|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Learning to recognize misaligned hyperfine orbital angular momentum modes显示文摘Orbital angular momentum(OAM)-carrying beams have received extensive attention due to their high-dimensional characteristics in the context of free-space optical communication.However,accurate OAM mode recognition still suffers from reference misalignment of lateral displacement,beam waist size,and initial phase.Here we propose a deep-learning method to exquisitely recognize OAM modes under misalignment by using an alignment-free fractal multipoint interferometer.Our experiments achieve 98.35% recognizing accuracy when strong misalignment is added to hyperfine OAM modes whose Bures distance is 0.01.The maximum lateral displacement we added with respect to the perfectly on-axis beam is about±0.5 beam waist size.This work offers a superstable proposal for OAM mode recognition in the application of free-space optical communication and allows an increase of the communication capacity. | Xiao Wang Yufeng Qian JingJing Zhang Guangdong Ma Shupeng Zhao RuiFeng Liu Hongrong Li Pei Zhang Hong Gao Feng Huang Fuli Li | 2021 | Photonics Research2021，9，4： | 1 |
| 2 | Nonlinear dynamic characteristics of journal bearing-rotor system considering the pitching and roll-ing motion for marine turbo machinery显示文摘 | ZHANG Guanghui LIU Shupeng MA Ruixian | 2015 | Journal of Engineering for the Maritime Environment2015，229，1： | 1 |
| 3 | Value of 18 F-FDG PET/CT in the diagnosis of primary gastric cancer via stomach distension显示文摘 | Quanmei Ma Jun Xin Zhoushe Zhao Qiyong Guo Shupeng Yu Weina Xu Changping Liu Wei Zhai | 2013 | European Journal of Radiology2013，，6： | 1 |
| 4 | Long-range gene regulation network of the MGMT enhancer modulates glioma cell sensitivity to temozolomide显示文摘Approximately 80%of primary tumors in the central nervous system are malignant glioma,and>50%of those are diagnosed as glioblastoma(GBM),the most aggressive glioma.Despite treatment advances,GBM prognosis is unsatisfying,and the median survival time of patients is only 14-17 months. | Bohan Chen Anshun He Jinfang Bi Shupeng Sun Yiping Ma Wenbin Wang Dianhao Guo Jun Chen Yuyang Qian Tengfei Shi Guohui Nie Zhongfang Zhao Jiandang Shi Hongzhen Yang Lei Zhang Wange Lu | 2021 | Journal of Genetics and Genomics2021，48，10： | 1 |
| 5 | Entropy of black holes with arbitrary shapes in loop quantum gravity显示文摘The quasi-local notion of an isolated horizon is employed to study the entropy of black holes without any particular symmetry in loop quantum gravity. The idea of characterizing the shape of a horizon by a sequence of local areas is successfully applied in the scheme to calculate the entropy by the S O(1, 1) BF boundary theory matching loop quantum gravity in the bulk. The generating function for calculating the microscopical degrees of freedom of a given isolated horizon is obtained. Numerical computations of small black holes indicate a new entropy formula containing the quantum correction related to the partition of the horizon. Further evidence shows that, for a given horizon area, the entropy decreases as a black hole deviates from the spherically symmetric one,and the entropy formula is also well suitable for big black holes. | ShuPeng Song HaiDa Li YongGe Ma Cong Zhang | 2021 | Science China(Physics,Mechanics & Astronomy)2021，64，12： | 0 |
| 6 | 恢复梯度上华中亚热带森林生物多样性、林分因子及功能特性对生物量、生产力的影响显示文摘草地群落上进行的控制实验大都发现生物多样性对生态系统功能有显著促进作用。然而,在天然林中,多样性与林分因子、群落功能特性的相对作用大小仍存在争议。本文在森林恢复梯度上,研究这3类因素对生物量和生产力的相对影响。我们在湖北神农架设置了处于不同恢复阶段的24块(600 m2)亚热带森林样地,计算了林分生物量和生产力。选择5个关键的植物功能性状,并计算了群落的功能多样性(功能丰富度、功能均匀度和功能离散度)和性状的加权平均值(CWM)。使用一般线性模型(GLMs)、变异分离等方法探究林分因子(密度、林龄、群落最大树高等)、功能特性、物种和功能多样性对生物量和生产力的相对重要性。研究结果表明,随着森林恢复,林分生物量和生产力显著增加,群落物种丰富度显著增加,而功能离散度显著降低。变异分离结果表明,多样性对生物量和生产力的单独效应不显著,但可能通过与林分因子和功能特性的协同效应来影响生物量和生产力。总体而言,我们发现林分因子对亚热带森林生物量和生产力的影响最大,功能特性显著影响生产力,但不影响生物量。这些结果说明,在森林经营中,调整林分结构和群落物种特性是提高森林碳储量和固碳潜力的有效途径。 | Wenhao Miao Shupeng Ma Zhiwen Guo Haozhe Sun Xuemei Wang Yueming Lyu Xiangping Wang | 2022 | Journal of Plant Ecology2022，15，2： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员