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Conjugate spinning

Note incidentally that for a charge self-conjugate spin 0 field, i.e., one for which particle and antiparticle are identical (e.g., the it0 system) so that a = 6 and = , the current operator ju vanishes identically. [Pg.517]

I will now compute the most probable value of the freeon quantum number, p by means of the canonical partition function. Here it is finally necessary to acknowledge the existence of the conjugate spin space whose dimension (statistical weight) is... [Pg.33]

PP/silver nanocomposite fibres were prepared with the aim of achieving permanent antibacterial activity in a common synthetic textile. The fibres were melt-spun by coextmsion of PP and PP/silver masteibatches using general conjugate spinning. Masteibatches were made up of a mixture of PP chips and nano-sized silver powder. The antibacterial efficacy of spun fibres was high when the masteibatch was used as the sheath rather than the core. The antibacterial activity of nano-silver in fibres was evaluated after a certain contact time and calculated by percent reduction of two types of bacteria. Staphylococcus aureus and Klebsiela pneumoniae. DSC and wide-angle X-ray diffraction were used for analysis of stractuie, thermal properties and crystallisation behaviour of the spun fibres. SEM was carried out in order to observe particle distribution on the nanocomposite fibres. 17 refs. (2nd International Conference on Polymer Fibres, Manchester, UK, July 2002)... [Pg.49]

It is common to use an alternative notation for the electron-electron interaction integrals (rr ss ) = (rs r s ), i.e., with the complex conjugate spin orbitals, belonging to the operators, on the left. One can introduce the compact notation (rs tu) = (rs fn) — rs vt) for an antisymmetric interaction integral and write... [Pg.21]

Im et al (2007) have developed a manufacturing technique to produce monofilament sutures by a conjugate spinning method. Two absorbable polymers, PDS and a copolymer of / -dioxanone, trimethylene carbonate and e-caprolactone were used in this spinning method. The resulting bicomponent monofilament suture fiber (MonoFlex ) has 97 mol% / -dioxanone and exhibits the sea/islands type cross-sectional morphology shown in Fig. 11.2. These sea/island type bicomponent materials can place many fine strands... [Pg.305]

Note that in this notation spin orbitals, which are functions of the coordinate of electron-one, appear side by side on the left and the complex conjugated spin orbital appears first. By interchanging the dummy variables of integration, one has... [Pg.67]

Figure 2.15 Crimping—bulking fibers made by conjugate spinning [39]. Figure 2.15 Crimping—bulking fibers made by conjugate spinning [39].
Can you image that we can reach from the earth to the moon with a total weight of 4.16 g ultra microfiber But it is tme. This microfiber contains about 40,000 polymer molecules in its cross section [44]. Textile Terms and Definitions [44] simply describes ultra microfiber as fibers or filaments with linear densities of approximately 1.0 dtex or less. By the conjugate spinning process, we can obtain different ultrafine fibers, like Sea Island type, separation type, and multilayer type (Fig. 2.17). [Pg.57]


See other pages where Conjugate spinning is mentioned: [Pg.282]    [Pg.284]    [Pg.628]    [Pg.29]    [Pg.67]    [Pg.5]    [Pg.919]    [Pg.305]    [Pg.320]    [Pg.67]    [Pg.30]    [Pg.51]    [Pg.54]    [Pg.55]    [Pg.239]    [Pg.305]    [Pg.320]    [Pg.375]    [Pg.25]    [Pg.117]   
See also in sourсe #XX -- [ Pg.919 ]




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