The gravitational wave memory effect is a prediction of general relativity. presence in signals not only provides the chance to test an important aspect relativity, but also represents potentially non-negligible contribution waveform for certain events. In this paper, we study prospect detecting directly with planned space-based detector -- TianQin. We find that during its 5 years operation, co...

We investigate numerically high speed granular flows down an incline and focus our attention on the influence of restitution coefficient e binary collisions nature flow regimes. show in particular that plays a major role rapid flows. Decreasing leads general to denser but also quicker The increase mean velocity with decreasing is explained as result clustering instability which produces dense c...