Advances in Engineering Research

In the Multi-user Generalized Spatial Modulation (MU-GSM) System, as channel gain matrix isn’t in full rank, conventional linear precoding algorithms can’t be directly applied in this system. Given this, a method called Multi-user Generalized Spatial Modulation Partial Linear Precoding (MU-GSM-PLP) is...

In the frozen area, the freeze-thaw cycle may lead to the separation of the concrete spray and the slope in the spray anchor structure, resulting in failure of the spray anchor structure.In this paper, the gravity of the spray layer itself is decomposed by the force equivalence principle and the Saint-Venant...

Three kinds pit array on the surface of cylinder liner were prepared by using laser device, the diameter were 250 m, 350 m and 400 m respectively. Then, the textured surface was nitriding treated by using nitriding salt bath device. The friction coefficient of the piston ring and the three kinds of surface...

The hercynite synthesized at 1600 in protection atmosphere was thermogravimetrically analyzed. The results show that the change of oxygen partial pressure during sintering transforms some Fe2+ in the hercynite crystal structure into Fe3+ but the hercynite structure remained. Based on the modal for hercynite...

In order to meet the needs of the development of automotive lightweight,a lot of advanced high strength steels are developed.The first generation of advanced high strength steel is very low in the strength-elongation product, lightweight and security.The cost of the second generation steel is high and...

According to the practical condition of 3401 fully mechanized caving face in Dayang coal mine, the relationship between strata behaviors, mining technology and stope gas emission are analyzed through real-time monitoring of the support working resistance, advance abutment pressure and gas concentration...

Many problems in radar signal processing involve radio frequency (RF) signals of very high bandwidth. This presents a serious challenge to systems that might attempt to sample these signals by the Shannon/Nyquist sampling theorem. However, the information level of the signal is often far lower than the...

This paper discusses the nonlinear dynamics of Shen-Larter calcium oscillation model with the center manifold theorem and bifurcation theory. A numerical approach is provided to discuss the variation in classification and stability of equilibria with parameter value. It is shown that the critical values...

By integrating diagenesis and sequence stratigraphy, the effect of sedimentary-diagenetic reformation on reservoir quality and distribution was investigated with in a sequence stratigraphic framework. Based on the petrological characteristics, sedimentary microfacies and logs analysis, 2 third-order...

Inductively coupled plasma optical emission spectrometric approach(ICP-OES) is used to determine the mercury content in pyrotechnics used for fireworks and firecrackers. Element of mercury is commonly found as impurity in chemical materials used for pyrotechnics in fireworks and firecrackers. Statistical...

The stretching process is a complex plastic deformation process, the deformation zone is relatively large, metal flow, in the process of drawing prone to flange wrinkling and force transferring area of tensile deformation to scrap parts. Therefore, it is necessary to analyze the wrinkle, the root cause...

In order to solve the digital home media sharing problems between devices and do some research on UPnP and UPnP AV protocol architecture and then design and implement media sharing system based on embedded intelligent terminal. For smart phones, portable tablet characteristics to achieve a single control...

The nonlinear systems with time delay network control is discussed in this paper, transmission delays and packet dropouts for networked control system with random time delay is analyzed. In this paper, online delay estimation method to obtain the delay value, the delay value is an input parameter of...

Using recoverable anchor cable is a good way to resolve problems about underground space occupation and waste of money . So the recoverable anchor cable applied in engineering has long and meaningful significance .this treatise uses the resistance to plucking of anchor cable in the certain unit dismantling...

To investigate the influence of different plant covering on dissolved organic matter (DOM) in forest soils, the DOM characteristics of soil sample in P. massoniana plantation forest and mixed conifer-broadleaf forest of P. massoniana and C. carlesii were researched by using chemical and spectroscopic...

The loads on the arch dam and the materials physical properties of the dam and the bedrock are uncertain, and can be described with random variable. Due to the huge volume, the complex structure of the dam and excessive random variable, the static analysis of the dam is difficult. The dam is a higher...

Aiming at the unbalanced weight problem of 25m rail in the railway transportation, this paper firstly uses the principle of moment balance and bending deformation principle to make theoretical analysis, and then establishes the finite element model of 25m rail for simulation, and get the weight that...

A general differential equation of matrix with variable coefficient is derived for analysis of stability of the various bars with continuously varying cross section and different constraints at ends, which beneficial for engineering design.

Road scene understanding plays a key role in autonomous driving for intelligent vehicle. For the problem making semantic labeling with equivalent priority results in confliction between huge amounts of data and limited computation resource, this paper proposes a novel framework that efficiently fuses...

In the paper, an improved plan is proposed based on AES encryption algorithm. Complex mix-column operation in the AES implementation process is simplified by the improved plan, and an anti-power attack technology is further proposed on the basis of implementing the improved plan. The technology is based...

The image has many features, among which the edge is one of the most basic one. The purpose of edge detection is to obtain accurate edge positioning, which plays a vital role in computer vision and image analysis. Great detection of the image can also effectively suppress the generation of noise. There...

Cold water paddy field is one of the main factors to agricultural production and crop high yield. This paper proposes a suitability evaluation index framework of cold water paddy field for rice planting with site conditions, soil physical and chemical properties, soil nutrient status, social and economic...

Traditional internet data center is shifted to cloud computing data center with rapid development of mobile Internet and cloud computing currently. Cloud computing network burden is aggravated as a result. More optimal cloud computing network architecture is required for replacing traditional cloud computing...

To overcome the low efficiency of Least Squares Twin Support Vector Machine (LSTSVM) in classifying, a new method called Sample Reduction LSTSVM (SR-LSTSVM) is proposed. The method greatly reduces the training samples and so improves the speed of LSTSVM, while the ability of LSTSVM to classify is unaffected....

With the rapid and bursting development of pattern recognition technique and power system theory, the combination of the two is urgently needed. We argue that a filter bank that is designed from perceptual evidence is not always guaranteed to be the best filter bank in a statistical modeling framework...

Considering the fact that copper (II) (Cu2+) act as a dietary need but toxic metal ions, its detection and quantification is very much important for human healthy diet and environmental risk assessment. Herein, we introduced a sensitive fluorescence sensor for the detection of Cu2+ based on ZnCdSe/ZnS...

The fault diagnosis of complex electric power systems in marine is very complex and hard, in order to prohibit or further reduce the misoperation after the faults occurring of complex electric power system, the model based on weighted degree of grey incidence of optimized entropy and fault diagnosis...

The Ship's Routing has been widely used in many coastal waters of China. It plays an important role in regulating the traffic flow of ships, guaranteeing the safety of ships and improving the traffic efficiency. According to the standard of international Ship's Routing, combined with the examples of...

Poly (ether ether ketone) was pretreated by wet chemistry and different surface morphology was obtained. In swelling treatment, with the increase of sulfuric acid concentration, the holes on surface changed from isolated structure to interpenetrated structure, the number and density of the holes increased,...

Semi-supervised Clustering with constraints is an active area of machine learning and data mining research.. Shental used the Expectation Maximization (EM) procedure to handle semi-supervised Gaussian Mixture Models (GMM) estimation, in which positive and negative constraints are incorporated with to...

As different friction coefficients, extrusion speeds and extrusion temperatures have an effect on equal channel angular extrusion process of Ti5553 alloy under non-isothermal condition, 3D model had been set up to simulate the high temperature deformation behavior and particle tracking method was given...

Coronary heart disease is a serious harm to human health and common disease in many cases, in Hainan, is also one of the common multiple fatal diseases. This paper analyzes the association rules of clinical diagnosis and treatment of coronary heart disease in patients with coronary heart disease, analyzes...

The influence of feedstock and pyrolysis temperature on biochar properties has been extensively studied. This study used scanning electron microscopy (SEM) and electron dispersive X-ray analysis (EDX) to observe surface morphology properties of the biochars produced from broiler litter (BL), saw dust...

In the automotive remanufacturing movement, the inspection of the corrosion defects on the engine cylinder cavity is a key and difficult problem. In this paper, the ultrasonic phased array is applied to detect the corrosions in this part, and a method for marking and positioning the corrosions from the...

Many concrete shear walls are always subjected to high gravitational loads and prone to brittle shear failure under the lateral seismic loading which probably leads to the collapse of the whole shear walls system. This paper aims to present a new method of using slit steel plates to retrofit reinforced...

The numerical simulation study for water conveyance of penstock laid on downstream surface of overfall dam on water security is of great significance. Static analysis of penstock laid on downstream surface of overfall dam is the foundation of design and construction, includes the calculation and analysis...

By using the usual mean-field approximation, the phase transition properties of a ferroelectric nanoparticle described by the transverse field Ising model have been studied. The exchange interactions and transverse fields at the surface are assumed to be different from those of the interactions parameters...

Case study shows that there is a defect in"2-4" model which will limits its application. The defect is the module of unsafe act is not classified. The classification method of unsafe act is proposed by means of feature and characteristics of unsafe act via analysis result of 201 cases of china coal mine...

The metal particles flow law of the turbine forging process is very hard got to know, due to the complex shape and large deformation of this process. For this situation, a 3D finite element mold was build for this forging process with DEFORM-3D. The results shows that the metal particle flow law in three...

Under the background of big data, information technology is not only the object of audit work, but also the important tool of it. According to the principle and influence of on-line audit and characteristics of audit early warning technology, firstly, we introduce the necessity of on-line audit in big...

With more and more environmental problems, renewable energy begins to play an increasingly large proportion. High-voltage direct current technology based on voltage source converter (VSC-HVDC) enables smooth access to renewable energy. Traditional DC grids system is generally radial connections, but...

Due to the influence of global warming and environmental change, the meteorological and hydrological elements of the Dagu River Basin have also undergone a series of response changes, which have led to the change of the spatial and temporal changes of water resources. The natural ecological environment...

Livestock farming plays a vital role in ensuring food security and sustainable agriculture. However, feed availability remains a significant challenge, particularly in regions where conventional feed sources are scarce. In this context, banana stems have emerged as a potential alternative feed resource...

The idea of big data processing is widely accepted nowadays, which makes it critical for IaaS to support network infrastructures in large scale. This paper presents a novel network model based on scale free network, which explored the influence to scale free property with a maximum degree constraint,...

Abdominal aortic aneurysm (AAA) is a local enlargement of the abdominal aortic. It can bring 90% mortality rate when the aneurysm expands gradually until rupture. Clinically, the stent interventional procedure is an effective means of treating the disease, which requires clinicians clearly understand...

Inductively coupled plasma optical emission spectrometric approach(ICP-OES) is used to determine the chromium content in pyrotechnics used for fireworks and firecrackers. Element of chromium is commonly found as impurity in chemical materials used for pyrotechnics in fireworks and firecrackers. Statistical...

Vertical search engine research, more and more .subject-oriented vertical search has become one of the hotspots. This paper presents an ontology judgment theme relevance judgments algorithm, combined with Semantic Web technology with traditional information retrieval technology, and referenced by user’s...

A large number of coal-fired flue gas is the culprit that caused by air pollution and acid rain. Based on this reason, lime/limestone-gypsum wet flue gas desulfurization(FGD) process as the main desulfurization technology are used by most countries to control emissions of SO2,at the same time generating...

A 10 kV High Temperature Superconducting power substation with a cooling system was developed and has been put into operation in power distribution system for more than three years. The working conditions, heat resource and the distribution character of the four apparatuses working at the 10 kV/630 kVA...

This paper discusses the development problems of civil military integration equipment procurement and analyzes the necessity and the main focal point of civil military integration equipment procurement. The equipment procurement institutional mechanism is studied according to the development requirements...

Thermoelectric coolers (TEC) work on the principle of Peltier effect and are widely used in semiconductor industry to cool the components placed inside packages. The present work examines the effect of coefficient of thermal expansion (CTE) on the strength of solder joints of TEC. Due to difference in...

This paper established a multi-residue detection method of amides, neonicotinoids, triazoles, heterocyclic, and other pesticides in fruits and vegetables samples by liquid chromatography - tandem mass spectrometry. Using QuEChERS as sample pretreatment method, then extracted by acetonitrile, cleaned...

As part of a study on flight safety, this article introduces the profile of the Chinese civil aircraft hard landing primarily. And then, discusses the special circumstance of the hard landing through an analysis of some flight incident, which needs to pay special attention. The data in the flight data...

With the rapid development of Internet of Things technologies, smart city public information platform is collecting more and more city data. Make full use of these data, to analyze the pulsation rule of city development, is very important for solving the existing problems in cities. Relying on the Sino-Singapore...

Combined with the scanning electron microscopy (sem), mercury injection test and other microscopic experiment technology, technology of high-resolution 3D reservoir characterization based on the CT imaging was used to sduty the microscopic pore structure of tight oil reservoir in Fengnan Area, sourtheast...

This paper systematically investigates the development history and simulation analysis of three-dimensional wireless energy transmission technology. Building upon previous research achievements in electromagnetic coupling mechanisms and spatial energy distribution optimization, this study proposes innovative...

Domestic air conditioners generally use Freon as the refrigerant, which results in serious damages to ozone layer and exacerbates greenhouse effect badly, using water vapor as the refrigerant can avoid the problems above, but there exist series of technical problems in domestic air conditioners using...

Low permeability reservoir often have a variety of scales, distribution of complex natural fractures, using hydraulic fracturing which would create some large scale artificial fracture, in order to abstain more accurately prediction and judge oil production, the research on the mathematical model of...

Biological enzyme is a new type of soil reinforcement material, it is based on biological enzymes curing agent to achieve. As a biological enzyme reinforcement material, its greatest advantage is no pollution to the environment, but also to ensure good mechanical and road performance. In order to study...

The stress and strain of dam structure not only are the index of dam structure rigidity, but also are the basis of identifying whether the dam structural damage occur. Static analysis of dam is the foundation of design and construction of dam, includes the calculation and analysis of stress and strain...

Under background of rapid development of economic globalization and network information technology, rapid acquisition, effective processing and efficient use of earth observation data becomes the common requirements all over the world. Facing the challenges of massive geospatial information flow gathered...

Vibrating wire gages have earned their well-deserved acceptance on the basis of long term stability. But it is susceptible to external electro-magnetic noise. Anti-interference ability is the main study of various detection methods. Traditionally, time-domain approaches have been used to determine the...

The cross traffic intensity of the optical burst switching network is a key parameter for the edge node operations. This paper provides an estimate model for edge nodes to infer the cross traffic on the control plane of the bottleneck core node. A normal M/D/1 and a special M/G/1 queuing model are applied...

In order to meet actual situations for fault recovery of distribution network with micro grid, a strategy that micro grid runs firstly with important loads in islanding mode is studied. Generating islanding, the dynamic changes of the various DGs and loads in non-fault zone should be considered, and...

In this paper, the polytetrafluoroethylene tank high pressure digestion method was used for the determination of trace elements of Allium fistulosum L.by ICP-MS. Welsh onion cultivars ‘Zhangqiu’ were selected as the experimental materials. The influence of different nitrogen lever on the content of trace...

This paper presents a temperature/supply stable and resistorless voltage reference for high-precision portable electronic products. the reference obtains a good temperature coefficient over a wide temperature range through high-order curvature compensation. In order to reduce the temperature nonlinearity,...

It is necessary to research the temperature field because corrugated steel web PC combined box girder is made from different material in the roof, floor and web, and temperature distribution in the sunshine is also different. This paper relies on a flyover as the actual engineering background, combing...

In substation temperature monitoring system. For general detection system, when the temperature has reached a dangerous temperature alarm will occur, but in this case the situation is very dangerous. Not only affect the power supply, is more likely to life and property losses,. So before reaching dangerous...

The correlation between the number of landslides and collapses and the rainfall in Longsheng county was analyzed. It was found that there were 2 inflection points in the correlation graph between the quantity of geological disasters and the rainfall. The rainfalls corresponding to the inflection points...

To solve the non-uniform illumination problem of digital images, an enhancement algorithm based on segmenting non-uniform illumination image into two sub images and filtering separately is proposed. The method how to segment the non-uniform illumination image into two sub images and fix on the cut-off...

This paper use the advanced experience of Japan in the area of disaster prevention green space planning and construction and, look at the status, gaps and challenges of China’s construction and planning of Green Infrastructure, present the new thinking direction about the construction of disaster prevention...

Data mining of association rules provides the technology for discovering the interesting association or correlation from mass of data. Apriori algorithm can find all the frequent items from transactional databases, and eliminate non-frequent items. But, the Apriori algorithm for data mining of association...

The Deep penetration perforation water-jet technology is an effective method of the potential remaining oil exploration. Before the deep penetration perforation of reservoir it needs to open a window on the casing pipe. But the windows easily lead to decrease of casing pipe strength, which cause casing...

An original method is presented in this paper, which attempts to make use of the kalman filtering algorithm and maintain accuracy in position, attitude and velocity estimation for a fast moving projectile, the velocity and the pose (position and attitude) could also be obtained, then the simulation are...

With the rapid development of information technology, the production and management of the equipment towards to the direction based on digital, network and intelligent, which promote the revolution through the design instrumentalities, production process and testing technology. Nowadays, a new generation...

Based on the theory of time series analysis for the definition of FARIMA model, we generate time seriesin accordance with the FARIMA model, and measure its Hurst exponent and fractal order by using R/S analysis method. The experimental results show that the Hurst exponent used to generate the series...

Open relation extraction is one of the most promising relation extractioins.However,the precision and recall of the existing methods are far from satisfication especially for extraction from chinese text.In this paper,we propose a method based on dependency parsing, and develope a new system called C-Reverb....

Land resource lies in a significant position in China due to its largest population in the world. Academics in China have been studying on the topic of efficient utilization of land for gradually realizing China's economic transition without breaking the 1.8 billion mu red line of plough. A series of...

Pressure pipeline's length to diameter ratio is very big, easy to instability, stress situation more complex than the pressure vesse. The numerical simulation study for pressure pipeline on water security is of great significance. Static analysis of pressure pipeline is the foundation of design and construction...

Nowadays the society is full of all kinds of information. With the rapid development of science and technology, more and more people come to realize the value of information. Much information hide in the sea of data, there are so much data around us. So data mining technology is applied widely. This...

The effect of nitrogen on growth and nitrogen metabolism of Allium fistulosum L. was investigated to clarify the role of N in affecting the quality, and provide a theoretical basis for the optimization fertilization technique. Three nitrogen levels were tested in the experiment, namely total nitrogen,...

Based on the fact that the weather bureau currently does not provide solar irradiance forecast data, which is a key parameter to predict energy where photovoltaic (PV) is generated, a practical and indirect solar irradiance prediction model that is based on the RBF neural network and input by several...

Aiming at the common asphalt pavement structure combination, large general finite element software is used to build the three-dimensional model based on the multi-layer elastic system theory. The pavement structure vertical displacement and stress are analyzed entirely under the even speed moving load....

The application of energy-saving materials in construction should maximize the conservation of resources, minimize the impact of the environment, health and comfort oriented, to achieve "people, nature, construction" of the three harmonious unity of the building. In this paper, the application and development...

objective: to explore the relationship between air pollution and cerebral vascular diseases contracted among the elderly in towns and villages. Methods: 513 cases of the elderly that contract the cerebral vascular diseases visiting the surrounding township health center of Jilin City during the one year’s...

Electron beam rapid prototyping has the advantages of high efficiency, various processing materials, non-pollution and flexible control, and it is the main trend of mental materials rapid prototyping. However, as electron beam rapid prototyping technology starts lately and develops poorly, some problems,...

this paper, Pishan county sewage treatment and the desert greening have been studied.We have analyzed the advantages and disadvantages of the wetland mechanism and its purification in the sewage treatment in Pishan county as the test results of reused sewage for greening the desert.It has proved that...

The PMVS algorithm due to lacking of geometric constraint during expanding spare points to dense points cloud, resulting in error vertices which are generated from Poisson surface reconstruction. In This paper we consider facets around the expanding one at the same time, then detect the outlier vertices...

The normal operation of power equipment is directly related to the normal life of people in the relevant areas and the normal operation of the enterprise. Regardless of the quality factor of equipment, the most important factor affecting the normal operation of the equipment is the working temperature...

To further improve the performance of CMA blind equalization, an improved algorithm with variable momentum controlled by equalizer weights energy was proposed. The momentum gradient algorithm can improve the convergence rate effectively. However the additional gradient noise would produce by momentum,...

By integrating the ergodicity of chaos searching and the high efficiency of quantum computation into immune optimization, a novel chaos quantum immune algorithm for Generation Expansion Planning computation is presented. In this algorithm, antibodies in colonies are coded by quantum bits and updated...

Based on the analysis of UAV Mission requirements and tactical characteristics, this paper attempts to establish a Route Planning model which includes comprehensive threats model, performance constraints model and mission effectiveness model. A dual population genetic ant colony algorithm is designed,...

Design and development of air intake is one of the most crucial requirements of any air breathing propulsion system. The performance of the intake ultimately decides the performance of the propulsion system and the aircraft as a whole. Intake design affects both internal and external aerodynamic of the...

This paper presents an analysis aimed to evaluate the noise of micro-CHP systems. Based on the field test of insertion loss, the spectrum characteristics of CHP before and after the heat exchanger were analyzed. Finally the main source of noise is estimated, and the influence of speed and heat exchanger...

In order to solve some nonstandard and imprecise problems of non-formal methods, the formalization method based on strict mathematical is put forward software architecture of formalization not only can clearly describe the software architecture style, and makes design of architecture easy to understand...

In order to improve the accuracy of groundwater detection, the forward problem of NMR response in three-dimensional is discussed in this paper. The three-dimensional magnetic field equations and boundary conditions in frequency domain with the loop source are derived by Maxwell's equations and then the...

Carboxyl-functionallized graphene oxide and polyaniline composites (FGO/PANI) were fabricated by in-situ polymerization method. The microstructure, morphology and electrochemical performance were characterized. Graphene oxide/polyaniline composites (GO/PANI) are short rod-like and agglomerate severely....

Time performance and precision became crucial factors in question-answer applications. This research compares two ontology-based models of the simple question-answer (QA) application. The domain of the application is movie information. The first model used lightweight natural language processing (NLP)...

In order to meet CCAR/FAR/CS 25.1309 airworthiness requirements, commercial airplane safety design and management platform has been established, combined with the COMAC new plane development procedures. In areas of development processes management, life cycle configuration management and security quantitative...

To investigate the dynamic mechanism of maintaining the deep tidal channel of Lianzhou Bay in nature status, a numerical model of Lianzhou Bay was established based on ECOMSED (Estuarine and Coastal Ocean Model).The measured Salinity distribution shows that the freshwater has small effect on the deep...