Results 41 to 50 of about 355,884 (306)
FRACTURE RESISTANCE ANALYSIS OF PEEK-POLYMER
Engineering Structures and Technologies, 2017 PEEK is a thermoplastic polymer with halfcrystallic structure – the scientific name of this material is poly(oxy- 1,4-phenylene-oxy-1,4-phenylenecarbonyl-1,4-phenylene). It has a high melt and glass transition temperatures (Tm = 340 oC, Tg = 143 oC), high chemical resistance and is melt processable.
Lesiuk, Grzegorz +3 more
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Biomedical Journal, 2019 Background: Restoration of the teeth with extensive root canals with different post systems is a challenge for clinicians. Evaluation of these systems is important for clinical success.
Caner Öztürk +4 more
doaj +1 more source
Nuclear Engineering and Technology, 2021 By using miniature SENB specimens, the fracture properties of the materials in the region of welded metal, 321 stainless steel heat affected zone, 690 alloy heat affected zone of 321/690 dissimilar metal girth welded joints were tested.
Bao Chen +5 more
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Viscoelastic Fracture of Biological Composites
, 2011 Soft constituent materials endow biological composites, such as bone, dentin and nacre, with viscoelastic properties that may play an important role in their remarkable fracture resistance.
Bouchbinder, Eran, Brener, Efim A.
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Role of the flat-designed surface in improving the cyclic fatigue resistance of endodontic NiTi rotary instruments [PDF]
, 2019 The aim of this study was to investigate the role of the flat-designed surface in improving the resistance to cyclic fatigue by comparing heat-treated F-One (Fanta Dental, Shanghai, China) nickel-titanium (NiTi) rotary instruments and similar prototypes,
D'Angelo, M. +8 more
core +1 more source
Therapeutic Apheresis and Dialysis, EarlyView.ABSTRACT Secondary hyperparathyroidism (SHPT) is a common complication in patients receiving maintenance dialysis, driven by calcium and phosphate metabolism disturbances. Calcimimetics are central to the management of SHPT by enhancing calcium‐sensing receptor sensitivity and reducing parathyroid hormone secretion.
Fumihiko Koiwa +3 more
wiley +1 more source
Molecular Oncology, EarlyView.Tumors contain diverse cellular states whose behavior is shaped by context‐dependent gene coordination. By comparing gene–gene relationships across biological contexts, we identify adaptive transcriptional modules that reorganize into distinct vulnerability axes.
Brian Nelson +9 more
wiley +1 more source
Alloy design for fracture resistance [PDF]
Proceedings of the Indian Academy of Sciences Section C: Engineering Sciences, 1980 Several methods for improving the strength of metallic materials are available and correlations between strength and various microstructural features have been established. The purpose of this paper is to review parallel developments favouring improved fracture resistance. Resistance to fracture in monotonie loading, cyclic loading and when fracture is
Prasad, YVRK, Rao, Rama P
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Journal of Pharmacy and Bioallied Sciences, 2020 Aim: The aim of this in vitro study was to evaluate the fracture resistance of anterior crown fragments using three different preparation designs and reattached using two different nanocomposites.
Roshni Chandran +3 more
doaj +1 more source
Intercompartmental communication in senescence
FEBS Open Bio, EarlyView.Senescent cells experience structural changes in the plasma membrane, endoplasmic reticulum, mitochondria, lysosomes, nucleus, and cytoskeleton. These alterations disrupt crosstalk among cellular compartments, impairing vesicular trafficking, contact sites, and molecular flow.
Krystyna Mazan‐Mamczarz +3 more
wiley +1 more source