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Image Enhancement via Associated Perturbation Removal and Texture Reconstruction Learning

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IEEE/CAA Journal of Automatica Sinica 2024年第11期11卷 2253-2269页

作者： Kui Jiang Ruoxi Wang Yi Xiao Junjun Jiang xin Xu Tao Lu IEEE the School of Computer Science and Technology Harbin Institute of Technology Zhengzhou Research Institute Harbin Institute of Technology the School of Artificial Intelligence Jianghan University the School of Geodesy and Geomatics Wuhan University the Hubei Province Key Laboratory of Intelligent Information Processing and Real-Time Industrial System Wuhan University of Science and Technology the School of Computer Science and Engineering and also with the Hubei Province Key Laboratory of Intelligent Robot Wuhan Institute of Technology

Degradation under challenging conditions such as rain, haze, and low light not only diminishes content visibility, but also results in additional degradation side effects, including detail occlusion and color distortion. However, current technologies have barely explored the correlation between perturbation removal and background restoration, consequently struggling to generate high-naturalness content in challenging scenarios. In this paper, we rethink the image enhancement task from the perspective of joint optimization: Perturbation removal and texture reconstruction. To this end, we advise an efficient yet effective image enhancement model, termed the perturbation-guided texture reconstruction network(PerTeRNet). It contains two subnetworks designed for the perturbation elimination and texture reconstruction tasks, respectively. To facilitate texture recovery,we develop a novel perturbation-guided texture enhancement module(PerTEM) to connect these two tasks, where informative background features are extracted from the input with the guidance of predicted perturbation priors. To alleviate the learning burden and computational cost, we suggest performing perturbation removal in a sub-space and exploiting super-resolution to infer high-frequency background details. Our PerTeRNet has demonstrated significant superiority over typical methods in both quantitative and qualitative measures, as evidenced by extensive experimental results on popular image enhancement and joint detection tasks. The source code is available at https://***/kuijiang94/PerTeRNet.

关键词： Association learning attention mechanism image enhancement perturbation modeling

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多发性硬化灰质损伤的相关研究进展

神经疾病与精神卫生 2009年第1期9卷 84-86页

作者：徐新蕾(综述) 凌振芬(审校) 上海交通大学附属第一人民医院神经内科 200080

多发性硬化（MS）长期以来被认为是累及中枢神经系统白质的脱髓鞘疾病。但近来也有累及灰质及周围神经的报道。其临床表现多样，病因学及发病机制较复杂，尚未完全明确，目前，影像学已成为检测灰质病变的首选方法。本文就MS灰质损伤的... 详细信息

多发性硬化（MS）长期以来被认为是累及中枢神经系统白质的脱髓鞘疾病。但近来也有累及灰质及周围神经的报道。其临床表现多样，病因学及发病机制较复杂，尚未完全明确，目前，影像学已成为检测灰质病变的首选方法。本文就MS灰质损伤的研究现状进行综述。

关键词：脱髓鞘自身免疫疾病多发性硬化灰质

Sedimentary environment shift and organic matter enrichment mechanism in response to volcanic ash influence: A case study of the Permian Lucaogou Formation, Santanghu Basin,NW China

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Journal of Palaeogeography 2024年第4期13卷 793-822页

作者： Miao Yu Gang Gao Miao Liu Hui Liang Ji-Lun Kang Xiong-Fei Xu xin-Ying Zhao College of Geosciences China University of Petroleum (Beijing) National Key Laboratory of Petroleum Resources and Engineering China University of Petroleum (Beijing) Petro China Tuha Oilfield Company

The second member of the Lucaogou Formation （P2l2） in the Tiaohu and Malang Sags of the Santanghu Basin （study area） underwent periodic volcanic activity and frequent lithological *** study comprehensively analyzed the organic geochemistry,mineral composition,organic matter （OM） types,volcanic cycle,and palaeoenvironment of shale in the study *** such as total organic carbon （TOC）,rock pyrolysis （Rock-Eval）,organic petrology,scanning electron microscopy （SEM） with energydispersive spectrum （EDS） analysis,X-ray diffraction （XRD）,trace elements,and saturated hydrocarbon gas chromatography and mass spectrometry （GC-MS） were *** findings suggest that limited terrigenous input during the sedimentary period of the P2l2led to the deposition of a distinctive mixture of volcanic ash （felsic） and carbonate （dolomite and calcite）,with a low average clay mineral content of 6%.The P2l2shale emerged as a high-quality source rock,predominantly composed of type I and II kerogens,with moderate OM *** deposition environment was characterized by hot and arid conditions,high salinity,and intensive reducibility,which was favorable for algae development and conducive to OM ***,two lamalginite types,labeled as lamalginite“A”and lamalginite“B,”were ***“B”-rich shales were deposited in a hotter and drier climate compared to lamalginite“A”-rich ***“B”-rich shale inexhibited high levels of C28regular sterane and β-carotenes,distinguishing it from lamalginite“A”-rich shale.A comprehensive analysis involving organic petrology,SEM,sedimentary environment,and biomarker characteristics suggests that lamalginite“B”may be a salt-tolerant green alga,while lamalginite“A”may be a ***,an OM enrichment model for the P2l2shale was established.

关键词： Volcanic ash Geochemistry Petrology Palaeoenvironment Lamalginite

两种不同干燥温度下盐茱萸、蒸茱萸中5种有效成分及水分含量研究

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中医药导报 2020年第13期26卷 40-44页

作者：戴冰杨磊雷欣东李玉星于慧湖南中医药大学第一附属医院湖南长沙410007 湖南中医药大学湖南长沙410208

目的:比较研究烘箱60℃干燥(烘干)和室温25℃干燥(室干)两种干燥条件下制得的盐茱萸、蒸茱萸中含有的莫诺苷、马钱苷、獐芽菜苷、没食子酸、5-羟甲基糠醛(简称5总成分)总含量及水分含量的差异。方法:采用HPLC法测定5总成分的含量,色谱... 详细信息

目的:比较研究烘箱60℃干燥(烘干)和室温25℃干燥(室干)两种干燥条件下制得的盐茱萸、蒸茱萸中含有的莫诺苷、马钱苷、獐芽菜苷、没食子酸、5-羟甲基糠醛(简称5总成分)总含量及水分含量的差异。方法:采用HPLC法测定5总成分的含量,色谱条件为Hypersil C18色谱柱(4.6 mm×250 mm,5μm),流动相为乙腈-0.3%磷酸梯度洗脱,流速为0.4 mL/min,检测波长为250 nm,柱温为30℃,进样量为10μL。结果:烘箱60℃和室温25℃两种干燥温度下,盐茱萸及蒸茱萸中水分含量均满足《中华人民共和国药典》标准(<16%)。其中,盐制、蒸制山茱萸组于烘箱(60℃)干燥条件下水分含量均低于10%,室温(25℃)干燥条件下的水分含量均高于10%而低于16%。烘箱60℃不同干燥温度下盐茱萸和蒸茱萸中的5总成分总含量均低于室温25℃干燥温度下的总含量。结论:炮制盐茱萸、蒸茱萸时的干燥温度宜为室温25℃。

关键词：山茱萸有效成分水分干燥 HPLC法没食子酸 5-羟甲基糠醛莫诺苷马钱苷獐芽菜苷

体教融合促进竞技体育后备人才培养的价值意蕴、现实困境与实施路径

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吉林体育学院学报 2023年第4期39卷 83-89页

作者：白新蕾陈培友孙志江苏开放大学教育学院南京210036 南京师范大学体育科学学院南京210023

运用文献资料法、逻辑分析法、实地调研法等方法对新时代体教融合促进青少年竞技体育后备人才培养的价值、困境和路径进行研究。研究认为:体教融合有助于促进竞技体育后备人才全面发展;拓宽竞技体育后备人才选择面;形成竞技体育后备人... 详细信息

运用文献资料法、逻辑分析法、实地调研法等方法对新时代体教融合促进青少年竞技体育后备人才培养的价值、困境和路径进行研究。研究认为:体教融合有助于促进竞技体育后备人才全面发展;拓宽竞技体育后备人才选择面;形成竞技体育后备人才培养多主体参与;整合竞技体育后备人才培养资源供给;激发竞技体育后备人才的多元价值发挥。但推行存在现实困境:政策滞后影响体教融合的整体推进;认知偏差弱化体教融合的社会基础;利益博弈弱化优质资源的集聚效益等。基于此,提出实施路径:以多元治理理念为引领,构建基于政府的政策协同机制,加强顶层设计,完善配套政策;构建基于社会大众的思想融合机制,加强文化认同,提高认识站位;构建基于多培养主体的利益共享机制,畅通资源使用,实现协同联动。

关键词：体教融合竞技体育后备人才多元治理

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不同栽培条件下南方红豆杉生长特性研究

广西植物 2010年第5期30卷 647-650,615页

作者：李辛雷李纪元范正琪田敏张晓庆中国林业科学研究院亚热带林业研究所浙江富阳311400

以4～6年生南方红豆杉为材料,对其不同栽培条件下地径、冠幅、株高、当年抽高、当年侧枝数及总侧枝数等生长特性进行了研究。结果表明:南方红豆杉4～6年生幼林生长量随年龄增大而增加,但其增加的趋势变缓,生长速度变慢;耕作农田中南方... 详细信息

以4～6年生南方红豆杉为材料,对其不同栽培条件下地径、冠幅、株高、当年抽高、当年侧枝数及总侧枝数等生长特性进行了研究。结果表明:南方红豆杉4～6年生幼林生长量随年龄增大而增加,但其增加的趋势变缓,生长速度变慢;耕作农田中南方红豆杉生长最好,土壤板结未耕作农田生长较差,去除上层20cm耕作土的农田最差;南方红豆杉纯林生长好于落叶阔叶林下(林分郁闭度0.6～0.7),且种植密度越大差异越明显;南方红豆杉落叶阔叶林下套种及纯林生长量均随栽培密度减小而增大,不同栽培密度相差越大,生长量差异越明显。

关键词：南方红豆杉栽培条件生长特性

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不同形状基坑钢板桩支护的尺寸效应分析

佛山科学技术学院学报（自然科学版） 2019年第2期37卷 21-28页

作者：黄胜文朱江雷元新江门市江海区碧桂园房地产开发有限公司广东江门529000 佛山科学技术学院交通与土木建筑学院广东佛山528000

在场地土层性质相同的条件下,以桩长12 m、SP-4型的拉森钢板桩为例,利用Midas-GTS有限元分析软件建立三维基坑模型,定量分析不同形状、平面尺寸、开挖深度的基坑对悬臂式钢板桩支护变形的尺寸效应。

关键词：基坑工程钢板桩尺寸效应有限元

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超声内镜质量控制指标及标准的研究进展

中华消化内镜杂志 2023年第10期40卷 853-856页

作者：邓颖辛磊王洛伟金震东李兆申海军军医大学第一附属医院消化内科上海200433

超声内镜检查术(endoscopic ultrasound,EUS)是内镜技术与超声的结合,在消化道肿瘤的诊断及分期中有重要地位。近年来,我国EUS迅速发展,临床应用日益广泛。随着EUS的广泛应用,其质量提升也受到关注。本文将EUS的质量指标按时间顺序归纳... 详细信息

超声内镜检查术(endoscopic ultrasound,EUS)是内镜技术与超声的结合,在消化道肿瘤的诊断及分期中有重要地位。近年来,我国EUS迅速发展,临床应用日益广泛。随着EUS的广泛应用,其质量提升也受到关注。本文将EUS的质量指标按时间顺序归纳为术前指标、术中指标、术后指标并对其相关研究进展作一综述,为EUS的质量提升提供一定参考。

关键词：质量控制高级消化内镜超声内镜

Enhancing Green Ammonia Electrosynthesis Through Tuning Sn Vacancies in Sn‑Based MXene/ MAX Hybrids

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Nano-Micro Letters 2024年第5期16卷 154-168页

作者： xinyu Dai Zhen‑Yi Du Ying Sun Ping Chen Xiaoguang Duan Junjun Zhang Hui Li Yang Fu Baohua Jia lei Zhang Wenhui Fang Jieshan Qiu Tianyi Ma Key Laboratory for Green Synthesis and Preparative Chemistry of Advanced Materials of Liaoning Province College of ChemistryInstitute of Clean Energy ChemistryLiaoning UniversityShenyang 110036People’s Republic of China State Key Laboratory of Clean and Efficient Coal Utilization Taiyuan University of TechnologyTaiyuan 030024People’s Republic of China School of Chemistry and Chemical Engineering Anhui UniversityHefei 230601People’s Republic of China School of Chemical Engineering The University of AdelaideAdelaideSA 5005Australia State Key Laboratory of High‑Efficiency Utilization of Coal and Green Chemical Engineering College of Chemistry and Chemical EngineeringNingxia UniversityYinchuan 750021NingxiaPeople’s Republic of China School of Science RMIT UniversityMelbourneVIC 3000Australia Guangdong Provincial Key Laboratory of Advanced Energy Storage Materials School of Chemistry and Chemical EngineeringSouth China University of TechnologyGuangzhou 510640People’s Republic of China College of Chemical Engineering State Key Laboratory of Chemical Resource EngineeringBeijing University of Chemical TechnologyBeijing 100029People’s Republic of China

Renewable energy driven N_(2) electroreduction with air as nitrogen source holds great promise for realizing scalable green ammonia ***,relevant out-lab research is still in its ***,a novel Sn-based MXene/MAX hybrid with abundant Sn vacancies,Sn@Ti_(2)CTX/Ti_(2)SnC–V,was synthesized by controlled etching Sn@Ti_(2)SnC MAX phase and demonstrated as an efficient electrocatalyst for electrocatalytic N2 *** to the synergistic effect of MXene/MAX heterostructure,the existence of Sn vacancies and the highly dispersed Sn active sites,the obtained Sn@Ti2CTX/Ti_(2)SnC–V exhibits an optimal NH_(3) yield of 28.4μg h^(−1) mg_(cat)^(−1) with an excellent FE of 15.57% at−0.4 V versus reversible hydrogen electrode in 0.1 M Na_(2)SO_(4),as well as an ultra-long ***,this catalyst represents a satisfactory NH3 yield rate of 10.53μg h^(−1) mg^(−1) in the home-made simulation device,where commercial electrochemical photovoltaic cell was employed as power source,air and ultrapure water as feed *** as-proposed strategy represents great potential toward ammonia production in terms of financial cost according to the systematic technical economic *** work is of significance for large-scale green ammonia production.

关键词： Green ammonia synthesis N2 electroreduction Renewable energy Sn MXene/MAX hybrid