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The Magnetoresistance in Iron-based Superconductors
B. Lv,R. B. Xie,S. L. Liu,G. J. Wu,H. M. Shao,X. S. Wu 한국자기학회 2011 Journal of Magnetics Vol.16 No.2
The phase transition of vortex matter from solid to liquid was studied in iron-based superconductors. Based on the traditional vortex glass theory, we have examined the magnetoresistivity data of iron-based superconductors using our extended thermal activation model: ρ(B,T) = ρ((T-Tg(B))/(Tc(0)-Tg(B)))<SUP>v(z-1)</SUP>. We predict that the magnetic field-dependent area S + S? which integrates ρ with T is proportional to B<SUP>β</SUP>, where β is the vortex glass transition exponent. From our calculation, the vortex glass transition exponent is 0.33, close to the exponent of area S?+ S is 0.31 in SmO0.9F0.1FeAs; the exponent of area S is 0.63, which is close to the irreversibility line exponent 2/3. Both of the results show the validity of our model. In addition, our model is shown to be effective in describing irreversibility behavior in layered superconductors.
Development of a 120 Hz 110 ultra-high-definition a-Si liquid crystal display panel
Yanping Liao,Xibin Shao,Yufan Du,송용지,Weihao Hu,Zhenyu Zhang,Yuqiong Chen,Ying Wang,Qing Ma,윤대근,Dan Wang,Jianfeng Yuan,Hongjiang Wu,Zongjie Guo,Zhaohui Hao,Ji Zhang,Jing Lv 한국정보디스플레이학회 2014 Journal of information display Vol.15 No.2
A prototype 120 Hz 110-inch ultra-high-definition a-Si liquid crystal display (LCD) panel was successfully developed using the BOE exclusive advanced superdimensional switching technology. This LCD has a panel consisting of 3840 × 2160 pixels, four times the number of pixels in the conventional full-high-definition LCD. For the brightness and contrast ratio, 1000 nits and 1200:1 have been achieved, respectively. Additionally, the liquid crystal charging time has been extended through quad area driving and 2G2D line structures. Furthermore, the local dimming and mirror-scanning techniques are applied to realize excellent image display. Finally, the system utilizes 3D shutter glasses, allowing the viewer to achieve the highest sense of realness and immersion.