We explain the raison d’être and basic ideas of input/output logic, sketching the central elements with pointers to other publications for detailed developments. The motivation comes from the logic of norms. Unconstrained input/output operations are straightforward to define, with relatively simple behaviour, but ignore the subtleties of contraryto-duty norms. To deal with these more sensitivel...

The memory plates can be used with con ventional 2-to-1 current -coincidence drive. This is particularly suitable for compact, lower power consuming, transistor driven, memories of relatively small capacity. A new method is proposed of driving memories particularly suitable for plates. The memory plates are driven by an end-on switch itself made of plates. The switch operates in a set-a-line an...

Since less than 1 percent of world waters are potable, minimizing water consumption is a significant issue. The aim of this study is to present a suitable algorithm for optimization of water consumption in water pinch analysis. In this regard, the results of computer algorithm are verified by the results of previous studies. As a case study, dissolved solid pollutants are taken into considerati...

up to three decades ago, economic statistics could systematically meet the statistical needs and economic views quantitative analyses requirements (known as growth – centered views) in the framework of national accounts and input-output tables. however, owing to the insensitivity of these views to simultaneous survey of socio-economic issues, no attention has been paid to systematizing social s...

This study was conducted to investigate the effect of meaning-focused versus form-focused input-oriented and output-oriented task-based instruction on elementary level Iranian EFL Learners’ vocabulary comprehension and recall. For this purpose, a sample of 120 male students from a private school in Tehran was selected through convenience sampling and based on availability. The participants were...

This paper presents the analysin ,design and implementation of a high voltage ratio topology of DC-DC converter. The DC-DC converter has high voltage ratio with reduced input current, output voltage and output current ripple, and also reduces the voltage and current rating of power electronics components and compared with conventional boost converter. The voltage stress on the switches are  red...

During the last years, the concept of input congestion and technical ineff-ciency in data envelopment analysis (DEA), have been investigated by manyresearchers. The motivation of this paper is to present models which obtain thedecreased output value due to input congestion and technical ineciency. More-over, we extend the models to estimate input congestion, technical ineciencyand output reduct...