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。
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。
While the threshold value reaches its upper limit the optimization design is finished, thus the final distribution form and its sectional dimensions of the reinforced ribs were obtained.
当阈值达到阈值上限时优化设计结束，从而获得最终的加强筋的分布形式及其截面尺寸。
While the threshold value reaches its upper limit the optimization design is finished, thus the final distribution form and its sectional dimensions of the reinforced ribs were obtained.
当阈值达到阈值上限时优化设计结束，从而获得最终的加强筋的分布形式及其截面尺寸。
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