The publication of Vannevar Bush’s seminal paper, As we may think, in 1945 was closely followed by the invention of the electronic digital computer in 1948. In the following 50 years much of Bush’s vision has been realised by computer scientists. We can store vast amounts of data including speech and video in computers, and we can transmit them over networks. We can annotate the material with e...

this study proposes a combination of a fuzzy sliding mode controller (fsmc) with integral-proportion-derivative switching surface based superconducting magnetic energy storage (smes) and pid tuned by a multi-objective optimization algorithm to solve the load frequency control in power systems. the goal of design is to improve the dynamic response of power systems after load demand changes. in t...

CAN bus will be increasingly used in wide range of applications for its superiority, but it couldn’t communicate with computer directly. The article describes the design of RS232 and CAN bus protocol converter depending on PIC Microcontroller, which solves the problem that CAN networks can not directly communicate with PC. At present, single-chip microcomputer of 51 series with CAN controller S...

The paper describes the use of Matlab’s Parallel Computing Toolbox for parallel genetic algorithm-based design of a MIMO controller. Parallel genetic algorithms (PGA) represents a stochastic optimization approach which is computed in more co-operating and interconnected computation nodes in a parallel mode. Each node of the PGA can be located on the same processor, on more processors or on more...

We present an approach to design an improved control system for arbitrary urban traffic networks based on Organic Computing concepts. For control of these networks a decentralized structure consisting of small computers at every node of the net is proposed. Each node is viewed as an autonomous agent with limited sensory horizon. It tries to adapt itself such that the local traffic throughput is...

This work presents the analysis of radiated EMI problems associated with DC-DC buck converters and the solutions for minimize the reverse recovery of the Drain-Bulk diode of the synchronous switching MOSFET. The DC-DC buck converter topology is used in computers and telecom applications because of its high power efficiency and multiple DC levels. For reducing the reverse recovery and its relate...

Based on the study of HLA (High Level Architecture) and OPNET-HLA interface, the dynamic control of simulation process and the real-time update of simulation for LEO (Low-Earth-Orbit) satellite communication system were achieved on multiple computers. In the distributed interactive simulation, a satellite’s location is controlled, then the end-to-end delay time and the routing table of Iridium ...

A design of a compact and low-cost programmable high-voltage pulser for a linear piezo-stepper motor, using an 8 bit reduce instruction set computers (RISC) microcontroller, a high-voltage complementary metal oxide semiconductor (HVCMOS) converter, and an adjustable three-terminal high-voltage regulator is presented. The design consists of 12 independent digital channels of high-voltage output ...

the potential of computers to support learning and teaching m almost all subject areas is now widely accepted. at ail levels of education computers aid teachers to enrich their learning/teaching environment. in the field of language education, especially english as a second/foreign language (esl/efl) computer-assisted learning has acted as an indirect boost to enhance language proficiency. whil...

HIMAC, Heavy Ion Medical Accelerator in Chiba, has been in operation for about 8 years. The control system of HIMAC synchrotron is now undergoing renewal and upgrade. As a medical accelerator in use, reliability and availability of the beam must not be compromised in HIMAC. We decided to change most computers of the system in a node-by-node way, over a couple of years. Among the replaced are: P...