R. Hartmann

Publication List Details

Period

1902 - 2009

Number

141

Co-Authors

deal.II—A General-Purpose Object-Oriented Finite Element Library (2009)

W. Bangerth, R. Hartmann

An overview of the software design and data abstraction decisions chosen for deal.II, a general purpose finite element library written in C++, is given. The library uses advanced object-oriented and...

Probing eV-scale axions with CAST (2009)

The CAST Collaboration, Arik, E., Aune, S., Autiero, D., Barth, K., Belov, A., ...

We have searched for solar axions or other pseudoscalar particles that couple to two photons by using the CERN Axion Solar Telescope (CAST) setup. Whereas we previously have reported results from...

Probing eV-scale axions with CAST (2008)

Arik, CAST Collaboration: E., Aune, S., Autiero, D., Barth, K., Belov, A., Beltrán, B., ...

We have searched for solar axions or other pseudoscalar particles that couple to two photons by using the CERN Axion Solar Telescope (CAST) setup. Whereas we previously have reported results from...

deal.II – a general purpose object oriented finite element library (2008)

W. Bangerth, R. Hartmann, G. Kanschat

An overview of the software design and data abstraction decisions chosen for deal.II, a general purpose finite element library written in C++, is given. The library uses advanced object-oriented and...

Error estimation and adjoint based refinement for an adjoint consistent DG discretisation of the compressible Euler equations (2008)

R. Hartmann

Adjoint consistency – in addition to consistency – is the key requirement for discontinuous Galerkin discretisations to be of optimal order in L2 as well as measured in terms of target functionals....

Effects of different management practices on the soil-water balance and crop yield for improved dryland farming in the Chinese Loess Plateau (2007)

Jin, K, Cornelis, W, Schiettecatte, W, Lu, J, Yao, Y, Wu, H, ...

Field experiments were carried out to study the effects of different soil management practices on the water balance, precipitation use efficiency (PUE), and crop yield (i.e. winter wheat and peanut)...

Background study for the pn-CCD detector of CERN Axion Solar Telescope (2007)

Cebrián, S., Rodríguez, A., Kuster, M., Beltrán, B., Carmona, J. M., Gómez, H., ...

The CERN Axion Solar Telescope (CAST) experiment searches for axions from the Sun converted into photons with energies up to around 10 keV via the inverse Primakoff effect in the high magnetic field...

The X-ray Telescope of CAST (2007)

Kuster, M, Bräuninger, H, Cebrián, S, Davenport, M, Elefteriadis, C, Englhauser, J, ...

The Cern Axion Solar Telescope (CAST) is in operation and taking data since 2003. The main objective of the CAST experiment is to search for a hypothetical pseudoscalar boson, the axion, which might...

The X-ray Telescope of CAST (2007)

Kuster, M., Bräuninger, H., Cébrian, S., Davenport, M., Elefteriadis, C., Englhauser, J., ...

The Cern Axion Solar Telescope (CAST) is in operation and taking data since 2003. The main objective of the CAST experiment is to search for a hypothetical pseudoscalar boson, the axion, which might...

Spectroscopic silicon imaging detectors: past achievements and new developments (2007)

Lutz, G., Andritschke, R., Andricek, L., Eckhardt, R., Englhauser, J., Fuchs, G., ...

The need of high quality spectroscopic semiconductor imaging detectors in X-ray astronomy was the principal driving force in founding the MPI Semiconductor Laboratory. Detectors developed in this...

The avalanche drift diode - a black illumination drift silicon photomultiplier (2007)

Ninkovic, J., Eckhardt, R., Hartmann, R., Holl, P., Koitsch, C., Lutz, G., ...

Development of high quantum efficiency photon detectors is needed for many low light level (LLL) applications. Recently a new type of photodetector was introduced, the so-called Silicon...

Measuring and modelling the soil shrinkage characteristic curve (2006)

Cornelis, W, Corluy, J, Medina, H, Diaz, J, Hartmann, R, Van Meirvenne, M, ...

The macroporosity, and to a lesser extent the microporosity, of swelling and shrinking soils is affected by their shrinkage behaviour. The magnitude of the changes in bulk volume in response to...

Analysis of the charge collection process in pn CCDs (2006)

Kimmel, N., Hartmann, R., Holl, P., Meidinger, N., Richter, R. H., Strüder, L.

At MPI Halbleiterlabor, pnCCDs have been continuously developed to improve readout noise, readout speed, charge transfer efficiency and energy resolution. Pixel sizes of 75µm, 51µm and 36µm were...

A new high-speed, single photon imaging CCD for the optical (2006)

Holl, P., Andrischke, R., Eckhardt, R., Hartmann, R., Koitsch, C., Lutz, G., ...

We report on first measurements from test structures verifying a new design concept of a single photon imaging CCD for the optical. The results confirm the sensitivity of a novel avalanche diode to...

Search for solar axions: the CAST experiment at CERN (2005)

Beltran, B, Andriamonje, Samuel A, Arsov, V, Aune, S, Autiero, D, Avignone, F T, ...

Hypothetical axion-like particles with a two-photon interaction would be produced in the sun by the Primakoff process. In a laboratory magnetic field they would be transformed into X-rays with...

Influence of simulated rainfall on physical properties of a conventionally tilled loess soil (2005)

Schiettecatte, W, Jin, K, Yao, Y, Cornelis, W, Lu, J, Wu, H, ...

Rainfall simulations were conducted on a loess derived silt loam soil (Henan province, P.R. China) under conventional tillage. This tillage practice is widespread and involves the turning of the...

Postnatal Cortical Development in Congenital Auditory Deprivation (2005)

Kral, A., Tillein, J., Heid, S., Hartmann, R., Klinke, R.

The study investigates early postnatal development of local field potentials (LFPs) in the primary auditory cortex of hearing and congenitally deaf cats. In hearing cats, LFPs elicited by electrical...

A parameterisation for the threshold shear velocity to initiate deflation of dry and wet sediment (2004)

Cornelis, W, Gabriels, D, Hartmann, R

A new parameterisation for the threshold shear velocity to initiate deflation of dry and wet particles is presented. It is based on the balance of moments acting on particles at the instant of...

An application of space technology to the terrestrial search for axions: the X-ray mirror telescope at CAST (2004)

Lutz, Gerhard, Bräuninger, H., Englhauser, J., Hartmann, R., Kang, D., Kotthaus, R., ...

An X-ray mirror telescope consisting of a Wolter I type mirror assembly as used in X-ray astronomy and a new type X-ray CCD has been added to the CERN Axion Solar Telescope experiment. It will...

Postnatal Cortical Development in Congenital Auditory Deprivation (2004)

Kral, A., Tillein, J., Heid, S., Hartmann, R., Klinke, R.

The study investigates early postnatal development of local field potentials (LFPs) in the primary auditory cortex of hearing and congenitally deaf cats. In hearing cats, LFPs elicited by electrical...

Postnatal Cortical Development in Congenital Auditory Deprivation (2004)

Kral, A., Tillein, J., Heid, S., Hartmann, R., Klinke, R.

The study investigates early postnatal development of local field potentials (LFPs) in the primary auditory cortex of hearing and congenitally deaf cats. In hearing cats, LFPs elicited by electrical...

Postnatal Cortical Development in Congenital Auditory Deprivation (2004)

Kral, A., Tillein, J., Heid, S., Hartmann, R., Klinke, R.

The study investigates early postnatal development of local field potentials (LFPs) in the primary auditory cortex of hearing and congenitally deaf cats. In hearing cats, LFPs elicited by electrical...

Postnatal Cortical Development in Congenital Auditory Deprivation (2004)

Kral, A., Tillein, J., Heid, S., Hartmann, R., Klinke, R.

The study investigates early postnatal development of local field potentials (LFPs) in the primary auditory cortex of hearing and congenitally deaf cats. In hearing cats, LFPs elicited by electrical...

Axion searches at CERN with the CAST Telescope (2003)

Eleftheriadis, C, Andriamonje, Samuel A, Arik, E, Autiero, D, Avignone, F T, Barth, K, ...

The CERN Axion Solar Telescope (CAST) searches for axions coming from photon to axion conversion in the sun's core, as stated by the Primakoff effect. Axions arise in particle physics as a...

X-ray imaging spectrometers in present and future satellite missions (2003)

Lechner, P., Hartmann, R., Holl, P., Lutz, G., Meidinger, N., Richter, R. H., ...

Observations in X-ray astronomy require imaging spectroscopy detectors with high-energy resolution, high quantum efficiency, two-dimensional position resolution, large sensitive area, low power...

The CERN Axion Solar Telescope (CAST): status and prospects (2003)

Irastorza, I. G., Andriamonje, S., Arik, E., Autiero, D., Avignone, F., Barth, K., ...

The CAST experiment is being mounted at CERN. It will make use of a decommissioned LHC test magnet to look for solar axions through its conversion into photons inside the magnetic field. The magnet...

Imaging Spectrometers for Future X-ray Missions (2002)

Strüder, L., Hasinger, G., Kollmer, J., Krause, N., Meidinger, N., Trümper, J., ...

Based on the operational experience with the EPIC pn-CCD system on board of XMM-Newton, new imaging X-ray spectroscopic detector systems for future X-ray missions will be introduced in terms of...

High Speed, Large Format X-ray CCDs for ESA's XEUS Mission (2002)

Strüder, L., Soltau, H., Bonerz, S., Bräuninger, H., Carathanassis, D., Eckhardt, R., ...

The pn-CCD camera on EPIC-XMM is the most advanced imaging X-ray spectrometer, as it unifies high quantum efficiency, high speed readout and high energy resolution simultaneously. The camera operates...

Hearing after Congenital Deafness: Central Auditory Plasticity and Sensory Deprivation (2002)

Kral, A., Hartmann, R., Tillein, J., Heid, S., Klinke, R.

The congenitally deaf cat suffers from a degeneration of the inner ear. The organ of Corti bears no hair cells, yet the auditory afferents are preserved. Since these animals have no auditory...

Evaluation of pedotransfer functions for predicting the soil moisture retention curve (2001)

Van Meirvenne, M, Hartmann, R

The soil moisture retention curve (MRC) is time consuming and expensive to measure directly, Several attempts have been made to establish a relation between readily available soil properties, like...

Evidence for micrometeoroid damage in the pn-CCD camera system aboard XMM-Newton (2001)

Strüder, L., Aschenbach, B., Bräuninger, H., Drolshagen, G., Englhauser, J., Hartmann, R.

The mirror systems of the X-ray observatory XMM-Newton were designed to image X-rays up to 15 keV by grazing incidence reflection onto a focal plane, equipped with Charge Coupled Devices (CCDs). In...

Evaporation losses from bare soils as influenced by cultivation techniques in semi-arid regions (2000)

Van Wesemael, B, Hartmann, R

The impact of cultivation techniques on the evaporation from bare soils was investigated in the laboratory. Two soil-types, which are important resources for rainfed cultivation of olives and almonds...

Congenital Auditory Deprivation Reduces Synaptic Activity within the Auditory Cortex in a Layer-specific Manner (2000)

Kral, A., Hartmann, R., Tillein, J., Heid, S., Klinke, R.

The present study investigates the functional deficits of naive auditory cortices in adult congenitally deaf cats. For this purpose, their auditory system was stimulated electrically using cochlear...

Metal-Insulator Transition in a 2-Dimensional System with an Easy Spin Axis (1999)

Senz, V., Doetsch, U., Gennser, U., Ihn, T., Heinzel, T., Ensslin, K., ...

The low-temperature resistivity of a SiGe 2-dimensional hole gas has been studied using the gate controlled carrier density as a parameter. A metal-insulator transition is seen both in the...

Untersuchungen an magnetischen Maßstäben zur Positionierung spurgeführter Fördermittel (1998)

Hartmann, R.

Die vorliegende Arbeit beschreibt ein Meßsystem zur inkrementellen oder auch absoluten Positionsbestimmung eines fördertechnischen Fahrzeuges.Dieses System beruht auf einem permanentmagnetischen...

Estimating crop coefficients for corn during an evapotranspiration experiment on an oxisol in Brazil (1994)

Villagra,M.M., Gabriels,D., Verplancke,H., Hartmann,R., Reichardt,K.

Soil water balance components were measured during two periods (from 1989 to 1991) on a Dark Red Latosol (oxisol) in Piracicaba,SP, Brazil. The change in soil water storage and the soil water fluxes...

Field determined variation of the unsaturated hydraulic conductivity functions using simplified analysis of internal drainage experiments (1994)

Villagra,M. M., Michiels,P., Hartmann,R., Bacchi,O.O.S., Reichardt,K.

Experimentally determined values of unsaturated soil hydraulic conductivity are presented for an Alfisol of the county of Piracicaba, S.P., Brazil. Simultaneous measurements of soil water content and...

(S)-2-Amino-1,3-propanediol-3-phosphate-carrying diradylglyceroglycolipids: Novel major membrane lipids of Clostridium innocuum (1994)

Fischer, W., Hartmann, R., Peter-Katalinic, J., Egge, H.

The definitive version is available at www.blackwell-synergy.com under http://search.ebscohost.com/login.aspx?direct=true&db=aph&AN=11956486&site=ehost-live

Modification of the aggregate stability indexes for the wet sieving method and the water drop technique (1993)

Ouessar, M, Hartmann, R, Desmet, J

Soil samples from an experimental field were investigated. The aggregate stability using the wet sieving method and the water drop technique as well as the soil erodibility using a rainfall simulator...

Teichoic acid and lipoteichoic acid of Streptococcus pneumoniae possess identical chain structures (1993)

Fischer, W., Behr, Th., Hartmann, R., Peter-Katalini, J., Egge, H.

The definitive version is available at www.blackwell-synergy.com under http://search.ebscohost.com/login.aspx?direct=true&db=aph&AN=12208795&site=ehost-live

Glycosphingolipids in cestodes (1992)

Dennis, R. D., Baumeister, St., Geyer, R., Peter-Katalinic, J., Hartmann, R., Egge, H., ...

The definitive version is available at www.blackwell-synergy.com under http://search.ebscohost.com/login.aspx?direct=true&db=aph&AN=13670688&site=ehost-live

Effect of application of pig slurry on soil penetration resistance and sugar-beet emergence (1991)

Desmet, J, Wontroba, J, Deboodt, M, Hartmann, R

The effect of the application of 50, 100 and 200 t ha-1 of pig slurry on soil penetration resistance, and sealing of the soil surface as a result of rainfall, was studied for a sandy loam soil in the...

Numerical solutions of the current distribution in superconducting cables (1987)

Hartmann, R., Rem, P., Klundert, L. Van De

Superconducting cables are described by current sheets using the continuum model of W. Carr Jr. [1] and assuming an anisotropic conductivity. Two different situations are considered: a) finite length...

Active Pixel Sensors for Imaging X-ray Spectrometers

Holl, P., Fischer, P., Hartmann, R., Hasinger, G., Kollmer, J., Krause, N., ...

Active Pixel Sensors (APS) offer high-resolution imaging in combination with a fast and flexible readout. The MPI Halbleiterlabor develops and produces DEPFET based APS devices. They are additionally...

Natural course of autoimmune thyroiditis in type 1 diabetes: association with gender, age, diabetes duration, and puberty

Kordonouri, O, Hartmann, R, Deiss, D, Wilms, M, Gruters-Kieslich, A

Aims: To investigate the natural history and incidence of autoimmune thyroiditis (AIT) in paediatric patients with type 1 diabetes (T1D).