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基于波段选择估计PSF的高光谱图像运动模糊盲校正方法

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红外与毫米波学报 2016年第6期35卷 715-722页

作者：南一冰高昆倪国强北京理工大学光电学院光电成像技术与系统教育部重点实验室北京100081

结合双三次插值处理和基于方向滤波的图像维去模糊算法,提出了基于波段选择估计图像点扩散函数的高光谱图像盲校正方法,以降低光谱维冗余信息对复原精度的影响.校正实验结果表明,提出的方法能够对不同卫星振动模式引入的运动模糊进行有... 详细信息

结合双三次插值处理和基于方向滤波的图像维去模糊算法,提出了基于波段选择估计图像点扩散函数的高光谱图像盲校正方法,以降低光谱维冗余信息对复原精度的影响.校正实验结果表明,提出的方法能够对不同卫星振动模式引入的运动模糊进行有效校正,能够同时提高高光谱图像空间维质量、减小光谱维失真.

关键词：卫星姿态高光谱成像盲校正波段选择

Tandem catalysis of Cu/Ni multi-sites promotes oxygen reduction reaction

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Science China Materials 2024年第9期67卷 2934-2940页

作者： Bin-Bin Feng Ke-Ke Chang Wan-Feng Xiong Duan-Hui Si Shui-Ying gao Hong-Fang Li Rong Cao College of Chemistry and Materials Science Fujian Normal UniversityFuzhou350007China State Key Laboratory of Structural Chemistry Fujian Institute of Research on the Structure of MatterChinese Academy of SciencesFuzhou350002China Fujian Science&Technology Innovation Laboratory for Optoelectronic Information of China Fuzhou350108China University of Chinese Academy of Sciences Beijing100049China

The special electronic characteristics and high atom usage efficiency of metal-nitrogen-carbon(M-N-C)materials have made them extremely attractive for oxygen reduction reactions(ORRs).However,it is inevitable that hydrogen peroxide(H_(2)O_(2))will be formed via the two-electron pathway in ***,the Cu nanoparticles(NPs)have been encapsulated into Ni doped hollow mesoporous carbon spheres(Ni-HMCS)to reduce the generation of H_(2)O_(2)in *** tests confirm that the introduction of Cu NPs improves the ORR performance *** obtained Cu/Ni-HMCS exhibits a half-wave potential of 0.82 V *** hydrogen electrode and a limited current density of 5.5 mA cm^(-2),which is comparable with the commercial Pt/***,Cu/Ni-HMCS has been used in Zn-air battery,demonstrating a high power density of 161 mW cm^(-2)and a long-term recharge capability(50 h at 5 mA cm^(-2)).The theoretical calculation proposes a tandem catalysis pathway for Cu/Ni multi-sites catalysis,that is,H_(2)O_(2)released from the Ni-N_(4)and Cu-N_(4)sites migrates to the Cu(111)face,on which the captive H_(2)O_(2)is further reduced to H_(2)*** work demonstrates an interesting tandem catalytic pathway of dual-metal multi-sites for ORR,which provides an insight into the development of effective fuel cell electrocatalysts.

关键词： oxygen reduction reaction tandem catalysis pathway dual-metal multi-sites Cu nanoparticles

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三谈MS6001燃机燃用重油的经验和问题

燃气轮机技术 2000年第2期13卷 24-28页

作者：高南兴福州明达电厂福建长乐350200

本文摘要介绍明达电厂二台 PG65 41B燃机在 1999年内燃用 180 # 重油方面的经验和问题 ,涉及水洗、抑钒剂、点火等方面。

关键词：燃气轮机重油运行

造血干细胞移植后BK病毒相关出血性膀胱炎研究进展

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中国实验血液学杂志 2018年第5期26卷 1565-1568页

作者：杨楠高春记解放军医学院解放军总医院血液科北京100853

造血干细胞移植后迟发性出血性膀胱炎多由BK病毒再激活引起,是造血干细胞移植后最常见的并发症之一,可迁延不愈,增加患者的痛苦,延长住院时间,甚至威胁患者的生命。然而,目前临床对造血干细胞移植后BK病毒感染缺乏足够的重视,在BK病毒... 详细信息

造血干细胞移植后迟发性出血性膀胱炎多由BK病毒再激活引起,是造血干细胞移植后最常见的并发症之一,可迁延不愈,增加患者的痛苦,延长住院时间,甚至威胁患者的生命。然而,目前临床对造血干细胞移植后BK病毒感染缺乏足够的重视,在BK病毒监测以及BK病毒相关出血性膀胱炎的治疗上也缺乏有效的手段。近年来,造血干细胞移植后BK病毒DNA监测在BK病毒相关出血性膀胱炎中表现出重要作用。在治疗上以西多福韦为代表的治疗方法也日益受到肯定,同时病毒特异性淋巴细胞治疗等新方法也不断涌现。本文主要就近年来造血干细胞移植后BK病毒相关出血性膀胱炎在致病机制、治疗手段、病毒监测等方面的最新研究进展作一综述。

关键词：出血性膀胱炎造血干细胞移植 BK病毒

第十二届全国(中国)空间轨道设计竞赛:地月空间助力火星移民和近地小行星探测

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力学与实践 2024年第1期46卷 222-235页

作者：何胜茂彭超高扬中国科学院空间应用工程与技术中心北京100094 中国科学院太空应用重点实验室北京100094 中国科学院大学航空宇航学院北京101408

本文首先简要介绍了全国(中国)空间轨道设计竞赛的发展概况和第十二届全国(中国)空间轨道设计竞赛题目的研究背景。然后介绍并解读了“可重复使用地火运输空间站火星移民”“可重复使用探测器飞越探测近地小行星”两组竞赛题目,回顾了... 详细信息

本文首先简要介绍了全国(中国)空间轨道设计竞赛的发展概况和第十二届全国(中国)空间轨道设计竞赛题目的研究背景。然后介绍并解读了“可重复使用地火运输空间站火星移民”“可重复使用探测器飞越探测近地小行星”两组竞赛题目,回顾了竞赛组织历程,分析了竞赛最终提交结果。最后简要陈述了赛后交流和研讨情况以及总结和展望。此外,文中各章节对本竞赛区别于其他学科竞赛的若干特色也进行了简要陈述。

关键词：地月空间火星移民小行星探测轨道设计竞赛可重复使用航天器

An improved simple model for α decay half-lives

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Chinese Physics C 2024年第7期48卷 131-159页

作者：朱小彦骆松高玮亓林静李明李小华林文斌 School of Nuclear Science and Technology University of South ChinaHengyang 421001China School of Physical Science and Technology Southwest Jiaotong UniversityChengdu 610031China School of Mathematics and Physics University of South ChinaHengyang 421001China Cooperative Innovation Center for Nuclear Fuel Cycle Technology&Equipment University of South ChinaHengyang 421001China National Exemplary Base for International Sci&Tech.Collaboration of Nuclear Energy and Nuclear Safety University of South ChinaHengyang 421001China

In this paper,using theαparticle preformation probabilities Pαfrom Xu et al.[Xu and Ren,***.A 760,303(2005)],which were extracted by fitting experimental half-lives ofαdecay,based on a phenomenological harmonic oscillator potential model(HOPM)[Bayrak,J Phys G 47,025102(2020)],refitting 178αdecay half-lives of even-even nuclei obtained from the latest nuclear property table NUBASE2020,we obtain the only one adjustable parameter V0-162.6 MeV in the HOPM,i.e.,the depth of nuclear *** corresponding root-mean-square(rms)deviation isσ-***,to consider the contribution of centrifugal potential to unfavoredαdecay half-lives,adding a new term■(d and l are the adjustable parameter and orbital angular momentum carried away by emittedαparticle)to the logarithmic form of favoredαdecay half-lives under the HOPM framework,we propose an improved simple model(ISM)for calculating favored and unfavoredαdecay *** the experimental half-lives of 205 unfavoredαdecay,we obtain *** ISM is used to calculate the unfavoredαdecay half-lives of 128 odd-A and 77 odd-odd *** results improve by 54.2%and 53.6%,respectively,compared with *** addition,we extend the ISM to predict theαdecay half-lives of 144 nuclei with Z=117,118,119,and *** comparison,the improved model with eight parameters(DUR)proposed by Deng et al.[Deng,***.C 101,034307(2020)]and the modified universal decay law(MUDL)proposed by Soylu et al.[Soylu,***.A 1013,122221(2021)]are also *** predictions of these models and/or formulas are generally consistent with each other.

关键词： harmonic oscillator potential αdecay half-lives centrifugal potential

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铁代谢在衰老相关疾病中的研究进展

中华老年医学杂志 2024年第3期43卷 401-405页

作者：贾恺悦高伟鲁翔南京医科大学附属逸夫医院老年医学科南京211166 东南大学附属中大医院老年医学科南京211189

随着我国人口老龄化进程的加快,人口老龄化问题日趋严重,对衰老相关疾病的发病机制研究已成为现代老年医学研究领域的热点。铁是人体必需的微量元素之一,对维持机体正常的生理功能十分重要。多项研究表明,铁代谢异常与多种衰老性疾病的... 详细信息

随着我国人口老龄化进程的加快,人口老龄化问题日趋严重,对衰老相关疾病的发病机制研究已成为现代老年医学研究领域的热点。铁是人体必需的微量元素之一,对维持机体正常的生理功能十分重要。多项研究表明,铁代谢异常与多种衰老性疾病的发生和发展有关,本文简要综述常见的衰老相关疾病中铁代谢异常的表现及可能的机制,为衰老相关疾病的诊断和治疗提供理论基础。

关键词：衰老铁代谢障碍铁

High-performance SiO_(x)/MgO_(x)electron-selective contacts for crystalline silicon solar cells

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Science China Materials 2024年第9期67卷 2866-2872页

作者： Kun Li Kun gao Xinyu Wang Xinliang Lou Dacheng Xu Chunfang Xing Wenhao Li Haicheng Li Xinbo Yang College of Energy Soochow Institute for Energy and Materials InnovationS(SIEMIS)Soochow UniversitySuzhou215006China Institute of Functional nano&Soft Materials Soochow UniversitySuzhou215123China

High carrier recombination loss at the metal and silicon contact regions is one of the dominant factors constraining the power conversion efficiency(PCE)of crystalline silicon(c-Si)solar *** compound-based carrier-selective contacts are being intensively developed to address this *** this work,we present a high-performance electron-selective SiO_(x)/MgO_(x)contact for c-Si solar *** SiO_(x)/MgO_(x)stack is prepared by thermally-grown SiO_(x)(∼0.7 nm)and thermally-evaporated MgO_(x)(~1.0 nm).The electron selectivity of SiO_(x)/MgO_(x)contact is investigated by measuring the surface passivation and the contact resistivity(ρ_(c))on the c-Si *** results demonstrate that optimized SiO_(x)/MgO_(x)contact displays a very lowρ_(c)(3.4 mΩcm^(2))and a good surface passivation on an n-type c-Si surface simultaneously.A high PCE of 21.1%is achieved on an n-type c-Si solar cell featuring a full-area SiO_(x)/MgO_(x)rear contact.

关键词： crystalline silicon solar cell electron-selective contact magnesium oxide

An improved effective liquid drop model for cluster radioactivity

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Communications in Theoretical Physics 2024年第3期76卷 127-137页

作者：崔建坡邢凤竹高永浩齐立倩王艳召顾建中 Department of Mathematics and Physics Shijiazhuang Tiedao UniversityShijiazhuang 050043China Institute of Applied Physics Shijiazhuang Tiedao UniversityShijiazhuang 050043China Hebei Research Center of the Basic Discipline Engineering Mechanics Shijiazhuang Tiedao UniversityShijiazhuang 050043China Hebei Key Laboratory of Physics and Energy Technology North China Electric Power UniversityBaoding 071000China China Institute of Atomic Energy P.O.Box 275(10)Beijing 102413China

The effective liquid drop model(ELDM)is improved by introducing an accurate nuclear charge radius formula and an analytic expression for assaulting *** the improved effective liquid drop model(IMELDM),the experimental cluster radioactivity half-lives of the trans-lead region are *** is shown that the accuracy of the IMELDM is improved compared with that of the *** last,the cluster radioactivity half-lives that are experimentally unavailable for the trans-lead nuclei are predicted by the *** predictions may be useful for searching for new candidates for cluster radioactivity in future experiments.

关键词： cluster radioactivity nuclear charge radius assaulting frequency effective liquid drop model