Based on the correlation of tobacco primary-color signals, the optimization of tobacco signal threshold can be achieved by means of displacement, rotation, and two-dimensional fitting.

基于烟叶三基色信号存在的相关特性，采用二维相关拟合以及平移旋转方法，实现了烟叶信号的阈值优化。

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Npswarn is the threshold that is used to signal the processes when space is getting low.

Npswarn是当空间变得较低时用于通知进程的阈值。

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Infrared radiation heats up the pit membrane tissue, and TRPA1 channels open when a threshold temperature is reached, allowing ions to flow into the nerve cells and triggering an electrical signal.

红外线使窝器膜组织升温，当达到阈值后TRPA 1通路打开，离子流入神经细胞并催发电信号。

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But now this mysterious property is up for sale, and so I find myself with a few other journalists on the other side of the doors, signing consent forms and handing in my mobile phone (whose signal had mysteriously vanished as soon as I crossed the threshold).

ECONOMIST: Snooker, piranhas and a hotline to Moscow

It is also not just the fact that it sends a signal of American weakness to Iran and its proxies just as Iran reaches the nuclear threshold.

CENTERFORSECURITYPOLICY: The perils ahead