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CaH2-promoted activity of Ni-carbonate interface for CO_(2) methanation

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Journal of Energy Chemistry 2025年第1期100卷 522-532页

作者： Jin-Peng wang Guo-Cui Mao Hui-Lin Jiang Bao-xia Dong Yun-Lei Teng School of Chemistry and Chemical Engineering Yangzhou UniversityYangzhou 225002JiangsuChina

Transition metal-carbonate interfaces often act as active sites in heterogeneous catalytic *** interface between transition metal and metal carbonate exhibits a dynamic equilibrium during the CO_(2)hydrogenation reaction,involving surface carbonate hydrogenation and CO_(2)***,there have been few reports on engineering the activity of the interface between transition metal and alkaline earth metal carbonate for catalytic CO_(2)*** work demonstrated that the incorporation of CaH_(2)in Ni/CaCO_(3)enhances the CO_(2)methanation activity of the *** CO_(2)conversion for Ni/CaH_(2)-CaCO_(3)reached 68.5%at 400°C,which was much higher than that of the Ni/CaCO_(3)(31.6%) and Ni/CaH_(2)-CaO (42.4%) ***,the Ni/CaH_(2)-CaCO_(3)catalysts remained stable during the stability test for 24 h at 400°C and 8 *** research revealed that CaH_(2)played a crucial role in promoting the activity of the Ni-carbonate interface for CO_(2)***_(2)could modify the electronic structure of Ni and tune the structural properties of CaCO_(3)to generate medium basic sites (OH groups),which are favorable for the activation of H2and CO_(2).In-situ Fourier transform infrared spectroscopy (FTIR) analysis combined with density functional theory calculations demonstrated that CO_(2)activation occurs at the hydroxyl group (OH) on the CaH_(2)-modified Ni-carbonate surface,leading to the formation of CO_(3)H****,our study has confirmed that CO_(2)methanation over the Ni/CaH_(2)-CaCO_(3)catalysts proceeds via the formate pathway.

关键词： CO_(2)methanation Metal hydride Ni catalysts Carbonate Metal-carbonate interface

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园林湿地——一种独特的人工湿地类型

湿地科学 2007年第1期5卷 7-12页

作者：孙广友王海霞中国科学院东北地理与农业生态研究所吉林长春130021 吉林师范大学吉林四平136000

确认园林湿地是人工湿地的一种独特类型。定义园林湿地为:在以隔离物为边界的空间范围内,构建具有协调建筑物和文化装饰的人工水景湿地,并具有审美、文化娱乐、休憩与居住等综合功能的自然—人文复合湿地系统。园林湿地具有不同的类型... 详细信息

确认园林湿地是人工湿地的一种独特类型。定义园林湿地为:在以隔离物为边界的空间范围内,构建具有协调建筑物和文化装饰的人工水景湿地,并具有审美、文化娱乐、休憩与居住等综合功能的自然—人文复合湿地系统。园林湿地具有不同的类型和结构,按风格可分为欧美西方园林与中国园林,古典园林与现代园林。苏州园林是中国古典园林的代表,具有极高的世界文化遗产价值。园林湿地是生态城市的重要基础,对城市可持续发展具有重要意义。

关键词：园林湿地定义结构与功能人工湿地

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基于结构照明和BP神经网络的三维物体识别

光电工程 2007年第8期34卷 115-120页

作者：王海霞陈峰赵新亮吕静洛阳师范学院物理与电子科学系河南洛阳471022

提出一种具有旋转不变性的三维物体识别的新方法,该方法通过结构光照明的方法,使物体的高度分布以变形条纹的形式编码于二维强度图中,由于条纹图包含有物体的高度分布信息,因此对条纹的相关识别具有本征三维识别的特点。旋转不变性是通... 详细信息

提出一种具有旋转不变性的三维物体识别的新方法,该方法通过结构光照明的方法,使物体的高度分布以变形条纹的形式编码于二维强度图中,由于条纹图包含有物体的高度分布信息,因此对条纹的相关识别具有本征三维识别的特点。旋转不变性是通过BP神经网络实现的。计算机模拟结果表明,用二维强度像的基频分量做训练样本设计BP神经网络,选择训练样本和隐藏层神经元的数目,基于结构光编码的BP神经网络对三维物体具有良好的旋转不变识别效果。

关键词：三维物体识别结构光照明旋转不变性 BP神经网络

综合交通体系下“十二五”水运发展方向的思考

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水运工程 2010年第2期 1-5页

作者：宋海良王海霞中交水运规划设计院有限公司北京100007

阐述水运在我国综合交通体系中的地位与作用,分析世界金融危机背景下我国"十二五"经济和产业发展方向及对水运发展的主要影响,对当前热点、难点问题进行了探讨与思考,最后提出了促进水运发展的对策与建议。

关键词：综合交通: “十二五” 经济与产业水运发展对策与建议

Enteromorpha prolifera polysaccharide-Fe(Ⅲ) complex promotes intestinal development as a new iron supplement

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Science China(Life Sciences) 2025年第1期68卷 219-231页

作者： Yingying Feng Yuying Wu Jialu wang Zhenglin Dong Qian Yu Shuangshuang xia Chunxue Liu haihua wang Xin Wu Tianjin Institute of Industrial Biotechnology Chinese Academy of SciencesTianjin 300308China CAS Key Laboratory of Agro-ecological Processes in Subtropical Region Institute of Subtropical AgricultureChinese Academy of SciencesChangsha 410125China ANYOU Biotechnology Group Co.Ltd Taicang 215412China Qingdao Seawin Biotech Group Co. LTDQingdao 266071China

Iron is a crucial micronutrient, and its deficiency can have detrimental effects on the health of infants. Dietary polysaccharide-iron(Ⅲ) complexes(PICs) are promising for addressing iron deficiency due to their minimal adverse reactions and high iron absorption rate. This study aimed to investigate the effects of dietary Enteromorpha prolifera polysaccharide-Fe(Ⅲ) complex(EP-Fe) on newborns, using 3-day weaned piglets as the iron-deficiency model. Results showed that EP-Fe improved iron levels and promoted intestinal development in piglets. Transcriptome sequencing revealed that EP-Fe increased the survival of intestinal epithelial cells under hypoxia by upregulating the expression of genes that promote the development of the vascular system. Additionally, EP-Fe enhanced the mucosal barrier functions by inhibiting myosin light chain kinase(MLCK)/phosphorylated myosin light chain(p-MLC) signaling pathway to increase the expression of intestinal tight junction proteins. Furthermore, the 16S r RNA gene sequencing of gut microbiota showed that EP-Fe promoted the enrichment of Bacteroides_fragilis and other gut microbes that can metabolize carbohydrates. In conclusion, EP-Fe is an effective iron supplement for newborns, and it can be developed as a comprehensive nutritional supplement.

关键词： Enteromorpha prolifera polysaccharide-Fe(III)complex iron deficiency intestinal development gut microbiota weaned piglet

Paving the Way towards Green Development:Impact of the Belt and Road Initiative on Electrification in Participating Countries

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China & World Economy 2025年第1期33卷 36-63页

作者： Mao Zhou Jiahui Wu xia wang Chang Liu School of International Business Southwestern University of Finance and Economics(SWUFE)China School of International Business SWUFEChina School of Public Finance and Taxation SWUFEChina Institute of Western China Economic Research SWUFEChina

Electrification is crucial for achieving global net zero emissions and reducing energy poverty, particularly in developing countries involved in the Belt and Road Initiative (BRI). This study uses the difference-in-differences method to examine the BRI's impact on electrification levels in 118 countries from 2009 to 2020. Its findings indicate that the BRI increased electrification in BRI countries by approximately 1 percent compared with non-BRI countries. This increase was driven primarily by enhanced trade and investments, which facilitated imports of power equipment and supported China-backed power-plant projects. The BRI's impact was more pronounced in Maritime Silk Road countries, high-income nations, and those with favorable business environments. Although the BRI promoted both renewable and nonrenewable power equipment imports, it primarily favored nonrenewable infrastructure investments. Given China's expertise in clean energy, there remains untapped potential for the BRI to prioritize renewable energy integration, fostering a sustainable and low-carbon future.

关键词： Belt and Road Initiative electrification level power equipment import.power plant investment

从代数学视角展开的随机概率序列事件分布函数预测研究

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湘潭大学自然科学学报 2012年第4期34卷 18-20页

作者：陈丽王海霞郑州师范学院数学与统计学院河南郑州450044

在工程应用研究中,存在已知整体概率分布,却无法确定概率序列事件的每一个概率事件的分布函数的问题.针对这一问题,将概率论理论与代数学理论相结合,确定了破解此类问题的思路.通过由浅入深的分析论证,最终给出了明确形式的概率分布函数... 详细信息

在工程应用研究中,存在已知整体概率分布,却无法确定概率序列事件的每一个概率事件的分布函数的问题.针对这一问题,将概率论理论与代数学理论相结合,确定了破解此类问题的思路.通过由浅入深的分析论证,最终给出了明确形式的概率分布函数,从而解决了此问题.

关键词：概率代数分布函数预测研究

Subretinal fibrosis secondary to neovascular age-related macular degeneration:mechanisms and potential therapeutic targets

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Neural Regeneration Research 2025年第2期20卷 378-393页

作者： Jingxiang Zhang xia Sheng Quanju Ding Yujun wang Jiwei Zhao Jingfa Zhang Department of Ophthalmology People’s Hospital of Huangdao DistrictQingdaoShandong ProvinceChina Department of Urology People’s Hospital of Huangdao DistrictQingdaoShandong ProvinceChina Department of Ophthalmology Shanghai General Hospital(Shanghai First People’s Hospital)Shanghai Jiao Tong University School of MedicineShanghaiChina National Clinical Research Center for Eye Diseases Shanghai Key Laboratory of Ocular Fundus DiseasesShanghai Engineering Center for Visual Science and PhotomedicineShanghai Engineering Center for Precise Diagnosis and Treatment of Eye DiseasesShanghaiChina

Subretinal fibrosis is the end-stage sequelae of neovascular age-related macular *** causes local damage to photoreceptors,retinal pigment epithelium,and choroidal vessels,which leads to permanent central vision loss of patients with neovascular age-related macular *** pathogenesis of subretinal fibrosis is complex,and the underlying mechanisms are largely ***,there are no effective treatment options.A thorough understanding of the pathogenesis of subretinal fibrosis and its related mechanisms is important to elucidate its complications and explore potential *** current article reviews several aspects of subretinal fibrosis,including the current understanding on the relationship between neovascular age-related macular degeneration and subretinal fibrosis;multimodal imaging techniques for subretinal fibrosis;animal models for studying subretinal fibrosis;cellular and non-cellular constituents of subretinal fibrosis;pathophysiological mechanisms involved in subretinal fibrosis,such as aging,infiltration of macrophages,different sources of mesenchymal transition to myofibroblast,and activation of complement system and immune cells;and several key molecules and signaling pathways participating in the pathogenesis of subretinal fibrosis,such as vascular endothelial growth factor,connective tissue growth factor,fibroblast growth factor 2,platelet-derived growth factor and platelet-derived growth factor receptor-β,transforming growth factor-βsignaling pathway,Wnt signaling pathway,and the axis of heat shock protein 70-Toll-like receptors 2/*** review will improve the understanding of the pathogenesis of subretinal fibrosis,allow the discovery of molecular targets,and explore potential treatments for the management of subretinal fibrosis.

关键词： choroidal neovascularization epithelial-mesenchymal transition mesenchymal transition myofibroblast neovascular age-related macular degeneration submacular fibrosis subretinal fibrosis therapeutic targets transforming growth factor-β vascular endothelial growth factor

具有接种疫苗年龄结构的SIRS流行病模型分析

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信阳师范学院学报（自然科学版） 2007年第4期20卷 395-398页

作者：王世飞王娟王海霞江苏工业学院信息科学系江苏常州213016 信阳师范学院数学与信息科学学院河南信阳464000 郑州师范高等专科学校河南郑州450044

建立和研究了具有接种疫苗年龄结构的SIRS流行病模型.运用微分方程和积分方程理论,得到一个与接种疫苗有关的再生数的表达式.证明了当R(0)1时,无病平衡态是不稳定的,此时存在一个地方病平衡态.最后给出地方病平衡态局部渐近稳定的条件.

关键词：接种疫苗年龄 SIRS流行病模型阈值平衡点稳定性