Zobrazeno 1 - 10
of 19
pro vyhledávání: '"Homayoon Ansari"'
Autor:
Seth B. Aaron, Yang Cheng, Nikolas Trawny, Swati Mohan, James Montgomery, Homayoon Ansari, Ken Smith, Andrew E. Johnson, Jay Goguen, Jason Zheng
Publikováno v:
AIAA SCITECH 2022 Forum.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9b0bf224fe1fe53d6d59c83fffbe6c6a
https://doi.org/10.2514/6.2022-0746
https://doi.org/10.2514/6.2022-0746
Autor:
Andrew E. Johnson, Seth B. Aaron, Homayoon Ansari, Charles Bergh, Helene Bourdu, Jim Butler, Johnny Chang, Richard Cheng, Yang Cheng, Kenneth Clark, Daniel Clouse, Rob Donnelly, Kim Gostelow, William Jay, Michael Jordan, Swati Mohan, James Montgomery, Jack Morrison, Steven Schroeder, Boris Shenker, George Sun, Nikolas Trawny, Carson Umsted, Geoffrey Vaughan, Michael Ravine, Jacob Schaffner, Joe Shamah, Jason Zheng
Publikováno v:
AIAA SCITECH 2022 Forum.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e1115977da87b209222b1c74c182fd78
https://doi.org/10.2514/6.2022-1214
https://doi.org/10.2514/6.2022-1214
Autor:
MiMi Aung, Daniel P. Scharf, Martin W. Regehr, Homayoon Ansari, Andrew E. Johnson, Geoffery M. Vaughan, David Masten, Swati Mohan, Joel Benito, Daniel Dueri, Behcet Acikmese, Jordi Casoliva, Scott Nietfeld
Publikováno v:
2014 IEEE Aerospace Conference.
The Autonomous Ascent and Descent Powered-Flight Testbed (ADAPT) is a closed-loop, free-flying testbed for demonstrating descent and landing technologies of next-generation planetary landers. The free-flying vehicle is the Masten Space Systems Xombie
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::82e2e952e8294ada4d94f0e0158a4699
https://doi.org/10.1109/aero.2014.6836462
https://doi.org/10.1109/aero.2014.6836462
Autor:
Homayoon Ansari, James R. Lesh
Publikováno v:
Applied optics. 30(11)
We demonstrate the feasibility of 3-D acoustooptic spectrum analysis with ultrahigh resolution. Sub-Hertz resolution is achieved by processing over a sequence of CCD frames.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::721dce0152229ce1c598766c5a9fafd5
https://pubmed.ncbi.nlm.nih.gov/20700296
https://pubmed.ncbi.nlm.nih.gov/20700296
Publikováno v:
Applied optics. 29(36)
A 2-D acoustooptic spectrum analyzer with the associated reference function generator and real-time image processor has been constructed. The operation of the analyzer and the experimental considerations for obtaining a high resolution spectrum in re
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b23a6989f1645cff40f74921f6f00b77
https://pubmed.ncbi.nlm.nih.gov/20577555
https://pubmed.ncbi.nlm.nih.gov/20577555
Autor:
Homayoon Ansari, Marvin Klein
Publikováno v:
2010 8th International Pipeline Conference, Volume 2.
Hybrid laser arc welding (HLAW) is a technology that promises to increase the efficiency of welded fabrication. By incorporating automation, and integrating an automated inspection system, HLAW can produce high quality welds at higher production rate
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0b532dda35704f6c0e8a675b73f23e86
https://doi.org/10.1115/ipc2010-31608
https://doi.org/10.1115/ipc2010-31608
Autor:
Hamood Rehman, Marvin Klein, Richard Kania, Steve Rapp, Rick McNealy, Martin Fingerhut, Homayoon Ansari
Publikováno v:
2010 8th International Pipeline Conference, Volume 1.
Integrity management decisions related to operating energy transmission pipelines affected by Stress Corrosion Cracking (SCC) represent a formidable challenge to the pipeline industry. Effective management of SCC damage requires the development of to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6b273ca0293525eff59f8f1461b90af1
https://doi.org/10.1115/ipc2010-31278
https://doi.org/10.1115/ipc2010-31278
Autor:
Marvin Klein, Homayoon Ansari
Publikováno v:
2009 IEEE International Symposium on Signal Processing and Information Technology (ISSPIT).
Laser ultrasonics is a form of ultrasonic evaluation in which a pulsed laser generates an ultrasonic wave in a sample which interrogates a specific feature. When this wave returns to the surface a separate laser interferometer detects the small resul
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::681a031cadb89039c0902fc40caec604
https://doi.org/10.1109/isspit.2009.5407572
https://doi.org/10.1109/isspit.2009.5407572
Publikováno v:
2008 7th International Pipeline Conference, Volume 2.
Managing Stress Corrosion Cracking (SCC) damaged pipe has been a formidable challenge to the pipeline industry. Development of a practical solution for measurement and evaluation of SCC has been marred by the complexity of crack shapes, their distrib
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ab0b52738b7833cc03c931b9583232c2
https://doi.org/10.1115/ipc2008-64468
https://doi.org/10.1115/ipc2008-64468
Autor:
Homayoon Ansari
Publikováno v:
SPIE Proceedings.
A tracking control loop was designed for precision beam pointing based on a high frame rate CCD array and a fine steering mirror. The effect of CCD frame rate and readout delay on performance of control loop was analyzed. A digital compensation filte
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::902140683e9c2cb72e607af4b5c23b31
https://doi.org/10.1117/12.184658
https://doi.org/10.1117/12.184658