Results 71 to 80 of about 2,183 (305)
This review highlights recent advances in electrospun nanofiber‐based triboelectric nanogenerators, emphasizing how material design, fiber architecture, and interface engineering collectively enhance output performance and mechanical durability. Key developments in porous, aligned, core‐shell, and hierarchical nanofibers are discussed alongside ...
MD Fajla Rabbi +3 more
wiley +1 more source
This review traces the evolution of lithium‐ion battery separators from passive barriers to multifunctional components central to cell safety and performance. Polymer‐ceramic hybrids, nanofiber architectures, and bio‐derived membranes deliver ionic conductivities above 3 mS cm−1, thermal stability beyond 200 °C, and effective suppression of lithium ...
Karthik Vishweswariah +5 more
wiley +1 more source
Closed cycle electric discharge laser design investigation [PDF]
Closed cycle CO2 and CO electric discharge lasers were studied. An analytical investigation assessed scale-up parameters and design features for CO2, closed cycle, continuous wave, unstable resonator, electric discharge lasing systems operating in space ...
Baily, P. K., Smith, R. C.
core +1 more source
High power laser apparatus and system [PDF]
A high-power, continuous-wave laser was designed for use in power transmission and energy-collecting systems, and for producing incoherent light for pumping a laser material. The laser has a high repetitive pulsing rate per unit time, resulting in a high-
Brandhorst, H. W., Jr. +1 more
core +1 more source
Stacked nanoflake assembly (SNA) membranes can oscillate autonomously, offering opportunities for soft actuation and energy harvesting. This work uncovers the physical mechanism behind the sustained oscillation of SNA membranes in gradient humidity and identifies three governing dimensionless parameters, enabling rational design for optimizing SNA ...
Zijing Zhang +5 more
wiley +1 more source
Advanced electrochemical technology Semiannual report, 1 Jul. - 31 Dec. 1967 [PDF]
Gas diffusion advanced fuel cell and related electrochemical ...
Chen, P. C., Grohse, E. W.
core +1 more source
Interrupted pumpdown of a vacuum system [PDF]
The pressure rise due to a surface outgassing process following a real pump closure has been analyzed and found under a physically reasonable parameter selection to occur very quickly yet result in a very slight actual pressure change. Real leaks thus should be able to be distinguished from surface outgassing processes by this technique.
openaire +1 more source
Evolution of Materials and Device Stacks for HfO2‐Based Ferroelectric Memories
This review summarizes engineering strategies for HfO2 based ferroelectric memories with focus on FeCAP and FeFET structures. It describes how dopant design, stress effects, and interface engineering improve the bulk ferroelectric response. It further discusses how channel engineering supports reliable memory characteristics and scalable integration ...
Eunjin Kim, Jiyong Woo
wiley +1 more source
Electric Life of Vacuum Circuit Breaker Considering High-speed Trains Passing Neutral Sections
For the vacuum circuit breaker (VCB) breaking frequently in high-speed railway, contacts were repeatedly corroded, and tips, coarsenesses and reduction of vacuum degree of diffusing metal vapor were caused by arc during breaking. The experimental program
LI Tian-zhi +4 more
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