Influence of the Gaussian colored noise and electromagnetic radiation on the propagation of subthreshold signals in feedforward neural networks

Science China Technological Sciences - Iterative methods are used to simulate the in vitro feedforward neural networks in physiological experiments. Emissivity can be propagated to a minimum of ten...     

轿厢运行速度失控及安全对策分析——学习新国标GB7588-2003的体会

电梯是一种载人运输工具，确保乘员在电梯运行中的安全是电梯设计的首要任务。新国标GB7588-2003对电梯的安全措施作，严格和全面的规定，电梯必须满足新国标的要求，否则将有安全隐患，可能危及乘员的安全。     

深圳公共艺术广场——都市造园系列之二

深圳公共艺术广场是Urbanus的都市造园系列之二,作为城市策略它将公共艺术设施置放到混杂密集的城市街区之中,通过重塑基地表层地形创造了一个富于想象力的城市公共空间。     

两种4导轨货梯

常用的小吨位货梯与客梯相同,轿架沿2根导轨运行,货物在轿厢中的偏载以及装卸货物时装载工具如叉车进出轿厢造成的倾翻力矩均由2根导轨承担。当轿厢载重量很大，或轿厢很深,或叉车的轮压较大时,过大的倾翻力矩除了使轿架本身的应力及变形增大,危及轿架的安全外，也使导轨中的应力及变形增大,在超出允许的范围后则可能使导轨出现永久变形或者断裂。由于导轨变形的增加．也造成了轿门地坎与层门地坎的高差加大（可用轿底倾斜度来衡量）．影响装载工具的出入,极端情况下甚至出现轿门地坎碰撞层门地坎的严重后果,妨碍轿厢正常运行。在这种情况．2导轨导向的轿架已不再适宜．应采用4导轨导向的轿架。     

Energy dependence on modes of electric activities of neuron driven by different external mixed signals under electromagnetic induction

Energy supply and release play an important role in individual neuron and neural network. In this paper, the electrical activities and Hamilton energy of neuron are investigated when external mixed signals(i.e., the periodic stimulus current and the periodic electromagnetic field) are imposed on the neuron under the electromagnetic induction. As a result, the Hamilton energy is much dependent on the mode transition, the multiple electric activity modes and the numerical analysis of Hamilton energy are more complicated under various parameters. When the periodic high-low frequency electromagnetic radiation is imposed in neuron, it is found that the electrical activities are more complex, and the changing of energy is obvious. In addition, the response of electrical activity and Hamilton energy is much dependent on the changing of amplitude A, B when the external high-low frequency signal is imposed on the neuron, meanwhile, the energy of bursting state is lower than the one of spiking state. It can be used for investigation about the energy coding in the neuron even the neuron networks.