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Revolutionizing plasmonic platform via magnetic field-assisted confined ultrafast laser deposition of high-density,uniform,and ultrafine nanoparticle arrays

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International Journal of Extreme Manufacturing 2024年第3期6卷 428-438页

作者： Jin Xu Lingfeng Wang peilin Yang Haoqing jiang Huai Zheng Licong An Xingtao Liu Gary J Cheng School of Industrial Engineering Purdue UniversityWest LafayetteIN 47906United States of America Institute of Technological Sciences Wuhan UniversityWuhanHubei 430072People’s Republic of China

The remarkable capabilities of 2D plasmonic surfaces in controlling optical waves havegarnered significant ***,the challenge of large-scale manufacturing of uniform,well-aligned,and tunable plasmonic surfaces has hindered their *** address this,we present a groundbreaking tunable plasmonic platform design achieved throughmagnetic field(MF)assisted ultrafast laser direct deposition in *** precise control of metal nanoparticles(NPs),with cobalt(Co)serving as the model material,employing an MF,and fine-tuning ultrafast laser parameters,we have effectively converted coarse and non-uniform NPs into densely packed,uniform,and ultrafine NPs(~3 nm).This revolutionary advancement results in the creation of customizable plasmonic‘hot spots,’which play a pivotal role insurface-enhanced Raman spectroscopy(SERS)*** profound impact of this designable plasmonic platform lies in its close association with plasmonic resonance and *** the plasmonic nanostructures resonate with incident light,they generate intense local electromagnetic fields,thus vastly increasing the Raman scattering *** enhancement leads to an outstanding 2–18 fold boost in SERS performance and unparalleled sensing sensitivity down to 10^(-10)***,the plasmonic platform also demonstratesrobustness,retaining its sensing capability even after undergoing 50 cycles of rinsing andre-loading of ***,this work adheres to green manufacturing standards,making it an efficient and environmentally friendly method for customizing plasmonic‘hot spots’inSERS *** study not only achieves the formation of high-density,uniform,and ultrafine NP arrays on a tunable plasmonic platform but also showcases the profound relation betweenplasmonic resonance and energy *** outstanding results observed in SERS sensors further emphasize the immense potential of this technology for energy-relatedapplications,including photocatalysis,ph

关键词： magnetic field manipulation laser deposition metasurface SERS

Semi-Automatic Complex Emotion Categorization and Ontology Construction from Chinese Knowledge

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China Communications 2012年第3期9卷 28-37页

作者： jiang peilin Wang Fei Ren Fuji Xi An Jiao Tong Univ Inst Artificial Intelligence & Robot Xian 710049 Peoples R China Univ Tokushima Grad Sch Adv Technol & Sci Tokushima 7708506 Japan Hefei Univ Technol AIM Hefei 230009 Peoples R China

In order to recognize one's intention from the communication,both the meaning and the emotion are necessary to be interpreted *** until now the study of fine-grained theory of emotion is still full of *** paper analyzes emotion category according to the statistics of Affective Word(AW) hierarchy and describes an emotion ontology from Chinese knowledge resource semi-automatically created for human machine *** emotion hierarchy is called complex ***,over 7 000 AWs have been annotated and their detailed explanations had been collected for an affective lexicon and then the consistent relationships are automatically parsed and a serial of emotion hierarchical structures are built *** than 50 affective categories are extracted by a lexical clustering algorithm and about 5 000 nouns and adjectives and 2 000 verbs are categorized into the predicate *** results have been evaluated to be valid by two metrics.

关键词：知识资源层次分类本体论中国半自动电子运动自动气象站相互作用

Double-ended passivator enables dark-current-suppressed colloidal quantum dot photodiodes for CMOS-integrated infrared imagers

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InfoMat 2024年第1期6卷 108-122页

作者： peilin Liu Shuaicheng Lu Jing Liu Bing Xia Gaoyuan Yang Mo Ke Xuezhi Zhao Junrui Yang Yuxuan Liu Ciyu Ge Guijie Liang Wei Chen Xinzheng Lan Jianbing Zhang Liang Gao jiang Tang Wuhan National Laboratory for Optoelectronics(WNLO)and School of Optical and Electronic Information Huazhong University of Science and TechnologyWuhanthe People's Republic of China Wenzhou Advanced Manufacturing Technology Institute Huazhong University of Science and TechnologyWenzhouthe People's Republic of China School of Physics and Electronic Engineering Hubei University of Arts and ScienceXiangyangthe People's Republic of China School of Integrated Circuits Huazhong University of Science and TechnologyWuhanthe People's Republic of China School of Engineering Physics Shenzhen Technology UniversityShenzhenthe People's Republic of China Optics Valley Laboratory Wuhanthe People's Republic of China Shenzhen Huazhong University of Science and Technology Research Institute Shenzhenthe People's Republic of China

Lead sulfide(PbS)colloidal quantum dot(CQD)photodiodes integrated with silicon-based readout integrated circuits(ROICs)offer a promising solution for the next-generation short-wave infrared(SWIR)imaging *** their potential,large-size CQD photodiodes pose a challenge due to high dark currents resulting from surface states on nonpassivated(100)facets and trap states generated by CQD *** this work,we present a novel approach to address this issue by introducing double-ended ligands that supplementally passivate(100)facets of halidecapped large-size CQDs,leading to suppressed bandtail states and reduced defect *** results demonstrate that the dark current density is highly suppressed by about an order of magnitude to 9.6 nA cm^(2) at -10 mV,which is among the lowest reported for PbS CQD ***,the performance of the photodiodes is exemplary,yielding an external quantum efficiency of 50.8%(which corresponds to a responsivity of 0.532 A W^(-1))and a specific detectivity of 2.5×10^(12) Jones at 1300 *** integrating CQD photodiodes with CMOS ROICs,the CQD imager provides high-resolution(640×512)SWIR imaging for infrared penetration and material discrimination.

关键词： CMOS integration colloidal quantum dots dark current suppression double-ended passivation infrared imager

TRPM2 Mediates Hepatic Ischemia–Reperfusion Injury via Ca^(2+) -Induced Mitochondrial Lipid Peroxidation through Increasing ALOX12 Expression

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Research 2024年第1期2023卷 351-368页

作者： Cheng Zhong Jing Yang Yiyin Zhang Xiaoxiao Fan Yang Fan Ning Hua Duguang Li Shengxi Jin Yirun Li Peng Chen Yongle Chen Xiaobo Cai Yi Zhang Linhua jiang Wei Yang peilin Yu Hui Lin Department of General Surgery Sir Run Run Shaw HospitalSchool of MedicineZhejiang UniversityHangzhouP.R.China Department of Biophysics and Department of Neurology of the Fourth Affiliated Hospital Zhejiang University School of MedicineHangzhou 310000P.R.China Department of Physiology and Pathophysiology and Sino-UK Joint Laboratory of Brain Function and Injury of Henan Province Xinxiang Medical University453003 XinxiangHenanP.R.China School of Biomedical Sciences Faculty of Biological SciencesUniversity of LeedsLS29JT LeedsUK Department of Toxicology and Department of Medical Oncology of Second Affiliated Hospital Zhejiang University School of MedicineHangzhouP.R.China Zhejiang Engineering Research Center of Cognitive Healthcare Sir Run Run Shaw HospitalSchool of MedicineZhejiang UniversityHangzhou 310020P.R.China College of Biomedical Engineering and Instrument Science Zhejiang UniversityHangzhou 310058P.R.China

Hepatic ischemia–reperfusion(IR)injury is a serious clinical problem that complicates liver resection and *** recent advances in understanding of the pathophysiology of hepatic IR injury,effective interventions and therapeutics are still ***,we examined the role of transient receptor potential melastatin 2(TRPM2),a Ca^(2+)-permeable,non-selective cation channel,in mediating hepatic IR *** data showed that TRPM2 deficiency attenuated IR-induced liver dysfunction,inflammation,and cell death in ***,RNA sequencing analysis indicated that TRPM2-induced IR injury occurs via ferroptosis-related ***,as a ferroptosis inducer,(1S,3R)-RSL3 treatment induced mitochondrial dysfunction in hepatocytes and a TRPM2 inhibitor suppressed ***,TRPM2-mediated calcium influx caused mitochondrial calcium accumulation via the mitochondrial Ca^(2+)-selective uniporter and increased the expression level of arachidonate 12-lipoxygenase(ALOX12),which results in mitochondrial lipid peroxidation during hepatic IR ***,hepatic IR injury-induced ferroptosis was obviously relieved by a TRPM2 inhibitor or calcium depletion,both in vitro and in ***,these findings demonstrate a crucial role for TRPM2-mediated ferroptosis in hepatic IR injury via increased Ca^(2+)-induced ALOX12 expression,indicating that pharmacological inhibition of TRPM2 may provide an effective therapeutic strategy for hepatic IR injury-related diseases,such as during liver resection and transplantation.

关键词： TRPM2 Lipid Hepatic

An Improvement of Pedestrian Detection Method with Multiple Resolutions

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Journal of Computer and Communications 2017年第9期5卷 102-116页

作者： Guodong Zhang peilin jiang Kazuyuki Matsumoto Minoru Yoshida Kenji Kita Faculy and School of Engineering Tokushima University Tokushima Japan Xi’an Jiaotong University Xian China

In object detection, detecting an object with 100 pixels is substantially different from detecting an object with 10 pixels. Many object detection algorithms assume that the pedestrian scale is fixed during detection, such as the DPM detector. However, detectors often give rise to different detection effects under the circumstance of different scales. If a detector is used to perform pedestrian detection in different scales, the accuracy of pedestrian detection could be improved. A multi-resolution DPM pedestrian detection algorithm is proposed in this paper. During the stage of model training, a resolution factor is added to a set of hidden variables of a latent SVM model. Then, in the stage of detection, a standard DPM model is used for the high resolution objects and a rigid template is adopted in case of the low resolution objects. In our experiments, we find that in case of low resolution objects the detection accuracy of a standard DPM model is lower than that of a rigid template. In Caltech, the omission ratio of a multi-resolution DPM detector is 52% with 1 false positive per image (1FPPI);and the omission ratio rises to 59% (1FPPI) as far as a standard DPM detector is concerned. In the large-scale sample set of Caltech, the omission ratios given by the multi-resolution and the standard DPM detectors are 18% (1FPPI) and 26% (1FPPI), respectively.

关键词： Deformable Part Model Pedestrian Detection Multi-Resolution Latent SVM

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考虑不同制氢方法的高速公路加氢站布局规划

电力自动化设备 2024年第4期44卷 9-17页

作者：王书征单婷婷赵洋李沛林蒋宇南京工程学院电力工程学院江苏南京211167

针对高速公路加氢设施不完善的问题,提出一种基于改进自适应遗传算法的高速公路加氢站布局方法。根据高速公路特性及电子收费记录,建立高速公路网络和加氢判断模型。基于多层次-模糊综合评价方法,从经济性、环保性以及安全性角度,提供... 详细信息

针对高速公路加氢设施不完善的问题,提出一种基于改进自适应遗传算法的高速公路加氢站布局方法。根据高速公路特性及电子收费记录,建立高速公路网络和加氢判断模型。基于多层次-模糊综合评价方法,从经济性、环保性以及安全性角度,提供适合高速公路加氢站的制氢方法和制氢地点的组合。再结合分布式光伏的投入,以经济效益最优为目标,构建高速公路站外和站内制氢2组目标函数,利用改进自适应遗传算法分别进行优化布局和容量配置。以沈海高速(浙江段)作为研究对象进行分析,提供了不同制氢方法下加氢站布局方案及相关设施的容量配置,算例结果与模糊综合评价结果相互验证了模型的有效性。

关键词：氢燃料电池汽车加氢站规划高速公路模糊综合评价自适应遗传算法

DNA methylation clocks for estimating biological age in Chinese cohorts

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Protein & Cell 2024年第8期15卷 575-593页

作者： Zikai Zheng Jiaming Li Tianzi Liu Yanling Fan Qiao-Cheng Zhai Muzhao Xiong Qiao-Ran Wang Xiaoyan Sun Qi-Wen Zheng Shanshan Che Beier jiang Quan Zheng Cui Wang Lixiao Liu Jiale Ping Si Wang Dan-Dan Gao Jinlin Ye Kuan Yang Yuesheng Zuo Shuai Ma Yun-GuiYang Jig Qu Feng Zhang peilin Jia Guang-Hui Liu Weiqi Zhang CAS Key Laboratory of Genomic and Precision Medicine Beijing Institute of GenomicsChinese Academy of Sciences and China National Center for BioinformationBeijing 100101China University of Chinese Academy of Sciences Beijing 100049China CAS Key Laboratory of Computational Biology Shanghai Institute of Nutrition and HealthChinese Academy of SciencesShanghai 200031China Division of Orthopaedics Quzhou Affliated Hospital of Wenzhou Medical UniversityQuzhou 324000China The Joint Innovation Center for Engineering in Medicine Quzhou Affliated Hospital of Wenzhou Medical UniversityQuzhou 324000China Advanced Innovation Center for Human Brain Protection and National Clinical Research Center for Geriatric DisordersXuanwu Hospital Capital Medical UniversityBeijing 100053China Aging Translational Medicine Center Intemational Center for Aging and CancerXuanwu HospitalCapital Medical UniversityBeijing 100053China Aging Biomarker Consortium Beijing 100101China State Key Laboratory of Membrane Biology Institute of ZoologyChinese Academy of SciencesBeijing 100101China Key Laboratory of Organ Regeneration and Reconstruction Institute of ZoologyChinese Academy of SciencesBeijing 100101China nstitute for Stem Cell and Regeneration Chinese Academy of SciencesBeijing 100101China Beijing Institute for Stem Cell and Regenerative Medicine Beijing 100101China State Key Laboratory of Stem Cell and Reproductive Biology Institute of ZoologyChinese Academy of SciencesBeijing 100101China National Genomics Data Center Beijing Institute of GenomicsChinese Academy of Sciences and China National Center for BioinformationBeijing 100101China

Epigenetic clocks are accurate predictors of human chronological age based on the analysis of DNA methylation(DNAm)at specific CpG ***,a systematic comparison between DNA methylation data and other omics datasets has not yet been ***,available DNAm age predictors are based on datasets with limited ethnic *** address these knowledge gaps,we generated and analyzed DNA methylation datasets from two independent Chinese cohorts,revealing age-related DNAm ***,a DNA methylation aging clock(iCAS-DNAmAge)and a group of DNAm-based multi-modal clocks for Chinese individuals were developed,with most of them demonstrating strong predictive capabilities for chronological *** clocks were further employed to predict factors influencing aging *** DNAm aging clock,derived from multi-modal aging features(compositeAge-DNAmAge),exhibited a close association with multi-omics changes,lifestyles,and disease status,underscoring its robust potential for precise biological age *** findings offer novel insights into the regulatory mechanism of age-related DNAm changes and extend the application of the DNAm clock for measuring biological age and aging pace,providing the basis for evaluating aging intervention strategies.

关键词： DNA methylation aging clock aging age prediction

基于紫外光刻的双轴张应变Ge/SiGe多量子阱电吸收调制器

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光电子．激光 2022年第11期33卷 1121-1126页

作者：黄强高建峰黄楚坤江佩璘孙军强余长亮华中科技大学武汉光电国家研究中心湖北武汉430074 邵阳学院电气工程学院多电源地区电网运行与控制湖南省重点实验室湖南邵阳422000 武汉飞思灵微电子技术有限公司湖北武汉430074

采用紫外光刻工艺(ultraviolet lithography technique,UVL),在互补金属氧化物半导体(complementary metal oxide semiconductor,CMOS)兼容的硅基平台上制作了基于悬空微桥结构在Ge/SiGe多量子阱材料中引入双轴张应变的低偏振相关电吸... 详细信息

采用紫外光刻工艺(ultraviolet lithography technique,UVL),在互补金属氧化物半导体(complementary metal oxide semiconductor,CMOS)兼容的硅基平台上制作了基于悬空微桥结构在Ge/SiGe多量子阱材料中引入双轴张应变的低偏振相关电吸收调制器。利用拉曼光谱测试了器件引入双轴张应变的大小,并对器件在横电(transverse electric,TE)偏振和横磁(transverse magnetic,TM)偏振下的光电流响应、调制消光比和高频响应等性能进行了测试。器件的低偏振相关消光比在0 V/4 V工作电压下可达5.8 dB,3 dB调制带宽在4 V反向偏置电压时为8.3 GHz。与电子束光刻工艺(electron beam lithography technique,EBL)相比,采用UVL制作的器件在调制消光比、高频响应带宽等性能上略差一点,但具有曝光时间短、成本低和可大批量生产等优势,应用前景广阔。

关键词：紫外光刻工艺(UVL) Ge/SiGe多量子阱双轴张应变低偏振相关电吸收调制器

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应用于锗硅材料的高效耦合光栅研究

激光与光电子学进展 2022年第19期59卷 210-216页

作者：黄强张意江佩璘余长亮石浩天黄楚坤孙军强华中科技大学武汉光电国家研究中心湖北武汉430074 邵阳学院电气工程学院多电源地区电网运行与控制湖南省重点实验室湖南邵阳422000 武汉飞思灵微电子技术有限公司湖北武汉430040

为实现单模光纤与锗硅材料器件的垂直耦合并提高耦合效率,设计了一种锗硅光栅耦合器。通过在硅衬底上增加金属反射层来提高光栅的耦合效率,并利用时域有限差分法仿真软件对锗硅光栅的刻蚀深度、刻蚀槽宽和光栅周期等结构进行了优化。然... 详细信息

为实现单模光纤与锗硅材料器件的垂直耦合并提高耦合效率,设计了一种锗硅光栅耦合器。通过在硅衬底上增加金属反射层来提高光栅的耦合效率,并利用时域有限差分法仿真软件对锗硅光栅的刻蚀深度、刻蚀槽宽和光栅周期等结构进行了优化。然后,分析了有无金属反射层时的功率和电场分布情况,计算了光栅耦合效率。仿真结果表明,在最佳工作波长1466 nm处,有金属反射层均匀光栅得到的光栅最大耦合效率为−1.34 dB,相比无金属反射层光栅,最大耦合效率提高了9.4 dB,并且光在波导中的定向性得到了明显的改善。另外,为进一步提高耦合效率,在均匀光栅的基础上仿真设计了两步变迹光栅,相比均匀光栅最大耦合效率提高了0.55 dB。同时,对耦合光栅中的金属层厚度、锗硅材料折射率和光栅尺寸三个方面行了工艺容差分析,结果表明,所设计的耦合光栅对工艺偏差具有较高的容忍度。最后,制作了锗硅耦合光栅器件,测试结果表明,在工作波长1465 nm处,获得了−2.7 dB的最大耦合效率。

关键词：集成光学锗硅材料垂直耦合光栅耦合器金属反射层