Results 31 to 40 of about 3,270 (117)
Implications of Tobacco Use on Pathogen‐Driven Diseases: A Public Health and Policy Perspective
World Medical &Health Policy, Volume 17, Issue 3, Page 468-474, September 2025.ABSTRACT The tobacco epidemic remains one of the most significant global public health challenges, responsible for over 8 million deaths annually, with a substantial portion occurring among non‐smokers exposed to second‐hand smoke. While cigarette smoking remains the most prevalent form of tobacco use worldwide, the rise of electronic nicotine delivery
Nadine Kabbani, James L. Olds
wiley +1 more source
, 2007 数控振荡器是全数字锁相环中的关键部件,目前应用较多的是除N计数式数控振荡器和增量/减量计数式数控振荡器,应用于锁相环时,前者做一次分频比调整就能使环路进入锁定状态,捕捉时间短,后者捕捉时间长,却有着前者没有的优势:结构简单、易于集成。提出了一种增/减量可变的计数式数控振荡器电路,此电路结构简单 ...
周书伟 +3 more
core
New Phytologist, Volume 247, Issue 5, Page 2086-2097, September 2025.Summary The importance of marine angiosperms, or seagrasses, as foundation species for marine coastal ecosystems is in marked contrast to their low species number of only 70 described taxa. Seagrass species tend to have very similar overall morphologies dictated by hydrodynamic forces of the ocean environment.
Xiaomei Zhang +14 more
wiley +1 more source
IET Collaborative Intelligent Manufacturing, Volume 6, Issue 4, December 2024.Domain‐adaptation‐based named entity recognition with information enrichment is proposed for developing an equipment fault knowledge graph. A question answering application of the equipment fault knowledge graph is proposed. Abstract Numerous files, such as records and logs, are generated in the process of equipment diagnosis and maintenance (D&M ...
Dengrui Xiong +3 more
wiley +1 more source
Design of low-frequency charge pump PLL [PDF]
, 2014 设计一款音频范围内的电荷泵锁相环,采用动态d触发器鉴频鉴相器及电流舵差分输入电荷泵。压控振荡器采用了对电容充放电的形式产生震荡波形,实现低频输出。采用HHnEC bCd035工艺并用CAdEnCE软件实现仿真,实现250 kHz频率锁定,锁定时间为80μS,锁定时相位差为75 nS且压控振荡器控制电压纹波为5 MV。A charge pump PLL working in audio frequency was designed,in which a TSPC-PFD and a current ...
庄锦清, 李开航, 罗雪芹
core
Experimentally testing animal responses to prescribed fire size and severity
Conservation Biology, Volume 38, Issue 3, June 2024.Abstract Deserts are often highly biodiverse and provide important habitats for many threatened species. Fire is a dominant disturbance in deserts, and prescribed burning is increasingly being used by conservation managers and Indigenous peoples to mitigate the damaging effects of climate change, invasive plants, and land‐use change. The size, severity,
Tim S. Doherty +4 more
wiley +1 more source
A novel D-Iatch design based on RTD(基于RTD的新型D锁存器设计)
Zhejiang Daxue xuebao. Lixue ban, 2018 共振隧穿二极管(RTD)作为一种较成熟的量子器件，具有独特的负内阻特性，由RTD组成的单双稳态转换逻辑单元(MOBILE)能够很好地利用该特性进行数字电路设计.基于MOBILE，设计了一种新的RTD输出控制电路.该电路的优点是将RTD的正向和反向电流电压特性相结合，无须使用面积较大的三端器件，电路设计较便捷.采用RTD输出控制电路和HEMT器件，设计了一种新的D锁存器.该D锁存器采用高电平偏置电压，不仅可使MOBILE获得需要的高电平触发方式，而且电路具有自锁特性.HSPICE仿真实验证明 ...
YAOMaoqun(姚茂群) +2 more
doaj +1 more source
CapSense Application in Automobile System [PDF]
, 2008 与早期的车型相比，如今汽车的开关和按钮要多得多。不仅数量众多，而且还必需能够很容易地安装到外形日益多样化的操纵面之中。另外，它们还需具备成本效益性，以取代密封型开关。一种逐渐走红的方法是转变为采用电容式触摸开关（CapSense）。 本论文采用0.6um的CMOS工艺实现了一种应用于汽车的电容式触摸开关芯片（CapSense）的设计。该芯片集成了电容传感器接口，弛张振荡器，脉冲宽度调制器和计数器等主要模块。电容传感器检测手指的存在，弛张振荡器用来检测电容传感器的电容值的变化 ...
郭建宁
core
Physiological Entomology, Volume 49, Issue 2, Page 67-90, June 2024.Olfactory receptor neurons (ORNs) in insect antennae project axons to glomeruli in the antennal lobe for odor processing by local interneurons. Uniglomerular projection neurons (PNs) relay processed odor information to the mushroom body and lateral horn.
Saleem Jaffar, Guy Smagghe, Yongyue Lu
wiley +1 more source
, 2008 IP复用已成为SOC(system-on-chip)芯片设计的主要手段之一。以一款0·18μm工艺下的温度控制芯片设计为例,具体介绍硬核复用设计的工艺移植问题,并给出了一种基于工艺设计工具包的设计流程及其关键技术解决方案。该设计流程在保证电路功能正确性的同时,又可以减少版图设计的设计周期 ...
洪瑞煌, 王云峰, 郭东辉
core