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Nano Research 2021年第10期14卷 3386-3394页

作者： su you Li Zhang Qing Yang Hefei National Laboratory of Physical Sciences at the Microscale(HFNL) Department of ChemistryLaboratory of Nanomaterials for Energy Conversion(LNEC)University of Science and Technology of ChinaHefei 230026China

Broadband optoelectronic devices intrigue enormous interests on account of their promising potential in optical communications,sensors and environmental *** nanocrystals are promising candidates for the construction of next-generation photodetectors due to their fascinating intrinsic properties and solution-processed compatibility with varied ***,we report the fabrication of a broadband photodetector on the basis of high-quality solution-processed PbSe nanorods in rock-salt phase grown along unconventionally anisotropic growth direction ofzone *** rock-salt PbSe nanorods are synthesized in solution phase over the catalysis of Ag2Se with relatively high-temperature body-centered cubic phase via a solution-solid-solid growth regime using oleylamine and oleic acid as solvents and stabilizer surfactants,from which the PbSe nanorods with the unconventionally anisotropic growth direction are controllably grown in size and shape in the synthetic procedure typically with about 17 nm in diameter and 58 nm in length on ***,the PbSe nanorods-based photodetector exhibits a broadband response from 405 to 1,064 nm with a high responsivity of 0.78 A·W^(-1)and a fast response time of 17.5μ*** response time is much faster in comparison with most of the PbSe-based photodetectors with response time in millisecond level.

关键词： PbSe nanorod solution-solid-solid(SSS)growth regime superionic conductor catalysis unconventionally anisotropic growth direction near-infrared photodetector broadband photodetection

Ga/GaSb nanostructures:Solution-phase growth for highperformance infrared photodetection

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Nano Research 2023年第2期16卷 3304-3311页

作者： Huanran Li su you Yongqiang Yu Lin Ma Li Zhang Qing Yang Hefei National Research Center of Physical Sciences at the Microscale Department of ChemistryLaboratory of Nanomaterials for Energy Conversion(LNEC)University of Science and Technology of China(USTC)Hefei 230026China Micro Electromechanical System Research Center of Engineering and Technology of Anhui Province School of Electrical Science and Applied Physics Hefei University of Technology(HFUT)Hefei 230009China Nano Science and Technology Institute University of Science and Technology of China(USTC)Suzhou 215123China

Gallium antimonide(GaSb)-based nanostructures have been reported via various vapor-phase synthetic routes while there is not a report on the growth of GaSb nanostructures via a complete one-step solution-phase synthetic *** we report the design and synthesis of tadpole-like Ga/GaSb nanostructures by a one-step solution-phase synthetic route typically from the precursors of commercial triphenyl antimony(Sb(Ph)_(3))and trimethylaminogallium(Ga(NMe_(2))_(3))at 260°C in *** GaSb nanocrystals are grown based on a solution–liquid–solid(SLS)mechanism with zinc blende phase,and their size and shape can be controlled in the procedures via manipulating the reaction ***,the tadpole-like Ga/GaSb nanostructures can be applied for the fabrication of a GaSb/Si nanostructured heterojunction-like photodetector over silicon wafer,which demonstrates excellent photoresponse and detection performances from wavelength of 405 to 1,064 nm with high photoresponding ***,the photodetector exhibits a high responsivity of 18.9 A·W^(−1),a superior detectivity of 1.1×10^(13)Jones,and an ultrafast response speed of 44 *** present work provides a new strategy to group III–V antimonide-based semiconducting nanostructures that are capable for the fabrication of photodetector with broadband,high-detectivity,and high-speed photodetecting performances.

关键词： Ga/GaSb nanostructure metal-semiconductor heterojunction narrow bandgap semiconductor solution-liquid-solid(SLS)growth model GaSb/Si heterojunction photodetector hybrid nanostructured photodetector infrared photodetection

饲料中高浓度N-氨甲酰谷氨酸对罗非鱼脂肪代谢的影响

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水生生物学报 2025年第3期49卷 84-91页

作者：李薇黄坤明何焕榕江飚刘春黄燕华苏友禄仲恺农业工程学院动物科技学院健康养殖创新研究院广州510225

实验旨在研究饲料中添加高浓度N-氨甲酰谷氨酸(NCG)对罗非鱼(Oreochromis niloticus)鱼体脂肪含量、血清生化指标、肝脏脂肪沉积、脂肪代谢基因表达的影响。选取360尾平均体质量为(32.56±1.12)g的罗非鱼,随机分为3组,每组设置3个重复,... 详细信息

实验旨在研究饲料中添加高浓度N-氨甲酰谷氨酸(NCG)对罗非鱼(Oreochromis niloticus)鱼体脂肪含量、血清生化指标、肝脏脂肪沉积、脂肪代谢基因表达的影响。选取360尾平均体质量为(32.56±1.12)g的罗非鱼,随机分为3组,每组设置3个重复,每个重复40尾鱼。以不添加NCG组的基础饲料作为对照,另外设置添加高浓度2000和5000 mg/kg NCG的2种实验饲料作为实验组(NCGⅠ和NCGⅡ)。每天按体重4%定量投喂2次,共饲养8周。研究结果表明,高浓度NCG添加水平升高了罗非鱼的肝体指数,NCGⅡ组的肝体指数显著增加(P<0.05)。NCGⅠ和NCGⅡ组罗非鱼血清甘油三酯和胆固醇含量显著高于对照组(P<0.05),且NCGⅡ组罗非鱼血清的谷丙转氨酶和谷草转氨酶的活性显著升高(P<0.05)。高浓度NCG的添加显著提高罗非鱼内脏脂肪含量,并显著减少内脏蛋白质含量(P<0.05)。肝脏HE染色和油红O染色结果显示,高浓度NCG添加组的肝脏细胞出现了空泡化变性和明显的脂滴富集现象,且NCGⅡ组比NCGⅠ组的罗非鱼肝脏中的空泡更大,脂滴更大更集中。在进食高浓度NCG后,罗非鱼肝脏中脂肪氧化分解相关基因肉碱棕榈酰转移酶1基因(Carnitine palmitoyl transferase 1)、基因过氧化物酶体增殖物激活受体a基因(Peroxisome proliferator activated receptor alpha)和解偶联蛋白1基因(Uncoupling protein 1)的表达量显著降低(P<0.05)。综上,高浓度NCG的添加会造成罗非鱼的脂肪代谢异常,使得血脂升高,并诱导出严重脂肪肝症状和内脏脂肪蓄积,这可能是高浓度NCG降低了肝脏脂肪β-氧化相关基因的表达所导致。

关键词： N-氨甲酰谷氨酸脂肪含量血清生化指标脂肪沉积脂肪代谢罗非鱼

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基于UPLC-Q-Exactive Orbitrap-MS技术及网络药理学探讨化浊散结除痹方治疗痛风性关节炎的药效物质及潜在机制

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中国中药杂志 2025年第2期50卷 444-464页

作者：肖艳张婷张英杰黄彬陈鹏陈小华黄鸣清陈雪婷苏友新郭洁梅福建中医药大学康复医学院福建福州350122 福建中医药大学中医学院福建福州350122 中医骨伤及运动康复教育部重点实验室福建福州350122 福建中医药大学中西医结合学院中西医结合研究院福建福州350122 福建中医药大学第一临床医学院福建福州350004 福建中医药大学药学院福建福州350122

基于超高效液相色谱-四极杆静电场轨道阱质谱(UPLC-Q-Exactive Orbitrap-MS)技术及网络药理学探讨化浊散结除痹方治疗痛风性关节炎(gouty arthritis,GA)的药效物质及潜在机制。采用UPLC-Q-Exactive Orbitrap-MS技术鉴定化浊散结除痹方... 详细信息

基于超高效液相色谱-四极杆静电场轨道阱质谱(UPLC-Q-Exactive Orbitrap-MS)技术及网络药理学探讨化浊散结除痹方治疗痛风性关节炎(gouty arthritis,GA)的药效物质及潜在机制。采用UPLC-Q-Exactive Orbitrap-MS技术鉴定化浊散结除痹方药物成分,对其有效成分进行定性分析,共鉴定出化浊散结除痹方中184个有效成分;通过PharmMapper在线数据库筛选有效成分靶点897个,在OMIM、GeneCards、CTD等数据库获取GA相关的疾病靶点491个,进行韦恩分析后获得二者的交集靶点60个,通过Cytoscape平台构建“成分靶点-GA靶点”网络图,利用STRING数据库构建蛋白-蛋白互作网络,筛选出16个核心靶点,将核心靶点进行基因本体论(Gene Ontology,GO)与京都基因和基因组百科全书(Kyoto Encyclopedia of Genes and Genomes,KEGG)信号通路的富集分析,并构建“成分-靶点-通路”网络图,发现该方治疗GA的主要有效成分为酚类、黄酮类、生物碱类、萜类化合物,关键靶点有SRC、MMP3、MMP9、REN、ALB、IGF1R、PPARG、MAPK1、HPRT1、CASP1,通过GO分析发现其治疗GA主要涉及脂质反应、细菌反应、生物刺激的反应等生物过程,通过KEGG分析发现其治疗GA相关的通路有脂质和动脉粥样硬化、中性粒细胞胞外诱捕网、IL-17等。综上,该研究揭示了酚类、黄酮类、生物碱类、萜类化合物可能是化浊散结除痹方治疗GA的核心药效物质,其药效机制可能与SRC、MMP3、MMP9等靶点及脂质和动脉粥样硬化、中性粒细胞胞外诱捕网、IL-17等通路相关。

关键词：化浊散结除痹方痛风性关节炎超高效液相色谱-四极杆静电场轨道阱质谱网络药理学药效物质机制

Fabrication of oxygen-doped MoSe2 hierarchical nanosheets for highly sensitive and selective detection of trace trimethylamine at room temperature in air

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Nano Research 2020年第6期13卷 1704-1712页

作者： Nannan Hou Qianqian sun Jing Yang su you Yun Cheng Qian Xu Wei Li Shiqi Xing Li Zhang Junfa Zhu Qing Yang Hefei National Laboratory of Physical Sciences at the Microscale(HFNL) Department of ChemistryLaboratory of Nanomaterials for Energy Conversion(LNEC)University of Science and Technology of ChinaHefei230026China National Synchrotron Radiation Laboratory University of Science and Technology of ChinaHefei230029China

Nano Research volume 13,pages1704–1712(2020)Cite this article 191 Accesses Metrics details Abstract Intelligent gas sensors based on the layered transition metal dichalcogenides(TMDs)have attracted great interest in the field of gas sensing due to their multiple active sites,fast electron,mass transfer capability and large surface-to-volume ***,conventional TMDs-based sensors typically work at elevated temperature in inert atmosphere,which would largely limit the corresponding practical ***,novel oxygen-doped MoSe2 hierarchical nanostructures composed of ultrathin nanosheets with large specific surface area have been designed and generated typically at 200°C in air for fast and facile gas sensing of trimethylamine(TMA),*** from the gas-accessible hierarchical morphology and high surface area with abundant nanochannels,highly sensitive and selective detection of trace TMA has been achieved under ambient condition,and as detected the theoretical limit of detection(LOD)is 8 ppb,which is the lowest for TMA detection under ambient condition among the reported *** mechanism of oxygen doping on the improved gas-sensing performance has been investigated,revealing that the oxygen doping could greatly optimize the electronic structure,thus regulate the Fermi level of MoSe2 as well as the affinity between TMA molecule and sensor *** is expected that the oxygen doping strategy developed for the highly efficient gas sensors based on TMDs in present work may also be applicable to other types of gas-sensing semiconductors,which could open up a new direction for the rational design of high-performance gas sensors working under ambient condition.

关键词： oxygen-doped MoSe2 nanosheet ambient gas sensing trimethylamine detection highly selective trace detection limit

Generation of a Problem about Mean Value Theorem

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Journal of Mathematical Research and Exposition 2010年第1期30卷 186-190页

作者： Hua Ming su you Du HUANG Jie PAN Department of Mathematics Hefei University of Technology Anhui 230009 P. R. China

This paper presents a generalized form and its application to a problem, which was proposed by F.P. Callham.

关键词： mean value theorem difference quotient difference polynomial.

Astronomic background of global huge earthquakes at beginning of 21st century

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Applied Geophysics 2024年第3期21卷 423-432,616页

作者： Hu Hui su you-Jin Yunnan Observatory Chinese Academy of SciencesKunming 650011China Seismological Bureau of Yunnan Province Kunming 650224China

Since the beginning of the 21st century,major earthquakes have frequently occurred *** explore the impact of astronomical factors on earthquakes,in this study,the statistical analysis method of correlation is used to systematically analyze the effects of astronomical factors,such as solar activity,Earth’s rotation,lunar declination angle,celestial tidal force,and other phenomena on M≥8 global earthquakes at the beginning of the 21st *** regard to solar activity,this study focuses on the analysis of the 11-year and century cycles of solar *** causal relationship of the Earth’s rotation is not obvious in this work and previous works;in contrast,the valley period of the solar activity century cycle may be an important astronomical factor leading to the frequent occurrence of global earthquakes at the beginning of the 21st *** topic warrants further study.

关键词： M≥8.0 earthquake astronomical factors solar activity Earth’s rotation lunar declination angle tidal force phenomena

Experimental test of a new neutron threshold detector and its application

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Nuclear Science and Techniques 2002年第3期13卷 149-155页

作者： LI Gui-Sheng, ZHANG Tian-Mei, su you-Wu, LI Shu-Wei(Institute of Modern Physics, the Chinese Academy of Sciences, Lanzhou 730000) Institute of Modern Physics the Chinese Academyo f Sciences Lanzhou 730000 Institute of Modern Physics the Chinese Academyo f Sciences Lznahou 730000

The possibility of using 209Bi as a new threshold detector to measurc high-energy neutrons was investigated for the first time. At the same time the experiment measured successfully the emitted neutron fiuence rate, energy spectrum and dose equivalent rate distributions in the heavy ion target area using a detector complex including 209Bi, 115In, 27A1, 19F and 12C samples.

关键词：阈探测器中子谱实验

Efficient parallel implementation of a density peaks clustering algorithm on graphics processing unit

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Frontiers of Information Technology & Electronic Engineering 2017年第7期18卷 915-927页

作者： Ke-shi GE Hua-you su Dong-sheng LI Xi-cheng LU National Lab for Parallel and Distributed Processing College of Computer National University of Defense Technology Changsha 410003 China

The density peak （DP） algorithm has been widely used in scientific research due to its novel and effective peak density-based clustering approach. However, the DP algorithm uses each pair of data points several times when determining cluster centers, yielding high computational complexity. In this paper, we focus on accelerating the time-consuming density peaks algorithm with a graphics processing unit （GPU）. We analyze the principle of the algorithm to locate its computational bottlenecks, and evaluate its potential for parallelism. In light of our analysis, we propose an efficient parallel DP algorithm targeting on a GPU architecture and implement this parallel method with compute unified device architecture （CUDA）, called the ‘CUDA-DP platform＇. Specifically, we use shared memory to improve data locality, which reduces the amount of global memory access. To exploit the coalescing accessing mechanism of CPU, we convert the data structure of the CUDA-DP program from array of structures to structure of arrays. In addition, we introduce a binary search-and-sampling method to avoid sorting a large array. The results of the experiment show that CUDA-DP can achieve a 45-fold acceleration when compared to the central processing unit based density peaks implementation.

关键词： Density peak Graphics processing unit Parallel computing Clustering

STUDIES ON THE SYNTHESIS AND BIOLOGICAL ACTIVITY OF 1-ARYLOXYACETYL-4-AROYLTHIOSEMICARBAZIDE DERIVATIVES

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Chinese Chemical Letters 1993年第1期4卷 5-8页

作者： Ji Chou CHEN Tai Bao WEI Xiu Chun WANG su you YANG Department of Chemistry Northwest Normal UniversityLanzhou730070 Department of Biology Northwest Normal UniversityLanzhou730070

A series of new 1-aryloxyacetyl-4-aroylthiosemicarbazides were synthesized by means of solid-liguid phase transfer catalysis. The promoting effects of these new compounds on wheat growth were observed.

关键词： STUDIES ON THE SYNTHESIS AND BIOLOGICAL ACTIVITY OF 1-ARYLOXYACETYL-4-AROYLTHIOSEMICARBAZIDE DERIVATIVES Chen