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The paper deals with the effect of a lowered speed limit on the number of accidents in which there are fatalities, injuries and vehicle damage on Swedish motorways. Two models extending the Poisson and negative binomial count data models are used for estimation. The extended models account for both overdispersion and potential dependence between successive… (More)

- J X Zheng-Johansson, P-I Johansson
- 2006

We set up the classical wave equation for a particle formed of an oscillatory massless charge together with its resulting electromagnetic waves, traveling in a potential field V. We further separate out from this a component equation describing the particle dynamics, which is equivalent to the Schrödinger equation. The solution in this paper is given for a… (More)

- A. Abdesselam, P. J. Adkin, P. P. Allport, J. Alonso, L. Andricek, F. Anghinolfi +209 others
- 2007

The challenges for the tracking detector systems at the LHC are unprecedented in terms of the number of channels, the required read-out speed and the expected radiation levels. The ATLAS Semiconductor Tracker (SCT) end-caps have a total of about 3 million electronics channels each reading out every 25 ns into its own on-chip 3:3 ms buffer. The highest… (More)

- J X Zheng-Johansson, P-I Johansson
- 2005

The following paper " A unification scheme for classical and quantum mechanics at all velocities (I) Fundamental Formation of Material Particles " is a copy of the original two years after, we decide to publish it as is at the E-print server. Within the scheme for material particle formation and vacuum structure and dynamics presented in the paper, numerous… (More)

- A Abdesselam, P P Allport, B Anderson, L Andricek, F Anghinolfi, R J Apsimon +361 others
- 2007

The ATLAS SemiConductor Tracker (SCT) is a silicon-strip tracking detector which forms part of the ATLAS inner detector. The SCT is designed to track charged particles produced in proton-proton collisions at the Large Hadron Collider (LHC) at CERN at an energy of 14 TeV. The tracker is made up of a central barrel and two identical end-caps. The barrel… (More)

- J X Zheng-Johansson, P-I Johansson
- 2006

We establish the classical wave equation for a particle formed of a mass-less oscillatory elementary charge generally also traveling, and the resulting electromagnetic waves, of a generally Doppler-effected angular frequency ω, in the vacuum in three dimensions. We obtain from the solutions the total energy of the particle wave to be ε = ¯ h c ω, 2π¯ h c… (More)

- J X Zheng-Johansson, P-I Johansson
- 2005

We call as by our particle formation scheme an oscillatory charge e (or −e) together with the electromagnetic waves generated by it, of angular frequency ω, as a whole a basic particle. As a direct Newton-Maxwell solution, we obtain straightforwardly for the particle's component wavetrains, traveling at the velocity of light c, a translational kinetic… (More)

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