Zobrazeno 1 - 5
of 5
pro vyhledávání: '"Patrick Ostlund"'
Autor:
Mircea Badescu, Jennifer Hasenoehrl, Yoseph Bar-Cohen, Stewart Sherrit, Xiaoqi Bao, Zensheu Chang, Patrick Ostlund, Jack Aldrich
Publikováno v:
SPIE Proceedings.
Increasingly, NASA exploration mission objectives include sample acquisition tasks for in-situ analysis or for potential sample return to Earth. To address the requirements for samplers that could be operated at the conditions of the various bodies i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::02be86290c7fcb22960f136ce14980e5
https://doi.org/10.1117/12.2010316
https://doi.org/10.1117/12.2010316
Autor:
Yoseph Bar-Cohen, Scott Widholm, Zensheu Chang, Patrick Ostlund, Stewart Sherrit, Mircea Badescu, Xiaoqi Bao
Publikováno v:
SPIE Proceedings.
There is a great need for compact, efficient motors for driving various mechanisms including robots or mobility platforms. A study is currently underway to develop a new type of piezoelectric actuators with significantly more strength, low mass, smal
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8fc640e3c02178b71eb87e2a1ef60343
https://doi.org/10.1117/12.915387
https://doi.org/10.1117/12.915387
Autor:
Shyh-Shiuh Lih, Scott Widholm, Patrick Ostlund, Beck Chen, Zensheu Chang, Stewart Sherrit, Mircea Badescu, Xiaoqi Bao, Yoseph Bar-Cohen
Publikováno v:
SPIE Proceedings.
The formation of scour patterns at bridge piers is driven by the forces at the boundary of the water flow. In most experimental scour studies, indirect processes have been applied to estimate the shear and normal stress using measured velocity profil
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bb1e65c97419b0d5611f9882dcd3584d
https://doi.org/10.1117/12.880901
https://doi.org/10.1117/12.880901
Autor:
Xiaoqi Bao, Zensheu Chang, Mircea Badescu, Phillip Allen, Patrick Ostlund, Stewart Sherrit, Yoseph Bar-Cohen, Daniel Geiyer
Publikováno v:
SPIE Proceedings.
One of the first piezoelectric motor designs with significant rotational speeds was outlined by Barth. This device used extensional piezoelectric elements to produce a time varying force at a distance r from the center of a centrally supported disk.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fc4efbba856055965877851ea0fb5762
https://doi.org/10.1117/12.880496
https://doi.org/10.1117/12.880496
Autor:
Stewart Sherrit, Patrick Ostlund, Yoseph Bar-Cohen, Mircea Badescu, Scott Widholm, Julian O. Blosiu, Shyh-Shiuh Lih, Xiaoqi Bao
Publikováno v:
SPIE Proceedings.
An in-service health monitoring system is needed for steam pipes to track through their wall the condensation of water. The system is required to measure the height of the condensed water inside the pipe while operating at temperatures that are as hi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c36c1ba55e5e6a5926070959e13c97bf
https://doi.org/10.1117/12.880907
https://doi.org/10.1117/12.880907