TY  - CHAP
A1  - Hardt, Arno
A1  - Abdel-Gawad, A
A1  - Martin, Siegfried A.
A1  - Reich, J.
T1  - Design procedures for the Juelich QQDDQ high resolution spectrometer
T2  - Proceedings, 5th International Conference on Magnet Technology (MT-5) : Rome, Italy, April 21-25, 1975
Y1  - 1975
SP  - 45
EP  - 51
ER  - 
TY  - JOUR
A1  - Hardt, Arno
A1  - Martin, Siegfried A.
A1  - Meissburger, Jürgen
A1  - Retz, R.
A1  - Wimmer, J.
T1  - The cryopump system of the QQDDQ magnet spectrometer BIG KARL
JF  - Vacuum
N2  - Cryopumps without liquid nitrogen shielding are used to provide a vacuum of 10−6 torr in the spectrometer. The vacuum system is subdivided in three sections that can be separated by valves.

The first section (scattering chamber) has a volume of 60 l, two rotation transmissions with 35 cm dia and a sliding seal that allows a rotation of 160° without deteriorating the vacuum. The second section includes the vacuum chambers inside the magnets with 6 × 80 cm cross-section and a length of 1200 cm. The third section (detector box) has a volume of 4300 l and contains a moveable detector system. The gas inside the detector with a pressure of 760 torr is separated from the vacuum by a 15 μm mylar foil with an area of 300 cm2. The detector box can be valved off by a valve with the dimension of 10 × 100 cm.

The layout of system is given. The instrumentation and the interlock system are described. First experiences with this system are presented.
Y1  - 1978
U6  - https://doi.org/10.1016/S0042-207X(78)80026-8
SN  - 1879-2715 (E-Journal); 0042-207X (Print)
VL  - 28
IS  - 10-11
SP  - 483
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - CHAP
A1  - Bechstedt, U.
A1  - Berg, Georg P. A.
A1  - Hacker, Ulrich
A1  - Hardt, Arno
A1  - Hürlimann, Werner
A1  - Maier, R.
A1  - Martin, Siegfried A.
A1  - Meissburger, Jürgen
A1  - Römer, Josef G. M.
A1  - Possen, P. von
A1  - Sagefka, Thomas
T1  - BIG KARL and COSY
T2  - The art and science of magnet design. A Festschrift in honor of Klaus Halbach. Vol. 1
Y1  - 1995
SP  - 19
EP  - 28
PB  - Lawrence Berkeley Lab., Univ. of California
CY  - Berkeley, CA.
ER  - 
TY  - JOUR
A1  - Bechstedt, U.
A1  - Haas, H.
A1  - Hacker, Ulrich
A1  - Hardt, Arno
A1  - Henn, K.
A1  - Martin, Siegfried A.
A1  - Wimmer, J.
T1  - Magnets for the German Spallation Source SNQ
JF  - IEEE transactions on nuclear science. Vol. 32, iss. 5
Y1  - 1985
SN  - 1558-1578 (E-Journal); 0018-9499 (Print)
SP  - 3631
EP  - 3633
ER  - 
TY  - JOUR
A1  - Schult, Otto 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  - Martin, Siegfried A.
A1  - Berg, G.
A1  - Hardt, Arno
A1  - Hürlimann, Werner
A1  - Köhler, M.
A1  - Meißberger, J.
A1  - Sagefka, Thomas
A1  - Schult, Otto W. B.
ED  - Sanderson, N. E.
T1  - First experience with the magnet spectrometer 'BIG KARL'
T2  - Use of magnetic spectrometers in nuclear physics : proceedings of the Daresbury study weekend 10 - 11 March 1979
Y1  - 1979
SP  - 38
EP  - 42
PB  - Daresbury Lab.
CY  - Daresbury
ER  - 
TY  - JOUR
A1  - Martin, Siegfried A.
A1  - Berg, Georg P. A.
A1  - Hacker, Ulrich
A1  - Hardt, Arno
A1  - Köhler, M.
A1  - Meissburger, Jürgen
A1  - Osterfeld, F.
A1  - Prasuhn, D.
A1  - Riepe, G.
A1  - Rogge, M.
A1  - Schult, Otto W. B.
A1  - Speth, J.
A1  - Turek, P.
A1  - Gaul, G.
A1  - Hagedoorn, H.
A1  - Heide, J. A. van der
A1  - Hinterberger, F.
A1  - Huber, M.
A1  - Jahn, R.
A1  - Mayer-Kuckuk, T.
A1  - Poth, H.
A1  - Paetz gen. Schieck, H.
T1  - COSY - a cooler synchrotron and storage ring
JF  - IEEE transactions on nuclear science. Vol. 32, iss. 5
Y1  - 1985
SN  - 1558-1578 (E-Journal); 0018-9499 (Print)
SP  - 2694
EP  - 2696
ER  - 
TY  - BOOK
A1  - Berg, Georg P. A.
A1  - Gaul, G.
A1  - Hagedoorn, H.
A1  - Hardt, Arno
A1  - Heide, J. A. van der
A1  - Hinterberger, F.
A1  - Huber, Max
A1  - Jahn, R.
A1  - Martin, Siegfried A.
A1  - Mayer-Kuckuk, T.
A1  - Osterfeld, F.
A1  - Paetz gen. Schieck, H.
A1  - Prasuhn, D.
A1  - Riepe, G.
A1  - Rogge, M.
A1  - Rossen, P. von
A1  - Schult, Otto W. B.
A1  - Speth, J.
A1  - Turek, P.
T1  - Studie zum Bau eines kombinierten Kühler-Synchrotron-Rings an der KFA Jülich: COSY-Studie. Spezielle Berichte der Kernforschungsanlage Jülich. Nr. 0242. Jül-Spez-242
Y1  - 1984
PB  - Kernforschungsanlage
CY  - Jülich
ER  - 
TY  - JOUR
A1  - Kahmann, Stephanie Lucina
A1  - Rausch, Valentin
A1  - Plümer, Jonathan
A1  - Müller, Lars-Peter
A1  - Pieper, Martin
A1  - Wegmann, Kilian
T1  - The automized fracture edge detection and generation of three-dimensional fracture probability heat maps
JF  - Medical Engineering & Physics
N2  - With proven impact of statistical fracture analysis on fracture classifications, it is desirable to minimize the manual work and to maximize repeatability of this approach. We address this with an algorithm that reduces the manual effort to segmentation, fragment identification and reduction. The fracture edge detection and heat map generation are performed automatically. With the same input, the algorithm always delivers the same output. The tool transforms one intact template consecutively onto each fractured specimen by linear least square optimization, detects the fragment edges in the template and then superimposes them to generate a fracture probability heat map.

We hypothesized that the algorithm runs faster than the manual evaluation and with low (< 5 mm) deviation. We tested the hypothesis in 10 fractured proximal humeri and found that it performs with good accuracy (2.5 mm ± 2.4 mm averaged Euclidean distance) and speed (23 times faster). When applied to a distal humerus, a tibia plateau, and a scaphoid fracture, the run times were low (1–2 min), and the detected edges correct by visual judgement. In the geometrically complex acetabulum, at a run time of 78 min some outliers were considered acceptable. An automatically generated fracture probability heat map based on 50 proximal humerus fractures matches the areas of high risk of fracture reported in medical literature.

Such automation of the fracture analysis method is advantageous and could be extended to reduce the manual effort even further.
KW  - Fracture classification
KW  - Shoulder
KW  - Probability distribution mapping
KW  - Morphing
KW  - Imaging
Y1  - 2022
SN  - 1350-4533
VL  - 2022
IS  - 110
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - RPRT
A1  - Ghinaiya, Jagdishkumar
A1  - Lehmann, Thomas Martin
A1  - Göttsche, Joachim
T1  - LOCAL+ – ein kreislauffähiger Holzmodulbau mit nachhaltigem Energie- und Wohnraumkonzept
T2  - Bauphysik
N2  - Mit dem Beitrag des Teams der FH Aachen zum SDE 21/22 wird im Projekt LOCAL+ ein kreislauffähiger Holzmodulbau mit einem innovativen Wohnraumkonzept geplant und umgesetzt. Ziel dieses Konzeptes ist die Verringerung des stetig steigenden Wohnflächenbedarfs durch ein Raum-in-Raum Konzept. Gebäudetechnisch wird in dem Projekt nicht nur das Einzelgebäude betrachtet, sondern unter Berücksichtigung des Gebäudebestandes wird für das Quartier ein innovatives und nachhaltiges Energiekonzept entwickelt. Ein zentrales Wasserstoffsystem ist für ein Quartier geplant, um den Stromverbrauch aus dem Netz im Winter zu reduzieren. Zentraler Bestandteil des TGA-Konzepts ist ein unterirdischer Eisspeicher, eine PVT und eine Wärmepumpe mit intelligenter Regelstrategie. Ein Teil des neuen Gebäudes (Design Challenge DC) wird in Wuppertal als Hausdemonstrationseinheit (HDU) präsentiert. Eine hygrothermische Simulation der HDU wurde mit der WUFI-Software durchgeführt. Da im Innenraum Lehmmodule und -platten als Feuchtigkeitspuffer verwendet werden, spielen die Themen Feuchtigkeit, Holzfäule und Schimmelwachstum eine wichtige Rolle.
KW  - Energiekonzept
KW  - Gesamtwassergehalt
KW  - Feuchtigkeit
KW  - Verdunstungskälte
KW  - energy concept
Y1  - 2022
U6  - https://doi.org/10.1002/bapi.202200010
SN  - 0171-5445 (Print)
SN  - 1437-0980 (Online)
VL  - 44
IS  - 3
SP  - 136
EP  - 142
PB  - Ernst & Sohn
CY  - Hoboken
ER  - 
TY  - JOUR
A1  - Kern, Alexander
A1  - Klöters, Georg
A1  - Pferdemenges, Jörg
T1  - Optimised protection against lightning for the signalling and safety systems of level crossings on non-electrified railway lines
JF  - RTR : European Rail Technology Review
Y1  - 2010
SN  - 0079-9548
VL  - 50
IS  - 2
PB  - DVV Media Group
CY  - Hamburg
ER  - 
TY  - JOUR
A1  - Kern, Alexander
A1  - Schelthoff, Christof
A1  - Mathieu, Moritz
T1  - Die dynamische Blitzkugel : Wahrscheinlichkeitsberechnung für Blitzeinschläge in Gebäude
JF  - de - Fachzeitschrift für das Elektrohandwerk
Y1  - 2010
SN  - 2509-517X
IS  - 13-14
SP  - 24
EP  - 29
PB  - Hüthig
CY  - Heidelberg
ER  - 
TY  - JOUR
A1  - Alexopoulos, Spiros
A1  - Hoffschmidt, Bernhard
T1  - Solar tower power plant in Germany and future perspectives of the development of the technology in Greece and Cyprus
JF  - Renewable Energy
N2  - Since the 80s power production with solar thermal power plants has been a way to substitute fossil fuels. By concentrating direct solar radiation from heliostats very high temperatures of a thermal fluid can be reached. The resulting heat is converted to mechanical energy in a steam cycle which generates electricity.

High efficiencies and fast start-up are reached by using air as a heat medium, as well as using porous ceramic materials as solar receiver of the concentrated sunlight.

In Germany the construction of a 1.5 MWe solar tower power plant began in 2008. It is operational since December 2008 and started production of electricity in the spring of 2009.

In Greece and Cyprus, countries with high solar potential, the development of this competitive solar thermal technology is imperative, since it has already been implemented in other Mediterranean countries.
Y1  - 2010
U6  - https://doi.org/10.1016/j.renene.2009.11.003
SN  - 0960-1481
VL  - 35
IS  - 7
SP  - 1352
EP  - 1356
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - JOUR
A1  - Hoffschmidt, Bernhard
A1  - Becker, Manfred
A1  - Fend, Thomas
T1  - Theoretical and numerical investigation of flow stability in porous materials applied as volumetric solar receivers / M. Becker ; T. Fend ; B. Hoffschmidt ...
JF  - Solar energy. 80 (2006), H. 10
Y1  - 2006
SN  - 0038-092X
N1  - Solar Power and Chemical Energy Systems (SolarPACES’04)
SP  - 1241
EP  - 1248
ER  - 
TY  - CHAP
A1  - Lu, S.
A1  - Beyer, Katrin
A1  - Bosiljkov, V.
A1  - Butenweg, Christoph
A1  - D’Ayala, D.
A1  - Degee, H.
A1  - Gams, M.
A1  - Klouda, J.
A1  - Lagomarsino, S.
A1  - Penna, A.
A1  - Mojsilovic, N.
A1  - da Porto, F.
A1  - Sorrentino, L.
A1  - Vintzileou, E.
ED  - Modena, Claudio
ED  - da Porto, F.
ED  - Valluzzi, M.R.
T1  - Next generation of Eurocode 8, masonry chapter
T2  - Brick and Block Masonry Proceedings of the 16th International Brick and Block Masonry Conference, Padova, Italy, 26-30 June 2016
N2  - This paper describes the procedure on the evaluation of the masonry chapter for the next generation of Eurocode 8, the European Standard for earthquake-resistant design. In CEN, TC 250/SC8, working group WG 1 has been established to support the subcommittee on the topic of masonry on both design of new structures (EN1998-1) and assessment of existing structures (EN1998-3). The aim is to elaborate suggestions for amendments which fit the current state of the art in masonry and earthquake-resistant design. Focus will be on modelling, simplified methods, linear-analysis (q-values, overstrength-values), nonlinear procedures, out-of-plane design as well as on clearer definition of limit states. Beside these, topics related to general material properties, reinforced masonry, confined masonry, mixed structures and non-structural infills will be covered too. This paper presents the preliminary work and results up to the submission date.
Y1  - 2016
SN  - 978-1-138-02999-6 (Print)
SN  - 9781315374963 (E-Book)
SP  - 695
EP  - 700
PB  - Taylor & Francis
CY  - London
ER  - 
TY  - CHAP
A1  - Kuhlmann, W.
A1  - Bettzieche, Volker
A1  - Roesler, F.
A1  - Butenweg, Christoph
A1  - Könke, C.
A1  - Meskouris, Konstantin
T1  - Baudynamische Untersuchung von Talsperren des Ruhrverbandes
T2  - Neubewertung der Erdbebensicherheit von Talsperren in Deutschland : DGEB-Workshop, 28. November 2003 in Potsdam = Assessment of the seismic safety of dams in Germany / organisiert von der Deutschen Gesellschaft für Erdbebeningenieurwesen und Baudynamik. K. Meskouris ... (Hrsg.) (DGEB-Publikation ; Nr. 12)
Y1  - 2005
SN  - 3-930108-08-9
SP  - 37
EP  - 48
PB  - DGEB
CY  - Aachen
ER  - 
TY  - JOUR
A1  - Butenweg, Christoph
A1  - Kuhlmann, Wolfram
A1  - Bettzieche, Volker
T1  - Baudynamische Untersuchung von Talsperren
JF  - Bauingenieur : die richtungsweisende Zeitschrift im Bauingenieurswesen ; offizielle Zeitschrift der VDI-Gesellschaft Bautechnik. Beilage: D-A-CH-Mitteilungsblatt
Y1  - 2005
SN  - 0005-6650 (Print) ; 1436-4867 (E-Journal) ; 1434-6591 (Beilage)
VL  - Band 80
IS  - Nr. 3
SP  - S2
EP  - S6
ER  -