No abstract available

[en] The strategic plan is being implemented for Zion and consists of the following steps: 1) sleeve tube-sheet degraded tubes instead of plugging, 2) plug tubes degraded at locations other than the tubesheet, 3) replace the anti-vibration bars, 4) evaluate steam generator replacement on a preliminary basis, 5) continue the 100% eddy current inspection program currently in place, and 6) continue joint utility/EPRI efforts on improving steam generator availability, reliability and repair

[en] Earlier experiments on use of gas wall-jets as a means of reducing shunt current losses and liquid metal boundary layers are critically reevaluated. A number of new liquid-metal MHD (LMMHD) generator experiments, with and without gas wall injection, were performed and analyzed. Experimental visualization of air wall injection in water revealed jet behavior under different pressure gradients. A gas wall-jet can separate liquid from the walls only under positive pressure gradient conditions. The basic physical cause of the inability to prevent wetting of walls under a negative pressure gradient is absence of a force that would repulse liquid from walls, such as exist, for example, in film boiling or in electromagnetic confinement. (author)

[en] Malignant fibrous histiocytoma (MFH) is the most common soft tissue malignancy in adults. The Ga-67 citrate scan findings of an extremity-located MFH, the most common location of this neoplasm, have never been published in English language journals to the best of the authors' knowledge. Ga-67 citrate and Tc-99m MDP scans of the thigh mass accurately depicted the tumor's local extent, including the presence of central ischemic necrosis within the tumor, and the absence of adjacent osseous involvement and distant metastases, as correlated with computed tomography, angiography, and pathologic examinations