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Photothermal properties of Cu@polycarbonate composites with strong localized surface plasmon resonances

Nano Research 2024年第9期17卷 8513-8520页

作者： fengyi wang Jiangling He Junshan Hu Zhihui Chen Yumeng Shi Qing-Hua Xu SZU-NUS Collaborative Innovation Center for Optoelectronic Science and Technology International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology of Ministry of EducationInstitute of Microscale OptoelectronicsShenzhen UniversityShenzhen 518060China Department of Chemistry National University of Singapore3 Science Drive 3Singapore 117543Singapore College of Materials Science and Engineering Sichuan UniversityChengdu 610065China

Copper is relatively low cost and highly abundant compared with the well-studied noble metals such as gold and ***,the poor plasmonic and high susceptibility towards oxidation limit the study of its optical properties and applications as ***,copper nanoparticles@polycarbonate(Cu@PC)composites were prepared by using a facile one-step solvothermal *** Cu@PC composites have strong localized surface plasmon resonances(LSPR)due to that the PC shell can induce the particles to form many-particles system with different particle numbers,which not only lead to overlap and hybridize of the LSPR modes,but also shift the LSPR away from the interband transitions,and the PC layer also prevents the oxidation of Cu *** photothermal conversion efficiency of Cu@PC composites reaches 41.1%under 808 nm continuous wave(CW)laser irradiation which is higher than previously reported Cu nanomaterials that have been ***,the composites also have high photothermal ***,interfacial evaporator is prepared by assembling the Cu@PC composites on scouring sponge as light absorption layer which has>92.8%absorption in entire solar spectrum *** seawater evaporation rate is 3.177 kg·m^(-2)·h^(-1)with a E_(evaporator)/E_(water)of *** high evaporation rate interfacial evaporator with low cost,simple,and scalable approach shows great application value in the field of photothermal evaporation.

关键词： Cu nanoparticles localized surface plasmon resonances(LSPR) photothermal interfacial evaporation

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Facile Surface Engineering of NiCo_(2)O_(4) to Boost Propane Oxidation Activity

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China Petroleum Processing & Petrochemical Technology 2024年第1期26卷 19-26页

作者： Yang Jialei wang fengyi Lei Yang Zhang Mingchao Sun Shiqiang Xu Wenfan Ke Jiaxiang Wu Haojie Li Xingyun Qi Jian Institute of Materials for Energy and Environment College of Materials Science and EngineeringQingdao UniversityQingdao 266071China School of Chemistry and Chemical Engineering Hubei Key Laboratory of Coal Conversion and New Carbon MaterialsWuhan University of Science and TechnologyWuhan 430081China Department of Burn and Plastic Surgery Qingdao Municipal Hospital Affiliated to Rehabilitation UniversityQingdao 266000China State Key Laboratory of Biochemical Engineering Institute of Process EngineeringChinese Academy of SciencesBeijing 100190China

Spinel oxide(NiCo_(2)O_(4))has demonstrated great potential to replace noble metal catalysts for the oxidation reaction of air *** further boost the oxidation ability of such catalysts,in this study,a facile surface-engineering strategy wherein NiCo_(2)O_(4) was treated with different alkali solvents was *** obtained catalyst(NiCo_(2)O_(4)-OH)showed a higher surface alkalinity and more surface defects compared to the pristine spinel oxide,including enhanced structural distortion as well as promoted oxygen *** propane oxidation ability of NiCo_(2)O_(4)-OH was greatly enhanced,with a propane conversion rate that was approximately 6.4 times higher than that of pristine NiCo_(2)O_(4) at a reaction temperature 193℃.This work sets a valuable paradigm for the surface modulation of spinel oxide via alkali treatment to ensure a high-performance oxidation catalyst.

关键词： NiCo_(2)O_(4) surface defects alkali treatment propane oxidation

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脑卒中后肌痉挛评估方法概述

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中国循证医学杂志 2024年第6期24卷 739-744页

作者：周吴王凤怡陈佳佳王朴刘沙鑫四川大学华西医院超声医学科成都610041 四川大学华西医院康复医学科成都610041 中山大学附属第七医院康复医学科广州510080

痉挛是脑卒中的常见并发症,具有高发病率、高致残率的特点。痉挛持续损害患者的运动功能,可出现肌肉缩短、关节畸形等症状,严重影响患者身心健康。目前系统治疗是控制痉挛的关键环节。然而,系统治疗以正确评估为前提。评估痉挛的工具分... 详细信息

痉挛是脑卒中的常见并发症,具有高发病率、高致残率的特点。痉挛持续损害患者的运动功能,可出现肌肉缩短、关节畸形等症状,严重影响患者身心健康。目前系统治疗是控制痉挛的关键环节。然而,系统治疗以正确评估为前提。评估痉挛的工具分为主观和客观两大类,主观评估工具主要包括一些量表,由治疗师主观评定和判断。客观方法主要包括电生理测试仪、超声波测量技术、机器人、三维运动分析系统、等速肌力测试仪等。本文通过文献回顾的方式,对脑卒中后痉挛评估的方法进行分析和总结,综述各种评估方法的优缺点和实用性,并对未来研究方向提出展望。

关键词：脑卒中肌痉挛评估方法综述

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Cushing＇s syndrome during pregnancy caused by adrenal cortical adenoma： a case report and literature review

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Frontiers of Medicine 2015年第3期9卷 380-383页

作者： Wei wang fengyi Yuan Dan Xu Department of Endocrinology and Metabolism Shenzhen People 's Hospital Shenzhen 518020 China

Cushing＇s syndrome （CS） during pregnancy is a rare condition with Significant maternal and fetal complications. A case of CS during the third trimester of pregnancy secondary to adrenocortical adenoma was reported. Literature review revealed the disadvantages of different treatments in this period. Besides the conservative treatment, surgery is recommended for CS during the third trimester of pregnancy secondary to adrenal adenoma, if an experienced surgeon is available.

关键词： Cushing's syndrome pregnancy adrenocortical adenoma

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导航信道特性分类抽取与分段拟合方法

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导航定位学报 2024年第4期12卷 106-113页

作者：李蓬蓬牟卫华王峰毅李宗楠吕志成国防科技大学电子科学学院长沙410000

为满足不同测试场景对导航环境信道特性构建的差异化需求,提出一种基于自定义信道特性分类抽取与分段拟合的高精度信道模拟器设计方法。在最小群时延变化率约束下,对外部导入的自定义信道特性进行采样点分类抽取,并利用傅里叶展开实现... 详细信息

为满足不同测试场景对导航环境信道特性构建的差异化需求,提出一种基于自定义信道特性分类抽取与分段拟合的高精度信道模拟器设计方法。在最小群时延变化率约束下,对外部导入的自定义信道特性进行采样点分类抽取,并利用傅里叶展开实现分段精确拟合,从而获得相应的信道特性模型。实验结果表明:能够高精度再现外部导入的真实或用户自定义信道群时延特性,拟合误差小于0.3 ns,有效扩展了可支持的信道类型范畴,提高了复杂环境下逼真测试场景的构建能力。

关键词：自定义信道特性模拟分类抽取分段拟合场景构建

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Bionic boron/silicon-modified phenolic resin system with multifunctional groups:synthesis,thermal properties and ablation mechanism

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Biosurface and Biotribology 2018年第3期4卷 85-93页

作者： fengyi wang Zhixiong Huang Zhiguang Guo School of Material Science and Engineering Wuhan University of TechnologyLuoshi Road No.122430070 WuhanPeople's Republic of China Hubei Colla borative Innovation Centre for Advanced Organic Chemical Materials and Ministry of Education Key Laboratory for the Green Preparation and Application of Functional Materials Hubei UniversityWuhan 430062People's Republic of China State Key Laboratory of Solid Lubrication Lanzhou Institute of Chemical PhysicsChinese Academy of SciencesLanzhou 730000People's Republic of China

A kind of silicon-and-boron-modified phenolic-formaldehyde resin(SBPF)with excellent thermal stability was fabricated via a simple two-step method and used for the matrix of ablation *** structure and thermal stability of the modified phenolic-formaldehyde resins(PFs)were *** results showed that boron and silicon e lements have been incorporated into SBPF in the form of a chemical ***,the cured products showed an increase in graphite structure and a decrease in disordered structure due to the incorporation of boron and *** with the ordinary phenolic resin,the initial thermal degradation temperature and charring yield at 800℃ of SBPF increased by 73℃ and 15 wt%,***,the modified PFs,nano-Al_(2)O_(3) powders,glass powders and vitreous silica fibres were used to obtain a novel cer amizable phenolic mou lding com *** morphology,chemical composition and ablative characteristics of the composites were *** results showed that a compact and homogeneous SiO_(2)-Al_(2)O_(3) layer formed on the ablated surface and protected the carbonised matrix and fibres from further *** with the ordinary PF composites,the SBPF composites showed a highly decreased linear/mass ablation rates,indicating the synergistic effect of boron and silicon modification on the enhanced ablation property.

关键词： composites boron phenolic

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Different properties of GaN-based LED grown on Si(111) and transferred onto new substrate

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Science China(Technological Sciences) 2006年第3期49卷 313-321页

作者： XIONG Chuanbing JIANG fengyi FANG Wenqing wang Li LIU Hechu MO Chunnan Nanchang University Education Ministry Engineering Research Center for Luminescence Materials and Devices Nanchang 330047 China Nanchang University Education Ministry Engineering Research Center for Luminescence Materials and Devices Nanchang 330047 China Nanchang University Education Ministry Engineering Research Center for Luminescence Materials and Devices Nanchang 330047 China Nanchang University Education Ministry Engineering Research Center for Luminescence Materials and Devices Nanchang 330047 China Nanchang University Education Ministry Engineering Research Center for Luminescence Materials and Devices Nanchang 330047 China Nanchang University Education Ministry Engineering Research Center for Luminescence Materials and Devices Nanchang 330047 China

InGaN MQW LEDs, grown by metal-organic chemical vapor deposition (MOCVD) on Si(111) substrates, were successfully bonded and transferred onto new Si substrate. After chemical etching Si(111) substrate and inductively coupled plasma (ICP) etching the transferred LED film to Si-doped layer, a vertical structure GaN blue LEDs were then fabricated. The characteristics of the lateral structure LED (grown on Si) and the vertical structure LED (bonded on Si) were investigated. It shows the performance of ver- tical structure LEDs had obviously been improved compared to the lateral structure LEDs and the tensile stress in GaN layer of vertical structure LEDs is smaller than that in lateral structure LEDs.

关键词： GaN, LEDs, Si, wafer bonding, vertical structure.

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4-甲基磺酰基-2,3-二甲基溴苯液相色谱分析

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山东化工 2024年第13期53卷 165-169页

作者：王风义单芳王慧王浩哲李凯周国强山东亿盛实业股份有限公司山东济宁272211

采用反向高效液相色谱法,使用十八烷基硅烷键合硅胶为填充剂的WondaSil C_(18)Superb柱子和可变波长紫外检测器,以V(乙腈)∶V[磷酸水(pH值=3)溶液]=40∶60为流动相,在波长λ=255 nm条件下,建立了4-甲基磺酰基-2,3-二甲基溴苯液相色谱分... 详细信息

采用反向高效液相色谱法,使用十八烷基硅烷键合硅胶为填充剂的WondaSil C_(18)Superb柱子和可变波长紫外检测器,以V(乙腈)∶V[磷酸水(pH值=3)溶液]=40∶60为流动相,在波长λ=255 nm条件下,建立了4-甲基磺酰基-2,3-二甲基溴苯液相色谱分析方法,结果表明:该方法下的线性相关系数为0.9997,中间体在196.9~1378μg/mL范围内线性关系良好,标准偏差为0.12,变异系数为0.12%,回收率99.46%,可以满足4-甲基磺酰基-2,3-二甲基溴苯的定性和定量分析,结果呈现性好。

关键词： 4-甲基磺酰基-2,3-二甲基溴苯高效液相色谱法分析

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Ultra-low loss Rayleigh scattering enhancement via light recycling in fiber cladding

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Photonics Research 2024年第8期12卷 1813-1819页

作者： PENGTAO LUO fengyi CHEN RUOHUI wang XUEGUANG QIAO School of Physics Northwest UniversityXi’an 710127China Engineering Research Center of Optical Fiber Well Logging Technology for Oil and Gas Resources Universities of Shaanxi ProvinceXi’an 710127China

Rayleigh backscattering enhancement(RSE)of optical fibers is an effective means to improve the performance of distributed optical fiber *** laser direct-writing techniques have been used to modulate the fiber core for ***,in-core modulation loses more transmission light,thus limiting the sensing *** this work,a cladding-type RSE(cl-RSE)structure is proposed,where the femtosecond laser is focused in the fiber cladding and an array of scatterers is written parallel to the *** refractive-index modulation structure redistributes the light in the cladding,and the backward scattered light is recovered,which enhances the Rayleigh backscattered signal with almost no effect on the core light.

关键词： fiber scattering cladding

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运用德尔菲法构建老年综合康复评估体系专家共识

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华西医学 2024年第6期39卷 866-871页

作者：王维佳王凤怡霍林楠杨永红魏全四川大学华西医院康复医学中心/康复医学研究所成都610041 康复医学四川省重点实验室成都610041

目的制定专门针对老年人群的综合康复评估体系专家共识。方法计算机检索Medline、Embase、Cochrane Library、中国知网、维普数据库,检索时限均为2016年6月—2021年6月,提取老年康复评估的相关资料。在文献分析和研究组讨论的基础上,采... 详细信息

目的制定专门针对老年人群的综合康复评估体系专家共识。方法计算机检索Medline、Embase、Cochrane Library、中国知网、维普数据库,检索时限均为2016年6月—2021年6月,提取老年康复评估的相关资料。在文献分析和研究组讨论的基础上,采用德尔菲法,通过对20位老年康复领域的专家进行两轮专家函询,筛选核心评估内容,形成老年综合康复评估体系专家共识。结果共纳入158篇文献。共制定了运动心肺、感知觉、认知心理(含语言)、吞咽二便4大板块,41个条目的函询表。两轮专家函询的专家积极系数均为1.0,权威系数得分为(0.92±0.05)分,两轮函询条目变异系数分别为0.174±0.043和0.172±0.063,Kendall协调系数分别为0.587、0.601,P值均<0.05。最终形成包含16个项目的老年综合康复评估体系专家共识。结论通过德尔菲法构建的老年综合康复评估体系专家共识,包括运动、感知觉、认知、吞咽、言语、心肺、二便、精神心理等元素,专家认可度和一致性较高。

关键词：老年综合康复评估失能德尔菲法

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