Results 81 to 90 of about 341,046 (199)
Simulation Analysis of the Semi-Trailer Steered Wheels Control Algorithm
SensorsAs part of improving road safety around trucks, a solution was proposed to reduce the swept path width of a moving tractor–semi-trailer. This article presents a mathematical analysis of the movement of a tractor unit with a traditional semi-trailer with ...
Michał Abramowski +4 more
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Effective grain surface area in the formation of molecular hydrogen in interstellar clouds
, 2006 In the interstellar clouds, molecular hydrogens are formed from atomic hydrogen on grain surfaces. An atomic hydrogen hops around till it finds another one with which it combines.
A. Das +14 more
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Results from RV Utafiti research cruises [PDF]
, 1999 Monthly fish surveys were made from 1997-1999 in the Kenyan waters of Lake Victoria in order to estimate the magnitude of fisheries resources. Sample sites were defined using GPS while thirty minute hauls in alternate grid squares were made.
Getabu, A., Nyaudi, J.
core
Force and moment measurements on a 74 deg delta wing with an apex flap [PDF]
Results are presented of a subsonic experimental investigation of an apex flap concept on a 74 deg swept delta wing with trailing-edge flaps. The apex flap comprised approximately 6 percent of the wing area forward of a transverse hinge, allowing for ...
Buter, T. A., Rao, D. M.
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High-speed-propeller wind-tunnel aeroacoustic results [PDF]
, 1980 Some aerodynamic concepts are presented together with an explanation of how these concepts are applied to advanced propeller design. The unique features of this propulsion system are addressed with emphasis on the design concepts being considered for the
Dittmar, J. H., Jeracki, R. J.
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Feasibility study of the transonic biplane concept for transport aircraft application [PDF]
Investigations were conducted to evaluate the feasibility of a transonic biplane consisting of a forward-mounted swept-back lower wing, a rear-mounted swept-forward upper wing, and a vertical fin connecting the wings at their tips.
Bradley, E. S. +5 more
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Swept-wavelength mid-infrared fiber laser for real-time ammonia gas sensing
, 2019 The mid-infrared (mid-IR) spectral region holds great promise for new laser-based sensing technologies, based on measuring strong mid-IR molecular absorption features.
Hudson, D. D. +3 more
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Experimental Droplet Impingement on Several Two-Dimensional Airfoils with Thickness Ratios of 6 to 16 Percent [PDF]
The rate and area of cloud droplet impingement on several two-dimensional swept and unswept airfoils were obtained experimentally in the NACA Lewis icing tunnel with a dye-tracer technique.
Gelder, Thomas F. +2 more
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Influence of tow duration on catch performance of trawl survey in the Mediterranean Sea.
PLoS ONE, 2018 The aim of this study was to assess the effect of tow duration on catch per unit of swept area (CPUE), trawl catch performance, and the proportion of the species caught in a trawl survey. Longer tows are expected to have a greater probability of catching
Antonello Sala
doaj +1 more source