Results 21 to 30 of about 303,599 (157)

Assessment of stereoscopic optic disc images using an autostereoscopic screen - experimental study [PDF]

, 2008
BACKGROUND: Stereoscopic assessment of the optic disc morphology is an important part of the care of patients with glaucoma. The aim of this study was to assess stereoviewing of stereoscopic optic disc images using an example of the new technology of ...
Habib, M.S., Lowell, J.S., Habib, Maged, Nick S Holliman, Andrew Hunter, Hunter, Andrew, Andrew Hunter, A., James A Lowell, Holliman, Nick, David HW Steel, Daniella Vaideanu, Hildreth, A., Anthony Hildreth, Vaideanu, D., Holliman, N.S., Maged S Habib, Steel, D.H.W., Vaideanu, Daniella, Steel, David, Lowell, James, Hildreth, Anthony   +20 more
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Extrait d'Au service de la France de Raymond Poincaré, 1930

, 1995
Poincaré Raymond. Extrait d'Au service de la France de Raymond Poincaré, 1930. In: Bulletin d'histoire de l'électricité, n°25, juin 1995.
Poincaré, Raymond
core   +1 more source

Global dynamics of a non-symmetric cubic Lienard system

四川大学学报. 自然科学版, 2022
In this paper, we study global dynamics of a cubic non-symmetric Lienard system with global parameters, i.e., parameters are not required to be sufficiently small.
SUN Shu-Ting, CHEN Xing-Wu
doaj  

Rigid Polynomial Differential Systems with Homogeneous Nonlinearities

Mathematics
Planar differential systems whose angular velocity is constant are called rigid or uniform differential systems. The first rigid system goes back to the pendulum clock of Christiaan Huygens in 1656; since then, the interest for the rigid systems has been
Jaume Llibre
doaj   +1 more source

Global dynamics of a planar Filippov system with a regular-SN

四川大学学报. 自然科学版, 2022
In this paper, we investigate the global dynamics of a planar Filippov system with a regular-SN for general parameters not required to be sufficiently small.
LI Jia-Hao, CHEN Xing-Wu
doaj  

Bonnesen-style symmetric mixed inequalities

Journal of Inequalities and Applications, 2016
In this paper, we investigate the symmetric mixed isoperimetric deficit Δ 2 ( K 0 , K 1 ) $\Delta_{2}(K_{0},K_{1})$ of domains K 0 $K_{0}$ and K 1 $K_{1}$ in the Euclidean plane R 2 $\mathbb{R}^{2}$ .
Pengfu Wang, Miao Luo, Jiazu Zhou
doaj   +1 more source

Quadratic systems with two invariant real straight lines and an invariant parabola

Electronic Journal of Qualitative Theory of Differential Equations
After the linear differential systems in the plane the easiest ones are the quadratic polynomial differential systems. Due to their nonlinearity and also to their many applications these systems have been studied by many authors. Let QS denote the set of
Jaume Llibre, Huaxin Ou
doaj   +1 more source

Global Analysis of a Liénard System with Quadratic Damping

Discrete Dynamics in Nature and Society, 2018
In this paper, the global analysis of a Liénard equation with quadratic damping is studied. There are 22 different global phase portraits in the Poincaré disc.
Feng Guo
doaj   +1 more source

Effects of Tilting Pad Journal Bearing Design Parameters on the Pad-Pivot Friction and Nonlinear Rotordynamic Bifurcations

Applied Sciences, 2020
This study numerically analyzes and investigates the effects of the bearing design parameters of a tilting pad journal bearing (TPJB) on the pad-pivot friction-induced nonlinear rotordynamic phenomena and bifurcations.
Sitae Kim, Sangwon Byun, Junho Suh
doaj   +1 more source

Age effect on retina and optic disc normal values [PDF]

, 2005
Purpose: To investigate retinal thickness and optic disc parameters by the Retinal Thickness Analyzer (RTA) glaucoma program in older normal subjects and to determine any age effect.
Chryssafis, C., Hirneiß, Christoph, Neubauer, A. S., Tsinopoulos, I., Kampik, Anselm, Thiel, M.   +5 more
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