Question 1: How to write the search expression for CNKI search. Urgent request~ Title=A OR Abstract B AND (Author=C OR Institution=D) NOT Source=E Perform a precise search for "A" in the title, or perform a fuzzy search for "B" in the abstract and the author is " C" or the institution is "D" and the source is not "E". The following are some common statement expressions and their meanings. Search item type. Search operator. Search meaning. Numeric type. OP value. OP is an operator, which can be gt; = = 0). There is at least one space before and after the search control character $ = ' str1 /NEAR N str2 ' str1 and str2 are in the same sentence, and are separated by no more than N characters. There is at least one space before and after the search control character /NEAR = ' str1 /PREV N str2 ' str1 and str2 are in the same sentence, and str1 is not before str2. More than N characters are retrieved. There is at least one space before and after the search control character /PREV = ' str1 /SEN N str2 ' str1 and str2 are in the same paragraph, and the distance between them is no more than N sentences. There is at least one space before and after the search control character / SEN
Hope to adopt
Question 2: How to write a search query? urgent! 80 points Traditional Chinese patterns AND application in modern design
There may be errors. .
Interferon AND interleukin-2 AND treatment AND leukemia
Question 3: Write the search terms and search formulas for the following topics 15 points 1. Research on the impact of various countries’ fiscal policies on the national economy
Search terms: Fiscal Policy National Economy
Search terms: (Fiscal Policy * National Economy) * Impact
(Fiscal Policy * National Economy) * Effect
2. Issues of professional managers under the category of institutional economics
Search terms: Institutional Economics Professional Manager Professional Manager
Search formula: (Institutional Economics * Professional Manager) * Problem
(Institutional Economics * Professional Manager) * Problem
3. Overview of World Heritage Tourism Development Research
Search terms: World Heritage Site Tourism Development Touri *** Development
Search terms: (World Global) * (Heritage Site * Tourism Development) * Research Summary
A Research Summary on (World the Whole World) * (Heritage Site*Touri *** Development
Question 4: How to write the search expression and solve it.... It depends on how you search,
Question 5: Does anyone know how to write the search term? TI is the English title: the meaning of the title. As you wrote: include
KEY is the keyword
In fact, we can also use some simple methods:
1. Document type selection
On the document query page, "Document type selection" lists the documents that can be queried by users in this system. Various types of literature databases.
This is a required item and can be selected individually, multiple times or all. The system has a cross-database search function and can search for documents in multiple databases at the same time.
2. Query range selection
This is a single-select item. You can select any one of the items such as author, title, abstract, keywords, classification number or full-text search to confirm that the system will search the corresponding fields in the database. The "Full Text Search" option can search all fields in the database.
3. Query year selection
Used to select the publication year of the literature to be searched. The selected year is equivalent to January 1st to December 31st of the current year, and the default time is all years.
4. Enter the search terms
You can enter a single word closely related to the query topic to search, or you can search through "and" (with), "or" (or), " "not" (not) are combined to form a more complex logical search formula. For example, if you want to find papers about computer-aided design, you can use the Chinese phrase "computer-aided design" or the English abbreviation "CAD" to express it. Through the "or" relationship, you can form a search formula like this: computer-aided design or CAD After entering the search conditions, press the "Search" button to query the bibliographic list of relevant documents.
The following method is more professional, not suitable for most people, and is not recommended for use!
Type one or more search terms (can be any word), such as protein disulfide isomerase , you can also enter abbreviations such as pdi, etc.; when you enter multiple words, they can be automatically recognized into phrases; but when there are too many words, they will be recognized by logical AND. For example, protein disulfide isomerase can be recognized as one word, and it is also possible Recognize it as "protein AND disulfide AND isomerase", especially when symbols such as numbers appear, it is difficult to identify it as a phrase;
For phrases that cannot be recognized for search, you need to add quotation marks to emphasize them, such as typing: "Insight II"
Search by document author, the input format of the author's name is: Name
For example, enter: Free *** an DJ, where "last name" is the full name and "first name" is the initial letter Abbreviated form ("name" can be omitted);
The entered magazine name can be the full name, or the MedLine abbreviated format of the magazine name
or ISSN magazine number (see journal browsing ).
When searching, you can add "*" to the end of the word to search for all words with the same prefix. For example, type: biolog* to find words such as biology or biological.
You can also query multiple words in the form of phrases. For phrases that cannot be recognized and searched, you need to add quotation marks to emphasize them. For example, type:
"Insight II"
The phrase "Insight II" will be recognized as a query. If you type:
Insight II
, it may be recognized as two words: "Insight" and "II". Search logically and "Insight AND II".
You can use AND, OR or NOT logic to search for conjunctions between words.
After entering the search terms, don’t forget to select the search period (ranging from 30 days to 10 years) and the number of pages to display the selected documents.
Press the Enter key or click the "Search" button in the conversation interface to get the document summary page.
2. Advanced Search
What is different from the basic search method is the addition of search fields and search mode selection boxes.
In the search scope Search Fields selection bar,
All fields[ALL] is included, which refers to all search scopes;
Affiliation[AD, AFFL] , refers to the contact address,...gt;gt;
Question 6: How to write the search query, please give an example. If you can't write, directly open the Baidu homepage baidu. Click Advanced to enter advanced search, fill in "Computer Software Testing Methods" in the first box, fill in "Preparations before Testing" in the second box, and then click Baidu Search. The obtained retrieval formula is as follows:
Computer software testing method Preparation work before testing
This is the most basic method of constructing a retrieval formula. For more information on the construction of search terms, please refer to:
zhidao.baidu/question/127175571
zhidao.baidu/question/125392354
zhidao.baidu/question /127021448
wendang.baidu/...f
Question 7: How to write a general English search expression? Use or in parallel; use and in superposition; add () if necessary.
Patent search is the process of selecting documents or information that meet certain requirements from a large number of patent documents or patent databases based on one or several characteristics
.
Online Chinese patent searches can be conducted through multiple websites, including paid websites and free websites. 1. China State Intellectual Property Office website; 2. Baiteng.com patent search system; 3. Patent Star-patent search system; 4. RAINPAT patent search engine.
For example, if you log in to the public patent inquiry website, you can search by any of the invention name, patent number, applicant, etc.; click on the application information or review information or legal status, etc., you can usually find what you need. information.
Question 8: Examples of search terms 5 points If you don’t know how to write, just open the Baidu homepage baidu. Click Advanced to enter advanced search, fill in "Computer Software Testing Methods" in the first box, fill in "Preparations before Testing" in the second box, and then click Baidu Search. The obtained retrieval formula is as follows:
Computer software testing method Preparation work before testing
This is the most basic method of constructing a retrieval formula. For more information on the construction of search terms, please refer to:
zhidao.baidu/question/127175571
zhidao.baidu/question/125392354
zhidao.baidu/question /127021448
wendang.baidu/...f
Hope this can solve your problem.
Question 9: How to write the search expression for CNKI search. Urgent request~ Title=A OR Abstract B AND (Author=C OR Institution=D) NOT Source=E Perform a precise search for "A" in the title, or perform a fuzzy search for "B" in the abstract and the author is " C" or the institution is "D" and the source is not "E".
The following are some common statement expressions and their meanings. Search item type. Search operator. Search meaning. Numeric type. OP value. OP is an operator, which can be gt; = = 0). There is at least one space before and after the search control character $ = ' str1 /NEAR N str2 ' str1 and str2 are in the same sentence, and are separated by no more than N characters. There is at least one space before and after the search control character /NEAR = ' str1 /PREV N str2 ' str1 and str2 are in the same sentence, and str1 is not before str2. More than N characters are retrieved. There is at least one space before and after the search control character /PREV = ' str1 /SEN N str2 ' str1 and str2 are in the same paragraph, and the distance between them is no more than N sentences. There is at least one space before and after the search control character / SEN
Hope to adopt
Question 10: How to write a search query? urgent! 80 points Traditional Chinese patterns AND application in modern design
There may be errors. .
Interferon AND interleukin-2 AND treatment AND leukemia