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Copyright of Science Technology & Engineering is the property of Chinese Society of Technology Economics and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Chongqing University of Technology (Natural Science) is the property of Chongqing University of Technology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Electronic Components & Materials is the property of Electronic Components & Materials and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

BACKGROUND: Full crowns have variable shapes and sizes, and are used for tooth restoration. This type of thin-walled parts usually requires high precision, light weight and thin wall thickness, but it is easy to deform during forming and reduce the accuracy of the workpiece. OBJECTIVE: To explore the influence of different energy densities on the deformation of titanium alloy full crowns, and obtain the optimal combination of process parameters for forming titanium alloy full crowns. METHODS: The full crown of Ti-6Al-4V titanium alloy was formed by selective laser melting. The influence of energy densities (77.38, 48.15, 32.83, 71.76, 46.97, 61.51, 68.18, 85.71, 55.56 J/mm3 ) on deformation was studied. The process parameters were optimized, and the parts printed after parameter optimization were heat treated. RESULTS AND CONCLUSION: Deformation experiments showed that a reasonable combination of process parameters could reduce the degree of deformation of the formed parts. When the energy density was 68.18 J/mm3 (laser power, scanning speed, and scanning distance were 180 W, 800 mm/s, 0.11 mm, respectively), the average value of deformation of the specimen formed at this energy density was 1.594 mm, which was smaller than the deformation of the cantilever beam at other energy densities. Under the optimized combined process parameters, the average amount of deformation after heat treatment was 0.355 mm; the average roughness was 8.306 μm; the average hardness was 345 HV, in line with industry standards. The research results provide experimental data and theoretical basis for forming high-quality thin-walled parts. [ABSTRACT FROM AUTHOR]

Copyright of Electronic Components & Materials is the property of Electronic Components & Materials and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Computer Engineering & Applications is the property of Beijing Journal of Computer Engineering & Applications Journal Co Ltd. and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Hebei University of Science & Technology is the property of Hebei University of Science & Technology, Journal of Hebei University of Science & Technology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Electronic Components & Materials is the property of Electronic Components & Materials and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Electronic Components & Materials is the property of Electronic Components & Materials and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Chinese Journal of Tissue Engineering Research / Zhongguo Zuzhi Gongcheng Yanjiu is the property of Chinese Journal of Tissue Engineering Research and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Chinese Journal of Tissue Engineering Research / Zhongguo Zuzhi Gongcheng Yanjiu is the property of Chinese Journal of Tissue Engineering Research and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

BACKGROUND: All-natural cardiac decellularized scaffold material has macroscopic and microstructure, matrix components and vascular network distribution similar to the receptor, which is an ideal material for heart tissue engineering. OBJECTIVE: To summarize the preparation methods, composition characteristics, biological characteristics and the latest research progress of cardiac decellularized matrix scaffold. METHODS: Relevant articles published from January 2008 to April 2017 were searched in PubMed and Wanfang databases using the keywords of “heart, cardiac muscle, myocardial tissue, decellularized matrix” in English and Chinese, respectively. Finally, 50 representative articles (44 in English and 6 in Chinese) were included with the exception of the articles that were associated with cardiac valves. RESULTS AND CONCLUSION: Currently, the methods of preparing cardiac decellular matrix scaffolds include physical processing, chemical method and biological treatment (enzymatic method). Cardiac extracellular matrix scaffolds mainly contain I, III and IV collagen, glycosaminoglycans, fibronectin, laminin and a small amount of growth factors. At present, the application of the decellular matrix in myocardial tissue engineering includes three directions: the "band-aid" myocardial tissue engineering study based on decellular matrix lamella; the study of the myocardial tissue engineering on injectable myocardial tissue engineering based on the decellular matrix; and the study of decellularized-recellularized artificial cardiac reengineering based on the cardiac all-organ. Although some successful experience has been achieved in the stents, their use in the cardiac replantation still has many problems to be solved. [ABSTRACT FROM AUTHOR]

Copyright of Chinese Journal of Tissue Engineering Research / Zhongguo Zuzhi Gongcheng Yanjiu is the property of Chinese Journal of Tissue Engineering Research and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Electronic Components & Materials is the property of Electronic Components & Materials and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Chinese Journal of Tissue Engineering Research / Zhongguo Zuzhi Gongcheng Yanjiu is the property of Chinese Journal of Tissue Engineering Research and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Chinese Journal of Tissue Engineering Research / Zhongguo Zuzhi Gongcheng Yanjiu is the property of Chinese Journal of Tissue Engineering Research and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)