Zobrazeno 1 - 10
of 62
pro vyhledávání: '"William M. Humphreys"'
Autor:
Cosmin-Constantin Popescu, Khoi Phuong Dao, Luigi Ranno, Brian Mills, Louis Martin-Monier, Yifei Zhang, David Bono, Brian Neltner, Tian Gu, Juejun Hu, Kiumars Aryana, William M. Humphreys, Hyun Jung Kim, Steven Vitale, Paul Miller, Christopher Roberts, Sarah Geiger, Dennis Callahan, Michael Moebius, Myungkoo Kang, Kathleen A. Richardson, Carlos A. Ríos Ocampo
Publikováno v:
Small Science, Vol 3, Iss 12, Pp n/a-n/a (2023)
Owing to their unique tunable optical properties, chalcogenide phase change materials are increasingly being investigated for optics and photonics applications. However, in situ characterization of their phase transition characteristics is a capabili
Externí odkaz:
https://doaj.org/article/e8e2f0d2304747829033069f8659b137
Autor:
Hyun Jung Kim, Kiumars Aryana, Scott M. Bartram, Stephen Borg, William M. Humphreys, Cosmin-Constantin Popescu, Tian Gu, Juejun Hu, Steven A. Vitale
Publikováno v:
High Contrast Metastructures XII.
Autor:
Kiumars Aryana, Hyun Jung Kim, Matthew Julian, Stephen E. Borg, Scott M. Bartram, William M. Humphreys
Publikováno v:
Optical Components and Materials XX.
Publikováno v:
28th AIAA/CEAS Aeroacoustics 2022 Conference.
Autor:
David Bombara, Calum Williams, Matthew Julian, Stephen E. Borg, William M. Humphreys, Hyun Jung Kim
Publikováno v:
Image Sensing Technologies: Materials, Devices, Systems, and Applications VIII.
The mid-wave infrared (MWIR) waveband (3-5 µm) contains numerous invaluable spectral /thermal signatures. Tunable MWIR filters are thus highly desirable in a variety of imaging and spectroscopic applications. We introduce phase-change tunable filter
Autor:
Christopher J. Bahr, Gary G. Podboy, Stephen D. Schery, William C. Horne, William M. Humphreys, Nathan J. Burnside, Daniel J. Stead
Publikováno v:
AIAA Scitech 2021 Forum.
Characterization of Structural Vibration and Acoustic Radiation with a Beam-Array Doppler Vibrometer
Autor:
Vladimir Markov, William M. Humphreys
Publikováno v:
AIAA AVIATION 2020 FORUM.
Publikováno v:
AIAA Aviation 2019 Forum.
An innovative edge-computing concept known as NeAR (Networked Array Recorder) has been developed to provide enhancements to existing field-deployable microphone phased arrays utilized for aeroacoustic flyover measurements of airframe and propulsive n
Publikováno v:
25th AIAA/CEAS Aeroacoustics Conference.
Results from the third Acoustics Research Measurements flight test, conducted under the NASA Flight Demonstrations and Capabilities project, are presented and discussed. The test evaluated landing gear and gear cavity noise mitigation technologies in
Autor:
Daniel Ernst, A. Pereira, A.M.N. Malgoezar, D. Blacodon, Thomas Padois, A. Finez, Pieter Sijtsma, Gert Herold, Stefan Haxter, Dick G. Simons, Xun Huang, Carsten Spehr, Henri Siller, Thomas Ahlefeldt, Ulf Michel, Christophe Picard, Quentin Leclere, Christopher J. Bahr, Mirjam Snellen, Jérôme Antoni, Ennes Sarradj, Roberto Merino-Martínez, Thomas F. Geyer, William M. Humphreys, S. Funke
Publikováno v:
CEAS Aeronautical Journal, 10(1)
Phased microphone arrays have become a well-established tool for performing aeroacoustic measurements in wind tunnels (both open-jet and closed-section), flying aircraft, and engine test beds. This paper provides a review of the most well-known and s