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.
Progresses in the study of speciation and biological uptake of arsenic in soil are introduced. The researches on bioavailability of arsenic are summarized, and the main factors which affect arsenic bioavailability are emphatically discussed. Relationship between speciation and availability of arsenic is concluded and the concerned problems and future development orientation are pointed out.
Archives of computer-mediated communication (CMC) could be valuable organizational resources. This paper describes an automatic approach that facilitates users' integrated understanding of discussion and behavior of CMC participants. In the presented parallel learning framework the global population is divided into some subpopulations, each assigned to a distinct processor. Each subpopulation consists...
The energy-saving effect of Y/Δ change-over controller is better than the silicon controlled rectifier(SCR) voltage regulating style when the load rate of oil-pumping unit is low; but the silicon controlled rectifier(SCR) voltage regulating style is better than the energy-saving effect of Y/Δ change-over controller when the load rate of oil-pumping unit is high. Based on high-precision three-phase...
Network attack increase day by day, which makes security defense become more and more important. In allusion to the deficiency of the existing defense software, an intelligent defense software (ISDS) is designed and its extended framework is put forward. The ISDS apperceives the environment and makes decision through self-decision system, which makes itself "know" how to adapt the circumstance...
The existing security defensive systems, which have limitations in many ways, can not adapt to the need of future network defense. In allusion to the problem, an intelligent security defensive software is designed. It has intelligent functions such as environment awareness, self-adaptation, dynamic reconstruction, and so on. Besides, the general realization methods are proposed herein.
Information and communication technologies are considered as a potential catalyst for socioeconomic development in undeveloped regions. It is present the criteria for a good digital library in undeveloped regions, and we describe the XSL-CDL framework developed to construct digital libraries from a pool of Web services-based components. We have proposed a model of a digital library for undeveloped...
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.