Zikhona Dr Tywabi-Ngeva
PhD in Chemistry, senior lecturer, fellow of the Academy of Science of South Africa
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Publications
29
Citations
276
h-index
9
About
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Total publications
29
Total citations
276
Citations per publication
9.52
Average publications per year
2.07
Average coauthors
5.69
Publications years
2012-2025 (14 years)
h-index
9
i10-index
7
m-index
0.64
o-index
25
g-index
16
w-index
3
Metrics description
h-index
A scientist has an h-index if h of his N publications are cited at least h times each, while the remaining (N - h) publications are cited no more than h times each.
i10-index
The number of the author's publications that received at least 10 links each.
m-index
The researcher's m-index is numerically equal to the ratio of his h-index to the number of years that have passed since the first publication.
o-index
The geometric mean of the h-index and the number of citations of the most cited article of the scientist.
g-index
For a given set of articles, sorted in descending order of the number of citations that these articles received, the g-index is the largest number such that the g most cited articles received (in total) at least g2 citations.
w-index
If w articles of a researcher have at least 10w citations each and other publications are less than 10(w+1) citations, then the researcher's w-index is equal to w.
Top-100
Fields of science
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3
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General Materials Science
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General Materials Science, 3, 10.34%
General Materials Science
3 publications, 10.34%
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Physical and Theoretical Chemistry
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Physical and Theoretical Chemistry, 2, 6.9%
Physical and Theoretical Chemistry
2 publications, 6.9%
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General Medicine
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General Medicine, 2, 6.9%
General Medicine
2 publications, 6.9%
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Atomic and Molecular Physics, and Optics
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Atomic and Molecular Physics, and Optics, 2, 6.9%
Atomic and Molecular Physics, and Optics
2 publications, 6.9%
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Health, Toxicology and Mutagenesis
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Health, Toxicology and Mutagenesis, 2, 6.9%
Health, Toxicology and Mutagenesis
2 publications, 6.9%
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General Chemistry
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General Chemistry, 1, 3.45%
General Chemistry
1 publication, 3.45%
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Computer Science Applications
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Computer Science Applications, 1, 3.45%
Computer Science Applications
1 publication, 3.45%
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Multidisciplinary
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Multidisciplinary, 1, 3.45%
Multidisciplinary
1 publication, 3.45%
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Process Chemistry and Technology
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Process Chemistry and Technology, 1, 3.45%
Process Chemistry and Technology
1 publication, 3.45%
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Instrumentation
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Instrumentation, 1, 3.45%
Instrumentation
1 publication, 3.45%
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General Engineering
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General Engineering, 1, 3.45%
General Engineering
1 publication, 3.45%
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Environmental Chemistry
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Environmental Chemistry, 1, 3.45%
Environmental Chemistry
1 publication, 3.45%
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Pollution
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Pollution, 1, 3.45%
Pollution
1 publication, 3.45%
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Toxicology
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Toxicology, 1, 3.45%
Toxicology
1 publication, 3.45%
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Fluid Flow and Transfer Processes
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Fluid Flow and Transfer Processes, 1, 3.45%
Fluid Flow and Transfer Processes
1 publication, 3.45%
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Community and Home Care
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Community and Home Care, 1, 3.45%
Community and Home Care
1 publication, 3.45%
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Chemical Health and Safety
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Chemical Health and Safety, 1, 3.45%
Chemical Health and Safety
1 publication, 3.45%
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3
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Journals
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2
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Journal of Chemical Thermodynamics
2 publications, 6.9%
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Hybrid Advances
2 publications, 6.9%
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Journal of Molecular Structure
1 publication, 3.45%
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Results in Engineering
1 publication, 3.45%
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Applied Sciences (Switzerland)
1 publication, 3.45%
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Journal of Saudi Chemical Society
1 publication, 3.45%
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Energy Reports
1 publication, 3.45%
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Heliyon
1 publication, 3.45%
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Toxics
1 publication, 3.45%
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Environmental Science and Pollution Research
1 publication, 3.45%
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European Journal of Chemistry
1 publication, 3.45%
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Chemistry International
1 publication, 3.45%
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Journal of the Nigerian Society of Physical Sciences
1 publication, 3.45%
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Green Analytical Chemistry
1 publication, 3.45%
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Advances in Environmental Engineering and Green Technologies
1 publication, 3.45%
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Edelweiss Applied Science and Technology
1 publication, 3.45%
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Environment and Social Psychology
1 publication, 3.45%
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Industrial and Domestic Waste Management
1 publication, 3.45%
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2
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Citing journals
Publishers
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9
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Elsevier
9 publications, 31.03%
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MDPI
2 publications, 6.9%
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Walter de Gruyter
1 publication, 3.45%
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Springer Nature
1 publication, 3.45%
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King Saud University
1 publication, 3.45%
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European Journal of Chemistry
1 publication, 3.45%
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IGI Global
1 publication, 3.45%
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Nigerian Society of Physical Sciences
1 publication, 3.45%
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Tecno Scientifica Publishing
1 publication, 3.45%
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Learning Gate
1 publication, 3.45%
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Arts and Science Press Pte. Ltd.
1 publication, 3.45%
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1
2
3
4
5
6
7
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9
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Organizations from articles
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2
4
6
8
10
12
14
16
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Organization not defined
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Organization not defined, 16, 55.17%
Organization not defined
16 publications, 55.17%
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Nelson Mandela University
11 publications, 37.93%
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University of Johannesburg
7 publications, 24.14%
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Tshwane University of Technology
2 publications, 6.9%
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Durban University of Technology
2 publications, 6.9%
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Warsaw University of Technology
2 publications, 6.9%
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National University of Science and Technology, Bulawayo
2 publications, 6.9%
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Joint Institute for Nuclear Research
1 publication, 3.45%
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Iowa State University
1 publication, 3.45%
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University of KwaZulu-Natal
1 publication, 3.45%
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University of the Free State
1 publication, 3.45%
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Cape Peninsula University of Technology
1 publication, 3.45%
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Vaal University of Technology
1 publication, 3.45%
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University of Ilorin
1 publication, 3.45%
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Nile University of Nigeria
1 publication, 3.45%
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Clemson University
1 publication, 3.45%
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University of Porto
1 publication, 3.45%
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Bournemouth University
1 publication, 3.45%
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National University of Lesotho
1 publication, 3.45%
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4
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8
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12
14
16
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Countries from articles
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2
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14
16
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Country not defined
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Country not defined, 15, 51.72%
Country not defined
15 publications, 51.72%
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South Africa
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South Africa, 15, 51.72%
South Africa
15 publications, 51.72%
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USA
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USA, 4, 13.79%
USA
4 publications, 13.79%
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Russia
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Russia, 2, 6.9%
Russia
2 publications, 6.9%
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Zimbabwe
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Zimbabwe, 2, 6.9%
Zimbabwe
2 publications, 6.9%
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Nigeria
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Nigeria, 2, 6.9%
Nigeria
2 publications, 6.9%
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Poland
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Poland, 2, 6.9%
Poland
2 publications, 6.9%
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Portugal
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Portugal, 1, 3.45%
Portugal
1 publication, 3.45%
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United Kingdom
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United Kingdom, 1, 3.45%
United Kingdom
1 publication, 3.45%
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India
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India, 1, 3.45%
India
1 publication, 3.45%
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Lesotho
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Lesotho, 1, 3.45%
Lesotho
1 publication, 3.45%
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Republic of Korea
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Republic of Korea, 1, 3.45%
Republic of Korea
1 publication, 3.45%
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Saudi Arabia
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Saudi Arabia, 1, 3.45%
Saudi Arabia
1 publication, 3.45%
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16
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Citing organizations
Citing countries
- We do not take into account publications without a DOI.
- Statistics recalculated daily.
Data by ORCID
ChemistrySelect
(2)