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Dick J. Hoekzema 《Foundations of Physics》1992,22(4):467-486
A logically complete interpretation of quantum mechanics is given in terms of a theory of quantum processes.Research performed during stays at Utrecht State University, at the Institute for the History and Foundations of Science and at the Department of Philosophy. 相似文献
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Stereochemical dependences of vicinal fluorine-fluorine nuclear magnetic resonance coupling constants (3JFF) have been studied with the multiconfigurational self-consistent field in the restricted active space approach, with the second-order polarization propagator approximation (SOPPA), and with density functional theory. The SOPPA results show the best overall agreement with experimental couplings. The relationship with the dihedral angle between the coupled fluorines has been studied by Fourier analysis, the result is very different from that of proton-proton couplings. The Fourier coefficients do not resemble those of a typical Karplus equation. The four nonrelativistic contributions to the coupling constants of 1,2-difluoroethane configurations have been studied separately showing that up to six Fourier coefficients are required to reproduce the calculated values satisfactorily. Comparison with Fourier coefficients for matching hydrogen fluoride dimer configurations suggests that the higher order Fourier coefficients (Cn> or =3) originate mainly from through-space Fermi contact interaction. The through-space interaction is the main reason 3JFF do not follow the Karplus equation. 相似文献
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Dick Hoekzema 《Foundations of Physics》1987,17(8):787-797
Two types of contextual theories are distinguished and shown to be related. For theories of each type a criterion of locality is formulated which is weaker than the classical requirement of separability at spacelike intervals. The relations between the concepts of locality, realism, and ontic chance are discussed. 相似文献
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D. J. Hoekzema 《International Journal of Theoretical Physics》1996,35(11):2391-2397
A time-symmetric version of quantum mechanics provides a tentative solution of the cosmic age discrepancy in current cosmology. Due to retrocausal effects, the age of old stars is greatly overestimated. 相似文献
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Finken KH Abdullaev SS de Bock MF von Hellermann M Jakubowski M Jaspers R Koslowski HR Krämer-Flecken A Lehnen M Liang Y Nicolai A Wolf RC Zimmermann O de Baar M Bertschinger G Biel W Brezinsek S Busch C Donné AJ Esser HG Farshi E Gerhauser H Giesen B Harting D Hoekzema JA Hogeweij GM Hüttemann PW Jachmich S Jakubowska K Kalupin D Kelly F Kikuchi Y Kirschner A Koch R Korten M Kreter A Krom J Kruezi U Lazaros A Litnovsky A Loozen X Lopes Cardozo NJ Lyssoivan A Marchuk O Matsunaga G Mertens P 《Physical review letters》2005,94(1):015003
The first results of the Dynamic Ergodic Divertor in TEXTOR, when operating in the m/n=3/1 mode configuration, are presented. The deeply penetrating external magnetic field perturbation of this configuration increases the toroidal plasma rotation. Staying below the excitation threshold for the m/n=2/1 tearing mode, this toroidal rotation is always in the direction of the plasma current, even if the toroidal projection of the rotating magnetic field perturbation is in the opposite direction. The observed toroidal rotation direction is consistent with a radial electric field, generated by an enhanced electron transport in the ergodic layers near the resonances of the perturbation. This is an effect different from theoretical predictions, which assume a direct coupling between rotating perturbation and plasma to be the dominant effect of momentum transfer. 相似文献
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Dick J. Hoekzema 《Foundations of Physics》1992,22(4):487-506
This paper explores the possibility of an event interpretation of quantum field theory.Research performed during stays at Utrecht State University at the Institute for the History and Foundations of Science. 相似文献
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Comparison of reversed-phase column materials for high-performance liquid chromatography of proteins
R van der Zee T Hoekzema S Welling-Wester G W Welling 《Journal of chromatography. A》1986,368(2):283-289
Nine reversed-phase materials with various bonded phases from different suppliers were studied for the separation of hydrophilic proteins with two solvent systems. Protein retention, resolution and recovery were not correlated with the nature of the hydrocarbonaceous ligand. Peak volumes increased with molecular weight, which led to broad, irregular peaks for the larger proteins on some columns. Four columns that performed equally well were selected for the purification of hydrophobic Sendai virus membrane proteins. In this case, more distinct differences were found between columns. Recovery of the membrane proteins strongly depended on the combination of column and solvent systems. 相似文献
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Bindslev H Nielsen SK Porte L Hoekzema JA Korsholm SB Meo F Michelsen PK Michelsen S Oosterbeek JW Tsakadze EL Westerhof E Woskov P;TEXTOR team 《Physical review letters》2006,97(20):205005
Here we present the first measurements by collective Thomson scattering of the evolution of fast-ion populations in a magnetically confined fusion plasma. 150 kW and 110 Ghz radiation from a gyrotron were scattered in the TEXTOR tokamak plasma with energetic ions generated by neutral beam injection and ion cyclotron resonance heating. The temporal behavior of the spatially resolved fast-ion velocity distribution is inferred from the received scattered radiation. The fast-ion dynamics at sawteeth and the slowdown after switch off of auxiliary heating is resolved in time. The latter is shown to be in close agreement with modeling results. 相似文献
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