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JF - Diamond, SiC and nitride wide bandgap semiconductors : symposium held April 4 - 8, 1994, San Francisco, California, U.S.A. / ed.: Calvin H. Carter, Jr. ....
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N1 - Materials Research Society symposium proceedings ; 339
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JF - Proceedings of the IFIP TC 6 International Conference on Information Network and Data Communication : Lillehammer, Norway, 26 - 29 March, 1990 / ed. by Dipak Khakhar ...
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A1 - Quernheim, Ulrich
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PB - OTN-Berichtsstelle, Technisch-wissenschaftliche Information, Messerschmitt-Bölkow-Blohm GmbH
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T1 - CSCW for Requirements Engineering - Requirements Engineering for CSCW
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JF - Schmollers Jahrbuch : Zeitschrift für Wirtschafts- und Sozialwissenschaften ; journal of applied social science studies. 121 (2001)
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A1 - Lööf, Hans
A1 - Peters, Bettina
T1 - Firm Level Innovation and Productivity, Is there a Common Story Across Countries?
JF - Problems and Perspectives in Management (2004)
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N1 - online download: http://businessperspectives.org/files/ppm/PPM_EN_2004_02_Janz.pdf
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T1 - Firm Level Innovation and Productivity, Is there a Common Story Across Countries?
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N1 - ZEW Diskussion Paper. No 03-26 Online : ftp://ftp.zew.de/pub/zew-docs/dp/dp0326.pdf
PB - Zentrum für Europäische Wirtschaftsforschung ZEW
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A1 - Ebling, Günther
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T1 - Innovation Activities in the German Economy: Report on indicators from the Innovation Survey 2001 (english translation) / Janz, N., G. Ebling, S. Gottschalk, B. Peters und T. Schmidt
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PB - ZEW Zentrum für Europäische Wirtschaftsforschung
CY - Mannheim
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A1 - Janz, Norbert
A1 - Gottschalk, Sandra
A1 - Hempell, Thomas
A1 - Peters, Bettina
T1 - Innovation Activities in the German Economy. Report on Indicators from the Innovation Survey 2000 (English translation) / Janz, N., S. Gottschalk, T. Hempell, B. Peters, G. Ebling und H. Niggemann
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A1 - De Lucchi, Michele
T1 - Diffuse Reflexe / Des. Michele De Lucchi, Gerhard Reichert
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JF - Proceedings : 8 - 12 September 2003, Monterey Bay, California, USA / sponsored by IEEE Computer Society Technical Council on Software Engineering (TCSE) ... In cooperation with ACM SigSOFT
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N1 - International Requirements Engineering Conference ; (11, 2003, Monterey, Calif.)
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A1 - Pietsch, Wolfram
T1 - Software quality management III : [... held in Seville in April 1995] / [Third International Conference on Software Quality Management]. Ed.: M. Ross
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PB - Computational Mechanics Publ.
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A1 - Kurbel, Karl
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T1 - Modeling Knowledge about Long-term IS-Integration and Integration-oriented Reengineering with KADS / Kurbel, K., Jung, R., Pietsch, W.
JF - Distributed information systems in business / W. König ... (eds.)
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SN - 3-540-61094-4
PB - Springer
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A1 - Licht, Georg
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A1 - Peters, Bettina
T1 - Innovation and Innovation Success in the German Manufacturing Sector. Econometric Evidence at Firm Level / Janz, N. and Peters, B.
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A1 - Taudes, A.
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JF - IM : die Fachzeitschrift für Information Management & Consulting (1994)
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A1 - Priester, W.
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T1 - 2nd Community Innovation Survey. 1st Interim Report. Report prepared for Eurostat / Ebling, G., N. Janz, H. Niggemann und H. Stahl
Y1 - 1998
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CY - Mannheim
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A1 - Rennings, Klaus
T1 - Characteristics and Performance of Eco-Innovative Firms in the German Service Sector
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A1 - Ebling, Günther
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A1 - Licht, Georg
T1 - The Longitudinal Aspect of Innovation Surveys / G. Ebling, J. Göggerle, N. Janz, G. Licht und H. Stahl
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CY - Mannheim
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TY - BOOK
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CY - Mannheim
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T1 - Export and Innovation Activities in the German Service Sector. Empirical Evidence at the Firm Level / Ebling, G.. und N. Janz
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CY - Mannheim
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T1 - Services in the Future: Innovation Activities in the Service Sector. Survey 1999 (English translation) / Janz, N., G. Ebling, S. Gottschalk und H. Niggemann
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T1 - 2nd Community Innovation Survey. Final Report. Report prepared for Eurostat / Ebling, G. , S. Gottschalk, N. Janz und H. Niggemann
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CY - Mannheim
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TY - BOOK
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A1 - Ebling, Günther
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T1 - 2nd Community Innovation Survey. 2nd Interim Report. Report prepared for Eurostat / Ebling, G. , S. Gottschalk, N. Janz und H. Niggemann
Y1 - 1999
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CY - Mannheim
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TY - BOOK
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A1 - Ebling, Günther
A1 - Gottschalk, Sandra
A1 - Licht, Georg
T1 - Prospects of the German Economy: Innovation Activities in the Manufacturing Sector. Survey 1998 (English translation) / Janz, N., G. Ebling, S. Gottschalk, G. Licht und H. Niggemann
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CY - Mannheim
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A1 - Gottschalk, Sandra
A1 - Licht, Georg
T1 - Services in the Future. Innovation Activities in the Service Sector. Survey 1998 (English translation) / Janz, N., G. Ebling, S. Gottschalk, G. Licht und H. Niggemann
Y1 - 1999
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CY - Mannheim
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TY - BOOK
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A1 - Licht, Georg
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A1 - Niggemann, Hiltrud
T1 - Innovation in the Service Sector. Selected Facts and Some Policy Conclusions / Licht, G., G. Ebling, N. Janz, H. Niggemann
Y1 - 1999
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A1 - Müller, Christian Philipp
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JF - Proceedings of the International Harbour Congress. 13 (2003)
Y1 - 2003
N1 - International Harbour Congress <13, 2003, Antwerpen>
SP - 101
EP - 109
ER -
TY - JOUR
A1 - Hirschberg, Rainer
T1 - Computer-Aided-Engineering in der Technischen Gebäudeausrüstung
JF - computer spezial (1994)
Y1 - 1994
N1 - Beil. zu: Tiefbau, Ingenieurbau, Strassenbau (1994)Nr.5
SP - 32
EP - 37
ER -
TY - JOUR
A1 - Höttges, Jörg
T1 - Turbulence and Mixing Mechanics in Compound Open Channel Flow / Arnold, Uwe; Höttges, Jörg; Rouvé, Gerhard
JF - On cutoff ratios of curved channels : paper presented at the 23rd Congress of the IAHR, Ottawa, Canada, August 21 - 25, 1989 / G. J. Klaassen; B. H. J.van Zanten
Y1 - 1990
N1 - Congress of the IAHR ; (23 : ; 1989.08.21-25 : ; Ottawa)
PB - Delft Hydraulics
CY - Delft
ER -
TY - JOUR
A1 - Höttges, Jörg
A1 - Arnold, Uwe
A1 - Rouvé, Gerhard
T1 - Profiles of Mixing Coefficient in Compound Open Channel
JF - Flow modeling and turbulence measurements : [... a collection of lectures and papers presented at the Fourth International Symposium on Refined Flow Modelling and Turbulence Measurements held in Wuhan, People's Republic of China, on September 20-23, 1990]
Y1 - 1992
SN - 1-56032-209-8
N1 - International Symposium on Refined Flow Modelling and Turbulence Measurements <4, 1990, Wuhan>
PB - Hemisphere Publ. Corp.
CY - Washington, DC [u.a.]
ER -
TY - JOUR
A1 - Höttges, Jörg
T1 - A Full Finite Element Solution for the Unsteady Advection-Diffusion Equation
JF - Computational methods in water resources : [proceedings of the Ninth International Conference on Computational Methods in Water Resources held at the University of Colorado at Denver, U.S.A., in June 1992] / ed.: T. F. Russell
Y1 - 1992
SN - 185312169X
N1 - International Conference on Computational Methods in Water Resources ; (9, 1992, Denver, Colo.)
PB - Computational Mechanics Publications [u.a.]
CY - Southampton [u.a.]
ER -
TY - JOUR
A1 - Höttges, Jörg
A1 - Feldhaus, R.
A1 - Brockhaus, T.
A1 - Rouvé, Gerhard
T1 - Finite Element Simulation of Flow and Pollution Transport applied to a Part of the River Rhine / Feldhaus, R.; J. Höttges, T. Brockhaus; G. Rouvé
JF - Hydraulic and environmental modelling : proceedings of the Second International Conference on Hydraulic and Environmental Modelling of Coastal, Estuarine, and River Waters / [IAHR-AIRH]. Ed. by R. A. Falconer
Y1 - 1992
N1 - International Conference on Hydraulic and Environmental Modelling of Coastal, Estuarine, and River Waters ; (2, 1992, Bradford)
PB - Ashgate
CY - Aldershot, Hants, UK [u.a.]
ER -
TY - JOUR
A1 - Höttges, Jörg
A1 - Arnold, Uwe
A1 - Rouvé, Gerhard
T1 - Measurement of transverse mixing using digital image acquisition
JF - Mixing and transport in the environment : a memorial volume for Catherine M. Allen (1954-1991) / ed. by Keith J. Beven
Y1 - 1994
SN - 0471941425
PB - Wiley
CY - Chichester [u.a.]
ER -
TY - BOOK
A1 - Kettern, Jürgen
T1 - Mechanical and biological treatment of waste after separate collection / R. Damiecki; J.T. Kettern. Italian Ministry of Enviroment
Y1 - 1993
N1 - SARDINIA 93 ; 2 ; International Landfill Symposium ; (4. : ; 1993.10.11-15 : ; S. Margherita di Pula)
PB - Eigenverlag
CY - Caglieri
ER -
TY - JOUR
A1 - Höttges, Jörg
A1 - Ritterbach, E.
A1 - Els, H.
T1 - Optical Improvement of LDV-Measurement in Pipe Flow / Ritterbach, E.; J. Höttges; H. Els
JF - Laser anemometry : advances and applications; proceedings of the 2. International Conference, Strathclyde, Scotland, 21st to 23rd September 1987 / ed. by John Turner ... UK LDA Users Group
Y1 - 1987
SN - 3540187561
PB - Springer
CY - Berlin [u.a.]
ER -
TY - JOUR
A1 - Höttges, Jörg
A1 - Arnold, Uwe
A1 - Rouvé, Gerhard
T1 - Combined Digital Image and Finite Element Analysis of Mixing in Compound Open Channel Flow / Arnold, U.; J. Höttges; G. Rouvé
JF - Refined flow modelling and turbulence measurements : proceedings of the Third International Symposium Tokyo, Japan 26 - 28 July, 1988 / ed. by Y. Iwasa. Scientific Organizing Committee of the Third International Symposium on Refined Flow Modelling and Tur
Y1 - 1989
SN - 4-946443-03-7
N1 - International Symposium on Refined Flow Modelling and Turbulence Measurements <3, 1988, Tōkyō>
SP - 569
EP - 576
PB - Universal Acad. Press
CY - Tokyo
ER -
TY - JOUR
A1 - Biener, Ernst
A1 - Sasse, T.
T1 - Construction and rehabilitation of landfill shafts
JF - Sardinia 93 : Fourth International Landfill Symposium "Barrier systems, environmental aspects, upgrading and remediation, siting, monofills, effects of waste pretreatment, landfilling in developing countries" ; 11 - 15 October 1993, S. Margherita di Pula (Cagliari), Sardinia, Italy ; proceedings / coord. by Thomas H. Christensen ... - Bd. 1
Y1 - 1993
N1 - International Landfill Symposium <4, 1993, Santa Margherita, Pula>
SP - 451
EP - 460
PB - CISA, Environmental Sanitary Engineering Centre
CY - Cagliari
ER -
TY - JOUR
A1 - Gossla, Ulrich
A1 - Sato, R.
T1 - Present production circumstances of aggregate in Germany / Sato, R.; Gossla, U.
JF - Cement & Concrete (1998)
Y1 - 1998
N1 - auf Japanisch
SP - 146
EP - 153
ER -
TY - JOUR
A1 - Bassam, Rasha
A1 - Artmann, Gerhard
A1 - Hescheler, Jürgen
A1 - Graef, T.
A1 - Temiz Artmann, Aysegül
A1 - Porst, Dariusz
A1 - Linder, Peter
A1 - Kayser, Peter
A1 - Arinkin, Vladimir
A1 - Gossmann, Matthias
A1 - Digel, Ilya
T1 - Alterations in human hemoglobin structure related to red blood cell storage
N2 - The importance of the availability of stored blood or blood cells, respectively, for urgent transfusion cannot be overestimated. Nowadays, blood storage becomes even more important since blood products are used for epidemiological studies, bio-technical research or banked for transfusion purposes. Thus blood samples must not only be processed, stored, and shipped to preserve their efficacy and safety, but also all parameters of storage must be recorded and reported for Quality Assurance. Therefore, blood banks and clinical research facilities are seeking more accurate, automated means for blood storage and blood processing.
KW - Hämoglobin
KW - Hämoglobinstruktur
KW - Blutzellenlagerung
KW - Hemoglobin structure
KW - Red blood cell storage
Y1 - 2011
ER -
TY - JOUR
A1 - Preiß, C.
A1 - Linder, Peter
A1 - Wendt, K.
A1 - Krystek, M.
A1 - Digel, Ilya
A1 - Gossmann, Matthias
A1 - Temiz Artmann, Aysegül
A1 - Porst, Dariusz
A1 - Kayser, Peter
A1 - Bassam, Rasha
A1 - Artmann, Gerhard
T1 - Engineering technology for plant physiology and plant stress research
N2 - Plant physiology and plant stress: Plant physiology will be much more important for human mankind because of yield and cultivation limits of crops determined by their resistance to stress. To assess and counteract various stress factors it is necessary to conduct plant research to gain information and results on plant physiology.
KW - Pflanzenphysiologie
KW - Pflanzenstress
KW - Pflanzenscanner
KW - plant stress
KW - plant scanner
Y1 - 2011
ER -
TY - JOUR
A1 - Seifarth, Volker
A1 - Schehl, D.
A1 - Linder, Peter
A1 - Gossmann, Matthias
A1 - Digel, Ilya
A1 - Artmann, Gerhard
A1 - Porst, Dariusz
A1 - Preiß, C.
A1 - Kayser, Peter
A1 - Pack, O.
A1 - Temiz Artmann, Aysegül
T1 - Ureplace: development of a bioreactor for in vitro culturing of cell seeded tubular vessels on collagen scaffolds
N2 - The demand of replacements for inoperable organs exceeds the amount of available organ transplants. Therefore, tissue engineering developed as a multidisciplinary field of research for autologous in-vitro organs. Such three dimensional tissue constructs request the application of a bioreactor. The UREPLACE bioreactor is used to grow cells on tubular collagen scaffolds OPTIMAIX Sponge 1 with a maximal length of 7 cm, in order to culture in vitro an adequate ureter replacement. With a rotating unit, (urothelial) cells can be placed homogeneously on the inner scaffold surface. Furthermore, a stimulation is combined with this bioreactor resulting in an orientation of muscle cells. These culturing methods request a precise control of several parameters and actuators. A combination of a LabBox and the suitable software LabVision is used to set and conduct parameters like rotation angles, velocities, pressures and other important cell culture values. The bioreactor was tested waterproof successfully. Furthermore, the temperature controlling was adjusted to 37 °C and the CO2 - concentration regulated to 5 %. Additionally, the pH step responses of several substances showed a perfect functioning of the designed flow chamber. All used software was tested and remained stable for several days.
KW - Tissue Engineering
KW - Bioreaktor
KW - Organkultur
KW - Harnleiter
Y1 - 2011
ER -
TY - JOUR
A1 - Zhubanova, Azhar A.
A1 - Aknazarov, S. K.
A1 - Mansurov, Zulkhair
A1 - Digel, Ilya
A1 - Kozhalakova, A. A.
A1 - Akimbekov, Nuraly S.
A1 - O'Heras, Carlos
A1 - Tazhibayeva, S.
A1 - Artmann, Gerhard
A1 - Temiz Artmann, Aysegül
T1 - Adsorption of bacterial Lipopolysaccharides and blood plasma proteins on modified carbonized materials
N2 - Bacterial lipopolysaccharides (endotoxins) show strong biological effects at very low concentrations in human beings and many animals when entering the blood stream. These include affecting structure and function of organs and cells, changing metabolic functions, raising body temperature, triggering the coagulation cascade, modifying hemodynamics and causing septic shock. Because of this toxicity, the removal of even minute amounts is essential for safe parenteral administration of drugs and also for septic shock patients' care. The absence of a general method for endotoxin removal from liquid interfaces urgently requires finding new methods and materials to overcome this gap. Nanostructured carbonized plant parts is a promising material that showed good adsorption properties due to its vast pore network and high surface area. The aim of this study was comparative measurement of endotoxin- and blood proteins-related adsorption rate and adsorption capacity for different carboneous materials produced at different temperatures and under different surface modifications. As a main surface modificator, positively cbarged polymer, polyethileneimine (PEl) was used. Activated carbon materials showed good adsorption properties for LPS and some proteins used in the experiments. During the batch experiments, several techniques (dust removal, autoclaving) were used and optimized for improving the material's adsorption behavior. Also, with the results obtained it was possible to differentiate the materials according to their adsorption capacity and kinetic characteristics. Modification of the surface apparently has not affected hemoglobin binding to the adsorbent's surface. Obtained adsorption isotherms can be used as a powerful tool for designing of future column-based setups for blood purification from LPS, which is especially important for septic shock treatment.
KW - Kohlenstofffaser
KW - Lipopolysaccharide
KW - nanostrukturierte carbonisierte Pflanzenteile
KW - lipopolysaccharides
KW - nanostructured carbonized plant parts
Y1 - 2010
ER -
TY - JOUR
A1 - Staat, Manfred
A1 - Ballmann, J.
T1 - Computation of impacts on elastic solids by methods of bicharacteristics
JF - Computational Mechanics '88 : theory and applications ; proceedings of the International Conference on Computational Engineering Science April 10-14, 1988, Atlanta, GA, USA ; vol. 2
N2 - Shock waves, explosions, impacts or cavitation bubble collapses may generate stress waves in solids causing cracks or unexpected dammage due to focussing, physical nonlinearity or interaction with existing cracks. There is a growing interest in wave propagation, which poses many novel problems to experimentalists and theorists.
KW - Bicharakteristikenverfahren
KW - Elastizität
KW - elastic solids
KW - bicharacteristics
Y1 - 1988
SP - 1719
EP - 1722
ER -
TY - CHAP
A1 - Tran, Thanh Ngoc
A1 - Novacek, V.
A1 - Tolba, R.
A1 - Klinge, U.
A1 - Turquier, F.
A1 - Staat, Manfred
T1 - Experimental and Computational approach to study colorectal anastomosis. ISB2011, Proceedings of the XXIII Congress of the International Society of Biomechanics, Brussels, Belgium, July 3-7, 2011
N2 - Summary: This paper presents a methodology to study and understand the mechanics of stapled anastomotic behaviors by combining empirical experimentation and finite element analysis. Performance of stapled anastomosis is studied in terms of leakage and numerical results which are compared to in vitro experiments performed on fresh porcine tissue. Results suggest that leaks occur between the tissue and staple legs penetrating through the tissue.
KW - Anastomose
KW - Finite-Elemente-Methode
KW - Biomechanik
KW - Anastomosis
KW - Finite element method
KW - Biomechanics
Y1 - 2011
ER -
TY - CHAP
A1 - Schöning, Michael Josef
A1 - Abdelghani, Adnane
T1 - Nanoscale Science and Technology (NS&T’12) : Proceedings Book Humboldt Kolleg <2012, Tunisia> ; Tunisia, 17-19 March, 2012 / ed. by Michael J. Schöning ; Adnane Abdelghani
N2 - Proceedings of the 2nd Humboldt Kolleg, Hammamet, Tunisia Organizer: Alexander von Humboldt Stiftung, Germany. pdf 184 p. Welcome Address Dear Participants, Welcome to the 2nd Humboldt Kolleg in “Nanoscale Science and Technology” (NS&T’12) in Tunisia, sponsored by the "Alexander von Humboldt" foundation. The NS&T’12 multidisciplinary scientific program includes seven "hot" topics dealing with "Nanoscale Science and Technology" covering basic and application-oriented research as well as industrial (market) aspects: - Molecular Biophyics, Spectroscopy Techniques, Imaging Microscopy - Nanomaterials Synthesis for Medicine and Bio-chemical Sensors - Nanostructures, Semiconductors, Photonics and Nanodevices - New Technologies in Market Industry - Environment, Electro-chemistry, Bio-polymers and Fuel Cells - Nanomaterials, Photovoltaic, Modelling, Quantum Physics - Microelectronics, Sensors Networks and Embedded Systems We are deeply indebted to all members of the Scientific Committee and General Chairs for joint Sessions and to all speakers and chairmen, who have dedicated invaluable time and efforts for the realization of this event. On behalf of the Organizing Committee, we are cordially inviting you to join the conference and hope that your stay will be fruitful, rewarding and enjoyable. Prof. Dr. Michael J. Schöning, Prof. Dr. Adnane Abdelghani
KW - Biosensor
KW - Nanotechnologie
KW - Nanomaterial
KW - Nano Materials
KW - Bio-Sensors
Y1 - 2012
U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:a96-opus-3544
ER -
TY - CHAP
A1 - Tran, Thanh Ngoc
A1 - Pham, Phu Tinh
A1 - Staat, Manfred
T1 - Reliability analysis of shells based on direct plasticity methods
N2 - Abstracts der CD-Rom Proceedings of the 8th World Congress on Computational Mechanics (WCCM8) and 5th Congress on Computational Methods in Applied Sciences and Engineering (ECCOMAS 2008) 30.06. - 04.07.2008 Venedig, Italien. 2 Seiten Zusammenfassung der Autoren mit graph. Darst. und Literaturverzeichnis
N2 - Abstracts of the Proceedings of the 8th World Congress on Computational Mechanics (WCCM8) and 5th Congress on Computational Methods in Applied Sciences and Engineering (ECCOMAS 2008) June 30th - July, 4th 2008, Venice, Italy. 2 pages with abstracts of the authors, Ill. and references.
KW - Finite-Elemente-Methode
KW - Limit analysis
KW - Shakedown analysis
KW - First-order reliability method
KW - second-order reliability method
KW - Sensitivity
Y1 - 2008
ER -
TY - GEN
A1 - Kämper, Klaus-Peter
T1 - Lecture notes Sensors and Actuators WS 2008/2009
N2 - Password necessarily. Access only for Students by Prof. Dr. Klaus-Peter Kämper. Winter semester 2008/2009. 488 pages (pdf) Contents 1. Introduction 2. Introduction to Sensors 3. Introduction to Microfabrication 4. Pressure Sensors 5. Acceleration Sensors 6. Angular Rate Sensors 7. Position Sensors 8. Flow Sensors 9. Piezoelectric Actuators 10. Magnetostrictive Actuators 11. Actuators based on Shape Memory Alloys 12. Actuators based on Electrorheological Fluids 13. Actuators based on Magnetorheological Fluids 14. Index
N2 - Kennwortgeschützter Zugang nur für Studierende bei Prof. Dr. Klaus-Peter Kämper. Wintersemester 2008/2009. 488 Seiten (pdf-Format)
KW - Sensor
KW - Aktor
KW - Sensoren
KW - Aktoren
KW - Sensores
KW - Actuators
KW - Microfabrication
Y1 - 2008
ER -
TY - CHAP
A1 - Mertens, Josef
T1 - Laminar leading edges: manufacturing, contamination, and operational aspects - results from the German RaWid programme
N2 - RaWid was the German national technology programme on transonic aerodynamics and supporting technologies, lasting from 1995 to 1998. One of the main topics was laminar wing development. Besides aerodynamic design work, many operational aspects were investigated. A manufacturing concept was developed to be applied to operational laminar wings and empennages. It was built in a large scale manufacturing demonstrator with the aerodynamic shape of a 1,5 m section of the A320 fin nose. Tolerances in shape and roughness fulfilled all requirements. The construction can easily be adapted to varying stiffness and strength requirements. Weight and manufacturing costs are comparable to common nose designs. The mock-up to be designed in ALTTA is based on this manufacturing principle. Another critical point is contamination of suction surfaces. Several tests were performed to investigate perforated titanium suction surfaces at realistic operational conditions: - a one year flight test with a suction plate in the stagnation area of the Airbus "Beluga" - a one year test of several suction plates in a ground test near the airport - a one year test of a working suction ground test installation at all weather conditions. No critical results were found. There is no long term suction degradation visible. Icing conditions and ground de-icing fluids used on airports did not pose severe problems. Some problems detected require only respection of weak design constraints.
KW - Laminare Strömung
KW - Ansaugsystem
KW - Profilumströmung
KW - Laminarprofil
KW - RaWid
KW - hybrid laminar flow
KW - suction systems
KW - suction structure
KW - contamination
KW - operational aspects
Y1 - 2000
ER -
TY - CHAP
A1 - Kern, Alexander
A1 - Dikta, Gerhard
T1 - Probability of damage of electrical and electronic systems due to indirect lightning flashes - investigation of data from German insurance companies
N2 - In the presented paper data collected from the field related to damage statistics of electrical and electronic apparatus in household are reported and investigated. These damages (total number approx. 74000 cases), registered by five German insurance companies in 2005 and 2006, were adviced by customers as caused by lightning overvoltages. With the use of stochastical methods it is possible, to reasses the collected data and to distinguish between cases, which are with high probability caused by lightning overvoltages, and those, which are not. If there was an indication for a direct strike, this case was excluded, so the focus was only on indirect lightning flashes, i.e. only flashes to ground near the structure and flashes to or nearby an incoming service line were investigated. The data from the field contain the location of damaged apparatus (residence of the policy holder) and the distances of the nearest cloud-to-ground stroke to the location of the damage registered by the German lightning location network BLIDS at the date of damage. The statistical data along with some complementary numerical simulations allow to verify the correspondence of the Standards rules used for IEC 62305-2 with the field data and to define some correction needs. The results could lead to a better understanding whether a damage reported to an insurance company is really caused by indirect lightning, or not.
KW - Blitzschutz
KW - lightning flash
Y1 - 2009
ER -
TY - CHAP
A1 - Ballmann, J.
A1 - Raatschen, Hans-Jürgen
A1 - Staat, Manfred
T1 - High stress intensities in focussing zones of waves
N2 - The propagation of mechanical waves in plates of isotropic elastic material is investigated. After a short introduction to the understanding of focussing of stress waves in a plate with a curved boundary the method of characteristics is applied to a plate of hyperelastic material. Using this method the propagation of acceleration waves is discussed. Based on this a numerical difference scheme is developed for solving initial-boundary-value problems and applied to two examples: propagation of a point disturbance in a homogeneously finitely strained non-linear elastic plate and geometrical focussing in al linear elastic plate.
KW - Technische Mechanik
KW - Wellen
KW - mechanical waves
Y1 - 1985
U6 - https://doi.org/10.1016/B978-0-444-42520-1.50015-3
ER -
TY - CHAP
A1 - Schöning, Michael Josef
A1 - Abdelghani, Adnane
T1 - Advancements in Nanotechnology and Microelectronics (ANM '09) <2009, Tunisia>: Proceedings book ; Tunisia, November, 13 & 14, 2009 / Humboldt Kolleg. Ed. by Michael J. Schöning ; Adnane Abdelghani
N2 - The ANM’09 multi-disciplinary scientific program includes topics in the fields of "Nanotechnology and Microelectronics" ranging from "Bio/Micro/Nano Materials and Interfacing" aspects, "Chemical and Bio-Sensors", "Magnetic and Superconducting Devices", "MEMS and Microfluidics" over "Theoretical Aspects, Methods and Modelling" up to the important bridging "Academics meet Industry".
KW - Nanopartikel
KW - Biosensor
KW - Supraleiter
KW - MEMS
KW - Biophoton
KW - Nanotechnology ; Microelectronics ; Biosensors ; Superconductor ; MEMS
Y1 - 2009
U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:a96-opus-3113
ER -
TY - JOUR
A1 - Akimbekov, Nuraly S.
A1 - Mansurov, Zulkhair
A1 - Jandosov, J.
A1 - Digel, Ilya
A1 - Gossmann, Matthias
A1 - Artmann, Gerhard
A1 - Temiz Artmann, Aysegül
A1 - Zhubanova, Azhar A.
T1 - Wound healing activity of carbonized rice husk
N2 - The carbonized rice husk (CRH) was evaluated for its wound healing activity in rats using excision models. In this study, the influences of CRH on wound healing in rat skin in vivo and cellular behavior of human dermal fibroblasts in vitro were investigated. The obtained results showed that the CRH treatment promoted wound epithelization in rats and exhibited moderate inhibition of cell proliferation in vitro. CRH with lanolin oil treated wounds were found to epithelize faster as compared to controls.
KW - Wundheilung
KW - Epithel
KW - Fibroblast
KW - carbonized rice husk
KW - wound healing
KW - epithelization
KW - human dermal fibroblasts
Y1 - 2013
PB - Trans Tech Publications, Switzerland
CY - Bäch
ER -
TY - CHAP
A1 - Kirchhof, M.
A1 - Kraft, Bodo
T1 - UML-based modeling of architectural knowledge and design
N2 - IASSE-2004 - 13th International Conference on Intelligent and Adaptive Systems and Software Engineering eds. W. Dosch, N. Debnath, pp. 245-250, ISCA, Cary, NC, 1-3 July 2004, Nice, France We introduce a UML-based model for conceptual design support in civil engineering. Therefore, we identify required extensions to standard UML. Class diagrams are used for elaborating building typespecific knowledge: Object diagrams, implicitly contained in the architect’s sketch, are validated against the defined knowledge. To enable the use of industrial, domain-specific tools, we provide an integrated conceptual design extension. The developed tool support is based on graph rewriting. With our approach architects are enabled to deal with semantic objects during early design phase, assisted by incremental consistency checks.
KW - UML
KW - UML
KW - Unified Modeling Language
KW - UML
KW - Unified Modeling Language
Y1 - 2004
ER -
TY - CHAP
A1 - Kraft, Bodo
A1 - Schneider, Gerd
T1 - Semantic Roomobjects for Conceptual Design Support : A Knowledge-based Approach
N2 - In: Computer Aided Architectural Design Futures 2005 2005, Part 4, 207-216, DOI: http://dx.doi.org/10.1007/1-4020-3698-1_19 The conceptual design at the beginning of the building construction process is essential for the success of a building project. Even if some CAD tools allow elaborating conceptual sketches, they rather focus on the shape of the building elements and not on their functionality. We introduce semantic roomobjects and roomlinks, by way of example to the CAD tool ArchiCAD. These extensions provide a basis for specifying the organisation and functionality of a building and free architects being forced to directly produce detailed constructive sketches. Furthermore, we introduce consistency analyses of the conceptual sketch, based on an ontology containing conceptual relevant knowledge, specific to one class of buildings.
KW - CAD
KW - CAD
KW - Bauingenieurwesen
KW - CAD
KW - civil engineering
Y1 - 2005
SN - 978-1-4020-3460-2
ER -
TY - CHAP
A1 - Kraft, Bodo
A1 - Wilhelms, Nils
T1 - Visual Knowledge Specification for Conceptual Design
N2 - Proc. of the 2005 ASCE Intl. Conf. on Computing in Civil Engineering (ICCC 2005) eds. L. Soibelman und F. Pena-Mora, Seite 1-14, ASCE (CD-ROM), Cancun, Mexico, 2005 Current CAD tools are not able to support the fundamental conceptual design phase, and none of them provides consistency analyses of sketches produced by architects. To give architects a greater support at the conceptual design phase, we develop a CAD tool for conceptual design and a knowledge specification tool allowing the definition of conceptually relevant knowledge. The knowledge is specific to one class of buildings and can be reused. Based on a dynamic knowledge model, different types of design rules formalize the knowledge in a graph-based realization. An expressive visual language provides a user-friendly, human readable representation. Finally, consistency analyses enable conceptual designs to be checked against this defined knowledge. In this paper we concentrate on the knowledge specification part of our project.
KW - CAD
KW - CAD
KW - Bauingenieurwesen
KW - CAD
KW - civil engineering
Y1 - 2005
ER -
TY - CHAP
A1 - Kraft, Bodo
A1 - Retkowitz, Daniel
T1 - Rule-Dependencies for Visual Knowledge Specification in Conceptual Design
N2 - In: Proc. of the 11th Intl. Conf. on Computing in Civil and Building Engineering (ICCCBE-XI) ed. Hugues Rivard, Montreal, Canada, Seite 1-12, ACSE (CD-ROM), 2006 Currently, the conceptual design phase is not adequately supported by any CAD tool. Neither the support while elaborating conceptual sketches, nor the automatic proof of correctness with respect to effective restrictions is currently provided by any commercial tool. To enable domain experts to store the common as well as their personal domain knowledge, we develop a visual language for knowledge formalization. In this paper, a major extension to the already existing concepts is introduced. The possibility to define rule dependencies extends the expressiveness of the knowledge definition language and contributes to the usability of our approach.
KW - CAD
KW - CAD
KW - Bauingenieurwesen
KW - CAD
KW - civil engineering
Y1 - 2006
ER -
TY - JOUR
A1 - Kraft, Bodo
A1 - Nagl, Manfred
T1 - Visual Knowledge Specification for Conceptual Design: Definition and Tool Support
N2 - In: Advanced Engineering Informatics. Vol 21, Issue 1, 2007, Pages 67-83 http://dx.doi.org/10.1016/j.aei.2006.10.001 eds. J.C. Kunz, I.F.C. Smith and T. Tomiyama, Elsevier, Seite 1-22 Current CAD tools are not able to support the conceptual design phase, and none of them provides a consistency analysis for sketches produced by architects. This phase is fundamental and crucial for the whole design and construction process of a building. To give architects a better support, we developed a CAD tool for conceptual design and a knowledge specification tool. The knowledge is specific to one class of buildings and it can be reused. Based on a dynamic and domain-specific knowledge ontology, different types of design rules formalize this knowledge in a graph-based form. An expressive visual language provides a user-friendly, human readable representation. Finally, a consistency analysis tool enables conceptual designs to be checked against this formal conceptual knowledge. In this article, we concentrate on the knowledge specification part. For that, we introduce the concepts and usage of a novel visual language and describe its semantics. To demonstrate the usability of our approach, two graph-based visual tools for knowledge specification and conceptual design are explained.
KW - CAD
KW - CAD
KW - Bauingenieurwesen
KW - CAD
KW - civil engineering
Y1 - 2007
ER -
TY - CHAP
A1 - Fredebeul-Krein, Markus
T1 - Encouraging competition and investment into next generation access networks: The case of long term risk sharing contracts
N2 - Working paper distributed at 2nd Annual Next Generation Telecommunications Conference 2009, 13th – 14th October 2009, Brussels 14 pages Abstract Governments all over Europe are in the process of adopting new broadband strategies. The objective is to create modern telecommunications networks based on powerful broadband infrastructures". In doing so, they aim for innovative and investment-friendly concepts. For instance, in a recently published consultation paper on the subject the German regulator BNetzA declared that it will take “greater account of … reducing risks, securing the investment and innovation power, providing planning certainty and transparency – in order to support and advance broadband rollout in Germany”. It further states that when regulating wholesale rates it has to be ensured that “… adequate incentives for network rollout are provided on the one hand, while sustainable and fair competition is ensured on the other”. Also an EC draft recommendation on regulated network access is about to set new standards for the regulation of next generation access networks. According to the recommendation the prices of new assets shall be based on costs plus a projectspecific risk premium to be included in the costs of capital for the investment risk incurred by the operator. This approach has been criticised from various sides. In particular it has been questioned whether such an approach is adequate to meet the objectives of encouraging both competition and investment into next generation access networks. Against this background, the concept of “long term risk sharing contracts” has been proposed recently as an approach which does not only incorporate the various additional risks involved in the deployment of NGA infrastructure, but has several other advantages. This paper will demonstrate that the concept allows for competition to evolve at both the retail and wholesale level on fair, objective, non-discriminatory and transparent terms and conditions. Moreover, it ensures the highest possible investment incentive in line with socially desirable outcome. The paper is organised as follows: The next section will briefly outline the importance of encouraging competition and investment in an NGA-environment. The third section will specify the design of long term risk sharing contracts in view of achieving these objectives. The fourth section will examine potential problems associated with the concept. In doing so a way of how to deal with them will be elaborated. The last section will look at arguments against long term risk sharing contracts. It will be shown that these arguments are not strong enough to build a case against introducing such contracts.
KW - Electronic Commerce
KW - Breitband Markt
KW - Regulierung
KW - Internet
KW - Bundesnetzagentur
KW - broadband market
KW - regulation
KW - Internet
KW - next generation access networks
KW - risk sharing
Y1 - 2009
ER -
TY - CHAP
A1 - Kraft, Bodo
A1 - Meyer, Oliver
A1 - Nagl, Manfred
T1 - Graph technology support for conceptual design in civil engineering
N2 - In: Advances in intelligent computing in engineering : proceedings of the 9.International EG-ICE Workshop ; Darmstadt, (01 - 03 August) 2002 / Martina Schnellenbach-Held ... (eds.) . - Düsseldorf: VDI-Verl., 2002 .- Fortschritt-Berichte VDI, Reihe 4, Bauingenieurwesen ; 180 ; S. 1-35 The paper describes a novel way to support conceptual design in civil engineering. The designer uses semantical tools guaranteeing certain internal structures of the design result but also the fulfillment of various constraints. Two different approaches and corresponding tools are discussed: (a) Visually specified tools with automatic code generation to determine a design structure as well as fixing various constraints a design has to obey. These tools are also valuable for design knowledge specialist. (b) Extensions of existing CAD tools to provide semantical knowledge to be used by an architect. It is sketched how these different tools can be combined in the future. The main part of the paper discusses the concepts and realization of two prototypes following the two above approaches. The paper especially discusses that specific graphs and the specification of their structure are useful for both tool realization projects.
KW - CAD
KW - CAD ;
KW - CAD
KW - civil engineering
Y1 - 2002
SN - 3-18-318004-9
ER -
TY - CHAP
A1 - Kraft, Bodo
T1 - Conceptual design tools for civil engineering
N2 - Applications of Graph Transformations with Industrial Relevance Lecture Notes in Computer Science, 2004, Volume 3062/2004, 434-439, DOI: http://dx.doi.org/10.1007/978-3-540-25959-6_33 This paper gives a brief overview of the tools we have developed to support conceptual design in civil engineering. Based on the UPGRADE framework, two applications, one for the knowledge engineer and another for architects allow to store domain specific knowledge and to use this knowledge during conceptual design. Consistency analyses check the design against the defined knowledge and inform the architect if rules are violated.
KW - CAD
KW - CAD
KW - Bauingenieurwesen
KW - CAD
KW - civil engineering
Y1 - 2004
ER -