper analyzes the design requirements of high-performance EPS controller, on the basis of which, we select Freescale Power Architecture ECU MPC5602P special for EPS. By the means of Modular Design, we propose a new design for EPS controller hardware, which focuses on MPC5602P minimum system, power...

Due to concentrated suspensions for solid dispersed phase and liquid mixture, the diverse nature, so concentrated suspensions of two-phase flow system in the transport process is very complex. Two phase flow is a complex nonlinear dynamic system. In the numerical simulation movement of two-phase flow...

A 310kW steam generation system by the heat utilization of mesothermal solar was built and the thermodynamic model of main parts-solar collector and heat transformer were developed. In different conditions, the impact of solar radiation intensity, recycle ratio of condensate water and ambient temperature...

To address the “memory wall” problem that limits the computing power of processors due to the traditional von Neumann architecture’s separation of storage and computation, the Processing-in-Memory architecture, which integrates storage and computation, has become a research hotspot in the current new...

Fuel cell is attracted much attention as an efficient power, low-pollution means of generating electrical power. In this paper, the fuel cell power generation system problems are described in detail, and expounding on the principle of single battery, power system working principle, characteristics, and...

Ultrasonic surface rolling process (USRP) as a novel surface nanocrystallization method generates severe plastic deformation in material surface through combined static extrusion and dynamic impact. Since the dynamic impact acts at ultrasonic frequency, the elastic-plastic deformation is mainly induced...

The waste pomelo peel modified and orthogonal optimization of adsorption conditions of neutral red was studied.The results showed pomelo peel modified with 0.1 mol-L-1 acetic acid was the best.The optimal processing conditions were as follows: 100 mL neutral red solution of 200 mg-L-1 ,adding 3.0 g-L-1modified...

In this paper, based on the measured signal, we use the least squares method to test the theoretical relationship between the vibration signal and current .Then, we use the Fourier transform data to analyze the relationship between amplitude and current .Finally, we analyze the relationship between energy...

In this paper, a new nature-inspired optimization algorithm, based on the prevalent mechanism of infectious diseases, called Hybrid Infection model optimization Algorithm HIA , was designed. The HIA algorithm mimic the transmission mechanism of infectious diseases, needs neither the gradient information...

Magnesium ammonium phosphate by adding magnesium salt and phosphate to ammonia nitrogen landfill leachate,The medicament and ammonia nitrogen landfill leachate Mg2+ PO3- ions in NH4+ after chemical reaction of producing magnesium ammonium phosphate.In the whole reaction process is influenced by pH value,reaction...

Cast-iron parts are employed widely in all kinds of industries, which are very difficult to repair with overlaying welding methods such as electric arc,Ar arc, etc. Laser cladding is a great approach to repair this kind of parts. This paper did some experimental research of laser cladding reparations...

The design and construction level of power grids are increasing rapidly with the development of China's power industry. The tower of Transmission line has become an important forced fulcrum. Safety and economy are basic requirements of conventional structural design. However, making the transmission...

Space station redocking is a long period process which suffers uncertainties from external environment and space station itself. Dynamic model of redocking is derived firstly, then generalized Polynomial Chaos (gPC) method is used to analysis the influence on attitude motion caused by uncertainties....

A field trial with 2 kinds of humic acid fertilizers (i.e., humic acid and weathered coal) being added to the balance use of nitrogenous, phosphorus and potassium fertilizers for 3 years was carried out to test effects of tea's yield, nutritional quality and soil fertility in a tea garden. And 4 treatments...

Based on summary and analysis of research results for RC frame structure retrofitted by FRP, the significance and necessity of elasto-plastic time history analysis was pointed out. Some key issues of elasto-plastic analysis using ABAQUS for RC frame structure retrofitted by FRP were discussed in the...

This paper first introduces the method of drawing an efficient outdoor small object group widget batch, then design a representation to the method of creating widget visible set search strategy based on improved BSP tree and its corresponding to the efficient use of memory, and finally achieve the efficient...

Is the focus of attention from researchers with the high speed development of economy and the process of urbanization continues to accelerate, atmospheric pollution, ecological environment deterioration problems have become increasingly prominent, many cities have launched a ecological garden city to...

Using image processing, recognition technology and edge extraction technology, the real particle morphology and distribution of TiC/AZ91 composites are obtained, and the finite element numerical calculation model with different particle shapes is constructed. With the help of ANSYS finite element software,...

The pure silica hydrosol and phosphorus-doped silica hydrosol was prepared using sol-gel method with methyltrimethoxylsilane(MTMOS) and tetraethoxysilane(TEOS) as precursors and ammonium biphosphate as a flame retardant(FR) in the presence of hydrochloric acid and cationic /nonionic surfactants in aqueous...

With the consistent growth population and urbanization, the concept of sustainable development will play an more and more indispensable role in city construction. In this paper we set up fuzzy comprehensive evaluation model based on AHP.We begin to choose some indicators to build a metric to measure...

Some times, the input-port of a single supply A/D converter needs a high impedance S/H switch when it does not supply power. Now we introduce a digital logical circuit to realize it. Through this digital logical circuit, when analog input signal is more than 0V, the analog input port to power or ground...

The direction and limitation of desulfurization and denitrification reaction were analyzed by calculating thermodynamic functions, and the reaction mechanism of desulfurization and denitration was proposed. The pollutant removal efficiencies were deduced by the equilibrium partial pressure of SO2 and...

In a proxy re-encryption system, a semi-trusted proxy can convert a ciphertext originally intended for Alice into one encrypting the same plaintext for Bob without seeing the underlying plaintext. However, a fine-grained delegation is demanded in some scenarios. For this, Weng et al. introduce the notion...

Predicting and modeling the water scarcity condition is a complex problem. In this article, the regression model predicting the water demand and supply and the gray relational model analyzing the factors of water scarcity are proposed. Take Henan for example, Henan is heavily lack for water. To remit...

The thermo-oxidative degradation behavior of the B-PF was studied using thermal gravimetry analysis (TGA-DTG) method. Compared with the unmodified resin (PF), the temperature at the maximum decomposing rate of the B-PF resin increases by 54 and its oxidative residues yield at 1000 enhances by 17.99 percent....

Advanced persistent threat (APT) is sophisticated cyber-attack and has attracted lots of attention in cyberspace. Traditional defense measures based on signature matching are insufficient to detect APT, such as Stuxnet, Operation Aurora, Duqu, Flame, Red October, Miniduke and so on. In this paper, we...

Double-stator permanent magnet motor (DSPMM), with special structure characteristics, has many excellent performance features. Firstly, this paper researches the structure parameters of the DSPMM, including the air gap length and pole-arc coefficient. According the research, a DSPMM of the same size...

The flow around a circular cylinder is one of the classical problems in CFD, in engineering will often encounter this kind of problem, such as river flows through Piled Wharves, piers, offshore drilling platform pillar, and all kinds of large-scale industrial equipment and facilities how better resistance...