检索结果-南通市图书馆

High-intensity spatial-mode steerable frequency up-converter toward on-chip integration

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Opto-Electronic Science 2024年第4期3卷 12-20页

作者： haizhou huang Huaixi Chen Huagang Liu Zhi Zhang Xinkai Feng Jiaying Chen Hongchun Wu Jing Deng Wanguo Liang Wenxiong Lin Key Laboratory of Optoelectronic Materials Chemistry and Physics Fujian Institute of Research on the Structure of MatterChinese Academy of ScienceFuzhou 350002China Key Laboratory of Opto-Electronic Science and Technology for Medicine of Ministry of Education Fujian Provincial Key Laboratory of Photonics TechnologyCollege of Photonic and Electronic EngineeringFujian Normal UniversityFuzhou 350117China Fujian Science&Technology Innovation Laboratory for Optoelectronic Information of China Fuzhou 350108China College of Digital Economy Fujian Agriculture and Forestry UniversityFuzhou 350002China University of Chinese Academy of Sciences Beijing 100049China.

Integrated photonic devices are essential for on-chip optical communication,optical-electronic systems,and quantum information sciences.To develop a high-fidelity interface between photonics in various frequency domains without disturbing their quantum properties,nonlinear frequency conversion,typically steered with the quadratic(χ2)process,should be considered.Furthermore,another degree of freedom in steering the spatial modes during theχ2 process,with unprecedent mode intensity is proposed here by modulating the lithium niobate(LN)waveguide-based inter-mode quasi-phasematching conditions with both temperature and wavelength parameters.Under high incident light intensities(25 and 27.8 dBm for the pump and the signal lights,respectively),mode conversion at the sum-frequency wavelength with sufficient high output power(−7–8 dBm)among the TM01,TM10,and TM00 modes is realized automatically with characterized broad temperature(ΔT≥8°C)and wavelength windows(Δλ≥1 nm),avoiding the previous efforts in carefully preparing the signal or pump modes.The results prove that high-intensity spatial modes can be prepared at arbitrary transparent wavelength of theχ2 media toward on-chip integration,which facilitates the development of chip-based communication and quantum information systems because spatial correlations can be applied to generate hyperentangled states and provide additional robustness in quantum error correction with the extended Hilbert space.

关键词： integrated photonics LN waveguide sum-frequency generation spatial-mode steering on-chip integration

Practical N-alkylation via homogeneous iridium-catalyzed direct reductive amination

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Science China Chemistry 2023年第2期66卷 518-525页

作者： Jing Wang Wenji Wang Xiongyu Yang Jingwen Liu haizhou huang Mingxin Chang College of Chemistry&Pharmacy Northwest A&F UniversityYangling12100China College of Plant Protection Shaanxi Research Center of Biopesticide Engineering&TechnologyNorthwest A&F UniversityYangling712100China

Direct reductive amination(DRA)is one of the most efficient methods for amine synthesis.Herein we report a practical homogeneous DRA procedure utilizing iridium catalysis.Applying simple,readily available and inexpensive PPh_(3)and alike ligands along with iridium at a low loading,aldehydes and ketones reductively coupled with primary and secondary amines to efficiently form structurally and functionally diverse amine products,including a set of drugs and compounds from late-stage manipulation.The reaction conditions were exceptionally mild and additive-free,in which oxygen,moisture,polar protic groups and multiple other functional groups were tolerated.For targeted products,this methodology is especially versatile for offering multiple possible synthetic options.The 10 gram-scale synthesis further demonstrated the potential and promise of this procedure in practical amine synthesis.DFT studies reveal an“outer-sphere”H-addition pathway,in whichπ-πinteractions and H-bonding play important roles.

关键词： homogeneous catalysis hydrogenation Iridium catalysis N-alkylation reductive amination

Passively Q-switched Tm/Ho composite laser

在线全文

学校读者我要写书评

暂无评论

Opto-Electronic Advances 2020年第4期3卷 14-19页

作者： haizhou huang Jinhui Li Jing Deng Yan Ge Huagang Liu Jianhong huang Wen Weng Wenxiong Lin Key Laboratory of Optoelectronic Materials Chemistry and Physics Fujian Institute of Research on the Structure of MatterChinese Academy of SciencesFuzhou 350002China University of Chinese Academy of Sciences Beijing 100049China Department of Electrical and Computer Engineering National University of Singapore4 Engineering Drive 3117576Singapore.

We explored Q-switching mechanism for the newly proposed Tm/Ho composite laser via developing a hybrid resonator for separating the intra-cavity Tm laser modulated by the saturable absorber(SA).With a Cr:ZnSe SA,successful passively Q-switching process with the maximum average output power of 474 mW and the shortest pulse width of 145 ns were obtained at the pulse repetition frequency of 7.14 kHz,where dual wavelength oscillation in both 2090 nm and 2097 nm was observed.This work provides an effective way for a direct laser diode(LD)pumped Q-switched Ho laser,which is compact and accessible.Furthermore,the current SA could be replaced by the 2D materials with broadband saturable absorption such as topological insulators or transition-metal dichalcogenides for seeking novel PQS lasers.

关键词： Ho laser Tm laser Tm/Ho composite passively Q-switched Cr:ZnSe

Electrode materials for brain-machine interface:A review

在线全文

学校读者我要写书评

暂无评论

InfoMat 2021年第11期3卷 1174-1194页

作者： Nan Wu Shu Wan Shi Su haizhou huang Guangbin Dou Litao Sun SEU-FEI Nano-Pico Center Key Laboratory of MEMS of Ministry of EducationCollaborative Innovation Center for Micro/Nano FabricationDevice and SystemSoutheast UniversityNanjingChina Key Laboratory of Optoelectronic Technology and Systems Ministry of EducationKey Disciplines Laboratory of Novel Micro-Nano Devices and System TechnologySchool of Optoelectronics EngineeringChongqing UniversityChongqingChina Center for Advanced Materials and Manufacture Joint Research Institute of Southeast University and Monash UniversitySuzhouChina Center for Advanced Carbon Materials Southeast University and Jiangnan Graphene Research InstituteChangzhouChina

Brain-machine interface(BMI)is a device that translates neuronal information into commands,which is capable of controlling external software or hardware,such as a computer or robotic arm.In consequence,the electrodes with desirable electrical and mechanical properties for direct interacting between neural tissues and machines serves as the crucial and critical part of BMI technology.Nowadays,the development of material science provides many advanced electrodes for neural stimulating and recording.Particularly,the widespread applications of nanotechnologies have innovatively introduced biocompatible electrode that can have similar characteristics with neural tissue.This paper reviews the existing problems and discusses the latest development of electrode materials for BMI,including conducting polymers,silicon,carbon nanowires,graphene,and hybrid organic-inorganic nanomaterials.In addition,we will inspect at the technical and scientific challenges in the development of neural electrode for a broad application of BMI with focus on the biocompatibility,mechanical mismatch,and electrical performance of electrode materials.

关键词： biocompatibility brain-machine interface electrode materials implantable device

Catch organism assemblages along artificial reefs area and adjacent waters in haizhou Bay

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Acta Oceanologica Sinica 2024年第2期43卷 34-42页

作者： Shike Gao Bin Xie Chengyu huang Xiao Zhang Shuo Zhang Wenwen Yu College of Marine Living Resource Sciences and Management Shanghai Ocean UniversityShanghai 201306China Jiangsu Research Institute of Marine Fisheries Nantong 226007China Third Institute of Oceanography Ministry of Natural ResourcesXiamen361005China Joint Laboratory for Monitoring and Conservation of Aquatic Living Resources In the Yangtze Estuary Shanghai 200000China

To better understand the community patterns mediated by connectivity in artificial reefs of coastal areas, it is necessary to understand the distribution and coexistence of organisms with artificial reefs area and adjacent waters. This study was conducted to examine main catches assemblages collected by trawls in haizhou Bay,which included five habitats: the artificial reef area(AR), aquaculture area(AA), natural area(NA), estuary area(EA) and comprehensive effect area(CEA). The result shows that the total abundances of species in the five habitats were highly different(univariate PERMANOVA: P = 0.001, n = 24), but some species were also unique in their habitat(e.g. Scapharca subcrenata and Glossaulax didyma in AA). The body size distribution of specific species between habitats are different. For Collichthys lucidus, their body size in AR(14.63 cm ± 1.64 cm) and EA(14.3 cm ± 0.85 cm) is higher than that in NA(10.65 cm ± 1.64 cm), CEA(11.28 cm ± 1.85 cm) and AA(12.1 cm ±0.43 cm), which indicates the potential connection from AR to EA mediated by their adult population. We concluded that artificial reefs in AR can be considered key components that have the ability to support species assemblages in adjacent habitats. This study has implications for the conservation and monitoring of species assemblages in coastal areas in terms of that artificial reefs can be applied in different stages of habitat protection implementation and in different combinations of scenarios.

关键词： assemblage artificial reefs adjacent water haizhou Bay

Validation of spectrum method for improving efficiency of continuous-wave ＆ Q-switched Tm-doped yttrium aluminum garnet laser

在线全文

学校读者我要写书评

暂无评论

Science China(Physics,Mechanics & Astronomy) 2018年第3期61卷 77-80页

作者： haizhou huang Pan Gao HuaGang Liu Jian-Hong huang Juan Wang KaiMing Ruan Wen Weng Hui Zheng ZiXiong Lin ShuTao Dai Jing Deng WenXiong Lin Key Laboratory of Optoelectronic Materials Chemistry and Physics Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences Fuzhou 350002 China University of Chinese Academy of Sciences Beijing 100049 China

Tm^(3+)-doped 2-μm lasers benefit many applications such as atmospheric sensing,medical treatment,and spectroscopy[1-3].Therefore,in the past two decades,both continuous-wave(CW)and pulse operations have

关键词：钇铝石榴石激光波浪谱方法切换 Tm 医疗纤维

Ni_(0.09)Ti_(0.91)O_(2)纳米管负载铜的催化脱硝性能和机理

在线全文

学校读者我要写书评

暂无评论

稀有金属材料与工程 2024年第5期53卷 1417-1428页

作者：黄一萌马晓春张海洲张海涛任信源王慧宁黄太仲济南大学化学化工学院山东济南250022 山东第一医科大学附属省立医院山东济南250021

随着氮氧化物危害的日益加剧,脱硝催化剂的发展已成为对其进行治理的关键因素。本实验通过水热、煅烧两步法制备了Ni_(0.09)Ti_(0.91)O_(2)纳米管负载铜的脱硝催化剂,研究了该类催化剂的结构和脱硝性能。采用N2物理吸附、X射线衍射、扫... 详细信息

随着氮氧化物危害的日益加剧,脱硝催化剂的发展已成为对其进行治理的关键因素。本实验通过水热、煅烧两步法制备了Ni_(0.09)Ti_(0.91)O_(2)纳米管负载铜的脱硝催化剂,研究了该类催化剂的结构和脱硝性能。采用N2物理吸附、X射线衍射、扫描电子电镜、透射电镜等方法确定了催化剂的结构,Ni_(0.09)Ti_(0.91)O_(2)纳米管为锐钛矿结构,铜原子团簇分布在纳米管表面,氮气吸脱附实验测定Ni_(0.09)Ti_(0.91)O_(2)负载铜前后的比表面积分别为263.51和216.54 m2·g^(-1),纳米管表面铜分散均匀,提高了其催化脱硝性能,Ni_(0.09)Ti_(0.91)O_(2)纳米管负载7%(质量分数)铜催化剂的脱硝效率接近100%,而且具有良好的抗中毒性能。原位漫反射红外光谱测试表明其NH3-SCR过程遵循L-H机制,作为对比同时研究了Ni_(0.09)Ti_(0.91)O_(2)纳米颗粒负载铜的脱硝性能。Ni_(0.09)Ti_(0.91)O_(2)纳米管负载7%铜催化剂具有最好的脱硝和抗中毒性能,显示出良好的应用前景。

关键词：镍掺杂二氧化钛脱硝催化剂金属负载氨选择性催化还原

乌江下游梯级水库浮游植物群落结构特征与多样性分析

在线全文

学校读者我要写书评

暂无评论

水产学杂志 2024年第1期37卷 75-80页

作者：郑鑫胡菊香黄海洲吕克强李嗣新重庆大唐国际武隆水电开发有限公司重庆404100 水利部中国科学院水工程生态研究所水利部水工程生态效应与生态修复重点实验室湖北武汉430079

2021年9月,结合水文情势、生物分布特征及生境等实际情况,设置8个监测断面,调查乌江下游彭水和银盘2个梯级水电站影响区域内的浮游植物落结构特征及多样性,探讨乌江下游梯级电站对浮游植物群落结构的影响。本次调查采集到浮游植物6门37... 详细信息

2021年9月,结合水文情势、生物分布特征及生境等实际情况,设置8个监测断面,调查乌江下游彭水和银盘2个梯级水电站影响区域内的浮游植物落结构特征及多样性,探讨乌江下游梯级电站对浮游植物群落结构的影响。本次调查采集到浮游植物6门37属51种,硅藻门占浮游植物总种类数的60.8%,浮游植物平均密度为4.1×106cells/L,平均生物量为0.792 mg/L。Shannon-Wiener多样性指数范围为1.63~2.84,Margalef丰富度指数范围为3.08~5.41。乌江下游银盘和彭水电站影响区域主要以硅藻门为主,浮游植物群落空间分布差异较大,库尾及以上急流区域的浮游植物多样性指数比库区缓流段高。Shannon-Wiener多样性指数和Margalef丰富度指数分析表明,蓄水后适应流水环境的浮游植物种类数变少。与蓄水前对比发现,蓄水后浮游植物种类数和生物多样性均有所降低,梯级电站建设在一定程度上降低了库区浮游植物的多样性。

关键词：浮游植物群落结构多样性水库乌江

不同壮数温针灸联合痹痛汤方加减治疗膝关节骨性关节炎疗效观察

在线全文

学校读者我要写书评

暂无评论

中华中医药学刊 2024年第1期42卷 213-217页

作者：应海芬黄芳王力施晓慧应海舟梁文清陈华德舟山市中医院浙江舟山316000 绍兴市人民医院浙江绍兴312099 浙江中医药大学附属第三医院浙江杭州310016

目的探究不同壮数温针灸联合痹痛汤方加减治疗膝关节骨性关节炎(knee osteoarthritis,KOA)疗效观察。方法选取医院2018年12月—2020年12月收治的KOA患者150例,随机分为3组各50例,均在常规西医及康复基础上予以温针灸联合痹痛汤方加减治... 详细信息

目的探究不同壮数温针灸联合痹痛汤方加减治疗膝关节骨性关节炎(knee osteoarthritis,KOA)疗效观察。方法选取医院2018年12月—2020年12月收治的KOA患者150例,随机分为3组各50例,均在常规西医及康复基础上予以温针灸联合痹痛汤方加减治疗,1壮组给予1壮温针灸、2壮组给予2壮温针灸、3壮组给予3壮温针灸。3组均治疗1个月后评估临床疗效,分析对比治疗前后3组患者关节功能[西安大略和麦克马斯特大学骨关节炎指数(Western Ontario and McMaster Universities,WOMAC)]、软骨修复因子[转化生长因子-β(transforming growth factor-β,TGF-β)、胰岛素样生长因子-1(insulin-like growth factor-1,IGF-1)]、血清炎性指标[肿瘤坏死因子-α(tumor necrosis factor-alpha,TNF-α)、C反应蛋白(C-reactive protein,CRP)、环氧合酶(cyclooxygenase-2,COX-2)]、血液流变学指标[全血高切黏度(high-shear blood viscosity,HBV)、全血低切黏度(low-shear blood viscosity,LBV)、红细胞压积(hematocrit,HCT)]及治疗过程中不良反应发生情况。结果治疗1个月后,3壮组有效率为94.00%(47/50),2壮组有效率为92.00%(46/50),均明显高于1壮组(74.00%,37/50),组间比较差异有统计学意义(P0.05);治疗1个月后,3组WOMAC量表各维度评分、CRP、COX-2、HBV、LBV、HCT水平较治疗前均降低(P0.05);治疗1个月后,3组TGF-β水平较治疗前均升高(P0.05),2壮组及3壮组IGF-1水平较治疗前均升高(P0.05);治疗1个月后,3组TNF-α、CRP、COX-2水平较治疗前均降低(P0.05)。结论在痹痛汤方加减治疗的基础上联合2壮温针灸治疗有利于患者症状体征改善,提高临床疗效,作用机制可能与降低炎症反应,促进软骨修复及血液循环有关。

关键词：不同壮数温针灸痹痛汤膝关节骨性关节炎疗效