Results 21 to 30 of about 4,650 (163)
Design and Implement Multi-Parameter Marine Environment Network Monitoring System [PDF]
, 2016 中国海岸线长约3.2万千米，其中大陆海岸线1.8万千米，岛屿海岸线1.4万千米，海洋蕴藏丰富的能量和矿产资源，人们开发和探索的领域逐渐从内地向沿海及近海地带扩展。海洋环境监测系统是集无线通信技术、传感器技术、微电子技术、物联网等先进技术为一体的综合体系，是认识海洋、开发海洋、保护海洋的基础。至今为止，建立在我国海岸线上的监测节点和沿海信息站存在数量少，分布不合理，观测方法不够完善，技术手段相对落后等问题；由于电池能量耗尽导致监测节点失效会影响整个无线传感网络生命周期以及系统功能 ...
古叶
core
Rare Metals, Volume 45, Issue 5, May 2026.ABSTRACT Integrating light emission and electromagnetic wave (EMW) absorption into a single material opens up possibilities for multienvironmental applications. Herein, we propose a novel “molecular engineering‐pyrolysis conversion” strategy to construct a bifunctional system with tunable photoluminescence and efficient EMW absorption performance.
Renjie Wang +7 more
wiley +1 more source
Developmental Medicine &Child Neurology, Volume 61, Issue 3, Page E1-E35, March 2019., 2019 目的 本国际临床指南由欧洲残疾儿童学会（the European Academy of Childhood Disability，EACD）牵头制定，旨在解决发育性协调障碍（developmental coordination disorder，DCD）的定义、诊断、评估、干预以及与社会心理方面的临床应用关键问题。 方法 本指南针对五个领域的关键问题，通过文献综述和专家团队的正式讨论达成共识。为保证指南的循证基础，以“机制”、“评估”和“干预”为检索词, 对2012年更新以来提出的最新建议以及新增的“社会心理问题”和“青少年/成人”为检索词进行检索。根据牛津大学循证医学中心证据等级 (证据水平 [level of evidence, LOE]1–4) 将结果进行分类，最终转化为指南建议。并由国际 ...
Jing Hua +6 more
wiley +1 more source
Based on baseband chip developed navigation interface card [PDF]
, 2016 北斗卫星导航系统是我国自主的卫星导航系统，可为分布在我国及周边地区的用户提供定位、短报文通信及授时服务。本文通过对国外GPS导航系统的分析，结合当前国内北斗用户发展现状及军事需求分析，提出相关战术技术指标，完成方案研制。 本文所定义的导航板卡是将天线的信号进行分路后分别进入射频部分进行处理，然后将下变频后的RNSSB3/B1、GPS的L1频点和Glonass的F1频点的中频导航信号送入基带单元进行处理，以完成对卫星导航信号的捕获、跟踪、PVT解算和授时等，该方案是基于北斗区域信号和卫星导航产品规模化 ...
邵留伟
core
Rare Metals, Volume 45, Issue 4, April 2026.ABSTRACT High‐capacity SiOx/graphite (SiO/G) anodes offer great potential for advancing lithium‐ion battery technology; however, their practical application is limited by low initial coulombic efficiency (ICE) and rapid capacity decay. These challenges primarily arise from unstable phase transitions and the formation of the solid electrolyte interphase
Wan‐Xing Zhang +14 more
wiley +1 more source
Power-aware mapping based-on genetic algorithm for Network-on-Chip(基于遗传算法的片上网络低功耗映射)
Zhejiang Daxue xuebao. Lixue ban, 2010 随着片上网络(Network-on-Chip)集成度的提高,功耗逐渐成为设计的焦点.本文提出了一种在延时约束条件下,基于遗传算法的片上网络通信链路的低功耗映射算法.该算法使用数组方式编码染色体,并采用非常规码的交叉和变异运算因子.它充分利用遗传算法的群体优势,能快速有效地对通信功耗作优化.实验表明,该算法能平均减少50%左右的通信功耗.
DONGWen-xiao(董文箫) +3 more
doaj +1 more source
Resistive switching property of HfO2 film prepared by atomic layer deposition and its 1D1R device [PDF]
, 2016 随着信息科学与微电子技术的发展，闪存已经成为今天市场上主流的非易失性存储器。但是随着浮栅存储器件尺寸的不断缩小，浮栅耦合、电荷泄漏、单元之间的串扰等问题日益严峻，开发更小尺寸、更低功耗和更高集成度的新型存储单元已成必然趋势。在新型非易失性存储器的研究中，阻变存储器由于结构简单、读写速度快、存储密度高、操作电压低、与CMOS工艺兼容性好等优势有望成为新一代非易失性存储器。本文基于原子层沉积生长的HfO2薄膜，研究了在不同温度下原子层沉积生长HfO2薄膜的阻变特性，确定了最佳工艺温度；在此基础上 ...
陆超
core
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 of a six bit full differential successive approximation analog to digital converter with 40M [PDF]
, 2015 当今社会信息产业发展迅猛，性能优良、低成本的片上系统在集成电路设计领域中越来越受到人们的重视，且芯片上能够集成的功能越来越多，这其中就包括各种各样的模数转换器。在通信过程中，电子产品往往依赖强大的大规模集成电路技术在数字域对信号进行高效的分析和处理，而最初输入的信号却是模拟信号，模数转换器能将模拟信号有效转换成与之对应的数字信号，因而起着非常关键的作用，它的性能往往决定着产品的整体性能。 在北斗多模导航片上系统SOC的ADC设计中，我们需要在保证较大的jammer情况下能无失真采样 ...
邹佳
core
Rare Metals, Volume 45, Issue 2, February 2026.ABSTRACT Nb‐Si‐based superalloys are considered as the most potential candidate materials for nickel‐based superalloys due to the lower density and higher using temperature. Here, a type of stable Nbss/γNb5Si3 bi‐phases structure with a coherent interface has been successfully designed. Additionally, the Nbss and γNb5Si3 phases showcase the orientation
Xiao‐Wei Wang +6 more
wiley +1 more source