Pub Date : 2017-07-20DOI: 10.13929/J.1003-3289.201701047
Yi-zhuo Li, Huayu Li, Zhi-feng Qin, Chunyan Cui, C. Xie, Yao-pan Wu, Rong Zhang, Pei-Hong Wu
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Kapok fiber is natural half-transparent hollow tube whose inner and outer diameters are 18 and 20 mm, respectively. This fiber excels in water repellence and absorbs oil due to the capillary force. In addition, the hollow rate of this fiber is higher than those of conventional synthetic fibers. The focus of this present work is to develop a novel paper sheet which integrating Kapok fibers containing chromic materials. The solvent which contains chromic materials was absorbed into Kapok fibers due to the capillary force. We found that the paper sheet exhibits reversible color change.
{"title":"Security Paper Sheets Using Kapok Fibers Containing Chromic Materials","authors":"Shuichi Kiyama, S. Maeda","doi":"10.11413/NIG.54.023","DOIUrl":"https://doi.org/10.11413/NIG.54.023","url":null,"abstract":"Kapok fiber is natural half-transparent hollow tube whose inner and outer diameters are 18 and 20 mm, respectively. This fiber excels in water repellence and absorbs oil due to the capillary force. In addition, the hollow rate of this fiber is higher than those of conventional synthetic fibers. The focus of this present work is to develop a novel paper sheet which integrating Kapok fibers containing chromic materials. The solvent which contains chromic materials was absorbed into Kapok fibers due to the capillary force. We found that the paper sheet exhibits reversible color change.","PeriodicalId":35510,"journal":{"name":"中国医学影像技术","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72951083","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Hirotomo Nakabayashi, S. Suga, Shuichi Kiyama, A. Kuroda, S. Maeda
When we consider viewing the surface of human skin, the skin gives us a sense of natural depth, while, in contrast, the surface of a plastic does not. In our research program, learning from the structure of human skin, we fabricated screens which consist of multilayers made of translucent sheets coated with TiO2 nanoparticles. The feeling of natural depth from the screen can be considered to come from the multiply-observed images produced by phase differences due to the translucent multi layers. Additionally, we think that the feeling of natural depth from our 3D imaging screen comes from the reflection/diffusion differences of light depending on its wavelength as well as human skin. This is because that the spectral distribution measurements of these translucent sheets suggest that blue light with short wavelength is scattered on the surface of the first layer, while red light with long wavelength permeates to the under layers. The screen has a number of potential applications, since it is easy to prepare, low cost, and applicable to a large area. One of promising candidates is, of course, in the application as 3D projection screen. This is because 2D images projected on the screen can be automatically transformed into 3D images with a stereoscopic background. And considering that this system is applicable to not only reflection type but also transmission type, one of interesting candidates is for use in pseudo windows. By connecting an external camera, the screen can be utilized as a pseudo window on a real wall. The pseudo window can be expected to provide an open feeling while keeping high heat insulation, sound insulation, and privacy.
{"title":"Projection Screen Inspired by Human Skin for Use in Pseudo Windows","authors":"Hirotomo Nakabayashi, S. Suga, Shuichi Kiyama, A. Kuroda, S. Maeda","doi":"10.11413/NIG.54.027","DOIUrl":"https://doi.org/10.11413/NIG.54.027","url":null,"abstract":"When we consider viewing the surface of human skin, the skin gives us a sense of natural depth, while, in contrast, the surface of a plastic does not. In our research program, learning from the structure of human skin, we fabricated screens which consist of multilayers made of translucent sheets coated with TiO2 nanoparticles. The feeling of natural depth from the screen can be considered to come from the multiply-observed images produced by phase differences due to the translucent multi layers. Additionally, we think that the feeling of natural depth from our 3D imaging screen comes from the reflection/diffusion differences of light depending on its wavelength as well as human skin. This is because that the spectral distribution measurements of these translucent sheets suggest that blue light with short wavelength is scattered on the surface of the first layer, while red light with long wavelength permeates to the under layers. The screen has a number of potential applications, since it is easy to prepare, low cost, and applicable to a large area. One of promising candidates is, of course, in the application as 3D projection screen. This is because 2D images projected on the screen can be automatically transformed into 3D images with a stereoscopic background. And considering that this system is applicable to not only reflection type but also transmission type, one of interesting candidates is for use in pseudo windows. By connecting an external camera, the screen can be utilized as a pseudo window on a real wall. The pseudo window can be expected to provide an open feeling while keeping high heat insulation, sound insulation, and privacy.","PeriodicalId":35510,"journal":{"name":"中国医学影像技术","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85036081","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
P. Chawakitchareon, A. Hansuebsai, Krisada Jaewjareon, Visan Chatrapanichkul, Wasisnun Sooksamai
Waste management is one of the biggest environmental issues faced by printing industry today.This paper investigates and characterizes all waste materials in Chulalongkorn University Printing House (CU Printing House), Bangkok, Thailand. This research selects CU Printing House as a case study, which represents a small and medium scale of printing house. All wastes materials in the CU Printing House were segregated and classified into non-hazardous waste and hazardous waste. Waste code was applied and coded according to the Industrial Work Department, Ministry of Industry, Thailand. We conducted a waste audit and measured the amount and type of wastes which were generated, then work out how these could be minimised. This paper presents an example of waste characterization of CU printing house. Waste management strategy i.e. waste audit and waste code were applied for all wastes generated. The amount of wastes and type of wastes were also reported. This study proposed a guideline for good waste management applies to CU Printing House.
{"title":"Environmental Waste Management for the Printing Industry: A Case Study of CU Printing House, Thailand","authors":"P. Chawakitchareon, A. Hansuebsai, Krisada Jaewjareon, Visan Chatrapanichkul, Wasisnun Sooksamai","doi":"10.11413/NIG.54.043","DOIUrl":"https://doi.org/10.11413/NIG.54.043","url":null,"abstract":"Waste management is one of the biggest environmental issues faced by printing industry today.This paper investigates and characterizes all waste materials in Chulalongkorn University Printing House (CU Printing House), Bangkok, Thailand. This research selects CU Printing House as a case study, which represents a small and medium scale of printing house. All wastes materials in the CU Printing House were segregated and classified into non-hazardous waste and hazardous waste. Waste code was applied and coded according to the Industrial Work Department, Ministry of Industry, Thailand. We conducted a waste audit and measured the amount and type of wastes which were generated, then work out how these could be minimised. This paper presents an example of waste characterization of CU printing house. Waste management strategy i.e. waste audit and waste code were applied for all wastes generated. The amount of wastes and type of wastes were also reported. This study proposed a guideline for good waste management applies to CU Printing House.","PeriodicalId":35510,"journal":{"name":"中国医学影像技术","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82642355","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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