Core spinning

Fe402 core, spin structure, 43 310 [FejOfOAcljtpbnlj, structure, 43 310-311 (Fe2O(O5P(OC4H,))2(Me,[9]aneN,)2]2 40 376-yii... 

This model assumes that the Mn ions occupy the sites of a cubic lattice (taken to be of unit lattice parameters), while the dopant A ions occupy an x fraction of the body centre sites of each unit cube formed by the Mn ions. Since the aim is to study the effect of long-range Coulomb interactions on phase separation, we make further simplifying assumptions. It is assumed that the t2g core spins are aligned ferromagnetically and that Jh-> 00 this effectively projects out or b electron spin opposite to that of the t2g core spins—we obtain an effectively spinless model. The above considerations lead us to the following extended b Hamiltonian... 

When orbitals are contracted in the core, spin-orbit effects are much greater and many p, d, and f core ionization spectra show multiplet structure. 

Common varieties of elastomeric yams in sportswear include covered and core elastomeric yam for high stretch requirements and textured yam for low to medium elasticity applications. The processing technology for making elastomeric yams is mainly based on conventional methods such as core spinning, cover twisting, and air texturing. 

The most commonly used method is called core spinning, in which staple fibers are wrapped around a hidden core. It produces chunky novelty yam, although the end weight of the yam depends on the core material used. The elastic fiber is used as core, which is wrapped with other fibers such as nylon, rayon, and cotton. It can be produced on regular ring spinning machines with special feeder rollers and guiding devices (Senthilkumar et ah, 2011). 

The classification of the composite yams is shown in Fig. 7.12. Several systems exist to manufacture the different types of composite yams. Some of the well-known systems are DREF spinning types I, II, and III, wrap spinning, modified ring spinning, modified core spinning, and braided yams. " "... 

The reference space (reference determinants) define the partition of the spin-orbital space into three groups (Fig. 3.1). These groups are the core, active (or valence), and virtual (excited) spin-orbital subspaces. The core spin-orbitals are those which are occupied in all determinants in the reference (model) space the virtual (excited) spin-orbitals are not occupied in any reference determinant (these are empty spin-orbitals), and the active (valence) spin-orbitals are those which are occupied in at least one reference determinant and unoccupied in at least one other determinant. All possible different distributions of the valence (active) electrons among the active (valence) spin-orbitals generate all determinants of the complete model (reference) space. 

When ET occurs between TMCs with paramagnetic cores, the spatial coupling element may be scaled by a factor, /(5c, 5), depending on the spin quantum number of each core (taken here as Sc for both cores) and the overall spin quantum number (5) of the DBA system (including the spin of the transferring electron, assumed to be high-spin coupled to each core spin), ... 

On comparing the individual splittings due to the core spin-orbit interaction to... 

Our present interest is in the case of spins interacting through an electron liquid, for which the direct term is just the dipolar interaction. The material-mediated term depends on the interaction between the core spin S and die conduction electrons. It is usually assigned the model form... 

Here p(r) is a nuclear density a and j are nucleon and core spins. 

Samuelson, H.V., 1993. Sheath-core spinning of multilobal conductive core filaments. U.S. Patent 5,202,185. 

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