The Mach 3.0 multi-server system decomposes the functionality of the operating system between a micro-kernel, a set of system servers running in user-mode and an emulation library executing in the address space of applications. The interfaces provided by the system servers are objectoriented and both the servers and the emulation library are written in an object-oriented language. In this paper...

The high penetration of renewable energy resources has made it harder to secure a flexible power system. Accordingly, this has become an issue in operating power systems. As a possible solution, pumped hydroelectric energy storage (PHES) has received much attention because of its fast start-up and ramp characteristics. This study proposes a flexibility-based reserve scheduling method for PHES. ...

Information System (IS) flexibility has been regarded as an important indicator of information technology success. This article provides a model of IS flexibility encompassing all stages of IS implementation and usage. The model considers the cognitive factors from IS staff and users as important leveraging IS flexibility with adaptation activities. A review of constructs extending from the int...

Traditional manufacturing has relied on dedicated mass-production systems to achieve high production volumes at low costs. As living standards improve and the demands for new consumer goods rise, manufacturing flexibility gains prominence as a strategic tool for rapidly changing markets. Flexibility, however, cannot be properly incorporated in the decision-making process if it is not well defin...

Abslrucl-Existing distributed systems vary from those which merely provide interconnection of autonomous systems to those which provide a complete language environment for writing distributed programs. The former tend to support flexibility and provide ready access to system facilities, but suffer by being complex to use. Language environments are simpler to use and can provide safer environmen...

More than 98 percent of the worldwide annual production of microprocessors ends up in embedded systems – typically employed in goods of mass production, like cars, appliances, or toys. Such embedded systems are subject to an enormous hardware-cost pressure. System software for this domain has to cope not only with a broad variety of requirements and platforms, but especially with strict resourc...

Objectives This study aimed to evaluate the discriminant validity of family adaptability and cohesion evaluation subscales. We investigated families referring to counseling, family courts, substance dependence treatment centers, and healthy and clinically defined cutoff scores for the breakdown of healthy Iranian families.  Methods This scale was validated by four psychologists and translated ...

We show how an object-oriented system-and in particular the Oberon System-can be used to write software that is extensible by end users even while the software is running. Extensibility instead of completeness may be a way out of the unpleasant situation in software industry where applications still tend to become bigger every year. Oberon is both an object-oriented programming language and an ...

ions seem to be simultaneously the principal goal and bane of modern computer science[20]. This is particularly true in modern systems in which the system software stack has become a monumental tower of babel. At its foundation we have the virtualization engine or hypervisor, multiplexing system resources between multiple logical partitions. Each of these logical partitions is running an operat...

internet is one of the most promising future energy infrastructures which could enhance energy efficiency and improve system operating flexibility. In analog to the micro-grid, micro energy internet puts more emphasis on distribution level and consumer side. The concept and design principles of smart micro energy internet are proposed to accommodate micro-grids, distributed poly-generation syst...