经颅磁刺激（transcranial magnetic stimulation,TMS）是一项利用时变磁场作用于大脑皮质产生感应电流改变皮质神经细胞的动作电位,从而影响脑内代谢和神经电活动的生物刺激技术。采用TMS刺激皮质运动区或其传出通路,在刺激点远端的传...经颅磁刺激（transcranial magnetic stimulation,TMS）是一项利用时变磁场作用于大脑皮质产生感应电流改变皮质神经细胞的动作电位,从而影响脑内代谢和神经电活动的生物刺激技术。采用TMS刺激皮质运动区或其传出通路,在刺激点远端的传出途径及效应器——肌记录到动作电位,即运动诱发电位（motor evoked potentials，MEPs）。展开更多
We study the one-loop contribution of the effective flavor changing neutral couplings （FCNC） tcZ on the charm quark electric dipole moment. Using the known limits on the top and charm quarks electric dipole moments,...We study the one-loop contribution of the effective flavor changing neutral couplings （FCNC） tcZ on the charm quark electric dipole moment. Using the known limits on the top and charm quarks electric dipole moments, we place limits on these FCNC anomalous couplings.展开更多
Transformation optics provides great versatility for precisely manipulating electromagnetic waves. It has been extended to other fields including acoustics, thermotics, and electrics. Taking advantage of the transform...Transformation optics provides great versatility for precisely manipulating electromagnetic waves. It has been extended to other fields including acoustics, thermotics, and electrics. Taking advantage of the transformation electrics method, we demonstrate that the square-shaped cloak can guide electric current around the cloaked region smoothly without perturbing the exterior electric current. And the cylindrical rotator can rotate the electric current.Inside the enclosed domain of the rotator, the electric current from the outside will appear as if it is coming from a different angle. Finally, the related experimental realizations and potential applications are also discussed.展开更多
文摘经颅磁刺激（transcranial magnetic stimulation,TMS）是一项利用时变磁场作用于大脑皮质产生感应电流改变皮质神经细胞的动作电位,从而影响脑内代谢和神经电活动的生物刺激技术。采用TMS刺激皮质运动区或其传出通路,在刺激点远端的传出途径及效应器——肌记录到动作电位,即运动诱发电位（motor evoked potentials，MEPs）。
文摘We study the one-loop contribution of the effective flavor changing neutral couplings （FCNC） tcZ on the charm quark electric dipole moment. Using the known limits on the top and charm quarks electric dipole moments, we place limits on these FCNC anomalous couplings.
基金Support by Young Teacher Training Program of Shanghai Municipal Education Commission under Grant No.egd11005by Innovation Program of Shanghai Municipal Education Commission under Grant No.12YZ177+3 种基金by National Natural Science Foundation of China under Grant No.11304195financial support by the National Natural Science Foundation of China under Grant Nos.11075035 and 11222544by Fok Ying Tung Education Foundation under Grant No.131008by Shanghai Rising-Star Program under Grant No.12QA1400200
文摘Transformation optics provides great versatility for precisely manipulating electromagnetic waves. It has been extended to other fields including acoustics, thermotics, and electrics. Taking advantage of the transformation electrics method, we demonstrate that the square-shaped cloak can guide electric current around the cloaked region smoothly without perturbing the exterior electric current. And the cylindrical rotator can rotate the electric current.Inside the enclosed domain of the rotator, the electric current from the outside will appear as if it is coming from a different angle. Finally, the related experimental realizations and potential applications are also discussed.
