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SUM: 作品数：854被引量：837H指数：13; 导出分析报告; 相关领域：理学更多>>; 相关作者：及万会张晓倩杨柳桦杨建南刘勇华更多>>; 相关机构：安徽理工大学吴忠师范学校东北师范大学北京大学更多>>; 相关期刊：更多>>; 相关基金：国家自然科学基金国家重点基础研究发展计划国家教育部博士点基金中国博士后科学基金更多>>

Study of true coincidence summing effects on FEP efficiency of HPGe detectors during decay measurements at HIRFL: 《Nuclear Science and Techniques》2025年第5期70-78,共9页Peng-Song Zheng Fu-Rong Shi Sunil Dutt Ya-Ling Zhang Yan-Shi Zhang Wei Wang Guang-Shun Li Si-Cheng Wang Hao-Ran Yang Jin-Qi He Peng-Cong Ma Jilehu Gada Xin Ma Fan-Fei Zeng Hao Huang Chen-Sheng Gao Jian-Guo Wang; supported by the Natural Science Foundation of Gansu Province(No.22JR5RA118);the National Natural Science Foundation of China(Nos.12121005 and U1932138);the Strategic Priority Research Program of the Chinese Academy of Sciences(No.XDB34010000)。; The measurement of low-level radioactivity using high-purity germanium(HPGe)detectors is important in applications such as environmental background radiation,material screening,and rare decays.The dead layers,dead zon...; 关键词：Coaxial HPGe detector Detector characterization GEANT4 simulation Sum-peak Analytical approach Transfer reaction cross-section

Evaluation of Field-Diffusion Charging Models for Airborne Suspended Particles Charged by Corona Ions: Sum of Charge Quantities and Sum of Charging Rates: 《CSEE Journal of Power and Energy Systems》2025年第2期931-943,共13页Kun He Xiaoqian Ma Li Xie Yong Ju Jiayu Lu Luxing Zhao; supported by the State Grid Corporation of China(No.5200-202455431A-3-6-RW).; To evaluate field-diffusion charging models, a systematic comparative study is conducted in this paper. A field-diffusion charge quantity sum model (FDCQSM) and a field-diffusion charging rate sum model (FDCRSM) are i...; 关键词：Atmospheric airborne particles diffusion charging electrical environment of HVDC transmission lines field charging Maxwell-Wagner relaxation

基于机器学习算法的信访风险预测模型研究: 《移动信息》2025年第4期252-253,271,共3页蔡韧; 当前,信访风险管理面临精准预测难、预防机制薄弱等问题,亟需改善。为解决该问题,文中提出了一种基于机器学习算法的信访风险预测模型。该模型通过对历史信访数据的分析,从中提取关键特征,并利用支持向量机算法对风险事件进行建模和预...; 关键词：机器学习算法 SUM 信访风险预测

Bias Plan剂量叠加法对左乳腺癌术后放疗计划的影响研究: 《重庆医学》2025年第3期620-624,共5页刘攀董建伟赵文龙刘景朱彤; 江西省科学技术厅科技计划项目(20161BBG70036);江西省吉安市科技局科技计划项目(20233-043504)。; 目的探讨Monaco计划系统中Sum Plan与Bias Plan两种剂量叠加方法在左侧乳腺癌术后添加组织补偿物分段放疗计划中的剂量学影响。方法选取2023年3月至2024年2月在该院接受放疗的29例左乳腺癌根治术患者为研究对象,基于Monaco计划系统在相...; 关键词：Sum Plan Bias Plan 乳腺癌术后剂量学 Monaco

Secure beamforming designs for maximizing secrecy sum rate in MISO-NOMA networks: 《Digital Communications and Networks》2025年第1期83-91,共9页Yanbo Zhang Zheng Yang Jingjing Cui Xianfu Lei Yi Wu Jun Zhang Chao Fang Zhiguo Ding; supported in part by the Natural Science Foundation of Fujian Province under Grant 2022J01169;the Local Science and Technology Development of Fujian Province under Grant 2021L3010;the Key Project of Science and Technology Innovation of Fujian Province under Grant 2021G02006;the National Natural Science Foundation of China under Grants 61971360 and 62271420;the National Natural Science Foundation of China under Grant 62071247;the Urban Carbon Neutral Science and Technology Innovation Fund Project of Beijing University of Technology ($040000514122607$)。; In this paper,the application of Non-Orthogonal Multiple Access(NOMA)is investigated in a multiple-input single-output network consisting of multiple legitimate users and a potential eavesdropper.To support secure tra...; 关键词：NOMA Secure transmission Artificial jamming Beamforming design

IMAGE SPACE BRANCH-REDUCTION-BOUND ALGORITHM FOR GLOBALLY SOLVING THE SUM OF AFFINE RATIOS PROBLEM: 《Journal of Computational Mathematics》2025年第1期203-228,共26页Hongwei Jiao Youlin Shang; supported by the National Natural Science Foundation of China(Grant Nos.11871196,12071133,12071112);by the Key Scientific and Technological Research Projects of Henan Province(Grant Nos.232102211085,202102210147);by the China Postdoctoral Science Foundation(Grant No.2017M622340);by the Science and Technology Climbing Program of Henan Institute of Science and Technology(Grant No.2018JY01).; This article presents an image space branch-reduction-bound algorithm for globally solving the sum of affine ratios problem. The algorithm works by solving its equivalent problem, and by using convex hull and concave ...; 关键词：Sum of affine ratios Global optimization Affine relaxation problem Branchreduction-bound Computational complexity

Extended Nested Array with a Filled Sensor for DOA Estimation of Non-circular Signals: 《Transactions of Nanjing University of Aeronautics and Astronautics》2025年第1期90-100,共11页LI Xiaolong ZHANG Xiaofei SHEN Zihan; supported by China National Science Foundations(Nos.62371225,62371227)。; Sparse array design has significant implications for improving the accuracy of direction of arrival(DOA)estimation of non-circular(NC)signals.We propose an extended nested array with a filled sensor(ENAFS)based on the...; 关键词：non-circular signal extended nested array sparse array direction of arrival(DOA)estimation sum-difference coarray

The Equation for the CP Violating Phase for Quarks: The Rule for the Sum of Quark Oscillation Probabilities: 《Journal of High Energy Physics, Gravitation and Cosmology》2024年第4期1835-1865,共31页Zoran B. Todorovic; By applying the rules for the sum of quark oscillation probabilities for the original CKM matrix and for Wolfenstein’s parameterization, equations were derived in which the CP violating phase for quarks appears as an...; 关键词：QUARKS CKM Matrix PMNS Matrix Wolfenstein Parameterization CP Violation Phase Jarlskog Invariant

Sum-throughput maximization for UAV-aided energy-harvesting WBANs:Hovering altitude design,power control and time allocation: 《Digital Communications and Networks》2024年第6期1894-1903,共10页Rongrong Zhang Mengyu Li Xinglong Li Yong Guan Cheng'an Zhao Huan Qi Changquan Qiu; supported in part by the NSF of China(No.62171296);the Science and Technology Project of Beijing Municipal Education Commission(No.KM202010028005)。; UAV-aided energy-harvesting WBANs where sensor nodes can harvest RF energy transmitted by a UAV have attracted considerable attention.However,how to maximize the sum-throughput of the sensor nodes with crosstier inter...; 关键词：Power control Time allocation Energy harvesting

Ecoregional height-diameter models for Scots pine in Turkiye: 《Journal of Forestry Research》2024年第6期49-61,共13页Fadime Sağlam Oytun Emre Sakici; supported by Scientific Research Projects Management Coordinator of Kastamonu University,under grant number KÜ-BAP01/2019-41.; Ecoregion-based height-diameter models were developed in the present study for Scots pine(Pinus sylves-tris L.)stands in Turkiye and included several ecological factors derived from a pre-existing ecoregional classifi...; 关键词：Tree height Nonlinear mixed-effects modelling Nonlinear sum of extra squares method ECOREGION Scots pine

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