Orbitally driven

The Fe/Ca ratio in an ODP core from the western North Atlantic has been used as an index of orbitally driven climate change allowing deconvolution of the orbital forcing pattern and extension back to the Late Eocene. In this time period the timing of orbital pattern was used for fine-mning of the magnetic-reversal record (Palike et al., 2001). 

H. Koch, O. Christiansen, R. Kobayashi, P. Jorgensen, and T. Helgaker, Chem. Phys. Lett., 228, 233 (1994). A Direct Atomic Orbital Driven Implementation of the Coupled Cluster Singles and Doubles (CCSD) Model. 

To summarize this subsection, we have shown that, in principle, a unidirectional motion of a functional molecular group can be induced by LCT fields. Quantum calculations revealed that it is possible to trigger a rotational dynamics in one or the other direction. The quantum dynamics is very much alike to that of a swarm of classical trajectories. This proves that the intuitive picture of a single-particle orbit driven out of the potential wells is valid. In particular, a change of the field strength triggers a hindered rotation that can be timed to move the then freely rotating particle selectively in the counterclockwise or clockwise direction. We have not addressed the role of the overall molecular orientation with respect to the direction of the external field... 

For concentrated Kondo systems orbitally driven anisotropic hybridization of the f electrons with conduction electrons is crucial (Cooper et al. 1988, Levy and Zhang 1989). The anisotropic part of the mixing interaction causes a substructure within the rather narrow f band, which leads to crystal-field effects even in highly itinerant-electron systems. On account of this crystal-field dressing a localized 5f electron in NpSnj might develop. 

Historically, CHF, was favoured over RPA since it could be solved in the atomic orbital basis (Diercksen and McWeeny, 1966), rather than requiring a transformation to the molecular orbital basis. The need for an inverse Hessian in RPA/SOPPA also restricted the size of system that could be studied. However, the use of direct atomic-orbital-driven methods for RPA response properties (Feyereisen et al, 1992) and for SOPPA (Bak et al., 2000 Christiansen et al., 1998a), coupled with iterative methods for solving the inverse Hessian, mean that they can now be applied as widely as CHF/TDHF and provide far more information about excited states and properties. 

Koch, H., Christiansen, O., Kobayashi, R., Jprgensen, P., and Helgaker, T. (1994). A direct atomic orbital driven implementation of the coupled cluster singles and doubles (CCSD) model. Chem. Phys. Lett, 228, 233-238. 

In the nonrelativistic case much has been, and continues to be, learned about the outcome of nonadiabatic processes from the locus and topography of seams of conical intersection. It will now be possible to describe nonadiabatic processes driven by conical intersections, for which the spin-orbit interaction cannot be neglected, on the same footing that has been so useful in the nonrelativistic case. This fully adiabatic approach offers both conceptual and potential computational... 

The suction gas which enters from the periphery is trapped by the scrolls. The closed volumes move radially inward until the discharge port is reached, when vapor is pressed out. The orbiting scroll is driven by a short-throw crank mechanism. Similar to screw compressors, internal leakage should be kept low, and is occurring in gaps between cylindrical surfaces and between the tips of the involute and the opposing scroll base plate. 

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