Control can be defined as keeping a physical variable (pressure, temperature, level, flow etc.) as constant as possible by measuring instantaneous value of physical variable, comparing it with the desired value and using the difference to make a correction which reduces this difference. It may include everything from a process control computer and then the control components: the switches, stepping motors, solenoids, and sensors. Programmable Logic Controller (PLC) is used in Industries from last twenty yeas. This is a very flexible controlling device, can be used in every type of industries...
Control can be defined as keeping a physical variable (pressure, temperature, level, flow etc.) as constant as possible by measuring instantaneous val...
A glimpse into the inner lives of psychiatrist Dr Ahmed's patients in the melting pot of outer Sydney. The stories vary from closet gay Muslims, to health food fundamentalists. It is an account of the modern condition viewed through the microcosm of the consulting room. Funny, insightful, heartbreaking and inspiring, this gripping book will entertain and challenge.
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A terrific book here full of insight, information and highly interesting people...gives the book a warm and beating heart. This is a very important book...an insight into the...
A glimpse into the inner lives of psychiatrist Dr Ahmed's patients in the melting pot of outer Sydney. The stories vary from closet gay Muslims, to...
