Results 21 to 30 of about 4,017 (128)

Large Cation‐Induced Lattice Distortion in Carbon‐Based High‐Entropy Oxides: Spin‐State Engineering and Broadband Microwave Absorption

open access: yesRare Metals, Volume 45, Issue 7, July 2026.
ABSTRACT High‐entropy oxides (HEOs) are promising for microwave absorption but suffer from a trade‐off between impedance matching and attenuation, often requiring high filling ratios (> 50 wt%). Herein, we propose a “lattice‐spin” dual‐regulation strategy by introducing giant‐radius Bi into a single‐phase HEO solid solution.
Junwei Zhang   +11 more
wiley   +1 more source

Power estimation techniques for Reed-Muller logic circuits(Reed-Muller逻辑电路的功耗估算技术)

open access: yesZhejiang Daxue xuebao. Lixue ban, 2008
提出了一种Reed-Muller(RM)逻辑电路的功耗估算方法.将多输入AND/XOR门分解成由2输入AND/XOR门构成的树,采用信号的跳变密度和信号概率来计算内部节点信号的开关活动率,从而实现电路的功耗估算.实验结果表明:该方法得到的估算结果与电路实际功耗二者之间具有良好的线性关系.
YEXi-en(叶锡恩)   +2 more
doaj   +1 more source

Hardware mechanism for redundancy restraint and the analysis of their working procedure(冗余抑制的硬件实现及作用过程分析)

open access: yesZhejiang Daxue xuebao. Lixue ban, 2001
基于低功耗设计的要求,本文对数字系统中冗余现象的普遍性进行分析,研究了实施冗余抑制功能的各种基本结构,并进行了抑制作用的时间分析,这些均为在电路的低功耗设计中有效地应用冗余抑制技术提供了研究基础.
WUXun-wei(吴训威)   +1 more
doaj   +1 more source

Designing “Sphere/Network” Hierarchical Dielectric Loss Structure for Efficient Electromagnetic Wave Absorption

open access: yesRare Metals, Volume 45, Issue 6, June 2026.
ABSTRACT Electromagnetic wave absorption materials require high dielectric loss and excellent impedance matching performance. However, current conventional biomass‐derived electromagnetic wave absorption materials are still limited by low electrical conductivity and a single structure.
Yue Zhang   +9 more
wiley   +1 more source

Anisotropic MoS2/SiC Aerogels: A Multifunctional Platform for Broadband Electromagnetic Stealth and Thermal Management

open access: yesRare Metals, Volume 45, Issue 6, June 2026.
ABSTRACT To address the demand for high‐temperature stability, broadband strong absorption, and multifunctional integration of electromagnetic wave absorbing materials in complex service environments, lightweight molybdenum disulfide (MoS2) decorated silicon carbide (SiC) nanofiber composite aerogels with a directional layered interconnected structure ...
Zhi Song   +4 more
wiley   +1 more source

运用频域辅助分析的AES算法相关功耗攻击

open access: yes四川大学学报. 自然科学版, 2014
在多数功耗分析攻击中,密码设备总功耗并不完全与敏感信息相关.针对这一问题,提出一种借助频域辅助分析提高AES算法的相关功耗攻击效率的方法.该方法首先执行相关功耗频域分析(Correlation Power Frequency Analysis,CPFA),其结果被用来计算有效功耗信息频带,继而确定合适的滤波器截止频率,以最大限度地去除与敏感信息不相关的噪声.通过在STC90C58AD微控制器上,采集相同密钥随机明文的AES算法功耗曲线,对比使用原始 ...
黄永远, 陈运, 陈俊, 滕永平
doaj  

Cost of parasite exposure depends on host ontogeny 寄生接觸的代價依賴於宿主發育階段

open access: yesEcological Entomology, Volume 51, Issue 3, Page 592-603, June 2026.
The cost of parasite exposure varies across host developmental stages, demonstrating that ontogeny influences the expression of non‐consumptive effects (NCEs). Mite exposure resulted in consumptive effects in fly eggs and NCEs in early‐stage pupae; mite longevity was comparable when provisioned with pupae or water but increased when provisioned with ...
Lisa R. MacLeod   +2 more
wiley   +1 more source

CMOS电路的低功耗逻辑综合

open access: yes四川大学学报. 自然科学版, 2007
针对CMOS电路的功耗来源提出了一种低功耗综合流程.这种综合流程在不改变原有电路设计的前提下同时采用了门控时钟、操作数隔离和门级功率优化来降低功耗.对一个PTC(PWM/Timer/Counter)控制器的仿真表明,这种流程可以降低电路功耗57%,与仅使用门控时钟的流程相比可以进一步降低电路功耗21%.
刘丹单, 邬齐荣, 马瑶, 龚敏
doaj  

Constructing Asymmetric Cu–OV–Mn Sites on MOFs‐Derived Cu‐MnOx Microspheres With Abundant Oxygen Vacancies for Enhanced Photothermal VOC Degradation

open access: yesRare Metals, Volume 45, Issue 5, May 2026.
ABSTRACT With the growing severity of volatile organic compounds (VOCs) pollution, metal‐organic frameworks (MOFs)‐derived materials offer a promising solution through efficient photothermal catalysis. In this paper, M‐MnOx (M = Cu, Ni, Co, Fe) catalysts derived from manganese‐based MOFs were successfully prepared by the sacrificial template method and
Yizhong Liao   +10 more
wiley   +1 more source

Low power serial magnitude comparator based on the Clock-Gating technique(基于门控技术的低功耗串行比较器)

open access: yesZhejiang Daxue xuebao. Lixue ban, 2002
通过对低位先比串行数值比较器和高位先比串行数值比较器的设计及分析, 证明了应用门控时钟技术设计的时序电路具有明显的低功耗特性. PSPICE模拟结果证明了基于门控技术设计的电路能有效地降低电路的功耗, 并保持正确的逻辑功能.
LUYang-jian(卢仰坚)   +2 more
doaj   +1 more source

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