This chapter introduces industrial electronics. It covers some of the key developments and includes definitions for a few of the major terms, It also discusses the skills and knowledge the industrial technician must have to work efficiently. Finally, it introduces safety, which is of paramount importance for those preparing to work in the industrial environment.
This book describes how to design, specify, and apply power semiconductor converters. The reader learns to analyze converter characteristics in order to understand how these converters interact with the electric utility grid and with the load in various applications
People used to download music for free; then Steve Jobs convinced them to pay for it. How? By charging 99 cents. Prada and other luxury stores stock a few obscenely expensive items - just to make the rest of their inventory seem like a bargain. Why do text messages cost money, while emails are free? Why do jars of peanut butter keep getting smaller in order to keep the price the 'same'? The ans…
With the growing population in the Southern States, the increase of mulattoes has been very great. Society does not frown upon the man who sits with his half-white child upon his knee whilst the mother stands, a slave, behind his chair. In nearly all the cities and towns of the Slave States, the real negro, or clear black, does not amount to more than one in four of the slave population. T…
I do not know where Ballymulligan is, and never knew anybody who did. Once I asked the Mulligan the question, when that chieftain assumed a look of dignity so ferocious, and spoke of "Saxon curiawsitee" in a tone of such evident displeasure, that, as after all it can matter very little to me whereabouts lies the Celtic principality in question, I have never pressed the inquiry any farther…
In response to Carnacki's usual card of invitation to have dinner and listen to a story, I arrived promptly at 427, Cheyne Walk, to find the three others who were always invited to these happy little times, there before me. Five minutes later, Carnacki, Arkright, Jessop, Taylor, and I were all engaged in the "pleasant occupation" of dining. "You've not been long away, this time," I remarke…
''Everyone who thinks Vianney is already well known will find not simply new information, but what has new meaning for each discoverer. That meaning may well differ for each reader. The descriptions of the Cure's encounters with Satan and ''his lesser angels'' and of the hours in the confessional were my own personal crucial rediscoveries. The retreat by Pope John Paul II given at Ars is an ext…
Little Tookhees the wood mouse, the 'Fraid One, as Simmo calls him, always makes two appearances when you squeak to bring him out. First, after much peeking, he runs out of his tunnel; sits up once on his hind legs; rubs his eyes with his paws; looks up for the owl, and behind him for the fox, and straight ahead at the tent where the man lives; then he dives back headlong into his tunnel …
Detective stories in which the great Thomas Carnacki investigates the supernatural using scientific tools, such as photography, and tools that are augmented by theories of the supernatural, such as the electric pentacle, which uses vacuum tubes to repel supernatural forces.