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This paper proposed a feed-forward control strategy for active power filter. The feed-forward controller and the current controller are designed based on the state-space averaging model and the voltage controller is designed based on the power model. Since the grid voltage may generate big impulsive...

Differential evolution algorithm in solving complex function optimization problems, the problems of convergence rate and precision is not high. At the same time, there is a big difference in the performance of evolutionary algorithms for solving the different types of optimization problems. To solve...

Semantic prosody is the research focus in the field of second language acquisition. Corpus-based language learning is considered as an access to the improvement of second language acquisition and the reflection of lexical items along with particular connotations habitually. This paper is based on semantic...

According to the construction requirements of State Grid Corporation substation condition monitoring system, the on-site monitoring data of the station is connected to the main station system of the state evaluation center, and the evaluation of the primary equipment is completed. However, the early...

From the development of Wushu Association in Song Dynasty and the spread of Wushu culture, with the changes of social environment influence to the martial arts community as the starting point, through the corporate culture, weakening the single mode of communication, cultural heritage and living environment...

Auspicious decoration is an important part of the traditional residential buildings in southern Fujian, reflecting the southern Fujian people a yearning for the pursuit of a better life, embodies the southern Fujian region unique history and culture, religious beliefs, national psychology and aesthetic...

The existing coarse-grained monitoring mechanism in Spark has much difficulty in analyzing and locating the bottleneck during the execution of tasks. Aiming to solve this problem, we divide the execution process of Spark tasks into several subphases, and propose a fine-grained subphases-based monitoring...

Accounting education in colleges teaches knowledge and skills of accounting major and cultivates talents with humanistic feelings, critical and innovative thinking and honesty. It is the original intention of college education that is different from training institutions. Innovation is the first power...

In this paper, we analyzed the status quo and existing problems of performance evaluation. Using KPI index design method, we constructed a performance evaluation model of administrative service according to the layers of administrative service activities. Such work has laid a foundation for putting theoretical...

Multi-variant screws are a kind of complex screws with two or more variable parameters, such as the lead, diameters, groove depth and edge width. These screws are increasingly used in machinery to compress, transfer, or process materials in many industries, and their sophisticated geometry plays a crucial...

The paper aims to explore an innovative design method which conforms to the aesthetic way and ideology of modern social life and provides satisfaction in tourism consumption from the perspective of regional culture elements. It explains the significance of Wenbo culture product design based on regional...

The increasing heavy metal pollution in the sugarcane soil along the Huanjiang River was caused by leakage and spills from Pb and Zn tailing dams during a flood event.A 12-month experiment was conducted in the farmland with contaminated soil to evaluate the potential of sugarcane for remediation of soil...

A key scheme based on multi-dimension location is presented for heterogeneous wireless sensor networks (HWSNs). The wireless sensor networks consist of some nodes that have greater power and transmission capability than other sensor nodes. All kinds of nodes are deployed evenly in sensing space. The...

40Cr steel diesel engine connecting rod were quenching and tempering by waste hate after forging and its mechanical properties were studied. The results showed that comparing with traditional technology, the forging-remnant-heat quenching and tempering technology route for 40Cr connecting rod of diesel...

The development of low-carbon economy plays a major role on the optimization and upgrading of China’s export trade, as well as the development of green trade and the improvement of the level of technology on the production of foreign products. However, in the short term it has some limitations, for instance,...

Recent years, with our economy sustained and fast development, environmental problems become increasing serious, especially for air pollution problems. Smog problems are intruding more and more big cities. Improving air quality has become an urgent demand of city development. This paper proposed a spatial-temporal...

With case study of MOOC, this paper suggests a perspective to observe experts’ instructional strategies for teachers’ professional development. There are four MOOC courses, which come from different fields(art, social science, and computer science), selected to focus on the analysis of instructional...

For the sparse features of the microblogging text, the author proposes a method of microblogging text classification based on the features extension by Word2Vec. We train the text by using Word2Vec tool and find the words which are similar to original features semantic as the features of short text....

In the process of promoting the modernization of national governance systems and governance capacity, Xinjiang needs to deal with many problems and the situation is very complicated. Actively combing and summarizing the important significance of promoting the modernization of governance systems and governance...

Constraint-variable correlation is the most important coupling correlation in unit commitment problem. Reasonable arrangements for the correlation will simplify the model complexity, and reduce the calculation time. And minimum on/off time constraint is one of the most complicated time coupling constraints....

The application of carbon nanotubes (CNTs) in biomaterials field was limited by its poor dispersion in water solution. In this paper, a specific methodology based on potassium permanganate (KMnO4)/concentrated sulfuric acid (H2SO4) hydrothermal oxidation was used to modify the surface of multi-walled...

Based on the description of ground penetrating radar (GPR) data processing and interpretation, this programs solve the recognition and conversion of GPR original data and display the GPR field data. The programs eliminate the built-in post-processing software reliance on software dongle. The conversion...

Vocational education that aims to prepare students to enter the workforce have to responsive and anticipatory to the demands of the world of work today and the future. Acceleration of science, technology and employment structure in national, regional and global context brings the consequences of the...

Objective: The purpose of this research is to describe the childbearing decisions in sero discordant couples.Method: This research used a qualitative method with a case study research design. Total primary informants involved 10 informant couples, and triangulation informants involved 5 informants. The...

This study was intended to identify student conceptualization about basic concept of ecology by outdoor learning with school ground as media This was conducted by mix method that included to quantitative experiment and qualitative by analyzing student answers. The sample encompassed 63tenth grade students...

Migration of health personnel is a phenomenon that is governed by law at the intersection of the tendencies peculiar to human rights protection as a branch of public international law and to international legal regulation of migration. However, this intersection looks like not realized by the states...

This paper discusses why William Blake entitled his one of his most important poems--America a prophecy. The author analyzes the issue from different aspects: the life story of William Blake, the social background and the image of Orc.

Parameters selection plays an important role in the model updating and a good parameters selection improves the efficiency of model updating. The sensitivity and the significance method are widely used for parameters selection. The theory and application are researched. A real structure was selected...

The non-negative matrix factorization (NMF) algorithm is a classical matrix factorization and dimension reduction method in machine learning and data mining. However, in real problems, we always have to run the algorithm for several times and use the best matrix factorization result as the final output...

At present, there are many methods to improve the compensation performance of active power filter (APF). However, to improve the reliability of APF, dead-time between two IGBT switches in the same bridge must be set large enough to guarantee the IGBT operating safely, which will impact the output performance...

Common practise claimed, that there should be stated certain models in outline for relations with public. The most important need is anchorage of united and strategic form of public relations, which will be integrated into the complex marketing communication of an organization. This need is reflected...

As there are an increasing number of 3D models available on web, it is necessary to develop a system to help people find and get them. In this paper, we propose a system for content-based retrieval of 3D models on web. Users can submit an example 3D model to the retrieval system, and it will return a...

This paper aims at researching on multi-factorial risk coupling effect on construction schedule of large construction projects. Combined with related data of construction industry in China and with the means of model and Matlab simulation, the paper has got the effective value of multi-factorial risk...

The inversion of aerosol optical depth (AOD) of Beijing in each four seasons of 2014 year was carried out in this paper. The results show that, in seasonal distribution, the AOD of Beijing city was lower in winter and spring, stable in summer and autumn. In spatial distribution, the AOD is large in the...

Through the analysis of theory and practice, this paper finds that in the modern society, the economic growth needs certain social conditions. As endogenous growth theory points out, in the long run, the ultimate decisive forces of economic growth are the promotion of scientific and technological innovation...

Endogenous growth theory is a new type of economic theory which was born in the 1980s, it is believed that sustained economic growth momentum not only comes from the two factors of capital and labor in the traditional theory, technological innovation and progress is more important. Compared to traditional...

a sprout layer-rack aeroponic cultivation device has been designed to solve the problems of low space utilization rate, large consumption of irrigation water, unbalanced growth amount and low automaticity in sprout production. SolidWorks has been employed to build 3D models for spare parts and the overall...

The development of the Internet of things has put forward new requirements to the data processing capacity, and outlier detection has found an increasingly wide utilization in the field of data mining. The accuracy of the outlier detection algorithm based on Euclidean distance in the high dimensional...

High tech industry as the embodiment of the comprehensive strength in different countries has become the main force of international competition. In this paper, the Hotelling model is used to analyze the problem of pricing the products. We find out that equal pricing will bring them greatest profits...

Within form and its current status, the existence of madrasah actually has passed a long history in struggling for the recognition and equality. National Education System Act No. 2 of 1989 and Act No. 20 of 2003 are the basic policy which decided by the g

Text localization is a crucial course for image processing. In this paper, an algorithm for text localization based on Complex Nonsubsampled Shearlet transform (NSST) is proposed. Complex NSST is implemented by a projection followed NSST. The Projection operation converts the input image into its analytic...

The article reveals the originality of Sergei Taneyev's approach to tragedy. S. Taneyev treats opera as an oratorical performance with the features of mystery. The author of the article shows the organic fitting of an oratorical component with both the choral component of the Aeschylus' source work and...

Given the basis that there is no perfect theoretical of the simple and practical geotechnical elastoplastic model which has been set up, triaxial compression test results cannot provide elastic-plastic analytical formula. This article embarks from the basic definition, according to the variation characteristics...

Sleep Electroencephalogram (Sleep EEG) detection and treatment can provide the basis for clinical diagnosis and treatment. According to the non-stationary random character of EEG itself, the paper proposed multiscale sign series entropy (MSSE) method and applied it to the state of sleep EEG analysis....

In a designated verifier signature scheme, only the designated person can verify the validity of the signature. Due to such attribute, it could be used in many fields such as financial payment system, e-voting, and e-taxation. Recently, Lee et al. proposed an identity based signature scheme to overcome...

In this paper, the mechanical and forming properties of 2A12 aluminium alloy sheet were determined by using the uniaxial tensile test, including the yield stress , the ultimate tensile stress , the strain hardening exponent n, the strain ratio r, the elastic modulus E and the elongation at fracture point...

XML has become the standard of data representation in the science and business application and standard of data exchanging among applications in Web. Driven by the demand and technology, various database vendors extend the function of XML. This article introduces an application system in the computer...

Dark shale and silty mudstone are rich in Yanghugou Formation. The thrust nappe moments, popularly developed in study areas, may lead to form thick-layer shale. Geological conditions are good for shale gas accumulation as follows: firstly, the main type of organic kerogen is III, and type II—I, hydrocarbon...

This paper proposes a novel consensus reaching model for multi-attribute group decision making (MAGDM) with information represented by means of linguistic distribution assessments. Firstly, some drawbacks of the existing distance measures for linguistic distribution assessments are analyzed by using...

In recent years, China's economy has developed rapidly, the process of urbanization has progressed steadily, the urban and rural infrastructure has been improving day by day, and people's living standards have been significantly improved. But behind the huge economic achievements are resource consumption...