Results 71 to 80 of about 2,028,288 (301)

Profile blunting and flow blockage in a yield stress fluid: A molecular dynamics study

, 2008
The flow of a simple glass forming system (a 80:20 binary Lennard-Jones mixture) through a planar channel is studied via molecular dynamics simulations. The flow is driven by an external body force similar to gravity. Previous studies show that the model
D. Raabe, F. Varnik, G. Tangelder, J. J. Bishop, J. M. Haile, U. Bengtzelius, W. Götze   +6 more
core   +1 more source

Validation of the Pediatric Arthritis Ultrasound Scoring System for the Elbow, Wrist, and Finger Joints in Children With Juvenile Idiopathic Arthritis

Arthritis Care &Research, EarlyView.
Objective We aimed to validate the Pediatric Arthritis Ultrasound Scoring System (PAUSS) for upper extremity joints in children with juvenile idiopathic arthritis (JIA). Methods Children with JIA were evaluated for elbow, wrist, or finger arthritis by clinical examination (CE) and musculoskeletal ultrasound (MSUS) with images scored according to the ...
Patricia Vega‐Fernandez, Pinar Ozge Avar‐Aydin, Kelly Rogers, Daniel J. Lovell, Jennifer Huggins, Alexei Grom, Hermine I. Brunner, Grant S. Schulert, Sheila T. Angeles‐Han, Mekibib Altaye, Amy Cassedy, Arthur B. Meyers, Tracy V. Ting   +12 more
wiley   +1 more source

Stabilization of nonlinear velocity profiles in athermal systems undergoing planar shear flow

, 2005
We perform molecular dynamics simulations of model granular systems undergoing boundary-driven planar shear flow in two spatial dimensions with the goal of developing a more complete understanding of how dense particulate systems respond to applied shear.
Corey S. O’Hern, J. P. Hansen, J. T. Jenkins, Lou Kondic, Ning Xu, W. H. Press   +5 more
core   +1 more source

Does Long‐Term Lower Extremity Strength Training in Adults With Knee Osteoarthritis and Varus Alignment Reduce Knee Joint Loading During Gait?

Arthritis Care &Research, EarlyView.
Objective We examined whether 18 months of strength training in individuals with knee varus alignment and medial tibiofemoral osteoarthritis (OA) reduced knee joint loads during walking compared to an attention control group. Methods This study was a secondary analysis of a randomized clinical trial that compared the effects of strength training to a ...
Stephen P. Messier, Matthew N. Vigliotti, Paige E. Rice, Brian Pietrosimone, Shannon L. Mihalko, Edward H. Ip, Richard F. Loeser, David J. Hunter, Ali Guermazi, Ryan Hill, Santiago Saldana, Kim L. Bennell, Paul DeVita   +12 more
wiley   +1 more source

Iterative design for active control of fluid flow

, 2003
This paper considers iterative controller design for planar Poiseuille flow by model unfalsification and controller redesign. The main contribution is to show that model-unfalsification-based iterative design can be useful in flow control problems. The a
Baramov, L., Rogers, E., Tutty, O.R., Veres, S.M.   +3 more
core   +1 more source

Self-excited vibrations of a non-smooth contact dynamical system with planar friction based on the shooting method

International Journal of Mechanical Sciences, 2018
This paper deals with the computation of non-linear dynamic steady-state solutions of autonomous non-smooth contact systems prone to mono-instability. The addressed issue is the use of the shooting method in order to determine periodic solutions of self ...
L. Charroyer, O. Chiello, J. Sinou
semanticscholar   +1 more source

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

Advanced 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, Varma Kvvssn, Hossein Laieghi, Zia Uddin, Peyman Ansari, E. Kıvanç Sadak, Can Barış Toprak, Hüseyin Kızıl, Enrico Salvati   +8 more
wiley   +1 more source

Scaling of thermal conductivity of helium confined in pores

, 2001
We have studied the thermal conductivity of confined superfluids on a bar-like geometry. We use the planar magnet lattice model on a lattice $H\times H\times L$ with $L \gg H$.
A. M. Kahn, B. I. Hohenberg, B. I. Hohenberg, C. DeDominicis, C. DeDominicis, E. Brezin, E. D. Siggia, Efstratios Manousakis, F. M. Gasparini, F. R. Brown, G. Ahlers, G. Ahlers, G. Ahlers, G. Ahlers, G. Ahlers, J. A. Lipa, J. A. Lipa, J. A. Lipa, J. Frank, J. K. Bhattacharjee, J. Kerrisk, K. Nho, Kwangsik Nho, L. S. Goldner, M. Dingus, M. E. Fisher, M. E. Fisher, M. E. Fisher, M. Krech, M. Krech, N. Schultka, N. Schultka, N. Schultka, N. Schultka, N. Schultka, P. C. Hohenberg, P. C. Hohenberg, R. A. Ferrell, R. A. Ferrell, R. A. Ferrell, R. Schmolke, S. Mehta, S. Mehta, T. C. P. Chui, T. Matsubara, T. Matsubara, T. Matsubara, U. Wolff, V. Dohm, V. Dohm, V. Dohm, V. Dohm, V. Dohm, V. Dohm, V. Dohm, V. Privman, W. Koch, W. Koch, W. Y. Tam, W. Y. Tam   +59 more
core   +1 more source

Experimental Evaluation of 100Cr6 Steel Microindented Surfaces Under Lubricated Nonconformal Point Contacts

Advanced Engineering Materials, EarlyView.
The tribological behavior of 100Cr6 steel spheres textured via Vickers microindentation is evaluated under lubricated sliding by varying both dimple size and density. Fine and dense textures significantly reduce friction across all lubrication regimes, while large dimples increase it.
Farideh Davoodi, Pasquale Guglielmi, Gianfranco Palumbo, Giuseppe Carbone   +3 more
wiley   +1 more source

Tracking control of an underactuated rigid body with a coupling input force

Archives of Control Sciences, 2014
This paper presents a set of basic problems concerning the control of an underactuated dynamic system. Exemplary system of a planar rigid body with a coupling input force is described. Lie brackets method is used to show accessibility of the system.
Korczak Sebastian
doaj   +1 more source