Harmonic voltage of the concern bus in the power grid is the combinations of voltage contributions of each harmonic source. When the main harmonic sources are known to the system, how to distinguish the responsibility of these harmonic sources has important significance. This paper firstly established...

Fast Fourier transform(FFT) is an important tool for harmonic analysis in power systems and a method of FFT analysis of the signal is very important for power systems. For finding and forming a basic way to FFT analysis of feeder current, the paper embarks from the principle of Fourier transform and...

This paper is with the purpose of catastrophe point identification and comparison between wavelet analysis and Fourier analysis on their effects of filtering, and apply it into the analysis of traction substation feeder current. First, we assess the differences between wavelet analysis and Fourier analysis...

Due to the current explosion of the network traffic generated by content production and dissemination applications like popular video, Content-Centric Networking (CCN) has been the topic of recent research. In-network caching for CCN is expected to achieve an adaptive content delivery in the network...

Oil acquisition and development is a difficult problem in the oil field and related geological study. The traditional geological exploration is of low accuracy, and need a lot of manpower, material and financial resources. The 3D geological modeling has been the foundation of oilfield development work...

This paper introduces a kind of key technology of an energy-efficient wireless router switch design. The core of this technique is to monitor the flicker frequency of wireless network signal to realize the wireless router control. Our project team received data through experiments and analyzed it by...

Objective: In the traditional edge detection differential operators, the first-order derivative masks are easy to loss image details information, and the second-order derivative masks are more sensitive to noise. As for these problems, this paper proposes a fractional-order mask for medical image segmentation....

Objective: By combining fractional calculus and duality theory, a novel fractional-order primal-dual model which is equivalent with the fractional ROF model is proposed. We theoretically analyze its structural similarity with the saddle-point optimization model. So the algorithms for solving the saddle-point...

At present the study of mechanical properties of new quasi-honeycomb sandwich structure’s core research, ignored the thickness of quasi-honeycomb cell wall,that is, when establish finite element model of the structure, pick up the same thickness of quasi-honeycomb cell wall of modeling; While in practice,...

In beer production industry, some substandard glass-bottled beer should be recycled considering the economic benefit. The traditional way of recycling the glass-bottled beer totally depends on manpower, which limits the development of the production line. This paper proposes a new method for recycling...

Volume fracturing aiming to induce a complicated fracture network is a key measure to acquire commercial productivity in tight formation where the selection of optimal cluster spacing is important and essential. Therefore most numerical simulation is mainly used to obtain the optimal cluster spacing,...

Using 51 microcontroller as its main control chip, this system is designed to repair the deficiencies of the traditional water supply system in programming and functionality. Therefore, it is regarded as an innovation in the field of single chip microcomputer intelligent control. It senses height of...

Objective: The research analyzed empirically the impact of rural-household differentiation on the action of farmland transfer by Logistic model; Methods: Logistic Model; Results: It turned out that rural household vocational differentiation degree and rural household income differentiation degree existed...

Objective:Understand annual effective dose equivalent of Gamma Radiation in Different Places of One University of Jilin City, and then make brief analysis and evaluation. Methods: Gamma radiation in different places of one university of Jilin city was monitored with BH3103B portable X-gamma radiation...

Higher education in China has been growing rapidly in recent years. Sustainability in higher education has also achieved much attention. The concept of green university was proposed more than 10 years ago in China. It has received the positive response from colleges and universities, which also achieved...

Logistics industry is an important part of the national economy, but also is of the large industries for energy consumption. This study analyzes the relationship between economic output and logistics’ energy consumption in Shanghai during the period 1998 to 2012. The results show that the regression...

The tender process, which is to procure an outstanding contractor, ensure the construction quality and control the construction investment, is an important step in the process of construction project management. The paper proposes conducting an audit on the tender documents. Through the conventional...

A contract for construction project is of great significance to the whole project, it relates to the engineering quality, project duration ,project cost and all other content, so do the construction contract management can not only avoid unnecessary disputes in the process of engineering construction,...

The collapse of China Aviation Oil (Singapore), which has aroused huge attention and consideration on the effective implement of internal control in energy enterprises, warn us that the internal system, lacking the balance of power, will inevitably be an empty talk. This study, based on a series of reality...

Objective: Using Tieling rural area survey data, this research analyzed empirically the influence factor of rural-household differentiation behavior in major grain-producing areas by Logistic regression model; Methods: Logistic Model; Results: It turned out that the highest culture degree of family members,...

The objective of this thesis is analyses the strategic petroleum reserve, which is the important guarantee of national economic security. The current Chinese oil dependency and consumption are two ranks first in the world, but the amount of strategic oil reserves is relatively insufficient, reserve infrastructure...

Renqiu buried hill reservoir of electric submersible pump well in order to reduce the sewage invalid recycling and saving energy, using the electric submersible pump(ESP) well convert into pumping unit well to produce. The scheme design lifting process adjustment and optimization of 13 wells. Through...

At present the development of clean energy and sustainable development have become the main stream source of the world nowadays due to facing the serious global crisis of resources and environment. Investigation of energy situation and occurred problems of China and some typical countries, such as America...

The purpose of this study was to obtain low-carbon economic development level and analyze obstacle factor in Shandong province.This paper first designed the index system of low carbon economic evaluation containing the target layer and system layer and index layer,determined the weight of each index...

It’s an inherent requirement for the energy enterprises to effectively fulfill their corporate social responsibility in order to realize their sustainable development along with the society. Taking the listed corporations in energy industry as the research samples, this paper analyzed the influence of...

At present, with the rapid development of economy all over the world, the world's energy is in the condition of shortage. At the same time, there is a series of environmental pollution problems.At present,countries advocate the sustainable development all over the world , people hope to have a clean...

The study was to estimate the livestock and poultry breeding (LPB) non-point source pollution load in Sichuan province and provide support for control of LPB non-point source pollution. In the study, an improved export coefficient method was proposed to estimate LPB non-point source pollution loads from...