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Semi-supervised learning based hybrid beamforming under time-varying propagation environments

Digital Communications and Networks 2024年第4期10卷 1168-1177页

作者： Yin Long Hang Ding simon murphy School of Computer Science and Technology Southwest University of Science and TechnologyMianyang621000China Department of Computing Science University of AlbertaEdmontonT6G 2R3Canada

Hybrid precoding is considered as a promising low-cost technique for millimeter wave(mm-wave)massive Multi-Input Multi-Output(MIMO)*** this work,referring to the time-varying propagation circumstances,with semi-supervised Incremental Learning(IL),we propose an online hybrid beamforming ***,given the constraint of constant modulus on analog beamformer and combiner,we propose a new broadnetwork-based structure for the design model of hybrid *** with the existing network structure,the proposed network structure can achieve better transmission performance and lower ***,to enhance the efficiency of IL further,by combining the semi-supervised graph with IL,we propose a hybrid beamforming scheme based on chunk-by-chunk semi-supervised learning,where only few transmissions are required to calculate the label and all other unlabelled transmissions would also be put into a training data *** the existing single-by-single approach where transmissions during the model update are not taken into the consideration of model update,all transmissions,even the ones during the model update,would make contributions to model update in the proposed *** the model update,the amount of unlabelled transmissions is very large and they also carry some information,the prediction performance can be enhanced to some extent by these unlabelled channel *** results demonstrate the spectral efficiency of the proposed method outperforms that of the existing single-by-single ***,we prove the general complexity of the proposed method is lower than that of the existing approach and give the condition under which its absolute complexity outperforms that of the existing approach.

关键词： Hybrid beamforming Time-varying environments Broad network Semi-supervised learning Online learning

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Prevalence and Associations Between Traumatic Brain Injury and Mental Health Difficulties Within UK Veterans Accessing Support for Mental Health Difficulties

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Psychology Research 2015年第11期5卷 613-623页

作者： Dominic murphy simon Wessely Michael John Deborah Walter Busuttil

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区域零售企业的未来:打造中国“人本主义零售”

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服务外包 2023年第1期 66-77页

作者：章一博丁佳川胡昊鹏李悦婷吕晃 Chris Biggs Gavin Parker simon murphy 彭建真孙民仕波士顿咨询公司(中国区) 波士顿咨询公司(全球及亚太) 中国连锁经营协会

中国实体零售短短三十年从“跑马圈地”时代,直接跃入了全球范围内最猛烈的线上渗透,新零售、新模式、新业态在资本加持下叠出不穷。未来十年,零售应赢在“以慢打快”,循序渐进地打造“源于人、惠于人、成于人”的三大能力,以三种能力... 详细信息

中国实体零售短短三十年从“跑马圈地”时代,直接跃入了全球范围内最猛烈的线上渗透,新零售、新模式、新业态在资本加持下叠出不穷。未来十年,零售应赢在“以慢打快”,循序渐进地打造“源于人、惠于人、成于人”的三大能力,以三种能力螺旋上升的模式平衡变革节奏。

关键词：螺旋上升实体零售新业态全球范围三种能力人本主义循序渐进未来十年

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济南解放阁舜井片区概念规划

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中国建筑装饰装修 2011年第1期 114-119页

作者：温子先温群傅明程郭文斐辛黎黎阮竞牟瞳王祥孔迪 simon murphy 汤青 Benjamin Chen 台湾铭传大学建筑系清华大学中央美术学院凯达环球建筑设计咨询(北京)有限公司

南解放阁不仅成为革命传统教育的重要阵地,而且也已成为济南标志性的建筑之一。本方案的设计是对历史街区场所精神重塑的必要性的展现,同时将解放阁与周围规划的现代建筑场所完美融合。

关键词：概念规划济南建筑场所传统教育场所精神历史街区标志性

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Design of face-hobbed spiral bevel gears with reduced maximum tooth contact pressure and transmission errors

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Chinese Journal of Aeronautics 2013年第3期26卷 777-790页

作者： Vilmos simon Budapest University of Technology and Economics Faculty of Mechanical Engineering Department for Machine Design

The aim of this study is to define optimal tooth modifications, introduced by appropriately chosen head-cutter geometry and machine tool setting, to simultaneously minimize tooth contact pressure and angular displacement error of the driven gear （transmission error） of face-hobbed spiral bevel gears. As a result of these modifications, the gear pair becomes mismatched, and a point contact replaces the theoretical line contact. In the applied loaded tooth contact analysis it is assumed that the point contact under load is spreading over a surface along the whole or part of the ‘‘potential’’ contact line. A computer program was developed to implement the formulation provided above. By using this program the influence of tooth modifications introduced by the variation in machine tool settings and in head cutter data on load and pressure distributions, transmission errors, and fillet stresses is investigated and discussed. The correlation between the ease-off obtained by pinion tooth modifications and the corresponding tooth contact pressure distribution is investigated and the obtained results are presented.

关键词： Ease-off Face-hobbed spiral bevel gears Load distribution Transmission errors Gear teeth

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Looking into the future of Nanoelectronics in the Diversification Efficient Era

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Science China(Information Sciences) 2016年第6期59卷 6-19页

作者： simon DELEONIBUS Universit′es Grenoble Alpes CEA LETIMINATEC Campus

The linear scaling of CMOS has encountered, since its beginning, many hurdles which request new process modules, driven mainly by the maximization of energy efficiency. Fabrication at the sub 10 nm node level will request Intrinsic Variability approaching to zero. The rapid growth of mobile, multifunctional and autonomous systems is hardly demanding to reach Zero Power consumption. The solutions to integrate Thin Film based devices, architectures and systems in order to face these challenges are described.

关键词： CMOS thin films heterogeneous integration NEMS 3D integration sequential parallel zero intrinsic variability zero power systems

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Some remarks and problems on complex homogeneous domains Dedicated to Professor Sheng GONG on the occasion of his 75th birthday

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Science China Mathematics 2006年第11期49卷 1655-1661页

作者： GINDIKIN simon Department of Mathematics Hill Center Rutgers University110 Frelinghysen RoadPiscatawayNJ 088548019USA

We discuss some problems on rigidity of canonical realizations of complex homogeneous domains at Cn

关键词： complex homogeneous domain, Siegel domain, Cartan domain, homogeneous cone, tube domain, Cauchy kernel.

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LIOUVILLE TYPE THEOREM FOR THE STATIONARY EQUATIONS OF MAGNETO-HYDRODYNAMICS

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Acta Mathematica Scientia 2019年第2期39卷 491-497页

作者： simon SCHULZ Mathematical Institute University of Oxford

We show that any smooth solution(u, H) to the stationary equations of magnetohydrodynamics belonging to both spaces L^6(R^3) and BMO^(-1)(R^3) must be identically *** is an extension of previous results, all of which systematically required stronger integrability and the additional assumption ▽u, ▽H∈L^2(R^3), i.e., finite Dirichlet integral.

关键词： Liouville theorem Caccioppoli inequality Navier-Stokes equations MHD

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The Quantum Consistency of the Ten-Dimensional Heterotic String Effective Action

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Communications in Theoretical Physics 2011年第5期55卷 857-862页

作者： simon Davis Research Foundation of Southern California

The finiteness of superstring theory at each order in perturbation theory is considered with respect to the ten-dimensional effective action. The quantum consistency of the ten-dimensional superstring effective action is confirmed with an analysis of the perturbative expansion of the quartic sector. It is found to be compatible with the finiteness of reduced four-dimensional theory. Furthermore, implications for the validity of superstring perturbation theory at lower energies is considered.

关键词： effective action gauge potential renormalizability

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Integrated optical-readout of a high-Q mechanical out-of-plane mode

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Light(Science & Applications) 2022年第10期11卷 2485-2491页

作者： Jingkun Guo simon Groblacher Kavli Institute of Nanoscience Department of Quantum NanoscienceDelft University of Technology2628CJ DelftThe Netherlands

The rapid development of high-QM macroscopic mechanical resonators has enabled great advances in *** improvements could allow for quantum-limited or quantum-enhanced applications at ambient *** of the remaining challenges include the integration of high-QM structures on a chip,while simultaneously achieving large coupling strengths through an optical ***,we present a versatile fabrication method,which allows us to build fully integrated optomechanical *** place a photonic crystal cavity directly above a mechanical resonator with high-QM fundamental out-of-plane mode,separated by a small *** highly confined optical field has a large overlap with the mechanical mode,enabling strong optomechanical interaction ***,we implement a novel photonic crystal design,which allows for a very large cavity photon number,a highly important feature for optomechanical experiments and sensor *** versatile approach is not limited to our particular design but allows for integrating an out-of-plane optical read-out into almost any device ***,it can be scaled to large arrays and paves the way to realizing quantum experiments and applications with mechanical resonators based on high-QM out-of-plane modes alike.

关键词： optical resonator mode

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