Results 81 to 90 of about 3,171 (198)
Molecular dynamics of the α relaxation during crystallization of a glassy polymer: A real-time dielectric spectroscopy study [PDF]
, 2016 9 págs.; 12 figs.; 1 tab.The change of the α relaxation process occurring during isothermal crystallization of a glassy polymer, poly(aryl ether ketone ketone), has been followed in real time through measurement of the dielectric complex permittivity ...
Baltá Calleja, Francisco José +5 more
core +1 more source
Carbon Material Films for Flexible and Efficient Electromagnetic Interference Shielding: A Review
Rare Metals, Volume 45, Issue 1, January 2026.ABSTRACT With the rapid development of technology such as the Internet and electronic devices, electromagnetic radiation pollution has become an increasingly prominent issue, which negatively impacts both human health and the normal operation of equipment.
Yu‐Xin Chen +10 more
wiley +1 more source
Advances in Materials Science and Engineering, Volume 2026, Issue 1, 2026.Additive manufacturing (AM) technology has gained significant attention due to its advantages such as design flexibility, rapid prototyping, and low‐cost production. However, the mechanical properties of printed samples often fall short of those of traditional manufacturing methods. Continuous fiber reinforcement is an effective approach to improve the
Mohammad Khodabandeh +4 more
wiley +1 more source
Computing Multiplicative Order and Primitive Root in Finite Cyclic Group
, 2014 Multiplicative order of an element $a$ of group $G$ is the least positive integer $n$ such that $a^n=e$, where $e$ is the identity element of $G$. If the order of an element is equal to $|G|$, it is called generator or primitive root.
Dwivedi, Shri Prakash
core +1 more source
Interaction of PEKK and CF/PEKK composites with water and Skydrol
, 2023 Alléger les avions reste une problématique majeure pour l’industrie aéronautique. Le développement de composites à matrices thermoplastiques, en remplacement des thermodurcissables, permet d’obtenir des matériaux soudables et recyclables, avec une température de service supérieure.
openaire +1 more source
Experimental verification of PEKK stiffened panel under compression
Journal of Physics: Conference SeriesAbstract The paper presents the experimental strain and stress analysis of a thermoplastic composite stiffened panel subjected to compression load. The panel has five stringers with a non-symmetric design. Two panels are investigated.
Růžek, Roman +4 more
openaire +1 more source
Impact of Scannable Healing Abutment Type on the Accuracy of Implant Impression
BioMed Research International, Volume 2026, Issue 1, 2026.Objectives The objectives of this study are to determine whether scannable healing abutment (SHA) geometry affects implant‐impression accuracy compared with conventional scan bodies (SBs) and to assess the effect of a detachable cap on SHA accuracy.
Han Na Lee +4 more
wiley +1 more source
Scientific ReportsThe aim of this study is to assess color stability, solubility, and water sorption on polyether ether ketone (PEEK) and polyether ketone ketone (PEKK) after immersion in different storage conditions. Material and Methods Ninety disc-shaped specimens (8 ×
Nihan Kaya +3 more
doaj +1 more source
Aromatic polymers obtained by precipitation polycondensation: 4*. Synthesis of poly(ether ketone ketone)s [PDF]
, 1997 High molecular weight aromatic poly(ether ketone ketone)s were synthesized by the Friedel-Crafts polyacylation condensation of iso- and terephthaloyl chlorides with diphenyl ether, 1,4- and 1,3-bis(4- phenoxybenzoyl)benzenes.
Zolotukhin, M. G. +6 more
core +1 more source
International Journal of Dentistry, Volume 2026, Issue 1, 2026.Background Digital workflows have revolutionized restorative dentistry, computer‐aided design and computer‐aided manufacturing (CAD/CAM) milling, and three‐dimensional (3D) printing provide alternatives to conventional methods of fabrication of inlays, onlays, and veneers.
Syed Nahid Basheer +2 more
wiley +1 more source