长沙-株洲-湘潭-体化中道路交通发展目标初探

在提出长株潭道路交通总体规划设想的前提下,分析长沙市路网,提出道路交通发展目标.     

图书馆学情报学核心期刊网络引文著者的计量分析

以10种图书馆情报学核心期刊2002～2004年的载文情况为样本．对这3年来的网络引文的著者情况进行了调研、分析。包括著作所属单位、分布地区、以覆职祢、学历、年龄等，旨在更准确地研究图书情报界对网络学术信息的利用情况。     

基于Web内嵌Office控件的文档管理平台研究

阐述了基于web内嵌office控件的文档管理平台的基本框架结构,详细介绍了利用web-office控件实现模板的创建和文档的创建的设计原理,以及整个文档管理平台模块的详细功能实现。     

Data Collection Based on Web Services

To construct data warehouse with heterogeneous, self-governing and distributed database system is a challenge. Two problems have to be solved: one is how to collect data from heterogeneous data sources by an effective method, the other is how to clear up and change the format of the data collected from data sources. The opening and the interact-operation property of Web Services is Analyzed. A Data Collection System based on Web Services, which communicates with heterogeneous data sources with SOAP and HTTP, has been designed. A Data Collector is introduced to clear up and to transform data with composition technology. The pivotal XML technology of transforming and loading up the data are discussed.     

Knowledge Representation for Rotative Machine Fault Diagnosis Based on Semantic Net

Aiming at knowledge representation problem of expert system for rotary machinery fault diagnosis, semantic net knowledge representation is discussed. Semantic net to represent expert knowledge of rotary machinery fault diagnosis is explored. Its realizing method is afforded in computer language, in addition, demostrating model is also developed in Visual C++. The result shows good validity of the knowledge representation.     

Composition of Application Based on Business Rule

In order to support flexibility and reusability of application composition based on Internet,with business rule and Aspect-Oriented Programming(AOP) which divides a business process into a control business process and a core business process,the authorsgive composition mechanism.A technique of implementation is analyzed.At last,the primary application of the above work in Chongqing of China is introduced,as well as some effects acquired.     

基于WEB农业物料特性信息管理系统的开发

以农业物料特性的公式、线图、数据表及相关信息为对象，利用ASP技术，采用B／S架构结构，建立基于WEB农业物料特性信息管理系统。系统的建立为农业物料信息提供了有效的网络知识库平台，实现了数据的共享，符合我国农业信息化的发展方向。     

基于SegNet模型的高原鼠兔的图像分割

针对高原鼠兔图像目标尺寸小、背景复杂、特征不显著、基于活动轮廓的图像分割模型无法有效分割的问题,采用基于卷积神经网络的SegNet语义模型对高原鼠兔图像进行分割：首先将采集的高原鼠兔图像进行预处理,尺度归一化后制作成与Pascal VOC数据集格式一致的数据集;然后将数据集分为训练集与测试集,采用训练集对SegNet模型训练,测试集对模型进行分割测试。对高原鼠兔图像分割的试验结果表明：与基于活动轮廓的Chan_Vese模型相比,基于卷积神经网络的SegNet模型对高原鼠兔图像分割时的交并比、平均像素精度、Dice相似性指数和Jaccard指数分别提高了68.33%、9.35%、30.61%和47.98%,过分割率和欠分割率分别降低了87.20%、16.52%。     

Improving the efficiency of plant root system phenotyping through digitization and automation

Root system architecture (RSA) determines unevenly distributed water and nutrient availability in soil. Genetic improvement of RSA, therefore, is related to crop production. However, RSA phenotyping has been carried out less frequently than above-ground phenotyping because measuring roots in the soil is difficult and labor intensive. Recent advancements have led to the digitalization of plant measurements; this digital phenotyping has been widely used for measurements of both above-ground and RSA traits. Digital phenotyping for RSA is slower and more difficult than for above-ground traits because the roots are hidden underground. In this review, we summarized recent trends in digital phenotyping for RSA traits. We classified the sample types into three categories: soil block containing roots, section of soil block, and root sample. Examples of the use of digital phenotyping are presented for each category. We also discussed room for improvement in digital phenotyping in each category.