Results 91 to 100 of about 709,669 (342)
On the scalar components of the canonical form on higher order frame bundles
Дифференциальная геометрия многообразий фигурA detailed obtaining of the expressions for the scalar components of the canonical form on higher order frame bundles over a smooth manifold has been done.
A. V. Kuleshov
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Experimental Studies of Coaxial Jet Flows
Journal of Fluid Science and Technology, 2007 An experimental study was carried out to investigate the effect of coaxial nozzle operating conditions on near-field jet plume development. The study was conducted in a low speed water tunnel as well as in a high-speed airflow nozzle test facility. Laser
Parviz BEHROUZI, James J. McGUIRK
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Advanced Engineering Materials, EarlyView.This article examines how build orientation, thickness, and loading rate affect the tensile and compressive properties of LS‐manufactured polyamide 12 12 parts. Through over 120 experiments, it reveals strong ductility anisotropy in tension, minimal compressive sensitivity, and significant thickness and strain rate dependencies.
Andreas Psarros +2 more
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Inlet device with double exponential profile distributor for indoor air dispensation
Selected Scientific Papers: Journal of Civil Engineering, 2019 This paper presents a device for introducing air inside a room with the novelty of double-exponential profile of the distributor. This allows entering the rooms of large quantities of blow-in air with low velocities, with the result of possible use in ...
Domnita Florin, Kapalo Peter
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An Experimental Study of Amplitude and Frequency Effects upon a Pulsating Jet
Journal of Fluid Science and Technology, 2009 Pulsating jets are very common and useful in various industrial aspects. However, they have some different basic characteristics from steady jets. In this research, the authors reveal both the frequency and the amplitude effects of pulsations on a jet ...
Katsuya HIRATA +5 more
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Advanced Engineering Materials, EarlyView.Ti‐6Al‐4V samples produced by laser‐powder bed fusion are tested for static and dynamic mechanical properties to systematically evaluate the effects of surface roughness and internal porosity when using productivity parameters. The most detrimental impact to fatigue is caused by surface roughness, lack of fusion and keyhole porosity in descending order.
Julian Emanuel Gunther Schulz +4 more
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Physics Letters A, 2011 We discuss time-dependent gravitational fields that "accelerate" free test particles to the speed of light resulting in cosmic double-jet configurations. It turns out that complete gravitational collapse along a spatial axis together with corresponding expansion along the other two axes leads to the accelerated motion of free test particles up and down
Carmen Chicone +2 more
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Flow Structure of a Coaxial Circular Jet with Axisymmetric and Helical Instability Modes
Journal of Fluid Science and Technology, 2011 The flow structures in a coaxial jet with axisymmetric and helical instability modes for a comparatively low Reynolds number were investigated. The flow visualization and the measurements of velocities were carried out in an open water tank. In addition,
Takahiro KIWATA +4 more
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Advanced Engineering Materials, EarlyView.Steel samples are investigated using complementary simulations and measurements. Transmission electron microscopy in bright‐field mode, combined with energy‐dispersive X‐ray spectroscopy maps for titanium and niobium, reveals distinct particle populations. Simulations reproduce these in size and composition.
Marc Laub +3 more
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