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Photonics Research 2021年第5期9卷 856-864页

作者： DI LIN jOEL CARPENTER YUTONG FENG YONGMIN jUNG SHAIF-UL ALAM DAVID j.RICHARDSON Optoelectronics Research Centre University of SouthamptonSouthampton SO171BJUK School of Information Technology and Electrical Engineering The University of QueenslandBrisbaneQLD 4072Australia

Optical angular momentum(OAM)-based structured light beams provide an additional degree of freedom for practical applications ranging from optical communication to laser-based material processing. Many techniques exist for generating such beams within laser sources and these primarily rely upon the use of specially designed optical components that limit laser power scaling and ready tunability of the topological charge and polarization of the output OAM beams. Here we show that some of these limitations can be overcome by employing a computer controlled reflective phase-only spatial light modulator to adaptively tailor the input(and subsequent output) beam wavefront and polarization in a few-mode fiber amplifier. In this way modal-coupling-induced beam distortion within the fiber amplifier can be mitigated and we are able to generate at will any desired supported spatial mode guided in the fiber, including conventional linearly polarized(LP) modes, scalar OAM modes, and cylindrical vector modes, at average powers >10 W and with a peak power of >11 kW. Our results pave the way to the realization of practical high-power structured laser sources with tunable chirality and polarization.

关键词： amplifier fiber power

Computer Skills in Humanistic Discipline： Some Observations

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journal of Literature and Art Studies 2017年第3期7卷 361-365页

作者： Deborah j. Schuster Gerardo M. Acay Middle School Science Boonville R1 Schools Boonville Missouri USA Division of Social Science Missouri Valley College Marshall Missouri USA

This paper explores the myriad capabilities of that contraption, the computer, and its attendant role in the development of creative thought and logical thinking; skills （we could have used the word ＂knowledge＂ instead of skills; but to avoid the unnecessary ambiguity of the former, we shall drop it and talk of skills instead） which the humanistic disciplines and related disciplines in the social sciences and in natural sciences should inculcate. The process of acquiring these skills assumes that one rational animal-the student develops her/his rational powers by studying the wisdom and folly of other rational animals-the authors of various works and/or disciplines the student is set to study. In a word, what is dealt with specifically in the humanistic disciplines, in swimming and riding bicycles, leave us only when decrepitude invades our minds and bodies. In short, students must learn to think. This is an obvious platitude.

关键词： computer skills critical/logical thinking humanistic rational

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基于最优化少量电极的思维任务脑机接口

东南大学学报（自然科学版） 2016年第5期46卷 934-938页

作者：孙瀚张雄王保平 Bruce j Gluckman 刘嘉阳仲雪飞樊兆雯张玉张春东南大学电子科学与工程学院南京210096 宾夕法尼亚州立大学工程学院美国斯泰特克利奇16803

为减少脑机接口的电极数量,采用基于最优化少量电极的共空间模式(CSP)算法提取不同思维任务下的脑电信号(EEG)特征值.首先,根据事件相关(去)同步化现象观察时频特性;然后,运用熵准则对单个电极进行可分性度量;最后,根据可分性排序,利用... 详细信息

为减少脑机接口的电极数量,采用基于最优化少量电极的共空间模式(CSP)算法提取不同思维任务下的脑电信号(EEG)特征值.首先,根据事件相关(去)同步化现象观察时频特性;然后,运用熵准则对单个电极进行可分性度量;最后,根据可分性排序,利用基于最优化少量电极的CSP算法和支持向量机算法对不同电极组合的特征值进行提取和分类,得出最优化的电极组合.结果表明,进行心算和想像空间旋转2种思维任务时被试的EEG信号在顶叶和枕叶区域存在明显的能量差异,6个被试可分性最高的电极均位于这2个区域;与传统的EEG信号处理算法相比,基于最优化少量电极的算法可以使系统使用的电极数减少至3.3个,并且分类正确率提高5.4%.因此,采用基于最优化少量电极的算法可以减少电极数目,改善思维任务脑机接口的性能.

关键词：思维任务脑机接口最优化少量电极共空间模式熵准则

Mathematical Structure for Electromagnetic Frequencies that May Reflect Pilot Waves of Bohm’s Implicate Order

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journal of Modern Physics 2018年第5期9卷 851-897页

作者： Hans j.H.Geesink Dirk K.F.Meijer Ir.Previous Project Leader Nanotechnology DSMGeleenThe Netherlands Pharmacokinetics and Drug Targeting University of GroningenGroningenThe Netherlands

The mathematical basis for the earlier reported spectrum of discrete electromagnetic field (EMF) frequencies that were shown to affect health and disease is substantiated and generalized in the present paper. The particular EMF pattern was revealed by a meta-analysis of, now, more than 500 biomedical publications that reported life-sustaining as well as life-decaying EMF frequencies. These discrete eigenfrequency values can be related to supposed bio-resonance of solitons or polaron quasi particles in life systems. Bio-solitons are conceived as self-reinforcing solitary waves that are constituting local fields, being involved in intracellular geometric ordering and patterning, as well as in intra- and inter-cellular signalling. Literature search, revealed very similar frequency patterns for wave resonances of nucleotides in aqueous solution, for a candidate RNA-catalyst, as well as for sound-induced vibrations evoked in thin vibrating membranes. This collective evidence points at a generalized biophysical algorithm underlying complexity in nature, evidently manifest in both animate and non-animate modalities. The detected EMF eigenfrequencies could be arithmetically scaled according to an adapted Pythagorean tuning. The mathematical analysis shows that the derived arithmetical scale exhibits a sequence of unique products of integer powers of 2, 3 and a factor .?This generalized semi-harmonic frequency spectrum may reflect a discrete pilot-wave structure that can be interpreted as a, so called, hidden variable in Bohm’s causal interpretation of quantum field theory.

关键词： Life Algorithm Quantum Mechanics Bohm Frohlich Philolaus Pythagoras

Controlled generation of picosecond-pulsed higher-order Poincaré sphere beams from an ytterbium-doped multicore fiber amplifier

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Photonics Research 2023年第2期11卷 181-188页

作者： KUNHAO jI DI LIN IAN A. DAVIDSON SIYI WANG jOEL CARPENTER YOSHIMICHI AMMA YONGMIN jUNG MASSIMILIANO GUASONI DAVID j. RICHARDSON Optoelectronics Research Centre University of SouthamptonSouthampton SO171BJUK Institute of Advanced Photonics Technology School of Information EngineeringGuangdong University of TechnologyGuangzhou 510006China Guangdong Provincial Key Laboratory of Photonics Information Technology Guangdong University of TechnologyGuangzhou 510006China School of Information Technology and Electrical Engineering The University of QueenslandBrisbaneQLD 4072Australia Fujikura Ltd. Chiba 285-8550Japan

Higher-order Poincarésphere(HOPS) beams with spatially variable polarization and phase distributions are opening up a host of unique applications in areas ranging from optical communication to ***, the flexible generation of these beams with high peak power from compact laser systems remains a challenge. Here, we demonstrate the controlled generation of HOPS beams based on coherent beam combination from an Yb-doped multicore fiber(MCF) amplifier. Using a spatial light modulator to adaptively adjust the wavefront and polarization of the signals seeded into the individual cores of the MCF various structured beams(including cylindrical vector beams and first-and second-order vortex beams) were generated with peak powers up to 14 k W for ~92 ps pulses.

关键词： amplifier polarization fiber

新一代磁性位置传感器助力无人机、轻工业、医疗以及太空机器人应用

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传感器世界 2018年第11期24卷 38-40页

作者： Mark j.Donovan 艾迈斯半导体

随着机器人和无人机市场的快速发展,服务于此市场的新型磁性位置传感器更加智能,具有更高的分辨率和精度、更小的体积、更轻的重量,而且功耗远远低于其前代产品。本文将简述一下磁性位置传感器的历史,以及它们以往所服务的终端市场和服... 详细信息

随着机器人和无人机市场的快速发展,服务于此市场的新型磁性位置传感器更加智能,具有更高的分辨率和精度、更小的体积、更轻的重量,而且功耗远远低于其前代产品。本文将简述一下磁性位置传感器的历史,以及它们以往所服务的终端市场和服务方式,然后深入探讨当今新一代器件中引入的特殊的新功能和性能。最后,聚焦机器人和无人机领域,分享这些新式的创新型磁性位置传感器的几个用例。

关键词：磁性位置传感器无人机机器人

The Three-Dimensional TWT Multi-Signal Nonlinear Beam-Wave Interaction

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The Three-Dimensional TWT Multi-Signal Nonlinear Beam-Wave I...

2018年急性缺血性卒中患者早期管理指南美国心脏协会／美国卒中协会为医疗专业人员制定的指南

2002 3rd International Conference on Microwave and Millimeter Wave Technology

作者： j.Q.Li Y.L.Mo Y.Zhang Institute of High Energy Electronics University of Electronic Science and Technology of China

＜正＞Based upon the model of Rowe’s transmission -line equivalent circuit,using the maximal common submultiple fundamental frequency,a 3-dimensional（3D） multi-signal nonlinear model of beam-wave interaction in a helix traveling-wave tube （TWT） has been *** 3D model describes 2D RF fields,3D ac space-charge fields and 3D ac electron *** model has been implemented in the HTWT3D code,which can calculate any number of simultaneous signals,including input signals and their intermodulation *** from the HTWT3D code are shown to compare with measurements of output powers *** power.

关键词： Radio frequency Power generation Transmission lines Equivalent circuits Electron beams Power system modeling Communication systems Artificial satellites Space charge Optical modulation

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国际脑血管病杂志 2018年第2期26卷 81-113页

作者： William j. powers Alejandro A. Rabinstein Teri Ackerson Opeolu M. Adeoye Nicholas C. Bambakidis Kyra Becker josé Biller Michael Brown Bart M. Demaerschalk Brian Hoh Edward C. jauch Chelsea S. Kidwell Thabele M. Leslie-Mazwi Bruce Ovbiagele Phillip A. Scott Kevin N. Sheth Andrew M. Southerland Deborah V. Summers David L. Tirschwell 徐加平刘慧慧张霞石际俊黄志超尤寿江郭志良肖国栋杜万良曹勇军美国心脏协会卒中委员会苏州大学附属第二医院 215004 首都医科大学附属北京天坛医院北京100050

背景和目的本指南旨在在单个文件中为治疗成年急性动脉性缺血性卒中患者的临床医生提供最新全面的系列推荐意见。目标读者为院前急救人员、医生、综合医疗保健人员和医院管理人员。本指南将取代2013年版指南及其后续更新。方法写作组成... 详细信息

背景和目的本指南旨在在单个文件中为治疗成年急性动脉性缺血性卒中患者的临床医生提供最新全面的系列推荐意见。目标读者为院前急救人员、医生、综合医疗保健人员和医院管理人员。本指南将取代2013年版指南及其后续更新。方法写作组成员由美国心脏协会卒中委员会的科学声明监督委员任命，代表各领域的医学专家。严格遵循美国心脏协会的利益冲突原则。不允许写作组成员对存在企业利益关系的相关议题进行讨论或投票。所有推荐意见必须得到写作组成员的一致通过，除非企业利益关系妨碍了成员投票。由4名同行评议专家以及卒中委员会的科学声明监督委员会和领导委员会成员对指南草案进行发布前评审。本指南采用了美国心脏病学学会／美国心脏协会2015年推荐意见分类和证据级别标准以及新版美国心脏协会指南格式。结果本指南详细介绍了院前医疗、紧急和急诊评估、静脉和血管内治疗以及院内管理，包括在发病后最初2周内启用的二级预防措施。本指南支持院前和院内卒中医疗系统的一体化概念。结论本指南基于目前可获得的最佳证据。然而，许多情况资料有限，迫切需要对急性缺血性卒中的治疗进行持续研究。

关键词： AHA科学声明二级预防卒中治疗

Modelling ocular ageing in adults with well-controlled type I diabetes

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Advances in Ophthalmology Practice and Research 2022年第2期2卷 11-17页

作者： jos j.Rozema Adnan Khan David A.Atchison Visual Optics Lab Antwerp(VOLANTIS) Faculty of Medicine and Health SciencesAntwerp UniversityWilrijkBelgium Department of Ophthalmology Antwerp University HospitalEdegemBelgium Research Division Weill Cornell Medicine-QatarDohaQatar Faculty of Health Sciences Khyber Medical UniversityPeshawarPakistan Centre for Vision and Eye Research Queensland University of TechnologyKelvin GroveAustralia

Purpose:To develop a paraxial eye model based on a previously collected cohort of adults with well-controlled type 1 diabetes mellitus(DM1)and a limited range of refractive ***:The study used the previously published biometric data of 72 participants(Age:41.512.4 years)with *** included objective refraction,anterior and posterior corneal radii of curvatures,and internal ***,phakometry was used to determine the lens radii of curvature and lens equivalent indices,from which the lens powers were calculated.A multivariate linear regression was performed for each biometric parameter with respect to current age(Age),the time since the onset of diabetes(Tdb),and current levels of glycated hemoglobin(HbA1c).The vitreous chamber depth was determined from other distances,and lens equivalent index was chosen to balance the *** were compared with an existing model for nondiabetic ***:Some dependent parameters were not affected by the independent variables(spherical equivalent,anterior corneal radius of curvature,central corneal thickness),some were affected by time since onset(the lens radii of curvatures,anterior chamber depth)and others were affected by both age and time since onset(posterior corneal radius of curvature,lens thickness,axial length).None of the dependent parameters were affected by current levels of ***:The proposed model accurately describes the age-related changes in the eyes of people with *** this description the age of diabetes onset plays an important role,especially if the diabetes onset occurred during childhood.

关键词： Diabetes Eye model Refractive error

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基于正态云的船舶工业技术协同创新绩效评价

统计与信息论坛 2016年第9期31卷 62-68页

作者：刘志军张杰哈尔滨工程大学经济管理学院黑龙江哈尔滨150001 山东科技大学经济管理学院山东青岛266590

船舶制造业是一个国家的战略性产业。近年来,虽然中国船舶工业的自主创新能力有所加强,协同创新水平也有了很大地提升,但与传统的造船强国相比,在这两个方面均有较大的差距。在构建船舶工业技术协同创新的评价指标体系的基础上,采用正... 详细信息

船舶制造业是一个国家的战略性产业。近年来,虽然中国船舶工业的自主创新能力有所加强,协同创新水平也有了很大地提升,但与传统的造船强国相比,在这两个方面均有较大的差距。在构建船舶工业技术协同创新的评价指标体系的基础上,采用正态云模型对中国典型造船厂的技术协同创新绩效进行实证分析,研究表明:中国船舶工业技术协同创新水平偏低,科技创新能力较弱。因此,加强船企之间的技术协同创新能力是中国船舶工业不得不面对的突出问题。

关键词：船舶工业技术协同创新绩效正态云