If you are using China HowNet Digital Library for the first time, you must do the following: download CAJ full-text browser or Acrobat browser and use one of them. Because the document resources of China HowNet Digital Library are in CAJ format and PDF format, you can choose any format. CAJ full-text browser is more powerful than Acrobat browser, so it is recommended to use CAJ full-text browser (downloaded from CNKI homepage).
To make good use of the database of CNKI digital library, we must first learn how to do retrieval and how to deal with retrieval results.
Retrieval is the process of finding and searching the knowledge you need through various channels. The processing of retrieval results is the act of acquiring the required knowledge.
The use of the database includes the retrieval process and the processing of the retrieval results.
recover
China hownet digital library provides a variety of retrieval methods, including:
Navigation retrieval: from the navigation directory, step by step into the next directory, directly to the content you need.
Keyword retrieval: select a retrieval method, enter the corresponding keywords, and retrieve the results.
Secondary retrieval: after the first retrieval operation, if you feel that the range of retrieval results is large, you can conduct multiple secondary retrieval on this basis to narrow the retrieval range and push the retrieval results one by one.
Advanced retrieval: a fast query method combined by logical relations. The logical relationship is "and, or, not". The advantage of this retrieval method is that the query results are less redundant and the hit rate is high. This retrieval system is recommended for queries with high hit rate.
Retrieval mode: China HowNet database provides various retrieval modes. Such as title retrieval, keyword retrieval, abstract retrieval, author retrieval, journal (newspaper, paper) name retrieval and so on.
Retrieval result processing
After finding a large amount of content through various retrieval channels, it is necessary to process, browse, download, extract, copy, take photos or print the retrieved content.
Browsing: Select the article to browse, click Download Full Text, select Open in Current Location, and browse the full text directly.
Download: Select the article you want to download, click Download Full Text, and select Save. The content will be saved in your computer. If you are already browsing the full text, just click Save at the top and bottom.
Print: Click the printer icon in the browser toolbar;
Excerpt: Click "Mark" in the browser toolbar, use the mouse to select the required article content, and copy and paste it into a text editor (such as WORD).
Photographing: Click the mark in the browser toolbar, box and select the required picture, chart or formula, and copy and paste it into WORD, picture editor or other systems.
OCR recognition: Some articles are scanned. To convert the scanned content into text content, you need to press the right mouse button and select the text recognition function to convert the scanned text into text for editing.
Usage and steps:
1. Login to China Journal Full-text Database Retrieval System: After login, the default retrieval mode of the system is the first-class retrieval mode.
2. Select the search scope: the navigation level is: photo album-topic-first-level sub-column-second-level sub-column-third-level sub-column. You can select all the sub-columns of a level, or you can select some of them. Methods: Click on a column to view the next sub-column, and then go down in turn until you can select the appropriate search range. Select √ before the range you want to select, and then click Search. Example: Click on the column catalogue of Science and Technology Series A, and options such as mathematics and mechanics will appear. Click on Mathematics, and the related next-level catalogue will appear. Click Introduction to Mathematics, and three bottom-level directories will appear, namely History and Category of Mathematics, Mathematical Theory and Computing Tools. Double-click automatic search, or select the previous "√" and click search to query. Click Select All to select all items at this level. Click Clear to empty only the selected topic.
3. Select search term: select the fields to be searched in the search term drop-down box, including article title, author, keywords, institution, Chinese abstract, citation, fund, full text, Chinese publication name, ISSN, year, period and subject word 13.
4. Enter a search term: enter a search term in the text box. Search words are important words in article search terms. When they are arranged according to relevance, the higher their word frequency, the more data are arranged at the front.
5. Search: click the Search button to search or click the Clear button to clear the input, and list the search results at the top right of the page. Click on one of them and list detailed information in the browsing area below, such as article name, author, publication name, organization, keywords, etc.