Christopher Lane – författare
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Inupiat police officer Ray Attla joins two of his police buddies for a three-day caribou hunt in the Alaskan Bush country. But when gear and supplies are lost, the trio fishes for food and pulls in the remains of a human head. Ray assumes the deceased fell victim to a tragic accident -- until he and the party are dodging bullets. Fleeing on foot to an archaeological dig, Ray suspects that unearthed artifacts are not the only remains to be uncovered. Coincidentally, or at the hands of the Inupiat gods, Ray encounters a young Athabascan girl who is gifted with a "special sight". The girl''s visions arm Ray with fragments of information and he follows her lead into the wilderness to hunt a cagey killer who has declared open season on the police officer.
43 kr
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A mysterious ritual murder at a remote Alaskan oil rig brings an Inupiat Eskimo police detective back to the land of his People to catch a killer, and save his own hide.
Police Detective Ray Attla, an Inupiat Eskimo, is spending a few days with his grandfather on the reservation when he''s called into the icy Alaskan wilderness to investigate a death at an isolated oil rig. The killing has all the marks of a ritual murder, and Ray must confront the traditions of his People to catch a killer -- before he too becomes a victim.
360 kr
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949 kr
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360 kr
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2 845 kr
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388 kr
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226 kr
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178 kr
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167 kr
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171 kr
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138 kr
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130 kr
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340 kr
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1 280 kr
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342 kr
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342 kr
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1 633 kr
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2 049 kr
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This thesis describes the development of a new technique to solve an important industrial inspection requirement for a high-value jet-engine component. The work – and the story told in the thesis – stretches all the way from the fundamentals of wave propagation in anisotropic material and ultrasonic array imaging through to device production and site trials. The book includes a description of a new method to determine crystallographic orientation from 2D ultrasonic array data. Another new method is described that enables volumetric images of an anisotropic material to be generated from 2D ultrasonic array data, based on measured crystallographic orientation. After extensive modeling, a suitable 2D array and deployment fixtures were manufactured and tested on in situ turbine blades in real engines. The final site trial indicated an order of magnitude improvement over the best existing technique in the detectability of a certain type of root cracking.
The Development of a 2D Ultrasonic Array Inspection for Single Crystal Turbine Blades should be an inspiration for those starting out on doctoral degrees as it shows the complete development cycle from basic science to industrial usage.
1 633 kr
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280 kr
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280 kr
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