TY  - JOUR
A1  - Mottaghy, Darius
A1  - Schwamborn, G.
A1  - Rath, V.
T1  - Past climate changes and permafrost depth at the Lake El'gygytgyn site: implications from data and thermal modeling
JF  - Climate of the Past
Y1  - 2013
U6  - http://dx.doi.org/10.5194/cp-9-119-2013
SN  - 1814-9332
VL  - 9
IS  - 1
SP  - 119
EP  - 133
PB  - Copernicus
CY  - Katlenburg-Lindau
ER  - 
TY  - JOUR
A1  - Mottaghy, Darius
A1  - Schellschmidt, R.
A1  - Popov, Y. A.
A1  - Clauser, C.
A1  - Kukkonen, I. T.
A1  - Nover, G.
A1  - Milanovsky, S.
A1  - Romushkevich, R. A.
T1  - New heat flow data from the immediate vicinity of the Kola super-deep borehole: Vertical variation in heat flow density confirmed and attributed to advection
JF  - Tectonophysics
Y1  - 2005
U6  - http://dx.doi.org/10.1016/j.tecto.2005.03.005
SN  - 1879-3266
VL  - 401
IS  - 1-2
SP  - 119
EP  - 142
ER  - 
TY  - JOUR
A1  - Mottaghy, Darius
A1  - Rath, Volker
T1  - Latent heat effects in subsurface heat transport modelling and their impact on palaeotemperature reconstructions
JF  - Geophysical Journal International
Y1  - 2006
U6  - http://dx.doi.org/10.1111/j.1365-246X.2005.02843.x
SN  - 1365-246X
VL  - 164
IS  - 1
SP  - 236
EP  - 245
ER  - 
TY  - JOUR
A1  - Mottaghy, Darius
A1  - Pechnig, Renate
A1  - Vogt, Christian
T1  - The geothermal project Den Haag: 3D numerical models for temperature prediction and reservoir simulation
JF  - Geothermics
N2  - The proposed Den Haag Zuidwest district heating system of the city of The Hague consists of a deep doublet in a Jurassic sandstone layer that is designed for a production temperature of 75 °C and a reinjection temperature of 40 °C at a flow rate of 150 m3 h−1. The prediction of reservoir temperature and production behavior is crucial for success of the proposed geothermal doublet. This work presents the results of a study of the important geothermal and geohydrological issues for the doublet design. In the first phase of the study, the influences of the three-dimensional (3D) structures of anticlines and synclines on the temperature field were examined. A comprehensive petrophysical investigation was performed to build a large scale 3D-model of the reservoir. Several bottomhole temperatures (BHTs), as well as petrophysical logs were used to calibrate the model using thermal conductivity measurements on 50 samples from boreholes in different lithological units in the study area. Profiles and cross sections extracted from the calculated temperature field were used to study the temperature in the surrounding areas of the planned doublet. In the second phase of the project, a detailed 3D numerical reservoir model was set up, with the aim of predicting the evolution of the producer and injector temperatures, and the extent of the cooled area around the injector. The temperature model from the first phase provided the boundary conditions for the reservoir model. Hydraulic parameters for the target horizons, such as porosity and permeability, were taken from data available from the nearby exploration wells. The simulation results are encouraging as no significant thermal breakthrough is predicted. For the originally planned location of the producer, the extracted water temperature is predicted to be around 79 °C, with an almost negligible cooling in the first 50 years of production. When the producer is located shallower parts of the reservoir, the yield water temperatures is lower, starting at ≈76 °C and decreasing to ≈74 °C after 50 years of operation. This comparatively larger decrease in temperature with time is caused by the structural feature of the reservoir, namely a higher dip causes the cooler water to easily move downward. In view of the poor reservoir data, the reservoir simulation model is constructed to allow iterative updates using data assimilation during planned drilling, testing, and production phases. Measurements during an 8 h pumping test carried out in late 2010 suggest that a flow rate of 150 m3 h−1 is achievable. Fluid temperatures of 76.5 °C were measured, which is very close to the predicted value.
Y1  - 2011
U6  - http://dx.doi.org/10.1016/j.geothermics.2011.07.001
SN  - 0375-6505
VL  - 40
IS  - 3
SP  - 199
EP  - 210
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - JOUR
A1  - Mottaghy, Darius
A1  - Pechnig, Renate
A1  - Taugs, Renate
A1  - Kröger, Jens
A1  - Thomsen, Claudia
A1  - Hesse, Fabian
A1  - Liebsch-Doerschner, Thomas
T1  - Erstellung eines geothermischen Modells für Teile Hamburgs und anliegende Gebiete
JF  - BBR - Fachmagazin für Brunnen- und Leitungsbau
Y1  - 2010
SN  - 1611-1478
VL  - 61
IS  - 12
SP  - 52
EP  - 59
PB  - WVGW Wirtschafts- u. Verl.Ges. Gas und Wasser
CY  - Bonn
ER  - 
TY  - JOUR
A1  - Mottaghy, Darius
A1  - Pechnig, Renate
T1  - Numerische 3D Modelle zur Temperaturvorhersage und Reservoirsimulationen
JF  - BBR - Fachmagazin für Brunnen- und Leitungsbau
Y1  - 2009
VL  - 60
IS  - 10
SP  - 44
EP  - 51
ER  - 
TY  - CHAP
A1  - Mottaghy, Darius
A1  - Majorowicz, Jacek
A1  - Rath, Volker
T1  - Ground Surface Temperature Histories Reconstructed from Boreholes in Poland: Implications for Spatial Variability
T2  - The Polish Climate in the European Context: An Historical Overview
Y1  - 2009
SN  - 978-90-481-3167-9
U6  - http://dx.doi.org/10.1007/978-90-481-3167-9_17
SP  - 375
EP  - 387
PB  - Springer Science+Business Media
CY  - Dordrecht
ER  - 
TY  - JOUR
A1  - Morandi, Paolo
A1  - Butenweg, Christoph
A1  - Breis, Khaled
A1  - Beyer, Katrin
A1  - Magenes, Guido
ED  - Ansal, Atilla
T1  - Latest findings on the behaviour factor q for the seismic design of URM buildings
JF  - Bulletin of Earthquake Engineering
N2  - Recent earthquakes as the 2012 Emilia earthquake sequence showed that recently built unreinforced masonry (URM) buildings behaved much better than expected and sustained, despite the maximum PGA values ranged between 0.20–0.30 g, either minor damage or structural damage that is deemed repairable. Especially low-rise residential and commercial masonry buildings with a code-conforming seismic design and detailing behaved in general very well without substantial damages. The low damage grades of modern masonry buildings that was observed during this earthquake series highlighted again that codified design procedures based on linear analysis can be rather conservative. Although advances in simulation tools make nonlinear calculation methods more readily accessible to designers, linear analyses will still be the standard design method for years to come. The present paper aims to improve the linear seismic design method by providing a proper definition of the q-factor of URM buildings. These q-factors are derived for low-rise URM buildings with rigid diaphragms which represent recent construction practise in low to moderate seismic areas of Italy and Germany. The behaviour factor components for deformation and energy dissipation capacity and for overstrength due to the redistribution of forces are derived by means of pushover analyses. Furthermore, considerations on the behaviour factor component due to other sources of overstrength in masonry buildings are presented. As a result of the investigations, rationally based values of the behaviour factor q to be used in linear analyses in the range of 2.0–3.0 are proposed.
KW  - Unreinforced masonry buildings
KW  - Modern constructions
KW  - Seismic design
KW  - Linear elastic analysis
KW  - Behaviour factor q
Y1  - 2022
U6  - http://dx.doi.org/10.1007/s10518-022-01419-7
SN  - 1573-1456
SN  - 1570-761X
VL  - 20
IS  - 11
SP  - 5797
EP  - 5848
PB  - Springer Nature
CY  - Cham
ER  - 
TY  - CHAP
A1  - Morandi, Paolo
A1  - Butenweg, Christoph
A1  - Breis, Khaled
A1  - Beyer, Katrin
A1  - Magenes, Guido
ED  - Arion, Christian
ED  - Scupin, Alexandra
ED  - Ţigănescu, Alexandru
T1  - Behaviour factor q for the seismic design of URM buildings
T2  - The Third European Conference on Earthquake Engineering and Seismology September 4 – September 9, 2022, Bucharest
N2  - Recent earthquakes showed that low-rise URM buildings following codecompliant seismic design and details behaved in general very well without substantial damages. Although advances in simulation tools make nonlinear calculation methods more readily accessible to designers, linear analyses will still be the standard design method for years to come. The present paper aims to improve the linear seismic design method by providing a proper definition of the q-factor of URM buildings. Values of q-factors are derived for low-rise URM buildings with rigid diaphragms, with reference to modern structural configurations realized in low to moderate seismic areas of Italy and Germany. The behaviour factor components for deformation and energy dissipation capacity and for overstrength due to the redistribution of forces are derived by means of pushover analyses. As a result of the investigations, rationally based values of the behaviour factor q to be used in linear analyses in the range of 2.0 to 3.0 are proposed.
KW  - unreinforced masonry buildings
KW  - modern constructions
KW  - seismic design
KW  - linear elastic analysis;
KW  - behaviour factor q
Y1  - 2022
SN  - 978-973-100-533-1
SP  - 1184
EP  - 1194
ER  - 
TY  - JOUR
A1  - Mohnke, Andreas
A1  - Schuckel, G.
T1  - Tempern von Oberflächenwellenwandlern in Schichtstruktur
JF  - Technische Hochschule Ilmenau / Bibliothek: Wissenschaftliche Zeitschrift. 32 (1986), H. 3
Y1  - 1986
SN  - 0043-6917
SP  - 151
EP  - 160
ER  - 
TY  - JOUR
A1  - Mohnke, Andreas
A1  - Schuckel, G.
T1  - Eigenschaften des Schichtsystems ZnO/Glas für die Mikroakustik. Schuckel, G.; Mohnke, A.
JF  - Technische Hochschule Ilmenau / Bibliothek: Wissenschaftliche Zeitschrift. 31 (1985), H. 4
Y1  - 1985
SN  - 0043-6917
SP  - 157
EP  - 164
ER  - 
TY  - BOOK
A1  - Mohnke, Andreas
T1  - Lehr- und Übungsbuch Mikrosystemtechnik : Grundlagen ; mit 24 Tabellen
Y1  - 2005
SN  - 3-446-40007-9
PB  - Fachbuchverl. Leipzig im Carl-Hanser-Verl.
CY  - München
ER  - 
TY  - JOUR
A1  - Mohnke, Andreas
T1  - High-rate sputtering of zinc oxide with a funnel-shaped magnetic field: Effect of the target thickness on the layer properties
JF  - Vakuum-Technik. 36 (1987), H. 5
Y1  - 1987
SN  - 0042-2266
N1  - unter 63 ZS 073-1986/87 in der Bibliothek Jülich vorhanden
SP  - 148
EP  - 151
ER  - 
TY  - JOUR
A1  - Mohnke, Andreas
T1  - Kathodenzerstäubung von Zinkoxid für die Akustoelektronik
JF  - Universität <Halle, Saale>:  Wissenschaftliche Beiträge : WB (1985)
Y1  - 1985
SN  - 0440-1298
SP  - 94
EP  - 95
ER  - 
TY  - JOUR
A1  - Mistler, Michael
A1  - Butenweg, Christoph
A1  - Meskouris, Konstantin
T1  - Modelling methods of historic masonry buildings under seismic excitation
JF  - Journal of seismology
Y1  - 2006
U6  - http://dx.doi.org/10.1007/s10950-006-9033-z
SN  - 1383-4649 (Print) ; 1573-157X (E-Journal)
VL  - Volume 10
IS  - No. 4
SP  - 497
EP  - 510
ER  - 
TY  - JOUR
A1  - Mistler, Michael
A1  - Butenweg, Christoph
A1  - Fehling, Ekkehard
A1  - Stürz, Jochen
T1  - Verformungsbasierte seismische Bemessung von Mauerwerksbauten auf Grundlage zyklischer Schubwandversuche
JF  - Bauingenieur : die richtungsweisende Zeitschrift im Bauingenieurswesen ; offizielle Zeitschrift der VDI-Gesellschaft Bautechnik. Beilage: D-A-CH-Mitteilungsblatt
Y1  - 2007
SN  - 1434-6591
VL  - Band 82
SP  - S3
EP  - S11
ER  - 
TY  - JOUR
A1  - Mistler, Michael
A1  - Butenweg, Christoph
T1  - Verformungsbasierter seismischer Nachweis von Mauerwerksbauten mit der Kapazitätsspektrum-Methode
JF  - Mauerwerk : European journal of masonry
Y1  - 2005
U6  - http://dx.doi.org/10.1002/dama.200590098
SN  - 1437-1022 (E-Journal); 1432-3427 (Print)
VL  - Volume 9
IS  - Issue 6
SP  - 255
EP  - 261
ER  - 
TY  - CHAP
A1  - Mistler, Michael
A1  - Butenweg, Christoph
T1  - A seismic design procedure for masonry buildings
T2  - Proceedings of the Tenth International Conference on Civil, Structural and Environmental Engineering Computing : [Rome, Italy, 30. August - 2. September 2005] / ed. by B. H. V. Topping
Y1  - 2005
SN  - 1-905088-00-0
U6  - http://dx.doi.org/10.4203/ccp.81.193
SP  - 465
EP  - 467
PB  - Civil-Comp Press
CY  - Stirling
ER  - 
TY  - JOUR
A1  - Mistler, Michael
A1  - Anthoine, A.
A1  - Butenweg, Christoph
T1  - In-plane and out-of-plane homogenisation of masonry
JF  - Computers & structures
Y1  - 2007
U6  - http://dx.doi.org/10.1016/j.compstruc.2006.08.087
SN  - 1879-2243 (E-Journal); 0045-7949 (Print)
VL  - Volume 85
IS  - Issues 17-18
SP  - 1321
EP  - 1330
ER  - 
TY  - CHAP
A1  - Mistler, M.
A1  - Butenweg, Christoph
A1  - Anthoine, A.
T1  - Evaluation of the failure criterion for masonry by homogenisation
T2  - Proceedings of the Seventh International Conference on Computational Structures Technology : [Lisbon, Portugal, 7 - 9 September 2004] / ed. by B. H. V. Topping and C.A. Mota Soares
Y1  - 2004
SN  - 0-948749-95-4
U6  - http://dx.doi.org/10.4203/ccp.79.201
PB  - Civil-Comp Press
CY  - Stirling
ER  -