英国物理学会
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作者:Shanshan Sun , Shaohua Wang , Chenghe Li ...
来源:[J].Superconductor Science and Technology(IF 2.758), 2018, Vol.31 (1)IOP
摘要:We study the electric transport properties of Li x (NH3) y Fe2(Te z Se )2 single crystals with and 0.6 in the mixed state. Thermally-activated flux-flow, vortex glass and flux-flow Hall effect (FFHE) behaviors are ...
作者:Y Trenikhina , S Posen , A Romanenko ...
来源:[J].Superconductor Science and Technology(IF 2.758), 2018, Vol.31 (1)IOP
摘要:Nb3Sn has potential to become the material of choice for fabrication of SRF cavities. The higher critical temperature of Nb3Sn potentially allows for an increased operational temperature in SRF cavities, which could enable a simplification of the cryogenic s...
作者:K Hogan , J-F Fagnard , L Wéra ...
来源:[J].Superconductor Science and Technology(IF 2.758), 2018, Vol.31 (1)IOP
摘要:Hard type-II hollow superconductors are well suited for low frequency magnetic shielding. The properties and performances of superconducting magnetic shields subjected to homogeneous magnetic fields have been extensively discussed in the literature. In the present work, we invest...
作者:M Breschi , L Cavallucci , P L Ribani ...
来源:[J].Superconductor Science and Technology(IF 2.758), 2018, Vol.31 (1)IOP
摘要:Proton therapy for the treatment of cancers adopts a rotating gantry to irradiate the tumor from any direction. The gantry system consists of different beamline magnets that bend the proton beam towards the patient. The use of superconducting magnets allows reducing the size and ...
作者:J S Lehtinen , A Kemppinen , E Mykkänen ...
来源:[J].Superconductor Science and Technology(IF 2.758), 2018, Vol.31 (1)IOP
摘要:We have fabricated disordered superconducting nanowires of molybdenium silicide. A molybdenium nanowire is first deposited on top of silicon, and the alloy is formed by rapid thermal annealing. The method allows tuning of the crystal growth to optimize e.g. the resistivity of the...
作者:Pashupati Dhakal , Gianluigi Ciovati
来源:[J].Superconductor Science and Technology(IF 2.758), 2018, Vol.31 (1)IOP
摘要:We present the results of rf measurements on a niobium–copper clad superconducting radio-frequency cavity with different cooldown conditions and residual magnetic field in a vertical test Dewar in order to explore the effect of thermal current induced magnetic field and its ...
作者:Chengwu Li , Shuai Fu , Cheng Guan ...
来源:[J].Journal of Geophysics and Engineering, 2018, Vol.15 (4)IOP
摘要:Low-frequency magnetic signals with the advantages of fewer interfering factors and longer propagation ranges are more useful for improving the accuracy of monitoring and early warning technology for coal or rock dynamic disasters. In this paper, the characteristics of low-freque...
作者:Cheng Fuqi , Li Zhonghui , Li Guoai ...
来源:[J].Journal of Geophysics and Engineering, 2018, Vol.15 (4)IOP
摘要:To study the influence of sandstone fissure angle on its characteristics, we performed sandstone uniaxial compression experiments with different prefabricated fissure angles. The infrared radiation temperature (IRT) response characteristics of the prefabricated fissure sands...
作者:Mohammad Anemangely , Ahmad Ramezanzadeh , Behzad Tokhmechi ...
来源:[J].Journal of Geophysics and Engineering, 2018, Vol.15 (4)IOP
摘要:Rate of penetration (ROP) enhancement serves as a key factor in reducing drilling time and hence drilling costs. ROP enhancement requires identification of the parameters affecting this rate. However, the large number of effective parameters, which are further immersed in no...
作者:Dazhao Song , Enyuan Wang , Xueqiu He ...
来源:[J].Journal of Geophysics and Engineering, 2018, Vol.15 (4)IOP
摘要:This paper presents an electromagnetic radiation-based method to qualitatively assess mine-induced stress field at the longwall face. We first analyze the correlation between electromagnetic (EM) signals and stress, and then measure the signals and drilling bits in both the strik...

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