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Disentangling the relative effects of semi-natural habitats within different landscape agricultural intensities on bird communities

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Avian Research 2025年第01期 63-73页

作者： Wenyu Xu Yongshan Xu Zheng Han Jiyuan Yao Piotr Tryjanowski haitao wang Jilin Engineering Laboratory for Avian Ecology and Conservation Genetics School of Life Sciences Northeast Normal University Jilin Key Laboratory of Animal Resource Conservation and Utilization Northeast Normal University College of Wildlife and Protected Area Northeast Forestry University Animal's Scientific and Technological Institute Agricultural University of Jilin Department of Zoology Poznan University of Life Sciences

The process of agricultural intensification has led to significant reductions in biodiversity globally. Previous studies examined the role of semi-natural habitats within agroecosystems in supporting bird communities, but few have considered the effects of landscape agricultural intensity on avian conservation potential of seminatural habitats. Here, we disentangle the relative effects of semi-natural habitats within different landscape agricultural intensities on bird community composition in central and eastern Jilin Province, China. We established 322 sampling sites distributed across low, middle, and high landscape agricultural intensities, with 103, 118, and 101 sites respectively. Each sampling site was visited two times in May and June 2023 to test the dissimilarities in bird composition between different landscape agricultural intensities. We found that middleintensity agriculture supported the highest bird diversity in most cases, but low-intensity plays an important role in maintaining insectivorous birds. We used generalized linear models and model selection to assess the relative impacts of semi-natural habitats on bird community along agricultural intensity respectively. Our results showed that the effects of agriculture on bird communities were predominantly influenced by the amount of semi-natural habitats, with effects that differ in accordance with the level of landscape agricultural intensity. Priority should be given to preserve or/and plant these semi-natural habitats in middle-intensity agriculture due to the stronger effect sizes on bird diversity. Specifically, we suggested preserving and promoting woodlands and shrubs in high-intensity agriculture, and simultaneously increasing crop diversity to protect bird diversity in agriculture landscapes in the context of increasing crop intensification globally.

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Distribution pattern and niche overlap of sympatric breeding birds alonghuman-modified habitat gradients in Inner Mongolia, China

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Avian Research 2025年第01期 11-20页

作者： Xi Yang Lishi Zhang Piotr Tryjanowski Frédéric Jiguet Zheng Han haitao wang School of Life Sciences Northeast Normal University College of Agricultural Hulunbuir University Animal's Scientific and Technological Institute Agricultural University of Jilin Department of Zoology Poznan University of Life Sciences CESCO UMR7204 MNHN-CNRS-Sorbonne Université Jilin Provincial Key Laboratory of Animal Resource Conservation and Utilization Northeast Normal University Jilin Engineering Laboratory for Avian Ecology and Conservation Genetics Northeast Normal University

The transformation of natural habitats into human-modified landscapes has far-reaching consequences for species distribution and abundance. As species adapt to these changing environments, shifts in distribution patterns,niche dynamics, and interspecies interactions may occur, impacting biodiversity at multiple levels and potentially leading to ecosystem imbalances. This study aims to assess the impact of variations in vegetation composition and human disturbance on the distribution of sympatric breeding birds and to determine the extent of niche overlap or differentiation among these species. We conducted field surveys and collected data on bird distribution, vegetation composition, and level of human disturbance in eastern Inner Mongolian grasslands. We focused on the six most frequently co-occurring breeding birds, representing a mix of sparrows, larks, and corvids. Generalized Additive Models revealed varying responses of species occurrence along habitat *** like the Eurasian Skylark(Alauda arvensis), Mongolian Lark(Melanocorypha mongolica), and Asian Shorttoed Lark(Calandrella cheleensis), increased in larger and more connected habitats, while others, like the Tree Sparrow(Passer montanus), Eurasian Magpie(Pica pica), and Barn Swallow(Hirundo rustica), adapted to more fragmented habitats. Niche analysis indicated habitat generalists tended to occupy larger niches than grassland specialists. Substantial niche overlap was also found among the six co-occurring bird species. Conservation efforts should consider the specific needs of specialist species and strive to maintain or restore critical grassland habitats. Additionally, promoting sustainable agricultural practices that balance the needs of birds and human activities can contribute to the coexistence of generalist and specialist bird species in modified landscapes.

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Early identification of stroke through deep learning with multi-modal human speech and movement data

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Neural Regeneration Research 2025年第1期20卷 234-241页

作者： Zijun Ou haitao wang Bin Zhang Haobang Liang Bei Hu Longlong Ren Yanjuan Liu Yuhu Zhang Chengbo Dai Hejun Wu Weifeng Li Xin Li School of Computer Science and Engineering Sun Yat-sen UniversityGuangzhouGuangdong ProvinceChina Department of Neurology Guangdong Neuroscience InstituteGuangdong Provincial People’s Hospital(Guangdong Academy of Medical Sciences)Southern Medical UniversityGuangzhouGuangdong ProvinceChina Department of Emergency Medicine Guangdong Provincial People’s Hospital(Guangdong Academy of Medical Sciences)Southern Medical UniversityGuangzhouGuangdong ProvinceChina

Early identification and treatment of stroke can greatly improve patient outcomes and quality of *** clinical tests such as the Cincinnati Pre-hospital Stroke Scale(CPSS)and the Face Arm Speech Test(FAST)are commonly used for stroke screening,accurate administration is dependent on specialized *** this study,we proposed a novel multimodal deep learning approach,based on the FAST,for assessing suspected stroke patients exhibiting symptoms such as limb weakness,facial paresis,and speech disorders in acute *** collected a dataset comprising videos and audio recordings of emergency room patients performing designated limb movements,facial expressions,and speech tests based on the *** compared the constructed deep learning model,which was designed to process multi-modal datasets,with six prior models that achieved good action classification performance,including the I3D,SlowFast,X3D,TPN,TimeSformer,and *** found that the findings of our deep learning model had a higher clinical value compared with the other ***,the multi-modal model outperformed its single-module variants,highlighting the benefit of utilizing multiple types of patient data,such as action videos and speech *** results indicate that a multi-modal deep learning model combined with the FAST could greatly improve the accuracy and sensitivity of early stroke identification of stroke,thus providing a practical and powerful tool for assessing stroke patients in an emergency clinical setting.

关键词： artificial intelligence deep learning diagnosis early detection FAST screening stroke

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从扩军到精兵:1940—1941年路东地区新四军发展路径转型

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安徽史学 2025年第1期 150-159页

作者：汪海涛中国第二历史档案馆档案编研处江苏南京210000

新四军在向北、向东发展的过程中,江北指挥部所辖部队为适应反顽斗争形势,通过数次扩军运动增强了实力,巩固了津浦路东地区抗日根据地。但随着抗战形势的发展变化,根据地人力资源的供需趋于紧张,行政组织型的规模性扩军已经不合时宜。... 详细信息

新四军在向北、向东发展的过程中,江北指挥部所辖部队为适应反顽斗争形势,通过数次扩军运动增强了实力,巩固了津浦路东地区抗日根据地。但随着抗战形势的发展变化,根据地人力资源的供需趋于紧张,行政组织型的规模性扩军已经不合时宜。在军事建设与根据地建设两难的情况下,路东地区新四军响应中央“精兵简政”的号召调整武装力量的架构,以节省根据地人力和财政负担,保证了在华中地区进行持久抗战的内生动力的存续。

关键词：新四军津浦路东扩军精兵简政

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Disentangling the relative effects of semi-natural habitats within different landscape agricultural intensities on bird communities

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Avian Research 2025年第1期16卷 63-73页

作者： Xu, Wenyu Xu, Yongshan Han, Zheng Yao, Jiyuan Tryjanowski, Piotr wang, haitao Jilin Engineering Laboratory for Avian Ecology and Conservation Genetics School of Life Sciences Northeast Normal University Changchun 130024 China Jilin Key Laboratory of Animal Resource Conservation and Utilization Northeast Normal University Changchun 130024 China College of Wildlife and Protected Area Northeast Forestry University Harbin 150040 China Animal's Scientific and Technological Institute Agricultural University of Jilin Changchun 130118 China Department of Zoology Poznań University of Life Sciences Wojska Polskiego 71C Poznań PL-60-625 Poland

The process of agricultural intensification has led to significant reductions in biodiversity globally. Previous studies examined the role of semi-natural habitats within agroecosystems in supporting bird communities, but few have considered the effects of landscape agricultural intensity on avian conservation potential of semi-natural habitats. Here, we disentangle the relative effects of semi-natural habitats within different landscape agricultural intensities on bird community composition in central and eastern Jilin Province, China. We established 322 sampling sites distributed across low, middle, and high landscape agricultural intensities, with 103, 118, and 101 sites respectively. Each sampling site was visited two times in May and June 2023 to test the dissimilarities in bird composition between different landscape agricultural intensities. We found that middle-intensity agriculture supported the highest bird diversity in most cases, but low-intensity plays an important role in maintaining insectivorous birds. We used generalized linear models and model selection to assess the relative impacts of semi-natural habitats on bird community along agricultural intensity respectively. Our results showed that the effects of agriculture on bird communities were predominantly influenced by the amount of semi-natural habitats, with effects that differ in accordance with the level of landscape agricultural intensity. Priority should be given to preserve or/and plant these semi-natural habitats in middle-intensity agriculture due to the stronger effect sizes on bird diversity. Specifically, we suggested preserving and promoting woodlands and shrubs in high-intensity agriculture, and simultaneously increasing crop diversity to protect bird diversity in agriculture landscapes in the context of increasing crop intensification globally. © 2025 The Authors

关键词： Agricultural ecosystems Avian conservation Avian diversity Feeding guild Land management

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管片上浮模型试验平台研制

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隧道建设(中英文) 2025年第1期45卷 132-138页

作者：王海涛王悦孙九春腾达建设集团股份有限公司上海200122

为深入探究盾构施工中管片上浮的关键因素,特别是浆液性质对管片上浮的影响规律,设计管片上浮荷载感知测量结构,自主研发具有可视化特性的管片上浮模型试验平台。通过数值分析和注水测试,验证该试验平台结构的安全性和功能的可实施性,... 详细信息

为深入探究盾构施工中管片上浮的关键因素,特别是浆液性质对管片上浮的影响规律,设计管片上浮荷载感知测量结构,自主研发具有可视化特性的管片上浮模型试验平台。通过数值分析和注水测试,验证该试验平台结构的安全性和功能的可实施性,得到管片受浮力大小的系统测量误差。试验结果表明:1)注浆过程中管片受上浮荷载的变化与注浆体积呈线性关系,R^(2)值均大于93%,管片平均上浮荷载线性变化率是理论上浮荷载线性变化率的62.6%,与理论计算值相差28.79N/cm。2)浮动密封内油脂对管片上浮存在抑制作用,产生的阻力约为理论上浮荷载的41.1%,实际上浮荷载与理论上浮荷载最大误差约2.1%,能够较为准确地模拟管片上浮的受力情况。3)截面荷载增长率随注浆体积的变化呈现出先减小后增大的趋势,管片的横向位移约束对管片受倾覆荷载产生的姿态偏移具有较好的控制效果。

关键词：盾构施工管片上浮模型试验平台注浆上浮荷载

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Distribution pattern and niche overlap of sympatric breeding birds along human-modified habitat gradients in Inner Mongolia, China

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Avian Research 2025年第1期16卷

作者： Yang, Xi Zhang, Lishi Tryjanowski, Piotr Jiguet, Frédéric Han, Zheng wang, haitao School of Life Sciences Northeast Normal University Changchun 130024 China College of Agricultural Hulunbuir University Hulunbuir 021000 China Animal's Scientific and Technological Institute Agricultural University of Jilin Changchun 130118 China Department of Zoology Poznań University of Life Sciences Wojska Polskiego 71C Poznan PL-60-625 Poland CESCO UMR7204 MNHN-CNRS-Sorbonne Université CP135 43 Rue Buffon Paris 75005 France Jilin Provincial Key Laboratory of Animal Resource Conservation and Utilization Northeast Normal University Changchun 130024 China Jilin Engineering Laboratory for Avian Ecology and Conservation Genetics Northeast Normal University Changchun 130024 China

The transformation of natural habitats into human-modified landscapes has far-reaching consequences for species distribution and abundance. As species adapt to these changing environments, shifts in distribution patterns, niche dynamics, and interspecies interactions may occur, impacting biodiversity at multiple levels and potentially leading to ecosystem imbalances. This study aims to assess the impact of variations in vegetation composition and human disturbance on the distribution of sympatric breeding birds and to determine the extent of niche overlap or differentiation among these species. We conducted field surveys and collected data on bird distribution, vegetation composition, and level of human disturbance in eastern Inner Mongolian grasslands. We focused on the six most frequently co-occurring breeding birds, representing a mix of sparrows, larks, and corvids. Generalized Additive Models revealed varying responses of species occurrence along habitat gradients. Species like the Eurasian Skylark (Alauda arvensis), Mongolian Lark (Melanocorypha mongolica), and Asian Short-toed Lark (Calandrella cheleensis), increased in larger and more connected habitats, while others, like the Tree Sparrow (Passer montanus), Eurasian Magpie (Pica pica), and Barn Swallow (Hirundo rustica), adapted to more fragmented habitats. Niche analysis indicated habitat generalists tended to occupy larger niches than grassland specialists. Substantial niche overlap was also found among the six co-occurring bird species. Conservation efforts should consider the specific needs of specialist species and strive to maintain or restore critical grassland habitats. Additionally, promoting sustainable agricultural practices that balance the needs of birds and human activities can contribute to the coexistence of generalist and specialist bird species in modified landscapes. © 2025 The Authors

关键词： Breeding birds Community assembly Habitat selection Niche overlap Species co-existence

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不同电流下Ce掺杂AgCuO触头材料转移行为研究

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电工技术学报 2025年第2期40卷 574-586页

作者：王海涛王彦岭李书舸王景芹李文华赵伟省部共建电工装备可靠性与智能化国家重点实验室(河北工业大学) 天津300130 电工产品可靠性技术省部共建协同创新中心天津300130 曼彻斯特大学英国曼彻斯特M139PL

材料转移是电弧侵蚀中的一个必然过程,研究材料转移机制对于优化电极的材料选择和设计,开发更耐用、更稳定的电极材料有重要意义,该文以Ce掺杂的AgCuO触头为研究对象,分析材料转移方向在不同电流下变化的机理。通过溶胶-凝胶法和粉末冶... 详细信息

材料转移是电弧侵蚀中的一个必然过程,研究材料转移机制对于优化电极的材料选择和设计,开发更耐用、更稳定的电极材料有重要意义,该文以Ce掺杂的AgCuO触头为研究对象,分析材料转移方向在不同电流下变化的机理。通过溶胶-凝胶法和粉末冶金法制备触头试样,借助JF04D电接触测试系统,在18 V电压下设置10、15、20和25 A四个电流等级,对触头进行20000次电弧侵蚀实验。首先对比了15 A电流条件下添加Ce后材料的性能提升情况,然后重点关注AgCuOCeO_(2)触头在不同电流下的燃弧能量与燃弧时间,测定侵蚀实验后阴阳极的质量变化,采用三维表面轮廓仪和扫描电镜表征阳极和阴极的表面侵蚀形貌,并对不同电流下的材料转移机制进行深入讨论分析。结果表明,Ce元素提升了触头性能,电流大小影响电极间金属离子和气体离子的浓度,引发金属相或气体相电弧的产生,导致材料转移方向在电流增大时发生改变。为选用和开发性能优良的AgCuO触头材料,进而提升AgCuO触头可靠性提供了理论依据。

关键词： AgCuO触头材料电弧侵蚀材料转移表面形貌燃弧能量燃弧时间

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群伞减速系统刚柔耦合动力学建模与分析

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航空学报 2025年第1期46卷 99-113页

作者：王海涛雷江利荣伟国防科技大学空天科学学院长沙410073 北京空间机电研究所北京100094

群伞减速系统被新一代可重复使用载人飞船普遍采用,对群伞系统进行动力学分析评估是航天器减速任务设计分析的重要环节。针对航天器群伞减速系统建立了多阶段、变结构、多维度刚柔耦合非线性多体动力学模型,分析了系统动力学模型的特点... 详细信息

群伞减速系统被新一代可重复使用载人飞船普遍采用,对群伞系统进行动力学分析评估是航天器减速任务设计分析的重要环节。针对航天器群伞减速系统建立了多阶段、变结构、多维度刚柔耦合非线性多体动力学模型,分析了系统动力学模型的特点,指出群伞减速系统动力学具有复杂系统动力学的属性。通过仿真分析了航天器、减速伞和主伞在系统仿真中的动力学和运动参数,并对蒙特卡洛偏差仿真的结果进行了总结。仿真验证和分析结果表明,建立的刚柔耦合动力学模型能够准确模拟群伞减速系统工作过程和群伞碰撞等动力学行为。最后,针对降落伞减速系统动力学存在的问题和未来发展进行了分析和建议。

关键词：群伞系统刚柔耦合复杂系统动力学建模减速

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基于燃料电池客车智能综合热管理控制系统集成与研究

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汽车实用技术 2025年第1期50卷 7-12页

作者：汪海涛北京福田欧辉新能源汽车有限公司北京102206

为解决燃料电池客车单一电热式采暖系统高能耗的问题,并减少热能流失,文章基于氢燃料客车燃料电池发动机传统分布式热量控制策略,提出一种整车一体化智能综合热管理控制策略。将燃料电池发动机工作时产生的热量进行回收利用,并通过板翅... 详细信息

为解决燃料电池客车单一电热式采暖系统高能耗的问题,并减少热能流失,文章基于氢燃料客车燃料电池发动机传统分布式热量控制策略,提出一种整车一体化智能综合热管理控制策略。将燃料电池发动机工作时产生的热量进行回收利用,并通过板翅式热交换器将热能充分转化并应用于客舱内采暖和前风挡除霜除雾,实现高集成度和精细化的热量管理。该技术可降低单一的电热式采暖系统的能耗,提升整车采暖舒适性体验,使整车经济性能大幅提升。

关键词：氢能燃料电池一体化热管理降低能耗

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