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RECTANGLE MAZE ROUTER FOR HIGH PERFORMANCE LSI
Kakigi,Nobuhiko,Ito,Takuji 대한전자공학회 1995 ICVC : International Conference on VLSI and CAD Vol.4 No.1
It is important to reduce wiring delay in recent high performance LSI chip layout. This paper proposes a new routing algorithm called Rectangle Search Maze Router, which perform the routing with not only basic-width wire but also with broad-width wire. This algorithm effectively reduce wiring delay using broad-width wire to gate array and standard cell LSI.
Acupressure Bead in the Eustachian Tube
Yu Matsumoto,Kazunori Igarashi,Akinobu Kakigi 사단법인약침학회 2015 Journal of Acupuncture & Meridian Studies Vol.8 No.4
In this article, we aim to enlighten practitioners and patients involved with acupressure beads and to contribute to their safer use by reporting a unique case of insidious intrusion of an acupressure bead into the eustachian tube. A metallic object was found in the eustachian tube of a patient while conducting a magnetic resonance imaging (MRI) examination. The object was later confirmed to be an auricular acupressure bead, and was successfully removed by performing a tympanoplasty and a canal wall down mastoidectomy. The bead was assumed to have passed through an existing perforation of the tympanic membrane. According to previously published literature, tympanic membrane perforations exist in ∼1% of the population. Therefore, middle-ear foreign bodies are relatively common occurrences for otolaryngologists. However, metallic objects such as acupressure beads are especially important in the sense that they can cause severe burns during MRI. To avoid potential complications, acupressure-bead practitioners should be aware of the possibility that intrusions through the tympanic membrane could go unnoticed.