நிலத்தடி நிலக்கரி வளிமமாக்கல்

ta

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நிலத்தடி நிலக்கரி வளிமமாக்கல்

Quality:

Underground coal gasification - industrial process which converts underground coal into gas. Article “நிலத்தடி நிலக்கரி வளிமமாக்கல்” in Tamil Wikipedia has 28.1 points for quality (as of July 1, 2025). The article contains 5 references and 3 sections.

This article has the best quality in English Wikipedia. Also, this article is the most popular in that (Tamil) language version.

Since the creation of article “நிலத்தடி நிலக்கரி வளிமமாக்கல்”, its content was written by 8 registered users of Tamil Wikipedia and edited by 175 registered Wikipedia users in all languages.

The highest Authors Interest rank from 2001:

  • Local (Tamil): #647 in August 2011
  • Global: #34047 in December 2014

The highest popularity rank from 2008:

  • Local (Tamil): #7665 in July 2012
  • Global: #322778 in January 2012

There are 7 language versions for this article in the WikiRank database (of the considered 55 Wikipedia language editions).

The quality and popularity assessment was based on Wikipédia dumps from July 1, 2025 (including revision history and pageviews for previous years).

The table below shows the language versions of the article with the highest quality.

Languages with the highest quality

#LanguageQuality gradeQuality score
1English (en)
Underground coal gasification
70.1357
2German (de)
Untertagevergasung
41.92
3Tamil (ta)
நிலத்தடி நிலக்கரி வளிமமாக்கல்
28.057
4Russian (ru)
Подземная газификация угля
24.6396
5Ukrainian (uk)
Підземна газифікація вугілля
16.8577
6Urdu (ur)
زیر زمین کوئلے سے گیس کی تیاری
7.6121
7Armenian (hy)
Ստորերկրյա գազացում
1.4488
More...

The following table shows the most popular language versions of the article.

Most popular in all the time

The most popular language versions of the article "நிலத்தடி நிலக்கரி வளிமமாக்கல்" in all the time
#LanguagePopularity awardRelative popularity
1English (en)
Underground coal gasification
403 307
2Russian (ru)
Подземная газификация угля
78 167
3German (de)
Untertagevergasung
28 713
4Ukrainian (uk)
Підземна газифікація вугілля
10 191
5Urdu (ur)
زیر زمین کوئلے سے گیس کی تیاری
2 628
6Tamil (ta)
நிலத்தடி நிலக்கரி வளிமமாக்கல்
1 939
7Armenian (hy)
Ստորերկրյա գազացում
797
More...

The following table shows the language versions of the article with the highest popularity in the last month.

Most popular in June 2025

The most popular language versions of the article "நிலத்தடி நிலக்கரி வளிமமாக்கல்" in June 2025
#LanguagePopularity awardRelative popularity
1English (en)
Underground coal gasification
1 007
2Russian (ru)
Подземная газификация угля
196
3German (de)
Untertagevergasung
56
4Armenian (hy)
Ստորերկրյա գազացում
14
5Urdu (ur)
زیر زمین کوئلے سے گیس کی تیاری
14
6Ukrainian (uk)
Підземна газифікація вугілля
11
7Tamil (ta)
நிலத்தடி நிலக்கரி வளிமமாக்கல்
6
More...

The following table shows the language versions of the article with the highest Authors’ Interest.

The highest AI

Language versions of the article "நிலத்தடி நிலக்கரி வளிமமாக்கல்" with the highest Authors Interest (number of authors). Only registered Wikipedia users were taken into account.
#LanguageAI awardRelative AI
1English (en)
Underground coal gasification
97
2German (de)
Untertagevergasung
35
3Russian (ru)
Подземная газификация угля
18
4Ukrainian (uk)
Підземна газифікація вугілля
9
5Tamil (ta)
நிலத்தடி நிலக்கரி வளிமமாக்கல்
8
6Armenian (hy)
Ստորերկրյա գազացում
6
7Urdu (ur)
زیر زمین کوئلے سے گیس کی تیاری
2
More...

The following table shows the language versions of the article with the highest Authors’ Interest in the last month.

The highest AI in June 2025

Language versions of the article "நிலத்தடி நிலக்கரி வளிமமாக்கல்" with the highest AI in June 2025
#LanguageAI awardRelative AI
1German (de)
Untertagevergasung
0
2English (en)
Underground coal gasification
0
3Armenian (hy)
Ստորերկրյա գազացում
0
4Russian (ru)
Подземная газификация угля
0
5Tamil (ta)
நிலத்தடி நிலக்கரி வளிமமாக்கல்
0
6Ukrainian (uk)
Підземна газифікація вугілля
0
7Urdu (ur)
زیر زمین کوئلے سے گیس کی تیاری
0
More...

The following table shows the language versions of the article with the highest number of citations.

The highest CI

Language versions of the article "நிலத்தடி நிலக்கரி வளிமமாக்கல்" with the highest Citation Index (CI)
#LanguageCI awardRelative CI
1English (en)
Underground coal gasification
74
2German (de)
Untertagevergasung
28
3Russian (ru)
Подземная газификация угля
24
4Ukrainian (uk)
Підземна газифікація вугілля
22
5Urdu (ur)
زیر زمین کوئلے سے گیس کی تیاری
3
6Armenian (hy)
Ստորերկրյա գազացում
0
7Tamil (ta)
நிலத்தடி நிலக்கரி வளிமமாக்கல்
0
More...

Scores

Estimated value for Wikipedia:
Tamil:
Global:
Popularity in June 2025:
Tamil:
Global:
Popularity in all years:
Tamil:
Global:
Authors in June 2025:
Tamil:
Global:
Registered authors in all years:
Tamil:
Global:
Citations:
Tamil:
Global:

Quality measures

Interwikis

#LanguageValue
deGerman
Untertagevergasung
enEnglish
Underground coal gasification
hyArmenian
Ստորերկրյա գազացում
ruRussian
Подземная газификация угля
taTamil
நிலத்தடி நிலக்கரி வளிமமாக்கல்
ukUkrainian
Підземна газифікація вугілля
urUrdu
زیر زمین کوئلے سے گیس کی تیاری

Popularity rank trends

Best Rank Tamil:
#7665
07.2012
Global:
#322778
01.2012

AI rank trends

Best Rank Tamil:
#647
08.2011
Global:
#34047
12.2014

Local popularity rank history

Local AI rank history

Languages comparison

Important global interconnections (July 2024 – June 2025)

Wikipedia readers most often find their way to information on Underground coal gasification from Wikipedia articles about Moscow coal basin, Coal seam fire, Coal gasification, Kuznetsk Basin and Syngas. Whereas reading the article about Underground coal gasification people most often go to Wikipedia articles on Coalbed methane, Gasification, Gas generator, Fischer-Tropsch process and Landfill gas.

Cumulative results of quality and popularity of the Wikipedia article

List of Wikipedia articles in different languages (starting with the most popular):

About WikiRank

The WikiRank project is intended for automatic relative evaluation of the articles in the various language versions of Wikipedia. At the moment the service allows to compare over 44 million Wikipedia articles in 55 languages. Quality scores of articles are based on Wikipedia dumps from July, 2025. When calculating current popularity and AI of articles data from June 2025 was taken into account. For historical values of popularity and AI WikiRank used data from 2001 to 2025... More information