Results 111 to 120 of about 715,745 (305)

Design, characterization, and fabrication of solar-retroreflective cool-wall materials [PDF]

open access: yes, 2020
Raising urban albedo increases the fraction of incident sunlight returned to outer space, cooling cities and their buildings. We evaluated the angular distribution of solar radiation incident on exterior walls in 17 U S.
Berdahl, P   +5 more
core  

Prospects of Electric Field Control in Perpendicular Magnetic Tunnel Junctions and Emerging 2D Spintronics for Ultralow Energy Memory and Logic Devices

open access: yesAdvanced Functional Materials, EarlyView.
Electric control of magnetic tunnel junctions offers a path to drastically reduce the energy requirements of the device. Electric field control of magnetization can be realized in a multitude of ways. These mechanisms can be integrated into existing spintronic devices to further reduce the operational energy.
Will Echtenkamp   +7 more
wiley   +1 more source

Experimental Study on Wind Load Characteristics of Dual-slope Solar Panels

open access: yesTaiyuan Ligong Daxue xuebao
Purposes This research has been carried out to investigate the wind load characteristics of dual-slope solar panels. Methods Wind tunnel tests with rigid models were conducted to investigate the effects of wind direction, inclination angle, and panel ...
WANG Xinjin, WANG Shunbo, QIU Ye
doaj   +1 more source

Ultrathin wide-angle large-area digital 3D holographic display using a non-periodic photon sieve

open access: yesNature Communications, 2019
3D holographic displays still face many challenges such as small viewing angle and image size. Here the authors present a scalable method for displaying large holographic images with a wide viewing angle using a wide-angle diffracting element in a flat ...
Jongchan Park   +2 more
doaj   +1 more source

Vortex Effects for Canard-wing Configurations at High Angles of Attack in Subsonic Flow [PDF]

open access: yes
A fully three-dimensional subsonic panel method that can handle arbitrary shed vortex wakes is used to compute the nonlinear forces and moments on simple canard-wing configurations. The lifting surfaces and wakes are represented by doublet panels.
Desilva, B. M. E., Medan, R. T.
core   +1 more source

Kinetic Insights into Precursor‐Assisted Soft Sphere Close Packing Revealed by In Situ GISAXS with Implications for Gas Sensing

open access: yesAdvanced Functional Materials, EarlyView.
The versatile precursor‐assisted soft sphere close packing during slot‐die coating is investigated with in situ X‐ray scattering. The soft crystallization pathways towards a close packing involve multistep structural transitions such as surface nucleation, in‐plane, and out‐of‐plane crystallization.
Guangjiu Pan   +14 more
wiley   +1 more source

An experimental and theoretical investigation of thick wings at various sweep angles in and out of ground effect [PDF]

open access: yes
The effects of sweep and aspect ratio on the longitudinal aerodynamics of a wing in and out of ground effect are analyzed. Experimental data were obtained in the Langley 4 by 7 Meter Tunnel for a wing with various sweep angles, aspect ratios, and flap ...
Kjelgaard, S. O., Paulson, J. W., Jr.
core   +1 more source

Advanced symbology for general aviation approach to landing displays [PDF]

open access: yes, 1983
A set of flight tests designed to evaluate the relative utility of candidate displays with advanced symbology for general aviation terminal area instrument flight rules operations are discussed.
Bryant, W. H.
core   +1 more source

Low‐Symmetry Weyl Semimetals: A Path to Ideal Topological States

open access: yesAdvanced Functional Materials, EarlyView.
This study presents a theoretical framework for realizing ideal Weyl semimetals, where Weyl nodes are well‐isolated at the Fermi level. The approach is exemplified in the low‐symmetry material Cu2SnSe3, which exhibits tunable topological phases, current‐induced orbital magnetization, and a strong circular photogalvanic effect, making it a promising ...
Darius‐Alexandru Deaconu   +3 more
wiley   +1 more source

An investigation of the influence of a fiber arrangement of a laminate on the values of stresses in the composite panel of a modified freight wagon using the FEM method

open access: yesMATEC Web of Conferences, 2017
In the work is presented the investigation of influence of fiber arrangement of a laminate on the values of stresses in the composite panel of a modified freight wagon using the FEM method.
Buchacz Andrzej   +3 more
doaj   +1 more source

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