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Biodiversity as a Major Role in Human Ecology

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生物多样性 1994年第B11期2卷 1-8页

作者： wu zhengyi Kunming Institute of Botany Chinese Academy of Sciences

Ant colony optimization for bearings-only maneuvering target tracking in sensors network

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控制理论与应用（英文版） 2007年第3期5卷 301-306页

作者： Benlian XU Zhiquan WANG zhengyi wu Department of Information and Control Engineering Changshu Institute of Technology Changshu Jiangsu 215500 China School of Automation Nanjing University of Science and Technology Nanjing Jiangsu 210094 China

In this paper, the problem of bearings-only maneuvering target tracking in sensors network is investigated. Two objectives are proposed and optimized by the ant colony optimization （ACO）, then two kinds of node searching strategies of the ACO algorithm are presented. On the basis of the nodes determined by the ACO algorithm, the interacting multiple models extended Kalman filter （IMMEKF） for the multi-sensor bearings-only maneuvering target tracking is introduced. Simulation results indicate that the proposed ACO algorithm performs better than the Closest Nodes method. Furthermore, the Strategy 2 of the two given strategies is preferred in terms of the requirement of real time.

关键词： Ant colony algorithm Multi-objective optimization Maneuvering target tracking Bearings-only

Origin and differentiation of endemism in the flora of China

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Frontiers in Biology 2007年第2期2卷 125-143页

作者： wu zhengyi SUN Hang ZHOU Zhekun PENG Hua LI Dezhu Key Laboratory of Biodiversity and Biogeography Kunming Institute of BotanyChinese Academy of SciencesKunming 650204China

The present paper analyzed 239 endemic genera in 67 families in the flora of seed plants in *** results showed that there are five families containing more than ten endemic genera,namely,Gesneriaceae(27),which hereafter refers to the number of endemic genera in China,Composite(20),Labiatae(12),Cruciferae(11),and Umbelliferae(10),15 families with two endemic genera,and another 30 families with only one endemic *** monotypic families(Ginkgoaceae,Davidiaceae,Eucommiaceae and Acanthochlamydaceae)are the most ancient,relict and characteristic in the flora of seed plants in *** on integrative data of systematics,fossil history,and morphological and molecular evidence of these genera,their origin,evolution and relationships were *** gymnosperms,all endemic genera are relicts of the Arctic-Tertiary flora,having earlier evolutionary history,and can be traced back to the Cretaceous or to the Jurassic and even *** angiosperms,the endemic genera are mostly relicts,and are represented in all lineages in the“Eight-Class System of Classification of Angiosperms”,and endemism can be found in almost every evolutionary stage of extant *** relict genera once occupied huge areas in the northern hemisphere in the Tertiary or the late Cretaceous,while neo-endemism mostly originated in the late *** came from Arctic-Tertiary,Paleo-tropical-Tertiary and Tethys-Tertiary florisitic elements,and the blend of the three elements with many genera of autochthonous *** endemism was formed when some dispersal routes such as the North Atlantic Land Bridge,and the Bering Bridge became discontinuous during the Tertiary,as well as the climate change and glaciations in the late Tertiary and the ***,the late Tertiary is the starting point of extant endemism of the flora in China.

关键词： Chinese flora endemism origin evolution

Report on Chinese Imports 2023 Officially Released

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China's Foreign Trade 2023年第6期 14-18页

作者： Wei Hao wu zhengyi Business School Beijing Normal University National Import Research Center Beijing Normal University Business Scholl Beijing Normal University

The 5th China International Import Expo(CIIE)was held in Shangha i from November 5th to 10th,*** order to enable all the relevant parties at home and abroad to better understand the development of China’s imports,the“Report on Chinese Imports 2023”was published,which analyzes China’s imports from the perspectives of provinces and municipalities,cities,import source countries,industries,direct customs,high-tech industrial development zones,economic and technological development zones and free trade zones in order to comprehensively understand the latest trends and changes in the development of China’s import trade in 2022.

关键词： imports Release Import

Point attention network for point cloud semantic segmentation

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Science China(Information Sciences) 2022年

作者： Dayong REN zhengyi wu Jiawei LI Piaopiao YU Jie GUO Mingqiang WEI Yanwen GUO School of Computer Science and Technology Nanjing University of Aeronautics and Astronautics National Key Lab for Novel Software Technology Nanjing University

We address the point cloud semantic segmentation problem through modeling long-range dependencies based on the self-attention mechanism. Existing semantic segmentation models generally focus on local feature aggregation. By comparison, we propose a point attention network(PA-Net) to selectively extract local features with long-range dependencies. We specially devise two complementary attention modules for the point cloud semantic segmentation task. The attention modules adaptively integrate the semantic inter-dependencies with long-range dependencies. Our point attention module adaptively integrates local features of the last layer of the encoder with a weighted sum of the long-range dependency features. Regardless of the distance of similar features, they are all correlated with each other. Meanwhile, the feature attention module adaptively integrates inter-dependent feature maps among all local features in the last layer of the encoder. Extensive results prove that our two attention modules together improve the performance of semantic segmentation on point clouds. We achieve better semantic segmentation performance on two benchmark point cloud datasets(i.e., S3 DIS and Scan Net). Particularly, the Io U on 11 semantic categories of S3 DIS is significantly boosted.

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采用DMA方式的中、大容量遥测数据采集与实时处理

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数据采集与处理 1993年第3期8卷 212-217页

作者：邬正义常熟高等专科学校物理系常熟215500

本文介绍的遥测数据采集与处理系统能对码速率在480kb/s以内的遥测数据流进行不间断的采集,并在采集的同时完成数据分路、工程单位转换、实时数据显示等数据处理工作,并将数据按规定格式存入外部海量存储器。是一个具有实时处理功能的... 详细信息

本文介绍的遥测数据采集与处理系统能对码速率在480kb/s以内的遥测数据流进行不间断的采集,并在采集的同时完成数据分路、工程单位转换、实时数据显示等数据处理工作,并将数据按规定格式存入外部海量存储器。是一个具有实时处理功能的中、大容量数据采集系统。和其他同类系统相比,该系统硬件结构简单,工作可靠,处理能力强,性能价格比高,并可应用于需要长时间连续采集和处理数据的不同场合。

关键词：遥测数据采集数据处理 DMA

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《那儿》:工人阶级的伤痕文学

文艺理论与批评 2005年第2期 14-16页

作者：吕正毅旷新年

1990年代,"腐败是次优选择"、"减员增效"、"吐痰"、"白送"被上升到了"理论"的高度.白蚁一样的"改革家"成了呼风唤雨、横行一世的当代英雄.郎咸平因为作为经济学家揭露了国有资产流失和化公为私的惊天黑幕,成为2004年中国最著名的人物.

关键词：《那儿》小说工人阶级伤痕文学文学评论

基于无应力状态法的悬臂施工桥梁远端控制技术

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科技资讯 2023年第10期21卷 113-116页

作者：吴正义中铁上海工程局有限公司上海201906

济宁市京杭运河新建辅道桥主桥采用连续梁桥悬臂拼装施工,施工控制是分阶段成形桥梁施工控制的重点和难点,钢梁线形控制精度要求高,在现场拼装时需要保证成桥平面与竖曲线线形,控制难度大。文章分析了传统施工控制方法的不足与无应力状... 详细信息

济宁市京杭运河新建辅道桥主桥采用连续梁桥悬臂拼装施工,施工控制是分阶段成形桥梁施工控制的重点和难点,钢梁线形控制精度要求高,在现场拼装时需要保证成桥平面与竖曲线线形,控制难度大。文章分析了传统施工控制方法的不足与无应力状态法的应用原理。采用桥梁专用有限元软件Midas Civil进行施工前有限元仿真计算。基于无应力状态法理论提出了通过远端调节方法实现悬臂拼装快速合拢的方法,降低施工控制难度,加快进度提高效率。

关键词：桥梁与隧道工程无应力状态法施工控制技术分阶段施工桥梁 MIDAS模型

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散文概念的廓清——对散文通行定义的批评

合肥师范学院学报 2017年第2期35卷 52-57页

作者：吴正一合肥师范学院文学院安徽合肥230601

一直以来,现代"散文"概念的外延和内涵都不甚明确,这给散文的发展乃至生存造成巨大的影响。广狭义散文的划分是现代散文理论的一个重大缺陷,既容易引起歧义,又模糊了散文的外延;"真情实感"不能成为散文的本质属性,而且这一提法本身也存... 详细信息

一直以来,现代"散文"概念的外延和内涵都不甚明确,这给散文的发展乃至生存造成巨大的影响。广狭义散文的划分是现代散文理论的一个重大缺陷,既容易引起歧义,又模糊了散文的外延;"真情实感"不能成为散文的本质属性,而且这一提法本身也存在问题;唯有"真人真事"是区分散文与其它文体的"种差"。由此,散文的外延是文学体裁,"真情实意"是散文的重要属性,"真人真事"是散文的本质属性。至于将虚构引入散文的文章则需要重新命名。

关键词：散文概念散文理论学术批评