Results 181 to 190 of about 3,130,711 (363)

Adaptive optics: principles and applications in ophthalmology

Eye, 2020
Engin Akyol, Ahmed M. Hagag, S. Sivaprasad, A. Lotery   +3 more
semanticscholar   +1 more source

A near-infrared spectrometer optimized for an adaptive optics system [PDF]

, 1999
K. L. Thompson
openalex   +1 more source

Log file‐based quality assurance method for respiratory gating system

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Background As medical linear accelerator technology advances, enabling higher dose rate deliveries, hypofractionation regimens has increased. This necessitates respiratory gating systems that synchronize radiation delivery with tumor position, requiring simple rigorous quality assurance (QA) to ensure treatment accuracy and patient safety ...
Wonjoong Cheon, Young Kyu Lee, Yunji Seol, Chan‐beom Park, Hong Qi Tan, Kyu Hye Choi, Young‐nam Kang, Byung Ock Choi   +7 more
wiley   +1 more source

Telescope Alignment Method Using a Modified Stochastic Parallel Gradient Descent Algorithm

Photonics
To satisfy the demands of high image quality and resolutions, telescope alignment is indispensable. In this paper, a wavefront sensorless method based on a modified stochastic parallel gradient descent algorithm (SPGD) called the adaptive moment ...
Min Li, Xin Liu, Junbo Zhang, Hao Xian
doaj   +1 more source

<title>Adaptive optics at Lick Observatory: system architecture and operations</title>

, 1994
James M. Brase, Jong R. An, K. Avicola, Horst D. Bissinger, Herbert W. Friedman, Donald T. Gavel, B. M. Johnston, C. E. Max, Scot S. Olivier, R. W. Presta, D. A. Rapp, Joseph Salmon, Kenneth E. Waltjen, William A. Fisher   +13 more
openalex   +2 more sources

Claustrum Volume Is Reduced in Multiple Sclerosis and Predicts Disability

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective The claustrum is a small, thin structure of predominantly gray matter with broad connectivity and enigmatic function. Little is known regarding the impact of claustrum pathology in multiple sclerosis (MS). Methods This study assessed whether claustrum volume was reduced in MS and whether reductions were associated with specific ...
Nicole Shelley, Bradley Judge, Dmitriy A. Yablonskiy, Robert T. Naismith, Matthew R. Brier, Anne H. Cross   +5 more
wiley   +1 more source

First results of an on-line adaptive optics system with atmospheric wavefront sensing by an artificial neural network

, 1992
Michael Lloyd‐Hart, Peter Wizinowich, B. A. McLeod, David Wittman, D’nardo Colucci, R. Dekany, Donald McCarthy, J. R. P. Anel, David G. Sandler   +8 more
openalex   +1 more source

<title>Performance predictions for the Keck telescope adaptive optics system</title> [PDF]

, 1995
Donald T. Gavel, Scot S. Olivier
openalex   +1 more source

Cerebello‐Prefrontal Connectivity Underlying Cognitive Dysfunction in Spinocerebellar Ataxia Type 2

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Spinocerebellar ataxia type 2 (SCA2) is a hereditary cerebellar degenerative disorder, with motor and cognitive symptoms. The constellation of cognitive symptoms due to cerebellar degeneration is named cerebellar cognitive affective syndrome (CCAS), which has increasingly been recognized to profoundly impact patients' quality of life;
Ami Kumar, Ruo‐Yah Lai, Zena Fadel, Yicheng Lin, Pia Parekh, Rachel Griep, Ming‐Kai Pan, Sheng‐Han Kuo   +7 more
wiley   +1 more source

Initial results from the Lick Observatory laser guide star adaptive optics system [PDF]

, 1995
Scot S. Olivier, Jong R. An, K. Avicola, Horst D. Bissinger, James M. Brase, Herbert W. Friedman, Donald T. Gavel, Bruce Macintosh, C. E. Max, Joseph Salmon, Kenneth E. Waltjen   +10 more
openalex   +1 more source