采用高光谱技术结合化学计量法,对市面上常见的42种不同品牌、型号的黑色染料笔墨迹进行分类鉴别。首先,对42种黑色染料笔的墨迹样品进行450-950 nm区间的高光谱扫描;借助SPSS 26软件和Origin Pro 2023,采用系统聚类分析方法对墨迹样品...采用高光谱技术结合化学计量法,对市面上常见的42种不同品牌、型号的黑色染料笔墨迹进行分类鉴别。首先,对42种黑色染料笔的墨迹样品进行450-950 nm区间的高光谱扫描;借助SPSS 26软件和Origin Pro 2023,采用系统聚类分析方法对墨迹样品进行分类,并用主成分分析来验证分类的结果。对高光谱数据进行系统聚类分析,能将42种墨迹样品分为两大类共7小类,其中油基笔4类,水基笔3类;经主成分分析验证其分类效果合理。结果表明,高光谱技术结合化学计量法能够对黑色染料笔墨迹进行分类和鉴别,为实际案件中黑色染料笔墨迹的检验提供了技术支撑。展开更多
As the low-cost commercial product, writing inks(pen ink and Chinese ink) have attracted great attention to fabricate electrochemical electrodes for supercapacitors(SCs) and batteries. Due to the conductive nature der...As the low-cost commercial product, writing inks(pen ink and Chinese ink) have attracted great attention to fabricate electrochemical electrodes for supercapacitors(SCs) and batteries. Due to the conductive nature deriving from graphitic carbon nanoparticles in ink and strong adhesion, ink can be easily coated onto support to enhance the conductivity, form a porous layer facilitating electrolyte ion diffusion, increase the specific surface area and function as binder and dispersant for other active materials. In this review,the beneficial features of pen ink and Chinese ink are summarized and how these features favor the electrochemical performance is discussed in details. And then, ways to coat ink onto support are described,giving a clear understanding of recent process in this area. Finally, the current challenges and outlook of ink-based electrode are discussed, aiming to offer some basic knowledge and promote wide application and future study of pen ink and Chinese ink in electrochemistry.展开更多
Ink freehand brushwork is the soul and the highest level of artistic spirit in art categories such as painting and sculpture.Sculpture art and Chinese ink painting art have their own commonalities.I attempted to inves...Ink freehand brushwork is the soul and the highest level of artistic spirit in art categories such as painting and sculpture.Sculpture art and Chinese ink painting art have their own commonalities.I attempted to investigate the stone carvings of Huo Qubing’s tomb in the Western Han Dynasty,combined with Tang Dynasty tomb carvings,which greatly helped me in the creation of Chinese ink painting art.I drew inspiration and nutrients from it,and realized what is art.What is the spirit of art?You can find the answer from it.展开更多
文摘采用高光谱技术结合化学计量法,对市面上常见的42种不同品牌、型号的黑色染料笔墨迹进行分类鉴别。首先,对42种黑色染料笔的墨迹样品进行450-950 nm区间的高光谱扫描;借助SPSS 26软件和Origin Pro 2023,采用系统聚类分析方法对墨迹样品进行分类,并用主成分分析来验证分类的结果。对高光谱数据进行系统聚类分析,能将42种墨迹样品分为两大类共7小类,其中油基笔4类,水基笔3类;经主成分分析验证其分类效果合理。结果表明,高光谱技术结合化学计量法能够对黑色染料笔墨迹进行分类和鉴别,为实际案件中黑色染料笔墨迹的检验提供了技术支撑。
基金financial support of the Youth Fund of Natural Science Foundation of Jiangsu Province (BK20170919)the National Natural Science Foundation of China (21808112)the Scientific Research Foundation for Returned Scholars from Nanjing Forestry University (GXL2018014)。
文摘As the low-cost commercial product, writing inks(pen ink and Chinese ink) have attracted great attention to fabricate electrochemical electrodes for supercapacitors(SCs) and batteries. Due to the conductive nature deriving from graphitic carbon nanoparticles in ink and strong adhesion, ink can be easily coated onto support to enhance the conductivity, form a porous layer facilitating electrolyte ion diffusion, increase the specific surface area and function as binder and dispersant for other active materials. In this review,the beneficial features of pen ink and Chinese ink are summarized and how these features favor the electrochemical performance is discussed in details. And then, ways to coat ink onto support are described,giving a clear understanding of recent process in this area. Finally, the current challenges and outlook of ink-based electrode are discussed, aiming to offer some basic knowledge and promote wide application and future study of pen ink and Chinese ink in electrochemistry.
基金This article is part of the research results of the National Social Science Foundation’s major project in the field of art(Project number 21ZD12).
文摘Ink freehand brushwork is the soul and the highest level of artistic spirit in art categories such as painting and sculpture.Sculpture art and Chinese ink painting art have their own commonalities.I attempted to investigate the stone carvings of Huo Qubing’s tomb in the Western Han Dynasty,combined with Tang Dynasty tomb carvings,which greatly helped me in the creation of Chinese ink painting art.I drew inspiration and nutrients from it,and realized what is art.What is the spirit of art?You can find the answer from it.
