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Bats as the main prey of wintering long-eared owl(Asio otus)in Beijing:Integrating biodiversity protection and urban management

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Integrative Zoology 2015年第2期10卷 216-226页

作者： Long TIAN Xuwei ZHOU Yang SHI Yumin GUO weidong bao Department of Zoology Beijing Forestry University College of Nature Conservation Beijing Forestry UniversityBeijingChina Beijing Wildlife Rescue and Rehabilitation Center BeijingChina

The loss of biodiversity from urbanized areas is a major environmental problem challenging policy-makers throughout the *** to this problem are urgently required in *** carried out a case study of wintering long-eared owls(Asio otus)and their main prey to illustrate the negative effects of urbanization combined with ineffective conservation of biodiversity in *** monitoring of owl numbers at two roosting sites from 2004 to 2012 showed that the owl population had fallen rapidly in metropolitan *** of pellet contents identified only seven individuals of two species of *** majority of mammalian prey comprised four bat and seven rodent species,making up 29.3%and 29.5%of the prey items,*** composition varied significantly among years at the two sample *** the urban site the consumption of bats and rodents declined gradually over time,while predation on birds *** contrast,at the suburban site the prey composition showed an overall decrease in the number of bats,a sharp increase and a subsequent decrease in bird prey,and the number of rodent prey fell to a low *** development of real estate and inadequate greenfield management in city parks resulted in negative effects on the bird and small mammal habitat of urban areas in *** suggest that measures to conserve biodiversity should be integrated into future urban planning to maintain China’s rich biodiversity while also achieving sustainable economic development.

关键词： biodiversity reduction city planning diet composition long-eared owl urbanization

SUNDER:Self-organized grouping and entrapping method for swarms in multitarget environments

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Defence Technology（防务技术） 2023年第8期26卷 68-83页

作者： Yutong Yuan Zhun Fan Xiaomin Zhu Li Ma Ji Ouyang weidong bao Ji Wang Zhaojun Wang College of Systems Engineer National University of Defense TechnologyChangsha 410073China School of Electrical and Information Engineering Shantou UniversityShantou 515063China Strategic Assessments and Consultation Institute Academy of Military ScienceBeijing 100097China

For swarm robots moving in a harsh or uncharted outdoor environment without GPS guidance and global communication,algorithms that rely on global-based information are ***,traditional gene regulatory networks(GRNs)that achieve superior performance in forming trapping pattern towards targets require accurate global positional information to guide swarm *** article presents a gene regulatory network with Self-organized grouping and entrapping method for swarms(SUNDER-GRN)to achieve adequate trapping performance with a large-scale swarm in a confined multitarget environment with access to only local information.A hierarchical self-organized grouping method(HSG)is proposed to structure subswarms in a distributed *** addition,a modified distributed controller,with a relative coordinate system that is established to relieve the need for global information,is leveraged to facilitate subswarms entrapment toward different targets,thus improving the global multi-target entrapping *** results demonstrate the superiority of SUNDERGRN in the performance of structuring subswarms and entrapping 10 targets with 200 robots in an environment confined by obstacles and with only local information accessible.

关键词： Swarm robots Local information Gene regulatory network Swarm grouping Trapping pattern Confined multitarget environment

Distribution of YAP in 10 populations of China

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Chinese Science Bulletin 1998年第12期43卷 1023-1025页

作者： Xu Liping Xu Jiujin Zhu Suling bao weidong Du Ruofu Chinese Acad Sci Inst Genet Beijing 100101 Peoples R China

The Y_chromosome Alu polymorphism was studied in 10 populations in China. The Alu insertion is present in 54/571 individuals (9%). Among 10 populations, the frequency of YAP element is quite high (49%) in the Tibetans and at moderate or low levels (15%-4%) in the Yi, Hui and Uygur. The Alu insertion is absent in the Han in Guangdong and Shaanxi, and in the Manchu and Zhuang, while a single Tujia individual and a single Yao individual are found to have the Alu insertion.

关键词： Chinese populations Y chromosome Alu genetic polymorphism.

Construction and clinical significance of a predictive system for prognosis of hepatocellular carcinoma

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World Journal of Gastroenterology 2005年第20期11卷 3027-3033页

作者： JunCui bao-weidong PingLiang Xiao-LingYu De-JiangYu DepartmentofUltrasound ChinesePLAGeneralHospital

AIM: The aims of this study were to explore individualized treatment method for hepatocellular carcinoma (HCC) patients whose maximum tumor size was less than 5 cm to improve prognosis and survival quality. METHODS: Thirty cases of primary HCC patients undergoing tumor resection were retrospectively analyzed (resection group). All the tumors were proved as primary HCC with pathologic examination. The patients were divided into two groups according to follow-up results: group A, with tumor recurrence within 1 year after resection; group B, without tumor recurrence within 1 year. Immunohist-ochemical stainings were performed using 11 kinds of monoclonal antibodies (AFP, c-erbB2, c-met, c-myc, HBsAg, HCV, Ki-67, MMP-2, nm23-H1, P53, and VEGF), and expressing intensities were quantitatively analyzed. Regression equation using factors affecting prognosis of HCC was constructed with binary logistic method. HCC patients undergoing percutaneous microwave coagulation therapy (PMCT) were also retrospectively analyzed (PMCT group). Immunohistochemical stainings of tumor biopsy samples were performed with molecules related to HCC prognosis, staining intensities were quantitatively analyzed, coincidence rate of prediction was calculated. RESULTS: In resection group, the expressing intensities of c-myc, Ki-67, MMP-2 and VEGF in cancer tissue in group A were significantly higher than those in group B (t = 2.97, P= 0.01; t = 2.42, P= 0.030.05). The regression equation predicting prognosis of HCC is as follows: P(1) = 1/[1+e-(3.663-0.412mycc-2.187kl-67c-0.397vegfc)]. It demonstrates that prognosis of HCC in resection group was related with c-myc, Ki-67 and VEGF expressing intensity in cancer tissue. In PMCT group, the expressing intensities of c-myc, Ki-67 and VEGF in cancer ti

关键词： Hepatocellular carcinoma Prognosis Prediction

Effect of c-myc,Ki-67,MMP-2 and VEGF expression on prognosis of hepatocellular carcinoma patients undergoing tumor resection

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World Journal of Gastroenterology 2004年第10期10卷 1533-1536页

作者： JunCui bao-weidong PingLiang Xiao-LingYu De-JiangYu DepartmentofUltrasound ChinesePLAGeneralHospitalBeijing100853China

AIM: To explore the effect of c-myc, Ki-67, MMP-2 and VEGF expression on prognosis of hepatocellular carcinoma (HCC) patients undergoing tumor ***: Primary HCC patients underwent tumor resection were retrospectively analysed. The maximum size of the tumor was less than 5 cm, there was only one nodule in each patient. No chemoembolization was performed before resection. They were followed up after resection, and the time of recurrence was recorded. They were divided into 2 groups: group A (15 cases): tumor recurrence within 1 year after tumor resection, and group B (15 cases):with or without tumor recurrence 2 years after tumor resection. Pathological slices were made with tumor waxsample. Immunohistochemistry staining was performed with c-myc, Ki-67, MMP-2 and VEGF monoclonal *** intensity was quantitatively analysed with a pathological diagram-writing analyzing system. The expressing intensity differences of stained molecules in cancer tissue and para-cancer were ***: c-myc, Ki-67, MMP-2 and VEGF expressing intensities in cancer tissue in group A were higher than those in group B (Pvalues were 0.010, 0.030, 0.022 and 0.004, respectively), but they were not significantly different in para-cancer tissue in groups A and B (Pvalues were 0.334, 0.343, 0.334 and 0.334, respectively).CONCLUSION: The expression of c-myc, Ki-67, MMP-2 and VEGF in cancer tissue is related to the recurrence of HCC after tumor resection.

关键词：肝细胞癌肿瘤切除术预后肿瘤标志物

Genomic structure of metabotropic glutamate receptor 7 and comparison of genomic structures of extracellular domains of mGluR family

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Chinese Science Bulletin 2002年第16期47卷 1330-1336页

作者： Qingfa Wu Wei Dong Xiaohua Qi weidong bao Yuxin Niu Yiling Zhang Haiqing Zhang Chong Chen Bin Liu Songnian Hu et al. Chinese Acad Sci Inst Genet Beijing Gen Inst Ctr Human Genome Beijing 100101 Peoples R China

Metabotropic glutamate receptor 7, coupled with a chemical neurotransmitter L-glutamate, plays an important role in the development of many psychiatric and neurological disorders. To study the biological and genetic mechanism of the mGluR7-related diseases, a physical map covering the full-length mGluR7 genomic sequence has been constructed through seed clone screening and fingerprinting database searching. These BAC clones in the physical map have been sequenced with shotgun strategy and assembled by Phred-Phrap-Consed software; the error rate of the final genoniic sequence is less than 0.01%. mGluR7 spans 880 kb genoniic region, the GC content and repeat content of mGluR7 genoniic sequence are 38% and 37.5% respectively. mGluR7 has a typical 'house-keeping' promoter and consists of 11 exons, with introns ranging from 6 kb to 285 kb. mGluR7a and mGluR7b are two known alternatively splicing variants. Comparing the genomic structures of extracellular domains of mGluR family, their genomic structures can

关键词： metabotropic glutamate receptor physical map genome exon intron extracellular domain.

基于编-解码器结构的无人机群多任务联邦学习

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西南交通大学学报 2024年第4期59卷 933-941页

作者：周敬轩包卫东王吉张大宇国防科技大学大数据与决策实验室湖南长沙410073

针对传统联邦学习在无人机群应用中的局限性——要求所有参与者执行相同任务并拥有相同的模型结构,本文探索一种适用于无人机群的多任务联邦学习方法,设计一种新的编-解码器架构,以加强执行不同任务的无人机之间的知识共享.首先,为执行... 详细信息

针对传统联邦学习在无人机群应用中的局限性——要求所有参与者执行相同任务并拥有相同的模型结构,本文探索一种适用于无人机群的多任务联邦学习方法,设计一种新的编-解码器架构,以加强执行不同任务的无人机之间的知识共享.首先,为执行相同任务的无人机建立直接的知识分享机制,通过直接聚合方式实现同任务知识的有效融合;其次,对于执行不同任务的无人机,从所有无人机的编-解码器架构中提取编码器部分,构建一个全局编码器;最后,在训练环节,将本地编码器和全局编码器的信息整合到损失函数中,并通过迭代更新使本地解码器逐步逼近全局解码器,从而实现跨任务间的知识高效共享.实验结果表明:相较于传统方法,所提出的方法使无人机群在3个单任务上的性能分别提升1.79%、0.37%和2.78%,仅在1个任务上性能略微下降0.38%,但整体性能仍提升2.38%.

关键词：多任务学习无人机群联邦学习编-解码器结构

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一种面向云边端系统的分层异构联邦学习方法

计算机研究与发展 2022年第11期59卷 2408-2422页

作者：钟正仪包卫东王吉吴冠霖赵翔国防科技大学大数据与决策实验室长沙410003 军事科学院北京100089

联邦学习(federated learning)通过用上传模型参数的方式取代了数据传输,降低了隐私泄露的风险.然而,将联邦学习应用到云边端框架下时,一方面,由于云边端存在边缘和终端两层分布式框架,对传统的单层联邦学习提出挑战;另一方面,终端节点... 详细信息

联邦学习(federated learning)通过用上传模型参数的方式取代了数据传输,降低了隐私泄露的风险.然而,将联邦学习应用到云边端框架下时,一方面,由于云边端存在边缘和终端两层分布式框架,对传统的单层联邦学习提出挑战;另一方面,终端节点因资源异构难以训练相同复杂度的模型,无法满足联邦学习客户端统一模型的假设.针对上述第1个问题,从传统的单层联邦学习方法出发,设计了面向云边端分层部署模型的联邦学习方案;针对第2个问题,通过在终端模型插入分支的方式,将大模型拆分为不同复杂度的小模型适配不同客户端资源状态,从而实现异构联邦学习.同时,考虑到终端存在大量无标签数据无法进行有效模型训练的问题,还提出了针对联邦框架的半监督学习方法,实现对无标签数据的有效利用.最终,通过MNIST和FashionMNIST数据集对方法进行了验证.实验结果表明,在有效避免隐私泄露的前提下,相比于其他同构和异构学习方法,所提方法最大可提升22%的模型准确率;在计算、通信、存储等资源开销上均有明显降低.

关键词：联邦学习隐私安全资源异构云边端半监督学习

面向动态目标搜索与打击的空地协同自主任务分配方法

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系统工程与电子技术 2024年第7期46卷 2346-2358页

作者：费博雯包卫东刘大千朱晓敏国防科技大学系统工程学院湖南长沙410073

面向复杂城市环境中的运动目标搜索与打击任务,单域无人平台受视野范围和运动能力等限制,易出现目标遗漏和任务完成率低的问题。针对这些问题,提出一种面向动态目标搜索与打击的空地协同自主任务分配方法,通过结合无人机视野范围广以及... 详细信息

面向复杂城市环境中的运动目标搜索与打击任务,单域无人平台受视野范围和运动能力等限制,易出现目标遗漏和任务完成率低的问题。针对这些问题,提出一种面向动态目标搜索与打击的空地协同自主任务分配方法,通过结合无人机视野范围广以及无人车机动性强的特点,提升空地无人系统的任务执行效率和区域覆盖率。一方面,针对未知运动目标,提出一种基于数字信息素的目标搜索模型,以平台协同收益和区域覆盖率为优化指标,保证在尽可能短的时间周期内发现区域中的所有目标。另一方面,面向动态到达的打击任务,构建基于可行路径规划的任务分配模型,以平台能耗和任务完成时间为目标函数,在保证任务完成率的同时,提高空地协同系统的资源利用率。与现有方法相比,所提方法能够在最短的时间内发现所有目标,区域覆盖率达到55%以上,且资源利用率为84.4%。实验结果表明,所提方法具备较好的目标搜索和任务执行能力。

关键词：空地协同数字信息素目标搜索任务分配路径规划