P. Lehmann

Publication List Details

Period

1891 - 2009

Number

98

Co-Authors

Highly accurate distance measurements with a fiber-optical interferometer (2009)

Depiereux, F., König, N., Lehmann, P., Pfeifer, T., Schmitt, R.

Today micro-system technology and the development of new MEMS are emerging rapidly. In order for this development to become a success in the long run, measurement systems have to ensure product...

Reproduced from Vadose Zone Journal. Published by Soil Science Society of America. All copyrights reserved. Tomographical Imaging and Mathematical Description of Porous Media Used for the Prediction of Fluid Distribution (2008)

P. Lehmann, P. Wyss, A. Flisch, E. Lehmann, P. Vontobel, M. Krafczyk, ...

Flow and transport processes in porous media depend on the geometric properties of their pores, where the diameters typically range from micrometers to millimeters. In this study, we mapped the pore...

Measuring the effect of structural connectivity on the water dynamics in heterogeneous porous media using speedy neutron tomography (2008)

Schaap, J.D., Lehmann, P., Kästner, A., Vontobel, R., Hassanein, R., Frei, G., ...

The temporal and spatial distribution of water within a porous medium is affected by the medium¿s structure, i.e., the spatial arrangement of its constituents. To analyze structural effects on the...

The registry of the German Network for Systemic Scleroderma: frequency of disease subsets and patterns of organ involvement (2008)

Hunzelmann, N., Genth, E., Krieg, T., Lehmacher, W., Melchers, I., Meurer, M., ...

Objective. Systemic sclerosis (SSc) is a rare, heterogeneous disease, which affects different organs and therefore requires interdisciplinary diagnostic and therapeutic management. To improve the...

Fiber-optical sensor with miniaturized probe head and nanometer accuracy based on spatially modulated low-coherence interferogram analysis (2007)

Depiereux, F., Lehmann, P., Pfeifer, T., Schmitt, R.

Fiber-optical sensors have some crucial advantages compared with rigid optical systems. They allow miniaturization and flexibility of system setups. Nevertheless, optical principles such as...

Verfahren und Vorrichtung zur optischen Abstandsmessung (2007)

Lehmann, P., Depiereux, F.

DE 102005061464 A1 UPAB: 20070817 NOVELTY - Used for measurement from two sources of light with different average wavelengths ( L), light is guided with a probe to a measuring object surface....

Rainfall threshold for hillslope outflow: an emergent property of flow pathway connectivity (2007)

Lehmann, P., Hinz, C., Mcgrath, G., Mcdonnell, J. J.

Nonlinear relations between rain input and hillslope outflow are common observations in hillslope hydrology field studies. In this paper we use percolation theory to model the threshold relationship...

Rainfall threshold for hillslope outflow: an emergent property of flow pathway connectivity (2007)

Lehmann, P., Hinz, C., Mcgrath, G., Mcdonnell, J. J.

Nonlinear relations between rain input and hillslope outflow are common observations in hillslope hydrology field studies. In this paper we use percolation theory to model the threshold relationship...

Quantifying evaporation drying front dynamics using neutron radiography (2006)

Lehmann, P., Shokri, N., Or, D.

Soil evaporation plays an important role in the hydrologic cycle and affects near surface energy balance. Changes in evaporative drying rates reflect complex interplay between soil pore space and...

Rainfall threshold for hillslope outflow: an emergent property of flow pathway connectivity (2006)

Lehmann, P., Hinz, C., Mcgrath, G., Mcdonnell, J. J.

Nonlinear relations between rain input and hillslope outflow are common observations in hillslope hydrology field studies. In this paper we use percolation theory to model the threshold relationship...

Rainfall threshold for hillslope outflow: an emergent property of flow pathway connectivity (2006)

Lehmann, P., Hinz, C., Mcgrath, G., Mcdonnell, J. J.

Nonlinear relations between rain input and hillslope outflow are common observations in hillslope hydrology field studies. In this paper we use percolation theory to model the threshold relationship...

Rainfall threshold for hillslope outflow: an emergent property of flow pathway connectivity (2006)

P. Lehmann, C. Hinz, G. McGrath, J. J. McDonnell

Nonlinear relations between rain input and hillslope outflow are common observations in hillslope hydrology field studies. In this paper we use percolation theory to model the threshold relationship...

Morphometric analysis of Triatoma dimidiata   populations (Reduviidae:Triatominae) from Mexico and Northern Guatemala (2005)

P Lehmann, R Ordoñez, R Ojeda-Baranda, L Hidalgo-Sosa, C Monroy, ...

Triatoma dimidiata   is one of the major vectors of Chagas disease in Latin America. Its range includes Mexico, all countries of Central America, Colombia, and Ecuador. In light of recent genetic...

Future Prospects for Hypersonic Flight Test For University Students (2005)

Longo, J.M.A., Bozic, O., Behrens, J., Lehmann, P.

The transport to space of satellites and experiments with conventional expandable rockets is a very expensive and time demanding business and therefore almost prohibitive for Universities and...

Morphometric analysis of Triatoma dimidiata populations (Reduviidae:Triatominae) from Mexico and Northern Guatemala (2005)

Lehmann,P, Ordoñez,R, Ojeda-Baranda,R, Lira,J Mendez De, Hidalgo-Sosa,L, Monroy,C, ...

Triatoma dimidiata is one of the major vectors of Chagas disease in Latin America. Its range includes Mexico, all countries of Central America, Colombia, and Ecuador. In light of recent genetic...

Modelling the effect of particle size, shape and orientation of light transfer through porous media (2005)

Bänninger, D., Lehmann, P., Flühler, H.

In this study, we present a radiative-transfer model to simulate reflectance and transmittance of light by soil slabs. The radiative-transfer model implemented, referred to as the beam-tracing model,...

Modelling the effect of soil water content and sorption on dye-tracer fluorescence (2005)

Bänninger, D., Lehmann, P., Flühler, H., Guglielmetti, M.

Fluorescent dye tracers are used to show concentration maps of tracer fronts, plumes and pathways on soil profiles and in monolith cross sections. The physical process of fluorescence from the...

Photopatch testing: a consensus methodology for Europe (2004)

Ferguson, J, Andersen, K, Gonçalo, M, English, John, ...

A group of interested European Contact Dermatologists/Photobiologists met to produce a consensus statement on methodology, test materials and interpretation of photopatch testing. While it is...

HymoSens: Hybride mikrooptische Sensoren. (2004)

Lücke, P., Last, A., Mohr, J., Ruprecht, A., Osten, W., Tiziani, H., ...

5.Statuskolloquium des Programms Mikrosystemtechnik, Karlsruhe, 10.-11.Februar 2004

Confocal microoptical distance-sensor for precision metrology. (2004)

Lücke, P., Last, A., Mohr, J., Ruprecht, A., Osten, W., Tiziani, H.J., ...

Photonics Europe - Showcasing the Age of Light, Strasbourg, F, April 26-30, 2004

Mikrooptische konfokale Abstandssensoren für die Fertigungsmesstechnik. (2003)

Last, A., Lehmann, P.

Inspect : Bildverarbeitung, Oberfläche, Mikroskopie ; eine Sonderpublikation von Messtec & Automation, Ausgabe 2, Oktober 2003 S.64-66

Characterization of the inflammatory infiltrate and expression of endothelial cell adhesion molecules in lupus erythematosus tumidus (2002)

Kuhn, A., Sonntag, M., Lehmann, P., Megahed, M., Vestweber, D., Ruzicka, T.

Lupus erythematosus tumidus (LET) is a disease with characteristic clinical and histopathologic features that has not always been considered a subset of cutaneous lupus erythematosus (CLE). Although...

Organisation von Fertigung und Logistik (1993)

Mönnich, K.D., Brandt, B., Reuter, I., Steffin, G., Lehmann, P., Saffian, K.

Alle Ergebnisse waren zusammen mit den Erkenntnissen der Flächen- und Informationsflußanalyse grundlegende Voraussetzungen für die Reorganisationsplanung. Als erstes wurde festgelegt, den...

MAGNETIC PROPERTIES OF THE (Ce, La) Ru2Si2 SYSTEM (1988)

Haen, H., Kappler, J., Lapierre, F., Lehmann, P., Lejay, P., Flouquet, J., ...

Magnetization measurements of Ce1-xLaxRu2Si2 single crystals are reported. Antiferromagnetic order occurs for 0.08 ≤ x ≤ 0.9. For H parallel to the tetragonal c-axis, metamagnetic...

MAGNETIC PROPERTIES OF THE Ce-Rh BINARY PHASES (1988)

Kappler, J., Lehmann, P., Schmerber, G., Nieva, G., Sereni, J.

Crystallographic, magnetic and resistivity studies on the Ce-Rh binary phases clearly define two Ce ground state regions : i) CeRh3, CeRh2 and CeRh as intermediate valence compounds and ii) Ce5Rh4,...

MAGNETIC PROPERTIES OF THE (Ce, La) Ru2Si2 SYSTEM (1988)

Haen, H., Kappler, J., Lapierre, F., Lehmann, P., Lejay, P., Flouquet, J., ...

Magnetization measurements of Ce1-xLaxRu2Si2 single crystals are reported. Antiferromagnetic order occurs for 0.08 ≤ x ≤ 0.9. For H parallel to the tetragonal c-axis, metamagnetic...

MAGNETIC PROPERTIES OF THE Ce-Rh BINARY PHASES (1988)

Kappler, J., Lehmann, P., Schmerber, G., Nieva, G., Sereni, J.

Crystallographic, magnetic and resistivity studies on the Ce-Rh binary phases clearly define two Ce ground state regions : i) CeRh3, CeRh2 and CeRh as intermediate valence compounds and ii) Ce5Rh4,...

MAGNETIC PROPERTIES OF THE (Ce, La) Ru2Si2 SYSTEM (1988)

Haen, H., Kappler, J., Lapierre, F., Lehmann, P., Lejay, P., Flouquet, J., ...

Magnetization measurements of Ce1-xLaxRu2Si2 single crystals are reported. Antiferromagnetic order occurs for 0.08 ≤ x ≤ 0.9. For H parallel to the tetragonal c-axis, metamagnetic...

MAGNETIC PROPERTIES OF THE Ce-Rh BINARY PHASES (1988)

Kappler, J., Lehmann, P., Schmerber, G., Nieva, G., Sereni, J.

Crystallographic, magnetic and resistivity studies on the Ce-Rh binary phases clearly define two Ce ground state regions : i) CeRh3, CeRh2 and CeRh as intermediate valence compounds and ii) Ce5Rh4,...

HIGH ENERGY SPECTROSCOPY INVESTIGATION OF SOME TERNARY Ce SYSTEMS (1986)

Beaurepaire, E., Kappler, J., Lehmann, P., Krill, G., Godart, C.

LIII absorption and 3d photoemission results are presented for the alloys (Ce, La)Ru2Si2 and (Ce, Y)Ru2Si2. We show that valence and f-d hybridization variations are modest in this system where Ce...

HIGH ENERGY SPECTROSCOPY INVESTIGATION OF SOME TERNARY Ce SYSTEMS (1986)

Beaurepaire, E., Kappler, J., Lehmann, P., Krill, G., Godart, C.

LIII absorption and 3d photoemission results are presented for the alloys (Ce, La)Ru2Si2 and (Ce, Y)Ru2Si2. We show that valence and f-d hybridization variations are modest in this system where Ce...

HIGH ENERGY SPECTROSCOPY INVESTIGATION OF SOME TERNARY Ce SYSTEMS (1986)

Beaurepaire, E., Kappler, J., Lehmann, P., Krill, G., Godart, C.

LIII absorption and 3d photoemission results are presented for the alloys (Ce, La)Ru2Si2 and (Ce, Y)Ru2Si2. We show that valence and f-d hybridization variations are modest in this system where Ce...

New methods in architectural investigations to evaluate the acoustic qualities of concert halls (1975)

Plenge, G., Lehmann, P., Wettschureck, R., Wilkens, H.

Subjective assessments of some concert halls were compared with parameters describing the sound field physical characteristics. Artificial heads were used to receive the acoustic signals and the...

Assessment of a reflexion in relation to the direction (1971)

Lehmann, P., Wettschureck, R.

Syllable intelligibility tests were carried out for sound incidence directions in the horizontal plane and under equivalent conditions in the vertical plane, in a simple synthetic sound field (direct...

Aspects collectifs dans le néon 19 et le fluor 17 (1958)

Lehmann, P., Lévêque, A., Barloutaud, R., Grjebine, T.

Les résultats expérimentaux obtenus sur 17F et 19Ne peuvent s'expliquer à partir de calculs basés sur le modèle collectif.

Niveaux collectifs dans les noyaux pair-pair entre les masses 182 et 206 (1958)

Barloutaud, R., Lévêque, A., Lehmann, P., Quidort, J.

L'excitation coulombienne des deux premiers niveaux 2 + de 188W, 188Os, 190Os, 192Os, 194Pt a permis de mesurer les probabilités réduites de désexcitation. Une systématique des niveaux 2 + des...

Aspects collectifs dans le néon 19 et le fluor 17 (1958)

Lehmann, P., Lévêque, A., Barloutaud, R., Grjebine, T.

Les résultats expérimentaux obtenus sur 17F et 19Ne peuvent s'expliquer à partir de calculs basés sur le modèle collectif.

Niveaux collectifs dans les noyaux pair-pair entre les masses 182 et 206 (1958)

Barloutaud, R., Lévêque, A., Lehmann, P., Quidort, J.

L'excitation coulombienne des deux premiers niveaux 2 + de 188W, 188Os, 190Os, 192Os, 194Pt a permis de mesurer les probabilités réduites de désexcitation. Une systématique des niveaux 2 + des...

Aspects collectifs dans le néon 19 et le fluor 17 (1958)

Lehmann, P., Lévêque, A., Barloutaud, R., Grjebine, T.

Les résultats expérimentaux obtenus sur 17F et 19Ne peuvent s'expliquer à partir de calculs basés sur le modèle collectif.

Niveaux collectifs dans les noyaux pair-pair entre les masses 182 et 206 (1958)

Barloutaud, R., Lévêque, A., Lehmann, P., Quidort, J.

L'excitation coulombienne des deux premiers niveaux 2 + de 188W, 188Os, 190Os, 192Os, 194Pt a permis de mesurer les probabilités réduites de désexcitation. Une systématique des niveaux 2 + des...

Deuxième état excité de 19F. Vie moyenne et moment magnétique (1956)

Lehmann, P., Lévêque, A., Fiehrer, M., Pick, R.

On mesure la variation de distribution angulaire des rayons γ de 197 keV de 19F* par rapport à la direction du faisceau de protons, en fonction du champ magnétique agissant sur les noyaux. La...

Influence de la capture K sur les corrélations angulaires (1956)

Lehmann, P., Miller, J.

L'anisotropie différentielle de la corrélation angulaire de la cascade γ(170 keV)-γ(250 keV) de 111In est étudiée dans des sources polycristallines ioniques et métallique. Avec la...

Deuxième état excité de 19F. Vie moyenne et moment magnétique (1956)

Lehmann, P., Lévêque, A., Fiehrer, M., Pick, R.

On mesure la variation de distribution angulaire des rayons γ de 197 keV de 19F* par rapport à la direction du faisceau de protons, en fonction du champ magnétique agissant sur les noyaux. La...

Influence de la capture K sur les corrélations angulaires (1956)

Lehmann, P., Miller, J.

L'anisotropie différentielle de la corrélation angulaire de la cascade γ(170 keV)-γ(250 keV) de 111In est étudiée dans des sources polycristallines ioniques et métallique. Avec la...

Deuxième état excité de 19F. Vie moyenne et moment magnétique (1956)

Lehmann, P., Lévêque, A., Fiehrer, M., Pick, R.

On mesure la variation de distribution angulaire des rayons γ de 197 keV de 19F* par rapport à la direction du faisceau de protons, en fonction du champ magnétique agissant sur les noyaux. La...

Influence de la capture K sur les corrélations angulaires (1956)

Lehmann, P., Miller, J.

L'anisotropie différentielle de la corrélation angulaire de la cascade γ(170 keV)-γ(250 keV) de 111In est étudiée dans des sources polycristallines ioniques et métallique. Avec la...

Campaign against AIDS in Switzerland: evaluation of a nationwide educational programme.

Lehmann, P, Hausser, D, Somaini, B, Gutzwiller, F

The campaign against the spread of the acquired immune deficiency syndrome (AIDS) in Switzerland includes a nationwide educational programme. A booklet about AIDS was mailed to every Swiss household...

Methadone treatment practices and outcome for opiate addicts treated in drug clinics and in general practice: results from the National Treatment Outcome Research Study.

Gossop, M, Marsden, J, Stewart, D, Lehmann, P, Strang, J

BACKGROUND: General practitioners (GPs) are increasingly urged to become more involved in the care and treatment of drug misusers. Little information is available about the effectiveness of...

The registry of the German Network for Systemic Scleroderma: frequency of disease subsets and patterns of organ involvement

Hunzelmann, N., Genth, E., Krieg, T., Lehmacher, W., Melchers, I., Meurer, M., ...

Objective. Systemic sclerosis (SSc) is a rare, heterogeneous disease, which affects different organs and therefore requires interdisciplinary diagnostic and therapeutic management. To improve the...

Acne: a review of immunologic and microbiologic factors

Burkhart, C., Burkhart, C., Lehmann, P.

Acne vulgaris is a self-limiting skin disorder seen primarily in adolescents, whose aetiology appears to be multifactorial. The four main aetiological factors are hypercornification of the...

Optimum porphyrin accumulation in epithelial skin tumours and psoriatic lesions after topical application of δ-aminolaevulinic acid

Fritsch, C, Lehmann, P, Stahl, W, Schulte, K W, Blohm, E, Lang, K, ...

Photodynamic therapy with topically applied δ-aminolaevulinic acid is used to treat skin tumours by employing endogenously formed porphyrins as photosensitizers. This study examines the time course...