J.O. Johnsen

1.8k total citations · 1 hit paper
12 papers, 1.4k citations indexed

About

J.O. Johnsen is a scholar working on Process Chemistry and Technology, Animal Science and Zoology and Health, Toxicology and Mutagenesis. According to data from OpenAlex, J.O. Johnsen has authored 12 papers receiving a total of 1.4k indexed citations (citations by other indexed papers that have themselves been cited), including 6 papers in Process Chemistry and Technology, 5 papers in Animal Science and Zoology and 4 papers in Health, Toxicology and Mutagenesis. Recurrent topics in J.O. Johnsen's work include Odor and Emission Control Technologies (6 papers), Effects of Environmental Stressors on Livestock (5 papers) and Air Quality and Health Impacts (4 papers). J.O. Johnsen is often cited by papers focused on Odor and Emission Control Technologies (6 papers), Effects of Environmental Stressors on Livestock (5 papers) and Air Quality and Health Impacts (4 papers). J.O. Johnsen collaborates with scholars based in United Kingdom, Germany and Denmark. J.O. Johnsen's co-authors include G.H. Uenk, R.P. White, R.W. Sneath, V.R. Phillips, Marc Schröder, J.H.M. Metz, J. Seedorf, C.M. Wathes, J.L. Short and Madronna Holden and has published in prestigious journals such as Computers and Electronics in Agriculture, Journal of Insect Physiology and Biosystems Engineering.

In The Last Decade

J.O. Johnsen

12 papers receiving 1.2k citations

Hit Papers

align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

Concentrations and Emissions of Ammonia in Livestock Buildings in Northern Europe

1998 379 citations P.W.G. Groot Koerkamp, J.H.M. Metz et al. Journal of Agricultural Engineering Research profile →

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name	h						Papers	Cites
J.O. Johnsen United Kingdom	10	850	667	310	189	186	12	1.4k
G.H. Uenk United Kingdom	9	868 1.0×	677 1.0×	275 0.9×	195 1.0×	151 0.8×	13	1.3k
K.H. Linkert United Kingdom	8	839 1.0×	665 1.0×	272 0.9×	189 1.0×	151 0.8×	8	1.3k
Madronna Holden United Kingdom	10	970 1.1×	761 1.1×	323 1.0×	216 1.1×	169 0.9×	15	1.5k
S. Pedersen Germany	12	829 1.0×	792 1.2×	275 0.9×	169 0.9×	135 0.7×	18	1.4k
Hisamitsu Takai Denmark	17	1.1k 1.3×	985 1.5×	337 1.1×	222 1.2×	213 1.1×	34	1.7k
J.L. Short United Kingdom	16	968 1.1×	730 1.1×	292 0.9×	231 1.2×	373 2.0×	22	1.6k
J. Seedorf Germany	17	1.0k 1.2×	898 1.3×	379 1.2×	209 1.1×	186 1.0×	38	1.7k
K. A. Janni United States	22	633 0.7×	371 0.6×	365 1.2×	173 0.9×	129 0.7×	101	1.4k
R.W. Sneath United Kingdom	22	1.3k 1.6×	888 1.3×	372 1.2×	289 1.5×	276 1.5×	51	2.3k
N.W.M. Ogink Netherlands	26	1.2k 1.4×	676 1.0×	439 1.4×	232 1.2×	290 1.6×	144	2.0k

Countries citing papers authored by J.O. Johnsen

Since Specialization

Citations

This map shows the geographic impact of J.O. Johnsen's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by J.O. Johnsen with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites J.O. Johnsen more than expected).

Fields of papers citing papers by J.O. Johnsen

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by J.O. Johnsen. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by J.O. Johnsen. The network helps show where J.O. Johnsen may publish in the future.

Co-authorship network of co-authors of J.O. Johnsen

This figure shows the co-authorship network connecting the top 25 collaborators of J.O. Johnsen. A scholar is included among the top collaborators of J.O. Johnsen based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with J.O. Johnsen. J.O. Johnsen is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

Sort: Min cites: Since: Top N: Style:

12 of 12 papers shown

1.

Bjerg, Bjarne, et al.. (2002). Modelling of a Wall Inlet in Numerical Simulation of Airflow in Livestock Buildings. eCommons (Cornell University). 5 indexed citations

2.

Bjerg, Bjarne, et al.. (2002). SE—Structures and Environment. Biosystems Engineering. 82(4). 463–468. 4 indexed citations

3.

Bjerg, Bjarne, et al.. (2002). Modeling of air inlets in CFD prediction of airflow in ventilated animal houses. Computers and Electronics in Agriculture. 34(1-3). 223–235. 57 indexed citations

4.

Pedersen, S., Hisamitsu Takai, J.O. Johnsen, et al.. (1998). A Comparison of Three Balance Methods for Calculating Ventilation Rates in Livestock Buildings. Journal of Agricultural Engineering Research. 70(1). 25–37. 103 indexed citations

5.

Seedorf, J., J. Hartung, Marc Schröder, et al.. (1998). A Survey of Ventilation Rates in Livestock Buildings in Northern Europe. Journal of Agricultural Engineering Research. 70(1). 39–47. 77 indexed citations

6.

Takai, Hisamitsu, S. Pedersen, J.O. Johnsen, et al.. (1998). Concentrations and Emissions of Airborne Dust in Livestock Buildings in Northern Europe. Journal of Agricultural Engineering Research. 70(1). 59–77. 266 indexed citations

7.

Seedorf, J., J. Hartung, Marc Schröder, et al.. (1998). Temperature and Moisture Conditions in Livestock Buildings in Northern Europe. Journal of Agricultural Engineering Research. 70(1). 49–57. 61 indexed citations

8.

Wathes, C.M., V.R. Phillips, Madronna Holden, et al.. (1998). Emissions of Aerial Pollutants in Livestock Buildings in Northern Europe: Overview of a Multinational Project. Journal of Agricultural Engineering Research. 70(1). 3–9. 74 indexed citations

9.

Seedorf, J., J. Hartung, Marc Schröder, et al.. (1998). Concentrations and Emissions of Airborne Endotoxins and Microorganisms in Livestock Buildings in Northern Europe. Journal of Agricultural Engineering Research. 70(1). 97–109. 214 indexed citations

10.

Phillips, V.R., Madronna Holden, R.W. Sneath, et al.. (1998). The Development of Robust Methods for Measuring Concentrations and Emission Rates of Gaseous and Particulate Air Pollutants in Livestock Buildings. Journal of Agricultural Engineering Research. 70(1). 11–24. 82 indexed citations

11.

Koerkamp, P.W.G. Groot, J.H.M. Metz, G.H. Uenk, et al.. (1998). Concentrations and Emissions of Ammonia in Livestock Buildings in Northern Europe. Journal of Agricultural Engineering Research. 70(1). 79–95. 379 indexed citations breakdown →

12.

Johnsen, J.O., et al.. (1964). A sex pheromone in the housefly, Musca domestica L.. Journal of Insect Physiology. 10(2). 239–246. 65 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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