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Emerging technologies for advancing molecular and cellular research in bats 认领 引用
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作者 Peng Chen Zhen-Na Zhang +4 位作者 Rong-Song Luo Zeng-Liang Zhang Qi Liu Cheng-Gang Zou Zhen Liu 《Zoological Research》 SCIE CSCD 2026年第1期215-232,共18页
Bats represent a remarkable mammalian lineage,distinguished by the evolution of powered flight,sophisticated echolocation,exceptional longevity,and robust resistance to viral infections.These adaptations have contribu... Bats represent a remarkable mammalian lineage,distinguished by the evolution of powered flight,sophisticated echolocation,exceptional longevity,and robust resistance to viral infections.These adaptations have contributed to their rapid and extensive diversification over a short evolutionary period.Extensive research on bat biology has elucidated key aspects of species diversity,adaptive evolution,and the molecular frameworks that confer resistance to viral pathogens.Recent integration of high-resolution multi-omics,single-cell transcriptomics,and advanced three-dimensional culture systems has significantly expanded exploration of bat biology at the molecular and cellular levels.This review consolidates current advances in our understanding of bat species diversification,development,and immunological adaptations with relevance to human health.Emphasis is placed on emerging technologies and methodologies that have transformed the study of bat physiology and hostpathogen interactions.Prospective avenues for research are also outlined,including the development of new animal models and the application of cutting-edge biotechniques.These advances are anticipated to expand the utility of bats as a critical platform for biomedical and evolutionary insight. 展开更多
关键词 Bat Evolution Adaptation Organoid Artificial Intelligence
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Geographic and genetic factors shape acoustic divergence and dialect-like variation in communication calls in the greater horseshoe bats 认领 引用
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作者 Kang-Kang Zhang Hong-Wei Wang +6 位作者 Hong-Jun Lin Guan-Jun Lu Xiao-Bin Huang Tong Liu Walter Metzner Jiang Feng Ying Liu 《Zoological Research》 SCIE CSCD 2026年第2期414-428,共15页
Acoustic divergence is a fundamental component of signalbased communication in animals,including humans,and has major implications for individual recognition,mate choice,and speciation.Bats have recently become an imp... Acoustic divergence is a fundamental component of signalbased communication in animals,including humans,and has major implications for individual recognition,mate choice,and speciation.Bats have recently become an important model system for investigating acoustic communication due to their structurally complex vocal repertoires.This study explored communication calls of greater horseshoe bats(Rhinolophus nippon)to determine whether geographically structured dialects occur and to identify factors associated with dialect formation.Communication calls from nine populations distributed across three regions were analyzed,and 12 syllable types shared among populations were identified.The associations of dialect differentiation with acoustic,climatic,morphological,and genetic distances,together with the influence of geographic barriers,were investigated.Results demonstrated significant acoustic variation among populations and regions for each syllable type,and this divergence was driven by diverse factors.As bats typically emit syllables in combination,all shared syllable types were subsequently analyzed as an integrated dataset.At this broader level,acoustic distance showed significant correlations with both geographic and genetic distance.Causal modeling further revealed that geographic distance and geographic barriers exerted direct effects on dialect differentiation.The sampled populations were classified into three dialect regions:Northeast,Central-East,and Southwest.The Qinling Mountains formed the boundary between the Central-East and Southwest regions.These findings provide clear evidence for the existence of dialect structure in communication calls of greater horseshoe bats and identify geographic isolation as a major force in the formation and preservation of vocal divergence.This study advances current understanding of animal acoustic evolution and offers insight into mechanisms linking vocal diversification with the generation of biological diversity. 展开更多
关键词 Acoustic divergence Dialects Geographic variation Driving forces Communication calls Bats
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Design and scale-up of 3D printed bat houses with biomass-derived polymer composites 认领 引用
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作者 Xianhui Zhao Erin Webb +10 位作者 Natalie Boggess Kitty McCracken Evin Carter Oluwafemi Oyedeji Alex Roschli Tyler Smith Soydan Ozcan Jeremy Malmstead Michael Dickerson Amy Elliott Halil Tekinalp 《Additive Manufacturing Frontiers》 CAS CSCD 2026年第1期335-345,共11页
Biomass(e.g.,pine sawdust,especially high-ash content pine sawdust)is commonly disposed of as waste.Combining biomass with polymers to make composite feedstocks for 3D printing has been explored as a method to reduce ... Biomass(e.g.,pine sawdust,especially high-ash content pine sawdust)is commonly disposed of as waste.Combining biomass with polymers to make composite feedstocks for 3D printing has been explored as a method to reduce or repurpose the biomass waste.Although not all biocomposite properties are known,the wood-based polylactic acid(PLA)composite has promising qualities for applications in ecological settings.In this work,pine wood-PLA composite feedstock was used to 3D print supplemental roost structures for endangered tree-roosting bats,which often face a paucity of suitable naturally occurring roosts.This material combination was selected because it is estimated to degrade faster than the synthetic material systems that are used widely in supplemental bat roosting structures to aid in the conservation of tree roosting bats.The layered,rough surface created by the 3D printing process serves as a surface that bats can grip while roosting.Computer-aided design(CAD)models were generated based on natural roost structures,and a full-size bat house was successfully additively manufactured using a pellet-fed large-scale 3D printing system.The 3D printed hexagon exhibited a tensile strength of 22-23 MPa and a Young’s modulus of 3202-3218 MPa in the x-direction.It has been demonstrated that the 3D printed bat house can be installed on a tree in a stable fashion.This successful demonstration of a bat roost manufactured using a bioderived composite should promote its use in other fish and wildlife structures and broader industrial applications such as construction and automobiles. 展开更多
关键词 Biomass Bio-composite Artificial habitat Bat house 3D printing Additive manufacturing
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基于外码分块编码的BATS码度优化 认领 引用
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作者 杨柳 阴慧颖 +2 位作者 马征 刘恒 王士恒 《西南交通大学学报》 EI CSCD 北大核心 2026年第1期156-166,共11页
为解决分批稀疏码(BATS码)在现有外码分块编码方案下,外码随机分批导致的数据重复译码及资源浪费问题,系统地研究基于外码分块编码方案的BATS码理论批次数优化与动态适应性问题.首先,在已知丢包率的条件下,构建BATS码批次数消耗分析模型... 为解决分批稀疏码(BATS码)在现有外码分块编码方案下,外码随机分批导致的数据重复译码及资源浪费问题,系统地研究基于外码分块编码方案的BATS码理论批次数优化与动态适应性问题.首先,在已知丢包率的条件下,构建BATS码批次数消耗分析模型,并推导得出最优度值的计算方法,以此应对现有方案在计算理论批次数以及确定最小化批次数消耗的最优度值方面所面临的挑战;其次,针对信道丢包率未知的场景,提出一种基于强化学习的BATS码动态度优化方法,借助智能学习机制,在丢包率未知的情况下实时获取度值;最后,通过仿真实验对所构建的理论模型和提出的动态优化方法进行评估.理论分析结果显示,所构建的基于外码分块的传输模型及其理论批次数计算公式能够精准计算批次数消耗并确定最优度值.仿真结果进一步证明,在丢包率未知的场景下,所提出的强化学习优化方案的平均批次数消耗低于固定度值方案,且在动态信道环境中能够保持良好的性能表现. 展开更多
关键词 分批稀疏码 分块码 传输次数 强化学习
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Experimental infection of bats with Geomyces destructans causes white-nose syndrome 认领 引用
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作者 Jeffrey M.Lorch 《四川生理科学杂志》 2026年第2期248-248,共1页
White-nose syndrome(WNS)has caused recent catastrophic declines among multiple species of bats in eastern North America.The disease's name derives from a visually apparent white growth of the newly discovered fung... White-nose syndrome(WNS)has caused recent catastrophic declines among multiple species of bats in eastern North America.The disease's name derives from a visually apparent white growth of the newly discovered fungus Geomyces destructans on the skin(including the muzzle)of hibernating bats.Colonization of skin by this fungus is associated with characteristic cutaneous lesions that are the only consistent pathological finding related to WNS.However,the role of G.destructans in WNS remains controversial because evidence to implicate the fungus as the primary cause of this disease is lacking.The debate is fuelled,in part,by the assumption that fungal infections in mammals are most commonly associated with immune system dysfunction.Additionally,the recent discovery that G.destructans commonly colonizes the skin of bats of Europe,where no unusual bat mortality events have been reported,has generated further speculation that the fungus is an opportunistic pathogen and that other unidentified factors are the primary cause of WNS. 展开更多
关键词 Immune system Fungal infection geomyces destructans Pathogenicity Opportunistic pathogen Bats cutaneous lesions White nose syndrome
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Bat algorithm based on kinetic adaptation and elite communication for engineering problems 认领 引用 被引量：1
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作者 Chong Yuan Dong Zhao +4 位作者 Ali Asghar Heidari Lei Liu Shuihua Wang Huiling Chen Yudong Zhang 《CAAI Transactions on Intelligence Technology》 SCIE EI CSCD 2025年第4期1174-1200,共27页
The Bat algorithm,a metaheuristic optimization technique inspired by the foraging behaviour of bats,has been employed to tackle optimization problems.Known for its ease of implementation,parameter tunability,and stron... The Bat algorithm,a metaheuristic optimization technique inspired by the foraging behaviour of bats,has been employed to tackle optimization problems.Known for its ease of implementation,parameter tunability,and strong global search capabilities,this algorithm finds application across diverse optimization problem domains.However,in the face of increasingly complex optimization challenges,the Bat algorithm encounters certain limitations,such as slow convergence and sensitivity to initial solutions.In order to tackle these challenges,the present study incorporates a range of optimization compo-nents into the Bat algorithm,thereby proposing a variant called PKEBA.A projection screening strategy is implemented to mitigate its sensitivity to initial solutions,thereby enhancing the quality of the initial solution set.A kinetic adaptation strategy reforms exploration patterns,while an elite communication strategy enhances group interaction,to avoid algorithm from local optima.Subsequently,the effectiveness of the proposed PKEBA is rigorously evaluated.Testing encompasses 30 benchmark functions from IEEE CEC2014,featuring ablation experiments and comparative assessments against classical algorithms and their variants.Moreover,real-world engineering problems are employed as further validation.The results conclusively demonstrate that PKEBA ex-hibits superior convergence and precision compared to existing algorithms. 展开更多
关键词 Bat algorithm engineering optimization global optimization metaheuristic algorithms
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Seasonal changes in 3D space use and foraging strategies in the avivorous bat Iaio 认领 引用
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作者 Zhi-Qiang Wang Li-Xin Gong +4 位作者 Man Si Zheng-Lanyi Huang Hui Wu Jiang Feng Ting-Lei Jiang 《Zoological Research》 SCIE CAS CSCD 2025年第6期1465-1476,I0105-I0112,共12页
To cope with seasonal changes in food availability,animals need to optimize their behaviors,including shifts in temporal activity patterns and spatial use in habitats.Most studies focused on the temporal activity patt... To cope with seasonal changes in food availability,animals need to optimize their behaviors,including shifts in temporal activity patterns and spatial use in habitats.Most studies focused on the temporal activity pattern or habitat use in two-dimensional(2D)space.However,studies on the simultaneous changes in temporal activity patterns and habitat use in three-dimensional(3D)space are limited.In this study,we used the great evening bat(Ia io)to investigate differences in the activity pattern and space use during the summer and autumn.We collected and analyzed the Global Positioning System(GPS)data and activity data obtained from accelerometers.The results showed that bats displayed seasonal variations in their movement patterns.Specifically,compared with summer,I.io individuals were found to extend their foraging duration and adopt a low-energy consumption pattern of activity in autumn.Furthermore,there was a notable increase in the vertical extent of the 3D habitat utilization range for these bats,although the 2D habitat size in autumn remained similar to that in summer.These changes manifested both temporally and spatially,potentially as a response to the reduced availability of insect resources from summer to autumn,and the arrival of migratory birds in autumn as an alternative food source.Our results suggest that I.io seasonally adjust their foraging strategies and spatial use from two to three dimensions.Our study provides important insights into the seasonal behaviour dynamics of bats during summer and autumn,which may contribute to understanding their ecological strategies and inform conservation efforts. 展开更多
关键词 Activity patterns Bats Seasonal change Space use Three-Dimensional habitat
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Optimized Deployment Method for Finite Access Points Based on Virtual Force Fusion Bat Algorithm 认领 引用
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作者 Jian Li Qing Zhang +2 位作者 Tong Yang Yu’an Chen Yongzhong Zhan 《Computer Modeling in Engineering & Sciences》 SCIE EI 2025年第9期3029-3051,共23页
In the deployment of wireless networks in two-dimensional outdoor campus spaces,aiming at the problem of efficient coverage of the monitoring area by limited number of access points(APs),this paper proposes a deployme... In the deployment of wireless networks in two-dimensional outdoor campus spaces,aiming at the problem of efficient coverage of the monitoring area by limited number of access points(APs),this paper proposes a deployment method of multi-objective optimization with virtual force fusion bat algorithm(VFBA)using the classical four-node regular distribution as an entry point.The introduction of Lévy flight strategy for bat position updating helps to maintain the population diversity,reduce the premature maturity problem caused by population convergence,avoid the over aggregation of individuals in the local optimal region,and enhance the superiority in global search;the virtual force algorithm simulates the attraction and repulsion between individuals,which enables individual bats to precisely locate the optimal solution within the search space.At the same time,the fusion effect of virtual force prompts the bat individuals to move faster to the potential optimal solution.To validate the effectiveness of the fusion algorithm,the benchmark test function is selected for simulation testing.Finally,the simulation result verifies that the VFBA achieves superior coverage and effectively reduces node redundancy compared to the other three regular layout methods.The VFBA also shows better coverage results when compared to other optimization algorithms. 展开更多
关键词 Multi-objective optimization deployment virtual force algorithm bat algorithm fusion algorithm
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Both composition and configuration of forests and urban development shape bat activity and diversity in North American temperate forests 认领 引用
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作者 Sihao Chen Han Li 《Forest Ecosystems》 SCIE CAS CSCD 2025年第5期974-986,共13页
Temperate forest ecosystems are important habitats for many bat species. However, these habitats are increasingly affected by anthropogenic disturbances, particularly urban development, leading to landscapes with vary... Temperate forest ecosystems are important habitats for many bat species. However, these habitats are increasingly affected by anthropogenic disturbances, particularly urban development, leading to landscapes with varying land cover composition and configuration. Limited research has examined how forest and urban landscape composition and configuration influence bat activity and diversity. Using a multi-year statewide bat acoustic monitoring dataset from North Carolina, USA, we investigated the effects of forest and urban composition and configuration at multiple spatial scales on bat activity and diversity. First, we constructed single-variable landscape index regression models and found that both the composition and configuration of forests and urban developments influenced bat activity and diversity in a species-specific manner. Next, we applied a hierarchical partitioning approach to compare the relative contributions of composition and configuration indices in explaining variance in bat activity. For big brown bats and hoary bats, evergreen forest and urban development composition indices contributed the most to explaining activity variance. In contrast, for eastern red bats, evening bats, and tricolored bats, deciduous forest fragmentation indices describing landscape configuration were the most influential factors. Silver-haired bat activity variance was primarily explained by an evergreen forest fragmentation index. Lastly, urban development configuration indices were the strongest predictors of Mexican free-tailed bat activity and total bat activity. These results suggest that forest and urban landscape configuration should be considered in conservation and management planning for North American temperate forest ecosystems, particularly in regions that have not experienced drastic deforestation in recent decades. 展开更多
关键词 Bats Chiroptera Composition Confguration Forests Landscape index Urban
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Discovery of Pleistocene fruit bat Rousettus and its coexisting non-volant micromammalian fossils from the Guilin Basin,South China 认领 引用
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作者 Rana Mehroz FAZAL HE Zhan-Wu +5 位作者 DU Bao-Pu CHANG Mei-Jing SHI Jing-Song NI Xi-Jun LI Qiang ZHAO Ling-Xia 《古脊椎动物学报（中英文）》 CAS CSCD 北大核心 2025年第3期173-188,共16页
In 2015,the discovery of mammalian fossils,paleolithic artifacts,and burned bones in the Maoershan Cave of the Guilin Basin,northeastern Guangxi,indicated that it is a late Middle Pleistocene Paleolithic site.In 2021,... In 2015,the discovery of mammalian fossils,paleolithic artifacts,and burned bones in the Maoershan Cave of the Guilin Basin,northeastern Guangxi,indicated that it is a late Middle Pleistocene Paleolithic site.In 2021,stratigraphic sectioning and the systematic screening of small mammal sand samples were conducted.This paper presents a comprehensive account of the new material of the fruit bat Rousettus leschenaultii,accompanied by a concise overview of the non-volant micromammals that coexisted with it in the Quaternary sediments of the Maoershan Cave.This finding marks the second occurrence of fruit bat fossils in China,contributing to our understanding of the dental morphology and past geographical distribution of Rousettus.The micromammalian assemblage of the Maoershan Cave is composed of 3 orders,9 families,26 genera,and 30 species,and exhibits notable similarities with those of the late Middle Pleistocene Yumi Cave,Xinglong Cave,Yanhui Cave,Mawokou Cave,Zhongliangshan,and Chuan Cave faunas.The biochronology of the micromammalian assemblage from the Maoershan Cave has been determined to be consistent with the late Middle Pleistocene,providing a new assemblage in the Pleistocene mammalian faunal sequence in southern China.The presence of abundant oriental forested elements indicates that the Guilin Basin used to be a humid and warm subtropical forest paleoenvironment similar to the contemporary environment during the late Middle Pleistocene. 展开更多
关键词 Guilin Basin late Middle Pleistocene fruit bat micromammalian assemblage biostratigraphy paleoenvironment
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Bat ear repair using cartilage scoring technique versus cartilage excision technique 认领 引用
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作者 Mohamed Salama Bilal Ahmad Mohamed Amin 《Chinese Journal of Plastic and Reconstructive Surgery》 2025年第4期209-216,共8页
Background:Bat ear is a congenital condition that can have psychological effects on patients and is readily correctable,often yielding highly satisfactory outcomes for both patients and surgeons.It is crucial to selec... Background:Bat ear is a congenital condition that can have psychological effects on patients and is readily correctable,often yielding highly satisfactory outcomes for both patients and surgeons.It is crucial to select appropriate techniques in the surgical plan to ensure optimal outcomes.This study aimed to compare the outcomes of otoplasty using the cartilage scoring technique versus the cartilage excision technique for correcting the antihelix.Methods:Twenty patients were divided into two groups:group A underwent the cartilage scoring technique,and group B received the cartilage excision technique.Symmetry,satisfaction,and complications were evaluated and compared between the groups.A visual analog score(VAS)was used to assess the perceived symmetry and satisfaction in both groups.Results:Group A(cartilage scoring technique)demonstrated excellent postoperative symmetry,with a total symmetry score of 96/100 on cartilage grading.In group B,6 of the 10 individuals reported high satisfaction(score:10/10 points on VAS),whereas the remaining 4 reported moderate satisfaction(score:5–9/10 points).The total symmetry score in group B(cartilage excision technique)was 92/100,which was lower than that in group A.No relapses in angle measurements were observed in group A.In contrast,group B showed six average and four slightly overcorrected angle measurements.In group B,the postoperative measures were less satisfactory.Angle measurements were average angles in four cases,and somewhat overcorrected in six.Regarding the helix-to-mastoid distance,three cases were within the average range,whereas seven were slightly overcorrected.No relapses were observed in either group.Concerning complications,we employed minus scoring to measure all complications.Group A had a negative score of19,whereas group B had24.Conclusion:The outcomes were highly satisfactory for patients and surgeons treated using the cartilage scoring technique,and relatively less satisfactory for patients and surgeons treated using the cartilage excision technique. 展开更多
关键词 Otoplasty Bat ear Antihelix Cephaloauricular angle Helix-to-mastoid distance
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Swift BAT硬X射线的RMS-Flux关系及流量分布研究 认领 引用
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作者 王亮 易庭丰 +1 位作者 王娜 张顺 《玉溪师范学院学报》 2025年第3期49-55,共7页
聚焦于Neil Gehrels Swift天文台的爆发警报望远镜(BAT)所发布的157个月硬X射线数据,深入探究了赛弗特活动星系核(SeyfertⅠ型和SeyfertⅡ型)、相对论性喷流活动星系核(Beamed AGN,包括Blazar和FSRQs)以及未定类型活动星系核(Unknown A... 聚焦于Neil Gehrels Swift天文台的爆发警报望远镜(BAT)所发布的157个月硬X射线数据,深入探究了赛弗特活动星系核(SeyfertⅠ型和SeyfertⅡ型)、相对论性喷流活动星系核(Beamed AGN,包括Blazar和FSRQs)以及未定类型活动星系核(Unknown AGN)的RMS-Flux的线性关系及其分布特征.研究过程中,首先对这4类活动星系核(AGNs)的硬X射线光变曲线进行分段处理,进而对RMS-Flux进行线性拟合.结果表明,各类AGNs均存在着较好的RMS-Flux线性关系.其中,Beamed AGN和SeyfertⅡ型的线性关系最为显著,SeyfertⅠ型次之,Unknown AGN相对较弱.研究推测,这一差异源于不同的辐射过程与机制,例如喷流、尘埃环以及吸积盘的冕,它们对硬X射线的调制程度各不相同.此外,针对4类AGNs光变曲线数据的流量分布,采用高斯函数和对数正态函数进行拟合,并开展Kolmogorov-Smirnov检验(K-S检验)、正态性检验(norm检验)以及卡方检验(Chi-Square检验).统计拟合结果显示:其流量分布更符合正态分布,这可能是由于BAT观测误差增强了流量分布的正态性. 展开更多
关键词 RMS-Flux 活动星系核 Swift BAT 硬X射线
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结合蝙蝠算法和紧密度改进的三支K-means算法 认领 引用 被引量：1
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作者 孙清 叶军 +2 位作者 曾广财 宋苏洋 汪一心 《山东大学学报（理学版）》 CAS CSCD 北大核心 2026年第1期65-75,共11页
本文结合蝙蝠算法和紧密度改进三支K-means算法,利用黄金分割系数和种群平均位置优化蝙蝠算法,根据优化后的蝙蝠算法搜索初始聚类中心,提高三支K-means算法的稳定性。依据紧密度判断核心域和边界域的阈值,减少边界域样本数量,提高三支K-... 本文结合蝙蝠算法和紧密度改进三支K-means算法,利用黄金分割系数和种群平均位置优化蝙蝠算法,根据优化后的蝙蝠算法搜索初始聚类中心,提高三支K-means算法的稳定性。依据紧密度判断核心域和边界域的阈值,减少边界域样本数量,提高三支K-means算法的准确性。对比实验采用9个数据集与6种聚类算法,实验结果表明本文算法提升聚类性能,验证本文算法有效性和实用性。 展开更多
关键词 K-means聚类 蝙蝠算法 紧密度 K-means算法 三支决策
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基于切比雪夫对立的二进制蝙蝠算法的特征选择多目标优化生物启发式方法 认领 引用 被引量：1
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作者 康辉 段寒 +4 位作者 陶依 李家辉 王渤雄 肖沛琳 宋莘炎 《吉林大学学报（工学版）》 EI CAS CSCD 北大核心 2026年第5期1363-1370,共8页
设计了一个多目标优化函数以共同优化分类准确率和所选特征的数量,并通过线性加权方法构建了一个单目标适应度函数。提出了一种切比雪夫对立二进制蝙蝠算法(COBBA)以缓解蝙蝠算法(BA)在优化中的种群多样性不足对最优解质量的影响,从而... 设计了一个多目标优化函数以共同优化分类准确率和所选特征的数量,并通过线性加权方法构建了一个单目标适应度函数。提出了一种切比雪夫对立二进制蝙蝠算法(COBBA)以缓解蝙蝠算法(BA)在优化中的种群多样性不足对最优解质量的影响,从而提高特征选择的性能。具体地,本文使用混沌映射生成混沌序列以确保初始解的多样性,而后采用对立学习技术进一步优化初始解,最后通过使用切比雪夫多项式调整参数提高最优解的质量。仿真实验在15个经典数据集上进行,结果表明:COBBA在平均适应度、分类准确率和所选特征数量方面优于各类常用的群体智能算法。 展开更多
关键词 多目标优化 特征选择 群体智能算法 蝙蝠算法
浙江省衢州市栖息蝙蝠肠道组织病毒的调查研究 认领 引用
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作者 王双青 方春福 +3 位作者 曹国平 吕磊 王琪 占炳东 《中国媒介生物学及控制杂志》 CAS CSCD 2026年第1期110-116,共7页
目的了解浙江省衢州地区栖息蝙蝠肠道组织携带病毒情况,为制定本地区公共卫生策略提供科学依据。方法2023年8-10月在衢州市6个采样点捕获167只蝙蝠,经鉴定94只为中华菊头蝠,73只为大蹄蝠,解剖并获取蝙蝠直肠(含粪便)样本。6个采样点均... 目的了解浙江省衢州地区栖息蝙蝠肠道组织携带病毒情况,为制定本地区公共卫生策略提供科学依据。方法2023年8-10月在衢州市6个采样点捕获167只蝙蝠,经鉴定94只为中华菊头蝠,73只为大蹄蝠,解剖并获取蝙蝠直肠(含粪便)样本。6个采样点均随机取24只蝙蝠肠道样本50µg混合成1份样本,使用AllPrep Power Viral DNA/RNA试剂盒提取DNA和RNA,建立rRNA去除后的RNA转录组文库和DNA宏基因组文库。对提取的核酸样本进行Illumina测序,使用fastp 0.23.2获得高质量数据,利用软件Centrifuge 1.0.4、Bowtie22.5.1和SortMeRNA 4.3.6从高质量数据中获取携带病毒的核酸序列,metaSPAdes 3.15.5进行拼接组装后使用BLASTn 2.14.0和DIAMOND Blastx 2.1.8.162分别比对病毒核苷酸库和氨基酸库进行注释。采用R studio 4.3.3.3软件的Vegan包进行α多样性分析,采用主坐标分析(PCoA)进行β多样性分析,使用pheatmap包进行丰度分析。采用R studio 4.3.3.3软件进行Welch's t检验、Mann-Whitney U检验、Kruskal-Wallis H检验、Dunn's检验和置换多元方差分析,比较中华菊头蝠组与大蹄蝠组的病毒携带差异。结果对蝙蝠肠道组织样本进行Illumina测序分析,获得RNA病毒组13522~187260条序列,注释得到25个RNA病毒科。获得DNA病毒组105553~177241条序列,注释得到35个DNA病毒科。在RNA和DNA病毒种水平上,中华菊头蝠较大蹄蝠均具有较高的α多样性,但Welch's t检验显示差异无统计学意义(RNA病毒种水平Shannon值数:t=2.093,P=0.110;Simpson指数:t=2.121,P=0.129;DNA病毒种水平Shannon指数:t=1.356,P=0.247;Simpson指数:t=1.585,P=0.215);Bray-Curtis距离在RNA和DNA病毒组的组间差异均无统计学意义(RNA病毒组:F=2.305,R2=0.366,P=0.188;DNA病毒组:F=1.437,R2=0.264,P=0.175);反转录病毒科在中华菊头蝠组的丰度明显高于大蹄蝠组(U=2.004,P=0.002),丝核病毒科的丰度在不同样本间总体差异有统计学意义(H=10.301,P=0.035),龙游县蝙蝠样本中的丰度明显低于其他县(市、区)样本(均P<0.05)。结论浙江省衢州市蝙蝠肠道病毒群落多样性丰富。中华菊头蝠和大蹄蝠在RNA与DNA病毒携带种类数无明显差异,其RNA病毒组群落结构呈现明显的按宿主物种聚类,而DNA病毒组则无此规律。 展开更多
关键词 蝙蝠 Illumina测序 病毒 肠道
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基于多源信号融合与BA−SMO的矿山带式输送机故障智能诊断研究 认领 引用 被引量：1
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作者 李忠飞 刘鹏飞 +4 位作者 孙艳辉 王闯 谭胜虎 马双 张云鹤 《工矿自动化》 CSCD 北大核心 2026年第2期81-90,共10页
目前矿山带式输送机故障诊断研究主要集中在单一信号检测、传统算法建模、多特征融合3个方向。基于振动、电流等单一信号的诊断方法易出现特征提取偏差、诊断结果可靠性不足等问题;部分优化算法存在参数寻优效率低的问题,且对多故障类... 目前矿山带式输送机故障诊断研究主要集中在单一信号检测、传统算法建模、多特征融合3个方向。基于振动、电流等单一信号的诊断方法易出现特征提取偏差、诊断结果可靠性不足等问题;部分优化算法存在参数寻优效率低的问题,且对多故障类型的适配性较差;多特征融合研究缺乏针对性,无法实现多维度信号的互补验证。针对上述问题,提出了一种基于多源信号融合与蝙蝠算法(BA)优化序列最小优化(SMO)算法参数(BA−SMO)的矿山带式输送机故障智能诊断方法。构建了振动−温度−烟雾多源信号协同采集系机制,采用线性趋势去除法与改进卡尔曼滤波完成信号降噪预处理;提出了引入自适应惩罚因子与冗余分量剔除机制的改进变分模态分解(VMD)算法,结合多尺度样本熵实现故障特征的精准量化提取;基于提取的多维度特征向量,构建BA−SMO,通过BA的全局寻优能力优化SMO的核心参数,提升模型的分类精度与环境适应性。实验结果表明:①改进VMD算法的信噪比达27 dB,均方根误差(RMSE)及平均绝对误差(MAE)稳定在0.08以下,在信号分解精度、效率及故障特征频率匹配度上均有显著优势,能够精准分离矿山带式输送机多类型故障的特征频率。②BA−SMO对各类故障的识别准确率较高,轴承内圈故障的识别准确率接近100%,托辊打滑故障的识别准确率在90%以上。③BA−SMO在低、中、高干扰工况下的平均识别准确率依次为99.2%,97.6%,95.3%,漏判率均低于5%,平均识别耗时仅32.6 ms。现场应用结果表明:在为期3个月的现场应用中,所提方法成功识别轴承内圈点蚀、托辊打滑、滚动体磨损等各类故障,诊断准确率为97.8%,较传统人工巡检方法提升25.3%,有效降低了故障漏判率与误判率。 展开更多
关键词 带式输送机 故障诊断 多源信号融合 蝙蝠算法 优化序列最小优化算法 混合核函数 BA−SMO
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Two phases of early Palaeozoic magmatism at the Wude area in the western Bainaimiao arc(Inner Mongolia,China):Petrogenesis and tectonic implications 认领 引用
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作者 Cong Ding Zhicheng Zhang +4 位作者 Yunxi Meng Jianzhou Tang Qi Wang Huaihui Zhang Baofu Han 《Acta Geochimica》 EI CAS CSCD 2026年第3期467-488,共22页
Arc magmatism plays a crucial role in constraining the tectonic evolution of orogenic belts.This study focuses on two phases(Phase Ⅰ and Ⅱ)of the Early Palaeozoic intrusive rocks in the Wude area,located in the west... Arc magmatism plays a crucial role in constraining the tectonic evolution of orogenic belts.This study focuses on two phases(Phase Ⅰ and Ⅱ)of the Early Palaeozoic intrusive rocks in the Wude area,located in the western Bainaimiao arc terrane(BAT),southeastern Central Asian Orogenic Belt.We performed whole-rock geochemistry,zircon U-Pb chronology,and Hf isotope,amphibole geochemical analyses.PhaseⅠcomprises granites and quartz diorites with zircon U-Pb age range from 464 to 457 Ma.These rocks are medium-to high-K calc-alkaline,fractionated Ⅰ-type granites exhibiting an arc-like geochemical signature,such as enrichments in Rb,Ba,Th,U,Pb,and Sr and depletions in Nb,Ta,Ti,and P.Phase Ⅱ intrusive rocks consist of congeneric hornblendites,diorites,plagioclase porphyrite,and granite porphyry,with zircons U-Pb ages from 446 to 442 Ma and positive εHf(t)values(+1.50 to+13.39).These rocks display island arc magma compositions characterized by enrichments in large-ion lithophile elements(e.g.,Ba,U,Pb,and Sr)and depletions in high-field-strength elements(e.g.,Nb,Ta,Zr,Hf,and Ti).Amphiboles from the hornblendites and diorites in the Wude area are classified as magnesio-hornblendes,indicating crystallization temperatures of 702.5-763.6℃,depths of 13.3-19.1 km(based on TiO2 contents),and REDOX conditions of ΔNNO+0.52 to 1.55.The positive zircon εHf(t)values and calculated crystallization pressures of 3.09-4.95 Kbar(13.3-19.1 km)support the formation of cumulate hornblendites and diorites in a juvenile island arc setting within the middle crust.These findings provide insights into the tectonic and paleogeographic evolution of the western Bainaimiao Arc during the Early Palaeozoic.Geochronological and geochemical data suggest a tectonic transition occurred between Phase Ⅰ and Phase Ⅱ.Based on the age of the ophiolitic mélange and previous works,this transition may reflect a shift from a south-dipping subduction of the Paleo-Asian Ocean to a north-dipping subduction of the southern Bainaimiao Ocean. 展开更多
关键词 Central Asian Orogenic Belt(CAOB) Bainaimiao arc terrane(BAT) Arc magmatism Cumulate hornblendite Tectonic transition
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四川翼手类一新纪录——菲氏管鼻蝠 认领 引用
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作者 黄泰涵 傅晓雪 +8 位作者 李健 王涛 刘昊 张炼 蒋夏威 李雪 凌征文 张泽钧 石红艳 《兽类学报》 CAS CSCD 北大核心 2026年第3期453-462,共10页
管鼻蝠属(Murina)隶属于翼手目(Chiroptera)蝙蝠科(Vespertilionidae),鼻孔突出呈短管状为该属的典型特征。目前全世界已知的管鼻蝠属物种有42种(Wilson and Mittermeier,2019;Yu et al.,2020;Mou et al.,2024;Wang et al.,2024),我国... 管鼻蝠属(Murina)隶属于翼手目(Chiroptera)蝙蝠科(Vespertilionidae),鼻孔突出呈短管状为该属的典型特征。目前全世界已知的管鼻蝠属物种有42种(Wilson and Mittermeier,2019;Yu et al.,2020;Mou et al.,2024;Wang et al.,2024),我国现发现有23种(魏辅文等,2022;Mou et al.,2024;Wang et al.,2024),其中四川有金管鼻蝠(M.aurata)、金毛管鼻蝠(M.chrysochaetes)、梵净山管鼻蝠(M.fanjingshanensis)、锦矗管鼻蝠(M.jinchui)、白腹管鼻蝠(M.leucogaster)5种(刘少英等,2023)。菲氏管鼻蝠(M.feae)为体型较小的管鼻蝠,是Thomas(1891)依据Signor在缅甸KarinHills采集的标本描述的物种。目前,该物种在国外还分布于泰国、老挝、越南、柬埔寨,印度东北部可能也有其分布(Wilson and Mittermeier,2019);国内分布于广西、贵州、广东、江西、云南和福建(张欣等,2021;魏辅文等,2022;黄泽锋等,2023)。 展开更多
关键词 翼手目(蝙蝠) 菲氏管鼻蝠 四川省 新纪录
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BATTLE富士达车队正式成立 认领 引用
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《中国自行车》 2025年第2期7-7,共1页
在自行车赛事的激情赛道上,一支全新的劲旅--BATTLE富士达车队,正式开启了追逐荣耀的征程。这支车队的组建,源于一群对自行车赛事怀揣炽热梦想的勇士。他们中,有在业余赛事中屡获佳绩、渴望迈向更高舞台的老将--凭借丰富的实战经验,能... 在自行车赛事的激情赛道上,一支全新的劲旅--BATTLE富士达车队,正式开启了追逐荣耀的征程。这支车队的组建,源于一群对自行车赛事怀揣炽热梦想的勇士。他们中,有在业余赛事中屡获佳绩、渴望迈向更高舞台的老将--凭借丰富的实战经验,能在复杂多变的赛况中精准洞察局势;也有初出茅庐却天赋异禀的年轻车手--带着无畏的冲劲和无限的潜力,立志在赛场上一鸣惊人。BATTLE富士达车队由6男、4女组成,征战公路及山地赛事组。为了保障车队在赛场上的卓越表现,富士达配备了专业的后勤团队,为车手们的拼搏之路保驾护航。BATTLE富士达车队以“速度决胜、策略领航、团队至上”为核心理念,剑指各大自行车赛事。 展开更多
关键词 自行车赛 实战经验 BAT 车队 赛事 TLE 保驾护航 团队
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结合响应面与蝙蝠算法的核电管系模型修正 认领 引用
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作者 俞树荣 马子睿 +1 位作者 薛睿渊 李勇铜 《机械设计与制造》 北大核心 2026年第3期45-50,共6页
在工程实际中,由于各种因素影响,核电阀门管道系统与有限元模型之间普遍存在偏差,使有限元分析结果与实际有误差。针对目前没有适用于核电阀门管道系统较为高效的有限元模型修正方法,提出了结合响应面法与蝙蝠优化算法的有限元模型修正... 在工程实际中,由于各种因素影响,核电阀门管道系统与有限元模型之间普遍存在偏差,使有限元分析结果与实际有误差。针对目前没有适用于核电阀门管道系统较为高效的有限元模型修正方法,提出了结合响应面法与蝙蝠优化算法的有限元模型修正方法。该方法以固有频率为特征值建立实际结构与有限元模型的误差函数,引入响应面模型来代替有限元模型提升每次迭代的计算速度,利用在连续性优化问题中搜索最优值速度较快的蝙蝠算法进行参数寻优,通过六自由度弹簧—质量系统证明了所提出方法的可行性。 展开更多
关键词 模型修正 响应面法 核电阀门管道系统 蝙蝠算法
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