Results 71 to 80 of about 2,280,181 (337)

Bistable Mechanisms 3D Printing for Mechanically Programmable Vibration Control

open access: yesAdvanced 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

Radius of a Photon Beam with Orbital Angular Momentum

open access: yes, 2012
We analyze the transverse structure of the Gouy phase shift in light beams carrying orbital angular momentum and show that the Gouy radius $r_G$ characterizing the transverse structure grows as $\sqrt{2p+|\ell|+1}$ with the nodal number $p$ and photon ...
B S Davis   +8 more
core   +1 more source

Geometric Optimization and Mechanical Performance Enhancement of Auxetic Structures for High‐Impact Applications Through Fused Deposition Modeling

open access: yesAdvanced Engineering Materials, EarlyView.
This study explores the mechanical performance of three auxetic structures, identifying a re‐entrant‐star hybrid as the most effective for impact absorption. Finite element simulations and experiments demonstrate significant gains in energy absorption and flexural strength after geometric optimization. This study investigates the mechanical performance
Malik Hassan   +4 more
wiley   +1 more source

Dynamic Precipitation during High‐Pressure Torsion of a Magnesium–Manganese Alloy

open access: yesAdvanced Engineering Materials, EarlyView.
An ultrafine‐grained alloy is produced by high‐pressure torsion of solutionized Mg–1.35 wt% Mn. Precipitation of nanometer‐scale Mn particles during deformation provides pinning sites. This prevents the formation of a bimodal grain structure and results in a finer grain size than for pure Mg.
Julian M. Rosalie, Anton Hohenwarter
wiley   +1 more source

Epiphyseal Closure Time of Radius and Ulna Bones of the Proximal Section

open access: yesFolia Medica Indonesiana, 2018
Accurate determination of age is important in the legal process; when a person’s  age is unknown or must be authenticated, a forensic age identification method must be applied.
Tiara Mayang Pratiwi Lio   +3 more
doaj   +1 more source

Vortices in superconductors with a columnar defect: finite size effects

open access: yes, 2004
In the present work we investigate the behavior of a vortex in a long superconducting cylinder near to a columnar defect at the center. The derivations of the local magnetic field distribution and the Gibbs free energy will be carried out for a cylinder ...
Baelus   +15 more
core   +1 more source

Characterization of Defect Distribution in an Additively Manufactured AlSi10Mg as a Function of Processing Parameters and Correlations with Extreme Value Statistics

open access: yesAdvanced Engineering Materials, EarlyView.
Predicting extreme defects in additive manufacturing remains a key challenge limiting its structural reliability. This study proposes a statistical framework that integrates Extreme Value Theory with advanced process indicators to explore defect–process relationships and improve the estimation of critical defect sizes. The approach provides a basis for
Muhammad Muteeb Butt   +8 more
wiley   +1 more source

RECOVERY THROUGH PHYSICAL THERAPY A RADIUS OF FRACTURE ON CHILDREN [PDF]

open access: yesAnnals of the “Ştefan cel Mare” University: Physical Education and Sport Section - The Science and Art of Movement, 2018
The purpose of this paper is to contribute to the improvement, reducing recovery time for fractures of the radius by applying a specialized and individualized recovery program.
Petrariu Ileana
doaj  

Extraction of the Proton Charge Radius from Experiments

open access: yesMakara Journal of Science, 2016
The static properties of hadrons, such as their radii and other moments of the electric and magnetic distributions, can only be extracted using theoretical methods and cannot be directly measured from experiments.
Neelima Govind Kelkar   +2 more
doaj   +1 more source

Hyperbolic geometry on noncommutative balls [PDF]

open access: yes, 2009
In this paper, we study the hyperbolic geometry of noncommutative balls generated by the joint operator radius $\omega_\rho$, $\rho\in (0,\infty]$, for $n$-tuples of bounded linear operators on a Hilbert space.
Popescu, Gelu
core   +1 more source

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