Refine
Year of publication
Document Type
- Article (3226)
- Conference Proceeding (1146)
- Part of a Book (184)
- Book (144)
- Doctoral Thesis (30)
- Patent (25)
- Other (9)
- Report (9)
- Working Paper (6)
- Lecture (5)
- Poster (4)
- Preprint (4)
- Talk (4)
- Master's Thesis (2)
- Bachelor Thesis (1)
- Contribution to a Periodical (1)
- Habilitation (1)
Language
- English (4801) (remove)
Keywords
- Biosensor (25)
- Finite-Elemente-Methode (12)
- Einspielen <Werkstoff> (10)
- CAD (8)
- civil engineering (8)
- Bauingenieurwesen (7)
- Blitzschutz (6)
- FEM (6)
- Gamification (6)
- Limit analysis (6)
- Shakedown analysis (6)
- avalanche (6)
- shakedown analysis (6)
- Clusterion (5)
- Earthquake (5)
- Enterprise Architecture (5)
- MINLP (5)
- solar sail (5)
- Air purification (4)
- Diversity Management (4)
Institute
- Fachbereich Medizintechnik und Technomathematik (1668)
- Fachbereich Elektrotechnik und Informationstechnik (693)
- IfB - Institut für Bioengineering (620)
- Fachbereich Energietechnik (579)
- INB - Institut für Nano- und Biotechnologien (555)
- Fachbereich Chemie und Biotechnologie (534)
- Fachbereich Luft- und Raumfahrttechnik (477)
- Fachbereich Maschinenbau und Mechatronik (278)
- Fachbereich Wirtschaftswissenschaften (207)
- Solar-Institut Jülich (164)
- Fachbereich Bauingenieurwesen (153)
- ECSM European Center for Sustainable Mobility (79)
- MASKOR Institut für Mobile Autonome Systeme und Kognitive Robotik (67)
- Nowum-Energy (28)
- Fachbereich Gestaltung (25)
- Institut fuer Angewandte Polymerchemie (23)
- Sonstiges (21)
- Fachbereich Architektur (20)
- Freshman Institute (18)
- Kommission für Forschung und Entwicklung (18)
Diffusion in simple fluids / R. J. Speedy; F. X. Prielmeier; T. Vardag; E. W. Lang; H.-D. Lüdemann
(1989)
The spin asymmetry in deep inelastic scattering of longitudinally polarised muons by longitudinally polarised protons has been measured in the range 0.01<×<0.7. The spin dependent structure function g1(x) for the proton has been determined and, combining the data with earlier SLAC measurements, its integral over x found to be 0.126±0.010(stat.)±0.015(syst.), in disagreement with the Ellis-Jaffe sum rule. Assuming the validity of the Biorken sum rule, this result implies a significant negative value for the integral of g1 for the neutron. These integrals lead to the conclusion, in the naïve quark parton model, that the total quark spin constitutes a rather small fraction of the spin of the nucleon. Results are also presented on the asymmetries in inclusive hadron production which are consistent with the above picture.
Design of enzyme reactors as chromatographic columns for racemic resolution of amino acid esters
(1989)
The nonlinear scalar constitutive equations of gases lead to a change in sound speed from point to point as would be found in linear inhomogeneous (and time dependent) media. The nonlinear tensor constitutive equations of solids introduce the additional local effect of solution dependent anisotropy. The speed of a wave passing through a point changes with propagation direction and its rays are inclined to the front. It is an open question whether the widely used operator splitting techniques achieve a dimensional splitting with physically reasonable results for these multi-dimensional problems. May be this is the main reason why the theoretical and numerical investigations of multi-dimensional wave propagation in nonlinear solids are so far behind gas dynamics. We hope to promote the subject a little by a discussion of some fundamental aspects of the solution of the equations of nonlinear elastodynamics. We use methods of characteristics because they only integrate mathematically exact equations which have a direct physical interpretation.