Results 31 to 40 of about 27,270 (239)
The Effect of Primer on Bond Strength of Silicone Prosthetic Elastomer to Polymethylmethacrylate: An in vitro Study [PDF]
Journal of Clinical and Diagnostic Research, 2015 Introduction: The aim of the study is to evaluate interfacial bond strength between silicone prosthetic elastomers and polymethylmethacrylate (PMMA).
Harsh Patel +5 more
doaj +1 more source
Overcoming Van der Waals Forces in reconfigurable nanostructures [PDF]
arXiv, 2022 Reconfigurable metamaterials require constituent nanostructures to demonstrate switching of shapes with external stimuli. For generality, such nanostructures would touch and stick to other surfaces in one of its configurations. Yet, a longstanding challenge is in overcoming this stiction caused by Van der Waals forces, which impedes shape recovery ...
arxiv
Measurement of high-pressure xenon gas absorption in acrylic [PDF]
, 2022 Acrylic is a popular structural material in experiments requiring low background because of its radio-purity, machinability, and mechanical strength. However, its porosity may cause significant gas absorption and influence the detector stability in the long term.
arxiv +1 more source
Study the FTIR of Hydroxyapatite Additive to Heat Cured Acrylic Resin [PDF]
Al-Rafidain Dental Journal, 2014 To evaluate the FTIR of Hydroxyapatite additives 2 %, and 5 % of dry (HAP) prepared from egg shells to the polymer. Materials and Methods: Thirty six specimens of heat cured acrylic resin and other specimens of heat cured acrylic resin with 2 % and or ...
Zena J Hassan +2 more
doaj +1 more source
UV Degradation of the Optical Properties of Acrylic for Neutrino and Dark Matter Experiments [PDF]
JINST 4:T09001,2009, 2009 UV-transmitting (UVT) acrylic is a commonly used light-propagating material in neutrino and dark matter detectors as it has low intrinsic radioactivity and exhibits low absorption in the detectors' light producing regions, from 350 nm to 500 nm. Degradation of optical transmittance in this region lowers light yields in the detector, which can affect ...
arxiv +1 more source
Electronic Physician, 2016 Background: It is not yet clear from the current literature to what extent masticatory muscle activity is affected by the use of flexible acrylic resin in the construction of implant-supported mandibular overdentures.
Eman Mostafa Ahmed Ibraheem +1 more
doaj +1 more source
3D Printing Neutron Detectors using Scintillating BN/ZnS Resin [PDF]
, 2020 In this paper we demonstrate that it is possible to produce low cost neutron-sensitive detectors using stereo-lithography additive manufacturing. A curable scintillating resin is made by mixing BN:ZnS with a commercially available UV resin. This resin is used to print several small area neutron detectors made of arrays of BN:ZnS cones that can be ...
arxiv +1 more source
Acrylic denture base repair (Part II): St-rength of acrylic denture base cured by four different techniques [PDF]
Al-Rafidain Dental Journal, 2006 Aim: To investigate the effect of repair techniques, surface treatment, and repair space design (3 mm space and no repair space) on the transverse, and tensile strengths of repaired denture base. Materials and methods: Four hundred and sixteen samples of
Repair acrylic denture base, microwave, thermo press. +1 more
doaj +1 more source
Shelf-stable quantum-dot light-emitting diodes with high operational performance [PDF]
arXiv, 2020 Quantum-dot light-emitting diodes (QLEDs) promise high-performance and cost-effective electroluminescent devices. However, shelf stability of QLEDs, a must for practical applications, is currently overlooked. Here we reveal that the state-of-the-art QLEDs exhibit abnormal shelf-ageing behaviours, i.e., improvements in performance (positive ageing ...
arxiv
Measurement of Optical Attenuation in Acrylic Light Guides for a Dark Matter Detector [PDF]
JINST, 9, P02002, 2014, 2013 Acrylic is a common material used in dark matter and neutrino detectors for light guides, transparent vessels, and neutron shielding, creating an intermediate medium between the target volume and photodetectors. Acrylic has low absorption within the visible spectrum and has a high capture cross section for neutrons.
arxiv +1 more source