The application of the sliding-mode control theory to the regulation of dc-to-dc switching converters is reviewed. Subsequently, linear dynamical models are derived and compensating networks are designed. An analog integrated circuit illustrating the theory has been designed, implemented and applied to regulate a buck converter in continuous conduction mode. Experimental verifications are provi...

Trustworthy system development entails a high nonrecurring engineering (NRE) cost together with a low volume of units over which to amortize that cost. For example, the potential for developmental and operational attacks against hardware requires countermeasures that make it very expensive to design and manufacture custom hardware used to build high assurance systems. To address these problems,...

A broader, more comprehensive concept of forest pest management is needed to make it a really integral part of forest resource management. A generalized model structure of a forest pest management system is presented, and the major components are discussed briefly. Predictive models are the primary mechanism of information flow to decision and action in the system. General considerations affect...

Fuzzy controllers have been proven to be universal, that is, they can provide any control surface [1]. Their microelectronic implementation is very suitable to achieve high-speed (real-time operation), and low area and power consumption. This paper focuses on discussing the two basic approaches that can be employed to design programmable universal controller integrated circuits. Analog, mixed-s...

Lager is an integrated CAD system for algorithmspecific IC design. It consists of a behavioral mapper and a silicon assembler. To generate a chip from a behavioral description, the user specifies both the behavioral description and a parameterized structural description. The behavioral mapper maps the behavior onto the parameterized structure to produce microcode and parameter values. The silic...

MViews is a new approach to building Integrated Software Development Environments (ISDEs). Graph-based representations of software system data, and multiple views of this data, are kept consistent via graph components responding to descriptions of changes made to other components. This technique supports integrated, bi-directionally consistent graphical (interactively-edited) and textual (free-...

field experiments were conducted in amirkabir sugarcane agro-industry (khuzestan province, iran) farms to evaluate the efficacy of integrated chemical and mechanical methods in controlling weeds. experiments were carried out in a split plot-randomized complete blocks design with four replications. the main plot consisted of four mechanical treatments, namely: hilling up, sweep cultivator, disc ...