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Layer-by-layer epitaxy growth of thickness-controllable two-dimensional tungsten disulfide

Science China(Information Sciences) 2024年第5期67卷 302-310页

作者： Jieyuan LIANG Zixing ZOU Junwu LIANG Di WANG biao WANG Anshi chu Jiali YI Cheng ZHANG Lizhen FANG Tian ZHANG Huawei LIU Xiaoli ZHU Dong LI Anlian PAN Key Laboratory for Micro-Nano Physics and Technology of Hunan Province State Key Laboratory of Chemo/Biosensing and Chemometrics Hunan Institute of Optoelectronic IntegrationCollege of Materials Science and Engineering School of Physics and ElectronicsHunan University School of Electronic Information and Electrical Engineering Changsha University School of Physics and Telecommunication Engineering Yulin Normal University Units Semiconductor Technology Co. Ltd. School of Physics and Electronics Hunan Normal University

Bilayer transition metal dichalcogenides（TMDs） balance the high mobility of single layers with the high state density of multilayers and therefore have promising application prospects in high-performance electronics. However, the layer-controlled growth of 2D materials is still confronted with challenges such as poor repeatability between different labs and a limited understanding of the growth mechanism at the atomic scale. Herein, we report a new carbon-assisted chemical vapor deposition process that can realize the growth of WS2sheets with high yield, precise thickness controllability, and repeatability. We show that carbon can act as a reducing agent and catalyst that preferentially reacts with the WO3precursor to form intermediate WO3-xproducts with low-valence state W. The resulting oxycarbide gas has a low surface adsorption energy when deposited on the surface of as-grown WS2, which provides nucleation sites for the subsequent layer of WS2growth and leads to the vertical growth of WS2sheets. The growth mechanism is thoroughly investigated. Electrical transport measurements show that the produced bilayer WS2possesses a high carrier mobility(up to 58 cm2·V-1·s-1) and small subthreshold swing（estimated to be 148 mV/decade）,which are among the best reported results for TMDs produced using CVD.

关键词： WS$_2$ thickness-controlled growth chemical vapor deposition additive carbon

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Feedforward-based Generalized Predictive Control for Outlet Temperature of Calciner

Feedforward-based Generalized Predictive Control for Outlet ...

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第40届中国控制会议

作者： Wei Chen Xiang Gao Xipeng Chen Yong Cheng biao chu Hongtu Zhang School of Electrical and Automation Engineering Hefei University of Technology Hefei Cement Research and Design Institute Limited company

The calciner is the key equipment in the new dry cement technology,the stable control of whose outlet temperature directly affects the quality of *** on the problems of large time delay and multiple disturbances in the calciner outlet temperature control,this paper proposes a feedforward-based generalized predictive control *** of all,by analyzing the mechanism model of calciner outlet temperature,the dominant factors and model structure are ***,a large number of real-time data is used to identify the autoregressive moving average with exogenous input（ARMAX） data-driven ***,the feedforward-based generalized predictive control algorithm is proposed,and its simulation verification and semi-physical platform experiment are carried *** results show that the proposed algorithm performs a significant control effect,reduces the overshoot,and shortens the response time.

关键词： Calciner outlet temperature ARMAX data-driven model Generalized predictive control Feedforward control

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基于增量方法的均匀B样条曲线快速生成算法

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计算机工程与应用 2006年第14期42卷 9-10页

作者：褚标朱功勤合肥工业大学计算机与信息学院合肥230009

E-mail:hfgdhbt@***摘要论文在分析函数的Tailor级数展开后,给出了一种基于增量方法的均匀B样条曲线的生成算法。该算法在初始化后,只用到加法运算,效率极高。该算法还可推广到非均匀B曲线曲面的生成,具有广泛的应用价值。

关键词：均匀B样条增量方法生成算法 Tailor级数

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Four new species and a key to species of Siobla(Hymenoptera: Tenthredinidae) from Tibet, China

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Entomotaxonomia 2015年第4期37卷 303-313页

作者：牛耕耘刘婷褚彪魏美才中南林业科技大学经济林培育与保护省部共建教育部重点实验室湖南长沙410004

The species of Siobla Cameron from Tibet, China are investigated. Four new species are described：Siobla albomaculata Niu Wei sp. nov., S. chayuica Niu Wei sp. nov., S. muotuoensis Niu Wei sp. nov.,and S. unicincta Ni... 详细信息

关键词： Tenthredininae Sioblini taxonomy

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Two new species of Macrophya Dahlbom(Hymenoptera:Tenthredinidae) with a key to species of the Macrophya annulitibia group from China

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Entomotaxonomia 2015年第1期37卷 72-80页

作者：刘萌萌褚彪肖炜李泽建中南林业科技大学昆虫系统与进化生物学实验室湖南长沙410000 丽水市林业科学研究院浙江丽水323000

In the genus Macrophya, the annulitibia group is proposed to include five species from China, lnala and Japan. Two new species belonging to this species group are described from China： Macrophya shengi Li ＆ chu sp. nov. from Sichuan and Macrophya xinan Li ＆ Liu sp. nov. from Tibet and Sichuan. Descriptions and illustrations are given to separate them from the other species of the annulitibia group. A key to all known species of the annulitibia group from China is provided. Type specimens are deposited in the Insect Collection of Central South University of Forestry and Technology, Changsha, Hunan, China.

关键词： Symphyta Tenthredinoidea taxonomy sawflies

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Clinical and Laboratory Findings of Nonacute Neurobrucellosis

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Chinese Medical Journal 2015年第13期128卷 1831-1833页

作者： Li-Dong Jiao Chang-biao chu Chhetri Jagadish Kumar Jie Cui Xian-Ling Wang Li-Yong Wu Cun-Jiang Li Xiang-Bo Wang Department of Neurology Xuanwu Hospital Capital Medical University Beijing 100053 China Department of Neurology You Anmen Hospital Beijing 100069 China

Brucellosis is the most common zoonotic infection in the world. It is an endemic disease in many areas throughout the world. Human brucellosis is a multisystem disease that may present with a broad spectrum of clinical manifestations. The central nervous system （CNS） involvement is a rare but serious neurological complication of brucellosis. Neurobrucellosis （NB） often is underdiagnosed, which is partly because of unawareness about the disease among the treating physicians. Clinically nonacute NB is more common than acute NB. Therelbre, in order to better understand the nonacute NB, we summarized 14 cases, aimed to shed light to detailed neurologic features of nonacute NB, as well as their laboratory findings.

关键词： Brucellosis Neurobrucellosis Complication

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Treadmill exercise in combination with acousto-optic and olfactory stimulation improves cognitive function in APP/PS1 mice through the brain-derived neurotrophic factor-and Cygb-associated signaling pathways

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Neural Regeneration Research 2025年第09期 2706-2726页

作者： biao Xiao Chaoyang chu Zhicheng Lin Tianyuan Fang Yuyu Zhou chuxia Zhang Jianghui Shan Shiyu Chen Liping Li Department of Physiology and Pharmacology Health Science CenterNingbo University Ningbo Key Laboratory of Behavioral Neuroscience Health Science CenterNingbo University Key Laboratory of Addiction Research of Zhejiang Province

A reduction in adult neurogenesis is associated with behavioral abnormalities in patients with Alzheimer's ***,enhancing adult neurogenesis represents a promising therapeutic approach for mitigating disease symptoms and ***,nonpharmacological interventions aimed at inducing adult neurogenesis are currently *** individual non-pharmacological interventions,such as aerobic exercise,acousto-optic stimulation,and olfactory stimulation,have shown limited capacity to improve neurogenesis and cognitive function in patients with Alzheimer's disease,the therapeutic effect of a strategy that combines these interventions has not been fully *** this study,we observed an age-dependent decrease in adult neurogenesis and a concurrent increase in amyloid-beta accumulation in the hippocampus of amyloid precursor protein/presenilin 1 mice aged 2-8 *** deposition became evident at 4 months,while neurogenesis declined by 6 months,further deteriorating as the disease ***,following a 4-week multifactor stimulation protocol,which encompassed treadmill running(46 min/d,10 m/min,6 days per week),40 Hz acousto-optic stimulation(1 hour/day,6 days/week),and olfactory stimulation(1 hour/day,6 days/week),we found a significant increase in the number of newborn cells(5'-bromo-2'-deoxyuridine-positive cells),immature neurons(doublecortin-positive cells),newborn immature neurons(5'-bromo-2'-deoxyuridine-positive/doublecortin-positive cells),and newborn astrocytes(5'-bromo-2'-deoxyuridine-positive/glial fibrillary acidic protein-positive cells).Additionally,the amyloid-beta load in the hippocampus *** findings suggest that multifactor stimulation can enhance adult hippocampal neurogenesis and mitigate amyloid-beta neuropathology in amyloid precursor protein/presenilin 1 ***,cognitive abilities were improved,and depressive symptoms were alleviated in amyloid precursor protein/presenilin 1 mice

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Isolation and differentiation of embryonic stem cells from BALB/c mouse

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Neuroscience Bulletin 2006年第1期22卷 7-13页

作者： Wei GONG Zhuo-Jing LUO Hua HAN Hong-Yan QIN You-biao chu Xue-Yu HU Li-Feng LAN Department of Orthopaedics XiJing Hospital the Fourth Military University Xi＇an 710032 China

Objective To invest the efficient method which can culture and induce embryonic stem cells to neuroeyte in vitro. Methods Isolate the blastula o f 3.5 d from BALB/c species mouse. Culture the cells from inner cell mass （inner cell mass, ICM） which were isolated by mechanical method on the mouse embryonic fibroblaste cell （MEF） feeder layer or 0.1% gelatin coated dishes. The stem ceils were identified by characterized morphology, alkaline phosphatase stain, differential potency in vivo and immunoehemistry stain. The isolated cells were differentiated by serial induction method that mimicking the intrinsic developmental process of the neural system. Results The isolated cells were positive for alkaline phosphatatse and SSEA-1 （ stage specific embryonic antigen 1 ）. Moreover they were identified pluripotent by differentiation in vivo. Therefore the isolated ceils presented the characters of ESCs. Then the isolated cells were able to differentiate into neuroeytes in vitro. Conclusion Mouse embryonic stem ceils isolation, culture and differentiation system has been established.

关键词： isolation and culture BALB/c mouse embryonic stem cells differentiation neurocyte

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基于有限元模态综合与结构鲁棒性分析的叉车方向盘怠速振动抑制

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中国科学技术大学学报 2013年第6期43卷 491-496页

作者：葛新方竺长安褚彪申远中国科学技术大学精密机械与精密仪器系安徽合肥230027 合肥师范学院电子信息工程学院安徽合肥230601

针对某型叉车方向盘怠速工况下的剧烈振动现象,运用有限元仿真方法对叉车方向盘总成进行参数化建模及有限元模态综合分析,结合现场实测模态试验找出叉车方向盘总成剧烈振动的原因;在对方向盘系统进行结构重设计时,充分考虑零部件加工误... 详细信息

针对某型叉车方向盘怠速工况下的剧烈振动现象,运用有限元仿真方法对叉车方向盘总成进行参数化建模及有限元模态综合分析,结合现场实测模态试验找出叉车方向盘总成剧烈振动的原因;在对方向盘系统进行结构重设计时,充分考虑零部件加工误差对系统性能的影响,提出具有结构鲁棒性的结构重设计目标及相应的设计方案;运用有限元仿真与样机实测试验,验证所提出方向盘振动抑制方案的有效性;有限元仿真与样机试验测试结果表明,该型叉车方向盘在怠速工况下的振动得到有效抑制.

关键词：叉车方向盘怠速工况模态综合结构鲁棒性分析振动抑制

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浅析工业互联网在水泥装备行业的应用

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水泥工程 2020年第6期 64-65,70页

作者：褚彪合肥水泥研究设计院有限公司安徽合肥230051

作为数字化浪潮下新一代信息技术与工业经济深度融合的产物,工业互联网在多行业取得积极进展,但其在水泥装备行业的应用目前仍处于起步阶段。本文结合我国水泥装备行业的现状,分析工业互联网平台的架构组成,并进一步阐述了工业互联网在... 详细信息

作为数字化浪潮下新一代信息技术与工业经济深度融合的产物,工业互联网在多行业取得积极进展,但其在水泥装备行业的应用目前仍处于起步阶段。本文结合我国水泥装备行业的现状,分析工业互联网平台的架构组成,并进一步阐述了工业互联网在智能生产管理、智能装备研发、智能设备管理与预知性维护等水泥装备行业的典型应用场景,以期为水泥装备行业的工业互联网应用探索提供启发。

关键词：工业互联网平台架构水泥装备边缘计算预知性维护

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