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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....

Real-time display system for remote training consists of video recorder with wireless transmission module, relay router, display terminal and video recorder carrier with multiple wireless transmission modules. The display terminal includes projector, desktop, tablet computer or smart phones. The video...

With the large-scale application of power electronics technology and computer technology in grid operation, automation level of the grid production and operation maintenance in China is increasingly higher, which also proposes higher requirements on the professional theory and skills of frontline staff...

This article mainly tells the development of power system relay protection technology, application status and application prospect in the future, and for the relay protection device equipment type selection, function analysis, this paper introduces the current mainstream of relay protection technology,...

Power system is a complex and huge network composed by power generation, transmission, substation and distribution, of which substation is an important part. In this aspect, the intelligent degree of substation is especially important. The 220kV substation of high intelligent degree is built in Hejia,...

Focusing on the uncertainty of the environment, a grid map building method based on the multi ultrasonic sensors is provided. Firstly, the single ultrasonic sensor grid model is constructed by dividing the detected area into three regions. Then the evidences which are needed to fuse are self-adaptively...

Call center is one of the most important means for telecom operators to provide after-sales service for customers. Every day, call center can produce a large number of voice data. But these data do not bring significant value to the enterprise. Recent years, the development of intelligent voice technology...

In this article, curve fitting is conducted on the original data of aluminum alloy via matlab. Then, to find out a fitting curve with optimal effect, comprehensive analysis is made on the judgement quantitative index of curve fitting. The wire feed rate of other given current is obtained with such fitting...

With the development of power electronic technology, harmonic load is one of the main reasons for damage to the power quality of the limited capacity power system. Firstly, the functional requirements of harmonic load model in the three-phase four-wire isolated power supply system are carried out according...

Osteopontin (OPN), as a malignant transformation related protein phosphorylation was firstly completed the extraction by Senger in 1979. With the progress of research on osteopontin (OPN), people found out that there was little amount in the normal tissues that was showed with low expression, however,...

The paper analyzed the flow of the diameter of 72mm twin screw extruder screw-type’s field measurement from some machinery co., LTD by FLUENT software. Firstly, through established the flow channel of three-dimensional entity model by Gambit, defined the boundary and completed the meshing simultaneously....

Porous photocatalytic titania film co-doped with Fe and Si was fabricated on carbon steel substrate by plasma electrolytic oxidation (PEO). The microstructure of the film was investigated and the photocatalytic activity of the film was tested by measuring the photodegradation rate of the organic methylene...

It is highly important to choose suitable of the foundation in underground engineering. With the engineering, the foundation is made of gravelly soil, which distributed discontinuity and had bad uniformity. Drilling method, dynamic sounding method and deep plate loading test were applied, combined with...

Follow the development of Internet, more and more opinion texts are written on social media web by people, and it is very difficult to find the features in these texts because of the texts scale. We propose an algorithm to find features from key words by words reduction method, which considers the correlation...

The Linux-based android operation system is now exposed to high risks of security since the malware of smart phone explodes. For the purpose of effectively detecting the malware on the android platform, an android malware detection method based on feature codes is described in this paper. By using the...

Recommender system has been extensively studied to provide the most relevant data to users in this era of information explosion. Among all kinds of recommendation algorithms, collaborative filtering (CF) algorithm is one of the most famous ones because of its high accuracy and simple implementation....

With the large-scale construction of wind farms, the access of the wind farms affects the voltage of regional power grid. Power grid data in the South China region is built on the PSD-BPA system, and the PSD-BPA data of the current region can be obtained from the superior power grid. According to the...

The choice of fuzzy rules and membership function of fuzzy self-adjusting PID controller of tunneling boring machine (TBM)’s thrust hydraulic system exists the defect of subjectivity to a great extent. The genetic algorithm (GA) was adopted to optimize fuzzy rules and parameters of membership function...

On the basis of the historical data of unit operation, consider the environmental cost, and KWH cost into the evaluation system, in order to developing guiding optimal operation of the thermal power units to run the software optimization . Through correlation analysis of the unit operation parameters,...

The detection of rail fastener defects is the key to ensure the running safety of high-speed trains. Traditional method is usually be detected rely on train workers who walk along railway lines to find out the potential risks. The method by artificial maintenance is slowly, costly, and dangerous. As...

With the rapid development of medical and health undertakings in China, the requirement of the qualified medical service system was increasing, more and more medical had introduced the advanced medical equipment, the introduction of a large number of equipment to make the medical equipment maintenance...

The diagnosis of breast disease in Europe and other advanced western developed countries were mainly the biopsy technique, which included fine-needle aspiration biopsy for cytological diagnosis and core needle biopsy for histological diagnosis. This two methods could figure out the basic pathological...

With the extensive application of machine learning. Deep convolution neural network (DCNN) learning method is developed on the basis of a multi-layer neural network for image classification and identification of specially designed. It has been improved and applied for single image super-resolution problem...

Low voltage molded case circuit breaker is widely used in the low voltage distribution system of customers. Along with the revolution of the electric power grid, Low voltage molded case circuit breaker in resident house takes more important intelligent function except of its traditional function. In...

The undesirable accuracy of MEMS sensor limits the range of its application. The compensating method for MEMS gyroscope random drift error is discussed. According to actual test data of gyroscope, the equation of fitting curve was deduced and compensating effect of different kinds of fitting methods...

Precision of ball screw had a great impact on the positioning accuracy of NC positioning platform. The lead error and backlash of ball screw, which could be accurately measured by laser interferometer, were two key factors affecting the positioning accuracy of NC positioning platform. By setting the...

The finite element analysis model of the crack fault gear with different crack depth is established by the modeling method, and the modal analysis is carried out by the finite element analysis method. In the modal analysis, the results show that the crack will have a certain effect on the stiffness of...

At present, the national grid invested heavily to carry out the construction of smart grid. As a key component of smart grid construction, electricity meter is developed gradually from the traditional intelligent electric energy meter, which is an important intelligent terminal in the smart grid. The...

The main purpose of this paper is to evaluate and compare a financial performance of Czech sugar refineries within a period 2010-2013. Due to the availability of financial statements for the requested periods were analysed following public limited companies - Cukrovar Vrb tky, Tereos TTD, Litovelsk ...

O. Henry was a well-known American writer in the world literature history. His writing is vivid and he is good at using irony, paronomasia, metaphor, metonymy and exaggeration to make the story full of fun. He is a master of surprising endings, and he usually design story plots dramatically, and makes...

As a native son of America, Bigger is a natural product of American society. He does not know where he belongs to, and how to find his way out of his bewilderment. He is a marginal man, and lives between white and black. During his life, Bigger experiences social and cultural destruction of manhood and...

Bigraph which proposed by Robin Milner is a powerful formalized modeling language. We can get the bigraphical reactive systems (BRS) by using bigraph to represent each state in a system. Model checking is the technology which can verify whether a given model stratifies the specified requirement and it's...

In this paper, we propose a dynamic gesture recognition approach based on multi-touch devices. This method contains three stages: dynamic gesture stroke collection, gesture feature extraction, gesture analysis and recognition. In order to recognize nine kinds of gestures in classroom interaction process,...

According to the theory used in researching certain type of doubly singular differential equations, by computing directly, we find out that a singular partial differential equation in two complex variables has a unique formal power series solution which is in a special form and whose coefficients can...

Aiming at the exist teaching problems of mechanical principle course, facing ability target of international engineering education, a further exploration and practice of teaching reform for mechanical principle course are carried out. The effective constructions are obtained in the following aspects:...

For the current teaching of mechanical principle course, there is a lack of a set of applicative software which is helpful to carry out the design and optimization of mechanical products. To solve this problem, according to the actual requirements of mechanism analysis and project design during teaching,...

Since the development of campus football, series of activities have been carried out all over the country and have achieved certain results. As the haze fog weather seriously affected campus football, we should take certain measures in face of haze fog weather so that the campus football activities will...

School-enterprise cooperation is the basis of the reform and development of animation major in high vocational colleges, and production and education integration is an important guarantee to improve the quality of education.Animation major in high vocational colleges should hold the great standard of...

Since the reform and opening up, China's national economy has maintained a rapid growth, GDP is increasing rapidly. But economic development are not only refers to the expansion of total economic output, but also in the promotion of qualitative aspects. Therefore, how to assess the quality of economic...

Nowadays, the online shopping market is very influential.To bring consumers convenient at the same time, there are many hidden dangers, from come out so far, has been a problem of fake online shopping market but around the ridge, like a raging fire double eleven, every year to refresh a new record, but...

The global economy has entered a new economic era with innovation as the first driving factor, and the acceleration of innovation resources has become a global trend. Technology transfer is the essence of innovation globalization. Compared with developed countries, China's current technology transfer...

Social network analysis (SNA) is one of the research methods of sociology, social construction is the main way to analyze the relationship between the social structure element, to analyze the global network and the individual network for the whole effect. Personality is an important research field of...

Since the reform of RMB exchange rate formation mechanism in 2005, the currency mismatch in the banking industry makes the change of exchange rate an important factor affecting the banking operation. This paper analyzes the currency mismatch of 16 listed banks in China, and points out that there are...

Richard Stuart Linklateris an American independent film director and scenarist. It takes almost 12 years for him to make a feature film called Boyhood, which mainly talks about a little boy Mason's growth experiences from 6 to 18 years old. Throughout the film, American parents' educational methods to...

The sources of requirements change should firstly be identified in the process of managing requirements, while the collection of information and the measurement of change activities should be conducted by methodology. This paper firstly reviewed the state of the arts of identifying and classifying requirements...

Basing on scene analysis and VaR calculation, this paper discussed system architecture of scenario calculation and accurate data's importance of system model from the view of system theory. We also discussed several kinds of data errors and their processing methods to avoid the error of data. Then we...

In order to further study the investment loan linkage business of commercial banks, this paper reviews the theories and empirical literatures of commercial banks carry out the investment loan linkage business in the field of venture capital in recent years. Summarized the main motivations and advantages...

This paper used urban data as analysis object. The author collected data from 2003-2013, 288 cities in our country as the research foundation, using cross-section data regression of econometric model. This paper explored the correlation between financial development and economic, expounded the action...

Since the implementation of “Internet plus” action plan, exploring how to fully integrate Internet technology with targeted poverty alleviation and guide targeted poverty alleviation to develop towards informatization, intelligence and science and technology is a practical problem that needs to be further...

2017 is a year for deepening supply-side structural reforms. It is also the initial year of China's sports industry reform. It analyzes the new normal and supply-side structural reforms, the new normal of sports industry. And it believes that promoting the supply-side structural reform is the only way...