Zobrazeno 1 - 10
of 30
pro vyhledávání: '"Patrick Höhn"'
Publikováno v:
Volume 10: Petroleum Technology.
Torsional oscillations can cause severe damage to downhole tools and may result in expensive fishing and sidetracking operations. The drilling industry is aware of this problem and still looking for suitable solutions to determine the drivers of the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c3258cdedea4576044ebbf7310256aa6
https://doi.org/10.1115/omae2022-79543
https://doi.org/10.1115/omae2022-79543
Publikováno v:
Journal of Petroleum Science and Engineering. 213:110369
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4a9ed3553d63a642c6ebf42924b8253f
https://doi.org/10.1016/j.petrol.2022.110369
https://doi.org/10.1016/j.petrol.2022.110369
Publikováno v:
Volume 11: Petroleum Technology.
Reduction of drilling costs in the oil and gas industry and the geothermal energy sector is the main driver for major investments in drilling optimization research. The best way to reduce drilling costs is to minimize the overall time needed for dril
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f6a1f4a3df74d47a7806ee3a7c49edc0
https://doi.org/10.1115/omae2020-18677
https://doi.org/10.1115/omae2020-18677
Autor:
Patrick Höhn
Publikováno v:
Nordic Pulp & Paper Research Journal. 31:88-101
A novel dynamic model for the behavior inside of the gap of a high consistency refiner in the pulp and paper industry is presented. As the original entropy model gives additional information about ...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::816ae2e8f033725d48c8e543eee6a1f1
https://doi.org/10.3183/npprj-2016-31-01-p088-101
https://doi.org/10.3183/npprj-2016-31-01-p088-101
Publikováno v:
Volume 8: Polar and Arctic Sciences and Technology; Petroleum Technology.
Drilling equipment tests during field operations are always affected by uncertainties and variations regarding the local conditions in the borehole. In order to provide a more controlled testing environment for research, a hardware simulator was esta
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9765507725fcc81b05fedc6a4f0c33da
https://doi.org/10.1115/omae2018-77275
https://doi.org/10.1115/omae2018-77275
Autor:
Patrick Höhn, Michael Ohl
Publikováno v:
Zoosystematics and Evolution. 87:335-348
A new species of the blue mud-dauber genus Chalybion, C. sulawesii sp. n., is described from Sulawesi (Indonesia). The new species belongs in the C. fabricator species group, which up to now consisted of five rarely collected species. An identificati
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6ea3e847dd34cfecae1a740182f46e5f
https://doi.org/10.1002/zoos.201100011
https://doi.org/10.1002/zoos.201100011
Autor:
Martin Kappas, Matthias Schaefer, Patrick Höhn, Edi Guhardja, Lars Woltmann, Heiko Faust, Manfred Zeller, Teja Tscharntke, André Twele, Sonja Migge-Kleian, Stefan Schwarze, Rainer Marggraf, Damayanti Buchori, Ingolf Steffan-Dewenter, Jan Barkmann, Dietrich Hertel, Michael Kessler, Miet Maertens, Sri S. Tjitrosoedirdjo, Christoph Leuschner, Robert J. Weber, Soekisman Tjitrosoemito, Klaus Glenk, Stefan Köhler, Merijn M. Bos, Johanis P. Mogea, Ramadhaniel Pitopang, Marieke Harteveld, S. Robbert Gradstein, Simone G. Sporn, Andrea Steingrebe, Gerhard Gerold, Stefan Erasmi
Publikováno v:
Proceedings of the National Academy of Sciences. 104:4973-4978
Losses of biodiversity and ecosystem functioning due to rainforest destruction and agricultural intensification are prime concerns for science and society alike. Potentially, ecosystems show nonlinear responses to land-use intensification that would
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ee9ba543ce7f268edf45014408d8b830
https://doi.org/10.1073/pnas.0608409104
https://doi.org/10.1073/pnas.0608409104
Autor:
Patrick Höhn, Wolfgang Birk
Publikováno v:
CCA
This paper presents a concept for energy optimization dealing with high consistency (HC) refining processes in the pulp and paper industry. Models for the outlet consistency and Gurley number used ...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::db480611cc3d6cc43cb8b83d9688e042
https://doi.org/10.1109/cca.2014.6981351
https://doi.org/10.1109/cca.2014.6981351
Autor:
Patrick Höhn, Wolfgang Birk
Publikováno v:
CCA
This paper deals with the sensitivity analysis of models for the high consistency refining process in the pulp and paper industry. Several models reported in literature are considered, which are screened for their potential use in thedesign of contro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d3c73aa1bd4916b80bc6bcc96c46c485
http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-33981
http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-33981
Autor:
Ramadhaniel Pitopang, Simone G. Sporn, Ingolf Steffan-Dewenter, Jürgen Kluge, Stefan Abrahamczyk, Christian H. Schulze, S. Robbert Gradstein, Patrick Höhn, Teja Tscharntke, Damayanti Buchori, Michael Kessler, Dadang Dwi Putra, Friederike Orend, Shahabuddin Saleh, Sri S. Tjitrosoedirdjo, Merijn M. Bos
Publikováno v:
Ecological applications : a publication of the Ecological Society of America. 19(8)
Assessing the overall biological diversity of tropical rain forests is a seemingly insurmountable task for ecologists. Therefore, researchers frequently sample selected taxa that they believe reflect general biodiversity patterns. Usually, these stud
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8637ff8b87ab47e135f331eb9c7db871
https://pubmed.ncbi.nlm.nih.gov/20014584
https://pubmed.ncbi.nlm.nih.gov/20014584