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Full-Text Articles in Other Engineering

Comparative Study Of The Structure Of Castings Fromwear Resistant Chuguns, Ganiyev Y.U., Jumaev Akhmat, Komilov J.M., Khudoyberdiyev R.Kh. Jun 2019

Comparative Study Of The Structure Of Castings Fromwear Resistant Chuguns, Ganiyev Y.U., Jumaev Akhmat, Komilov J.M., Khudoyberdiyev R.Kh.

Gorniy vestnik Uzbekistana

In this article, white wear-resistant cast irons of the grades 280H29NL and 300H32N2M2TL are investigated, the chemical compositions and their structures are compared. It has a composition close to eutectic, but is prone to brittle chipping. At high magnifications in the metal base, the places of chipping are found, and where the chipping has not yet passed, gray sulphides are clearly visible. The carbide sizes of the cast irons under investigation vary widely from 8.6 μm to 31 μm.


A Practitioner’S Guide To Small Unmanned Aerial Systems For Bridge Inspection, Sattar Dorafshan, Robert J. Thomas, Calvin Coopmans, Marc Maguire Jan 2019

A Practitioner’S Guide To Small Unmanned Aerial Systems For Bridge Inspection, Sattar Dorafshan, Robert J. Thomas, Calvin Coopmans, Marc Maguire

Durham School of Architectural Engineering and Construction: Faculty Publications

Small unmanned aerial system(s) (sUAS) are rapidly emerging as a practical means of performing bridge inspections. Under the right condition, sUAS assisted inspections can be safer, faster, and less costly than manned inspections. Many Departments of Transportation in the United States are in the early stages of adopting this emerging technology. However, definitive guidelines for the selection of equipment for various types of bridge inspections or for the possible challenges during sUAS assisted inspections are absent. Given the large investments of time and capital associated with deploying a sUAS assisted bridge inspection program, a synthesis of authors experiences will be …