Lines Of Power Meaning
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Understanding Broadband over Power Line
Understanding Broadband over Power Line explores all aspects of the emerging technology that enables electric utilities to provide support for high-speed data communications via their power infrastructure. This book examines the two methods used to connect consumers and businesses to the Internet through the utility infrastructure: the existing ele
Powers and Compensation in Circuits with Nonsinusoidal Current
Author: Leszek Czarnecki
language: en
Publisher: Oxford University Press
Release Date: 2025-07-10
Powers and compensation in circuits with nonsinusoidal currents discusses one of the most controversial problems in electrical engineering; the definitions of electrical powers and compensation. Many approaches to explain the power properties of electrical circuits and their compensation has occurred over a vast number of publications and referred to as the “schools of power theory (PT)”. These debates have caused substantial confusion in the electrical engineering community. The development of the Current's Physical Components (CPC)-based power theory by the author of this book was a major contribution to the debate on powers and compensation. This book explains all the power-related physical phenomena in electrical circuits and creates fundamentals for compensation in circuits of any complexity with linear and nonlinear loads in single- and three-phase circuits using reactance, switching and hybrid compensators in terms of CPC-power based theory. It also discusses some common misinterpretations of power related phenomena. This book was written as a 'by-product' of more than 30 years of teaching at Louisiana State University of undergraduate and graduate courses on powers and compensation and supervising the development of graduate Msc. theses and Ph.D. dissertations. Therefore, this book can serve as a major reference for teaching power courses and for those involved in studies on powers and compensation in circuits with nonsinusoidal currents.
Plato's Theaetetus as a Second Apology
Zina Giannopoulou argues that Theaetetus—Plato's most systematic examination of knowledge—is a philosophically sophisticated elaboration of Apology that successfully differentiates Socrates from the sophists. In Apology Socrates defends his philosophical activity partly by distinguishing it from sophistic practices, and in Theaetetus he enacts this distinction: the self-proclaimed ignorant and pious Socrates of Apology poses as the barren practitioner of midwifery, an art that enjoys divine support, and helps his pregnant interlocutor to engender his ideas. Whereas sophistic expertise fills others' souls with items of dubious epistemic quality, Socratic midwifery removes, tests, and discards falsities. In Theaetetus Plato drapes the Socrates of Apology with obstetric garb and stages a philosophical contest between him and the seemingly wise men with whose definitions Theaetetus' soul teems, chief among whom is Protagoras. By proving the indefensibility of these definitions, Socrates challenges their authors' wisdom—since for him no one can justifiably be said to have knowledge if he cannot give an account of knowledge. On the other hand, his own inability to procure the definition he seeks confirms his assertion that he lacks wisdom. Giannopoulou goes on to explore how in Apology Socrates claims that his wisdom consists in his awareness of his lack of wisdom, and in Theaetetus he validates this claim: his attempt to discover what knowledge is, coupled with his intellectual barrenness, shows both that he does not have what he is looking for and why this is the case.