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Inter‐Crystal Spacing of Implantable Polymeric Surfaces as a Key Suppressor of Microbial Adhesion.
Small, EarlyView.Biofilm formation on implantable devices is addressed by controlling inter‐crystal spacing in shape memory polymers. Repeated shape recovery aligns and enlarges crystalline phases and reduces amorphous regions, enhancing bacterial repellency. Three biofilm‐forming bacteria show reduced adhesion, and a one‐year dog bile‐duct model maintains function ...
Kang Suk Lee +5 more
wiley +1 more source
Small, EarlyView.This study presents a computational framework treating crystalline HOFs as adaptive atomic‐scale interfaces. Catenated HOFs preserve lattice stability under load while enabling auxetic deformation and reversible nonlinearity. The results provide direct evidence that supramolecular interactions govern macroscopic resilience and structural adaptability ...
Byeonghwa Goh, Joonmyung Choi
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Unlocking Energy Potential: Exploiting Anionic Redox Activity in Na‐Based Layered Oxides
Small, EarlyView.Anionic redox in Na‐based layered oxide cathodes unlocks additional capacity beyond conventional transition‐metal redox limits, enabling high‐energy sodium‐ion batteries. This review elucidates coupled cationicanionic redox mechanisms across P2‐, O3‐, and related structural phases, while critically addressing key challenges such as voltage hysteresis ...
Neeraja Nair +6 more
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Small, EarlyView.A scalable fabrication method based on chemically tuned controlled dielectric breakdown (CT‐CDB) enables heterogeneous multilayer nanopores integrating SiNx with 2D materials such as hBN, MoS2, and graphene. The resulting nanopores exhibit distinct electrokinetic behaviors and low noise, allowing structure‐dependent single‐protein sensing.
Chaoming Gu +9 more
wiley +1 more source
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Research on development of vacuum interrupter
2012 2nd International Conference on Consumer Electronics, Communications and Networks (CECNet), 2012Vacuum interrupter is an important issue in the field of vacuum switch (VS) and one of the cores of VS. The history of vacuum interrupter and its present situation are described in this paper. At the same time an analysis on the four key elements, namely contact material, arc control systems, interrupter construction and interrupter manufacture, which ...
Liu Shunxin, Yan Lichao
exaly +2 more sources
The self actuating vacuum interrupter (SAVI): A new concept in vacuum interrupter technology
2016 27th International Symposium on Discharges and Electrical Insulation in Vacuum (ISDEIV), 2016This paper describes a new approach to the design of Vacuum Interrupters. Presently a Vacuum Interrupter (VI) is a component of electrical switchgear, which relies on an external mechanism to provide the movement of the contacts required for switching operation.
L. T. Falkingham, W. J. Molan
exaly +2 more sources
Development of Vacuum Interrupters with High Interrupting Capacity
IEEE Transactions on Power Delivery, 1987Vacuum interrupters, in which axial magnetic field type electrodes and CuCr contact materials are ccnbined, show excellent performance from all points of view. By this combination of electrode and contact material, the arcing phenomenon is scmewhat different from that of existing combinations. We have investigated the arcing and dielectric phenanena in
M. Okawa +5 more
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Reignition current interruption characteristics of the vacuum interrupter
IEEE Transactions on Power Delivery, 1988The high-frequency (70-600 kHz) current-interrupting capability of the vacuum interrupter has been investigated using an LC surge testing circuit. Three parameters were examined: di/dt, (di/dt)/gap, and Q*(di/dt)/gap, where Q is a quantity that represents the amount of residue between contacts at zero reignition current. It was found that Q*(di/dt)/gap
Y. Matsui, T. Yokoyama, E. Umeya
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Interrupting abilities of vacuum interrupters with horseshoe electrode
SPIE Proceedings, 1994In this paper, the high current vacuum arc behavior with horse shoe electrode has been described. These are dynamic vacuum arc distribution, the maximum current density related to the interrupting limit and factors which influences the interrupting limits. Then based on the above analyses, several vacuum interrupters within (phi) 70 mm outside diameter
W. Shang, H. Schellekens
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Interrupting capability of vacuum interrupter by various parameter
2012 IEEE International Power Modulator and High Voltage Conference (IPMHVC), 2012Vacuum interrupter (VI) has been commercially available in medium voltage switching equipment. Recently, the development of the VIs is focused to reduce the size. Thus, it is necessary to a smaller size contact. In this paper, we investigated the interruption behavior in the real VI with two different contact size of the transverse magnetic field (TMF)
Chi-Wuk Gu +4 more
openaire +1 more source