• 提出中文化学文献计算机检索系统设计构想探讨系统的特点

    This paper advances the design conception of computer retrieval system of Chinese chemical literatures, and probes into the features of this system.

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  • 分析美国《化学文摘中的各种索引使用方法基础上,制定出了符合个性需求检索策略

    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.

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  • 介绍了三类重要网络化学化工资源检索工具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.

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  • 有关情报进行了归纳总结激光化学深入研究文献检索提供了方便依据

    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.

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  • 化合物各种常见性质检索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.

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  • 实验采用高效液相色谱——指纹图谱法分析并比较7大黄化学成分间差异绘制了条形检索

    The differences of 7 kinds of Rheum were compared by HPLC-FPS in this study. The column figures and the retrieval table were drawn.

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  • 结构检索方法建立子图匹配算法VF 2的基础上,对进行必要改造扩展,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.

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  • 化学化工信息资源检索方式大型文献数据库联机信息检索过渡网络信息检索

    The retrieval of chemical information has transited to the network from the online on document database.

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  • 主要由于反应数据库基于结构检索方法化学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.

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  • 具有化学结构检索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.

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  • 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鉴定色谱峰面积一化法计算各组峰相对含量

    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.

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  • 本文传统检索工具《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网络版的特点

    The paper start with the conventional search tools:,. It introduce general situation, structure and the characteristic of network.

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  • 方法:采用文献检索法,对近年来有关葛根地上部分(葛花、葛、葛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.

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  • 本文系统地研究语义检索个性基础,提出基于本体的个性化学资源语义检索模型

    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.

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  • 结果分离34化学成分,经质谱标准图谱比较,检索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.

    youdao

  • 结果分离34化学成分,经质谱标准图谱比较,检索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.

    youdao

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