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Network robustness against cascades is a major topic in the fields of complex networks. In this paper, we propose an attack-cost-based cascading failure model, where the attack cost of nodes is positively related to its degree. We compare four attacking strategies: the random removal strategy (RRS),...

With the development of the stage lighting industry and pattern recognition, the stage lighting console can learn from the algorithms in the field of pattern recognition to make it more powerful and more flexible. In this paper, the BP neural network is summarized as a carrier, and the BP neural network...

The development of college students’ critical thinking skills, related to the im-provement of our national quality and the growth of the national economy, is an urgent and important task in personnel training of colleges and universities. In major courses teaching, the schools should consciously train...

This paper is concerned with the exact traveling wave solutions of nonlinear wave equations. Using the tanh function method, we can obtain the accurate expression of the solutions. Further, according to the images of the solutions, we can get the variation depends on the velocity .

After the outbreak of COVID-19 in 2019, in the face of the epidemic's impact, China's education has received excellent resistance, and the traditional education model has undergone great changes. As many online teachings began to appear, teachers could not communicate face-to-face or urge students...

Information mining of urban thermal field is the key in the study of the urban public security and sustainable development. The moderate-resolution imaging spectroradiometer (MODIS) remote sensing images in 2010 were used to mine the urban thermal field information with the mono window algorithm; furthermore,...

This thesis conducts empirical tests for the contributions made by financial investment in education as well as human capital to the local economic growth in Sichuan Province according to the relevant statistics of Sichuan Province from 1997 to 2011. The results show that compared to the relatively less...

The Massive Open Online Course( MOOC), which refers to the rise of MOOC, has triggered the international research enthusiasm in the field of higher education. Due to the growing practical influence of MOOC, but keep away from its theoretical doctrine of Unicom, scholars not only focused on the change...

Bolt joints are widely used in all kinds of machines. The advantage of them is cheap and convenience. For different application fields, the structures of bolts are very different. They are typically lighter for the same strength and provide better heat conduction. As we know that do FEA (finite element...

Dye sensitizer is an important factor to the performance of dye sensitized solar cell (DSSC). This article simply reviews the development of dye-sensitized solar cells and the disadvantages of it at present, analyzes the advantages and disadvantages and its potential development of the natural dyes as...

In recent years, the problem of haze that has plagued our country has become more and more serious, which has seriously affected economic development and the health of the people. In order to solve environmental problems, China must transform traditional high-energy production methods and consumption...

Appliance specific energy monitoring is perceived as a prerequisite for reducing energy usage in households.In this paper, a non intrusive monitoring method is introduced, and a power identification algorithm based on transient detection is introduced. Then the simulation experiment is carried out by...

We design a new type of composite precipitator model which is an organic combination of the mechanism of the Electrostatic precipitator of Tubular Electrostatic Precipitator, the Centrifugal dedusting of Cyclone type ESP, and cleaning water film. We use the outer cylinder of cyclone precipitator as the...

Hexagon socket head bolts are widely used in many engineering fields as fasteners and are common and important parts for engineering, but for some hexagon socket head bolts it is still tedious to build the 3D models and assess their reliability. It is important for a hexagon socket head bolt to do reliability...

In this paper, we collected the meteorological data and forest fire danger rating data of four stations in JiangXi (NanChang, JingDeZhen, GiAn, GanZhou) from 2013 to 2015, and build a neural network fire prediction model. Then use GA, PSO and PSO-GA hybrid algorithm to improve BP neural network.By contrasting...

With the electric energy consumption monitoring equipment is the foundation to carry out energy-saving work, strengthening the monitoring of energy consumption especially power consumption monitoring work in China to improve energy efficiency, realize the sustainable development of the energy, construction...

Change in soluble sugar and organic acids of dragon fruit wine during fermentation by reversed phase high performance liquid chromatography (RP-HPLC); Organic acids chromatographic conditions: chromatographic column BP-OA, mobile phase A(1% H3PO4) and B (UPW), column temperature 35°C , the flow rate...

With the rapid development of Cloud Data Center, the recommendation systems that provide valuable suggestions for the users to address the problem of information over-loaded have provoked a vast amount of attention and research from multiple disciplines. In recent decades, both the matrix factorization...

In order to meet the needs of the power communication device This paper discusses the key technologies of the power switching equipment based on ATCA structure, including network topology selection and rack management system, as well as a system performance test result is given. The test results show...

The special habitat of mountains on the east bank of Erhai Lake not only seriously affects the ecological integrity and landscape harmony of Cangshan Erhai Nature Reserve, but also affects the ecological security around Erhai Lake. The ecological restoration of the mountains on the east bank of Erhai...

Improving the technological innovation ability of high-tech shipbuilding industry helps to improve the overall innovation level of China’s shipbuilding industry and promote the high-quality development of the national economy. Based on the perspective of complex adaptive system theory, the dynamic evolution...

The primary aim of online monitoring system of sewage treatment in Kunming, this system is built basing on Web Service Structures, is real-time monitoring of water quality parameters so that the changing of water quality can be easily known. The mission of this system focuses on receiving and managing...

We use the nanoimprint lithography to construct nanostructure on the surface of double metal Au electrode. Through the analysis of the influence of different processing parameters on the machining dimensions, we can arbitrarily control the structure size of the nano-pattern. By natural oxidation in air...

The zero-voltage-switching combined DC/DC three-level converter, just has six switches, and the voltage stress of all switches is ensured to be only the half of the input voltage, especially suitable for high-voltage input situations, and the converter can reduce the output filter significantly at the...

By immobilized ferric oxyhydroxide on absorbent can improve its dispersion property in aqueous solution, then improve its application in water treatment. Ferric oxyhydroxides composites had been used as the absorbent on contaminants removing nowadays. This paper use this composites to absorb manganese...

This paper analyzes the social education operation efficiency and the dynamic change process from 2019 to 2021 of museums in Hechi area by DEA method and Malmquist index method. The data show that the overall scale efficiency of museums is insufficient, the comprehensive efficiency of type museums is...

Due to the fierce market competition and the heavy impact of Covid-19, budget hotels are facing great challenges. In order to maintain competitiveness, it is necessary for budget hotels to have a smart technology solution system from a customer perspective in order to win customers at a relatively low...

This article describes the data in search results of crawl a crawl Web search engine to build the item repository. These methods make the efficiency of building Q improve and the costs reduce. Examing the questions based on XML storage format also have a very strong compatibility.

Based on the research of green economy, this paper recalculates the green GDP of 24 EU countries from 2005 to 2019, and analyzes the influencing factors of green GDP through a fixed-effect panel regression model. The results show that industrial structure (IS), energy intensity (EI), per capita gross...

Digital technologies help increase citizen engagement and engagement. How does it help and promote civic engagement? What is the difference between E-participation and offline participation? The article selects three public consultation activities on real estate (cultural relics) evaluation carried out...

Nowadays more and more companies are using cellphone message to verify users’ identities. However, because there is no data encryption in global system for mobile communications (GSM) short message service (SMS), the being sent message is easily to be listened during transmission and your identity could...

Urinary calculi shall afflict people for decades. People invented many devices for treatment of calculi. Extracorporeal shock wave lithotripsy because of its relative safety, less trauma, low cost, good treatment effect, has soon become a preferred method in the treatment of urinary calculi. With the...

The condenser of freeze-dryer is used to capture the water vapor from the drying chamber. A common problem of the condenser is that the frost is non-uniform and prone to "ice plugs". This paper studies the condenser of large food freeze-drying equipment, the structure of the condenser shell is changed...

Electron beam rapid prototyping has the advantages of high efficiency, various processing materials, non-pollution and flexible control, and it is the main trend of mental materials rapid prototyping. However, as electron beam rapid prototyping technology starts lately and develops poorly, some problems,...

Since CMS is not fully utilized, e-earning environments within a CMS should consider students’ diversity in terms of met cognitive ability, learning styles, prior knowledge, cultures, and so on. The application of CMS can provide new opportunities to diversify instructional support. Extensive training...

Reasonable choice of modern portfolio model is a decisive step when making strategy during the investing in capital market or money market. In this paper, the Markowitz Model and Single-Index Model are selected for comparison to show which one could provide better performance. Meanwhile, the Capital...

Case study shows that there is a defect in"2-4" model which will limits its application. The defect is the module of unsafe act is not classified. The classification method of unsafe act is proposed by means of feature and characteristics of unsafe act via analysis result of 201 cases of china coal mine...

Folk art modeling is an independent visual symbol system and it is developed on the basis of primitive art, with the original characteristics of human thinking. Folk art is deeply influenced by folk-custom consciousness and psychological restriction. It adopts the expressive ideas of free expression,...

Ecological clothing design has become the main topic of clothing design industry. With ecological design concept penetrating to all the aspects of society life, the clothing industry is also developing ecological clothing under the influence of this concept. Through the interpretation of ecological design...

In the era of the Covid-19 pandemic, there are limitations to being able to leave the house, and there are regulations to keep one another at a distance. Redball Taman Palem makes a communication strategy by creating content through Instagram and YouTube. Educational content and promos are uploaded the...

The traditional vertical axis wind turbine will produce a part of mechanical loss because of the transmission system between the wind wheel and generator, resulting the reduction of the wind energy utilization rate of the wind turbine. This paper proposes a new design method for off-grid small vertical...

Through calculation of the finite element software, we can get the thin wall’s stress state during normal working. To constrain the displacement and improve the crack resistance of the wall width direction by the two ways of bonded and non-bonded prestressed concrete application form. Explore the working...

The Republic of China was a period of high incidence of cholera epidemic in Chinese history. Ningbo, a city located in the southeast coast of China, was also affected by cholera all the year round in the 1930s and 1940s. This paper purposes to use the local historical data of Ningbo to explore the epidemic...

Research on weight problem is helpful to solve other problems, and it has practical significance for the design of the algorithm and the solution of the real life. The purpose of this paper is to introduce the solution for the weight problem with both greedy algorithm and dynamic programming. We mainly...

With the increasing popularity of smart mobile devices and the rapid development of mobile Internet, which provides mobile users with a broader platform for the behavior. The rich data connotation provides favorable conditions for more accurate user behavior analysis. Based on the behavior of mobile...

This study is based on the theory of metacognitive strategies and English reading anxiety. In order to get the values of students’ English reading anxiety and metacognitive strategies, we use Saito’s Foreign Language Reading Anxiety Scale and Yin Xiaojuan’s modified version as the tools, and the English...

Through the analysis of the Putaohua oil layer of Xingnan area’s geological information, sums up the fault form in section and the main form in the plane. Analyze the influence of different fracture dense belt for oil and gas migration and enrichment of sand body ,and controlling action on hydrocarbon...

In order to improve the ultrasonic test penetration in the concrete members, a kind of high-power ultrasonic pulser-receiver was designed. With the instantaneous high-voltage pulse by capacitor of charging and discharging, the transformed voltage can reach a peak of 800v. A specific receiver was designed...

This paper examines the problem of recognition of col-ored objects for the NAO humanoid robot using camer-as. Based on the ability of fuzzy systems to approxi-mate any mapping, the input-output behavior between the triplet {H, S, V} and the linguistic output colors is represented by a Sugeno fuzzy system....

In the era of big data, it is an important means to building user portraits and helping enterprises to implement precise marketing through comprehensive analysis of multidimensional data. Aiming at the problem of lacking detailed mining analysis and one-sided user attribute analysis, a method for modeling...