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6篇 您的检索式:作者名="He, Hanxin"
    题名 作者 年代 出处 被引量
1Reversible fluorescent probes for chemical and biological redox process显示文摘Oxidation and reduction are important chemical and biological processes. The redox state is related with physical functions and health. Thus, it is meaningful to develop tools for study the redox process.Fluorescence is a powerful method to connecting the microcosm and macrocosm. In this review, we discuss the recent progress of reversible fluorescent probes for chemical and biological redox process according to different active centers.Biao Li Zhaoshuai He Hanxin Zhou Han Zhang Tanyu Cheng 2017Chinese Chemical Letters2017,28,10:1
2Fish-Eye Image Distortion Correction Based on Adaptive Partition Fitting显示文摘The acquisition of images with a fish-eye lens can cause serious image distortion because of the short focal length of the lens.As a result,it is difficult to use the obtained image information.To make use of the effective information in the image,these distorted imagesmust first be corrected into the perspective of projection images in accordance with the human eye’s observation abilities.To solve this problem,this study presents an adaptive classification fitting method for fish-eye image correction.The degree of distortion in the image is represented by the difference value of the distances fromthe distorted point and undistorted point to the center of the image.The target points selected in the image are classified by the difference value.In the areas classified by different distortion differences,different parameter curves were used for fitting and correction.The algorithm was verified through experiments.The results showed that this method has a substantial correction effect on fish-eye images taken by different fish-eye lenses.Yibin He Wenhao Xiong Hanxin Chen Yuchen Chen Qiaosen Dai Panpan Tuand Gaorui Hu 2021Computer Modeling in Engineering & Sciences2021,,1:1
3COMMENT ON WHETHER THE CONTACT TERM CONTRIBUTES TO DOUBLE CHARGE EXCHANGE REACTION显示文摘Based on the Olsson-Turn’s Lagrangian, contribution to DCX reaction from the contact term has been discussed, The result shows that althought there are some cancellations between the pole-and contact-term contributions the contact term must be carefully included in any assessment of DCX reaction and can not be discarded a priori.Ma Weihsing (Center of Theoretical Physics, CCAST (World Lab.), Beijing) Yu Ziqiang (Department of Physics, Nankai University, Tianjin, China) He Hanxin (Institute of Atomic Energy, Academia Sinica) 1989中国科学院研究生院学报1989,6,2:0
4Hybrid Two-Phase Task Allocation for Mobile Crowd Sensing显示文摘As a result of the popularity of mobile devices,Mobile Crowd Sensing (MCS) has attracted a lot of attention. Task allocation is a significant problem in MCS. Most previous studies mainly focused on stationary spatial tasks while neglecting the changes of tasks and workers. In this paper,the proposed hybrid two-phase task allocation algorithm considers heterogeneous tasks and diverse workers.For heterogeneous tasks,there are different start times and deadlines. In each round,the tasks are divided into urgent and non-urgent tasks. The diverse workers are classified into opportunistic and participatory workers.The former complete tasks on their way,so they only receive a fixed payment as employment compensation,while the latter commute a certain distance that a distance fee is paid to complete the tasks in each round as needed apart from basic employment compensation. The task allocation stage is divided into multiple rounds consisting of the opportunistic worker phase and the participatory worker phase. At the start of each round,the hiring of opportunistic workers is considered because they cost less to complete each task. The Poisson distribution is used to predict the location that the workers are going to visit,and greedily choose the ones with high utility. For participatory workers,the urgent tasks are clustered by employing hierarchical clustering after selecting the tasks from the uncompleted task set.After completing the above steps,the tasks are assigned to participatory workers by extending the Kuhn-Munkres (KM) algorithm.The rest of the uncompleted tasks are non-urgent tasks which are added to the task set for the next round.Experiments are conducted based on a real dataset,Brightkite,and three typical baseline methods are selected for comparison. Experimental results show that the proposed algorithm has better performance in terms of total cost as well as efficiency under the constraint that all tasks are completed.LIU Jiahao JIN Hanxin QIANG Lei GAO Guoju DU Yang HUANG He 2022计算机工程2022,48,3:0
5Quark Model Approach to the Charge Dependent N-N InteractionXu, Pu Zong, Hongshi Ping, Jialun Wang, Fan He, Hanxin 1997Chinese journal of nuclear physics1997,,3:0
6Full fermion-boson vertex function derived in terms of symmetry relations in Abelian gauge theory显示文摘Nonperturbative studies such as confinement and dynamical chiral symmetry breaking need the nonperturbative interacting vertex functions. In this paper, an approach to determining the full fermion-boson vertex function in four-dimensional Abelian gauge theory is presented: this full vertex function is derived in terms of a set of normal (longitudinal) and transverse Ward-Takahashi relations for the fer-mion-boson (vector) and axial-vector vertices in the momentum space in the case of massless fermion. Such a derived fermion-boson vertex function should be sat-isfied both perturbatively and nonperturbatively. The fact that such a derived full fermion-boson vertex function to one-loop order holds indeed is proven and the nonperturbative form of this vertex is also under discussion.HE HanXin China Institute of Atomic Energy, Beijing 102413, China 2008Science China(Physics,Mechanics & Astronomy)2008,51,9:0
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