Results 71 to 80 of about 457,767 (189)

Enhanced Piezoelectric Output and Electromechanical Response of ZnO Film Sensors via Orientation Induction and Rapid Deposition Strategies

open access: yesENERGY &ENVIRONMENTAL MATERIALS, Volume 9, Issue 1, January 2026.
Employing an orientation induction and rapid deposition strategy, the oriented growth of ZnO piezoelectric films is effectively regulated, resulting in significantly enhanced piezoelectric polarization and electromechanical response. The ZnO OIL sensor exhibits excellent sensitivity, fast response, and high measurement accuracy in practical ...
Zhonghao Liu   +12 more
wiley   +1 more source

Optical measurement of unducted fan flutter [PDF]

open access: yes
A nonintrusive optical method is described for flutter vibrations in unducted fan or propeller rotors and provides detailed spectral results for two flutter modes of a scaled unducted fan. The measurements were obtained in a high-speed wind tunnel.
Kurkov, Anatole P., Mehmed, Oral
core   +1 more source

Intersections between ethics and diversity, equity, and inclusion in engineering practice: Insights from practitioners' mental models

open access: yesJournal of Engineering Education, Volume 115, Issue 1, January 2026.
Abstract Background Ethics and diversity, equity, and inclusion (DEI) are critical aspects of engineering, and connections between ethics/DEI are becoming increasingly common place in engineering education and practice. For example, many engineering professional organizations have integrated DEI into their codes of ethics.
Justin L. Hess   +2 more
wiley   +1 more source

Extreme wildfire conditions shift coastal phytoplankton community structure in California

open access: yesLimnology and Oceanography, Volume 71, Issue 1, January 2026.
Abstract Extreme wildfires have increased in frequency and intensity globally, particularly in the Western United States. Here we examine how the 2020 Lightning Complex Fires in California influenced coastal phytoplankton communities using monitoring network data products in the Monterey Bay, the ocean region closest to this large fire.
Dante Capone   +5 more
wiley   +1 more source

Geometric aspects of ground station/satellite communications [PDF]

open access: yes
Geometry aspects of communications between ground station and satellite in elliptical ...
Bourke, R. D.
core   +1 more source

System for indicating direction of intruder aircraft [PDF]

open access: yes, 1973
A pilot warning indicator system consisting of a flashing beacon, a detector, and an indicating panel is described. The detector responds to radiant energy from another aircraft's beacon by energizing particular signal lamps positioned in the periphery ...
Story, A. W.
core   +1 more source

Morphology of Antarctic Polygons and Implications for Polygon Evolution and Subsurface Ice Dynamics

open access: yesPermafrost and Periglacial Processes, Volume 37, Issue 1, Page 143-153, January/March 2026.
ABSTRACT Polygonal terrain results from thermal contraction, is commonly found in periglacial environments, and serves as a valuable proxy for interpreting subsurface ice distribution and climate history on Earth and Mars. In this study, we investigate the morphology of polygons in Beacon Valley, Antarctica, to assess the relationship between polygon ...
Rachael H. Hoover   +4 more
wiley   +1 more source

Re-Computation of Numerical Results Contained in NACA Report No. 685 [PDF]

open access: yes
In an engineering note published in the Journal of Aircraft in the year 2000, Thomas A. Zeiler made generally known that some of the early works on aeroelastic flutter by Theodore Theodorsen and I.E. Garrick (NACA Report Nos. 496, 685, and 741) contained
Perry, Boyd, III
core   +1 more source

Eye point-of-regard system [PDF]

open access: yes, 1971
System measures intersection of line of sight and eye point of regard /EPR/ for a human operator in visual scanning system. Device measures two head to reference angles with EPR system and adds them with eye to head angles, yielding a dc signal ...
Jex, H. R.
core   +1 more source

Processing, Characterization, and Detonation Testing of Explosive/Wax/Graphite Charges With CL‐20/HMX Cocrystals

open access: yesPropellants, Explosives, Pyrotechnics, Volume 51, Issue 1, Page 31-38, January 2026.
Increased detonation performance of a explosive formulation with CL‐20/HMX cocrystal compared to the HMX and RDX based OWC and HWC. ABSTRACT Granulates of explosive/wax/graphite formulations, oktogen/wax/graphite formulation (OWC), hexogen/wax/graphite formulation (HWC), PBX‐formulation of the FhG ICT (PHX) 151, and PHX 153 with 1,3,5,7‐tetranitro‐1,3 ...
Michael Herrmann   +2 more
wiley   +1 more source

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