نتایج جستجو برای: reflecting mirror

تعداد نتایج: 69005  

2003
John Lekner

Lloyd's mirror configuration has been suggested for determination of the reflection phase, in order to obtain information about the reflecting stratification. For thermal neutrons total reflection occurs at small glancing angles. We show that the phase of the reflection amplitude in total reflection is linear in the glancing angle at small angles, and determine the coefficient of proportionalit...

Journal: :Applied optics 1982
G Zhou A J Alfrey L W Casperson

The self-consistent integral equation for the field distribution of the resonant modes in a resonator with a tilted retroreflecting corner cube mirror is solved. The corner cube acts like a convex lens with radius of curvature -L cot(2)theta in the rotation direction (L is the cavity length and theta the rotation angle) and like a flat plane in the direction of the rotation axis. The field dist...

2007
Pierre Hillion

We analyse the reflection of a TM electromagnetic field first on a flat dielectric film and second on a Veselago film with negative refractive index, both films being deposited on a metallic substrat acting as a mirror. An incident harmonic plane wave generates inside a conventional dielectric film a refracted propagating wave and an evanescent wave that does not contribute to reflection on the...

2006
G. Reinaudi Z. Wang A. Couvert T. Lahaye D. Guéry-Odelin

Ultracold and slow beams have a huge potential in metrology, matter wave interferometry and nanolithography [1]. The achievement of an ultracold beam of neutrons was made possible by specularly reflecting neutrons from a Ni-surface which moved along the beam direction [2]. This breakthrough was followed by many achievements, among which neutron optics experiments [3] and neutron interferometry ...

Journal: :Brain research. Cognitive brain research 2005
Lindsay M Oberman Edward M Hubbard Joseph P McCleery Eric L Altschuler Vilayanur S Ramachandran Jaime A Pineda

Autism spectrum disorders (ASD) are largely characterized by deficits in imitation, pragmatic language, theory of mind, and empathy. Previous research has suggested that a dysfunctional mirror neuron system may explain the pathology observed in ASD. Because EEG oscillations in the mu frequency (8-13 Hz) over sensorimotor cortex are thought to reflect mirror neuron activity, one method for testi...

بهرامی, مهناز, حسن زاده, فرزانه, قندهاری, کاویان, مظلوم, سیدرضا,

Background and purpose: Stroke is one of major causes of disability and self care. Therefore, it is important to introduce and develop new treatment approaches in order to improve and enhance post stroke recovery process for medical, social and economical purposes. The aim of this study was determine the effect of mirror therapy on self care of patients with stroke. Materials and methods: This...

Journal: :The Vernal Pool 2018

Journal: : 2021

Public opinion in relation to people of the “third age” is a mirror reflecting position this group society. The growing share representatives older generation population structure, difficulties implementing pension reform make it necessary form positive public regarding social community age”. purpose article was analyse technologies used by authorities Sverdlovsk region based on materials socio...

Journal: :Physical review. E, Statistical, nonlinear, and soft matter physics 2005
M Martínez-Mares P A Mello

We propose a model to describe the statistical properties of wave scattering through a classically chaotic cavity in the presence of surface absorption. Experimentally, surface absorption could be realized by attaching an "absorbing patch" to the inner wall of the cavity. In our model, the cavity is connected to the outside by a waveguide with N open modes (or channels), while an experimental p...

Journal: :The Behavioral and brain sciences 2013
Elizabeth Ann Simpson Pier Francesco Ferrari

Based on mirror neurons' properties, viewers are emotionally engaged when observing others - even when not actively interacting; therefore, characterizing non-participatory action-viewing as isolated may be misleading. Instead, we propose a continuum of socio-emotional engagement. We also highlight recent developmental work that uses a second-person perspective, investigating behavioral, physio...

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