Results 21 to 30 of about 1,100,499 (157)

The Effects of Working Memory Updating on Chinese Reading Comprehension Among Bilingual Primary School Students

open access: yesNew Directions for Child and Adolescent Development, Volume 2026, Issue 1, 2026.
Background Working memory updating is crucial in bilingual children′s second language (L2) reading comprehension. A robust updating ability is a cognitive key for children to successfully master L2 reading comprehension. Objective This study is aimed at investigating the effect of updating ability on the L2 Chinese reading comprehension among Uyghur ...
Guangxin Li   +3 more
wiley   +1 more source

Hydraulic traits are coordinated but decoupled from carbon traits in herbaceous species

open access: yesFunctional Ecology, Volume 39, Issue 5, Page 1302-1317, May 2025.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Plant hydraulic traits primarily define the water regulation strategy, thus enabling a better understanding of vegetation structure, function and dynamics under varying hydro‐environments.
Ruike Huang   +9 more
wiley   +1 more source

纳米金属腐蚀 = Corrosion of nanoscale metals

open access: yes, 2018
纳米尺度金属的小尺寸效应、超高比表面积以及表面大量缺陷、悬空化学键等活性反应位,使其具有完 全不同于传统块体金属的优异化学反应活性。然而,高反应活性在使得纳米金属在获得特殊性质和功能的同 时,其抗氧化、腐蚀等稳定性问题也成为限制其实际应用的主要因素。金属纳米材料在实际应用中绝大部分 是在溶液环境下,或处于有液体接触的复杂多相体系中,腐蚀问题不可避免。纳米金属材料在溶液中的腐蚀 失效问题是该类材料实现真正大规模实际应用必须要面对和解决的关键问题。但由于其具有低维度和小尺 寸等特点 ...
黄一中 Huang, Yizhong   +3 more
core   +1 more source

Performance improvements in complementary metal oxide semiconductor devices and circuits based on fin field‐effect transistors using 3‐nm ferroelectric Hf0.5Zr0.5O2

open access: yesRare Metals, Volume 43, Issue 7, Page 3242-3249, July 2024.
Graphical abstract AbstractIn this work, a conventional HfO2 gate dielectric layer is replaced with a 3‐nm ferroelectric (Fe) HZO layer in the gate stacks of advanced fin field‐effect transistors (FinFETs). Fe‐induced characteristics, e.g., negative drain induced barrier lowering (N‐DIBL) and negative differential resistance (NDR), are clearly observed
Zhao‐Hao Zhang   +10 more
wiley   +1 more source

The tale of the sea turtle flipper tagging technique, a global environmental impact assessment 海龟鳍状肢标记技术的全球性环境影响评估

open access: yesWildlife Letters, Volume 2, Issue 1, Page 44-59, March 2024.
The sea turtle flipper tagging technique: is a tenet management technique generating continuous scientific data worldwide since over a century. presents a very low risk of expression of a fibropapillomatosis lesion at the tag insertion point correlated to a direct inoculation of ChHV5 via infected tagging equipment, and a risk of entanglement in ...
Claire Saladin, Daniela Freggi
wiley   +1 more source

在役管道和管状工件探伤技术及应用概况

open access: yes, 2004
管道和管状工件在运行过程中产生的缺陷主要是腐蚀坑和纵向裂纹。介绍用于管道和管状工件的各种探伤方法的原理、应用及其优点和缺点。特别介绍了用于在役管道和管状工件内部扫查的管道探伤设备介入式管道探伤器 Pig、带电缆的 ...
丁建东, 冯玮, 姚红星, 蔡桂喜
core   +1 more source

Design and application of a ventilator tube support device (一种呼吸机管路支撑装置的设计与应用)

open access: yes中西医结合护理
Given problems that the pipeline of the clinical ventilator is prone to twisting, being compressed, falling off, and causing traction injury to the patient's airway and affecting the ventilation effect during use, this paper introduce a ventilator ...
WANG Haifeng (王海丰)   +4 more
doaj   +1 more source

兼容性气管套管封管器的设计与应用

open access: yesHuli yanjiu, 2015
气管切开术是抢救危重病人的急救手术,可改善各种原因引起的呼吸困难[1],是将颈段气管前壁切开,通过切口插入气管套管,以利排痰,降低气道阻力,确保通畅,恢复气管以下呼吸道通气功能[2],气管切开术后常规放置金属气管套管或一次性气管套管,待其病情稳定,呼吸功能恢复,咳嗽有力,痰液减少,已解除对气管切开的依赖时可考虑拔管 ...
郭文
doaj  

集预热和换热于一体的多通道金属钯复合膜氢气分离装置

open access: yes, 2014
本实用新型公开了一种集预热和换热于一体的多通道金属钯复合膜氢气分离装置,该装置由多通道金属钯复合膜氢气分离器、电加热套、换热螺旋套管、保温材料和外壳组成。多通道金属钯复合膜氢气分离器是由钯膜组件、分离器壳体、预热螺旋盘管、缓冲罐等组成。该氢气分离装置具有结构紧凑、热利用效率高、装置投资和分离成本低等优点 ...
徐恒泳,  唐春华
core  

工频电流对金属管道烧蚀试验研究

open access: yesGaoya dianqi, 2010
通过工频电弧试验,模拟了与输电线路接近的埋地金属管道在雷击下可能遭受的烧蚀。通过多组实验的对比,分析了电弧对PE防护层管道烧蚀过程中影响最大的参数,并进行了其与电弧烧蚀深度、烧蚀体积之间关系的拟合分析。最后通过对比空气中及砂土中的试验,证明了空气与砂土中电弧烧蚀规律的一致性。试验结果为埋地管道的防雷设计提供了依据。
胡京, 蓝磊, 文习山
doaj  

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