Curvature Constrained Splines for DFTB Repulsive Potential Parametrization

Path planning is one of the most important aspects for ambulance driving. A local dynamic path planning method based on the potential field theory is presented in this paper. The potential field model includes two components—repulsive potential and attractive potential. Repulsive potential includes road potential, lane potential and obstacle potential. Considering the driving distinction between an ambulance and a regular vehicle, especially in congested traffic, an adaptive potential function for a lane line is constructed in association with traffic conditions. The attractive potential is constructed with target potential, lane-velocity potential and tailgating potential. The design of lane-velocity potential is to characterize the influence of velocity on other lanes so as to prevent unnecessary lane-changing behavior for the sake of time-efficiency. The results obtained from simulation demonstrate that the proposed method yields a good performance for ambulance driving in an urban area, which can provide support for designing an ambulance support system for the ambulance personnel and dispatcher.

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Negative thermophoresis of nanoparticles interacting with fluids through a purely-repulsive potential

Journal of Physics Condensed Matter ◽

10.1088/1361-648x/aa9350 ◽

2017 ◽

Vol 29 (47) ◽

pp. 475101 ◽

Cited By ~ 5

Author(s):

Tetsuro Tsuji ◽

Hirotaka Iseki ◽

Itsuo Hanasaki ◽

Satoyuki Kawano

Keyword(s):

Repulsive Potential

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Holographic superfluid flows with a localized repulsive potential

Physical Review D ◽

10.1103/physrevd.94.046007 ◽

2016 ◽

Vol 94 (4) ◽

Author(s):

Akihiro Ishibashi ◽

Kengo Maeda ◽

Takashi Okamura

Keyword(s):

Repulsive Potential

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Argon Repulsive Potential from Collision Cross‐Section Measurements

The Journal of Chemical Physics ◽

10.1063/1.1747676 ◽

1950 ◽

Vol 18 (4) ◽

pp. 525-528 ◽

Cited By ~ 17

Author(s):

I. Amdur ◽

D. E. Davenport ◽

M. C. Kells

Keyword(s):

Cross Section ◽

Collision Cross Section ◽

Repulsive Potential

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Determination of the Na–Hg repulsive potential between 0.5 and 3 eV from the inversion of differential cross section data

The Journal of Chemical Physics ◽

10.1063/1.440924 ◽

1981 ◽

Vol 74 (10) ◽

pp. 5613-5617 ◽

Cited By ~ 12

Author(s):

L. Hüwel ◽

J. Maier ◽

H. Pauly

Keyword(s):

Differential Cross Section ◽

Cross Section ◽

Differential Cross ◽

Cross Section Data ◽

Repulsive Potential ◽

Section Data

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Repulsive potential peaks

Journal of Physics B Atomic Molecular and Optical Physics ◽

10.1088/1361-6455/aae020 ◽

2018 ◽

Vol 51 (21) ◽

pp. 215101 ◽

Cited By ~ 1

Author(s):

Jianing Han

Keyword(s):

Repulsive Potential

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Electronic polarizabilities, ionic radii, and repulsive potential parameters for diatomic alkali halide molecules

Canadian Journal of Physics ◽

10.1139/p80-130 ◽

1980 ◽

Vol 58 (7) ◽

pp. 950-956 ◽

Cited By ~ 11

Author(s):

Jai Shanker ◽

H. B. Agrawal

Keyword(s):

Alkali Halide ◽

Dipole Moments ◽

Inverse Power ◽

Exponential Dependence ◽

Molecular Constants ◽

Repulsive Potential ◽

Ionic Radii ◽

Internuclear Distances ◽

Potential Parameters ◽

Level Analysis

The electronic polarizabilities of ions in diatomic alkali halide molecules calculated using the Seitz–Ruffa energy level analysis are found to agree closely with those recently estimated by Brumer and Karplus utilizing the exchange perturbation theory. A sensible test of these polarizabilities has been presented by calculating the molecular properties like dipole moments. Ionic radii for alkali and halogen ions appropriate to diatomic molecules are determined using the relation between size and effective nuclear charges. The radii thus evaluated are found to be nearly additive and reproduce the internuclear distances within about ± 0.10 Å for all the alkali halide molecules except for RbF and CsF. An analysis of interaction energies in alkali halide molecules is presented by adopting two potential forms for the repulsive energy showing, respectively, the inverse power dependence and exponential dependence on internuclear distance. The additivity of repulsive potential parameters is discussed in the light of recent investigations. The results for the molecular constants obtained from the exponential form are in much better agreement with experiment than those estimated from the inverse power form.

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