Introducing programmable logic devices in physics laboratories: a practical guide for the implementation of experiments

study of cohesive devices in the textbook of english for the students of apsychology by rastegarpour

this study investigates the cohesive devices used in the textbook of english for the students of psychology. the research questions and hypotheses in the present study are based on what frequency and distribution of grammatical and lexical cohesive devices are. then, to answer the questions all grammatical and lexical cohesive devices in reading comprehension passages from 6 units of 21units th...

Implementation of Digital Filters in Programmable Logic Devices

Recent strides in programmable logic density, speed and hardware description languages (HDL’s) have empowered the engineer with the ability to implement digital signal processing (DSP) functionality within programmable logic devices (PLD’s or FPGA’s). This paper, written for the intermediate DSP engineer or logic designer, begins with an overview of general DSP concepts. Filter design principle...

Programmable logic devices

Advances in programmable logic devices' architectures are making PLDs suitable for a plethora of applications. The devices now find use in state machines and other highly sequential circuits. In the past two years, bipolar PLD operating speeds have doubled, and emerging CMOS PLDs offer four times the circuitry per chip than the older bipolar versions offered. CMOS PLDs also offer lower operatin...

Programmable Logic Devices

A rule-based evaluation of ladder logic diagram and timed petri nets for programmable logic controllers

This paper describes an evaluation through a case study by measuring a rule-based approach, which proposed for ladder logic diagrams and Petri nets. In the beginning, programmable logic controllers were widely designed by ladder logic diagrams. When complexity and functionality of manufacturing systems increases, developing their software is becoming more difficult. Thus, Petri nets as a high l...