نتایج جستجو برای: corneal visco

تعداد نتایج: 30157  

A. Ghorbanpour-Arani, M. Shokravi

This paper is concerned with the surface and small scale effects on transverse vibration of a viscoelastic single-layered graphene sheet (SLGS) subjected to an in-plane magnetic field. The SLGS is surrounded by an elastic medium which is simulated as Visco-Pasternak foundation. In order to investigate the small scale effects, the nonlocal elasticity theory is employed due to its simplicity and ...

Journal: :Annals of palliative medicine 2021

Background: To investigate the relationship between high-order aberration (HOA) changes and RCST/CT (residual corneal stroma thickness/corneal thickness) after femtosecond LASIK surgery.

ژورنال: بینا 2019
Abolhosseini, M., Javadi, MA, Moshtaghion, MM, Rezaei Kanavi ‎, M., Safi, S.,

Purpose: To report a 3-decade eye bank data and activity of the Central Eye Bank of Iran (CEBI). Methods: All the eye bank records in terms of procured eyes, utilized tissues, corneal transplants per capita, and indications for keratoplasty over the last 3 decades were analyzed. Results: During the last 27 years, 115 743 whole eyes were donated, among which 114 169 eyes were donated between 199...

Journal: :Journal of biomechanics 2006
Cassie Wilson Mark A King Maurice R Yeadon

The determination of subject-specific model parameter values is necessary in order for a computer simulation model of human motion to be evaluated quantitatively. This study used an optimisation procedure along with a kinematically driven simulation model of the contact phase in running jumps to determine the elastic parameters of segmental wobbling masses and the foot-ground interface. Kinetic...

2004
Bernard Meulenbroek Cornelis Storm Alexander N. Morozov Wim van Saarloos

It is well known that the Poiseuille flow of a visco-elastic polymer fluid between plates or through a tube is linearly stable in the zero Reynolds number limit, although the stability is weak for large Weissenberg numbers (Wi). In this paper, we argue that recent experimental and theoretical work on the instability of visco-elastic fluids in Taylor–Couette cells and numerical work on channel f...

2013
Rita Choudhury Sajal Kumar Das

An analysis of free convective MHD visco-elastic fluid flow with heat and mass transfer over a vertical plate moving with a constant velocity in presence of Dufour and Soret effects has been presented. The fluid is considered to be non-Newtonian characterized by Walters liquid (Model B′). The surface temperature is assumed to oscillate with small amplitude about a non-uniform mean temperature. ...

2015
Miguel Molerón Marc Serra-Garcia Chiara Daraio

Miguel Molerón, Marc Serra-Garcia, Chiara Daraio Department of Mechanical and Process Engineering, Swiss Federal Institute of Technology (ETH), Zurich, Switzerland (Dated: November 19, 2015) Abstract We theoretically and experimentally investigate visco–thermal effects on the acoustic propagation through metamaterials consisting of rigid slabs with subwavelength slits embedded in air. We demons...

2017
Cassie Wilson Mark A. King Maurice R. Yeadon

The determination of subject-specific model parameter values is necessary in order for a computer simulation model of human motion to be evaluated quantitatively. This study used an optimisation procedure along with a kinematically-driven simulation model of the contact phase in running jumps to determine the elastic parameters of segmental wobbling masses and the foot-ground interface. Kinetic...

حسن هاشمی, , سیدمحمد میرآفتاب, ,

PTK (Phototherapeutic Keratectomy) is the use of laser in corneal diseases. We can replace PTK for many other invasive procedures. The objective of this study is the assessment of this procedure in several cases in our practice. This investigation was a retrospective study, which was conducted based on comparison of 11 eyes with corneal eschars, induced by recurrent corneal erosions, pterygium ...

Objective- To compare the effects of topical eye-drop and subconjunctival administration of diclofenac on improvement of experimental corneal alkali wound in rabbits eyes. Design- Experimental study. Animal- fifteen rabbits. Procedures- Alkali wounds were inflicted on the central corneas of 15 rabbits which we...

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