An issue to distinguish sensitive parameters of storage life prior to the failure of a bridgewire electro-(explosive) device (EED) is studied. The degradations of bridgewire resistance, 50% firing current, ignition de...An issue to distinguish sensitive parameters of storage life prior to the failure of a bridgewire electro-(explosive) device (EED) is studied. The degradations of bridgewire resistance, 50% firing current, ignition delay time, bridgewire molten time and powder color with the storage time were measured under a simulating accelerated life test of high-temperature and high-humidity. The most sensitive parameter suitable to evaluate the EED storage life is discussed. It is concluded that the standard deviation of resistance change is the most sensitive degradation variable, and the next is bridgewire molten time, 50% firing current and ignition delay time. The mean of resistance is an insensitive degradation parameter.展开更多
WHEN Miss Luo, aninterpreter for a foreigncompany, bought disposableunderpants for the first time, she was soexcited. She recommended them to herfriends: "They are marvellous!" shesaid. "You can simply ...WHEN Miss Luo, aninterpreter for a foreigncompany, bought disposableunderpants for the first time, she was soexcited. She recommended them to herfriends: "They are marvellous!" shesaid. "You can simply throw them awayafter using them. It’s a new era inconvenience and comfort." When the first disposable diapercame out in 1961, it promoted a trendtoward one-off goods. One-off is a展开更多
文摘An issue to distinguish sensitive parameters of storage life prior to the failure of a bridgewire electro-(explosive) device (EED) is studied. The degradations of bridgewire resistance, 50% firing current, ignition delay time, bridgewire molten time and powder color with the storage time were measured under a simulating accelerated life test of high-temperature and high-humidity. The most sensitive parameter suitable to evaluate the EED storage life is discussed. It is concluded that the standard deviation of resistance change is the most sensitive degradation variable, and the next is bridgewire molten time, 50% firing current and ignition delay time. The mean of resistance is an insensitive degradation parameter.
文摘WHEN Miss Luo, aninterpreter for a foreigncompany, bought disposableunderpants for the first time, she was soexcited. She recommended them to herfriends: "They are marvellous!" shesaid. "You can simply throw them awayafter using them. It’s a new era inconvenience and comfort." When the first disposable diapercame out in 1961, it promoted a trendtoward one-off goods. One-off is a
