Results 81 to 90 of about 980,901 (302)
Dynamic Characteristics of Electrostatically Actuated Shape Optimized Variable Geometry Microbeam
Shock and Vibration, 2015 We mainly analyze the dynamic characteristics of electrostatically actuated shape optimized variable geometry microbeam. A nonlinear dynamic model considering midplane stretching, electrostatic force, and electrical field fringing effects is developed ...
Sha Zhang +3 more
doaj +1 more source
A variable-geometry combustor used to study primary and secondary zone stoichiometry [PDF]
A combustion program is underway to evaluate fuel quality effects on gas turbine combustors. A rich-lean variable geometry combustor design was chosen to evaluate fuel quality effects over a wide range of primary and secondary zone equivalence ratios at ...
Briehl, D. +2 more
core +1 more source
Bistable Mechanisms 3D Printing for Mechanically Programmable Vibration Control
Advanced Engineering Materials, EarlyView.This work introduces a 3D‐printed bistable mechanism integrated into tuned mass dampers (TMDs) for mechanically adaptive passive vibration suppression. Through optimized geometry, the bistable design provides adaptable vibration reduction across a broad range of scenarios, achieving effective vibration mitigation without complex controls or external ...
Ali Zolfagharian +4 more
wiley +1 more source
Crítica constitucional a la categoría jurídica de ruralidad en España
Revista Vasca de Administración PúblicaThe main objective of this work is to clarify the legal category of rurality in the Spanish legal system. The methodology employed is that of the legal sciences (legislative and doctrinal analysis), using as a basis the methodological premises of ...
Ana Torrecillas Martínez
doaj +1 more source
The Variable Geometry of Conflicts within a Marginalised Peasantry
Revue Internationale des Études du DéveloppementThis article analyses conflicts within a peasantry that has lived through a violent history (colonial domination, liberation war, Gukurahundi massacres, land grabbing).
Zénaïde Dervieux
doaj +1 more source
Experimental investigation of wall shock cancellation and reduction of wall interference in transonic testing [PDF]
A series of experiments were performed to evaluate the effectiveness of a three-dimensional land and groove wall geometry and a variable permeability distribution to reduce the interference produced by the porous walls of a supercritical transonic test ...
Ferri, A., Roffe, G.
core +1 more source
Study of branes with variable tension
, 2016 In this work we study a brane world model with variable tension which gives rise to four dimensional cosmologies. The brane worlds obtained correspond to E\"{o}tv\"{o}s branes whose (internal) geometry can be casted as either a four dimensional (A)dS$_{4}
Aros, Rodrigo, Estrada, Milko
core +1 more source
Advanced Engineering Materials, EarlyView.Laser surface texturing significantly improves the corrosion resistance and mechanical strength of 3D‐printed iron polylactic acid (Ir‐PLA) for marine applications. Optimal laser parameters reduce corrosion by 80% and enhance tensile strength by 25% and ductility by 15%.
Mohammad Rezayat +6 more
wiley +1 more source
4D printed NiTi variable-geometry inlet for aero engines
Virtual and Physical PrototypingIn modern aerospace engineering, the demand for innovative and adaptable solutions is paramount. This study focuses on enhancing aircraft engine components, specifically variable-geometry inlets, to meet evolving aviation technology requirements.
Jingtao Kang +5 more
doaj +1 more source
Design and manufacture of a scaled railway track with mechanically variable geometry. [PDF]
Sci Rep, 2022 Chamorro R +4 more
europepmc +1 more source