Results 31 to 40 of about 901,630 (347)

Dehn surgery, rational open books and knot Floer homology

open access: yes, 2012
By recent results of Baker--Etnyre--Van Horn-Morris, a rational open book decomposition defines a compatible contact structure. We show that the Heegaard Floer contact invariant of such a contact structure can be computed in terms of the knot Floer ...
Hedden, Matthew, Plamenevskaya, Olga
core   +1 more source

A contact lens with built-in display: science fiction or not? [PDF]

open access: yes, 2013
Recent progress in microsystems integration technology such as ultra-thin chip packaging, stretchable interconnections, thin-film batteries and organic photovoltaics makes it feasible to incorporate various electronic components and transducers in ...
Cuypers, Dieter   +4 more
core   +1 more source

Contact Lens History, Contact Lens Types and Future of Contact Lens

open access: yesKırklareli Üniversitesi Mühendislik ve Fen Bilimleri Dergisi
With the rapid development of technology, the use of different materials and device production for sharp vision has accelerated. One of the areas that benefit from developing technology is contact lens technology. In this study, the production-development stages of contact lenses, contact lens types, and materials used in production were investigated ...
Hülya Kuru Mutlu   +2 more
openaire   +2 more sources

Rethinking contact lens aftercare [PDF]

open access: yesClinical and Experimental Optometry, 2017
The evolution of contact lens technology and clinical practice over the past three decades has been remarkable, with dramatic improvements in material biocompatibility, better lens designs and care systems, and more flexible and convenient modalities of wear. However, our approach to the aftercare examination has remained conservative, with the general
Efron, Nathan, Morgan, Philip
openaire   +4 more sources

Short-Term Effect of Low-Dose Atropine and Hyperopic Defocus on Choroidal Thickness and Axial Length in Young Myopic Adults

open access: yesJournal of Ophthalmology, 2019
Purpose. To examine the interaction between a short period of hyperopic defocus and low-dose atropine upon the choroidal thickness and ocular biometrics of healthy myopic subjects. Methods.
Beata P. Sander   +2 more
doaj   +1 more source

Terahertz-based system for dehydration analysis of hydrogel contact lenses [PDF]

open access: yes, 2019
The use of terahertz-based techniques has grown very fast since they are capable of performingevaluations at molecular level, being very suitable for the analysis of biological samples and bioma-terials such as those for contact lenses.
Burgos Fernández, Francisco Javier   +3 more
core   +2 more sources

The TFOS international workshop on contact lens discomfort: report of the contact lens materials, design, and care subcommittee [PDF]

open access: yes, 2013
Jones, L., Brennan, N. A., González-Méijome, J., Lally, J., Maldonado-Codina, C., Schmidt, T. A., … Nichols, J. J. (2013). The TFOS International Workshop on Contact Lens Discomfort: Report of the Contact Lens Materials, Design, and Care Subcommittee ...
Brennan, Noel A.   +10 more
core   +2 more sources

Effects of Different Contact Lens Designs on Visual Quality Among the Soft Spherical Contact Lens Users

open access: yesTürk Oftalmoloji Dergisi, 2013
Purpose: To evaluate the effects of different lens designs on visual quality among soft spherical contact lens users. Material and Method: Forty eyes of twenty patients from our contact lens unit were included in this study.
Mustafa Demir   +2 more
doaj   +1 more source

Conceptual aspects of line tensions

open access: yes, 2007
We analyze two representative systems containing a three-phase-contact line: a liquid lens at a fluid--fluid interface and a liquid drop in contact with a gas phase residing on a solid substrate.
Gibbs J. W.   +9 more
core   +1 more source

Laser Metal Deposited Ti4822 Hollow Pipe: Experimental and Computational Modelling Study

open access: yesAdvanced Engineering Materials, EarlyView.
Laser metal deposition (LMD) of a crack‐free built Ti4822 alloys is challenging. This article reports outstanding characteristics of a hollow pipe that is built with LMD technology when a predicted, nontransformation substrate temperature of 800 °C is used.
Sadiq A. Raji   +5 more
wiley   +1 more source

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