Objective Up to 45% of total organic carbon(TOC) was probably lost during acid treatment in carbonate-rich rocks(Froelich, 1980). Some scientists thought these acidsoluble organic matters were largely contributed from...Objective Up to 45% of total organic carbon(TOC) was probably lost during acid treatment in carbonate-rich rocks(Froelich, 1980). Some scientists thought these acidsoluble organic matters were largely contributed from carboxylic acid salts, which were commonly developed in alkaline carbonate formations and could potentially be excellent sources for natural gas stored in Early Paleozoic carbonate rocks in the Ordos Basin(Chong and McKay, 1984;Liu et al., 2017).展开更多
金属功函数波动作为器件制造过程中的主要工艺波动源之一,其波动变化对器件电学特性有极大的影响。本文提出一种简便、快速预测半导体场效应管金属功函数波动效应的方法,并将其与商业软件中计算功函数波动的统计阻抗场法进行对比分析。...金属功函数波动作为器件制造过程中的主要工艺波动源之一,其波动变化对器件电学特性有极大的影响。本文提出一种简便、快速预测半导体场效应管金属功函数波动效应的方法,并将其与商业软件中计算功函数波动的统计阻抗场法进行对比分析。参考IBM公司发布的14 nm SOI FinFET结构建立FinFET器件仿真模型并与实验数据对比验证后,引入金属功函数波动,分别用统计阻抗场法与本文提出的快速预测方法计算得到对应随机波动下模型的阈值电压V_(th)、关断电流I_(off)、工作电流I_(on)等电学特性参数的随机分布及这些参数结果的期望值、标准差、极差等统计参数,通过两者结果对比验证了快速预测方法的准确性。展开更多
基金founded by Natural Science Basic Research Program of Shaanxi(Grant No.2020JQ-590)the National Science Foundation of China(Grant No.41673066,41930426)China Postdoctoral Science Foundation(Grant No.2019M653713)。
文摘Objective Up to 45% of total organic carbon(TOC) was probably lost during acid treatment in carbonate-rich rocks(Froelich, 1980). Some scientists thought these acidsoluble organic matters were largely contributed from carboxylic acid salts, which were commonly developed in alkaline carbonate formations and could potentially be excellent sources for natural gas stored in Early Paleozoic carbonate rocks in the Ordos Basin(Chong and McKay, 1984;Liu et al., 2017).
文摘金属功函数波动作为器件制造过程中的主要工艺波动源之一,其波动变化对器件电学特性有极大的影响。本文提出一种简便、快速预测半导体场效应管金属功函数波动效应的方法,并将其与商业软件中计算功函数波动的统计阻抗场法进行对比分析。参考IBM公司发布的14 nm SOI FinFET结构建立FinFET器件仿真模型并与实验数据对比验证后,引入金属功函数波动,分别用统计阻抗场法与本文提出的快速预测方法计算得到对应随机波动下模型的阈值电压V_(th)、关断电流I_(off)、工作电流I_(on)等电学特性参数的随机分布及这些参数结果的期望值、标准差、极差等统计参数,通过两者结果对比验证了快速预测方法的准确性。
基金supported by the Discovery Grant from National Science&Engineering Council of Canada(RGPIN/355304-2010)the grants from Natural Science Foundation of China(30770971&81070362)
文摘骨形态发生蛋白(bone morphogenetic proteins,BMPs)是属于TGF-β超家族成员的一组重要细胞因子,参与细胞分化、增殖和胚胎发育等生理过程。不同的BMPs在脊椎动物中具有不同的功能。在信号通路上,BMPs的功能主要由Smad家族蛋白介导,后者包括8个成员,其中Smad1,Smad5和Smad8介导BMPs的信号转导,而Smad2和Smad3介导TGF-β的信号转导。虽然一些BMPs如BMP4和BMP9存在于肝脏,但肝脏中是否存在BMP13尚未有报道。BMP13,又名生长分化因子-6(growth differentiation factor 6,GDF6)或软骨来源的形态生成蛋白-2(cartilage-derivedmorphogenetic protein 2,CDMP2)。研究表明:BMP13参与骨和肌腱的修复,可刺激腱样细胞的增殖。笔者最新的研究结果揭示肝脏组织中有BMP13的表达并在肝脏代谢异常时具有差异表达。本文主要介绍BMP13生物功能研究的最新进展,尤其是BMP13在肝脏中的作用。