Productivity Rankings is a unique service offered only by “AD Scientific Index”. This is a ranking system derived from the i10 index in order to show the productivity of the scientist in publishing scientific articles of value. Productivity Rankings is an instrument that lists productive scientists in a given area, discipline, university, and country and can guide the development of meaningful incentives and academic policies. The world rankings, regional rankings, and university rankings of scientists in this table are developed based on the total i10 index. Click for "last 6 years' i10 index". Also see: Universities Rankings 2024 (Sort by : Total i10 Index) and Universities Rankings 2024 (Sort by : Last 6 Years i10 Index)
* Total i10 Index Rankings
World Rank
985,441
Country Rank
9,179
Institution Rank : 19
![](https://cdn.adscientificindex.com/logos/27494.jpg)
![Nigeria](/flags/ng.png)
![Ahmed Rufai Usman](/pictures/09/4561793.jpg)
Radiation Physics
Nuclear Reactions
Medical Physics
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
8
8
1.000
* Total i10 Index Rankings
World Rank
1,049,943
Country Rank
10,620
Institution Rank : 26
![](https://cdn.adscientificindex.com/logos/27494.jpg)
![Nigeria](/flags/ng.png)
![Mahmud Abdulsalam](/user/assets/images/profile/no-profile-photo.png)
Condensed matter Physics
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
7
7
1.000
* Total i10 Index Rankings
World Rank
1,329,671
Country Rank
18,102
Institution Rank : 47
![](https://cdn.adscientificindex.com/logos/27494.jpg)
![Nigeria](/flags/ng.png)
![Engr. Auwal Abdulkadir](/pictures/b6/4641379.jpg)
Photovoltaics Materials and Device Engineering (Black silicon solar cells)
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
3
3
1.000
* Total i10 Index Rankings
World Ranking
985,441
Country Ranking
9,179
Institution Ranking
19
Ahmed Rufai Usman
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
8
8
1.000
![](https://cdn.adscientificindex.com/logos/27494.jpg)
Radiation Physics
Nuclear Reactions
Medical Physics
* Total i10 Index Rankings
World Ranking
1,049,943
Country Ranking
10,620
Institution Ranking
26
Mahmud Abdulsalam
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
7
7
1.000
* Total i10 Index Rankings
World Ranking
1,329,671
Country Ranking
18,102
Institution Ranking
47
Engr. Auwal Abdulkadir
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
3
3
1.000
![](https://cdn.adscientificindex.com/logos/27494.jpg)
Photovoltaics Materials and Device Engineering (Black silicon solar cells)