Rao Chen,1,2,* Liya Ai,1,2,* Jiying Zhang,1,3,4 Dong Jiang1,3,4 1Department of Sports Medicine, Peking University Third Hospital, Institute of Sports Medicine of Peking University, Beijing, 100191, People’s Republic of China; 2Department of Laboratory Animal Science, Peking University Health Science Center, Beijing, 100191, People’s Rep
We report a merlin wizard costume construction of distributed-feedback (DFB) optical microcavities, which is realized through mechanical contact between a high-quality planar thin film of a polymeric semiconductor and a large-area homogeneous nanograting.Using poly[(9,9-dioctylfluorenyl-2,7-diyl)-alt-(benzo[2,1,3] thiadiazol-4,8-diyl)] (F8BT) as th
This paper deals with the joint subcarrier and power allocation problem in a downlink multi-user orthogonal frequency division multiplexing read more system subject to user delay and minimum rate quality-of-service (QoS) requirements over a frequency-selective multi-copyright fading channel.We aim to maximize the utility-pricing function, formulate