Zobrazeno 1 - 10
of 22
pro vyhledávání: '"Rolf Sand"'
Publikováno v:
Journal of Materials Research and Technology, Vol 27, Iss , Pp 5165-5176 (2023)
Machine learning is extensively utilized for predicting creep rupture of high-temperature steels. Recently, five soft-constrained machine learning algorithms (SCMLAs) have been developed to enhance the extrapolation capabilities of machine learning.
Externí odkaz:
https://doaj.org/article/e0e45cd1229542f89108bf3cec3e0164
Publikováno v:
Journal of Materials Research and Technology, Vol 25, Iss , Pp 3444-3457 (2023)
Premature and unexpected creep damage is a significant concern in high-temperature engineering. Identifying outliers in creep rupture data is essential for assessing the risk of premature creep failure. This study proposes a new method to evaluate pr
Externí odkaz:
https://doaj.org/article/cc0c474dccac4f1babae796526dce427
Publikováno v:
Journal of Materials Research and Technology, Vol 22, Iss , Pp 923-937 (2023)
Creep rupture extrapolation is crucial for high-temperature materials served in power plants. Many analytical models can be used for creep rupture analysis, and fundamental models are also available. Machine learning is also an alternative. However,
Externí odkaz:
https://doaj.org/article/15d444b3e8bc469e8f8161691d74be11
Autor:
Rolf Sandström
Publikováno v:
Crystals, Vol 14, Iss 1, p 21 (2023)
There are excellent methods for modelling physical and elastic properties, for example, those based on ab initio atomistic procedures. For mechanical properties that are controlled by the motion of the dislocations, such methods have not been availab
Externí odkaz:
https://doaj.org/article/ef40bcd1cbc543a3ae92313d929a644d
Autor:
Haipeng Lin, Michael S. Long, Rolf Sander, Adrian Sandu, Robert M. Yantosca, Lucas A. Estrada, Lu Shen, Daniel J. Jacob
Publikováno v:
Journal of Advances in Modeling Earth Systems, Vol 15, Iss 2, Pp n/a-n/a (2023)
Abstract Kinetic integration of large and stiff chemical mechanisms is a computational bottleneck in models of atmospheric chemistry. It requires implicit solution of the coupled system of kinetic differential equations with time‐consuming construc
Externí odkaz:
https://doaj.org/article/33220d8e27714487b5e7eff080cec00c
Autor:
Basem Elsaka, Xinxing Wang, Jürgen Müller, Matthias Lezius, Gerhard Heinzel, Andreas Rathke, Siavash Iran Pour, B. Doll, T. Reubelt, Michael Murböck, Hansjörg Dittus, Wolfgang Schäfer, Jean Claude Raimondo, Walter Fichter, Marc Hirth, M. Gilowski, Karsten Danzmann, Benjamin Sheard, Roland Pail, Thomas Gruber, Rolf Sand, Nico Sneeuw, Ernst M. Rasel, Phillip Brieden, Christian Schubert, Ivanka Pelivan, Volker Klein, Jürgen Kusche, Frank Flechtner
Publikováno v:
Observation of the System Earth from Space-CHAMP, GRACE, GOCE and future missions
GEOTECHNOLOGIEN Science Report
Advanced Technologies in Earth Sciences
Advanced Technologies in Earth Sciences ISBN: 9783642321344
GEOTECHNOLOGIEN Science Report
Advanced Technologies in Earth Sciences
Advanced Technologies in Earth Sciences ISBN: 9783642321344
The project “Future Gravity Field Satellite Missions” (FGM) was a logical consequence of two previous phases in Theme 2 “Observation of the System Earth from Space” in the BMBF/DFG (Federal Ministry of Education and Research/German Research F
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ef6ab6e63c3d1c6cbd5065aeb294ed13
http://gfzpublic.gfz-potsdam.de/pubman/item/escidoc:247809
http://gfzpublic.gfz-potsdam.de/pubman/item/escidoc:247809
Autor:
Rolf Sandström
Publikováno v:
Materials, Vol 16, Iss 9, p 3542 (2023)
Creep strain versus time curves (creep curves) have traditionally been described with the help of empirical models where a number of adjustable parameters are involved. These models are simple to use, but they cannot be applied for prediction. For un
Externí odkaz:
https://doaj.org/article/20b20d2e2cc0446280cf34cf2f84837f
Autor:
Jakob Mechler, Karin Lindqvist, Per Carlbring, Peter Lilliengren, Fredrik Falkenström, Gerhard Andersson, Naira Topooco, Robert Johansson, Nick Midgley, Julian Edbrooke-Childs, Hanne-Sofie J. Dahl, Rolf Sandell, Agneta Thorén, Randi Ulberg, Katja Lindert Bergsten, Björn Philips
Publikováno v:
Trials, Vol 21, Iss 1, Pp 1-14 (2020)
Abstract Background Adolescent depression is a common mental health problem and there is an urgent need for effective and accessible treatments. Internet-based interventions solve many obstacles for seeking and receiving treatment, thus increasing ac
Externí odkaz:
https://doaj.org/article/bcdda40de670456abfa5a1599b1bc227
Autor:
Juergen Schweizer, Bernd Paul Kunkel, G. Dempewolf, Frank Schillke, A. Litzelmann, Bernd Harnisch, Elke Schmidt, Hans Joachim Juranek, Rolf Sand
Publikováno v:
SPIE Proceedings.
In 1991 Carl Zeiss started a program to develop powerful telescopes for airborne and spaceborne earth-observation telescopes. This article summarizes some of the main result of this program. To emphasize the importance of these activities a short his
Autor:
Bernd Paul Kunkel, Dave E. Charlton, Hans Joachim Juranek, Olivier Saint-Pe, Roland Meynart, Elke Schmidt, Horst Schwarzer, Rolf Sand, Robert Davancens, Giuseppe Basile, Marino Fabbricotti, Karl-Heinz Suemnich, Winfried Posselt, L. Calamei, Philip N. Slater, Bernd Harnisch, Liz Sankus, Juergen Schweizer, Olivier Donnadieu
Publikováno v:
SPIE Proceedings.
The recent developments within the ESA funded HRIS (high resolution imaging spectrometer) technology program -- aiming at an airborne demonstrator model -- yielded rather successful subsystem developments. HRIS is designed as a true pushbroom hypersp