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129 results on '"Wünsch, K."'

1. X-ray scattering as a probe for warm dense mixtures and high-pressure miscibility

Author

Wünsch, K., Vorberger, J., Gregori, G., and Gericke, D. O.

Subjects
Physics - Plasma Physics
Abstract

We demonstrate the abilities of elastic x-ray scattering to yield information on dense matter with multiple ion species and on the microscopic mixing in dense materials. Based on partial structure factors from ab initio simulations, a novel approach for the elastic scattering feature is applied to dense hydrogen-beryllium and hydrogen-helium mixtures. The scattering signal differs significantly between single species, real microscopic mixtures, and two separate fluids in the scattering volume., Comment: 3 figures

Published
2010
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2. X-ray scattering from warm dense iron

Author

White, S., Nersisyan, G., Kettle, B., Dzelzainis, T.W.J., McKeever, K., Lewis, C.L.S., Otten, A., Siegenthaler, K., Kraus, D., Roth, M., White, T., Gregori, G., Gericke, D.O., Baggott, R., Chapman, D.A., Wünsch, K., Vorberger, J., and Riley, D.

Published
2013
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5. Therapieregime nach schwerster offener Quetschverletzung der Hand mit zusätzlicher Weichteilschädigung durch Verätzung und Inkorporation mit Flüssigbeton

Author

Schmidt, C, Zhu, Z, Schütz, L, Wünsch, K, Kilper, A, and Reimers, N

Subjects
ddc: 610, Verätzungen durch Beton, schwere Handquetschverletzung, Medicine and health, Revaskularisation Mittelhand
Abstract

Fragestellung: Eine 3° offene Quetschverletzung der Hand mit ausgeprägten Verschmutzungen und eingesprengten Fremdkörpern stellt eine Notfallindikation zur sofortigen operativen Versorgung dar. Durch eingesprengten Flüssigbeton kommt es zu chemischen Reaktionen und einem initial [zum vollständigen Text gelangen Sie über die oben angegebene URL]

Published
2021
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6. Komplexe Quetschverletzung rechte Hand und Unterarm durch ein 250 kg schweres Metallwerkstück

Author

Wünsch, K, Zhu, Z, Schmidt, C, Schmidt, U, and Schütz, L

Subjects
ddc: 610, Medicine and health
Abstract

Fragestellung: Zur Versorgung kommt am 04.07.2017 ein 1993 geborener Mann (BG-Unfall) mit komplexer Quetschverletzung rechte Hand/Unterarm. Es bestehen grob verschmutzte Riss-Quetschwunden mit streifigen Hautnekrosen sowie in Höhe des Ligamentum carpi transversum eine vollständige Durchtrennung [zum vollständigen Text gelangen Sie über die oben angegebene URL]

Published
2021
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7. Die individuelle Therapieentscheidung bei Avulsions-Amputationsverletzung des Daumens mit Ausriss der langen Streck- und Beugesehnen

Author

Reimers, N, Kilper, A, Schütz, L, Zhu, Z, Wünsch, K, and Schmidt, C

Subjects
Ausriss der Streck- und Beugesehnen, ddc: 610, Replantation, Medicine and health, Avulsionsverletzung des Daumens
Abstract

Fragestellung: Eine Avulsions-Amputationsverletzung der Finger ist eine Notfallindikation zur sofortigen Replantation oder je nach Weichteilzustand einer Amputation. Insgesamt ist die Avulsionsverletzung per se eine Verletzung mit schlechterem Outcome, da der initiale Weichteilschaden oft nicht offenkundig [zum vollständigen Text gelangen Sie über die oben angegebene URL]

Published
2021
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10. Testing ion structure models with x-ray Thomson scattering

Author

Wünsch K., Vorberger J., and Gericke D.O.

Subjects
Physics, QC1-999
Abstract

We investigate the influence of various ionic structure models on the interpretation of the X-ray Thomson scattering signal. For the calculation of the ion structure, classical hypernetted chain equations are used applying different effective inter-particle potentials. It is shown that the different models lead to significant discrepancies in the theoretically predicted weight of the Rayleigh peak, in particular for small k-values where correlation effects are important. Here, we propose conditions which might allow for an experimental verification of the theories under consideration of experimental constraints of k-vector blurring.

Published
2013
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11. Modelling Thomson scattering for systems with non-equilibrium electron distributions

Author

Chapman D.A., Vorberger J., Wünsch K., and Gericke D.O.

Subjects
Physics, QC1-999
Abstract

We investigate the effect of non-equilibrium electron distributions in the analysis of Thomson scattering for a range of conditions of interest to inertial confinement fusion experiments. Firstly, a generalised one-component model based on quantum statistical theory is given in the random phase approximation (RPA). The Chihara expression for electron-ion plasmas is then adapted to include the new non-equilibrium electron physics. The theoretical scattering spectra for both diffuse and dense plasmas in which non-equilibrium electron distributions are expected to arise are considered. We find that such distributions strongly influence the spectra and are hence an important consideration for accurately determining the plasma conditions.

Published
2013
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13. Winkelstabile Implantate bei der operativen Versorgung von Handgelenkarthrosen

Author

Wünsch, K and Schütz, L

Subjects
ddc: 610, total wrist fusion-Platte, 610 Medical sciences, Medicine
Abstract

Fragestellung: Eigene Erfahrungen bei der Versorgung von Arthrosen im Bereich des Handgelenkes und der Handwurzel, Falldarstellung zum Einsatz von winkelstabilen Implantaten bei der operativen Versorgung mittels Teil- und Komplettarthrodesen Methodik: Es werden die an unserer Klinik im Jahr 2012[zum vollständigen Text gelangen Sie über die oben angegebene URL], 56. Kongress der Deutschen Gesellschaft für Handchirurgie, 20. Jahrestagung der Deutschen Arbeitsgemeinschaft für Handtherapie (DAHTH)

Published
2015
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21. Enchondrome im Handbereich – operative Versorgung und Defektauffüllung mit Hydroxylapatit – Nachuntersuchung von 17 Patienten

Author

Wünsch, K, Schmidt, U, Zhu, Z, and Schütz, L

Subjects
ddc: 610, 610 Medical sciences, Medicine
Abstract

Fragestellung: Enchondrome im Handbereich können an jeder Lokalisation auftreten. Bei der Defektauffüllung können verschiedene Verfahren gewählt werden. Während die Resektionsdefekte früher in unserer Klinik noch mit Spongiosa aufgefüllt wurden, wurde im weiteren Verlauf[for full text, please go to the a.m. URL], 53. Kongress der Deutschen Gesellschaft für Handchirurgie

Published
2012
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22. Identification of the Optimal Harvest Date for the Energy Crops Sudan Grass (Sorghum Sudanense) and Jerusalem Artichoke (Helianthus Tuberosus L.)

Author

Wünsch, K., Gruber, S., and Claupein, W.

Subjects
food and beverages, Biomass
Abstract

High-yealding crops are needed to produce renewable energy based on biomass. Two not yet widely used but promising crops in term of yield potential are Sudan grass (Sorghum sudanense (Piper) Stapf) and Jerusalem artichoke (Helianthus tuberosus L.). Basic concepts for the cultivation are still missing. The objective of this study was to determine the optimal harvest dates and levels of nitrogen fertilization for Sudan grass and Jerusalem artichoke to achieve highest biomass yields. The effects of different fertilization levels and different harvest dates were tested in field experiments in SW-Germany over two years. Soil mineral nitrogen, dry matter yield, dry matter content and length of the whole crop were measured. Dry matter yields of Sudan grass increased from 7.0 t ha-1 at the early harvest/ heading up to 8.5 t ha-1 at the late harvest/ after flowering. Jerusalem artichoke achieves highest yields with 15.3 t ha-1 at the middle harvest date/ flowering. The experimental factor fertilization within the factor harvest date did not show significant higher dry matter yields. The results indicate that high biomass yields of both energy crops depend on crop specific characteristics and can be characterized by dry matter content and stage of plant development at harvest., Proceedings of the 19th European Biomass Conference and Exhibition, 6-10 June 2011, Berlin, Germany, pp. 556-560

Published
2011
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23. The complex ion structure of warm dense carbon measured by spectrally resolved x-ray scatteringa)

Author

Kraus, D., primary, Vorberger, J., additional, Helfrich, J., additional, Gericke, D. O., additional, Bachmann, B., additional, Bagnoud, V., additional, Barbrel, B., additional, Blažević, A., additional, Carroll, D. C., additional, Cayzac, W., additional, Döppner, T., additional, Fletcher, L. B., additional, Frank, A., additional, Frydrych, S., additional, Gamboa, E. J., additional, Gauthier, M., additional, Göde, S., additional, Granados, E., additional, Gregori, G., additional, Hartley, N. J., additional, Kettle, B., additional, Lee, H. J., additional, Nagler, B., additional, Neumayer, P., additional, Notley, M. M., additional, Ortner, A., additional, Otten, A., additional, Ravasio, A., additional, Riley, D., additional, Roth, F., additional, Schaumann, G., additional, Schumacher, D., additional, Schumaker, W., additional, Siegenthaler, K., additional, Spindloe, C., additional, Wagner, F., additional, Wünsch, K., additional, Glenzer, S. H., additional, Roth, M., additional, and Falcone, R. W., additional

Published
2015
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25. Evidence for a glassy state in strongly driven carbon

Author

Brown, C. R. D., primary, Gericke, D. O., additional, Cammarata, M., additional, Cho, B. I., additional, Döppner, T., additional, Engelhorn, K., additional, Förster, E., additional, Fortmann, C., additional, Fritz, D., additional, Galtier, E., additional, Glenzer, S. H., additional, Harmand, M., additional, Heimann, P., additional, Kugland, N. L., additional, Lamb, D. Q., additional, Lee, H. J., additional, Lee, R. W., additional, Lemke, H., additional, Makita, M., additional, Moinard, A., additional, Murphy, C. D., additional, Nagler, B., additional, Neumayer, P., additional, Plagemann, K.-U., additional, Redmer, R., additional, Riley, D., additional, Rosmej, F. B., additional, Sperling, P., additional, Toleikis, S., additional, Vinko, S. M., additional, Vorberger, J., additional, White, S., additional, White, T. G., additional, Wünsch, K., additional, Zastrau, U., additional, Zhu, D., additional, Tschentscher, T., additional, and Gregori, G., additional

Published
2014
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26. Observations of strong ion-ion correlations in dense plasmas

Author

Ma, T., primary, Fletcher, L., additional, Pak, A., additional, Chapman, D. A., additional, Falcone, R. W., additional, Fortmann, C., additional, Galtier, E., additional, Gericke, D. O., additional, Gregori, G., additional, Hastings, J., additional, Landen, O. L., additional, Le Pape, S., additional, Lee, H. J., additional, Nagler, B., additional, Neumayer, P., additional, Turnbull, D., additional, Vorberger, J., additional, White, T. G., additional, Wünsch, K., additional, Zastrau, U., additional, Glenzer, S. H., additional, and Döppner, T., additional

Published
2014
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27. Probing the Complex Ion Structure in Liquid Carbon at 100 GPa

Author

Kraus, D., primary, Vorberger, J., additional, Gericke, D. O., additional, Bagnoud, V., additional, Blažević, A., additional, Cayzac, W., additional, Frank, A., additional, Gregori, G., additional, Ortner, A., additional, Otten, A., additional, Roth, F., additional, Schaumann, G., additional, Schumacher, D., additional, Siegenthaler, K., additional, Wagner, F., additional, Wünsch, K., additional, and Roth, M., additional

Published
2013
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33. Measurements of Ionic Structure in Shock Compressed Lithium Hydride from Ultrafast X-Ray Thomson Scattering

Author

Kritcher, A. L., primary, Neumayer, P., additional, Brown, C. R. D., additional, Davis, P., additional, Döppner, T., additional, Falcone, R. W., additional, Gericke, D. O., additional, Gregori, G., additional, Holst, B., additional, Landen, O. L., additional, Lee, H. J., additional, Morse, E. C., additional, Pelka, A., additional, Redmer, R., additional, Roth, M., additional, Vorberger, J., additional, Wünsch, K., additional, and Glenzer, S. H., additional

Published
2009
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35. Measurement of Short-Range Correlations in Shock-Compressed Plastic by Short-Pulse X-Ray Scattering

Author

Barbrel, B., primary, Koenig, M., additional, Benuzzi-Mounaix, A., additional, Brambrink, E., additional, Brown, C. R. D., additional, Gericke, D. O., additional, Nagler, B., additional, Rabec le Gloahec, M., additional, Riley, D., additional, Spindloe, C., additional, Vinko, S. M., additional, Vorberger, J., additional, Wark, J., additional, Wünsch, K., additional, and Gregori, G., additional

Published
2009
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37. Probing warm dense lithium by inelastic X-ray scattering

Author

García Saiz, E., primary, Gregori, G., additional, Gericke, D. O., additional, Vorberger, J., additional, Barbrel, B., additional, Clarke, R. J., additional, Freeman, R. R., additional, Glenzer, S. H., additional, Khattak, F. Y., additional, Koenig, M., additional, Landen, O. L., additional, Neely, D., additional, Neumayer, P., additional, Notley, M. M., additional, Pelka, A., additional, Price, D., additional, Roth, M., additional, Schollmeier, M., additional, Spindloe, C., additional, Weber, R. L., additional,  van Woerkom, L., additional, Wünsch, K., additional, and Riley, D., additional

Published
2008
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44. Beta-delayed neutron emission fromRb to excited states in the residual Sr isotopes.

Author

Kratz, K., Schröder, A., Ohm, H., Zendel, M., Gabelmann, H., Ziegert, W., Peuser, P., Jung, G., Pfeiffer, B., Wünsch, K., Wollnik, H., Ristori, C., and Crançon, J.

Abstract

Beta-delayed neutron emission from the precursorsRb to excited states in the residual nucleiSr has been measured by means of γ-ray and neutron spectroscopy. In general, considerable neutron feeding of excited final states is observed. The experimental branching ratios ( P) are compared to predictions from statistical model calculations. It is demonstrated that the main parameter affecting the P-values is the shape of the β-strength function ( S). For several Rb isotopes hindrance, respectively enhancement of neutron branches to specific final states is observed giving evidence for the persistence of intermediate structure of the neutron-emitting states. By the example ofRb it is shown that a few integral β-delayed neutron properties may be sufficient to derive first estimates on the real shape of S above the neutron binding energy. This result is of importance for exotic nuclei where detailed spectroscopic investigations are precluded. [ABSTRACT FROM AUTHOR]

Published
1982
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45. Präzise Q-Wert-Messungen mit einem Intrinsic-Germanium-Detektor an schweren, neutronenreichen Spaltprodukten.

Author

Decker, R., Wünsch, K., Wollnik, H., Jung, G., Münzel, J., Siegert, G., and Koglin, E.

Abstract

An intrinsic germanium detector was used to measure the beta endpoint energies of heavy fission products supplied by the on line mass separator OSTIS installed at the high flux reactor of the Institut Max von Laue-Paul Langevin, Grenoble. The endpoints of singles-spectra have been determined and, by means of beta-gamma coincidence measurements also most of the Q-values of the following neutron-rich nuclides could be deduced with high accuracy:Cs: (5388±25)keV,Cs: (4213±5)keV,Ba: (2336±25)keV,Cs: (6220±15)keV,Cs: (5252+15/-60)keV,Ba: (3208±35)keV.Cs: (7329±20)keV,Cs: (6287+40/-250)keV,Ba: (4259±40)keV,Cs: (8451±30)keV,Cs: (7358±70)keV.Cs: (9300±900)keV,Ba: (4280±100)keV.La: (6175±100)keV. The results are compared with experimental results of direct mass measurements and some predictions by mass formulae. [ABSTRACT FROM AUTHOR]

Published
1981
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46. Präzise Q-Wert-Messungen mit einem Intrinsic-Germanium Detektor an leichten, neutronenreichen Spaltprodukten.

Author

Decker, R., Wünsch, K., Wollnik, H., Koglin, E., Siegert, G., and Jung, G.

Abstract

An intrinsic Germanium detector of 10 mm depth and 300 mm sensitive area has been used to determine β-endpoint energies for Rb, Sr and Y fission products. It was calibrated with monoenergetic electrons supplied by a magnetic conversion electron spectrometer for the energy range from 1.6 to 8 MeV. The energy calibration of the detector is linear with deviations less than 2 · 10, and the detector was recalibrated daily using precisely known gamma rays ofRb. At the on-line fission product separator OSTIS at the ILL, Grenoble the endpoints of β-singles-spectra have been determined and Q-values deduced if possible also from beta-gamma coincidence measurements. The obtained Q-values are:Rb:(5 318±4) keV,Rb: (4 510 ± 8) keV,Rb: (6 578 ± 15) keV,Rb: (5 857 ± 8) keV,Sr: (2 704.5 ±3) keV,Rb: (8 111 + 15) keV,Rb:(7 485 ± 15) keV,Rb: (10 304 ± 30) keV,Sr: (3 512 ± 5) keV,Y: (4 920 ±5)keV,Rb: (8 947 ±100) keV,Y: (4 445±5) keV,Rb: (11 303±250) keV,Sr: (5 413±20) keV,Y: (7 120 ±50) keV,Rb: (10 020 ±50) keV. [ABSTRACT FROM AUTHOR]

Published
1980
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47. Nuclear spectroscopy of neutron-rich A=143 nuclei.

Author

Schussler, F., Blachot, J., Monnand, E., Fogelberg, B., Feenstra, S., Klinken, J., Jung, G., and Wünsch, K.

Abstract

A study of the beta decay ofCs andBa fission products was undertaken by the use of two on-line mass-separators OSTIS and OSIRIS. Level schemes forBa andLa are deduced from gamma and conversion electron spectra, γ-γ and β-γ coincidences. Q values and ground state beta feedings were also measured. The nucleiLa andBa are tentatively inserted in a systematic of odd-even nuclei around A=143 and even-odd nuclei with 87 neutrons respectively. [ABSTRACT FROM AUTHOR]

Published
1979
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48. Nuclear spectroscopy of neutron-rich A=145 nuclei.

Author

Pfeiffer, B., Schussler, F., Blachot, J., Feenstra, S., Klinken, J., Lawin, H., Monnand, E., Sadler, G., Wollnik, H., and Wünsch, K.

Abstract

A study of the β-decay of neutron-rich A=145 fission products was undertaken by the use of the two recoil separators LOHENGRIN and JOSEF and the ISOL-type separator OSTIS. The β-decaying isotopesBa,La andCe were extensively studied. Level schemes forLa,Ce andPr were deduced from γ and conversion electron spectra, γγ, X γ delayed and βγ coincidences. The Q-values have been measured for theBa,La andCe decays. [ABSTRACT FROM AUTHOR]

Published
1978
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49. PräziseQβ-Wert-Messungen mit einem Intrinsic-Germanium Detektor an leichten, neutronenreichen Spaltprodukten

Author

Decker, R., Wünsch, K. D., Wollnik, H., Koglin, E., Siegert, G., and Jung, G.

Abstract

An intrinsic Germanium detector of 10 mm depth and 300 mm2 sensitive area has been used to determineß-endpoint energies for Rb, Sr and Y fission products. It was calibrated with monoenergetic electrons supplied by a magnetic conversion electron spectrometer for the energy range from 1.6 to 8 MeV. The energy calibration of the detector is linear with deviations less than 2 · 10-4, and the detector was recalibrated daily using precisely known gamma rays of90Rb.

Published
1980
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50. PräziseQβ-Wert-Messungen mit einem Intrinsic-Germanium-Detektor an schweren, neutronenreichen Spaltprodukten

Author

Decker, R., Wünsch, K. D., Wollnik, H., Jung, G., Münzel, J., Siegert, G., and Koglin, E.

Abstract

An intrinsic germanium detector was used to measure the beta endpoint energies of heavy fission products supplied by the on line mass separator OSTIS installed at the high flux reactor of the Institut Max von Laue-Paul Langevin, Grenoble.

Published
1981
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