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改进暗通道原理下视觉图像光晕消除算法

现代电子技术 2025年第1期48卷 60-64页

作者：任晓楠李广中北大学山西太原030051

在光晕区域附近进行光晕消除操作可能会降低图像的对比度、清晰度和细节。因此,需要开发有效的方法来恢复和增强光晕消除后的图像细节,以确保整体图像质量的提高,为此设计一种改进暗通道原理下视觉图像光晕消除算法。建立大气散射模型... 详细信息

在光晕区域附近进行光晕消除操作可能会降低图像的对比度、清晰度和细节。因此,需要开发有效的方法来恢复和增强光晕消除后的图像细节,以确保整体图像质量的提高,为此设计一种改进暗通道原理下视觉图像光晕消除算法。建立大气散射模型深度分析光晕产生条件,根据图像中的像素强度值计算成像环境中的透射率,按照大气光照的散射系数建立光照条件研究模型。在较高的像素颜色通道条件下,根据图像中高亮度和强反射部分搭建无光晕图像亮通道定义,聚类图像亮通道特征,利用快速双边滤波器细化透射率,建立光晕图像的成像模型。在改进暗通道原理的过程中通过调整多个计算参数,包括改变权重函数,设置光晕消除的恢复指令,完成对视觉图像的光晕消除处理。经过实验分析可以证明,所提方法具备良好的光晕消除性能,光晕消除效果较好。

关键词：改进暗通道视觉图像光晕消除透射率多尺度算法大气散射模型

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因地制宜发展新质生产力的学理阐释

新疆师范大学学报（哲学社会科学版） 2025年第2期46卷 39-47页

作者：李传兵任平阳贵州大学长征文化研究院贵州贵阳550025 贵州大学中共党史党建研究院贵州贵阳550025 贵州大学马克思主义学院贵州贵阳550025 贵州大学哲学学院贵州贵阳550025

因地制宜发展新质生产力是我国经济发展领域的重要课题,科学合理发展新质生产力是推动经济持续增长和提升全民福祉的关键所在。文本在系统把握因地制宜中的“时”“业”“域”特点,深入挖掘因地制宜发展新质生产力理论内涵的基础上,从... 详细信息

因地制宜发展新质生产力是我国经济发展领域的重要课题,科学合理发展新质生产力是推动经济持续增长和提升全民福祉的关键所在。文本在系统把握因地制宜中的“时”“业”“域”特点,深入挖掘因地制宜发展新质生产力理论内涵的基础上,从马克思主义哲学角度与中国特色社会主义建设的具体实践角度探讨其生成依据,围绕制度、发展、主体、创新四个向度阐述因地制宜发展新质生产力的价值旨归。通过对立足地方实际、直面地方问题、汇聚地方力量和激发地方活力四个方面的实践探赜,重点揭示如何将因地制宜发展新质生产力理论转化为可落地的务实行动,推动新质生产力进一步发展。

关键词：新质生产力因地制宜高质量发展实事求是学理阐释

基于非负稀疏编码的位置细胞反馈环路学习模型

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郑州大学学报（理学版） 2025年第1期57卷 31-39页

作者：任梦辉王东署郑州大学电气与信息工程学院河南郑州450001 龙门实验室智能系统科创中心河南洛阳471000

为了探究大脑导航编码的神经机制,聚焦内嗅皮层与海马体之间的神经连接进行模型研究。生理学证据显示,内嗅皮层与海马体之间存在显著的反馈回路连接,两者的空间编码细胞在导航行为中表现出高度关联性。基于这一基础,建立了反馈循环网络... 详细信息

为了探究大脑导航编码的神经机制,聚焦内嗅皮层与海马体之间的神经连接进行模型研究。生理学证据显示,内嗅皮层与海马体之间存在显著的反馈回路连接,两者的空间编码细胞在导航行为中表现出高度关联性。基于这一基础,建立了反馈循环网络模型,将内嗅皮层的栅格细胞与弱空间细胞作为网络输入,连接到海马体的位置细胞与颗粒细胞,并采用非负稀疏编码进行学习。实验结果表明:该反馈学习模型可以快速捕获细胞的空间调谐特性,仅使用弱空间细胞作为输入,也可以通过反馈环路学习到海马位置细胞对空间的单峰选择性,说明反馈编码机制在优化空间表示中发挥着关键作用。总之,该模型可能是大脑导航系统生成精确空间编码的重要细胞机制之一。

关键词：内嗅皮层海马体栅格细胞位置细胞反馈循环非负稀疏编码

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CLOSED SMOOTH SURFACE DEFINED FROM CUBIC TRIANGULAR SPLINES

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Journal of Computational Mathematics 2005年第1期23卷 67-74页

作者： ren-zhongFeng ren-hongWang DepartmentofMathematics BeijingUniversityofAeronauticsandAstronauticsKeylaboratoryofMathematicsInformaticsandBehavioralSemanticsMinistryofEducationBeijing100083China MathematicalScienceInstitute DalianUniversityofTechnologyDalian116023China

In order to construct closed surfaces with continuous unit normal, we introduce a news pline space on an arbitrary closed mesh of three-sided faces. Our approach generalizes an idea of Goodman and is based on the concept of 'Geometric continuity' for piecewise polynomial parametrizations. The functions in the spline space restricted to the faces are cubic triangular polynomials. A basis of the spline space is constructed of positive functions which sum to 1. It is also shown that the space is suitable for interpolating data at the midpoints of the faces。

关键词： closed triangular mesh triangular bernstein polynomial smooth spline geometric continuity

A New Method to Calculate Water Film Stiffness and Damping for Water Lubricated Bearing with Multiple Axial Grooves

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Chinese Journal of Mechanical Engineering 2020年第5期33卷 167-184页

作者： Guojun ren Thordon Bearings Inc. 3225BurlingtonON L7M 1A6Canada

Water lubricated guide bearings for hydro turbines and pumps are conventionally designed with multiple axial grooves to provide effectively cooling and flushing away *** to the variety of groove configuration in terms of number and size,a predication of their performance is *** paper deals with an analytical procedure to investigate groove effect on load capacity,stiffness and damping for this type of bearing where it is considered as an assembly of many inclined slide *** result can be applied to bearings made of hard materials combined with low bearing pressure.

关键词： Water lubricated bearing Groove effect Stiffness and damping Inclined slide bearing

FHL2 deficiency aggravates Candida albicans infection through decreased myelopoiesis

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Science China Life Sciences 2025年

作者： Rongmei Gao Kanchao Chen Yimin Wang Rongxia Guo Xiaoyu Zhang Peng Wu Weili Wang Qingxiang Huang Xuemei Xie Shangda Yang Yanling Lü Qian ren Fei Liu Song Chen Fengxia Ma Tao Cheng Hui Cheng State Key Laboratory of Experimental Hematology National Clinical Research Center for Blood Diseases Haihe Laboratory of Cell Ecosystem Institute of Hematology & Blood Diseases Hospital Chinese Academy of Medical Sciences & Peking Union Medical College CAMS Center for Stem Cell Medicine PUMC Department of Stem Cell and Regenerative Medicine

Hematopoiesis is a finely tuned process that generates all blood cell types through self-renewal and differentiation, which is crucial for maintaining homeostasis. Acute infections can prompt a hematopoietic response known as emergency myelopoiesis. In this study, using a Candida albicans (C. albicans) infection model, we demonstrated for the first time that disruption of Fhl2 led to increased fungal burden,heightened inflammatory response and reduced survival rates. Impaired myeloid hematopoiesis and immune cell production were evident, as proved by the decreased numbers of hematopoietic stem and progenitor cells (HSPCs) and granulocytes in the bone marrow of Fhl2-deficient mice. In conclusion, FHL2 regulated emergency myelopoiesis in response to C. albicans, affecting the host’s defense against pathogens.

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Half-lives of double β^+-decay with two neutrinos

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Science China(Physics,Mechanics & Astronomy) 2015年第1期58卷 38-41页

作者： ren YueJiao ren ZhongZhou Department of Physics Nanjing University Center of Theoretical Nuclear Physics National Laboratory of Heavy-Ion Accelerator

Nuclear double β^--decays with two neutrinos were observed for many years and a systematic law describing the relation between their half-lives and decay energies was also proposed recently [Phys Rev C, 2014, 89： 064603]. However, double β^＋ -decay （β^＋β^＋） with emission of both two positrons and two neutrinos has not been observed up to date. In this article, we pcrform a systematic analysis on the candidates of double β^＋-decay, based on the 2012 nuclear mass table. Eight nuclei are found to be the good candidates for double β^＋-decay and their half-lives are predicted according to the generalization of the systematic law to double β^＋-decay. As far as we know, there is no theoretical result on double β^＋-decay of nucleus ^154Dy and our result is the first prediction on this nucleus. This is also the first complete research on eight double β^＋-decay candidates based on the available data of nuclear masses. It is expected that the calculated half-lives of double β^＋-decay in this article will be useful for future experimental search of double β^＋-decay.

关键词： double β^+-decay with two neutrinos half-lives systematic law weak interaction.

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露天边帮开采中充填方式的探讨

煤矿机械 2025年第1期46卷 99-101页

作者：任晓力中国煤炭科工集团太原研究院有限公司太原030006 山西天地煤机装备有限公司太原030006 煤矿采掘装备国家工程实验室太原030006

针对我国露天边帮开采充填的现状,结合井工开采充填的方式,介绍了矸石充填、膏体充填和高水充填3种边帮充填方式的优缺点,探讨了3种井工开采充填方式应用到露天边帮开采充填的可行性,为露天边帮开采充填设计者提供了一些思路。

关键词：露天边帮开采充填膏体充填高水充填

Morphological Mechanism and Experimental Verification of Self-healing of Basalt-fiber Modified Water-soaked Asphalt

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Journal of Wuhan University of Technology(Materials Science) 2025年第1期 171-186页

作者：肖敏敏董金勇 LI Chunyan GUO Xu ren Jianguo School of Urban Construction and Safety Engineering Shanghai Institute of Technology

This study investigates the mechanism of action of representative molecules of basalt fibers on the healing of water-soaked *** parameters,morphological characteristics,interfacial healing energy,and interfacial healing strength were analyzed using molecular dynamics and macroscopic tests under different time,temperature,and water conditions to evaluate the specific states and critical conditions involved in *** results indicate that basalt-fiber molecules can induce rearrangement and a combination of water-soaked asphalt at the healing *** groups with different bonding states increase the interfacial adsorption capacity of water-soaked *** interaction between basalt fiber molecules and water molecules leads to a "hoop" phenomenon,while aromatics-2 molecules exhibit a "ring band aggregation" *** former reduces the miscibility of water and asphalt molecules,while the latter causes slow diffusion of the ***,a micro-macro dual-scale comparison of interfacial healing strength was conducted at temperatures of 297.15 and 312.15 K to identify the strength transition point and critical temperature of 299.4 K during the self-healing process of basalt-fiber modified water-soaked asphalt.

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