H. Hahn

A Measurement Technique for Determination of Frequency vs. Acceleration Characteristics of Quartz Crystal Units, (9999)

Hahn,H., Powell,S.

A computer-controlled g-sensitivity measuring apparatus has been assembled and used to screen 100 MHz AT-cut crystal units for any manufacturing defect. This apparatus obtains the g-sensitivity vs....

Modularer Ansatz zu multifunktionellen Polymer-Peptid-Fasern (2009)

Hahn, H.

Ein Framework und Multi-Applikations-Prototyp für integrierte radiologische Diagnostik und Strahlentherapie (2009)

Thieke, C., Nix, O., Köhn, A., Floca, R., Straaten, D. Van, Hahn, H., ...

Systematic study of strain rate sensitivity of nanostructured Pd alloys using nanoindentation. (2009)

Choi, I.S., Schwaiger, R., Castrup, A., Ivanisenko, Y., Hahn, H., Kraft, O.

138th Annual Meeting and Exhibition of the Minerals, Metals and Materials Society (TMS 2009), San Francisco, Calif., February 15-19, 2009

Effect of the interface roughness on the performance of nanoparticulate zinc oxide field-effect transistors. (2009)

Okamura, K., Mechau, N., Nikolova, D., Hahn, H.

MRS Spring Meeting, San Francisco, Calif., April 13-17, 2009

Microstructure and mechanical properties of near-eutectic ZrO§2-60wt.% Al§2O§3 produced by quenched plasma spraying. (2009)

Suffner, J., Sieger, H., Hahn, H., Dosta, S., Cano, I.G., Guilemany, J.M., ...

Materials Science and Engineering A, 506(2009) S.180-86

Atomic layer deposition and characterization of bismuth oxide thin films. (2009)

Leufke, P.M., Donia, N., Mathur, S., Hahn, H.

Frühjahrstagung DPG, Fachverband Dielektrische Festkörper, Dresden, 22.-27.März 2009

Effect of the interface roughness on the performance of nanoparticulate zinc oxide field-effect transistors. (2009)

Okamura, K., Mechau, N., Niklova, D., Hahn, H.

Frühjahrstagung DPG, Fachverband Dünne Schichten, Dresden, 22.-27.März 2009

Influence of stabilizers in ZnO nanodispersions on the FET device performance. (2009)

Bubel, S., Niklova, D., Mechau, N., Hahn, H.

Frühjahrstagung DPG, Fachverband Dünne Schichten, Dresden, 22.-27.März 2009

Electrochemically-gated field-effect transistor with indium thin oxide nanoparticles as active layer. (2009)

Dasgupta, S., Kruk, R., Hahn, H.

Frühjahrstagung DPG, Fachverband Metall- und Materialphysik, Dresden, 22.-27.März 2009

Electrostatic doping of strongly correlated systems. (2009)

Mishra, A.K., Darbandi, A., Kruk, R., Hahn, H.

Frühjahrstagung DPG, Fachverband Metall- und Materialphysik, Dresden, 22.-27.März 2009

Synthesis and characterization of nanocomposites for application as nanoporous cathodes in solid oxide fuel cell. (2009)

Darbandi, A.J., Hahn, H.

Frühjahrstagung DPG, Fachverband Metall- und Materialphysik, Dresden, 22.-27.März 2009

Study on structural and electrical properties of Al-doped ZnO thin films prepared by sol-gel method. (2009)

Nasr, B., Dasgupta, S., Kruk, R., Hahn, H.

Frühjahrstagung DPG, Fachverband Metall- und Materialphysik, Dresden, 22.-27.März 2009

The tuneable electron mobility in charged indium tin oxide thin films. (2009)

Dasgupta, S., Lukas, M., Mechau, N., Kruk, R., Hahn, H.

Frühjahrstagung DPG, Fachverband Metall- und Materialphysik, Dresden, 22.-27.März 2009

Quantification of free volume variations of Pd40Ni40P20 bulk metallic glass deformed by room temperature rolling. (2009)

Xu, Y., Zhang, J., Hahn, H., Li, J.

Frühjahrstagung DPG, Fachverband Metall- und Materialphysik, Dresden, 22.-27.März 2009

Localization and delocalization of free volume and stress field during structural relaxation of metallic glasses. (2009)

Fang, J., Hahn, H., Gleiter, H.

Frühjahrstagung DPG, Fachverband Metall- und Materialphysik, Dresden, 22.-27.März 2009

Enthalpy relaxation study of Zr45.0Cu393Al7Ag8.7 bulk metalic glass and quantification of its free volume by free-volume theory. (2009)

Zhang, Y., Hahn, H., Gleiter, H.

Frühjahrstagung DPG, Fachverband Metall- und Materialphysik, Dresden, 22.-27.März 2009

Mechanical properties of nanocrystalline palladium prepared by magnetron sputtering. (2009)

Castrup, A., Scherer, T., Ivanisenko, Y., Hahn, H., Choi, I.S., Kraft, O.

Frühjahrstagung DPG, Fachverband Metall- und Materialphysik, Dresden, 22.- 27.März 2009

Microstructural aspects of the deformation of ZrO§2 (3mol%Y§2O§3) - 20 wt.% Al§2O§3 composite in uniaxial compression and bending. (2009)

Suffner, J., Lattemann, M., Hahn, H., Weiler, L.

10th Internat.Conf.on Superplasticity in Advanced Materials (ICSAM 2009), Seattle, Wash., June 29 - July 2, 2009

Appropriate choice of the channel ratio in thin-film transistors for the exact evaluation of field-effect mobility. (2009)

Okamura, K., Nikolova, D., Mechau, N., Hahn, H.

European Materials Research Society Spring Meeting, Strasbourg, F, June 8-12, 2009

Appropriate choice of channel ratio in thin-film transistors for the exact determination of field-effect mobility. (2009)

Okamura, K., Nikolova, D., Mechau, N., Hahn, H.

Applied Physics Letters, 94(2009) S.183503/1-3

Percolating SnO§2 nanowire network as a stable gas sensor: direct comparison of long-term performance versus SnO§2 nanoparticle films. (2009)

Sysoev, V.V., Schneider, T., Goschnick, J., Kiselev, I., Habicht, W., Hahn, H., ...

Sensors and Actuators B, 139(2009) S.699-703

Influence of stabilizers in ZnO nanodispersions on field-effect transistor device performance. (2009)

Bubel, S., Nikolova, D., Mechau, N., Hahn, H.

Journal of Applied Physics, 105(2009) S.064514/1-4

Influence of stabilizer in ZnO nano-dispersions on the performance of solution processed nanoparticulate ZnO FETs. (2009)

Mechau, N., Bubel, S., Niklova, D., Hahn, H.

European Materials Research Society Spring Meeting, Strasbourg, F, May 26-30, 2008

Photoelectric characterization of ZnO nanoparticles transistor assembled by dielectrophoresis. (2009)

Yan, W., Krupke, R., Mechau, N., Hahn, H., Hou, X.

European Materials Research Society Spring Meeting, Strasbourg, F, May 26-30, 2008

Chemical vapour synthesis of zirconia nanoparticles doped with yttria and alumina and their densification behaviour. (2009)

Suffner, J., Hahn, H.

Euromat 2009 : European Congress and Exhibition on Advanced Materials and Processes, Glasgow, GB, September 7-10, 2009

Oriented attachment, mesocrystals and mesoscale transformations within a surfactantless-electrodeposition. (2009)

Fang, J., Ghafari, M., Hahn, H.

ChinaNANO 2009 : Internat.Conf.on Nanoscience and Technology, Beijing, China, September 1-3, 2009

Thermal coupling of a high temperature PEM fuel cell with a complex hydride tank. (2009)

Pfeifer, P., Wall, C., Jensen, O., Hahn, H., Fichtner, M.

International Journal of Hydrogen Energy, 34(2009) S.3457-66

Synthesis and characterization of nanoparticulate films for intermediate temperature solid oxide fuel cells. (2009)

Darbandi, A.J., Enz, T., Hahn, H.

Solid State Ionics, 180(2009) S.424-30

Electrochemically-gated field-effect transistor with indium tin oxide nanoparticles as active layer. (2009)

Dasgupta, S., Dehm, S., Kruk, R., Hahn, H.

Breaking Frontiers: Submicron Structures in Physics and Biology : 42nd Zakopane School of Physics, Zakopane, PL, May 19-24, 2008

Electrochemically-gated field-effect transistor with indium tin oxide nanoparticles as active layer. (2009)

Dasgupta, S., Dehm, S., Kruk, R., Hahn, H.

Acta Physica Polonica A, 115(2009) S.473-76

Silver nanowires growth via branch fragmentation of electrochemically grown silver dendrites. (2009)

Fang, J., Hahn, H., Krupke, R., Schramm, F., Scherer, T., Ding, B., ...

Chemical Communications, 9(2009) S.1130-32

Spark plasma sintering of self-propagating high-temperature synthesized TiC§0§.§7/TiB§2 powders and detailed characterization of dense product. (2009)

Musa, C., Locci, A.M., Licheri, R., Orru, R., Cao, G., Vallauri, D., ...

Ceramics International, 35(2009) S.2587-99

Influence of liquid nitrogen quenching on the evolution of metastable phases during plasma spraying of (ZrO§2-5 wt.%Y§2O§3)-20 wt.% Al§2O§3 coatings. (2009)

Suffner, J., Hahn, H., Dosta, S., Cano, I.G., Guilemany, J.M.

Surface and Coatings Technology, 204(2009) S.149-56

The transformation behaviour of bulk nanostructured NiTi alloys. (2009)

Neves, F., Braz Fernandes, F.M., Martins, I., Correia, J.B., Oliveira, M., Gaffet, E., ...

Smart Materials and Structures, 18(2009) S.115003/1-9

Influence of stabilizers in ZnO nanodispersions on the solution processed FET device performance. (2009)

Mechau, N., Bubel, S., Hahn, H.

European Coating Symp.(ECS09), Karlsruhe, September 6-9, 2009

Magnetism of disordered nanomaterials. (2009)

Ghafari, M., Mishra, A., Brand, R., Hahn, H.

11th Internat.Conf.on Advanced Materials (ICAM 2009), Rio de Janeiro, BR, September 20-25, 2009

Nanoparticulate cathode thin films with high electrochemical activity for low temperature SOFC applications. (2009)

Darbandi, A.J., Hahn, H.

Solid State Ionics, 180(2009) S.1379-87

Artificial pinning centers on the MgB§2 surface: the influence on the vortex flow in magnetic field. (2009)

Surdu, A., Koch, Th., Zdravkov, V., Socrovischiuc, A., Prepelitsa, A., Obermaier, G., ...

Proc.of the 6th Internat.Conf.on Microelectronics and Computer Science, Kishinev, MD, October 1-3, 2009

Third ventricle enlargement correlates to different patterns of regional fiber integrity in the corpus callosum of relapsing-remitting and secondary progressive multiple sclerosis patients (2009)

Bellenberg, B., Schimrigk, S., Brück, K., Tönnes, C., Chan, A., Klein, J., ...

1. Introduction Activities of the Experiment Control System (ECOS) Group (2008)

D. Beck, H. Br, H. Hahn, U. Thiemer

A major activity in previous years has been the development

A CORDIC ARGUMENT REDUCTION METHOD WITH REGULAR ARCHITECTURE AND UNLIMITED CONVERGENCE Abstract DOMAIN (2008)

H. Hahn, D. Timmermann, B. J. Hosticka, B. Rix

One of the main problems of the CORDIC algorithm is the limited convergence domain, in which the functions can be calculated. Two different approaches can be employed to overcome this constraint:...

Interactions between non-screw lattice dislocations and coherent twin boundaries in face-centered cubic metals (2008)

Gumbsch, P., Albe, K., Mae, E., Luf, K., Gleiter, H., ...

In a first report [Jin ZH, Gumbsch P, Ma E, Albe K, Lu K, Hahn H, et al. Scripta Mater 2006;54:1163], interactions between screw dislocation and coherent twin boundary (CTB) were studied via...

Nanodraht-Arrays aus Kupfer durch selbstorganisierte galvanische Abscheidung. (2008)

Zhong, S., Koch, T., Walheim, S., Nold, E., Scherer, T., Hahn, H., ...

Nanotechnik, No.1 Februar 2008

Studies of the ion irradiation effects in bulk nanocrystalline TiNi. (2008)

Klimametov, A.R., Balogh, A., Hahn, H., Valiev, R.

137th Annual Meeting and Exhibition of the Minerals, Metals and Materials Society (TMS 2008), New Orleans, La., March 9-13, 2008

Magnetic properties and exchange bias effects in nanocluster assembled films of equiatomic Fe-X (X=Pd, Pt, and Au) synthesized by inert gas phase condensation. (2008)

Bansal, C., Mishra, A.K., Hahn, H.

72.Jahrestagung der Deutschen Physikalischen Gesellschaft und DPG Frühjahrstagung des Arbeitskreises Festkörperphysik, Fachverband Dünne Schichten, Berlin, 25.-29.Februar 2008

Charge transport in nanoparticle zinc oxide layers. (2008)

Bubel, S., Nikolova, D., Okamura, K., Mechau, N., Schmechel, R., Hahn, H.

72.Jahrestagung der Deutschen Physikalischen Gesellschaft und DPG Frühjahrstagung des Arbeitskreises Festkörperphysik, Fachverband Dünne Schichten, Berlin, 25.-29.Februar 2008

Atomic layer deposition and characterization of BiFeO§3 thin films. (2008)

Leufke, P., Ellrich, J., Hahn, H.

72.Jahrestagung der Deutschen Physikalischen Gesellschaft und DPG Frühjahrstagung des Arbeitskreises Festkörperphysik, Fachverband Magnetismus, Berlin, 25.-29.Februar 2008

Electrochemically induced surface charge effect on the properties of nanoporous Au-Fe alloys. (2008)

Mishra, A.K., Bansal, C., Hahn, H.

72.Jahrestagung der Deutschen Physikalischen Gesellschaft und DPG Frühjahrstagung des Arbeitskreises Festkörperphysik, Fachverband Metall- und Materialphysik, Berlin, 25.-29.Februar 2008

Charge induced ITO transistor for printable electronics. (2008)

Dasgupta, S., Gottschalk, S., Kruk, R., Hahn, H.

72.Jahrestagung der Deutschen Physikalischen Gesellschaft und DPG Frühjahrstagung des Arbeitskreises Festkörperphysik, Fachverband Metall- und Materialphysik, Berlin, 25.-29.Februar 2008

Pd§8§1Si§1§9-metallic nanoglasses with enhanced excess volume. (2008)

Zhang, Y., Hahn, H., Gleiter, H.

72.Jahrestagung der Deutschen Physikalischen Gesellschaft und DPG Frühjahrstagung des Arbeitskreises Festkörperphysik, Fachverband Metall- und Materialphysik, Berlin, 25.-29.Februar 2008

Tensile tests of magnetron sputtered nanocrystalline palladium. (2008)

Castrup, A., Gottschalk, S., Hahn, H., Baumbusch, R., Gruber, P., Kraft, O.

72.Jahrestagung der Deutschen Physikalischen Gesellschaft und DPG Frühjahrstagung des Arbeitskreises Festkörperphysik, Fachverband Metall- und Materialphysik, Berlin, 25.-29.Februar 2008

Mechanical properties of nanocrystalline palladium and palladium zirconium alloys prepared by magnetron sputtering. (2008)

Castrup, A., Scherer, T., Hahn, H., Schwaiger, R., Kraft, O.

Materials Science and Engineering (MSE) : Congress and Exhibition on Advanced Materials and Processes, Nürnberg,September 1-4, 2008

Electrochemically-gated field-effect transistor with indium tin oxide nanoparticles as active layer. (2008)

Dasgupta, S., Gottschalk, S., Kruk, R., Hahn, H.

9th Internat.Conf.on Nanostructured Materials (NANO 2008), Rio de Janeiro, BR, June 1-6, 2008

Microstructure and plasticity of 3Y-PSZ - 20 wt % Al§2O§3 composites obtained by spark plasma sintering of metastable powders. (2008)

Suffner, J., Hahn, H., Musa, C., Locci, A.M., Orru, R., Cao, G., ...

9th Internat.Conf.on Nanostructured Materials (NANO 2008), Rio de Janeiro, BR, June 1-6, 2008

Synthesis and characterization of nanocomposite LSCF-GDC thin film for low temperature micro-SOFC applications. (2008)

Darbandi, A.J., Hahn, H.

9th Internat.Conf.on Nanostructured Materials (NANO 2008), Rio de Janeiro, BR, June 1-6, 2008

Towards biomimetic solar cells. (2008)

Marek, P., Sieger, H., Scherer, T., Huijser, A., Savenije, T., Siebbeles, L.D.A., ...

FRONTIERS Research Meeting, Heraklion, GR, June 23-26, 2008

Superconducting magnesium diboriede films with introduced artificial pinning centers. (2008)

Koch, T., Zdravkov, V., Obermaier, G., Sudru, A., Frommen, C., Hahn, H., ...

1st Internat.Conf.from Nanoparticles and Nanomaterials to Nanodevices and Nanosystems (IC4N 2008), Neos Marmaras, GR, June 16-18, 2008

Interactions between nonscrew lattice dislocations and coherent twin boundaries in face-centered cubic metals. (2008)

Jin, Z.H., Gumbsch, P., Albe, K., Ma, E., Lu, K., Gleiter, H., ...

Acta Materialia, 56(2008) S.1126-35

Surface charge induced variation in the electrical conductivity of nanoporous gold. (2008)

Mishra, A.K., Bansal, C., Hahn, H.

Journal of Applied Physics, 103(2008) S.094308/1-5

Effect of the channel roughness on the performance of nanoparticulate zinc oxide field-effect transistors. (2008)

Okamura, K., Mechau, N., Nikolova, D., Hahn, H.

Materials Science and Engineering : Internat.Congress and Exhibition on Advanced Materials and Processes, Nürnberg, September 1-4, 2008

A comparative study of the sensitivity and long-term stability of SnO§2 nanoparticle-based layers versus mats of percolating mesowires. (2008)

Sysoev, V., Schneider, T., Goschnick, J., Stengel, G., Habicht, W., Shankar, R., ...

12th Internat.Meeting on Chemical Sensors, Columbus, Ohio, July 13-16, 2008

Superconducting MgB§2 films for technical applications. (2008)

Koch, T., Sidorenko, A., Zdravkov, V., Surdu, A., Shimmel, Th., Hahn, H.

25th Internat.Conf.on Low Temperature Physics (LT25), Amsterdam, August 6-13, 2008

Nanocomposite formation through thermal decomposition of mixed samarium and magnesium citrate-derived gels formed by spray pyrolysis. (2008)

Enz, T., Sieger, H., Fasel, C., Hahn, H.

Journal of the American Ceramic Society, 91(2008) S.3066-73

Enhanced ion irradiation resistance of bulk nanocrystalline TiNi alloy. (2008)

Kilmametov, A.R., Gunderov, D.V., Valiev, R.Z., Balogh, A.G., Hahn, H.

Scripta Materialia, 59(2008) S.1027-30

Influence of interface roughness on the performance of nanoparticulate zinc oxide field-effect transistors. (2008)

Okamura, K., Mechau, N., Nikolova, D., Hahn, H.

Applied Physics Letters, 93(2008) S.083105/1-3

Hyperfine field in amorphous Fe-co alloys. (2008)

Ghafari, M., Hahn, H.

11th Latin American Conf.on the Applications of the Mössbauer Effect (LACAME 2008), La Plata, RA, November 9-14, 2008

A nanoparticulate indium tin oxide field-effect transistor with solid electrolyte gating. (2008)

Dasgupta, S., Gottschalk, S., Kruk, R., Hahn, H.

Nanotechnology, 19(2008) S.435203/1-6

Single crystal growth via a grain rotation mechanism within amorphous matrix. (2008)

Fang, J.X., Kong, P., Ding, B.J., Song, X.P., Han, Y., Hahn, H., ...

Applied Physics Letters, 93(2008) S.153115/1-3

Element, Verfahren zu seiner Herstellung und seine Verwendung. (2008)

Ellrich, J., Hahn, H., Yong, L.

Vorrichtung mit einer Vielzahl von auf der isolierenden Oberfläche eines Substrats aufgebrachten Elektrodenpaaren. Verfahren zu ihrer Herstellung und ihre Verwendung. (2008)

Blatt, S., Hahn, H., Krupke, R., Oron-Carl, M., Vijayaraghavan, A.

Electric field induced reversible tuning of resistance of thin gold films. (2008)

Dasgupta, S., Kruk, R., Ebke, D., Hütten, A., Bansal, C., Hahn, H.

Journal of Applied Physics, 104(2008) S.103707/1-5

Oxygen vacancy kinetics in ferroelectric PbZr§0§.§4Ti§0§.§6O§3. (2008)

Gottschalk, S., Hahn, H., Flege, S., Balogh, A.G.

Journal of Applied Physics, 104(2008) S.114106/1-7

Effect of the interface roughness on the performance of nanoparticulate zinc oxide field-effect transistors. (2008)

Okamura, K., Mechau, N., Nikolova, D., Hahn, H.

2nd Internat.Workshop on Semiconducting Nanoparticles for Photovoltaics and Optoelectronics, Duisburg, December 10-12, 2008

Nonlinear Control Of A Single Axis Servopneumatic Test Facility With Redundant Actuators (2007)

W. Klier, H. Hahn

this paper nonlinear control algorithms of a single axis test facility with redundant actuators will be derived, based on exact linearization techniques. This controller provides apart from a...

The innovation potential of bulk nanostructured materials (2007)

Valiev, R.Z., Zehetbauer, M.J., Estrin, Y., Höppel, H-W., Ivanisenko, Y., Hahn, H., ...

The innovation potential is high for bulk nanostructured materials (BNM) produced by methods of severe plastic deformation and accordingly this report focuses on very recent developments...

Further investigations on the avoidance of boron-oxygen related degradation by means of regeneration (2007)

Herguth, A., Schubert, G., Kaes, M., Hahn, H.

Ultra-large scale directed assembly of single-walled carbon nanotube devices. (2007)

Vijayaraghavan, A., Blatt, S., Weissenberger, D., Oron-Carl, M., Hennrich, C., Gerthsen, D., ...

2nd IAM Forum for Young Scientists and ICYS Workshop 2007, Tsukuba, J, February 19-22, 2007

High-energy ball milling of Al§2O§3-TiO§2 powders. (2007)

Coste, S., Bertrand, G., Coddet, C., Gaffet, E., Hahn, H., Sieger, H.

Journal of Alloys and Compounds, 434-435(2007) S.489-92

Electronically tunable conductivity of a nanoporous Au-Fe alloy. (2007)

Bansal, C., Sarkar, S., Mishra, A.K., Abraham, T., Lemier, C., Hahn, H.

Scripta Materialia, 56(2007) S.705-08

The role of immiscible additives on the evolution of microstructure and morphology of metal oxides. (2007)

Enz, T., Sieger, H., Theissmann, R., Fasel, C., Hahn, H.

MRS Spring Meeting, San Francisco, Calif., April 9-13, 2007

Mikrostruktur und mechanische Eigenschaften von freistehenden metastabilen ZrO§2 - Al§2O§3 Materialien durch Plasmaspritzen. (2007)

Suffner, J., Sieger, H., Rösner, H., Hahn, H., Dosta, S., Cano, I.G., ...

DGM-Tag, Karlsruhe, 20.-22.Juni 2007

Nanopowder of Sr-doped lanthanum manganite via spray pyrolysis for SOFC applications. (2007)

Darbandi, A.J., Sieger, H., Hahn, H.

DGM-Tag, Karlsruhe, 20.-22.Juni 2007

Sinterverhalten mehrphasiger Sm§2O§3-MgO Komposite auf Basis metallorganischer Precursoren. (2007)

Enz, T., Sieger, H., Theissmann, R., Fasel, C., Hahn, H.

DGM-Tag, Karlsruhe, 20.-22.Juni 2007

Hyperfine field in disordered Fe/Co multilayers. (2007)

Ghafari, M., Kruk, R., Hahn, H.

14th Internat.Conf.on Hyperfine Interactions, Foz de Iguacu, BR, August 6-10, 2007

Nanoscale materials for hydrogen storage. (2007)

Fichtner, M., Frommen, C., Leon, A., Lohstroh, W., Hahn, H.

European Materials Research Society Fall Meeting 2007, Warszawa, PL, September 17-20, 2007

Ultra-large-scale directed assembly of single-walled carbon nanotube devices. (2007)

Vijayaraghavan, A., Blatt, S., Weissenberger, D., Oron-Carl, M., Hennrich, F., Gerthsen, D., ...

Nano Letters, 7(2007) S.1556-60

Above room temperature spin transition in a metallo-supramolecular coordination oligomer/polymer. (2007)

Rajadurai, C., Fuhr, O., Kruk, R., Ghafari, M., Hahn, H., Ruben, M.

Chemical Communications, (2007) S.2636-38

Half-metallic {Co§2MnSi/Co§2FeSi} multilayered Heusler electrodes in magnetic tunnel junctions. (2007)

Castrup, A., Dasgupta, S., Scherer, T., Rösner, H., Ellrich, J., Kruk, R., ...

Internat.Conf.on Magnetism (ICM 2006), Kyoto, J, August 20-25, 2006

Half-metallic {Co§2MnSi/Co§2FeSi} multilayered Heusler electrodes in magnetic tunnel junctions. (2007)

Castrup, A., Dasgupta, S., Scherer, T., Rösner, H., Ellrich, J., Kruk, R., ...

Journal of Magnetism and Magnetic Materials, 310(2007) S.2009-11

Magnetic properties of amorphous/crystalline multilayers. (2007)

Ghafari, M., Kruk, R., Scherer, T., Hahn, H., Kirsch, K., Mattheis, R.

3rd Seeheim Conf.on Magnetism (SCM 2007), Frankfurt, August 26-30, 2007

Magnetism in Fe-Pt nanostructures. (2007)

Ellrich, J., Kruk, R., Ghafari, M., Hahn, H.

3rd Seeheim Conf.on Magnetism (SCM 2007), Frankfurt, August 26-30, 2007

Inverse Hall Petch effect and grain boundary sliding controlled flow in nanocrystalline materials. (2007)

Padmanabhan, K.A., Dinda, G.P., Hahn, H., Gleiter, H.

Materials Science and Engineering A, 452-453(2007) S.462-68

Perfekt oder Defekt - was ist besser für Materialien? (2007)

Hahn, H.

Vortr.: Technische Universität Darmstadt, 12.Juli 2007

Electrochemical charging effects on the magnetic properties of a nanoporous AuFe alloy. (2007)

Mishra, A.K., Bansal, C., Lemier, C., Ghafari, M., Hahn, H.

3rd Seeheim Conf.on Magnetism (SCM 2007), Frankfurt, August 26-30, 2007

AFM nanostructured devices - production and properties. (2007)

Koch, Th., Gehm, N., Xie, F.Q., Zhong, S., Mechau, N., Hahn, H., ...

Nanoscale Phenomena : Fundamentals and Applications, Kishinev, MD, September 20-22, 2007

Self organized metal mesowire growth with electrochemical deposition. (eingeladen) (2007)

Koch, Th., Zhong, S., Rösner, H., Scherer, T., Nold, E., Hahn, H., ...

Nanoscale Phenomena : Fundamentals and Applications, Kishinev, MD, September 20-22, 2007

The innovation potential of bulk nanostructured materials. (2007)

Valiev, R.Z., Zehetbauer, M.J., Estrin, Y., Höppel, H.W., Ivanisenko, Y., Hahn, H., ...

Advanced Engineering Materials, 9(2007) S.527-33

Mössbauer study of Fe-Co-B/Fe multilayers. (2007)

Ghafari, M., Kruk, R., Scherer, T., Hahn, H., Kirsch, K.

Internat.Conf.on the Applications of the Mössbauer Effect, JKanpur, IND, October 14-19, 2007

Self-assembled chromophores within mesoporous nanocrystalline TiO§2: towards biomimetic solar cells. (2007)

Marek, P., Sieger, H., Scherer, T., Huijser, A., Savenije, T., Siebbeles, L.D.A., ...

Internat.Karlsruhe Nanoscience Workshop 'Metal-rich Compounds', Karlsruhe, October 8-10, 2007

Photosensitization of TiO§2 and SnO§2 by artificial self-assembling mimics of the natural chlorosomal bacteriochlorophylls . (2007)

Huijser, A., Marek, P.L., Savenije, T.J., Siebbeles, L.D.A., Scherer, T., Hauschild, R., ...

Journal of Physical Chemistry C, 111(2007) S.11726-33

Diborane release from LiBH§4/Silica-Gel mixtures and the effect of additives. (2007)

Kostka, J., Lohstroh, W., Fichtner, M., Hahn, H.

Journal of Physical Chemistry C, 111(2007) S.14026-29

In-situ coating of silica nanoparticles with acrylate-based polymers. (2007)

Suffner, J., Schechner, G., Sieger, H., Hahn, H.

Chemical Vapor Deposition, 13(2007) S.459-64

Vapor phase synthesis of fluorine-doped SnO§2 nanoparticles. (2007)

Suffner, J., Kling, J., Hahn, H.

Processing and Application of Ceramics : 7th Students Meeting, Novi Sad, SRB, December 6-8, 2007

Synthesis and characterization of LSM nanopowder. (2007)

Darbandi, A.J., Sieger, H., Hahn, H.

Processing and Application of Ceramics : 7th Students Meeting, Novi Sad, SRB, December 6-8, 2007

Verfahren zur Herstellung von nanostrukturierten metastabilen Oxidpulvern durch Spray-Pyrolyse kolloidaler Mischungen. (2007)

Hahn, H., Provenzano, V., Sieger, H.

The interaction mechanism of screw dislocations with coherent twin boundaries in different face-centred cubic metals (2006)

Gumbsch, P., Ma, E., Albe, K., Lu, K., Hahn, H., ...

It is well established that the mechanical properties of polycrystalline metals depend on the interaction between lattice dislocations and grain boundaries [13 ], but many details of this interaction...

Absence of ferromagnetic behavior in bulk polycrystalline Zn0.9Co0.1O (2006)

S. Yin, M.X. Xu, L. Yang, J.F. Liu, H. Rosner, ...

Journal article

Synthesis and local structure of doped nanocrystalline zinc oxides (2006)

J.U. Brehm, M. Winterer, H. Hahn

Journal article

Structure and Magnetic Properties of Iron Nanoparticles Stabilized in Carbon (2006)

Th. Enz, M. Winterer, B. Stahl, S. Bhattacharya, G. Miehe, ...

Journal article

The interaction mechanism of screw dislocations with coherent twin boundaries in different face-centred cubic metals. (2006)

Jin, Z.H., Gumbsch, P., Ma, E., Albe, K., Lu, K., Hahn, H., ...

Scripta Materialia, 54(2006) S.1163-68

Interfacial microstructure of Fe/AlO§x/Fe-magnetic tunnel junctions in high resolution. (2006)

Schmitt, H., Ellrich, J., Hahn, H.

DPG Spring Meeting of the Divison Condensed Matter, 21st General Conf.of the Condensed Matter Division of the European Physical Society, Dresden, March 26-31, 2006

Direct growth of mesoscopic copper wires by electrodeposition. (2006)

Zhong, S., Koch, T., Rösner, H., Hahn, H., Nold, E., Scherer, T., ...

DPG Spring Meeting of the Divison Condensed Matter, 21st General Conf.of the Condensed Matter Division of the European Physical Society, Dresden, March 26-31, 2006

Electrochemically fabricated nanoscale copper wires: investigation of wire morphology and composition. (2006)

Koch, T., Zhong, S., Nold, E., Scherer, T., Rösner, H., Hahn, H., ...

DPG Spring Meeting of the Divison Condensed Matter, 21st General Conf.of the Condensed Matter Division of the European Physical Society, Dresden, March 26-31, 2006

Self-organized electrochemical assembly of mesoscale silver wires and dendrites. (2006)

Zhong, S., Koch, T., Rösner, H., Hahn, H., Nold, E., Wang, D., ...

DPG Spring Meeting of the Divison Condensed Matter, 21st General Conf.of the Condensed Matter Division of the European Physical Society, Dresden, March 26-31, 2006

Investigation of structure and stability of electrochemically produced mesoscale silver wires and dendrites. (2006)

Koch, T., Zhong, S., Rösner, H., Hahn, H., Nold, E., Wang, D., ...

DPG Spring Meeting of the Divison Condensed Matter, 21st General Conf.of the Condensed Matter Division of the European Physical Society, Dresden, March 26-31, 2006

Structure and magnetic properties of iron nanoparticles stabilized in carbon. (2006)

Enz, T., Winterer, M., Stahl, B., Bhattacharya, S., Miehe, G., Foster, K., ...

Journal of Applied Physics, 99(2006) S.044306/1-8

Interfacial microstructure of Fe/AlO§x/Fe magnetic tunnel junctions in high resolution. (2006)

Schmitt, H., Ghafari, M., Kruk, R., Ellrich, J., Hütten, A., Schmitt, L.A., ...

Applied Physics Letters, 88(2006) S.122505 /1-3

Self-assemled chromophores within mesoporous nanocrystalline TiO§2. (2006)

Marek, P., Scherer, T., Sieger, H., Balaban, T.S., Hahn, H.

8th Internat.Conf.on Nanostructured Materials (NANO-2006), Bangalore, IND, August 20-25, 2006

Grain-size-dependent magnetic properties of nanocrystalline Gd. (2006)

Kruk, R., Ghafari, M., Hahn, H., Michels, D., Birringer, R., Krill, C.E., ...

Physical Review B, 73(2006) S.054420/1-6

Thermal Stability of Nanocrystalline Sm§2O§3 and Sm§2O§3-MgO. (2006)

Sieger, H., Suffner, J., Hahn, H., Raju, A.R., Miehe, G.

Journal of the American Ceramic Society, 89(2006) S.979-84

Synthesis, characterization and sintering of nanocrystalline titania powders produced by chemical vapour synthesis. (2006)

Akurati, K.K., Bhattacharya, S.S., Winterer, M., Hahn, H.

Journal of Physics D, 39(2006) S.2248-54

Absence of ferromagnetism in bulk polycrystalline Zn§0§.§9Co§0§.§1O. (2006)

Yin, S., Xu, M.X., Yang, L., Liu, J.F., Rösner, H., Hahn, H., ...

Physical Review B, 73(2006) S.224408/1-5

Mechanism-dependent detection properties of layers based on tin oxide nanoparticles prepared by chemical vapor synthesis (CVS). (2006)

Goschnick, J., Hahn, H., Schneider, T., Shankar, R.

11th Internat.Meeting on Chemical Sensors (IMCS-11), Brescia, I, July 16-19, 2006 (Poster)

Self-assembly of single-crystalline silver mesowires by electrochemical deposition. (2006)

Koch, Th., Zhong, S., Rösner, H., Hahn, H., Nold, E., Wang, D., ...

Internat.Conf.on Nanoscience and Technology (ICN+T), Basel, CH, July 30 - August 4, 2006

Direct growth of single-crystalline copper mesowires by electrodeposition. (2006)

Koch, Th., Zhong, S., Scherer, T., Rösner, H., Walheim, S., Hahn, H., ...

Internat.Conf.on Nanoscience and Technology (ICN+T), Basel, CH, July 30 - August 4, 2006

Synthesis and local structure of doped nanocrystalline zinc oxides. (2006)

Brehm, J.U., Winterer, M., Hahn, H.

Journal of Applied Physics, 100(2006) S.063411/1-9

Thermal boundary resistance of a granular film-substrate interface. (2006)

Nikolaenko, Y.M., Medvedev, Y.V., Ghafari, M., Hahn, H., Chukanova, I.N.

Technical Physics Letters, 32(2006) S.904-07

Electronic and magnetic properties of ligand-free FePt nanoparticles (2005)

Fauth,K., Stahl,B., Ziemann,P., Kästle,G., Weigl,F., ...

Nur vom Feinsten: Nanokristalline Keramik. (2005)

Hahn, H., Sieger, H., Winterer, M.

2000F POWER WIRE FOR AEROSPACE ENVIRONMENT. (2005)

ZWILSKY,K. M., Fuschillo,N., Hahn,H., Lare,P. J., Pentecost,J. L.

Twenty-two gage and twelve-gage power wires fabricated sing rhodium conductors, magnesium oxide insulation, platinum sheathing, and alumina end seals. The wire systems maintained their electrical...

Electronic and magnetic properties of ligand-free FePt nanoparticles (2005)

Fauth, K., Stahl, B., Ziemann, P., Kästle, G., Weigl, F., ...

Structural and magnetic properties of iron nanoparticles prepared by chemical vapor synthesis. (2005)

Enz, T., Stahl, B., Bhattacharya, S., Winterer, M., Miehe, G., Foster, K., ...

2005 Spring Meeting of the Materials Research Society, San Francisco, Calif., March 28 - April 1, 2005

Electronic and magnetic properties of ligand-free FePt nanoparticles. (2005)

Boyen, H.G., Fauth, K., Stahl, B., Ziemann, P., Kästle, G., Weigl, F., ...

Advanced Materials, 17(2005) S.574-78

Interaction of screw dislocations with coherent twin-boundaries in fcc metals. (2005)

Jin, Z.H., Albe, K., Hahn, H.

Physik seit Albert Einstein : 69.Jahrestagung der DPG, Berlin, 4.-9.März 2005

Nur vom Feinsten: Nanokristalline Keramik. (2005)

Hahn, H., Sieger, H., Winterer, M.

Nachrichten - Forschungszentrum Karlsruhe, 37(2005) S.12-18

The role of interfaces on the magnetic behavior of granular CuFeCo alloys. (2005)

Ghafari, M., Volland, A., Hahn, H.

physica status solidi (a), 202(2005) S.2008-12

Paths to commericialization of nanotechnology. (2005)

Hahn, H.

Commercialization of Micro and Nano Systems (COMS 2005) : 10th Internat.Conf., Baden-Baden, August 21-25, 2005

Transparent nanocrystalline ZnO films prepared by spin coating. (2005)

Berber, M., Bulto, V., Kliss, R., Hahn, H.

Scripta Materialia, 53(2005) S.547-51

Self-assemled chromophores within mesoporous nanocrystalline TiO§2. (2005)

Marek, P., Scherer, T., Sieger, H., Balaban, T.S., Hahn, H.

Plastic Electronics Internat.Conf.and Showcase, Frankfurt, October 4-5, 2005 (Poster)

Nanostructure enhanced electronic nose microsystem. (2005)

Goschnick, J., Hahn, H., Schneider, T., Shankar, R., Sommer, M., Sysoev, V.

Frontiers Annual Meeting, Karlsruhe, September 19-21, 2005

Nanoporous and nanostructured materials for catalysis, sensor, and gas separation applications. (2005)

Lu, S.W., Hahn, H., Weissmüller, J., Gole, J.L., [Hrsg.]

Proc.of Symp.R of MRS Spring Meeting 2005, San Francisco, Calif., March 28 - April 1, 2005

Micro-indentation creep of porous nanocrystalline metallic and composite compacts. (2005)

Padmanabhan, K.A., Mondai, P., Hahn, H.

Journal of Materials Science, 40(2005) S.6113-20

Direct growth of thin copper wires by electrodeposition. (2005)

Zhong, S., Koch, Th., Nold, E., Scherer, T., Rösner, H., Walheim, S., ...

208th Meeting of the Electrochemical Society, Los Angeles, Calif., October 16-21, 2005

High-pressure behavior of SnO§2 nanocrystals. (2005)

He, Y., Liu, J.F., Chen, W., Wang, Y., Wang, H., Zeng, Y.W., ...

Physical Review B, 72(2005) S.212102/1-4

1D- und 3D-Computersimulationen zur Versuchsplanung und -interpretation bei pharmakokinetischen Studien am Innenohr nach lokaler Medikamentenapplikation (2004)

Plontke, S., Siedow, N., Hahn, H., Wegener, R., Salt, A.N.

The local delivery of drugs to the cochlea is a promising alternative to systemic treatment of inner ear disorders. Whilst new drugs are being developed for this purpose, it is important to determine...

Structural and magnetic properties of Al doped Co-Ag granular films: temperature dependence of magnetoresistance (2004)

Öksüzoglu, R. M., Elmali, A., Henn, R., Fuess, H., Hahn, H.

Electronic and magnetic properties of ligand-free FePt nanoparticles. (2004)

Boyen, H.G., Fauth, K., Stahl, B., Ziemann, P., Kästle, G., Weigl, F., ...

Frühjahrstagung des Arbeitskreises Festkörperphysik (AKF) der DPG, Fachverband Magnetismus, Regensburg, 8.-12.März 2004

3 nm amorphe Fe-Teilchen mit Graphithülle. (2004)

Enz, T., Stahl, B., Winterer, M., Bhattacharya, S., Hahn, H.

Frühjahrstagung des Arbeitskreises Festkörperphysik (AKF) der DPG, Fachverband Magnetismus, Regensburg, 8.-12.März 2004

Grenzflächeneigenschaften von Fe-Al2O3-TMR-Strukturen. (2004)

Schmitt, H., Stahl, B., Schmitt, L., Brötz, J., Ghafari, M., Hahn, H.

Frühjahrstagung des Arbeitskreises Festkörperphysik (AKF) der DPG, Fachverband Magnetismus, Regensburg, 8.-12.März 2004 (Poster)

Oberflächeneffekte und magnetische Nahordnung in FePt Nanoteilchen. (2004)

Ellrich, J., Stahl, B., Miehe, G., Hahn, H.

Frühjahrstagung des Arbeitskreises Festkörperphysik (AKF) der DPG, Fachverband Magnetismus, Regensburg, 8.-12.März 2004 (Poster)

Critical phenomena near the surface of antiferromagnetic single crystals and thin films studied by depth selective CEMS . (2003)

Bhattacharya, S., Stahl, B., Ghafari, M., Hahn, H.

Frühjahrstagung des Arbeitskreises Festkörperphysik (AKF) der DPG, Fachverband Dynamik und Statistische Physik (DY), Dresden, 24.-28. März 2003

Structural and Magnetic Properties of Fe Nanoparticles in a C matrix. (2003)

Bhattacharya, S., Winterer, M., Stahl, B., Enz, T., Ghafari, M., Hahn, H.

Frühjahrstagung des Arbeitskreises Festkörperphysik (AKF) der DPG, Fachverband Magnetismus (MA), Dresden, 24.-28. März 2003

Magnetische Anisotropie in FePt Nanoteilchen. (2003)

Ellrich, J., Stahl, B., Hahn, H.

Frühjahrstagung des Arbeitskreises Festkörperphysik (AKF) der DPG, Fachverband Magnetismus (MA), Dresden, 24.-28. März 2003

Oberflächeneigenschaften von Eisenfilmen. (2003)

Schmitt, H., Stahl, B., Theissmann, R., Ghafari, M., Hahn, H.

Frühjahrstagung des Arbeitskreises Festkörperphysik (AKF) der DPG, Fachverband Magnetismus (MA), Dresden, 24.-28. März 2003

Magnetische Nanopartikel und ihre Relevanz in der Bio-Magnetrezeption. (2003)

Stahl, B., Fleissner, G., Finck, R., Ellrich, J., Hahn, H.

Frühjahrstagung des Arbeitskreises Festkörperphysik (AKF) der DPG, Fachverband Magnetismus (MA), Dresden, 24.-28. März 2003

Grenzflächeneigenschaften in TMR-Strukturen. (2003)

Schmitt, H., Stahl, B., Theissmann, R., Ghafari, M., Hahn, H.

Frühjahrstagung des Arbeitskreises Festkörperphysik (AKF) der DPG, Fachverband Magnetismus (MA), Dresden, 24.-28. März 2003

Electronic properties of 4-nm FePt particles. (2003)

Stahl, B., Ellrich, J., Theissmann, R., Ghafari, M., Bhattacharya, S., Hahn, H., ...

Physical Review B, 67(2003) S.014422/1-12

Thermodynamic Interactions in Organometallic Block Copolymers: Poly(styrene-block-ferrocenyldimethylsilane) (2002)

Eitouni, H.B., Balsara, N.P., Hahn, H., Pople, J.A., Hempenius, M.A.

Gas Phase Synthesis of Nanostructured Films and Coatings (2002)

Hahn, H., Winterer, M., Seifried, S., Srdic, V. V.

DCEMS-Untersuchungen zu Grenzflächeneigenschaften von Fe-Al§2O§3 Schichtsystemen. (2002)

Schmitt, H., Ellrich, J., Stahl, B., Ebert, J., Ghafari, M., Battacharyal, S., ...

Frühjahrstagung des Arbeitskreises Festkörperphysik (AKF) der DPG, Regensburg, 11.-15.März 2002

Magnetische und strukturelle Eigenschaften von 4 nm FePt Teilchen. (2002)

Ellrich, J., Schmitt, H., Stahl, B., Ebert, J., Hahn, H., Bhattacharyal, S., ...

Frühjahrstagung des Arbeitskreises Festkörperphysik (AKF) der DPG, Regensburg, 11.-15.März 2002

Critical phenomena near the surface of antiferromagnetic single crystals and thin films studied by depth selective CEMS. (2002)

Bhattacharya, S., Stahl, B., Ellrich, J., Ghafari, M., Hahn, H., Schmitt, H., ...

Frühjahrstagung des Arbeitskreises Festkörperphysik (AKF) der DPG, Regensburg, 11.-15.März 2002

Electronic and magnetic properties of monodispersed FePt nanoparticles. (2002)

Stahl, B., Gajbhiye, S., Wilde, G., Kramer, D., Ellrich, J., Ghafari, M., ...

Advanced Materials, 14(2002) S.24-27

Surface magnetism at the Neel temperature of an FeBO§3 single crystal. (2002)

Stahl, B., Bhattacharya, S., Gottschalk, S., Ellrich, J., Schmitt, H., Ebert, J., ...

Physical Review B, 66(2002) S.104426/1-11

Luminescence properties of nanocrystalline Y2O3:Eu3+ in different host materials (2001)

Schmechel, R., Kennedy. M., Von Seggern, H., Winkler, H., Kolbe, M., Fischer, R. A., ...

Photoluminescence Properties of Nanocrystalline Y203: Eu3+ in Differnt Environments (2001)

Schmechel, R., Winkler, H., Xaomao, L., Kennedy, M., Kolbe, M., Benker, A., ...

Viscoelastic properties of aligned block copolymer lamellae (2001)

Hahn, H, Lee, JH, Balsara, NP, Garetz, BA, Watanabe, H

Preparation of a clofazimine nanosuspension for intravenous use and evaluation of its therapeutic efficacy in murine Mycobacterium avium infection (2000)

Peters, K., Leitzke, S., Diederichs, J. E., Borner, K., Hahn, H., Müller, R. H., ...

Clofazimine nanosuspensions were produced by high pressure homogenization and the formulation was optimized for lyophilization. Characterization of the product by photon correlation spectroscopy,...

RESEARCH ON WHISKER-REINFORCED METAL COMPOSITES. (1998)

Lare,P. J., Divecha,A. P., Hahn,H.

Several aluminum-alloy-sapphire-whisker composite systems were investigated. Consolidation by liquid-phase hot pressing developed previously was significantly improved to yield dense composites with...

TRANSPARENT LIGHTWEIGHT ARMOR. (1998)

DeBoskey, W. R., Hahn, H.

Preliminary evaluation of a means of reinforcing glass by high strength sapphire whiskers is reported. Glass having an index of refraction closely matching that of sapphire was hot pressed to...

SILICON CARBIDE WHISKER-METAL MATRIX COMPOSITES. (1998)

Divecha, A., Lare, P., Hahn, H.

Several metals and alloys were examined for reinforcement with alpha SiC whiskers. High-temperature matrices were found to degrade the whiskers significantly. Aluminum-silicon alloys and magnesium...

Sintering Characteristics of Nanocrystalline TiO2. (1998)

Hahn, H., Logas, J., Averback, R. S.

The microstructural development of compacted nanocrystalline TiO2 powder was studied as a function of sintering temperature up to 1000C. Grain growth was monitored using X-ray diffraction and...

Synthesis, Characterization, and Properties of Nanophase TiO2. (1998)

Siegel, R. W., Ramasamy, S., Hahn, H., Li, Zongquan, Lu, Ting

Ultrafine-grained, nanophase samples of TiO2 (rutile) were synthesized by the gas-condensation method and subsequent in situ compaction. The samples were studied by a number of techniques, including...

Sintering Characteristics of Nanocrystalline TiO2-A Study Combining Small Angle Neutron Scattering and Nitrogen Absorption-BET. (1998)

Wagner, W., Averback, R. S., Hahn, H., Petry, W., Wiedenmann, A.

Small angle neutron scattering (SANS) was employed to characterize the pore structure of nanophase TiO2 ceramic materials compacted at different temperatures. Nanophase samples, produced by inert gas...

Sintering and Grain Growth in Nanocrystalline Ceramics. (1998)

Averback, R. S., Hoefler, H. J., Hahn, H., Logas, J. C.

Nanocrystalline ceramics have been produced by inert gas condensation of ultra-small particles and in-situ compaction. Sintering and grain growth characteristics have been investigated by XRD,...

MODIFICATION OF PLASMA FLAME IMPINGEMENT TESTER AND SOME PRELIMINARY TESTS OF FOUR COMPOSITE MATERIALS. (1998)

Hahn, H., Pan, S.

Pages 824-68 only.

Numerical simulations of a two-dimensional lattice grain boundary model (1997)

Jaster, A., Hahn, H.

We present detailed Monte Carlo results for a two-dimensional grain boundary model on a lattice. The effective Hamiltonian of the system results from the microscopic interaction of grains with...

EXAFS of Nanocrystalline Y2O3 (1997)

Winterer, M., Nitsche, R., Hahn, H.

A large volume fraction of atoms in nanocrystalline materials is located in surfaces and interfaces. Atoms facing the particle boundaries have a different local structure than atoms inside the...

EXAFS of Nanocrystalline Y2O3 (1997)

Winterer, M., Nitsche, R., Hahn, H.

A large volume fraction of atoms in nanocrystalline materials is located in surfaces and interfaces. Atoms facing the particle boundaries have a different local structure than atoms inside the...

EXAFS of Nanocrystalline Y2O3 (1997)

Winterer, M., Nitsche, R., Hahn, H.

A large volume fraction of atoms in nanocrystalline materials is located in surfaces and interfaces. Atoms facing the particle boundaries have a different local structure than atoms inside the...

Pion Absorption on $^{3}He$ at Low Energies (1995)

Hahn, H, Altman, A, Ashery, D, Gefen, G, Gill, D R, Johnson, R R, ...

Schaltungsanordnung und Verfahren zur Durchfuehrung des CORDIC-Algorithmus (1995)

Timmermann, D., Hahn, H., Hosticka, B.

A circuit arrangement of the implementation of the CORDIC algorithm for the iterative calculation of the x, y and z values at a data word length of n bits comprises the following: A first device (X)...

A unified and division-free CORDIC argument reduction method with unlimited convergence domain including inverse hyperbolic functions. (1994)

Hahn, H., Timmermann, D., Hosticka, B.J., Rix, B.

One of the main problems of the CORDIC algorithm is the limited convergence domain, in which the functions can be calculated. Two different approaches can be employed to overcome this constraint:...

A CMOS floating-point vector-arithmetic unit (1994)

Timmermann, D., Rix, B., Hahn, H., Hosticka, B.J.

This work describes a floating-point arithmetic unit based on the CORDIC algorithm. The unit computes a full set of high level arithmetic and elementary functions: multiplication, division, (co)sine,...

24 Bit CMOS Gleitkomma Vektorarithmetik Chip (1993)

Hahn, H., Hosticka, B.J., Rix, B., Timmermann, D.

Es wird eine CMOS Realisierung einer Vektorarithmetikeinheit zur Verarbeitung von Zahlen im IEEE-754 Gleitkommaformat (24 Bit Mantisse, 8 Bit Exponent) vorgestellt, der IMSCOR24. Dieser Chip wurde...

A low latency time CORDIC algorithm with increased parallelism (1992)

Hahn, H., Hosticka, B.J., Timmermann, D.

In this contribution we present several methods for increasing the speed of the CORDIC algorithm. First we develop an improved method which guarantees a constant scale factor when employing redundant...

Cordic processor architectures (1992)

Böhme, J.F., Hahn, H., Hosticka, B.J., Timmermann, D.

As CORDIC algorithms receive more and more attention in elementary function evaluation and signal processing applications, the problem of their VLSI realization has attracted considerable interest....

A CORDIC-based floating point arithmetic unit (1992)

Hahn, H., Hosticka, B.J., Rix, B., Timmermann, D.

A floating-point arithmetic unit based on the CORDIC algorithm is described. It computes a wide range of arithmetic, trigonometric, and hyperbolic functions and achieves a normalized peak performance...

Alternative signal processor arithmetic for modified implementation of a normalised adaptive channel equaliser (1992)

Hahn, H., Hosticka, B.J., Timmermann, D.

In adaptive digital signal processing, fast multiplication is one of the most important operations and is implemented as an array multiplier in a standard signal processor. For the realisation of...

Untersuchung und Integration von Berechnungsverfahren elementarer Funktionen auf CORDIC-Basis mit Anwendungen in der adaptiven Signalverarbeitung (1991)

Hahn, H.

Für die Systemintegration rechenintensiver Algorithmen der digitalen Signalverarbeitung werden in Zukunft anstelle von Software-Lösungen sogenannte Hardware-Algorithmen zum Einsatz kommen. Da sich...

A programmable CORDIC chip for digital signal processing applications (1991)

Schmidt, G., Hahn, H., Hosticka, B.J., Timmermann, D.

A chip implementing the COordinate Rotation DIgital Computer (CORDIC) algorithm is described. It contains a 10-MHz 16-b fixed-point CORDIC arithmetic unit, 2-kb RAM, a controller, and I/O registers....

A new addition scheme and fast scaling factor compensation methods for CORDIC algorithms (1991)

Hahn, H., Hosticka, B.J., Rix, B., Timmermann, D.

As CORDIC algorithms attract more and more attention in elementary function evaluation and signal processing applications, the problem of their VLSI realization has drawn considerable interest. In...

A low latency time CORDIC algorithm with increased parallelism (1991)

Hahn, H., Hosticka, B.J., Timmermann, D.

In this contribution we present several methods for increasing the speed of the CORDIC algorithm. First we develop an improved method which guarantees a constant scale factor when employing redundant...

Hardware-Algorithmen und Architekturen für die arithmetikintensive Signalverarbeitung (1991)

Hahn, H., Hosticka, B.J., Rix, B., Timmermann, D.

Diskutiert wird die Möglichkeit, aufwendige arithmetische Berechnungen direkt als Hardware-Algorithmus zu realisieren. Nach einem Vergleich der dazu zur Verfügung stehenden Alternativen zeigt sich...

Ein effizientes Verfahren zur Argumentenreduktion für den CORDIC-Algorithmus (1991)

Hahn, H., Timmermann, D.

Gelelektrophoresen. (1991)

Jany, K.D., Hahn, H., Kahnt, B.

Bertram, S. [Hrsg.]

Eine vollparallele CORDIC Gleitkomma Pipeline Architektur (1990)

Hahn, H., Rix, B., Timmermann, D.

In dem Forschungsvorhaben werden Architekturen für Prozessoren entwickelt, die das CORDIC Verfahren als Hardwarealgorithmus abbilden. Als konsequente Weiterentwicklung des von uns realisierten...

Polyol-dehydrogenases from gluconobacter oxydans: identification, cloning and expression of the NADP-dependent sorbitol dehydrogenase II. (1990)

Hahn, H., Heethoff, M., List, H.J., Gassen, H.G., Jany, K.D.

DECHEMA Biotechnology Conferences 3

Modified CORDIC algorithm with reduced iterations (1989)

Hahn, H., Hosticka, B.J., Timmermann, D.

In this contribution we present a modified CORDIC algorithm that offers a considerable latency time reduction and chip area savings when compared with the original CORDIC method. The operations used...

Integrierte CORDIC-Prozessoren, Architekturen und Hardware (1989)

Hahn, H., Hosticka, B.J., Timmermann, D., Zimmer, G.

Monolithic A/D and D/A converters suffer from the limited accuracy of the available circuit components. A new self-calibration method allows the correction of the linearity errors of binary weighted...

Hough transform using cordic methods (1989)

Hahn, H., Hosticka, B.J., Timmermann, D.

The purpose of the letter is to demonstrate the usefulness of the CORDIC algorithm for implementation of image processing algorithms in dedicated hardware to achieve near real-time processing speed....

Cordic-Prozessoren für die digitale Signalverarbeitung (1989)

Eßer, W., Hahn, H., Hosticka, B.J., Schmidt, G., Timmermann, D.

Die digitale Signalverarbeitung gewinnt unter anderem durch das Angebot an Signalprozessoren, Koprozessoren und anwendungsspezifischen Einchip-Implementierungen in fortschrittlichen...

CORDIC-Algorithmen und Architekturen in der digitalen Signalverarbeitung (1989)

Hahn, H., Rix, B., Timmermann, D.

CMOS-implementation of optimized 16-bit cordic-processors and evaluation tools (1989)

Schmidt, G., Hahn, H., Hosticka, B.J., Timmermann, D., Zimmer, G., Böhme, J.F.

This paper is devoted to recursive CORDIC processors with 16 bit fixed-point arithmetics. After the presentation of unified and specialized CORDIC sequences which result from a parameter optimization...

Polyol dehydrogenases from gluconobacter oxydans: purification and characterization of a cytoplasmic glucose dehydrogenase. (1989)

Hahn, H., Koopmann, J.O., Gassen, H.G., Jany, K.D.

GBCH Herbsttagung, Osnabrueck, 13.-15.September 1989

STRUCTURE AND PROPERTIES OF NANOPHASE TiO2 (1988)

Siegel, R., Hahn, H., Ramasamy, S., Zongquan, L., Ting, L., Gronsky, R.

Ultrafine-grained, nanophase samples of TiO2 (rutile) were synthesized by the gas-condensation method and subsequent in-situ compaction, and then studied by transmission electron microscopy, Vickers...

Design of 16-Bit fixed point recursive CORDIC processors and evaluation tools (1988)

Schmidt, G., Timmermann, D., Hahn, H., Böhme, J.F., Zimmer, G.

The CORDIC algorithm calculates a set of elementary functions which include trigonometric, hyperbolic and their inverse functions as well as multiplications and divisions. We report on the parameter...

STRUCTURE AND PROPERTIES OF NANOPHASE TiO2 (1988)

Siegel, R., Hahn, H., Ramasamy, S., Zongquan, L., Ting, L., Gronsky, R.

Ultrafine-grained, nanophase samples of TiO2 (rutile) were synthesized by the gas-condensation method and subsequent in-situ compaction, and then studied by transmission electron microscopy, Vickers...

STRUCTURE AND PROPERTIES OF NANOPHASE TiO2 (1988)

Siegel, R., Hahn, H., Ramasamy, S., Zongquan, L., Ting, L., Gronsky, R.

Ultrafine-grained, nanophase samples of TiO2 (rutile) were synthesized by the gas-condensation method and subsequent in-situ compaction, and then studied by transmission electron microscopy, Vickers...

Special computers - graphics robotics (1987)

Yang, B., Böhme, J.F., Schmidt, G., Hahn, H., Hosticka, B.J., Timmermann, D., ...

This paper describes a special processor based on the CORDIC algorithm, which can perform a variety of trigonometric, hyperbolic and square-root functions as well as multiplications and divisions....

Parameter optimization of CORDIC-algorithm and implementation in a CMOS-chip (1986)

Schmidt, G., Böhme, J.F., Hahn, H., Hosticka, B.J., Timmermann, D., Zimmer, G.

CORDIC-Coprozessor für schnelle 3D-Grafik (1986)

Böhme, J.F., Schmidt, G., Hahn, H., Hosticka, B.J., Timmermann, D., Zimmer, G.

In diesem Beitrag wird ein auf der Basis des CORDIC Verfahrens arbeitender prozessor vorgestellt, der sich besonders fuer die digitale Signalverarbeitung eignet. Als ein Beispiel fuer die...

Comparative efficacy of different B-lactam antibiotics and gentamicin in Klebsiella pneumoniae septicaemia in neutropenic mice (1986)

Trautmann, M., Bruckner, O., Marre, R., Hahn, H.

The in-vivo activity of ceftazidimk, cefotetan, imipenem/cilastatin, piperacillin and gentamicin against two strains of Klebsiella pneumoniae was evaluated in a model of experimental septicaemia...

Cordic realization of power-wave digital filters (1985)

Büddefeld, J., Hahn, H., Hosticka, B.J., Kleine, U.

Versuchsstand fuer instationaere Zweiphasenstroemungen. (1982)

John, H., Reimann, J., Demski, A., Hahn, H., Megerle, A., Wanner, E., ...

In: Projekt Nukleare Sicherheit. Jahresbericht 1981.

Serielles 5-Strahl-#g-Densitometer zur Dichtemessung einer Zweiphasenstroemung. (1979)

John, H., Reimann, J., Alsmeyer, H., Hahn, H., Megerle, A.

KfK-2783 (November 79)

Gemeinsamer Versuchsstand zum Testen und Kalibrieren verschiedener Zweiphasen-Massenstrommessverfahren. (1977)

Reimann, J., Arnold, G., Chung, M., Hahn, H., John, H., Mueller, St., ...

In: Projekt Nukleare Sicherheit. Halbjahresbericht 1976/2.

Gemeinsamer Versuchsstand zum Testen und Kalibrieren verschiedener Zweiphasen-Massenstrommessverfahren. (1977)

Reimann, J., Demski, A., Hahn, H., Harten, U., John, H., Megerle, A., ...

In: Projekt Nukleare Sicherheit. Halbjahresbericht 1977/1.

Some results of the application of the stabilograph in the orthopaedic clinic. A preliminary report (1976)

Snijder, JGN, Snijders, CJ, Seroo, JM, Hahn, H

On the theory of iris-loaded waveguides. (1976)

Hahn, H., Goldstein, C., Bauer, W.

Archiv fuer Elektronik und Uebertragungstechnik, 30(1976) S. 297-302

Gemeinsamer Versuchstand zum Testen und Kalibrieren verschiedener Zweiphasen-Massenstrommessverfahren. (1976)

Reimann, J., Arnold, G., Hahn, H., John, H., Mueller, St.

In: Projekt Nukleare Sicherheit. Halbjahresbericht 1976/1.

COPF. Ein Satz von Programmbausteinen fuer Realzeit-Betriebssysteme. (1975)

Ehrig, J., Hahn, H., Hotes, H., Ibarra, A., Skrebutis, E.

KFK-PDV-40 (Mai 75)

Theory of #p/2-Mode Biperiodic Deflectors. (1973)

Bauer, W., Hahn, H.

Particle Accelerators, 3(1972) S.193-207

Remarks at the Panel Discussion on Superconducting Linac Development. (1971)

Hahn, H.

1971 Particle Accelerator Conference. Accelerator Engineering and Technology. Chicago, Ill., March 1-3, 1971. IEEE Transactions on Nuclear Science, NS-18(1971) No 3, S.135

The Effects of Electrons on Superconducting Cavities in the GHz Region. (1971)

Dammertz, G., Hahn, H., Halbritter, J., Kneisel, P., Stoltz, O., Votruba, J.

1971 Particle Accelerator Conference. Accelerator Engineering and Technology. Chicago, Ill., March 1-3, 1971. IEEE Transactions on Nuclear Science, NS-18(1971) No.3, S.153-57

Design Study of a Superconducting Deflecting Cavity. (1971)

Bauer, W., Dammertz, G., Eschelbacher, H.C., Hahn, H., Juengst, W., Rathgeber, E., ...

1971 Particle Accelerator Conference. Accelerator Engineering and Technology. Chicago, Ill., March 1-3, 1971. IEEE Transactions on Nuclear Science. NS-18(1971) No 3, S.181-85

HF-Messungen an einem supraleitenden Nb-Deflektor. (1971)

Dammertz, G., Dittmann, R., Hahn, H., Votruba, J.

KFK-Ext.03/71-01

Experimental Investigation of Superconducting Nb Deflecting Cavities. (1971)

Bauer, W., Citron, A., Dammertz, G., Eschelbacher, H.C., Hahn, H., Juengst, W., ...

Blewett, M.H.[Hrsg.]: Proceedings of the 8.Internat. Conference on High-Energy Accelerators, Cern 1971. Geneva, 20-24 September 1971. Geneva: European Org.for Nuclear Research 1971. S.253-57

A Superconducting rf Particle Separator. (1970)

Bauer, W., Dammertz, G., Eschelbacher, H., Hahn, H., Juengst, W., Rathgeber, E., ...

Internat.Conf.on Instrumentation for High Energy Physics, Dubna (USSR), Sept. 8-12, 1970

Die Söhne Albrechts des Bären, Otto I., Sigfried, Bernhard 1170 - 84 [microform] : Ihre Theilnahme an den Reichsangelegenheiten / (1869)

Hahn, H.

"Jahresbericht über die Louisenstädtische Realschule--Berlin, 1869."

pH gating of ROMK (Kir1.1) channels: Control by an Arg-Lys-Arg triad disrupted in antenatal Bartter syndrome

Schulte, U., Hahn, H., Konrad, M., Jeck, N., Derst, C., Wild, K., ...

Inward-rectifier K+ channels of the ROMK (Kir1.1) subtype are responsible for K+ secretion and control of NaCl absorption in the kidney. A hallmark of these channels is their gating by intracellular...

Mutations associated with amyotrophic lateral sclerosis convert superoxide dismutase from an antiapoptotic gene to a proapoptotic gene: studies in yeast and neural cells.

Rabizadeh, S, Gralla, E B, Borchelt, D R, Gwinn, R, Valentine, J S, Sisodia, S, ...

Familial amyotrophic lateral sclerosis (FALS) is associated with mutations in SOD1, the gene encoding copper/zinc superoxide dismutase (CuZnSOD). However, the mechanism by which these mutations lead...

Rationale for and Efficacy of Prolonged-Interval Treatment Using Liposome-Encapsulated Amikacin in Experimental Mycobacterium avium Infection

Leitzke, S., Bucke, W., Borner, K., Müller, R., Hahn, H., Ehlers, S.

The potential of liposome-encapsulated antibiotics for prolonging drug application intervals was investigated by using a murine model of chronic lethal Mycobacterium avium infection. Liposomal...

Murine Model of Bartonella henselae Infection in the Immunocompetent Host

Regnath, T., Mielke, M. E. A., Arvand, M., Hahn, H.

Bartonella henselae is an emerging pathogen causing cat scratch disease, bacillary angiomatosis, and peliosis hepatis. Progress in understanding the pathogenesis of and the immune response to these...

Isolation of Nocardia paucivorans from the Cerebrospinal Fluid of a Patient with Relapse of Cerebral Nocardiosis

Eisenblätter, M., Disko, U., Stoltenburg-Didinger, G., Scherübl, H., Schaal, K. P., Roth, A., ...

Nocardia paucivorans represents a new species of the genus Nocardia that has recently been isolated from bronchial secretions of a patient with chronic lung disease. Here, we report on the course of...

Encephalomyocarditis viruses with short poly(C) tracts are more virulent than their mengovirus counterparts.

Hahn, H, Palmenberg, A C

We have constructed three cDNA clones of encephalomyocarditis virus strain R (EMCV-R) with poly(C) tracts of C4, C9, and C20. RNA transcribed from these cDNAs was infectious to HeLa cells, and the...

Mutational analysis of the encephalomyocarditis virus primary cleavage.

Hahn, H, Palmenberg, A C

Sixteen substitution mutations of the conserved DvExNPGP sequence, implicated in cardiovirus and aphthovirus primary polyprotein cleavage, were created in encephalomyocarditis virus cDNA, expressed,...

Diagnosis of extrapulmonary tuberculosis by Gen-Probe amplified Mycobacterium tuberculosis direct test.

Ehlers, S, Ignatius, R, Regnath, T, Hahn, H

A total of 294 specimens collected from nonrespiratory sites of 268 patients were tested for direct detection of Mycobacterium tuberculosis complex by the Gen-Probe Amplified Mycobacterium...

A new acid-fast trichrome stain for simultaneous detection of Cryptosporidium parvum and microsporidial species in stool specimens.

Ignatius, R, Lehmann, M, Miksits, K, Regnath, T, Arvand, M, Engelmann, E, ...

The detection in stool specimens of Cryptosporidium parvum and microsporidia, the most frequent parasitic pathogens causing diarrhea in AIDS patients, until now has depended on two different staining...

Comparative evaluation of modified trichrome and Uvitex 2B stains for detection of low numbers of microsporidial spores in stool specimens.

Ignatius, R, Henschel, S, Liesenfeld, O, Mansmann, U, Schmidt, W, Köppe, S, ...

At present, the laboratory diagnosis of intestinal infections caused by microsporidia depends on the detection of the typical spores either with a modified trichrome stain (MTS) or by staining with...

Functional analysis of human foamy virus accessory reading frames.

Baunach, G, Maurer, B, Hahn, H, Kranz, M, Rethwilm, A

Foamy viruses belong to the retroviruses which possess a complex genome structure. The human foamy virus (HFV) isolate bears three open reading frames (the so-called bel genes) in the 3' region of...

Protective immunity and granuloma formation are mediated by two distinct tumor necrosis factor alpha- and gamma interferon-dependent T cell-phagocyte interactions in murine listeriosis: dissociation on the basis of phagocyte adhesion mechanisms.

Mielke, M E, Rosen, H, Brocke, S, Peters, C, Hahn, H

Listeria-immune mice are able to express protective immunity in the absence of CD4+ T cells and an apparent granulomatous inflammation. Using a monoclonal antibody (5C6) able to inhibit the...

Humoral and cellular defense against intestinal murine infection with Yersinia enterocolitica.

Hanski, C, Naumann, M, Grützkau, A, Pluschke, G, Friedrich, B, Hahn, H, ...

The role of phagocytes and the complement system as potential host defense mechanisms against bacterial infection were studied in mice with two isogenic strains of Yersinia enterocolitica serotype O8...

Heat-killed Listeria monocytogenes and L. monocytogenes soluble antigen induce clonable CD4+ T lymphocytes with protective and chemotactic activities in vivo.

Brocke, S, Hahn, H

In the present study we attempted to analyze the possibility to induce in mice a T-cell response using killed Listeria monocytogenes in adjuvant. Clearly, nonviable antigen is capable of inducing...

T-cell subsets in delayed-type hypersensitivity, protection, and granuloma formation in primary and secondary Listeria infection in mice: superior role of Lyt-2+ cells in acquired immunity.

Mielke, M E, Ehlers, S, Hahn, H

Immunity to Listeria monocytogenes was studied in mice treated with rat monoclonal antibodies (MAbs) specific for the Thy-1.2, L3T4, and Lyt-2 T-cell markers. Three characteristic T-cell-mediated...

Inhibition of macrophage phagocytosis by Bacteroides fragilis in vivo and in vitro.

Rodloff, A C, Becker, J, Blanchard, D K, Klein, T W, Hahn, H, Friedman, H

A number of investigators have provided experimental evidence for synergistic effects in mixed infections with Escherichia coli and Bacteroides fragilis. In vitro studies have suggested that...

Production of Listeria-specific rat T-cell clones and role of interleukin-2 receptors in regulation of Listeria-dependent T-cell clone growth in vitro.

Stolpmann, R M, Näher, H, Osawa, H, Herrmann, T, Hahn, H, Diamantstein, T

Splenic T lymphocytes from rats immunized with the facultative intracellular bacterium Listeria monocytogenes were cloned by the limiting-dilution technique in the presence of accessory cells,...

Production of macrophage-activating and migration-inhibition factors in vitro by serologically selected and cloned Listeria monocytogenes-specific T cells of the Lyt 1+2- phenotype.

Sperling, U, Kaufmann, S H, Hahn, H

Lyt-selected Listeria-immune T lymphocytes from peritoneal exudates and cloned T cells were cocultured with heat-killed listeriae and peritoneal macrophages from nonimmune donors. Supernatants were...

Developmental interrelationship of specific Lyt 123 and Lyt 1 cell sets in expression of antibacterial immunity to Listeria monocytogenes.

Näher, H, Sperling, U, Hahn, H

Lyt phenotypes of peritoneal exudate T lymphocytes from Listeria monocytogenes-immune mice were determined with respect to their capacity to confer protection upon local or systemic transfer. It is...

Immunohistochemical and electron microscopic study of interaction of Yersinia enterocolitica serotype O8 with intestinal mucosa during experimental enteritis.

Hanski, C, Kutschka, U, Schmoranzer, H P, Naumann, M, Stallmach, A, Hahn, H, ...

The experimental infection of mice with Yersinia enterocolitica serotype O8 was investigated in a quantitative and histological study. The course of bacterial penetration and spreading was precisely...

Requirement for a bone marrow-derived component in the expression of cell-mediated antibacterial immunity.

Hahn, H

Mice were X irradiated with 400 R and 1 week post-irradiation were found to be unable to develop antilisterial immunity after active or passive immunization with immunologically committed spleen...

Effects of Dextran Sulfate 500 on Cell-Mediated Resistance to Infection with Listeria monocytogenes in Mice

Hahn, H.

Injection of dextran sulfate 500 caused loss of antibacterial resistance. Mice became more susceptible to an infection with Listeria monocytogenes and were unable to develop antilisterial immunity...

Human kinesin superfamily member 4 is dominantly localized in the nuclear matrix and is associated with chromosomes during mitosis.

Lee, Y M, Lee, S, Lee, E, Shin, H, Hahn, H, Choi, W, ...

In a previous study, we identified the human counterpart of murine kinesin superfamily member 4 (KIF4), a microtubule-based motor protein [Oh, Hahn, Torrey, Shin, Choi, Lee, Morse and Kim (2000)...

Interaction of permeant and blocking ions in cloned inward-rectifier K+ channels.

Oliver, D, Hahn, H, Antz, C, Ruppersberg, J P, Fakler, B

Blocking cloned inward-rectifier potassium (Kir) channels from the cytoplasmic side was analyzed with a rapid application system exchanging the intracellular solution on giant inside-out patches from...

pH gating of ROMK (Kir1.1) channels: Control by an Arg-Lys-Arg triad disrupted in antenatal Bartter syndrome

Schulte, U., Hahn, H., Konrad, M., Jeck, N., Derst, C., Wild, K., ...

Inward-rectifier K+ channels of the ROMK (Kir1.1) subtype are responsible for K+ secretion and control of NaCl absorption in the kidney. A hallmark of these channels is their gating by intracellular...

Mutations associated with amyotrophic lateral sclerosis convert superoxide dismutase from an antiapoptotic gene to a proapoptotic gene: studies in yeast and neural cells.

Rabizadeh, S, Gralla, E B, Borchelt, D R, Gwinn, R, Valentine, J S, Sisodia, S, ...

Familial amyotrophic lateral sclerosis (FALS) is associated with mutations in SOD1, the gene encoding copper/zinc superoxide dismutase (CuZnSOD). However, the mechanism by which these mutations lead...

Rationale for and Efficacy of Prolonged-Interval Treatment Using Liposome-Encapsulated Amikacin in Experimental Mycobacterium avium Infection

Leitzke, S., Bucke, W., Borner, K., Müller, R., Hahn, H., Ehlers, S.

The potential of liposome-encapsulated antibiotics for prolonging drug application intervals was investigated by using a murine model of chronic lethal Mycobacterium avium infection. Liposomal...

Murine Model of Bartonella henselae Infection in the Immunocompetent Host

Regnath, T., Mielke, M. E. A., Arvand, M., Hahn, H.

Bartonella henselae is an emerging pathogen causing cat scratch disease, bacillary angiomatosis, and peliosis hepatis. Progress in understanding the pathogenesis of and the immune response to these...

Isolation of Nocardia paucivorans from the Cerebrospinal Fluid of a Patient with Relapse of Cerebral Nocardiosis

Eisenblätter, M., Disko, U., Stoltenburg-Didinger, G., Scherübl, H., Schaal, K. P., Roth, A., ...

Nocardia paucivorans represents a new species of the genus Nocardia that has recently been isolated from bronchial secretions of a patient with chronic lung disease. Here, we report on the course of...

Encephalomyocarditis viruses with short poly(C) tracts are more virulent than their mengovirus counterparts.

Hahn, H, Palmenberg, A C

We have constructed three cDNA clones of encephalomyocarditis virus strain R (EMCV-R) with poly(C) tracts of C4, C9, and C20. RNA transcribed from these cDNAs was infectious to HeLa cells, and the...

Mutational analysis of the encephalomyocarditis virus primary cleavage.

Hahn, H, Palmenberg, A C

Sixteen substitution mutations of the conserved DvExNPGP sequence, implicated in cardiovirus and aphthovirus primary polyprotein cleavage, were created in encephalomyocarditis virus cDNA, expressed,...

Diagnosis of extrapulmonary tuberculosis by Gen-Probe amplified Mycobacterium tuberculosis direct test.

Ehlers, S, Ignatius, R, Regnath, T, Hahn, H

A total of 294 specimens collected from nonrespiratory sites of 268 patients were tested for direct detection of Mycobacterium tuberculosis complex by the Gen-Probe Amplified Mycobacterium...

A new acid-fast trichrome stain for simultaneous detection of Cryptosporidium parvum and microsporidial species in stool specimens.

Ignatius, R, Lehmann, M, Miksits, K, Regnath, T, Arvand, M, Engelmann, E, ...

The detection in stool specimens of Cryptosporidium parvum and microsporidia, the most frequent parasitic pathogens causing diarrhea in AIDS patients, until now has depended on two different staining...

Comparative evaluation of modified trichrome and Uvitex 2B stains for detection of low numbers of microsporidial spores in stool specimens.

Ignatius, R, Henschel, S, Liesenfeld, O, Mansmann, U, Schmidt, W, Köppe, S, ...

At present, the laboratory diagnosis of intestinal infections caused by microsporidia depends on the detection of the typical spores either with a modified trichrome stain (MTS) or by staining with...

Functional analysis of human foamy virus accessory reading frames.

Baunach, G, Maurer, B, Hahn, H, Kranz, M, Rethwilm, A

Foamy viruses belong to the retroviruses which possess a complex genome structure. The human foamy virus (HFV) isolate bears three open reading frames (the so-called bel genes) in the 3' region of...

Protective immunity and granuloma formation are mediated by two distinct tumor necrosis factor alpha- and gamma interferon-dependent T cell-phagocyte interactions in murine listeriosis: dissociation on the basis of phagocyte adhesion mechanisms.

Mielke, M E, Rosen, H, Brocke, S, Peters, C, Hahn, H

Listeria-immune mice are able to express protective immunity in the absence of CD4+ T cells and an apparent granulomatous inflammation. Using a monoclonal antibody (5C6) able to inhibit the...

Humoral and cellular defense against intestinal murine infection with Yersinia enterocolitica.

Hanski, C, Naumann, M, Grützkau, A, Pluschke, G, Friedrich, B, Hahn, H, ...

The role of phagocytes and the complement system as potential host defense mechanisms against bacterial infection were studied in mice with two isogenic strains of Yersinia enterocolitica serotype O8...

Heat-killed Listeria monocytogenes and L. monocytogenes soluble antigen induce clonable CD4+ T lymphocytes with protective and chemotactic activities in vivo.

Brocke, S, Hahn, H

In the present study we attempted to analyze the possibility to induce in mice a T-cell response using killed Listeria monocytogenes in adjuvant. Clearly, nonviable antigen is capable of inducing...

T-cell subsets in delayed-type hypersensitivity, protection, and granuloma formation in primary and secondary Listeria infection in mice: superior role of Lyt-2+ cells in acquired immunity.

Mielke, M E, Ehlers, S, Hahn, H

Immunity to Listeria monocytogenes was studied in mice treated with rat monoclonal antibodies (MAbs) specific for the Thy-1.2, L3T4, and Lyt-2 T-cell markers. Three characteristic T-cell-mediated...

Inhibition of macrophage phagocytosis by Bacteroides fragilis in vivo and in vitro.

Rodloff, A C, Becker, J, Blanchard, D K, Klein, T W, Hahn, H, Friedman, H

A number of investigators have provided experimental evidence for synergistic effects in mixed infections with Escherichia coli and Bacteroides fragilis. In vitro studies have suggested that...

Production of Listeria-specific rat T-cell clones and role of interleukin-2 receptors in regulation of Listeria-dependent T-cell clone growth in vitro.

Stolpmann, R M, Näher, H, Osawa, H, Herrmann, T, Hahn, H, Diamantstein, T

Splenic T lymphocytes from rats immunized with the facultative intracellular bacterium Listeria monocytogenes were cloned by the limiting-dilution technique in the presence of accessory cells,...

Production of macrophage-activating and migration-inhibition factors in vitro by serologically selected and cloned Listeria monocytogenes-specific T cells of the Lyt 1+2- phenotype.

Sperling, U, Kaufmann, S H, Hahn, H

Lyt-selected Listeria-immune T lymphocytes from peritoneal exudates and cloned T cells were cocultured with heat-killed listeriae and peritoneal macrophages from nonimmune donors. Supernatants were...

Developmental interrelationship of specific Lyt 123 and Lyt 1 cell sets in expression of antibacterial immunity to Listeria monocytogenes.

Näher, H, Sperling, U, Hahn, H

Lyt phenotypes of peritoneal exudate T lymphocytes from Listeria monocytogenes-immune mice were determined with respect to their capacity to confer protection upon local or systemic transfer. It is...

Immunohistochemical and electron microscopic study of interaction of Yersinia enterocolitica serotype O8 with intestinal mucosa during experimental enteritis.

Hanski, C, Kutschka, U, Schmoranzer, H P, Naumann, M, Stallmach, A, Hahn, H, ...

The experimental infection of mice with Yersinia enterocolitica serotype O8 was investigated in a quantitative and histological study. The course of bacterial penetration and spreading was precisely...

Requirement for a bone marrow-derived component in the expression of cell-mediated antibacterial immunity.

Hahn, H

Mice were X irradiated with 400 R and 1 week post-irradiation were found to be unable to develop antilisterial immunity after active or passive immunization with immunologically committed spleen...

Effects of Dextran Sulfate 500 on Cell-Mediated Resistance to Infection with Listeria monocytogenes in Mice

Hahn, H.

Injection of dextran sulfate 500 caused loss of antibacterial resistance. Mice became more susceptible to an infection with Listeria monocytogenes and were unable to develop antilisterial immunity...

Human kinesin superfamily member 4 is dominantly localized in the nuclear matrix and is associated with chromosomes during mitosis.

Lee, Y M, Lee, S, Lee, E, Shin, H, Hahn, H, Choi, W, ...

In a previous study, we identified the human counterpart of murine kinesin superfamily member 4 (KIF4), a microtubule-based motor protein [Oh, Hahn, Torrey, Shin, Choi, Lee, Morse and Kim (2000)...

Interaction of permeant and blocking ions in cloned inward-rectifier K+ channels.

Oliver, D, Hahn, H, Antz, C, Ruppersberg, J P, Fakler, B

Blocking cloned inward-rectifier potassium (Kir) channels from the cytoplasmic side was analyzed with a rapid application system exchanging the intracellular solution on giant inside-out patches from...

Peritoneal exudate T lymphocytes with specificity to sheep red blood cells. I. Production and characterization as to function and phenotype.

Hahn, H, Kaufmann, S H, Miller, T E, Mackaness, G B

T lymphocytes which mediate DTH reactions to sheep red blood cells (SRBC) in mice enter casein-induced peritoneal exudates from which they can be recovered and assayed in a passive transfer system....

Peritoneal exudate T lymphocytes with specificity to sheep red blood cells. III. High dose of antigen induces suppressor T cells which influence the appearance in exudates of effector T cells for delayed-type hypersensitivity and helper T cells for humoral immune responses.

Kaufmann, S H, Ahmed, J S, Chahin, M, Hahn, H

Antisera produced in rabbits against adherent cells of rat alveolar or peritoneal lavage fluid (anti-rat alveolar macrophage sera, ARAMS, or anti-rat peritoneal macrophage sera, ARPMS) were used to...

Peritoneal exudate T lymphocytes with specificity to sheep red blood cells. II. Inflammatory helper T cells and effector T cells in mice with delayed-type hypersensitivity and in suppressed mice.

Hahn, H, Kaufmann, S H, Falkenberg, F, Chahinin, M, Horn, W

Peritoneal exudate cells were induced in mice 4 days after immunization with SRBC. A low dose of SRBC (10(6) i.v.) caused T lymphocytes to appear in inflammatory exudates. These cells, not only...

Peritoneal exudate T lymphocytes with specificity to sheep red blood cells. IV. Fc receptors on specific peritoneal exudate lymphocytes and their role in delayed-type hypersensitivity reactions.

Kaufmann, S H, Hahn, H

In mice, delayed-type hypersensitivity (DTH) to sheep red blood cells (SRBC) is mediated by T cells. Peritoneal exudate T cells (PETLs) from mice optimally sensitized for DTH to SRBC form rosettes...

Mitogenicity of Entamoeba histolytica extracts for murine lymphocytes.

Diamantstein, T, Trissl, D, Klos, M, Gold, D, Hahn, H

Aqueous extracts or aqueous extracts of delipidated Entamoeba histolytica (E.h.e.) contain a mitogenic principle for murine lymphocytes. As detected by [3H]-thymidine incorporation and blast...

Involvement of M cells in the bacterial invasion of Peyer's patches: a common mechanism shared by Yersinia enterocolitica and other enteroinvasive bacteria.

Grützkau, A, Hanski, C, Hahn, H, Riecken, E O

Recent evidence indicates that ileal Peyer's patches represent the main infection route for Yersinia enterocolitica. In this study transmission and scanning electron microscopy have shown that only a...

Pathogenesis of the mucosal hyperplasia in self-filling blind loops of rat jejunum: a morphometric study in germ free animals.

Menge, H, Germer, C T, Stössel, R, Simes, G, Hahn, H, Riecken, E O

Bacterial overgrowth and high intraluminal concentrations of deconjugated bile acids are thought to be responsible for mucosal hyperplasia in self-filling blind loops of rat jejunum. To investigate...

Multiple cotton wool spots following bone marrow transplantation for treatment of acute lymphatic leukaemia.

Gloor, B, Gratwohl, A, Hahn, H, Kretzschmar, S, Robert, Y, Speck, B, ...

Three patients with acute lymphatic leukaemia developed visual impairment due to occlusion of small retinal vessels with multiple cotton wool spots after treatment which included whole body and skull...

Interleukin 2 receptor in patients with localized and systemic parasitic diseases.

Josimovic-Alasevic, O, Feldmeier, H, Zwingenberger, K, Harms, G, Hahn, H, Shrisuphanunt, M, ...

An enzyme-linked immunosorbent assay was used to quantify soluble interleukin 2 receptor (IL-2R) in the serum of patients with helminthic and protozoal infections. The results demonstrated that...

Dynamics of T cells of L3T4 and Ly 2 phenotype within granulomas in murine listeriosis.

Näher, H, Sperling, U, Takacs, L, Hahn, H

Monoclonal antibodies anti-Ly 1, anti-Ly 2 and GK1.5 were applied to determine phenotypes of T cells within granulomas formed as a result of infection of mice with the facultative intracellular...

Health concerns and attitudes regarding fluoridation.

Hahn, H.