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With the high economic growth era up until 1990s, the power demand increased sharply year by year. Therefore, the electric power utilities installed many electric power facilities along with the predicted demand. However, in recent years, fewer apparatuses have been installed because electric power demand growth has been saturated due to low economic growth. Therefore, for electric power facilities planning, it is necessary to form a rational renewal plan with various aspects which does not consider only facility ages. In this paper, we propose a new transmission renewal planning method using System Loss Sensitivity. Here we evaluate the decrease of active power flow loss, and the voltage increase due to the decrease of reactive power flow loss. Finally we carry out simulations for the IEEJ EAST 10-machine model system and determine the transmission planning priority to confirm the validity of the proposed method. ΔbΔg J J J ΔQL ΔPL Sy 1 SV LV

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A new triple surgery procedure was applied to 20 primary open-angle glaucomatous (POAG) eyes. This technique comprises trabeculotomy with narrow (2-3 mm) fornix-based scleral flap, combined with extracapsular cataract extraction (ECCE) and posterior chamber intraocular lens (PC-IOL) implantation. As to surgical results, at two years postsurgery 53% (9/17) of the eyes were controlled under 21 mm Hg without medication, 35% (6/17) with topical medication alone. Eighteen (90%) eyes showed improved visual acuity of two or more Snellen lines. No serious postoperative complications occurred. There was no significant difference in postoperative astigmatism as compared with ordinary ECCE and PC-IOL surgery. Trabeculotomy with fornix-based scleral flap offers the advantage of simple and safe surgery when combined with ECCE and PC-IOL implantation.