2024-030_Light ageing data on cochineal lakes on papers

This repository contains the experimental data about light ageing experiments performed on reconstructed paper samples with cochineal lakes. These experiments were performed by Gyu Yeong Lim in the context of her Master's thesis at the University of Amsterdam (Conservation and Restoration Department - Book and Paper Specialisation), under the supervision of Leila Sauvage (University of Amsterdam), Suzan de Groot and Gauthier Patin (Cultural Heritage Agency of the Netherlands) . The master of Gyu can be found via the following link: here ! The light ageing experiments involved two types of method for which the data are available in this repository: Light ageing inside a xenotest device Microfading analyses with two different devices The xenotest data are stored inside csv files and named as followed: <projectId>_<sampleId>_<groubNumber>_<shortDescription>. Group number 01 (G01) corresponds to the exposed areas while group number 02 (G02) corresponds to the covered areas of the samples. Except for the blue wool standard samples, there are two csv files for each sample Id - one for the exposed area and another one for the covered area. During each measurement round, three measurements were performed on each area. The data shared in this repository are the average and standard deviation values. The microfading data are stored inside excel files inside two folders: interim and processed. Each interim file corresponds to a single microfading analyses and is named as followed: <projectId>_<analysisId>_<groupNumber>_<sampleColour>_<sampleType>_<measurementDate>_<deviceId>. A processed file relates to one or more interim files on which further data processing has been performed. For each sample and each device, three microfading analyses were performed for which the mean and standard deviation values were computed. Thus in our case, each processed data file corresponds to the average values of three interim files. The processed files are named as followed: <projectId>_<analysisId>_<dataInfo>_<sampleColour>_<sampleType>_<measurementDate>_<deviceId>. The analysisId parameter is constructed as followed: MF.<objectId>.<measurementNb or groupNb>, e.g: MF.FR-G.G02, this means that the file corresponds to all the interim microfading (MF) analyses of group G02 performed on object FR-G. More information about the preparation of the samples and the parameters of the ageing experiments can be found in Gyu's thesis (section 3).本仓库收录了针对胭脂虫色淀（cochineal lakes）再生纸试样开展的光老化实验相关实验数据。该实验由林奎荣（Gyu Yeong Lim）在阿姆斯特丹大学保护与修复系——书籍与纸张修复专业方向的硕士学位论文研究中完成，指导教师为莱拉·索瓦热（Leila Sauvage，阿姆斯特丹大学）、苏珊·德·格鲁特（Suzan de Groot）与戈蒂埃·帕坦（Gauthier Patin，荷兰文化遗产局）。林奎荣的硕士学位论文可通过以下链接获取：此处！ 本次光老化实验包含两类可在本仓库获取对应数据的研究方法： 1. 氙灯老化试验仪（xenotest device）内光老化实验 2. 两种不同设备的微褪色分析（microfading analyses） 氙灯老化实验数据存储于csv文件中，命名格式为：<projectId>_<sampleId>_<groupNumber>_<shortDescription>。其中组号01（G01）对应试样的曝光区域，组号02（G02）对应试样的遮盖区域。除羊毛蓝标标准样品外，每个样品ID对应两份csv文件，分别对应曝光区域与遮盖区域。每轮测量中，每个区域会开展三次重复测量，本仓库共享的数据为三次测量的平均值与标准差。 微褪色分析数据存储于两个文件夹（暂存数据interim、处理后数据processed）内的Excel文件中。每份暂存文件对应单次微褪色分析，命名格式为：<projectId>_<analysisId>_<groupNumber>_<sampleColour>_<sampleType>_<measurementDate>_<deviceId>。处理后文件对应一份或多份经进一步数据处理的暂存文件。针对每个样品与每台设备，均开展三次微褪色分析并计算其平均值与标准差，因此本仓库中的每份处理后数据文件对应三次暂存文件的平均结果。处理后文件的命名格式为：<projectId>_<analysisId>_<dataInfo>_<sampleColour>_<sampleType>_<measurementDate>_<deviceId>。分析ID的构建规则为：MF.<objectId>.<measurementNb or groupNb>，例如MF.FR-G.G02，代表该文件对应于对象FR-G上开展的G02组所有暂存微褪色（MF）分析。 关于试样制备与老化实验参数的更多细节，可查阅林奎荣的硕士学位论文第3章节。