Results 221 to 230 of about 100,965 (261)

Corneal thickness variation during eight-incision radial keratotomy

Journal of Cataract and Refractive Surgery, 1997
To determine the degree of corneal thickness variability that may be encountered during routine radial keratotomy (RK) surgery.Office refractive surgical suite. Laurel Eye Clinic, Brookville, Pennsylvania.This study statistically analyzed variability in corneal thickness measured at the optical zone in 140 consecutive eight-incision RK cases ...
L D, Nichamin, M G, Raanan
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Diurnal Variation of Corneal Topography After Radial Keratotomy

Archives of Ophthalmology, 1992
A computerized videokeratography system was used to evaluate diurnal changes in corneal curvature of both untreated and surgically treated eyes of 11 patients who had undergone unilateral radial keratotomy. The mean postoperative interval was 34.5 months.
S, Kwitko, D C, Gritz, J J, Garbus, W J, Gauderman, P J, McDonnell   +4 more
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Variation of Radial Elasticity in Multiwalled Carbon Nanotubes

Nano Letters, 2007
Correlations between the local diameter and local radial elastic modulus in multiwalled carbon nanotubes (MWNTs) were investigated via ultrasonic force microscopy. Spatial cross-correlation analysis showed that local radial modulus variations were inversely correlated with local diameter gradients ("bamboo" structures) in MWNTs grown via chemical vapor
Lata, Muthaswami, Yuegui, Zheng, Robert, Vajtai, G, Shehkawat, Pulickel, Ajayan, Robert E, Geer   +5 more
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Radial Velocity Variations of HR 6684

Publications of the Astronomical Society of the Pacific, 1974
Photometric and spectroscopic observations of HR 6684 confirm the photometric period of 0.139890 day and show a well-defined velocity variation with an amplitude of 11.3 km sec-1 in the same period.
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Radial Velocity Variations in Cool Supergiants

International Astronomical Union Colloquium, 1984
AbstractA survey of F, G, and W supergiants has been carried out with the DAO radial velocity spectrometer, an efficient instrument for detecting low-amplitude velocity variations in cool stars. Observations of 78 stars over five seasons show generally good agreement with OORAVEL results for spectroscopie binaries.
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Variations of Origin of Radial Artery

Introduction: Radial artery is the smaller terminal branch of brachial artery arising in the cubital fossa, at the level of the neck of radius. This artery is commonly used to do coronary artery angiography, canulation. Aim: To study variations in the origin of radial artery. Various variations in the origin of radial artery were reported earlier, high
P. Nikhila Ratna, T. Neeraja, S. Suneetha, S. Ravindrakishore, D. Radhika   +4 more
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Radial variation of lunar crater rim topography

Icarus, 1977
The paper presents results of determinations of variations of rim topography as a function of range from the crater rim for a group of morphologically fresh craters. It is found that the rate at which exterior crater topography converges with the surrounding surface is highly variable among different radial directions at individual craters as well as ...
Mark Settle, James W. Head
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Temperature variation in radial turning

Procceedings of the 12th Brazilian Congress on Manufacturing Engineering, 2023
Theodor Rucker van Caspel, michel Tavares, Claudio Abilio da Silveira, Rolf Schroeter   +3 more
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Radial variation of track damage in polycarbonate

Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 2004
Abstract Several authors reported data showing a differentiated structure of ion tracks in some polymers, when analysed at submicroscopic level. Four zones can be distinguished: core, halo, cross-linking and bulk, at least in tracks produced by ions with specific energies higher than 0.2 MeV/n.
D.H. Francisco, L. Vanni, O.A. Bernaola, G. Saint Martin, A. Filevich   +4 more
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On radial variation of bounded analytic functions

Complex Variables, Theory and Application: An International Journal, 1990
Given any positive function r(r) defined on [0.1] and tending to 0 as r →1 we prove that there exists a function f in the algebra 4 of functions analytic on the unit disk Δ and continuous on Δ so that for almost all θ This result, together with an old result of A. Zygmund, shows that the sharp radial variation of H x functions is for almost all θ.
D.J. Hallenbeck, K. Samotij
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