Webb上面就是Therac-25,它是一台于1985年制造的放疗设备,一台用来给癌症病人做放射性治疗的设备。 由加拿大原子能公司(AECL)制造。 它核心的软件程序是用来控制放疗的辐射量。 这台机器的投入使用的短短18个月内,因为软件的重大bug,造成了4人死亡,2人重伤,震惊了软件界。 迫使软件工程进行巨大的改进,制定了软件测试标准。 case 1 1985 … WebbThey develop Therac-6, and Therac-20. (AECL and CGR end their working relationship in 1981.) 1976. AECL developes the revolutionary "double pass" accelerator which leads to the development of Therac-25. March, 1983. AECL performs a safety analysis of Therac-25 which apparently excludes an analysis of software. July 29,1983.
Köp Theragun Massager Elite, Black - Gymgrossisten.com
Webb26 okt. 2015 · The Therac-25 was not a device anyone was happy to see. It was a radiation therapy machine. In layman’s terms it was a “cancer zapper”; a linear accelerator with a human as its target. Using … WebbThe Therac-25 was a computer-controlled radiation therapy machine produced by Atomic Energy of Canada Limited (AECL) in 1982 after the Therac-6 and Therac-20 units (the earlier units had been produced in partnership with Compagnie Générale de Radiologie (CGR) of France). It was involved in at least six accidents between 1985 and 1987, in ... chkd check in
Theragun for Sale Best Price Guarantee at DICK
Webb6 okt. 2024 · The TheraFlow Dual Foot Massager Roller doesn’t look fancy, but it’s expertly designed to provide maximum relief. It has 10 independently moving rollers (five for … WebbThe Theracane is a massager hook that makes it easy to get to hard-to-reach spots, increasing circulation and soothing away stress and knots in your back. This back … Webb29 okt. 2024 · 1). The Best TheraCane Massagers by Thera Cane. This is the best Thera Cane massager which allows you to apply pressure to sore muscles with emphasis on … grass looking carpet interiors