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精纺毛粘混纺素色织物折痕现象分析及处理
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作者 李郁文 《上海纺织科技》 北大核心 2001年第6期34-35,共2页
分析了精纺毛粘混纺素色织物后整理产生折痕现象的原因 ,提出了预防措施及处理办法。
关键词 毛粘织物 折痕 素色织物 混纺织物 质量控制 后整理
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基于图像处理的素色机织物密度识别 被引量:5
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作者 武银飞 徐帅 周红涛 《棉纺织技术》 CAS 北大核心 2020年第12期17-20,共4页
探讨基于数字图像处理技术的素色机织物密度自动识别方法。采用数字图像处理技术采集机织物彩色图像,经图像灰度化、选取定点、经纬纱方向纠偏与裁剪、计算经纬纱亮度投影曲线、确定经纬纱纱线间隙位置等步骤,最终实现机织物经纬密度的... 探讨基于数字图像处理技术的素色机织物密度自动识别方法。采用数字图像处理技术采集机织物彩色图像,经图像灰度化、选取定点、经纬纱方向纠偏与裁剪、计算经纬纱亮度投影曲线、确定经纬纱纱线间隙位置等步骤,最终实现机织物经纬密度的自动识别,并与人工目测法进行比较。结果表明:图像法测量准确度高、时间短、效率高,对平纹、斜纹、缎纹素色织物有较好的适应性。认为:该方法可用于素色机织物密度的自动识别。 展开更多
关键词 素色织物 图像处理技术 织物密度 亮度值 灰度图像 织物检测
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一种通用的机织物密度图像自动识别方法 被引量:1
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作者 武银飞 李桂付 +1 位作者 周红涛 赵磊 《棉纺织技术》 CAS 北大核心 2022年第3期24-27,共4页
探讨一种通用的机织物经密纬密图像自动识别方法。采用数字图像处理技术采集机织物彩色图像,经图像灰度化、经纱纬纱方向纠偏、经纱纬纱亮度投影曲线、漏检与去异常点、单根经纱纬纱分割等步骤,最终实现机织物经密纬密的自动识别,根据... 探讨一种通用的机织物经密纬密图像自动识别方法。采用数字图像处理技术采集机织物彩色图像,经图像灰度化、经纱纬纱方向纠偏、经纱纬纱亮度投影曲线、漏检与去异常点、单根经纱纬纱分割等步骤,最终实现机织物经密纬密的自动识别,根据相邻纱线间隙位置差与均值的比值实现纱线颜色突变漏检与去异常点。结果表明:颜色突变系数、异常点突变系数能准确实现漏检和去异常点,实现单根纱线正确分割,图像法测量准确度高、速度快、效率高。认为:该图像自动识别方法对素色机织物、单色机织物、多色机织物及印花织物均有较好的适应性。 展开更多
关键词 素色织物 单色机织物 多色机织物 图像处理 织物密度
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Matching Dyeing and Properties of Silk Fabrics with Natural Edible Pigments
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作者 CHEN Yangyi ZHOU Shihang +4 位作者 SU Tong LI Jingzhi CHEN Hongshan QI Huan QIU Yiping 《Journal of Donghua University(English Edition)》 CAS 2024年第4期428-435,共8页
The silk fabrics were matching dyed with three natural edible pigments(red rice red,ginger yellow and gardenia blue).By investigating the dyeing rates and lifting properties of these pigments,it was observed that thei... The silk fabrics were matching dyed with three natural edible pigments(red rice red,ginger yellow and gardenia blue).By investigating the dyeing rates and lifting properties of these pigments,it was observed that their compatibilities were excellent in the dyeing process:dye dosage 2.5%(omf),mordant alum dosage 2.0%(omf),dyeing temperature 80℃and dyeing time 40 min.The silk fabrics dyed with secondary colors exhibited vibrant and vivid color owing to the remarkable lightness and chroma of ginger yellow.However,gardenia blue exhibited multiple absorption peaks in the visible light range,resulting in significantly lower lightness and chroma for the silk fabrics dyed with tertiary colors,thus making it suitable only for matte-colored fabrics with low chroma levels.In addition,the silk fabrics dyed with these three pigments had a color fastness that exceeded grade 3 in resistance to perspiration,soap washing and light exposure,indicating acceptable wearing properties.The dyeing process described in this research exhibited a wide range of potential applications in matching dyeing of protein-based textiles with natural colorants. 展开更多
关键词 matching dyeing silk fabric natural edible pigment secondary color tertiary color
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圆型针织物和机械设备变量对染色或成品针织物的典型影响
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作者 G.W.Smith H.H.Hergath +4 位作者 F.daSilva Senai-Cetiqt M.A.A.Martin M.T.Kaltex 倪跃发 《国际纺织导报》 2004年第1期49-51,共3页
圆型针织结构品种繁多 ,本文只述及若干种平纹结构和在织物生产、染色或后整理过程中会产生问题的某些变量。因此 ,本文主要谈论与以下内容相关的若干问题 :素色单面平针织物、彩条平针和平针凹凸织物。
关键词 圆型针织物 生产工艺 染色 后整理 设备变量 素色单面平针织物 彩条平针 平针凹凸织物
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The miRNA expression profile of the uveal melanoma 被引量:17
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作者 YANG ChengHsun 《Science China(Life Sciences)》 SCIE CAS 2011年第4期351-358,共8页
The miRNA expression profile was initially established to investigate its corresponding function in human uveal melanoma. The miRNA expression profile in human uveal melanoma was analyzed by a micro chip technique.The... The miRNA expression profile was initially established to investigate its corresponding function in human uveal melanoma. The miRNA expression profile in human uveal melanoma was analyzed by a micro chip technique.The hsa-miRNA expression between four uveal melanomas and four normal uveal tissues was compared.Based on the bioinformatic approach,chip data was analyzed to select out differentially expressed candidate hsa-miRNAs.Real-time quantitative PCR(RT-PCR) was used to confirm the candidate hsa-miRNAs expression in all samples.The results of miRNA microarray chips that matched with RT-PCR were considered as the miRNA expression which was significantly different between normal tissue and uveal melanomas.In four uveal melanomas,expressions of miRNA-20a,miRNA-106a,miRNA-17,miRNA-21,and miRNA-34a were significantly up-regulated,while miRNA-145 and miRNA-204 expression were significantly down-regulated.We used miRNA microarray analysis as a fast,efficient technology to study biological information.The differentially expressed miRNAs may be involved in uveal melanoma pathogenesis,and may help promote the diagnosis and treatment for uveal melanoma. 展开更多
关键词 uveal melanoma MIRNA microRNA microarray target gene TUMORIGENESIS
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