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Träfflista för sökning "LAR1:cth srt2:(1990-1999)"

Search: LAR1:cth > (1990-1999)

  • Result 131-140 of 5719
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131.
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132.
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133.
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134.
  • Aleksandrov, D., et al. (author)
  • Invariant mass spectrum and alpha-n correlation function studied in the fragmentation of He-6 on a carbon target
  • 1998
  • In: Nuclear Physics A. - 0375-9474. ; 633:2, s. 234-246
  • Journal article (peer-reviewed)abstract
    • Momentum distributions and invariant mass spectra from the breakup of He-6 ions with an energy of 240 MeV/u interacting with a carbon target have been studied. The data were used to extract information about the reaction mechanism which is influenced by the structure of He-6. It is found that the dominant reaction mechanism is a two-step process: knock out of one neutron followed by the decay of the He-5 resonance. The shape of the (alpha+n) two-body invariant mass spectrum is interpreted as mainly reflecting the 5He ground state which is a J(pi) = 3/2(-) resonance. However, no evidence for correlations between cu particles and neutrons is observed in the momentum widths of the distributions. It is demonstrated that a combined analysis of the two-body invariant mass spectrum and an appropriate correlation function may be used to determine the properties of the intermediate resonance. (C) 1998 Elsevier Science B.V.
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135.
  • Alén, Claes, 1949 (author)
  • On Probability in Geotechnics. Random Calculation Models Exemplified on Slope Stability Analysis and Ground-Superstructure Interaction
  • 1998
  • Doctoral thesis (other academic/artistic)abstract
    • The thesis deals with uncertainty in calculation modelling. Emphasis is put on the design state. Design is a chain of decisions under uncertainty. A probabilistic approach is used to describe the uncertainty and calculations as a way to reveal the uncertainty. Thus, a calculation method becomes an operative tool in a risk analysis, not merely a verification of a prescribed minimum level. The work is a combination of elements from three different academic disciplines; geotechnics, structural mechanics and statistics. Different aspects from two fields of geotechnical modelling are discussed; slope stability as an example of ultimate limit state problems, and interaction ground /superstructure as an example of serviceability limit state problems. For the mathematical solution different algorithms are used; mathematical analysis, point estimate method, Monte-Carlo simulation and reliability analysis. Soil properties are described as random variables. Different uncertainties are accounted for; natural variations, systematic testing errors, random testing errors and errors due to limited testing. Pre-knowledge and test results are combined systematically using Bayesian statistics. Three different levels of complexity of both slope stability analysis and ground/superstructure interaction are given. In both cases, structural models of the soil are given for the third level. For a slope a constant degree of mobilisation is not a prerequisite. Instead the deformation properties of the soil are considered. In the interaction analysis the soil is described as a continuous shear beam on elastic supports. The structural model of the soil can be calibrated against a more rigorous geotechnical model. To determine volumetric creep deformations in clay a simple creep model is presented, in which the soil deformations can be determined as a sum of elastic/plastic deformations and creep deformations.
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  • Result 131-140 of 5719
Type of publication
journal article (1772)
conference paper (1390)
licentiate thesis (857)
doctoral thesis (839)
reports (460)
other publication (163)
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book chapter (132)
book (70)
editorial collection (28)
research review (6)
patent (2)
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Type of content
other academic/artistic (2908)
peer-reviewed (2811)
Author/Editor
Wiberg, Nils-Erik, 1 ... (145)
Nordén, Bengt, 1945 (139)
Leckner, Bo G, 1936 (136)
Engström, Tomas, 195 ... (97)
Kildal, Per-Simon, 1 ... (89)
Lennartson, Bengt, 1 ... (76)
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Svensson, Arne, 1955 (72)
Skarnemark, Gunnar, ... (71)
Berntsson, Thore, 19 ... (70)
Medbo, Lars, 1957 (55)
Bengtsson, Stefan, 1 ... (53)
Panas, Itai, 1959 (51)
Gadde, Lars-Erik, 19 ... (46)
Gevorgian, Spartak, ... (43)
Löfdahl, Lennart, 19 ... (43)
Ottosson Gadd, Tony, ... (43)
Stemme, Göran, 1958 (43)
Skoglundh, Magnus, 1 ... (42)
Sandberg, Ann-Sofie, ... (41)
Åmand, Lars-Erik, 19 ... (41)
Fabian, Martin, 1960 (40)
Johansson, Mats, 195 ... (39)
Vamling, Lennart, 19 ... (39)
Runesson, Kenneth, 1 ... (38)
Viberg, Mats, 1961 (38)
Bohlin, Erik, 1961 (37)
Karlsson, Magnus, 19 ... (37)
Pedersen, Karsten, 1 ... (37)
Woxenius, Johan, 196 ... (36)
Jonson, Björn, 1941 (36)
Karlsson, MariAnne, ... (36)
Molander, Sverker, 1 ... (35)
Johnsson, Filip, 196 ... (34)
Larsson, Lars, 1945 (34)
Sipus, Zvonimir, 196 ... (34)
Nyman, Göran Hugo, 1 ... (33)
Tittus, Michael, 196 ... (33)
Nilsson, Thomas, 196 ... (32)
Patriksson, Michael, ... (32)
Samuelsson, Alf, 192 ... (32)
Cederwall, Martin, 1 ... (31)
Jacobsson, Per, 1958 (31)
Hedelin, Per, 1948 (31)
Riisager, K. (31)
Jonsson, Dan, 1942 (31)
Niklasson, Claes, 19 ... (30)
Enoksson, Peter, 195 ... (30)
Albinsson, Bo, 1963 (30)
Kollberg, Erik, 1937 (30)
Berbyuk, Viktor, 195 ... (30)
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University
Chalmers University of Technology (5719)
University of Gothenburg (491)
RISE (37)
Jönköping University (25)
Royal Institute of Technology (15)
Lund University (12)
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Uppsala University (11)
Luleå University of Technology (7)
Karolinska Institutet (7)
Linköping University (3)
VTI - The Swedish National Road and Transport Research Institute (3)
Halmstad University (2)
Mid Sweden University (2)
Linnaeus University (2)
Blekinge Institute of Technology (2)
Umeå University (1)
Stockholm University (1)
University West (1)
University of Skövde (1)
University of Borås (1)
Karlstad University (1)
Red Cross University College (1)
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Language
English (5345)
Swedish (348)
German (13)
French (6)
Russian (2)
Undefined language (2)
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Norwegian (1)
Spanish (1)
Japanese (1)
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Research subject (UKÄ/SCB)
Engineering and Technology (3219)
Natural sciences (2559)
Social Sciences (168)
Medical and Health Sciences (99)
Humanities (83)
Agricultural Sciences (50)

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