Results 71 to 80 of about 3,305 (283)
Control of Yarn Tension and Yarn Speed in Circular Knitting Machine.
Sen'i Kikai Gakkaishi (Journal of the Textile Machinery Society of Japan), 1994 目的 丸編機は他の繊維機械と同様に歴史が長く完成度の高い機械である.しかし, 編機の給糸張力と糸速を積極的に制御するという試みはあまりなされていない.本報では給糸張力と糸速を同時に制御するための基礎的な技術を明らかにする.成果 編機の給糸張力と糸速が干渉を起こしていることを定量的に明らかにし, 非干渉制御等の手法を用いることで制御可能とした.これによって, 試行錯誤で行っていた給糸張力と糸速の設定を自動に行えるように, さらには, 系の経時変化, 糸種の変化による系のパラメーターの変化等に自動で対応でき, 編地の品質を安定させる技術を提案することができた.
Endou, Yoshimiti +2 more
openaire +2 more sources
MachinesRoll-to-roll (R2R) manufacturing processes demand precise control of web or yarn velocity and tension, alongside robust mechanisms for handling system failures.
Ahmed Neaz +4 more
doaj +1 more source
Bioinspired Adaptive Sensors: A Review on Current Developments in Theory and Application
Advanced Materials, EarlyView.This review comprehensively summarizes the recent progress in the design and fabrication of sensory‐adaptation‐inspired devices and highlights their valuable applications in electronic skin, wearable electronics, and machine vision. The existing challenges and future directions are addressed in aspects such as device performance optimization ...
Guodong Gong +12 more
wiley +1 more source
Advanced Materials, EarlyView.Drawing inspiration from the layered hard‐soft architecture found in sea sponges, this work establishes a new framework for architected cementitious composites (ACC) through multi‐material additive manufacturing (MMAM) process. The integration of mortar and elastomer phases into layered architectures enables synergistic toughening mechanisms, including
Aimane Najmeddine +5 more
wiley +1 more source
Tension-induced twist of twist-spun carbon nanotube yarns and its effect on their torsional behavior
Scientific Reports, 2018 Twist-spun carbon nanotube (CNT) yarns exhibit a large and reversible rotational behavior under specific boundary conditions. In situ polarized Raman spectroscopy revealed that a tension-induced twist provides reversibility to this rotation.
Seung-Yeol Jeon +2 more
doaj +1 more source
Advanced Materials, EarlyView.The field of polymer thermoelectrics is entering a new era, featuring breakthroughs in addressing the conventional performance disparity between p‐type and n‐type polymers, pioneering doping frontiers, and sophisticated decoupling strategies. This review explores innovations in molecular design and superior stabilities, bridging the gap from ...
Suhao Wang
wiley +1 more source
AUTEX Research JournalThe paper presents the characteristics of nine designed and manufactured variants of spindle heads for balloon-less spinning, the shapes of which were developed on the basis of the solutions previously used by leading manufacturers of ring spinning ...
Płonka Stanisław, Drobina Robert
doaj +1 more source
Shock in the Yarn during Unwinding from Packages
Abstract and Applied Analysis, 2013 Tension in the yarn and its oscillations during the over-end unwinding of the yarn from stationary packages depend on the unwinding speed, the shape and the winding type of the package, the air drag coefficient, and also the coefficient of friction ...
Stanislav Praček +2 more
doaj +1 more source
Leaftronics: Bio‐Fractal Scaffolds From Leaf Venation for Low‐Waste Electronics
Advanced Materials, EarlyView.“Leaftronics” transforms naturally evolved leaf venation into quasi‐fractal scaffolds for sustainable electronics. Polymer‐infiltrated leaf skeletons can be used to fabricate ultra‐smooth, reflow‐ and thin‐film‐compatible decomposable substrates, while making the same lignocellulose networks conducting results in flexible transparent electrodes.
Rakesh Rajendran Nair +3 more
wiley +1 more source
Predicting torque of worsted singles yarn using an efficient radial basis function network-based method [PDF]
, 2007 The torque in single-spun yarns is an inherent property of the twisting and bending of staple fibres during the formation of yarn combined with the effect of applied tension on the yarn.
D. G. Phillips +3 more
core +1 more source