Transient field-resolved spectroscopy enables studies of ultrafast dynamics in molecules, nanostructures, or solids with sub-cycle resolution, but previous work has so far concentrated on extracting the dielectric response at frequencies below 50 THz. Here, we implemented transient reflectometry 50–100 THz (3–6 µm) MHz repetition rate employing 800 nm few-cycle excitation pulses that provide su...

on the eve of 14th year of publication of “negin iran: a quarterly for studies of iran-iraq war” and after the release of an index for the first 28 issues of the quarterly published in 29th issue, the journal executive editor decided to release another index for the numbers of 1-50 in the new release of the quarterly to be used by the related researchers and those interested in this field of st...

We demonstrate that training ResNet-50 on ImageNet for 90 epochs can be achieved in 15 minutes with 1024 Tesla P100 GPUs. This was made possible by using a large minibatch size of 32k. To maintain accuracy with this large minibatch size, we employed several techniques such as RMSprop warm-up, batch normalization without moving averages, and a slow-start learning rate schedule. This paper also d...

Motion is ubiquitous in the physical world, yet its study is much less developed than that of another common physical modality, namely shape. While we have several standardized mathematical shape descriptions, and even entire disciplines devoted to that area–such as Computer-Aided Geometric Design (CAGD)—the state of formal motion descriptions is still in flux. This in part because motion descr...