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Dielectric barrier discharge (DBD) excimer lamps emit vacuum-UV optical radiation. This work presents novel methods for efficiently operating DBDs with short, high-voltage pulses. Transformer-less systems utilising SiC power semiconductor switches are presented. Pulse frequencies of up to 3.1 MHz and peak inverter efficiencies of 92 % were achieved. The work encloses both mathematical backgrounds of pulsed resonant circuits and practical implementation of low-inductive power stages.

low inductance --- high frequency --- high voltage --- Silicon Carbide --- gate drive

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Advances in Motivation Science, Volume Six, the latest release in Elsevier's serial on the topic of motivation science, presents articles on a variety of topics, including Motivation, Emotion, Cognition, and Communication: Definitions and Notes toward a Grand Theory, Motivation in the Service of Allostasis: The Role of anterior Mid Cingulate, Climatic Ignition of Motivation, My Journey to the Attribution Fields, Inspiration as optimal motivation: From ancient theory to contemporary science, The development of self-determination theory: The emergence of SDT's six mini theories and their validation, and more. The advent of the cognitive revolution in the 1960 and 70s eclipsed the emphasis on motivation to a large extent, but in the past two decades motivation has returned en force. Today, motivational analyses of affect, cognition and behavior are ubiquitous across psychological literatures and disciplines. This series brings together internationally recognized experts who focus on cutting-edge theoretical and empirical contributions in this important area of psychology.--Publisher's description.

Motivation. --- Motivation (Psychology) --- Action, Psychology of --- Drive (Psychology) --- Psychology of action --- Psychology

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Tribology, the science of friction, wear and lubrication, is one of the cornerstones of engineering's quest for efficiency and conservation of resources. Tribology and dynamics of engine and powertrain: fundamentals, applications and future trends provides an authoritative and comprehensive overview of the disciplines of dynamics and tribology using a multi-physics and multi-scale approach to improve automotive engine and powertrain technology.Part one reviews the fundamental aspects of the physics of motion, particularly the multi-body approach to multi-physics, multi-scale problem so

Tribology. --- Engines. --- Automobiles --- Power trains. --- Power trains, Automobile --- Power transmission --- Machinery --- Friction --- Surfaces (Technology) --- Drive trains

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"If you want to accomplish what's important to you, discipline and willpower won't get you where you need to go. In this iconoclastic new book, Susan Fowler reveals compelling insights and actions to help you master and maintain your motivation. Motivation is at the heart of everything you do and everything you want to do but don't. Unfortunately, the ways we typically motivate ourselves don't work. Relying on sheer determination eventually becomes exhausting--it's not sustainable. And even setting goals can backfire--if you're not setting them for the right reasons. Susan Fowler says motivation is energy, and what matters is the quality, not the quantity. Traditional "motivators" such as fear, guilt, or the promise of a reward provide low-quality, short-term energy. Drawing on the latest empirical research, she proves that high-quality, optimal motivation is a skill that you can learn and apply. Science tells us that satisfying three basic needs--for choice, connection, and competence--is essential to optimal motivation. You need to feel like you've picked your path, not that you're being driven down it. Your goal should be linked to people or a purpose meaningful to you. And you want to continually learn and grow. Through practical exercises and eye-opening stories, Fowler shows you how to identify and shift the quality of your motivation. The skill to master your motivation is important--it may be your greatest opportunity to evolve, grow in wisdom, and be the light the world so desperately needs"-- "If you want to accomplish what's important to you, discipline and willpower won't get you where you need to go. In this iconoclastic new book, Susan Fowler reveals compelling insights and actions to help you master and maintain your motivation"--

Motivation (Psychology) --- E-books --- Action, Psychology of --- Drive (Psychology) --- Psychology of action --- Psychology

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Motivation (Psychology) --- Action, Psychology of --- Drive (Psychology) --- Psychology of action --- Psychology