TY  - JOUR
A1  - Ziemons, Karl
T1  - An investigation of the spin structure of the proton in deep inelastic scattering of polarised muons and polarised protons
JF  - Nuclear Physics B
N2  - 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.
Y1  - 1989
SN  - 0550-3213
N1  - European Muon Collaboration
VL  - 328
IS  - 1
SP  - 1
EP  - 35
ER  - 
TY  - JOUR
A1  - Weber, Hans-Joachim
A1  - Schmitt, W.
A1  - Jahn, D.
A1  - Euringer, H.
T1  - Ein Versuch zur theoretischen Temperaturermittlung im Schneidbereich bei Bohrungen in kortikalem Knochen - An Experiment to Calculate the Theoretical Temperature at the Drill - Cortical Bone Interface / Schmitt, W. ; Weber, H. J. ; Jahn, D. ; Euringer, H.
JF  - Biomedizinische Technik/Biomedical Engineering. 34 (1989), H. 3
Y1  - 1989
SN  - 0013-5585
N1  - in der Bereichsbibliothek Jülich gedruckt vorhanden
SP  - 53
EP  - 56
ER  - 
TY  - PAT
A1  - Wahle, Michael
T1  - Gestaltung von plattenförmigen Hohlprofilen oder wellblechartigen Profilen : Offenlegungsschrift / Europäische Patentschrift
T1  - Configuration of panel-shaped hollow profiles : patent of invention
Y1  - 1989
PB  - Deutsches Patent- und Markenamt / Europäisches Patentamt
CY  - München / Den Hague
ER  - 
TY  - BOOK
A1  - Stephan, Jürgen
T1  - Entscheidungsorientierte Wechselkurssicherung
Y1  - 1989
SN  - 3-89012-153-5
N1  - Zugl.: Köln, Univ., Diss., 1989; Reihe: quantitative Ökonomie ; 14
PB  - Eul
CY  - Bergisch Gladbach [u.a.]
ER  - 
TY  - JOUR
A1  - Staat, Manfred
A1  - Ballmann, J.
T1  - Zur Problematik tensorieller Verallgemeinerungen einachsiger nichtlinearer Materialgesetze
JF  - Zeitschrift für angewandte Mathematik und Mechanik : ZAMM. 69 (1989), H. 2
Y1  - 1989
SN  - 0946-8463
U6  - http://dx.doi.org/10.1515/9783112553169-006
SP  - 73
EP  - 81
ER  - 
TY  - CHAP
A1  - Staat, Manfred
A1  - Ballmann, J.
T1  - Fundamental aspects of numerical methods for the propagation of multi-dimensional nonlinear waves in solids
T2  - Nonlinear hyperbolic equations : theory, computations methods, and applications ; proceedings of the 2nd International Conference on Nonlinear Hyperbolic Problems, Aachen
N2  - 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.
KW  - Nichtlineare Welle
KW  - Nichtlineare Gleichung
KW  - Festkörper
KW  - Elastodynamik
KW  - Multi-dimensional wave propagation
KW  - nonlinear solids
KW  - nonlinear tensor constitutive equation
Y1  - 1989
SP  - 574
EP  - 588
ER  - 
TY  - PAT
A1  - Sponagel, Stefan
A1  - Graf, Günter
A1  - Groß, Heinz
T1  - Method for manufacturing a sealing ring : United States Patent 4,861,536 ; date of patent: Aug. 12, 1989 / assignee: Firma Carl Freudenberg. Inventors: Gunter Graf ; Heinz Gross ; Stefan Sponagel
Y1  - 1989
N1  - Barcode: US004861536A ; Volltext über Datenbank: http://www.google.com/patents
PB  - [United States Patent and Trademark Office]
CY  - [Alexandria, VA]
ER  - 
TY  - PAT
A1  - Sponagel, Stefan
A1  - Graf, Günter
A1  - Groß, Heinz
T1  - Method for the manufacture of a sealing ring with a sealing lip having hydrodynamically acting return elements : United States Patent 4,850,097 ; date of patent: Jul. 25, 1989 / assignee: Firma Carl Freudenberg. Inventors: Gunter Graf ; Heinz Gross ; Stefan Sponagel
Y1  - 1989
N1  - Barcode: US004850097A ; Volltext über Datenbank: http://www.google.com/patents
PB  - [United States Patent and Trademark Office]
CY  - [Alexandria, VA]
ER  - 
TY  - JOUR
A1  - Schäfer, Horst
A1  - Mende, H. H.
T1  - Interaction between laminated g.o.3% SiFe sheets due to gap-stray fields and edge peaks
JF  - Physica Scripta. 39 (1989), H. 3
Y1  - 1989
SN  - 0031-8949
SP  - 397
EP  - 400
ER  - 
TY  - JOUR
A1  - Schäfer, Horst
A1  - Lampey, H.
A1  - Mende, H. H.
T1  - Stray-field profile of single M-shaped Si-Fe transformer sheets and the resulting interaction in a stack
JF  - Physica Scripta. 39 (1989), H. 4
Y1  - 1989
SN  - 0031-8949
SP  - 520
EP  - 522
ER  -