Results 41 to 50 of about 368,489 (169)

基于CCD的紫外电晕检测系统硬件电路设计

open access: yes, 2007
紫外探测技术在军事和民用领域发挥着越来越重要的作用。其中电力部门主要用来检测电晕放电,及时准确地检测电晕放电的位置和强弱对保证电力系统可靠运行和减少人身及设备的损坏有重要的意义。常规的电晕照相机在白天不能有效地探测到电晕活动。本文对基于紫外CCD传感器的硬件电路进行设计,将其应用于紫外电晕检测系统中可使该系统不受太阳辐射的影响,24小时全天候工作,可对电晕放电进行准确地探测和定位,无图像偏差。结合紫外CCD-CCD180-512-SFT的工作原理,详细介绍了利用现场可编程逻辑阵列(FPGA ...
姚鸣晖
core  

Dual‐Site Electronic Modulation in Mn/Fe‐Doped Ni0.85Se for High‐Efficiency Urea Oxidation at Industrial Current Density

open access: yesRare Metals, Volume 45, Issue 8, August 2026.
ABSTRACT Rationally designing an electrocatalyst to achieve stable and efficient urea oxidation reaction (UOR) is crucial but still challenging, especially for ampere‐level application. Herein, Mn and Fe dual‐doped Ni0.85Se (Mn/Fe–Ni0.85Se) catalyst is synthesized via a facile and scalable electrodeposition and followed by selenization.
Guanglin Zhu   +6 more
wiley   +1 more source

面阵CCD成像系统外围电路设计

open access: yes, 2005
近30年来,CCD(电荷耦合器件,Charge Coupled Device)器件及其应用技术的研究取得了惊人的进展,特别是在图像传感和非接触测量领域的发展更为迅速。目前,CCD 广泛应用于安全保卫系统,智能交通系统以及图像信息处理等领域,已经成为人类生活不可缺少的一项工具,与传统的摄像器件相比,CCD不仅具有体积小,重量轻,灵敏度高,可靠性好等优点,而且还具有很高的空间分辨率,性能优越的空间面阵CCD在卫星监控,空间遥感成像和对地观测等领域得到了越来越多的应用。在CCD成像系统电子学设计中 ...
陈学飞
core  

Multicationic Modulation Combining With Epitaxial Entropy‐Tailored Coating Unlocking 4.65 V Operation of Chemomechanically Stable LiCoO2 Cathode

open access: yesRare Metals, Volume 45, Issue 8, August 2026.
ABSTRACT To meet the escalating demand for high‐performance LiCoO2 (LCO) cathodes, elevating the charging cut‐off voltage becomes highly imperative to achieve markedly enhanced specific capacities. However, high‐voltage operation is always accompanied by structural instability, notably deleterious bulk phase transitions and severe interfacial ...
Jiawei Mu   +7 more
wiley   +1 more source

基于EPROM的步进电机可变细分电路设计

open access: yes, 1996
本文提出一种基于EPrOM的步进电机可变细分电路的设计原理
郭光真
core  

从传统书籍设计者角度看电子书设计之缺失 [PDF]

open access: yes, 2014
目前电子书设计还处于起步阶段,普遍存在版面设计不够专业化、脱离书籍的阅读本质等方面的问题。因此,需要传统书籍的设计者将成熟的传统书籍设计理念导入新型载体,创造性地拓展适合数字阅读的设计思路 ...
李夏凌
core  

Cell‐Integrated In Situ Prelithiation Enables Stable and Fast‐Charging Self‐Supporting Al Foil Anodes

open access: yesRare Metals, Volume 45, Issue 8, August 2026.
ABSTRACT Self‐supporting aluminum (Al) foil anodes offer the advantages of high energy density, simplified structural configuration, and low cost. However, their practical application is severely constrained by challenges such as low initial Coulombic efficiency, pronounced interfacial side reactions, and sluggish lithiation kinetics.
Sheng Yang   +8 more
wiley   +1 more source

The mixed MCML/TG logic and design of ternary T gate and D-latch circuits(MCML/TG混合结构与三值T门和三值D-latch电路设计)

open access: yesZhejiang Daxue xuebao. Lixue ban, 2012
在深入分析MCML和TG的电路特点后,提出将2种结构结合起来进行数字电路设计的思路.该混合结构主要由MCML和TG共同构成,MCML结构产生控制信号,TG进行信号的传输.并以三值T门和三值D锁存器电路为例,验证了这种设计思路的可行性.通过Hspice软件,采用TSMC 0.18 µm CMOS工艺,供电电压1.8 V,对所设计的电路进行仿真,分析结果表明:电路逻辑功能正确;输入输出高低电平一致,具有较好的电压兼容性;功耗保持MCML结构的优势,基本与频率无关;与传统的CMOS电路相比 ...
ZHANGZhuan(章专)   +1 more
doaj   +1 more source

轨道式变电站巡检机器人

open access: yes, 2013
1.本外观设计产品的名称:轨道式变电站巡检机器人。2.本外观设计产品的用途:在轨道上行走,用于对变电站进行检测。3.本外观设计的设计要点:设计要点在于形状。4.最能表明设计要点的图片或者照片:左视图。5.左视图与右视图对称 ...
王挺   +13 more
core  

用流水线技术实现STM-16帧定位电路设计

open access: yesGuangtongxin yanjiu, 2008
在高阶宽带电路交换专用集成电路(ASIC)芯片设计中,输入数据的帧定位和数据重排操作需要占用大量的逻辑电路。文章提出了一种流水线结构的帧定位电路设计方式,给出了STM-16码流的帧定位和数据重排的两种不同电路设计实现方案。试验结果表明,采用流水线结构设计实现的STM-16帧定位电路,可明显减小电路规模,降低芯片功耗,提高芯片的可靠性和整体性能。
孟李林
doaj  

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