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MAUN:Memory-Augmented Deep Unfolding Network for Hyperspectral Image Reconstruction

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IEEE/CAA Journal of Automatica Sinica 2024年第5期11卷 1139-1150页

作者： Qian Hu Jiayi Ma Yuan gao Junjun Jiang yixuan Yuan Electronic Information School Wuhan UniversityWuhan 430072China School of Computer Science and Technology Harbin Institute of TechnologyHarbin 150001China Department of Electronic Engineering Chinese University of Hong KongHong Kong 999077China

Spectral compressive imaging has emerged as a powerful technique to collect the 3D spectral information as 2D *** algorithm for restoring the original 3D hyperspectral images(HSIs)from compressive measurements is pivotal in the imaging *** approaches painstakingly designed networks to directly map compressive measurements to HSIs,resulting in the lack of interpretability without exploiting the imaging *** some recent works have introduced the deep unfolding framework for explainable reconstruction,the performance of these methods is still limited by the weak information transmission between iterative *** this paper,we propose a Memory-Augmented deep Unfolding Network,termed MAUN,for explainable and accurate HSI ***,MAUN implements a novel CNN scheme to facilitate a better extrapolation step of the fast iterative shrinkage-thresholding algorithm,introducing an extra momentum incorporation step for each iteration to alleviate the information ***,to exploit the high correlation of intermediate images from neighboring iterations,we customize a cross-stage transformer(CSFormer)as the deep denoiser to simultaneously capture self-similarity from both in-stage and cross-stage features,which is the first attempt to model the long-distance dependencies between iteration *** experiments demonstrate that the proposed MAUN is superior to other state-of-the-art methods both visually and *** code is publicly available at https://***/HuQ1an/MAUN.

关键词： Deep folding iteration

血清学检测在识别新型冠状病毒感染和重复感染中的应用

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中国疫苗和免疫 2024年第2期30卷 252-257页

作者：郭旭程祖瑶高艺轩宋渝丹李军宏王亚敏郑徽马超冯子健传染病溯源预警与智能决策全国重点实验室中国疾病预防控制中心北京102206 中国疾病预防控制中心免疫规划中心北京100050 国家卫生健康委医学病毒和病毒病重点实验室中国疾病预防控制中心病毒病预防控制所北京102206 中华预防医学会北京100062

新型冠状病毒已感染了全世界绝大多数人。新型冠状病毒感染的无症状比例较高,无症状者往往不就医,因而目前基于流感样病例的疾病监测和流行病学研究往往低估新型冠状病毒感染率。核酸检测和抗原检测用于识别近期的新型冠状病毒感染,且... 详细信息

新型冠状病毒已感染了全世界绝大多数人。新型冠状病毒感染的无症状比例较高,无症状者往往不就医,因而目前基于流感样病例的疾病监测和流行病学研究往往低估新型冠状病毒感染率。核酸检测和抗原检测用于识别近期的新型冠状病毒感染,且由于灵敏度的限制可能发生漏诊。血清学检测在流行病学研究中常用于识别新型冠状病毒感染和重复感染,但尚无公认的检测方法和判断标准。本文总结了目前真实世界研究中常用于判断新型冠状病毒感染和重复感染的方法,为未来有关研究设计和实施提供依据。

关键词：新型冠状病毒血清学检测自然感染重复感染

On-surface synthesis and edge states of NBN-doped zigzag graphene nanoribbons

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Nano Research 2023年第7期16卷 10436-10442页

作者： Xiao Chang Li Huang yixuan gao Yubin Fu Ji Ma Huan Yang Junzhi Liu Xiaoshuai Fu Xiao Lin Xinliang Feng Shixuan Du Hong-Jun gao University of Chinese Academy of Sciences Beijing 100190China Beijing National Center for Condensed Matter Physics Institute of PhysicsChinese Academy of SciencesBeijing 100190China Center for Advancing Electronics Dresden(CfAED)and Faculty of Chemistry and Food Chemistry Technische Universität DresdenDresden D-01069Germany Max Planck Institute of Microstructure Physics Weinberg 2Halle 06120Germany Department of Chemistry State Key Laboratory of Synthetic ChemistryThe University of Hong KongHong Kong 999077China Songshan Lake Materials Laboratory Dongguan 523808China

Zigzag graphene nanoribbons(ZGNRs)with spin-polarized edge states have potential applications in carbon-based *** electronic structure of ZGNRs can be effectively tuned by different widths or dopants,which requires delicately designed ***,we report the successful synthesis of ZGNR with a width of eight carbon zigzag lines and nitrogen-boronnitrogen(NBN)motifs decorated along the zigzag edges(NBN-8-ZGNR)on Au(111)surface,which starts from a specially designed U-shaped monomer with preinstalled NBN units at the zigzag ***-bond-resolved non-contact atomic force microscopy(nc-AFM)imaging confirms the zigzag-terminated edges and the existence of NBN *** electronic states distributed along the zigzag edges have been revealed after a silicon-layer intercalation at the interface of NBN-8-ZGNR and Au(111).Our work enriches the ZGNR family with a new dopant and larger width,which provides more candidates for future carbonbased nanoelectronic and spintronic applications.

关键词： zigzag graphene nanoribbons nitrogen-boron-nitrogen(NBN)dopant edge states scanning tunneling microscopy(STM) non-contact atomic force microscopy(nc-AFM) density functional theory(DFT)calculations

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铁死亡在心房颤动中的研究进展

临床心血管病杂志 2024年第7期40卷 589-592页

作者：高艺轩刘围围王艳赵然尊石蓓遵义医科大学附属医院心内科贵州遵义563000

心房颤动(房颤)是一种常见的快速性心律失常,能显著增加患者的死亡、卒中、心力衰竭、认知功能障碍和痴呆等风险。目前房颤的治疗主要侧重于抗凝以预防栓塞事件和进行节律控制以改善症状,然而疗效有限。近年来,越来越多的研究证实铁死... 详细信息

心房颤动(房颤)是一种常见的快速性心律失常,能显著增加患者的死亡、卒中、心力衰竭、认知功能障碍和痴呆等风险。目前房颤的治疗主要侧重于抗凝以预防栓塞事件和进行节律控制以改善症状,然而疗效有限。近年来,越来越多的研究证实铁死亡能够参与房颤的发生并促进其进展。本文将围绕铁死亡与房颤之间的关系予以综述,以期为房颤发病机制的研究提供新的思路。

关键词：心房颤动铁死亡氧化应激纤维化离子代谢

Alginate oligosaccharide-mediated butyrate-HIF-1α axis improves skin aging in mice

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Journal of Pharmaceutical Analysis 2024年第5期14卷 678-692页

作者： Ting gao yixuan Li Xiaoyu Wang Fazheng Ren Department of Nutrition and Health College of Veterinary MedicineChina Agricultural UniversityBeijing100083China

The“gut-skin”axis has been proved and is considered as a novel therapy for the prevention of skin *** antioxidant efficacy of oligomannonic acid(MAOS)makes it an intriguing target for use to improve skin *** present study further explored whereby MAOS-mediated gut-skin axis balance prevented skin aging in *** data indicated the skin aging phenotypes,oxidative stress,skin mitochondrial dysfunction,and intestinal dysbiosis(especially the butyrate and HIF-1a levels decreased)in aging ***,fecal microbiota transplantation(FMT)from aging mice rebuild the aging-like ***,we demonstrated MAOS-mediated colonic butyrate-HIF-1a axis homeostasis promoted the entry of butyrate into the skin,upregulated mitophagy level and ultimately improving skin aging via HDAC3/PHD/HIF-1a/mitophagy loop in skin of ***,our study offered a better insights of the effectiveness of alginate oligosaccharides(AOS),promised to become a personalized targeted therapeutic agents,on gut-skin axis disorder inducing skin aging.

关键词： Alginate oligosaccharide Skin aging Butyrate HIF-1a Mitophagy

NBN-doped nanographene embedded with five-and seven-membered rings on Au(111)surface

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Chinese Physics B 2021年第5期30卷 165-169页

作者： Huan Yang Yun Cao yixuan gao Yubin Fu Li Huang Junzhi Liu Xinliang Feng Shixuan Du d Hong-Jun gao Institute of Physics and University of Chinese Academy of Sciences Beijing 100190China Center for Advancing Electronics Dresden(cfaed)&Faculty of Chemistry and Food Chemistry Technische Universität Dresden01062 DresdenGermany Department of Chemistry and State Key Laboratory of Synthetic Chemistry The University of Hong KongHong KongChina CAS Center for Excellence in Topological Quantum Computation University of Chinese Academy of SciencesBeijing 100190China

Nanographenes(NGs)can be embedded with predesigned dopants or nonhexagonal rings to tailor the electronic properties and provide ideal platforms to study the unique physical and chemical ***,we report the on-surface synthesis of NBN-doped NG embedded with five-and seven-membered rings(NBN-575-NG)on Au(111)from a oligophenylene precursor preinstalled with a NBN unit and a heptagonal *** tunneling microscopy and non-contact atomic force microscopy images elucidate the intramolecular cyclodehydrogenation and the existence of the five-and seven-membered *** tunneling spectroscopy spectra reveal that the NBN-575-NG is a semiconductor,which agrees with the density functional theory calculation results on a freestanding NBN-575-NG with the same *** work provides a feasible approach for the on-surface synthesis of novel NGs containing non-hexagonal rings.

关键词： on-surface synthesis nanographene nonhexagonal rings scanning tunneling microscopy density functional theory

硫磺菌乙酸乙酯提取物抗氧化活性及其成分分析

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食品工业 2024年第3期45卷 17-20页

作者：朱新婷李欣悦余雪颖陈永澎高逸萱魏奇宁德师范学院海洋学院宁德352100 福建省科技厅产学研合作示范基地宁德352100 闽东特色生物资源福建省高校工程研究中心宁德352100

以硫磺菌为原料制备硫磺菌乙酸乙酯提取物,测定提取物的多糖、多酚、黄酮和三萜含量,并评估其抗氧化活性。结果表明,硫磺菌乙酸乙酯提取物中含有多糖、多酚、黄酮、三萜,含量分别为76.27±3.29,19.15±0.66,9.12±0.41和32.41±4.03 mg... 详细信息

以硫磺菌为原料制备硫磺菌乙酸乙酯提取物,测定提取物的多糖、多酚、黄酮和三萜含量,并评估其抗氧化活性。结果表明,硫磺菌乙酸乙酯提取物中含有多糖、多酚、黄酮、三萜,含量分别为76.27±3.29,19.15±0.66,9.12±0.41和32.41±4.03 mg/mL。硫磺菌乙酸乙酯提取物对DPPH、ABTS、羟自由基和超氧阴离子自由基均有较强的清除能力并且具有一定的还原能力。

关键词：硫磺菌乙酸乙酯抗氧化活性成分分析

Electronic structures of vacancies in Co3Sn2S2

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Chinese Physics B 2021年第7期30卷 439-445页

作者：高于翔金鑫高艺璇张余洋杜世萱 Institute of Physics and University of Chinese Academy of Sciences Chinese Academy of Sciences CAS Center for Excellence in Topological Quantum Computation University of Chinese Academy of Sciences Beijing National Center for Condensed Matter Physics Songshan Lake Materials Laboratory

Co3Sn2S2has attracted a lot of attention for its multiple novel physical properties, including topological nontrivial surface states, anomalous Hall effect, and anomalous Nernst effect. Vacancies, which play important roles in functional materials, have attracted increasing research attention. In this paper, by using density functional theory calculations, we first obtain band structures and magnetic moments of Co3Sn2S2with exchange–correlation functionals at different levels. It is found that the generalized gradient approximation gives the positions of Weyl points consistent with experiments in bulk Co3Sn2S2. We then investigate the electronic structures of defects on surfaces with S and Sn terminations which have been observed in experiments. The results show that the single sulfur vacancy on the S-terminated surface introduces localized bond states inside the bandgap near the Fermi level. For di-and tri-sulfur vacancies, the localized defect states hybridize with neighboring ones, forming bonding states as well as anti-bonding states. The Sn vacancy on the Sn-terminated surface also introduces localized bond states, which are merged with the valence bands. These results provide a reference for future experimental investigations of vacancies in Co3Sn2S2.

关键词： first-principle calculations vacancies localized bound states orbital hybridization

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柳叶蜡梅醇提物酚类成分及其抗氧化活性研究

食品工业 2024年第2期45卷 147-151页

作者：何纪元邓柳鸿李欣悦高逸萱刘盛荣魏奇宁德师范学院生命科学学院宁德352100 福建省科技厅产学研合作示范基地宁德352100 闽东特色生物资源福建省高校工程研究中心宁德352100

采用超高效液相色谱-串联质谱法(UPLC-MS/MS)测定酚类成分,并研究柳叶蜡梅醇提物的体外抗氧化活性。结果表明,柳叶蜡梅醇提物的总酚含量为169.18±2.49 mg/g。柳叶蜡梅醇提物的酚类成分以表儿茶素、杨梅黄素、儿茶素、芦丁和绿原酸含量... 详细信息

采用超高效液相色谱-串联质谱法(UPLC-MS/MS)测定酚类成分,并研究柳叶蜡梅醇提物的体外抗氧化活性。结果表明,柳叶蜡梅醇提物的总酚含量为169.18±2.49 mg/g。柳叶蜡梅醇提物的酚类成分以表儿茶素、杨梅黄素、儿茶素、芦丁和绿原酸含量较高。柳叶蜡梅醇提物对2,2-二氮-双(3-乙基苯并噻唑-6-磺酸)铵盐(ABTS)自由基、羟自由基、1,1-二苯基苦基苯肼(DPPH)自由基和超氧阴离子自由基的半数清除浓度(IC_(50))分别是8.98μg/m L,16.21 mg/mL,46.10μg/mL和2.85 mg/mL,并且具有一定还原能力。柳叶蜡梅是开发天然食品抗氧化剂的良好来源。

关键词：柳叶蜡梅提取抗氧化作用