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  • Polymer and Materials Science  (11)
  • Coupled HPLC-GC  (3)
  • Nuclear Reactions  (3)
  • Cosmic Dust  (2)
  • 1
    Publication Date: 2016-08-26
    Description: Author(s): J. F. Liang (梁君健), J. M. Allmond, C. J. Gross, P. E. Mueller, D. Shapira, R. L. Varner, M. Dasgupta, D. J. Hinde, C. Simenel, E. Williams, K. Vo-Phuoc, M. L. Brown, I. P. Carter, M. Evers, D. H. Luong, T. Ebadi, and A. Wakhle Background: The presence of neutron transfer channels with positive Q values can enhance sub-barrier fusion cross sections. Recent measurements of the fusion excitation functions for Ni 58 + Sn 132 , 124 found that the fusion enhancement due to the influence of neutron transfer is smaller than that in Ca 4… [Phys. Rev. C 94, 024616] Published Wed Aug 24, 2016
    Keywords: Nuclear Reactions
    Print ISSN: 0556-2813
    Electronic ISSN: 1089-490X
    Topics: Physics
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  • 2
    Publication Date: 2012-03-03
    Description: Author(s): J. F. Liang (梁君健), C. J. Gross, Z. Kohley, D. Shapira, R. L. Varner, J. M. Allmond, A. L. Caraley, K. Lagergren, and P. E. Mueller Evaporation residue cross sections for 124,126,127,128 Sn+ 64 Ni and 132 Sn+ 58 Ni have been measured to study the effects of neutron excess in neutron-rich radioactive nuclei on the fusion probability. A comparison of the reduced evaporation residue cross sections for 126 Sn+ 64 Ni and 132 Sn+ 58 Ni , which mak... [Phys. Rev. C 85, 031601] Published Fri Mar 02, 2012
    Keywords: Nuclear Reactions
    Print ISSN: 0556-2813
    Electronic ISSN: 1089-490X
    Topics: Physics
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  • 3
    Publication Date: 1997-08-01
    Description: Images of comet C/1996 B2 (Hyakutake) taken during its close approach to Earth show differences in the distribution of gas and dust in the inner coma and reveal two arc-shaped molecular resonant emission features. The morphology of these features, as well as the apparent decoupling gas from dust in the inner coma, suggest that an extended region of icy grains surrounds the nucleus of Hyakutake and contributes substantially to the production of volatiles. Model simulations suggest the same conclusion and indicate that the brighter arc is explainable by the presence of a trailing condensation of ice-bearing granules with a rate of volatile production approximately 23 percent of that of the nucleus.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Harris, W M -- Combi, M R -- Honeycutt, R K -- Mueller, B E -- Scherb, F -- New York, N.Y. -- Science. 1997 Aug 1;277(5326):676-81.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Space Astronomy Laboratory, University of Wisconsin, 1150 University Avenue, Madison, WI 53706, USA. wharris@sal.wisc.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9235888" target="_blank"〉PubMed〈/a〉
    Keywords: Cosmic Dust ; *Gases ; Ice ; *Meteoroids ; Water
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 4
    Publication Date: 2005-09-10
    Description: On 4 July 2005, many observatories around the world and in space observed the collision of Deep Impact with comet 9P/Tempel 1 or its aftermath. This was an unprecedented coordinated observational campaign. These data show that (i) there was new material after impact that was compositionally different from that seen before impact; (ii) the ratio of dust mass to gas mass in the ejecta was much larger than before impact; (iii) the new activity did not last more than a few days, and by 9 July the comet's behavior was indistinguishable from its pre-impact behavior; and (iv) there were interesting transient phenomena that may be correlated with cratering physics.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Meech, K J -- Ageorges, N -- A'Hearn, M F -- Arpigny, C -- Ates, A -- Aycock, J -- Bagnulo, S -- Bailey, J -- Barber, R -- Barrera, L -- Barrena, R -- Bauer, J M -- Belton, M J S -- Bensch, F -- Bhattacharya, B -- Biver, N -- Blake, G -- Bockelee-Morvan, D -- Boehnhardt, H -- Bonev, B P -- Bonev, T -- Buie, M W -- Burton, M G -- Butner, H M -- Cabanac, R -- Campbell, R -- Campins, H -- Capria, M T -- Carroll, T -- Chaffee, F -- Charnley, S B -- Cleis, R -- Coates, A -- Cochran, A -- Colom, P -- Conrad, A -- Coulson, I M -- Crovisier, J -- deBuizer, J -- Dekany, R -- de Leon, J -- Dello Russo, N -- Delsanti, A -- DiSanti, M -- Drummond, J -- Dundon, L -- Etzel, P B -- Farnham, T L -- Feldman, P -- Fernandez, Y R -- Filipovic, M D -- Fisher, S -- Fitzsimmons, A -- Fong, D -- Fugate, R -- Fujiwara, H -- Fujiyoshi, T -- Furusho, R -- Fuse, T -- Gibb, E -- Groussin, O -- Gulkis, S -- Gurwell, M -- Hadamcik, E -- Hainaut, O -- Harker, D -- Harrington, D -- Harwit, M -- Hasegawa, S -- Hergenrother, C W -- Hirst, P -- Hodapp, K -- Honda, M -- Howell, E S -- Hutsemekers, D -- Iono, D -- Ip, W-H -- Jackson, W -- Jehin, E -- Jiang, Z J -- Jones, G H -- Jones, P A -- Kadono, T -- Kamath, U W -- Kaufl, H U -- Kasuga, T -- Kawakita, H -- Kelley, M S -- Kerber, F -- Kidger, M -- Kinoshita, D -- Knight, M -- Lara, L -- Larson, S M -- Lederer, S -- Lee, C-F -- Levasseur-Regourd, A C -- Li, J Y -- Li, Q-S -- Licandro, J -- Lin, Z-Y -- Lisse, C M -- LoCurto, G -- Lovell, A J -- Lowry, S C -- Lyke, J -- Lynch, D -- Ma, J -- Magee-Sauer, K -- Maheswar, G -- Manfroid, J -- Marco, O -- Martin, P -- Melnick, G -- Miller, S -- Miyata, T -- Moriarty-Schieven, G H -- Moskovitz, N -- Mueller, B E A -- Mumma, M J -- Muneer, S -- Neufeld, D A -- Ootsubo, T -- Osip, D -- Pandea, S K -- Pantin, E -- Paterno-Mahler, R -- Patten, B -- Penprase, B E -- Peck, A -- Petitas, G -- Pinilla-Alonso, N -- Pittichova, J -- Pompei, E -- Prabhu, T P -- Qi, C -- Rao, R -- Rauer, H -- Reitsema, H -- Rodgers, S D -- Rodriguez, P -- Ruane, R -- Ruch, G -- Rujopakarn, W -- Sahu, D K -- Sako, S -- Sakon, I -- Samarasinha, N -- Sarkissian, J M -- Saviane, I -- Schirmer, M -- Schultz, P -- Schulz, R -- Seitzer, P -- Sekiguchi, T -- Selman, F -- Serra-Ricart, M -- Sharp, R -- Snell, R L -- Snodgrass, C -- Stallard, T -- Stecklein, G -- Sterken, C -- Stuwe, J A -- Sugita, S -- Sumner, M -- Suntzeff, N -- Swaters, R -- Takakuwa, S -- Takato, N -- Thomas-Osip, J -- Thompson, E -- Tokunaga, A T -- Tozzi, G P -- Tran, H -- Troy, M -- Trujillo, C -- Van Cleve, J -- Vasundhara, R -- Vazquez, R -- Vilas, F -- Villanueva, G -- von Braun, K -- Vora, P -- Wainscoat, R J -- Walsh, K -- Watanabe, J -- Weaver, H A -- Weaver, W -- Weiler, M -- Weissman, P R -- Welsh, W F -- Wilner, D -- Wolk, S -- Womack, M -- Wooden, D -- Woodney, L M -- Woodward, C -- Wu, Z-Y -- Wu, J-H -- Yamashita, T -- Yang, B -- Yang, Y-B -- Yokogawa, S -- Zook, A C -- Zauderer, A -- Zhao, X -- Zhou, X -- Zucconi, J-M -- New York, N.Y. -- Science. 2005 Oct 14;310(5746):265-9. Epub 2005 Sep 8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute for Astronomy, University of Hawaii at Manoa, 2680 Woodlawn Drive, Honolulu, HI 96822, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/16150977" target="_blank"〉PubMed〈/a〉
    Keywords: Cosmic Dust ; Jupiter ; *Meteoroids ; Organic Chemicals ; Photometry
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 5
    Publication Date: 2013-06-27
    Description: Author(s): Z. Kohley, J. F. Liang, D. Shapira, C. J. Gross, R. L. Varner, J. M. Allmond, J. J. Kolata, P. E. Mueller, and A. Roberts The fusion cross sections of radioactive 134 Te + 40 Ca were measured at energies above and below the Coulomb barrier. The evaporation residues produced in the reaction were detected in a zero-degree ionization chamber providing high efficiency for inverse kinematics. Both coupled-channel calculations... [Phys. Rev. C 87, 064612] Published Wed Jun 26, 2013
    Keywords: Nuclear Reactions
    Print ISSN: 0556-2813
    Electronic ISSN: 1089-490X
    Topics: Physics
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  • 6
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Angewandte Makromolekulare Chemie 75 (1979), S. 167-175 
    ISSN: 0003-3146
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Description / Table of Contents: The crazing of two rubber-toughened plastics (ABS, HIPS) is investigated by measuring the small angle x-ray scattering (SAXS) during a tensile deformation. In both systems the onset of crazing is observed near the yield-maximum if the samples are continuously strained. The craze-rate of HIPS is much higher than that of ABS and after unloading HIPS shows a considerable recovery in contrast to ABS. The application of SAXS to the characterization of craze-phenomena is compared with that of other methods.
    Notes: An zwei schlagfesten Mehrphasensystemen (ABS, HIPS) wird das Crazing durch Messung der Röntgenkleinwinkelstreuung bei einer mechanischen Verformung verfolgt. In beiden Systemen setzt bei kontinuierlicher Zugbeanspruchung unmittelbar in der Nähe des Yield-Maximums eine starke Craze-Bildung ein. Beim schlagfesten Polystyrol (HIPS) findet man eine in Vergleich zum ABS wesentlich höhere Craze-Rate und nach Entlastung eine ausgeprägtere Reversibilität des Crazings. Die Aussagemöglichkeiten der Röntgenkleinwinkelstreuung zur Craze-Charakterisierung werden mit denen anderer Methoden verglichen.
    Additional Material: 6 Ill.
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  • 7
    ISSN: 0003-3146
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Description / Table of Contents: Blockcopolyethers of ethylene oxide (EO) and propylene oxide (PO) are molecular homogeneous in the dry state. When water is added most of it is physically bonded to the EO blocks. This leads to a considerable increase of the viscosity. At higher water concentrations the system forms a thermoreversible gel. It could be demonstrated by quantitative Small Angle X-Ray Scattering that a progressive microphase separation takes place. In this process a stochimoetric 1 : 1-complex of ethylene oxide and water plays an important role. The gelation ist correlated with the appearance of a lamellar order, i.e. an amphiphilic liquid crystalline phase. This long range supermolecular structure has to be regarded as the reason for the elastic behavior of the systems at high water concentrations.
    Notes: Blockcopolyether aus Ethylenoxid (EO) und Propylenoxid (PO) bilden im wasserfreien Zustand einphasige Systeme. In Gegenwart von Wasser findet eine weitgehend selektive Solvatisierung der EO-Blöcke statt. Diese führt zu einem starken Viskositätsanstieg und bei höheren Wassergehalten zur Bildung eines thermoreversiblen Gels. Durch quantitative Röntgenkleinwinkelmessungen konnte gezeigt werden, daß sich mit steigendem Wassergehalt in zunehmendem Maße eine Mikrophasenbildung vollzieht, wobei dem 1 : 1-Komplex aus Ethylen-oxid und Wasser eine besondere Bedeutung zukommt. Die Gelbildung ist verknüpft mit dem Auftreten einer lamellaren Struktur, die eine amphiphile LC-Phase darstellt. Diese weitreichende übermolekulare Ordnungsstruktur ist als Ursache für die elastischen Eigen-schaften solcher Systeme anzusehen.
    Additional Material: 15 Ill.
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  • 8
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Chemie Ingenieur Technik - CIT 66 (1994), S. 1171-1171 
    ISSN: 0009-286X
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
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  • 9
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Materialwissenschaft und Werkstofftechnik 17 (1986), S. 120-126 
    ISSN: 0933-5137
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: Investigations on the Creep Behaviour of a X 20 CrMoV 12 1 Bend, Fabricated by an Inductive Pipe Bending MachineA bend with a bend radius of 1700 mm -350 mm outer diameter and 25 mm wall thickness - of a X 20 CrMo V 12 1 steel, fabricated by an inductive pipe bending machine at 1050-900 °C deformation temperature was investigated. Heat treatment after fabrication: air cooling from 1050 °C, following a 2 hour annealing at 770 °C with air cooling. In addition to the usual mechanical and technological tests at ambient temperature and 530 °C, creep tests were conducted at 530 °C with unnotched and notched specimens. For comparison a straight pipe with the same dimensions was proofed, too.
    Notes: Ein Rohrbogen mit einem Biegeradius von 1700 mm - bei einem Rohraußendurchmesser von 350 mm und einer Wanddicke von etwa 25 mm - wurde aus dem warmfesten Röhrenstahl X 20 CrMo V 12 1, W.-Nr. 1.4922, nach dem Induktivbiegeverfahren bei einer Verformungstemperatur von 1050 bis 900 °C hergestellt. Die nachfolgende Wärmebehandlung erfolgte bei 1050 °C/Luft + 770 °C/2 h/Luft.Neben den üblichen mechanischen und mechanisch-technologischen Untersuchungen bei Raumtemperatur und bei 530 °C wurden auch Zeitstandversuche mit glatten und gekerbten Proben bei 530 °C durchgeführt. Zum Vergleich wurde auch ein gerades Rohr mit den gleichen Abmessungen zur Prüfung herangezogen.Alle ermittelten Werte entsprechen den Gewährleistungswerten. Rohrbogen und Rohr weisen auch nach langer Laufzeit noch hohe Werte der Duktilität auf.
    Additional Material: 9 Ill.
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  • 10
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Materialwissenschaft und Werkstofftechnik 29 (1998), S. 254-257 
    ISSN: 0933-5137
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: Measurement of three-dimensional residual stresses at rolled bars with high hardnessBars out of 56 Ni Cr Mo V 7, a diameter of 63 mm and a length of 100 mm were rolled with a force of 12 kN and 27 kN. The hardness of the bars was 2150 N/mm2. In 8 different direction along the surface the residual stresses were determined with the help of x-ray diffraction. This was done several times after electrolytic reduction of the material at the measuring zone to get a stress profile in dependence of the depth. Afterwards in two dimensions along the surface and perpendicular to the surface the residual stresses inclusive the shear stresses were determined. High compressive residual stresses were along the surface, but therefore tensile residual stresses were perpendicular to the surface at a zone of around 1.5 mm depth. A comparison of the residual stresses with stresses induced by shot peening is done.
    Notes: Bei der Bestimmung der 3dimensionalen Eigenspannungszustände zeigt sich, daß die einzelnen Eigenspannungsverläufe miteinander korrespondieren. Die Druckeigenspannungsbereich reicht beim Festwalzen bis in eine Tiefe von 2 mm, wobei sich ein Druckeigenspannungsplateau im Bereich ab 0,5 mm Tiefe für mehre Zehntel Millimeter ausbildet. Bei F=27 kN sind die Effekte entsprechend ausgeprägter. Im Vergleich zum Festwalzen ist beim Kugelstrahlen die Druckeigenspannung im Bereich bis 0.5 mm Tiefe zu finden.
    Additional Material: 9 Ill.
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