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1.6-μm single-frequency erbium-doped fiber laser based on two cascaded subrings

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Chinese Optics Letters 2024年第4期22卷 77-82页

作者：翟雅琦文瀚陈浩伟陆宝乐白晋涛 State Key Laboratory of Energy Photon-Technology in Western China International Collaborative Center on Photoelectric Technology and Nano Functional MaterialsInstitute of Photonics&Photon-TechnologyNorthwest UniversityXi’an 710127China Shaanxi Engineering Technology Research Center for Solid State Lasers and Application Shaanxi Provincial Key Laboratory of Photo-electronic TechnologyNorthwest UniversityXi’an 710127China

We demonstrate a stable narrow linewidth single-frequency erbium-doped fiber laser(EDFL)operating at 1.6μm.A Fabry–Perot fiber Bragg grating and two cascaded subrings are incorporated in the main ring cavity to achieve singlefrequency *** experimentally measured optical signal-to-noise ratio is greater than 73 ***,the linewidth of the EDFL is measured to be about 480 Hz by the self-built short-delayed self-heterodyne interferometry *** laser shows superior stability,with no mode-hopping during the 60-min observation *** proposed EDFL provides a new experimental idea for realizing a single-frequency fiber laser in the L-band.

关键词： erbium-doped fiber laser two cascaded subrings single frequency

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基于感官评价和代谢组学分析叶用枸杞茶

食品科学 2024年第7期45卷 191-201页

作者：卢丽周承哲徐凯张孟聪温圣菁段淋渊田采云石碧滢张波郭玉琼福建农林大学园艺学院福建福州350002 宁夏农林科学院枸杞科学研究所宁夏银川750002 福建农林大学安溪茶学院(数字经济学院) 福建泉州362400

以26个品种(系)叶用枸杞芽叶干样及鲜叶为材料,采用感官评价和代谢组学技术并结合多元统计分析对其感官品质和代谢物进行分析。感官评价结果表明,叶用枸杞芽叶干样滋味醇厚、鲜爽、有甜味;液相色谱-质谱联用结果显示,叶用枸杞芽叶中共... 详细信息

以26个品种(系)叶用枸杞芽叶干样及鲜叶为材料,采用感官评价和代谢组学技术并结合多元统计分析对其感官品质和代谢物进行分析。感官评价结果表明,叶用枸杞芽叶干样滋味醇厚、鲜爽、有甜味;液相色谱-质谱联用结果显示,叶用枸杞芽叶中共鉴定出879种代谢物,包括氨基酸及其衍生物、黄酮类、酚酸类、糖类、核苷酸及其衍生物、木脂素和香豆素、生物碱、萜类、有机酸、脂质10类。根据偏最小二乘判别分析模型及单因素方差分析筛选出211种差异代谢物,主要富集在亚油酸代谢、类黄酮生物合成、黄酮和黄酮醇生物合成、苯丙醇生物合成、半乳糖代谢等代谢通路,此外还发现,氨基酸及其衍生物、黄酮、糖类和脂类是区分不同品种(系)叶用枸杞芽代谢物的重要组分。偏最小二乘回归(partial least squares regression,PLSR)分析表明,表儿茶素、异槲皮素、芦丁等26种代谢物共同影响叶用枸杞茶醇、厚、鲜、甜和苦等滋味。感官评价结合PLSR分析结果表明,‘宁杞菜1号’‘宁杞9号’、Z90、Z68、Q3、Q6-13和Z487种叶用枸杞具有感官品质较好且滋味物质丰富的特点。

关键词：叶用枸杞茶感官评价代谢组学滋味差异代谢物多元统计分析

Functional dissection of parabrachial substrates in processing nociceptive information

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Zoological Research 2024年第3期45卷 633-647页

作者： Jin Ke Wei-Cheng lu Hai-Yang Jing Shen Qian Sun-Wook Moon Guang-Fu Cui Wei-Xin Qian Xiao-Jing Che Qian Zhang Shi-Shi Lai Ling Zhang Ying-Jie Zhu Jing-Dun Xie Tian-Wen Huang Shenzhen Key Laboratory of Drug Addiction Shenzhen-Hong Kong Institute of Brain ScienceBrain Cognition and Brain Disease InstituteShenzhen Institute of Advanced TechnologyChinese Academy of SciencesShenzhenGuangdong 518055China CAS Key Laboratory of Brain Connectome and Manipulation Brain Cognition and Brain Disease InstituteShenzhen Institute of Advanced TechnologyChinese Academy of SciencesShenzhenGuangdong 518055China University of Chinese Academy of Sciences Beijing 100049China Department of Anesthesiology State Key Laboratory of Oncology in South ChinaGuangdong Provincial Clinical Research Center for CancerSun Yat-sen University Cancer CenterGuangzhouGuangdong 510060China University of Science and Technology of China HefeiAnhui 230027China Department of Anesthesiology Shenzhen University General Hospital and Shenzhen University Academy of Clinical Medical SciencesShenzhen UniversityShenzhenGuangdong 518055China School of Medicine Yunnan UniversityKunmingYunnan 650091China

Painful stimuli elicit first-line reflexive defensive reactions and,in many cases,also evoke second-line recuperative behaviors,the latter of which reflects the sensing of tissue damage and the alleviation of *** lateral parabrachial nucleus(lPBN),composed of external-(elPBN),dorsal-(dlPBN),and central/superior-subnuclei(jointly referred to as slPBN),receives sensory inputs from spinal projection neurons and plays important roles in processing affective information from external threats and body integrity ***,the organizational rules of lPBN neurons that provoke diverse behaviors in response to different painful stimuli from cutaneous and deep tissues remain *** this study,we used region-specific neuronal depletion or silencing approaches combined with a battery of behavioral assays to show that slPBN neurons expressing substance P receptor(NK1R)(lPBNNK1R)are crucial for driving pain-associated self-care behaviors evoked by sustained noxious thermal and mechanical stimuli applied to skin or bone/muscle,while elPBN neurons are dispensable for driving such ***,lPBNNK1R neurons are specifically required for forming sustained somatic pain-induced negative teaching signals and aversive memory but are not necessary for fear-learning or escape behaviors elicited by external ***,both lPBNNK1R and elPBN neurons contribute to chemical irritant-induced nocifensive *** results reveal the functional organization of parabrachial substrates that drive distinct behavioral outcomes in response to sustained pain versus external danger under physiological conditions.

关键词： Lateral parabrachial nucleus Substance P receptor Pain affect Defensive reaction Somatosensory

Silicon-based Fano resonance devices based on photonic crystal nanobeams

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Optoelectronics Letters 2023年第12期19卷 727-731页

作者： WANG Yihao lu Wenda LAI Xiaohan dong Mingli lu Lidan ZHU Lianqing Beijing Information Science and Technology University Beijing 100192China State Grid Zhejiang Electric Power Corporation Information&Telecommunication Branch Hangzhou 310007China

To address the driving power and density of wavelength-division-multiplexing(WDM)computing architectures,a Fano resonator based on a photonic crystal nanobeam is *** Fano resonator comprises a T-shaped waveguide,introducing an additional phase shift in the continuous propagation mode,and a photonic crystal nanobeam with a discrete *** device has one resonance peak within wavelength ranging from 1500 nm to 1600 nm,with a maximum extinction ratio of 8.7 dB and a transmission spectrum slope of up to 11.30 dB/*** device has good reusability,extinction ratio,and spectral *** is expected to provide essential photonic components for low-energy consumption and high-density photonic computing to meet the requirements of future convolutional neural network(CNN)acceleration computing.

关键词： resonator Fano waveguide

基于Pinnacle脚本构建宫颈癌调强放疗自动计划的研究

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中华放射医学与防护杂志 2024年第8期44卷 650-656页

作者：吴先想蔡汉飞曹露李威徐露葛文洁费振乐蚌埠医科大学第一附属医院放疗科蚌埠233004 解放军第901医院放疗科合肥230031

目的探讨基于Pinnacle脚本构建宫颈癌调强放疗(IMRT)自动计划的可行性及其在宫颈癌计划设计中的优势。方法回顾性选取2020年1月至2022年8月于蚌埠医科大学第一附属医院放疗科接受宫颈癌IMRT病例共40例,其中25例作为目标函数初始化参考数... 详细信息

目的探讨基于Pinnacle脚本构建宫颈癌调强放疗(IMRT)自动计划的可行性及其在宫颈癌计划设计中的优势。方法回顾性选取2020年1月至2022年8月于蚌埠医科大学第一附属医院放疗科接受宫颈癌IMRT病例共40例,其中25例作为目标函数初始化参考数据,在Pinnacle计划系统中设计自动计划脚本。对剩余15例病例分别进行自动计划与人工IMRT计划设计,比较两种计划设计用时,并通过剂量体积直方图对比靶区剂量学参数及危及器官受照剂量的差异。结果自动计划组比人工计划组设计用时平均减少32.81 min,差异有统计学意义(t=-12.91,P0.05)。与人工计划组相比,自动计划组中双侧股骨头的V45和Dmean分别降低了7.9%、106.83 cGy,脊髓Dmax降低了100.14 cGy,差异均有统计学意义(t=-6.00、-2.52、-2.55,P<0.05)。结论基于Pinnacle脚本构建的宫颈癌调强放疗自动计划,在保证靶区剂量均匀性和适形度的同时,降低了危及器官受照射量,同时提高了计划设计效率。

关键词：宫颈癌自动计划设计调强放射治疗剂量学

Effect of compressive stress on the dispersion relation of the flexural–gravity waves in a two-layer fluid with a uniform current

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Journal of Hydrodynamics 2014年第2期26卷 339-341页

作者：卢东强 Shanghai Institute of Applied Mathematics and Mechanics Shanghai University Shanghai Key Laboratory of Mechanics in Energy Engineering Shanghai University Computational Marine Mechanics Laboratory Department of Mechanical Engineering University of California

The explicitly analytical solution is derived for the dispersion relation of the flexural-gravity waves in a two-layer fluid with a uniform current. The upper＇ fluid is covered by a thin plate with the presence of the elastic, compressive and inertial forces. The density of each of the two immiscible layers is constant. The fluids of finite depth are assumed to be inviscid and incompressible and the motion be irrotational. A linear system is established within the framework of potential theory. A new representation for the dispersion relation of flexural-gravity waves in a two-layer fluid is derived. The critical value for the compressive force is analytically determined. The dispersion relation for the capillary-gravity with an inertial surface in a two-layer fluid can he obtained in parallel. Some known dispersion relations can be recovered from the present solution.

关键词： Hydroelasticity compressive force current two-layer fluid

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固体碳源用于污水深度脱氮的研究进展

中国给水排水 2024年第8期40卷 34-39页

作者：罗方周齐鲁中国人民大学环境学院低碳水环境技术研究中心北京100872

为控制严重的水体富营养化问题,满足日趋严格的污水排放标准,污水厂在利用生物反硝化技术进行深度脱氮时大多需要投加外碳源。常见的外碳源可分为液体碳源与固体碳源两类,其中固体碳源近年来引起了国内外的广泛关注。系统总结了固体碳... 详细信息

为控制严重的水体富营养化问题,满足日趋严格的污水排放标准,污水厂在利用生物反硝化技术进行深度脱氮时大多需要投加外碳源。常见的外碳源可分为液体碳源与固体碳源两类,其中固体碳源近年来引起了国内外的广泛关注。系统总结了固体碳源的物质类型,阐述了固相反硝化系统释碳与脱氮的相关原理,综述了近年来固体碳源在污水深度处理中的应用研究进展,并基于上述内容提出了对固体碳源未来研究的展望。相较于液体碳源,固体碳源既是反硝化过程持续的电子供体,又可作为生物膜生长的载体,相关工艺简单易于控制,脱氮效果稳定,为未来污水深度处理技术的发展提供了一条新思路。

关键词：固体碳源固相反硝化生物脱氮污水深度处理

Co-Exposure to Multiple Pollutants and Its Cardiovascular Effects in a Subway System-Beijing Municipality,China,2017

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China CDC weekly 2021年第45期3卷 959-963页

作者： Wenlou Zhang Xuan Yang Xu Jia Wei dong Hongyu Li lu Pan Jiao Shan Shaowei Wu Xinbiao guo Furong Deng Department of Occupational and Environmental Health Sciences School of Public HealthPeking UniversityBeijingChina Qingdao Municipal Center for Disease Control and Prevention Qingdao Institute of Preventive MedicineQingdaoShandongChina Department of Occupational and Environmental Health Sciences School of Public HealthXi'an Jiaotong University Health Science CenterXi'anShaanxiChina

Summary What is already known on this topic?With rapid urbanization,traffic-related air pollution has become a global ***,its association with cardiovascular health has not been fully *** is added by this report?This study provided novel evidence of the joint cardiovascular effect of multiple pollutants in subway cabins,further identified two pollutants that played dominant roles,and validated the effectiveness of targeted interventions.

关键词： pollution urbanization traffic

维普期刊数据库评论

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移动健康在老年人孤独感中应用的范围综述

中国护理管理 2024年第1期24卷 78-83页

作者：周飞洋邓露龙柯宇郭春波谢琳琳杨婷婷吕倩中南大学湘雅二医院临床护理教研室长沙市410011 中南大学湘雅护理学院湘雅循证实践与健康创新中心 JBI协作组

目的 :对移动健康在老年人孤独感中的应用进行范围审查,探究移动健康的载体、内容及效果,为开展老年人孤独感的干预提供参考。方法 :以乔安娜布里格斯研究所(JBI)发布的范围综述指南为方法学框架,系统检索PubMed、Embase、CINAHL、Webof... 详细信息

目的 :对移动健康在老年人孤独感中的应用进行范围审查,探究移动健康的载体、内容及效果,为开展老年人孤独感的干预提供参考。方法 :以乔安娜布里格斯研究所(JBI)发布的范围综述指南为方法学框架,系统检索PubMed、Embase、CINAHL、WebofScience、TheCochraneLibrary、中国知网、万方数据库和中国生物医学数据库。检索时限为建库至2023年2月5日。由2名研究人员独立筛选并提取资料。结果 :共纳入18篇文献,移动健康在老年人孤独感中应用内容包括提供健康指导、改善社会支持、远程心理干预,学习操作移动设备。结局指标包括有效性和可行性。结论:移动健康在改善老年人孤独感中的应用是可行的,具有积极作用。未来可以借鉴和参考国外高质量研究,依托多学科合作,开发符合国内文化背景的移动健康平台,以改善老年人的孤独感。

关键词：移动健康老年孤独感社会隔离范围综述