http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
AR based ornament design system for 3D printing
Aoki, Hiroshi,Mitanin, Jun,Kanamori, Yoshihiro,Fukui, Yukio Society for Computational Design and Engineering 2015 Journal of computational design and engineering Vol.2 No.1
In recent years, 3D printers have become popular as a means of outputting geometries designed on CAD or 3D graphics systems. However, the complex user interfaces of standard 3D software can make it difficult for ordinary consumers to design their own objects. Furthermore, models designed on 3D graphics software often have geometrical problems that make them impossible to output on a 3D printer. We propose a novel AR (augmented reality) 3D modeling system with an air-spray like interface. We also propose a new data structure (octet voxel) for representing designed models in such a way that the model is guaranteed to be a complete solid. The target shape is based on a regular polyhedron, and the octet voxel representation is suitable for designing geometrical objects having the same symmetries as the base regular polyhedron. Finally, we conducted a user test and confirmed that users can intuitively design their own ornaments in a short time with a simple user interface.
Eri Kumai,Fuyumi Shimono,Manabu Tanaka,Takayuki Watanabe,Takeshi Hoshino,Satoshi Hosoda,Hiroshi Kanamori,Yuji Fujita 한국공업화학회 2022 Journal of Industrial and Engineering Chemistry Vol.107 No.-
Oxygen-deficient tungsten oxide is one of the promising materials for broad applications due to itsenhanced characteristics owing to the oxygen-deficiency. Development of a mass production process iscrucial in consideration of the increasing demand of this material in industrial purposes. A continuousscrew reactor was employed to the production of oxygen-deficient tungsten oxide. The effects of hydrogenconcentration and the reduction time on the composition of products were investigated. The maximumWO2.72 mole fraction of 0.95 was achieved by optimum hydrogen concentration and reductiontime. X-ray Photoelectron Spectroscopy (XPS) spectra of the products indicated the introduction ofoxygen-deficiency. Anisotropic crystal growth in the (010) direction is found in the cross-section observationby Scanning Electron Microscope (SEM). The displacing value from High-Resolution TransmissionElectron Microscope (HR-TEM) demonstrated the existence of WO2.72. The reaction kinetic was investigatedby thermogravimetric analysis. Estimated activation energy supported the results from the continuousprocess. This work suggests the promising process for the large-scale production of functionalmaterials.