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Non-breeding movements of the Black-tailed Gull(Larus crassirostris)

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Avian Research 2023年第2期14卷 206-214页

作者： Huan Xia Cecilia Nilsson Kasper Thorup chenxi jia Fumin Lei Key Laboratory of Zoological Systematics and Evolution Institute of ZoologyChinese Academy of SciencesBeijing100101China College of Life Science University of Chinese Academy of SciencesBeijing100049China Center for Macroecology Evolution and ClimateGlobe InstituteUniversity of CopenhagenDK-2100CopenhagenDenmark Center for Excellence in Animal Evolution and Genetics Chinese Academy of SciencesKunming650223China

With the continued development of tracking technology and increasing interest in animal movement,our understanding of migration behavior has become more ***,there are still many species that have not been well studied,particularly sea ***,we present the first year-round Global Positioning System(GPS)tracking data of the Black-tailed Gull(Larus crassirostris)at the population *** used solar-powered GPS-Global System for Mobile communication(GSM)loggers to successfully track 30 individuals breeding at Xingrentuo Islet,Liaoning Province,China,for 1-3 *** for one individual who roamed in the far north of the Yellow Sea during non-breeding period,all others did a directed southward *** routes and wintering sites differed among migrating gulls and between years for the birds tracked for two or more ***,during wintering,the migrating gulls were more likely to travel over a large body of water and shift sites,and some trajectories were quite complex,which was probably closely related to what we observed in the field about their boat-chasing *** to wintering movements,the post-breeding movements ranged over a smaller ***,almost all of them had a long post-breeding period near the breeding islet(≥120days,<220 km from the breeding islet),and 80%of the gulls who were tracked more than one year had at least one faithful post-breeding *** to the post-breeding period,only approximately half of the migrating gulls had a pre-breeding period that was shorter(3-20 days)and closer to the breeding islet(≤80 km).Migration distance varied among migrating gulls(range 209-2405 km)and the gulls moved least distance during postbreeding ***,we found that the southward movement of the migrating gulls occurred when the temperature near the breeding islet dropped;specifically,the gulls directly migrated southward away from the post-breeding *** results suggest that the B

关键词： Black-tailed Gull GPS tracking Larus crassirostris Migration Post-breeding Pre-breeding Sea bird Wintering

GPS tracking data reveal the annual spatiotemporal movement patterns of Bridled Terns

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Avian Research 2022年第4期13卷 424-428页

作者： Xin Yu Ping Fan Yun Wu Yongbin Chang chenxi jia Fumin Lei Key Laboratory of Zoological Systematics and Evolution Institute of ZoologyChinese Academy of SciencesBeijing100101China College of Life Sciences University of Chinese Academy of SciencesBeijing100049China Center for Excellence in Animal Evolution and Genetics Chinese Academy of SciencesKunming650201China

Understanding the spatiotemporal patterns of animal movement is a central theme in the growing field of movement *** Bridled Tern(Onychoprion anaethetus)is widely distributed across tropical and subtropical latitudes;however,knowledge of its annual movement is based only on relatively scarce recoveries of ringed *** the annual movement of pelagic seabirds is important to identify the impact of changes of marine habitats on *** examined fine-scaled movement patterns of the species from two colonies in southern China by using GPS-GSM transmitters in 2018–***-three terns bred in Xichiyu Islet and Qilianyu Islet while wintered in four different sites:Gulf of Thailand,Natuna Islands,The Sulu Sea,and Makassar *** Terns made small detours and employed a fly-and-forage strategy with frequent stopovers to forage during autumn migration,but took more direct routes and reduced the need for stopovers during spring *** of migration between breeding and winter sites was significantly longer in autumn(average 3635 km)when compared with spring(2777 km).Ten birds with whole-year tracking data used the same breeding sites both years and four birds with tracking data of two consecutive years returned to the same wintering area,indicating that Bridled Terns are highly faithful to their breeding and wintering grounds.

关键词： GPS-GSM Transmitters Bridled tern Fidelity Migration

Distribution pattern and driving factors of genetic diversity of passerine birds in the Mountains of Southwest China

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Avian Research 2022年第3期13卷 249-255页

作者： Yongbin Chang Gang Song Dezhi Zhang chenxi jia Ping Fan Yan Hao Yanzhu Ji Fumin Lei Key Laboratory of Zoological Systematics and Evolution Institute of ZoologyChinese Academy of SciencesBeijing100101China University of Chinese Academy of Sciences Beijing100049China Center for Excellence in Animal Evolution and Genetics Chinese Academy of SciencesKunming650223China

Genetic diversity is one of the three dimensions of biodiversity and fundamental to various life forms on the *** the distribution pattern of genetic diversity and its driving forces has been an important topic in ecology,biogeography and conservation biology since the last *** investigated the genetic diversity pattern of passerine birds in the Mountains of Southwest China,a global biodiversity hotspot with the highest species richness of birds in the entire Eurasia,and explored the influencing forces of environmental variables on genetic *** compiled 1189 Cytochrome b sequences of 27 passerine species from 152 geographic sites,covering the range of Mountains of Southwest China and its adjoining *** generated genetic diversity distribution maps using a grid-cell method based on nucleotide diversity and haplotype diversity *** further analyzed the variation pattern of the two indices along latitudinal,longitudinal,and elevational *** correlations between the two indices and environmental variables were also *** nucleotide diversity hotspots were mostly located in the southern Hengduan Mountains,while for haplotype diversity,three hotspots were detected:the southeast edge of the Qinghai-Tibetan Plateau,the southern Hengduan Mountains and the Qinling *** was no monotonic increasing or decreasing pattern in nucleotide diversity or haplotype diversity along latitudinal,longitudinal or elevational gradients except for altitudinal *** and model selection analyses detected multiple environmental variables in driving genetic diversity patterns,including temperature,precipitation,vegetation,human influence,longitude and altitude *** to the pattern of species richness,the nucleotide diversity pattern of passerine birds in the Mountains of Southwest China presents a decreasing trend from southwest to northeast,while the haplotype diversity pattern is more likely decreased from we

关键词： Environmental variables Genetic diversity pattern Mountains of Southwest China Passerine birds

基于SiC功率器件的单相APF开关损耗分析及应用技术研究

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电网技术 2017年第12期41卷 4030-4037页

作者：贾晨曦杨东蒲新征杨龙月江苏建筑职业技术学院机电工程学院江苏省徐州市221116 中国矿业大学信息与电气工程学院江苏省徐州市221116

提出一种应用于单相有源滤波器(active power filter,APF)的SiC功率器件的开关损耗模型。该模型考虑了封装和印制电路板(printed circuit board,PCB)的寄生参数与器件结电容的非线性。详细阐述四种单相APF工作状态下的建模原理,并给出... 详细信息

提出一种应用于单相有源滤波器(active power filter,APF)的SiC功率器件的开关损耗模型。该模型考虑了封装和印制电路板(printed circuit board,PCB)的寄生参数与器件结电容的非线性。详细阐述四种单相APF工作状态下的建模原理,并给出了各工作状态下各时间段的开关过程分析与损耗计算方程。基于影响APF谐波补偿性能的关键因素的分析,结合APF的工作特点,提出SiC器件高开关频率兼容驱动方式与封装及电路布局优化方案。搭建基于单相APF的SiC功率器件测试实验样机,在不同电压点和电流点下进行测试,并将测试结果与估算结果进行比较。比较结果高度吻合,功率损耗误差在10%以内,验证了提出的开关损耗模型的准确性和有效性。

关键词： SiC功率器件单相APF 开关损耗模型寄生参数

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禁食对小鼠下丘脑磷酸化蛋白质组的影响

天津大学学报（自然科学与工程技术版） 2022年第4期55卷 357-363页

作者：王梦凡洪杰王倩倩姚迪贾辰熙天津大学化工学院天津300350 北京生命组学研究所蛋白质组学国家重点实验室北京102206

本研究旨在通过干预小鼠进食,探讨对小鼠下丘脑中蛋白质磷酸化修饰和相关信号通路的影响,为完善蛋白磷酸化调控网络提供有价值的信息.将实验小鼠平均分为3组,分别为对照组(con)、禁食组(D2)和禁食后恢复组(DR),每组小鼠数量为3只.在48 h... 详细信息

本研究旨在通过干预小鼠进食,探讨对小鼠下丘脑中蛋白质磷酸化修饰和相关信号通路的影响,为完善蛋白磷酸化调控网络提供有价值的信息.将实验小鼠平均分为3组,分别为对照组(con)、禁食组(D2)和禁食后恢复组(DR),每组小鼠数量为3只.在48 h内,con组正常提供饲料,D2组不提供饲料,DR组前44 h不提供饲料、后4 h提供饲料.同时解剖3组小鼠并提取下丘脑组织,提取、纯化和酶解下丘脑组织的蛋白质,并采用二氧化钛富集分离技术富集磷酸化肽段,运用高通量液相色谱-质谱联用进行检测,以鉴定样品中的磷酸化蛋白质组.利用非标记定量方法筛选差异表达的磷酸化蛋白以及位点,对鉴定数据进行GO富集和KEGG通路分析,并探究磷酸化蛋白间的相互作用关系.结果显示,共鉴定到4810个磷酸化蛋白质,对应于14259个磷酸化位点发生了变化.采用数学统计方法分析,成功确认小鼠下丘脑中有681个磷酸化蛋白差异显著,观察到这些差异蛋白与蛋白结合、激酶行为、转运、轴突生成等分子活动和生物学过程有关,并富集到了MAPK、细胞内噬和环磷酸腺苷信号通路等11个主要的信号通路.这说明禁食会对小鼠下丘脑中多种蛋白质的磷酸化修饰水平产生显著的影响,为完善小鼠下丘脑磷酸化信号调控网络提供了有价值的信息.

关键词：食欲禁食下丘脑蛋白质组磷酸化修饰

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高通量质谱法用于小鼠脑部神经肽的鉴定

生物工程学报 2018年第4期34卷 594-601页

作者：邵先锋马敏陈瑞冰贾辰熙天津医科大学基础医学院天津300070 国家蛋白质科学中心北京蛋白质组研究中心蛋白质组学国家重点实验室放射与辐射医学研究所北京102206 天津大学生命科学学院天津300072

神经肽在参与调控人体各种生理功能上发挥着重要的作用,如痛觉、睡眠、情绪、学习与记忆等生理活动都受到神经肽的影响。神经肽主要存在于机体的神经组织内,其他体液和器官中也有少量的分布。目前对全脑组织神经肽高通量鉴定的研究仍不... 详细信息

神经肽在参与调控人体各种生理功能上发挥着重要的作用,如痛觉、睡眠、情绪、学习与记忆等生理活动都受到神经肽的影响。神经肽主要存在于机体的神经组织内,其他体液和器官中也有少量的分布。目前对全脑组织神经肽高通量鉴定的研究仍不足,高通量检测这些神经肽对了解神经肽的组成和功能具有重要的意义。本研究通过对小鼠全脑组织内源性肽段的萃取,运用液相串联质谱(LC-MS/MS)技术对全脑组织的神经肽进行检测,共鉴定到1 830条内源性肽段和99条预测神经肽肽段。这些内源性肽段的鉴定在疾病的治疗和机制研究以及药物的研发方面提供了参考价值,也为研究新的神经肽及其功能奠定了基础。

关键词：神经肽全脑组织高通量鉴定内源性肽段液相串联质谱

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高通量质谱法用于小鼠器官内源性肽的鉴定

生物工程学报 2019年第4期35卷 697-706页

作者：张佩邵先锋王振山贾辰熙河北大学生命科学学院河北保定071000 军事科学院军事医学研究院生命组学研究所国家蛋白质科学中心(北京)北京蛋白质组研究中心北京102206 天津医科大学基础医学院天津300070

内源性肽以细胞因子、生长激素、激素肽等形式在人体的内分泌、神经、细胞生长和生殖各个领域发挥功能。神经肽是一种内源性肽,与痛觉、睡眠、情绪、学习与记忆等生理活动相关,不但存在于脑部神经细胞,也存在于其他体液和器官内并发挥... 详细信息

内源性肽以细胞因子、生长激素、激素肽等形式在人体的内分泌、神经、细胞生长和生殖各个领域发挥功能。神经肽是一种内源性肽,与痛觉、睡眠、情绪、学习与记忆等生理活动相关,不但存在于脑部神经细胞,也存在于其他体液和器官内并发挥重要作用。目前对器官内源性肽的研究仍不足,尤其是其中的神经肽。文中应用液质联用串联质谱高通量鉴定胰腺、心脏、肝脏和肾脏中内源性肽的分布以及神经肽的种类。鉴定结果显示,在肝脏中内源性肽和神经肽的数目最多,而胰腺中最少;所鉴定到的内源性肽具有器官特异性,在4个器官中分别呈现不同的动态分布;4个器官中神经肽的LPV(最长肽变异体)数目差异较大,而且基因家族的分布也各不相同,比如胰腺中的神经肽多属于Glucagon家族,心脏中的神经肽分别属于ACBD7、Granins、PEBP等几个家族。鉴定结果将为疾病的机制研究和治疗药物的研发提供参考。

关键词：器官内源性肽神经肽高通量鉴定液质联用串联质谱

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全电流补偿消弧线圈关键技术综述

电力系统保护与控制 2015年第9期43卷 145-154页

作者：贾晨曦杨龙月杜贵府江苏师范大学电气工程及自动化学院江苏徐州221116 中国矿业大学信息与电气工程学院江苏徐州221008

全电流补偿消弧线圈可有效解决接地故障残余电流中阻性与谐波电流成分的补偿问题,同时抑制电弧接地过电压,保证配电网供电的安全性和可靠性,因此具有广阔的应用前景。基于全电流补偿消弧线圈的原理、结构及研究现状,对全电流补偿消弧线... 详细信息

全电流补偿消弧线圈可有效解决接地故障残余电流中阻性与谐波电流成分的补偿问题,同时抑制电弧接地过电压,保证配电网供电的安全性和可靠性,因此具有广阔的应用前景。基于全电流补偿消弧线圈的原理、结构及研究现状,对全电流补偿消弧线圈研究存在的不足之处和利用其进行接地残流补偿时存在的技术问题进行总结,指出将零序电压作为检测和分析对象对残流补偿十分有利。最后,给出全电流补偿消弧线圈的控制思路,阐述了对其进行增容改造的必要性。

关键词：全电流补偿消弧线圈接地残流主从控制增容改造

高温超导带材绕组失超检测平台搭建与测试分析

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低温与超导 2015年第6期43卷 50-54,92页

作者：张友桥贾晨曦方进宁波职业技术学院电信学院宁波315800 北京交通大学电气工程学院北京100044

探讨了超导线圈失超特性、失超检测的基本原理;提出了一种创新型的检测方法—电压差相位检测法。在此基础上,重点描述了在LabVIEW中的G语言编程环境下,基于电压差相位检测法设计出的失超检测系统,以及其在单机测试和NI开发平台中的测试... 详细信息

探讨了超导线圈失超特性、失超检测的基本原理;提出了一种创新型的检测方法—电压差相位检测法。在此基础上,重点描述了在LabVIEW中的G语言编程环境下,基于电压差相位检测法设计出的失超检测系统,以及其在单机测试和NI开发平台中的测试结果,验证了电压相位差检测法的可行性、优越性。将该方法与已有的失超检测方法进行比较后,证明了本方法在检测精度、运行环境等方面优于现有方法,并且完全适用于超导电机和超导变压器。

关键词：高温超导线圈失超检测电压差相角检测法 LabVIEW软件