动态应力下功率n-LDMOS器件热载流子退化恢复效应

针对功率n-LDMOS器件在动态应力条件下的热载流子退化恢复效应进行了实验和理论研究.电荷泵实验测试和器件专用计算机辅助软件的仿真分析结果表明,在施加不同的动态应力条件下,功率n-LDMOS器件存在2种主要的热载流子退化机理,即鸟嘴区域的热空穴注入和沟道区域的界面态产生,均有明显的退化恢复效应.对功率n-LDMOS器件施加2个连续3 600 s的不同应力,观察每个阶段结束时刻的CP电流曲线,发现该器件在应力变换期间确实发生了热空穴的退陷阱效应.然后,对功率n-LDMOS器件施加3个连续3 600 s的不同应力,观察每个阶段结束时刻的CP电流曲线,发现器件处于关断阶段时,已产生的界面态存在一定程度的复合.     

Observation of robust edge superconductivity in Fe(Se,Te) under strong magnetic perturbation

The iron-chalcogenide high temperature superconductor Fe(Se,Te) (FST) has been reported to exhibit complex magnetic ordering and nontrivial band topology which ...     

Multifunctions of histone H1 proteins

Among various histones, histone H1 proteins have been appreciated for their multiple functions in diverse biological processes. In addition to being a structural protein in chromatin, H1 proteins also play critical roles in cell cycle, gene expression, and development. Recent studies reveal the possible effects of H1 in some diseases, such as cancer and neurodegenerative diseases. Here, we review different variants of HI, the functions, and post translational modifications of ill variants are also discussed.     

“五四”前后河南的教育改革述论

本文着重论述了１９１８年开始的河南教育改革的主要内容、形式及社会效应，分析了这次改革的历史背景、重要意义，总结了留给后人的经验教训     

棉花光合特性研究(综述)

本文阐述了棉花光合特性的研究进展概况，并对棉花产量、冠层结构与光合特性的关系研究加以概括。     

高校法制教育与心理教育整合研究

研究高校法制教育与心理教育的整合,主要目的是将两种教育融会贯通,真正达到教育大学生,指引他们形成正确的价值观、人生观以及世界观的目标。可从教材整合、授课内容丰富、专业师资力量培养、利用现代教学设备方面来整合心理教育与法律教育。     

MetaOJ: A Massive Distributed Online Judge System

Online Judge(OJ) systems are a basic and important component of computer education. Here, we present MetaOJ, an OJ system that can be used for holding massive programming tests online. MetaOJ is designed to create a distributed, fault-tolerant, and easy-to-scale OJ system from an existing ordinary OJ system by adding several interfaces into it and creating multiple instances of it. Our case on modifying the TUOJ system shows that the modification adds no more than 3% lines of code and the performance loss on a single OJ instance is no more than 12%. We also introduce mechanisms to integrate the system with cloud infrastructure to automate the deployment process. MetaOJ provides a solution for those OJ systems that are designed for a specific programming contest and are now facing performance bottlenecks.     

2D perovskites for field-effect transistors

Metal halide perovskites have gained a lot of attention in the field of solar cells and light-emitting diodes because of their excellent optoelectronic properti...     

《博雅汉语》的生词表注释语种研究

生词表在教材设计中具有举足轻重的地位,本文在语料库基础上对《博雅汉语》生词表注释语种的分布变化进行定量统计,进而探讨综合课教材注释语种的选择机制。     

胰腺未分化多形性肉瘤临床病理观察

探讨伴有巨细胞的胰腺未分化多形性肉瘤临床病理特点;对1例伴有破骨样巨细胞的胰腺未分化多形性肉瘤进行临床病理分析,并对相关文献进行复习;该肿瘤以在未分化多形性肉瘤中出现破骨细胞样巨细胞为特点,该巨细胞的核大小、形态及着色较为一致,且形态温和,CD68+;未分化多形性肉瘤中单核或多核肉瘤细胞vimentin+、CKP-、EMA-、CKL-、S-100-、αACT-、CEA-、Desmin-、Actin-和HMB45-;发生于胰腺的伴有巨细胞的未分化多形性肉瘤非常罕见,肿瘤标记物在其诊断和鉴别诊断中起重要作用。