Advances in Engineering Research

Effect of thermomechanical processing on the mechanical properties of low carbon cold forging steel was investigated for different processing parameters on a laboratory hot rolling mill. Fast cooling is a key factor in thermomechanical processing. The mechanical properties of specimen 2 which was fast...

This paper aims to establish the connection between case-based reasoning and nonmonotonic reasoning. In particular, we suggest to make nonmonotonic inference using case-based reasoning. The key idea of this work is that nonmonotonic reasoning should be considered as an inductive process. When provided...

The Internet of things is network connected things. Internet of things is generally divided into three layers, perception layer, transmission network layer and application layer. Sensing end of the sensing layer is the electric sensor mostly used currently. But with the rapid development of optical fiber...

A levee road is a component of a levee project. The subgrade of a levee road is the levee itself and usually it is submerged in the water. A special attention has been paid for slop stability and seepage of levee road under submerged condition during design and construction phases. This study investigated...

Melatonin is a ubiquitous indol molecule and has powerful functions in relieving abiotic stress responses. In our study, we used the kiwifruit seedlings as the materials and investigated the efficiency of different concentration melatonin (50 μM, 100 μM and 200 μM) on protect photosynthesis compared...

Electrolytic manganese residue (EMR) is an acid filter residue and contains a large amount of hazardous substances. The plasticity and sintering properties of EMR heated at 920-1020 are measured. EMR primarily consists of quartz (SiO2) and chemical gypsum (CaSO4·2H2O), and has a high plasticity. The...

With the rapid development of network technology and digital technology to media content-based digital media industry, the rapid growth worldwide. Thus digital media technology gradually being great concern academia and industry, many countries have developed relevant development strategies and objectives....

As being used generally in numerous numerical calculations and models, Hertzian dipole’s calculation show its importance. This paper begin with the very basic level to deduct the equations of a Hertzian dipole fed by a current in time-varying fields in spherical co-ordinates, and then a simulation in...

In the network planning and optimization of mobile communication, cellular signal strength estimate results not only determine the rationality of the planning results, but also affect the quality of the network optimization, so designing accurate signal strength estimation methods is the key problem...

Due to the effect of the marine environment, the marine pipelines would drift away because of the water buoyancy when the pipeline laying and operation, as well as suffer the damage from the other external factors. Therefore, we need to coat a concrete layer on the anticorrosive pipe’s surface with a...

The effect of grinding in different pure mineral has been generally studied. However, very little work has been done in mixed skarn tungsten. This paper describes the breakage rates of the mixed skarn tungsten from milling kinetics at a laboratory ball mill. Firstly, the breakage rates of different particle...

Build a platform of informationization as teaching auxiliary has become the mainstream teaching methods in all kinds of school under the network environment. It has the main target of the current middle school English teaching reform that involve various types of multimedia teaching resources into the...

Melatonin (N-acetyl-5-methoxytryptamine) is a low-molecular-weight molecule having an indole ring structure and considered as the best antioxidant substances. However, the role of melatonin in low light stress remains unknown. Our study investigated the possible role of melatonin on secondary metabolite...

By comparing the nitrification and denitrification intensity in sediments of different aquatic plant populations in Balihe Lake wetland, the main factors influencing sediment nitrification and denitrification intensity under different water depths as well as different aquatic plant populations were discussed....

This paper focuses on the development of microstructure of TiNb 40 alloy after severe plastic deformation. Primary billets (blocks) are Ti alloy cast with 40% Nb mass which are exposed to a combined two-stages severe plastic deformation method, including abc-pressing and multi-pass rolling in grooved...

By calculating carbon sink of vegetation in a natural scenic area and tourist carbon footprint, carbon distribution load rate, carbon distribution equilibrium degree and carbon distribution order degree were introduced to study the carbon distribution order in a scenic area quantitatively. Then Simulink...

With the rapid development of high-speed railway technology, more and more countries enjoy the convenience which travels with high speed train.Most of the high speed train running on the railway use distributed power technology, the converter on the train get power from traction network to supply the...

In this paper, we did research on the key technique of wireless network systems based on ZigBee and related techniques. ZigBee wireless sensor network is composed of multiple interconnected ZigBee nodes through wireless channel which supports three types of network topology star, tree, and mesh. Although...

The application of effective superplasticizer is helpful to improve the working performance and durability of concrete. In our work, several high performance polycarboxylate-based superplasticizers were prepared by modifying the commercial products with two types of thickening agents. Their dispersion...

Melatonin (N-acetyl-5-methoxytryptamine) in plants is to act as an antioxidant providing protection against environmental agents. In our study, we used different concentration of melatonin (control, 50 μM, 100 μM and 200 μM) to investigate the effect of melatonin on antioxidant system under low light....

For enterprises, it appears especially important to survive in the increasingly fierce competition in the business and strive for more customers. If they understand what customers need and interested better, and make key decisions that can attract more users to buy their goods, then they will make more...

There are the chassis exposed and the lack of cockpit problems in Southwest hills multifunctional mini-chassis. In the case of meeting practice, this exterior design has simple lines and generous model. The unique detachable box has solved the heat radiating, drainage and other key issues, and users...

In this study an in situ surface enhanced Raman spectroscopic (SERS) method was developed to rapidly and sensitively detect Ferbam on spinach leave surfaces directly without extracting them out. Ferbam was used to contaminate the surfaces of spinach leaves. Then branched gold nanoparticles (GNPs) colloids...

Test of the rheology behavior for modified skim rubber (MSR) were carried out with rubber processing analyzer (RPA), and mooney viscosity were carried out with Mooney Viscometer. The results showed that mooney viscosity of MSR is lower than skim rubber, and it is higher than SCR-5 (Chinese Standard Rubber-5)....

Group key management plays an important role in ensuring the safety and reliability of the VANET (vehicular ad-hoc network) over the channel. Through considering the characteristics of VANET communication and topology, a VANET group key management scheme is proposed based on random transmission which...

A single-buoy wave energy converter (WEC) consisting of double hydraulic cylinders is designed to promote the conversion power of traditional oscillating buoy WEC by absorbing the energy of pitching motion. On the condition of linear, regular waves, the nonlinear coupled equations of the pitching-heaving...

The Nexperia PNX1700 Media Processor is a complete Audio/Video/Graphics system on a chip that contains a high-performance 32-bit VLIW processor, capable of high quality software video, audio signal processing. Based on Philips Semiconductor's multimedia processing chip Nexperia PNX1700, designs a new...

Due to the influence of gray contrast ratio on background image with the target vehicle, traditional vehicle detection algorithms cannot adapt to complicated traffic environment. This paper proposes a new vehicle classification method based on locational matrix and minimum of local edge region. First,...

Tailings pond is an important basic facility in mine production. Its safety operation is not only related to the normal production and operation of enterprises, but also has important influence on the life and property safety and ecological environment of people in the downstream and surrounding areas....

The paper designed a WLAN system with RFID systems joint locating algorithm based on Federated Kalman Filtering. For the problem in indoor mobile node single positioning system, such as insufficient positioning accuracy, longer positioning time and not ideal algorithm complexity, it was proposed that...

In this work a wall-modeled LES is developed to solve the basic flow character over rough wall on high Reynolds number without resolving the details of the roughness elements. The averaged roughness shear stress can be combined with the smooth wall shear stress in the inner layer wall-model. The instantaneous...

AGC, Auto Gain Control, is a very important design module in HF transceiver. AGC makes fearfully important effect on improving receive range of receiver and overcoming near-far effect of wireless link. This paper discusses in detail the idea and method of project design of the AGC circuit, affording...

In order to improve safety during lane change, we proposed lane change intent prediction method based on neural networks and Bayesian filters. The method uses the lane line sensor, steering wheel angle sensor and in-vehicle CAN bus acquisition characterization parameters. The above acquisition parameters...

In the high power traction driving system, induction motor is widely used with its advantages of strong structure, high reliability and low cost. When the voltage source inverter is used as the driving device of the induction motor and the motor speed exceeds the rated speed, it is required to consider...

With the surging emissions standards for cars and strict and the application of advanced emission control technology, the influence of fuel quality on vehicle emissions is increasingly important. As a result, automobile, petrochemical industry in the United States, Japan, Europe and other countries and...

Five 5MW wind turbine blades with different ply orientation are modeled based on 3D shell element. The MPC method and a beam element are used in calculating their section stiffness. Bend-twist coupling parameters of the five models are calculated. Results show that section stiffness of wind turbine blade...

In order to improve the utilization of solar energy and to reduce the energy consumption of an auxiliary heat source, this study investigates a phase change heat storage device for an LPG vaporization system utilizing solar assisted heat pump (DX-SAHPV). In this study, paraffin was chosen as the phase...

The performance of finger seal as an important component has decisive influence on performance of aeroengine. The complicated operating state of aeroengine, such as assembly condition, also has important influence on finger seal performance. However, equivalent dynamic model has not considered this factor,...

The hydrogel is a three-dimensional reticular polymer with high water content, which was used in various fields such as medicine, biology and environmental protection. However, the characteristic of lower mechanical properties limited its application. Therefore, the improvement of the mechanical strength...

In this paper, a unified viscoplastic model was utilised to numerically simulate cyclic hardening of a nimonic alloy 75 under multiaxial non-proportional cyclic straining at elevated temperature. Description of the constitutive model and interpretation of material parameter were also presented. Constitutive...

Since the computation ability of computer improves dramatically, a lot of new meta-heuristic methods arise. All those algorithms are originated from some mechanisms in nature, and are similar in structure and widely used to solve global optimization problems. However, evolutionary algorithm, such as...

Using computer to make face model, establish facial expression animation and exaggerate facial image processing is a hot research topic in the current, which technology has a broad application prospect and huge economic benefits. For example, remote teaching, film and television entertainment, video...

This article mainly used Fourier series type SPWM inverter output voltage waveform for the quantitative harmonic analysis. This paper expounds the main reason for the harmonic of the inverter. In this paper, the quantitative harmonic analysis method to eliminate the harmonic pollution green grid provides...

For the traditional enterprise sustainable development of technological capabilities, the main research of domestic scholars is to use the high-tech to improve the technology, scholars take coal, textile, automobile, petrochemical and other traditional enterprises as an example, to explore the process...

Pyromellitic dianhydride (PMDA) was prepared by an alkali oxygen oxidation of anthracite and selectively decarboxylation of pyromellitic acid (PA). Tetraoctyl Pyromellitate (TOPM) was synthesized by the esterification of PMDA with isooctyl alcohol. The influence of temperature and time on the yield of...

Six group of axial compression tests of sandstone were conducted in laboratory, and the infrasound signals of each test process were recorded synchronously then the time-frequency characteristics of all signals have been analyzed to find the failure precursor information, the results show that: The infrasound...

Based on the connotation of pollution footprint and the index model of water pollution which guided by ecological footprint theory, the water pollution footprint of Jiangxi province from 2004 to 2015 was calculated according to the survey of water pollutant emission statistics. Temporal dynamics and...

Based on finite element analysis, natural convection heat transfer and other theory, we established finite element model of optical feedthrough and we got the natural convection coefficient of air at 140 . Through the study of thermal analysis of fiber feedthrough, we got the temperature field distribution...

This paper used the methods like literature data method to analyze the present situation of university sports information management, expound college PE informationization goal, and use UML to conduct university sports information management system function analysis and design from the perspective of...

Timoshenko beam with variable section is widely used for the sake of good mechanical behavior and economic benefit. In order to improve analytical accuracy, stiffness matrix of Timoshenko beam element with arbitrary section was founded. According to the relationship between geometrical deformation and...

With the development of society, science and technology in agriculture has gained more and more attention. The paper aims at sunlight greenhouse to design an automatic circulating temperature control system based on SCM--STC15F2K32S2. The system collects the greenhouse temperature passing to the SCM...

To obtain a good Cherry preservative, the author prepared mercapto Chitosan and metal ion complexes with solid-liquid reaction. Besides, the Cherry preservative was prepared by modified Chitosan materials. It was obtained that the optimal concentration of chitosen acetate for fresh cherries is 10g/l...

Considering the immnuoisolation from the neural stem cells (NSCs) and endothelial progenitor cells (EPCs), the requirements of the carrier, shear tolerance and other factors, this study designed an immunoisolation perfusion co-culture bioreactor system, by dynamic perfusion culture environment of its...

Order beauty is the core of graphic design, with its good works follow the rules of th11e performance of the order (such as symmetry, golden section, etc.) consciously or unconsciously. In graphic design, these rules reflect the basic principles for the design geometry whose proper use can make the design...

Tetra-(hydroxypheny-hexfluoropropyl) zinc(II) phthalocyanine was synthesized and its structure was characterized by elemental analysis, IR, MALDI-TOF mass, and 1HNMR methods. Its photophysical properties was measured by UV/Vis, steady-state, and time-resolved fluorescence spectroscopy. The bulky fluorinated...

To solve the traditional problem that the situation in mine is unknown in time, a kind of wireless monitor system based on ZigBee technology is designed. In this system, the security manager can real-time monitor the gas density of multi-location .Compared with traditional system, this system is portable...

In software product development process, software usability testing is essential and must be carried out in the actual work tasks and operating environment of the user. Expand the availability of this article assessment of software testing based on analytic hierarchy process (AHP), it qualitative and...

The combustion characteristics of corn stalk and coal gangue mixture (1:4, 2:3, 3:2,4:1) were studied by thermogravimetric analysis. By the data analysis to obtain its combustion characteristics peak fire index, index volatile, flammable index, comprehensive characteristic index and other characteristic...

A new dipping basalt fiber reinforced concrete (DBF-RC) was developed in this study. The surface of fiber was modified by dipping into epoxy resin. The mix of DBF was first researched on cement mortar, and then on concrete. The workability and mechanical properties of cementitious materials were investigated....

With an area of more than forty thousands square kilometers, rich geological reserves have been proved in Sulige gas field and thousands of gas wells have been constructed there. It is a high cost to open or shut in so many wells manually and labour intensity is great for workers. To meet the requirements...

The mechanical model analysis of the rigid joint of the key beam column connection of the portal frame of the industrial building is given in this paper.The structure form of joint has great influence on the stress state of high strength bolt connection.The calculation model of bolt is matched according...

In recent years, the growth rate of wind power in China installed capacity has tended to be stable, and the competition among wind power equipment manufacturers has become increasingly fierce. In order to analyze the industrial performance of wind power in China, the paper summarized the status quo of...

For staff, environment, equipment and management the four aspects, the early warning index system of coal mine safety production adopts the additional momentum method and adaptive vector, particle swarm optimization (PSO) algorithm and the method of variable weight and asynchronous learning factor and...

Evolution of adiabatic shear bands in zirconium alloy under dynamic deformation was investigated by means of split Hopkinson pressure bar impacted at different strains and strain rates. The results show that adiabatic shear bands were the main plastic deformation mechanism of zirconium alloy subjected...

Test method for observation of geotechnical material in structural damage has become one of the hot field of mechanics, which is the basis to establish the structural model. The authors use real time CT test of triaxial stress in undisturbed loess during triaxial shear tests - strain were studied. The...

In order to investigate mechanic behaviors of the orthotropic deck welding conformation details of highway steel bridge, take Zhongdu Yangtze River Bridge located in Jiangjin of Chongqing district as an engineering background, the 3-dimension spatial section model of steel box girder was firstly established...

For high-precision position servo system has run repeatedly on the properties of iterative learning control (iterative learning control, ILC), you can get totally theoretical position on track. But in fact, many of the servo drive usually consists of commercial products, and these products can not be...

Transformer substation operation process should first ensure the running safety. Job skill of substation operation staff is one of the important factors to make sure the safe operation of power system reliability. Therefore, the attendant must pass professional training to mount guard operation. Traditional...

To verify the fatigue life of a hybrid bus frame, the finite element model of the frame is built, and the equivalent stress distribution of the frame was got. Multi-body dynamics vehicle model was built in ADAMS/Car. The simulation analysis was conducted based on the road spectrum compiled by MATLAB...

In recent years, aluminum enrichment in soils is exacerbated. The amount of aluminum exchange in acidic soils directly affects the level of soil acidification. Aluminum toxicity-neutralizing capabilities of the microorganisms that have survived under the aluminum toxicity selection determine the harmfulness...

Multimedia animation demonstration, as a broad market development prospect and important application field of Flash animation, has a very important significance and value in the field of education teaching. Combining high school knowledge, this paper gives a detailed overview of AS3.0 features in Flash...

As a major branch of environmental audit, environmental performance audit occupies an important position in the environmental management system.At present, the environmental problem is becoming more and more serious.Can you find a way to the sustainable development has a relationship with the whole nation's...

In order to enlarge the application scope of the existing criteria for the heat transfer deterioration, the criteria of heat transfer deterioration was assessed by using the method of mechanism analysis and experimental data available in the literature. The obtained results indicated that the criteria...

On the basis of Ce (IV) and rhodamine B obvious light signal under the acid medium, the Ce(IV)-rhaodamine B-H2SO4 hemiluminescence system was established. In this paper, the ciprofloxacin hydrodchloride under the concentration of less than 1.0 ×10 -5 g/mL was explored, and a new determination of ciprofloxacin...

Along with the social civilization progress and the development of advanced science and technology, automatic vending machines are widely used in bus station, shopping malls, hospitals, communities, schools and other public places, which brings great convenience to people's travel and life, such as all...

At the beginning of the 21st century, the trend of provincial industrial transfer became more evident. The transfer of industry will have a degree of impact on the economy and environment of the transfer-in-land and transfer-out-land. This paper uses the data of 10 polluting industries and 30 provinces...

In this paper, By the use of a new fixed point theorem and the nonlocal BVP Green function. The existence of at least one positive solutions for the nonlocal fourth-order boundary value problem with the first order derivative

Based upon existing instruments have some disadvantages in both ways, one hand is simple structure, single function ,not work, difficult to cut, cannot cut completely or unsafe issues;on the other hand is complex structure, equipped with gear-down mechanism ,high manufacturing cost, bad price/ performance...

This paper analyzes the different demands for construction operating platforms in main structure construction and external decoration. A novel multilevel climbing operating platform applied in main structure construction and external decoration is presented. In addition, an external-wall climbing working...

When Calculating the parameter c of differential equations,traditional GM(1,1) model considers only the of 1-AGO,the oldest history data ,resulting loss of new information to some extent.This paper gives a new way to calculate the initial value.The new model firstly establishes the function of residual...

In order to solve the problem that conventional single IPC tester exists a universal machine a difficult test, a large space and other issues, the researchers designed a new fuse covers a variety of common tester, according to several types of fuses and general target test tester itself different actual...

The cloud manufacturing (CMfg) is a new manufacturing paradigm that can realize the added-value and on-demand use of manufacturing resource and ability in the form of manufacturing cloud service (CS). In order to realize the added-value of cloud service (CS) through cloud service composition (CSC) in...

In the process of smelting metal will produce a lot of environmental pollution by gas and waste residue,here for metallurgical raw materials and direct or indirect relationship between the environment for analysis.

In the production and quality management of enterprises, the management of equipment should also be attached great importance, at present, there are many advanced theories in the world.. This paper focuses on the total productive maintenance (TPM), in the TPM can quantify the overall equipment effectiveness...

This paper aims to implement the Arlequin method to simulate the bearing failure in composite bolted joints. Arlequin coupling elements are established by introducing Lagrange multipliers to couple the 3D coarse elements and 3D refined elements. Refined elements are meshed one element each ply the same...

The harmonic components is the additional waveform in the power grid, the harmonic loss can directly reflect the quality of the power grid, the harm of harmonic influences to the power grid and the safety of the equipment, in this paper it will be introduced a new type of harmonic suppression measures,...

Automation control and other consumer devices, industrial control and other fields, external communication interface many devices is still low speed serial port, but the low-speed serial inherent disadvantages: inability to concentrate, comprehensive, accurate and real-time monitoring data, which requires...

Introduces the dry process dusting system of converter process flow, equipment composition and function. Practice showed that the dry dust removal system stable running, high efficiency of dust collection, after purification of flue gas dust content is low, operation maintenance cost is low.

With the large-scale development of China’s wind power industry recently, wind power connected to grid has great impacts on power system network FM (frequency modulation). Researching on pricing mechanism of AGC ancillary service is essential for the stability and economy of ancillary services markets...

Oxidized coal is the coal that recovered to environment temperature when the heat-storing environment is destroyed during the self-heating process, which is quite common in the process of coal mining and utilization. The spontaneous combustibility of oxidized coal differs from that of raw coal, which...

The compound powders of VB2 with 25 wt% and 50 wt% Ni were mixed uniformly using a planetary ball miller, respectively. The discharge capacity of VB2/air battery with VB2-Ni as anode in KOH electrolyte was investigated at room temperature and ambient pressure. Meanwhile, the microstructure of VB2-Ni...

Oxygen enriched combustion technology is an important branch of greenhouse gas emission reduction technology, which has been developed rapidly in recent years. This paper briefly introduces the method of oxygen enriched combustion and the energy saving characteristics and the influence of the environment...

Biogas is deemed as a kind of superior and renewable resource. It is urgent for Supervisory Departments to adopt a real-time monitoring system which may process data promptly so as to reduce the potential danger and improve the level of automation. In this paper, an intelligent biogas digester monitoring...

In recent years, the Chinese iron and steel enterprise energy resources conservation technology progress and key generic technology development and application, including CDQ technology, coal moisture control technology, sintering waste heat recovery and utilization, blast furnace top gas residual pressure...

With the rapid development of urbanization, the contradiction between human activities and ecological environment is becoming more and more serious, and the urban park green space is unable to meet the demands of people for the urban environment. Based on the theory of sponge city, the ecological design...

That wind power provides automatic generation control (AGC) is an innovative solution to the lack of AGC ancillary services and the problem of abandoned wind. How to appropriately compensate the wind power generators who provide AGC ancillary services is a critical issue. Based on the day-ahead market...

In this paper, we examine the dynamic anti-plane behavior of interacting redial cracks emanating from the edges of two interfacial circular cavities in piezoelectric bimaterials under incident anti-plane shearing wave (SH-wave). Green’s functions for a semi-infinite piezoelectric medium with two circular...

This paper describes the overview of foreign and domestic garbage garbage power generation profile, and then were introduced three ways trash generation, namely landfill gas power generation, waste incineration power generation and waste gasification power, then this paper describes a comprehensive benefits...

The preparation and characterization of anti - blocked composite material consisting of MgSO4·7H2O and KAl(SO4)2·12H2O for thermal energy storage are reported in the present article. The preparation is performed by co-melting method by adding CaCO3 as the anti-blocking agent. The thermal properties of...

With the rapid development of social economy, Science and technology level are increasingly improving, especially accelerated pace of life, People demand for fireproof, anti-theft and anti-gas equipment is greatly increased, and for theft, fire and other accident monitoring and alarm system requirements...