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The campus information portal based on Liferay is the entry point of the entire digital campus. It integrates the functions of the identity authentication and the user interface. The system can be integrated in the campus, so that users can easily publish and share information. Provides the service with...

Along with the increasingly mature computer technology, various computer systems with complex structures and strong functions have been widely applied to such key safety fields as aerospace, communication & transportation, medical treatment & public health and nuclear power energy. In case of system...

An excellent Android application shall not only have perfect function, but also have good user experience. Actually, performance is an important factor influencing user experience. Memory leakage is a common performance problem in Android development, and DDMS with a good memory monitoring tool Heap...

Quality of software requirement is an important factor to safety of aviation equipment software. With the increase of software complexity, Artificial software requirement analysis is difficult to find requirement defect caused by multi state combination, multi fault concurrent, multi condition conflict...

By the way of build a new model to intuitively response the temperature changes in the refining furnace, using the results of the temperature changes to control the output of the current, and achieve the purpose of accurate control and not waste resources. Combining temperature prediction with this model,...

The water polluters of Liao river basin in Jinzhou is elected preliminarily basing on the basin of the key water polluters of Jinzhou city, combining with the principle of polluters screening and the computing method of equal standard pollution load, optimizing and assessing the indexes which involves...

The tracking and speed measurement of floatation froth is important for the control and optimization of floatation industry. A new tracking and speed measurement method based on features and spatial relationship is proposed in the paper. The salient bubble objects are extracted from frames, and they...

With the wide application of the autonomous ground vehicles (AGVs) in the military and civilian areas, the autonomy requirements such as autonomous self-awareness, self-planning and self-control are increasingly considered. The autonomy evaluation has been one of the key issues in the research of the...

After analyzing the superiority and the deficiency of K-means clustering algorithm, the author put forwards the IDS based on the 2-SVM, according to the research achievement on SVM in the field of IDS. The result shows that this algorithm can avoid the problem of decreasing detection rate by local optimum...

TV White Spaces (hereinafter referred to as the "TVWS") is the radio spectrum has not been used, is assigned to using in broadcast television. TVWS has the advantages of high transmission distance, strong penetrating ability, not easy to be absorbed by water, large amount of transmission unit data, etc.,...

The vector control of interior permanent magnet synchronous motor (IPMSM) needs detect the position of rotor. In this paper, the position sensor of IPMSM is rotating transformer and we designed the decoding circuit based on AU6802N1.At last, we measure the rotor position through the control system based...

At presently the most widely used algorithm is collaborative filtering in the Personalized Recommendation Systems for E-Commerce. Aiming at the problem that the recommendation is not accurate due to the data sparsity, a collaborative filtering algorithm based on user characteristics and item attributes...

In this paper, the author discussed the current popular the grid computation technique and the virtualization technology, analyzed and concluded characteristic of two technologies. Then, VNET has been proposed, which can add the virtual machine to the network efficiently. It can dynamically modify its...

This paper establishes a three-dimensional maritime search and rescue plan by integrating a differential equation model, a global optimal model and an area partition algorithm. Based on the data of flight data and the loss time of communication for MAS MH370, we establish a differential equation model...

In this work, the ground-based GPS data in the West of Taiwan Strait was used to remote sense atmospheric Precipitation Water Vapor (PWV) in Fujian, and dynamically analyzed the spatial pattern change characteristics of PWV, combined with meteorological data, in order to quantitatively analysis the relationship...

In recent years, infrared trigger cameras are widely employed in the fields of wildlife monitoring and protection as they can collect massive image data. It is of great realistic significance about how to conduct automatic processing of these image data and extract key information. This paper has a detailed...

Based on cloud computing architecture and future network service resource architecture using the OpenStack open source framework, design an Service Innovation Platform which can manage development tools and application programming interface in many aspect. Maximum collecting the dispersed, isolated service...

The detection of interface between water and oil is of great significance for the heavy oil exploitation. However, the existing detection techniques have some drawbacks, such as poor efficiency and low accuracy. A new interface detecting method based on the Heat Transfer Rate between oil and water is...

An interface detection method based on fusion boundary enhancement is proposed, and can be used to extract the oil water interface in the test tube accurately. Boundary extraction is carried out by using differential operators, morphological operations of image processing. The fusion of Sobel differential...

Named Data Networking is a future Internet architecture which enables content retrieve and access by its name. Different from the current network, Named Data Networking is more like a distributed network. Nevertheless, users do not know name of the content. In this paper, we present a Keyword-based NDN...

The research of CAPTCHA recognition can discover the security vulnerabilities of CAPTCHA in time. It has great significance in improving the CAPTCHA design method and promoting the design level of CAPTCHA. Text-based CAPTCHA recognition mostly uses the method of characters segmentation and recognition....

Image processing is widely used in many fields,in image enhancement processing,traditional image enhancement method,such as histogram equalization, wavelet coefficient enhancement,and so on.Although these methods achieved good image enhancement performance,however,noise is amplified during image enhancement...

Because of fast moving of VANETs node and dynamic topology structure, the traditional wireless self-organized routing protocol is difficult to be directly applied in VANETs. Therefore, the routing protocol of hybrid traffic information perception is proposed. Through the collection of real-time traffic...

Personalized recommendation systems can help people to find interesting things and they are widely used with the development of electronic commerce. Many recommendation systems employ the collaborative filtering technology, which has been proved to be one of the most successful techniques in recommender...

In the Internet environment, software gradually moves from closed, static and controllable status towards open, dynamic and unpredictable state. How to propose suitable software theory for such adaptive software has become the challenging issue facing the computer science and technology. Applicable formal...

The limestone Detection System is developed by Qt assisted by Qwt and Modbus protocol based on Linux platform. The system can detect activity of limestone and PH value in real-time. This article begins with a brief description of the background and the functional requirements of the system, given the...

With regard to the existing test case priority algorithm rarely focusing on the static covering condition of test case and other design information, as well as the testing person need to online collect relevant information about each statement in the procedure, and a higher dependence on code information,...

Aiming at characteristics of wisdom scenic, based on semantics Internet of things technology, we have realized a kind of scenic intelligent information service system which integrates various functions including scenic guide, environmental information perception, etc in one, designed system architecture...

This supermarket management system has realized the transmission and control of large goods, so as to facilitate the management and decision of sales, and reduce a big burden for supermarkets and supermarket managers. It also can help to improve the work efficiency of supermarket. Its requirements is...

Good development framework can improve quality of software development. This paper makes research based on the MVC software design model, after thorough analysis of the current mainstream of three technical framework, combining with their characteristics and advantages to construct SSI fusion framework...

In this paper, the vector control theory of PMSM is studied, and the double closed-loop control system of PMSM is designed. By analyzing the mathematical model of PMSM, vector control principle and control strategy based on vector control, the control strategy and realization method of this paper are...

This article proposes a tracking algorithm based on mean shift and particle filter according to the characteristics of moving vehicles. Firstly, the algorithms establish auto target motion model that the core is RGB color histogram. Secondly, using the Bhattacharyya distance measures similarity of particle...

This paper investigates the microstructure and friction-wear behaviour of Scapharca subcrenata in order to obtain useful information regarding the tribological properties of composite materials. The experimental results have showed that the relationship between the friction rate and surface roughness...

This paper investigated the microstructure and composition of Argopecten irradians through X-ray diffraction (XRD), field emission scanning electron microscope (FESEM) and energy spectrometer (EDS), and measured the hardness and tribological properties of Argopecten irradians using nanoindentation and...

As a solid state joining process, friction stir spot welding (FSSW) has a strong potential to be applied in the aerospace and automotive industries. Mechanical property of the FSSW joint takes important influence on connection performance. In the present paper, numerical simulation model of mechanical...

In order to study the mechanical performance analysis of double-layered high-strength stirrup confined concrete columns of different cross-section, using ABAQUS of finite element software for numerical simulation and experimentally comparison methods to analyze different stirrup characteristic value...

The present study reports that a modified coaxial electrospinning process, which was successfully carried out to control the diameters of shellac fibers. With a Triton-X100 in ethanol as sheath working solution and shellac ethanol solution as a core electrospinnable fluid, the coaxial electrospinning...

The virtual prototype of circular vibrating screen was Established, and the overall structure and working principle of the device were described in detail.The natural frequency of circular vibrating screen was obtained by using finite element analysis software ANSYS to modal analysis,which can provide...

Physical, chemical and mechanical properties of some abrasives such as diamond, CBN are described in this paper. The preparation and application of ultra-hard oilstones such as diamond and CBN are also discussed. They are widely applied in honing and promote great development of honing technology. However,...

A soft bulletproof layer is made by utilization of the newest domestic Ultra high molecular weight polyethylene fiber, and by composing float-assisting and puncture-proof functions, multifunctional float-assisting, bulletproof, puncture-proof composite clothes is developed, according to the current flaws...

Colored non-slip surface coating has an important role in the prevention of traffic accidents and obtains more and more attention and application. This paper based on chemical reaction principle of poly methyl methacrylate with a curing agent to produce a fast secondary crosslinking reaction coating...

It established APD(Air power drive) starting drive dynamics model. The APD system is put forwarded to improve the vehicle starting drive efficiency. We analyzes the APD working principle, adds a air power and researches for the basic simulation of control model with slip-rate based on PI control theory....

Aiming at the issues that the big intensity of labor, large number of workers, low product efficiency and the quality refractory in the fire-proof material production enterprise in casting sprue clay pipe production pipe molding process in subsequent processing. A system of cutting and stacking of casting...

In order to improve the accuracy of fault diagnosis, this paper puts forward a method of wavelet packet combining neural network fusion. By wavelet packet decomposition and reconstruction of normal and fault vibration signals of aero-engine rotor, the feature vector from the vibration signal can be extracted....

Epoxy/graphene nanoplatelets(EP/GNs) composite was prepared by ball milling(BM), using diglycidyl ether of bisphenol A(DGEBA)as matrix, Diethyltoluene diamine(DETDA) as curing agent, GNs as thermal conductive filler. The mechanisms and influence of different BM time to exfoliate layered GNs and compound...

Laser cleaning of the mildew on the optics lens with economical and ordinary Diode laser has been studied in this paper Mucor and Penicillium are the simples tested in the experiments. The mechanism of laser cleaning them is thermal effect through the interacting of photon and mildew It is demonstrated...

According to the problem that the quality assurance of acrylic is not reliable, we use the Michelson interferometer theory to build a Spectral-Domain Optical Coherence Tomography system composed by reference arm, sample arm and spectrometer. Obtaining the 2D and 3D pictures, then measuring the thickness...

Start-up mark is an important factor leading to woven defects. The reasons of start-up marks were discussed. At present, cloth fell displacement is a main factor to produce start-up marks for a loom. The relationship between cloth fell displacement and its influence factors were studied. Intelligent...

A new method is presented for variable duty cycle of photovoltaic subregional maximum power point tracking(MPPT).It has combined the advantages of the popular MPPT method ,In different areas of photovoltaic power generation using different duty cycle control method, Optimization of the target area using...

With the continuous expansion of universities and increase of school scale, workload of textbook management staff in college become more and more heavy. Using the traditional manual record has been unable to meet the demand, this paper study the design of college textbook subscription system based on...