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Enhanced back-illuminated GaO-based solar-blind ultraviolet photodetectors

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Science China Technological Sciences 2024年

作者： YAN ZuYong ZHI Yu Song JI XueQiang yue jianying WANG JinJin LIU Zeng LI Shan LI PeiGang HOU ShangLin WU Gang LEI JingLi TANG WeiHua School of Science State Key Laboratory of Advanced Processing and Recycling of Nonferrous Metals Lanzhou University of Technology China Academy of Launch Vehicle Technology School of Integrated Circuits & State Key Laboratory of Information Photonics and Optical Communications Beijing University of Posts and Telecommunications School of Electronic Information Engineering Inner Mongolia University College of Electronic and Optical Engineering & College of Microelectronics National and Local Joint Engineering Laboratory for RF Integration and Micro-Packing Technologies Nanjing University of Posts and Telecommunications

Ga2O3is a promising material for deep-ultraviolet （DUV） photodetectors due to its ultra-wide bandgap and high thermal and chemical ***,because of their relatively low responsivity,Ga2O3-based photodetectors still have difficulty meeting the requirements of practical ***,we construct a high-performance Ga2O3photodetector realized by *** high-crystallinity epitaxially grown Ga2O3as the DUV absorbing layer and the double-polished Al2O3substrate as the transparent window for injection of photons,the device operating in the back-illuminated mode exhibits a higher DUV photoresponse and faster response speed than in the front-illuminated ***,our experimental results have led to the development of a novel strategy for designing and fabricating high-performance Ga2O3photodetectors.

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丙泊酚闭环靶控输注对增殖性糖尿病视网膜病变合并肾功能衰竭患者眼底术中麻醉深度和血流动力学的影响

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中华医学杂志 2024年第19期104卷 1694-1699页

作者：岳建英张伊王惠军奚春花首都医科大学附属北京同仁医院麻醉科北京

目的探讨丙泊酚闭环靶控输注对增殖性糖尿病视网膜病变(PDR)合并肾功能衰竭患者眼底术中麻醉深度和血流动力学的影响。方法本研究为随机对照试验。前瞻性选择2021年6月至2023年4月于首都医科大学附属北京同仁医院全身麻醉下择期行眼底... 详细信息

目的探讨丙泊酚闭环靶控输注对增殖性糖尿病视网膜病变(PDR)合并肾功能衰竭患者眼底术中麻醉深度和血流动力学的影响。方法本研究为随机对照试验。前瞻性选择2021年6月至2023年4月于首都医科大学附属北京同仁医院全身麻醉下择期行眼底玻璃体切割术(PPV)的PDR合并肾功能衰竭患者70例, 根据丙泊酚不同靶控输注方式, 采用随机数字表法分为两组(n=35):闭环靶控输注组和手动靶控输注组。两组患者均行全静脉麻醉及喉罩通气, 设定麻醉维持脑电双频指数(BIS)目标值为45～55, 术中静脉泵注瑞芬太尼, 间断推注顺阿曲库铵。比较两组患者BIS60持续时间百分比, 以及两组患者不同时间点的平均动脉压(MAP)、心率、BIS值、丙泊酚血浆浓度、血管活性药使用率及术后不良反应发生率的差异。结果闭环靶控输注组40≤BIS≤60持续时间百分比为(84.4±2.7)%, 高于手动靶控输注组的(65.7±3.8)%;BIS60持续时间百分比分别为(11.2±3.2)%及(4.4±1.4)%, 均低于手动靶控输注组的(28.7±4.8)%及(5.5±1.8)%(均P0.05)。结论闭环靶控输注丙泊酚能更精确维持PDR合并肾功能衰竭患者全身麻醉深度以及术中血流动力学平稳。

关键词：丙泊酚闭环靶控输注糖尿病视网膜病变肾功能衰竭麻醉深度

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番茄种质几种病害抗性基因的分子标记检测

分子植物育种 2024年第14期22卷 4590-4609页

作者：王海娟魏瑶刘燕郑于莉郭志慧岳建英尚春明赵明敏内蒙古农业大学园艺与植物保护学院呼和浩特010011 内蒙古包头市农牧业科学研究院包头014013 乌兰察布市兴和县鄂尔栋镇综合保障和技术推广中心乌兰察布012000

番茄病害在番茄生产中危害非常严重,可导致番茄产量和品质的大幅度降低。目前,抗病番茄种质资源较少。因此,本研究拟对不同番茄的种质材料进行番茄根腐病、番茄斑萎病和番茄黄化曲叶病毒病的抗性基因进行分子标记检测。根据已报道的抗... 详细信息

番茄病害在番茄生产中危害非常严重,可导致番茄产量和品质的大幅度降低。目前,抗病番茄种质资源较少。因此,本研究拟对不同番茄的种质材料进行番茄根腐病、番茄斑萎病和番茄黄化曲叶病毒病的抗性基因进行分子标记检测。根据已报道的抗性基因的分子标记引物,对番茄种质材料进行PCR扩增,获得抗性基因的特异性片段,在抗根腐病的分子标记中筛选出83份番茄种质为纯合体抗病体;在抗斑萎病的分子标记中筛选出4份番茄种质为纯合体抗病体;在抗番茄黄化曲叶病毒病分子标记中,筛选出39份番茄种质纯合抗病体。研究结果可为番茄抗病育种的快速鉴定提供理论依据。

关键词：番茄病害抗性基因分子标记

Oxygen vacancies modulating self-powered photoresponse in PEDOT:PSS/ε-Ga_(2)O_(3)heterojunction by trapping effect

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Science China(Technological Sciences) 2022年第3期65卷 704-712页

作者： LI Shan yue jianying LU Chao YAN ZuYong LIU Zeng LI PeiGang GUO DaoYou WU ZhenPing GUO YuFeng TANG WeiHua Laboratory of Information Functional Materials and Devices School of ScienceState Key Laboratory of Information Photonics and Optical CommunicationsBeijing University of Posts and TelecommunicationsBeijing 100876China College of Electronic and Optical Engineering&College of Microelectronics National and Local Joint Engineering Laboratory for RF Integration and Micro-Packaging TechnologiesNanjing University of Posts and TelecommunicationsNanjing 210023China Center for Optoelectronics Materials and Devices&Key Laboratory of Optical Field Manipulation of Zhejiang Province Department of PhysicsZhejiang Sci-Tech UniversityHangzhou 310018China

Can the modulation effect of charge-carrier transfer be inherited from a single layer to its heterojunction structure?Certainly,the answer is ***,we experimentally verify that the photodetection performance modulation effect of oxygen vacancy(Vo)is transmitted from theε-Ga_(2)O_(3)layer to the PEDOT:PSS/ε-Ga_(2)O_(3)(PGO)hybrid *** adopting the annealedε-Ga_(2)O_(3)films,whose Voconcentrations are remolded by annealing ambients,the constructed PGO photodetectors(PDs)demonstrate regulable self-powered *** the V_(o)defects decrease,the photodetection properties are effectively enhanced with a high photo-to-dark current ratio of 2.37×10^(7),an excellent on/off switching ratio of 6.45×10^(5),fast rise/decay time of 121/72 ms,a large responsivity of 67.9 m A/W,superior detectivity of 9.2×10^(13)Jones,an outstanding external quantum efficiency of 33.2%,and a high rejection ratio(R_(250)/R_(400))of 5.96×10^(6)at 0 V in PGO-O;*** better photoresponse is attributed to the less V_(o)defect concentration in theε-Ga_(2)O_(3)layer,which could favor the lower electron-trapping probability and a more efficient charge-carrier *** the universality of V_(o)defects in oxide materials,the proposed regulation strategy of photoresponse will open the route of high self-powered performance for next-generation ultraviolet PDs.

关键词： oxygen vacancy self-powered photodetector heterojunction PEDOT:PSS/ε-Ga2O3

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党史文化融入跨文化外语教学探索

福建开放大学学报 2024年第1期 71-74页

作者：岳剑英颜廷婷华北电力大学北京102206

党史文化是中国共产党在领导中国革命、建设和改革的社会实践中创造的物质的、制度的和精神财富的总和,是中华优秀传统文化的传承和发展。党史文化融入跨文化外语教学是十分必要的。它是实现立德树人根本任务的内在要求,是落实中国文化... 详细信息

党史文化是中国共产党在领导中国革命、建设和改革的社会实践中创造的物质的、制度的和精神财富的总和,是中华优秀传统文化的传承和发展。党史文化融入跨文化外语教学是十分必要的。它是实现立德树人根本任务的内在要求,是落实中国文化“走出去”战略要求的重要内容。通过对高校外语教师以及大学生进行问卷调查发现当前党史文化融入跨文化外语教学现状不尽如人意。尽管教师和学生都有较高的学习党史文化的意愿,但是学习行动滞后,学习效果不明显。基于上述现状,提出党史文化融入跨文化外语教学的多种路径。

关键词：党史文化跨文化外语教学教学路径

Distributional and behavioral responses of the wintering Oriental Storks to drought in China’s largest freshwater lake

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Avian Research 2024年第2期15卷 187-195页

作者： Fucheng Yang Mingqin Shao jianying Wang College of Life Science Jiangxi Normal UniversityNanchang330022China

Extreme droughts are increasing in frequency and severity globally as a result of climate *** understanding of species’responses to drought is crucial for their conservation,especially in regions experi-encing increased *** numerous studies have investigated birds’responses to drought,the emphasis has primarily been on *** can significantly alter the wetland environments that waterbirds inhabit,but the response of waterbirds to drought remains *** this study,we surveyed the distri-bution and behavior of Oriental Storks(Ciconia boyciana)in Poyang Lake,which is the largest freshwater lake in *** indicate that drought-induced catchment areas at the lowest water level limited the total popu-lation size of Oriental Storks in the ***-lakes with large catchment areas at the lowest water level demonstrated a capacity to support a larger population of wintering Oriental *** time,Oriental Storks exhibited a gradual concentration in Changhu Lake,characterized by larger catchments,after resource depletion in sub-lakes with smaller ***,the duration of Oriental Storks’vigilance and moving be-haviors decreased significantly compared with that observed before the *** the drought,Oriental Storks increased their foraging efforts,as evidenced by increased presence in deeper water and reaching their heads and necks into deeper water to forage,higher search rates,but lower foraging *** accordance with area-restricted search theory,reductions in habitat quality resulting from drought,including extensive fish die-offs,forced Oriental Storks to increase their foraging *** a specific water area in sub-lakes during droughts can preserve resource availability,which is crucial for the conservation of Oriental ***-menting measures such as water level control and micro-modification of lake bottoms in sub-lakes might mitigate the impact of drought on the pisc

关键词： Climate change Extreme drought Foraging behavior Oriental stork Poyang lake

Riemann–Hilbert problem for the defocusing Lakshmanan–Porsezian–Daniel equation with fully asymmetric nonzero boundary conditions

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Chinese Physics B 2024年第9期33卷 208-215页

作者： jianying Ji Xiyang Xie Department of Mathematics and Physics and Hebei Key Laboratory of Physics and Energy TechnologyNorth China Electric Power UniversityBaoding 071003China

The Riemann–Hilbert approach is demonstrated to investigate the defocusing Lakshmanan–Porsezian–Daniel equation under fully asymmetric nonzero boundary *** contrast to the symmetry case,this paper focuses on the branch points related to the scattering problem rather than using the Riemann *** the direct problem,we analyze the Jost solution of lax pairs and some properties of scattering matrix,including two kinds of *** inverse problem at branch points can be presented,corresponding to the associated Riemann–***,we investigate the time evolution problem and estimate the value of solving the solutions by Jost *** the inverse problem,we construct it as a Riemann–Hilbert problem and formulate the reconstruction formula for the defocusing Lakshmanan–Porsezian–Daniel *** solutions of the Riemann–Hilbert problem can be constructed by estimating the ***,we work out the solutions under fully asymmetric nonzero boundary conditions precisely via utilizing the Sokhotski–Plemelj formula and the square of the negative column transformation with the assistance of Riemann *** results are valuable for understanding physical phenomena and developing further applications of optical problems.

关键词： Riemann–Hilbert problem defocusing Lakshmanan–Porsezian–Daniel equation inverse scattering transform asymmetric nonzero boundary conditions

The effects of the National Drug Pooled Procurement(NDPP)pilot program in China

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Journal of Chinese Pharmaceutical Sciences 2022年第3期31卷 212-217页

作者： Ningtai Luo jianying yue Ruojing Zhou Bin Jiang Department of Administrative and Clinical Pharmacy School of Pharmaceutical SciencesPeking University Health Science CenterBeijing 100191China School of Health Humanities Peking University Health Science CenterBeijing 100191China School of Government Peking UniversityBeijing 100871China Public Policy Research Center Peking UniversityBeijing 100871China

In 2018,the Chinese government identified four municipalities and seven sub-provincial cities for the implementation of the National Drug Pooled Procurement(NDPP)pilot program(the“4+7”policy).In the present study,we analyzed the effects of the“4+7”policy with data of 25 pilot drugs from the National Healthcare Security Administration(NHSA)from the aspects of drug price,volume,and *** the implementation of the policy,the average price of total and winning drugs was decreased by 54.47%and 73.82%,respectively,while the DDDc of non-winning drugs was decreased by only 1.54%,and the DDDc of uncertificated generic drugs was increased 83.18%.The DDDs indicating the volume of total and winning drugs was increased by 21.18%and 353.98%,respectively,and the DDDs of non-winning drugs was decreased by 61.35%.The costs of total and non-winning drugs were decreased by 44.83%and 61.94%,respectively,and the cost of winning drugs was increased by 18.87%.The“4+7”policy reduced the price and cost of pilot drugs and improved the affordability and accessibility of ***,there were also problems with unexpected excessive price increases of uncertificated generic drugs and relatively high prices of non-winning ***,we highly suggested promoting the normalization and institutionalization of pooled drug procurement,enhancing the administrative capacity of local procurement platforms,and strengthening monitoring the price of non-winning,especially for the uncertificated generic drugs.

关键词： National Drug Pooled Procurement(NDPP)pilot program The“4+7”policy Pooled procurement Volume-based procurement Implementation effects

Aero-structural design of joined-wing aircraft based on high-fidelity model

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Chinese Journal of Aeronautics 2024年第4期37卷 363-377页

作者： Cheng HE Fengjiang ZHAN Luchuang MA Gang CHEN jianying MA Unmanned Air Vehicle Research Institute Nanjing University of Aeronautics and AstronauticsNanjing 210016China Key Laboratory of Advanced Technology for Small and Medium-sized UAV Ministry of Industry and Information TechnologyNanjing University of Aeronautics and AstronauticsNanjing 210016China Aerospace System Engineering Shanghai Shanghai 201108China

The joined-wing configuration reduces induced drag and structural weight by connecting the rear wing to the front *** addition,the rear wing can replace the role of the horizontal tail of a conventional aircraft,thus eliminating the aerodynamic drag and weight associated with the horizontal *** particular shape creates a highly coupled relationship between aerodynamics and structure,which must be fully considered during the overall design process to enhance aircraft *** this research,an aero-structural design model of the joined-wing aircraft is constructed based on high-fidelity computational fluid dynamics and structural finite element *** model is able to obtain accurate aerodynamic loads for the non-planar wing and to simulate the statically indeterminate structure of the closed wing *** influence of the joined-wing shape parameters on the aerodynamic and structural disciplines,as well as the influence of geometric nonlinear characteristics,deformation constraints and buckling constraints on the structural weight are all taken into *** model is applied to complete the aero-structural design optimization of a high-altitude long-endurance joined-wing aircraft,and wind tunnel tests are *** test results verify the credibility of the design model proposed and the validity of the design environment.

关键词： Joined-wing configuration Aircraft design Aero-structural design Finite element Wind tunnel test