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Effective N-methyl-2-pyrrolidone wet cleaning for fabricating highperformance monolayer MoS2 transistors

Nano Research 2019年第2期12卷 303-308页

作者： Po-Chun Chen Chih-pin Lin Chuan-Jie Hong Chih-Hao Yang Yun-Yan Lin Ming-Yang Li Lain-Jong Li Tung-Yuan Yu Chun-Jung Su Kai-Shin Li Yuan-Liang Zhong Tuo-Hung hou Yann-Wen Lan Department of Physics "National Taiwan Normal University" Taipei 11677 Taiwan China Department of Electronics Engineering and Institute of Electronics "National Chiao Tung University' Hsinchu 30010 Taiwan China Department of Physics and Center for Nanotechnology Chung Yuan Christian University Chungli 32023 Taiwan China Research Center for Applied Sciences Academia Siriica: Taipei 11529 Taiwan China Physical Sci. and Eng. King Abdullah University of Sci.and Technology Thuwal 23955 Kingdom of Saudi Arabia "National Nano Device Laboratories:"National Applied Research Laboratories" Hsinchu 30078 Taiwan China

Two-dimensional semiconductors,such as MoS2 are known to be highly susceptible to diverse molecular adsorbates on the surface during fabrication,which could adversely affect device *** ensure high device yield,uniformity and performance,the semiconductor industry has long employed wet chemical cleaning strategies to remove undesirable surface contaminations,adsorbates,and native oxides from the surface of Si wafers.A similarly effective surface cleaning technique for two-dimensional materials has not yet been fully *** this study,we propose a wet chemical cleaning strategy for MoS2 by using *** cleaning process not only preserves the intrinsic properties of monolayer MoS2,but also significantly improves the performance of monolayer MoS2 *** device on current of 12 μA·μm-1 for a channel length of 400 nm,contact resistance of 15 kΩ·μm,field-effect mobility of 15.5 cm^2·V^-1·s^-1,and the average on-off current ratio of 10^8 were successfully demonstrated.

关键词： monolayer M0S2 devices standard wet cleaning field-effect transistors N-methyl-2-pyrrolidone

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Does adding intraperitoneal paclitaxelto standard intraperitoneal regimenyield incremental survival？ A propensityscore？matched cohort study

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Chinese Journal of Cancer 2016年第5期35卷 264-267页

作者： Yen‑hou Chang Chien‑Hsing Lu Ming‑Shyen Yen Wai‑hou Lee Yi Chang Wei‑pin Chang Chi‑Mu Chuang Institute of Clinical Medicine School of MedicineNational Yang-Ming UniversityTaipei 11221TaiwanChina Department of Obstetrics and Gynecology Taichung Veterans General HospitalTaichung 40705TaiwanChina Institute of Biomedical Sciences National Chung Hsing UniversityTaichung 40227TaiwanChina Rong‑Hsing Research Center for Translational Medicine National Chung Hsing UniversityTaichung 40227TaiwanChina Department of Obstetrics and Gynecology Taipei Veterans General HospitalTaipei 11217TaiwanChina Department of Healthcare Management Yuanpei UniversityHsinchu 30015TaiwanChina

We recruited consecutive patients with stage Ⅲ epithelial ovarian,tubal,and peritoneal cancers who had optimal residual tumor after primary cytoreductive surgery and who received intraperitoneal chemotherapy between 2002 and *** propensity score-matched sample cohorts were *** found that the addition of paclitaxel as a second intraperitoneal agent on a 3-week dosing schedule did not yield significant incremental survival benefits over the intraperitoneal delivery of a single cisplatin-based *** our findings could be confirmed by a prospective randomized study,then it would be interesting to explore the efficacy of shifting back to a dose-dense intraperitoneal delivery of paclitaxel or a dose-dense delivery of a new formulation of paclitaxel for the patients with stage III epithelial ovarian,tubal,and peritoneal cancers.

关键词： Epithelial ovarian, tubal, and peritoneal cancer, Intraperitoneal chemotherapy, Propensity score, Survival,Clinical trials

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Gastrointestinal symptoms and associated factors in Chinese patients with functional dyspepsia

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World Journal of Gastroenterology 2013年第32期19卷 5357-5364页

作者： Jiao Yu Shi Liu Xiu-Cai Fang Jun Zhang Jun Gao Ying-Lian Xiao Li-Ming Zhu Fen-Rong Chen Zhao-Shen Li pin-Jin Hu Mei-Yun Ke Xiao-Hua hou Division of Gastroenterology Union HospitalTongji Medical CollegeHuazhong University of Science and Technology Division of Gastroenterology Peking Union Medical College HospitalChinese Academy of Medical Sciences Division of Gastroenterology Second Affiliated Hospital of Medical CollegeXi’an Jiaotong University Division of Gastroenterology Changhai HospitalSecond Military Medical University Division of Gastroenterology First Affiliated Hospital of Sun Yat-sen University

AIM: To study the evolution of gastrointestinal symptoms and associated factors in Chinese patients with functional dyspepsia (FD).METHODS: From June 2008 to November 2009, a total of 1049 patients with FD (65.3% female, mean age 42.80 ± 11.64 years) who visited the departments of gastroenterology in Wuhan, Beijing, Shanghai, Guangzhou, and Xi’an, China were referred for this study. All of the patients fulfilled the Rome III criteria for FD. Baseline demographic data, dyspepsia symptoms, anxiety, depression, sleep disorder, and drug treatment were assessed using self-report questionnaires. Patients completed questionnaires at baseline and after 1, 3, 6 and 12 mo follow-up. Comparison of dyspepsia symptoms between baseline and after follow-up was explored using multivariate analysis of variance of repeated measuring. Multiple linear regression was done to examine factors associated with outcome, both longitudinally and horizontally.RESULTS: Nine hundred and forty-three patients (89.9% of the original population) completed all four follow-ups. The average duration of follow-up was 12.24 ± 0.59 mo. During 1-year follow-up, the mean dyspeptic symptom score (DSS) in FD patients showed a significant gradually reduced trend (P < 0.001), and similar differences were found for all individual symptoms (P < 0.001). Multiple linear regression analysis showed that sex (P < 0.001), anxiety (P = 0.018), sleep disorder at 1-year follow-up (P = 0.019), weight loss (P < 0.001), consulting a physician (P < 0.001), and prokinetic use during 1-year follow-up (P = 0.035) were horizontally associated with DSS at 1-year follow-up. No relationship was found longitudinally between DSS at 1-year follow-up and patient characteristics at baseline.CONCLUSION: Female sex, anxiety, and sleep disorder, weight loss, consulting a physician and prokinetic use during 1-year follow-up were associated with outcome of FD.

关键词： Functional dyspepsia Gastrointestinal symptoms Dyspeptic symptom score Helicobacter pylori infection Postprandial distress syndrome Epigastric pain syndrome Rome III criteria

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预期冲击、房价波动与经济波动

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经济研究 2017年第4期52卷 48-63页

作者：王频侯成琪中南财经政法大学金融学院金融工程系武汉大学经济与管理学院金融系

本文通过在一个包含耐心家庭和缺乏耐心家庭两类家庭、包含消费品部门和房地产部门的DSGE模型中引入住房交易成本和住房价格加成的预期冲击,研究预期对住房价格和宏观经济的影响。研究发现:(1)参数识别检验和方差分解的结果表明,本文引... 详细信息

本文通过在一个包含耐心家庭和缺乏耐心家庭两类家庭、包含消费品部门和房地产部门的DSGE模型中引入住房交易成本和住房价格加成的预期冲击,研究预期对住房价格和宏观经济的影响。研究发现:(1)参数识别检验和方差分解的结果表明,本文引入的预期冲击,尤其是住房交易成本和住房价格加成的预期冲击,不仅具有理论上的合理性,而且具有经验上的识别性和重要性。(2)虽然当期住房价格上涨会增加住房使用者成本,但是如果预期未来住房价格会大幅上涨,家庭的住房使用者成本也会下降,从而出现越涨越买的现象。(3)如果政府因为房价上涨过快而实施增加住房交易成本等房地产业的紧缩政策,但是公众预期未来政府会因为宏观经济下行转而采取房地产业的扩张政策,则这种预期会使当前的紧缩政策失效。(4)如果政府能够引导公众形成正确的预期,则能够改善房地产业调控政策的经济效果;而公众的错误预期会增加经济的波动,因为必须进行反向修正来抵消错误预期对经济的影响。

关键词：预期冲击住房价格住房交易成本住房使用者成本经济波动

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基于连接函数的整合风险度量研究

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统计研究 2008年第11期25卷 72-80页

作者：侯成琪王频武汉大学经济与管理学院讲师中南财经政法大学新华金融保险学院讲师

本文利用连接函数(Copula)解决整合风险管理中不同类型风险的联合分布建模问题,提出了基于连接函数的整合风险度量Copula-VaR及其蒙特卡洛模拟算法;以深圳发展银行和上海浦东发展银行为研究对象,将Copula-VaR与N-VaR和Add-VaR这两种业... 详细信息

本文利用连接函数(Copula)解决整合风险管理中不同类型风险的联合分布建模问题,提出了基于连接函数的整合风险度量Copula-VaR及其蒙特卡洛模拟算法;以深圳发展银行和上海浦东发展银行为研究对象,将Copula-VaR与N-VaR和Add-VaR这两种业界常用的近似整合风险度量方法进行了实证比较分析,发现:与Copula-VaR相比,N-VaR和Add-VaR存在高估风险的倾向,而其主要原因则是由于N-VaR和Add-VaR对信用收益率与市场收益率之间的相关结构进行了不符合实际的假设。

关键词：整合风险度量联合分布 VaR 连接函数

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增加光子对和减少光子对相干态的等阶Y压缩效应

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四川师范大学学报（自然科学版） 2007年第5期30卷 610-614页

作者：穆轶侯邦品四川师范大学物理与电子工程学院四川成都610066

关键词：对相干态增加光子对相干态减少光子对相干态等阶K次方Y压缩效应等阶Y压缩度

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对象随型粗糙面近红外单目视觉测量与基准图像自愈

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红外与毫米波学报 2024年第1期43卷 134-142页

作者：侯旺屈也频刘坚强吕余海海军研究院上海200436

针对复杂应用环境中近红外单目视觉位姿测量系统偏离预置合作目标对象后,无法完成位姿测量的特殊情况,提出一种以合作目标周边随型粗糙面图像为测量对象的单目视觉测量方法,以及图像受损后的动态自愈方法。通过将实时获取的随型粗糙面... 详细信息

针对复杂应用环境中近红外单目视觉位姿测量系统偏离预置合作目标对象后,无法完成位姿测量的特殊情况,提出一种以合作目标周边随型粗糙面图像为测量对象的单目视觉测量方法,以及图像受损后的动态自愈方法。通过将实时获取的随型粗糙面图像特征与预存基准图像特征进行匹配计算,完成特殊情况下的应急测量。同时,为减少随型粗糙面图像污染或受损后对位姿测量精度的影响,实时计算污染或受损程度并动态自愈基准图像特征。实验结果表明,以随型粗糙面为对象的位姿测量精度稍低于合作目标对象,但能够满足特殊情况下的应急使用需求,提高了测量系统的鲁棒性;当随型粗糙面图像污染或受损达到70%时,采用自愈处理与未做自愈处理相比,方位角测量误差减少72%以上,验证了基准图像自愈方法的有效性。

关键词：对象随型粗糙面近红外单目视觉测量基准图像自愈基准图像特征特征匹配

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Influence of rare earth Ce on hot deformation behavior of as-cast Mn18Cr18N high nitrogen austenitic stainless steel

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International Journal of Minerals,Metallurgy and Materials 2023年第2期30卷 324-334页

作者： Yushuo Li Yanwu Dong Zhouhua Jiang Qingfei Tang Shuyang Du Zhiwen hou School of Metallurgy Northeastern UniversityShenyang 110819China State Key Laboratory of Rolling and Automation Northeastern UniversityShenyang 110819China

The hot deformation behavior of Mn18Cr18N and Mn18Cr18N+Ce high nitrogen austenitic stainless steels at 1173-1473 K and 0.01-1 s^(-1) were investigated by thermal compression *** influence mechanism of Ce on the hot deformation behavior was analyzed by Ce-containing inclusions and segregation of *** results show that after the addition of Ce,large,angular,hard,and brittle inclusions(TiN-Al_(2)O_(3),TiN,and Al_(2)O_(3)) can be modified to fine and dispersed Ce-containing inclusions(Ce-Al-O-S and TiN-Ce-Al-O-S).During the solidification,Ce-containing inclusions can be used as heterogeneous nucleation particles to refine as-cast *** the hot deformation,Ce-containing inclusions can pin dislocation movement and grain boundary migration,induce dynamic recrystallization(DRX)nucleation,and avoid the formation and propagation of micro cracks and *** addition,during the solidification,Ce atoms enrich at the front of solid-li-quid interface,resulting in composition supercooling and refining the secondary ***,during the hot deformation,Ce atoms tend to segregate at the boundaries of DRX grains,inhibiting the growth of *** the synergistic effect of Ce-containing inclusions and Ce segregation,although the hot deformation resistance and hot deformation activation energy are improved,DRX is more likely to occur and the size of DRX grains is significantly refined,and the problem of hot deformation cracking can be ***,the microhardness of the samples was *** results show that compared with as-cast samples,the microhardness of hot-deformed samples increases signific-antly,and with the increase of DRX degree,the microhardness decreases *** addition,Ce can affect the microhardness of Mn18Cr18N steel by affecting as-cast and hot deformation microstructures.

关键词： rare earth hot deformation Mn18Cr18N steel non-metallic inclusions element segregation microhardness

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Preparation of Heavyweight Ultra-high Performance Concrete Using Barite Sand and Titanium-rich Heavy Slag Sand

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Journal of Wuhan University of Technology(Materials Science) 2021年第5期36卷 644-652页

作者： DING Qingjun DENG Chao YANG Jun ZHANG Gaozhan hou Dongshuai School of Materials Science and Engineering Wuhan University of TechnologyWuhan 430070China Advanced Building Materials Key Laboratory of Anhui Province School of Materials and Chemical EngineeringAnhui Jianzhu UniversityHefei 230601China School of Materials Science and Engineering Department of Civil EngineeringQingdao University of TechnologyQingdao 266033China

The heavyweight ultra-high performance concrete(HUHPC)was prepared with barite sand partially replaced by titanium-rich heavy slag sand(THS)at replacement proportion of 0%,30%,50%,70%and 100%in this *** results show that THS incorporation can effectively improve the mechanical properties and reduce the volume shrinkage of *** HUHPC with 50%THS replacement reaches an apparent density of 2890 kg/m^(3)(for fresh HUHPC),28 d compressive strength of 129 MPa,28 d flexural strength of 23 MPa,28 d flexural toughness of 28.4,56 d volume shrinkage of 359×10^(-4) and,as expected,excellent *** investigation demonstrates that the internal curing of pre-wetted THS promotes the hydration of the surrounding cement paste thereby strengthening the interfacial transition zone,resulting in the“hard shell”formation around aggregate to“protect”the ***,the“pin structure”significantly improves the cement paste-aggregate interfacial *** combination of“hard shell protection”and“pin structure”remarkably improve the mechanical properties of HUHPC produced with porous THS aggregate.

关键词： heavyweight ultra-high performance concrete titanium-rich heavy slag sand mechanical properties durability internal curing

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五能级原子系统中的多重电磁感应透明

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原子与分子物理学报 2008年第2期25卷 375-379页

作者：胡小会侯邦品四川师范大学物理与电子工程学院成都610068

利用半经典理论,研究了在相干外场驱动下的倒三脚架型原子系统的吸收性质.数值计算结果表明:通过调节相干场的Rabi频率,该系统可以呈现出三重、双重、单重电磁感应透明;在三重电磁感应透明中,透明窗的位置可以通过调节相干场的失谐量来... 详细信息

利用半经典理论,研究了在相干外场驱动下的倒三脚架型原子系统的吸收性质.数值计算结果表明:通过调节相干场的Rabi频率,该系统可以呈现出三重、双重、单重电磁感应透明;在三重电磁感应透明中,透明窗的位置可以通过调节相干场的失谐量来进行控制,而且透明点的位置可连续地变化,即在一定范围内存在一系列连续频率的探测光无吸收地通过介质.最后,在缀饰态表象中对上述现象给出了解释.

关键词：多重电磁感应透明倒三脚架型原子吸收性质

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