An Experimental Investigation of Productivity Stratification and Knowledge Transfer in an Electronically Mediated Environment, Sakamoto Jachin
Автор: o?o Marcos Salvi Sakamoto Название: Laser Ultrasonics With A Fiber Optic Sensor ISBN: 3659660736 ISBN-13(EAN): 9783659660733 Издательство: LAP LAMBERT Academic Publishing Рейтинг: Цена: 9005.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание: Conventional ultrasound testing technique usually employs a piezoelectric transducer to both generate and detect ultrasonic waves to perform non-destructive inspection. However, this type of transducer presents some drawbacks as: requirement of a coupling medium, high temperatures are not supported, narrow bandwidth, low spatial resolution, load the sample, and is hard to be used in complex geometries. In contrast, the laser ultrasonics technique can overcome these problems by taking advantage of the weightless non-contact nature of light, and both generation and detection of ultrasonic waves can be accomplished by optical devices: the generation is usually performed by a high power pulsed laser, while the detection is achieved by an optical sensor (generally an interferometer). In this book we present the development of an intensity-modulated fiber optic angular displacement sensor capable to detect ultrasonic waves and to work as the detector on a laser ultrasonics system. This sensor is able to detect angular displacement in the range of microradians, presents high sensitivity, optical fiber compatibility, wide bandwidth and, furthermore, is simple to assemble and low cost.
Автор: Sakamoto Phd Hitomi Название: The Dream Compass: Using Dreams as Your Guide ISBN: 1634929500 ISBN-13(EAN): 9781634929509 Издательство: Неизвестно Цена: 3437.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание: It`s late at night and the rain is pouring down on Dublin`s city streets. A mother is grieving for her dead child. She stands silently outside the home of the teenage boy she believes responsible. In a kitchen on the same square, a girl waits anxiously for her mum to come home. She knows where she is, but she knows she cannot reach her. A few doors down, a widow has just delivered a bombshell to her family during dinner and her life is about to change forever. And an aspiring theatre director has just moved in across the street. But there are already a few things about her landlord that don`t quite add up. Welcome to Primrose Square! Trade paperback edtn.
