TY  - JOUR
A1  - Dachwald, Bernd
A1  - Leipold, M.
A1  - Fichtner, H.
T1  - Heliopause Explorer - A Sailcraft Mission to the Outer Boundaries of the Solar System / M. Leipold ; H. Fichtner ; B. Heber  ... B. Dachwald ...
JF  - Proceedings of the Fifth IAA International Conference on Low Cost Planetary Missions : 24 - 26 September 2003, ESTEC, Noordwijk, the Netherlands / [comp. by R. A. Harris]
Y1  - 2003
SN  - 92-9092-853-0
N1  - International Conference on Low Cost Planetary Missions <5, 2003, Noordwijk> ; International Academy of Astronautics ; European Space Research and Technology Centre
SP  - 367
EP  - 375
PB  - ESA
CY  - Noordwijk
ER  - 
TY  - JOUR
A1  - Bressel, A.
A1  - Schultze, J.W.
A1  - Khan, W.
A1  - Wolfaardt, G. M.
A1  - Rohns, H.-P.
A1  - Irmscher, R.
A1  - Schöning, Michael Josef
T1  - High resolution gravimetric, optical and electrochemical investigations of microbial biofilm formation in aqueous systems
JF  - Electrochimica Acta. 48 (2003), H. 20-22
Y1  - 2003
SN  - 0013-4686
SP  - 3363
EP  - 3372
ER  - 
TY  - JOUR
A1  - Heger, Michael
A1  - Callhoff, Aneta
T1  - Hochschuldidaktische Weiterbildung der Fachhochschulen in Nordrhein-Westfalen
JF  - Hochschuldidaktik in Deutschland / [Red.: Johannes Wildt. Hrsg. von der Arbeitsgemeinschaft für Hochschuldidaktik e.V.]
Y1  - 2003
N1  - DUZ special
SP  - 5
PB  - Raabe
CY  - Bonn
ER  - 
TY  - GEN
A1  - Samm, Doris
T1  - Horizontal schwingende Feder (Simulation in Java)
N2  - Die Anwender können die Federkonstante, die Amplitude und die Masse einstellen. Es werden die Änderung der kinetischen und potentiellen Energie angezeigt und die Auslenkung als Funktion der Zeit dargestellt.
KW  - Feder
KW  - Amplitude
KW  - Auslenkung
KW  - Javasimulation
Y1  - 2003
ER  - 
TY  - JOUR
A1  - Baroud, G.
A1  - Wu, J.Z.
A1  - Bohner, M
A1  - Sponagel, Stefan
A1  - Steffen, T.
T1  - How to determine the permeability for cement infiltration into osteoporotic cancellous bone
JF  - Medical Engineering & Physics. 25 (2003), H. 4
N2  - Cement augmentation is an emerging surgical procedure in which bone cement is used to infiltrate and reinforce osteoporotic vertebrae. Although this infiltration procedure has been widely applied, it is performed empirically and little is known about the flow characteristics of cement during the injection process. We present a theoretical and experimental approach to investigate the intertrabecular bone permeability during the infiltration procedure. The cement permeability was considered to be dependent on time, bone porosity, and cement viscosity in our analysis. In order to determine the time-dependent permeability, ten cancellous bone cores were harvested from osteoporotic vertebrae, infiltrated with acrylic cement at a constant flow rate, and the pressure drop across the cores during the infiltration was measured. The viscosity dependence of the permeability was determined based on published experimental data. The theoretical model for the permeability as a function of bone porosity and time was then fit to the testing data. Our findings suggest that the intertrabecular bone permeability depends strongly on time. For instance, the initial permeability (60.89 mm4/N.s) reduced to approximately 63% of its original value within 18 seconds. This study is the first to analyze cement flow through osteoporotic bone. The theoretical and experimental models provided in this paper are generic. Thus, they can be used to systematically study and optimize the infiltration process for clinical practice.
KW  - Osteoporose
KW  - Permeabilität
KW  - Viskose Strömung
KW  - Viskosität
KW  - Vertebroplastie
KW  - Cement infiltration
KW  - Vertebroplasty
KW  - Osteoporosis
KW  - Permeability
KW  - Experiment
KW  - Analysis
KW  - Viscous flow
Y1  - 2003
SN  - 1350-4533
SP  - 283
EP  - 288
ER  - 
TY  - JOUR
A1  - Öhlschläger, Peter
A1  - Osen, Wolfram
A1  - Dell, Kerstin
A1  - Faath, Stefan
T1  - Human papillomavirus type 16 L1 capsomeres induce L1-specific cytotoxic T lymphocytes and tumor regression in C57BL/6 mice / Öhlschläger, Peter ; Osen, Wolfram ; Dell, Kerstin ; Faath, Stefan ; Garcea Robert L: ; Jochmus, Ingrid ; Müller, Martin, Pawlita,
JF  - Journal of Virology. 77 (2003), H. 8
Y1  - 2003
SN  - 1098-5514
SP  - 4635
EP  - 4645
ER  - 
TY  - JOUR
A1  - Sponagel, Stefan
A1  - Unger, J.
A1  - Spies, K. H.
T1  - Härtebegriff im Zusammenhang mit Vernetzung, Bruchdehnung und Dauerfestigkeit eines Elastomers
JF  - Kautschuk Gummi Kunststoffe. 56 (2003), H. 11
Y1  - 2003
SN  - 0948-3276
SP  - 608
EP  - 613
ER  - 
TY  - JOUR
A1  - Pietschmann, Bernd P.
A1  - Niclas, Falco
T1  - Impulse für erfolgreiche Führung
JF  - Personal : Zeitschrift für Human Resource Management. 55 (2003), H. 4
Y1  - 2003
SN  - 0031-5605
SP  - 16
EP  - 20
ER  - 
TY  - CHAP
A1  - Ziller, Claudia
A1  - Döring, Bernd
ED  - Carmeliet, J.
ED  - Hens, H.
ED  - Vermeir, G.
T1  - Influence of the external dynamic wind pressure on the ventilation of double facades
T2  - Research in building physics: proceedings of the Second International Conference on Building Physics : Leuven, Belgium, 14-18 September 2003
Y1  - 2003
SN  - 9058095657, 9789058095657
SP  - 527
EP  - 533
PB  - Taylor and Francis
CY  - Hoboken
ER  - 
TY  - JOUR
A1  - Klocke, Martina
T1  - Ingenieurinnen dringend gesucht
JF  - Von der Dampfmaschine zur Brennstoffzelle : 100 Jahre Ingenieurausbildung in Kiel / [Hrsg. Fachhochschule Kiel. Red. Martina Klocke]
Y1  - 2003
SP  - 52
EP  - 55
PB  - Fachhochschule
CY  - Kiel
ER  -