TY  - JOUR
A1  - Hoffschmidt, Bernhard
A1  - Riffelmann, K.-J.
A1  - Krödel, M.
A1  - Rietbrock, P.
T1  - PHITREC - pressurized volumetric air receiver for high temperature solar applications / K.-J. Riffelmann ; B. Hofschmidt ...
JF  - Forschungsbericht : DLR FB. 10 (2001)
Y1  - 2001
SN  - 0939-2963
N1  - 2. ISSN: 1434-8454 ; Kölner Sonnenkolloquium <5, 2001, Köln> ; Solar thermal power plants and solar chemical processes : advances and perspectives for international cooperation
SP  - 73
EP  - 74
ER  - 
TY  - JOUR
A1  - Mikulics, M.
A1  - Marso, M.
A1  - Cámara Mayorga, I.
A1  - Gusten, R.
A1  - Stancek, S.
A1  - Michael, E. A.
A1  - Schieder, R.
A1  - Wolter, M.
A1  - Buca, D.
A1  - Förster, Arnold
A1  - Kordos, P.
A1  - Lüth, H.
T1  - Photomixers fabricated on nitrogen-ion-implanted GaAs
JF  - Applied physics letters. 87 (2005)
Y1  - 2005
SP  - 041106-1
EP  - 041106-3
ER  - 
TY  - JOUR
A1  - Förster, Arnold
A1  - Belyaev, A. E.
A1  - Vitusevich, S.A.
A1  - Eaves, L.
T1  - Photoresponse spectra in p-i-n diodes containing quantum dots. Belyaev, A.E.; Vitusevich, S.A.; Eaves, L.; Main, P.C.; Henini, M.; Förster, A.; Reetz, W.; Danylyuk, S.V.
JF  - Nanotechnology. 13 (2002), H. 1
Y1  - 2002
SP  - 94
EP  - 96
ER  - 
TY  - JOUR
A1  - Michel, Philipp
A1  - Butenweg, Christoph
A1  - Kinkel, Sven
T1  - Pile-grid foundations of onshore wind turbines considering soil-structure-interaction under seismic loading
JF  - Soil Dynamics and Earthquake Engineering
N2  - In recent years, many onshore wind turbines are erected in seismic active regions and on soils with poor load bearing capacity, where pile grids are inevitable to transfer the loads into the ground. In this contribution, a realistic multi pile grid is designed to analyze the dynamics of a wind turbine tower including frequency dependent soil-structure-interaction. It turns out that different foundations on varying soil configurations heavily influence the vibration response. While the vibration amplitude is mostly attenuated, certain unfavorable combinations of structure and soil parameters lead to amplification in the range of the system's natural frequencies. This testifies the need for overall dynamic analysis in the assessment of the dynamic stability and the holistic frequency tuning of the turbines.
Y1  - 2018
U6  - https://doi.org/10.1016/j.soildyn.2018.03.009
SN  - 0267-7261
VL  - 109
SP  - 299
EP  - 311
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - JOUR
A1  - Förster, Arnold
A1  - Bertuccio, G.
A1  - Pullia, A.
T1  - Pixel X-ray detectors in epitaxial gallium arsenide withhigh-energy resolution capabilities (Fano factor experimentaldetermination) /  G. Bertuccio ; A. Pullia ; J. Lauter ; A. Förster ...
JF  - IEEE transactions on nuclear science. 44 (1997), H. 1
Y1  - 1997
SN  - 0018-9499
SP  - 1
EP  - 5
ER  - 
TY  - JOUR
A1  - Schult, O. W. B.
A1  - Sistemich, K.
A1  - Hardt, Arno
T1  - Plans for investigations of subthreshold K+ production in p+A collisions / O. W. B. Schult [u.a.]
JF  - Nuclear Physics A. Vol. 583
Y1  - 1995
SN  - 1873-1554 (E-journal); 0375-9474 (Print)
SP  - 629
EP  - 632
ER  - 
TY  - CHAP
A1  - Brüssermann, Klaus
T1  - Platform of Excellence in "Energy and Environment"
N2  - The Ministry of Science and Research in North Rhine-Westphalia created eight platforms of excellence, one in the research area „Energy and Environment“ in 2002 at ACUAS. This platform concentrates the research and development of 13 professors in Jülich and Aachen and of two scientific institutes with different topics: – NOWUM-Energy with emphasis on efficient and economic energy conversion – The Solar Institute Jülich – SIJ – being the largest research institute in the field of renewables at a University of Applied Sciences in Germany With this platform each possible energy conversion – nuclear, fossil, renewable- can be dealt with to help solving the two most important problems of mankind, energy and potable water. At the CSE are presented the historical development, some research results and the combined master studies in „Energy Systems“ and „Nuclear Applications“
KW  - Energietechnik
KW  - Kernenergie
KW  - Umwelt
KW  - Energy
KW  - environment
KW  - Energy Systems
KW  - Nuclear Applications
Y1  - 2005
ER  - 
TY  - CHAP
A1  - Gkatzogias, Konstantinos
A1  - Veljkoviv, Ana
A1  - Pohoryles, Daniel A.
A1  - Tsionis, Georgios
A1  - Bournas, Dionysios A.
A1  - Crowley, Helen
A1  - Norlén, Hedvig
A1  - Butenweg, Christoph
A1  - Gervasio, Helena
A1  - Manfredi, Vincenzo
A1  - Masi, Angelo
A1  - Zaharieva, Roumiana
ED  - Gkatzogias, Konstantinos
ED  - Tsionis, Georgios
T1  - Policy practice and regional impact assessment for building renovation
T2  - REEBUILD Integrated Techniques for the Seismic Strengthening & Energy Efficiency of Existing Buildings
N2  - The work presented in this report provides scientific support to building renovation policies in the EU by promoting a holistic point of view on the topic. Integrated renovation can be seen as a nexus between European policies on disaster resilience, energy efficiency and circularity in the building sector. An overview of policy measures for the seismic and energy upgrading of buildings across EU Member States identified only a few available measures for combined upgrading. Regulatory framework, financial instruments and digital tools similar to those for energy renovation, together with awareness and training may promote integrated renovation. A framework for regional prioritisation of building renovation was put forward, considering seismic risk, energy efficiency, and socioeconomic vulnerability independently and in an integrated way. Results indicate that prioritisation of building renovation is a multidimensional problem. Depending on priorities, different integrated indicators should be used to inform policies and accomplish the highest relative or most spread impact across different sectors. The framework was further extended to assess the impact of renovation scenarios across the EU with a focus on priority regions. Integrated renovation can provide a risk-proofed, sustainable, and inclusive built environment, presenting an economic benefit in the order of magnitude of the highest benefit among the separate interventions. Furthermore, it presents the unique capability of reducing fatalities and energy consumption at the same time and, depending on the scenario, to a greater extent.
Y1  - 2022
SN  - 978-92-76-60454-9
U6  - https://doi.org/10.2760/883122
SN  - 1831-9424
SP  - 1
EP  - 68
PB  - Publications Office of the European Union
CY  - Luxembourg
ER  - 
TY  - JOUR
A1  - Hoffschmidt, Bernhard
A1  - Fend, Thomas
A1  - Pitz-Paal, Robert
A1  - Reutter, Oliver
T1  - Porous materials as open volumetric solar receivers - Experimental determination of thermophysical and heat transfer properties / Thomas Fend ; Bernhard Hoffschmidt ...
JF  - Energy. 29 (2004), H. 5
Y1  - 2004
SN  - 0360-5442
SP  - 823
EP  - 834
ER  - 
TY  - JOUR
A1  - Hoffschmidt, Bernhard
A1  - Buck, R.
A1  - Fend, Thomas
T1  - Porous materials as volumetric solar receivers : experimental approach towards a detailed characterisation of instability problems / R. Buck ; T. Fend ; B. Hoffschmidt ...
JF  - Forschungsbericht : DLR FB. 10 (2001)
Y1  - 2001
SN  - 0939-2963
N1  - 2. ISSN: 1434-8454 ; Kölner Sonnenkolloquium <5, 2001, Köln> ; Solar thermal power plants and solar chemical processes : advances and perspectives for international cooperation
SP  - 71
EP  - 72
ER  - 
TY  - CHAP
A1  - Taddei, Francesca
A1  - Lozana, Lara
A1  - Michel, Philipp
A1  - Butenweg, Christoph
A1  - Klinkel, Sven
ED  - Papadrakakis, Manolis
ED  - Papadrakakis, M.
ED  - Papadopoulos, V.
ED  - Plevris, V.
T1  - Practical recommendations for the foundation design of onshore wind turbines including soil-structure interaction
T2  - 5th International Conference on Computational Methods in Structural , Hersonissos, Greece Dynamics and Earthquake Engineering, COMPDYN 2015, 25.05.2015-27.05.2015, Hersonissos, Greece.
Y1  - 2015
ER  - 
TY  - CHAP
A1  - Kumaran, P.
A1  - Gopinathan, M.
A1  - Razali, N. M.
A1  - Kuperjans, Isabel
A1  - Hariffin, B.
A1  - Hamdan, H.
T1  - Preliminary evaluation of atomization characteristics of improved biodiesel for gas turbine application
T2  - IOP Conference Series: Earth and Environmental Science (EES)
Y1  - 2013
U6  - https://doi.org/10.1088/1755-1315/16/1/012014
SN  - 1755-1315
VL  - 16
IS  - 1
SP  - 012014/1
EP  - 012014/4
PB  - Institute of Physics Publishing (IOP)
CY  - London [u.a.]
ER  - 
TY  - JOUR
A1  - Förster, Arnold
A1  - Cambel, V.
A1  - Kicin, S.
A1  - Kuliffayová, M.
T1  - Preparation of patterned GaAs structures for MEMS and MOEMS. Cambel, V.; Kicin, S.; Kuliffayová, M.; Kovácová, E.; Novák, J.; Kostic, I.; Förster, A.
JF  - Materials Science and Engineering: C. 19 (2002), H. 2
Y1  - 2002
SN  - 0928-4931
SP  - 161
EP  - 165
ER  - 
TY  - CHAP
A1  - Kern, Alexander
A1  - Dikta, Gerhard
T1  - Probability of damage of electrical and electronic systems due to indirect lightning flashes - investigation of data from German insurance companies
N2  - In the presented paper data collected from the field related to damage statistics of electrical and electronic apparatus in household are reported and investigated. These damages (total number approx. 74000 cases), registered by five German insurance companies in 2005 and 2006, were adviced by customers as caused by lightning overvoltages. With the use of stochastical methods it is possible, to reasses the collected data and to distinguish between cases, which are with high probability caused by lightning overvoltages, and those, which are not. If there was an indication for a direct strike, this case was excluded, so the focus was only on indirect lightning flashes, i.e. only flashes to ground near the structure and flashes to or nearby an incoming service line were investigated. The data from the field contain the location of damaged apparatus (residence of the policy holder) and the distances of the nearest cloud-to-ground stroke to the location of the damage registered by the German lightning location network BLIDS at the date of damage. The statistical data along with some complementary numerical simulations allow to verify the correspondence of the Standards rules used for IEC 62305-2 with the field data and to define some correction needs. The results could lead to a better understanding whether a damage reported to an insurance company is really caused by indirect lightning, or not.
KW  - Blitzschutz
KW  - lightning flash
Y1  - 2009
ER  - 
TY  - JOUR
A1  - Kern, Alexander
A1  - Schelthoff, Christof
A1  - Mathieu, Moritz
T1  - Probability of lightning strikes to air-terminations of structures using the electro-geometrical model theory and the statistics of lightning current parameters
JF  - Atmospheric Research. 104 (2011)
Y1  - 2011
SN  - 0169-8095
N1  - Article in Press
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - JOUR
A1  - Kern, Alexander
A1  - Schelthoff, Christof
A1  - Mathieu, Moritz
T1  - Probability of lightning strikes to air-terminations of structures using the electro-geometrical model theory and the statistics of lightning current parameters
Y1  - 2010
N1  - 30th International Conference on Lightning Protection, Cagliari (Italien), 2010
SP  - 750-1
EP  - 750-8
ER  - 
TY  - BOOK
A1  - Brüssermann, Klaus
T1  - Proceedings of the Workshop on Evaluation and Mitigation of Accidental Releases of Radioactivity, Identification of Uncertainties : Bad Münstereifel, Fed. Republic of Germany, April 5th - 10th, 1981
Y1  - 1982
SN  - 3-88668-014-2
N1  - Dokumentation des Workshops Abschätzung und Folgenminderung von Unfallbedingten Freisetzungen von Radioaktivität, Identifizierung und Unsicherheiten
PB  - Ges. für Umweltüberwachung
CY  - Aldenhoven
ER  - 
TY  - BOOK
A1  - Breitbach, Gerd
T1  - Proceedings of the Workshop on Structural Design Criteria for HTR : Jülich, 31. January - 1. February 1989 / ed.: G. Breitbach ... - Als Ms. gedr.
Y1  - 1989
N1  - (Berichte der Kernforschungsanlage Jülich : Jül-Conf. ; 71) ; Workshop on Structural Design Criteria for HTR <1989, Jülich>
PB  - Zentralbibliothek d. Kernforschungsanlage
CY  - Jülich
ER  - 
TY  - JOUR
A1  - Khedim, Ahmed
A1  - Schwarzer, Klemens
A1  - Faber, Christian
A1  - Müller, Christoph
T1  - Production décentralisée de l'eau potable à l'énergie solaire
JF  - Desalination. 168 (2004), H. 1-3
Y1  - 2004
SN  - 0011-9164
N1  - Sprache: Franz.
SP  - 13
EP  - 20
ER  - 
TY  - CHAP
A1  - Hellmanns, Mark
A1  - Böhm, Stefan
A1  - Dilger, Klaus
T1  - Progress of the manual application of adhesives
T2  - Proceedings of the 3rd World Congress on Adhesion and Related Phenomena : WCARP-III, October 15 -18, 2006, Beijing, China
Y1  - 2006
SP  - 275
EP  - 277
PB  - Beijing Adhesion Society of China
CY  - Beijing
ER  - 
TY  - CHAP
A1  - Sirazitdinova, Y.
A1  - Dulzon, A.
A1  - Müller, Burghard
T1  - Project management practices in engineering university
T2  - 21st International Conference for Students and Young Scientists: Modern Technique and Technologies, MTT 2015; National Research Tomsk Polytechnic UniversityTomsk; Russian Federation; 5 October 2015 through 9 October 2015
Y1  - 2015
U6  - https://doi.org/10.1088/1757-899X/93/1/012080
N1  - IOP Conference Series: Materials Science and Engineering
Vol. 93, Issue 1
ER  - 
TY  - CHAP
A1  - Striebing, Clemens
A1  - Müller, Jörg
A1  - Schraudner, Martina
A1  - Gewinner, Irina Valerie
A1  - Guerrero Morales, Patricia
A1  - Hochfeld, Katharina
A1  - Hoffman, Shekinah
A1  - Kmec, Julie A.
A1  - Nguyen, Huu Minh
A1  - Schneider, Jannick
A1  - Sheridan, Jennifer
A1  - Steuer-Dankert, Linda
A1  - Trimble O'Connor, Lindsey
A1  - Vandevelde-Rougale, Agnès
T1  - Promoting diversity and combatting discrimination in research organizations: a practitioner’s guide
T2  - Diversity and discrimination in research organizations
N2  - The essay is addressed to practitioners in research management and from
academic leadership. It describes which measures can contribute to creating an inclusive climate for research teams and preventing and effectively dealing with discrimination. The practical recommendations consider the policy and organizational levels, as well as the individual perspective of research managers. Following a series of basic recommendations, six lessons learned are formulated, derived from the contributions to the edited collection on “Diversity and Discrimination in Research Organizations.”
KW  - Inclusive work climate
KW  - lessons learned
KW  - policy recommendations
KW  - recommendations for actions
KW  - bullying
Y1  - 2022
SN  - 978-1-80117-959-1 (Print)
SN  - 978-1-80117-956-0 (Online)
U6  - https://doi.org/10.1108/978-1-80117-956-020221012
SP  - 421
EP  - 442
PB  - Emerald Publishing Limited
CY  - Bingley
ER  - 
TY  - JOUR
A1  - Förster, Arnold
A1  - Kordos, P.
A1  - Ruders, F.
T1  - Properties of LT MBE GaAs for photomixing up to THz frequencies / P. Kordos ; F. Ruders ; M. Marso ; A. Förster
JF  - Proceedings : 8 - 11 December 1996, Australian National University, Canberra, Australia / ed.: C. Jagadish
Y1  - 1997
SN  - 0-7803-3374-8
N1  - Conference on Optoelectronic and Microelectronic Materials and Devices <1996, Canberra> ; IEEE catalog number: 96TH8197
SP  - 71
EP  - ff.
PB  - IEEE Service Center
CY  - Piscataway, NJ
ER  - 
TY  - JOUR
A1  - Förster, Arnold
A1  - Lachenmann, S. G.
A1  - Kastalsky, A.
T1  - Properties of Nb/InAs/Nb hybrid step junctions / S. G. Lachenmann ; A. Kastalsky ; I. Friedrich ; A. Förster ...
JF  - Journal of low temperature physics. 106 (1997), H. 3-4
Y1  - 1997
SN  - 0022-2291
N1  - ISSN der E-Ausg.: 1573-7357
SP  - 321
EP  - 326
ER  - 
TY  - JOUR
A1  - Dellmann, Sophia Florence
A1  - Glorius, J.
A1  - Litvinov, Yu A.
A1  - Reifarth, R.
A1  - Al-Khasawneh, Kafa
A1  - Aliotta, M.
A1  - Bott, L.
A1  - Brückner, Benjamin
A1  - Bruno, C. G.
A1  - Chen, Ruijiu
A1  - Davinson, T.
A1  - Dickel, T.
A1  - Dillmann, Iris
A1  - Dmytriev, D.
A1  - Erbacher, P.
A1  - Freire-Fernández, D.
A1  - Forstner, Oliver
A1  - Geissel, H.
A1  - Göbel, K.
A1  - Griffin, Christopher J.
A1  - Grisenti, R.
A1  - Gumberidze, Alexandre
A1  - Haettner, Emma
A1  - Hagmann, Siegbert
A1  - Heil, M.
A1  - Heß, R.
A1  - Hillenbrand, P.-M.
A1  - Joseph, R.
A1  - Jurado, B.
A1  - Kozhuharov, Christophor
A1  - Kulikov, I.
A1  - Löher, Bastian
A1  - Langer, Christoph
A1  - Leckenby, Guy
A1  - Lederer-Woods, C.
A1  - Lestinsky, M.
A1  - Litvinov, S. A.
A1  - Lorenz, B. A.
A1  - Lorenz, E.
A1  - Marsh, J.
A1  - Menz, Esther Babette
A1  - Morgenroth, T.
A1  - Petridis, N.
A1  - Pibernat, Jerome
A1  - Popp, U.
A1  - Psaltis, Athanasios
A1  - Sanjari, Shahab
A1  - Scheidenberger, C.
A1  - Sguazzin, M.
A1  - Sidhu, Ragandeep Singh
A1  - Spillmann, Uwe
A1  - Steck, M.
A1  - Stöhlker, T.
A1  - Surzhykov, A.
A1  - Swartz, J. A.
A1  - Törnqvist, H.
A1  - Varga, L.
A1  - Vescovi, Diego
A1  - Weick, H.
A1  - Weigand, M.
A1  - Woods, P.
A1  - Xing, Y.
A1  - Yamaguchi, Taiyo
T1  - Proton capture on stored radioactive ¹¹⁸Te ions
JF  - EPJ Web of Conferences
N2  - Experimental determination of the cross sections of proton capture on radioactive nuclei is extremely difficult. Therefore, it is of substantial interest for the understanding of the production of the p-nuclei. For the first time, a direct measurement of proton-capture cross sections on stored, radioactive ions became possible in an energy range of interest for nuclear astrophysics. The experiment was performed at the Experimental Storage Ring (ESR) at GSI by making use of a sensitive method to measure (p,γ) and (p,n) reactions in inverse kinematics. These reaction channels are of high relevance for the nucleosyn-thesis processes in supernovae, which are among the most violent explosions in the universe and are not yet well understood. The cross section of the ¹¹⁸Te(p,γ) reaction has been measured at energies of 6 MeV/u and 7 MeV/u. The heavy ions interacted with a hydrogen gas jet target. The radiative recombination process of the fully stripped ¹¹⁸Te ions and electrons from the hydrogen target was used as a luminosity monitor. An overview of the experimental method and preliminary results from the ongoing analysis will be presented.
Y1  - 2023
U6  - https://doi.org/10.1051/epjconf/202327911018
SN  - 2100-014X
N1  - Volume 279, 2023. Nuclear Physics in Astrophysics – X (NPA-X 2022).
VL  - 279
IS  - Article Number: 11018
SP  - 1
EP  - 5
PB  - EDP Sciences
ER  - 
TY  - CHAP
A1  - Hellmanns, Mark
A1  - Hartung, I.
A1  - Dilger, Klaus
A1  - Böhm, Stefan
T1  - Quality assurance of manual guided joining and welding devices
T2  - Proceedings of the IIW International Conference on Advances in Welding and Allied Technologies : July 16 - 17, 2009, Singapore
Y1  - 2009
SN  - 9789810832605
SP  - 219
EP  - 222
PB  - International Institute of Welding
CY  - Roissy
ER  - 
TY  - BOOK
A1  - Pieper, Martin
T1  - Quantum mechanics: Introduction to mathematical formulation
N2  - Anyone who has always wanted to understand the hieroglyphs on Sheldon's blackboard in the TV series The Big Bang Theory or who wanted to know exactly what the fate of Schrödinger's cat is all about will find a short, descriptive introduction to the world of quantum mechanics in this essential. The text particularly focuses on the mathematical description in the Hilbert space. The content goes beyond popular scientific presentations, but is nevertheless suitable for readers without special prior knowledge thanks to the clear examples.
KW  - Quantenmechanik
KW  - Hilbert Room
KW  - Postulates
KW  - Schrödingers cat
KW  - Operators
Y1  - 2021
SN  - 978-3-658-32644-9
SN  - 978-3-658-32645-6
U6  - https://doi.org/10.1007/978-3-658-32645-6
PB  - Springer
CY  - Wiesbaden
ER  - 
TY  - JOUR
A1  - Maezawa, Koichi
A1  - Förster, Arnold
T1  - Quantum transport devices based on resonant tunneling
JF  - Nanoelectronics and information technology : advanced electronic materials and novel devices / Rainer Waser (ed.).
Y1  - 2003
SN  - 3-527-40363-9
SP  - 407
EP  - 424
PB  - Wiley-VCH
CY  - Weinheim
ER  - 
TY  - JOUR
A1  - Förster, Arnold
A1  - Schmidt, T.
A1  - Tewordt, M.
A1  - Blick, R. H.
T1  - Quantum-dot ground states in a magnetic field studied by single-electron tunneling spectroscopy on double-barrier heterostructures / T. Schmidt ; M. Tewordt ; R. H. Blick ... A. Förster ...
JF  - Physical Review B . 51 (1995), H. 8
Y1  - 1995
SN  - 0163-1829
N1  - 2. ISSN: 1098-0121 ; ISSN der E-Ausg.: 1095-3795
SP  - 5570
EP  - 5573
ER  - 
TY  - JOUR
A1  - Förster, Arnold
A1  - Lohe, C.
A1  - Leuther, A.
T1  - Quasi-two-dimensional plasmons of a single &#948;-doped layer in GaAs studied by high-resolution electron-energy-loss spectroscopy / C. Lohe ; A. Leuther ; A. Förster ...
JF  - Physical Review B . 47 (1993), H. 7
Y1  - 1993
SN  - 0163-1829
N1  - 2. ISSN: 1098-0121 ; ISSN der E-Ausg.: 1095-3795
SP  - 3819
EP  - 3826
ER  - 
TY  - JOUR
A1  - Hoyler, Friedrich
A1  - Börner, H. G.
A1  - Robinson, S.
T1  - Recent developments at the ILL (n,&#947;)-facility
JF  - Journal of Physics G. 14 (1988), H. S
Y1  - 1988
SN  - 0305-4616
SP  - S161
EP  - S165
ER  - 
TY  - JOUR
A1  - Vogt, C.
A1  - Mottaghy, Darius
A1  - Wolf, A.
A1  - Rath, V.
A1  - Pechnig, R.
A1  - Clauser, C.
T1  - Reducing temperature uncertainties by stochastic geothermal reservoir modelling
JF  - Geophysical Journal International
N2  - Quantifying and minimizing uncertainty is vital for simulating technically and economically successful geothermal reservoirs. To this end, we apply a stochastic modelling sequence, a Monte Carlo study, based on (i) creating an ensemble of possible realizations of a reservoir model, (ii) forward simulation of fluid flow and heat transport, and (iii) constraining post-processing using observed state variables. To generate the ensemble, we use the stochastic algorithm of Sequential Gaussian Simulation and test its potential fitting rock properties, such as thermal conductivity and permeability, of a synthetic reference model and—performing a corresponding forward simulation—state variables such as temperature. The ensemble yields probability distributions of rock properties and state variables at any location inside the reservoir. In addition, we perform a constraining post-processing in order to minimize the uncertainty of the obtained distributions by conditioning the ensemble to observed state variables, in this case temperature. This constraining post-processing works particularly well on systems dominated by fluid flow. The stochastic modelling sequence is applied to a large, steady-state 3-D heat flow model of a reservoir in The Hague, Netherlands. The spatial thermal conductivity distribution is simulated stochastically based on available logging data. Errors of bottom-hole temperatures provide thresholds for the constraining technique performed afterwards. This reduce the temperature uncertainty for the proposed target location significantly from 25 to 12 K (full distribution width) in a depth of 2300 m. Assuming a Gaussian shape of the temperature distribution, the standard deviation is 1.8 K. To allow a more comprehensive approach to quantify uncertainty, we also implement the stochastic simulation of boundary conditions and demonstrate this for the basal specific heat flow in the reservoir of The Hague. As expected, this results in a larger distribution width and hence, a larger, but more realistic uncertainty estimate. However, applying the constraining post-processing the uncertainty is again reduced to the level of the post-processing without stochastic boundary simulation. Thus, constraining post-processing is a suitable tool for reducing uncertainty estimates by observed state variables.
Y1  - 2010
U6  - https://doi.org/10.1111/j.1365-246X.2009.04498.x
SN  - 1365-246X
VL  - 181
IS  - 1
SP  - 321
EP  - 333
PB  - Oxford University Press
CY  - Oxford
ER  - 
TY  - JOUR
A1  - Förster, Arnold
A1  - Schäpers, T.
A1  - Müller, F.
A1  - Lengeler, B.
T1  - Reflection and transmission of ballistic electrons at a potential barrier / Schäpers, T.  ; Müller, F.  ; Förster, A. ; Lengeler, B. ; Lüth, H.
JF  - Superlattices and microstructures . 14 (1993), H. 1
Y1  - 1993
SN  - 0749-6036
SP  - 57
ER  - 
TY  - CHAP
A1  - Milkova, Kristina
A1  - Butenweg, Christoph
A1  - Dumova-Jovanoska, Elena
T1  - Region-sensitive comprehensive procedure for determination of seismic fragility curves
T2  - 1st Croatian Conference on Earthquake Engineering 1CroCEE
N2  - Seismic vulnerability estimation of existing structures is unquestionably interesting topic of high priority, particularly after earthquake events. Having in mind the vast number of old masonry buildings in North Macedonia serving as public institutions, it is evident that the structural assessment of these buildings is an issue of great importance. In this paper, a comprehensive methodology for the development of seismic fragility curves of existing masonry buildings is presented. A scenario – based method that incorporates the knowledge of the tectonic style of the considered region, the active fault characterization, the earth crust model and the historical seismicity (determined via the Neo Deterministic approach) is used for calculation of the necessary response spectra. The capacity of the investigated masonry buildings has been determined by using nonlinear static analysis. MINEA software (SDA Engineering) is used for verification of the structural safety of the structures Performance point, obtained from the intersection of the capacity of the building and the spectra used, is selected as a response parameter. The thresholds of the spectral displacement are obtained by splitting the capacity curve into five parts, utilizing empirical formulas which are represented as a function of yield displacement and ultimate displacement. As a result, four levels of damage limit states are determined. A maximum likelihood estimation procedure for the process of fragility curves determination is noted as a final step in the proposed procedure. As a result, region specific series of vulnerability curves for structures are defined.
KW  - seismic risk
KW  - seismic vulnerability
KW  - fragility curves
KW  - masonry structures
Y1  - 2021
U6  - https://doi.org/10.5592/CO/1CroCEE.2021.158
N1  - 1st Croatian Conference on Earthquake Engineering 1CroCEE 2021, 22.–24. März 2021, University of Zagreb Faculty of Civil Engineering, Zagreb, Croatia
SP  - 121
EP  - 128
PB  - University of Zagreb
CY  - Zagreb
ER  - 
TY  - CHAP
A1  - Stollenwerk, Dominik
A1  - Kuvarakul, T.
A1  - Kuperjans, Isabel
T1  - Renewable energy supply for power dominated, energy intense production processes - a systematic conversion approach for the anodizing process
T2  - IOP conference series: Earth and environmental science (EES)
Y1  - 2013
SN  - 1755-1315
SN  - 1755-1307
VL  - Vol. 16
IS  - H. 1
SP  - 012142/1
EP  - 012142/4
ER  - 
TY  - CHAP
A1  - Hartung, I.
A1  - Dilger, Klaus
A1  - Hellmanns, Mark
A1  - Böhme, Stefan
T1  - Repair of non-weldable steel structures to extend the life cycle
T2  - Proceedings of the IIW International Conference on Advances in Welding and Allied Technologies : July 16 - 17, 2009, Singapore. (Welding in the world ; 53.2009, special issue)
Y1  - 2009
SN  - 978-981-08-3259-9
SP  - 569
EP  - 574
PB  - Springer
CY  - Berlin [u.a.]
ER  - 
TY  - JOUR
A1  - Helsper, Christoph
A1  - Mölter, W.
A1  - Haller, P.
T1  - Representative Dilution of Aerosols by a Factor of 10,000
JF  - Journal of Aerosol Science. 21 (1990), H. Suppl. 1
Y1  - 1990
SN  - 0021-8502
SP  - 637
EP  - 640
ER  - 
TY  - CHAP
A1  - Cresser, J. D.
A1  - Häger, J.
A1  - Leuchs, G.
A1  - Rateike, Franz-Matthias
A1  - Walther, H.
T1  - Resonance fluorescence of atoms in strong monochromatic laser fields
T2  - Dissipative systems in quantum optics.  Ed. by Rodolfo Bonifacio. Topics in current physics. Vol. 27
N2  - The investigation of atomic resonance fluorescence has always been of special interest as a means for the determination of atomic parameters. In addition, information on the interaction mechanism between atoms and radiation can be obtained. In the standard fluorescence experiment the frequency distribution of the incident photons is larger than the natural width of the respective transition; as a consequence the correlation time in the photon-atom interaction is determined by the lifetime of the atoms in the excited state. With the development of lasers and especially of tunable dye lasers in recent years it became possible to study the case where the incident radiation has a spectral distribution which is narrower than the natural width. This corresponds to a correlation time of the incoming light wave which is much longer than the excited-state lifetime. In this chapter a survey of experiments on the resonance fluorescence of atoms in monochromatic laser fields will be given.
Y1  - 1982
SN  - 978-3-642-81719-9
U6  - https://doi.org/10.1007/978-3-642-81717-5_3
SP  - 21
EP  - 59
PB  - Springer
CY  - Berlin
ER  - 
TY  - JOUR
A1  - Vitusevich, S. A.
A1  - Förster, Arnold
A1  - Lüth, H.
A1  - Belyaev, A. E.
A1  - Danylyuk, S. V.
A1  - Konakova, R. V.
A1  - Sheka, D. I.
T1  - Resonant spectroscopy of electric-field-induced superlattices
JF  - Journal of Applied Physics. 90 (2001), H. 6
Y1  - 2001
SN  - 1089-7550
U6  - https://doi.org/10.1063/1.1392956
SP  - 2857
EP  - 2861
ER  - 
TY  - JOUR
A1  - Förster, Arnold
T1  - Resonant tunneling diodes : the effect of structural properties on their performance
JF  - Festkörperprobleme = Advances in solid state physics. 33 (1994)
Y1  - 1994
SN  - 0065-3357
N1  - Review ; 2. ISSN: 0430-3393
SP  - 37
EP  - 62
ER  - 
TY  - JOUR
A1  - Förster, Arnold
T1  - Resonant tunneling diodes operating as modern quantum transport devices
JF  - Proceedings of the Tenth International Workshop on the Physics of Semiconductor Devices : (December 14 - 18, 1999) / ed.: Vikram Kumar ... - Vol. 2
Y1  - 2000
SN  - 81-7023-998-2
N1  - International Workshop on the Physics of Semiconductor Devices <10, 1999, Delhi>
SP  - 966
EP  - 966
PB  - Allied Publ.
CY  - New Delhi [u.a.]
ER  - 
TY  - JOUR
A1  - Förster, Arnold
A1  - Vitusevich, S. A.
A1  - Belyaev, A. E.
A1  - Sheka, D. I.
T1  - Resonant tunneling effect in a periodically modulated electrical field. Vitusevich, S.A.; Forster, A.; Belyaev, A.E.; Sheka, D.I.; Luth, H.; Klein, N.; Danylyuk, S.V.; Konakova, R.
JF  - Proceedings of the Tenth International Conference on Modulated Semiconductor Structures : held at the Johannes Kepler University, Linz, Austria, July 23 - 27, 2001 / MSS 10. Guest ed.: Günther Bauer ...
Y1  - 2002
N1  - International  Conference  on Modulated Semiconductor Structures ; (10, 2001, Linz). Zugleich: Physica E: Low-dimensional Systems and Nanostructures. 13(2002)2-4. ISSN 1386-9477
SP  - 811
EP  - 813
PB  - Elsevier
CY  - Amsterdam [u.a.]
ER  - 
TY  - JOUR
A1  - Förster, Arnold
A1  - Vitusevich, S. A.
A1  - Belyaev, A. E.
A1  - Indlekofer, K. M.
T1  - Resonant tunneling effect in delta p-n GaAs junction. Vitusevich, S. A.; Förster, A.; Belyaev, A. E.; Indlekofer, K. M.; Lüth, H.; Konakova, R. V.
JF  - Microelectronic Engineering. 46 (1999), H. 1-4
Y1  - 1999
SN  - 0167-9317
N1  - International Conference on Micro- and Nanofabrication
SP  - 169
EP  - 172
ER  - 
TY  - JOUR
A1  - Förster, Arnold
A1  - Wensorra, J.
A1  - Indlekofer, K. M.
A1  - Lüth, H.
T1  - Resonant tunneling in nanocolumns improved by quantum collimation. Wensorra, J.; Indlekofer, K. M.; Förster, A.; Lüth, H.
JF  - Nano Letters. 5 (2005)
Y1  - 2005
SN  - 0587-4246
SP  - 2470
EP  - 2475
ER  - 
TY  - JOUR
A1  - Helsper, Christoph
A1  - Fißan, H. J.
T1  - Response Characteristic of a Polytec HC-15 Optical Particle Counter
JF  - Aerosols in science, medicine and technology : Physical and chemical properties of aerosols : Association for Aerosol Research: annual conference. 1980 : Gesellschaft für Aerosolforschung: annual conference. 1980 : Aerosols in science, medicine and technology : Physical and chemical properties of aerosols : Associa-tion for Aerosol Research: annual conference. 1980 : Gesellschaft für Aerosolforschung: annual conference. 1980 : Schmallenberg, 22.10.80 - 24.10.80
Y1  - 1981
N1  - Journal of aerosol science. Volume 0012 ; no 003
SP  - 287
EP  - 292
PB  - Pergamon Pr.
CY  - Oxford
ER  - 
TY  - JOUR
A1  - Helsper, Christoph
A1  - Bartz, H.
A1  - Fißan, H. J.
A1  - Kousaka, Y. (u.a.)
T1  - Response Characteristics for Four Condensation Nucleus Counters to Particles in the 3 to 50 nm Diameter Range / Bartz, H. ; Fißan, H. J. ; Helsper, C.; Kousaka, Y. ; Okuyama, K. ; Keady, R. Fruin, S. ; McMurry, P. H.; Pui, D. Y. H. ; Stolzenburg, M. R.
JF  - Journal of Aerosol Science. 16 (1985), H. 5
Y1  - 1985
SN  - 0021-8502
SP  - 443
EP  - 456
ER  - 
TY  - JOUR
A1  - Hoffschmidt, Bernhard
A1  - Krüger, D.
A1  - Hennecke, K.
T1  - Results from parabolic trough systems for process heat at the DLR Cologne / D. Krüger ; B. Hoffschmidt ; K. Hennecke ...
JF  - Solar thermal 2000 : proceedings of the 10th SolarPACES International Symposium on Solar Thermal Concentrating Technologies, Sydney, Australia, 8 - 10 March 2000 ; part of the
Y1  - 2000
N1  - International Symposium on Solar Thermal Concentrating Technologies <10, 2000, Sydney>
SP  - 113
EP  - 120
CY  - Sydney
ER  - 
TY  - JOUR
A1  - Sattler, Johannes, Christoph
A1  - Röger, Marc
A1  - Schwarzbözl, Peter
A1  - Buck, Reiner
A1  - Macke, Ansgar
A1  - Raeder, Christian
A1  - Göttsche, Joachim
T1  - Review of heliostat calibration and tracking control methods
JF  - Solar Energy
N2  - Large scale central receiver systems typically deploy between thousands to more than a hundred thousand heliostats. During solar operation, each heliostat is aligned individually in such a way that the overall surface normal bisects the angle between the sun’s position and the aim point coordinate on the receiver. Due to various tracking error sources, achieving accurate alignment ≤1 mrad for all the heliostats with respect to the aim points on the receiver without a calibration system can be regarded as unrealistic. Therefore, a calibration system is necessary not only to improve the aiming accuracy for achieving desired flux distributions but also to reduce or eliminate spillage. An overview of current larger-scale central receiver systems (CRS), tracking error sources and the basic requirements of an ideal calibration system is presented. Leading up to the main topic, a description of general and specific terms on the topics heliostat calibration and tracking control clarifies the terminology used in this work. Various figures illustrate the signal flows along various typical components as well as the corresponding monitoring or measuring devices that indicate or measure along the signal (or effect) chain. The numerous calibration systems are described in detail and classified in groups. Two tables allow the juxtaposition of the calibration methods for a better comparison. In an assessment, the advantages and disadvantages of individual calibration methods are presented.
Y1  - 2020
U6  - https://doi.org/10.1016/j.solener.2020.06.030
VL  - 207
SP  - 110
EP  - 132
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - CHAP
A1  - Kern, Alexander
A1  - Braun, Christian
T1  - Risk management according to IEC 62305-2 edition 2: 2010–12 assessment of structures with a risk of explosion
T2  - 2014 International Conference on Lightning Protection (ICLP), Shanghai, China
N2  - Risk management for structures with a risk of explosion should be considered very carefully when performing a risk analysis according to IEC 62305-2. In contrast to the 2006 edition of the standard, the 2010 edition describes the topic “Structures with a risk of explosion” in more detail. Moreover, in Germany separate procedures and parameters are defined for the risk analysis of structures with a risk of explosion (Supplement 3 of the German DIN EN 62305-2 standard). This paper describes the contents and the relevant calculations of this Supplement 3, together with a numerical example.
Y1  - 2014
SP  - 1237
EP  - 1242
ER  - 
TY  - CHAP
A1  - El-Deib, Khaled
A1  - Chudoba, Rostislav
A1  - Butenweg, Christoph
A1  - Meskouris, Konstantin
A1  - Könke, Carsten
A1  - Bettzieche, Volker
T1  - Safety assessment of rockfill and masonry dams
T2  - Structural dynamics - EURODYN 2002 : proceedings of the 4th [i.e. 5th] International Conference on Structural Dynamics, Munich, Germany, 2 - 5 September 2002 / ed. by H. Grundmann ... Vol. 1
Y1  - 2002
SN  - 90-5809-510-X
SP  - 237
EP  - 242
PB  - Balkema
CY  - Lisse
ER  -