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This paper proposed a hierarchical service overlay network framework (HSON) based on the analysis of advantages and disadvantages of the present service composition network framework and the characteristics of service composition applications, and studied service composition mechanism based on HSON.....

In order to improve the performance of propeller the propeller efficiency optimization method under the off-designed conditions were studied. Taking the open water efficiency around the designed velocity of parent propeller as the objective function, taking the radial distribution of pitch ratio as the...

With the unceasing development of national economy and science and technology, wireless data transmission is extensive used in many areas, basing on its characteristic of flexible and so on. Based on the SMS of GSM net, this article introduce an intelligentized surveillance system which is used for controlling...

In order to enlarge the application scope of the existing criteria for the heat transfer deterioration, the criteria of heat transfer deterioration was assessed by using the method of mechanism analysis and experimental data available in the literature. The obtained results indicated that the criteria...

In the era of information globalization, mobile devices have been integrated into our work, study and life. After the global outbreak of the new crown epidemic in 2020, mobile-assisted Chinese teaching has become an important way for the development of international Chinese education, and mobile-assisted...

Net present value (NPV) and internal rate of return (IRR) are two popular capital budgeting techniques in the modern economy. Almost all finance textbooks included these two concepts. The paper presents a review of NPV and IRR from the following perspectives and aims to provide a general understanding...

Based on posterior probability of support vector machine, the analysis of dissolved gases in oil and the data of electrical tests are used comprehensively to recognize internal fault positions of the power transformer. This method not only inherits the advantages of the support vector machine for small...

The hydrogel is a three-dimensional reticular polymer with high water content, which was used in various fields such as medicine, biology and environmental protection. However, the characteristic of lower mechanical properties limited its application. Therefore, the improvement of the mechanical strength...

The Internet of things is the key strategic application in the twelfth Five-Year plan of emerging technology industries in China. This paper introduces the basic concepts of Internet of things, proposes a three-layer model development platform based on the International Telecommunication Union (ITU)...

Given the importance of image quality evaluation in the field of image acquisition and processing, and for the most commonly used method for objective evaluation and subjective evaluation method in the limitations of practical application, this paper presents a comprehensive image quality evaluation...

This paper addresses a model reference adaptive controller which has simpler structure, fewer adjustable parameters, easier operation and accurate tracking capability even in the presence of external disturbances and uncertainties. The controller is applied into the perforated mill automatic speed control...

Knowledge mining based on ship instances information has an important support role for ship design. In order to obtain easy to use knowledge from ship design instances composed of natural language text, this paper proposes an empirical case knowledge mining method for ship design domain. The method uses...

View maintenance is a hot topic in database. But unlike database view, the knowledge view of knowledge management system has its particularity. The knowledge view is a cache of knowledge item that can be access quickly. Based on rough set, this paper proposes an approach of constructing knowledge view....

In the flotation of copper - lead - zinc polymetallic sulfide ores, flotation separations of those valuable minerals have been a difficult problem due to their finely-associated intergrowth and similar flotability of these sulfide minerals. This paper summarizes the research status and progress of mineral...

According to the mineralogy of the polymetallic ore the process of preferential flotation of copper was adopted, and the separation of lead, zinc and sulfur were carried out and implemented Four products, including copper concentrate assaying 22.67% Cu at a recovery of 91.77%, lead concentrate assaying...

In view of the fact that the parameters can not be fully identified, which is frequently occurred in real adaptive parameter identification, this paper makes a deep analysis and studies the effect of the adaptive control law on the situation that parameter is not fully identified. In order to simplify...

With the proposition of the "Internet +" concept, "Internet +" has already become a big trend while both the central government and local sectors are promoting the rapid development of the Internet industry. How can the library grasp the opportunity and use the network environment to transform the service...

With the rapid development of Internet and computer technology, modern education based on the Internet as main means has become the trend of the development of the education today. Although the domestic English testing system gains more and more attention but most universities and colleges’ equipment...

With the method of modal analysis, the full Jacobian according to the power system power flow equations is studied and a method to identify the suitable bus for loading shedding is proposed in this paper. The proposed method makes use of the participation factors corresponding to the active power, by...

Determination of the location where the shunt reactive power compensation devices is important for the enhancement of the power system voltage stability and the decreasing of power losses. With the method of modal analysis, this paper adopts bus voltage participation factors to solve this problem. In...

The tourism industry around the world including Indonesia is facing significant challenges due to the COVID-19 pandemic. The declining number of tourists and the number of tourist sites that had to be closed during the pandemic were the major factors why the tourism industry had become so volatile over...

To avoid the disadvantages of the traditional video surveillance, such as short distance transmission and one-way flow of analog signals, a modified visual monitoring platform was developed by the power line carrier communication and the senior multimedia technology in this work. The platform made from...

With the reform of education system in China, quality education and cultivation of innovative talents have become an important direction of education in our country. With innovation consciousness and innovation ability of high quality talent is the country's need, the University in such a large environment,...

With its basis on discrete points, pressure nephogram is widely used in safety supervision of coal mine. This essay, with the analysis of the problem of the missing "triangular" in the Bowyer-Watson's algorithm, studies and designs a points-adjacent vertex-triangular-based triangulated algorithm, whose...

In the era of knowledge economy, knowledge management has been recognized as an important means to enhance the competitiveness of enterprises, and the access control of enterprise knowledge is a main mechanism of information system security. In this article, through analyzing the type of enterprise knowledge,...

With the rapid development of the campus network date and high-availability, security requirements, the data backup and disaster recovery technology has been widely used, and this technology has become a key aspect of campus IT infrastructure. This paper analyzed the date backup technology, and proposed...

Value investment requires investors to hold the suitable company stock at the right price to achieve a certain profit purpose. Scholars all over the world are enthusiastic about studying it. In this study, linear regression was used as the primary method and use P/E, P/B, ROE, ROA, EPS, debt-to-asset...

Brine water based drilling fluids have advantages on protecting reservoir and stabilizing well hole, meanwhile, it also have some defects such as low lubricity and strong corrosivity, especially the low lubricity have already become an important problem demanding prompt solution. Focusing on the problem,...

It is difficult for end users to configure security models in operation system without technical knowledge, since security models are defined by experts who have security experience. Indeed, there is no complete method to translate user security requirements into implementable security policies. In order...

Based on the data of the sixth nationwide census, considering the background of the implementation of the universal two-child policy, the inter-provincial population size and the inter-provincial population flow scale are predicted. According to the population data in 2010 and 2020, the evolution of...

On the condition of bit stream, for the reason of simple character sets of target strings and Pattern strings, the probability of appearance of absolutely bad character is very low. The bad character shift is not suited for pattern matching, because of it’s low efficiency. This paper gives the definition...

With the development of network information technology and multimedia technology, require Web sites with convenient, fast and efficient features, interactive website built into the current research focus. The use of interactive, resource sharing, this paper describes the development of interactive multimedia...

Networked monitoring and control system of tyre building machine is a LAN management system characterized by possessing servers and multiple clients, which are developed by LabVIEW, the virtual instrument development platform and combining with network information technologies such as TCP/IP and OPC....

The new aim of Financial Support for Education at colleges and universities is financial aid education. The development of big data technology has brought unprecedented development opportunities for accurate financial aid education in colleges and universities. We design and develop a big data-based...

The repeated movement between the piston rod and the barrel during the process of cylinder impact will lead to leak and shorten the life of the cylinder. In order to research the distribution of dynamic stress and deformation of the piston rod and the bush when the piston rod suddenly stops at the end...

In this paper, a new variable M/T method called leap variable M/T method is introduced for speed measurements by optical incremental encoders in motor servo systems. In this method, both encoder pulse and high frequency clock pulse are counted in a variable interval as conventional variable M/T method...

The exhibition logistics, which generally deal with set-up, breakdown, transport, and storage to ensure that all specific exhibition requirements are met. It is very special from traditional logistics service that its transportation distant is very short and transportation cost can almost be ignored....

Multimedia technology is to point to by computer to text, data, graphics, images, animation, sound and other media information integrated processing, the user can through a variety of sensory real-time information interaction with the computer technology. Japanese multimedia hearing system is designed...

A low power discrete cosine transform (DCT) architecture is presented. It is implemented through Loffler DCT based on the coordinate rotation digital computer (Cordic) algorithm and the canonical sign-digital (CSD) multiplier-less architecture. The synthesis results show that the proposed 8-point one-dimensional...

Sensitivity analysis is often used in investment decision-making to evaluate the risk under uncertainty. However, sensitivity analysis on the NPV method is seldom studied in the existing literature. This paper studied how sensitivity analysis could complement the NPV rules in investment decisions when...

In order to extract detailed edge information, a multi-scale fractional differential edge detection algorithm is proposed in this paper. Firstly, the G-L factional differential is applied to enhance image with two different fraction differential orders (one is small and the other is big), then, the edges...

The establishment of China–ASEAN Free Trade Area facilitates not only free trade but also financial investment. It improves the development of financial integration within the area. The financial investment is introduced into the Computable General Equilibrium Model in this article to build a multi-nations...

The paper mainly introduce the intelligent network teaching platform designed and implemented by university computer foundation course network learning platform oriented to language c # and based on NET structure, which is connected with ASP.NET technology and ADO.NET technology. This network learning...

Choosing proper earthquake ground motion parameters is important to establish a relation between strong ground motion and the earthquake damage. In this paper the statistical relationship between ten ground motion parameters and simulated mean earthquake damage indices of simplified masonry structures...

“Three far method” is an extremely important spatial layout technique in Chinese landscape painting. The space shaping of “far” contains the unique aesthetic conception of the ancients. The unique artistic conception of “lofty, secluded and diluted” is constructed by “lofty, profound and peaceful” in...

With the great-leap-forward development of credit card, risk is also showing a trend of gradual expansion. Based on pre-control methods of damage control and Visual Basic .NET, the paper designs and implements credit card risk control system to provide information means for credit card risk control....

Different from traditional forming process, sheet soft punch process uses only a rigid die and the other tool set is a flexible medium, such as natural or synthetic rubbers. Soft punch stamping process for flow channel in stainless steel bipolar plates of the proton exchange membrane fuel cell (PEMFC)...

In order to study height of overlying gas flow paths of a certain mine, Shanxi province, China, this paper studied the formation mechanism of overlying fractures induced by mining operation with the method of material mechanics, and the optimization arrangement of high-located borehole in working face...

Aimed at the bottom of the oil field water flooding, the upper for low permeability thin poor reservoirs developed blocks. If poor vertical wells encryption mining benefit, using horizontal well development of the economic benefit is remarkable. Through the establishment of three-dimensional geological...

In this paper, based on the definition of group object, the definition of action of group object on arbitrary object in a topos is given, some equivalent characterizations are also obtained.