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Planarized THz quantum cascade lasers for broadband coherent photonics

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light(Science & Applications) 2022年第12期11卷 3098-3108页

作者： Urban Senica Andres Forrer Tudor Olariu Paolo Micheletti Sara Cibella Guido Torrioli Mattias Beck Jerome Faist Giacomo Scalari Quantum Optoelectronics Group Institute of Quantum ElectronicsETH Zurich8093 ZürichSwitzerland Istituto di Fotonica e Nanotecnologie CNRVia del Fosso del Cavaliere 10000133 RomeItaly

Recently,there has been a growing interest in integrated THz photonics for various applications in communications,spectroscopy and *** present a new integrated photonic platform based on active and passive elements integrated in a double-metal,high-confinement waveguide layout planarized with a low-loss *** extended top metallization keeps waveguide losses low while improving dispersion,thermal and RF properties,as it enables to decouple the design of THz and microwave ***-running on-chip quantum cascade laser combs spanning 800 GHz,harmonic states with over 1.1 THz bandwidth and RF-injected broadband incoherent states spanning over nearly 1.6 THz are observed using a homogeneous quantum-cascade active *** a strong external RF drive,actively mode-locked pulses as short as 4.4 ps can be produced,as measured by *** demonstrate as well passive waveguides with low insertion loss,enabling the tuning of the laser cavity boundary conditions and the cointegration of active and passive elements on the same THz photonic chip.

关键词： waveguide passive tuning

子宫内膜异位症在位内膜上皮类器官模型的建立及鉴定

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现代妇产科进展 2024年第6期33卷 427-432页

作者：张瑞琪杨玉娥马远李博巍李贝哈春芳宁夏医科大学银川750004 宁夏医科大学总医院银川750004 宁夏医科大学生育力保持教育部重点实验室银川750004

目的:探讨并验证构建人子宫内膜异位症(eMs)患者在位内膜上皮类器官模型的可行性及影响因素。方法:选择经腹腔镜手术并病理确诊为卵巢型eMs囊肿患者的新鲜在位内膜组织10例,组织消化法将在位内膜消化成单细胞,在基质胶Matrigel中培养7d... 详细信息

目的:探讨并验证构建人子宫内膜异位症(eMs)患者在位内膜上皮类器官模型的可行性及影响因素。方法:选择经腹腔镜手术并病理确诊为卵巢型eMs囊肿患者的新鲜在位内膜组织10例,组织消化法将在位内膜消化成单细胞,在基质胶Matrigel中培养7d构建eMs在位内膜上皮类器官模型。通过形态学、免疫组化、He染色、透射电镜检测等,与原在位内膜组织对比进行模型鉴定;雌激素1、5、10nmol/l干预后观察在位内膜上皮类器官直径的变化,初步探讨雌激素在eMs在位内膜上皮类器官构建中的作用。结果:10例患者在位内膜组织均成功构建eMs在位内膜上皮类器官,光学显微镜下显示在位内膜上皮类器官的数量可观,形态上呈类圆形3D立体结构,周围可见腺体结构;免疫组化显示上皮源性标记物及雌孕激素受体表达阳性属于内膜源性上皮;He染色显示在高倍镜下构建的在位内膜上皮类器官排列成腺腔样结构但腺体排列稀疏,较不规则,腔体内部分细胞形成分隔与原组织腺上皮结构相似;透射电镜显示在位内膜上皮类器官的内部超微结构与原在位内膜组织具有高度相似性;在培养基中加不同浓度雌二醇,10nmol/l雌激素浓度干预第6d的类器官直径明显大于对照组(PeMs在位内膜上皮类器官模型具有上皮性特征,与原在位内膜组织对比高度重现来源组织的结构、病理特性,可替代人子宫内膜异位症在位内膜组织用于eMs疾病药物的干预与基础实验的研究的建模。

关键词：子宫内膜异位症在位内膜腺上皮类器官模型雌激素

Veterans utilizing a federally qualified health center: a clinical snapshot

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Military medical Research 2023年第1期10卷 134-136页

作者： Thad e.Abrams Bruce Alexander Antonio Flores M.Bryant Howren VHA Office of Rural Health Veterans Rural Health Resource CenterIowa CityIA 52246USA Carver College of medicine The University of IowaIowa CityIA 52242USA Center for Access Delivery Research and evaluation(CADRe) VA Iowa City Healthcare SystemIowa CityIA 52246USA Community Health Centers of Southeastern Iowa West BurlingtonIA 52655USA Department of Behavioral Sciences and Social medicine College of MedicineFlorida State UniversityTallahasseeFL 32306USA Florida Blue Center for Rural Health Research and Policy College of MedicineFlorida State UniversityTallahasseeFL 32306USA

Dear editor,Te Veterans Health Administration(VHA)provides healthcare for over 9 million enrolled veterans with approximately 2.7 million of those residing in rural areas[1].Te MISSION Act of 2018 emphasizes VHA collaboration with Federally Qualifed Healthcare Centers(FQHC)to serve rural residing veterans and nearly all existing collaborations involve arrangement of payment for community-based care by VHA to ***,there is a paucity of descriptive clinical data on existing cross-system collaborations which may help characterize these veterans and aid understanding of conditions for which they may receive treatment across *** data has implications for workforce training,development,and resource allocation[2].Te objective of this report is to describe diferent clinical profles between two mutually exclusive samples:veterans engaged in FQHC only use,and VHA-enrolled veterans engaged in dual VHA and FQHC use.

关键词： Veterans Federally qualified healthcare centers Healthcare utilization Dual use mental health

Micromagnetic Structure of Co-Rich Amorphous Microwires

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Journal of Materials Science & Technology 2000年第2期16卷 183-185页

作者： e.e.Shalyguina and l.M.Bekoeva (Physical Faculty, Moscow State University, 119899, Moscow, Russia) Kyung-Ho Shin (Korea Institute of Science & Technology , P.O. Box 131, Cheongryang, Seoul 130-650, Korea) Physical Faculty Moscow State University 119899 Moscow Russian Federation Korea Institute of Science and Technology P.O. Box 131 Cheongryang Seoul 130-650 South Korea

Results on the magneto-optical investigation of near-surface micromagnetic structure (MMS) of Co69Fe4Si12B15 amorphous wires 10～50 μm in diameter are presented. The wires were prepared by the rapid solidification technique. The magnetic field H was applied along or perpendicular to the wire length. By scanning the light spot of 1 μm-diameter along the wire length, distributions of magnetization components (both parallel and perpendicular to the applied magnetic field) and also local hysteresis characteristics of the wires were measured. It was experimentally established that owing to the compressive stresses from quenching coupled with negative magnetostriction of Co-rich amorphous materials, the examined microwires have a circumferential magnetic anisotropy. In consequence, there are the near-surface alternate left- and right-handled circular domains in these samples. The dependencies of the circular domain width on the wire diameter and length were found. It was discovered that in the axial magnetic field local hysteresis loops are unhysteretic. It was proved that in this case the dominant mechanism of the wire magnetization reversal is rotation of local magnetization vectors in circular domains.

关键词： Rich Micromagnetic Structure of Co-Rich Amorphous Microwires MMS

Optical Absorption and Adsorption of Natural Dye extracts on TiO2 Scaffolds： Comparison between Green leaf- and Red Fruit-extracts

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材料科学与工程（中英文B版） 2017年第4期7卷 166-170页

作者： Hnin ei Maung me me Theint Nyein Wint lwin Than Zaw Oo Department of Physics University of Mandalay Mandalay 100103 Myanmar

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CO_(2)催化加氢合成甲醇研究进展

石油炼制与化工 2024年第2期55卷 75-83页

作者：王佳静王建文李茂帅宋奕慧王石维吕静鲍晓军马新宾福州大学石油化工学院福州350116 天津大学化工学院天津大学浙江研究院

热催化CO_(2)加氢制甲醇具有显著的减碳效应,能够有效储存可再生能源,具有广阔的工业应用前景。介绍了CO_(2)加氢制甲醇的反应网络及其热力学挑战,并概述了其工艺流程、国内外工业应用情况,系统综述了近年来不同活性组分催化剂的研究进... 详细信息

热催化CO_(2)加氢制甲醇具有显著的减碳效应,能够有效储存可再生能源,具有广阔的工业应用前景。介绍了CO_(2)加氢制甲醇的反应网络及其热力学挑战,并概述了其工艺流程、国内外工业应用情况,系统综述了近年来不同活性组分催化剂的研究进展,从催化剂的制备方式、活性位点、反应机理及动力学等方面阐述Cu基催化剂、贵金属催化剂、氧化物催化剂以及其他新型催化剂存在的问题和优势。重点阐述Cu基催化剂的构效关系,包括其活性组分结构、载体性质和助剂对催化活性和甲醇选择性的影响,并展望CO_(2)加氢制甲醇催化剂的未来发展方向。

关键词： CO_(2) 加氢甲醇催化剂反应机理反应动力学

Financial Resources Allocation and Its economic Impact in Belt and Road Countries

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Social Sciences in China 2022年第2期43卷 125-143页

作者： li Xin Tao Ran Zhou lü 邵亚楠 School of Finance Capital University of Economics and Business the School of Foreign languages at Tianjin Chengjian University

The purpose of this paper is to explore a model of efficient allocation of financial resources in China and other Belt and Road countries to ensure it plays the most effective economic *** terms of financial resources,this paper uses a fixed effects model to conduct an empirical study of 2006-2019 panel data on the financial resources of Belt and Road *** paper finds that the role of financial resources varies from country to country along the Belt and Road.1) In some regions,increased bank credit is playing a less important role in driving the economy;2) Securities markets have an important role in promoting economic growth;3) The insurance industry has great potential for economic development;4) Foreign direct investment has boosted economic *** we need to face up to the fact that the role of financial resources in economic growth varies from country to country along the Belt and Road,so we need to formulate the corresponding strategies to optimize financial resources and promote the sustainable development of Belt and Road economies.

关键词： financial resources Belt and Road Initiative economic growth panel data

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静悄悄的肺部阴影

中华结核和呼吸杂志 2024年第5期47卷 444-449页

作者：孙忻李玉红高莉胡晓文张婷许文兵彭敏施举红冯瑞娥中国医学科学院北京协和医学院北京协和医院呼吸与危重症医学科北京100730 青海大学附属医院呼吸与危重症医学科西宁810012 北京大学第一医院医学影像科北京100034 中国科学技术大学附属第一医院呼吸与危重症医学科合肥230001 中国医学科学院北京协和医学院北京协和医院病理科北京100730

本文报道1例老年女性患者,主因“体检发现肺部阴影1年,咳嗽咳痰2个月”就诊。患者胸部CT提示双肺实变及磨玻璃影,纵隔窗可见实变内部低密度影,既往因鼻咽癌放疗及长期薄荷油滴鼻病史为诊断提供重要线索,通过肺穿刺活检病理及支气管镜肺... 详细信息

本文报道1例老年女性患者,主因“体检发现肺部阴影1年,咳嗽咳痰2个月”就诊。患者胸部CT提示双肺实变及磨玻璃影,纵隔窗可见实变内部低密度影,既往因鼻咽癌放疗及长期薄荷油滴鼻病史为诊断提供重要线索,通过肺穿刺活检病理及支气管镜肺泡灌洗证实为外源性脂质性肺炎,停用滴鼻油后症状好转。本患者的诊治过程提醒临床医生应重视对误吸危险因素的识别和管理,提高对误吸相关肺部综合征的认识。

关键词：肺炎,脂质性活组织检查肺支气管肺泡灌洗液肺炎,吸入性

Microstructures and Hardness Properties for β-Phase Ti-24Nb-4Zr-7.9Sn Alloy Fabricated by electron Beam melting

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Journal of Materials Science & Technology 2013年第11期29卷 1011-1017页

作者： J.Hernandez S.J.li e.Martinez l.e.Murr X.M.Pan K.N.Amato X.Y.Cheng F.Yang C.A.Terrazas S.M.Gaytan Y.l.Hao R.Yang F.medina R.B.Wicker Department of metallurgical and Materials engineering The University of Texas at El Paso Shenyang National laboratory for Materials Science Institute of Metal ResearchChinese Academy of Sciences School of Materials Science and engineering Dalian University of Technology W.M.Keck Center for 3D Innovation The University of Texas at E1 Paso

Atomized, pre-alloyed Ti-24Nb-4Zr-7.9Sn （wt%） powder was used to fabricate solid, prototype components by electron beam melting （eBM）. Vickers microindentation hardness values were observed to average 2 GPa for the precursor powder and 2.5 GPa for the solid, eBM-fabricated products. The powder and solid product microstructures were examined by optical and electron microscopy. X-ray diffraction analyses showed that they had bcc β-phase microstructure. However, it was found by transmission electron microscopy that the eBM-fabricated product had plate morphology with space -100-200 nm. Although the corresponding selected area diffraction patterns can be indexed by β-phase plus α＂-martensite with orthorhombic crystal structure, the dark-field analyses failed to observe the α＂-martensite. Such phenomenon was also found in deformed gum metals and explained by stress-induced diffusion scattering due to phonon softening.

关键词： Biomedical titanium alloy β-Martensite electron beam melting Hardness Optical and electron microscopy