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Reducing the mode-mismatch noises in atom–light interactions via optimization of the temporal waveform

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Photonics Research 2020年第11期8卷 1697-1702页

作者： Xiaotian Feng zhifei Yu Bing Chen Shuying Chen Yuan Wu Donghui Fan Chun-Hua Yuan L.Q.Chen z.Y.ou Weiping zhang State Key Laboratory of Precision Spectroscopy Quantum Institute for Light and AtomsDepartment of PhysicsEast China Normal UniversityShanghai 200062China School of Electronic Science and Applied Physics Hefei University of TechnologyHefei 230009China Department of Physics Indiana University-Purdue University IndianapolisIndianapolisIndiana 46202USA School of Physics and Astronomy and Tsung-Dao Lee InstituteShanghai Jiao Tong UniversityShanghai 200240China

Atom–light interface is at the core of quantum metrology and quantum information *** noises during interaction processes are always inevitable and *** this paper,we perform the stimulated Raman scattering(SRS)in a hot Rb 87 vapor cell and demonstrate the reduction of related noises originated from mode mismatch via optimizing the temporal waveform of the input *** using the seed with the optimized mode,the intensity fluctuation of the signal field generated in atom–light interaction is decreased by 4.3 ***,the fluctuation of the intensity difference between the signal and atomic spin wave is reduced by 3.1 *** a temporal mode-cleaning method can be applied to improve the precision of atom interferometry using SRS and should be helpful for quantum information processing based on an atom–light correlated system.

关键词： quantum optimization interferometry

Dawn of complex animal food webs:A new predatory anthozoan(Cnidaria)from Cambrian

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The Innovation 2022年第1期3卷 83-90页

作者： Qiang ou Degan Shu zhifei zhang Jian Han Heyo Van Iten Meirong Cheng Jie Sun Xiaoyong Yao Rong Wang Georg Mayer Early Life Evolution Laboratory State Key Laboratory of Biogeology and Environmental GeologyChina University of GeosciencesBeijing 100083China Department of zoology University of KasselKassel 34132Germany Shaanxi Key Laboratory of Early Life and Environment State Key Laboratory of Continental DynamicsDepartment of GeologyNorthwest UniversityXi’an 710069China Department of Geology Hanover CollegeHanoverIN 47243USA Cincinnati Museum Center Department of Invertebrate Paleontology1301 Western AvenueCincinnatiOH 45203USA School of Earth Science and Resources Chang’an UniversityXi’an 710054China

Cnidarians diverged very early in animal evolution;therefore,investigations of the morphology and trophic levels of early fossil cnidarians may provide critical insights into the evolution of metazoans and the origin of modern marine food ***,there has been a lack of unambiguous anthozoan cnidarians from Ediacaran assemblages,and undoubted anthozoans from the Cambrian radiation of metazoans are very rare and lacking in ecological ***,we report a new polypoid cnidarian,Nailiana elegans *** ***.,represented by multiple solitary specimens from the early Cambrian Chengjiang biota(-520 Ma)of South *** specimens show eight unbranched tentacles surrounding a single opening into the gastric cavity,which may have born multiple ***,*** displays a level of organization similar to that of extant *** analyses place *** in the stem lineage of Anthozoa and suggest that the ancestral anthozoan was a soft-bodied,solitary polyp showing octoradial ***,one specimen of the new polyp preserves evidence of predation on an epifaunal lingulid *** case provides the oldest direct evidence of macrophagous predation,the advent of which may have triggered the emergence of complex trophic/ecological relationships in Cambrian marine communities and spurred the explosive radiation of animal body plans.

关键词： China Cambrian solitary

寄生虫感染相关嗜酸粒细胞增多相关性肺疾病的临床特征分析

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国际呼吸杂志 2024年第2期44卷 184-191页

作者：袁丁马宇雯戴妹薛玲娜欧昌星廖永康张清玲呼吸疾病全国重点实验室/国家呼吸系统疾病临床医学研究中心/国家呼吸医学中心呼吸与危重症医学科广州呼吸健康研究院/广州医科大学附属第一医院/广州医科大学广州510120

目的分析寄生虫感染相关嗜酸粒细胞增多相关性肺疾病(EPD)的临床特征。方法横断面研究,采用目的抽样法收集2021年5月至2022年12月在广州医科大学附属第一医院诊断为寄生虫感染EPD患者25例的资料,根据国家寄生虫病卫生行业标准将其分为... 详细信息

目的分析寄生虫感染相关嗜酸粒细胞增多相关性肺疾病(EPD)的临床特征。方法横断面研究,采用目的抽样法收集2021年5月至2022年12月在广州医科大学附属第一医院诊断为寄生虫感染EPD患者25例的资料,根据国家寄生虫病卫生行业标准将其分为临床诊断组17例和确诊组8例,比较2组患者的流行病学史、人口学特征、临床表现及相关检查指标,随访患者驱虫治疗的效果。结果临床诊断组外周血嗜酸性粒细胞(EOS)显著高于确诊组,EOS重度升高的患者比例也更高(P=0.026)。2组患者肺影像学主要改变为磨玻璃样、结节样、间质增厚。2组患者接受驱虫治疗后症状均好转,17例患者驱虫治疗后复查血EOS较治疗前下降(z=3.20,P=0.006),其中的8例患者在治疗后第1个月即可看到血EOS的显著下降(z=2.52,P=0.012)。结论寄生虫感染相关EPD可以表现为外周血EOS重度升高,其病原学检出率不高,流行病学史的采集对于疾病诊断十分重要。对于有寄生虫病流行病学史、寄生虫抗体阳性、无肺外器官受累的EPD患者,诊断性驱虫治疗可以提高预后。

关键词：肺疾病,寄生虫性嗜酸性粒细胞增多诊断性治疗流行病学

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CGE模型在低碳交通政策领域的应用及前景

清华大学学报（自然科学版） 2023年第11期63卷 1693-1706页

作者：王妍欧国立北京交通大学经济管理学院北京100044 中国铁路经济规划研究院有限公司经济与管理研究所北京100038

气候变化问题十分复杂,涉及环境、经济和社会等诸多层面因素,交通排放是影响气候变化的重要因素。该文聚焦可计算一般均衡(computable general equilibrium,CGE)模型在交通政策研究中的应用,共采集涵盖科学引文数据库、科学指南、中国... 详细信息

气候变化问题十分复杂,涉及环境、经济和社会等诸多层面因素,交通排放是影响气候变化的重要因素。该文聚焦可计算一般均衡(computable general equilibrium,CGE)模型在交通政策研究中的应用,共采集涵盖科学引文数据库、科学指南、中国知网等主要数据库的78篇实证研究文献,其中超过50%的文献关注了低碳交通政策的影响。通过梳理文献发现:目前低碳交通政策评估领域的CGE模型实证研究尚处于起步阶段,未来低碳交通CGE模型建模可从政策研究、模型构建和协同效益3个方面进行深入研究。该文提出了将“避免型/转换型/改善型-规划/制度/经济/信息/技术(avoid/shift/improve-planning/regulatory/economic/information/technological,ASI-PREIT)”结构的低碳交通政策矩阵纳入可达性因素的空间可计算一般均衡(spatial computable general equilibrium,SCGE)模型的建模思路,并进行了协同环境-经济-社会效益的低碳交通广义协同效益研究,为拓展低碳交通问题的研究提供参考思路。

关键词：可计算一般均衡模型低碳交通政策矩阵可达性协同效益

Edge induced band bending in van der Waals heterojunctions:A first principle study

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Nano Research 2020年第3期13卷 701-708页

作者： Yang ou zhuo Kang Qingliang Liao zheng zhang Yue zhang Beijing Advanced Innovation Center for Materials Genome Engineering Beijing Key Laboratory for Advanced Energy Materials and TechnologiesUniversity of Science and Technology BeijingBeijing 100083China State Key Laboratory for Advanced Metals and Materials School of Materials Science and EngineeringUniversity cf Science and Technology BeijingBeijing 100083China

The dangling bond free nature of two-dimensional(2D)material surface/interface makes van der Waals(vdW)heterostructure attractive for novel electronic and optoelectronic *** in practice,edge is unavoidable and could cause band bending at 2D material edge analog to surface/interface band bending in conventional three-dimensional(3D)***,we report a first principle simulation on edge band bending of free standing MoS2/WS2 vdW *** to the imbalance charges at edge,S terminated edge causes upward band bending while Mo/W terminated induces downward bending in undoped *** edge band bending is comparable to band gap and could obviously harm electronic and optoelectronic *** also investigate the edge band bending of electrostatic doped heterojunction.N doping raises the edge band whereas p doping causes a decline of edge *** n doping even reverses the downward edge band bending at Mo/W terminated *** contrast,heavy p doping doesn’t invert the upward bending to *** with former experiments,the expected band gap narrowing introduced by interlayer potential gradient at edge is not observed in our free-standing structures and suggests substrate’s important role in this imbalance charge induced phenomenon.

关键词： edge band bending imbalance charge electrostatic doping transition metal dichalcogenides(TMDCs)van der Waals(vdW)heterojunction first principle

布洛芬超前镇痛对下颌阻生第三磨牙拔除术后疼痛影响的随机对照试验

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中华口腔医学杂志 2024年第3期59卷 230-236页

作者：魏雪竺郜康张婧赵彬刘之光吴瑞卿欧明明张琪李威程茜谢亦林张天翼李雅杰王昊王左敏张伟周建首都医科大学口腔医学院急诊综合诊疗中心北京100050 首都医科大学口腔医学院特诊特需科北京100050 首都医科大学口腔医学院口腔颌面外科北京100050 中国医学科学院北京协和医学院北京协和医院药剂科北京100730 首都医科大学附属北京安贞医院药理基地统计部北京100011 首都医科大学附属北京天坛医院口腔科北京100070 首都医科大学附属北京朝阳医院口腔科北京100020 北京大学口腔医学院·口腔医院口腔颌面外科、国家口腔医学中心、国家口腔疾病临床医学研究中心、口腔生物材料和数字诊疗装备国家工程研究中心、口腔数字医学北京市重点实验室北京100081

目的评价布洛芬超前镇痛对国人下颌阻生第三磨牙拔除术后疼痛的影响,以期为其临床应用提供参考。方法采用多中心、随机、双盲、安慰剂平行对照的试验设计。纳入2022年4月至2023年10月于首都医科大学口腔医学院(40例)、首都医科大学附属... 详细信息

目的评价布洛芬超前镇痛对国人下颌阻生第三磨牙拔除术后疼痛的影响,以期为其临床应用提供参考。方法采用多中心、随机、双盲、安慰剂平行对照的试验设计。纳入2022年4月至2023年10月于首都医科大学口腔医学院(40例)、首都医科大学附属北京天坛医院(22例)及首都医科大学附属北京朝阳医院(20例)就诊的82例下颌阻生第三磨牙患者,布洛芬组与对照组各41例,分别于术前15 min口服300 mg布洛芬缓释胶囊和安慰剂。两组患者于术后3 d内均按计划服用布洛芬缓释胶囊。通过数字评定量表统计患者在拔牙术后30 min、4 h、6 h、8 h、24 h、48 h、72 h的疼痛评分,并记录术后4~6 d额外镇痛药使用量。结果82例患者均符合试验方案。试验过程中两组患者均未发生恶心、呕吐、过敏等不良事件。布洛芬组患者术后4、6、8 h的疼痛评分[2.0(1.0,4.0)、2.0(1.0,4.0)、2.0(1.0,4.0)分]均显著低于对照组[分别为4.0(3.0,5.0)、5.0(2.5,6.0)、5.00(2.0,6.0)分](z=-3.73,Pz=-3.38,Pz=-2.11,P=0.035)。两组患者术后30 min、24 h、48 h和72 h的疼痛评分差异均无统计学意义(P>0.05)。布洛芬组与对照组分别有26.8%(11/41)和56.1%(23/41)的患者于术后4~6 d额外服用镇痛药,布洛芬组患者术后额外用药量[0.0(0.0,1.0)粒]显著低于对照组[1.0(0.0,3.0)粒](z=-2.81,P=0.005)。结论术前15 min口服300 mg布洛芬缓释胶囊,并在术后连续用药3 d的疼痛管理方案可有效降低患者术后疼痛程度及镇痛药物使用总量。综合考量其有效性、安全性和经济性,推荐布洛芬作为围手术期疼痛管理的一线药物,提升患者诊疗的舒适性是切实可行的。

关键词：镇痛疼痛超前镇痛疼痛管理布洛芬磨牙,第三拔牙

Analytical solutions of citrate-phosphate coupled model of rice(Oryza sativa L.)roots

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International Journal of Biomathematics 2020年第7期13卷 93-107页

作者： Huiping zhang Sbuyue Wang zhonghui ou School of Mathematics and Finance Putian University PutianFujianP.R.China School of Mathematics and Information Fujian Normal University FuzhouFujianP.R.China School of Mathematics and Information Fujian Normal University FuzhouFujianP.R.China Fujian Key Laboratory of Mathematical Analysis and Applications(FJKLMAA)Fujian Normal University FuzhouFujianP.R.China

The citrate secreted by the rice(Oryza sativa L.)roots will promote the absorption of phosphate,and this process is described by the Kirk *** our work,the Kirk model is divided into citrate sub-model and phosphate *** the citrate sub-model,we obtain the analytical solution of citrate with the Laplace transform,inverse Laplace transform and convolution *** citrate solution is substituted into the phosphate sub-model,and the analytical solution of phosphate is obtained by the separation variable *** existence of the solutions can be proved by the comparison test,the Weierstrass M-test and the Abel discriminating method.

关键词： Reaction-diffusion equation separation variable method Laplace transform inverse Laplace transform analytical solutions

Optimization of performance of the KM2A full array using the Crab Nebula

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Chinese Physics C 2024年第6期48卷 169-178页

作者：曹臻 F.Aharonian 安琪阿西克古白云翔包逸炜 D.Bastieri 毕效军毕玉江蔡金庭曹晴曹文羽曹喆常进常劲帆陈尚明陈恩生陈亮陈林陈龙陈明君陈玛丽陈起辉陈素弘陈天禄陈阳程宁程耀东崔明阳崔树旺崔晓红崔昱东戴本忠代洪亮戴子高单增罗布 D.della Volpe 董绪强段凯凯樊军辉范一中方军方堃冯存峰封莉冯少辉丰晓婷冯有亮 S.Gabici 高博高川东高林青高启高卫高伟康葛茂茂耿利斯 G.Giacinti 龚光华苟全补顾旻皓郭福来郭晓磊郭义庆郭莹莹韩毅昂何会海贺昊宁何佳银何新波何钰 M.Heller 贺远强侯博文侯超侯贤胡红波胡铨胡世聪黄代绘黄天奇黄文俊黄性涛黄晓渊黄勇黄志成季筱璐贾焕玉贾康江琨姜晓巍姜泽军金敏康明铭柯通 D.Kuleshov.K.Kurinov 李兵兵李澄李骢李丹李飞李海波李会财李华阳李军李剑李捷李凯李文龙李文莲李秀荣李昕李一卓李哲黎卓梁恩维梁云峰林苏杰刘冰刘成刘栋刘虎刘海东刘佳刘江来刘金艳刘茂元柳若愚刘四明刘伟刘怡刘以农鲁睿罗晴吕洪魁马伯强马玲玲马欣华毛基荣闵振 W.Mitthumsiri 穆慧君南云程 A.Neronov 区子维庞彬宇 P.Pattarakijwanich 裴致远齐孟尧祁业情乔冰强秦家军 D.Ruffolo A.Sáiz D.Semikoz 邵澄宇邵琅 O.Shchegolev 盛祥东舒富文宋慧超 Yu.V.Stenkin V.Stepanov 苏扬孙秦宁孙晓娜孙志斌谭柏轩唐庆文唐泽波田文武王超王昌贝王广威王洪光王惠惠王建成汪凯王利苹王玲玉王培汉王冉王为王祥高王祥玉王阳王玉东王岩谨王忠海王仲翔王振王铮韦大明魏俊杰魏永健文韬吴超勇吴含荣武莎吴雪峰吴雨生席邵强夏捷夏君集项光漫肖迪泫肖刚辛广广辛玉良邢祎熊峥徐东莲徐仁峰徐仁新徐伟立薛良闫大海颜景志颜田杨朝文杨帆杨冯帆杨何文杨佳盈杨莉莉杨明洁杨睿智杨深邦姚玉华姚志国叶一锰尹丽巧尹娜游晓浩游智勇于艳红袁强岳华曾厚敦曾婷轩曾玮查敏张彬彬张丰张海明张恒英张建立张丽霞张力张鹏飞张佩佩张瑞张少博张少如张寿山张潇张笑鹏张云峰张毅张勇赵兵赵静赵雷赵立志赵世平郑福周斌周浩周佳能周猛周平周荣周勋秀祝成光祝凤荣朱辉朱科军左雄 LHAASO Collaboration Key Laboratory of Particle Astrophyics&Experimental Physics Division&Computing Center Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China University of Chinese Academy of Sciences Beijing 100049China Tianfu Cosmic Ray Research Center Chengdu 610000China Dublin Institute for Advanced Studies 31 Fitzwilliam Place2 DublinIreland Max-Planck-Institut for Nuclear Physics P.O.Box 10398069029 HeidelbergGermany State Key Laboratory of Particle Detection and Electronics China University of Science and Technology of China Hefei 230026China School of Physical Science and Technology&School of Information Science and Technology Southwest Jiaotong UniversityChengdu 610031China School of Astronomy and Space Science Nanjing UniversityNanjing 210023China Center for Astrophysics Guangzhou UniversityGuangzhou 510006China Hebei Normal University Shijiazhuang 050024China Key Laboratory of Dark Matter and Space Astronomy&Key Laboratory of Radio Astronomy Purple Mountain ObservatoryChinese Academy of SciencesNanjing 210023China Tsung-Dao Lee Institute&School of Physics and Astronomy Shanghai Jiao Tong UniversityShanghai 200240China Key Laboratory for Research in Galaxies and Cosmology Shanghai Astronomical ObservatoryChinese Academy of SciencesShanghai 200030China Key Laboratory of Cosmic Rays(Tibet University) Ministry of EducationLhasa 850000TibetChina National Astronomical Observatories Chinese Academy of SciencesBeijing 100101China School of Physics and Astronomy(zhuhai)&School of Physics(Guangz.ou)&Sino-French Institute of Nuclear Engineering and Technology(zhuhai) Sun Yat-sen UniversityZhuhai 519000&Guangzhou 510275China School of Physics and Astronomy Yunnan UniversityKunming 650091China Département de Physique Nucléaire et Corpusculaire Facultéde SciencesUniversitéde Genève24 Quai Ernest Ansermet1211 GenevaSwitzerland Institute of Frontier and Interdisciplinary Science Shandong UniversityQingdao 266237China APC Universit'e Paris Cit'eCNRS/IN2P3CEA/IRFUObservat

The full array of the Large High Altitude Air Shower Observatory(LHAASO)has been in operation since July *** its kilometer-square array(KM2A),we optimized the selection criteria for very high and ultrahigh energyγ-rays using data collected from August 2021 to August 2022,resulting in an improvement in significance of the detection in the Crab Nebula of approximately 15%,compared with that of previous *** the implementation of these new selection criteria,the angular resolution was also significantly improved by approximately 10%at tens of *** aspects of the full KM2A array performance,such as the pointing error,were also calibrated using the Crab *** resulting energy spectrum of the Crab Nebula in the energy range of 10-1000 TeV are well fitted by a log-parabola model,which is consistent with the previous results from LHAASO and other experiments.

关键词： γ-ray Crab Nebula significance

Synergistic-engineered van der Waals photodiodes with high efficiency

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InfoMat 2022年第3期4卷 85-97页

作者： Baishan Liu Xiankun zhang Junli Du Jiankun Xiao Huihui Yu Mengyu Hong Li Gao Yang ou zhuo Kang Qingliang Liao zheng zhang Yue zhang Academy for Advanced Interdisciplinary Science and Technology School of Materials Science and EngineeringUniversity of Science and Technology BeijingBeijingPeople's Republic of China Advanced Innovation Center for Materials Genome Engineering Beijing Key Laboratory for Advanced Energy Materials and TechnologiesUniversity of Science and Technology BeijingBeijingPeople's Republic of China

Van der Waals(vdW)heterostructures based on two-dimensional transitionmetal dichalcogenides have provided unprecedented opportunities for photovoltaic detectors owing to their strong light-matter interaction and ultrafast interfacial charge *** continued advancement,insufficient control of photocarrier behaviors still limits the external quantum efficiency(EQE)and operation speed of such ***,we propose a synergistic strategy of contact-configuration design and thickness-modulation to construct high-performance vdW photodiodes based on the typical type II heterostructure(MoS2/WSe2).Through integrating three contact architectures into one device to exclude other factors,we solid the superiority of designed 1L-MoS2/WSe2/graphene heterostructures incorporating efficient photocarrier collection and gate *** with leveraging the layer-numberdependent properties of WSe2,we observe the critical thickness of WSe2(11 layers)for the highest EQE,which verifies the thickness-dependent competition between photocarrier generation,dissociation,and ***,we demonstrate the synergistic-engineered vdW heterostructure can trigger record-high EQE(61%)and manifest ultrafast photoresponse(4.1μs)at the atomically thin limit(8 nm).The proposed strategy enables architecture-design and thickness-engineering to unlock the potential to realize high-performance optoelectronic devices.

关键词： configuration-design photocarrier behaviors photovoltaic photodetectors thicknessmodulation van der Waals heterostructures