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基于感知先验与分量增强的高动态成像方法

光电子·激光 2025年第1期36卷 36-45页

作者：王伟张思远刘晓芮辽宁工程技术大学基础教学部辽宁工程技术大学电子与信息工程学院

高动态范围成像方法大多存在融合图像亮度不均衡、纹理丢失以及色彩失真等问题。针对此问题，提出了一种基于感知先验(perceptual priori, PP)与分量增强的高动态成像方法。根据感知先验对多曝光图像分别进行图像增强，保留更多的纹理... 详细信息

高动态范围成像方法大多存在融合图像亮度不均衡、纹理丢失以及色彩失真等问题。针对此问题，提出了一种基于感知先验(perceptual priori, PP)与分量增强的高动态成像方法。根据感知先验对多曝光图像分别进行图像增强，保留更多的纹理信息以及色彩真实感；引入注意力门控机制和特征提取(feature extraction, FE)操作对亮度分量进行增强；通过联合编码器-解码器网络对色度分量进行增强。对增强后的亮度分量和色度分量进行融合得到最终的融合图像。实验数据选用包含多种复杂场景的多曝光图像序列，结果表明，本文方法的视觉信息保真度达到了0.826 8,多曝光融合(multi-exposure fusion, MEF)结构相似度达到了0.947 6。本文方法相较于其他方法得到的融合图像，细节更加清晰、图像信息丰富、更符合人眼的视觉感知，融合效果更好。

关键词：高动态成像多曝光图像融合感知先验(PP) 分量增强

Effect of solvents on the morphology and structure of barium titanate synthesized by a one-step hydrothermal method

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International Journal of Minerals,Metallurgy and Materials 2023年第7期30卷 1407-1416页

作者： Xiaoxiao Pang Tingting Wang Bin liu Xiayue Fan xiaorui liu Jing Shen Cheng Zhong Wenbin Hu Key Laboratory of Advanced Ceramics and Machining Technology(Ministry of Education) and Tianjin Key Laboratory of Composite and Functional MaterialsSchool of Materials Science and EngineeringTianjin UniversityTianjin 300072China Chongqing Newcent New Materials Co. Ltd.Chongqing 401147China Joint School of National University of Singapore and Tianjin University International Campus of Tianjin UniversityFuzhou 350207China

Tetragonal barium titanate was synthesized from barium hydroxide octahydrate and titanium tetrachloride through a simple one-step hydrothermal *** effect of different solvents on the crystal structure and morphology of barium titanate nanoparticles during the hy-drothermal process was *** for ethylene glycol/water solvent,impurity-free barium titanate was synthesized in pure water,methanol/water,ethanol/water,and isopropyl alcohol/water mixed *** with other alcohols,ethanol promotes the formation of a tetragonal *** addition,characterization studies confirm that particles synthesized in methanol/water,ethanol/water,and isopropyl al-cohol/water mixed solvents are smaller in size than those synthesized in pure *** the case of alcohol-containing solvents,the particle size decreases in the order of isopropanol,ethanol,and *** all the media used in this study,ethanol/water is considered the optimum reaction media for barium titanate with high tetragonality(defined as the ratio of two lattice parameters c and a,c/a=1.0088)and small aver-age particle size(82 nm),which indicates its great application potential in multilayer ceramic capacitors.

关键词： barium titanate hydrothermal synthesis tetragonality solvent effects

Advances in the development of power supplies for the Internet of Everything

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InfoMat 2019年第2期1卷 130-139页

作者： Xiayue Fan xiaorui liu Wenbin Hu Cheng Zhong Jun Lu Key Laboratory of Advanced Ceramics and Machining Technology(Ministry of Education) School of Materials Science and EngineeringTianjin UniversityTianjinChina Joint School of National University of Singapore and Tianjin University International Campus of Tianjin UniversityBinhai New CityFuzhouChina Tianjin Key Laboratory of Composite and Functional Materials School of Materials Science and EngineeringTianjin UniversityTianjinChina Chemical Sciences and Engineering Division Argonne National LaboratoryLemontIllinois

The Internet of Everything(IoE),which aims to realize information exchange and communications for anything with the Internet,has revolutionized our modern *** as the driving force for devices in the IoE network,power supply systems play a fundamental role in the development of the ***,due to the complexity,multifunctionality and wide-scale deployment of diverse applications,power supply systems face great challenges,including distribution,connection,charging technologies,and *** this review,some challenges and advances in the development of both power supply systems and their units are *** the overall system-level field,establishing sustainable and maintenancefree power supply systems through wireless connections,efficient power management and integrated energy harvesting and storage systems is ***,the main performance metrics of power supply units are discussed,including energy density,service life,and self-power *** addition,some directions of power quality assessment for both the system and unit levels of power supply systems are presented,aiming to provide insight into the future development of high-performance power supply systems for the IoE.

关键词： assessment of power supply systems Internet of Everything power supply systems power supply units

Enhanced visible-light-assisted peroxymonosulfate activation over MnFe_(2)O_(4) modified g-C_(3)N_(4)/diatomite composite for bisphenol A degradation

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International Journal of Mining Science and Technology 2021年第6期31卷 1169-1179页

作者： Xiangwei Zhang Chunquan Li Ting Chen Ye Tan xiaorui liu Fang Yuan Shuilin Zheng Zhiming Sun School of Chemical and Environmental Engineering China University of Mining and Technology(Beijing)Beijing 100083China

The MnFe_(2) O_(4)/g-C_(3) N_(4)/diatomite composites(Mn/G/D) were prepared via a facile precipitation-calcination method in this *** Mn/G/D possessed higher specific surface area,lower electron-hole pairs' recombination rate,as well as wider and stronger visible light absorption *** the synergistic effect between g-C_(3 )N_(4) and MnFe_(2) O_(4),the photogene rated electron could transfer from g-C3 N4 to MnFe_(2) O_(4),which could promote the migration of electrons as well as enhance the photocatalytic activity and peroxymonosulfate(PMS) activation ***/G/D-5% composite displayed the excellent degradation performance of bisphenol A(BPA) with the removal efficiency of 99.9% under PMS/Vis system,which was approximately 2.47 and 63.8 times as high as that of the Mn/G/D-5%/PMS and Mn/G/D-5%/Vis system,***,negative electricity derived from diatomite surface also promoted the photogenerated carriers' migration,and the degradation rate constant was around 2.4 times higher than that of MnFe_(2) O_(4)/g-C_(3) N_(4)(Mn/G).In addition,quenching experiments showed that both radical pathway(h^(+),·OH,·O_(2)^(-)and SO_(4)·^(-)) and non-radical pathway(^(1) O_(2)) were responsible for the degradation of BPA.

关键词： Bisphenol A Photocatalysis Peroxymonosulfate MnFe_(2)O_(4) g-C_(3)N_(4) Diatomite

基于网络文本分析的河北省度假旅游目的地形象感知研究

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南阳师范学院学报 2025年第1期24卷 1-8页

作者：刘建平焦菁华罗楚怡曾杰刘小睿湘潭大学商学院湖南湘潭411100

从游客视角探究旅游目的地形象感知,获取游客诉求,发现旅游目的地发展中的不足,为进一步完善目的地形象构建提供依据。以马蜂窝、同程旅行、携程旅行、途牛旅游为基础数据库提取网络评价文本,采用内容分析法,借助ROST CM 6.0软件从认知... 详细信息

从游客视角探究旅游目的地形象感知,获取游客诉求,发现旅游目的地发展中的不足,为进一步完善目的地形象构建提供依据。以马蜂窝、同程旅行、携程旅行、途牛旅游为基础数据库提取网络评价文本,采用内容分析法,借助ROST CM 6.0软件从认知、情感、整体形象三个方面进行研究。结果表明:(1)滑雪、景色、动物是游客对河北省度假旅游形象的基本认知;(2)游客对河北省度假旅游整体情感较为满意,消极感知体现在景区服务、景区配套设施、景区管理和价格方面;(3)游客对河北省度假旅游的整体形象感知分为三个层次,对省内各度假旅游区的了解相对独立。

关键词：形象感知度假旅游内容分析法河北省

Analyses of circRNA profiling during the development from pre-receptive to receptive phases in the goat endometrium

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Journal of Animal Science and Biotechnology 2019年第3期10卷 633-647页

作者： Yuxuan Song Lei Zhang xiaorui liu Mengxiao Niu Jiuzeng Cui Sicheng Che Yuexia liu Xiaopeng An Binyun Cao College of Animal Science and Technology Northwest A&F University

Background: Recent studies have revealed that noncoding RNAs play important regulatory roles in the formation of endometrial *** RNAs(circRNAs) are a universally expressed noncoding RNA species that have been recently proposed to act as miRNA sponges that directly regulate expression of target genes or parental ***: We used Illumina Solexa technology to analyze the expression profiles of circRNAs in the endometrium from three goats at gestational day 5(pre-receptive endometrium,PE) and three goats at gestational day 15(receptive endometrium,RE).Overall,21,813 circRNAs were identified,of which 5,925 circRNAs were specific to the RE and 9,078 were specific to the PE,which suggested high *** analysis found 334 differentially expressed circRNAs in the RE compared with PE(P lium cell lines(EECs) and endometrial stromal cell line(ESCs),and each circRNA molecule exhibited unique regulation characteristics with respect to E2 and ***: These data provide an endometrium circRNA expression atlas corresponding to the biology of the goat receptive endometrium during embryo implantation.

关键词： CircRNAs Dairy goat Endometrial epithelium cells Endometrial stromal cells Receptive endometrium

Interface engineering of FeCo LDH@NiCoP nanowire heterostructures for highly efficient and stable overall water splitting

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Chinese Chemical Letters 2022年第8期33卷 4003-4007页

作者： Yong Jiang Yurong Li Yimin Jiang xiaorui liu Wei Shen Ming Li Rongxing He College of Chemistry and Chemical Engineering Southwest UniversityChongqing 400715China

Developing efficient and inexpensive OER electrocatalysts is a challenge for overall water ***,the heterostructured Fe Co LDH@NiCoP/NF nanowire arrays with high performance were rationally designed and prepared using an interface engineering *** from the special heterostructure between Fe Co LDH and Ni Co P,the as-synthesized Fe Co LDH@Ni Co P/NF electrocatalyst exhibits outstanding OER performance with an exceptionally low overpotential of 206 mV to achieve 20 mA/cm^(2)current density in an alkaline ***,a cell constructed using the FeCo LDH@NiCoP/NF electrocatalyst as cathode and anode just needs a voltage of 1.48 V at 10 mA/cm^(2),and shows excellent stability over 80 *** and theoretical results verified that the introduction of Ni Co P efficiently regulates the electronic structure of Fe Co LDH,which tremendously boosts the conductivity and intrinsic catalytic activity of FeCo LDH@NiCoP/NF *** present work provides guidance for the preparation of other efficient and cheap electrocatalytic materials.

关键词： OER Heterostructure Interface engineering Water-splitting DFT

Impacts of climate change mitigation on agriculture water use:A provincial analysis in China

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Geography and Sustainability 2020年第3期1卷 189-199页

作者： Chaoyi Guo Hancheng Dai xiaorui liu Yazhen Wu Xiaoyu liu Yong liu College of Environmental Sciences and Engineering Peking UniversityBeijing 100871China State Environmental Protection Key Laboratory of All Materials Flux in Rivers Beijing 100871China

Agriculture consumes huge amounts of water in China and is profoundly affected by climate *** study projects the agricultural water use towards 2030 under the climate change mitigation target at the provincial level in China by linking a computable general equilibrium(CGE)model and a regression *** solving the endogeneities amongst agricultural water use,output and climate factors,we explore how these variables affect water use and further predict future trends through soft-link with the IMED|CGE *** is found that sunshine duration has a slightly positive impact on water ***,agricultural output will significantly drive agricultural water use based on historical data of the past 16 *** also show that carbon reduction would have a trade-offor co-benefit effect on water use due to regional *** with increasing agricultural exports,such as Xinjiang and Ningxia,would anticipate considerable growth in agricultural water use induced by carbon *** soft-link method proposed by this study could be applied for future studies that aim to incorporate natural and geographical factors into human activities,and vice versa,for assessing sustainable development policies in an integrated way.

关键词： Climate change Agricultural water use Soft link IMED|CGE Regression model Co-benefit Trade-off

circRNA3669 promotes goat endometrial epithelial cells proliferation via miR-26a/RCN2 to activate PI3K/AKT-mTOR and MAPK pathways

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Journal of Integrative Agriculture 2024年第3期23卷 960-974页

作者： xiaorui liu Jiuzeng Cui Mengyao Wei Xiaofei Wang Yuexia liu Zhongshi Zhu Min Zhou Gui Ba Langda Suo Yuxuan Song Lei Zhang Division of Laboratory Safety and Services Northwest A&F UniversityYangling 712100China College of Animal Science and Technology Northwest A&F UniversityYangling 712100China Institute of Animal Sciences Tibet Academy of Agricultural and Animal Husbandry SciencesLhasa 850009China

The development of receptive endometrium(RE) from pre-receptive endometrium(PE) for successful embryo implantation is a complex dynamic process in which the morphology and physiological states of the endometrial epithelium undergo a series of significant changes, including cell proliferation and apoptosis. However, the molecular mechanisms are not yet fully understood. In this study, a higher circRNA3669 level was observed in PE than in RE of goats. Functional assays revealed that this overexpression promoted the proliferation of goat endometrial epithelial cells(GEECs) by activating the expression of genes related to the PI3K/AKT-mTOR and MAPK pathways,thereby inhibiting apoptosis in vitro. Furthermore, circRNA3669 functioned as a competing endogenous RNA(ceRNA) to upregulate Reticulocalbin-2(RCN2) expression at the post-transcriptional level by interacting with and downregulating miR-26a in GEECs. In addition, RCN2, which is highly expressed in the PE of goats, was found to be regulated by β-estradiol(E2) and progesterone(P4). Our results demonstrated that RCN2 also affected the key proteins PI3K, AKT, mTOR, JNK, and P38 in the PI3K/AKT-mTOR and MAPK pathways, thereby facilitating GEECs proliferation and suppressing their apoptosis in vitro. Collectively, we constructed a new circRNA3669-miR-26aRCN2 regulatory network in GEECs, which further provides strong evidence that circRNA could potentially play a crucial regulatory role in the development of RE in goats.

关键词： circRNA3669 RCN2 miR-26a goat endometrial epithelial cells(GEECs) proliferation