Results 41 to 50 of about 742,236 (299)

Fabrication of Miniaturized Variable-focus Lens Using Liquid Filling Technique [PDF]

, 2007
This paper describes a simple method for fabricating a variable-focus lens by using PDMS (polydimethylsiloxane) and filling with liquid for the variable-focus lens. The lens diameter of 2-mm was designed in this experiment and expected to reach the focal
Yang, Chung-Yao, Yang, Hsiharng, Yeh, Mau-Shiun   +2 more
core   +2 more sources

Conceptual aspects of line tensions

, 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., Kalikmanov V. I., L. Schimmele, M. Napiórkowski, Pethica B. A., Rowlinson R., Rusanov A. I., Rusanov A. I., S. Dietrich, Smirnow W. I.   +9 more
core   +1 more source

Wearable smart sensor systems integrated on soft contact lenses for wireless ocular diagnostics [PDF]

, 2017
Wearable contact lenses which can monitor physiological parameters have attracted substantial interests due to the capability of direct detection of biomarkers contained in body fluids. However, previously reported contact lens sensors can only monitor a
BL Due, BW An, C Lee, DC Rodger, DH Kim, DJ Lipomi, FJ Ascaso, G Yu, G Zheng, G-Z Chen, GA Salvatore, H Rmili, H Wu, H Yao, J Kim, J Liu, J Park, J Zhang, J-U Park, K Besteman, K Mansouri, K Mansouri, K Na, K Takei, KS Kim, LY Chen, M Kaltenbrunner, M Leonardi, M Zhang, M-S Lee, ME Welch, MS Mannoor, NM Farandos, NS Oliver, P Dmitry, P Lee, RF Service, RJ Chen, RR Nair, S Lee, S Wagner, SP Lacour, T Moser, W Hu, W Wu, X Li, YM Song, YS Rim   +47 more
core   +1 more source

Robocasting of a Water‐Based Biopolymer/WO3 Nanopowder Paste as a Precursor to Tungsten Carbide Lattices

Advanced Engineering Materials, EarlyView.
This study demonstrates a novel, additive manufacturing approach to produce complex, porous tungsten carbide structures using water‐based direct ink writing/robocasting. Leveraging a modified commercial printer and heat treatment, the process yields lightweight, electrically conductive 3D architectures capable of supporting a mechanical load.
James Bentley Bevis, Manasi Shah, Sanketh Gombi, Rodrigo Martinez‐Duarte   +3 more
wiley   +1 more source

Profile and Visual Outcome of Patients having Keratoconus Attending Tertiary Eye Hospital, Nepal

Journal of Nobel Medical College
Background: Keratoconus is a bilateral, asymmetric, chronic, progressive ectasia of the cornea in which patients experience distorted vision that is usually treated with rigid contact lenses when spectacles no longer provide adequate vision.
Pankaj Ray Adhikari, Nirmala Chaudhary, Rajiv Ranjan Karn   +2 more
doaj   +1 more source

Multimaterial Approach to Improve the Mechanical Properties of a Novel Modified Auxetic Reentrant Honeycomb Structure

Advanced Engineering Materials, EarlyView.
A multimaterial approach is introduced to improve upon auxetic structures by combining two different polymers into the same reentrant honeycomb structure via additive manufacturing. The deformation behavior as well as the resulting Poisson's ratio are thereby improved significantly.
Alexander Engel, Oraib Al‐Ketan, Anne Jung   +2 more
wiley   +1 more source

Ocular higher-order aberrations and axial eye growth in young Hong Kong children

Scientific Reports, 2018
This retrospective longitudinal analysis aimed to investigate the association between ocular higher-order aberrations (HOAs) and axial eye growth in Hong Kong children.
Jason K. Lau, Stephen J. Vincent, Michael J. Collins, Sin-Wan Cheung, Pauline Cho   +4 more
doaj   +1 more source

Comparison of Ocular Microbiome in Non-contact Lens and Contact Lens Users [PDF]

Journal of Clinical and Diagnostic Research, 2020
Introduction: The resident/normal flora of conjunctiva is linked to infections of the eye in most cases in the wake of ocular surgery, trauma, implants in the eye or contact lens-related infections.
L Raksha, GB Shantala, Nagaraju Gangashettappa, Deepa Sinha   +3 more
doaj   +1 more source

Contact mechanics for randomly rough surfaces [PDF]

, 2006
When two solids are squeezed together they will in general not make atomic contact everywhere within the nominal (or apparent) contact area. This fact has huge practical implications and must be considered in many technological applications.
Archard, Arzt, B.N.J. Persson, Barquins, Bollinne, Borri-Brunetto, Borri-Brunetto, Bureau, Bureau, Bush, Bush, Buzza, Carbone, Carbone, Derjaguin, Derjaguin, Fuller, Gao, Gibson, Greenwood, Greenwood, Greenwood, Hertz, Hui, Hyun, Israelachvili, Johnson, Johnson, Jäckle, Laguarta, Luan, Mecke, Nayak, Ocko, Persson, Persson, Persson, Persson, Persson, Persson, Persson, Persson, Persson, Persson, Persson, Restagno, Seydel, Sherge, Tabor, Vorvolakos, Yang, Zhang   +51 more
core   +3 more sources

Wafer Bonding Technologies for Microelectromechanical Systems and 3D ICs: Advances, Challenges, and Trends

Advanced Engineering Materials, EarlyView.
This review explores wafer bonding technologies, covering wafer preparation, activation methods, and bonding mechanisms. It compares direct and indirect bonding, highlights recent advancements and future trends, and examines applications in 3D integration and packaging.
Abdul Ahad Khan, Tuan‐Khoa Nguyen, Quang Thang Trinh, Nam‐Trung Nguyen, Dzung Viet Dao, Yong Zhu   +5 more
wiley   +1 more source