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Journal of Integrative Agriculture 2024年第11期 3788-3800页

作者： chengdong yang Manfei Luo Xue Zhang Linlin Ye Ge Yu Yi Lü Yi Chen Taixu Chen Xuejian Wang Wanzhen Feng Qinghe Chen School of Breeding and Multiplication (Sanya Institute of Breeding and Multiplication) Hainan University Key Laboratory of Green Prevention and Control of Tropical Plant Diseases and Pests of Ministry of Education School of Tropical Agriculture and Forestry Hainan University Fujian Key Laboratory for Monitoring and Integrated Management of Crop Pests

Litchi downy blight, caused by the plant pathogenic oomycete Peronophythora litchii, is one of the most devastating diseases on litchi and resulted in huge economic losses. Autophagy plays an essential role in the development and pathogenicity of the filamentous fungi. However, the function of autophagy in oomycetes remain elusive. Here, an autophagy-related protein Atg3 homolog PlAtg3 was identified and characterized in P. litchii. The absence of PlATG3 through the CRISPR/Cas9 gene replacement strategy compromised vegetative growth and sexual/asexual development. Cytological analyses revealed that the deletion of PlATG3 impaired autophagosome formation with monodansylcadaverine(MDC) staining and significantly disrupted zoospore release due to defects of sporangial cleavage with FM4-64 staining. Atg8 is considered to be an autophagy marker protein in various species. Western blot analysis indicated that PlAtg3 is involved in degradation of PlAtg8-PE. Interestingly, PlAtg3 was unable to interact with PlAtg8 in yeast two hybrid(Y2H) assays, possibly due to the absence of the Atg8 family interacting motif(AIM) in PlAtg3. Furthermore, pathogenicity assays revealed that the deletion of PlATG3 considerably reduced the virulence of P. litchii. Taken together, our data reveal that PlAtg3 plays an important role in radial growth, asexual/sexual development, sporangial cleavage and zoospore release, autophagosome formation, and pathogenicity in P. litchii. This study contributes to a better understanding of the pathogenicity mechanisms of P. litchii and provides insights for the development of more effective strategies to control oomycete diseases.

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一种在空气中运行稳定的界面保护型光学神经突触器件

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光学学报 2024年第14期44卷 250-257页

作者：李欣蔚杨成东苏琳琳刘逸龙南京信息工程大学电子与信息工程学院江苏南京210044 无锡学院电子信息工程学院江苏无锡214105

提出了利用在二氧化硅表面覆盖一层超薄(7 nm)致密的氮化硅来隔离空气中氧气的方法,氮化硅低的隧穿势垒能够保证电子通过并到达二氧化硅界面,形成电子捕获态。这样的器件设计极大地提高了器件在空气中的运行稳定性。此外,还模拟了突触... 详细信息

提出了利用在二氧化硅表面覆盖一层超薄(7 nm)致密的氮化硅来隔离空气中氧气的方法,氮化硅低的隧穿势垒能够保证电子通过并到达二氧化硅界面,形成电子捕获态。这样的器件设计极大地提高了器件在空气中的运行稳定性。此外,还模拟了突触可塑性行为。该设计不仅能够确保基于二氧化硅界面捕获的突触器件在空气中稳定地运行,而且能够为解决器件运行稳定性问题提供一种可行思路。

关键词：神经形态器件肖特基二极管界面捕获界面保护

双层Si_(3)N_(4)/SiO_(2)隧穿结操纵的可重构光学伤害感受器

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光学学报 2024年第11期44卷 244-250页

作者：杨成东刘逸龙苏琳琳李欣蔚徐丽华无锡学院江苏省集成电路可靠性技术及检测系统工程研究中心江苏无锡214105

合理设计材料性能和器件结构,提出一种易于制造、低能耗、可重构的光学伤害感受器,它能够进行阈值触发的自适应双模跳跃,类似于阈值触发的光照疼痛警报。利用双层Si_(3)N_(4)/SiO_(2)隧穿结,基于Si_(3)N_(4)电介质的隧穿模式转变实现高... 详细信息

合理设计材料性能和器件结构,提出一种易于制造、低能耗、可重构的光学伤害感受器,它能够进行阈值触发的自适应双模跳跃,类似于阈值触发的光照疼痛警报。利用双层Si_(3)N_(4)/SiO_(2)隧穿结,基于Si_(3)N_(4)电介质的隧穿模式转变实现高强度和重复训练触发的模式跳变。当输出电流小于阈值时,该器件能够以较低的能量损耗密度(33.5 fJ/μm^(2))来表达一些常见的突触功能。因此,所提隧穿结的光学伤害感受器不仅能够为构建光照疼痛警报系统提供有用信息,而且能为阈值相关的新应用开辟新途径。

关键词：光电子学神经形态器件光学伤害感受器 Si_(3)N_(4)/SiO_(2)隧穿结隧穿模式阈值跳变

高均匀性1×128 SiC紫外雪崩光电二极管探测阵列

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电子元件与材料 2024年第7期43卷 804-808页

作者：李红旭苏琳琳杨成东无锡学院电子信息工程学院江苏无锡214105

主要研究了SiC雪崩光电二极管(APD)阵列对微弱紫外光的探测均匀性问题,设计并制备了1×128 SiC APD探测阵列,通过表征各像素点的电流-电压曲线,提取出APD阵列的击穿电压波动在±0.1 V;通过被动淬灭电路表征各像素点的微弱紫外光探测能力... 详细信息

主要研究了SiC雪崩光电二极管(APD)阵列对微弱紫外光的探测均匀性问题,设计并制备了1×128 SiC APD探测阵列,通过表征各像素点的电流-电压曲线,提取出APD阵列的击穿电压波动在±0.1 V;通过被动淬灭电路表征各像素点的微弱紫外光探测能力,提取出APD阵列的暗计数率波动在±0.5 Hz/μm^(2),单光子探测效率波动在±0.4%,良率达到91%,结果表明本工作设计的SiC APD探测阵列能够为微弱紫外光成像技术提供可行的技术方案。

关键词：雪崩光电二极管 SiC 探测阵列高均匀性良率

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一种新型信息处理器件:神经形态器件

光电子．激光 2024年第7期35卷 761-784页

作者：刘逸龙李晖苏琳琳李欣蔚杨成东无锡学院电子信息工程学院江苏无锡214105 南京信息工程大学电子与信息工程学院江苏南京210044

人工智能时代呈现指数增长的待处理数据量对计算机能效提出了更高的要求。因此,在后摩尔时代显然迫切需要开发新型的计算机技术来应对这种挑战。受人脑并行运算架构的启发,模拟突触器件基于“存算一体”架构被认为是突破传统冯·诺依曼... 详细信息

人工智能时代呈现指数增长的待处理数据量对计算机能效提出了更高的要求。因此,在后摩尔时代显然迫切需要开发新型的计算机技术来应对这种挑战。受人脑并行运算架构的启发,模拟突触器件基于“存算一体”架构被认为是突破传统冯·诺依曼瓶颈的有效技术。本文着重梳理了神经形态器件的忆阻机制,按照编程方式对近期突触器件的相关工作开展了分类解读,并结合器件特性介绍了它们在感知模拟等方面的潜在应用。最后,总结了当前神经形态器件所面临的关键技术挑战,并对其未来的发展前景进行了展望。

关键词：神经形态器件人工突触忆阻器晶体管

New Zircon U-Pb Age of Granodiorite from the Shayikenbulake Be Deposit in Altay, Xinjiang and its Significance

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Acta Geologica Sinica(English Edition) 2018年第2期92卷 870-871页

作者： LI Qiang yang Fuquan yang chengdong Key Laboratory of Metallogeny and Mineral Assessment Ministry of Land and Resources Institute of Mineral Resources Chinese Academy of Geological Sciences

Objective Intrusive rocks are widely distributed in Altay, Xinjiang, and appear in every structural belt. The rocks are mainly granite （Song Peng et al., 2017）, which formed from 523 Ma to 202 Ma and can be divided into five periods： 479-421 Ma, 410-370 Ma, 368-313 Ma, 300- 252 Ma and 247-202 Ma. However, intrusive rocks earlier than the Ordovician are rarely found. The small- scale low-grade metamorphic granite intruded in the Kanasi Group is the oldest intrusion reported up to now, which is the only one formed in the Early Cambrian （5234-19 Ma, Liu Yuan et al., 2013）. Few Cambrian intrusions limit the study of early magmatic-tectonic evolution in Altay. Medium-free-grained granodiorite is exposed widely in the Shayikenbulake deposit of Central Altay, and occurs as batholith. It formed in the Early Cambrian indicated by U-Pb dating, and is an ideal intrusion for studying Cambrian magmatic-tectonic events in Altay.

关键词： Pb ICP MS Co Xinjiang and its Significance New Zircon U-Pb Age of Granodiorite from the Shayikenbulake Be Deposit in Altay

Guaranteed cost boundary control for cluster synchronization of complex spatio-temporal dynamical networks with community structure

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Science China(Information Sciences) 2018年第5期61卷 254-266页

作者： chengdong yang Jinde CAO Tingwen HUANG Jianbao ZHANG Jianlong QIU School of Automation Southeast University School of Information Science and Technology Linyi University School of Mathematics and Research Center for Complex Systems and Network SciencesSoutheast University Texas A & M University at Qatar School of Automobile Engineering Linyi University

This paper discusses the problem for cluster synchronization control of a nonlinear complex spatio-temporal dynamical network(CSDN) with community structure. Initially, a collocated boundary controller with boundary measurement is studied to achieve the cluster synchronization of the CSDN. After that, a guaranteed cost boundary controller is further developed based on the obtained results. Furthermore,the suboptimal control design is addressed by minimizing an upper bound of the cost function. Finally, a numerical example is given to demonstrate the effectiveness of the proposed methods.

关键词： cluster synchronization complex dynamical networks boundary control guaranteed control LMIs

新疆东天山黄滩金铜锌矿成矿时代——来自白云母^(40)Ar-^(39)Ar年龄和黄铁矿Re-Os年龄约束

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大地构造与成矿学 2024年第2期48卷 368-379页

作者：耿新霞张志欣张振龙李宁杨富全杨成栋成曦晖中国地质科学院矿产资源研究所自然资源部成矿作用与资源评价重点实验室北京100037 中国科学院新疆生态与地理研究所新疆矿产资源研究中心新疆乌鲁木齐830011 太原理工大学矿业工程学院山西太原030024 东华理工大学核资源与环境国家重点实验室江西南昌330013

卡拉塔格是东天山十分重要的铜矿集区,发育5个不同时代和成矿类型的成矿系统。近年来新发现了黄滩(包括金岭)金铜锌矿床,赋存于火山岩系中,发育层状矿化、脉状矿化和黄铁绢英岩化,但层状矿化和黄铁绢英岩化形成时代不清楚,制约了进一步... 详细信息

卡拉塔格是东天山十分重要的铜矿集区,发育5个不同时代和成矿类型的成矿系统。近年来新发现了黄滩(包括金岭)金铜锌矿床,赋存于火山岩系中,发育层状矿化、脉状矿化和黄铁绢英岩化,但层状矿化和黄铁绢英岩化形成时代不清楚,制约了进一步找矿勘查工作。本文基于野外调查和室内研究,开展白云母^(40)Ar-^(39)Ar年龄和黄铁矿Re-Os年代学研究,获得黄铁绢英岩中白云母^(40)Ar-^(39)Ar坪年龄为429.46±3.91 Ma,7件层状矿化中黄铁矿Re-Os等时线年龄为436.5±4.2 Ma。层状矿化年龄与前人获得含矿岩系英安岩和英安质凝灰岩年龄(434~438 Ma)、脉状矿化年龄(432~438 Ma)一致,表明层状矿化、脉状矿化和黄铁绢英岩化是同一成矿事件的产物,黄滩为富金火山成因块状硫化物(VMS)型矿床。因此,尽管黄滩和红海‒黄土坡为VMS型矿床,红石为火山热液脉状矿床,但它们均为同一VMS成矿系统,形成于430~439 Ma,受控矿因素的差异,造成了成因类型、矿化类型和成矿元素组合的多样性。

关键词：白云母^(40)Ar-^(39)Ar年龄黄铁矿Re-Os年龄 VMS矿床金铜锌黄滩东天山

Dual-Branch-UNet: A Dual-Branch Convolutional Neural Network for Medical Image Segmentation

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Computer Modeling in Engineering & Sciences 2023年第10期137卷 705-716页

作者： Muwei Jian Ronghua Wu Hongyu Chen Lanqi Fu chengdong yang School of Information Science and Technology Linyi UniversityLinyi276000China School of Computer Science and Technology Shandong University of Finance and EconomicsJinan250014China School of Science&Engineering University of LimerickLimerickV94 T9PXIreland

In intelligent perception and diagnosis of medical equipment,the visual and morphological changes in retinal vessels are closely related to the severity of cardiovascular diseases(e.g.,diabetes and hypertension).Intelligent auxiliary diagnosis of these diseases depends on the accuracy of the retinal vascular segmentation *** address this challenge,we design a Dual-Branch-UNet framework,which comprises a Dual-Branch encoder structure for feature extraction based on the traditional U-Net model for medical image *** be more explicit,we utilize a novel parallel encoder made up of various convolutional modules to enhance the encoder portion of the original ***,image features are combined at each layer to produce richer semantic data and the model’s capacity is adjusted to various input ***,in the lower sampling section,we give up pooling and conduct the lower sampling by convolution operation to control step size for information *** also employ an attentionmodule in the decoder stage to filter the image noises so as to lessen the response of irrelevant *** are verified and compared on the DRIVE and ARIA datasets for retinal vessels *** proposed Dual-Branch-UNet has proved to be superior to other five typical state-of-the-art methods.

关键词： Convolutional neural network medical image processing retinal vessel segmentation