Zobrazeno 1 - 10
of 17
pro vyhledávání: '"Nancy M. Carlson"'
Autor:
Nancy M. Carlson, Mark L. McCaslin
Publikováno v:
The Qualitative Report.
Developing an effective interview strategy presents unique challenges for the novice and master researcher for “if the questions one asks are not crucial, then differences in responses are not crucial either” (Creswell, 1998, p. 335). To focus qu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::259246f548061c0fa8f2948cdf573700
https://doi.org/10.46743/2160-3715/2003.1867
https://doi.org/10.46743/2160-3715/2003.1867
Autor:
Nancy M. Carlson, John A. Johnson
Publikováno v:
Journal of Nondestructive Evaluation. 12:187-192
Laser pulses are an effective, noncontacting technique for generating ultrasound in materials. However, for this approach to be practical, a versatile and safe method of delivering the laser pulses must be developed that eliminates exposed beams stee
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::77d0721c3239ec8837ab31f2308ddc40
https://doi.org/10.1007/bf00567086
https://doi.org/10.1007/bf00567086
Autor:
Nancy M. Carlson
Collaborative learning is critical for the future of any organization and must align with the strategic organizational processes that result in products valued by others. To discover these processes, proposal preparation is explored using topic-orien
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b07f9da32d801e172e59391172602973
https://doi.org/10.2172/910604
https://doi.org/10.2172/910604
Publikováno v:
SPIE Proceedings.
Reuter, A. M. Porter, N. M. CarisonIdaho National Engineering Laboratory, Lockheed Idaho Technologies CompanyP.O. Box 1625, Idaho Falls, Idaho 83415-2218ABSTRACTThermal embrittlement, which can occur during normal operating conditions, may reduce the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eb739f497ace73fe50ae12624e36393d
https://doi.org/10.1117/12.209365
https://doi.org/10.1117/12.209365
Publikováno v:
Review of Progress in Quantitative Nondestructive Evaluation ISBN: 9781461362333
In-process ultrasonic sensing of welding allows detection of weld defects in real time. A noncontacting ultrasonic system is being developed to operate in a production environment. The principal components are a pulsed laser for ultrasound generation
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::21f72df0cbcec16b5e8656000c7771e5
https://doi.org/10.1007/978-1-4615-2848-7_121
https://doi.org/10.1007/978-1-4615-2848-7_121
Autor:
Nancy M. Carlson, John A. Johnson
Publikováno v:
Review of Progress in Quantitative Nondestructive Evaluation ISBN: 9781461366669
A noncontacting ultrasonic sensor system is being developed for online inspection of thick section welds made by a robotic gas metal arc welding (GMAW) system. The sensor system consists of a pulsed laser for generating the ultrasound and an electrom
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e857064c48bf2313f5d481bf2f217f43
https://doi.org/10.1007/978-1-4615-3742-7_125
https://doi.org/10.1007/978-1-4615-3742-7_125
Publikováno v:
Review of Progress in Quantitative Nondestructive Evaluation ISBN: 9781468457742
Research in welding at the Idaho National Engineering Laboratory (INEL) is currently concentrating on the development of sensing, modeling, and control schemes for GMAW [1,2]. In the GMAW process, a welding arc is struck between the workpiece and the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c33ff43a5b076f6a7851bef3ff0933c5
https://doi.org/10.1007/978-1-4684-5772-8_252
https://doi.org/10.1007/978-1-4684-5772-8_252
Autor:
Nancy M. Carlson, John A. Johnson
Publikováno v:
Review of Progress in Quantitative Nondestructive Evaluation ISBN: 9781468457742
An eight-channel data-acquisition system is used to acquire and analyze acoustic-emission (AE) data from aluminum surface-crack specimens. The data acquisition system and an automatic method of analysis are described in a previous paper [1]. In the c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1e3c6694cd5ae22403a0447aec4df0e6
https://doi.org/10.1007/978-1-4684-5772-8_132
https://doi.org/10.1007/978-1-4684-5772-8_132
Publikováno v:
The Journal of the Acoustical Society of America. 112:1733
An apparatus and method for measuring the thickness of a coating adhered to a substrate. An electromagnetic acoustic transducer is used to induce surface waves into the coating. The surface waves have a selected frequency and a fixed wavelength. Inte
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1add6058b21dd2be4085d0d6858d156c
https://doi.org/10.1121/1.1526526
https://doi.org/10.1121/1.1526526
Publikováno v:
Journal of Nondestructive Evaluation. 6:147-157
Ultrasonic methods are being developed for sensing and control of high temperature material processes such as welding and solidification. One of the problems in these methods is the distortion of the sound field caused by the change in material prope
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d3797d2c10b8c1d6d3f8c049f63bc51a
https://doi.org/10.1007/bf00568010
https://doi.org/10.1007/bf00568010