THE SEARCH-TIME OF A GRAPH (2008)
A. Bonato, P. Golovach, G. Hahn, J. Kratochv Íl
Abstract. We consider the game of Cops and Robber played on finite and countably infinite connected graphs. The length of games is considered on cop-win graphs, leading to the new parameter called...
Haverkamp, H., Shirazi, A., Raabe, B., Book, F., Hahn, G.
In this paper we present latest results in the development of a process for the fabrication of a selective emitter structure on mono- and multicrystalline silicon solar cells. The process is based on...
Investigations on the recombination activity of grain boundaries in mc silicon (2008)
Zuschlag, A., Micard, G., Junge, J., Käs, M., Seren, S., Hahn, G., ...
This paper focuses on the limitation of the effective intra-grain minority charge carrier diffusion length and surface recombination velocity at grain boundaries. Both can be extracted in principle...
Fast illuminated lock-in thermography: An inline shunt detection measurements tool (2008)
Seren, S., Hahn, G., Demberger, C., Nagel, H.
This paper focuses on the fast spatially resolved detection of material and / or processing induced shunting using fast illuminated Lock-In Thermography (iLIT). With this technique shunting can be...
Junge, J., Käs, M., Grötschel, D., Zuschlag, A., Seren, S., Hahn, G., ...
In the past few years the quality of Edge-defined Film-fed Growth (EFG) material has strongly improved and can now compete with most standard multicrystalline materials. The maximum conversion...
Crystalline Si thin film n-type solar cells: A screen printed rear junction approach (2007)
Buck, T., Helfricht, A., Kopecek, R., Peter, K., Hahn, G., Appel, W.
Progress in high efficiency processing of EFG silicon solar cells (2007)
Kaes, M., Hahn, G., Metz, A., Agostinelli, G., Ma, Y., Junge, J., ...
Efficiency potential of RGS silicon from current R&D production (2007)
Seren, S., Kaes, M., Hahn, G., Gutjahr, A., Burgers, A.R., Schönecker, A.
Hahn, G., Haverkamp, H., Raabe, B.
WO 2009013307 A2 UPAB: 20090220 NOVELTY - The method involves producing a two-dimensionally extending emitter (5) at an emitter surface of a solar cell substrate (21). A porous silicon layer (27) is...
Hahn, G., Haverkamp, H., Raabe, B., Dastgheib-Shirazi, A., Bock, F.
(A1) Es wird ein Verfahren zum Fertigen einer Silizium-Solarzelle mit einem rueckgeaetzten, vorzugsweise mit einem selektiven Emitter und eine entsprechende Solarzelle vorgestellt. Gemaess einem...
Cytopathic effects of the cytomegalovirus-encoded apoptosis inhibitory protein vMIA (2006)
Poncet, D., Szabadkai, G., Vozza, A., Scholz, S.R., Le Bras, M., ...
Replication of human cytomegalovirus (CMV) requires the expression of the viral mitochondria–localized inhibitor of apoptosis (vMIA). vMIA inhibits apoptosis by recruiting Bax to mitochondria,...
Lock-in thermography - A universal tool for local analysis of solar cells (2006)
Breitenstein, O., Rakotoniaina, J. P., Hahn, G., Kaes, M., Pernau, T., Seren, S., ...
Döring, M., Hahn, G., Imhof, W.
Acta Crystallographica E, 62(2006) S.m429-m431
Minor Planet Observations (2005)
Lagerkvist, Claes-Ingvar, Hahn, G., Hedelt, Pascal, Carlsson, O., Oja, T., Mottola, S., ...
Lock-in thermography - A universal tool for local analysis of solar cells (2005)
Isenberg, J., Breitenstein, O., Rakotoniaina, J.P., Hahn, G., Kaes, M., Pernau, T., ...
Lock-in thermography - A universal tool for local analysis of solar cells (2005)
Breitenstein, O., Rakotoniaina, J.P., Hahn, G., Kaes, M., Pernau, T., Seren, S., ...
Photometric Survey of Binary Near-Earth Asteroids (2004)
Pravec, P., Scheirich, P., Kusnirák, P., Sarounová, L., Mottola, S., Hahn, G., ...
Observation of transition metals at shunt locations in multicrystalline silicon solar cells (2004)
Buonassisi, T., Vyvenko, O.F., Istratov, A.A., Weber, E.R., Hahn, G., Sontag, D., ...
Shunts in silicon solar cells below screen-printed silver contacts (2004)
Huster, F., Seren, S., Schubert, G., Kaes, M., Hahn, G., Breitenstein, O., ...
Observation of transition metals at shunt locations in multicrystalline silicon solar cells (2004)
Buonassisi, T., Vyvenko, O.F., Istratov, A.A., Weber, E.R., Hahn, G., Sontag, D., ...
Boattini, A., D'Abramo, G., Scholl, H., Hainaut, O. R., Boehnhardt, H., West, R., ...
We have performed a Near Earth Asteroid search and follow-up test beyond 22nd magnitude with the 2.2-m MPG/ESO and the New Technology Telescope (NTT) facilities at La Silla. The experiment comprised...
Brody, Jed, Geiger, P., Hahn, G., Rohatgi, Ajeet
Presented at the 3rd World Conference on Photovoltaic Energy Conversion; Osaka, Japan; May 11-18, 2003.
ADAS: Asiago-DLR Asteroid Survey (2003)
Barbieri, C., Bertini, I., Magrin, S., Salvadori, L., Calvani, M., Claudi, R., ...
The Asagio-DLR Asteroid Survey is the joint program among the Department of Astronomy and Astronomical Observatory of Padova and the DLR Berlin, dedicated to the search of asteroids. The Minor Planet...
Prototype-Based Tests for Hybrid Reactive Systems (2003)
G. Hahn, J. Philipps, A. Pretschner, T. Stauner
Model-based testing relies on the use of behavior models to automatically generate sequences of inputs and expected outputs. These sequences can be used as test cases to the end of both validating...
Tests For Mixed Discrete-Continuous Systems (2003)
J. Philipps, G. Hahn, G. Hahn, A. Pretschner, ...
Model-based testing relies on the use of behavior models to automatically generate sequences of inputs and expected outputs. These sequences can be used as test cases to the end of both validating...
On the injective chromatic number of graphs (2002)
Hahn, G., Kratochvil, J., Sotteau, D., Siran, J.
We define the concepts of an injective colouring and the injective chromatic number of a graph and give some upper and lower bounds in general, plus some exact values. We explore in particular the...
Earthguard-1: A NEO Detection Space Mission (2002)
Leipold, M., Richter, A. Von, Hahn, G., Harris, A.W., Kührt, E., Michaelis, H., ...
The ADAS Inner Solar System Project (2002)
Hoffmann, M., Pignata, G., Barbieri, C.(Department Of Astronomy Of The University Of Padova, Padova, Italy), Bertini, I., Calvani, M., Claudi, R., ...
ADAS, the Asiago-DLR Asteroid Survey, is a joint program between the Department of Astronomy and Astronomical Observatory of Padova and the DLR Berlin, dedicated to the search of asteroids. The...
The Near-Earth Objects Follow-up Program IV. CCD Photometry in 1996-1999 (2002)
Krugly, Yu.N., Belskaya, I.N., Shevchenko, V.G., Chiorny, V.G., Velichko, F.P., Mottola, S., ...
Lightcurve observations of 16 near-Earth objects (NEOs) and 2 Mars-crossers in 1996-1999 from three observational sites are presented. Eight objects were observed shortly after their discovery within...
The Uppsala-DLR Trojan Survey of L4, the preceding Lagrangian cloud of Jupiter (2002)
Karlsson, O., Hahn, G., Mottola, S., Doppler, A., Gnädig, A.
We have used the ESO Schmidt telescope during the apparitions 1996, 1997 and 1998 to study the preceding Lagrangian cloud of Jupiter, L4. In our observed field of view, about 700 square degrees,...
A Study of Ship Hull Crack Arrester Systems. (2002)
Kanninen,M., Mills,E., Hahn,G., Marschall,C., Broek,D.
A world-wide survey of marine engineers, shipyards, and regulating agencies was conducted to ascertain both current and contemplated approaches to arresting cracks in ship hulls. A crack arrester...
Comparison of different techniques for edge isolation (2002)
Hauser, A., Hahn, G., Spiegel, M., Feist, H., Breitenstein, O., Rakotoniaina, J. P., ...
Investigation of 3D-inversion channels in solar cells on RGS silicon ribbons (2002)
Rakotoniaina, J. P., Breitenstein, O., Langenkamp, M., Werner, M., Hahn, G.
New life for the Asiago Schmidt S67/92 telescope (2001)
Barbieri, C., Calvani, M., Hahn, G., Mottola, S., Pignata, G., Salvadori, L.
Statistical Tools for Six Sigma (2001)
G. Hahn, N. Doganaksoy, C. Stanard, N. Doganaksoy, C. Stanard, G. J. Hahn, ...
Six Sigma Programs have proven valuable for improving quality and profitability. Based on the authors ’ experience, this article suggests items and areas to revisit in training and targeted tools...
The Size Distribution and Potential Hazards of Near-Earth AsteroidS (NEA) (2000)
Werner, S.C., Harris, A.W., Hahn, G.
We discuss techniques and roblems associated with estimating the size distribution of near-Earth asteroids and descirbe plans for a detailed study of the hazards posed by objects of various sizes on...
Erikson, A., Mottola, S., Lagerros, J.S.V., Lindgren, M., Piironen, J., Oja, T., ...
In this paper we present lightcurves and physical parameters for nine near-Earth objects (NEOs) (Eros, 1917 Cuyo, 2368 Beltrovata, 3753 Cruithne, 4769 Castalia, 4953 1990 MU, 6941 1991 OA, 1995 EK1,...
UDAS - Sökande efter jordnära objekt. (in Schwedisch) (2000)
Hahn, G., Davidsson, B., Erikson, A., Karlsson, O., Lagerros, J., ...
Observations of the trans-neptunian objects 1993 SC und 1996 TL66 with ISO (2000)
Thomas, N., Eggers, S., Lichtenberg, G., Fitzsimmons, A., Jorda, L., ...
Detection of Thermal Emission from 1993 SC -- First Results (2000)
Thomas, N., Eggers, S., Ip, W-H., Lichtenberg, G., Fitzsimmons, A., ...
The Uppsala-DLR Trojan Survey of the Preceding Lagrangian Cloud (2000)
Mottola, S., Carsenty, U., Hahn, G., Doppler, A., Gnädig, A.
Nuclear Parameters of Comet P/Borrelly (1999)
Rauer, H., Hahn, G., Harris, A. W., Helbert, J., Mottola, S., Oberst, J.
Comet Borrelly (19P/1904 Y2) is a potential target of the extended NASA Deep Space 1 mission. We have obtained photometric measurements of the comet in B, V and R filters on June 12/13, 1999 while it...
Long-term Orbital Evolution Study of (9969) 1992 KD (1999)
The orbital evolution of this asteroid has been studied by numerical integration methods, taking into account the pertubations by all major planets (Mercury through Neptune, Earth and Moon were...
The O.C.A. - DLR Asteroid Survey (O.D.A.S.) (1999)
Hahn, G., Hoffmann, H., Mottola, S., Neukum, G., Scholl, H., Maury, A., ...
UDTS - a Trojan survey for the Jupiter L5 cloud (1999)
Mottola, S., Carsenty, U., Hahn, G., Doppler, A., Gnädig, A.
Image processing and astrometric reduction routines of the OCA-DLR Asteroid Survey (O.D.A.S.) (1999)
Maurice Beaumont, Redouane Fodil, Daniel Isabey, Frédéric Lofaso, Alain Harf, Bruno Louis, ...
You might find this additional information useful... This article cites 28 articles, 16 of which you can access free at:
DETECTION OF PERIODIC DISTURBANCES IN RANDOMLY ROUGH SURFACES. (1998)
A method is presented by which the amplitude and periodicity of a rough water wave may be determined. The method hinges on the fact that electromagnetic waves reflected by a periodic surface are...
The German-French NEO Detection Program ODAS (1998)
Scholl, H., Hahn, G., Hoffmann, M., Maury, A., Mottola, S., & ODAS Team
3352 McAuliffe: Orbit and Physical model of the DS-1 target asteroid (1998)
Oberst, J., Mottola, S., Hahn, G., Harris, A., Giese, B., Wagner, R., ...
The Deep Space One (DS-1) mission is scheduled for a historic first encounter with a Near-Earth Object, 3352 McAuliffe, On January 20, 1999. Images obtained during the fly-by will allow us to...
The O.C.A.-DLR Asteroid Survey (O.D.A.S.) (1998)
Hahn, G., Hoffmann, M., Mottola, S., Neukum, G., Scholl, H., Maury, A.
O.D.A.S. is a dedicated programme to search for asteroids and comets, with special emphasis on NEOs within the framework of the EUNEASO proejct, in cooperation and support of global efforts in NEO...
Evolution of the orbits of the objects P/1996 R2 (Lagerkvist) and P/1996 N2 (Elst-Pizarro) (1997)
Two new interesting objects were observed recently in the asteroid belt. The object P/1996 R2 (Lagerkvist) has a Jupiter-crossing orbit. On August 7, 1996 Elst reported his discovery of the object...
The EUNEASO Project: A European NEO Search, Follow-up and Physical Observation Programme (1997)
Hahn, G., Mottola, S., Erikson, A., Harris, A. W., Neukum, G., Maury, A., ...
Hahn, G., Lundstroem, M., Lagerros, J. S. V., Hernius, O., Tancredi, G.
More than 7000 positions of moving objects were detected on 33 films obtained with the Schmidt telescope at the European Southern Observatory in Chile during August and September 1995. The majority...
The Near-Earth Objects Follow-Up Program (1997)
Pravec, P., Wolf, M., Sarounova, L., Mottola, S., Erikson, A., Hahn, G., ...
Nemtchinov, I.V.(1), Shuvalov, V.V.(1), Kosarev, I.B.(1), Artem'eva, N.A.(1), Trubetskaja, I.A.(1), Svetsov, V.V.(1), ...
Two-period lightcurve of 1994 AW1: Indication of a binary asteroid? (1997)
An analysis of the complex lightcurve of the Earth-approaching asteroid 1994 AW1 is presented. We have found that the lightcurve canbe explained as the sum of two components having different periods,...
Hahn, G., Lundstroem, M., Lagerros, J.S.V.(1), Hernius, O.(1), Tancredi, G.(2)
More than 7000 positions of moving objects have been detected on 33 films obtained with the Schmidt telescope at the European Southern Observatory in Chile during August and September 1995. The...
Luminosity of the Bolides Created by SL-9 Comet Fragments in the Jovian Atmosphere (1996)
Nemtchinov, I. V., Artem'eva, N. A., Ivanov, B. A., Kosarev, I. B., Shuvalov, V. V., Svetsov, V. V., ...
Orbital evolution of comet 1995 O1 Hale-Bopp (1996)
Bailey, M.E., Emel'yanenko, V.V., Hahn, G., Harris, N.W., Hughes, K.A., Muinonen, K., ...
Results from a series of long-term numerical integrations of orbits centred on that of C/1995 O1 (Hale-Bopp) are presented. Initially, 33 orbits taken from various sources were integrated in...
Imaging Lung Ventilation by Electrical Impedance Tomography (1995)
Hahn, G. (1), Sipinkov , I. (1), Schröder, T. (1), Hellige, G. (1), Baisch, F.
Hazards due to giant comets: climate and short-term catastrophism (1995)
Bailey, M.E.(1), Clube, S.V.M.(2), Hahn, G., Napier, W.M.(3), Valsecchi, G.B.(4)
Asteroiden im Visier optoelektronischer Kameras (1995)
Köhler, U., Wagner, R., Hahn, G., Neukum, G.
Geschildert wird die Entdeckung und die Erforschung von Asteroiden, ihr Vorkommen und ihre Haeufigkeit, ihr Auftreten in "Familien", ihre Groesse, ihre moegliche Zusammensetzung und der...
Blanco, C.(1), Hahn, G., Maury, A.(3), Savalle, R.(3), Scholl, H.(3)
Review of recent developments in NEO Search in Europe.
Secular Resonances and the Dynamics of Mars-Crossing and Near-Earth Asteroids (1995)
Froeschle, Ch.(1), Hahn, G., Gonczi, R.(1), Morbidelli, A.(1), Farinella, P.(1,2)
We study by numerical integration the secular dynamical behavior of a sample of 32 Mars-crossing and near-Earth asteroids. We divide the planet-crossing asteroid population into two groups, with...
The Near-Earth Objects Follow-Up Program: First Results (1995)
Mottola, S., De Angelis, G.(1), Di Martino, M.(2), Erikson, A., Hahn, G., Neukum, G.
In the framework of our project for the establishment of a follow-up station to be integrated into the future European network for the search for near-Earth objects (EUNEASO), we have carried out...
The slow rotation of 253 Mathilde (1995)
Mottola, S., Sears, W.D.(1), Erikson, A., Harris, A.W.(1), Young, J.W.(1), Hahn, G., ...
Recent Developements in NEO Research (1994)
Ein Ueberblick ueber die dynamischen und physikalischen Eigenschaftenvon erdnahen Asteroiden und Kometen wurde gegeben. Im besonderen wurden die neuesten Forschungsresultate und Entdeckungen...
Accurate Astrometry from CCD Observations. (1994)
Our program to derive accurate astrometric positions of asteroids from CCD frames, taken originally for photometric lightcurve observations, has been presented. The potential of this method to...
Update on EUNEASO (European Near-Earth Asteroid Observatory) (1994)
An update of our initiative to organize a European search program for NEO has been given. A report on NEO search and observation activities in various European countries was presented. The current...
A NEO Search-, Follow-up and Physical-Observation Programme (1994)
Maury, A.(1), Savalle, R.(1), Hahn, G., Mottola, S., Erikson, A., Neukum, G.
Our groups are involved in establishing a search programme for asteoids and comets in near-Earth space, using existing European (Schmidt) telescopes. The whole project shall be seen as a part of a...
Pa spaning efter domedagsstenen (1994)
Auf der Suche nach dem Weltuntergangsstein. Im Rahmen einer Artikelserie in der populaerwissenschaftlichen Zeitschrift "Forskningoch Framsteg" befasst sich der Artikel mit den moeglichen...
Erikson, A., Hahn, G., Albrecht, R.(3), Orning, W.(1), ...
Photoelectric photometry of 15 mainbelt asteroids was carried out at ESO, La Silla, Chile with the 0.50 ESO, the 0.60 cm Bochum, the 0.90 Dutch and 1.0 m ESO telescopes, at CTIO, Chile with the 0.60...
Asteroid 5335 Damocles and its implications for cometary dynamics (1994)
Asher, D.J.(1,2), Bailey, M.E.(3), Hahn, G., Steel, D.I.(4,5)
Results are presented for the long-term resolution of an ensemble of orbits similar to that of the high-inclination, intermediate-period asteroid 5335 Damocles (formerly 1991 DA). This body has a...
Asteroids falling into the Sun (1994)
Farinella, P.(1,2,3), Froeschle, Ch.(2), Froeschle, Cl.(2), Gonczi, R(2), Hahn, G., Morbidelli, A.(2), ...
Physical Studies of Near-Earth Asteroids (1994)
Hahn, G., Mottola, S., Angelis, G. De(1), Martino, M. Di(2), Neukum, G.
A new, long-term project has been started at the Institute of Planetary Exploration of the DLR in Berlin-Adlershof which is aimed to derive physical properties of Near-Earth asteroids (NEA). Weplan...
SYN - The interplanetary survey (1994)
Rickman, H.(1), Magnusson, P.(1), Hahn, G.(1), Dahlgren, M.(1), Erikson, A., ...
Our close neighbourhood in space contains numerous small bodies. Due to their faintness most are still unknown to us: some may be dormant comets, others are probably remnants of objects from which...
Physical Studies of Near-Earth Asteroids (1994)
Hahn, G., Mottola, S., Angelis, G. De (1), Martino, M. Di (2)
A new, long-term project has been started at the Institute of Panetary Exploration of th DLR in Berlin-Adlershof which is aimed to derive physical properties of Near-Earth Asteroids(NEA). We plan to...
Diplomarbeit, Univ.Karlsruhe 1977
A total of 98.7% of streptococci, groups A,B,C, and G, isolated from various sources was correctly identified by the co-agglutination technique. The active components in this technique are protein...
Modulation of monocyte activation in patients with rheumatoid arthritis by leukapheresis therapy.
Hahn, G, Stuhlmüller, B, Hain, N, Kalden, J R, Pfizenmaier, K, Burmester, G R
One of the hallmarks in rheumatoid arthritis (RA) is the intense activation of the monocyte-macrophage system. In the present investigation, the modulation of blood monocyte activation was studied...
A total of 98.7% of streptococci, groups A,B,C, and G, isolated from various sources was correctly identified by the co-agglutination technique. The active components in this technique are protein...
Modulation of monocyte activation in patients with rheumatoid arthritis by leukapheresis therapy.
Hahn, G, Stuhlmüller, B, Hain, N, Kalden, J R, Pfizenmaier, K, Burmester, G R
One of the hallmarks in rheumatoid arthritis (RA) is the intense activation of the monocyte-macrophage system. In the present investigation, the modulation of blood monocyte activation was studied...
Bartels, T, Steinbach, F, Hahn, G, Ludwig, H, Borchers, K
The mouse model was used to study the pathogenesis of equine herpesvirus type 1 (EHV-1) after primary and secondary intranasal infections. Within a few hours after infection, EHV-1 was found in nasal...
Haemodialysis in 'hepatorenal syndrome': report on two cases.
Keller, F, Wagner, K, Lenz, T, Pommer, W, Hahn, G, Molzahn, M, ...
We report two patients with hepatorenal syndrome who recovered from oliguria and renal failure after temporary treatment with haemodialysis. Hepatorenal syndrome developed under diuretic treatment in...
Weber-Grandke, H, Hahn, G, Mutschler, E, Möhrke, W, Langguth, P, Spahn-Langguth, H
The pharmacokinetics of the two enantiomers of tranylcypromine were evaluated in six healthy subjects after oral dosage of the racemate (20 mg of the sulphate) and the single enantiomers (10 mg of...
Capital market equilibrium without riskless assets: heterogeneous expectations
Asset market equilibrium, Satiation, CAPM, Heterogeneous expectations, G12, G11, D51, D52,