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2020-Transformative science in the pressure dimension

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Matter and Radiation at Extremes 2021年第1期6卷 1-2页

作者： Ho-Kwang Mao Bin Chen Huiyang Gou kuo li Jin liu lin Wang Hong Xiao Wenge Yang Center for High Pressure Science and Technology Advanced Research 10 Xibeiwang East RoadHaidianBeijing 100094China

Materials transform abruptly under compression,with their properties varying as strong functions of *** in highpressure and probe technology have enabled experimental characterizations up to several hundred gigapascal(GPa).Studies in the physical sciences are now expanding to include a vast previously uncharted pressure region in which transformative ideas and discoveries are becoming *** and Radiation under Extremes(MRE)is taking advantage of this opportunity to provide a forum for publishing the finest peer-reviewed research in highpressure science and technology on the basis of its interdisciplinary interest,importance,timeliness,and surprising *** MRE HP Special Volume gathers together a set of contemporary perspectives,highlights,reviews,and research articles in multiple disciplines of high-pressure physics,chemistry,materials,and geoscience that illustrate both current and forthcoming trends in this exciting research area.

关键词： expanding becoming publishing

Recent advances in high-pressure science and technology

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Matter and Radiation at Extremes 2016年第1期1卷 59-75页

作者： Ho-Kwang Mao Bin Chen Jiuhua Chen kuo li Jung-Fu lin Wenge Yang Haiyan Zheng Center for High Pressure Science and Technology Advanced Research Shanghai201203PR China

Recently we are witnessing the boom of high-pressure science and technology from a small niche field to becoming a major dimension in physical *** of the most important technological advances is the integration of synchrotron nanotechnology with the minute samples at ultrahigh *** of high pressure have greatly enhanced our understanding of the electronic,phonon,and doping effects on the newly emerged graphene and related 2D layered *** pressure has created exotic stoichiometry even in common Group 17,15,and 14 compounds and drastically altered the basic σ and π bonding of organic *** pressure measurements enable us to study the rheology and flow of mantle minerals in solid state,thus quantitatively constraining the *** also introduce a new approach to understand defect and plastic deformations of nano *** examples open new frontiers of high-pressure research.

关键词： High pressure science and technology Static high pressure Synchrotron X-ray probe Equation of state

撤机后序贯经鼻高流量湿化氧疗对肺癌根治术后呼吸衰竭患者的影响

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中国现代医学杂志 2022年第5期32卷 7-12页

作者：李洋刘雷李阔赵明理湖北文理学院附属医院(襄阳市中心医院)急诊科湖北襄阳441021 河南中医药大学第一附属医院胸外科河南郑州450046 华中科技大学同济医学院附属协和医院胸外科湖北武汉430022

目的探讨气管插管撤机后序贯经鼻高流量湿化氧疗对肺癌根治术后呼吸衰竭患者的影响。方法选取2017年7月—2021年6月就诊于湖北文理学院附属医院(襄阳市中心医院)的120例肺癌根治术后呼吸衰竭患者,根据术后氧疗方式不同分为干预组(60例)... 详细信息

目的探讨气管插管撤机后序贯经鼻高流量湿化氧疗对肺癌根治术后呼吸衰竭患者的影响。方法选取2017年7月—2021年6月就诊于湖北文理学院附属医院(襄阳市中心医院)的120例肺癌根治术后呼吸衰竭患者,根据术后氧疗方式不同分为干预组(60例)和对照组(60例)。两组均接受肺癌根治术,对照组术后气管插管撤机后采用常规面罩吸氧,干预组术后气管插管撤机后序贯经鼻高流量湿化氧疗。比较两组呼吸力学指标、血气指标、血清学指标、舒适度评分、气道湿化评分、急性生理学和慢性健康状况评价Ⅱ(APACHEⅡ)、不良反应等。结果治疗后14 d干预组呼吸频率(RR)、气道阻力(Raw)、平均气道压(Pm)均低于对照组(P<0.05);治疗后14 d干预组血氧饱和度(SaO_(2))、氧输送(DO_(2))水平、氧合指数(PaO_(2)/FiO_(2))均高于对照组(P<0.05);治疗后14 d干预组血清内皮素-1(ET-1)、中性粒细胞与淋巴细胞比值(NLR)、缺氧诱导因子1α(HIF-1α)、白细胞介素-6(IL-6)均低于对照组(P<0.05)。干预组舒适度评分、气道湿化评分及APACHEⅡ评分均低于对照组(P<0.05)。干预组不良反应总发生率(5.00%)低于对照组(16.67%)(P<0.05)。结论经鼻高流量湿化氧疗可有效改善肺癌根治术后呼吸衰竭患者的呼吸力学指标、血气指标、血清学指标及APACHEⅡ评分,降低炎症反应,患者舒适度较好,不良反应较少。

关键词：肺癌呼吸衰竭经鼻高流量湿化氧疗 APACHEⅡ 序贯氧疗

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稀土H13模具钢横向冲击性能影响因素分析

金属热处理 2022年第3期47卷 181-185页

作者：李阔孙明月徐斌李殿中中国科学院金属研究所沈阳材料科学国家研究中心辽宁沈阳110016 中国科学院金属研究所中国科学院核用材料与安全评价重点实验室辽宁沈阳110016

为探究稀土H13模具钢锻件横向冲击性能偏低的影响因素,对钢材锻件冒口端试片分别进行低倍组织分析、显微组织分析、SEM以及EDS分析。结果表明,添加稀土的H13模具钢的低倍组织和显微组织(包括带状组织、非金属夹杂物和网状碳化物)都能满... 详细信息

为探究稀土H13模具钢锻件横向冲击性能偏低的影响因素,对钢材锻件冒口端试片分别进行低倍组织分析、显微组织分析、SEM以及EDS分析。结果表明,添加稀土的H13模具钢的低倍组织和显微组织(包括带状组织、非金属夹杂物和网状碳化物)都能满足不同标准中的技术要求,钢材的纯净度相对较高;单向拔长后,沿着主变形方向晶界处析出一定数量的链状或网状碳化物,枝晶间存在的大尺寸液析碳化物和基体组织中存在的未锻透枝晶组织是影响稀土H13模具钢横向冲击性能的主要因素。

关键词：稀土H13模具钢横向冲击性能等向性碳化物枝晶组织

High-efficiency ultra-fast all-optical photonic crystal diode based on the lateral-coupled nonlinear elliptical defect

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Chinese Physics B 2024年第3期33卷 453-458页

作者：李大星刘凯柱余春龙张括刘跃钦冯帅 School of Science Minzu University of ChinaBeijing 100081China Optoelectronics Research Center Minzu University of ChinaBeijing 100081China Engineering Research Center of Photonic Design Software Ministry of EducationBeijing 100081China School of Optoelectronic Engineering and Instrumentation Science Dalian University of TechnologyDalian 116024China

An all-optical Fano-like diode featuring a nonlinear lateral elliptical micro-cavity and a reflecting column in the photonic crystal waveguide is *** asymmetric micro-cavity is constructed by removing one rod and changing the shape of the lateral rod from a circle to an ellipse.A reflecting pillar is also introduced into the waveguide to construct an F-P cavity with the elliptical defect and enhance the asymmetric transmission for the incident light wave transmitting rightwards and leftwards,*** designing the size of the ellipse and optimizing a reflecting rod at a suitable position,a maximum forward light transmittance of-1.14 dB and a minimum backward transmittance of-57.66 dB are achieved at the working wavelength of 1550.47 *** corresponding response time is about 10 ps when the intensity of the pump light beam resonant at 637 nm is 3.97 W/μm2.

关键词： photonic crystal all-optical diode Fano cavity unidirectional transmission

Image features of two rare mediastinal tumors: schwannoma of intrathoracic phrenic nerve and clear cell chondrosarcoma of the rib

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Chinese Medical Journal 2005年第17期118卷 1493-1496页

作者： Ting-Kai Leung Chien-Jui Cheng Chi-Ming Lee li-kuo Shen Hung-Jung Wang Ya-Yen Chen Diagnostic Radiology Department of Taipei Medical University Hospital Taipei Medical University Taipei China Pathology Department of Taipei Medical University Hospital Taipei Medical University Taipei China

The current report focuses on two patients of the same age who presented similar appearances on initial anteroposterior chest images. Follow-up images showed superoanterior and superoposterior mediastinal lesions. The first patient with noninvasive cystic thymoma was suspected before surgery, while the pathologic diagnosis was intrathoracic phrenic nerve schwannoma. The second patient was with an asymmetric, dumbbell-shaped paravertebral tumor over T3 and T4 on the left side. The preoperative diagnostic images were interpreted as showing a neurogenic tumor. However, the pathologic report was cell chondrosarcoma.

关键词： mediastinal tumors schwannoma phrenic nerve clear cell chondrosarcoma

新型半潜式浮式风机在不同流速下的动力响应特性研究

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船舶力学 2023年第2期27卷 185-194页

作者：乐丛欢李阔张浦阳丁红岩天津大学水利工程仿真与安全国家重点实验室天津300350 天津大学建筑工程学院天津300350

本文提出一种适用于50~120 m水深的新型半潜式浮式风机,用频域法研究浮式平台的水动力特性,通过建立风机-塔筒-浮式平台-系泊系统全耦合分析模型,考虑二阶差频波浪力作用,对其开展风、浪、流联合作用下的时域分析,重点分析不同流速条件... 详细信息

本文提出一种适用于50~120 m水深的新型半潜式浮式风机,用频域法研究浮式平台的水动力特性,通过建立风机-塔筒-浮式平台-系泊系统全耦合分析模型,考虑二阶差频波浪力作用,对其开展风、浪、流联合作用下的时域分析,重点分析不同流速条件下新型半潜式浮式风机耦合动力响应特性。分析结果表明:新型半潜式浮式风机结构设计合理,其固有周期能较好地避开波浪能量密集的周期范围,有效避免了共振发生;风浪条件一定的情况下,流速增大将使新型半潜式浮式风机的最大纵荡响应和锚链拉力显著增大,但对纵摇和艏摇响应有一定程度的抑制作用。流速变化对基础垂荡运动和发电功率影响较小。

关键词：海上风电半潜式浮式风机流速耦合动力响应

Assessment of Spatial Distribution and Submerged Scope for Storm Surge in the Pearl River Delta Region

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Agricultural Science & Technology 2011年第1期12卷 113-118,137页

作者： li kuo li Guo-sheng Institute of Geographic Sciences and Natural Resources Research Chinese Academy of SciencesBeijing 100101 Graduate School of the Chinese Academy of Sciences Beijing 100039

The aim of this study was to explore the spatial distribution and submerged scope for storm surge in the Pearl River Delta(PRD) *** on the data of storm surges in the PRD region in the past 30 years,the return periods of 12 tide-gauge stations for storm surges were calculated separately with the methods of Gumbel and *** data of another six tide-gauge stations in Guangdong Coast was quoted to depict the overall features of storm surges in *** least-square method,the spatial distribution models of storm surges in different return periods were established to reveal the distribution rule of the set-up values of storm *** spatial distribution curves of storm surges in different return periods in the PRD Region were drawn up based on the models and the terrain of Guangdong *** to the curves,the extreme set-up values of storm surges in 1 000,100,10 a return periods were determined on each spot of Guangdong *** the spatial analysis technology of ArcGIS,with the topography data of the PRD Region,the submerged scopes of flood caused by storm surge in 1 000,100,10 a return periods were drawn *** loss caused by storm surges was *** showed that the storm surges and the topography of PRD region jointly led to the serious flood in the PRD *** assessment would be useful for the planning and design department to make decision and provide government scientific basis for storm surge prediction,coastal engineering designing and the prevention of storm surge disaster.

关键词：空间分布模式风暴潮预报珠江三角洲地区淹没范围评估珠三角地区浪涌空间分析技术

航天异形紧固件加工多工位机床的控制系统设计

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制造技术与机床 2023年第11期 29-33页

作者：李雪晓李阔毕星瑞安阳鑫盛机床股份有限公司河南安阳455000 郑州大学机械与动力工程学院河南郑州450001 国家机床质量监督检验中心北京101312

针对航空航天领域某异形紧固件内孔生产工序分散、加工效率和加工精度低、加工成品一致性差,设计开发出以ZMC406运动控制器为控制核心的多工位专用机床。该机床由机械结构、气动系统和电气控制系统组成。文章主要阐述了控制系统的总体... 详细信息

针对航空航天领域某异形紧固件内孔生产工序分散、加工效率和加工精度低、加工成品一致性差,设计开发出以ZMC406运动控制器为控制核心的多工位专用机床。该机床由机械结构、气动系统和电气控制系统组成。文章主要阐述了控制系统的总体要求、各个控制系统模块、控制系统的软硬件设计。通过工控一体机触摸屏以EtherCAT为通讯协议对机床加工动作的控制和加工参数的设置,实现了异形紧固件内孔的集中化、自动化加工。机床实际加工试制结果表明机床生产节拍为8pcs/min,合格率在99%以上,提高了该异形紧固件的加工精度和效率,产品一致性较好,在航天异形紧固件生产制造领域具有一定应用推广价值。

关键词：异形紧固件多工位机床运动控制器控制系统