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Blending Dual Time Stepping and Newton-Krylov Methods for Unsteady Flows
Blending Dual Time Stepping Newton-Krylov Methods Unsteady Flows
2015/7/3
We explore the idea of using nonlinear schemes as preconditioners in Newton-Krylov schemes for unsteady flow computations. Analysis shows that left preconditioning changes the Newton scheme in a...
An Assessment of Dual-Time Stepping, Time Spectral and Artificial Compressibility based Numerical Algorithms for Unsteady Flow with Applications to Flapping Wings
Assessment Dual-Time Stepping Time Spectral Compressibility based Numerical Algorithms Unsteady Flow Flapping Wings
2015/7/3
The objective of this study is to compare and contrast three numerical algorithms that can be used to estimate the forces and pressure distribution on wings in flapping motion. All algorithms ar...
Monotonicity preserving multigrid time stepping schemes for conservation laws
Monotonicity preserving multigrid stepping schemes conservation laws
2015/7/2
In this paper, we propose monotonicity preserving and total variation diminishing (TVD) mul tigrid methods for solving scalar conservation laws. We generalize the upwind-biased residual restriction an...
Aerodynamic Shape Optimization of Airfoils in Ultra-Low Reynolds Number Flow using Simultaneous Pseudo-Time Stepping
Ultra-Low Reynolds Number Flow Shape Optimization of
2015/6/23
The paper presents numerical results of optimized airfoils at ultra-low
Reynolds numbers. These investigations are carried out to understand the aerodynamic
issues related to the low speed and micro...
Applications of Dual Time Stepping to Fully Implicit Runge-Kutta Schemes for Unsteady Flow Calculations
Unsteady Flow Calculations Time Stepping
2015/6/18
Accordingly, a fast steady state solver is an essential building block for an implicit
scheme. This leads to a circular situation. We need an implicit scheme for fast
convergence to a steady state, ...
Stepping Stone,Stopping Point,or Slippery Slope?Negotiating the Next Iran Deal
Negotiations Nuclear Conflict Resolution Winning Coalition Blocking Coalition Strategy
2015/4/29
The November 2013 "interim" nuclear deal between Iran and the "P5+1"—the United States, Russia, China, Britain, France, and Germany—raises challenging questions. Will the initial deal function as a st...
Bilateral ground reaction forces and joint moments for lateral sidestepping and crossover stepping tasks
Badminton movement biomechanics injury
2015/4/21
Racquet sports have high levels of joint injuries suggesting the joint loads during play may be excessive. Sports such as badminton employ lateral sidestepping (SS) and crossover stepping (XS) movemen...
Pedometer Accuracy During Stair Climbing and Bench Stepping Exercises
Digi-walker LIFECORDER activity monitor accelerometer
2015/4/8
The purpose of the present investigation was to examine pedometer accuracy during stair climbing and descending as well as during the performance of a bench stepping exercise. Ten healthy men particip...
Stepping stones and stumbling blocks.Why negation accelerates and additive particles delay the acquisition of finiteness in German
Stepping stones stumbling blocks negation accelerates additive particles delay the acquisition of finiteness German
2015/4/7
This paper deals with a crucial step in the early development of German as a first or a second language. First and (untutored) second language learners are known to develop early learner varieties tha...
Twelve stepping on the margins: a neo-pagan case study in overcoming adversity
margins overcoming adversity
2014/12/10
Substance abuse is a pervasive threat to the well-being of individuals, families and the public sector. One of the most well-known and widely available options for substance abuse assistance in the Un...
Twelve stepping on the margins: a neo-pagan case study in overcoming adversity
Twelve stepping overcoming adversity
2014/11/7
Substance abuse is a pervasive threat to the well-being of individuals, families and the public sector. One of the most well-known and widely available options for substance abuse assistance in the Un...
Detection of Lying Down, Sitting, Standing, and Stepping Using Two ActivPAL Monitors
PHYSICAL,ACTIVITY SEDENTARY WALKING JOGGING BODY,POSTURE
2017/5/24
The activPAL is an accelerometer-based monitor worn on the thigh that classifies daily activities into three categories (sitting/lying down, standing, and stepping). The monitor discriminates between ...
Comparing Aftereffects after Split-Belt Treadmill Walking and Unilateral Stepping
STEP,LENGTH GAIT ADAPTATION LEARNING ASYMMETRY REHABILITATION
2017/5/23
Asymmetric step length is a problem common to many orthopedic and neurologic populations. Herein, we compare step length aftereffects during overground gait after two rehabilitation intervention strat...
Evaluating the effects of open/closed eyes and age-related differences on center of foot pressure sway during stepping at a set tempo
Elderly Dynamic Balance Tempo Stepping Center of Foot Pressure (COP)
2013/1/28
This study aimed to examine the effects of open/ closed eyes and age difference on Center of Foot Pressure (COP) sway during stepping. The subjects were 87 healthy males aged 10 - 80 years. COP was me...
Stepping Stones versus Dead End Jobs: Exits from Temporary Contracts in Italy after the 2003 Reform
mixed multinomial logit discrete duration data temporary jobs
2012/10/23
In this paper we study labor market transitions out of temporary jobs in Italy focussing on an interesting period of the Italian recent history: the one immediately following the last labor market ref...
