J. Hoffmann

Publication List Details

Period

1888 - 2009

Number

223

Co-Authors

Rotational cooling of HD+ molecular ions by superelastic collisions with electrons (2009)

Shafir, D., Novotny, S., Buhr, H., Altevogt, S., Faure, A., Grieser, M., ...

Merging an HD{^+} beam with velocity matched electrons in a heavy ion storage ring we observed rapid cooling of the rotational excitations of the HD+ ions by superelastic collisions (SEC) with the...

Electron-ion Recombination of Fe X forming Fe IX and of Fe XI forming Fe X: Laboratory Measurements and Theoretical Calculations (2009)

Lestinsky, M., Badnell, N. R., Bernhardt, D., Grieser, M., Hoffmann, J., Lukić, D., ...

We have measured electron-ion recombination for Fe$^{9+}$ forming Fe$^{8+}$ and for Fe$^{10+}$ forming Fe$^{9+}$ using merged beams at the TSR heavy-ion storage-ring in Heidelberg. The measured...

Optimale Verpackungswege für eine nachhaltige Logistik (2009)

Gesenhoff, E., Hoffmann, J.

Der Einsatz der richtigen Software zur Verpackungsoptimierung kann einen Beitrag zum nachhaltigen Umgang mit knappen Ressourcen in der Logistik leisten. Insbesondere die bestmögliche Nutzung von...

Kosten des Paletten-Tauschverfahrens - Aktuelle Ergebnisse einer empirischen Studie: Vortrag gehalten auf dem 2. EHI/GS1 Packaging Jahreskongress, PACK 2009 (2009)

Hoffmann, J.

Über die Höhe der Kosten eines Palettenumlaufes und die Verteilung innerhalb der logistischen Kette gibt es bis heute keine verlässlichen Zahlen. Um diese Kosten transparenter zu gestalten, hat...

Functional description of geoprocessing services as conjunctive datalog queries (2009)

Fitzner, D., Hoffmann, J., Klien, E.

Discovery of suitable web services is a crucial task in Spatial Data Infrastructures (SDI). In this work, we develop a novel approach to the discovery of geoprocessing services (WPS). Discovery...

The HypHI project: Hypernuclear spectroscopy with stable heavy ion beams and rare isotope beams at GSI and FAIR (2008)

Bianchin, S., Achenbach, P., Ajimura, S., Borodina, O., Fukuda, T., Hoffmann, J., ...

The HypHI collaboration aims to perform a precise hypernuclear spectroscopy with stable heavy ion beams and rare isotope beams at GSI and fAIR in order to study hypernuclei at extreme isospin,...

Spectroscopy and dissociative recombination of the lowest rotational states of H3+ (2008)

Petrignani, A., Kreckel, H., Berg, M. H., Altevogt, S., Bing, D., Buhr, H., ...

The dissociative recombination of the lowest rotational states of H3+ has been investigated at the storage ring TSR using a cryogenic 22-pole radiofrequency ion trap as injector. The H3+ was cooled...

Anisotropic fragmentation in low-energy dissociative recombination (2008)

Novotny, S., Rubinstein, H., Buhr, H., Novotný, O., Hoffmann, J., Mendes, M. B., ...

On a dense energy grid reaching up to 75 meV electron collision energy the fragmentation angle and the kinetic energy release of neutral dissociative recombination fragments have been studied in a...

TERRASAR-X: HOW CAN HIGH RESOLUTION SAR DATA SUPPORT THE OBSERVATION OF URBAN AREAS? (2008)

A. Roth, J. Hoffmann, T. Esch

TerraSAR-X is a new German radar satellite that shall be launched in mid 2006. The expected lifetime is 5 years. It carries a high frequency X-band Synthetic Aperture Radar (SAR) sensor that can be...

Neue Mehrweg-Displays für effiziente Getränkedistribution (2008)

Hoffmann, J., Ströhmer, M.

Effektives Handling und die werbewirksame Präsentation von Getränken lieferten der Debrouck GmbH in Menden die Basis für die Entwicklung eines Mehrweg-Trays. Nicht allein die Vollgutpräsentation...

Thin PTFE-like membranes allow characterizing germination and mechanical penetration competence of pathogenic fungi (2008)

Küster, S., Ludwig, N., Willers, G., Hoffmann, J., Deising, H.B., Kiesow, A.

Investigating the penetration behavior of pathogenic fungi often fails because natural substrata vary significantly with respect to morphological and microstructural properties. To establish in vitro...

Dipolynomial Minimal Bases And Linear Systems In AR-Representation (2007)

J. Hoffmann, D. Prätzel-Wolters

This paper deals with a module theoretic approach to the dipolynomial matrix parametrization of discrete-time behaviour systems as introducted by Willems [1991]. Canonical minimal lag representations...

Electron-ion recombination of Si IV forming Si III: Storage-ring measurement and multiconfiguration Dirac-Fock calculations (2007)

Schmidt, E. W., Bernhardt, D., Mueller, A., Schippers, S., Fritzsche, S., Hoffmann, J., ...

The electron-ion recombination rate coefficient for Si IV forming Si III was measured at the heavy-ion storage-ring TSR. The experimental electron-ion collision energy range of 0-186 eV encompassed...

Obst und Gemüse richtig verpacken: Veränderungen im Marktumfeld mit großen Auswirkungen auf Transportverpackungen (2007)

Hoffmann, J., Schneider, S., Lange, V.

Die Europäer essen mit wachsender Begeisterung frisches Obst und Gemüse. Unter diesem Aspekt stellt die Distribution der sensiblen Produkte hohe Anforderungen an die Logistik - und ist ein großer...

Mehrweganteil wird in Europa steigen (2007)

Hoffmann, J., Schneider, S., Lange, V.

Die Europäer essen mit wachsender Begeisterung frisches Obst und Gemüse. Die Distribution der sensiblen Produkte stellt hohe Anforderungen an die Logistik - und ist ein großer Markt für Anbieter...

Europäisches Obst und Gemüse in der richtigen Verpackung (2007)

Hoffmann, J., Schneider, S., Lange, V.

Die Europäer essen mit wachsender Begeisterung frisches Obst und Gemüse. Die Distribution der sensiblen Produkte stellt hohe Anforderungen an die Logistik - und ist ein großer Markt für Anbieter...

Wenn der Nachschub fehlt ... (2007)

Hoffmann, J., Schneider, S.

Jeder kennt die Situation: Volle Regale im Supermarkt, aber das gewünschte Produkt ist nicht auffindbar. Wer in dieser Situation die Suche nach kompetenter Hilfe antritt, mag eine Ahnung davon...

Mechanisms of subliminal response priming (2007)

Kiesel, A., Kunde, W., Hoffmann, J.

Subliminal response priming has been considered to operate on several stages, e.g. perceptual, central or motor stages might be affected. While primes' impact on target perception has been clearly...

Platelet-rich plasma preparation using three devices: Implications for platelet activation and platelet growth factor release (2006)

Everts, P, Mahoney, C, Hoffmann, J, Schonberger, J, Box, H, Van Zundert, A, ...

Background: In this study, three commercial systems for the preparation of platelet-rich plasma (PRP) were compared and platelet growth factors release was measured. Methods: Ten healthy volunteers...

Church Anchor Ambient Noise Final Report (2006)

Hoffmann, J.

Omnidirectional ambient noise intensity measurements obtained in the CHURCH ANCHOR Exercise area, the eastern quarter of the Pacific north of 20 degrees N, during September 1973, are discussed as a...

Mehrweg zahlt sich aus: Wie Transportverpackungen die Logistikkosten senken können (2006)

Lange, V., Hoffmann, J.

Betrachtet man den Einkaufsprozess von frischem Obst und Gemüse in Handelsunternehmen in Europa, spielt die Frage nach der Transportverpackung immer noch eine untergeordnete Rolle. Beim Gang durch...

Mehrweg zahlt sich aus: Wie Transportverpackungen die Logistikkosten senken können (2006)

Lange, V., Hoffmann, J.

Betrachtet man den Einkaufsprozess von frischem Obst und Gemüse in Handelsunternehmen in Europa, spielt die Frage nach der Transportverpackung immer noch eine untergeordnete Rolle. Beim Gang durch...

Vergleich von Verpackungssystemen für frisches Obst und Gemüse: Fraunhofer-IML untersuchte die Lieferketten in mehreren europäischen Ländern - mit aufschlussreichen Ergebnissen und Empfehlungen für die Praxis (2006)

Hoffmann, J., Wagner, M.

Betrachtet man den Einkaufsprozess von frischem Obst und Gemüse in Handelsunternehmen in Europa, spielt die Frage nach der Transportverpackung (TPV) immer noch eine untergeordnete Rolle. Maßgeblich...

M1 transition rates in Co XI and Co XIII measured at a heavy-ion storage ring (2006)

Träbert, E., Reinhardt, S., Hoffmann, J., Wolf, A.

Abstract. Because of the high cosmic abundance of iron, data on Fe are of particular interest in astrophysics, whereas data on the neighbouring element Co with its lower abundance usually are not....

Comparación de sistemas de envases para fruta y verdura (2006)

Hoffmann, J., Wagner, M.

Fraunhofer IML untersuchte die Lieferketten in mehreren europäischen Ländern - mit aufschlussreichen Ergebnissen für die Praxis.

High resolution dissociative recombination of cold H+3and first evidence for nuclear spin effects (2005)

Kreckel,H., Motsch,M., Mikosch,J., Glosik,J., Plasil,R., Altevogt,S., ...

The energy-resolved rate coefficient for the dissociative recombination (DR) of H+3 with slow electrons has been measured by the storage-ring method using an ion beam produced from a radiofrequency...

Dielectric relaxation in chevron surface stabilized ferroelectric liquid crystals (2005)

Jezewski, W., Kuczynski, W., Hoffmann, J.

The dielectric response of surface stabilized ferroelectric liquid crystals with chevron layer structure is studied within low and intermediate frequency ranges, characteristic for collective...

The contribution of sulphuric acid to atmospheric particle formation and growth: a comparison between boundary layers in Northern and Central Europe (2005)

Fiedler,V., Dal Maso,M., Boy,M., Aufmhoff,H., Hoffmann,J., Schuck,T., ...

Atmospheric gaseous sulphuric acid was measured and its influence on particle formation and growth was investigated building on aerosol data. The measurements were part of the EU-project QUEST and...

The contribution of sulphuric acid to atmospheric particle formation and growth: a comparison between boundary layers in Northern and Central Europe (2005)

V. Fiedler, M. Dal Maso, M. Boy, H. Aufmhoff, J. Hoffmann, T. Schuck, ...

Atmospheric gaseous sulphuric acid was measured and its influence on particle formation and growth was investigated building on aerosol data. The measurements were part of the EU-project QUEST and...

Was kostet Verpackung wirklich? (2005)

Wagner, M., Hoffmann, J.

Die Verpackung führt in der Logistik häufig ein Schattendasein. Sofern sie in den Fokus einer Optimierungsdiskussion rückt, dann meist isoliert aus dem Blickwinkel des verpackenden bzw....

Organische und anorganische Schadstoffe: Untersuchungen in Magazinen des Niedersächsischen Landesmuseums Hannover (2005)

Schieweck, A., Hoffmann, J., Genning, C., Salthammer, T.

Indoor pollution in cultural institutions is of particular importance. On the one hand it is essential to provide a healthy indoor climate for museum staff and visitors, on the other hand cultural...

The contribution of sulphuric acid to atmospheric particle formation and growth: a comparison between boundary layers in Northern and Central Europe (2005)

Fiedler, V., Dal Maso, M., Boy, M., Aufmhoff, H., Hoffmann, J., Schuck, T., ...

Atmospheric gaseous sulphuric acid was measured and its influence on particle formation and growth was investigated building on aerosol data. The measurements were part of the EU-project QUEST and...

High resolution dissociative recombination of cold H+3and first evidence for nuclear spin effects (2005)

Kreckel, H., Motsch, M., Mikosch, J., Glosik, J., Plasil, R., Altevogt, S., ...

The energy-resolved rate coefficient for the dissociative recombination (DR) of H+3 with slow electrons has been measured by the storage-ring method using an ion beam produced from a radiofrequency...

The contribution of sulphuric acid to atmospheric particle formation and growth: a comparison between boundary layers in Northern and Central Europe (2005)

Fiedler, V., Dal Maso, M., Boy, M., Aufmhoff, H., Hoffmann, J., Schuck, T., ...

Atmospheric gaseous sulphuric acid was measured and its influence on particle formation and growth was investigated building on aerosol data. The measurements were part of the EU-project QUEST and...

The contribution of sulphuric acid to atmospheric particle formation and growth: a comparison between boundary layers in Northern and Central Europe (2005)

Fiedler, V., Dal Maso, M., Boy, M., Aufmhoff, H., Hoffmann, J., Schuck, T., ...

Atmospheric gaseous sulphuric acid was measured and its influence on particle formation and growth was investigated building on aerosol data. The measurements were part of the EU-project QUEST and...

The contribution of sulphuric acid to atmospheric particle formation and growth: a comparison between boundary layers in Northern and Central Europe (2005)

Fiedler, V., Dal Maso, M., Boy, M., Aufmhoff, H., Hoffmann, J., Schuck, T., ...

Atmospheric gaseous sulphuric acid was measured and its influence on particle formation and growth was investigated building on aerosol data. The measurements were part of the EU-project QUEST and...

The contribution of sulphuric acid to atmospheric particle formation and growth: a comparison between boundary layers in Northern and Central Europe (2005)

Fiedler, V., Dal Maso, M., Boy, M., Aufmhoff, H., Hoffmann, J., Schuck, T., ...

Atmospheric gaseous sulphuric acid was measured and its influence on particle formation and growth was investigated building on aerosol data. The measurements were part of the EU-project QUEST and...

The contribution of sulphuric acid to atmospheric particle formation and growth: a comparison between boundary layers in Northern and Central Europe (2005)

V. Fiedler, M. Dal Maso, M. Boy, H. Aufmhoff, J. Hoffmann, T. Schuck, ...

Atmospheric gaseous sulphuric acid was measured and its influence on particle formation and growth was investigated building on aerosol data. The measurements were part of the EU-project QUEST and...

Ordered Landmarks in Planning (2004)

Hoffmann, J., Porteous, J., Sebastia, L.

Many known planning tasks have inherent constraints concerning the best order in which to achieve the goals. A number of research efforts have been made to detect such constraints and to use them for...

Detecting coal fires in China using differential interferometric synthetic aperture radar (InSAR) (2004)

Hoffmann, J., Roth, Achim, Tetzlaff, Anke, Voigt, Stefan

In this study we investigate the feasibility of detecting subsurface in subsurface coal deposits through InSAR observations of surface displacements. Uncontrolled burning of subsurface coal seams...

Thermographic materials characterization (2004)

Rösner, H., Netzelmann, U., Hoffmann, J., Karpen, W., Kramb, V., Meyendorf, N.

Thermal techniques are attractive for materials characterization. They provide sophisticated contrast mechanisms and fast, non-contact investigation of large inspection areas. Recent progress in the...

Degradation of aircraft structures (2004)

Meyendorf, N., Eylon, D., Frankel, G., Hoffmann, J., Khobaib, M., Rösner, H., ...

Maintenance and reliability of aircraft is a major safety concern and economical factor. Many civilian and military aircraft have been in service for 35 years or more. Aircrafts that were originally...

High-resolution nondestructive evaluation at the center for materials diagnosis (2004)

Meyendorf, N., Sathish, S., Druffner, C., Blackshire, J., Hoffmann, J., Zhan, Q., ...

The paper will give a brief overview on techniques that have been developed or are in progress for high resolution characterization of materials at the Center for Materials Diagnostics, University of...

Scorecard Beschaffungslogistik: Einkaufs-Organisation in kleinen und mittelständische Unternehmen (2004)

Wagner, M., Hoffmann, J.

In Zeiten eines schwierigen gesamtwirtschaftlichen Umfelds bietet die Beschaffungsfunktion bekanntermaßen Potenziale, die zeitnah und ergebniswirksam ausgeschöpft werden können. Dabei sind...

Elektromotorisch betreibbare Handbohrmaschine zum Einbringen einer laenglich ausgebildeten Fixierhilfe unter sterilen Bedingungen in einen Knochen oder in Knochenteile (2004)

Braun, M., Plenzig, S., Hoffmann, J., Levermann, A.

DE 19955026 A UPAB: 20011031 NOVELTY - The hand drill has a drive shaft (3) driven by electric motor drive unit (2) within a sealed housing (1) and coupled to a drill wire chuck (9), rotating about...

Ordered Landmarks in Planning (2004)

Hoffmann, J., Porteous, J., Sebastia, L.

Many known planning tasks have inherent constraints concerning the best order in which to achieve the goals. A number of research efforts have been made to detect such constraints and to use them for...

Ordered Landmarks in Planning (2004)

Hoffmann, J., Porteous, J., Sebastia, L.

Many known planning tasks have inherent constraints concerning the best order in which to achieve the goals. A number of research efforts have been made to detect such constraints and to use them for...

Inverse modeling of interbed storage parameters using land subsidence observations, Antelope Valley, California (2003)

Hoffmann, J., Galloway, D. L., Zebker, H. A.

Land subsidence above subsurface reservoirs has been observed in many locations all over the world. The observed surface displacements accompany reservoir pressure changes induced by the resource...

Validation of Concepts for Improved Occupant Crash Safety in Helicopters (2003)

Johnson, A., Lützenburger, M., Hoffmann, J., Steeger, B.

Helicopter occupant crash safety investigations are being carried out in the frame of a European consortium project 'HeliSafe', which aims to improve the survivability of occupants in helicopter...

Arzneimittelversand: Risiken, Nebenwirkungen oder viele Chancen (2003)

Wagner, M., Hoffmann, J.

Die Distribution von Arzneimitteln zu privaten Endverbrauchern steht in Deutschland vor einem radikalen Wandel. Um den stetig steigenden Ausgaben für Arzneimittel in der Gesetzlichen...

Moderne Analytik an ausgewählten Beispielen. (2003)

Hoffmann, J.

Nachrichten - Forschungszentrum Karlsruhe, 35(2003) S.165-66

Ansaugvorrichtung fuer Verbrennungsluft (2002)

Linsbauer, P., Erath, J., Hoffmann, J., Naegele, U., Sponner, H.

DE 10128789 A UPAB: 20030218 NOVELTY - The intake device has elements (12) on the side of the contaminated air chamber (14) of the air filter (5), to remove the dust (11) separated from the...

On the Extraction, Ordering, and Usage of Landmarks in Planning (2001)

Porteous, J., Sebastia, L., Hoffmann, J.

Many known planning tasks have inherent constraints concerning the best order in which to achieve the goals. A number of research efforts have been made to detect such constraints and use them for...

Pharmacodynamics and safety of lefradafiban, an oral platelet glycoprotein IIb/IIIa receptor antagonist, in patients with stable coronary artery disease undergoing elective angioplasty (2001)

Akkerhuis, K.M., Simoons, M.L., Zwaan, C. Van Der, Peels, H.O., Suryapranata, H., ...

OBJECTIVE: Lefradafiban is the orally active prodrug of fradafiban, a glycoprotein IIb/IIIa receptor antagonist. The present phase II study aimed to determine the dose of lefradafiban that provides...

Virtuelle Unternehmen. Chancen und Risiken einer neuen Arbeitsform: Magisterarbeit an der Universität Bonn (2001)

Hoffmann, J.

Virtual enterprises are generally understood as alliances between companies which cooperate on a specific project for a limited period of time and often in different places. After the termination of...

Produktqualität optimieren durch Prozess-Engineering - Wertschöpfung in der Fertigungskette erhöhen (2001)

Demmel, J., Hoffmann, J., Gonzalez Rechea, P.

In order to respond to the present market demand optimised products are a key for success. However without steady manufacturing processes in order to reach a high productivity and low costs this...

Integration of assembly requirements in early stages of product planning (2001)

Berger, S., Hoffmann, J.

Ziel dieses von der TEG und dem IPA gemeinsam in Shenzhen, China, durchgeführten Projektes war die Optimierung der Produktplanungs- und -entwicklungsprozesses hinsichtlich des späteren Fertigungs-...

Virtuelle Unternehmen. Chancen und Risiken einer neuen Arbeitsform: Magisterarbeit an der Universität Bonn (2001)

Hoffmann, J.

Virtual enterprises are generally understood as alliances between companies which cooperate on a specific project for a limited period of time and often in different places. After the termination of...

On the Extraction, Ordering, and Usage of Landmarks in Planning (2001)

Porteous, J., Sebastia, L., Hoffmann, J.

Many known planning tasks have inherent constraints concerning the best order in which to achieve the goals. A number of research efforts have been made to detect such constraints and use them for...

On the Extraction, Ordering, and Usage of Landmarks in Planning (2001)

Porteous, J., Sebastia, L., Hoffmann, J.

Many known planning tasks have inherent constraints concerning the best order in which to achieve the goals. A number of research efforts have been made to detect such constraints and use them for...

Safety and preliminary efficacy of one month glycoprotein IIb/IIIa inhibition with lefradafiban in patients with acute coronary syndromes without ST-elevation (2000)

Akkerhuis, K.M., Neuhaus, K-L., Wilcox, R.G., Vahanian, A., Boland, J-L., Hoffmann, J., ...

AIMS: Oral glycoprotein IIb/IIIa inhibitors might enhance the early benefit of an intravenous agent and prevent subsequent cardiac events in patients with acute coronary syndromes. We assessed the...

Charakterisierung dünner Ferromagneten mit Hilfe der Barkhausenrausch-Mikroskopie (2000)

Altpeter, I., Hoffmann, J., Kopp, M., Grimm, H., Nichtl-Pecher, W.

Ferro-magnetic materials are extremely important in the recording of data and are manufactured in the form of thin coatings on data carriers or in the read-write heads of data storage instruments....

Non-Destructive Characterization of Ferromagnetic Layers and Laser Systems (2000)

Meyendorf, N., Altpeter, I., Netzelmann, U., Rösner, H., Hoffmann, J.

Ferromagnetic layers and layer systems are of extraordinary interest for sensor and actuator applications as well as for new microeletronic storage media and electronic components. This article...

Strategic Product Family Development by Extending the House of Quality (2000)

Hoffmann, J., Berger, S.

Frequently, the market demands products provided with equal or similar functionality, that should be available for different customer groups. This market behaviour appears e.g. in the image...

Nondestructive Characterization of Corrosion Protective Coatings on Aluminum Alloy Substrates (2000)

Hoffmann, J., Sathish, S., Khobaib, M., Meyendorf, N., Netzelmann, U., Matikas, T.

This paper describes the initial phase of the development of a nondestructive, multisensor approach for detecting, quantifying and monitoring degradation of organic coatings applied ot aluminum...

Microscopic Techniques for Characterization of Magnetic Layers (2000)

Meyendorf, N., Altpeter, I., Netzelmann, U., Hoffmann, J., Nichtl-Pecher, W., Grimm, H., ...

In recent years increasing interest in magnetic materials especially amorphous and nanocrystalline layers has arised. Due to the magnetostrictive and magnetoresistive properties magnetic materials...

Thermisch isolierendes Bauelement (2000)

Froehlich, K., Plenzig, S., Sedlbauer, K., Hoffmann, J., Koenig, N., Wichtler, A.

The thermal insulation, for insertion into the joints (3) of load-bearing brickwork, is an insulation body (4) at least partially of an insulation material which can resist push and pull forces. The...

Prevention of recurrent ventricular fibrillation by ventricular rate stabilization (2000)

Grimm, W., Hoffmann, J., Menz, V., Maisch, B.

This report describes a post-infarct patient with recurrent ventricular fibrillation in the absence of acute ischaemia, in whom arrhythmia recurrences could be prevented by ventricular rate...

Safety and preliminary efficacy of one month glycoprotein IIb/IIIa inhibition with lefradafiban in patients with acute coronary syndromes without ST-elevation A phase II study (2000)

Akkerhuis, K. M., Wilcox, R. G., Vahanian, A., Hoffmann, J., ...

Aims Oral glycoprotein IIb/IIIa inhibitors might enhance the early benefit of an intravenous agent and prevent subsequent cardiac events in patients with acute coronary syndromes. We assessed the...

Sequence and analysis of chromosome 4 of the plant Arabidopsis thaliana (1999)

Schüller, C, Wambutt, R, Murphy, G, Pohl, T, ...

The higher plant Arabidopsis thaliana (Arabidopsis) is an important model for identifying plant genes and determining their function. To assist biological investigations and to define chromosome...

Totaler Durchblick. Project Monitoring als Steuerungswerkzeug für die Produktentwicklung (1999)

Seng, T., Hoffmann, J., Krüger, C.

Die Stuttgarter Fraunhofer Technologie-Entwicklungsgruppe (TEG) hat ein Managementsystem für Produktentstehungsprozesse entwickelt. Die Vorteile des Project Monitoring genannten Verfahrens: Es...

Project monitoring (1999)

Hoffmann, J., Seng, T.J.

Die Stuttgarter Fraunhofer Technologie-Entwicklungsgruppe (TEG) hat eine Managementsystem für Produktentstehungsprozesse konzipiert, das demnächst bei einem weltweit agierenden Zulieferer eines...

Project Monitoring (1999)

Haase, J., Hoffmann, J., Seng, T.

Von den Automobilherstellern werden Forderungen an die Zulieferer gestellt immer schneller zum fertigen Produkt zu kommen und immer weitreichendere Leistungen zu übernehmen. Daraus ergibt sich die...

Charakterisierung von Struktur und Eigenschaften ferromagnetischer Schichten als Voraussetzung für die Optimierung und Weiterentwicklung von Systemen zur Datenaufzeichnung (1999)

Altpeter, I., Bender, J., Hoffmann, J., Kopp, M., Nichtl-Pecher, W.

Die Leistungsfähigkeit der entwickelten Barkhausenrauschmikroskopie wurde an einer Reihe dünner bzw. ultradünner Schichten (Sendust, Sofmax, NiFe, NiFeX), wie sie in magnetinduktiven bzw....

Verfahren zur Herstellung eines Gewindeeinsatzes in einem Bauteil, vorzugsweise fuer hochbelastete Schraubenverbindungen (1998)

Sinhoff, V., Hoffmann, J.

The method concerns production of a thread insert (5) with an internal (7) in a component (1) provided with an internal thread (2) or a similar feature. The method is characterised by the following...

QFD - Aufwand, der sich rechnet: Der Einsatz von QFD bei der Software-Entwicklung steigert die Kundenzufriedenheit (1998)

Gerlich, A., Hoffmann, J., Senfelds, M.

The use of QFD for the development of software increases customer satisfaction. A challenge to systematic software development - three versions of programs for different customer segments should be...

Project monitoring (1998)

Seng, T., Knapp, C., Hoffmann, J.

Punctuality, quality and low prices are demands which can only be fulfilled if the process of product development is also exactly planned, monitored and controlled. But it is precisely smaller and...

Neue Technologien verdrängen konventionelle Produkte - Der Wettlauf um die Märkte (1998)

Hoffmann, J., Levermann, A., Plenzig, S.

Transistoren ersetzen die herkömmliche Röhrentechnik, CD-ROM und Minidisk die konventionelle Vinylscheibe - vielen Unternehmen brechen aufgrund neuer Trends und Technologien sukzessive...

Gemeinsam zum Erfolg: Ein QFD-orientierter Ansatz zur Verbesserung der Schnittstellen zwischen Marketing und Produktentwicklung (1998)

Plenzig, S., Hoffmann, J., Schäfer-Kunz, J.

A QFD-orientated approach to improve relationships between marketing and product development. In business practice, repeated difficulties arise in communications between marketing and product...

Detection of Residual Stresses and Nodular Growth in Thin Ferromagnetic Layers with Barkhausen and Acoustic Microscopy (1998)

Altpeter, I., Dobmann, G., Meyendorf, N., Fassbender, S., Hoffmann, J., Nichtl-Pecher, W., ...

The measurements described here showed that Barkhausen microscopy allows qualitative and quantitative determination of residual stresses in ferromagnetic thin layers. Moreover, the BEMI enables fast...

Charakterisierung ferromagnetisch dünner Schichten mit Hilfe der Barkhausenrausch-Mikroskopie (1998)

Altpeter, I., Hoffmann, J., Nichtl-Pecher, W., Grimm, H.

Mit dem BEMI steht ein empfindliches Werkzeug für die Entwicklung und Herstellung neuer magnetischer Werkstoffe zur Verfügung, mit dem es möglich ist, die Prozeßbedingungen für die Herstellung...

Barkhausen- und Wirbelstrommikroskopie zur Werkstoffcharakterisierung und Eigenspannungsmessungen im Mikrometerbereich (1998)

Altpeter, I., Bender, J., Hoffmann, J., Kopp, M.

In der Werkstoffentwicklung werden zunehmend höhere Anforderungen an die laterale Auflösung und an quantitative Prüfaussagen gestellt. Von besonderem Interesse sind hier Gefügecharakterisierung,...

Die Barkhausen- und Wirbelstrommikroskopie, eine neue Rastersondentechnik zur Werkstoffcharakterisierung im Mikrometerbereich (1998)

Altpeter, I., Bender, J., Hoffmann, J., Kopp, M.

In der Werkstoffentwicklung werden zunehmend höhere Anforderungen an die laterale Auflösung und an quantitative Prüfaussagen gestellt. Von besonderem Interesse sind hier Gefügecharakterisierung,...

Entwicklung eines QFD-gestützten Verfahrens zur Produktplanung und -entwicklung für kleine und mittlere Unternehmen (1997)

Hoffmann, J.

Ziel dieser Arbeit ist es, für kleine und mittlere Unterneinmen (KMU) ein auf Quality Function Deployment (QFD) basierendes Verfahren zu entwickein und zu erproben, urn KMU ein Werkzeug zur...

Vorgehen bei Rationalisierungsprojekten. Neue Managementkonzepte erfordern ganzheitliches Vorgehen (1997)

Schäfer-Kunz, J., Hoffmann, J.

Erhebliche Nachfrageeinbrüche verstärken zur Zeit in vielen Branchen immens den Wettbewerbsdruck, Folge sind eine Häufung von Unternehmenszusammenbrüchen. Unternehmen solcher Branchen müssen...

Verkettungssystem: Werkstuecktraeger-Positioniervorrichtung (A1) (1997)

Egner, H., Hoffmann, J.

The description refers to a workpiece fixture positioning device, in particular for a machining station. The positioning device according to the invention has the following features: - At least one...

Barkhausenrausch- und Wirbelstrommikroskopie zur Werkstoffcharakterisierung und Eigenspannungsmessung im Mikrometer-Bereich (1997)

Altpeter, I., Bender, J., Hoffmann, J., Kopp, M., Rouget, D., Schreiber, J.

Am Fraunhofer-Institut für zerstörungsfreie Prüfverfahren wurde ein Barkhausenrausch- und Wirbelstrommikorskop aufgebaut und erprobt. Durch eine geeignete hochauflösende Sensorik, die in...

Barkhausen-Effect and Eddy Current Testing for the Characterization of the Microstructure and Residual Stress States with Local Resolution (1997)

Hoffmann, J., Rouget, D., Altpeter, I., Bender, J., Kopp, M.

The IZFP has developed a microscope based on micromagnetic and eddy-current techniques. By using miniaturized inductive transducers with some tenths of a µm slit width, speciments are scanned in...

Características climáticas del océano Atlántico sudoccidental (1997)

Hoffmann, J., Núñez, M., Piccolo, M.C.

The climate of the SW Atlantic Ocean is described for representative summer and winter months. The description is based on mean fields of surface and upperair metereological measurements. Maps and...

Syncope recurrence can better be predicted by history than by head-up tilt testing in untreated patients with suspected neurally mediated syncope (1997)

Grimm, W., Degenhardt, M., Hoffmann, J., Menz, V., Wirths, A., Maisch, B.

Background Head-up tilt testing is widely used in the evaluation of patients with suspected neurally mediated syncope. Although it remains unclear which patients require medical therapy to prevent...

Markterfolg sicherstellen. Kostenorientiertes Entwickeln durch Zielkostenintegration in der Entwurfsphase (1996)

Hoffmann, J., Huber, M., Sindram, P.

Das Unternehmensrisiko läßt sich durch präventive Qualitätssicherung mittels frühzeitiger Kostenbeeinflussung durch marktorientierte Kostenplanung deutlich senken. Erreichbar wird dies durch...

Effects of impurity atoms and molecules on the lifetime of antiprotonic helium atoms (1995)

Widmann, E, Sugai, I, Yamazaki, T, Hayano, R S, Iwasaki, M, Nakamura, S N, ...

Delayed annihilation time spectra of antiprotons (DATS) in room temperature helium gas have been studied as a function of the concentration of admixed noble gases (Ne, Ar, Kr, Xe) as well as...

QFD-Einsatz in der Praxis: Nutzen auch für kleine und mittelständische Unternehmen (1995)

Egner, H., Hoffmann, J.

Practical Application of QFD. Benefits also for small and medium-sized companies. Quality Function Deployment (QFD) has been used increasingly since the eighties in German-speaking countries. Small...

Methodengestützt planen und entwickeln: Voraussetzungen und Anforderungen an kleine und mittelständische Unternehmen für den praktischen Einsatz des Quality Function Deployment (1995)

Egner, H., Hoffmann, J., Martinetz, H.

The use of Quality Function Deployment (QFD) is becoming increasingly widespread in product planning and development also among small and medium-sized producers. Reference material is available in...

Factorization Theory For Stable, Discrete-Time Inner Functions (1995)

P. A. Fuhrmann, J. Hoffmann

We develop a factorization theory for stable inner functions relative to the unit circle. paf/hoffmann/klhinner Earl Katz Family Chair in Algebraic System Theory y Partially supported by GIF under...

On Balanced Realizations of Bounded Real and Positive Real Functions (1995)

J. Hoffmann, P. A. Fuhrmann

Based on normalized coprime factorizations with respect to indefinite metrics and the construction of suitable characteristic functions, the Ober balanced canonical forms for the classes of bounded...

Remarks on Orthogonal Polynomials and Balanced Realizations (1995)

J. Hoffmann, P. A. Fuhrmann

Given a proper antistable rational transfer function g, a balanced realization of g is constructed as a matrix representation of the abstract shift realization introduced in Fuhrmann [1976]. The...

Environmental policy in Germany. The tasks of the Karlsruhe Research Center. (1995)

Popp, M., Hoffmann, J.

Chinese and German Environmental Protection Technology Symp., Taipei, Taiwan, October 3-6, 1995

Großforschung und Industrie - Leitprojekte als neue Kooperationsform. (1995)

Popp, M., Hoffmann, J.

Nachrichten - Forschungszentrum Karlsruhe, 27(1995) S.195-201

A large aerosol chamber for investigating heterogeneous chemistry of the atmosphere. (1994)

Bunz, H., Hoffmann, J., Koyro, M., Lindner, W., Möhler, O., Naumann, K.H., ...

6th European Symp.'Physico-Chemical Behaviour of Atmospheric Pollutants' Varese, I, October 18-22, 1993

Algebraic Aspects of Controllability for AR-Systems (1993)

J. Hoffmann

This paper examines some aspects of controllability for behaviour systems in AR-representation. The approach is based on the theory of dipolynomial modules and dipolynomial matrices. Explicit...

Vorrichtung zum Verformen von Werkstuecken aus thermoplastischen Kunststoffen (1992)

Froehlich, S., Hoffmann, J., Egner, H.

The description refers to a flexible heating core (1) for the performance of a process by which the amount of heat required for deformation is applied from the inside to the workpiece to be deformed....

Calibration of fog water collectors. (1992)

Hoffmann, J., Metzig, G.

Proc.of the 1991 European Aerosol Conf., Karlsruhe, September 16-20, 1991

Dynamical behaviour of polydisperse aerosol particles in a smog chamber. (1992)

Hoffmann, J., Bunz, H., Schoeck, W.

Proc.of the European Aerosol Conf., Oxford, GB, September 7-11, 1992

PHASE TRANSFORMATIONS OF SUPERSATURED SPUTTERED Nb Co FILMS (1990)

Biegel, W., Schaper, W., Hoffmann, J., Freyhardt, H., Busch, R., ...

Supersaturated NbCo thin films were prepared in the concentration range 4 -15 at.% Co by triode co-sputtering. Based on thermodynamic calculations (CALPHAD) for the Nb-Co system, we expect during...

PHASE TRANSFORMATIONS OF SUPERSATURED SPUTTERED Nb Co FILMS (1990)

Biegel, W., Schaper, W., Hoffmann, J., Freyhardt, H., Busch, R., ...

Supersaturated NbCo thin films were prepared in the concentration range 4 -15 at.% Co by triode co-sputtering. Based on thermodynamic calculations (CALPHAD) for the Nb-Co system, we expect during...

PHASE TRANSFORMATIONS OF SUPERSATURED SPUTTERED Nb Co FILMS (1990)

Biegel, W., Schaper, W., Hoffmann, J., Freyhardt, H., Busch, R., ...

Supersaturated NbCo thin films were prepared in the concentration range 4 -15 at.% Co by triode co-sputtering. Based on thermodynamic calculations (CALPHAD) for the Nb-Co system, we expect during...

Les faisceaux du VIVITRON (1988)

Nadji, A., Haas, F., Heng, G., Hoffmann, J., Muller, Ch., Rebmeister, R.

Dans le VIVITRON, il est prévu d'accélérer une cinquantaine de faisceaux de nature différente et d'énergie variable pouvant atteindre 20 MeV/n pour les ions lourds « légers » et 5 MeV/n pour...

Les faisceaux du VIVITRON (1988)

Nadji, A., Haas, F., Heng, G., Hoffmann, J., Muller, Ch., Rebmeister, R.

Dans le VIVITRON, il est prévu d'accélérer une cinquantaine de faisceaux de nature différente et d'énergie variable pouvant atteindre 20 MeV/n pour les ions lourds « légers » et 5 MeV/n pour...

Les faisceaux du VIVITRON (1988)

Nadji, A., Haas, F., Heng, G., Hoffmann, J., Muller, Ch., Rebmeister, R.

Dans le VIVITRON, il est prévu d'accélérer une cinquantaine de faisceaux de nature différente et d'énergie variable pouvant atteindre 20 MeV/n pour les ions lourds « légers » et 5 MeV/n pour...

Les faisceaux du VIVITRON (1988)

Nadji, A., Haas, F., Heng, G., Hoffmann, J., Muller, Ch., Rebmeister, R.

Dans le VIVITRON, il est prévu d'accélérer une cinquantaine de faisceaux de nature différente et d'énergie variable pouvant atteindre 20 MeV/n pour les ions lourds « légers » et 5 MeV/n pour...

Zur lehre von der tetanie ... (1888)

Hoffmann, J.

Habilitationsschrift--Heidelberg.

Subcellular distribution of epothilones in human tumor cells

Lichtner, R. B., Rotgeri, A., Bunte, T., Buchmann, B., Hoffmann, J., Schwede, W., ...

Epothilones are a new class of natural and potent antineoplastic agents that stabilize microtubules. Although 12,13-epoxide derivatives are potent antiproliferative agents, the activities of the...

Insect immunity: isolation from immune blood of the dipteran Phormia terranovae of two insect antibacterial peptides with sequence homology to rabbit lung macrophage bactericidal peptides.

Lambert, J, Keppi, E, Dimarcq, J L, Wicker, C, Reichhart, J M, Dunbar, B, ...

We have isolated from the hemolymph of immunized larvae of the dipteran insect Phormia terranovae two peptides that are selectively active against Gram-positive bacteria. They are positively charged...

Co-ordinated changes in the cyclic AMP signalling system and the phosphorylation of two nuclear proteins of Mr 130,000 and 110,000 during proliferative stimulation of the rat parotid gland by isoprenaline. Possible identity of the two proteins with pp135 and nucleolin.

Hoffmann, J, Schwoch, G

Parotid glands were stimulated to growth by repeated injection of the beta-agonist isoprenaline into rats. Incubation of intact parotid-gland lobules with [32P]Pi and subsequent analysis of nuclear...

Parietal cell vagotomy. A 23-year study.

Meisner, S, Hoffmann, J, Jensen, H E

OBJECTIVE: The authors studied the long-term ulcer recurrence rate after elective parietal cell vagotomy (PCV) for duodenal, pyloric, or prepyloric ulcers. SUMMARY BACKGROUND DATA: Recurrent...

Unsuccessful experience with closure of Jaboulay gastroduodenostomies in the treatment of post-vagotomy dumping and diarrhea.

Hoffmann, J, Fischer, A, Jensen, H E

Eight patients after vagotomy and Jaboulay gastroduodenostomy had their gastroduodenostomy closed to treat dumping and diarrhea. Eight gastroduodenostomies were closed once and four were closed...

Parietal cell vagotomy as an emergency procedure for bleeding peptic ulcer.

Hoffmann, J, Devantier, A, Koelle, T, Jensen, H E

Twenty-three selected patients presenting with massive bleeding from peptic ulcers underwent emergency parietal cell vagotomy (PCV). Nineteen patients had a duodenal ulcer, two a prepyloric ulcer,...

Prospective controlled vagotomy trial for duodenal ulcer. Results after 11-15 years.

Hoffmann, J, Jensen, H E, Christiansen, J, Olesen, A, Loud, F B, Hauch, O

A prospective, randomized, controlled trial was conducted to compare truncal vagotomy and drainage (TV), selective vagotomy and drainage (SV) and parietal cell vagotomy (PCV) as elective treatment...

pitkin(D), a novel gain-of-function enhancer of position-effect variegation, affects chromatin regulation during oogenesis and early embryogenesis in Drosophila.

Kuhfittig, S, Szabad, J, Schotta, G, Hoffmann, J, Máthé, E, Reuter, G

The vast majority of the >100 modifier genes of position-effect variegation (PEV) in Drosophila have been identified genetically as haplo-insufficient loci. Here, we describe pitkin(Dominant)...

Subcellular distribution of epothilones in human tumor cells

Lichtner, R. B., Rotgeri, A., Bunte, T., Buchmann, B., Hoffmann, J., Schwede, W., ...

Epothilones are a new class of natural and potent antineoplastic agents that stabilize microtubules. Although 12,13-epoxide derivatives are potent antiproliferative agents, the activities of the...

Insect immunity: isolation from immune blood of the dipteran Phormia terranovae of two insect antibacterial peptides with sequence homology to rabbit lung macrophage bactericidal peptides.

Lambert, J, Keppi, E, Dimarcq, J L, Wicker, C, Reichhart, J M, Dunbar, B, ...

We have isolated from the hemolymph of immunized larvae of the dipteran insect Phormia terranovae two peptides that are selectively active against Gram-positive bacteria. They are positively charged...

Co-ordinated changes in the cyclic AMP signalling system and the phosphorylation of two nuclear proteins of Mr 130,000 and 110,000 during proliferative stimulation of the rat parotid gland by isoprenaline. Possible identity of the two proteins with pp135 and nucleolin.

Hoffmann, J, Schwoch, G

Parotid glands were stimulated to growth by repeated injection of the beta-agonist isoprenaline into rats. Incubation of intact parotid-gland lobules with [32P]Pi and subsequent analysis of nuclear...

Parietal cell vagotomy. A 23-year study.

Meisner, S, Hoffmann, J, Jensen, H E

OBJECTIVE: The authors studied the long-term ulcer recurrence rate after elective parietal cell vagotomy (PCV) for duodenal, pyloric, or prepyloric ulcers. SUMMARY BACKGROUND DATA: Recurrent...

Unsuccessful experience with closure of Jaboulay gastroduodenostomies in the treatment of post-vagotomy dumping and diarrhea.

Hoffmann, J, Fischer, A, Jensen, H E

Eight patients after vagotomy and Jaboulay gastroduodenostomy had their gastroduodenostomy closed to treat dumping and diarrhea. Eight gastroduodenostomies were closed once and four were closed...

pitkin(D), a novel gain-of-function enhancer of position-effect variegation, affects chromatin regulation during oogenesis and early embryogenesis in Drosophila.

Kuhfittig, S, Szabad, J, Schotta, G, Hoffmann, J, Máthé, E, Reuter, G

The vast majority of the >100 modifier genes of position-effect variegation (PEV) in Drosophila have been identified genetically as haplo-insufficient loci. Here, we describe pitkin(Dominant)...

Parietal cell vagotomy as an emergency procedure for bleeding peptic ulcer.

Hoffmann, J, Devantier, A, Koelle, T, Jensen, H E

Twenty-three selected patients presenting with massive bleeding from peptic ulcers underwent emergency parietal cell vagotomy (PCV). Nineteen patients had a duodenal ulcer, two a prepyloric ulcer,...

Prospective controlled vagotomy trial for duodenal ulcer. Results after 11-15 years.

Hoffmann, J, Jensen, H E, Christiansen, J, Olesen, A, Loud, F B, Hauch, O

A prospective, randomized, controlled trial was conducted to compare truncal vagotomy and drainage (TV), selective vagotomy and drainage (SV) and parietal cell vagotomy (PCV) as elective treatment...

Initiation and perpetuation of rat adjuvant arthritis is inhibited by the anti-CD2 monoclonal antibody (mAb) OX34

Hoffmann, J., Herklotz, C., Zeidler, H., Bayer, B., Rosenthal, H., Westermann, J.

OBJECTIVE—The purpose of this study was to investigate the therapeutic potential of the anti-CD2 mAb OX34 first with regard to bone protection in established rat adjuvant arthritis (AA) and...

Induction of TFF1 gene expression in pancreas overexpressing transforming growth factor α

Ebert, M, Hoffmann, J, Haeckel, C, Rutkowski, K, Schmid, R, Wagner, M, ...

BACKGROUND/AIMS—Chronic pancreatitis is an inflammatory disease of the exocrine pancreas associated with extensive fibrosis, enlarged pancreatic ducts, acinar cell degeneration, and the formation...

Role of T lymphocytes in rat 2,4,6-trinitrobenzene sulphonic acid (TNBS) induced colitis: increased mortality after γδ T cell depletion and no effect of αβ T cell depletion

Hoffmann, J, Peters, K, Henschke, S, Herrmann, B, Pfister, K, Westermann, J, ...

BACKGROUND AND AIM—Indirect evidence suggests that CD4+ T cells have a pathogenic while γδ T cells have a protective role in the initiation and perpetuation of inflammatory bowel disease. To...

Pharmacodynamics and safety of lefradafiban, an oral platelet glycoprotein IIb/IIIa receptor antagonist, in patients with stable coronary artery disease undergoing elective angioplasty

Akkerhuis, K, Peels, H, Suryapranata, H, Van Der Wieken, L R, ...

OBJECTIVE—Lefradafiban is the orally active prodrug of fradafiban, a glycoprotein IIb/IIIa receptor antagonist. The present phase II study aimed to determine the dose of lefradafiban that provides...

Heart rate variability and baroreflex sensitivity in idiopathic dilated cardiomyopathy

Hoffmann, J, Grimm, W, Menz, V, Muller, H, Maisch, B

OBJECTIVE—To examine the relation between cardiac autonomic tone, assessed by baroreflex sensitivity and heart rate variability, and left ventricular function, arrhythmias on Holter monitoring, and...

Solution structure of drosomycin, the first inducible antifungal protein from insects.

Landon, C., Sodano, P., Hetru, C., Hoffmann, J., Ptak, M.

Drosomycin is the first antifungal protein characterized recently among the broad family of inducible peptides and proteins produced by insects to respond to bacterial or septic injuries. It is a...

Polaron melting and ordering as key mechanisms for colossal resistance effects in manganites

Jooss, Ch., Wu, L., Beetz, T., Klie, R. F., Beleggia, M., Schofield, M. A., ...

Polarons, the combined motion of electrons in a cloth of their lattice distortions, are a key transport feature in doped manganites. To develop a profound understanding of the colossal resistance...

Expression of carbonic anhydrase 9 at the invasion front of gastric cancers

Chen, J, Röcken, C, Hoffmann, J, Krüger, S, Lendeckel, U, Rocco, A, ...

Background: Carbonic anhydrase IX (MN/Ca9) catalyses the reversible metabolism of carbon dioxide to carbonic acid and has also been linked to malignant transformation and hypoxia in various cancers.

Price Setting in the Euro Area: Some Stylized Facts from Individual Consumer Price Data.

Álvarez, L., Dias, D., Dhyne, E., Hoffmann, J., Jonker, N., Le Bihan, H., ...

This paper documents patterns of price setting at the retail level in the euro area. A set of stylized facts on the frequency and size of price changes is presented along with an econometric...

Switch from antagonist to agonist of the androgen receptor blocker bicalutamide is associated with prostate tumour progression in a new model system

Culig, Z, Hoffmann, J, Erdel, M, Eder, I E, Hobisch, A, Hittmair, A, ...

Advanced prostate cancer is treated by androgen ablation and/or androgen receptor (AR) antagonists. In order to investigate the mechanisms relevant to the development of therapy-resistant tumours, we...