Results 291 to 300 of about 2,873,064 (342)

Trap-depth measurements using ultracold collisions

Physical Review A, 1996
We measure the depth of an optical atom trap using repulsive trap-loss collisions. These collisions involve excitation by a laser tuned to a frequency above the atomic resonance. Simple conservation of energy considerations give direct quantitative measurements of the trap depth.
, Hoffmann, , Bali, , Walker
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Measurement of Induction-Hardening Depth

2003
In case of inhomogeneous materials, the resonance frequency is governed by the elastic constants and density at the positions of maximum stress and amplitude, respectively, which locate in the medium, depending on the individual resonant mode. Different resonant modes provide the information on the elastic property at different positions, and the ...
Masahiko Hirao, Hirotsugu Ogi
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Optical Measurement of Needle Insertion Depth

The First IEEE/RAS-EMBS International Conference on Biomedical Robotics and Biomechatronics, 2006. BioRob 2006., 2006
We present an optical encoder to report the insertion depth of surgical needles with sub-millimeter resolution. The work pertains to robot-assisted percutaneous needle placement applications. The motivating application is prostate brachytherapy, a procedure to permanently implant radioactive seeds into the prostate to eradicate cancer.
Seidl, Karsten, Fichtinger, Gabor, Kazanzides, Peter   +2 more
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Burn depth and its histological measurement

Burns, 2001
This paper describes a new technique for burn depth measurement, based on the histological assessment of dermal microvascular occlusion in burn biopsies. The technique was validated in a preliminary study of acute progressive microvascular damage in five adults with partial thickness burns.
Watts, A. M I, Tyler, M. P H, Perry, M. E., Roberts, A. H N, McGrouther, D. A.   +4 more
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Ultrasonic underwater depth measurement

Proceedings of the 2002 Interntional Symposium on Underwater Technology (Cat. No.02EX556), 2003
A precise, linear indication of the depth of water in a specific part of the sea is required. This demands a continuous level measurement. There are a wide variety of ways to produce a signal that tracks the depth of water in a specific part of the sea. Ultrasonic detectors find the distance between the seabed and the surface of the water.
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Similarity measures for depth estimation

2009 3DTV Conference: The True Vision - Capture, Transmission and Display of 3D Video, 2009
This paper deals with similarity measures for stereoscopic depth estimation. These measures are used for matching of image pairs, which is the first step of the estimation process. We analyze influence of these similarity measures on performance of depth estimation with use of commonly known measures and compare the results with some novel proposals ...
Krzysztof Wegner, Olgierd Stankiewicz
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Underwater camera with depth measurement

SPIE Proceedings, 2016
The objective of this study is to develop an RGB-D (video + depth) camera that provides three-dimensional image data for use in the haptic feedback of a robotic underwater ordnance recovery system. Two camera systems were developed and studied. The first depth camera relies on structured light (as used by the Microsoft Kinect), where the displacement ...
Wei-Chih Wang, Keng-Ren Lin, Chi L. Tsui, David Schipf, Jonathan Leang   +4 more
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Methods of Measuring Case Depth

2023
<div class="section abstract"> <div class="htmlview paragraph">Case hardening may be defined as a process for hardening a ferrous material in such a manner that the surface layer, known as the case, is substantially harder than the remaining material, known as the core.
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Strategically measure "technical depth index"

Proceedings 1st Austin Workshop on Engineering Management in Technology-Based Organizations, 2002
Many technological companies track performance in terms of quantifiable index. For example, profit/loss, growth rate, design cycle time, product portfolio, patents, etc. Each of these can be measured in terms of dollars, numbers, or an index that can be easily tracked. This places emphasis on the "effect".
N. Moyal, A. Islam
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Historical Methods of Depth Measurement

2000
In establishing the limits of the continental shelf, there are two aspects to the use of depth data. Shallow water depths are used to determine the low-water or drying line and hence the baseline from where the measurement of the various limits begin. Deepwater depths are used to determine the foot of continental slope and the 2500-m isobath, which in ...
Steve Shipman, Anthony Laughton
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