Results 241 to 250 of about 2,098,811 (294)
Spatial mode projection for side-wall angle measurements
SPIE Proceedings, 2015 Finding a fast and precise method to measure the side-wall angle of periodic (or non-periodic) structures is still a very challenging problem in lithographic applications. For this reason, over the years, many techniques have been proposed to circumvent this limitation, with the final goal to give the most precise geometrical description of particular ...
Cisotto, L. (author) +3 more
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International Journal of Pharmaceutics, 1990
Abstract The influence of capsule dosator wall texture and powder properties on the angle of wall friction and powder-wall adhesion was investigated using a modified annular shear cell. Powder-wall friction studies were conducted for different size fractions of five pharmaceutical excipients and two dosator wall materials of defined textures. Results
J M Newton
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Abstract The influence of capsule dosator wall texture and powder properties on the angle of wall friction and powder-wall adhesion was investigated using a modified annular shear cell. Powder-wall friction studies were conducted for different size fractions of five pharmaceutical excipients and two dosator wall materials of defined textures. Results
J M Newton
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Crushing Strength of Honeycombs With Various Cell Wall Angles
Materials Research Innovations, 2011The effects of cell wall angle on the in‐plane impact behaviours of hexagonal honeycombs are studied by finite element method simulations. The cell wall angle varies from 15 to 75° while a regular hexagonal honeycomb possesses a cell wall angle of 30°. Three different impact velocities 10, 60 and 100 m s−1 are involved.
T X Yu
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Effect of Cell-Wall Angle on the In-Plane Crushing Behaviour of Hexagonal Honeycombs
Materials & Design, 2013 The dynamic crushing behaviors in the x- and the y-directions of hexagonal honeycombs with various cell-wall angles are explored by both experiments and numerical simulations.
Lingling Hu, Fanfan You
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Angle-dependent backscatter from the arterial wall
Ultrasound in Medicine & Biology, 1991The anisotropic nature of intra-arterial echographic images is reported, and the source of this anisotropy is investigated using postmortem human iliac arteries. A 27 MHz transducer, mounted on an ultrasonic microscope, is used to quantify the angular dependence of the backscatter power versus the angle of incidence, and these results are correlated ...
Kroon, M.G.M. de +3 more
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Effects of wall-angle distributions in indoor wireless communications
2016 IEEE 17th International Workshop on Signal Processing Advances in Wireless Communications (SPAWC), 2016Providing broadband wireless access in indoor scenarios with multiple indoor transmitters is largely influenced by the blockage of the signals by walls. In this paper, we propose a mathematically tractable approach that relies on stochastic geometry for the distribution of walls in randomly generated scenarios, and investigates on the influence of ...
Martin Klaus Müller +2 more
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Acoustic pulse propagation near a right-angle wall
The Journal of the Acoustical Society of America, 2006Experimental measurements were conducted around a right-angle wall to investigate the effect of this obstacle on sound propagation outdoors. Using small explosions as the source of the acoustic waves allowed reflected and diffracted arrivals to be discerned and investigated in detail.
Lanbo, Liu, Donald G, Albert
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The importance of wall angle for stability in solar ponds
Solar Energy, 1992Minimum stability criteria due to the presence of wall effects in salt gradient solar ponds are introduced. The effects of sun-facing wall angle on incident solar radiation and the onset of instabilities in the form of local convective layers are discussed.
A. Akbarzadeh, P. Golding
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On the mechanics of thin-walled angle column instability
Thin-Walled Structures, 2012Abstract This paper reports the results of a numerical investigation aimed at providing fresh insight on the mechanics underlying the buckling and (mostly) post-buckling behaviour of short-to-intermediate equal-leg thin-walled angle steel columns exhibiting fixed and pinned (but with the secondary warping prevented) end supports. Although most of the
Pedro B. Dinis +2 more
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The Impact of Wall Angle on Nozzle Separation Behavior
46th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit, 2010Rocket nozzles which feature amelioration of asymmetric flow separation and accompanying side-loads offer significant gains in vehicle safe life and launch efficiencies. Whilst this subject has been the purpose of much academic and industrial research the origins of such side-loads are still not well understood.
Arian Aghababaie, Neil Taylor
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