Results 21 to 30 of about 368,489 (169)
ABSTRACT With the depletion of energy resources and the vigorous development of renewable energy technologies, the demand for efficient energy storage technologies has become increasingly urgent. Dielectric ceramics feature ultrafast charge–discharge speed, but low energy density and inferior efficiency hinder device miniaturization.
Junxuan Liu +14 more
wiley +1 more source
整流电路的设计是无源射频识别(RFID)标签的关键技术之一.基于两种传统的整流电路,分析影响其输出电压和能量转换效率(PCE)的几个因素,在此基础上提出了一种改进的整流电路.该电路采用栅极交叉连接的结构来消除天线到芯片的阈值电压压降,并通过增加两个MOS管作为开关来抑制芯片到天线的电荷回流.电路的设计仿真结果显示 ...
郭东辉, 姜帆
core
ABSTRACT Multifunctional thermal protective ceramic thermal/environmental barrier coatings (T/EBCs) are of great significance for applications of various high‐temperature components, and we propose an effective strategy for designing high‐entropy ceramics (HECs) as T/EBCs for SiC ceramic matrix composites (CMCs), where low thermal expansion ...
Qinshuo Wang +7 more
wiley +1 more source
Biomass‐Derived Laser‐Induced Graphene: From Precursor Chemistry to Device Integration
ABSTRACT Laser direct writing provides a mask‐free route for converting suitable carbon‐containing precursors into patterned, porous, and conductive laser‐induced graphene (LIG) networks. Although LIG was initially demonstrated mainly using aromatic synthetic polymers, such as polyimide, biomass precursors introduce renewable feedstocks with highly ...
Wanjun Yin +10 more
wiley +1 more source
ABSTRACT Photocatalytic acetylene (C2H2) semihydrogenation is a green route for ethylene (C2H4) production, yet the activity–selectivity trade‐off caused by imbalanced adsorption/activation of reactants and products remains a core challenge. Herein, we realize precise regulation of Pd oxidation states (Pd0, Pdδ+, and Pd2+) on anatase TiO2 nanocubes via
Zhidan Wang +7 more
wiley +1 more source
ABSTRACT Epidermal bioelectronics is a transformative technology for continuous health monitoring and human‐computer interaction. However, the mechanical and physiological mismatch at the skin–device interface limits its long‐term application. Electrospun nanofiber membranes (ENMs), with their unique three‐dimensional hierarchical porous network and ...
Jiahua Ni +7 more
wiley +1 more source
随着我国输电线路向高海拔地区延伸,高海拔输电线路的防雷问题日益突出,由于缺乏选型标准,线路避雷器的高海拔应用存在困难。笔者对电气一次设备外绝缘高海拔修正的基本原则进行了说明,对交流线路避雷器串联间隙电弧距离、本体电弧距离的耐受电压确定原则进行了解释,对不同海拔下的电弧距离修正结果进行了计算。提出了不同电极结构电气距离与电压耐受值的计算公式,结合低海拔避雷器电弧距离典型设计值对计算公式有效性进行了验证,使用计算公式对高海拔情况下线路避雷器的电弧距离进行了近似计算并给出了参考设计值 ...
刘守豹 +5 more
doaj
The circuits design based on threshold-controllable switch(基于可控阈开关的电路设计)
本文讨论了可控阈开关的二种应用。建立了实现阈值控制电路的传输开关运算。设计了二值电流型CMOS施密特电路。在利用电流求和信号并引入阈值控制技术后,设计了具有简单结构的ECL全加器。PSPICE模拟证明了所设计的电路具有正确的逻辑功能和理想的特性。
WANGShanhua(王珊华) +1 more
doaj +1 more source
The Evolution of Metal Halide Perovskite Transistors
ABSTRACT Metal halide perovskites (MHPs) offer a revolutionary pathway for next‐generation field‐effect transistors (FETs) because of their exceptional carrier mobilities and cost‐effective processability. However, their transition to practical electronics is significantly challenged by intrinsic instability and imbalanced charge transport. This review
Jiangnan Xia +8 more
wiley +1 more source
Design of high recognition PUF circuit based on monostable timing deviation(基于单稳态定时偏差的高识别性PUF电路设计)
通过对单稳态电路定时偏差和物理不可克隆函数(physical unclonable functions,PUF)电路的研究,提出了一种基于单稳态定时偏差的高识别性PUF电路设计方案.首先,分析单稳态定时电路的自我标识物理特性,提出长定时单稳态电路设计方法;然后,利用该单稳态电路产生的定时偏差信号以及激励信号控制数据选择器选择2个定时偏差信号,结合仲裁器判决唯一的、不可克隆的输出响应.采用TSMC 65nm CMOS工艺,在不同环境下对设计的PUF电路进行Monte Carlo仿真,分析其识别性 ...
QIANHaoyu(钱浩宇) +3 more
doaj +1 more source

