Results 41 to 50 of about 618,709 (247)

Humanitarian Innovation Project [PDF]

open access: yes, 2014
The Humanitarian Innovation Project (HIP) www.oxhip.org is housed within the Refugee Studies Centre at the University of Oxford and focuses specifically on the refugee ...
Review, Forced Migration
core  

Lock-in of the vortex-induced vibrations of a long tensioned beam in shear flow [PDF]

open access: yes, 2011
The occurrence of lock-in, defined as the local synchronization between the vortex shedding frequency and the cross-flow structural vibration frequency, is investigated in the case of a tensioned beam of length to diameter ratio 200, free to move in both
Rémi Bourguet   +5 more
core   +1 more source

Adaptive Foam 3D Printing of Ultralight and Multifunctional Materials

open access: yesAdvanced Engineering Materials, EarlyView.
Adaptive foam 3D printing, enabled by expandable microspheres, imparts cellular structures to thermoplastic and thermosetting polymers, manufactured through a variety of processes including fused filament fabrication, direct ink writing, digital light processing, and inkjet printing.
Nariman Rajabifar, Amir Ameli
wiley   +1 more source

Distributed lock-in drives broadband vortex-induced vibrations of a long flexible cylinder in shear flow [PDF]

open access: yes, 2013
A slender flexible body immersed in sheared cross-flow may exhibit vortex-induced vibrations (VIVs) involving a wide range of excited frequencies and structural wavenumbers.
Triantafyllou, Michael S.   +2 more
core   +1 more source

Investigating the Low‐Temperature Phase Stability of the Binary Ta–W System

open access: yesAdvanced Engineering Materials, EarlyView.
Atomistic simulations show that the binary Ta–W system forms ordered intermetallic phases, B2‐TaW and D03‐TaW3, as 0 K ground states. Configurational entropy, however, lowers the free energy of the disordered bcc solid solution, which becomes the stable phase above about 400 K.
Klemens Lechner   +7 more
wiley   +1 more source

Evaluation and control of induced vibrations for a passenger car ferry

open access: yesAnnals of "Dunărea de Jos" University of Galaţi: Fascicle XI Shipbuilding, 2015
The aim of this paper is to present some examples related to the evaluation of the level of the global forced vibrations and to highlight the possible vibration problems of the ship.
Octavian Neculet, Liviu Crudu
doaj  

Harmonic analysis of the torque of the YAMZ-5340 engine

open access: yesОмский научный вестник
The purpose of the study is to find a technique and conduct on its basis a harmonic analysis of the torque of an internal combustion engine for the subsequent determination of resonant vibrations of the crankshaft. The method of calculating the harmonics
Yu. P. Makushev, T. A. Polyakova
doaj   +1 more source

Response of Thin Sheet Metal on the Excitation in Electromagnetic Forming

open access: yesEngineering Proceedings, 2022
Due to their low inertia, vibrations are stimulated during electromagnetic forming of thin sheets, whereby the excitation might involve the impact on the die and the oscillation of the electromagnetic forces.
Björn Beckschwarte   +2 more
doaj   +1 more source

Forced response prediction for industrial gas turbine blades [PDF]

open access: yes, 2006
A highly efficient aeromechanical forced response system is developed for predicting resonant forced vibration of turbomachinery blades with the capabilities of fully 3-D non-linear unsteady aerodynamics, 3-D finite element modal analysis and blade root ...
Moffatt, Stuart
core  

FastNano Liquid: An Automated Platform for Small‐Angle X‐ray Scattering‐Based Materials Discovery

open access: yesAdvanced Engineering Materials, EarlyView.
We present FastNano Liquid, an automated small‐ and wide‐angle X‐ray scattering platform for the combined synthesis and characterization of (nano)materials. The platform is coupled to varied reactor workflows for both in situ studies of reaction kinetics and ex situ screening of synthesis conditions to support machine learning‐guided exploration ...
Pierre‐Baptiste Flandrin   +16 more
wiley   +1 more source

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