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Numerical calculation of multiple scattering with the layer model

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Particuology 2009年第1期7卷 76-82页

作者： yuehuan wei jianqi shen haitao yu University of Shanghai for Science and Technology Shanghai 200093 China

The optical measurement technique based on Mie scattering has been applied to various areas, in which single scattering at low particle concentration is assumed. Nevertheless, since multiple scattering is usually unavoidable in online measurements, we present in this work a multiple scattering calculation method, in which a layer model is employed. The three-dimensional particle system is divided into a pile of layers the number of which is automatically determined, depending on the obscuration of the particle system. The calculation is found to be fast, reasonable and reliable.

关键词： Multiple scattering Layer model Mie theory Forward scattering Particle analysis

激光自混合干涉法亚微米及纳米颗粒测量中的反问题

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光学学报 2008年第12期28卷 2335-2343页

作者：王华睿沈建琪于海涛魏月环上海理工大学上海200093 徐州师范大学江苏徐州221116

基于Kaczmarz投影算法对反问题进行了详细的研究。选取颗粒线分布函数作为反演对象,改进了Kaczmarz投影算法,使投影过程发生在较大夹角的超平面之间。数值模拟了含5%和10%的测量误差时宽单峰、窄单峰、双峰和三峰四种粒径分布的反演,结... 详细信息

基于Kaczmarz投影算法对反问题进行了详细的研究。选取颗粒线分布函数作为反演对象,改进了Kaczmarz投影算法,使投影过程发生在较大夹角的超平面之间。数值模拟了含5%和10%的测量误差时宽单峰、窄单峰、双峰和三峰四种粒径分布的反演,结果显示改进投影算法得出的粒径分布与输入的粒径分布更好得吻合。实验测量了标称为60nm和180nm两种单分散颗粒,结果表明改进投影算法得出的粒径分别为54.95nm和190.55nm,而原先投影算法得出的粒径为83.18nm和288.40nm,进一步显示改进投影算法提高了测量结果的准确性。

关键词：光学测量激光自混合干涉技术颗粒粒径反问题投影算法

Responses of incubating females to female cuckoo calls in 2 hole-nesting bird species

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Current Zoology 2021年第5期67卷 565-567页

作者： Chao shen Jiangping yu Xudong LI Jing yuE haitao WANG wei LIANG Jilin Engineering Laboratory for Avian Ecology and Conservation Genetics School of Life SciencesNortheast Normal UniversityChangchun130024China Jilin Provincial Key Laboratory of Animal Resource Conservation and Utilization School of Life SciencesNortheast Normal UniversityChangchun130024China Ministry of Education Key Laboratory of Vegetation Ecology School of Life SciencesNortheast Normal UniversityChangchun130024China Ministry of Education Key Laboratory for Ecology of Tropical Islands Key Laboratory of Tropical Animal and Plant Ecology of Hainan ProvinceCollege of Life SciencesHainan Normal UniversityHaikou571158China

Acoustic signals play an important role in animal communication systems,and these signals can transfer diverse and meaningful information from a signaler to a receiver(e.g.,yu et al.2019).Animal signals tend to be honest;however,deception can occur when it is beneficial for receivers to send dishonest signals,such as by mimicking alarm calls to steal food from other individuals(Flower et al.2014).In birds,vocal mimicry is a widespread phenomenon that has 2 major functional explanation categories:intraspecific and interspecific communications(Dalziell et al.2015).Vocal mimicry in intraspecific communication mainly involves sexual selection and social affiliation(Dalziell et al.2015).In interspecific communication,studies on vocal mimicry are mostly related to predator–prey interactions(Dalziell et al.2015).Mimics could mimic calls of predators to scare off other predators or *** example,some species of hole-nesting birds produce a snakelike hissing call to drive nest predators away(e.g.,Dutour et al.2020).Receiver should be particularly sensitive to the deceptive vocals of mimics if failing to respond to an actual model sound is ***,the mimics could derive an advantage from mimicking the calls of predators of the receivers.A recent experimental study suggested that the bubbling calls of female common cuckoo Cuculus canorus mimic those of Eurasian sparrowhawk Accipiter nisus,and they primarily serve to distract regular hosts after laying eggs(York and Davies 2017).However,Xia et al.(2019)found that female cuckoo calls have other functions,including attracting mates and repelling rivals.

关键词： antipredator behavior cinereous tit "sparrowhawk-like"mimicry vocal mimicry yellow-rumped flycatcher

Geographical variation in nest defense among cinereous tit populations in China

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Current Zoology 2023年第1期69卷 59-65页

作者： Chao shen Dake Yin Jiangping yu Li Zhang Zheng Han Longru Jin wei Liang haitao Wang Jilin Engineering Laboratory for Avian Ecology and Conservation Genetics School of Life SciencesNortheast Normal UniversityChangchun 130024China Jilin Provincial Key Laboratory of Animal Resource Conservation and Utilization School of Life SciencesNortheast Normal UniversityChangchun 130024China Ministry of Education Key Laboratory of Vegetation Ecology School of Life SciencesNortheast Normal UniversityChangchun 130024China Ministry of Education Key Laboratory for Ecology of Tropical Islands College of Life SciencesHainan Normal UniversityHaikou 571158China

Behavioral divergence among populations is common across taxonomic groups,still we know very little about anti-predator *** exposure to predation risk is variable in different ecological *** addition,reproduction value of animals in different geographical regions usually *** this study,we tested whether cinereous tits Parus cinereus in different populations exhibited nest defense behaviors similar to those of nest or adult predators and whether their nest defense behaviors showed geographical *** using field dummy experiments,we observed tits’nest defense behavior in nest predator common chipmunk Tamias sibiricus and red squirrel Sciurus vulgaris,adult predator Eurasian sparrowhawk Accipiter nisus and nonthreatening species Oriental turtle dove Streptopelia orientalis in the ZJ(44°N),DZ(31°N),and DLS(18°N)populations,*** response scores varied significantly across the 4 dummies in ZJ-tits and DLS-tits but did not in *** facing the chipmunk,ZJ-tits showed the highest response score and DZ-tits showed the lowest response *** facing the squirrel,ZJ-tits showed a higher response score than tits in the other 2 ***,tits among the 3 populations responded similarly to a sparrowhawk or dove with slight response *** addition,response scores to nest predators were positively correlated with brood size across the 3 populations,but no trend was found for sparrowhawks or *** results indicated that the nest defense behaviors of cinereous tits have evolved in response to large-scale geographical variation in ecological contexts and reproduction value.

关键词： cinereous tit geographical variation nest defense behavior nest predation

Measurement of solar pp neutrino flux using electron recoil data from PandaX-4T commissioning run

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Chinese Physics C 2024年第9期48卷 1-7,300页

作者： Xiaoying Lu Abdusalam Abdukerim Zihao Bo wei Chen Xun Chen yunhua Chen Chen Cheng Zhaokan Cheng Xiangyi Cui Yingjie Fan Deqing Fang Lisheng Geng Karl Giboni Xuyuan Guo Chencheng Han Ke Han Changda He Jinrong He Di Huang Junting Huang Zhou Huang Ruquan Hou yu Hou Xiangdong Ji Yonglin Ju Chenxiang Li Jiafu Li Mingchuan Li Shuaijie Li Tao Li Qing Lin Jianglai Liu Congcong Lu Lingyin Luo yunyang Luo Wenbo Ma yugang Ma Yajun Mao yue Meng Xuyang Ning Binyu Pang Ningchun Qi Zhicheng Qian Xiangxiang Ren Nasir Shaheed Xiaofeng Shang Xiyuan Shao Guofang shen Manbin shen Lin Si Wenliang Sun Yi Tao Anqing Wang Meng Wang Qiuhong Wang Shaobo Wang Siguang Wang wei Wang Xiuli Wang Xu Wang Zhou Wang yuehuan wei Mengmeng Wu weihao Wu yuan Wu Mengjiao Xiao Xiang Xiao Kaizhi Xiong Binbin Yan Xiyu Yan Yong Yang Chunxu yu Ying yuan Zhe yuan Youhui yun Xinning Zeng Minzhen Zhang Peng Zhang Shibo Zhang Shu Zhang Tao Zhang wei Zhang Yang Zhang Yingxin Zhang yuanyuan Zhang Li Zhao Jifang Zhou Ning Zhou Xiaopeng Zhou yubo Zhou Zhizhen Zhou Research Center for Particle Science and Technology Institute of Frontier and Interdisciplinary ScienceShandong UniversityQingdao 266237China Key Laboratory of Particle Physics and Particle Irradiation of Ministry of Education Shandong UniversityQingdao 266237China School of Physics and Astronomy Shanghai Jiao Tong UniversityKey Laboratory for Particle Astrophysics and Cosmology(MoE)Shanghai Key Laboratory for Particle Physics and CosmologyShanghai 200240China New Cornerstone Science Laboratory Tsung-Dao Lee InstituteShanghai Jiao Tong UniversityShanghai 200240China Shanghai Jiao Tong University Sichuan Research Institute Chengdu 610213China Jinping Deep Underground Frontier Science and Dark Matter Key Laboratory of Sichuan Province Liangshan 615000China Yalong River Hydropower Development Company Ltd.288 Shuanglin RoadChengdu 610051China School of Physics Sun Yat-Sen UniversityGuangzhou 510275China Sino-French Institute of Nuclear Engineering and Technology Sun Yat-Sen UniversityZhuhai 519082China Department of Physics Yantai UniversityYantai 264005China Key Laboratory of Nuclear Physics and Ion-beam Application(MOE) Institute of Modern PhysicsFudan UniversityShanghai 200433China School of Physics Beihang UniversityBeijing 102206China Beijing Key Laboratory of Advanced Nuclear Materials and Physics Beihang UniversityBeijing 102206China Peng Huanwu Collaborative Center for Research and Education Beihang UniversityBeijing 100191China Southern Center for Nuclear-Science Theory(SCNT) Institute of Modern PhysicsChinese Academy of SciencesHuizhou 516000China School of Mechanical Engineering Shanghai Jiao Tong UniversityShanghai 200240China Department of Physics University of MarylandCollege ParkMaryland 20742USA State Key Laboratory of Particle Detection and Electronics University of Science and Technology of ChinaHefei 230026China Department of Modern Physics University of Science and Technology of ChinaHefei 230026China School of Physics Peking UniversityBeijing 100871Ch

The proton-proton(pp)fusion chain dominates the neutrino production in the *** uncertainty of the predicted pp neutrino flux is at the sub-percent level,whereas that of the best measurement is O(10%).In this study,for the first time,we measure solar pp neutrinos in the electron recoil energy range from 24 to 144 keV using the PandaX-4T commissioning data with 0.63 tonne×year *** pp neutrino flux is determined as(8.0±3.9(stat)±10.0(syst))×1010 s^(-1)cm^(-2),which is consistent with the Standard Solar Model and existing measurements,corresponding to an upper flux limit of 23.3×10^(10)s^(-1)cm^(-2)at 90%C.L..

关键词： solar pp neutrino flux PandaX-4T electron recoil spectrum

Light Scattering by the Magnetic Core-Shell Spherical Particles

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Light Scattering by the Magnetic Core-Shell Spherical Partic...

针刺配合子午流注开穴推拿治疗老年顽固性失眠疗效观察

中国颗粒学会第六届学术年会暨海峡两岸颗粒技术研讨会

作者： jianqi shen,yuehuan wei,haitao yu,Jingtao Yang (1.Institute of Science,University of Shanghai for Science and Technology,Shanghai 200093,China 2.Institute of Power Engineering,University of Shanghai for Science and Technology,Shanghai 200093,China)

＜正＞The expressions of the Mie coefficients for computing light scattering by magnetic core-shell spheres are *** algorithm is given by introducing the logarithmic derivatives and ratios of the Riccati-Bessel functions,which can be stably calculated with the relevant *** algorithm is used for the case studies,one of which is the light scattering by core-shell or homogenous spheres with the same value of the ratio of the relative dielectric constant to the relative magnetic permeability and another discussed the possibility to monitor the coating of particles based on the extinction measurement.

关键词： Light scattering core-shell sphere magnetic sphere particle characterization

来源： cnki会议评论

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上海针灸杂志 2024年第9期43卷 969-973页

作者：金海涛周芳马剑然郭真甄于淼李智杰湖北中医药大学武汉430065

目的观察“和胃安神”针刺法配合子午流注开穴推拿治疗老年顽固性失眠临床疗效及其对患者睡眠质量及认知功能的影响。方法将150例老年顽固性失眠患者随机分为观察组和对照组,每组75例。观察组采用“和胃安神”针刺法联合子午流注开穴推... 详细信息

目的观察“和胃安神”针刺法配合子午流注开穴推拿治疗老年顽固性失眠临床疗效及其对患者睡眠质量及认知功能的影响。方法将150例老年顽固性失眠患者随机分为观察组和对照组,每组75例。观察组采用“和胃安神”针刺法联合子午流注开穴推拿治疗,对照组采用口服艾司唑仑片治疗。观察两组治疗前后匹兹堡睡眠质量指数(Pittsburgh sleep quality index,PSQI)评分、蒙特利尔认知评估量表(Montreal cognitive scale,MoCA)评分、汉密顿抑郁量表(Hamilton depression scale,HAMD)评分、汉密顿焦虑量表(Hamilton anxiety scale,HAMA)评分及5羟色胺(5-hydrox-ytryptamine,5-HT)、多巴胺(dopamine,DA)、褪黑素水平的变化情况,比较两组临床疗效。结果两组治疗后PSQI、HAMD、HAMA评分及DA水平较同组治疗前均显著降低,Mo CA评分及5-HT、褪黑素水平均显著升高,差异均具有统计学意义(P<0.05)。观察组治疗后PSQI、HAMD、HAMA评分及DA水平均明显低于对照组,Mo CA评分及5-HT、褪黑素水平均明显高于对照组,差异均具有统计学意义(P<0.05)。观察组总有效率为92.0%,明显高于对照组的80.0%,两组比较差异具有统计学意义(P<0.05)。结论“和胃安神”针刺法配合子午流注开穴推拿治疗老年顽固性失眠疗效确切,能提高患者睡眠质量和认知水平,改善其抑郁、焦虑情绪。

关键词：针刺疗法失眠睡眠障碍推拿子午流注纳子法认知功能睡眠质量

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Allele-aware chromosome-level genome assembly of Artemisia annua reveals the correlation between ADS expansion and artemisinin yield

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Molecular Plant 2022年第8期15卷 1310-1328页

作者： Baosheng Liao Xiaofeng shen Li Xiang Shuai Guo Shiyu Chen Ying Meng yu Liang Dandan Ding Junqi Bai Dong Zhang Tomasz Czechowski Yi Li Hui Yao Tingyu Mai Caroline Howard Chao Sun haitao Liu Jiushi Liu Jin Pei Jihai Gao Jigang Wang Xiaohui Qiu Zhihai Huang Hongyi Li Ling yuan Jianhe wei lan Graham Jiang Xu Boli Zhang Shilin Chen Instituteof ChineseMateria Medica China Academyof ChineseMedical SciencesBeijing 100700China Key Laboratory of Quality Evaluation of Chinese Medicine of the Guangdong Provincial Medical Products Administration the Second Clinical CollegeGuangzhou Universityof ChineseMedicineGuangzhou510006China Institute of Medicinal Plant Development Chinese Academy of Medical SciencesBeijing 100193China Artemisinin Research.Center China Academy of Chinese Medical SciencesBeijing 100700China Pharmacy College Chengdu University of Traditional Chinese MedicineChengdu 611137China Centre for Novel Agricultural Products Department of BiologyUniversity of YorkYorkUK Wellcome Sanger Institute Wellcome Trust Genome CampusHinxton CB101RQUK Kentucky Tobacco Research and Development Center University of KentuckyLexingtonKY 40546USA Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement&Guangdong Provincial Key Laboratory of Applied Botany South China Botanical GardenChineseAcademyof SciencesGuangzhou 510520China School of Chinese Materia Medica Tianjin University of Traditional Chinese MedicineTianjin 300193China Chengdu University of Traditional Chinese Medicine Chengdu 611137China

Artemisia annua is the major natural source of artemisinin,an anti-malarial medicine commonly used ***,we present chromosome-level haploid maps for two *** strains with different artemisinin contents to explore the relationships between genomic organization and artemisinin ***-fidelity sequencing,optical mapping,and chromatin conformation capture sequencing were used to assemble the heterogeneous and repetitive genome and resolve the haplotypes of *** 5o,ooo genes were annotated for each haplotype genome,and a triplication event that occurred approximately 58.12million years ago was examined for the first time in this species.A total of 3,903,467-5,193,414 variants(SNPs,indels,and structural variants)were identified in the 1.5-Gb genome during pairwise comparison between haplotypes,consistent with the high heterozygosity of this *** analyses revealed a correlation between artemisinin concents and the copy number of amorpha-4,11-dienes *** correlation was further confirmed by resequencing of *** samples with varied artemisinin *** consensus sequencing of transcripts facilitated the detection of paralog ***,our study provides chromosome-level allele-aware genome assemblies for two *** strains and new insights into the biosynthesis of artemisinin and its regulation,which will contribute to conquering malaria worldwide.

关键词： Artemisia annua artemisinin haplotype chromosome amorpha-4 11-diene synthase copy number variation

Detecting neutrinos from supernova bursts in PandaX-4T

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Chinese Physics C 2024年第7期48卷 14-21页

作者：庞彬宇阿布都沙拉木·阿布都克力木薄子豪陈葳谌勋程晨成兆侃崔祥仪樊英杰方德清符长波付孟婷耿立升 Karl Giboni 顾琳慧郭绪元韩晨成韩柯何昶达何金荣黄迪黄彦霖黄俊挺黄周侯汝全侯钰季向东巨永林李晨翔李家富李名川李帅杰李涛林箐刘江来陆聪聪芦晓盈罗棱尹罗云阳马文博马余刚冒亚军孟月宁旭阳祁宁春钱志成任祥祥 Nasir Shaheed 尚晓凤邵熙元申国防司琳孙文良谈安迪陶奕王安庆王萌王秋红王少博王思广王为王秀丽王舟魏月环武蒙蒙邬维浩夏经铠肖梦姣肖翔谢鹏伟燕斌斌颜玺雨杨继军杨勇姚玉坤喻纯旭袁影苑哲鑫宁张丹张敏桢张鹏张世博张澍张涛张洋张瀛心张园园赵力郑其斌周济芳周宁周小朋周永周钰博 New Cornerstone Science Laboratory Tsung-Dao Lee InstituteShanghai Jiao Tong UniversityShanghai200240China Research Center for Particle Science and Technology Institute of Frontier and Interdisciplinary ScienceShandong UniversityQingdao 266237ShandongChina Key Laboratory of Particle Physics and Particle Irradiation of Ministry of Education Shandong UniversityQingdao 266237ShandongChina School of Physics and Astronomy Shanghai Jiao Tong UniversityKey Laboratory for Particle Astrophysics and Cosmology(MoE)Shanghai Key Laboratory for Particle Physics and CosmologyShanghai 200240China Shanghai Jiao Tong University Sichuan Research Institute Chengdu 610213China School of Physics Sun Yat-Sen UniversityGuangzhou 510275China Sino-French Institute of Nuclear Engineering and Technology Sun Yat-Sen UniversityZhuhai519082China Department of Physics Yantai UniversityYantai 264005China Key Laboratory of Nuclear Physics and Ion-beam Application(MOE) Institute of Modern PhysicsFudan UniversityShanghai 200433China School of Physics Peking UniversityBeijing 100871China School of Physics Beihang UniversityBeijing 102206China International Research Center for Nuclei and Particles in the Cosmos&Beijing Key Laboratory of Advanced Nuclear Materials and Physics Beihang UniversityBeijing 100191China School of Physics and Microelectronics Zhengzhou UniversityZhengzhouHenan 450001China Yalong River Hydropower Development Company Ltd.288 Shuanglin RoadChengdu 610051China School of Medical Instrument and Food Engineering University of Shanghai for Science and TechnologyShanghai 200093China School of Mechanical Engineering Shanghai Jiao Tong UniversityShanghai 200240China Department of Physics University of MarylandCollege ParkMaryland 20742USA State Key Laboratory of Particle Detection and Electronics University of Science and Technology of ChinaHefei 230026China Department of Modern Physics University of Science and Technology of ChinaHefei 230026China School of Physics Nankai UniversityTian

Neutrinos from core-collapse supernovae are essential for understanding neutrino physics and stellar ***-phase xenon dark matter detectors can be used to track explosions of galactic supernovae by detecting neutrinos through coherent elastic neutrino-nucleus *** this study,a variation of progenitor masses and explosion models are assumed to predict neutrino fluxes and spectra,which result in the number of expected neutrino events ranging from 6.6 to 13.7 at a distance of 10 kpc over a 10-s duration with negligible backgrounds at *** specialized triggering alarms for monitoring supernova burst neutrinos are *** efficiency of detecting supernova explosions at various distances in the Milky Way is *** alarms will be implemented in the real-time supernova monitoring system at PandaX-4T in the near future,which will provide supernova early warnings for the astronomical community.

关键词： core-collapse supernovae neutrinos liquid xenon detectors supernova early warnings