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“Aha!” effects in a guessing Chinese logogriph task:An event-related potential study

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Chinese Science Bulletin 2008年第3期53卷 384-391页

作者： QIU Jiang zhang qinglin Key Laboratory of Cognition and Personality (SWU) Ministry of Education Chongqing 400715 China

In the present study,high-density event-related potentials(ERPs)were recorded to examine the elec-trophysiologic correlates of "Aha!" effects in a guessing Chinese logogriph task by using a two-stage model for *** showed that:Firstly Successful Guessing elicited a more negative ERP deflection(N350)than Recognition did in the time window from 300―350 ms after onset of the stimuli.A voltage map of the difference wave(Successful Guessing minus Recognition)showed strong activity at the front-central *** analysis localized the generator of the N350 in the vicinity of the posterior cingulate cortex(PCC)and the inferior frontal ***,a greater late positive component(LPC)in Successful Guessing than Recognition was found between 600 and 700 ms *** analysis localized the generator of LPC in the right parahippocampal gyrus.

关键词：中国字谜解谜方法事件相关可能

Controllable Vapor Growth of Large-Area Aligned CdS_xSe_(1-x) Nanowires for Visible Range Integratable Photodetectors

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Nano-Micro Letters 2018年第4期10卷 33-41页

作者： Muhammad Shoaib Xiaoxia Wang Xuehong zhang qinglin zhang Anlian Pan Key Laboratory for Micro-Nano Physics and Technology of Hunan Province State Key Laboratory of Chemo/Biosensing and Chemometrics College of Materials Science and Engineering Hunan University

The controllable growth of large area band gap engineered-semiconductor nanowires(NWs) with precise orientation and position is of immense significance in the development of integrated optoelectronic devices. In this study, we have achieved large area in-plane-aligned CdS_xSe_(1-x) nanowires via chemical vapor deposition method. The orientation and position of the alloyed CdS_xSe_(1-x)NWs could be controlled well by the graphoepitaxial effect and the patterns of Au catalyst. Microstructure characterizations of these as-grown samples reveal that the aligned CdS_xSe_(1-x)NWs possess smooth surface and uniform diameter. The aligned CdS_xSe_(1-x)NWs have strong photoluminescence and high-quality optical waveguide emission covering almost the entire visible wavelength range. Furthermore, photodetectors were constructed based on individual alloyed CdS_xSe_(1-x)NWs. These devices exhibit high performance and fast response speed with photoresponsivity ～670 A W^(-1) and photoresponse time ～76 ms. Present work provides a straightforward way to realize in-plane aligned bandgap engineering in semiconductor NWs for the development of large area NW arrays,which exhibit promising applications in future optoelectronic integrated circuits.

关键词： Graphoepitaxial effect Bandgap engineering CdSxSe1-x nanowires Optical waveguide Photodetectors

Photoluminescence and surface photovoltage properties of Zn Se nanoribbons

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Science Bulletin 2015年第19期60卷 1674-1679页

作者： Chao Fan qinglin zhang Xiaoli Zhu Xiujuan Zhuang Anlian Pan Key Laboratory for Micro Nano Physics and Technology of Hunan Province School of Physics and Electronic ScienceHunan University

ZnSe nanoribbons were synthesized with chemical vapor deposition route. The excitation power-dependent photol and surface photovoltage （SPV） techniques were used to study the optoelectronic properties of the as-grown ZnSe nanoribbons. Three deep defect （DD）-related emission bands, respectively, centered at 623 nm （DD1）, 563 nm （DD2） and 525 nm （DD3）, emerge orderly with increasing the excitation power, which is attributed to the saturation of the DD states from deeper to shallower level. The SPV spectrum and the corresponding phase spectrum show that DD1 mainly acts as recombination center, while DD2 and DD3 can act as both the recombination center and electron traps. The influence of the trapping electrons on the SPV response dynamic was studied with transient SPV.

关键词： ZnSe Nanoribbon Photoluminescence Surface photovoltage Deep defect

Number of Species and Geographical Distribution of Diospyros L.(Ebenaceae) in China

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Horticultural Plant Journal 2019年第2期5卷 59-69页

作者： Donglan Tang qinglin zhang Liqing Xu Dayong Guo Zhengrong Luo Key Laboratory of Horticultural Plant Biology Huazhong Agricultural University Nanjing Agricultural Institute of Jiangsu Hilly Region Hubei Collaborative Innovation Center for the Characteristic Resources Exploitation of Dabie Mountains/Hubei Key Laboratory of Economic Forest Germplasm Improvement and Resources Comprehensive Utilization Huanggang Normal University

Diospyros L. is the largest, most widely distributed, and economically important genus of the family Ebenaceae. However, various researchers disagree on the number of species and geographical distribution of Diospyros in China. For the purpose of providing a scientific basis for the effective protection and rational use of Diospyros, the present study involved a comprehensive review of the literature, electronic databases, and herbaria as well as field investigations. The results showed as the following.(1) While 174 scientific names have been published for various taxa of Diospyros in China, by screening and excluding synonyms, 65 species names were considered acceptable; these account for about 12%of the total species of Diospyros globally.(2) A review of herbarium specimens documented that Diospyros occurs in 28 administrative regions of China, more than the literature records. Species richness decreases from south to north in China while Guangxi, Yunnan, Guangdong, and Hainan have the greatest number of species.(3) Among the 65 relatively reliable Diospyros species, 45 species are endemic to China and 18 species are stenochoric. Some species may have become extinct as a result of environmental degradation and the status of some germplasm remain unresolved. In brief, Chinese Diospyros includes abundant, China-specific, and widely distributed features. Nevertheless, comprehensive species delimitation and the analysis of phylogenetic relationships will still require further study.

关键词： Diospyros L. Ebenaceae species number geographic distribution

Asymmetric Electrochemical Arylation in the Formal Synthesis of(+)-Amurensinine

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CCS Chemistry 2021年第12期3卷 338-347页

作者： qinglin zhang Kang Liang Chang Guo Hefei National Laboratory for Physical Sciences at the Microscale Department of ChemistryUniversity of Science and Technology of ChinaHefei 230026

Asymmetric electrochemical synthesis has emerged as an attractive and sustainable alternative for the distinctive activation of bond connections in the preparation of diverse enantiomerically enriched targets,including natural products and pharmaceutical ***,we describe the chiral Lewis acid-catalyzed enantioselective electrochemical anodic coupling reaction as a key step in the presented formal synthesis of isopavine alkaloids.

关键词： asymmetric catalysis electrochemistry Lewis acid catalysis arylation α α-diaryl carbonyl skeletons

Realization of Magnetic Signal Acquisition Scheme for Banknotes

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Wuhan University Journal of Natural Sciences 2016年第4期21卷 344-350页

作者： WANG Yang zhang qinglin CHEN Xi ZOU Lian School of Electronic Information Wuhan University College of Physical Science and Technology Central China Normal University International School of Software Wuhan University

In order to solve the problem of low signal-to-noise ratio（about 15 d B） in magnetic signal acquisition of banknotes, a new method of magnetic signal acquisition and processing is proposed taking RMB as an example. In this method, weak signa detection is performed to reduce the noise accompanied with the signal. Seven orders of Chebyshev（Ⅰ） filter and the anti-jamming technology are used in the PCB layout, and grounding modes are introduced to reduce the noise of the amplitude waveform. The proposed method reduce the final output noise by 2/3 and the sig nal-to-noise ratio is increased to 24 d B. The experimental results show that the magnetic signal of RMB banknotes are acquired by the circuit stability, which provides an important guarantee for the improvements of the anti-counterfeit and discrimination for banknotes performance.

关键词： magnetic signal electromagnetic interference weak signal detection seven orders of Chebyshev

Preferential transport activity of Dk DTX5/MATE5 affects the formation of different astringency in persimmon

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Journal of Integrative Plant Biology 2023年第10期65卷 2304-2319页

作者： Ying Liu Xin Wu Chenfeng Sun Wenxing Chen Meng zhang Niannian Liu qinglin zhang Liqing Xu Zhengrong Luo National Key Laboratory for Germplasm Innovation&Utilization of Horticultural Crops Huazhong Agricultural UniversityWuhan 430070China

Proanthocyanidins(PAs) are specialized metabolites that infuence persimmon fruit *** astringent(A)-type and non-astringent(NA)-type mutants show significant variation in PA accumulation, but the infuencing mechanism remains unclear. In this study, among the six identified DTXs/MATEs proteins associated with PA accumulation, we observed that allelic variation and preferential transport by Dk DTX5/MATE5 induced variation in PA accumulation for A-type and NA-type fruit. The expression pattern of Dk DTX5/MATE5 was correlated with PA accumulation in NA-type fruit. Upregulation and downregulation of Dk DTX5/MATE5 promoted and inhibited PA accumulation, respectively, in the NA-type fruit. Interestingly, transporter assays of Xenopus laevis oocytes indicated that Dk DTX5/MATE5 preferentially transported the PA precursors catechin, epicatechin, and epicatechin gallate, resulting in their increased ratios relative to the total PAs, which was the main source of variation in PA accumulation between the A-type and NA-type. The allele lacking Ser-84 in Dk DTX5/MATE5 was identified as a dominantly expressed gene in the A-type and lost its transport function. Site-directed mutagenesis revealed that Dk DTX5/MATE5 binds to PA precursors via Ser-84. These findings clarify the association between the transporter function of Dk DTX5/MATE5 and PA variation, and can contribute to the breeding of new cultivars with improved fruit quality.

关键词： astringency DTX/MATE persimmon(Diospyros kaki Thunb.) proanthocyanidins(PAs) tonoplast transmembrane

Lateral composition-graded semiconductor nanoribbons for multi-color nanolasers

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Nano Research 2016年第4期9卷 933-941页

作者： Xiujuan Zhuang Pengfei Guo qinglin zhang Huawei Liu Dan Li Wei Hu Xiaoli Zhu Hong Zhou Anlian Pan Key Laboratory for Micro-Nano Physics and Technology of Hunan Province Key Laboratory for Micro/Nano Optoelectronic Devices of Ministry of Education School of Physics and electronics Hunan University Changsha 410082 China

Low-dimensional semiconductor nanostructures have attracted much interest for applications in integrated photonic and optoelectronic devices. Band gap engineering within single semiconductor nanoribbons helps to manipulate photon behavior in two different cavities （in the width and length directions） and realize new photonic phenomena and applications. In this work, lateral composition-graded semiconductor nanoribbons were grown for the first time through an improved source-moving vapor phase route. Along the width of the nanoribbon, the material can be gradually tuned from pure CdS to a highly Se-doped CdSSe alloy with a corresponding band gap modulation from 2.42 to 1.94 eV. The achieved alloy ribbons are overall high-quality crystals, and the position-dependent band-edge photoluminescence （PL） emission had a peak wavelength continuously tuned from -515 to -640 nm. These ribbons can realize multi-color lasing with three groups of lasing modes centered at 519, 557, and 623 run. It was confirmed that the red lasing was from optical resonance along the length direction, while the green and yellow lasing was from optical resonance along the width direction. These novel nanoribbon structures may be applied to many integrated photonic and optoelectronic devices.

关键词： composition grade semiconductor nanoribbon nanolaser multi-color

Experiment on Fruit-crop Intercropping Soybean Water Consume Rule in Drip Irrigation

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Experiment on Fruit-crop Intercropping Soybean Water Consume...