TY  - JOUR
A1  - Gebhardt, Andreas
A1  - Pflug, T-K.
T1  - Innovationsschub mittels Rapid-Prototyping. Teil I
JF  - CAD-CAM Report. 14 (1995), H. 7
Y1  - 1995
SN  - 0930-7117
SP  - 56
EP  - 65
ER  - 
TY  - JOUR
A1  - Gebhardt, Andreas
A1  - Mathar, W.
A1  - Plum, H.-D.
T1  - SFM-System Stereolithographie und selektives Lasersintern im Vergleich
Y1  - 1994
N1  - Konferenz-Einzelbericht : Solid freeform manufacturing/Intelligente Produktionssysteme,  Internationale Konferenz, Dresden, DE, 29.-30.9.1994
SP  - 85
EP  - 95
ER  - 
TY  - JOUR
A1  - Gebhardt, Andreas
A1  - Mathar, W.
A1  - Plum, H-D.
A1  - Wolf, M.
T1  - Serienqualität und -stückzahlen durch Abformprozesse
Y1  - 1996
N1  - Konferenz-Einzelbericht : Produkt- und Prozeßentwicklung mit neuen Technologien, Intelligente  Produktionssysteme - Solid Freeform Manufacturing, 4. Anwendertagung,  Dresden, DE, 25.-26.09.1996
SP  - 147
EP  - 159
ER  - 
TY  - JOUR
A1  - Gebhardt, Andreas
A1  - Mathar, W.
T1  - Auftragsabwicklung und branchenspezifische Anforderungen an SFM-Modelle -am Beispiel medizinischer Modelle
Y1  - 1994
N1  - Konferenz-Einzelbericht : CAT '94, Computer Aided Technol., 10. Int. Fachmesse mit  Anwenderkongress und QUALITY '94, Quality Syst. Technol., 5. Int.  Fachmesse und Kongress, Stuttgart, DE, 17.-20. Mai, 1994
SP  - 188
EP  - 191
ER  - 
TY  - JOUR
A1  - Gebhardt, Andreas
A1  - Hötter, Jan-Steffen
A1  - Ziebura, Dawid
T1  - Impact of SLM build parameters on the surface quality
JF  - RTejournal - Forum für Rapid Technologien
Y1  - 2014
SN  - 1614-0923
VL  - 11 (2014)
IS  - 1
SP  - 1
EP  - 14
ER  - 
TY  - JOUR
A1  - Gebhardt, Andreas
A1  - Guntermann, P.
A1  - Saur, G.
A1  - Gartzen, Johannes
T1  - Neue Impulse für den Leichtbau. Ein Konstruktionsprinzip für Verbauplatten mit Laserschweißen am verdeckten Stoß.
JF  - Laser-Praxis (1996)
Y1  - 1996
SN  - 0937-7069
SP  - 21
EP  - 24
ER  - 
TY  - JOUR
A1  - Gebhardt, Andreas
A1  - Guntermann, P.
A1  - Häming, L.
T1  - Schweißen mit dem Nd:YAG-Laser
JF  - Der Praktiker, Schweißen und Schneiden. 49 (1997), H. 4
Y1  - 1997
SN  - 0554-9965
SP  - 170
EP  - 172
ER  - 
TY  - JOUR
A1  - Gebhardt, Andreas
A1  - Fateri, Miranda
T1  - 3D printing and its applications
JF  - RTejournal - Forum für Rapid Technologie
N2  - Eine zunehmende Anzahl von Artikeln in Publikumszeitschriften und Journalen rückt die direkte Herstellung von Bauteilen und Figuren immer mehr in das Bewusstsein einer breiten Öffentlichkeit. Leider ergibt sich nur selten ein einigermaßen vollständiges Bild davon, wie und in welchen Lebensbereichen diese Techniken unseren Alltag verändern werden. Das liegt auch daran, dass die meisten Artikel sehr technisch geprägt sind und sich nur punktuell auf Beispiele stützen. Dieser Beitrag geht von den Bedürfnissen der Menschen aus, wie sie z.B. in der Maslow’schen Bedürfnispyramide strukturiert dargestellt sind und unterstreicht dadurch, dass 3D Printing (oder Additive Manufacturing resp. Rapid Prototyping) bereits alle Lebensbereiche erfasst hat und im Begriff ist, viele davon zu revolutionieren.
N2  - An increasing amount of popular articles focus on making models and sculptures by 3D Printing thus making more and more even private users aware of this technology. Unfortunately they mostly draw an incomplete picture of how our daily life will be influenced by this new technology. Often this is caused by a very technical point of view based on not very representative examples. This article focuses on the peoples needs as they have been structured by the so-called Maslow pyramid. Doing so, it underlines that 3D Printing (called Additive Manufacturing or Rapid Prototyping as well) already touches all aspects of life and is about to revolutionize most of them.
Y1  - 2013
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:0009-2-35626
SN  - 1614-0923
VL  - 10
IS  - 1
PB  - Fachhochschule Aachen
CY  - Aachen
ER  - 
TY  - JOUR
A1  - Gebhardt, Andreas
A1  - Fateri, Miranda
T1  - 3D-Drucken und die Anwendungen
JF  - RTejournal - Forum für Rapid Technologie
Y1  - 2014
SN  - 1614-0923
VL  - 11 (2014)
IS  - 1
SP  - 1
EP  - 9
ER  - 
TY  - JOUR
A1  - Gebhardt, Andreas
A1  - Brücker, Christoph
A1  - Schmidt, Frank-Michael
T1  - RP gestützte Herstellung komplexer transparenter Hohlräume für die Strömungsanalyse
N2  - Die Berechnung der Durchströmung von Bauteilen ist gegenüber derjenigen von umströmten Bauteilen deutlich im Hintertreffen. Das liegt vor allem an der fehlenden Verfügbarkeit geeigneter optisch transparenter Modellkanäle für die experimentelle Analyse. Der Beitrag stellt ein Verfahren zur Herstellung transparenter durchströmter Geometrien auf der Basis generativ gefertigter Urmodelle vor. Damit können beliebig komplexe Innenströmungen optisch analysiert werden. Anhand von zwei Beispielen aus der Medizin, der Modellierung der oberen Atemwege und des Bronchialbaums, wird das Verfahren vorgeführt. Der generative Bauprozess mittels 3D-Printing wird beschrieben und die Abformung in transparentem Silikon gezeigt. Schließlich werden beispielhaft der Messaufbau und Ergebnisse der Anwendung vorgestellt. Das Verfahren bildet die Grundlage für die Analyse und Berechnung komplexer Innenströmungen und trägt somit zur Verbesserung zahlreicher technischer Anwendungen bei.
N2  - Unlike the flow around technical products the interior flow is not understood very well. That’s mainly because of a lack of suitable transparent investigation tunnels that are needed to apply optical methods. The paper proposes a procedure to make precise complex hollow structures from a highly transparent material using masters from generative or Rapid Prototyping processes. Taking two examples from the medical field, the upper human airways and the bronchial tree, the entire process is shown. The 3D Printing build process is illustrated as well as the silicon casting process. Finally the measuring equipment is demonstrated and sample results are given. The process establishes the basis for the investigation and calculation of complex interior flow pattern and therefore contributes to a better understanding and consequently improvement of appropriate technical products.
KW  - Rapid prototyping
KW  - Rapid Prototyping
KW  - Strömungsanalyse
KW  - Innenströmung
KW  - Modellkanäle
KW  - 3D-Printing
Y1  - 2005
ER  - 
TY  - JOUR
A1  - Gebhardt, Andreas
A1  - Backes, G.
A1  - kramer, T.
A1  - Kreutz, E.-W. (u.a.)
T1  - Beschichten von Kurbelzapfen mit CO2-Laserstrahlung. Energietechnik
JF  - Maschinenmarkt. 101 (1995), H. 12
Y1  - 1995
SN  - 0341-5775
SP  - 42
EP  - 45
ER  - 
TY  - JOUR
A1  - Gebhardt, Andreas
T1  - Rapid Prototyping : Grundlagen, Verfahren und Einsatzkriterien für die industrielle Praxis
JF  - Konstruieren mit Kunststoffen. - 3. Aufl.
Y1  - 2003
SN  - 3-935065-13-2
N1  - Kap. 7
PB  - Springer -VDI-Verl.
CY  - Düsseldorf
ER  - 
TY  - JOUR
A1  - Gebhardt, Andreas
T1  - Rapid Prototyping and PIV
Y1  - 2001
N1  - Workshop on Industrial Applications of Particle Image Velocimetry <2001, Köln>
ER  - 
TY  - JOUR
A1  - Gebhardt, Andreas
T1  - Laserwelding with fillerwire
JF  - LIA handbook of laser material processing / Laser Institute of America
Y1  - 2001
SN  - 3-540-41770-2
N1  - Chapter 11.2.12
CY  - Orlando, Florida
ER  - 
TY  - JOUR
A1  - Gebhardt, Andreas
T1  - Virtual Reality oder Rapid Prototyping?
JF  - Zeitschrift für die gesamte Wertschöpfungskette Automobilwirtschaft (2002)
Y1  - 2002
ER  - 
TY  - JOUR
A1  - Gebhardt, Andreas
T1  - Vakuumgiessen innerhalb der Produktentstehung
JF  - Form und Werkzeug (2002)
Y1  - 2002
ER  - 
TY  - JOUR
A1  - Gebhardt, Andreas
T1  - Potenziale und Grenzen virtueller Prototypen
Y1  - 2002
N1  - Euroforum Fachtagung Automobil-Zulieferer-Forum Österreich <2002, Wien>
ER  - 
TY  - JOUR
A1  - Gebhardt, Andreas
T1  - Generative Manufacturing of Ceramic Parts "Vision Rapid Prototyping"
N2  - Table of Contents Introduction 1. Generative Manufacturing Processes 2. Classification of Generative Manufacturing Processes 3. Application of Generative Processes on the Fabrication of Ceramic Parts 3.1 Extrusion 3.2 3D-Printing 3.3 Sintering – Laser Sintering 3.4 Layer-Laminate Processes 3.5 Stereolithography (sometimes written: Stereo Lithography) 4. Layer Milling 5. Conclusion - Vision
KW  - Rapid prototyping
KW  - Rapid Technologie
KW  - Rapid Prototyping
Y1  - 2006
ER  - 
TY  - JOUR
A1  - Gebhardt, Andreas
T1  - Grundlagen des Rapid Prototyping: Eine Kurzdarstellung der Rapid Prototyping Verfahren
N2  - Generative Verfahren sind seit etwa 1987 in den USA und seit etwa 1990 in Europa und Deutschland in Form von Rapid Prototyping Verfahren bekannt und haben sich in dieser Zeit von eher als exotisch anzusehenden Modellbauverfahren zu effizienten Werkzeugen für die Beschleunigung der Produktentstehung gewandelt. Mit der Weiterentwicklung der Verfahren und insbesondere der Materialien wird mehr und mehr das Feld der direkten Anwendung der Rapid Technologie zur Fertigung erschlossen. Rapid Technologien werden daher zum Schlüssel für neue Konstruktionssystematiken und Fertigungsstrategien.
N2  - Generative procedures have been known under the term of 'rapid prototyping method' for about 18 years in the USA and about 15 years in Europe and Germany. In this time they changed from what was regarded as being a rather exotic way of model construction procedures to a very efficient and useful instrument for faster product manufacturing. In the course of the further development of the methods, and in particular the materials, the field for direct application of rapid technology opens up for manufacturing. Therefore rapid technologies become the key for new construction systematics and manufacturing strategies.
KW  - Rapid prototyping
KW  - Laserstrahlsintern
KW  - 3D-Printing
KW  - Extrusionsverfahren
KW  - Gießharzwerkzeuge
KW  - Laminat Verfahren
KW  - Lasersintern
KW  - Stereolithographie
KW  - Vakuumgießen
KW  - FLM
KW  - Fused deposition modelling
KW  - Laminated-Object-Manufacturing
Y1  - 2004
ER  - 
TY  - JOUR
A1  - Gebhardt, Andreas
T1  - Rapid Prototyping für metallische Werkstücke: Direkte und indirekte Verfahren
N2  - Die generative Herstellung von Kunststoffbauteilen hat im Gewand des Rapid Prototyping die Produktentwicklung nachhaltig positiv beeinflusst und ist im Begriff als Rapid Manufacturing die Fertigung zu revolutionieren. Je mehr sich die besonderen Eigenschaften generativ gefertigter Kunststoffbauteile herumsprechen, desto lauter wird der Ruf nach Metallbauteilen. Die Entwicklung entsprechender Prozesse läuft auf Hochtouren, kann aber bisher aber erst vereinzelt Erfolge vorweisen. Dabei wären es gerade die Metallbauteile, die ausgestattet mit den besonderen Merkmalen generativ gefertigter Werkstücke, in vielen Branchen einen deutlichen Entwicklungsschub auslösen könnten. Für den potenziellen Anwender ist dabei besonders verwirrend, dass die unterschiedlichsten Ansätze nebeneinander verfolgt werden. Im Folgenden soll daher der Versuche unternommen werden, dieses weite Feld systematisiert darzustellen und Möglichkeiten und Trends zu erläutern.
N2  - The generative manufacturing of plastic components via rapid prototyping has positively affected the product development. As 'rapid manufacturing' the method is about to revolutionize the manufacturing in general. The more the special characteristics of generative manufactured plastic components are getting about, the louder becomes the call for generative manufactured metal components. The development of analogical processes runs on full speed. So far however, only sporadic successes can be registered. Though there are in particular the metal components which could, equipped with the special characteristics of generative manufactured components, initiate a developmental boost in many industries. For the potential operator it is particularly confusing that the different approaches are traced parallel. Therefore in the following contribution the attempt is undertaken not only to represent this wide field in a systematic way but to describe possibilities and trends as well.
KW  - Rapid prototyping
KW  - Rapid Prototyping
KW  - Rapid Manufacturing
KW  - generative Fertigungsverfahren
KW  - Werkzeugeinsätze
KW  - Werkzeuge
KW  - Rapid prototyping
KW  - rapid manufacturing
Y1  - 2005
ER  - 
TY  - JOUR
A1  - Gebhardt, Andreas
T1  - Rapid Manufacturing - eine interdisziplinäre Strategie
N2  - Als um 1987 ein Verfahren namens Stereolithographie und ein Stereolithography Apparatus (SLA) vorgestellt wurden, war der Traum von der Herstellung beliebiger dreidimensionaler Bauteile direkt aus Computerdaten und ohne bauteilspezifische Werkzeuge Realität geworden. Ein Anwendungs-Szenario wurde gleich mitgeliefert. Diese Technologie würde es möglich machen, die gesamte Ersatzteilversorgung der Amerikanischen Pazifikflotte mittels ein paar dieser Maschinen, umfangreicher Datenstätze und genügend Rohmaterial vor Ort auf einem Flugzeugträger direkt nach Bedarf zu fertigen. Diese Vorstellung definierte schon damals die direkte digitale Fertigung, das Rapid Manufacturing. In der Realität bestanden die mit diesem Verfahren hergestellten Bauteile nur aus Kunststoff, waren ungenau, bruchempfindlich und klebrig und allein in der Produktentwicklung, eben als Prototypen zu benutzen. Sie waren schnell verfügbar, weil zu Ihrer Herstellung keine Werkzeuge benötigt wurden. Folgerichtige und zudem modern hießen sie: Rapid Prototyping. Rapid Prototyping wurde schnell zum Synonym eines neuen Zweiges der Fertigungstechnik, der Generativen Fertigungstechnik. Die weitere Entwicklung brachte neue Verfahren, höhere Genauigkeiten, verbesserte Werkstoffe und neue Anwendungen. Die Herstellung von Negativen, also Werkzeugen, mit dem gleichen Verfahren wurde marketing-getrieben Rapid Tooling genannt und als die ersten Bauteile nicht mehr als Prototypen, sondern als Endprodukte eingesetzt wurden, nannte man dies Rapid Manufacturing - das Ziel war erreicht. War das Ziel wirklich erreicht? Ist es Rapid Manufacturing, wenn ein generativ gefertigtes Bauteil die gewünschte Spezifikation erreicht? Was muss passieren, damit aus dem Phänomen Rapid Prototyping eine Strategie wird, die geeignet ist, einen Paradigmenwechsel von der heutigen Hersteller-induzierten Massenproduktion von Massenartikeln zur Verbraucher-induzierten (und verantworteten) Massenproduktion von Einzelteilen für jedermann ermöglichen und möglicherweise unsere Arbeits- und Lebensformen tiefgreifend zu beeinflussen? Im Beitrag wird der Begriff der (Fertigungs-) Strategie „Rapid Manufacturing“ näher beleuchtet. Es wird diskutiert, welche Maßnahmen auf der technischen und der operative Ebene getroffen werden müssen, damit die generative Fertigungstechnik im Sinne dieser Strategie umgesetzt werden kann. Beispiele belegen, dass diese Entwicklung bereits begonnen hat und geben Anregungen für eine konstruktive Diskussion auf der RapidTech 2006.
N2  - As a process called stereolithography and a stereolithography apparatus (SLA) was presented in 1987, the dream of manufacturing any three-dimensional component directly from computer data and without component-specific tools became reality. An application scenario was supplied at the same time. This technology would make it possible to produce the entire spare parts requirement of the American Pacific Fleet merely through the use of a couple of such machines, extensive datasets and enough raw material on board an aircraft carrier directly as required. This image defined direct digital fabrication, rapid manufacturing, even at that time. In reality, this procedure only managed to produce components in plastic which were imprecise, fragile and sticky and only usable as prototypes in product development. They were rapidly available, because no tools were required for their manufacture. Consequentially, they are now known as Rapid Prototyping in modern jargon. Rapid Prototyping quickly became a synonym for a new branch of production engineering known as generative production engineering. Continued development brought new processes, improved accuracy, improved materials and new applications. The manufacturing of negatives, in other words tools, using the same procedure was quickly named rapid tooling by the marketing sector, and once the first components were used as final products instead of just prototypes the process was renamed "rapid manufacturing" - the goal had been reached. Was the goal really reached? Is it rapid manufacturing if a generatively manufactured component reaches the required specifications? What has to happen so that the rapid prototyping phenomenon becomes a strategy which is suitable for enabling the paradigm change from current manufacture-induced mass production of mass articles to consumer-induced (and consumer-responsible) mass production of single parts for anyone, and in all possibility makes dramatic changes in our way of working and living? The lecture includes detailed information about the (production) strategy term "rapid manufacturing". We will be discussing which measures need to be taken on the technical and operative level so that generative production engineering can be implemented in the sense of this strategy. Examples will show that this development has already started, and should provoke stimulation leading to constructive discussion during RapidTech 2006.
KW  - Rapid prototyping
KW  - Rapid Manufacturing
KW  - Rapid Prototyping
KW  - Stereolithographie
KW  - Generative Fertigungstechnik
KW  - Rapid prototyping
KW  - rapid manufacturing
Y1  - 2006
ER  - 
TY  - JOUR
A1  - Gebhardt, Andreas
T1  - Lasereinsatz in der Fertigung der Fahrzeugindustrie. Grundlagen der Anwendung von Lasern zur Materialbearbeitung
Y1  - 1997
N1  - Konferenz-Einzelbericht : Laseranwendungen im Automobilbau, 1. Euroforum-Anwenderkonferenz zum  Lasereinsatz, Nürtingen, DE, 23.-24. Okt, 1997
SP  - 1
EP  - 154
ER  - 
TY  - JOUR
A1  - Gebhardt, Andreas
T1  - Rapid Prototyping - Laser-gestützte Revolution der Produktentwicklung. Teil I
JF  - Laser Magazin (1996)
Y1  - 1996
SN  - 0945-8875
SP  - 6
EP  - 9
ER  - 
TY  - JOUR
A1  - Gebhardt, Andreas
T1  - Härten von Kurbelwellen
Y1  - 1989
N1  - Konferenz-Einzelbericht : Lasertechnik in Nordrhein-Westfalen. Symposium 26.-27.10.1989,  Düsseldorf, D
SP  - 1
EP  - 14
ER  - 
TY  - JOUR
A1  - Gebhardt, Andreas
T1  - Entwicklungstendenzen und neue Systeme im Rapid Prototyping
JF  - Industrie Management. 17 (2001), H. 3
Y1  - 2001
SN  - 1434-1980
SP  - 42
EP  - 46
ER  - 
TY  - JOUR
A1  - Gebhardt, Andreas
T1  - Schnell und flexibel zur Kleinserie. Effizienzsteigerung bei der Realisierung von Komponenten und Teilsystemen
JF  - Ingenieur-Werkstoffe. 8 (1999), H. 3
Y1  - 1999
SN  - 0935-5715
SP  - 8
EP  - 14
ER  - 
TY  - JOUR
A1  - Gebhardt, Andreas
T1  - Marktentwicklung im Rapid Prototyping
JF  - Kunststoffe, München. 89 (1999), H. 11
Y1  - 1999
SN  - 0023-5563
SP  - 50
EP  - 55
ER  - 
TY  - JOUR
A1  - Gebhardt, Andreas
T1  - Materialfrage führt häufig zu Trugschlüssen. Wunsch und Wirklichkeit im Rapid Prototyping - Teil 2
JF  - Industrieanzeiger. 122 (2000), H. 4
Y1  - 2000
SN  - 0019-9036
N1  - Zeitschriftenkurzaufsatz
SP  - 41
EP  - 41
ER  - 
TY  - JOUR
A1  - Gebhardt, Andreas
T1  - Rapid Tooling. Der schnelle Weg zum Spritzgießwerkzeug.
JF  - Kunststoffe, München. 88 (1998), H. 11
Y1  - 1998
SN  - 0023-5563
SP  - 1992
EP  - 2000
ER  - 
TY  - JOUR
A1  - Gebhardt, Andreas
T1  - Aktuelle Trends bei RP und RT
JF  - Kunststoffe, München. 87 (1997), H. 1
Y1  - 1997
SN  - 0023-5563
SP  - 27
EP  - 30
ER  - 
TY  - JOUR
A1  - Gebhardt, Andreas
T1  - Rapid Prototyping
JF  - Landolt-Börnstein - Group VIII Advanced Materials and Technologies‡Vol. 1 Laser Physics and Applications‡Subvol. C  Laser Applications / authors: Bäuerle, D.  ...
Y1  - 2004
SN  - 3-540-00105-0
SP  - 105
EP  - 123
PB  - Heidelberg
CY  - Springer
ER  - 
TY  - JOUR
A1  - Gebhardt, Andreas
T1  - Hype um Generative Verfahren. Generative Verfahren zur Herstellung von Kleinserien durchlaufen die Phase eines Booms
JF  - Economic Engineering (2008)
Y1  - 2008
SN  - 1436-3348
SP  - 76
EP  - 79
ER  - 
TY  - JOUR
A1  - Gebhardt, Andreas
T1  - 3D-Druck ist überall. Modische Accessoires, Kleidung, Medikamente, Nahrungsmittel, Autos, Häuser, Waffen, Büsten, Musikinstrumente - alles geht
JF  - Kunststoffe
Y1  - 2015
SN  - 0023-5563
VL  - 105
IS  - 10
SP  - 62
EP  - 70
PB  - Hanser
CY  - München
ER  - 
TY  - JOUR
A1  - Gebeshuber, Christoph A.
A1  - Kornauth, Christoph
A1  - Dong, Lihua
A1  - Sierig, Ralph
A1  - Seibler, Jost
A1  - Reiss, Martina
A1  - Tauber, Stefanie
A1  - Bilban, Martin
A1  - Wang, Shijun
A1  - Kain, Renate
A1  - Böhmig, Georg A.
A1  - Moeller, Marcus J.
A1  - Gröne, Hermann-Josef
A1  - Englert, Christoph
A1  - Martinez, Javier
A1  - Kerjaschki, Dontscho
T1  - Focal segmental glomerulosclerosis is induced by microRNA-193a and its downregulation of WT1
JF  - Nature Medicine
Y1  - 2013
U6  - https://doi.org/10.1038/nm.3142
SN  - 1078-8956
VL  - 19
IS  - 4
SP  - 481
EP  - 487
ER  - 
TY  - JOUR
A1  - Ge, B.
A1  - Meyer, T.
A1  - Schöning, Michael Josef
A1  - Wollenberger, U.
A1  - Lisdat, F., 
T1  - Cytochrome c‘ from Chromatium vinosum on gold electrodes
JF  - Electrochemistry Communications. 2 (2000), H. 8
Y1  - 2000
SN  - 1388-2481
SP  - 557
EP  - 561
ER  - 
TY  - JOUR
A1  - Gazda, Quentin
A1  - Maurischat, Andreas
T1  - Special functions and Gauss-Thakur sums in higher rank and dimension
Y1  - 2020
PB  - De Gruyter
CY  - Berlin
ER  - 
TY  - JOUR
A1  - Gauchel, Joachim
T1  - Automatisierte Montageanlage im FB8 - Eine lohnende Investition
JF  - FH Fachblatt (2001)
Y1  - 2001
SP  - 12
EP  - 12
ER  - 
TY  - JOUR
A1  - Gauchel, Joachim
T1  - Berechnung von Kurvengetrieben mit Gleitbewegung im Kurvengelenk
JF  - Bewegungstechnik 2008 : Koppelgetriebe, Kurvengetriebe und geregelte Antriebe im Maschinen-, Fahrzeug- und Gerätebau ; Tagung Fulda, 23. und 24. September 2008 / VDI, Entwicklung, Konstruktion, Vertrieb
Y1  - 2008
SN  - 978-3-18-092050-4
N1  - VDI-Berichte ; 2050
SP  - 211
EP  - 226
PB  - VDI-Verl.
CY  - Düsseldorf
ER  - 
TY  - JOUR
A1  - Gasteier, Klaus
T1  - Fiat money : Design und das liebe Geld
JF  - Boxhorn. 11 (2004), H. Inflation
Y1  - 2004
SP  - 28
EP  - 33
ER  - 
TY  - JOUR
A1  - Gasparyan, Ferdinand V.
A1  - Poghossian, Arshak
A1  - Vitusevich, Svetlana A.
A1  - Petrychuk, Mykhaylo V.
A1  - Sydoruk, Viktor A.
A1  - Siqueira, José R. Jr.
A1  - Oliveira, Osvaldo N. Jr.
A1  - Offenhäusser, Andreas
A1  - Schöning, Michael Josef
T1  - Low-Frequency Noise in Field-Effect Devices Functionalized With Dendrimer/Carbon-Nanotube Multilayers
JF  - IEEE Sensors Journal. 11 (2011), H. 1
Y1  - 2011
SN  - 1530-437X
SP  - 142
EP  - 149
PB  - IEEE
CY  - New York
ER  - 
TY  - JOUR
A1  - Gasparyan, F.V.
A1  - Vitusevich, S.A.
A1  - Offenhäusser, A.
A1  - Schöning, Michael Josef
T1  - Modified charge fluctuation noise model for electrolyte-insulator-semiconductor devices
JF  - Modern Physics Letters B (MPLB). 25 (2011), H. 11
Y1  - 2011
SN  - 0217-9849
SP  - 831
EP  - 840
PB  - World Scientific Publ.
CY  - Singapur
ER  - 
TY  - JOUR
A1  - Gasparyan, F. V.
A1  - Poghossian, Arshak
A1  - Vitusevich, S. A.
A1  - Petrychuk, M. V.
A1  - Sydoruk, V. A.
A1  - Surmalyan, A. V.
A1  - Siqueira, J. R.
A1  - Oliveira, O. N.
A1  - Offenhäusser, A.
A1  - Schöning, Michael Josef
T1  - Low Frequency Noise In Electrolyte-Gate Field-Effect Devices Functionalized With Dendrimer/Carbon-Nanotube Multilayers
JF  - Noise and fluctuations : 20th International Conference on Noise and Fluctuations, ICNF 2009, Pisa, Italy, 14 - 19 June 2009 / ed. Massimo Macucci; Giovanni Basso
Y1  - 2009
SN  - 9780735406650
N1  - AIP conference proceedings ; 1129 ; International Conference on Noise and Fluctuations ; (20, 2009, Pisa)
SP  - 133
EP  - 136
PB  - American Inst. of Physics
CY  - Melville, NY
ER  - 
TY  - JOUR
A1  - Gartzen, Johannes
A1  - Lingens, Hans
A1  - Schönbohm, J.
A1  - Baumjohann, F.
A1  - Gebhardt, Andreas
T1  - Laserhärten - im Verbund möglich. Forschungsverbund Lasertechnik NRW auf der Suche nach neuen Laseranwendungen
JF  - Technica, Rupperswil. 42 (1993), H. 24
Y1  - 1993
SN  - 0040-866X
SP  - 14
EP  - 18
ER  - 
TY  - JOUR
A1  - Gartzen, Johannes
A1  - Herinrichs, Horst
T1  - Konstruktive Auslegung von Verbauplatten - kritisch betrachtet
JF  - Tiefbau, Ingenieurbau, Straßenbau TIS. 37 (1995), H. 7
Y1  - 1995
SN  - 0340-5079
SP  - 19
EP  - 21
ER  - 
TY  - JOUR
A1  - Gartzen, Johannes
A1  - Heil, G.
T1  - Verwertung von Verbundfolien-Materialien
JF  - Spektrum der Wissenschaft (1993)
Y1  - 1993
SN  - 0170-2971
SP  - 114
EP  - 116
ER  - 
TY  - JOUR
A1  - Gartzen, Johannes
A1  - Gebhardt, Andreas
A1  - Anger, A.
A1  - Petschke, U.
A1  - Lingens, Hans
T1  - Laserstrahlschweißen mit Schweißdraht von Wärmetauschern mit hohem Wirkungsgrad
JF  - Proceedings : Aachen, Germany, 31st October - 4th November, 1994 / 27th ISATA
Y1  - 1994
SN  - 0-947719-64-4
N1  - Konferenz-Einzelbericht: ISATA, 27. Internat. Symp. on Automotive Technology & Automation
SP  - 397
EP  - 403
PB  - Automotive Automation
CY  - Croydon
ER  - 
TY  - JOUR
A1  - Gartzen, Johannes
T1  - Spätes Aufwachen aus dem Dornröschenschlaf: Ohne Energie läuft nichts
JF  - Aachener Nachrichten (2011)
Y1  - 2011
SP  - 22
PB  - Zeitungsverl. Aachen
CY  - Aachen
ER  - 
TY  - JOUR
A1  - Garibaldi, F.
A1  - Beging, Stefan
A1  - Canese, R.
A1  - Carpinelli, G.
A1  - Clinthorne, N.
A1  - Colilli, S.
A1  - Cosentino, L.
A1  - Finocchiaro, P.
A1  - Giuliani, F.
A1  - Gricia, M.
A1  - Lucentini, M.
A1  - Majewski, S.
A1  - Monno, E.
A1  - Musico, P.
A1  - Santavenere, F.
A1  - Tödter, J.
A1  - Wegener, Hans-Peter
A1  - Ziemons, Karl
T1  - A novel TOF-PET MRI detector for diagnosis and follow up of the prostate cancer
JF  - European Physical Journal Plus
Y1  - 2017
U6  - https://doi.org/10.1140/epjp/i2017-11662-x
SN  - 2190-5444
VL  - 132
IS  - 9
PB  - Springer
CY  - Berlin
ER  - 
TY  - JOUR
A1  - Garhofer, Gerhard
A1  - Bek, Toke
A1  - Boehm, Andreas G.
A1  - Gherghel, Doina
A1  - Grundwald, Juan
A1  - Jeppesen, Peter
A1  - Kergoat, Hélène
A1  - Kotliar, Konstantin
A1  - Lanzl, Ines
A1  - Lovasik, John V.
A1  - Nagel, Edgar
A1  - Vilser, Walthard
A1  - Orgul, Selim
A1  - Schmetterer, Leopold
T1  - Use of the retinal vessel analyzer in ocular blood flow research
JF  - Acta Ophthalmol
N2  - The present article describes a standard instrument for the continuous online determination of retinal vessel diameters, the commercially available retinal vessel analyzer. This report is intended to provide informed guidelines for measuring ocular blood flow with this system. The report describes the principles underlying the method and the instruments currently available, and discusses clinical protocol and the specific parameters measured by the system. Unresolved questions and the possible limitations of the technique are also discussed.
Y1  - 2010
U6  - https://doi.org/10.1111/j.1755-3768.2009.01587.x
SN  - 1755-3768
VL  - 88
IS  - 7
SP  - 717
EP  - 722
PB  - Wiley-Blackwell
CY  - Oxford
ER  - 
TY  - JOUR
A1  - Gamella, Maria
A1  - Zakharchenko, Andrey
A1  - Guz, Nataliia
A1  - Masi, Madeline
A1  - Minko, Sergiy
A1  - Kolpashchikov, Dmitry M.
A1  - Iken, Heiko
A1  - Poghossian, Arshak
A1  - Schöning, Michael Josef
A1  - Katz, Evgeny
T1  - DNA computing system activated by electrochemically triggered DNA realease from a polymer-brush-modified electrode array
JF  - Electroanalysis
N2  - An array of four independently wired indium tin oxide (ITO) electrodes was used for electrochemically stimulated DNA release and activation of DNA-based Identity, AND and XOR logic gates. Single-stranded DNA molecules were loaded on the mixed poly(N,N-dimethylaminoethyl methacrylate) (PDMAEMA)/poly(methacrylic acid) (PMAA) brush covalently attached to the ITO electrodes. The DNA deposition was performed at pH 5.0 when the polymer brush is positively charged due to protonation of tertiary amino groups in PDMAEMA, thus resulting in electrostatic attraction of the negatively charged DNA. By applying electrolysis at −1.0 V(vs. Ag/AgCl reference) electrochemical oxygen reduction resulted in the consumption of hydrogen ions and local pH increase near the electrode surface. The process resulted in recharging the polymer brush to the negative state due to dissociation of carboxylic groups of PMAA, thus repulsing the negatively charged DNA and releasing it from the electrode surface. The DNA release was performed in various combinations from different electrodes in the array assembly. The released DNA operated as input signals for activation of the Boolean logic gates. The developed system represents a step forward in DNA computing, combining for the first time DNA chemical processes with electronic input signals.
Y1  - 2017
U6  - https://doi.org/10.1002/elan.201600389
SN  - 1521-4109
VL  - 29
IS  - 2
SP  - 398
EP  - 408
PB  - Wiley-VCH
CY  - Weinheim
ER  - 
TY  - JOUR
A1  - Gaiser, Lorenz
ED  - Mohr, Klaus
T1  - Rapidshare Kinocharts
JF  - Idiopendent Lyfestile (Boxhorn ; 27)
Y1  - 2013
SN  - 1864-2535
SP  - 150
EP  - 153
PB  - FH
CY  - Aachen
ER  - 
TY  - JOUR
A1  - Gaigall, Daniel
A1  - Gerstenberg, Julian
A1  - Trinh, Thi Thu Ha
T1  - Empirical process of concomitants for partly categorial data and applications in statistics
JF  - Bernoulli
N2  - On the basis of independent and identically distributed bivariate random vectors, where the components are categorial and continuous variables, respectively, the related concomitants, also called induced order statistic, are considered. The main theoretical result is a functional central limit theorem for the empirical process of the concomitants in a triangular array setting. A natural application is hypothesis testing. An independence test and a two-sample test are investigated in detail. The fairly general setting enables limit results under local alternatives and bootstrap samples. For the comparison with existing tests from the literature simulation studies are conducted. The empirical results obtained confirm the theoretical findings.
KW  - bootstrap
KW  - Categorial variable
KW  - Concomitant
KW  - Empirical process
KW  - Independence test
Y1  - 2022
U6  - https://doi.org/10.3150/21-BEJ1367
SN  - 1573-9759
VL  - 28
IS  - 2
SP  - 803
EP  - 829
PB  - International Statistical Institute
CY  - Den Haag, NL
ER  - 
TY  - JOUR
A1  - Gaigall, Daniel
A1  - Gerstenberg, Julian
T1  - Cramér-von-Mises tests for the distribution of the excess over a confidence level
JF  - Journal of Nonparametric Statistics
N2  - The Cramér-von-Mises distance is applied to the distribution of the excess over a confidence level. Asymptotics of related statistics are investigated, and it is seen that the obtained limit distributions differ from the classical ones. For that reason, quantiles of the new limit distributions are given and new bootstrap techniques for approximation purposes are introduced and justified. The results motivate new one-sample goodness-of-fit tests for the distribution of the excess over a confidence level and a new confidence interval for the related fitting error. Simulation studies investigate size and power of the tests as well as coverage probabilities of the confidence interval in the finite sample case. A practice-oriented application of the Cramér-von-Mises tests is the determination of an appropriate confidence level for the fitting approach. The adoption of the idea to the well-known problem of threshold detection in the context of peaks over threshold modelling is sketched and illustrated by data examples.
KW  - Cramér-von-Mises test
KW  - conditional excess distribution
KW  - confidence interval
KW  - goodness-of-fit test
Y1  - 2023
U6  - https://doi.org/10.1080/10485252.2023.2173958
SN  - 1048-5252 (Print)
SN  - 1029-0311 (Online)
PB  - Taylor & Francis
ER  - 
TY  - JOUR
A1  - Gaigall, Daniel
ED  - AitSahlia, Farid
T1  - Allocating and forecasting changes in risk
JF  - Journal of risk
N2  - We consider time-dependent portfolios and discuss the allocation of changes in the risk of a portfolio to changes in the portfolio’s components. For this purpose we adopt established allocation principles. We also use our approach to obtain forecasts for changes in the risk of the portfolio’s components. To put the approach into practice we present an implementation based on the output of a simulation. Allocation is illustrated with an example portfolio in the context of Solvency II. The quality of the forecasts is investigated with an empirical study.
KW  - portfolio risk
KW  - allocation
KW  - forecast
KW  - covariance principle
KW  - conditional expectation principle
Y1  - 2023
U6  - https://doi.org/10.21314/JOR.2022.048
SN  - 1755-2842
SN  - 1465-1211
VL  - 25
IS  - 3
SP  - 1
EP  - 24
PB  - Infopro Digital Risk
CY  - London
ER  - 
TY  - JOUR
A1  - Gaigall, Daniel
T1  - On the applicability of several tests to models with not identically distributed random effects
JF  - Statistics : A Journal of Theoretical and Applied Statistics
N2  - We consider Kolmogorov–Smirnov and Cramér–von-Mises type tests for testing central symmetry, exchangeability, and independence. In the standard case, the tests are intended for the application to independent and identically distributed data with unknown distribution. The tests are available for multivariate data and bootstrap procedures are suitable to obtain critical values. We discuss the applicability of the tests to random effects models, where the random effects are independent but not necessarily identically distributed and with possibly unknown distributions. Theoretical results show the adequacy of the tests in this situation. The quality of the tests in models with random effects is investigated by simulations. Empirical results obtained confirm the theoretical findings. A real data example illustrates the application.
KW  - central symmetry test
KW  - exchangeability test
KW  - independence test
KW  - random effects
KW  - not identically distributed
Y1  - 2023
SN  - 0323-3944
U6  - https://doi.org/10.1080/02331888.2023.2193748
SN  - 1029-4910
VL  - 57
PB  - Taylor & Francis
CY  - London
ER  - 
TY  - JOUR
A1  - Gaigall, Daniel
T1  - Rothman–Woodroofe symmetry test statistic revisited
JF  - Computational Statistics & Data Analysis
N2  - The Rothman–Woodroofe symmetry test statistic is revisited on the basis of independent but not necessarily identically distributed random variables. The distribution-freeness if the underlying distributions are all symmetric and continuous is obtained. The results are applied for testing symmetry in a meta-analysis random effects model. The consistency of the procedure is discussed in this situation as well. A comparison with an alternative proposal from the literature is conducted via simulations. Real data are analyzed to demonstrate how the new approach works in practice.
Y1  - 2020
U6  - https://doi.org/10.1016/j.csda.2019.106837
SN  - 0167-9473
VL  - 2020
IS  - 142
SP  - Artikel 106837
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - JOUR
A1  - Gaigall, Daniel
T1  - Test for Changes in the Modeled Solvency Capital Requirement of an Internal Risk Model
JF  - ASTIN Bulletin
N2  - In the context of the Solvency II directive, the operation of an internal risk model is a possible way for risk assessment and for the determination of the solvency capital requirement of an insurance company in the European Union. A Monte Carlo procedure is customary to generate a model output. To be compliant with the directive, validation of the internal risk model is conducted on the basis of the model output. For this purpose, we suggest a new test for checking whether there is a significant change in the modeled solvency capital requirement. Asymptotic properties of the test statistic are investigated and a bootstrap approximation is justified. A simulation study investigates the performance of the test in the finite sample case and confirms the theoretical results. The internal risk model and the application of the test is illustrated in a simplified example. The method has more general usage for inference of a broad class of law-invariant and coherent risk measures on the basis of a paired sample.
KW  - Bootstrap
KW  - Empirical process
KW  - Functional Delta Method
KW  - Hadamard differentiability
KW  - Paired sample
Y1  - 2021
U6  - https://doi.org/10.1017/asb.2021.20
SN  - 1783-1350
VL  - 51
IS  - 3
SP  - 813
EP  - 837
PB  - Cambridge Univ. Press
CY  - Cambridge
ER  - 
TY  - JOUR
A1  - Gaigall, Daniel
T1  - Testing marginal homogeneity of a continuous bivariate distribution with possibly incomplete paired data
JF  - Metrika
N2  - We discuss the testing problem of homogeneity of the marginal distributions of a continuous bivariate distribution based on a paired sample with possibly missing components (missing completely at random). Applying the well-known two-sample Crámer–von-Mises distance to the remaining data, we determine the limiting null distribution of our test statistic in this situation. It is seen that a new resampling approach is appropriate for the approximation of the unknown null distribution. We prove that the resulting test asymptotically reaches the significance level and is consistent. Properties of the test under local alternatives are pointed out as well. Simulations investigate the quality of the approximation and the power of the new approach in the finite sample case. As an illustration we apply the test to real data sets.
KW  - Marginal homogeneity test
KW  - Crámer–von-Mises distance
KW  - Paired sample
KW  - Incomplete data
KW  - Resampling test
Y1  - 2019
U6  - https://doi.org/10.1007/s00184-019-00742-5
SN  - 1435-926X
VL  - 2020
IS  - 83
SP  - 437
EP  - 465
PB  - Springer
ER  - 
TY  - JOUR
A1  - Gaigall, Daniel
T1  - On a new approach to the multi-sample goodness-of-fit problem
JF  - Communications in Statistics - Simulation and Computation
N2  - Suppose we have k samples X₁,₁,…,X₁,ₙ₁,…,Xₖ,₁,…,Xₖ,ₙₖ with different sample sizes ₙ₁,…,ₙₖ and unknown underlying distribution functions F₁,…,Fₖ as observations plus k families of distribution functions {G₁(⋅,ϑ);ϑ∈Θ},…,{Gₖ(⋅,ϑ);ϑ∈Θ}, each indexed by elements ϑ from the same parameter set Θ, we consider the new goodness-of-fit problem whether or not (F₁,…,Fₖ) belongs to the parametric family {(G₁(⋅,ϑ),…,Gₖ(⋅,ϑ));ϑ∈Θ}. New test statistics are presented and a parametric bootstrap procedure for the approximation of the unknown null distributions is discussed. Under regularity assumptions, it is proved that the approximation works asymptotically, and the limiting distributions of the test statistics in the null hypothesis case are determined. Simulation studies investigate the quality of the new approach for small and moderate sample sizes. Applications to real-data sets illustrate how the idea can be used for verifying model assumptions.
KW  - Goodness-of-fit test
KW  - Multi-sample problem
KW  - Parametric bootstrap
Y1  - 2019
U6  - https://doi.org/10.1080/03610918.2019.1618472
SN  - 1532-4141
VL  - 53
IS  - 10
SP  - 2971
EP  - 2989
PB  - Taylor & Francis
CY  - London
ER  - 
TY  - JOUR
A1  - Gaigall, Daniel
T1  - Hoeffding-Blum-Kiefer-Rosenblatt independence test statistic on partly not identically distributed data
JF  - Communications in Statistics - Theory and Methods
N2  - The established Hoeffding-Blum-Kiefer-Rosenblatt independence test statistic is investigated for partly not identically distributed data. Surprisingly, it turns out that the statistic has the well-known distribution-free limiting null distribution of the classical criterion under standard regularity conditions. An application is testing goodness-of-fit for the regression function in a non parametric random effects meta-regression model, where the consistency is obtained as well. Simulations investigate size and power of the approach for small and moderate sample sizes. A real data example based on clinical trials illustrates how the test can be used in applications.
KW  - Brownian Pillow
KW  - Hoeffding-Blum-Kiefer-Rosenblatt independence test
KW  - not identically distributed
KW  - random effects meta-regression model
Y1  - 2020
U6  - https://doi.org/10.1080/03610926.2020.1805767
SN  - 1532-415X
VL  - 51
IS  - 12
SP  - 4006
EP  - 4028
PB  - Taylor & Francis
CY  - London
ER  - 
TY  - JOUR
A1  - Förster, Arnold
A1  - Zettler, J.-T.
A1  - Mikkelsen, H.
A1  - Leo, K.
T1  - Modulated ellipsometric measurements and transfer-matrix calculation of the field-dependent dielectric function of a multiple quantum well / J.-Th. Zettler ; H. Mikkelsen ; K. Leo ... A. Förster
JF  - Physical Review B . 46 (1992), H. 24
Y1  - 1992
SN  - 0163-1829
N1  - 2. ISSN: 1098-0121 ; ISSN der E-Ausg.: 1095-3795
SP  - 15955
EP  - 15962
ER  - 
TY  - JOUR
A1  - Förster, Arnold
A1  - Zamdmer, N.
A1  - Hu, Qing
A1  - Verghese, S.
T1  - Mode-Discriminating Photoconductor and Coplanar Wave-Guide Circuits for Picosecond Sampling. Zamdmer, N.; Hu, Qing ; Verghese, S. ; Förster, A.
JF  - Applied Physics Letters. 74 (1999), H. 7
Y1  - 1999
SN  - 1077-3118
SP  - 1039
EP  - 1041
ER  - 
TY  - JOUR
A1  - Förster, Arnold
A1  - Zamdmer, N.
A1  - Hu, Qing
A1  - McIntosh, K. A.
T1  - On-chip frequency domain submillimeter-wave transceiver. Zamdmer, N.; Hu, Qing ;  McIntosh K. A. ; Verghise, S. ; Förster, A.
JF  - Applied Physics Letters. 75 (1999), H. 24
Y1  - 1999
SN  - 1077-3118
SP  - 3877
EP  - 3879
ER  - 
TY  - JOUR
A1  - Förster, Arnold
A1  - Wensorra, J.
A1  - Indlekofer, K. M.
A1  - Lüth, H.
T1  - Resonant tunneling in nanocolumns improved by quantum collimation. Wensorra, J.; Indlekofer, K. M.; Förster, A.; Lüth, H.
JF  - Nano Letters. 5 (2005)
Y1  - 2005
SN  - 0587-4246
SP  - 2470
EP  - 2475
ER  - 
TY  - JOUR
A1  - Förster, Arnold
A1  - Vitusevich, S. A.
A1  - Belyaev, B. A.
T1  - Intrinsic bistability effect in delta doped tunneling diodes /  S. A. Vitusevich ; A. Förster ; B. A.  Belyaev ...
JF  - Proceedings of the XXVIII International School on Physics of Semiconducting Compounds : Jaszowiec, Poland, June 6 - 11, 1999 / Polish Academy of Sciences, Institute of Physics. Ed. of the proceedings Wojciech Szuszkiewicz
Y1  - 1999
N1  - International School on Physics of Semiconducting Compounds <28, 1999, Jaszowiec> ; Acta physica Polonica : A ; 96, no. 5
CY  - Warsaw
ER  - 
TY  - JOUR
A1  - Förster, Arnold
A1  - Vitusevich, S. A.
A1  - Belyaev, A. E.
A1  - Sheka, D. I.
T1  - Resonant tunneling effect in a periodically modulated electrical field. Vitusevich, S.A.; Forster, A.; Belyaev, A.E.; Sheka, D.I.; Luth, H.; Klein, N.; Danylyuk, S.V.; Konakova, R.
JF  - Proceedings of the Tenth International Conference on Modulated Semiconductor Structures : held at the Johannes Kepler University, Linz, Austria, July 23 - 27, 2001 / MSS 10. Guest ed.: Günther Bauer ...
Y1  - 2002
N1  - International  Conference  on Modulated Semiconductor Structures ; (10, 2001, Linz). Zugleich: Physica E: Low-dimensional Systems and Nanostructures. 13(2002)2-4. ISSN 1386-9477
SP  - 811
EP  - 813
PB  - Elsevier
CY  - Amsterdam [u.a.]
ER  - 
TY  - JOUR
A1  - Förster, Arnold
A1  - Vitusevich, S. A.
A1  - Belyaev, A. E.
A1  - Indlekofer, K. M.
T1  - Resonant tunneling effect in delta p-n GaAs junction. Vitusevich, S. A.; Förster, A.; Belyaev, A. E.; Indlekofer, K. M.; Lüth, H.; Konakova, R. V.
JF  - Microelectronic Engineering. 46 (1999), H. 1-4
Y1  - 1999
SN  - 0167-9317
N1  - International Conference on Micro- and Nanofabrication
SP  - 169
EP  - 172
ER  - 
TY  - JOUR
A1  - Förster, Arnold
A1  - Vitusevich, S. A.
A1  - Belyaev, A. E.
T1  - Optically controlled 2D tunneling in GaAs delta-doped p-n junction / S. A. Vitusevich ; A. Förster ; A. E. Belyaev ...
JF  - Semiconductor  Physics,  Quantum  Electronics  &  Optoelectronics (SQO) : International Scientific Journal. 2 (1999), H. 1
Y1  - 1999
SN  - 1605-6582
SP  - 7
EP  - 10
ER  - 
TY  - JOUR
A1  - Förster, Arnold
A1  - Verghese, S.
A1  - Zamdmer, N.
A1  - Hu, Qing
T1  - An optical correlator using a low-temperature-grown GaAs photoconductor / S. Verghese ; N. Zamdmer ; Qing Hu .... A. Förster
JF  - Applied physics letters. 69 (1996), H. 6
Y1  - 1996
SN  - 0003-6951
N1  - ISSN der E-Ausg.: 1077-3118
SP  - 842
EP  - 844
ER  - 
TY  - JOUR
A1  - Förster, Arnold
A1  - Verghese, S.
A1  - Zamdmer, N.
A1  - Hu, Qing
T1  - Cryogenic picosecond sampling using fiber-coupled photoconductive switch / S. Verghese ; N. Zamdmer ; Qing Hu ; A. Förster
JF  - Applied physics letters. 70 (1997), H. 20
Y1  - 1997
SN  - 0003-6951
N1  - ISSN der E-Ausg.: 1077-3118
SP  - 2644
EP  - 2646
ER  - 
TY  - JOUR
A1  - Förster, Arnold
A1  - Tulke, A.
A1  - Lüth, H.
T1  - The Schottky barrier at the InSb(110)–Sn interface
JF  - Journal of Vacuum Science & Technology B: Microelectronics and Nanometer Structures. 5 (1987), H. 4
Y1  - 1987
SN  - 1071-1023
N1  - ISSN der E-Ausg.: 0734-211X
SP  - 1054
EP  - 1056
ER  - 
TY  - JOUR
A1  - Förster, Arnold
A1  - Tillmann, K.
A1  - Thust, M.
T1  - Determination of segregation, elastic strain and thin-foil relaxation in InxGa-1-x As islands on GaAs(001) by high resolution transmission electron microscopy / K. Tillmann ; A. Thust ; M. Lentzen ... A. Förster ...
JF  - Philosophical magazine / Letters. 74 (1996), H. 5
Y1  - 1996
SN  - 1362-3036
SP  - 309
EP  - 315
ER  - 
TY  - JOUR
A1  - Förster, Arnold
A1  - Tillmann, K.
A1  - Gerthsen, D.
A1  - Pfundstein, P.
T1  - Structural transformations and strain relaxation mechanisms of In0.6Ga0.4As islands grown by molecular beam epitaxy on GaAs(001) substrates / Tillmann, K. ; Gerthsen, D. ; Pfundstein, P. ; Förster, A. ; Urban, K.
JF  - Journal of applied physics. 78 (1995), H. 6
Y1  - 1995
SN  - 0021-8979
SP  - 3824
EP  - 3832
ER  - 
TY  - JOUR
A1  - Förster, Arnold
A1  - Tillmann, K.
A1  - Gerthsen, D.
T1  - Morphological transformations of MBE-grown In0.6Ga0.4As island on GaAs(001) substrates / K. Tillmann ; D. Gerthsen ; P. Pfundstein ; A. Förster ...
JF  - Microscopy of semiconducting materials 1995 : proceedings of the Institute of Physics Conference held at Oxford University, 20 - 23 March 1995 / Ed. by A G Cullis ... - (Conference series / Institute of Physics ; 146)
Y1  - 1995
SN  - 0-7503-0347-6
N1  - MSM <9, 1995, Oxford> ; Institut of Physics <London>
SP  - 195
EP  - ff.
PB  - Institute of Physics
CY  - Bristol [u.a.]
ER  - 
TY  - JOUR
A1  - Förster, Arnold
A1  - Tillmann, K.
A1  - Gerthsen, D.
T1  - Growth morphology and misfit relaxation of MBE-grown In0.6 G0.4 As on GaAs(001) / K. Tillmann ; D. Gerthsen ; A. Förster ...
JF  - Thin solid films. 261 (1995), H. 1-2
Y1  - 1995
SN  - 0040-6090
SP  - 139
EP  - 147
ER  - 
TY  - JOUR
A1  - Förster, Arnold
A1  - Stock, J.
A1  - Indlekofer, K. M.
T1  - Perspectives of resonant tunneling diodes
JF  - Recent research developments in materials science & engineering/ 1,2
Y1  - 2002
SN  - 81-7895-057-X
N1  - Nebent.: Materials science & engineering
SP  - 527
EP  - 556
PB  - Transworld Research Network
CY  - Trivandrum, India
ER  - 
TY  - JOUR
A1  - Förster, Arnold
A1  - Spitzer, A.
A1  - Lüth, H.
T1  - The adsorption of fluor-carbon complexes on GaAs(110) studied by electron energy loss spectroscopy
JF  - Surface Science. 172 (1986), H. 1
Y1  - 1986
SN  - 0039-6028
N1  - ISSN der E-Ausg.: 0039-6028
SP  - 174
EP  - 182
ER  - 
TY  - JOUR
A1  - Förster, Arnold
A1  - Schönhut, J.
A1  - Metzner, C.
T1  - Optical investigation of impurity bands in a delta-doped n-layer / J. Schönhut ; C. Metzner ; S. Müller ... A. Förster ...
JF  - Solid state electronics. 40 (1996), H. 1-8
Y1  - 1996
SN  - 0038-1101
SP  - 701
EP  - 705
ER  - 
TY  - JOUR
A1  - Förster, Arnold
A1  - Schäpers, T.
A1  - Müller, F.
A1  - Lengeler, B.
T1  - Reflection and transmission of ballistic electrons at a potential barrier / Schäpers, T.  ; Müller, F.  ; Förster, A. ; Lengeler, B. ; Lüth, H.
JF  - Superlattices and microstructures . 14 (1993), H. 1
Y1  - 1993
SN  - 0749-6036
SP  - 57
ER  - 
TY  - JOUR
A1  - Förster, Arnold
A1  - Schäpers, T.
A1  - Müller, F.
T1  - Control of ballistic electrons in (AlGa)As/GaAs heterostructures by means of superconducting niobium gate structures / T. Schäpers ; F. Müller ; A. Förster ...
JF  - Surface Science. 305 (1994), H. 1-3
Y1  - 1994
SN  - 0039-6028
N1  - ISSN der E-Ausg.: 0039-6028
SP  - 460
EP  - 464
ER  - 
TY  - JOUR
A1  - Förster, Arnold
A1  - Schäpers, T.
A1  - Krüger, M.
A1  - Appenzeller, J.
T1  - Effect of electron-electron interaction on hot ballistic electron beams / Th. Schäpers ; M. Krüger ; J. Appenzeller ; A. Förster ...
JF  - Applied physics letters. 66 (1995), H. 26
Y1  - 1995
SN  - 0003-6951
N1  - ISSN der E-Ausg.: 1077-3118
SP  - 3603
EP  - 3606
ER  - 
TY  - JOUR
A1  - Förster, Arnold
A1  - Schäfer, B.-J.
A1  - Londschien, M.
T1  - Arsenic passivation of MOMBE grown GaAs surfaces / B. -J. Schäfer ;  A. Förster ; M. Londschien ...
JF  - Surface Science. 204 (1988), H. 3
Y1  - 1988
SN  - 0039-6028
N1  - ISSN der E-Ausg.: 0039-6028
SP  - 485
EP  - 490
ER  - 
TY  - JOUR
A1  - Förster, Arnold
A1  - Schmidt, T.
A1  - Tewordt, M.
A1  - Haug, R. J.
T1  - Peak-to-valley ratio of small resonant-tunneling diodes with various barrier-thickness asymmetries / T. Schmidt ; M. Tewordt ; R. J. Haug ... A. Förster ...
JF  - Applied physics letters. 68 (1996), H. 6
Y1  - 1996
SN  - 0003-6951
N1  - ISSN der E-Ausg.: 1077-3118
SP  - 838
EP  - 840
ER  - 
TY  - JOUR
A1  - Förster, Arnold
A1  - Schmidt, T.
A1  - Tewordt, M.
A1  - Blick, R. H.
T1  - Quantum-dot ground states in a magnetic field studied by single-electron tunneling spectroscopy on double-barrier heterostructures / T. Schmidt ; M. Tewordt ; R. H. Blick ... A. Förster ...
JF  - Physical Review B . 51 (1995), H. 8
Y1  - 1995
SN  - 0163-1829
N1  - 2. ISSN: 1098-0121 ; ISSN der E-Ausg.: 1095-3795
SP  - 5570
EP  - 5573
ER  - 
TY  - JOUR
A1  - Förster, Arnold
A1  - Schmidt, T.
A1  - Tewordt, M.
T1  - Single-electron-tunneling spectroscopy of asymmetric laterally confined double-barrier heterostructures / T. Schmidt ; M. Tewordt ; R. J. Haug ... A. Förster ...
JF  - Solid state electronics. 40 (1996), H. 1-8
Y1  - 1996
SN  - 0038-1101
SP  - 15
EP  - 19
ER  - 
TY  - JOUR
A1  - Förster, Arnold
A1  - Schmidt, T.
A1  - Haug, R. J.
T1  - Imaging the local density of states in a disordered semiconductor / T. Schmidt ; R. J. Haug ; V. I. Fal'ko ... A. Förster ...
JF  - 23rd International Conference on the Physics of Semiconductors : Berlin, Germany, July 21 - 26, 1996 / ed.: Matthias Scheffler ... - Vol. 3
Y1  - 1996
SN  - 981-02-2947-X
N1  - International Conference on the Physics of Semiconductors <23, 1996, Berlin>
SP  - 2251
EP  - ff.
PB  - World Scientific
CY  - Singapore [u.a.]
ER  - 
TY  - JOUR
A1  - Förster, Arnold
A1  - Schmidt, T.
A1  - Haug, R. J.
T1  - Spectroscopy of local density of states fluctuations in a disordered conductor / T. Schmidt ; R. J. Haug ; V. I. Fal'ko ... A. Förster ...
JF  - Europhysics letters. 36 (1996), H. 1
Y1  - 1996
SN  - 1286-4854
SP  - 61
EP  - 66
ER  - 
TY  - JOUR
A1  - Förster, Arnold
A1  - Schmidt, T.
A1  - Haug, R. J.
T1  - Spectroscopy of the single-particle states of a quantum-dot molecule / T. Schmidt ; R. J. Haug ; K. v. Klitzing ; A. Förster ...
JF  - Physical review letters. 78 (1997), H. 8
Y1  - 1997
SN  - 0031-9007
N1  - ISSN der E-Ausg.: 1079-7114
SP  - 1544
EP  - 1547
ER  - 
TY  - JOUR
A1  - Förster, Arnold
A1  - Schmidt, T.
A1  - Haug, R. J.
T1  - Observation of the local structure of landau bands in a disordered conductor / T. Schmidt ; R. J. Haug ; Vladimir I. Fal'ko ... A. Förster ...
JF  - Physical review letters. 78 (1997), H. 8
Y1  - 1997
SN  - 0031-9007
N1  - ISSN der E-Ausg.: 1079-7114
SP  - 1540
EP  - 1543
ER  - 
TY  - JOUR
A1  - Förster, Arnold
A1  - Schmidt, T.
A1  - Haug, R. J.
T1  - Single-electron transport in small resonant-tunneling diodes with various barrier-thickness asymmetries / T. Schmidt ; R. J. Haug ; K. v. Klitzing ; A. Förster ...
JF  - Physical review / B, Condensed matter and materials physics. 55 (1997), H. 4
Y1  - 1997
SN  - 1095-3795
SP  - 2230
EP  - 2236
ER  - 
TY  - JOUR
A1  - Förster, Arnold
A1  - Rosenauer, A.
A1  - Remmele, T.
T1  - Strain determination in mismatched semiconductor heterostructures by the digital analysis of lattice images / A. Rosenauer ; T. Remmele ; U. Fischer ; A. Förster ...
JF  - Microscopy of semiconducting materials 1997 : proceedings of the Royal Microscopical Society Conference held at Oxford University, 7 - 10 April 1997 / ed. by A. G. Cullis ... - (Conference series / Institute of Physics ; 157)
Y1  - 1997
SN  - 0-7503-0464-2
N1  - MSM <10, 1997, Oxford> ; Conference on Microscopy of Semiconducting Materials <10, 1997, Oxford> ; Institut of Physics <London>
SP  - 39
EP  - ff.
PB  - Institute of Physics
CY  - Bristol [u.a.]
ER  - 
TY  - JOUR
A1  - Förster, Arnold
A1  - Rosenauer, A.
A1  - Remmele, T.
T1  - Atomic scale strain measurements by the digital analysis of transmission electron microscopic lattice images / A. Rosenauer ; T. Remmele ; D. Gerthsen ... A. Förster
JF  - Optik : international journal for light and electron optics. 105 (1997), H. 3
Y1  - 1997
SN  - 0030-4026
SP  - 99
EP  - 107
ER  - 
TY  - JOUR
A1  - Förster, Arnold
A1  - Rosenauer, A.
A1  - Oberst, W.
A1  - Gerthsen, D.
T1  - Atomic scale analysis of the indium distribution in InGaAs/GaAs (001) heterostructures: segregation, lateral indium redistribution and the effect of growth interruptions. Rosenauer, A. ; Oberst, W. ; Gerthsen, D. ; Förster, A.
JF  - Thin Solid Films. 357 (1999)
Y1  - 1999
SN  - 0040-6090
SP  - 18
EP  - 21
ER  - 
TY  - JOUR
A1  - Förster, Arnold
A1  - Rosenauer, A.
A1  - Fischer, U.
A1  - Gerthsen, D.
T1  - Composition evaluation by lattice fringe analysis. Rosenauer, A.; Fischer U.;  Gerthsen D.;  Förster A.
JF  - Ultramicroscopy. 72 (1998), H. 3-4
Y1  - 1998
SN  - 0304-3991
SP  - 121
EP  - 133
ER  - 
TY  - JOUR
A1  - Förster, Arnold
A1  - Rosenauer, A.
A1  - Fischer, U.
A1  - Gerthsen, D.
T1  - Composition evaluation of InxGa1 – xAs Stranski-Krastanow-island structures by strain state analysis / A. Rosenauer ; U. Fischer ; D. Gerthsen ; A. Förster
JF  - Applied physics letters. 71 (1997), H. 26
Y1  - 1997
SN  - 0003-6951
N1  - ISSN der E-Ausg.: 1077-3118
SP  - 3868
EP  - 3870
ER  - 
TY  - JOUR
A1  - Förster, Arnold
A1  - Rose, D.
A1  - Pietsch, U.
A1  - Metzger, T. H.
T1  - Depth resolved investigations of the relaxation behaviour in strained GaInAs/GaAs superlattices using grazing incidence X-ray diffraction / Rose, D. ; Pietsch, U. ; Förster, A. ; Metzger, T. H.
JF  - Nuclear instruments and methods in physics research / Section B, Beam interactions with materials and atoms. 97 (1995), H. 1-4
Y1  - 1995
SN  - 0168-583X
SP  - 333
EP  - 336
ER  - 
TY  - JOUR
A1  - Förster, Arnold
A1  - Rose, D.
A1  - Pietsch, U.
A1  - Metzger, H.
T1  - Depth resolved investigation of the relaxation behaviour in strained GaInAs/GaAs superlattices / Rose, D. ; Pietsch, U. ; Förster, A. ; Metzger, H....
JF  - Physica B: condensed matter. 198 (1994), H. 1-3
Y1  - 1994
SN  - 0921-4526
SP  - 256
EP  - 258
ER  - 
TY  - JOUR
A1  - Förster, Arnold
A1  - Rizzi, Angela
A1  - Lüth, H.
T1  - Epitaxial growth and characterization of Si/NiSi2/Si(111) heterostructures / Angela Rizzi ; A. Förster ; H. Lüth
JF  - Surface Science. 211 - 212 (1989)
Y1  - 1989
SN  - 0039-6028
N1  - ISSN der E-Ausg.: 0039-6028
SP  - 620
EP  - 629
ER  - 
TY  - JOUR
A1  - Förster, Arnold
A1  - Resch, U.
A1  - Scholz, S. M.
T1  - Thermal desorption of amorphous arsenic caps from GaAs(100) monitored by reflection anisotropy spectroscopy / U. Resch ; S. M. Scholz ;  U. Rossow ... A. Förter ...
JF  - Applied Surface Science. 63 (1993), H. 1-4
Y1  - 1993
SN  - 0169-4332
N1  - ISSN der E-Ausg.: 0169-4332
SP  - 106
EP  - 110
ER  - 
TY  - JOUR
A1  - Förster, Arnold
A1  - Resch, U.
A1  - Essera, N.
A1  - Raptis, Y. S.
T1  - Arsenic passivation of MBE grown GaAs(100): structural and electronic properties of the decapped surfaces / U. Resch ;  N. Essera ; Y. S. Raptis ... A. Förster ...
JF  - Surface Science. 269-270 (1992)
Y1  - 1992
SN  - 0039-6028
N1  - ISSN der E-Ausg.: 0039-6028
SP  - 797
EP  - 803
ER  -