Results 81 to 90 of about 410,177 (299)

Spatial Structure and Coherent Motion in Dense Planetary Rings Induced by Self-Gravitational Instability [PDF]

, 1999
We investigate the formation of spatial structure in dense, self-gravitating particle systems such as Saturn's B-ring through local $N$-body simulations to clarify the intrinsic physics based on individual particle motion.
A G W Cameron, A P Hatzes, A Toomre, B A Smith, D C Richardson, D N C Lin, D Sugimoto, E Griv, F G Bridges, G W Hill, H Salo, H Salo, H Salo, H Salo, J Binney, J Lukkari, J Makino, J Makino, J P Dilley, J Wisdom, K D Supulver, K Nakazawa, K Ohtsuki, K Ohtsuki, K Ohtsuki, L Dones, L W Esposito, L W Esposito, L W Esposito, P Goldreich, P Goldreich, P Goldreich, S Araki, S Araki, S Araki, S Ida, S Ida, S Ida, W H Julian, W H Press, W K Hartmann, W R Ward   +41 more
core   +3 more sources

Remote Assessment of Ataxia Severity in SCA3 Across Multiple Centers and Time Points

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Spinocerebellar ataxia type 3 (SCA3) is a genetically defined ataxia. The Scale for Assessment and Rating of Ataxia (SARA) is a clinician‐reported outcome that measures ataxia severity at a single time point. In its standard application, SARA fails to capture short‐term fluctuations, limiting its sensitivity in trials.
Marcus Grobe‐Einsler, Vivian Maas, Arian Taheri Amin, Jennifer Faber, Tamara Schaprian, Katharina Hill, Matthis Synofzik, Lisa H. Graf, Heike Jacobi, Manuela Lima, Ana F. Ferreira, Bart P. van de Warrenburg, Ilse H. J. Willemse, Dagmar Timmann, Andreas Thieme, Paola Giunti, Hector Garcia‐Moreno, Magda M. Santana, Jeannette Hübener‐Schmid, Elin H. Davies, Thomas Klockgether   +20 more
wiley   +1 more source

Coexistence of Magneto-Rotational and Jeans Instabilities in an Axisymmetric Nebula

, 2018
We analyze the magneto-rotational instability (MRI) effects on gravitational collapse and its influence on the instability critical scale. In particular, we study an axisymmetric nonstratified differentially rotating cloud, embedded in a small magnetic ...
Carlevaro, Nakia, Montani, Giovanni, Palermo, Giovanni   +2 more
core   +1 more source

Intrinsic and extrinsic vortex nucleation mechanisms in the flow [PDF]

, 1996
We propose very general vortex nucleation mechanisms analogous to a hydrodynamic instability and calculate associated critical velocity in agreement with experiments.
Kusmartsev, F. V.
core   +2 more sources

Paradoxes and wonders of intrinsic disorder: Stability of instability [PDF]

Intrinsically Disordered Proteins, 2017
This article continues a series of short comments on the paradoxes and wonders of the protein intrinsic disorder phenomenon by introducing the "stability of instability" paradox. Intrinsically disordered proteins (IDPs) are characterized by the lack of stable 3D-structure, and, as a result, have an exceptional ability to sustain exposure to extremely ...
openaire   +3 more sources

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, Frédéric Demoly, Mohammad Lakhi, Bernard Rolfe, Mahdi Bodaghi   +4 more
wiley   +1 more source

On the origin of the Boson peak in globular proteins

, 2006
We study the Boson Peak phenomenology experimentally observed in globular proteins by means of elastic network models. These models are suitable for an analytic treatment in the framework of Euclidean Random Matrix theory, whose predictions can be ...
Akasaka K, Ansari A, Atilgan AR, Banavar JR, Buchenau U, Ciliberti S, Ciliberti S, De Los Rios P, Demirel MC, Doster W, Doster W, F. Piazza, Frauenfelder H, Frauenfelder H, Frauenfelder H, Frishman D, Fuentes EJ, Green JL, Grigera TS, Grigera TS, Götze W, Haliloglu T, Hao MH, Heremans K, Hinsen K, Hung AY, Iben IET, Karpov VG, Leyser H, Martín-Mayor V, Micheletti C, Mézard M, Onuchic JN, Orecchini A, P. De Los Rios, Pawson T, Piazza F, S. Ciliberti, Schirmacher W, Sheng M, Tama F, Taraskin SN, Tirion MM, Voigtmann T, Wyart M, Xie A, Yamato T   +46 more
core   +1 more source

Laser Powder Bed Fusion of Copper–Tungsten Composites for Heat Sink Applications in High‐Power Electronics

Advanced Engineering Materials, EarlyView.
This article demonstrates the successful qualification of a copper–tungsten composite for laser powder bed fusion. The resulting components exhibited high density, high thermal conductivity, and reduced thermal expansion. Heat sinks with complex geometries were successfully manufactured, clearly showcasing the material's potential for additive ...
Simon Rauh, Shashank Deepak Prabhu, Jannik Huber, Lioba Fischer, Gerhard Wolf, Nico Hempel, Peter Mayr   +6 more
wiley   +1 more source

Piezoresistive Monitoring of Carbon Nanomaterial‐Reinforced Epoxy Composites Under Cyclic and Fatigue Loading: A Review

Advanced Engineering Materials, EarlyView.
Carbon nanomaterial‐reinforced epoxy composites exhibit pronounced piezoresistive behavior, enabling intrinsic damage sensing under cyclic and fatigue loading. This review critically compares carbon nanotube and graphene systems, correlating filler content, percolation threshold, and gauge factor with sensing stability and damage evolution.
J. M. Parente, J. Nunes‐Pereira, A. P. Silva, P. N. B. Reis   +3 more
wiley   +1 more source

Soft Tissue Stabilization of Midcarpal Instability in Ehlers–Danlos Patients Using a Cadaveric Tendon Graft

Plastic and Reconstructive Surgery, Global Open
Summary:. Ehlers–Danlos syndrome (EDS) is a group of hereditary disorders that affects collagen synthesis. In the wrist, pain and midcarpal laxity may affect up to 70% of EDS patients.
Mohammed Muneer, MD, Fadi Bouri, MBBS, Kjell Van Royen, MD, Saif Badran, MD, Jorge I. Quintero, MD, MHPE, Tuna Ozyurekoglu, MD   +5 more
doaj   +1 more source