Results 101 to 110 of about 3,071 (184)
PEKK powders for selective laser sintering
, 2022 Nowadays, the need to develop ever more innovative and efficient materials puts constant pressure on a large number of industrial sectors. Among them, aeronautics, aerospace, transport and energy production sectors seek to lighten the structure of their equipment in order to reduce energy consumption and minimize their environmental footprint.
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Journal of Advanced Joining ProcessesWelding high-performance thermoplastics has gained popularity across various industries such as automotive, aerospace, and medical. Laser transmission welding (LTW) has emerged as an effective method for joining thermoplastic parts due to its precise ...
Marcela Matus-Aguirre +5 more
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, 2017 Tämän tutkielman tarkoituksena on tutustua täydellisiin lukuihin ja niiden ominaisuuksiin. Täydellisiin lukuihin liittyy matematiikan avoimia ongelmia, kuten parittomien täydellisten lukujen olemassaolo tai parillisten täydellisten lukujen lukumäärä ...
Niemistö, Katja
core
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
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, 2017 Pour les polymères thermoplastiques renforcés de fibres de carbone, le taux de cristallinité et la morphologie induite lors de la cristallisation ont un impact certain sur leurs propriétés physiques et mécaniques. Ces deux paramètres sont non seulement dépendants des conditions de mise oeuvre mais aussi des constituants du composite.
Chelaghma, Saber +6 more
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Non-Syndromic Tooth Agenesis: Interdisciplinary Case
International Dental JournalIntroduction: This case employed orthodontic space redistribution for missing teeth, integrating digital technologies (intraoral scanning, CAD-CAM) for diagnostic and definitive prosthesis fabrication.
Ou-Yang Shaobo, Lian Lan, Hong Jinming
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Composites Part C: Open AccessThis work presents the first systematic investigation of the temperature-dependent mechanical behavior in hybrid NiTi/CF-PolyEtherKetoneKetone (PEKK) composite laminates (HNCLs), which has remained unexplored to date.
Muzafar Hussain +3 more
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Optimal Composite Material for Low Cost Fabrication of Large Composite Aerospace Structures using NASA Resins or POSS Nanoparticle Modifications [PDF]
Thermoplastic laminates in situ consolidated via tape or tow placement require full mechanical properties. Realizing full properties requires resin crystallinity to be controlled - partial crystallinity leads to unacceptably low laminate compression ...
Gruber, Mark B. +2 more
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Nonlinear Dynamic Behavior of Impact Damage in a Composite Skin-Stiffener Structure [PDF]
, 2013 One of the key issues in composite structures for aircraft applications is the early identification of damage. Often, service induced damage does not involve visible plastic deformation, but internal matrix related damage, like delaminations.
Akkerman, R. +5 more
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Cost studies for commercial fuselage crown designs [PDF]
Studies were conducted to evaluate the cost and weight potential of advanced composite design concepts in the crown region of a commercial transport. Two designs from each of three design families were developed using an integrated design-build team.
Metschan, S. L. +5 more
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