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Information theory based clustering of cellular network usage data for the identification of representative urban areas
《Digital Communications and Networks》2024年第6期1677-1685,共9页Mihaela I.Chidean Luis Ignacio Jiménez Gil Javier Carmona-Murillo David Cortés-Polo 
partially supported by the grant TED2021131699B-I00/AEI/10.13039/501100011033/European Union Next Generation EU/PRTR;the Spanish Ministry of Science and Innovation,grants PID2020-112545RB-C54 and PDC2022-133900-I00;the Univ.Rey Juan Carlos Program for Research Promotion and Development(Ref.F799 and F920)。
The exponential growth of the number of network devices in recent years not only entails the need for automation of management tasks,but also leads to the increase of available network data and metadata.5G and beyond ...
关键词：CLUSTERING 5G Network analysis Multi-feature analysis Kullback-Leibler divergence Cellular networks 
Assessment of the three representative empirical models for zenith tropospheric delay(ZTD)using the CMONOC data
《Geodesy and Geodynamics》2024年第5期488-494,共7页Debao Yuan Jian Li Yifan Yao Fei Yang Yingying Wang Ran Chen Tairan Xu 
supported by the National Natural Science Foundation of China(42204022,52174160,52274169);Open Fund of Hubei Luojia Laboratory(230100031);the Open Fund of State Laboratory of Information Engineering in Surveying,Mapping and Remote Sensing,Wuhan University(23P02);the Fundamental Research Funds for the Central Universities(2023ZKPYDC10);China University of Mining and Technology-Beijing Innovation Training Program for College Students(202302014,202202023)。
The precise correction of atmospheric zenith tropospheric delay(ZTD)is significant for the Global Navigation Satellite System(GNSS)performance regarding positioning accuracy and convergence time.In the past decades,ma...
关键词：GNSS Zenith tropospheric delay Empirical ZTD model CMONOC data 
Diketopyrrolopyrrole-based Conjugated Polymers as Representative Semiconductors for High-Performance Organic Thin-Film Transistors and Circuits
《Chinese Journal of Polymer Science》2023年第5期671-682,I0006,共13页Kai-Qing Liu Yuan-He Gu Zheng-Ran Yi Yun-Qi Liu 
financially supported by the National Key R&D Program of China(No.2018YFA0703200);the National Natural Science Foundation of China(Nos.U22A6002,91833306,21922511 and 51873216);the Strategic Priority Research Program of the Chinese Academy of Sciences(No.XDB30000000);the CAS Project for Young Scientists in Basic Research(No.YSBR-053);the CAS-Croucher Funding Scheme for Joint Laboratories;the CAS Cooperation Project(No.121111KYSB20200036)。
Since the first report of diketopyrrolopyrrole(DPP)-based conjugated polymers for organic thin-film transistors(OTFTs),these polymers have attracted great attention as representative semiconductors in high-performance...
关键词：DIKETOPYRROLOPYRROLE Polymer semiconductors Organic thin-film transistor Organic circuits 
PERMEABILITY COMPUTATION ON A REPRESENTATIVE VOLUME ELEMENT （RVE） OF. UNIDIRECTIONAL DISORDERED FIBER ARRAYS
《Journal of Computational Mathematics》2016年第3期223-239,共17页Karim Hitti Stephanie Feghali Marc Bernacki 
An efficient method to compute the permeability of disordered fibrous arrays is pro- posed. A stabilized mixed finite element method is used with an immersed domain ap- proach to represent the porous material at its m...
关键词：PERMEABILITY Fibrous Media Finite Element Method Level-set. 
Simplified Reflection Models of Representative Ground Metal Target in Millimeter Wave Passive Surveillance
《高电压技术》2013年第10期2409-2414,共6页WENG Xiaodi LU Xuliang TIAN Yu SUI Mingxu LI Yupeng 
supported by Jiangsu Key laboratory of Spectral Imaging&Intelligent Sense(Nanjing University of Science and Technology)(30920130122XXX)
For designing camouflage of ground metal target against millimeter wave(MMW) passive detections,based on the radiation and reflection theories related to MMW passive detection and an assumption of high frequency appro...
关键词：金属目标 毫米波 模型 辐射温度 成像实验 不均匀分布 地面反射 垂直方向 
Analytical Dielectric Spectrum Formula Based on Representative Frequencies
《Chinese Journal of Chemical Physics》2009年第3期262-268,339,共8页孔博 傅克祥 单敏华 李象远 
This work was supported by the National Natural Science Foundation of China （No.20533070 and No.20873087）.
According to experimental data available for the complex refractive index of particular dielectrics, a dielectric spectrum formula is proposed by the least square fitting technique combined with selected natural frequ...
关键词：FREQUENCY Least square fitting technique Dielectric spectrum Optical constant POLARIZATION 
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