Results 61 to 70 of about 887,984 (236)

Wedge immersed thermistor bolometers [PDF]

, 1964
An immersed thermistor bolometer for the detection of ultraviolet, visible, and infrared radiation is described. Two types of immersed bolometers are discussed.
Dreyfus, M. G.
core   +1 more source

Nonsurgical Procedures for Keratoconus Management [PDF]

, 2017
Objectives. To describe the past 20 years’ correction modalities for keratoconus and their visual outcomes and possible complications. Methods. A review of the published literature related to the visual outcomes and possible complications in the context ...
García Lázaro, Santiago, García Montero, María, Gómez Sanz, Fernando J., Hernández Verdejo, José Luis, Lorente Velázquez, Amalia, Rico del Viejo, Laura   +5 more
core   +4 more sources

Effect of Oxygen Content on Surface and Subsurface Integrity During Turning of Ti–6Al–4V

Advanced Engineering Materials, EarlyView.
This study examines how oxygen content in the ambient atmosphere affects the surface and subsurface properties of Ti–6Al–4V during turning. Results show that oxygen does not influence surface roughness. However, machining in an extremely high vacuum‐adequate atmosphere increases surface hardness by up to 7.8% and induces compressive residual stresses ...
Benjamin Bergmann, Berend Denkena, Hilke Petersen, Florian Schaper   +3 more
wiley   +1 more source

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

, 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., Efron, Nathan, Gonzalez-Meijome, José, Jones, Lyndon, Lally, John, Maldonado-Codina, Carole, Nichols, Jason J., Schmidt, Tannin A., Subbaraman, Lakshman, the members of the TFOS International Workshop on Contact Lens Discomfort,, Young, Graeme   +10 more
core   +2 more sources

Effect of Laser Deoxidation on Adhesive‐Bonded Aluminum in an Oxygen‐Free Atmosphere

Advanced Engineering Materials, EarlyView.
This study investigates laser ablation of aluminum under oxygen‐free conditions. The goal is to produce oxide‐free substrates that enable improved adhesive bonding with epoxy. Optimized laser parameters (90% overlap, 300 µJ) combined with oxide‐free substrates result in the highest tensile strength of the adhesive bond.
Sandra Gerland, Finn‐Lennard Janthur, Sarah Seffer, Jörg Hermsdorf, Ludger Overmeyer, Annika Raatz   +5 more
wiley   +1 more source

Increase in choroidal thickness after blue light stimulation of the blind spot in young adults

Bioelectronic Medicine
Background Blue light activates melanopsin, a photopigment that is expressed in intrinsically photosensitive retinal ganglion cells (ipRGCs). The axons of ipRGCs converge on the optic disc, which corresponds to the physiological blind spot in the visual ...
Hosein Hoseini-Yazdi, Scott A. Read, Michael J. Collins, Hamed Bahmani, Jens Ellrich, Tim Schilling   +5 more
doaj   +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

Four‐Point Bending Tests at High Temperatures on Commercial MgO‐C Refractory Bricks with and Without Recyclate Considering Different Carbon Contents

Advanced Engineering Materials, EarlyView.
Four‐point bending tests are conducted in an argon atmosphere on commercial MgO‐C brick grades with and without MgO‐C recyclate from room temperature up to 1300 °C. No detrimental effect of the MgO‐C recyclates on bending strength is found. Instead, a decisive influence of the total carbon content is observed, with lower total carbon contents ...
Alexander Schramm, Lukas Knöchel, Thomas Schemmel, Christos G. Aneziris, Anja Weidner, Horst Biermann   +5 more
wiley   +1 more source

Al–Cu Composite Casting of Laser‐Deoxidized Copper: Bonding, Interfacial Chemistry, and Thermal Conductivity

Advanced Engineering Materials, EarlyView.
This study investigates laser‐based oxide removal of Cu inserts in oxygen‐free conditions and examines long‐term oxidation kinetics and surface chemistry under different atmospheres via X‐ray photoelectron spectroscopy. Al–Cu compound casting with differently oxidized surfaces is performed, and intermetallic phase formation, morphology, and thermal ...
Timon Steinhoff, Finn‐Lennard Janthur, Sascha Zimmermann, Sarah Seffer, Jörg Hermsdorf, René Gustus, Ludger Overmeyer, Wolfgang Maus‐Friedrichs, Hans Jürgen Maier, Christian Klose   +9 more
wiley   +1 more source

Retinal image quality in myopic children undergoing orthokeratology alone or combined with 0.01% atropine

Eye and Vision, 2023
Background The retinal image quality derived from lower-order (LOA) and higher-order aberrations (HOA) for fixed 3-mm and photopic pupil diameters, in children undergoing combined 0.01% atropine and orthokeratology (AOK) versus those receiving ...
Qi Tan, Pauline Cho, Alex L. K. Ng, George P. M. Cheng, Victor C. P. Woo, Stephen J. Vincent   +5 more
doaj   +1 more source