Cognition function of brain was simulated by artificial nerve network by changing threshold limit value of linking point. 人工神经网络模拟大脑的认知功能,通过改变连接点的权值和阈值来训练神经网络完成特定的功能。
Nano-silicon Powder Produced by LICVD and Study of Laser Threshold Limit Value(TLV) The results show that the Monte Carlo can simulate the photon detection efficiency of data in the precision of 1 % - 3 %. LICVD法纳米硅粉的制备及激光能量阈值研究结果表明在从探测器光子能量阈值直到BES上可产生的最大光子能量范围内,用目前的MonteCarlo可以在1%&3%的精度下模拟光子的探测效率。
OBJECTIVE : To assess the effect of blood lead level on T cell subgroup of children, and the association of T cell subgroup with threshold limit value of blood lead level. 目的:评估血铅对儿童T细胞亚群的影响,以及血铅临界值与T细胞亚群的关系。
Objective : To investigate the acute and accumlative toxicities of hydroquinone in mice and rats and to provide the information for establishing the threshold limit value of hydroquinone. 目的:研究氢醌对小鼠和大鼠的急性毒性和蓄积毒性,为建立卫生标准提供资料。
The correlation between bone density and fracture and the threshold limit value of bone mineral density to screen population at high risk of fracture 骨矿含量与骨折相关性及其骨折危险阈值研究