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Asian Herpetological Research 2024年第1期15卷 31-40页

作者： Zhitong LYU Maoliang LI Guanqi WANG Gang LIU Min LIU ke jiang Dechun jiang Jiatang LI CAS key Laboratory of Mountain Ecological Restoration and Bioresource Utilization Ecological Restoration and Biodiversity Conservation Key Laboratory of Sichuan ProvinceChengdu Institute of BiologyChinese Academy of SciencesChengdu 610040SichuanChina Chengdu Nature Reserve and Wildlife Protection Center Chengdu 610081SichuanChina University of Chinese Academy of Sciences Beijing 100049China

In the present study,we propose the synonymization of Kurixalus silvaenaias with Kurixalus *** conclusion is based on morphological examination and phylogenetic analysis of a series of newly collected specimens,as well as the type series of both *** publication dates of the two species were determined according to the related articles of the International Code of Zoological *** note,the ZooBank registrations for both species are ***,the publication of *** does not qualify as a published work and the correct publication date of *** should be the date on which it was physically ***,based on the results presented in this study and its original description,the proposal of *** is deemed untenable and should,therefore,be considered a junior synonym of *** further provide suggestions for the authors,editors,and publishers who are working on taxonomic publications,as well as for ZooBank to improve the registering service.

关键词： Kurixalus inexpectatus Kurixalus qionglaiensis Kurixalus silvaenaias nomenclature the Code

Optimizing 2D-metal contact in layered Tin-selenide via native oxide modulation

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Nano Research 2024年第4期17卷 3014-3020页

作者： Yue Zheng Qi You Zhentian Yin Jian Tang ke jiang Zihao Xie Henan Li Cheng Han Yumeng Shi International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology of Ministry of Education Institute of Microscale OptoelectronicsShenzhen UniversityShenzhen 518060China College of Electronics and Information Engineering Shenzhen UniversityShenzhen 518060China

The discovery of two-dimensional(2D)semiconductor has opened up new avenues for the development of short-channel field-effect transistors(FETs)with desired electrical *** them,orthorhombic tin-selenide(SnSe)has garnered increasing attention due to its potential applications in a variety of electronic,optoelectronic,and thermoelectric ***,the realization of high-performance SnSe FETs with low contact resistance(Rc)remains a ***,we systematically investigate the contact of few-layer SnSe FETs through the modulation of native oxide on SnSe by using different *** is found that chromium(Cr)-contacted devices possess the best FET performance,such as electron mobility up to 606 cm^(2)/(V·s)at 78 K,current on/off ratio exceeding 1010,and saturation current of~550μA/μm,where a negligible Schottky barrier(SB)of~30 meV and a low contact resistance of~425Ωμm are achieved.X-ray photoelectron spectroscopy(XPS)and cross-sectional electron dispersive X-ray spectroscopy(EDX)results further reveal that the improved contact arises from the Cr-induced reduction of native oxide(SnOx)to Sn,which thins the tunneling barrier for efficient electron *** findings provide a deep insight into the 2D-metal contact of SnSe and pave the way for its applications in future nanoelectronics.

关键词： few-layer SnSe field-effect transistors(FETs) Cr contact native oxide contact resistance(Rc) Schottky barrier(SB)

Nonvolatile and reconfigurable two-terminal electro-optic duplex memristor based on Ⅲ-nitride semiconductors

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Light(Science & Applications) 2024年第4期13卷 706-716页

作者： Zhiwei Xie ke jiang Shanli Zhang Jianwei Ben Mingrui Liu Shunpeng Lv Yang Chen Yuping Jia Xiaojuan Sun Dabing Li State key Laboratory of Luminescence and Applications Changchun Institute of OpticsFine Mechanics and PhysicsChinese Academy of SciencesDongnanhu Road No.3888Changchun 130033China Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of SciencesYuquan Road No.19100049 BeijingChina

With the fast development of artificial intelligence(AI),Internet of things(IOT),etc,there is an urgent need for the technology that can efficiently recognize,store and process a staggering amount of *** AlScN material has unique advantages including immense remnant polarization,superior temperature stability and good latticematch to other III-nitrides,making it easy to integrate with the existing advanced III-nitrides material and device ***,due to the large band-gap,strong coercive field,and low photo-generated carrier generation and separation efficiency,it is difficult for AlScN itself to accumulate enough photo-generated carriers at the surface/interface to induce polarization inversion,limiting its application in in-memory sensing and *** this work,an electro-optic duplex memristor on a GaN/AlScN hetero-structure based Schottky diode has been *** twoterminal memristor shows good electrical and opto-electrical nonvolatility and *** both electrical and opto-electrical modes,the current on/off ratio can reach the magnitude of 104,and the resistance states can be effectively reset,written and long-termly *** on this device,the“IMP”truth table and the logic“False”can be successfully reproduced,indicating the huge potential of the device in the field of in-memory sensing and computing.

关键词： polarization duplex limiting

Pollutant emissions from biomass burning:A review on emission characteristics,environmental impacts,and research perspectives

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Particuology 2024年第2期85卷 296-309页

作者： ke jiang Ran Xing Zhihan Luo Wenxuan Huang Fan Yi Yatai Men Nan Zhao Zhaofeng Chang jinfeng Zhao Bo Pan Guofeng shen College of Urban and Environmental Sciences Peking UniversityBeijing100871China Beijing key Lab Plant Resources Research and Development Beijing Technology and Business UniversityBeijing100048China College of Ecology and Environment Zhengzhou UniversityZhengzhou450001China Facultyof Environmental Sciences and Engineering Kunming University of Science and TechnologyYunnan Provincial Key Laboratoryof Soil Carbon Sequestration and Pollution ControlKunming650500China Institute of Carbon Neutrality Peking UniversityBeijing100871China

Biomass is one most abundant resource on the earth providing important energies in support of so-cioeconomic development in many *** of biomass fuels comprises to nearly 10%of the total energy from anthropogenic combustion processes:however,as the burning is usually incomplete,this process yields products of incomplete combustion posing consequently significant impacts on air quality,human health,and climate ***,we analyzed spatiotemporal characteristics in intentional and unintentional biomass burning from different sectors,discussed impacts of biomass burning emissions on indoor and outdoor air quality,and consequent influences on human *** global total con-sumption amount of biomass including both natural and anthropogenic sources was approximately 7900 Tg in 2019,with significantly large regional and sectorial discrepancies among ***,anthropogenic biomass burning amounts increased gradually,but notably in some developing countries like China residential consumption of biomass fuels,as one large sector of biomass use,decreased over *** biomass consumption needs to be accurately *** are relatively rich datasets of pollutant emission factors from biomass burning,including laboratory and field tests,but still large variations exit and contribute substantially to the uncertainty in emission *** pri-mary PM2.5,black carbon and organic carbon emissions from biomass burning were about 51,4.6,and 29 Tg,respectively,contributing to nearly 70%,55%,and 90%of the total emission from all sources,and emissions from the residential sector and open fires are major *** carbon emissions from biomass burning attracts growing interests but available studies adopted different methodologies challenging the comparability of those *** burning emissions polluted not only ambient air but more severely indoor air quality,adversely affecting human *** studies that should be emphasiz

关键词： Biomass burning Carbonaceous aerosol Emission Air quality Human health

Interlayer exciton dynamics of transition metal dichalcogenide heterostructures under electric fields

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Nano Research 2024年第5期17卷 4555-4572页

作者： Jian Tang Yue Zheng ke jiang Qi You Zhentian Yin Zihao Xie Henan Li Cheng Han Xiaoxian Zhang Yumeng Shi International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology of Ministry of Education Institute of Microscale OptoelectronicsShenzhen UniversityShenzhen 518060China College of Electronics and Information Engineering Shenzhen UniversityShenzhen 518060China key Laboratory of Luminescence and Optical Information Ministry of EducationInstitute of Optoelectronic TechnologyBeijing Jiaotong UniversityBeijing 100044China

Stacking single layers of atoms on top of each other provides a fundamental way to achieve novel material systems and engineer their physical properties,which offers opportunities for exploring fundamental physics and realizing next-generation optoelectronic *** the two-dimensional(2D)-stacked systems,transition metal dichalcogenide(TMDC)heterostructures are particularly attractive because they host tightly-bonded interlayer excitons which possess various novel and appealing *** interlayer excitons have drawn significant research attention and hold high potential for the application in unique optoelectronic devices,such as polarization-and wavelength-tunable single photon emitters,valley Hall transistors,and possible high-temperature *** development of these devices requires a comprehensive understanding of the fundamental properties of these interlayer excitons and the impact of electric fields on their *** this review,we summarize the recent advances on the understanding of interlayer exciton dynamics under electric fields in TMDC *** put emphasis on the electrical modulation of interlayer excitons’emission,the valley Hall transport of charge carriers after the separation of interlayer excitons by an electric field,and the correlation physics of interlayer excitons and charges under electrical doping and *** and perspectives are finally discussed for the application of TMDC heterostructures in future optoelectronics.

关键词： interlayer exciton transition metal dichalcogenide(TMDC)heterostructures circular polarization valley Hall effect strong coupling

Assessing Factors Influencing Solar Energy Adoption among Small and Medium Enterprises in Mzuzu City, Malawi

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Energy and Power Engineering 2024年第7期16卷 257-284页

作者： Mkhalipie Avenea Beatrice ke jiang School of Business Nanjing University of Information Science and Technology Nanjing China

One of the many renewable energy sources that offer advantages is solar energy, which also lowers energy prices and promotes environmental sustainability and energy security. Despite these advantages, various barriers, such as installation costs, have prevented small and medium-sized enterprises from investigating this invention. Malawi has a significant energy shortfall such that most businesses have been hindered from their profit maximization goals. The “Photovoltaic systems” (PV) that transform sunlight into electricity are the subject of this study. This type of solar energy system is situated on the building’s roof and generally produces electricity for businesses and even homes. Solar energy offers a great impact to small and medium enterprises in Mzuzu city with a cost-effective and dependable alternative to energy that has the potential to change the game. Therefore the aim of the study was to identify factors that encourage the adoption of solar energy among small medium enterprises in the city of Mzuzu city. And to identify some of barriers faced when adopting solar energy among small and medium enterprises in the city of Mzuzu. The research approach employed in the study was a survey. A survey is a type of research methodology in which primary data is gathered from a sample using a questionnaire. When information is to be gathered from a wider sample, a survey is employed. A bigger sample size was needed in this study in order to facilitate hypothesis testing. It is advised to apply a logical approach while using the survey. The survey utilized a five-point Likert scale. The study used convenience sampling to select study participants. The sample size in this study was determined using Cochran’s sample size formula. Statistical Package for Social Sciences (SPSS) and Microsoft Excel were used for statistical analysis. About 97.2% of the participants were aware of solar as a source of energy compared to 2.8 % who were unaware. The majority of participants

关键词： Solar Energy Small and Medium Enterprises Solar Energy Adoption

240 nm AlGaN-based deep ultraviolet micro-LEDs:size effect versus edge effect

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Journal of Semiconductors 2024年第1期45卷 55-62页

作者： Shunpeng Lu jiangxiao Bai Hongbo Li ke jiang Jianwei Ben Shanli Zhang Zi-Hui Zhang Xiaojuan Sun Dabing Li State key Laboratory of Luminescence and Applications Changchun Institute of OpticsFine Mechanics and PhysicsChinese Academy of SciencesChangchun 130033China Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of SciencesBeijing 100049China key Laboratory of Electronic Materials and Devices of Tianjin School of Electronics and Information EngineeringHebei University of TechnologyTianjin 300401China

240 nm AlGaN-based micro-LEDs with different sizes are designed and ***,the external quantum efficiency(EQE)and light extraction efficiency(LEE)are systematically investigated by comparing size and edge ***,it is revealed that the peak optical output power increases by 81.83%with the size shrinking from 50.0 to 25.0μ***,the LEE increases by 26.21%and the LEE enhancement mainly comes from the sidewall light *** notably,transversemagnetic(TM)mode light intensifies faster as the size shrinks due to the tilted mesa side-wall and Al reflector ***,when it turns to 12.5μm sized micro-LEDs,the output power is lower than 25.0μm sized *** underlying mechanism is that even though protected by SiO2 passivation,the edge effect which leads to current leakage and Shockley-Read-Hall(SRH)recombination deteriorates rapidly with the size further ***,the ratio of the p-contact area to mesa area is much lower,which deteriorates the p-type current spreading at the mesa *** findings show a role of thumb for the design of high efficiency micro-LEDs with wavelength below 250 nm,which will pave the way for wide applications of deep ultraviolet(DUV)micro-LEDs.

关键词： AlGaN deep ultraviolet micro-LEDs light extraction efficiency size effect edge effect

一种可提高室内视觉SLAM的结构线特征选择方法

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测绘地理信息 2024年第1期49卷 91-95页

作者：姜可詹总谦王鑫武汉大学测绘学院湖北武汉430079

室内场景由大量的平面和直线构成,且经常存在纹理单一而少的情况,这会使得产生的点特征稀少且分布不均匀,从而导致传统的以点特征为观测值的视觉同步定位与建图(simultaneous localization and mapping,SLAM)容易产生不准确的定位结果... 详细信息

室内场景由大量的平面和直线构成,且经常存在纹理单一而少的情况,这会使得产生的点特征稀少且分布不均匀,从而导致传统的以点特征为观测值的视觉同步定位与建图(simultaneous localization and mapping,SLAM)容易产生不准确的定位结果。本文针对室内场景,在基于点特征的视觉SLAM基础上,引入线特征作为额外的观测值。针对与运动方向平行的线特征对运动估计的几何约束较弱的不足,提出一种能从线特征中筛选出与运动方向不平行的线特征的方法,选择与运动方向不平行的结构线特征参与平差优化,提高室内视觉SLAM的定位精度。实验表明,在公开数据集上,使用本文的方法后,定位精度能在基本不影响实时性的条件下提高15%左右。

关键词：结构线定向灭点室内视觉SLAM

面向DAS系统的震源信号初至波到达时间拾取方法

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激光与光电子学进展 2024年第9期61卷 272-278页

作者：黄亮梁磊江轲杜尚明武汉理工大学光纤传感技术与网络国家工程研究中心湖北武汉430070 武汉理工大学信息工程学院湖北武汉430070

在基于相敏光时域反射计(Φ-OTDR)的光纤分布式声传感(DAS)系统定位震源二维空间位置方法中,由于干扰和噪声的影响,存在震源初至波到达光缆不同位置时间信息获取不准确的问题,带来较大的定位误差。针对DAS系统,提出了一种基于双边滤波... 详细信息

在基于相敏光时域反射计(Φ-OTDR)的光纤分布式声传感(DAS)系统定位震源二维空间位置方法中,由于干扰和噪声的影响,存在震源初至波到达光缆不同位置时间信息获取不准确的问题,带来较大的定位误差。针对DAS系统,提出了一种基于双边滤波边缘检测的震源初至波到达时间拾取方法。首先,将DAS系统采集的震源时空二维信号转换成灰度图,用双边滤波方法进行降噪,然后,应用基于Canny算子的边缘检测方法提取灰度图像中的边缘特征,来获得震源初至波到达时间。这种方法能够同时考虑时空二维数据的时间和空间整体特征,提高低信噪比信号初至波到达时间的拾取精度。现场实验表明,该方法对于受干扰和系统噪声影响的低信噪比信号,拾取的到达时间平均误差不超过3 ms,拾取精度比传统方法高,算法平均耗时仅需0.1 s,拾取时间短。

关键词：分布式声传感震源边缘检测双边滤波到达时间拾取

数字技术应用、商业模式创新与企业绩效——来自中国A股上市公司的经验证据

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产经评论 2024年第1期15卷 64-79页

作者：井辉江可慧郑州大学商学院

随着现代科学技术的发展,数字技术应用已成为企业高质量发展的必由之路。数字技术可以帮助企业优化流程、推进创新、提升绩效,达到降本增效的目的。运用2010—2020年中国A股上市公司样本数据,基于资源基础理论、资源编排理论和动态能力... 详细信息

随着现代科学技术的发展,数字技术应用已成为企业高质量发展的必由之路。数字技术可以帮助企业优化流程、推进创新、提升绩效,达到降本增效的目的。运用2010—2020年中国A股上市公司样本数据,基于资源基础理论、资源编排理论和动态能力理论,考察数字技术应用对企业绩效的影响以及商业模式创新在其中的作用机制。结果表明:(1)数字技术应用对企业绩效有显著的正向影响;(2)商业模式创新在数字技术应用与企业绩效的关系中起部分中介作用。进一步分析表明,数字技术应用对国有企业、成熟期企业和技术吸收能力强企业绩效的影响更为显著。研究结论为认识数字技术应用影响企业绩效的机制提供了一个新解释,也揭示了数字经济背景下企业绩效提升的潜在路径。

关键词：数字技术应用商业模式创新技术吸收能力企业绩效