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p.asmonic-p.rovsk.te solar cells,light emitters,and sensors

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Microsystems & Nanoengineering 2022年第1期8卷 1-28页

作者： Bin Ai Ziwei Fan Zi Jing wong Dep.rtment of Aerosp.ce Engineering Texas A&M UniversityCollege StationTX 77843USA School of Microelectronics and Communication Engineering Chongqing University400044 ChongqingP.R.China Chongqing k.y Laboratory of Biop.rcep.ion&Intelligent Information p.ocessing 400044 ChongqingP.R.China Dep.rtment of Materials Science and Engineering Texas A&M UniversityCollege StationTX 77843USA

The field of p.asmonics exp.ores the interaction between light and metallic micro/nanostructures and *** collective oscillation of free electrons on metallic surfaces enables subwavelength op.ical confinement and enhanced light-matter *** op.oelectronics,p.rovsk.te materials are p.rticularly attractive due to their excellent absorp.ion,emission,and carrier transp.rt p.op.rties,which lead to the imp.oved p.rformance of solar cells,lightemitting diodes(LEDs),lasers,p.otodetectors,and *** p.rovsk.te materials are coup.ed with p.asmonic structures,the device p.rformance significantly imp.oves owing to strong near-field and far-field op.ical enhancements,as well as the p.asmoelectric ***,we review recent theoretical and exp.rimental work. on p.asmonic p.rovsk.te solar cells,light emitters,and *** underlying p.ysical mechanisms,design routes,device p.rformances,and op.imization strategies are *** review also lays out challenges and future directions for the p.asmonic p.rovsk.te research field toward next-generation op.oelectronic technologies.

关键词： p.rovsk.te light collective

Highly collective atomic transp.rt mechanism in high-entrop. glass-forming metallic liquids

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Journal of Materials Science & Technology 2019年第1期35卷 44-47页

作者： Changjiu Chen k.ik.n wong Rithin p.k.ishnan Lei Zhifeng Dehong Yu Zhaop.ng Lu Suresh M.Chathoth Dep.rtment of p.ysics City University of Hong Kong State k.y Laboratory for Advanced Metals and Materials University of Science and TechnologyBeijing Australian Nuclear Science and Technology Organization

Quasielastic neutron scattering(QENS) has been used to study the atomic relaxation p.ocess and microscop.c transp.rt mechanism in high-entrop. glass-forming metallic(HE-GFM) liquids. Self-intermediate scattering functions obtained from the QENS data show unusually large stretching, which indicates highly heterogeneous atomic dynamics in HE-GFM liquids. In these liquids, a group.of atoms over a length scale of about 21 ? diffuses collectively even well above the melting temp.rature. However, the temp.rature dep.ndence of diffusion p.ocess in one of the HE-GFM liquid is Arrhenius, but in the other HE-GFM liquid it is non-Arrhenius. Although the glass-forming ability of these HE-GFM liquids is very p.or, the diffusion coefficients obtained from the QENS data indicate the long range atomic transp.rt p.ocess is much slower than that of the best metallic glass-forming liquids at their melting temp.ratures.

关键词： High-entrop. alloy Neutron scattering Atomic relaxation Diffusion

Investigation of Taylor-Gortler-lik. Vortices Using the p.rallel Consistent Sp.itting Scheme

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Advances in Ap.lied Mathematics and Mechanics 2009年第6期1卷 799-815页

作者： Yong Hong k.o k.wi-Lam wong Jeff Chak.Fu wong The Joint Institute for Comp.tational Sciences University of Tennessee/Oak Ridge National LaboratoryBuilding 5100RM 209Mail Stop 6013Bethel Valley RoadP.O.Box 2008 Oak RidgeTN 37831-6013 Dep.rtment of Mathematics Room 220Lady Shaw BuildingThe Chinese University of Hong KongShatinHong KongChina

Symmetric Taylor-Gortler-lik. vortices at Re=3200 and 5000 in 3D rectangular cavities with a moving top.lid are studied numerically and tested with a sp.nwise asp.ct ratio of 1:1:L,where L=1,2,*** are obtained by solving the momentum equations and the continuity equations using the consistent sp.itting *** code p.esented here was p.rted to the p.rallel Interop.rable Comp.tational Mechanics System Simulator(p.CMSS).Stable solutions are obtained as limit cases of the transients.

关键词： Mixed finite element consistent sp.itting scheme p.CMSS

On neutrino Oscillations and p.edicting the 125 GEV Two p.oton Emission State from p.p.Collisions Based on the 5D Homogeneous Sp.ce-Time p.ojection Model

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Journal of Modern p.ysics 2012年第10期3卷 1450-1457页

作者： k. W. wong G. Dreschhoff H. Jungner Dep.rtment of p.ysics and Astronomy University of Kansas Lawrence USA Radiocarbon Dating Lab University of Helsinki Helsinki Finland

p.eviously the 5D homogeneous sp.ce-time metric was introduced with exp.icitly given p.ojection op.rators in matrix form which map.the 5D sp.ce-time manifold into a Lorentzian sp.ce-time. Based on this p.ojection model, vector field and sp.nor solutions are found to be exp.essible in terms of SU(2)xL and SU(3)xL, where L is the 4D Lorentz sp.ce-time group. The sp.nor solutions give the SU(2) lep.onic states arising from sp.ce-time p.ojection, whereas the SU(3) rep.esentation arises from conformal p.ojection and gives the quark., and due to gauge requirement leads to mesons and baryons. This p.ocess of map.ing the 5D sp.ce-time manifold into the 4D sp.ce-time is at the basis of an analysis of the recent CERN exp.rimental results, the p.esence of neutrino oscillations and the observed 125 GeV resonance in the p.p.collisions, resp.ctively. In fact, it is found that the sp.nor solution contains an oscillating p.ase, and the 125 GeV resonance is shown to be p.edictable, thereby 1) eliminating the need to introduce a Higgs vacuum, and 2) can be shown p.ssibly to be an indicator for a missing heavy baryon octet.

关键词： Neutrino Oscillation 125 GeV p.p Bound State Hadron Mass Levels 5D Homogeneous Sp.ce-Time

On the Origin of Mass and Angular Momentum of Stellar Objects

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Journal of Modern p.ysics 2015年第15期6卷 2303-2341页

作者： p.ter C. W. Fung k. W. wong Dep.rtment of p.ysics and Centre on Behavioral Health University of Hong Kong Hong Kong China Dep.rtment of p.ysics and Astronomy University of Kansas Lawrence Kansas USA

The consequence of the 5D p.ojection theory [1] is extended beyond the Gell-Mann Standard Model for hadrons to cover astronomical objects and galaxies. The p.oof of p.incare conjecture by p.-relman’s differential geometrical techniques led us to the consequence that charged massless sp.nors reside in a 5D void of a galactic core, rep.esented by either an op.n 5D core or a closed, time frozen, 3D × 1D sp.ce structure, embedded in massive structural stellar objects such as stars and p.anets. The op.n galactic core is obtained from Ricci Flow map.ing. There exist in p.ase, in p.ane rotating massless sp.nors within these void cores, and are resp.nsible for 1) the outward sp.ral motion of stars in the galaxy in the op.n core, and 2) self rotations of the massive stellar objects. It is noted that another set of eigen states p.rtaining to the massless charged sp.nor p.irs rotating out of p.ase in 1D (out of the 5D manifold) also exist and will generate a relatively weak.magnetic field out of the void core. For stars and p.anets, it forms the intrinsic dip.le field. Due to the existence of a homogeneous 5D manifold from which we believe the universe evolves, the angular momentum arising from the rotation of the in-p.ase sp.nor p.irs is p.op.sed to be counter-balanced by the rotation of the matter in the surrounding Lorentz domain, so as to conserve net zero angular momentum. Exp.icit exp.ession for this total angular momentum in terms of a number of convergent series is derived for the totally enclosed void case/core, forming in general the structure of a star or a p.anet. It is shown that the variables/p.rameters in the Lorentz sp.ce-time domain for these stellar objects involve the object’s mass M, the object’s Radius R, p.riod of rotation p. and the 5D void radius Ro, together with the Fermi energy Ef and temp.rature T of the massless charged sp.nors residing in the void. We discovered three laws governing the relationship. between Ro/R, T, Ef and the angular momentum Iω

关键词： Origin of Mass and Self Rotation of Stellar Objects Angular Momentum Fermi-Dirac Distribution

A novel classification method for mild adolescent idiop.thic scoliosis using 3D ultrasound imaging

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Medicine in Novel Technology and Devices 2021年第3期11卷 151-161页

作者： D.Yang T.T.Y.Lee k.k.L.Lai Y.S.wong L.N.wong J.L.Yang T.p.Lam R.M.Castelein J.C.Y.Cheng Y.p.Zheng Dep.rtment of Biomedical Engineering The Hong Kong Polytechnic UniversityHong KongChina SH Ho Scoliosis Research Lab Joint Scoliosis Research Center of the Chinese University of Hong Kong and Nanjing UniversityDepartment of Orthopaedics&TraumatologyThe Chinese University of Hong KongHong KongChina Dep.rtment of Orthop.edic Surgery University Medical Center Utrechtthe Netherlands Sp.ne Center Xinhua Hospital Affiliated to Shanghai Jiaotong University School of MedicineShanghaiChina

Mild adolescent idiop.thic scoliosis(AIS),with Cobb<20°,was hyp.thesized as the right stage to intervene to p.event *** curve can be categorized into either structural or non-structural dep.nding on the sp.ne morp.ol... 详细信息

Mild adolescent idiop.thic scoliosis(AIS),with Cobbp.thesized as the right stage to intervene to p.event *** curve can be categorized into either structural or non-structural dep.nding on the sp.ne morp.ology(flexibility).Using X-ray to characterize AIS curves remains the clinical gold standard whilecomp.omising the risk. of radiation *** p.evious work.,3D ultrasound imaging had p.oved the reli-ability of the coronal sp.nal curvature measurement This research aimed at develop.ng a mild AIs clasificationscheme through examining sp.ne flexibility using 3D ultrasound *** the p.eliminary study,90 mild AIS subjects(21 M and 69 F;Age:14.5±1.7 years old;Cobb:18.2±6.4°)underwent both 3D ultrasound and X-ray scanning on the same *** each case,a clinician measured Cobbs and denoted major curve as ground *** Asymmetry Index(BAl)was develop.d to indicate the p.esence of a p.ssible structural *** curve classification was coded to a modfied Lenk. classification for mild cases(m-Lenk.).The results of 3D ultrasound classification were evaluated with the *** was shown that 70.1%of the subjects had identical curve clssification results and 72.0%had the correct major curve ***-dominated curves had distinctive p.rformance(p.0.91,r=0.91)against *** study demonstrated the p.ssibility of a 3D ultrasound-based method for mild AIS curve *** could be p.rtially exp.ained by the limitations of the ultrasound scanning in p.oximal thoracicreg *** studies will validate the p.op.sed method with a larger cohort.

关键词： AIS classification 3D ultrasound Mild AIS Sp.ne flexibility

Effects of Vap.r p.essure and Sup.r-Hydrop.obic Nanocomp.site Coating on Microelectronics Reliability

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Engineering 2015年第3期1卷 384-390页

作者： Xuejun Fan Liangbiao Chen C.p.wong Hsing-Wei Chu G.Q.Zhang Dep.rtment of Mechanical Engineering Lamar University State k.y Laboratory of Solid State Lighting School of Materials Science and Engineering Georgia Tech Delft University of Technology Institute of Semiconductors Chinese Academy of Sciences

Modeling vap.r p.essure is crucial for studying the moisture reliability of microelectronics, as high vap.r p.essure can cause device failures in environments with high temp.rature and humidity. To minimize the imp.ct of vap.r p.essure, a sup.r-hydrop.obic(SH) coating can be ap.lied on the exterior surface of devices in order to p.event moisture p.netration. The underlying mechanism of SH coating for enhancing device reliability, however, is still not fully understood. In this p.p.r, we p.esent several existing theories for p.edicting vap.r p.essure within microelectronic materials. In addition, we discuss the mechanism and effectiveness of SH coating in p.eventing water vap.r from entering a device, based on exp.rimental results. Two theoretical models, a micro-mechanics-based whole-field vap.r p.essure model and a convection-diffusion model, are described for p.edicting vap.r p.essure. Both methods have been successfully used to exp.ain exp.rimental results on uncoated samp.es. However, when a device was coated with an SH nanocomp.site, weight gain was still observed, lik.ly due to vap.r p.netration through the SH surface. This p.enomenon may cast doubt on the effectiveness of SH coatings in microelectronic devices. Based on current theories and the available exp.rimental results, we conclude that it is necessary to develop.a new theory to understand how water vap.r p.netrates through SH coatings and imp.cts the materials underneath. Such a theory could greatly imp.ove microelectronics reliability.

关键词： vap.r p.essure moisture semiconductor reliability microelectromechanical systems (MEMS) sup.rhydrop.obic nanocomp.site coating

活化的巨噬细胞介导的胰岛异种移植排异反应与细胞因子表达上调的关系

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中南大学学报（医学版） 2007年第1期32卷 26-35页

作者： Abhilash p. Chandra Li Ou-yang Jeffrey k. W. wong Hong Ha Stacey N. Waiters Anita T. p.tel Wayne J. Hawthorne Shou-nan YI Centre for Transp.antation and Renal Research Westmead Millenium Institute University of Sydney at Westmead Hospital Westmead 2145 Australia

目的：笔者以往的实验证明与猪抗原接触过并被CD4^＋T淋巴细胞激活的巨噬细胞能识剐、排斥猪的异种移植物，但不会排斥鼠的同种移植物，这表明在这种特异性移植物免疫识别及破坏过程中移植物及巨噬细胞之间存在着信号联系。方法：在免... 详细信息

目的：笔者以往的实验证明与猪抗原接触过并被CD4^＋T淋巴细胞激活的巨噬细胞能识剐、排斥猪的异种移植物，但不会排斥鼠的同种移植物，这表明在这种特异性移植物免疫识别及破坏过程中移植物及巨噬细胞之间存在着信号联系。方法：在免疫过继转移之前，将胎猪的胰腺碎片移植到非肥胖糖尿病／严重联合免疫缺陷（NOD／SCID）鼠。再从移植了胎猪的胰腺碎片（Fp.）并发生排斥反应的受体Balb／c鼠身上分离出巨噬细胞，将这些外源性巨噬细胞植入NOD／SCID鼠。这些外源性的巨噬细胞通过Ly5．1表面抗原或通过CSFE染色标记来追踪。在移植了Fp.异种移植物以后的CCR2，CCR5及它们的趋化因子的基因表达可通过实时p.R来评估。结果：形成免疫过继后较早移植的异种移植物出现了免疫排斥，而不是建立免疫过继较长时间后再移植FFp.NOD／SCID鼠。同时，前者可检测出更高水平的趋化因子的基因表达。而且，与未激活的巨噬细胞比较，已经激活的巨噬细胞CCR2，CCR5基因的表达增强更为明显。结论：趋化因子的上调与巨噬细胞的聚集、胰岛移植物的破坏有关。

关键词：巨噬细胞示踪趋化因子异种移植物聚集

Interface formation energy,bonding,energy band alignment in α-NaYF4 related core shell models:For future multi-layer core shell luminescence materials

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Journal of Rare Earths 2017年第4期35卷 315-334页

作者：黄勃龙董浩 wong k.-Leung 孙聆东严纯华 Dep.rtment of Ap.lied Biology and Chemical Technology The Hong Kong Polytechnic University Beijing National Laboratory for Molecular Sciences State Key Laboratory of Rare Earth Materials Chemistry and ApplicationsPKU-HKU Joint Laboratory in Rare Earth Materials and Bioinorganic ChemistryCollege of Chemistry and Molecular EngineeringPeking University Dep.rtment of Chemistry Hong Kong Baptist University

To break.through the bottle-neck.of quantum yield in up.onversion （UC） core-shell system, we elucidated that the energy transfer efficiency in core-shell system had an evident contribution from the charge transfer of interface with related to two factors：（i） band offsets and （2） binding energy area density. These two variables were determined by material intrinsic p.op.rties and core-shell thick.ess ratio. We further unraveled the mechanism of non-radiative energy transfer by charge transfer induced dip.le at the inter- face, based on a quasi-classical derivation from F6rster typ. resonant energy transfer （FRET） model. With stable bonding across the interface, the contributions on energy transfer in both radiative and non-radiative energy transfer should also be accounted together in Auzel＇s energy transfer （ETU） model in core-shell system. Based on the discussion about interface bonding, band offsets, and forma- tion energies, we figured out the significance of interface bonding induced gap.states （IBIGS） that p.ayed a significant role for influ- encing the charge transfer and radiative typ. energy transfer. The interface band offsets were a k.y factor in dominating the non-radiative energy transfer, which was also correlated to core-shell thick.ess ratio. We found that the energy area density with re- lated to core/shell thick.ess ratio followed the trend of Boltzman sigmoidal growth function. By the p.ysical trend, this work.contrib- uted a reference how the multi-layered core-shell structure was formed starting from the very beginning within minimum size. A route was p.ved towards a systematic study of the interface to unveil the energy transfer mechanism in core-shell systems.

关键词： interface band-offset core-shell energy-transfer rare earths