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
24,250
Country Rank
104
Institution Rank : 12
![](https://cdn.adscientificindex.com/logos/8529.jpg)
![South Africa](/flags/za.png)
![Umezuruike Linus Opara](https://cdn.adscientificindex.com/pictures/57/91721.jpg)
Postharvest Technology
Food Science and Technology
Biosystems Engineering
Horticultural Science
Pomegranate
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
227
216
0.952
* Total i10 Index Rankings
World Rank
338,879
Country Rank
176
Institution Rank : 18
![](https://cdn.adscientificindex.com/logos/10905.png)
![Ghana](/flags/gh.png)
![Ernest Teye](https://cdn.adscientificindex.com/pictures/c2/97237.jpg)
Agri-Food Science and Systerms
Postharvest Technology
Food Engineering
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
41
36
0.878
* Total i10 Index Rankings
World Rank
2,129,829
Country Rank
6,077
Institution Rank : 954
![](https://cdn.adscientificindex.com/logos/10905.png)
![Ghana](/flags/gh.png)
![Emmanuel Ebo Atobrah](/pictures/71/4939962.jpg)
Food Science and Technology
Agriculture
Food Biochemistry
Food Processing and Engineering
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
0
0
0
* Total i10 Index Rankings
World Ranking
24,250
Country Ranking
104
Institution Ranking
12
Umezuruike Linus Opara
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
227
216
0.952
![](https://cdn.adscientificindex.com/logos/8529.jpg)
Postharvest Technology
Food Science and Technology
Biosystems Engineering
Horticultural Science
Pomegranate
* Total i10 Index Rankings
World Ranking
338,879
Country Ranking
176
Institution Ranking
18
Ernest Teye
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
41
36
0.878
![](https://cdn.adscientificindex.com/logos/10905.png)
Agri-Food Science and Systerms
Postharvest Technology
Food Engineering
* Total i10 Index Rankings
World Ranking
2,129,829
Country Ranking
6,077
Institution Ranking
954
Emmanuel Ebo Atobrah
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
0
0
0
![](https://cdn.adscientificindex.com/logos/10905.png)
Food Science and Technology
Agriculture
Food Biochemistry
Food Processing and Engineering