Results 91 to 100 of about 31,411 (255)
Gaoya dianqi, 2021 相变冷却技术逐渐成为高压功率电力电子器件散热瓶颈的解决方案。但在高压应用场景中,由气泡引发的绝缘问题需要重点关注。针对相变冷却的沸腾特征,掌握制冷剂液态、气态以及两相态的绝缘特性是开展相变冷却技术绝缘分析的基础,而现有研究尚没有系统性的制冷剂多相态绝缘特性测试方法。因此,文中研制了用于制冷剂多种相态工况的绝缘实验装置,首次实现了低沸点液体蒸汽的介电强度测试,进而提出了制冷剂蒸汽及两相态环境的击穿实验方案。利用FC-72制冷剂,对其液态、气态及两相态展开了系统性的击穿特性研究,获得了FC ...
莫申扬 +5 more
doaj
The effect of pentosan polysulfate on diabetic nephropathy renal tubular epithelial cells injury through regulating p38 MAPK signaling pathway [PDF]
, 2016 目的：观察戊糖多硫酸钠是否通过调控P38MAPK干预糖尿病肾病肾小管上皮细胞的损伤。方法：利用不同浓度（10mmol/L～50mmol/L）葡萄糖刺激肾小管上皮细胞（HK-2）48h，应用CCK-8比色法检测肾小管上皮细胞增殖的改变。利用不同时间段（0h～48h）葡萄糖刺激细胞，用Westernblot法检测P38MAPK蛋白的表达水平。分为正常对照组（control组）、高糖组（HG组，葡萄糖30mmol/L)、戊糖多硫酸钠（PPS）组（PPS200µg/mL)、高糖＋戊糖多硫酸钠组（HG＋
张天英
core
International Journal of Applied Linguistics, EarlyView.ABSTRACT This study investigates how the learner‐related factors of language dominance, encompassing language history, proficiency, use, and attitude, modulate congruency effects in multi‐word unit (MWU) processing among early bilinguals. Seventy Cantonese–Putonghua bilinguals completed lexical decision tasks measuring reaction time and accuracy for ...
Mingjia Cai, Yuan Liang
wiley +1 more source
Guangtongxin yanjiu, 2010 多业务区分是差异化性能保证和网络安全监控的基础。基于业务峰值速率的特征能实时实现多业务类属区分,文章根据业务区分速率界值与链路负载率之间的相关性,分别提出了静态业务区分和动态业务区分方法,能够在实时链路状态下将多业务动态区分为实时和非实时业务。基于C++编程仿真验证了业务区分方法的可行性及简易性。
杨永杰, 隋会静, 包志华
doaj
DNA分子结构的多态性研究——Ⅲ阳离子型表面活性剂诱导λ-DNA由线圈型向球型的转变 [PDF]
, 1999 冯喜增, 林璋, 王琛, 白春礼
openalex +1 more source
Learning Styles, Engagement and Anxiety in AI‐Mediated Writing: A Multimodal Feedback Study
International Journal of Applied Linguistics, EarlyView.ABSTRACT Artificial intelligence (AI) tools now permeate English academic writing. However, evidence on how feedback modalities align with student differences and with psychological mechanisms remains limited. Prior work often reduced learning styles to simple matches with delivery modes and treated learning engagement and writing anxiety as peripheral.
Yi Ren +3 more
wiley +1 more source
Zhongguo shiyan zhenduanxue, 2007 目的采用PCR-CTPP技术,检测中国浙南地区白细胞介素-2（IL-2）基因-330位的多态性,并分析其可能的临床应用。方法针对IL-2基因-330（T/G）多态性设计两条序列特异性引物,结合两侧引物,在同一反应管中进行PCR。对PCR条件进行优化,并与测序结果进行对比。在此优化条件对101名体检个体的DNA进行IL-2基因多态性分析。结果通过条件优化,PCR-CTPP（polymerase chain reaction with confronting two-pair primers）可以区分IL ...
杨丽红 +4 more
doaj
[Recent research on the association between depressive disorder and gene polymorphisms in adolescents]. [PDF]
Zhongguo Dang Dai Er Ke Za Zhi, 2023 Yao KK, Dong QL, Ye LX.
europepmc +1 more source
Synthesizing Empirical Research on Learner Metacognition in Second Language Writing
International Journal of Applied Linguistics, EarlyView.ABSTRACT Despite considerable research interest in learner metacognition in second language (L2) writing, there is not yet a review that synthesizes the existing empirical findings and discusses their implications. To fill the void, this systematic review synthesized 39 empirical studies on learner metacognition in L2 writing and examined their salient
Chen Li, Icy Lee, Zhicheng Mao
wiley +1 more source