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This paper proposed a numerical model to simulate the hydraulic fracture propagation based on the extended finite element method(XFEM), in which a fracture representation is explicit and independent of the mesh grid. The fully coupled formulation described various physical phenomena, including the solid...

This article focuses on the expression of the image and artistic conception of Chinese characters; the design and application, the opportunities and challenges of Chinese characters elements in modern design are analyzed. Chinese character as a pictograph, it is the inner artistic conception of "implication",...

With the reform of the national Power Grid Corp system, China's power supply enterprises are facing new opportunities and challenges. However, for a long time, it has been influenced by traditional ideas, management system, personnel quality and other factors. The power supply enterprise should not only...

In mobile robot researches, path planning and obstacle avoidance plays a very important role and has been a very challenging research topic. For path planning, it should produce continuous path from the starting point to the destination without colliding obstacles. Therefore, we proposes a genetic algorithm...

It is necessary to think about a method of determining the cost of a cesarean section that is in accordance with the real conditions in a private hospital so that the hospital does not suffer losses. The research objective was to determine the method of calculating the unit cost of Caesarean section...

This research aimed to describe the effectiveness of curriculum 2013 implementation through the practice of and interaction in distance learning at schools amidst the COVID-19 pandemic. Aurther investigation was conducted to reveal the influence of teacher-student’s learning interaction during a pandemic...

Aiming at the problems of different standards and incomplete index coverage of urban rail transit evaluation system, combined with relevant standards and norms at home and abroad, a service level evaluation index system was established from the perspective of the whole process of passenger urban rail...

Adaptive learning was an interesting topic amid the many choices of 21st-century learning strategies. The development of research and topics related to adaptive learning is believed to grow rapidly in line with the diverse needs of the students. However, trends and research developments related to adaptive...

In response to the lack of a unified parameter detection method and system for steam therapy apparatus, this study aims to establish a detection method for its key parameters and collect and store data through computers. By analyzing the principle of the equipment, the core parameters of steam temperature,...

This study investigates the impact of China’s Environmental Protection Tax (EPT), implemented in 2018 as a quasi-natural experiment replacing the pollution discharge fee, on high-quality enterprise development. Utilizing a difference-in-differences (DID) model with panel data from listed companies on...

In view of the interactive and systematic problems of accident caused by high technology, the method of risk identification in the perspective of system theory is studied. We analyze the Systems-Theoretic Accident Model and Process (STAMP) and the basic steps of Hazard Analysis Technology (STPA) based...

A new method on single-looking complex SAR images coregistration from interferometric coherence modeling is proposed to accurately seek homologous points. The set of Doppler, slant-range and ellipsoid equations are employed to compute the coarse matching position. The mathematical model of spatial coherence...

The information security of wireless sensor networks is a hot issue in research. This paper examines combining the scheme of the asymmetrical public key system and the threshold key scheme, and proposes a dynamic key management scheme through the second level key matrix of authentication mechanism from...

This study is to uncover VHD-related important biological features for understanding molecular of this disease. The system analysis strategy is applied to generate the first VHD-related FFL network. Then, the network topology is mapped into the biological space to refine the biological features of VHD....

The adsorption of different cationic collectors on mica (001) surface is studied using molecular dynamics simulations. The relationship between structure and adsorption performance of collectors has been discussed. The MD simulations indicate that both the interaction strength and adsorption behavior...

Using asymmetric loss function, this paper estimates asymmetric preference in central bank foreign exchange market intervention in seven emerging Asian economies between January 1999 and December 2014 and its three sub-sample periods. The estimation results indicate that all the seven countries have...

The determination of C fractions in lab requires prior extraction steps that are laborious and time-consuming. Ozonation chemiluminescence can avoid the problem and has been successfully used to measure the C and N compounds in air or water, thus was proposed to determine C fractions of organic materials....

A novel asymmetrical photochromic diarylethene compound 1-(3,5-dimethyl-4-isoxazolyl)-2-[2-methyl-3- benzothiophenyl]perfluorocyclopentene 1o has been synthesized, its photochromic properties and fluorescent properties were investigated in detail, such as photochromic, fluorescence switch and kinetics...

"Long-term education reform of the nation and development plan outline (2010-2020)" promulgated in July 2010,has put forward: "The information technology has revolutionary influence on the development of education, so it must be attached great importance to".With the rapid development of information...

In this paper, GaSb-based material in the near-infrared semiconductor laser has a broad application prospects. For the problems and etching solution suitable particularly critical of etching GaSb-based material. we studied on different etchant experimental analysis the HCl+HNO3(30+1)@T=5 ,37% HCl, HNO3+(0.08MHCl+CH3COOH)...

Nowadays, it is easy to create digital books. However, through many university teachers create their own digital books as their teaching materials, it is difficult to evaluate and improve. In this paper, based on our previous research on the learning behavior analysis results, we prototype a digital...

As for the problem the image can be generated by computer software, so that we cannot recognize the authenticity of these images using our eyes. In this paper by analyzing the differences between photorealistic computer graphics and natural image on image texture, we put forward a photorealistic computer...

Emotional education is an important aspect linking ideological with political education of college students. At present, the discussion on the emotional education of college students remains in the theoretical stage, such as advocating the people-oriented education concept, focusing on improving moral...

Artificial intelligence and interactive technology have benefited all aspects of life. Science technology has rapidly entered the field of children’s education. Transformation of children art education industry is closely linked with modern science technology. According with the law of children’s growth...

With the increasing of wind power installed capacity, the demand for power generation quality of wind power system is getting higher and higher. The magnitude of harmonic generation in wind power system plays a decisive role in the output power quality. Effective suppression of harmonics is a key indicator...

The innovation and entrepreneurship education is an education that fosters college students' entrepreneurial consciousness, innovative spirit, and innovative entrepreneur-ship. With the development of mass innovation and entrepreneurship (I&E) in China, I&E education has achieved many remarkable achievements....

Computer network information security is more and more attention in the national life, the reason: much important information is stored on the Internet, once these information leaks out will cause immeasurable losses. The network information will leak out, on the one hand, there are many invaders one...

With the improvement of living standard and the rapid development of economic globalization, China’s population aging is becoming increasingly obvious, and the problem of population aging needs to be solved urgently. In the second digital revolution, block chain technology was applied to the social security...

Indonesia has vast potential of maritime resource. It is necessary to increase knowledge through education. The purpose of this study is to find out student’s perceptions about the development of maritime teaching materials. This study was used quantitative as a research design and was conducted from...

Youth character strengths becomes the front line for the nation’s future generations to face future challenges, including during the Covid-19 pandemic. Previous research has shown character strengths in helping people and the nation cope the vicissitudes of Covid-19 pandemic. This research aims to identify...

This research aims to elucidate student responses to the application of the Project Based Learning (PjBL) learning model in the introduction to solid State physics course. Physics education study program students are the population of this study, FKIP Jambi University who took the introduction to solid...

Artificial intelligence is developing in the field of news dissemination, integrating into the entire process from content creation to verification. It has become the core of content creation, driving the transformation of information dissemination from personalized to customized and enhancing the experiential...

Purpose-this paper is to study the impact of Internet-using on household consumption expenditure. Methodology-based on the data of Chinese General Social Survey in 2017, this study uses Stata16 software and multiple linear regression to test hypothesis. Findings-the results show that Internet-using significantly...

Cosmetic products have become a primary necessity for both women and men. The development of cosmetic products continues to increase, one of which is cosmetic products with Perception Halal Certification. This research was conducted with the aim of determining the influence of Brand Love and Brand Sacredness...

Nose wheel steering control system is the kernel of the ground maneuvers, and has its own notable functions and features. After the introduction of Principle and State of nose wheel steering system, this paper computes the damping of aircraft's shimmy and gives the simulation analysis of damping functions...

Under the background of market economy, in order to pursue maximization of economic benefit, it has been one of the major events for the small and medium-sized enterprises to reduce their tax burden through reasonable tax avoidance on the premise of not violating the laws and regulations, which may reduce...

The era of large data will change the way we understand and form statistical information. To store, integrate, process and analyze massive amounts of data can be viewed as a new data analysis method. This kind of intrinsic nature based on data relations determines the inevitable relationship between...

Elevator accidents occur frequently, brake function failure is one of the main factors. If the brake function fails, it will cause the elevator to run out of control. Therefore, the effectiveness of the brake function is closely related to the safety of the occupants. The electromagnet is the most critical...

The focus of this paper is the improvement of the quality of texture image segmentation. We proposed a new unsupervised segmentation method based on Overcomplete Brushlet transform and Gaussian Markov Random Field. A texture image was transformed to Overcomplete Brushlet domain, in order to extract its...

In ancient China, there was a profound understanding of meteorological disasters, and formed a unique set of defense ideology and system. Along with the deepening of the cognition of nature, since pre Qin period, two kinds of meteorological disasters prevention thoughts are develop rapidly, that is,...

The phenomenon of "strong intention but weak action" between entrepreneurial intention and entrepreneurial behaviour attracted scholars' widespread attention. This paper examines the mechanism of cognitive dissonance in the process of entrepreneurial intention to entrepreneurial behaviour. Based on the...

With the advent of the global information technology, China's major industries have also entered the information process, but the construction industry relative to other industries, manufacturing industry, electronic industry and so is still relatively backward, and the degree of information that most...

Using the analysis of the design goals for a new car the basic structure type of this new car was determined. Under the presupposition of giving power unit, the various of matching scheme of driveline and engine was selected preliminary. The vehicle model was construced by using AVL-Cruise software,...

As the direct sensor of air quality, the public's perception of air quality is an important basis for the government to make air pollution control decisions. Taking Lanzhou residents as research objects, 521 questionnaires were sent to four urban districts to obtain relevant data on environmental perception...

Stimulated Reservoir Volume (SRV) is one of new emerging hydraulic fracturing techniques to develop shale gas, tight sandstone and other unconventional reservoirs. The favorable geological conditions and reasonable fracturing design are critical factors to form complex fracture network that is different...

This paper takes brake shoe of drum brake as the object of study. The three dimensional model of brake shoe is established by using CATIA software. It is calculated that the driving force of the cam to brake shoe and the spring of brake shoe back position. Based on this, the static analysis of brake...

In order to understand the situation of land use in Karst and the corresponding trend of variation in the future 30 years, based on the geographic information system (GIS), the dynamic variation of land use in Karst wetland has been analyzed by using the Landsat pictures in the year of 1990, 1995, 2000,...

In view of the current lack of practical light weapons reserve model research, through the analysis of factors and the effort on combing related concepts, a light weapons reserve military conceptual model and mathematical model have been established, which provides a reference for decision-making and...

One of the tourism villages in Bali which is classified as successful and often as a reference for the development of other tourism villages is Pinge tourism village (which will later be called Pinge only). As a village, Pinge has culture, both traditional, artistic, culinary and natural life. To support...

Based on the current status and characteristics of private undergraduate colleges and universities, this paper analyzes the challenges faced by undergraduate talents training in civil engineering, and puts forward the ways and methods of undergraduate training of civil engineering majors in private universities....