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Hirayama, Takashi

Okayama University, Japan

2025 Rank: 180,767

Overall Rank
Rank in SubField 1
Publications
Citations
Main Field:

Biology

SubField 1:

Plant Biology & Botany

SubField 2:

Biochemistry & Molecular Biology

Rank in SubField 1: 3,085 out of 189,757 Researchers

Data For The Year: 2025
Metrics Self-Citations Excluded All
Rank Based on Composite Score180,767199,343
Total Cites637678
H-index1414
Hm-index44
Number of Single Authored Papers22
Total Cites to Single Authored Papers00
Number of Single+First Authored Papers2020
Total Cites to Single+First Authored Papers116117
Number of Single+First+Last Authored Papers4444
Total Cites to Single+First+Last Authored Papers170176
Composite Score22
Number of Distinct Citing Papers596629
Ratio of Total Citations to Distinct Citing Papers 1.07 1.08
Self-Citation Percentage
6.05%
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Hirayama, Takashi

Okayama University, Japan

2024 Rank: 99,354

Overall Rank
Rank in SubField 1
Publications
Citations
Main Field:

Biology

SubField 1:

Plant Biology & Botany

SubField 2:

Biochemistry & Molecular Biology

Rank in SubField 1: 1,682 out of 174,582 Researchers

Data For The Year: 2024
Metrics Self-Citations Excluded All
Rank Based on Composite Score99,354115,444
Total Cites625649
H-index1414
Hm-index55
Number of Single Authored Papers22
Total Cites to Single Authored Papers22
Number of Single+First Authored Papers2020
Total Cites to Single+First Authored Papers122123
Number of Single+First+Last Authored Papers4444
Total Cites to Single+First+Last Authored Papers195197
Composite Score22
Number of Distinct Citing Papers585606
Ratio of Total Citations to Distinct Citing Papers 1.07 1.07
Self-Citation Percentage
3.70%
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Hirayama, Takashi

Okayama University, Japan

2023 Rank: 108,684

Overall Rank
Rank in SubField 1
Publications
Citations
Main Field:

Biology

SubField 1:

Plant Biology & Botany

SubField 2:

Biochemistry & Molecular Biology

Rank in SubField 1: 1,896 out of 160,286 Researchers

Data For The Year: 2023
Metrics Self-Citations Excluded All
Rank Based on Composite Score108,684123,705
Total Cites700756
H-index1414
Hm-index44
Number of Single Authored Papers22
Total Cites to Single Authored Papers11
Number of Single+First Authored Papers1919
Total Cites to Single+First Authored Papers162165
Number of Single+First+Last Authored Papers4242
Total Cites to Single+First+Last Authored Papers233244
Composite Score22
Number of Distinct Citing Papers638683
Ratio of Total Citations to Distinct Citing Papers 1.10 1.11
Self-Citation Percentage
7.41%
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Hirayama, Takashi

Okayama University, Japan

2022 Rank: 143,749

Overall Rank
Rank in SubField 1
Publications
Citations
Main Field:

Biology

SubField 1:

Plant Biology & Botany

SubField 2:

Biochemistry & Molecular Biology

Rank in SubField 1: 2,380 out of 148,322 Researchers

Data For The Year: 2022
Metrics Self-Citations Excluded All
Rank Based on Composite Score143,749112,468
Total Cites628669
H-index1314
Hm-index44
Number of Single Authored Papers22
Total Cites to Single Authored Papers02
Number of Single+First Authored Papers1919
Total Cites to Single+First Authored Papers133138
Number of Single+First+Last Authored Papers4141
Total Cites to Single+First+Last Authored Papers197210
Composite Score22
Number of Distinct Citing Papers577603
Ratio of Total Citations to Distinct Citing Papers 1.09 1.11
Self-Citation Percentage
6.13%
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Hirayama, Takashi

Okayama University, Japan

2021 Rank: 148,054

Overall Rank
Rank in SubField 1
Publications
Citations
Main Field:

Biology

SubField 1:

Plant Biology & Botany

SubField 2:

Biochemistry & Molecular Biology

Rank in SubField 1: 2,340 out of 134,814 Researchers

Data For The Year: 2021
Metrics Self-Citations Excluded All
Rank Based on Composite Score148,054124,124
Total Cites900955
H-index1717
Hm-index55
Number of Single Authored Papers11
Total Cites to Single Authored Papers02
Number of Single+First Authored Papers1818
Total Cites to Single+First Authored Papers204211
Number of Single+First+Last Authored Papers4040
Total Cites to Single+First+Last Authored Papers302320
Composite Score22
Number of Distinct Citing Papers814852
Ratio of Total Citations to Distinct Citing Papers 1.11 1.12
Self-Citation Percentage
5.76%
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Hirayama, Takashi

Okayama University, Japan

2020 Rank: 109,195

Overall Rank
Rank in SubField 1
Publications
Citations
Main Field:

Biology

SubField 1:

Plant Biology & Botany

SubField 2:

Biochemistry & Molecular Biology

Rank in SubField 1: 1,611 out of 113,961 Researchers

Data For The Year: 2020
Metrics Self-Citations Excluded All
Rank Based on Composite Score109,195127,862
Total Cites645677
H-index1414
Hm-index44
Number of Single Authored Papers11
Total Cites to Single Authored Papers11
Number of Single+First Authored Papers1717
Total Cites to Single+First Authored Papers170172
Number of Single+First+Last Authored Papers3636
Total Cites to Single+First+Last Authored Papers255260
Composite Score22
Number of Distinct Citing Papers576603
Ratio of Total Citations to Distinct Citing Papers 1.12 1.12
Self-Citation Percentage
4.73%
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