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基于改进SRGAN的无人机航拍图像去雾算法

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激光与红外 2024年第6期54卷 991-997页

作者：王朝辉严一鸣韩晓微梁天一万子慷王起钢沈阳大学视觉感知与智能计算沈阳市重点实验室辽宁沈阳110044 中国电子科技集团公司第十一研究所北京100015 沈阳大学科技创新研究院辽宁沈阳110044

针对航拍图像往往受雾霾天气影响出现图像模糊、细节丢失等问题,本研究提出了一种基于改进SRGAN的无人机航拍图像去雾算法,旨在快速高效地去除航拍图像中的雾霾并恢复图像细节和纹理信息。本文重新设计判别器核心结构SResblock并引入CBA... 详细信息

针对航拍图像往往受雾霾天气影响出现图像模糊、细节丢失等问题,本研究提出了一种基于改进SRGAN的无人机航拍图像去雾算法,旨在快速高效地去除航拍图像中的雾霾并恢复图像细节和纹理信息。本文重新设计判别器核心结构SResblock并引入CBAM注意力机制,完成了对原始SRGAN的改进,提出DH-SRGAN算法。在VISDRONE户外航拍合成雾数据集上测试结果显示,本算法在单幅图像去雾方面取得了显著提升,去雾后的图像与原始图像PSNR达24.48dB、SSIM达95.29%,两项指标均优于传统算法。相比原始SRGAN,DH-SRGAN算法更加轻量化,适合嵌入到无人机侦察任务中的图像预处理流程。

关键词：图像去雾 DH-SRGAN 深度学习残差结构注意力机制

Carbon Abatement Cost-Sharing Strategy for Electric Power Sector Based on Incentive and Subsidy Mechanisms

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Energy Engineering 2024年第10期121卷 2907-2935页

作者： hui wang Wen wang Wenhui zhao College of Economics and Management Shanghai University of Electric PowerShanghai200090China

The green and low carbon transition and development of the electricity industry is the most crucial task in realizing the“dual-carbon target”,and it is urgent to explore the incentive and subsidy mechanism to promote green electricity consumption and the cost-sharing strategy of carbon reduction,to alleviate the pressure of carbon abatement cost of each subject of the electricity supply *** this background,this paper takes into account the low-carbon subsidies provided by the government and the incentive subsidies for users,and studies the optimal decision-making of each subject in the electricity supply chain,so that each of them can obtain the optimal profit and achieve carbon emission reduction at the same ***,taking into account the direct power purchase mode of large users and the electricity-selling companies emerging after the reform of the power sales side,we have established a cooperative mechanism for sharing the cost of carbon emission reduction in the electricity supply chain and clarified the relationship between the supply and demand of electricity among the main ***,considering government low-carbon subsidies and user incentive subsidies,the optimal decisionmaking model is established under two scenarios of decentralized and centralized cooperative games in the supply chain,respectively,with the objective of maximizing profits and carbon reduction *** for the optimal proportion of carbon abatement costs shared by each participant in the electricity supply chain in achieving game ***,we analyze the role of the government’s low-carbon subsidies,users’incentive subsidies,and other factors on the profit and carbon reduction effect of the electricity industry through the example analysis and further analyze the impact of carbon abatement cost-sharing measures to provide recommendations for the electricity industry to realize low-carbon abatement and make decisions.

关键词： Electricity supply chain incentive subsidy mechanisms carbon abatement cost-sharing green electricity consumption

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生物油基环保型煤尘抑尘剂的制备及性能研究

应用化工 2024年第1期53卷 71-75,81页

作者：曹秋枫王朝辉齐有郭锋杰闫宇星曹青太原理工大学化学学院山西太原030024

以木屑热解油为原料,在过硫酸铵(APS)存在下,将预处理的生物油与丙烯酸(AA)和壳聚糖(CTS)聚合,制备出一种生物油基环保新型煤尘抑制剂(Hbio-CTS)。结果表明,在70℃,CTS和AA的质量分别为0.65 g和3.00 g,APS/CTS为5%时,可获得Hbio-CTS的... 详细信息

以木屑热解油为原料,在过硫酸铵(APS)存在下,将预处理的生物油与丙烯酸(AA)和壳聚糖(CTS)聚合,制备出一种生物油基环保新型煤尘抑制剂(Hbio-CTS)。结果表明,在70℃,CTS和AA的质量分别为0.65 g和3.00 g,APS/CTS为5%时,可获得Hbio-CTS的最大黏度,为5.4 mPa·s。Hbio-CTS的FTIR和TG均证实,AA和CTS已成功接枝在生物油组分的结构上。Hbio-CTS在煤粉上形成的固化层受风雨影响很小。其中,在17 m/s(Ⅶ级)风速下,煤粉的最大质量损失为6.99%。经过8个循环(56 d)后,Hbio-CTS的降解率为57%。

关键词：生物油煤尘抑尘剂降解

Calculation and Analysis of Force in Roll System of 20-High Sendzimir Mill

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Journal of Iron and Steel Research International 2013年第9期20卷 33-39页

作者： wang zhao-hui GAO Quan-jie YAN Chao XIA Zhi-yong ZHANG Yao-bing Key Laboratory of Metallurgical Equipment and Control of Education Ministry Wuhan University of Science and Technology

The calculation of force for a roll system has significant effects on cold roiled thin strip gauge adjustment of a 20-high Sendzimir mill. According to the rolling parameters and rolling plans of a ZR 22B-42 Sendzimir mill in a silicon steel factory, the contact force and the resultant force of each roll in the roll system were calculated both in the static state and in the rolling state through C＋＋ programs. It was found that the contact force between the see ond intermediate driven roll and the back up rolls B and C was much lower than that between the other rolls in static state. The results also demonstrated that the resultant force are 59.5%-62%, 37.7%-40.3%, 87.1%-88.7% and 53.9%-56.7% of the rolling force at the second intermediate driven roll, the second intermediate idler roll, the back-up rolls B and C and the back-up rolls A and D, respectively. It was also revealed that the minimum contact force generated between the first intermediate roll and the second intermediate idler roll is 206.7 kN on the first roll ing pass, and that on the second rolling pass, the minimum contact force generated between the second intermediate driven roll and the back-up roll C is 470.7 kN.

关键词： Sendzimir mill roll system static state rolling force

Synthesis and CDK2 kinase inhibitory activity of 7/7′-azaindirubin derivatives

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Chinese Chemical Letters 2010年第3期21卷 297-300页

作者： wang, zhao hui Dong, Ying wang, Tao Shang, Ming Hong Hua, Wei Yi Yao, Qi Zheng China Pharmaceut Univ Sch Pharm Nanjing 210009 Peoples R China China Pharmaceut Univ Dept Organ Chem Nanjing 210009 Peoples R China China Pharmaceut Univ Jiangsu Ctr Drug Screening Nanjing 210009 Peoples R China

A series of novel 7 -azaindirubin(1a-g) and 7-azaindirubin(2a,2c,2e and 2f) derivatives were designed and *** structures were characterized by ~1H NMR and MS spectroscopy as well as by elemental *** inhibitory properties against CDK2/cylinA were evaluated in *** contrast to indirubin,some of the described azaindirubins emerged as potent inhibitors of CDK2/cylinA and compound 2b had more potent *** tests also showed that nitrogen atom at 7-position of azaindirubi...

关键词： 7 -Azaindirubin 7-Azaindirubin Synthesis CDK2/cyclinA Inhibition

Femtosecond laser-induced periodic surface structures on hard and brittle materials

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Science China(Technological Sciences) 2024年第1期67卷 19-36页

作者： zhao GuoXu wang Gong LI YunFei wang Lei LIAN YuDong YU Yu zhao hui wang YuLei LU ZhiWei Center for Advanced Laser Technology Hebei University of TechnologyTianjin 300401China Hebei Key Laboratory of Advanced Laser Technology and Equipment Tianjin 300401China State Key Laboratory of Integrated Optoelectronics College of Electronic Science and EngineeringJilin UniversityChangchun 130012China School of Information and Electrical Engineering Hebei University of EngineeringHandan 056038China

Hard and brittle materials have high hardness,excellent optical stability,chemical stability,and high thermal ***,they have huge application potential in various fields,such as optical components,substrate materials,and quantum information,especially under harsh conditions,such as high temperatures and high *** laser direct writing technology has greatly promoted the development of femtosecond laser-induced periodic surface structure(Fs-LIPSS or LIPSS by a femtosecond laser)applications of hard and brittle materials due to its high precision,controllability,and three-dimensional processing *** far,LIPSSs have been widely used in material surface treatment,optoelectronic devices,and ***,a consensus has not been reached regarding the formation mechanism of LIPSSs on hard and brittle *** this paper,three widely accepted LIPSS formation mechanisms are introduced,and the characteristics and applications of LIPSSs on diamonds,silicon,silicon carbide,and fused silica surfaces in recent years are *** addition,the application prospects and challenges of LIPSSs on hard and brittle materials by a femtosecond laser are discussed.

关键词： laser-induced periodic surface structures hard and brittle materials femtosecond laser

Study of deep transportation and plugging performance of deformable gel particles in porous media

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Petroleum Science 2024年第2期21卷 962-973页

作者： Wen-Jing zhao Jing wang Zhong-Yang Qi hui-Qing Liu National Key Laboratory of Petroleum Resources and Engineering China University of PetroleumBeijing102249China MOE Key Laboratory of Petroleum Engineering China University of PetroleumBeijing102249China

Deformable gel particles(DGPs) possess the capability of deep profile control and flooding. However, the deep migration behavior and plugging mechanism along their path remain unclear. Breakage, an inevitable phenomenon during particle migration, significantly impacts the deep plugging effect. Due to the complexity of the process, few studies have been conducted on this subject. In this paper, we conducted DGP flow experiments using a physical model of a multi-point sandpack under various injection rates and particle sizes. Particle size and concentration tests were performed at each measurement point to investigate the transportation behavior of particles in the deep part of the reservoir. The residual resistance coefficient and concentration changes along the porous media were combined to analyze the plugging performance of DGPs. Furthermore, the particle breakage along their path was revealed by analyzing the changes in particle size along the way. A mathematical model of breakage and concentration changes along the path was established. The results showed that the passage after breakage is a significant migration behavior of particles in porous media. The particles were reduced to less than half of their initial size at the front of the porous media. Breakage is an essential reason for the continuous decreases in particle concentration, size, and residual resistance coefficient. However, the particles can remain in porous media after breakage and play a significant role in deep plugging. Higher injection rates or larger particle sizes resulted in faster breakage along the injection direction, higher degrees of breakage, and faster decreases in residual resistance coefficient along the path. These conditions also led to a weaker deep plugging ability. Smaller particles were more evenly retained along the path, but more particles flowed out of the porous media, resulting in a poor deep plugging effect. The particle size is a function of particle size before inject

关键词： Physical simulation Deformable gel particle Breakage Particle size Residual resistance coefficient

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临床护士文化能力量表的汉化及信效度检验

护理学报 2024年第17期31卷 46-50页

作者：朱亚晋王朝辉代明珠王琳孙莹莹中日友好医院国际部北京100029 中日友好医院心内科北京100029

目的引进、汉化临床护士文化能力量表,并检验其信效度。方法遵循Brislin翻译模式形成中文版量表;通过专家评议及预试验对翻译后的量表进行跨文化调适。采用便利抽样法在2022年11月—2023年2月对北京市、承德市、太原市等医院的432名临... 详细信息

目的引进、汉化临床护士文化能力量表,并检验其信效度。方法遵循Brislin翻译模式形成中文版量表;通过专家评议及预试验对翻译后的量表进行跨文化调适。采用便利抽样法在2022年11月—2023年2月对北京市、承德市、太原市等医院的432名临床护士进行调查,评价中文版临床护士文化能力量表的信效度。结果中文版临床护士文化能力量表共包含4个维度,33个条目,探索性因子分析共提取4个公因子,累积方差贡献率为67.254%。量表的条目内容效度指数为0.818~1.000,量表内容效度指数为0.931。量表总Cronbachα系数为0.976,重测信度为0.932。结论中文版临床护士文化能力量表具有良好的信效度,适用于评估临床护士的跨文化护理能力,为制订有针对性的跨文化护理教育提供参考依据。

关键词：文化能力跨文化护理量表汉化信度效度

Integrating theory with the nanoreactor concept to synthesize hollow carbon sphere-encapsulated PtNi alloys for enhanced H_(2) generation

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Carbon Energy 2024年第7期6卷 150-162页

作者： Yufeng Wu Minwei Song Ziyi zhao Guang-hui wang Changlong wang Didier Astruc Institute of Circular Economy Faculty of Materials and ManufacturingBeijing University of TechnologyBeijingChina Key Laboratory of Biofuels Qingdao Institute of Bioenergy and Bioprocess TechnologyChinese Academy of SciencesQingdaoChina ISM UMR CNRS N°5255Universitéde BordeauxTalence CedexFrance

The rational design of efficient bimetallic nanoparticle(NP)catalysts is challenging due to the lack of theoretical understanding of active components and insights into the mechanisms of a specific ***,we report the rational design of nanoreactors comprising hollow carbon sphere-confined PtNi bimetallic NPs(PtNi@HCS)as highly efficient catalysts for hydrogen generation via ammonia borane hydrolysis in *** both density functional theory calculations and molecular dynamics simulations,the effects of an active PtNi combination and the critical synergistic role of a hollow carbon shell on the molecule diffusion adsorption behaviors are *** isotope effects and theoretical calculations allow the clarification of the mechanism,with oxidative addition of an O-H bond of water to the catalyst surface being the rate-determining *** remarkable catalytic activity of the PtNi@HCS nanoreactor was also utilized for successful tandem catalytic hydrogenation reactions,using in situ-generated H_(2) from ammonia borane with high *** concerted design,theoretical calculations,and experimental work presented here shed light on the rational elaboration of efficient nanocatalysts and contribute to the establishment of a circular carbon economy using green hydrogen.

关键词： ammonia borane hydrogen nanoalloy nanoreactor solid catalyst