Zobrazeno 1 - 4
of 4
pro vyhledávání: '"TIAN Zi-jia"'
Publikováno v:
Gong-kuang zidonghua, Vol 39, Iss 1, Pp 9-12 (2013)
Traditional homomorphic filtering function is based on high pass filler, and images processed by the function are dark. The paper analyzed image filtering result by traditional low pass filter at cut-off frequency radius of 5, and got a conclusion th
Externí odkaz:
https://doaj.org/article/d1106e961b6b4e328e90a8bd86f501c4
Autor:
TIAN Zi-jia
Publikováno v:
Gong-kuang zidonghua, Vol 39, Iss 3, Pp 40-42 (2013)
The current two causes of poor train quality of coal special operators were analyzed. It was indicated that the main cause of ineffective training of coal special operators was backwardness of training means. The defect of training and teaching softw
Externí odkaz:
https://doaj.org/article/7aaa63e375424c0c8f2397af313f7308
Autor:
TIAN Zi-jian, PENG Xia
Publikováno v:
Gong-kuang zidonghua, Vol 39, Iss 7, Pp 43-46 (2013)
The paper designed a kind of left-handed material with the structure of double triangles and resonance ring，and proved that material has properties of electromagnetic left-handed material by theoretical calculation and simulation experiment. It loa
Externí odkaz:
https://doaj.org/article/73c3154e6d1f4a95a0a509cb14023403
Publikováno v:
Gong-kuang zidonghua, Vol 39, Iss 5, Pp 49-52 (2013)
In view of problems that coal-rock interface sensor has complicated structure, low reliability and universality in existing coal-rock identification method, the paper proposed a solution of coal-rock interface identification system based on machine v
Externí odkaz:
https://doaj.org/article/af9ff9870ede4de78ea99715b6b3a8b6