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反向衬底偏压下纳米N沟道金属氧化物半导体场效应晶体管中栅调制界面产生电流特性研究

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物理学报 2013年第18期62卷 486-492页

作者：陈海峰西安邮电大学电子工程学院西安710121

研究了反向衬底偏压VB下纳米N沟道金属氧化物半导体场效应晶体管中栅调制界面产生(GMG)电流IGMG特性,发现IGMG曲线的上升沿与下降沿随着|VB|的增大向右漂移.基于实验和理论模型分析,得出了VB与这种漂移之间的物理作用机制,漂移现象的产... 详细信息

研究了反向衬底偏压VB下纳米N沟道金属氧化物半导体场效应晶体管中栅调制界面产生(GMG)电流IGMG特性,发现IGMG曲线的上升沿与下降沿随着|VB|的增大向右漂移.基于实验和理论模型分析,得出了VB与这种漂移之间的物理作用机制,漂移现象的产生归因于衬底偏压VB调节了表面电势φs在栅电压VG中的占有比重:|VB|增大时相同VG下φs会变小,φs的变化继而引发上升沿产生率因子gr减小以及下降沿产生率因子gf增大.进一步发现IGMG上升沿与下降沿的最大跨导GMR,GMF在对数坐标系下与VB成线性关系,并且随着|VB|增加而增大.由于漏电压VD在IGMG上升沿与下降沿中的作用不同,三种VD下GMR-VB曲线重合而GMF-VB曲线则产生差异.增大VD会增强gf随VG的变化,因此使得给定VB下的GMF变大.同时这却导致了更大VD下GMF-VB曲线变化的趋势减缓,随着VD从0.2 V变为0.6 V,曲线的斜率s从0.09减小到0.03.

关键词：产生电流表面势衬底偏压 N沟道金属氧化物半导体场效应晶体管

THE IMPACT OF HORIZONTAL RESOLUTION ON THE INTENSITY AND MICROSTRUCTURE OF SUPER TYPHOON USAGI

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Journal of Tropical Meteorology 2019年第1期25卷 24-33页

作者： WEN Ying-fang LIU Yu-di TAN Wei-cai PENG Ke-man chen hai-feng College of Meteorology and Oceanography Defense University of Science and Technology Guangzhou Meteorological Bureau Unit No.75839 of People's Liberation Army Guiyang Meteorological Bureau

Typhoon Usagi(1319) was simulated by using the Advanced Weather Research and Forecasting numerical model(WRF) with different horizontal resolution to understand the impact of horizontal resolution on the intensity and characteristics of typhoon's microstructures(including dynamic and microphysical structure). The simulated results show that the improvement of horizontal resolution from 5 km to 1 km has little impact on the track which is comparable to real results, but has a significant impact on the intensity and microstructures, and especially, the impact on wind speed at 10 m height, the vertical movement and precipitation intensity is the greatest. When the resolution is increased to 1 km, the intensity and characteristics of typhoon's microstructures can be simulated better. In lower resolution simulations, some structural characteristics, including more asymmetrical and more outward tilted eyewall, and less water vapor flux on sea surface, work together to weaken typhoon intensity.

关键词： typhoon horizontal resolution microstructure Usagi numerical simulation

Dysideanones F—G and dysiherbols D—E,unusual sesquiterpene quinones with rearranged skeletons from the marine sponge Dysidea avara

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Chinese Journal of Natural Medicines 2022年第2期20卷 148-154页

作者： LIU Hong-Yan ZHOU Mi SHANG Ru-Yi HONG Li-Li WANG Guang-Hui TIAN Wen-Jing JIAO Wei-Hua chen hai-feng LIN Hou-Wenu School of Pharmaceutical Sciences Xiamen UniversityXiamen 361102China Research Center for Marine Drugs State Key Laboratory of Oncogene and Related GenesDepartment of PharmacyRenji HospitalShanghai Jiao Tong University School of MedicineShanghai 200127China

Four new sesquiterpene quinone meroterpenoids,dysideanones F—G(1—2)and dysiherbols D—E(3—4),were isolated from the marine sponge Dysidea avara collected from the South China *** new structures were elucidated by extensive analysis of spectroscopic data including HR-MS and 1D and 2D NMR spectra,and their absolute configurations were assigned by single-crystal X-ray diffraction and ECD ***-inflammatory evaluation showed that dysiherbols D—E(3—4)exhibited moderate inhibitory activity on TNF-α-induced NF-κB activation in human HEK-293T cells with IC_(50)values of 10.2 and 8.6μmol·L^(-1),respectively.

关键词： Dysidea avara Sesquiterpene quinones Marine sponge Anti-inflammatory Marine natural products

Hand-assisted laparoscopic splenectomy for splenomegaly:a comparative study with conventional laparoscopic splenectomy

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Chinese Medical Journal 2007年第1期120卷 41-45页

作者： WANG Ke-xin HU San-yuan ZHANG Guang-yong chen Bo ZHANG hai-feng Department of General Surgery Qilu Hospital of ShandongUniversity Jinan 250012 China

Background Laparoscopic splenectomy （LS） has been considered as the standard approach to remove a normal-sized spleen, but it is facing technical challenges when applied to splenomegaly. Hand-assisted laparoscopic technique was designed to facilitate the performance of difficult laparoscopic procedure. This study was aimed to evaluate the efficacy and superiority of hand-assisted laparoscopic splenectomy （HALS） for splenomegaly. Methods From November 1994 to January 2006, 36 patients with splenomegaly （final spleen weight 〉700 g） were treated with laparoscopic operations for splenectomy in our hospital. Conventional LS was performed in 16 patients （7 men and 9 women, group 1） and HALS in the other 20 patients （12 men and 8 women, group 2）. The patients＇ features, intraoperative details and the postoperative outcomes in the both groups were compared. Results The both groups were comparable in the terms of patient＇s age （（38±12） years vs （43±14）years, P〉0.05）, the greatest splenic diameter （（24±5）cm vs （27±7）cm, P〉0.05）, preoperative platelet count （（118±94）×10^9/L vs （97±81）×10^9/L P〉0.05） and diagnosis. Compared with LS group, operation time （（195±71） minutes vs （141±64） minutes, P〈0.05） was shorter, intraoperative blood loss （（138±80）ml VS （86±45）ml, P〈0.05） and conversion rate （4/16 vs 0/20, P〈0.05） were lower, but hospital stay （（5.3±3.8） days vs （7.4±1.6） days, P〈0.05） was longer in HALS group. There was no significant difference in the aspects of intraoperative and postoperative complication rate （2/16 vs 0/20, P〉0.05） or recovery time of gastrointestinal function （（16.3±11.6） hours vs （18.7±8.1）hours, p〉0.05） between the two groups. Conclusions In the cases of splenomegaly, HALS significantly facilitates the surgical procedure and reduces the operational risk, while maintaining the advantages of conventional LS. HALS is more feasible and more effective than conventional LS for the removal of splenomegaly of splenomegaly.

关键词： splenomegaly laparoscopy splenectomy surgical procedures, minimally invasive

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监检衔接下政务处分的检察监督

南京大学学报（哲学．人文科学．社会科学） 2024年第4期61卷 139-146,159,160页

作者：陈海锋上海社会科学院法学研究所上海市200020

处置是国家监察权的重要职能之一。在当下的国家监察权运行中,政务处分与移送审查起诉的标准存在模糊空间、监察权的运行程序具有封闭性,造成监察处置中以政务处分替代移送审查起诉的问题。《监察法》并未赋予监察机关针对职务犯罪案件... 详细信息

处置是国家监察权的重要职能之一。在当下的国家监察权运行中,政务处分与移送审查起诉的标准存在模糊空间、监察权的运行程序具有封闭性,造成监察处置中以政务处分替代移送审查起诉的问题。《监察法》并未赋予监察机关针对职务犯罪案件处理的裁量权,替代移送审查起诉的不当政务处分僭越检察权。为促进监察法治目标的实现,检察机关应当根据宪法定位,建立政务处分检察监督制度,强化对监察处置权的监督与制约。具体包括,以选择性不起诉制度为基础,建构检察机关的预先核准制;结合检察权对监察调查的介入,建立依申请介入的事后监督机制,同时以监检职能管辖完善、监检衔接平台建立、职务犯罪定罪量刑标准细化与政务处分的公开说理等作为监督的保障。

关键词：监检衔接政务处分检察监督预先核准检察介入

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中国非法供述排除中的被告人责任

北京社会科学 2013年第6期 48-55页

作者：陈海锋上海社会科学院法学研究所上海200020

中国当前审判程序中的非法供述排除,被告人不是享有权利,而是承担对供述非法的初步证明责任。从理论上看,被告人无法也无力承担这种证明责任;从当前不多的实例看,被告人的责任有可能异化为对供述合法的证明责任,从而导致排除程序启动的... 详细信息

中国当前审判程序中的非法供述排除,被告人不是享有权利,而是承担对供述非法的初步证明责任。从理论上看,被告人无法也无力承担这种证明责任;从当前不多的实例看,被告人的责任有可能异化为对供述合法的证明责任,从而导致排除程序启动的困难与非法供述排除的不畅。中国应当把被告人在非法供述中的责任限制为主张责任,同时设定诬告陷害或藐视法庭等作为滥用主张责任的惩罚。

关键词：被告人非法供述初步证明责任主张责任

Secondary metabolites of petri-dish cultured Antrodia camphorata and their hepatoprotective activities against alcohol-induced liver injury in mice

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Chinese Journal of Natural Medicines 2019年第1期17卷 33-42页

作者： WU Yu TIAN Wen-Jing GAO Shuo LIAO Zu-Jian WANG Guang-Hui LO Jir-Mehng LIN Pei-Hsin ZENG De-Quan QIU Da-Ren LIU Xiang-Zhong ZHOU Mi LIN Ting chen hai-feng Fujian Provincial Key Laboratory of Innovative Drug Target School of Pharmaceutical SciencesXiamen University Industrial Technology Research Institute

Antrodia camphorata, a well-known and highly valued edible medicinal mushroom with intriguing activities like liver protection, has been traditionally used for the treatment of alcoholic liver disease. A. camphorata shows highly medicinal and commercial values with the demand far exceeds the available supply. Thus, the petri-dish cultured A. camphorata(PDCA) is expected to develope as a substitute. In this paper, nineteen triterpenes were isolated from PDCA, and thirteen of them were the unique anthroic acids in A. camphorata, including the main content antcin K, which suggested that PDCA produced a large array of the same anthroic acids as the wild one. Furthermore, no obvious acute toxicity was found suggesting the edible safety of PDCA. In mice alcohol-induced liver injury model, triglyceride(TG), aspartate aminotransferase(AST), alanine aminotransferase(ALT), and malondialdehyde(MDA) had been reduced by the PDCA powder as well as the main content antcin K, which indicated that the PDCA could protect alcoholic liver injury in mice model and antcin K could be the effective component responsible for the hepatoprotective activities of PDCA against alcoholic liver diseases.

关键词： Petri-dish Antrodia camphorata Hepatoprotective

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论以研究人的本性为实质的历史唯物主义

兰州大学学报（社会科学版） 2006年第4期34卷 84-87页

作者：陈海丰大连外国语学院韩国语系辽宁大连116002

历史唯物主义的实质,是把历史理解为人的有意识的生命活动过程,历史即人的本质的实现过程。这种以研究人的本性为实质的历史唯物主义,是科学社会主义的坚实理论基础,也是在今天落实以人为本的科学发展观的理论保证。

关键词：历史唯物主义人的本性

含持续预载的旋转弹簧振动系统键合图建模与仿真

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振动与冲击 2011年第5期30卷 127-130,144页

作者：唐进元陈海锋中南大学现代复杂装备设计与极端制造教育部重点实验室中南大学机电工程学院长沙410083

针对键合图难以表达的弹簧初始载荷的添加和保持问题,以含持续预载的旋转弹簧振动系统为研究对象,用两个容性元件描述含持续预载的弹簧,根据振动系统的拉格朗日方程,建立整个系统的键合图模型,采用20-sim仿真软件对含有持续预载和不含... 详细信息

针对键合图难以表达的弹簧初始载荷的添加和保持问题,以含持续预载的旋转弹簧振动系统为研究对象,用两个容性元件描述含持续预载的弹簧,根据振动系统的拉格朗日方程,建立整个系统的键合图模型,采用20-sim仿真软件对含有持续预载和不含持续预载的模型分别进行仿真,研究其对质量块振动特性的影响,为验证键合图模型的正确性,运用ADAMS软件对系统进行动力学仿真,两种软件仿真结果进行对比,验证含持续预载的旋转弹簧振动系统键合图模型的正确性。

关键词：持续预载弹簧键合图理论动力学仿真 20-sim