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Validating the Existential Quest Scale using item response theory. [PDF]
Rizzo M +4 more
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Key roles of glial cells in the encephalopathy of prematurity. [PDF]
Van Steenwinckel J +9 more
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Let's do it: Response times in Mental Paper Folding and its execution. [PDF]
Dahm SF, Sachse P.
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Research on the Key Technology of Shearer Position
2010 International Conference on Intelligent System Design and Engineering Application, 2010According to the disadvantage of low precision and big error in previous shearer positioning system, the author proposes a new design concept: using the sensor information of shearer, scraper conveyor and hydraulic supports to define the shearer's position which is called "three-machine position", combining the sensor information of motion state and ...
Zhi-peng Xu, Zhong-bin Wang
exaly +2 more sources
Research on shearer positioning with double-INS
Sensor Review, 2019Purpose This paper aims to improve shearer positioning accuracy. Shearer positioning using an inertial navigation system (INS) is a highly useful technology; however, positioning accuracy is seriously hindered by INS attitude error, particularly heading drift.
exaly +2 more sources
Research and Design of Thin Seam Shearer Self-Turning Positioning System
Applied Mechanics and Materials, 2014Real-time positioning of thin seam shearer's working position is an important prerequisite to achieve thin seam mining face automation control. Based on the analysis of walking mechanism of thin seam shearer and the existing shearer positioning systems, a method was proposed by detecting the shaft angle with the improved thin seam shearer angle encoder.
Qing Liang Zeng, Zeng Qing Liang
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Tests and error analysis of a self-positioning shearer operating at a manless working face
Mining Science and Technology, 2010Abstract Self-positioning of a shearer is the key technology for mining with a man-less working face. In an underground coal mine all radio navigation; satellite positioning or celestial navigation methods have their limitations. We analyzed an inertial navigation system intended to guide the movement a shearer and designed a self-positioning device ...
Xinqiu FANG, Junjie ZHAO, Yuan HU
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Dynamic Precise Positioning Method of Shearer Based on Closing Path Optimal Estimation Model
IEEE Transactions on Automation Science and Engineering, 2019Longwall shearer positioning with an inertial navigation system (INS) aided by an odometer is the key technology for automation of the longwall coal mining process. In order to improve the shearer positioning accuracy without using external sensors, the closing path motion characteristics of a shearer working in a longwall mining face was summarized by
Shibo Wang
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A Loose Integrated Positioning Method of Longwall Shearer Assisted by INS and Laser Scanner
2021 28th Saint Petersburg International Conference on Integrated Navigation Systems (ICINS), 2021Qiangwen Fu, Sihai Li, Jiangtao Zheng
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