@article{HardtMartinMeissburgeretal.1978, author = {Hardt, Arno and Martin, S. and Meißburger, J. and Retz, R. and Wimmer, J.}, title = {The cryopump system of the QQDDQ magnet spectrometer BIG KARL}, series = {Vacuum}, volume = {28}, journal = {Vacuum}, number = {10-11}, publisher = {Elsevier}, address = {Amsterdam}, issn = {1879-2715 (E-Journal); 0042-207X (Print)}, doi = {10.1016/S0042-207X(78)80026-8}, pages = {483}, year = {1978}, abstract = {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.}, language = {en} } @article{HardtKoehlerMuelleretal.1980, author = {Hardt, Arno and K{\"o}hler, M. and M{\"u}ller, K. D. and Stoff, H.}, title = {A two-dimensional position sensitive charged-particle detector for the magnetic spectrograph "BIG KARL" of the J{\"u}lich Cyclotron "JULIC". M. K{\"o}hler, K. D. M{\"u}ller, H. Stoff, M. Teske, G. P. A. Berg, A. Hardt, S. Martin, C. Mayer-B{\"o}ricke , J. Meißburger}, series = {Nuclear Instruments and Methods. 75 (1980), H. 2-3}, journal = {Nuclear Instruments and Methods. 75 (1980), H. 2-3}, isbn = {0029-554X}, pages = {357 -- 362}, year = {1980}, language = {en} } @article{HardtBisplinghoffErnstetal.1977, author = {Hardt, Arno and Bisplinghoff, J. and Ernst, J. and L{\"o}hr, R.}, title = {On-line apparatus BANDIT for half-life determination of short-lived neutron deficient isotopes. A. Hardt, J. Bisplinghoff, J. Ernst, R. L{\"o}hr, H. Machner, T . Mayer-Kuckuk}, series = {Nuclear Instruments and Methods. 143 (1977), H. 3}, journal = {Nuclear Instruments and Methods. 143 (1977), H. 3}, isbn = {0029-554X}, pages = {519 -- 523}, year = {1977}, language = {en} } @article{GoettscheAlexopoulosDuemmleretal.2019, author = {G{\"o}ttsche, Joachim and Alexopoulos, Spiros and D{\"u}mmler, Andreas and Maddineni, S. K.}, title = {Multi-Mirror Array Calculations With Optical Error}, pages = {1 -- 6}, year = {2019}, abstract = {The optical performance of a 2-axis solar concentrator was simulated with the COMSOL Multiphysics® software. The concentrator consists of a mirror array, which was created using the application builder. The mirror facets are preconfigured to form a focal point. During tracking all mirrors are moved simultaneously in a coupled mode by 2 motors in two axes, in order to keep the system in focus with the moving sun. Optical errors on each reflecting surface were implemented in combination with the solar angular cone of ± 4.65 mrad. As a result, the intercept factor of solar radiation that is available to the receiver was calculated as a function of the transversal and longitudinal angles of incidence. In addition, the intensity distribution on the receiver plane was calculated as a function of the incidence angles.}, language = {en} } @article{GoemmelButenwegBolenderetal.2007, author = {G{\"o}mmel, Andreas and Butenweg, Christoph and Bolender, Katrin and Grunendahl, Arno}, title = {A muscle controlled finite-element model of laryngeal abduction and adduction}, series = {Computer methods in biomechanics and biomedical engineering}, volume = {Volume 10}, journal = {Computer methods in biomechanics and biomedical engineering}, number = {Issue 5}, issn = {1476-8259 (E-Journal); 1025-5842 (Print)}, pages = {377 -- 388}, year = {2007}, language = {en} } @article{GiresiniSassuButenwegetal.2017, author = {Giresini, Linda and Sassu, Mauro and Butenweg, Christoph and Alecci, Valerio and De Stefano, Mario}, title = {Vault macro-element with equivalent trusses in global seismic analyses}, series = {Earthquakes and Structures}, volume = {12}, journal = {Earthquakes and Structures}, number = {4}, publisher = {Techno-Press}, address = {Taejŏn}, issn = {2092-7614 (Print)}, doi = {10.12989/eas.2017.12.4.409}, pages = {409 -- 423}, year = {2017}, abstract = {This paper proposes a quick and simplified method to describe masonry vaults in global seismic analyses of buildings. An equivalent macro-element constituted by a set of six trusses, two for each transverse, longitudinal and diagonal direction, is introduced. The equivalent trusses, whose stiffness is calculated by fully modeled vaults of different geometry, mechanical properties and boundary conditions, simulate the vault in both global analysis and local analysis, such as kinematic or rocking approaches. A parametric study was carried out to investigate the influence of geometrical characteristics and mechanical features on the equivalent stiffness values. The method was numerically validated by performing modal and transient analysis on a three naves-church in the elastic range. Vibration modes and displacement time-histories were compared showing satisfying agreement between the complete and the simplified models. This procedure is particularly useful in engineering practice because it allows to assess, in a simplified way, the effectiveness of strengthening interventions for reducing horizontal relative displacements between vault supports.}, language = {en} } @article{GerlingPoolPredel1983, author = {Gerling, Ulrich and Pool, M. J. and Predel, Bruno}, title = {A contribution to the associate model for binary liquid alloys = Ein Beitrag zum Assoziat-Modell f{\"u}r bin{\"a}re fl{\"u}ssige Legierungen}, series = {Zeitschrift f{\"u}r Metallkunde : international journal of materials research and advanced techniques. Bd. 74, H. 9}, journal = {Zeitschrift f{\"u}r Metallkunde : international journal of materials research and advanced techniques. Bd. 74, H. 9}, issn = {0044-3093 ; 0179-4841}, pages = {616 -- 619}, year = {1983}, language = {en} } @article{GeimerSauerbornHoffschmidtetal.2010, author = {Geimer, Konstantin and Sauerborn, Markus and Hoffschmidt, Bernhard and Schmitz, Mark and G{\"o}ttsche, Joachim}, title = {Test Facility for Absorber Specimens of Solar Tower Power Plants}, series = {Advances in Science and Technology. 74 (2010)}, journal = {Advances in Science and Technology. 74 (2010)}, pages = {266 -- 271}, year = {2010}, language = {en} } @article{FoersterZettlerMikkelsenetal.1992, author = {F{\"o}rster, Arnold and Zettler, J.-T. and Mikkelsen, H. and Leo, K.}, title = {Modulated ellipsometric measurements and transfer-matrix calculation of the field-dependent dielectric function of a multiple quantum well / J.-Th. Zettler ; H. Mikkelsen ; K. Leo ... A. F{\"o}rster}, series = {Physical Review B . 46 (1992), H. 24}, journal = {Physical Review B . 46 (1992), H. 24}, isbn = {0163-1829}, pages = {15955 -- 15962}, year = {1992}, language = {en} } @article{FoersterZamdmerHuetal.1999, author = {F{\"o}rster, Arnold and Zamdmer, N. and Hu, Qing and Verghese, S.}, title = {Mode-Discriminating Photoconductor and Coplanar Wave-Guide Circuits for Picosecond Sampling. Zamdmer, N.; Hu, Qing ; Verghese, S. ; F{\"o}rster, A.}, series = {Applied Physics Letters. 74 (1999), H. 7}, journal = {Applied Physics Letters. 74 (1999), H. 7}, isbn = {1077-3118}, pages = {1039 -- 1041}, year = {1999}, language = {en} } @article{FoersterZamdmerHuetal.1999, author = {F{\"o}rster, Arnold and Zamdmer, N. and Hu, Qing and McIntosh, K. A.}, title = {On-chip frequency domain submillimeter-wave transceiver. Zamdmer, N.; Hu, Qing ; McIntosh K. A. ; Verghise, S. ; F{\"o}rster, A.}, series = {Applied Physics Letters. 75 (1999), H. 24}, journal = {Applied Physics Letters. 75 (1999), H. 24}, isbn = {1077-3118}, pages = {3877 -- 3879}, year = {1999}, language = {en} } @article{FoersterWensorraIndlekoferetal.2005, author = {F{\"o}rster, Arnold and Wensorra, J. and Indlekofer, K. M. and L{\"u}th, H.}, title = {Resonant tunneling in nanocolumns improved by quantum collimation. Wensorra, J.; Indlekofer, K. M.; F{\"o}rster, A.; L{\"u}th, H.}, series = {Nano Letters. 5 (2005)}, journal = {Nano Letters. 5 (2005)}, isbn = {0587-4246}, pages = {2470 -- 2475}, year = {2005}, language = {en} } @article{FoersterVitusevichBelyaev1999, author = {F{\"o}rster, Arnold and Vitusevich, S. A. and Belyaev, B. A.}, title = {Intrinsic bistability effect in delta doped tunneling diodes / S. A. Vitusevich ; A. F{\"o}rster ; B. A. Belyaev ...}, series = {Proceedings of the XXVIII International School on Physics of Semiconducting Compounds : Jaszowiec, Poland, June 6 - 11, 1999 / Polish Academy of Sciences, Institute of Physics. Ed. of the proceedings Wojciech Szuszkiewicz}, journal = {Proceedings of the XXVIII International School on Physics of Semiconducting Compounds : Jaszowiec, Poland, June 6 - 11, 1999 / Polish Academy of Sciences, Institute of Physics. Ed. of the proceedings Wojciech Szuszkiewicz}, address = {Warsaw}, pages = {S. 511 - 688 : Ill., graph. Darst.}, year = {1999}, language = {en} } @article{FoersterVitusevichBelyaevetal.2002, author = {F{\"o}rster, Arnold and Vitusevich, S. A. and Belyaev, A. E. and Sheka, D. I.}, title = {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.}, series = {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.: G{\"u}nther Bauer ...}, journal = {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.: G{\"u}nther Bauer ...}, publisher = {Elsevier}, address = {Amsterdam [u.a.]}, pages = {811 -- 813}, year = {2002}, language = {en} } @article{FoersterVitusevichBelyaevetal.1999, author = {F{\"o}rster, Arnold and Vitusevich, S. A. and Belyaev, A. E. and Indlekofer, K. M.}, title = {Resonant tunneling effect in delta p-n GaAs junction. Vitusevich, S. A.; F{\"o}rster, A.; Belyaev, A. E.; Indlekofer, K. M.; L{\"u}th, H.; Konakova, R. V.}, series = {Microelectronic Engineering. 46 (1999), H. 1-4}, journal = {Microelectronic Engineering. 46 (1999), H. 1-4}, isbn = {0167-9317}, pages = {169 -- 172}, year = {1999}, language = {en} } @article{FoersterVitusevichBelyaev1999, author = {F{\"o}rster, Arnold and Vitusevich, S. A. and Belyaev, A. E.}, title = {Optically controlled 2D tunneling in GaAs delta-doped p-n junction / S. A. Vitusevich ; A. F{\"o}rster ; A. E. Belyaev ...}, series = {Semiconductor Physics, Quantum Electronics \& Optoelectronics (SQO) : International Scientific Journal. 2 (1999), H. 1}, journal = {Semiconductor Physics, Quantum Electronics \& Optoelectronics (SQO) : International Scientific Journal. 2 (1999), H. 1}, isbn = {1605-6582}, pages = {7 -- 10}, year = {1999}, language = {en} } @article{FoersterVergheseZamdmeretal.1996, author = {F{\"o}rster, Arnold and Verghese, S. and Zamdmer, N. and Hu, Qing}, title = {An optical correlator using a low-temperature-grown GaAs photoconductor / S. Verghese ; N. Zamdmer ; Qing Hu .... A. F{\"o}rster}, series = {Applied physics letters. 69 (1996), H. 6}, journal = {Applied physics letters. 69 (1996), H. 6}, isbn = {0003-6951}, pages = {842 -- 844}, year = {1996}, language = {en} } @article{FoersterVergheseZamdmeretal.1997, author = {F{\"o}rster, Arnold and Verghese, S. and Zamdmer, N. and Hu, Qing}, title = {Cryogenic picosecond sampling using fiber-coupled photoconductive switch / S. Verghese ; N. Zamdmer ; Qing Hu ; A. F{\"o}rster}, series = {Applied physics letters. 70 (1997), H. 20}, journal = {Applied physics letters. 70 (1997), H. 20}, isbn = {0003-6951}, pages = {2644 -- 2646}, year = {1997}, language = {en} } @article{FoersterTulkeLueth1987, author = {F{\"o}rster, Arnold and Tulke, A. and L{\"u}th, H.}, title = {The Schottky barrier at the InSb(110)-Sn interface}, series = {Journal of Vacuum Science \& Technology B: Microelectronics and Nanometer Structures. 5 (1987), H. 4}, journal = {Journal of Vacuum Science \& Technology B: Microelectronics and Nanometer Structures. 5 (1987), H. 4}, isbn = {1071-1023}, pages = {1054 -- 1056}, year = {1987}, language = {en} } @article{FoersterTillmannThust1996, author = {F{\"o}rster, Arnold and Tillmann, K. and Thust, M.}, title = {Determination of segregation, elastic strain and thin-foil relaxation in InxGa-1-x As islands on GaAs(001) by high resolution transmission electron microscopy / K. Tillmann ; A. Thust ; M. Lentzen ... A. F{\"o}rster ...}, series = {Philosophical magazine / Letters. 74 (1996), H. 5}, journal = {Philosophical magazine / Letters. 74 (1996), H. 5}, isbn = {1362-3036}, pages = {309 -- 315}, year = {1996}, language = {en} }