Results 41 to 50 of about 4,017 (128)
Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT Against the backdrop of global clean energy transition and surging demand for lithium resources, lithium extraction from salt lakes presents unprecedented development opportunities. Nanofiltration (NF) membrane technology, recognized for its efficiency, energy savings, and environmental benefits, demonstrates significant application potential ...
Wen‐Feng Li +5 more
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Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT Emerging as attractive alternatives for sustainable, low‐cost, and high‐performance electromagnetic interference (EMI) shielding, biomass‐derived carbon is nonetheless constrained by a limited repertoire of shielding mechanisms. Herein, a straightforward method was employed to synthesize self‐supporting Co nanoparticles embedded in porous N ...
Yingjie Xu +6 more
wiley +1 more source
Design principle and application of double-edge-triggered shift register(双边沿移位寄存器的设计原理及其应用)
Zhejiang Daxue xuebao. Lixue ban, 2004 从消除时钟信号冗余跳变而致的无效功耗的要求出发,提出双边沿移位寄存器的设计思想.该移位寄存器的功能已用PSPICE程序模拟验证.使用该移位寄存器设计双边沿移位计数器的实例被演示.对模拟所得数据的计算结果表明,与实现相同功能的单边沿移位寄存器相比,由于工作频率减半,双边沿移位寄存器的功耗有明显降低.
ZHUTing(朱挺), WUXun-wei(吴训威)
doaj +1 more source
MXene‐Based Materials: Compositional Engineering for High‐Performance Microwave Absorption
Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT The rapid advancement of aerospace and electronic information technologies has imposed increasingly stringent requirements on microwave absorbing materials (MAMs), such as high absorption efficiency, lightweight, and environmental stability, making the development of advanced MAMs urgent for both civilian and national defense applications ...
Pan‐Pan Zhou +8 more
wiley +1 more source
Gaoya dianqi, 2021 准确计算换流阀及其中各类元部件运行损耗,是进行换流阀及其阀冷系统设计的基础。文中在分析换流阀中主要损耗源基础上,建立了晶闸管、电抗器的高精度等效仿真模型,提出了换流阀损耗的仿真计算方法。以此为基础,计算了额定工况下锡盟站换流阀中各主要元部件损耗功率,并将总损耗计算结果与理论计算值及现场测试数据进行了对比分析。结果表明:仿真方法具有较高精度,可被用于换流阀总损耗计算,以及阀内各发热器件的功率计算。
娄彦涛, 袁妮, 刘琦
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Zhejiang Daxue xuebao. Lixue banBased on conditional precharge technology, a design method of high speed and low power real phase clock trigger is presented. This method controls the redundant precharge activity of internal nodes by adding field effectors and control conditions to the ...
姚茂群(YAO Maoqun) +1 more
doaj +1 more source
Design of low-power LNA for intelligent water meters(适于智能水表的低功耗低噪声放大器设计)
Zhejiang Daxue xuebao. Lixue ban, 2013 采用交叉源耦合差分结构以及有源器件并联技术，提出了 一种适合智能水表芯片前端具有对称结构的低功耗低噪声放大器.基于标准0.35 µm CMOS工艺进行实现，PSPICE仿真测试结果表明，在2.5 V的典型电源电压和1 kHz的输入信号频率下，所提出的放大器等效输入噪声为9.1 nV • Hz-1/2，系统功耗为104 µW.具有低噪声和低功耗的特性，已达到智能水表芯片系统的工作需求.
PANLiang-liang(潘亮亮) +1 more
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Dianci bileiqi, 1992 分析了8片金属氧化物阀片在氮气中加速老化试验的电气特性。在115℃温度下,分别把有釉和无釉阀片先置放在空气中,然后再置放在氮气中,施加交流电压,其电气特性基于功率损耗随时间的变化。全部有釉阀片在氮气中的p—t变化不显著。而所有无釉阀片的p-t变化有较大差别,其中一部兮阀片的功耗增加较小,另一部分阀片功耗增加较大。并发现,当再次通入空气时功耗增加是可逆的。
郭胜茹
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四川大学学报. 自然科学版, 2015 以型号为HSMS-282c的肖特基二极管为例,利用多物理场协同算法对其微波响应特性进行了计算.通过比较器件在有或无封装时对特定频率的响应情况,发现封装可使器件的耗散功率增加87%.本文还对比了肖特基二极管在不同频率微波激励下的平均耗散功率,发现器件的耗散功率在3.5GHz附近存在峰值.当二极管的工作频率高于3.2GHz时,耗散功率会随环境温度的增加而增加.研究结果对于半导体器件的微波效应研究具有重要的参考价值.
王昊, 陈星, 徐可, 黄卡玛
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Zhejiang Daxue xuebao. Lixue banDifferential Power Attack (DPA) brings a significant security challenge for hardware, as it involves the examination of power consumption data from circuits to extract sensitive information.
姚茂群(YAO Maoqun) +3 more
doaj +1 more source