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Since SF6 has high liquefaction temperature, the reliability of GIS, GIL and other gas insulated electrical equipment is reduced, and the maintenance cost is high in areas with high latitude. Therefore, applying mixed gas of SF6 and N2 as an insulating medium can reduce the liquefaction temperature of...

The water and sediment discharge regulation (WSDR) project of the Yellow River is yearly implemented from 2002, while there are few reports about its influence on zooplankton. In this paper, we studied the species constitutions, horizontal distribution and community diversity of zooplankton based on...

An identification method based on modal strain energy is proposed to identify the damage of a functionally graded (FG) Euler-Bernoulli beam. Based on the strain energy of the FG Euler-Bernoulli beam, the expression of element modal strain energy (EMSE) is developed for the two-node beam element with...

The effect of dehydration on the quality of perilla was evaluated. The moisture content and water activity of the perilla decreased with the drying time and temperature. The chlorophyll content was enhanced when the drying temperature was decreased. The microstructure and cell wall were destroyed when...

In the study ,the coordination of GFRP rebar and concrete working performance are studied from two aspects of theory and experiment. By Making 9 groups of GFRP - concrete standard drawing specimen standard drawing and three groups of reinforced concrete specimen ,Getting the damage characteristics of...

The effect of drying temperature on sensory and flavor of perilla was evaluated. The color, microstructure and flavor was evaluated. The drying temperature of 55 oC hold the color and microstructure of the dehydrated perilla as the control, while the temperature of 95 oC was effective to keep the flavor...

The research and development situations of LNG plate-fin heat exchanger (LPFHE) were discussed in view of heat exchange in LNG field in petrol-chemical industry. The basic designing methods and the multi-stream heat exchange processes were illustrated by the cryogenic and high pressure cross heat exchange...

Based on the social motivation theory, this paper explores the reasons for the high dimission rate of front-line employees. Through a questionnaire survey of 432 front-line employees of J Company, the research finds that: Workplace loneliness has a positive effect on turnover intention, and occupational...

Heat pipe is a kind of high efficient heat transfer element, which is widely used in all aspects of life, especially in solar energy technology and permafrost. This research focuses mainly on the low temperature gravity heat pipe working fluid and discusses the influence of refrigerant thermos-physical...

Game teaching method is loved by the majority of teachers a humanized teaching mode, which can not only for students to provide a consistent with their age characteristics and personality characteristics of the learning platform, but also can effectively improve students' interest in learning, so that...

This paper proposes an effective data distribution mechanism based on RPL to maximize the survival times of sensors. For balancing energy consumption of sensors, an optimal data distribution algorithm is presented. The results show that the presented mechanism prolongs the survival time of network and...

The aim of education reform is to improve the quality of classroom teaching, allow learners to learn more knowledge and skills in an effective period of time. Since the promulgation and implementation of the "national education plan", a series of achievements have been made in improving the quality of...

With the amount of papers from 2008-2017 year in China, which retrieved by terms of "data service" and "library", this paper applies metabolic GM (1, 1) prediction model to explore variation trend of the hot-spot in the big data era. The result indicates that the proportion of paper’s amount based on...

This study explores the possibilities of data analytics in the retail industry by examining it from different aspects and therefore leading to some hypothesis of possible future applications of data analytics. This work starts with exploring the industry’s history, providing background information. It...

In recent years, tourism has been more and more popular, educational tourism has become a new tourist highlights in the booming tourism industry and it began to cause for concern. In addition to the function of physical and mental entertainment, open field of vision, tourism also can cultivate sentiments,...

temperature measurement instrument is based on thermocouple, with AT89C51 single chip as kernel. Dedicated chip max6675K for cold junction compensation of thermocouple is adopted to perform cold junction compensation to K-type thermocouple and to perform amplification, AD conversion and digital processing...

The purpose of this paper is to analyze the root cause of the rapid growth of A group enterprise in recent years through the analysis and comparison of operating mode of A in China's insurance companies combined with the new operation framework and models. Combined with A group's financial report for...

Considering the difference of phase-shift direction and amplitude attenuation direction when the optical wave propagates in conductive medium, with the boundary conditions of optical wave at the interface of the media, we derive the recurrence formula reflection coefficient for the S-polarized optical...

For the optically variable films series, using the boundary conditions of electromagnetic waves, we have given the propagation wave equation of S-polarized light wave in the optical variable film system with razor-thin metal film, which can be used to calculate electromagnetic field distribution and...

This paper deals with the study of the dynamic performance of service-manufacturing hybrid supply chain with different forecasting methods. Two forecasting methods in two-echelon hybrid supply chain system are exponential smoothing forecasts (ESF) and moving average forecasts (MAF). Based on Automatic...

Due to the large computation quantity of laser propagation simulation in complicated laser systems, the traditional serial simulation cannot fulfill the requirement. In this paper, the laser propagation algorithms of coherent light source and noncoherent light source were introduced, two parallel computing...

In recent years, the rise of local high-level colleges is a new trend in the process of the reform and development of higher education in our country, which has a profound and strong influence on the pattern of higher education in China. Under the guidance of the country’s policy of rejuvenating the...

The agricultural economy is still a critical component for the development of national economy in modern China; therefore, the efficiency of agricultural product logistics has huge impact on the development of agricultural economy and the industrial competition. Moreover, scientifically and systematically...

As human vision system works, the visual features extracted from colours, textures, shapes, etc. are complement and should be synthesized to make a decision. Existing applications mainly base on one kind of features such as the wildly used texture feature. We put forward that complement features should...

The effect of nitrogen on growth and nitrogen metabolism of Allium fistulosum L. was investigated to clarify the role of N in affecting the quality, and provide a theoretical basis for the optimization fertilization technique. Three nitrogen levels were tested in the experiment, namely total nitrogen,...

After analyzing suburb information, school-area concentration, subway stations distribution, and 20 other parameters, a machine learning project using Catboost regression is utilized to predict house prices in Perth. To improve the prediction accuracy, a few innovative variables are created, like “Average_area”...

In this paper, the polytetrafluoroethylene tank high pressure digestion method was used for the determination of trace elements of Allium fistulosum L.by ICP-MS. Welsh onion cultivars ‘Zhangqiu’ were selected as the experimental materials. The influence of different nitrogen lever on the content of trace...

To overcome the low efficiency of Least Squares Twin Support Vector Machine (LSTSVM) in classifying, a new method called Sample Reduction LSTSVM (SR-LSTSVM) is proposed. The method greatly reduces the training samples and so improves the speed of LSTSVM, while the ability of LSTSVM to classify is unaffected....

Considering the fact that copper (II) (Cu2+) act as a dietary need but toxic metal ions, its detection and quantification is very much important for human healthy diet and environmental risk assessment. Herein, we introduced a sensitive fluorescence sensor for the detection of Cu2+ based on ZnCdSe/ZnS...

In order to meet the needs of the development of automotive lightweight,a lot of advanced high strength steels are developed.The first generation of advanced high strength steel is very low in the strength-elongation product, lightweight and security.The cost of the second generation steel is high and...

Based on the IPA analysis method, this paper explores tourists' satisfaction with the image of Lijiang Old Town. It provides a reference for the green development of Lijiang Old Town's image. Methods This study used the questionnaire survey method to investigate tourists from different regions...

Recent studies on the fundamental aspects of gender stereotypes have raised public’s concern in Chinese society, where social expectations are very prevalent and are exacerbated after watching certain television programs for both genders. This suggests that the traits are traditionally viewed as masculine,...

Iontophoresis apparatus is a non-invasive device used to enhance the delivery of permeation across human epidermal membrane or extract endogenous substances from the body by applying a current across the membrane. This paper analyzes the transport theory of iontophoresis, and completes the whole frame...

COVID-19 has had a tremendous influence on economic activity throughout the world. As the largest economy globally, the United States’ finance-related industry changes have an essential impact on the world economy. The purpose of this paper is to evaluate the relative changes of each factor in the Fama-French...

With the development of economy, the level of science and technology has improved greatly. People’s demand of the Internet information is increasing in their daily work and life, so people’s demand of the Internet technology is even higher. The current mobile Internet technology is developing, as a result...

This paper presents a wideband variable gain amplifier (VGA) applied to 60GHz millimeter-wave receiver with an operating frequency from DC to 1.08GHz and variable gain range from 0dB to 60dB. The entire VGA consists of an 8dB fixed gain stage, a 0~48dB coarse gain control stage, a 0~12dB fine gain control...

In order to study the dynamic performance of steel frame-composite steel shear wall structure, a dynamic time-history analysis of a practical hospital buliding was carried out by using FEM software Sap2000. As a comparison, the studies on the building with reinforced concrete shear wall s and steel plate...

It is very important to develop concentrator, router, hardware and software of wireless module in networking of power information collection system. In this paper, the hardware and software of module are researched and designed in electricity information collection system based on IPv6 wireless sensor...

In this paper, stabilizing control of tracked unmanned ground vehicle in 3-D space was presented. Firstly, models of major modules of tracked UGV were established. Next, to reveal the mechanism of disturbances applied on the UGV, two kinds of representative disturbances (slope and general disturbances...

China’s real estate has always been a very important driving force of China’s economy. The proportion of real estate investment in GDP increased from 5% in 1995 to more than 13% in 2019, of which more than 70% was used for residential construction. Real estate not only accounts for 23% of household consumption...

With the rapid iterative upgrade of digital economy and internet plus, online shopping experience has been more and more widely accepted and loved by the public. Especially in the case of public health events such as COVID-19 outbreak, e-commerce transaction has become the mainstream format. This paper...

Human capital plays an important role in the development of social industry. High-quality skilled personnel are the basis for innovation in industry. At present, it is difficult to balance the supply and demand for human capital in the industrial application. The main reason is just difficult for the...

Energy is one of the energy used in the form of human life. Provide electricity power system includes a number of electrical equipment, part of the equipment in case of failure, will endanger the security of the entire power system. According to the statistical analysis, the power system more than 60%...

When domestic wastewater was treated by biological contact oxidation on soft packer and Bio-Filter process, the removal effects of COD/TN/NH3-N and TP were discussed at different C/N and loading in the paper. Further more the combined processing of biological contact oxidation and Bio-Filter were studied....

While online product reviews are valuable sources of information to facilitate consumers’ purchase decisions, it is deemed meaningful and important to distinguish helpful reviews from unhelpful ones for consumers fac-ing huge amounts of reviews nowadays. Thus, in light of review classification, this...

The first three-dimensional potential energy surface (PES) of Si-H2 system is calculated by the coupled cluster singles-and-doubles with noniterative inclusion of connected triple [CCSD (T)] level of theory. The computations involve full counterpoise corrections and large basis sets including midbond...

The two basic value embodiments to guarantee the procedural law are reflected in its fairness and efficiency. The efficiency function of procedural law can improve the jurisdiction efficiency effectively, which is the both the character of procedural law itself, and the basic rule to implement the effect...

With the vital significance of cultivating personality for individuals and bringing reforms to society, literature education is one of the most indispensable parts of the domestic and oversea higher educational systems, undertaking arduous tasks of conveying composite talents for various industries....

To guarantee the river water quality reaching the surface water quality standards，this paper used a small-scale experimental equipment and optimized hydraulic retention time（HRT）and optimum temperature range of the artificial wetland sewage treatment plant effluent, and the effect of advanced treatment...

As the core technology of the new era, big data analysis technology has a significant impact on the agricultural competitiveness of a region. Promoting the high-quality development of agriculture is of great significance to the construction of Rural Revitalization in Sichuan under big data analysis technology....