Mannheim, Germany (PRWEB) April 05, 2012
ScienceIndex.com is a Web 2.0 sciences social network established in 1998 to index the very latest news, headlines, references and resources from science journals, books and websites worldwide. The site covers news in all fields of biology, business, chemistry, engineering, geography, health, mathematics and society. In the field of Engineering Sciences, the site has now included the two new categories Control Systems Engineering and Electronics Engineering. While the Control Systems Engineering category covers systems in which outputs are forced to change in a desired manner during time, the Electronics Engineering category covers manipulation of voltages and electric currents by using devices.
ScienceIndex.com's Engineering Sciences Category covers the design, manufacture, and operation of efficient and economical structures, machines, processes, and systems. Its eight subsections include Architecture, Chemical Engineering, Civil Engineering, Communication, Control Systems, Electronics, Industrial Engineering and Mechanical Engineering. Users can receive alerts if new content has been posted in this category by subscribing to ScienceIndex.com's Engineering Sciences RSS feed.
ScienceIndex.com's Control Systems Engineering Sciences category covers systems in which outputs are forced to change in a desired manner during time. It currently contains over 3,600 articles partly derived from nearly 40 scientific journals. The latest articles in this category are also available through a Control Systems Engineering Sciences RSS feed. One of the latest additions covers ship roll damping control. While the technical feasibility of roll motion control devices has been amply demonstrated for over hundred years, performance can still fall short of expectations because of difficulties associated with control system designs. The authors present an account of the development of various ship roll motion control systems together with the challenges associated with their design. It discusses the assessment of performance and the applicability of different mathematical models, and it surveys the control methods that have been implemented and validated with full scale experiments. Another recently published article provides an algebraic approach to analysis and control of general logical networks. The authors survey a recently developed technique, called the algebraic approach, based on semi-tensor product and provides a comprehensive introduction to the new technique.
ScienceIndex.com's Electronics Engineering Sciences category covers manipulation of voltages and electric currents by using devices. It currently contains over 9,000 articles partly derived from almost 50 scientific journals. The latest articles in this category are also available through a Electronics Engineering Sciences RSS feed. One recently included article in this category states that the Method of Images poses an important difficulty when used to solve the problem of a charge in the presence of a grounded conducting sphere. The authors demonstrate that the thinner the wire, the lower will be its total charge, and the closer will be the calculated charge density at the surface of the sphere to the conventional solution by the Method of Images. Another article presents a new linear piezoelectric actuator for linear translation. The positioning stage driven by the actuator has a very simple and compact structure consisting of a linear guide and the linear piezoelectric actuator.
ScienceIndex.com currently contains nearly 1.43 million stories distributed among 75 categories. 75,553 users monitor nearly 8,400 journals covering the broad spectrum of sciences. They share circa 2,500 new articles every day. Since new science content is discovered in real-time, the delay between original publication and appearance at ScienceIndex.com is no more than two days. ScienceIndex.com provides an advanced search feature which suggests up to ten closely related articles for a search and also for a selected story. Other features include a "Life Traffic Feed", a "Top Content" sidebar, Google Translate functionality, and RSS feeds for every category. ScienceIndex.com also maintains the new Twitter account @ScienceIndex_.