Results 261 to 270 of about 214,191 (310)
BUBBLY-TO-SLUG TRANSITION IN VERTICAL FLOWS
Multiphase Science and Technology, 2003 Alternative mechanisms for the bubble-to-slug transition in vertical flows are discussed. Linking the transition to void wave formation has tended to replace earlier hypotheses of bubble coalescence but neither is consistent with all the observations. Thus, several fundamental questions remain.
Prosperetti, Andrea
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Transition Routes of Natural Convection in a Vertical Fluid Layer
Journal of the Physical Society of Japan, 2002Summary: Transition routes of natural convection in a vertical fluid layer contained in a tall cavity with differentially heated side walls are investigated theoretically on the assumption of two-dimensional flow field. Steady-state solutions are calculated by solving the steady-state equations numerically, and their stability is investigated by ...
Jiro Mizushima +2 more
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Ultrawideband aperture‐coupled vertical microstrip transition
Microwave and Optical Technology Letters, 2007 AbstractSimple design guidelines for an ultrawideband aperture‐coupled vertical microstrip–microstrip transition are presented. The proposed transition utilizes broadside coupling between elliptical‐shaped microstrip patches at the top and bottom layers via an elliptical‐shaped slot in the ground plane, which is located at the mid layer.
Abbosh, A. M., A. M. Abbosh
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Multioctave microstrip‐to‐coplanar waveguide vertical transition
Microwave and Optical Technology Letters, 2010 AbstractA vialess vertical microstrip‐to‐coplanar waveguide (CPW) transition that covers a multioctave bandwidth is proposed. The proposed transition utilizes the magnetic coupling in a pair of mcirostrip‐to‐slotline transitions derived from the microstrip/CPW structure. The presented device is designed following simple design guidelines. The simulated
Abbosh, A. M., A. M. Abbosh
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A vertical transition for suspended line with two transition modes
AEU - International Journal of Electronics and CommunicationsLiwei Yan
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Evaluation of Vertical Wall-To-Guardrail Transition
Volume 5: 13th Design for Manufacturability and the Lifecycle Conference; 5th Symposium on International Design and Design Education; 10th International Conference on Advanced Vehicle and Tire Technologies, 2008Transition barriers are used to connect longitudinal barriers that have different stiffnesses. They are designed to provide a gradual increase in stiffness towards the stiffer barrier section. In this study, a W-beam rail and a W-beam rubrail transition connecting a rigid bridge rail to a semi-rigid guardrail was evaluated using numerical and ...
ATAHAN A. O., BONIN, Guido, EL GINDY M.
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The edge‐transitive but not vertex‐transitive cubic graph on 112 vertices
Journal of Graph Theory, 2005AbstractA detailed description is given of a recently discovered edge‐transitive but not vertex‐transitive trivalent graph on 112 vertices, which turns out to be the third smallest example of such a semisymmetric cubic graph. This graph has been called the Ljubljana graph by the first author, although it is believed that its existence may have been ...
Marston D. E. Conder +4 more
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Vertical transition with elastomeric connectors
14th International Conference on Microwaves, Radar and Wireless Communications. MIKON - 2002. Conference Proceedings (IEEE Cat.No.02EX562), 2003Several prototypes of vertical transitions with the application of Shin-Etsu elastomeric connectors are designed and tested. The insertion loss of a holder with an elastomeric connector coupling two ground coplanar lines, spaced at distance 5 mm, is lower than 0.5 dB at lower frequencies only (below 2 GHz).
S.A. Ivanov, V. Peshlov
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