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Journal of Electronic Science and Technology 2022年第1期20卷 20-29页

作者： Ling-Xi Hu Min Hu sheng-gang liu Terahertz Research Center School of Electronic Science and EngineeringUniversity of Electronic Science and Technology of ChinaChengdu 610054 Key Laboratory of Terahertz Technology(Ministry of Education) University of Electronic Science and Technology of ChinaChengdu 610054

The simulation mechanism of surface plasmon polaritons(SPPs)and localized surface plasmon(LSP)in different structures was studied,including the Au reflection grating(Au grating),Au substrate with dielectric ribbons grating(Au substrate grating),and pure electric conductor(PEC)substrate with Au ribbons grating(Au ribbons grating).And the characteristics of the Smith-Purcell radiation in these structures were *** results show that SPPs are excited on the bottom surface of Au substrate grating grooves and LSP is stimulated on the upper surface both of Au ribbons grating grooves and Au grating *** to the irreconcilable contradiction between optimizing the grating diffraction radiation efficiency and optimizing the SPPs excitation efficiency in the Au substrate grating,only 40-times enhancement of the radiation intensity was obtained by excited ***,the LSP enhanced structure overcomes the above problem and gains much better radiation enhancement ability,with about 200-times enhancement obtained in the Au ribbons grating and more than 500-times enhancement obtained in the Au *** results presented here provide a way of developing miniature,integratable,tunable,high-power-density radiation sources from visible light to ultraviolet rays at room temperature.

关键词： Coherent radiation high-power radiation localized surface plasmon(LSP) micro-nano structure Smith-Purcell radiation surface plasmon polaritons(SPPs)

A CASCADING LATIN SCHEME TO TOLERATE DOUBLE DISK FAILURES IN RAID ARCHITECTURES

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Journal of Electronics(China) 2010年第2期27卷 243-249页

作者： Lin sheng Wang gang liu Xiaoguang liu Jing Nankai-Baidu Joint Laboratory College of Information and Technical Science Nankai University Tianjin 300071 China

In recent years,a lot of XOR-based coding schemes have been developed to tolerate double disk failures in Redundant Array of Independent Disks (RAID) architectures,such as EVENODD-code,X-code,B-code and BG-HEDP. Despite those researches,the decades-old strategy of Reed-Solomon (RS) code remains the only popular space-optimal Maximum Distance Separable (MDS) code for all but the smallest storage systems. The reason is that all those XOR-based schemes are too difficult to be implemented,it mainly because the coding-circle of those codes vary with the number of disks. By contrast,the coding-circle of RS code is a constant. In order to solve this problem,we develop a new MDS code named Latin code and a cascading scheme based on Latin code. The cascading Latin scheme is a nearly MDS code (with only one or two more parity disks compared with the MDS ones). Nev-ertheless,it keeps the coding-circle of the basic Latin code (i.e. a constant) and the low encod-ing/decoding complexity similar to other parity array codes.

关键词： 2-erasure code Redundant Array of Independent Disks (RAID) Latin square

Surface plasmon polaritons frequency-blue shift in low confinement factor excitation region

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Chinese Physics B 2021年第8期30卷 345-350页

作者： Ling-Xi Hu Zhi-Qiang He Min Hu sheng-gang liu Terahertz Research Center School of Electronic Science and EngineeringUniversity of Electronic Science and Technology of ChinaChengdu 610054China Key Laboratory of Terahertz Technology Ministry of EducationChengdu 610054China

Surface plasmon polaritons'(SPPs')frequency blue shift is observed in finite-difference time-domain(FDTD)simulation of parallel electron excitation Au bulk *** with cold dispersion of SPPs,an obvious frequency blue shift is obtained in low confinement region excitation simulation ***,according to SPPs'transverse attenuation characteristics,the excited frequency mode instead of cold dispersion corresponding frequency mode matches ***,this excited mode is confirmed to be SPPs'*** is well known the lower the frequency,the smaller the confinement factor is and the lower the excitation efficiency,the wider the bandwidth of excited SPPs *** considering the attenuation in whole structure,the excited surface field contains attenuation *** a low confinement factor region,the higher the SPPs'frequency,the higher the excitation efficiency is,while broadband frequency information obtained in attenuation signal provides high frequency information in stimulation ***,in the beam-wave interaction,as the signal oscillation time increases,the frequency of the oscillation field gradually ***,compared with cold dispersion,the frequency of excited SPP is blueshifted This hypothesis is verified by monitoring the time domain signal of excited field in low and high confinement factor regions and comparing ***,this frequency-blue shift is confirmed to have commonality of SPPs,which is independent of SPPs'material and ***,this frequency-blue shift is confirmed in an attenuated total reflection(ATR)*** to frequency dependence of most of SPPs'devices,such as coherent enhancement radiation and enhancement transmission devices,the frequency-blue shift presented here is of great influence in the SPPs applications.

关键词： surface plasmon polaritons(SPPs) frequency-blue shift surface plasmon resonance(SPR) coherent enhancement radiation

Synthesis of novel chalcone derivatives and their stabilization effect of spiropyran in PMMA films

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Chinese Chemical Letters 2011年第9期22卷 1025-1028页

作者： Zheng Kai Si Qing Zhang Min Zhao Xue Yuan Yuan Zhu Liang Ming Qiao Rong sheng Yan gang liu School of Chemistry and Chemical Engineering Shanghai Jiaotong University Shanghai 200240 China

Three novel bis-chalcone derivatives with different alkyldioxy spacers were synthesized and dispersed into polymethyl methacrylate （PMMA） chloroform solution with 6-nitro-1＇-ethyl-3＇,3＇-dimethylspiro-2H-1-benzopyran-2,U-indoline （ESP） to prepare photochromic PMMA films in a facile way. After irradiation with 365 nm UV light, the photocrosslinking reaction between chalcone units was proved to retard the decolorization of merocyanine form of the photochromic spiropyran effectively, as results of the steric hindrance produced by photocycloaddition of chalcone groups. It has been found that the bis-chalcone molecule with the shortest spacer has the most effective stabilizing effect on retardation of decoloration of spiropyran. reserved.

关键词： Photochromism Chalcone Spiropyran Photocycloaddition Slabilization effect

NUMERICAL MODELLING OF FREE-SURFACE FLOWS WITH BOTTOM AND SURFACE-LAYER PRESSURE TREATMENT

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Journal of Hydrodynamics 2009年第3期21卷 352-359页

作者： WANG Kun State Key Laboratory of Coastal and Offshore Engineering Dalian University of Technology Dalian 116024 China

A new non-hydrostatic numerical model with the three-dimensional Navier-Stokes equations on structured grids was constructed and discussed. The algorithm is based upon a staggered finite difference Crank-Nicholson scheme on a Cartesian grid. The eddy viscosity coefficient was calculated by the efficient k-ε turbulence model. A new surface-layer non-hydrostatic treatment and a local cell bottom treatment were introduced so that the three-dimensional model is fully non-hydrostatic and is free of any hydrostatic assumption. The developed model is second-order accuracy in both time and space when semi-implicit coefficient is set to 0.5. The validity of the present solution algorithm was demonstrated from its application to the three-dimension channel flow and the wave propagation over a submerged bar problems.

关键词： Navier-Stokes equations implicit k -ε turbulence model surface-layer non-hydrostatic treatment local cell bottom treatment

小切口圈垫式劈核白内障囊外摘除人工晶状体植入术的手术效果

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国际眼科杂志 2014年第4期14卷 677-679页

作者：彭小宁李盈龙刘钢生中国安徽省合肥市第一人民医院眼科 230001

目的：探讨小切口圈垫式劈核白内障囊外摘除人工晶状体植入术的手术效果。方法：对75例80眼白内障应用圈垫器和劈核刀进行劈核取出，植入后房型人工晶状体，观察术后视力、散光度、及术中、术后并发症。随访3～12 mo。结果：术后第1d... 详细信息

目的：探讨小切口圈垫式劈核白内障囊外摘除人工晶状体植入术的手术效果。方法：对75例80眼白内障应用圈垫器和劈核刀进行劈核取出，植入后房型人工晶状体，观察术后视力、散光度、及术中、术后并发症。随访3～12 mo。结果：术后第1d视力0．3～0．5者37眼，≥0．6者21眼，术后1mo 0．3～0．5者43眼，≥0．6者26眼。角膜散光在术后1wk为1．75±0．55D，与术前0．85±0．29D相比有显著差异（P＜0．05），术后1mo 0．92±0．48D和3mo 0．89±0.35D与术前比较无显著差异（P＞0．05）。4眼术中后囊破裂，1眼人工晶状体植入囊袋内，3眼人工晶状体植入睫状沟内。术后角膜内皮波纹状水肿2眼，术后3d左右消退；斑块状水肿2眼，术后2 wk 内消退。一过性高眼压2眼。结论：小切口圈垫式劈核白内障囊外摘除人工晶状体植入术治疗白内障术后效果好，手术成本低，操作简便，并发症小，值得临床推广应用。

关键词：小切口白内障囊外摘除术劈核

微小巩膜隧道瓣的白内障超声乳化联合小梁切除术(英文)

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国际眼科杂志 2011年第8期11卷 1311-1313页

作者：赵军民刘钢生刘杰杨国科合肥市第一人民医院眼科中国安徽省合肥市230061

目的:探讨微小巩膜隧道瓣白内障超声乳化联合小梁切除术的可行性。方法:对青光眼合并白内障49例52眼行2.8mm巩膜隧道瓣切口的白内障超声乳化联合巩膜隧道内的小梁切除术。结果:术后52眼眼压控制满意,术后1wk;1,3,6mo眼压平均值分别为:(8... 详细信息

目的:探讨微小巩膜隧道瓣白内障超声乳化联合小梁切除术的可行性。方法:对青光眼合并白内障49例52眼行2.8mm巩膜隧道瓣切口的白内障超声乳化联合巩膜隧道内的小梁切除术。结果:术后52眼眼压控制满意,术后1wk;1,3,6mo眼压平均值分别为:(8.24±3.61)mmHg,(13.22±4.12)mmHg,(12.11±4.23)mmHg,(12.59±4.26)mmHg。取本组术后半年平均眼压与行5.5mm巩膜隧道瓣白内障超声乳化、植入一片式硬性PMMA人工晶状体并联合小梁切除术的56眼术后半年平均眼压(13.27±3.84)mmHg进行对比分析无统计学意义(t=1.7536,P=0.08239)。26眼手术前后随访1a,视网膜神经纤维层厚度变化无统计学意义(P>0.05)。术后裸眼视力达到或超过0.8者占62%。结论:该术式切口小,无需做巩膜瓣,切口无需缝合,并避免滤过过畅,减少术后散光发生,迅速恢复术后视力,术后反应轻,减少术后并发症。

关键词：巩膜隧道瓣/微小超声乳化小梁切除

Small extracellular vesicles derived from cerebral endothelial cells with elevated microRNA 27a promote ischemic stroke recovery

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Neural Regeneration Research 2025年第1期20卷 224-233页

作者： Yi Zhang Zhongwu liu Michael Chopp Michael Millman Yanfeng Li Pasquale Cepparulo Amy Kemper Chao Li Li Zhang Zheng gang Zhang Department of Neurology Henry Ford HospitalDetroitMIUSA Department of Physics Oakland UniversityRochesterMIUSA Department of Pathology Henry Ford HospitalDetroitMIUSA Division of Pharmacology Department of NeuroscienceReproductive and Dentistry SciencesSchool of MedicineUniversity of Naples“Federico Ⅱ”NaplesItaly

Axonal remodeling is a critical aspect of ischemic brain repair processes and contributes to spontaneous functional *** previous in vitro study demonstrated that exosomes/small extracellular vesicles(sEVs)isolated from cerebral endothelial cells(CEC-sEVs)of ischemic brain promote axonal growth of embryonic cortical neurons and that microRNA 27a(miR-27a)is an elevated miRNA in ischemic *** the present study,we investigated whether normal CEC-sEVs engineered to enrich their levels of miR-27a(27a-sEVs)further enhance axonal growth and improve neurological outcomes after ischemic stroke when compared with treatment with non-engineered CEC-sEVs.27a-sEVs were isolated from the conditioned medium of healthy mouse CECs transfected with a lentiviral miR-27a expression *** EVs isolated from CECs transfected with a scramble vector(Scra-sEVs)were used as a *** male mice were subjected to permanent middle cerebral artery occlusion and then were randomly treated with 27a-sEVs or *** array of behavior assays was used to measure neurological *** with treatment of ischemic stroke with Scra-sEVs,treatment with 27a-sEVs significantly augmented axons and spines in the peri-infarct zone and in the corticospinal tract of the spinal grey matter of the denervated side,and significantly improved neurological *** vitro studies demonstrated that CEC-sEVs carrying reduced miR-27a abolished 27a-sEV-augmented axonal *** analysis revealed that 27a-sEVs systemically administered preferentially localized to the pre-synaptic active zone,while quantitative reverse transcription-polymerase chain reaction and Western Blot analysis showed elevated miR-27a,and reduced axonal inhibitory proteins Semaphorin 6A and Ras Homolog Family Member A in the peri-infarct *** of the Clathrin-dependent endocytosis pathway substantially reduced neuronal internalization of *** data provide evidence that 27a-sEVs have

关键词： axonal remodeling cerebral endothelial cells exosomes miR-27a mitochondria Semaphorin 6A small extracellular vesicles stroke

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潜江凹陷盐湖沉积储集层分布预测

石油勘探与开发 2004年第2期31卷 74-76,80页

作者：柳保军陈开远史忠生刘刚吕金博中国地质大学(武汉) 中国地质大学(北京) 中国石化河南油田勘探开发研究院

江汉盆地潜江凹陷潜江组为典型的盐湖沉积 ,盐岩主要发育在湖盆基准面的上升早期和下降中晚期 ,储集层发育受湖平面升降旋回、古地貌和物源供给的控制 ,储集层类型有低位体系域砂体、盐湖密度流砂体、湖滨浅滩砂体以及盐间非砂岩等。建... 详细信息

江汉盆地潜江凹陷潜江组为典型的盐湖沉积 ,盐岩主要发育在湖盆基准面的上升早期和下降中晚期 ,储集层发育受湖平面升降旋回、古地貌和物源供给的控制 ,储集层类型有低位体系域砂体、盐湖密度流砂体、湖滨浅滩砂体以及盐间非砂岩等。建立潜江组的高分辨率等时地层格架 ,将高精度测井层序对比与地震剖面横向追踪相结合 ,预测潜江凹陷潜北断裂带的高位及低位体系域三角洲和扇三角洲砂体较发育 ,蚌湖洼陷东斜坡和西斜坡发育扇三角洲砂体 ,凹陷坡折带盐湖密度流砂体等分布较为广泛 ,具有形成隐蔽油气藏的有利条件。图 5参

关键词：潜江凹陷潜江组盐湖沉积储集层类型分布预测

液液两相体系中合成三氯蔗糖-6-乙酸酯的研究

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广东化工 2018年第14期45卷 288-288,285页

作者：盛毓刘钢石兴兴丰明浙江新和成股份有限公司浙江绍兴312000

以蔗糖-6-乙酸酯为起始原料,通过Vilsmeier试剂法氯化蔗糖-6-乙酸酯制备了三氯蔗糖-6-乙酸酯。氯化反应当中考察了物料的投料方式,实验研究表明,在液液两相体系制备三氯蔗糖-6-乙酸酯,反应收率高且能够有效减少DMF的分解,所获得三氯蔗糖... 详细信息

以蔗糖-6-乙酸酯为起始原料,通过Vilsmeier试剂法氯化蔗糖-6-乙酸酯制备了三氯蔗糖-6-乙酸酯。氯化反应当中考察了物料的投料方式,实验研究表明,在液液两相体系制备三氯蔗糖-6-乙酸酯,反应收率高且能够有效减少DMF的分解,所获得三氯蔗糖-6-乙酸酯的收率达到72%,该方法的收率具有良好稳定性,有利于工业化的研究。

关键词：三氯蔗糖-6-乙酸酯 Vilsmeier试剂液液两相