Results 41 to 50 of about 3,284,407 (297)
Understanding the effect of seams on the aerodynamics of an association football [PDF]
, 2005 The aerodynamic properties of an association football were measured using a wind tunnel arrangement. A third scale model of a generic football (with seams) was used in addition to a 'mini-football'.
Carré M. J. +6 more
core +1 more source
Effective Stability in Reversible Systems [PDF]
, 1999 In this paper we present a procedure to put in normal form a nearly-integrable reversible system, not necessarily a Hamiltonian system. Furthermore, non-resonant stability estimates are obtained. As an application we discuss the case of $n$ harmonic oscillators with frequencies satisfying Diophantine conditions.
Delshams Valdés, Amadeu +1 more
openaire +2 more sources
Reverse Doppler effect in backward spin waves scattered on acoustic waves
, 2009 We report on the observation of reverse Doppler effect in backward spin waves reflected off of surface acoustic waves. The spin waves are excited in a yttrium iron garnet (YIG) film. Simultaneously, acoustic waves are also generated.
A. A. Serga +12 more
core +1 more source
Trusted Noise in Continuous-Variable Quantum Key Distribution: a Threat and a Defense
, 2016 We address the role of the phase-insensitive trusted preparation and detection noise in the security of a continuous-variable quantum key distribution, considering the Gaussian protocols on the basis of coherent and squeezed states and studying them in ...
Filip, Radim, Usenko, Vladyslav C.
core +2 more sources
Reversible Effects as Inverse Arrows
Electronic Notes in Theoretical Computer Science, 2018 Reversible computing models settings in which all processes can be reversed. Applications include low-power computing, quantum computing, and robotics. It is unclear how to represent side-effects in this setting, because conventional methods need not respect reversibility.
Heunen, Chris +2 more
openaire +4 more sources
Pediatric Blood &Cancer, EarlyView.ABSTRACT Background Despite their increased risk for functional impairment resulting from cancer and its treatments, few adolescents and young adults (AYAs) with a hematological malignancy receive the recommended or therapeutic dose of exercise per week during inpatient hospitalizations.
Jennifer A. Kelleher +8 more
wiley +1 more source
Global properties of natural scenes shape local properties of human edge detectors
Frontiers in Psychology, 2011 Visual cortex analyzes images by first extracting relevant details (e.g. edges) via a large array of specialized detectors. The resulting edge map is then relayed to a processing pipeline, the final goal of which is to attribute meaning to the scene.
Peter eNeri
doaj +1 more source
Last but not Least: Additional Positional Effects on Citation and Readership in arXiv
, 2010 We continue investigation of the effect of position in announcements of newly received articles, a single day artifact, with citations received over the course of ensuing years.
Deitrich, Dietrich, Ebbinghaus, Haque
core +1 more source
Therapeutic Apheresis and Dialysis, EarlyView.ABSTRACT Introduction Cognitive impairment and exercise intolerance are common in dialysis patients. Cerebral perfusion and oxygenation play a major role in both cognitive function and exercise execution; HD session per se aggravates cerebral ischemia in this population. This study aimed to compare cerebral oxygenation and perfusion at rest and in mild
Marieta P. Theodorakopoulou +10 more
wiley +1 more source
BMC Musculoskeletal Disorders, 2020 Background Although shoulder arthroplasty is less common than knee or hip arthroplasty, the number of procedures being performed is increasing rapidly. The treatment effect is a simple method to measure outcome of joint replacement.
Joerg Huber +5 more
doaj +1 more source