铅笔铝箍环涂色的机械化实现

介绍铅笔铝箍涂色环机构的设计及工作原理，保证了涂色质量，提高涂色效率。     

Digital canvas removal in paintings

The periodic structure of the underlying support of paintings on canvas can become quite prominent and disturbing in high resolution digital recordings. In this paper, we construct a new model and method for the digital removal of canvas which is considered as a noise component superimposed on the painting artwork. The high resolution of the images prohibits the efficient application of existing adaptive denoising filters. Hence, a two-step approach is proposed. First a (smoothing) Wiener filter is applied to the complete image. The second step consists of a spatially adaptive extension with low-complexity to obtain a generic digital canvas removal filter.     

背景典型斑点特征的聚类分析

迷彩是一项重要的目标防护手段,斑点形状设计是进行迷彩设计的基础。首先自动提取背景图像中的明显斑点,然后分析背景斑点周长、面积、伸长度、矩形度、细长度、分散度等特征的统计特性,最后将长度、矩形度、细长度、分散度作为斑点特征向量对提取出的背景斑点进行HCM聚类分析,进而得到背景典型斑点的特征参数。该方法能得到大样本背景图像斑点特征的统计特征,对自动、定量化的迷彩设计具有一定意义。     

Multicomponent (Hf0.25Zr0.25Ti0.25Cr0.25)B2 ceramic modified SiC–Si composite coatings: In-situ synthesis and high-temperature oxidation behavior

High-entropy ceramics, a novel type of multicomponent materials with broad application prospects, have stirred up world-wide interests for over a decade. In the current work, in-situ high-entropy (Hf_0.25Zr_0.25Ti_0.25Cr_0.25)B₂ ceramic modified SiC–Si (HETMB₂-SiC-Si) coating was deposited on carbon/carbon (C/C) composites via gaseous reactive infiltration of Si assisted slurry painting (GRSI-SP) method, to improve the oxidation protective ability of C/C composites at 1973 K. The formation and oxidation mechanisms of the coating was explored by first-principles simulation, experiment and thermodynamic analyses. The coating prepared at 2373 K shows dense mosaic structure filled with HETMB₂-rich Si-based multiphase. This coating adheres well with the C/C substrate, which is ascribed to the formed zigzagged SiC–Si transition layer. This coating protected C/Cs from oxidation for more than 205 h at 1973 K. The enhanced oxidation protective ability is mostly ascribed to the subsequently generated compact and stable Hf-Zr-Ti-Cr-Si-O composite oxidation scale. This research will start up novel research ares of developing high-entropy materials modified coatings with improved protective ability under extreme environments.     

海洋工程应用水下涂装防污涂料的研究

将叠氮基团接枝到环氧树脂上以提高环氧树脂的湿态附着强度,然后将其与环氧树脂618按不同比例复配制备成水下涂装防污涂料,并对涂料的附着强度、铜离子渗出率及海洋防污性能进行研究。研究表明,随着叠氮化环氧树脂用量的增加,水下防污涂层的附着强度先升高后降低;铜离子渗透出率测定和实海浸泡表明该水下涂装防污涂料具有一定的防污性能。     

浅谈汽车涂装中影响涂装环境的关键因素

介绍了影响涂装环境的三大主要因素的定义、检测方法及检测标准,并简要介绍了上汽依维柯红岩重卡涂装线所采用的检测手段及频次。     

炉温测定过程中问题产生的原因及解决方法

描述了某新建工厂涂装车间烘干炉炉温测定过程中遇到的若干问题及问题的解决。     

浅议柯布西耶的建筑与绘画

勒·柯布西耶是二十世纪建筑界杰出的人物．通过探讨柯布西耶的绘画与建筑的关系,找寻其间的联系和相互作用,有助于深刻地理解柯布西耶的建筑,理解其深层的观念、精神实质及其突出的创作与巨大成就的原因。     

图底关系在建筑空间研究中的应用

图底关系是重要的心理学概念,也是造型艺术活动的重要工具.从绘画艺术中图底关系的发展演变展开讨论,继而将视角聚焦于建筑,通过对建筑作品的研读,针对画框、图、底三个要素加以分析,并提炼出这些设计作品的空间组织逻辑,将其应用于设计教学中.