提出了中文化学文献计算机检索系统的设计构想,探讨了该系统的特点。
This paper advances the design conception of computer retrieval system of Chinese chemical literatures, and probes into the features of this system.
在分析美国《化学文摘》中的各种索引及使用方法的基础上,制定出了符合个性需求的检索策略。
Based on analyzing CA index system and the use method of various indexes, this paper gives some retrieval strategies fitting in with the individualized demands.
介绍了三类重要的网络上化学化工资源检索工具,并对两个重要的化学化工资源站点导航做了简介。
Three important searching tools of chemical resource on the Internet are presented, and two important websites of this kind are briefly introduced.
对有关情报源进行了归纳和总结,为激光化学的深入研究和文献检索提供了方便和依据。
The informational source is also summed up and concluded, thus providing convenience and basis for the further study of laser chemistry, information storage and retrieval.
化合物各种常见性质的检索对化学化工工作者十分重要。
It is important for chemical researchers to search various physiochemical properties of compounds in their work.
本实验采用高效液相色谱——指纹图谱法分析并比较了7种大黄的化学成分间的差异,绘制了条形图和检索表。
The differences of 7 kinds of Rheum were compared by HPLC-FPS in this study. The column figures and the retrieval table were drawn.
结构检索方法建立在图子图匹配算法VF 2的基础上,对其进行了必要的改造和扩展,使之适合于化学结构检索。
The VF2 graph matching algorithm on which the chemical structure search system was based has been modified and extended appropriately.
化学化工信息资源的检索方式已由对大型文献数据库的联机信息检索过渡到网络信息检索。
The retrieval of chemical information has transited to the network from the online on document database.
这主要是由于反应数据库基于结构的检索方法与化学家解决问题的方法相去甚远。
The main reason is that the current reaction databases are based on substructure searching which is an approach quite different from that chemists often use.
它具有化学结构检索和文字检索两大检索功能,并便于数据库维护、中文处理、图形存贮和使用方便等特点。
It is satisfied in maintenance of database, treatment of Chinese text and storing of graph. It is easy to use.
方法采用水蒸气蒸馏法获得挥发油,经GC - MS技术结合计算机检索对其化学成分进行分离和鉴定,用色谱峰面积归一化法计算各组峰的相对含量。
METHODS The oils were extracted by steam distillation. The chemical compounds were separated and identified by GC-MS. The relative content of each component was determined by area normalization.
本文从传统的检索工具《生物学文摘》、《化学文摘》、《工程索引》入手,介绍各自的概况、结构以及它们的网络版的特点。
The paper start with the conventional search tools:,. It introduce general situation, structure and the characteristic of network.
方法:采用文献检索法,对近年来有关葛根地上部分(葛花、葛叶、葛蔓)的化学、药理研究概况进行综述。
METHODS:The recent studies on constituents and pharmacology of the aerial parts of radix puerariae including flowers, leaves and vines were summarized on the basis of literature review.
本文在系统地研究语义检索和个性化学习的基础上,提出了一种基于本体的个性化学习资源语义检索模型。
In this paper, based on a systematic study of semantic retrieval and personalized learning, a personalized learning resource retrieval models based on semantic have been proposed.
结果共分离出34种化学成分,经与质谱标准图谱比较,检索出15种化合物。
Results About 34 components were separated from the volatile oil extracted from the similar wild panax ginseng and 15 compounds were identified according to the compound index.
结果共分离出34种化学成分,经与质谱标准图谱比较,检索出15种化合物。
Results About 34 components were separated from the volatile oil extracted from the similar wild panax ginseng and 15 compounds were identified according to the compound index.
应用推荐