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Showing 1 to 20 of 37 for “"corrugations"”.
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Effects of Corrugations on Stiffness Properties of Composite Beams for Structural Applications
… be maximized by changing the geometry. By adding corrugations, the flexural stiffness is increased in one direction compared to the stiffness of a flat part with the same amount of material. Thus, stiffness increases without a change in weight. The primary goal of this research was to investigate …
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Convection in Corrugated Slots
… takes place in the absence of corrugation. Corrugations have a sinusoidal form characterized by the wave number a, the upper and lower amplitudes and the phase difference between the upper and lower corrugation systems. They create horizontal temperature gradients which lead to the formation …
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Manufacturing and Evaluation of Kenaf/Polypropylene Honeycomb Cores
… the flat sheets into half-hexagonal corrugations and joining of the corrugations using an ultrasonic welder to form honeycomb cores. The effects of kenaf and maleated polypropylene proportions, fibre length, polypropylene melt flow indices and die temperature on tensile and flexural …
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Tension-induced tunable corrugation in two-phase soft composites and its properties as a band gap structure
… the inclusion pattern, it is possible to induce corrugations normal to the direction of stretch. By stacking 1D composite fibers to form 2D membranes, these corrugations collectively lead to the formation of membrane channels with shapes and sizes tunable by the level of stretch and enable the …
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Stress and strain rate estimates associated with penetrative deformation of the Harkless quartzite aureole rocks, Papoose Flat Pluton, California/Using structure contour maps to analyze subsurface 3D fault geometry along segments of the Moine Thrust
… thrust, with recesses associated with antiformal corrugations in the subsurface and salients characterized by planar geometries or broad synformal corrugations. Additionally, structure contour maps constructed on the Glencoul thrust, as depicted by original BGS maps confirms that the thrust …
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Atomic structures of carbon nanomaterials studied by coherent electron diffraction
… is corrugated and investigated the nature of the corrugations with temperature dependent electron diffraction. By measuring the atomic corrugations along the tube radial direction at different temperatures, I detected a thermal dynamical contribution to the atomic corrugations, which changes from …
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Transmutation: One Thing Becoming Another
… of type. Time is present in my current work. “Corrugations”, not only in the poetic images emerging from three days in the embrace of nature but in the new task of the recycled cardboard of commerce as an agent of art. I share my observation of life as art objects of consideration, poetry …
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Mechanical Properties of Lightweight Sandwich Panels with Corrugated Plywood Core
… ness and strength for shear along and across the corrugations, through-thickness compression, and corrugation bending also exceeded experimental results. It was concluded that the plywood laminate was damaged during forming, reducing elastic mate- rial properties and, more signi cantly, the …
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Fundamentals in unsteady fluid fragmentation from drop impact
… instabilities destabilize the rim: it develops corrugations that grow into ligaments which finally fragment into secondary droplets. Prior investigations of drop impacts have focused on the sheet dynamics but mostly overlooked its role on the final and most important outcome: secondary droplets …
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Two-dimensional periodic surface lattice high power millimetre wave experiment
… of 20 mm and the same number of longitudinal corrugations (7), period (3.0 mm) and azimuthal variations (20) but with different peak to peak amplitudes of 0.5 mm; 0.6 mm; 1 mm and 1.6 mm were manufactured. A W-band (75GHz to 110GHz) Vector Network Analyser was used to measure the transmission …
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Orientation and Dynamics of Nanoscale Liquid Crystalline Films
… dependent on the morphology of the substrate. Corrugations in the ZnSe promote homeotropic (surface normal) alignment of the liquid crystals while grooves initiate a planar alignment. Both film thickness and substrate morphology have a profound effect on the rate of the electric-field induced …
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The Electro -Optical Dynamics of Nanoscale Liquid Crystalline Mesophases
… by a substrate presenting nanometer-scaled corrugations. The influences of temperature on the anchoring and EO dynamics of the nematic mesophase in a LC system whose surface anchoring effects were well characterized are also examined. The dynamical behaviors of the system were seen to be …
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Multiscale hybrid simulation of brittle fracture
… to macroscopic, experimentally observable corrugations. Recent experiments have observed crack surface features consistent with these predictions. The instability is the first example in a crystalline material of a fracture instability which onsets below a critical velocity, and shows how …
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A new approach in blade shape adjustment in PBD-14 design mode
… by the user and the blade surface can develop corrugations in the spanwise direction. A different approach investigated in this study is based on an idea of aligning the blade shape by tracing streamlines. In order to satisfy the kinematic boundary condition, the final blade shape has to …
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An observational and modeling study of a heavy orographic precipitation event over the Oregon Cascades
… along-barrier flow with multiple ridge-valley corrugations oriented perpendicular to the Cascade crest. Microphysical budgets and sensitivity analyses were also performed for the precipitation event and identified important parameters and assumptions in the model's microphysical …
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The Removal of Trace Organic Impurities from Water using Activated Charcol Cloth
… onto the surface, or into longitudinal surface corrugations. Therefore, pore transport was assumed to be negligible and adsorption to be surface-reaction-controlled. The experimental apparatus constructed for this study consisted of three well-stirred reactors, through which a continuous length …
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Computational fluid dynamical studies of structured distillation packings
… sheets placed in the vertical plane The corrugations provide a regular network of channels for vapour liquid contact. Until recently it has been necessary to develop new packings by trial and error, testing new shapes in the laboratory. The orderly repetitive nature of the channel network …
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Surface Friction and Spectroscopic Probes of New Physics with Trapped Ions
… a predictive Boltzmann model. At low enough corrugations, the ion can be expected to tunnel through (in addition to slip over) the potential barriers of the energy landscape, leading to a reduction in friction termed quantum lubricity. Attempts at seeing quantum tunneling via static Rabi …
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Investigation of bench methods for determining stiffness of solid ankle-foot orthoses
… 4.6 co-polymer solid AFO with carbon fibre shape corrugations. The experimental procedure had two objectives: 1. To fabricate and document an effigy leg suitable for the stiffness testing of an AFO. 2. To measure and compare the stiffness of an AFO with/without the presence of the effigy leg by …
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Laser-induced forward transfer techniques for printing functional materials and photonic devices
… in determining mode profiles of waveguides. The corrugations due to the segmented nature of the deposits was observed to introduce non-adiabatic behavior in the mode filters which was further confirmed by theoretical modeling. Forward transfer of donor films with patterns to be transferred …
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