咸宁市城市绿地植物配置调查与分析

为加快咸宁市城市绿化进程,对咸宁市城市绿地园林植物种类和配置模式进行调查。结果表明:咸宁市共有园林植物229种,其中芳香型植物103种,观叶类植物39种,观果类植物16种,观形类植物71种,其植物种类资源丰富,季相景观变化明显,群落结构多样性较高,配置形式多元化。     

珠江公园植物造景分析

概述了珠江公园不同环境中植物造景的主要特征,分析了该公园植物构成的点、线、面空间形态在景观塑造中的作用,指出公园植物造景应从空间塑造和游人感受的角度出发,综合运用形式美的法则,使塑造的植物景观符合环境的空间特性并具有形式上的美感。     

Ecosystem‐based fisheries management: A perspective on the critique and development of the concept

The concept of ecosystem‐based fisheries management (EBFM) has been subjected to debate since it was introduced in the late 1990s. The development of the concept seems to follow two separate but simultaneous trajectories of increased popularity but also sustained critique. This paper offers an analysis of potential mechanisms behind these disparate trajectories by drawing on a theoretical framework from science and technology studies (STS) centred around "black box" and actor‐network theory. To support our analysis, we perform an exploratory literature review of how the EBFM concept has been used in a selection of high impact fisheries research papers. We find that the popularity of EBFM does not guarantee its integrity, usefulness or analytical insight, but also that persistent critique of how the concept is used seems to be driving some change. We think that a continued trajectory of increased understanding, contextualization and discernibility of EBFM can help overcome the considerable ambiguity associated with the concept and make it increasingly useful to fisheries management. This means moving away from routine use of the term towards a practicable and tangible approach to improve fisheries sustainability.     

环境容量初始配置的建模思路和求解方法探讨

结合我国当前处于由目标总量控制向容量总量控制过渡时期的特点,以公平与效率为配置原则,构建了由法定削减与公平削减组成的两步削减模型。通过模糊聚类分析和层次分析法的联合应用,建立了模型的求解方法。     

构建和谐的公共图书馆服务文化

论述了图书馆服务文化的内涵与特征、功能，探讨了构建和谐图书馆服务文化的意义和作用，和谐图书馆服务文化的管理手段，提出了构建和谐的图书馆服务文化的若干建议。     

视网膜母细胞瘤109例分析

目的：分析视网膜母细胞瘤的发病特点和诊治规律。方法；收集本院近２３ａ来的１０９例ＲＢ病毒，对其临床特点，病理表现，治疗，预后及家系调查作一回顾性分析。结果：７７．１％的病例就诊年龄小于５岁。２２例为双眼发病，９例具有肿瘤家族史。１０９例中以晚期虱阳多见，病理检查大多可见有视神经和巩膜浸润。     

一个实用型校园网络的设计与实施

通过参与中南林学院校园网组网实践和对其它院校校园网的分析研究，对校园网组网的指导思想、网络需求分析、方案制定和总体结构设计、方案实施及网络应用等问题进行了探讨.     

基于超声波传感器的电极长度实时测控系统

设计与开发了以工控机为核心，以MCGS组态软件为开发平台，基于可编程超声波精密传感器的电极长度实时测控系统．提出了实时测量电极挤出长度并控制电极挤出速度的方法．该系统通过测量电极剪切端面与传感器之间的距离，计算电极的挤出长度，并以电极长度为反馈量控制电极挤压速度，实现了电极剪切的零速定位．实际运行表明，系统可靠、有效，电极长度误差小于10mm．     

陆地棉与7个野生棉杂种细胞学研究

分析了四倍体栽培种陆地棉与辣根棉、哈克尼西棉、旱地棉、雷蒙德氏棉、裂片棉、异常棉和司笃克克棉等二倍体野生棉种间杂种Ｆ１的细胞学，花粉母细胞中期Ｉ染色体平均构型依次为：１４．６２Ⅰ＋１１．９３Ⅱ＋０．１７Ⅲ、１４．２１Ⅰ＋１２．３６Ⅱ＋０．０２Ⅲ、１１．７０Ⅰ＋１３．５２Ⅱ＋０．０９Ⅲ、１３．５６Ⅰ＋１２．７２Ⅱ、１４．１０１＋１２．２７Ⅱ＋０．１２Ⅲ、２８．１９Ⅰ＋５．１６Ⅱ＋０．１６Ⅲ和３１．２     

A Class of Planar 5 - Body Central Configurations

Newtonian n-body problem is an old, complicated problem. It is very significant to study it. Even about three problem, the completed solutions have not obtained so far. It is one hottest point studied in n-body problem. Based on some hypothesis of symmetric conditions, some necessary and sufficient conditions have been obtained with the purely algebra method. The classification of planar 5 - body central configurations is discussed , in which three class planar 5 -body central configurations are obtained.