The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
With the development of science and technology, the competition of situation in the market has become more and more fierce. The risk is everywhere. How to reduce risk, avoid risk, minimize risk of the project, is the urgent business, and in the current complicated situation, Cobb-Douglas production function as a mathematical model of the economy, because of its variable value of uncertainty, the economic...
This paper synthesizes the existing superior teaching methods and combines the new facts in the Internet environment, summarizing the new teaching methods model of MIS under Internet environment for non-computer professionals, which is capable to overcome the insufficiency and non-systemic in the existing teaching methods of MIS, as well as enhancing the teaching and learning effects. The basic methods...
In order to recognize and understand increasingly flourishing e-commerce, it is necessary to have a right understanding about the essence of e-commerce. Under the circumstances, the e-commerce activities are base on the world-wide unified Internet, which determines that effective transmission of the e-commerce information is the critical foundation of the e-commerce. Traditional and static or semi-static...
In this paper, an important problem that the security of e-commerce system has become one of the core issues and the main bottlenecks which constraints the development of e-commerce is pointed out; the demand of an e-commerce system security and the realizing process of an e-signature technology as the essential key technology in the safety control are elaborated; the insufficiency in current e-signature...
At present the problems that people want to solve anxiously are: facing the huge information data pool, how to carry on the effective data mining; in the highly dynamic information source which is the standard to the importance of the information and the degree paid attention to, how to seek the ldquofocusrdquo (namely focus information) from the society, the economy, the life in different time and...
In this paper, a representative algorithm convex hull with half-dividing and recurrence is commented; and according to the isomorphic fundamental theorem of the convex hull construction, a more efficient new algorithm to find a convex hull based on the dynamical base line with a maximum pitch of the dynamical base line is given. The general characters of the new algorithm are: 1) find out the outside-most...
The effects of polyaspartate protease fertilizer enhancer, made from oyster shell proteins, on the absorption of soil nutrition and the enzymatic activities of crops were studied. It has been found that the enhancer contributes 30%, 50% and 50% augmentation of nitrogen (N), phosphate (P) and potassium (K) absorption respectively and about 20% of nitrate reductase and peroxide enzyme activities of...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.