If youve pondered on the infinite questions of existence, love and quantum physics, time-travel or great coffeeSave Changes has arrived with knowledge that the future is merely a case of remembering.
This book introduces the fundamental theory of electromagnetic ultrasonic guided waves, together with its applications. It includes the dispersion characteristics and matching theory of guided waves; the mechanism of production and theoretical model of electromagnetic ultrasonic guided waves; the effect mechanism between guided waves and defects; the simulation method for the entire process of electromagnetic ultrasonic guided wave propagation; electromagnetic ultrasonic thickness measurement; pipeline axial guided wave defect detection; and electromagnetic ultrasonic guided wave detection of gas pipeline cracks. This theory and findings on applications draw on the author’s intensive research over the past eight years. The book can be used for nondestructive testing technology and as an engineering reference work. The specific implementation of the electromagnetic ultrasonic guided wave system presented here will also be of value for other nondestructive test developers.
You’ve seen them before. They’re in your home, in your office, on the street. You’ve encountered them at some fine and not-so-fine establishments. They’re the new urban animals, and now they’ve been classified. You know you’ve met Every Mother’s Worse Nightmare (“So what if it says ‘Pussy’ on the front, Mom? There’s a picture of a cat under the word”) and The Simpsons Quoter (Natural habitat: His own private Springfield, no further description necessary). From That Young Literary Guy, who has just published a novel, half of which is comprised of footnotes, to The Condescending Vegetarian, who misses the nineties, when it was more acceptable to call a hamburger evil just as a dining companion was about to attack one, this book takes a biting look at the creatures that inhabit our everyday urban world laugh-out-loud portraits, with a touch of the tragically comic. Beware, you might find yourself in here.