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作品数:77被引量:168H指数:5
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相关机构:上海市静安区中心医院中国气象局国家气候中心西安电子科技大学东南大学更多>>
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A Fair Off-Line Electronic Cash Scheme Based on Restrictive Partially Blind Signature
《Tsinghua Science and Technology》2004年第4期441-443,481,共4页王常吉 吴建平 段海新 
the Post-Doctor Foundation of China (No. 2003033155) and the National Natural Science Founda-tion of China (No. 60203004)
A fair off-line electronic cash scheme was presented based on a provable secure restrictive par-tially blind signature. The scheme is more efficient than those of previous works as the expiry date and de-nomination in...
关键词:partially blind signature restrictive blind signature fair electronic cash scheme 
Off-line Study of a Laser Ion Source via Direct Ionization at the He-jet Outlet
《Tsinghua Science and Technology》1996年第3期14-18,共5页尚仁成 徐四大 张书明 叶子飘 张伟 赵之正 罗亦孝 
Supported by the National Natural Scie-nce Foundation of China
A laser ion source based on laser resonant ionization (RI) at the He jet outlet was proposed for the ISOL(on line isotope separator) of HIRFL (Heavy Ion Research Facility in Lanzhou, China) a few years ago . An...
关键词:ion source LASER He  jet 
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