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The new type of thermal head with an electroless Ni-W-P film on a polyimide film substrate was investigated for the purpose of low cost and low energy consumption. The electroless plating method attained a fine patterned heating element and the polyimide substrate worked as a heat-insulating layer with a lower heat conductivity. In our simulation, the applied power was reduced about 50% by using polyimide film as the heat-insulating layer. The accumulation of heat could be suppressed by controlling the polyimide film thickness without reducing the advantage of low energy consumption. The new head, composed of screen-printed polyimide resin with SiC powder (10 ~m thick) as the protective layer, an electroless Ni-W-P film (0.25 i~m thick) as the heating element, a polyimide film (50 i~m thick) as the heat-insulating layer, and an A1 board (3.0 mm) as the heat sink, was produced. The new head shows the same dot size as that of the conventional thin-film-type head produced by vacuum technology, and its cost is lower than that of the conventional thin-film-type head. The new head produces the good printing quality with 60% of the power required by the conventional one. Therefore, the new head provides low cost and low energy consumption.

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that the penultimate tyrosine residues of the ß chains in Hb Hiroshima undergo environmental changes similar to those which occur in Hb A during oxygenation. The intrinsic microscopic equilibrium constant for the fourth stage of oxygenation, lu, for Hb Hiroshima is insensitive to the concentration of DPG and nearly equal to that for Hb A, whereas the constant for the first stage of oxygenation, ku decreases on the addition of DPG and is always larger than that of Hb A, irrespective of DPG concentration, indicating that deoxy-Hb Hiroshima probably assumes a more unconstrained form than deoxy-Hb A. The reaction rates of 4,4'-dipyridine disulfide with the sulfhydryl groups of oxy-and deoxy-Hb Hiroshima were more rapid than for Hb A, particularly that of the deoxy form. Electron paramagnetic resonance spectra of NO-Hb Hiroshima are identical with those of NO-Hb A. Bohr effect about half that of Hb A, and reduced heme-heme interaction (Hill's constant, 2.0-2.6, compared to 3.0 for Hb A) (Imai, 1968). The carriers of this hemoglobin have no apparent clinical symptoms save a mild erythrocytosis in com-Clinical Laboratories, Atomic Bomb Casualty Commission. The Commission is a cooperative research agency of the U.

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Josephson critical current densities J c between a single crystal UPt 3 and an s-wave superconductor have been investigated for UPt 3 -Cu-Nb junctions and UPt 3 -Nb junctions. The anisotropic temperature dependence is observed at about the lower critical temperature T 2 c of UPt 3 ; the increase in J c with decreasing temperatures becomes fast below T 2 c for a current flow parallel to the crystallographic c axis and it becomes rather slow below T 2 c for a current flow parallel to the b axis. This anisotropy gives clear evidence that the Josephson effect reflects the anisotropic superconductivity of UPt 3 .[S0031-9007 (98)07805-3] PACS numbers: 74.50. + r, 74.70.Tx, 74.80.Fp