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Some problems including complex calculation methods and parameter calibration difficulties exist in the current corrected calculation of the sediment discharge. A new method based on the copula function was proposed in this paper to solve them. The results show that the proposed method can improve the...

In the face of ageing population and coordinated development strategy of the Beijing-Tianjin-Hebei region, Beijing-Tianjin-Hebei region endowment development of small town exists the following problems: endowment mode single, existing polarization between regions, low level of endowment services, inadequate...

In order to improve the efficiency of freight vehicle and cargo matching, a mathematical model was established, which describes target and the related constraints, and quantum evolutionary algorithm was proposed to solve this matching problem. In the experiment, improved quantum evolutionary algorithm...

With the rapid development of ultra-high voltage grid and interconnections of regional power network, it brings adverse influence on frequency control of the power system. The stability of power grid frequency mainly depends on primary frequency compensation (PFC) and automatic power generation control...

.In this article, we introduced the classification and prediction algorithm of data mining into aircraft engine fault diagnosis, then analysis and compare the Random Forest algorithm and Neural Network algorithm.The simulation of these algorithms and experimental results show that the two methods have...

In the current social economic development circumstances, people's daily production and life are increasingly dependent on energy resources. However, because coal, oil and so on are non-renewable resources in real life, in this case, In order to ensure that China can achieve long-term development, we...

Rapid development of the Internet has brought huge changes to commercial modes, lifestyles and social organizations, and also raised new questions for design practices. Traditional design subjects can hardly meet demands of increasingly extensive application fields, nor can they effectively explain new...

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...

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...

Nowadays, more and more social media platforms support hashtags to facilitate information classification. Like Twitter hashtags, a user-initiated hashtag can suggest emotion/mood, convey so much extra information in addition to the actual tweet. Hashtags have been widely used in topic analysis because...

This paper addresses a modified method of extracting acoustic pulse based on the multi-band spectral subtraction and the frequency band variance. In this method, the acoustic pulse is detected, the noise spectrum is estimated and subtracted from the acoustic pulse spectrum. By abandoning the late reverberation...

A novel structure of networked control systems which incorporates output feedback predictive control and event-triggered communication scheme in a unified model based on the networked control system with packet loss is proposed in this paper. The load of communication channel is relieved by event-triggered...

In view of the fact that a server can provide parallel service for multiple customers in the practical application at the same time, the corresponding queuing models are constructed, and the system running indexes are inferred accordingly such as the steady-state probability, average queue length, average...

In order to improve the mechanical structure of the type of fault resolution precision high voltage circuit breaker spring mechanism, the paper analyzes the characteristics of the circuit breaker and the combination of mechanical vibration signal PSO algorithm (PSO) SVM parameter optimization method...

With the development of smart grid, electric power system data surges in a short period of time, and the traditional data storage and processing platform can't meet the requirements. In this paper, big data-related technology will be applied to the electric power data management, using Hadoop as a basic...

The motion sensing interactive devices can greatly enhance the sense of immersion. In this paper, the flow of the interaction with the HTC Vive is sums up five step. Analyzes the positioning principle of the HTC Lighthouse and introduce the function of the HTC thumbstick. Then defines the quaternion,...

Peer assessment has got a lot of attention because it serves as a useful tool for scaling the grading of open-ended works. But it does not always produce accurate results because of two important reasons: students' ability and students' attitude. Based on students' peer grades and the evaluation attitude...

A novel hybrid fitting energy based active contours model in the level set framework is proposed. The method fuses the local image fitting term and the global image fitting term to drive the contour evolution. Our model can efficiently segment the images with intensity inhomogeneity no matter where the...

Adaptive transmission system selects the suitable transmission rate on the basis of the current channel state. In this paper, we exploit the signal to noise ration (SNR) as a benchmark of standard to measure the channel state. We employ data fitting (DF) to estimate SNR, which is a key technology of...

In the modern society, static defect detection technology become an effective way to build reliable software. But the phenomena of misinformation and failing to report in the result of static defect detection makes testers needed to confirm the false alarms one by one manually. It is necessary to improve...

Flight or maneuvering at high angle of attack is one of the most important parts for the modern fighters. When the angle of attack is within the usual range, the aerodynamic characteristics have a linear relationship with the dynamic of aircraft. With the increase of angle of attack, the airflow separation...

The main research content is a quantitative description of the structural uncertainty problem (Quantification Uncertainty) based on the finite element theory. For the first time, reduction integration method is used to decompose multi-dimensional random response function, the multi-dimensional function...

In the intelligent optical networks, there are two key problems in the long-distance and high-speed intensive service transmission. First one, the sharing scheduling problem of the optical networks resources, namely the privacy problem. Second problem, users of network services require high-quality,...

The rapid development of science and technology provides reliable protection for the expansion of electronic engineering applications, and gradually improves the production efficiency of related industries. With the influence of this situation, in order to meet the people's demand for electronic engineering,...

The quality of flight performance directly determines the execution of flight tasks. For the establishment of a simple and effective methods and calculation of maneuver performance, a lot of work were completed. By the principle, method and steps of calculation maneuvering the aircraft flight performance...

With the rapid development of mobile Internet technologies, mobile learning has become a new way of learning, which is playing an increasingly important role in classroom teaching and autonomous inquiry learning. EBook realizes the perfect combination of traditional learning resources and mobile learning,...

Computer has received more and more applications in various fields. In this paper, many new periodic wave solutions expressed by Jacobi elliptic functions of the Mikhauilov-Novikov- Wang (MNW) hierarchy are obtained by using the extended F-expansion method. In the limit cases, the obtained Jacobi elliptic...

With the rapid development of information technology, great changes have taken place in people's reading habits, and paper books are being replaced by eBooks. Digital annotation tool allows readers to highlight or insert notes into eBooks during the process of reading, which is an important way for readers...

An auxiliary model based stochastic gradient estimation algorithm in proposed in this paper. The unknown variables in the information vector can be estimated by using the auxiliary model. Then the unknown parameters can be estimated by the stochastic gradient algorithm. Furthermore, in order to increase...

In MapReduce environment, problem of data redundancy,a large number of tasks to be processing and mass data storage come up, in order to solve these problems, we put forward the way of data prefetching , preprocessing of hid the remote data access latency, by adjusting the allocation of resources to...

Web services have been widely used in complex software systems. To guarantee software quality, many researchers have been devoted to the testing of web services. Traditional web service testing approaches mainly focus on the automation of testing process, test case generation etc. However, the web service...

The generation of solar power are known to be seriously influenced by many factors, such as temperature, humidity, et al. These factors cause the fluctuations of solar power system. This paper considers those fluctuations of different terms by using actual historical data and the different distribution...

The similarity between different subcategories and scarce training data due to the difficulties of Fine-grained recognition. Even in the same subcategories, there can be some differences due to the distinct color and pose of objects. We propose some models for fine-grained plant recognition by taking...

The proportion of the solid part portion in a GGO nodule is one of features to detect lung cancer. It is difficult to segment the solid part in a GGO nodule completely because tissues surrounding GGO nodules include some impurities like noises in image processing technology. This paper proposes Active...

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...

This article review the selection of service trade barriers, quantitative method, the estimation method and the economic impact modeling of the barriers eliminating. Exploring the barriers index construction, the influence of the economic growth of the benefits and costs,when eliminate service trade...

Entering the 21st century, China's marine economy has been experiencing rapid development, and the spatial structure of coastal city's marine economy has also changed significantly. This paper, introducing the term "geospatial", chooses a selection of index, with consideration of spatial effects, regarding...

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,...

Guarantee companies, as emerging non-bank financial entities under the international economic development, are recognized as a high-risk industry. As a platform for financing guarantee company, Guarantee companies connect firms and banks.It has a far-reaching impact on social and economic development,...

Clean Development Mechanism (CDM) is one mechanism that can bring significant economic and social benefits, can solve climate and environmental problems by market means, and it is also a win-win mechanism for cooperation between developed and developing countries. This paper will classify the related...

Based on corolla 1ZR electronic-controlled engine, design and research were made on the engine test bench with dismounting and operation function. The equipment can be used in operation teaching area of the auto repair industry or automotive related majors in vocational school. The bench includes the...

With the concept of "student - centered" and the flexible teaching and learning methods, the flipped classroom is being favored by more and more educators which focus on students' individualized and comprehensive development. Based on the present situation of mechanical specialty in independent college,...

In the library of the new approved normal four-year university, how to deal with the change of direction of running a college, of function and the structure of the subject construction, etc. is very important. The writer surveyed some libraries in the university famous in economics major and looked into...

Economic can be seen as the outer form of a nation's development whereas culture is the inner driver of a nation. The culture will shape and affect the person's preferences and ideas. According to the Upper Echelon theory, as the main decision maker, senior executive team's preferences and behavior will...

With the constructivist learning theory, Dewey's teaching philosophy of "learning by doing" and "lifelong learning" as the theoretical basis, BYOD-based new teaching mode of business translation can meet the needs of mobile learning, realize the cooperation of real teaching and the virtual classroom...

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...

The rapid development of the economy and the further opening up to the outside world, as well as the country in the industrial structure adjustment continued to force, the exhibition industry ushered in the development of the spring. Every industry in the process of rapid development will encounter problems,...

At present, many colleges and universities in the elective courses are arranged in a second foreign language, such as Japanese, Chinese and so on, but most of the school's second foreign language teaching there are short teaching time, teaching materials are not uniform, low degree of attention, This...

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...