无线射频识别(Radio Frequency Identification Devices, RFID)是高校物联网专业的主干课程之一,在物联网工程专业相关课程理论教学和工程实训教学中起着至关重要的作用。对RFID课程的定位与工程实训教学进行了研究,阐述了课程定位和工...无线射频识别(Radio Frequency Identification Devices, RFID)是高校物联网专业的主干课程之一,在物联网工程专业相关课程理论教学和工程实训教学中起着至关重要的作用。对RFID课程的定位与工程实训教学进行了研究,阐述了课程定位和工程实训教学的意义,认为理论教学与工程实训教学相结合,可以有效地提高学生的认知能力和动手能力,有助于培养学生的创新应用能力和逻辑思维能力,同时也能够使学生在平台二次开发方面获得更多技术层面的提升,以适应物联网专业学生的学习要求。展开更多
The parton rescattering effect on the charged hadron forward-backward multiplicity correlation in pp collisions at √s =200 GeV is studied by a parton and hadron cascade model, PACIAE, based on the PYTHIA model. The c...The parton rescattering effect on the charged hadron forward-backward multiplicity correlation in pp collisions at √s =200 GeV is studied by a parton and hadron cascade model, PACIAE, based on the PYTHIA model. The calculated multiplicity and pseudorapidity distribution of the final state charged hadrons are well compared with the experimental data. It is found that the final state charged hadron pseudorapidity distribution is different from the initial state charged partons. The parton rescattering effect on the charged hadron forward-backward multiplicity correlation increases with the increasing parton rescattering strength in the center pseudorapidity region （｜η｜ 〈 1）. However, this effect becomes weaker in the outer pseudorapidity region （｜η｜ 〉 1）.展开更多
Rotational structures at ultrahigh spin in ^157,158,159 Er have been investigated with the configuration-dependent cranked Nilsson-Strutinsky approach. Configurations of observed bands are assigned and the correspondi...Rotational structures at ultrahigh spin in ^157,158,159 Er have been investigated with the configuration-dependent cranked Nilsson-Strutinsky approach. Configurations of observed bands are assigned and the corresponding deformations are given theoretically. The calculations suggest that one of ultrahigh spin bands in ^158 Er is triaxial highly deformed and the other is normal-deformed, while both ultrahigh spin bands in ^157Er are suggested to be triaxial highly deformed. The possible ultrahigh spin bands in ^159Er are predicted to be triaxial highly deformed and have shape coexistence in the same configuration. The configurations with two neutron holes in the Nose = 4 orbitals and two neutron holes in the h11/2 orbitals in ^159Er are favoured for ultrahigh spin states but unfavoured for band termination, which is similar to ultrahigh spin bands in ^157,15SEr.展开更多
The microscopic effective charges in mirror nuclei 51Mn and 51Fe are investigated with the particle-vibration coupling model based on the self-consistent Skyrme-Hartree-Fock and continuum random-phase-approximation ap...The microscopic effective charges in mirror nuclei 51Mn and 51Fe are investigated with the particle-vibration coupling model based on the self-consistent Skyrme-Hartree-Fock and continuum random-phase-approximation approaches. The isovector parts are predicted to be around 0.15, and the proton effective charges are around 1.25 e, which is less than the empirical value of epff p = 1.5 e. The microscopic effective charges in neutron rich 51Mn are about 10% less than its proton rich mirror. These effective charges are combined with the shell model to calculate the reduced electric quadrupole transition probability B（E2） values in 51Mn and 51Fe. It turns out that the microscopic effective charges have well reproduced the B（E2） values and its ratio in the terminating states.展开更多
文摘无线射频识别(Radio Frequency Identification Devices, RFID)是高校物联网专业的主干课程之一,在物联网工程专业相关课程理论教学和工程实训教学中起着至关重要的作用。对RFID课程的定位与工程实训教学进行了研究,阐述了课程定位和工程实训教学的意义,认为理论教学与工程实训教学相结合,可以有效地提高学生的认知能力和动手能力,有助于培养学生的创新应用能力和逻辑思维能力,同时也能够使学生在平台二次开发方面获得更多技术层面的提升,以适应物联网专业学生的学习要求。
基金supported by National Natural Science Foundation of China (Nos. 11047142, 10975062, 11075217, and 10705012)
文摘The parton rescattering effect on the charged hadron forward-backward multiplicity correlation in pp collisions at √s =200 GeV is studied by a parton and hadron cascade model, PACIAE, based on the PYTHIA model. The calculated multiplicity and pseudorapidity distribution of the final state charged hadrons are well compared with the experimental data. It is found that the final state charged hadron pseudorapidity distribution is different from the initial state charged partons. The parton rescattering effect on the charged hadron forward-backward multiplicity correlation increases with the increasing parton rescattering strength in the center pseudorapidity region （｜η｜ 〈 1）. However, this effect becomes weaker in the outer pseudorapidity region （｜η｜ 〉 1）.
文摘Rotational structures at ultrahigh spin in ^157,158,159 Er have been investigated with the configuration-dependent cranked Nilsson-Strutinsky approach. Configurations of observed bands are assigned and the corresponding deformations are given theoretically. The calculations suggest that one of ultrahigh spin bands in ^158 Er is triaxial highly deformed and the other is normal-deformed, while both ultrahigh spin bands in ^157Er are suggested to be triaxial highly deformed. The possible ultrahigh spin bands in ^159Er are predicted to be triaxial highly deformed and have shape coexistence in the same configuration. The configurations with two neutron holes in the Nose = 4 orbitals and two neutron holes in the h11/2 orbitals in ^159Er are favoured for ultrahigh spin states but unfavoured for band termination, which is similar to ultrahigh spin bands in ^157,15SEr.
基金supported by National Natural Science Foundation of China(Nos.11075217,11047142)
文摘The microscopic effective charges in mirror nuclei 51Mn and 51Fe are investigated with the particle-vibration coupling model based on the self-consistent Skyrme-Hartree-Fock and continuum random-phase-approximation approaches. The isovector parts are predicted to be around 0.15, and the proton effective charges are around 1.25 e, which is less than the empirical value of epff p = 1.5 e. The microscopic effective charges in neutron rich 51Mn are about 10% less than its proton rich mirror. These effective charges are combined with the shell model to calculate the reduced electric quadrupole transition probability B（E2） values in 51Mn and 51Fe. It turns out that the microscopic effective charges have well reproduced the B（E2） values and its ratio in the terminating states.
