a directional bias can be charted from the net option delta data, which translates directional option flow into share-equivalent activity, suggesting a significant shift from bullish to bearish ...

This has made it difficult for researchers to get accurate and reliable data to evaluate their ... The microscope accurately measured the directional heat flow in these materials.

Thermal diodes, much like their electrical counterparts, provide unidirectional heat transfer, allowing heat to flow in one direction while blocking it in the reverse. We find this capability ...

The two parties will establish a cooperation mechanism for the bidirectional flow of overseas platform data. Through a series of interconnected initiatives such as regulatory alignment ...