Advances in Engineering Research

Aiming at 5-dof parallel tripod head, the integrated parameter modeling of parallel mechanism with less degree of freedom is researched in this paper. Firstly, the kinematics parameters analysis of each component of 5-dof parallel mechanism is carried out and kinematics model of 5-dof mechanism is established,...

The longitudinal location precision of the missile borne electronic reconnaissance equipment is not enough. In order to strike the target more accurately, the method of missile-satellite cooperative passive location is proposed, based on the study of the concept of cooperative location, the hierarchy...

Compression tests of five groups of concrete specimens with different plastic particles (0%, 5%, 10%, 30% and 45% aggregate volume ratio) are carried out. The results show that, the incorporation of plastic particles has significant influence on the mechanical properties of concrete. With the increase...

The combination of carbon footprint and urban transportation planning is significantly meaningful to the construction of urban low-carbon transportation. This dissertation studies the emission of carbon dioxide and air pollutant such as carbon monoxide, hydrocarbon, nitrogen oxide during the process...

In foggy conditions, acquired images have low contrast ratio and low scene visibility problems. The traditional defogging algorithm has high time complexity and low speed characteristics and can not be applied in real-time image processing. Thus, a single image restoration method based on mean filter...

Reserve ancillary service is necessary to maintain the power system operation reliability. It is trended now to be procured under the deregulated environment in order to improve the enthusiasm of reserve ancillary service providers. Therefore, a reasonable reserve market mechanism in which all the necessary...

Nowadays, more and more users share news and information in micro-blogging communities such as Twitter, Tumblr or Plurk. With the increasing number of registered users in this kind of sites, finding relevant and reliable sources of information becomes essential. For recommending sufficient information...

With the rapid expansion of biomedical literatures, it provides an opportunity for mining biomedical knowledge from the huge amount of biomedical text. Entity recognition is a challenging task of biomedical text mining. In this work, we described a method to identify biomedical entity based on Conditional...

Gear strength analysis is important to gear drive design, and its calculating accuracy is mainly decided by gear model. Several factors influencing the spur gear model building accuracy by finite element method (FEM) are presented, including geometric model and boundary, loading position and load types....

In recent years, with the rapid development of the sharing economy, sharing bicycles as a new form of sharing economy, has solved the pain point "the last mile" of the distribution pattern of urban public transit and subway, which plays an increasingly important role in the efficient urban road traffic...

USV's hull form optimization is a multi-objective optimization problem, which involves coordination and unification of performance in all aspects. To determine the sensitivity to overall optimization including rapidity, maneuverability, seakeeping and overturning of the USV was an important aspect in...

This paper analyzes the principle and test method of the grounding resistance. According to the analysis and calculation of the lightning accidents, prove the relationship between counter attack lighting and the grounding resistance. We also describe the basic principle of grounding resistance test....

In recent years, environmental concerns call for the reduced of cutting fluids in metal machining. The green manufacturing techniques are investigated to achieve the objective. In this paper, for the aim of green cutting, the dry electrostatic cooling was applied instead of cutting fluid. The effects...

This paper is about the static error measuring strategy of five-axis CNC machine tool basing on the touch-trigger probe, which is the mainly measuring tool to detect the static error of the five-axis machine tool of RTTTR and RRTTT topological structure. According to kinematic chain of the five-axis...

The sewage sludge and banana peel are typical solid wastes. In this paper, sewage sludge and banana peel blends were used as raw materials for the preparation of mixed waste biological carbon. Adsorption performance of Cu2+ and Pb2+ at different raw material ratios were investigated. The results showed...

A novel method was used in the study of magnetosensitivity in model insects. The equipment was self-made in our laboratory to detect the magnetic choice behavior of insects. The device includes a perspex frame, a coil system, an illumination system and a choice apparatus. The perspex frame is used to...

This work reports a new method of producing nanostructure arrays on monocrystal Si wafers. During the course of electrochemical anodic etching in HF solution, nanostructure arrays formed on N-type Si wafers under laser illumination ( =650nm). A field emitting scanning electronic microscope (FESEM) was...

Due to the versatile functions and the potential ability of monolithic integration, semiconductor ring laser (SRL) has received increasing attention recently in the application of all-optical logic unit. In this paper, InP/AlGaInAs multiple quantum well (MQW) ring lasers with different cavity structures...

Large scale wireless sensor networks (LSWSNs) need to provide complete solutions for users by integrating services and data into information service systems, and are more focused on their own functions. Services are playing more and more important role in LSWSNs. This paper presented an approach, called...

The basic law and method of Fourier transformation and Hilbert Huang transformation is introduced. Taking the obtained dynamic EEG data under +Gz acceleration as an example, EEG change feature under +Gz acceleration is analyzed ,and Fourier transformation spectrum graph and Hilbert Huang transformation...

An experimental investigation on vortex-induced vibration of plane gate with submerged flow is carried out by a combination of 3D-PIV technique and multi-channel vibrating data acquisition system. In order to explore the mechanism of gate vibration, the experiment is to synchronously test the distribution...

Highway construction obviously led to the social and economic benefits. This article uses the basis data of economic and social statistics in 2005-2014 of Guangdong Province, combines the qualitative and quantitative methods, Index system and analyze the impact of the economic and social benefits of...

The distribution network is complicated, it often causes many faults when happing natural disasters. Relying on the repair dispatching experience, it is difficult to develop the most effective repair scheme. In view of the feature that the rush repair faults after the disaster is different from the general....

Under blast load, the progressive collapse performance of reinforced concrete structures is very complex. This article gives a more applicative and efficient RC frame structure model by ANSYS/LS-DYNA, and studies the effects of concrete strength and longitudinal reinforcement ratio to progressive collapse...

In this paper, the Markov model is built to explore how social information spreads and works, especially through the networks. the note distance calculation model based on Cluster analysis is proposed to determine the factors affecting public interest and opinions. We divide people in a region into three...

A low-carbon cement (LCC) consists of 10% of cement clinker and 90% of industrial wastes was prepared, properties of the LCC such as setting time, soundness, consistency, as well as the compressive and flexural strength were examined. It is shown that early strength of the cement was slightly lower,...

The database of military equipment data engineering is the important basis of making scientific decision for military equipment assessment, and it has the significance for developing the military equipment. The paper designed the database structure of military equipment data engineering, including the...

The paper analyses the existing problems of the flameproof diesel vehicle and states battery rubber-tired vehicle will be a development trend in the future. The research status and development trend of the key technologies of battery rubber-tired vehicle are illustrated, and battery vehicle will become...

A distribution network reconfiguration model with wind power generators is proposed, and an improved genetic algorithm is applied to minimize active power loss. Forward and backward sweep approach is adopted to calculate the power flow. In addition, the strategy of searching random spanning trees is...

The waterscape has become one of the important determinants of City waterscape design is successful, and the city or city waterscape environment is closely related to the charm. Each city river or waterfront region has its own unique function requirement and humanistic characteristics, which determines...

Under bad weather, the outdoor computer vision system captures the image quality degradation, which will bring great inconvenience to image processing, has a serious impact on aspects of daily life and production. In this paper, From the point of image enhancement , first, the image is converted from...

A composite fruit peel (HFP) coagulant was prepared from banana peel and orange peel, for humic acid simulated water , the effect of dosage and pH on the turbidity and color removal rates were investigated. The results showed that the HFP has 97.14% turbidity removal and 88.7% of color removal under...

Combined with the actual set of concrete measures are for preventing the transformer screens dendritic discharge fault. Aiming at the 220kV main transformer screens dendritic discharge fault, introduce the basic process of screens dendritic discharge failure occurs, proof insulation damp and gas is the...

The automatic interpretation of SAR images is often extremely difficult due to speckle, a signal dependent noise, which is inherent of all active coherent imaging systems. Thus, despeckling has become a crucially important issue in SAR image processing. Wavelet theory provides a powerful tool for detecting...

Constant-on time voltage feedback controlled Buck converter is one kind of typical nonlinear system. It produces unstable behavior in the running of the system. With the change of output electric capacity ESR, bifurcation and chaos behaviors are shown in the system. The mechanism that produced the phenomenon...

Cheongsam is a typical traditional costume in China, and the handmade craftsmanship has also become a national intangible cultural heritage, whose inheritance and development are an important task facing we face today. Based on the induction and analysis on the main part of the characteristics of Cheongsam...

This paper discusses the concept and characteristics of embedded system, introducing the components of embedded system in detail, and introducing the processor and operating system of embedded system. This paper had a vision of future which is developing trend of embened systems through summarizing the...

In this paper, we present a multi-objective Web Services selection algorithm, which aims to achieve the dynamic web service composition. Firstly, we analyze multi-objective optimization problems with user constraints. Furthermore, we optimize the different QoS parameters of the workflow. And experimental...

An amphiphilic RAFT agent was synthesized, which could polymerize with monomers as Reversible Addition-Fragmentation Chain Transfer Polymerization route. The resulting RAFT agents were characterized by FT-IR and 1H NMR. The dispersing ability of synthesized RAFT agent was evaluated. Organic phthalocyanine...

Reverse engineering is a design process going from a physical or clay model to a digital model. The first step in reverse engineering is part digitization, and its precision and efficiency all will influence the reconstructed surface qualify. In this paper a date fusion method for free-form surfaces...

Electric Power is the vital energy source in national product and people daily life so the importance of electric power production and transmission is beyond question. As the link between electric power production and transmission, electric power dispatching decides the effective and healthy operation...

With the development of digital blasting, research work of digital blasting vibration measurement in recent years has become a hotspot in the field of engineering blasting. Research progress in hazard remote monitoring technology and platform of domestic engineering vibration of blasting vibration were...

Supersulphated cement with 5%--10% of clinker, 15% of gypsum, 75-80% of slag was prepared, sulfate attack on mortars blended with ordinary portland cement and supersulphated cement was examined according to ASTM C1012 and the Chinese nation standard GB2420. It is shown that supersulphated cement exhibits...

The trust level between the owners and contractors is the key factor for project succeed in water conservancy projects. In order to study the level of trust between the owner and the contractor, this paper analysis the indicators of inter-organizational trust level and designs questionnaires according...

The paper mainly introduces the definition and characteristic numbers of Poisson process and also gives two simulation methods and operation steps on Poisson process. In this paper, we mainly introduce the idea of generating the interval. We also give an example and use Matlab to simulate the process....

Effect of pushing against soil of static driven Piles involve a series of problem, such as the large deformation and material non-linearity, etc. the research on its mechanism of action is still in the stage of exploration at present. In this paper, it attempts to analyze the problem of characteristic...

Tower crane, transporting components vertically and horizontally, is the most expensive machine in construction site. In order to reduce cost and advance construction schedule, tower crane should be well located. Based on matlab platform, this paper generates an optimizing algorithm to selection optimal...

The "livable village", "beautiful country" and "land ownership reform" and a series of related construction of country government work report, provide the policy basis for the local landscape protection, unique quality and value more and vernacular landscape more people pay attention to. The majority...

The STL(Stereo Lithography) format is one of the data interface format is commonly used in modern manufacturing field. Using parallel-hashing structure as the auxiliary data structure, by adjusting the mapping and reference relationship between each date lists, this paper put forward the parallel topological...

In light of urgent need of approval of ballast water management system against the new G8 guidelines, organism regrowth within treated ballast water should be assessed. However, it’s the first time for mandatory demands on the evaluation of organism regrowth in ballast water. For the existances of DNA...

In order to solve the problem that the fault samples are too few in the fault diagnosis of a certain type of diesel engine, a diagnostic method based on the simulation of fault symptoms was proposed. First of all, used AVL BOOST software to simulate the working process of diesel engine, extracted the...

Currently, most countries and regions often use chemical method to increase oil production of oil well in the middle and later stages. Although some results have been obtained in field application, the disadvantages of this method are obvious—the long-term use of polymer chemicals, which not only directly...

In order to improve the fault detection and diagnosis infrared effect, describes the fault type infrared detection equipment; analysis of the factors affecting the accuracy of the temperature measurement; analysis approach proposed in addition to proper use, it also must be on a variety of factors that...

In recent years, the outbreak of natural disasters is becoming more and more frequent, which makes the damage to people's property and life getting worse and worse. Therefore, how to distribute emergency relief supplies after the disaster becomes very important. In this paper, taking the urgent needs...

This paper focus on the bifurcation behaviors of voltage regulated forward converter. Meanwhile it builds a mathematical model based on voltage closed-loop control system, and discusses load resistance that makes system produce bifurcation phenomena. The bifurcation mechanism indicates that with the...

We present a novel method of laser machining 3D curved surface by 5-axis CNC laser machining system pertaining to the manufacturing processes of laser marking, laser mold texturing and laser direct structuring (LDS). We begin by presenting the need of texture mapping technology which is used in 3D curved...

the relationship between loopholes of stress concentrated coefficients and stress consolidate coefficients were illustrated The relationship between impact value and loopholes sensitivity were found The relationship between crack forming energy and crack forming life was studied.

The main body model of the tracked vehicle and the crawler system were established by RecurDyn/Track LM and Pro/E , and the assembly was completed in the RecurDyn environment. Using multi-body dynamics software RecurDyn with specific surface parameters for dynamic simulation, to obtain and analyze the...

Aiming at the shortcomings of traditional fading channel forecasting algorithms, least square support vector machine(LS-SVM) is applied to predicting underground fading channel. In light of complicated and changeable underground environment, the measured data may be abnormal. Thus, an improved LS-SVM...

It is possible to track and monitor the multi-temporal marine pollution caused by large-scale reclamation engineering techniques by using remote-sensing techniques, which can overcome the spatial and temporal constraints of situ sampling. The concentration of chlorophyll-a is a widely used indicator...

The thermo-elastic contact characteristics of standard spur gears with the ANSYS software’s Indirect coupling analysis method and achieve the limit state function of contact strength of tooth surface with the response surface method. It also studies the probabilistic sensitivity of the limit state function...

In recent years, improving power quality has become an urgent need to protect the safe of power system, stable operation and meet user’s requirements. The existing power quality monitoring system, mainly to get the data through special acquisition equipment of power quality, it is not for real-time monitoring...

Dynamic spectrum access can effectively improve network frequency resource utilization in current wireless networks. However, for energy-efficient cognitive wireless access networks, traditional dynamic spectrum access technologies face new challenges. This paper proposes a new dynamic spectrum access...

As the economy develops, the scale of the supermarket is getting bigger and bigger. There is an increasing shift from convenience store to one-stop shop. So, how to find the goods you want rapidly, accurately and efficiently has become an urgent problem. To solve the problem, we have designed a kind...

Large displays are weak in providing sufficient access efficiency and input precision in gestural interaction. In particular, in multi-user situations when equal access efficiency and high precision are required, the weak of large displays becomes more obstructive. In order to address access efficiency...

The lack of well test interpretation techniques applicable to chemical flooding reservoirs has restricted the formation evaluation and project design in EOR (Enhanced Oil Recovery) production. In this study, a two-phase five-component well test model for polymer-surfactant flooding is proposed which...

Chinese city urbanization process of rapid and large-scale city construction opportunity, the historical and cultural city also ushered in a period of accelerated development of good. We feel in the new city also inevitably have some regrets and regret: city to large-scale development, economy, modernization,...

Based on the design of orthogonal cutting tests, study the processing and the analysis method of orthogonal test data, program the module for solving regression equation, research on the calculation of cutting force curve, drawing and display issues based on the cutting test data which is stored cutting...

Under the two-dimensional components of seismic action, the seismic response spectrum method was applied to irregular structures that were constructed in order to replicate the main powerhouse of a large thermal power plant with a frame-bent in the transverse direction and a frame-shear wall in the longitudinal...

Test arrangement problem is a kind of NP hard problems, which has been proved. It’s a combination of constraints, nonlinear, and fuzzy multi-objective optimization. The results can be found based on all kinds of known constraints, but it spends too much time. And the effect of the test is not certain,...

With the development and perfection of AIS system, AIS data with high timeliness, strong stability and wide coverage provide a strong data base for traffic flow statistical analysis. This paper use Java with full consideration of JVM performance, to achieve rapid AIS data decode, then put forward a new...

In recent years, with the increasing share of shipping volume in total international trade volume, the carbon emission of ships has increased year by year, and the carbon emission of ships has been paid more and more attention. This article is based on CO2 emissions, or tce, vessel operating efficiency...

In the current era the network technology is developed, the design and application of paperless examination system using the network technology has become a reality. This paper will introduce the paperless examination system design and application process in detail, help people to better master and use...

In order to obtain the motor current signal conveniently and solve the problem caused by the fundamental frequency fluctuation of the power network, a current harmonic detection system based on magnetic sensor is proposed in this paper. This system will simplify the measurement process, as it uses the...

In this paper, the explosion accident of a 220kV current transformer in a 220kV substation is studied. It uses method of scene investigation and test to analyses the accident based on the principle and characteristics of current transformer. Through the analysis, this paper holds that reducing in main...

Chongqing is a typical mountainous city with a lot of less developed mountainous townships which are important components in the process of pursuing the mission of sustainable development in China. It is appreciated that the investment on infrastructure projects in these less developed townships is the...

Low-density parity check (LDPC) codes which have many encouraging characteristics, such as the lower complexities of the hardware implementation, closing to Shannon limit and no patent barrier, have gradually regained the interests of researchers. We present performance simulations in allusion to QC-LDPC...

To solve the time-consuming problem and the low efficiency of the global exhaustive searching in the object tracking, this paper propose a new search strategy based on motion estimation and structural constraints. First, the motion vector of one object is calculated, associating with the location of...

Gear pump with simple structure, high cost performance, reliable in performance is widely used in engineering machinery, agricultural machinery and so on.With the rapid development of modern science technology and industry, higher request are put forward to gear pump gear transmission .Therefore, the...

In this paper, with advanced computer technology and distribution network planning theory, studied with GIS-based distribution network planning aided design system. This paper analyzes the problems of distribution network planning, proposed the use of FME technology planning data integration and appreciation...

Water quality assessments are essential for providing information to water resource management processes. The objective of this study was to investigate the internal correlation among water parameters, to analyze main water contamination and to identify the most polluted section along a seagoing river....

Design a new photovoltaic grid connection device based on Freescale MK60FN1M0 processor and Multi-mode wireless communication technology. In terms of Modbus protocol, MK60FN1M0 communicates with photovoltaic inverter, the device acquires measurement data such as: DC voltage, DC current, AC voltage, AC...

This paper presents a new method of injection of high voltage pulses (IHVP) during commutation in order to shorten current’s rising-edge time and reduce the torque ripple. A quantitative method for choosing the voltage magnitude and the pulse width is put forward with trapezoidal back EMF under square...

Viscous fingering phenomenon happens during CO2 flooding because of viscosity differences between CO2 and crude oil. It leads to premature breakthrough of displacement fluid and decrease of sweep efficiency. In this paper, a three dimensional Diffusion-Limited-Aggregation model based on pressure-oriented...

The traditional reliability models of CNC machine tools are based on the assumption that the machine after repair is as-good-as-new or as-bad-as-new. But it is not the precise model compared with the Engineering practice. This article focuses on the repair degree to the sub-system of CNC machine tools,...

Based on the AR4000-LIR type infrared laser rangefinder, the prototype of the 3-D laser-scanning-based machine vision system for robotic construction vehicles is developed and the software for scanning control, swing control and data sampling/processing is programmed. The experimental results show that...

Based on the Z source inverters operating characteristics studied, and has carried out harmonic analysis by simulation of its output voltage. Through the reasonable design of carrier frequency, filter design and triple frequency harmonic injection method to suppress the output voltage harmonic, the Z...

Modern city landscape environment construction, unified in respect history, respect for life and need more historical landscape connotation and contemporary science and technology civilization. In the modern city construction tide in the city, the historical memory may be transient, city and so become...

In LTE-A system, there are generally two types of frequency offset: fixed frequency offset and Doppler frequency offset. In the paper, firstly, the estimation of fixed frequency offset and Doppler frequency offset is introduced, then several improved estimation schemes is proposed. Secondly, with the...

Traditional recommendation methods usually focus on utilizing user’s features obtained from structured behavior information, which only contains coarse grained user interests. This paper presents a novel approach to introduce aspect-based sentiment analysis (or opinion mining) into recommender systems....

On December 14, 2013, Chang'e-3 set down on the moon, making China the third country in the world to set a soft landing with a lunar probe. It is a great honor for us Chinese, but also a great challenge for the project staff through the whole process. Of the characteristics of automatic navigation control,...

With the rapid development of computer technology, the extensive application of digital media technology in art design field, it changed from the most primitive hand-painted production to the modern high-tech computer software to achieve the best results. The role of digital media technology has spread...

Objective: Use the fuzzy neural network (FNN) model to diagnose four kinds of digestive tract diseases. Methods: 70 cases were randomly selected from 100 cases of gastrointestinal system diseases as training set, with 15 cases as a verification set and 15 cases as a test set. First, the FNN is trained,...

There is a clear boundary between primary and secondary devices in traditional substation. The intelligent demand of intelligent substation is analyzed. According to the design idea and method of intelligent substation, the integrated application scheme of the disconnecting circuit breaker, intelligent...

A robust optimization model of resource-constrained critical chain project scheduling problem is introduced. Stochastic programming method is used to describe the uncertainty of activity duration. Based on the traditional critical chain project scheduling mode, a genetic algorithm is introduced, and...

This paper introduces a chip waveform distortion model of satellite navigation signal in time domain that is adopted by ICAO, and then proposes a FPGA implementation method with which three categories of chip waveform distortion of navigation signal in time domain are modeled. A comparison is made between...

In recent years, Intrusion detection has been the focus of security research for Wireless Sensor Networks (WSN). Some approaches or mechanisms have been designed for WSN. But none of them has been widely applied. In this paper, a scheme based on sensor node clustering and statistical model for WSN is...

Real-time SCADA system bears, near real-time control of the business and management information services, high data reliability requirements, SCADA systems also need to be connected with higher-level automation systems, office MIS systems, and high network utilization, there is a many security risks....

An efficient extraction and purification technique based on ultrasonic microwave-assisted extraction (UMAE) method was established to obtain phenolics-enriched fraction from jackfruit by-products (JPEF). Optimisation of the extraction parameters for maximum extraction yield of JPEF was carried out using...

Aimed at the problem of product modeling under Mass Customization, concepts of the characteristic matrix and matrix row were proposed. The function-structure model based on product network nodes was established by the combination and identification of characteristic matrix under the function-structure...