TY - JOUR A1 - Hoyler, Friedrich A1 - Aprahamian, A. A1 - Wu, X. A1 - Lesher, S. R. T1 - Complete spectroscopy of the 162Dy nucleus / Aprahamian, A. ; Wu, X. ; Lesher, S. R. ; Warner, D. D. ; Gelletly, W. ; Börner, H. G. ; Hoyler, F. ; Schreckenbach, K. ; Carsten R. F. ; Shi, Z. R. ; Kusnezov, D. ; Ibrahim, M. ; Macchiavelli, A. O. ; Brinkman JF - Nuclear physics / A. 764 (2006) Y1 - 2006 SN - 0375-9474 SP - 42 EP - 78 ER - TY - JOUR A1 - Hoyler, Friedrich A1 - Shi, Z. R. A1 - Schreckenback, K. A1 - Aprahamian, A. T1 - Complete spectroscopy and the 162Dy nucleus / Z. R. Shi ; K. Schreckenbach ; A. Aprahamian ... F. Hoyler ... JF - AIP conference proceedings (1999) Y1 - 1999 SN - 0094-243X N1 - American Institute of Physics conference proceedings SP - 237 EP - 238 ER - TY - JOUR A1 - Hoyler, Friedrich A1 - Prokofjevs, P. A1 - Bondarenko, V. T1 - Study of nuclear structure of 164Dy in (n, gamma) and(n, n' gamma) reactions / P. Prokofjevs ; V. Bondarenko ; F. Hoyler ... Y1 - 1997 SN - 1122-1437 N1 - Conference proceedings - Italian Physical Society SP - 759 ER - TY - JOUR A1 - Hoyler, Friedrich T1 - Microscopic and semimicroscopic analysis of the reaction 27al- (p,#ga)24mg in the energy range between 20 and 45 mev JF - Physical review / C, nuclear physics. 31 (1985), H. 1 Y1 - 1985 SN - 0556-2813 SP - 17 ER - TY - JOUR A1 - Hoyler, Friedrich A1 - Balodis, M. A1 - Prokofjevs, P. T1 - Level scheme of 194Ir / M. Balodis ; P. Prokofjevs ... F. Hoyler ... JF - Nuclear physics / A. 641 (1998), H. 2 Y1 - 1998 SN - 0375-9474 SP - 133 EP - 187 ER - TY - JOUR A1 - Hoyler, Friedrich A1 - White, D.H. A1 - Hoff, R. W. T1 - Nuclear structure of 241Pu from neutron-capture, (d,p)-, and (d,t)-reaction measurements / D. H. White ; R. W. Hoff ... F. Hoyler ... JF - Physical review / C. 57 (1998), H. 3 Y1 - 1998 SN - 0556-2813 SP - 1112 EP - 1133 ER - TY - JOUR A1 - Hoyler, Friedrich A1 - Corminboeuf, F. A1 - Jolie, J. T1 - Kp=4+ double-gvibration in 164Dy / F. Corminboeuf ; J. Jolie ... F. Hoyler ... JF - Physical review / C. 56 (1997), H. 3 Y1 - 1997 SN - 0556-2813 SP - R1201 ER - TY - JOUR A1 - Hoyler, Friedrich A1 - Drissi, S. A1 - Tercier, P. A. T1 - The 112Cd laboratory - An extension : EO strengths, multiphonon states and coupled vibrations / S. Drissi ; P. A. Tercier ... F. Hoyler ... JF - Nuclear physics / A. 614 (1997), H. 2 Y1 - 1997 SN - 0375-9474 SP - 137 EP - 182 ER - TY - JOUR A1 - Hoyler, Friedrich A1 - Colvin, G. G. A1 - Robinson, S. J. T1 - 100Ru studied by thermal neutron capture / G. G. Colvin ; S. J. Robinson ; F. Hoyler JF - Journal of Physics G. 14 (1988), H. 11 Y1 - 1988 SN - 0305-4616 SP - 1411 EP - 1421 ER - TY - JOUR A1 - Hoyler, Friedrich A1 - Colvin, G. G. A1 - Robinson, S. J. T1 - E0 transitions in 106Pd studied by neutron capture / G. G. Colvin ; F. Hoyler ; S. J. Robinson JF - Journal of physics / G. 13 (1987), H. 2 Y1 - 1987 SN - 0305-4616 SP - 191 EP - 204 ER - TY - JOUR A1 - Förster, Arnold A1 - Spitzer, A. A1 - Lüth, H. T1 - The adsorption of fluor-carbon complexes on GaAs(110) studied by electron energy loss spectroscopy JF - Surface Science. 172 (1986), H. 1 Y1 - 1986 SN - 0039-6028 N1 - ISSN der E-Ausg.: 0039-6028 SP - 174 EP - 182 ER - TY - JOUR A1 - Förster, Arnold A1 - Lüth, H. T1 - Investigation of the InSb(110)-Sn schottky barrier by means of electron energy loss spectroscopy JF - Surface Science. 189-190 (1987) Y1 - 1987 SN - 0039-6028 N1 - ISSN der E-Ausg.: 0039-6028 SP - 307 EP - 314 ER - TY - JOUR A1 - Ungermanns, C. A1 - Ahe, M. v. d. A1 - Carius, Reinhard A1 - Förster, Arnold T1 - Optimization of III/V binary growth with RHEED in MOMBE / C. Ungermanns ; M. v. d. Ahe ; R. Carius ; A. Förster ... JF - Fresenius' Journal of Analytical Chemistry. 358 (1997), H. 1-2 Y1 - 1997 SN - 0937-0633 N1 - ISSN der E-Ausg.: 1432-1130 SP - 101 EP - 104 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 - Förster, Arnold A1 - Morvic, M. A1 - Betko, J. T1 - On the hopping and band conductivity in molecular-beam epitaxial low-temperature grown GaAs / M. Morvic ; J. Betko ; J. Novák ... A. Förster JF - Physica status solidi / B, Basic research. 205 (1998), H. 1 Y1 - 1998 SN - 1521-3951 SP - 125 EP - 128 ER - TY - JOUR A1 - Förster, Arnold A1 - Brugger, H. A1 - Meiners, U. T1 - High quality GaAs-based resonant tunneling diodes for high frequency device applications / H. Brugger ; U. Meiners ; C. Wölk ... A. Förster ... JF - Proceedings : August 5 - 7, 1991, Cornell University, Ithaca, New York / R. J. Trew, General Chairman Y1 - 1991 SN - 0-7803-0491-8 N1 - Cornell Conference on Advanced Concepts in High Speed Semiconductor Devices and Circuits <1991, Ithaca, NY> SP - 39 EP - ff. PB - Inst. of Electrical and Electronics Engineers CY - Piscataway, NJ ER - TY - JOUR A1 - Förster, Arnold A1 - Dubecky, F.. A1 - Darmo, J. T1 - Investigation of deep-level states in bulk and low temperature MBE semiinsulating GaAs by admittance transient spectroscopy / F. Dubecky ; J. Darmo ; M. Darviras ; A. Förster ... JF - Semi-insulating III-V materials, Ixtapa, Mexico 1992 : proceedings of the 7th Conference on Semi-insulating III-V Materials, Ixtapa, Mexico, 21 - 24 April 1992 / ed. by C. J. Miner ... Y1 - 1994 SN - 0-7503-0242-9 N1 - Conference on Semi-Insulating III-V Materials <7, 1992, Ixtapa> SP - 265 EP - 272 PB - Inst. of Physics Publ. CY - Bristol [u.a.] ER - TY - JOUR A1 - Förster, Arnold A1 - Dieker, C. A1 - Gerthsen, D. T1 - Microstructure of the AlAs/GaAs and AlAs/InGaAs resonant tunneling diodes and its correlation with the electrical properties / C. Dieker ; D. Gerthsen ; A. Förster ... JF - Microscopy of semiconducting materials 1993 : proceedings of the Royal Microscopical Society Conference held at Oxford University, 5 - 8 April 1993 / ed. by A. G. Cullis ... - (Conference series / Institute of Physics ; 134) Y1 - 1993 SN - 0-7503-0290-9 N1 - Royal Microscopical Society Conference on Microscopy of Semiconducting Materials <8, 1993, Oxford> ; MSM <8, 1993, Oxford> SP - 253 EP - ff. PB - Institute of Physics CY - Bristol [u.a.] ER - TY - JOUR A1 - Walther, T. A1 - Gerthsen, D. A1 - Carius, Reinhard A1 - Förster, Arnold T1 - AlAs/GaAs Quantum well structures: Interface properties investigated by high-resolution transmission electron microscopy and photoluminescence spectroscopy / T. Walther ; D. Gerthsen ; R. Carius ; A. Förster ... JF - Microscopy of semiconducting materials 1993 : proceedings of the Royal Microscopical Society Conference held at Oxford University, 5 - 8 April 1993 / ed. by A. G. Cullis ... - (Conference series / Institute of Physics ; 134) Y1 - 1993 SN - 0-7503-0290-9 N1 - Royal Microscopical Society Conference on Microscopy of Semiconducting Materials <8, 1993, Oxford> ; MSM <8, 1993, Oxford> SP - 449 EP - ff. PB - Institute of Physics CY - Bristol [u.a.] ER - TY - JOUR A1 - Förster, Arnold A1 - Kordos, P. A1 - Betko, J. T1 - Electrical and structural characterization of MBE GaAs grown at temperatures between 200 and 600 °C / P. Kordos ; J. Betko; A. Förster ... JF - Compound semiconductors, 1994 : proceedings of the twenty-first International Symposium on Compound Semiconductors held in San Diego, California, 18 - 22 September, 1994 / ed. by Herb Goronkin ... - (Conference series / Institute of Physics ; 141) Y1 - 1995 SN - 0-7503-0226-7 N1 - International Symposium on Compound Semiconductors <21, 1994, San Diego, Calif.> ; Institute of Physics SP - 295 EP - ff. PB - Institute of Physics CY - Bristol [u.a.] ER - TY - JOUR A1 - Förster, Arnold A1 - Hardtdegen, Hilde A1 - Ungermanns, C. T1 - Comparative investigation of electrical and optical characteristics of AlxGa1-xAs/GaAs structures deposited by LP-MOVPE and MBE / H. Hardtdegen ; M. Hollfelder ; C. Ungermanns ... A. Förster ... JF - Compound semiconductors, 1994 : proceedings of the twenty-first International Symposium on Compound Semiconductors held in San Diego, California, 18 - 22 September, 1994 / ed. by Herb Goronkin ... - (Conference series / Institute of Physics ; 141) Y1 - 1995 SN - 0-7503-0226-7 N1 - International Symposium on Compound Semiconductors <21, 1994, San Diego, Calif.> ; Institute of Physics SP - 81 EP - ff. PB - Institute of Physics CY - Bristol [u.a.] ER - TY - JOUR A1 - Förster, Arnold A1 - Tillmann, K. A1 - Gerthsen, D. T1 - Morphological transformations of MBE-grown In0.6Ga0.4As island on GaAs(001) substrates / K. Tillmann ; D. Gerthsen ; P. Pfundstein ; A. Förster ... JF - Microscopy of semiconducting materials 1995 : proceedings of the Institute of Physics Conference held at Oxford University, 20 - 23 March 1995 / Ed. by A G Cullis ... - (Conference series / Institute of Physics ; 146) Y1 - 1995 SN - 0-7503-0347-6 N1 - MSM <9, 1995, Oxford> ; Institut of Physics SP - 195 EP - ff. PB - Institute of Physics CY - Bristol [u.a.] ER - TY - JOUR A1 - Förster, Arnold A1 - Lauter, J. A1 - Lüth, H. T1 - AlGaAs/GaAs avalanche detector array -1 GBit/s X-ray receiver for timing measurements / J. Lauter ; A. Förster ; H. Lüth ... JF - 1995 IEEE conference record : October 21 - 28, 1995, San Francisco / Patricia A. Moonier, guest ed. - Vol. 1 Y1 - 1996 SN - 0-7803-3180-X N1 - Nuclear Science Symposium <1995, San Francisco, Calif.> ; Medical Imaging Conference <1995, San Francisco, Calif.> ; IEEE catalog number: 95CH35898 SP - 579 EP - ff. PB - IEEE Service Center CY - Piscataway, NJ ER - TY - JOUR A1 - Förster, Arnold A1 - Lentzen, M. A1 - Gerthsen, D. T1 - Strain relaxation of lattice-mismatched In0.2Ga0.8As/GaAs superlattices on GaAs(001) substrates / M. Lentzen ; D. Gerthsen ; A. Förster ... JF - Microscopy of semiconducting materials 1995 : proceedings of the Institute of Physics Conference held at Oxford University, 20 - 23 March 1995 / Ed. by A G Cullis ... - (Conference series / Institute of Physics ; 146) Y1 - 1995 SN - 0-7503-0347-6 N1 - MSM <9, 1995, Oxford> ; Institut of Physics SP - 357 EP - ff. PB - Institute of Physics CY - Bristol [u.a.] ER - TY - JOUR A1 - Förster, Arnold A1 - Rose, D. A1 - Pietsch, U. A1 - Metzger, T. H. T1 - Depth resolved investigations of the relaxation behaviour in strained GaInAs/GaAs superlattices using grazing incidence X-ray diffraction / Rose, D. ; Pietsch, U. ; Förster, A. ; Metzger, T. H. JF - Nuclear instruments and methods in physics research / Section B, Beam interactions with materials and atoms. 97 (1995), H. 1-4 Y1 - 1995 SN - 0168-583X SP - 333 EP - 336 ER - TY - JOUR A1 - Förster, Arnold A1 - Rosenauer, A. A1 - Remmele, T. T1 - Strain determination in mismatched semiconductor heterostructures by the digital analysis of lattice images / A. Rosenauer ; T. Remmele ; U. Fischer ; A. Förster ... JF - Microscopy of semiconducting materials 1997 : proceedings of the Royal Microscopical Society Conference held at Oxford University, 7 - 10 April 1997 / ed. by A. G. Cullis ... - (Conference series / Institute of Physics ; 157) Y1 - 1997 SN - 0-7503-0464-2 N1 - MSM <10, 1997, Oxford> ; Conference on Microscopy of Semiconducting Materials <10, 1997, Oxford> ; Institut of Physics SP - 39 EP - ff. PB - Institute of Physics CY - Bristol [u.a.] ER - TY - JOUR A1 - Förster, Arnold A1 - Schmidt, T. A1 - Haug, R. J. T1 - Imaging the local density of states in a disordered semiconductor / T. Schmidt ; R. J. Haug ; V. I. Fal'ko ... A. Förster ... JF - 23rd International Conference on the Physics of Semiconductors : Berlin, Germany, July 21 - 26, 1996 / ed.: Matthias Scheffler ... - Vol. 3 Y1 - 1996 SN - 981-02-2947-X N1 - International Conference on the Physics of Semiconductors <23, 1996, Berlin> SP - 2251 EP - ff. PB - World Scientific CY - Singapore [u.a.] 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 - Janssen, G. A1 - Roer, T. G. van de T1 - Logic Circuits with reduced complexity based on devices with higher functionality / G. Janssen ; T. G. van de Roer ; W. Prost ... A. Förster JF - Proceedings / STW/SAFE 2nd Annual Workshop on Semiconductor Advances for Future Electronics, Safe '99 - ProRISC/IEEE 10th Annual Workshop on Circuits, Systems and Signal Processing, ProRISC 99 : November 24 - 26, 1999, Mierlo, The Netherlands [Elektronische Ressource] Y1 - 1999 N1 - SAFE <2, 1999, Mierlo> ; Workshop on Circuits, Systems and Signal Processing <10, 1999, Mierlo> ; Stichting voor de Technische Wetenschappen SP - 219 PB - Technology Foundation, STW CY - Utrecht 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 - Leuther, A. A1 - Lüth, H. T1 - DX centres, conduction band offsets and Si-dopant segregation in heterostructures / A. Leuther ; A. Förster ; H. Lüth ... JF - Semiconductor science and technology. 11 (1996), H. 5 Y1 - 1996 SN - 1361-6641 SP - 766 EP - 771 ER - TY - JOUR A1 - Förster, Arnold A1 - Hu, Quing A1 - Verghese, S. T1 - High-frequency (f ~ 1 THz) studies of quantum-effect devices / Qing Hu ; S. Verghese ; R. A. Wyss ... A. Förster JF - Semiconductor science and technology. 11 (1996), H. 12 Y1 - 1996 SN - 1361-6641 SP - 1888 EP - 1894 ER - TY - JOUR A1 - Förster, Arnold A1 - Schmidt, T. A1 - Haug, R. J. T1 - Spectroscopy of local density of states fluctuations in a disordered conductor / T. Schmidt ; R. J. Haug ; V. I. Fal'ko ... A. Förster ... JF - Europhysics letters. 36 (1996), H. 1 Y1 - 1996 SN - 1286-4854 SP - 61 EP - 66 ER - TY - JOUR A1 - Förster, Arnold A1 - Tillmann, K. A1 - Thust, M. T1 - 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. Förster ... JF - Philosophical magazine / Letters. 74 (1996), H. 5 Y1 - 1996 SN - 1362-3036 SP - 309 EP - 315 ER - TY - JOUR A1 - Förster, Arnold A1 - Lauter, J. A1 - Lüth, H. T1 - AlGaAs/GaAs avalanche detector array-1 GBit/s X-ray receiver fortiming measurements / J. Lauter ; A. Förster ; H. Lüth ... JF - IEEE Transactions on Nuclear Science (T-NS). 43 (1996), H. 3, Part 2 Y1 - 1996 SN - 0018-9499 SP - 1446 EP - 1451 ER - TY - JOUR A1 - Förster, Arnold A1 - Lachenmann, S. G. A1 - Kastalsky, A. T1 - Novel hybrid Nb/InAs/Nb step junctions / S. G. Lachenmann ; A. Kastalsky ; I. Friedrich ; A. Förster ... JF - Czechoslovak journal of physics . 46 (1996), H. S2 Y1 - 1996 SN - 0011-4626 SP - 659 ER - TY - JOUR A1 - Förster, Arnold A1 - Schmidt, T. A1 - Haug, R. J. T1 - Spectroscopy of the single-particle states of a quantum-dot molecule / T. Schmidt ; R. J. Haug ; K. v. Klitzing ; A. Förster ... JF - Physical review letters. 78 (1997), H. 8 Y1 - 1997 SN - 0031-9007 N1 - ISSN der E-Ausg.: 1079-7114 SP - 1544 EP - 1547 ER - TY - JOUR A1 - Förster, Arnold A1 - Schmidt, T. A1 - Haug, R. J. T1 - Observation of the local structure of landau bands in a disordered conductor / T. Schmidt ; R. J. Haug ; Vladimir I. Fal'ko ... A. Förster ... JF - Physical review letters. 78 (1997), H. 8 Y1 - 1997 SN - 0031-9007 N1 - ISSN der E-Ausg.: 1079-7114 SP - 1540 EP - 1543 ER - TY - JOUR A1 - Förster, Arnold A1 - Rosenauer, A. A1 - Remmele, T. T1 - Atomic scale strain measurements by the digital analysis of transmission electron microscopic lattice images / A. Rosenauer ; T. Remmele ; D. Gerthsen ... A. Förster JF - Optik : international journal for light and electron optics. 105 (1997), H. 3 Y1 - 1997 SN - 0030-4026 SP - 99 EP - 107 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 - 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 A1 - Döhler, G. H A1 - Heber, J. T1 - Hot electrons in n-i-p.i-based devices / G. H. Döhler ; J. Heber ... A. Förster ... JF - Hot electrons in semiconductors : physics and devices / ed. by N. Balkan. - (Series on semiconductor science and technology ; 5) Y1 - 1998 SN - 0-19-850058-0 SP - 478 EP - 504 PB - Clarendon Press CY - Oxford 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 - Mikulics, M. A1 - Camara, I. A1 - Hardt, A. van der A1 - Fox, A. A1 - Förster, Arnold A1 - Gusten, R. A1 - Lüth, H. A1 - Kordos, P. T1 - Generation of THz radiation by photomixing in low-temperature-grown MBE GaAs JF - Fifth International Conference on Advanced Semiconductor Devices and Microsystems : conference proceedings ; Smolenice Castle, Slovakia, October 17 - 21, 2004 / [organizers: Institute of Electrical Engineering, Slovak Academy of Sciences, Bratislava and Microelectronics Department, Faculty of Electrical Engineering and Information Technology, Slovak University of Technology, Bratislava]. Ed. by J. Osvald Y1 - 2004 SN - 0-7803-8335-7 N1 - International Conference on Advanced Semiconductor Devices and Microsystems <5, 2004, Smolenice> ; ASDAM <5, 2004, Smolenice> ; IEEE catalog numer: 04EX867 SP - 231 EP - 234 PB - IEEE Operations Center CY - Piscataway, NJ ER - TY - JOUR A1 - Zatko, B. A1 - Dubecký, F. A1 - Bohacek, P. A1 - Gombia, E. A1 - Frigeri, P. A1 - Mosca, R. A1 - Franchi, S. A1 - Huarn, J. A1 - Nescas, V. A1 - Sekacova, M. A1 - Förster, Arnold A1 - Kordos, P. T1 - On the spectrometric performance limit of radiation detectors based on semi-insulating GaAs JF - Nuclear instruments and methods in physics research, Section A. 531 (2004), H. 1-2 Y1 - 2004 SN - 0168-9002 SP - 111 EP - 120 ER - TY - JOUR A1 - Srnanek, R. A1 - Geurts, J. A1 - Lentze, M. A1 - Irmer, G. A1 - Donoval, D. A1 - Brdecka, P. A1 - Kordos, P. A1 - Förster, Arnold A1 - Sciana, B. A1 - Radziewicz, D. A1 - Tlaczala, M. T1 - Study of d-doped GaAs layers by micro-Raman spectroscopy on bevelled samples JF - Applied surface science . 230 (2004), H. 1 -4 Y1 - 2004 SN - 0169-4332 N1 - ISSN der E-Ausg.: 0169-4332 SP - 379 EP - 385 ER - TY - JOUR A1 - Mikulics, M. A1 - Adam, R. A1 - Kordos, P. A1 - Förster, Arnold A1 - Lüth, H. A1 - Wu, S. A1 - Zheng, X. A1 - Sobolewski, R. T1 - Ultrafast low-temperature-grown epitaxial GaAs photodetectors transferred on flexible plastic substrates JF - IEEE photonics technology letters : IEEE PTL. 17 (2005), H. 8 Y1 - 2005 SN - 1041-1135 SP - 1725 EP - 1727 ER - TY - JOUR A1 - Förster, Arnold A1 - Lepsa, M. I. A1 - Freundt, D. T1 - Hot electron injector Gunn diode for advanced driver assistance systems JF - Applied physics A: materials science and processing. 87 (2007), H. 3 Y1 - 2007 SN - 0947-8396 N1 - ISSN der E-Ausg.: 1432-0630 ; Special issue SP - 545 EP - 558 ER - TY - JOUR A1 - Kern, Alexander A1 - Heidler, F. A1 - Zischank, W. T1 - Induced overvoltages in cable ducts taking into account the current flow into earth / F. Heidler ; W. Zischank ... A. Kern ... JF - Conference proceedings : 14th - 18th September 1998, [Burlington Hotel, Birmingham, United Kingdom] / organised by: School of Engineering and Advanced Technology, Staffordshire University, United Kingdom Y1 - 1998 N1 - International Conference on Lightning Protection <24, 1998, Birmingham> ; School of Engineering and Advanced Technology ; ICLP <4, 1998, Birmingham> CY - Birmingham ER - TY - JOUR A1 - Rateike, Franz-Matthias A1 - Siebourg, W. A1 - Schmid, H. A1 - Anders, S. T1 - Birefringence - An important property of plastic substrates for magneto-optical storage disks / W. Siebourg ; H. Schmid ; F. M. Rateike ; S. Anders ; U. Grigo ; H. Löwer JF - Polymer engineering & science / Society of Plastics Engineers. 30 (1990), H. 18 Y1 - 1990 SN - 0032-3888 SP - 1133 EP - 1139 ER - TY - JOUR A1 - Rateike, Franz-Matthias A1 - Weyer, K. G. A1 - Wiedenmann, H. A1 - MacGillivray, W. R. T1 - Observation of absorptive optical bistability in a fabry-perot cavity containing multiple atomic beams / K. G. Weyer ; H. Wiedenmann ; M. Rateike ; W. R. Mac Gillivray ; P. Meystre ; H. Walther JF - Optics communications. 37 (1981), H. 6 Y1 - 1981 SN - 0030-4018 SP - 426 EP - 430 ER - TY - JOUR A1 - Alexopoulos, Spiros A1 - Breitbach, Gerd A1 - Hoffschmidt, Bernhard A1 - Stobbe, P. T1 - Computational fluid flow of porous resic ceramic filtering modules and optimization of the channel edge form geometry JF - Proceedings : April 14 - 18, 2008, Leipzig, Germany / hosted by VDI, Society for Chemical and Process Engineering . Vol 2 Y1 - 2008 N1 - Verein Deutscher Ingenieure ; World Filtration Congress ; (10 : ; 2008.04.14-18 : ; Leipzig) ; WFC ; (10 : ; 2008.04.14-18 : ; Leipzig) SP - 300 EP - 304 PB - Filtech Exhibitions CY - Meerbusch ER - TY - JOUR A1 - Alexopoulos, Spiros A1 - Breitbach, Gerd A1 - Hoffschmidt, Bernhard A1 - Stobbe, P. T1 - Optimization of the geometry of porous SiC ceramic filtering modules using numerical methods JF - Developments in porous, biological and geopolymer ceramics : a collection of papers presented at the 31st International Conference on Advanced Ceramics and Composites, January 21 - 26, 2007, Daytona Beach, Florida ; [papers presented at the Symposium on Porous Ceramics: Novel Developments and Applications] / ed.: Manuel Brito ... Vol. ed.: Jonathan Salem ... The American Ceramics Society Y1 - 2008 SN - 9780470196403 N1 - Ceramic engineering and science proceedings ; 28,9 SP - 95 EP - 104 PB - Wiley CY - Hoboken, NJ ER - TY - JOUR A1 - Helsper, Christoph A1 - Horn, Hans-Georg A1 - Schneider, Friedhelm A1 - Wehner, Birgit T1 - Intercomparison of five mobility size spectrometers for measuring atmospheric submicrometer aerosol particles / Helsper, Christoph ; Horn, Hans-Georg ; Schneider, Friedhelm ; Wehner, Birgit ; Wiedensohler, Alfred JF - Gefahrstoffe, Reinhaltung der Luft. Air Quality Control. 68 (2008), H. 11-12 Y1 - 2008 SN - 0949-8036 SP - 475 EP - 481 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 . 35 (2010), H. 7 Y1 - 2010 SN - 0960-1481 SP - 1352 EP - 1356 ER - TY - JOUR A1 - Schwarzer, Klemens A1 - Silva, Maria Eugenia Vieira da T1 - Characterisation and design methods of solar cookers / Schwarzer, Klemens ; Silva, Maria Eugenia Vieira da JF - Solar energy. 82 (2008), H. 2 Y1 - 2008 SN - 0038-092X SP - 157 EP - 163 ER - TY - JOUR A1 - Bouquegneau, Christian A1 - Kern, Alexander A1 - Rousseau, Alain T1 - Lightning safety guidelines Y1 - 2010 N1 - Ground´2010 International Conference on Grounding and Earthing ; 4th International Conference ond Lightning Physics and Effects, Nov. 2010 Salvador - Brazil SP - 1 EP - 6 ER - TY - JOUR A1 - Kern, Alexander A1 - Frentzel, Ralf A1 - Behrens, Jörg T1 - Simulation of the transient voltages in the auxiliary power network of a large power plant in case of a direct lightning strike to the high-voltage overhead transmission line Y1 - 2010 N1 - 30th International Conference on Lightning Protection, Cagliari (Italien), 2010 SP - 749-1 EP - 749-7 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 ER - TY - JOUR A1 - Schwarzer, Klemens A1 - da Silva, Vieira E. A1 - Hoffschmidt, Bernhard A1 - Schwarzer, T. T1 - A new solar desalination system with heat recovery for decentralised drinking water production JF - Desalination. 248 (2009), H. 1-3 Y1 - 2009 SN - 0011-9164 N1 - Water and Sanitation in International Development and Disaster Relief (WSIDDR) International Workshop Edinburgh, Scotland, UK, 28–30 May 2008 SP - 204 EP - 211 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 - JOUR A1 - Werner, Frederik A1 - Krumbe, Christoph A1 - Schumacher, Katharina A1 - Groebel, Simone A1 - Spelthahn, Heiko A1 - Stellberg, Michael A1 - Wagner, Torsten A1 - Yoshinobu, Tatsuo A1 - Selmer, Thorsten A1 - Keusgen, Michael A1 - Baumann, Marcus A1 - Schöning, Michael Josef T1 - Determination of the extracellular acidification of Escherichia coli by a light-addressable potentiometric sensor JF - Physica status solidi (a) : applications and material science. 208 (2011), H. 6 Y1 - 2011 SN - 1862-6319 SP - 1340 EP - 1344 PB - Wiley CY - Weinheim ER - TY - JOUR A1 - Kern, Alexander A1 - Schelthoff, Christof A1 - Mathieu, Moritz T1 - Calculation of interception efficiencies for airterminations using a dynamic electro-geometrical model Y1 - 2011 N1 - XI International Symposium on Lightning Protection (SIPDA), Fortaleza (Brasilien), 2011. SP - 1 EP - 6 PB - IEEE CY - New York ER - TY - JOUR A1 - Landers, Ernst Ulrich A1 - Kern, Alexander T1 - Future evolution of risk management for structures : Advancement for the future IEC 62305-2 Ed3 Y1 - 2011 N1 - XI International Symposium on Lightning Protection (SIPDA), Fortaleza (Brasilien), 2011. SP - 1 EP - 6 PB - IEEE CY - New York 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 - Geimer, Konstantin A1 - Sauerborn, Markus A1 - Hoffschmidt, Bernhard A1 - Schmitz, Mark A1 - Göttsche, Joachim T1 - Test Facility for Absorber Specimens of Solar Tower Power Plants JF - Advances in Science and Technology. 74 (2010) Y1 - 2010 N1 - 5th Forum on New Materials : CIMTEC 2010, Montecatini Terme, Italy 13-18 June 2010. Part C SP - 266 EP - 271 ER - TY - JOUR A1 - Pieper, Martin T1 - Vector hyperinterpolation on the sphere JF - Journal of approximation theory. 156 (2009), H. 2 Y1 - 2009 SN - 0021-9045 SP - 173 EP - 186 ER - TY - JOUR A1 - Pieper, Martin A1 - Klein, Peter T1 - A simple and accurate numerical network flow model for bionic micro heat exchangers JF - Heat mass transfer Y1 - 2011 SN - 0947-7411 VL - 47 IS - 5 SP - 491 EP - 503 PB - Springer CY - Berlin ER - TY - JOUR A1 - Pieper, Martin A1 - Klein, Peter T1 - Application of simple, periodic homogenization techniques to non-linear heat conduction problems in non-periodic, porous media JF - Heat mass transfer N2 - Often, detailed simulations of heat conduction in complicated, porous media have large runtimes. Then homogenization is a powerful tool to speed up the calculations by preserving accurate solutions at the same time. Unfortunately real structures are generally non-periodic, which requires unpractical, complicated homogenization techniques. We demonstrate in this paper, that the application of simple, periodic techniques to realistic media, that are just close to periodic, gives accurate, approximative solutions. In order to obtain effective parameters for the homogenized heat equation, we have to solve a so called “cell problem”. In contrast to periodic structures it is not trivial to determine a suitable unit cell, which represents a non-periodic media. To overcome this problem, we give a rule of thumb on how to choose a good cell. Finally we demonstrate the efficiency of our method for virtually generated foams as well as real foams and compare these results to periodic structures. Y1 - 2012 U6 - http://dx.doi.org/10.1007/s00231-011-0879-4 SN - 0947-7411 VL - 48 IS - 2 SP - 291 EP - 300 PB - Springer CY - Berlin ER - TY - JOUR A1 - Pieper, Martin T1 - Nonlinear integral equations for an inverse electromagnetic scattering problem JF - Journal of Physics Conference Series. 124 (2008) Y1 - 2008 SN - 1742-6596 ER - TY - JOUR A1 - Pieper, Martin A1 - Ivanyshyn, Olha T1 - Nonlinear integral equations for a 3D inverse acoustic scattering problem : abstract / O. Ivanyshyn and M. Pieper Y1 - 2008 N1 - World Congress on Computational Mechanics <8, 2008, Venedig> ; European Congress on Computational Methods in Applied Sciences and Engineering <5, 2008, Venedig> ER - TY - JOUR A1 - Ewe, Hendrik A1 - Klein, Peter A1 - Pieper, Martin A1 - Füldner, G. T1 - Heat conductivity in sintered aluminium fibers JF - Cellular metals for structural and functional applications : CELLMET 2008 ; proceedings of the International Symposium on Cellular Metals for Structural and Functional Applications held October 8 - 10, 2008 in Dresden, Germany / ed. by Günter Stephani Y1 - 2009 SP - 187 EP - 193 PB - Fraunhofer IFAM CY - Dresden ER - TY - JOUR A1 - Pieper, Martin T1 - Multiobjective optimization with expensive objectives applied to a thermodynamic material design problem JF - Proceedings in applied mathematics and mechanics : PAMM. 11 (2011), H. 1 Y1 - 2011 SN - 1617-7061 SP - 733 EP - 734 PB - Wiley CY - Weinheim ER - TY - JOUR A1 - Barsov, S. A1 - Bechstedt, U. A1 - Hardt, Arno T1 - ANKE, a new facility for medium energy hadron physics at COSY-Jülich / S. Barsov [u.a.] JF - Nuclear instruments and methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. Vol. 462, iss. 3 Y1 - 2001 SN - 0167-5087 (Print) ; 0168-9002 (E-journal) SP - 364 EP - 381 ER - TY - JOUR A1 - Balewski, J. A1 - Brauksiepe, S. A1 - Hardt, Arno T1 - Threshold measurements at the internal experimental facility COSY-11 / J. Balewski [u.a.] JF - Nuclear physics A. Vol. 626, iss. 1-2 Y1 - 1997 SN - 1873-1554 (E-Journal) ; 0375-9474 (Print) SP - 85 EP - 92 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 - JOUR A1 - Makovicka, C. A1 - Gärtner, G. A1 - Hardt, Arno A1 - Hermann, W. A1 - Wiechert, D. U. T1 - Impregnated cathode surface investigations by SFM/STM and SEM/EDX JF - Applied surface science. Vol. 111 Y1 - 1997 SN - 1873-5584 (E-Journal); 0169-4332 (Print) SP - 70 EP - 75 ER - TY - JOUR A1 - Bechstedt, U. A1 - Haas, H. A1 - Hacker, U. A1 - Hardt, Arno A1 - Henn, K. A1 - Martin, S. 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 - Martin, S. A. A1 - Berg, G. P. A. A1 - Hacker, U. A1 - Hardt, Arno A1 - Köhler, M. A1 - Meißburger, J. A1 - Osterfeld, F. A1 - Prasuhn, D. A1 - Riepe, G. A1 - Rogge, M. A1 - Schult, O. 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 - JOUR A1 - Hardt, Arno A1 - Martin, S. A1 - Meißburger, J. 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 - http://dx.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 - JOUR A1 - Lück, Reinhard A1 - Gerling, Ulrich A1 - Predel, Bruno T1 - An entropy paradox of the association model JF - Zeitschrift für Metallkunde : international journal of materials research and advanced techniques. Bd. 80, H. 4 Y1 - 1989 SN - 0044-3093 ; 0179-4841 SP - 270 EP - 275 ER - TY - JOUR A1 - Fischer, W. A. A1 - Dören, Horst-Peter A1 - Janke, Dieter T1 - Aluminium nitride probes for application in iron melts JF - Archiv für das Eisenhüttenwesen. 52 (1981), H. 3 Y1 - 1981 SN - 0003-8962 SP - 91 EP - 98 ER - TY - JOUR A1 - Sommer, F. A1 - Gerling, Ulrich A1 - Predel, Bruno T1 - Comments on 'On the evaluation of interchange energies and the equilibrium constant from mixing enthalpies of a regular associated solution' by S. Lele, G.V.S. Sastry, and P. Ramachandrarao = Kommentar zu 'Zur Berechnung der Wechselwirkungsenergien und der Gleichgewichtskonstanten aus Mischungsenthalpien in regulären assoziierten Lösungen' von S. Lele, G.V.S. Sastry und P. Ramachandrarao JF - Zeitschrift für Metallkunde : international journal of materials research and advanced techniques. Bd. 75, H. 6 Y1 - 1984 SN - 0044-3093 ; 0179-4841 SP - 449 EP - 454 ER - TY - JOUR A1 - Gerling, Ulrich A1 - Pool, M. J. A1 - Predel, Bruno T1 - A contribution to the associate model for binary liquid alloys = Ein Beitrag zum Assoziat-Modell für binäre flüssige Legierungen JF - Zeitschrift für Metallkunde : international journal of materials research and advanced techniques. Bd. 74, H. 9 Y1 - 1983 SN - 0044-3093 ; 0179-4841 SP - 616 EP - 619 ER - TY - JOUR A1 - Arpshofen, Ingo A1 - Pool, M. J. A1 - Sommer, Ferdinand A1 - Gerling, Ulrich A1 - Predel, Bruno A1 - Schultheiss, Emil T1 - Determination of the integral mixing enthalpies in the Cu-Pd-Si liquid ternary alloy system at 1600 K JF - Zeitschrift für Metallkunde : international journal of materials research and advanced techniques. Bd. 74, H. 1 Y1 - 1983 SN - 0044-3093 ; 0179-4841 SP - 25 EP - 32 ER - TY - JOUR A1 - Sommer, Ferdinand A1 - Gerling, Ulrich A1 - Predel, Bruno T1 - On the evaluation of interchange energies and the equilibrium-constant from mixing enthalpies of a regular associated solution-comment JF - Zeitschrift für Metallkunde : international journal of materials research and advanced techniques. Bd. 75, H. 11 Y1 - 1984 SN - 0044-3093 ; 0179-4841 SP - 898 ER - TY - JOUR A1 - Meliß, Michael A1 - Oesterwind, Dieter A1 - Voß, Alfred T1 - Non-nuclear and non-fossil energy resources and their possibilities for future power generation JF - Kerntechnik N2 - It must be stressed that the assessment of the exploitation possibilities of the energy resources discussed in this paper requires further studies. With this proviso, the situation can be provisionally summarised as follows: The total potential of known geothermal steam sources is only 64 GW. Geothermal energy could therefore only make a significant contribution to covering the worldwide power needs if we succeed in exploiting dry geothermal reservoirs. Exploitation of tidal energy is limited to a few geographically favourable locations. The power generation potential at these locations is only about 64 GW. An important drawback of tidal power is discontinuous power generation. Large scale exploitation of wind, wave and glacier energy, and of ocean heat, requires solution of a number of technological problems. The environmental effects of exploitation of these energy resources are to some extent of a qualitatively different nature from those of operation of fossil-fuel-fired and of nuclear power plants. The scanty knowledge in this area often results in these effects being underestimated. In any case, however, it would be deliberately misleading to postulate that any form of power generation is possible without some detrimental effects on the environment. It may be stated in conclusion that, owing to their small potential or to the as yet insufficiently advanced technological development, none of the energy resources discussed in this paper can make a significant contribution to the solution of middle-term energy supply problems, i.e., to a rapid replacement of mineral oil and natural gas. Y1 - 1975 U6 - http://dx.doi.org/10.18419/opus-8093 SN - 0932-3902 N1 - Printausg. in der Bibliothek vorhanden: 63 ZS 010-1975 VL - 17 IS - 7 SP - 301 EP - 306 PB - De Gruyter CY - Berlin ER - TY - JOUR A1 - Hellmanns, Mark A1 - Böhm, Stefan A1 - Dilger, Klaus T1 - Manual applications of adhesives JF - Journal of adhesion and interface Y1 - 2006 VL - Vol. 7 IS - No. 4 SP - 24 EP - 27 ER - TY - JOUR A1 - Böhm, Stefan A1 - Hellmanns, Mark A1 - Backes, Andreas A1 - Dilger, Klaus T1 - Lock-in thermography based NDT of parts for the automotive industry JF - Journal of adhesion and interface Y1 - 2006 VL - Vol. 7 IS - No. 4 SP - 10 EP - 12 ER - TY - JOUR A1 - Sabitova, A. A1 - Ebert, Ph. A1 - Lenz, A. A1 - Schaafhausen, S. A1 - Ivanova, L. A1 - Dähne, M. A1 - Hoffmann, A. A1 - Dunin-Borkowski, R. E. A1 - Förster, Arnold A1 - Grandidier, B. A1 - Eisele, H. T1 - Intrinsic bandgap of cleaved ZnO(112¯0) surfaces JF - Applied physics letters Y1 - 2013 SN - 1077-3118 (E-Journal); 0003-6951 (Print) VL - Vol. 102 SP - 021608 ER - TY - JOUR A1 - Alebouyeh Samami, Behzad A1 - Pieper, Martin A1 - Breitbach, Gerd A1 - Hodapp, Josef T1 - Heat production in the windings of the stators of electric machines under stationary condition JF - Heat and mass transfer N2 - In electric machines due to high currents and resistive losses (joule heating) heat is produced. To avoid damages by overheating the design of effective cooling systems is required. Therefore the knowledge of heat sources and heat transfer processes is necessary. The purpose of this paper is to illustrate a good and effective calculation method for the temperature analysis based on homogenization techniques. These methods have been applied for the stator windings in a slot of an electric machine consisting of copper wires and resin. The key quantity here is an effective thermal conductivity, which characterizes the heterogeneous wire resin-arrangement inside the stator slot. To illustrate the applicability of the method, the analysis of a simplified, homogenized model is compared with the detailed analysis of temperature behavior inside a slot of an electric machine according to the heat generation. We considered here only the stationary situation. The achieved numerical results are accurate and show that the applied homogenization technique works in practice. Finally the results of simulations for the two cases, the original model of the slot and the homogenized model chosen for the slot (unit cell), are compared to experimental results. Y1 - 2014 U6 - http://dx.doi.org/10.1007/s00231-014-1371-8 SN - 0947-7411 (Print) ; 1432-1181 (E-Journal) VL - 50 SP - 1707 EP - 1716 PB - Springer CY - Heidelberg ER - TY - JOUR A1 - Marx, Ulrich A1 - Schenk, Friedrich A1 - Behrens, Jan A1 - Meyr, Ulrike A1 - Wanek, Paul A1 - Zang, Werner A1 - Schmitt, Robert A1 - Brüstle, Oliver A1 - Zenke, Martin A1 - Klocke, Fritz T1 - Automatic production of induced pluripotent stem cells JF - Procedia CIRP : First CIRP Conference on BioManufacturing Y1 - 2013 SN - 2212-8271 VL - Vol. 5 SP - 2 EP - 6 PB - Elsevier CY - Amsterdam ER - TY - JOUR A1 - Srivastava, A. A1 - Lahiri, S. A1 - Maiti, M. A1 - Knolle, F. A1 - Hoyler, Friedrich A1 - Scherer, Ulrich W. A1 - Schnug, E. W. T1 - Study of naturally occurring radioactive material (NORM) in top soil of Punjab State from the North Western part of India JF - Journal of Radioanalytical and Nuclear Chemistry Y1 - 2014 U6 - http://dx.doi.org/0.1007/s10967-014-3450-1 SN - 1588-2780 (E-Journal); 0022-4081 (Print); 0134-0719 (Print); 0236-5731 (Print); 1417-2097 (Print) VL - 2014 IS - 302 SP - 1049 EP - 1052 PB - Springer Nature CY - Basel ER - TY - JOUR A1 - Jildeh, Zaid B. A1 - Wagner, Torsten A1 - Schöning, Michael Josef A1 - Pieper, Martin T1 - Simulating the electromagnetic‐thermal treatment of thin aluminium layers for adhesion improvement JF - Physica status solidi (a) N2 - A composite layer material used in packaging industry is made from joining layers of different materials using an adhesive. An important processing step in the production of aluminium-containing composites is the surface treatment and consequent coating of adhesive material on the aluminium surface. To increase adhesion strength between aluminium layer and the adhesive material, the foil is heat treated. For efficient heating, induction heating was considered as state-of-the-art treatment process. Due to the complexity of the heating process and the unpredictable nature of the heating source, the control of the process is not yet optimised. In this work, a finite element analysis of the process was established and various process parameters were studied. The process was simplified and modelled in 3D. The numerical model contains an air domain, an aluminium layer and a copper coil fitted with a magnetic field concentrating material. The effect of changing the speed of the aluminium foil (or rolling speed) was studied with the change of the coil current. Statistical analysis was used for generating a general control equation of coil current with changing rolling speed. Y1 - 2015 U6 - http://dx.doi.org/10.1002/pssa.201431893 SN - 1862-6319 VL - Vol. 212 IS - 6 SP - 1234 EP - 1241 PB - Wiley CY - Weinheim 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 - 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 - Vogt, Christian A1 - Iwanowski-Strahser, Katha A1 - Marquart, Gabriele A1 - Arnold, Juliane A1 - Mottaghy, Darius A1 - Pechnig, Renate A1 - Gnjezda, Daniel A1 - Clauser, Christoph T1 - Modeling contribution to risk assessment of thermal production power for geothermal reservoirs JF - Renewable Energy Y1 - 2013 U6 - http://dx.doi.org/10.1016/j.renene.2012.11.026 SN - 0960-1481 VL - 53 SP - 230 EP - 241 PB - Elsevier CY - Amsterdam ER - TY - JOUR A1 - Vogt, C. A1 - Mottaghy, Darius A1 - Rath, V. A1 - Marquart, G. A1 - Dijkshoorn, L. A1 - Wolf, A. A1 - Clauser, C. T1 - Vertical variation in heat flow on the Kola Peninsula: palaeoclimate or fluid flow? JF - Geophysical Journal International N2 - Following earlier studies, we present forward and inverse simulations of heat and fluid transport of the upper crust using a local 3-D model of the Kola area. We provide best estimates for palaeotemperatures and permeabilities, their errors and their dependencies. Our results allow discriminating between the two mentioned processes to a certain extent, partly resolving the non-uniqueness of the problem. We find clear indications for a significant contribution of advective heat transport, which, in turn, imply only slightly lower ground surface temperatures during the last glacial maximum relative to the present value. These findings are consistent with the general background knowledge of (i) the fracture zones and the corresponding fluid movements in the bedrock and (ii) the glacial history of the Kola area. Y1 - 2014 U6 - http://dx.doi.org/10.1093/gji/ggu282 SN - 1365-246X VL - 199 IS - 2 SP - 829 EP - 843 PB - Oxford University Press CY - Oxford 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 -