Results 1 to 10 of about 25,626 (168)
Frontiers in Public Health, 2022 BackgroundOver one billion people worldwide live with avoidable blindness or vision impairment. Eye Health Programmes tackle this by providing screening, primary eye care, refractive correction, and referral to hospital eye services.
Asad Aslam Khan +12 more
doaj +1 more source
Retention force of overdenture retained with telescopic crowns: A comparison of polyether ether ketone and zirconia ceramic telescopic crowns [PDF]
Srpski Arhiv za Celokupno Lekarstvo, 2020 Introduction/Objective. Recently, new materials for double crowns have been introduced, such as zirconia and polyether ether ketone (PEEK). However, some characteristics of these materials, such as retentive force and duration of “settling in phase ...
Milić-Lemić Aleksandra +6 more
doaj +1 more source
Eskişehir Osmangazi Üniversitesi Mühendislik ve Mimarlık Fakültesi Dergisi, 2022 Bu çalışmada, %30 cam elyaf (CE) katkılı poli-eter-eter-keton (PEEK) polimerinin termoset poliester kompozit ve AISI 316L paslanmaz çelik diske karşı kuru ortam şartları altında sürtünme ve aşınma özellikleri incelenmiştir. Sürtünme ve aşınma çalışmaları
Veysel Furkan Ünal +2 more
doaj +1 more source
Improvement studies for equitable and evidence-based innovation: an overview of the ‘IM-SEEN’ model
International Journal for Equity in Health, 2023 Background Health inequalities are ubiquitous, and as countries seek to expand service coverage, they are at risk of exacerbating existing inequalities unless they adopt equity-focused approaches to service delivery.
Luke N. Allen +14 more
doaj +1 more source
EXPERIMENTAL SETTING FOR TESTING THE BOND STRENGTH BETWEEN METAL ALLOY AND PEEK [PDF]
Journal of IMAB, 2021 Purpose: The aim of the article is to present an experimental setting for bending strength testing of metal specimens covered with PEEK. Materials and methods: Three groups of metal specimens made of cobalt chromium alloy are produced using the lost wax
Zhivko Georgiev +2 more
doaj +1 more source
Lithium disilicate and PEEK implant-retained single crowns - a randomized, prospective clinical study [PDF]
Srpski Arhiv za Celokupno Lekarstvo, 2022 Introduction/Objective. Comparing two materials under the same conditions is the best way to define differences between them. Ceramic-reinforced polyether-etherketone (PEEK) is a polymer that has many possible uses in dentistry as already well-known ...
Joksimović Ena +5 more
doaj +1 more source
Direct Iminization of PEEK [PDF]
Macromolecules, 2011 Semi-crystalline poly(ether ketone)s are important high-temperature engineering thermoplastics, but are difficult to characterize at the molecular level because of their insolubility in conventional organic solvents. Here we report that polymers of this type, including PEEK, react cleanly at high temperatures with low-volatility aralkyl amines to ...
Manolakis, Ioannis +2 more
openaire +1 more source
Application of Collar Seals for Bearings in the Lunar Exploration Rover
Tribology Online, 2020 A lot of exploration missions have been planned for the moon, and lunar activity is likely to increase. The moon’s surface is covered by a great deal of dust, called regolith, and these particles can seriously damage mechanical components.
Koji Matsumoto +6 more
doaj +1 more source
Physics Letters B, 2021 6 pages, 8 figures, text clarified, references added, systematic errors estimated, argument on surface tension omitted, Fig.7 added to clarify the limitation of the method, no significant change in conclusion.
Ryuichiro Kitano +3 more
openaire +2 more sources
Study Of the compression behaviours of 3D-printed PEEK/CFR-PEEK sandwich composite structures
Virtual and Physical Prototyping, 2022 Single-component materials and homogeneous structures cannot adequately meet the various demands of ideal bone implants. Therefore, the use of three dimensional (3D) printing to form multi-materials and composites has received considerable attention ...
Houfeng Jiang +3 more
doaj +1 more source