Results 251 to 260 of about 3,347 (296)
International Journal of Finance &Economics, EarlyView.ABSTRACT One of the critical risks associated with cryptocurrency assets is the so‐called downside risk, or tail risk. Conditional Value‐at‐Risk (CVaR) is a measure of tail risks that is not normally considered in the construction of a cryptocurrency portfolio.
Xinran Huang +3 more
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International Journal of Finance &Economics, EarlyView.ABSTRACT This study draws on framing theory to investigate how microfinance institutions (MFIs) strategically construct a vulnerability‐oriented organisational identity and how this framing influences their funding decisions during the pre‐campaign phase of prosocial crowdfunding.
Ana Paula Matias Gama +3 more
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3D‐Printed Models in Oral Surgery Simulation Training: A Scoping Review
Journal of Dental Education, EarlyView.ABSTRACT Background Advancements in three‐dimensional (3D) printing have introduced innovative tools for medical and dental education. In dental surgery, 3D‐printed simulation models offer valuable presurgical training. This review explores the scope, study types, key findings, limitations, and future research needs to enhance their application in ...
Shahrzad Rahimizadeh Nahavandi +5 more
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Jet vectoring using synthetic jets
Journal of Fluid Mechanics, 2002The interaction between a conventional rectangular (primary) air jet and a co-flowing synthetic jet is investigated experimentally. The nozzles of both jets have the same long dimension but the aspect ratio of the synthetic jet orifice is 25 times larger.
Smith, B. L., Glezer, A.
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Vectoring of Adjacent Synthetic Jets
AIAA Journal, 2005The formation, evolution, and interactions of a closely spaced pair of coflowing rectangular synthetic jets are investigated using particle image velocimetry. The dynamics of the combined jet is determined by the interactions of the counter-rotating vortex pairs that form each jet.
Barton L. Smith, Ari Glezer
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Research on Nozzle Jet Vector Control with Synthetic Jet Technology
International Journal of Turbo & Jet-Engines, 2020AbstractThe synthetic jet actuator was applied to the nozzle jet vector control by experimental and numerical simulation methods to study fluid thrust vector control in this paper. The nozzle jet produced a steady and continuous deflection under the action of synthetic jet actuators.
Binglong Zhang, He Liu, Jinzhong Dong
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Acheon Project: A Novel Vectoring Jet Concept
Volume 1: Advances in Aerospace Technology, 2012This paper presents a general overview of the ACHEON Project (EU FP7 Level 0 - Transport including Aeronautic). This project presents a novel dynamically controllable Coanda jet using two fluid streams to produce the angular deflection of the jet as a function of their momentum.
DUMAS, Antonio +5 more
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THE MECHANISM OF JET VECTORING USING SYNTHETIC JET ACTUATORS
Modern Physics Letters B, 2005The control mechanism of jet vectoring using synthetic jet actuators is investigated. The final deflection angle of the primary jet is a result of the primary jet controlled by synthetic jets at three different regions. The lower static pressure near the primary jet exit induced by the synthetic jet, the entrainment and absorption of the primary jet ...
ZHEN-BING LUO, ZHI-XUN XIA
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Counterflow thrust vectoring of supersonic jets
34th Aerospace Sciences Meeting and Exhibit, 1996Fluidic thrust vector control is examined in a supersonic rectangular jet having a 4 :1 aspect ratio and for jet stagnation temperatures between 300 and 670 K. Experiments conducted in a nominally ideally expanded Mach 2 jet reveal that thrust can be continuously vectored up to at least 16 deg by creating a secondary counterflowing stream between the ...
P. J. Strykowski +2 more
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