Results 41 to 50 of about 10,639 (264)
Mathematics, 2022 Measuring the straightness of the scraper conveyor, which is an indispensable piece of equipment in a fully mechanized coal face, can prevent accidents such as derailment of the shearer and is also important for the precise positioning of the shearer and
Jiakun Lv +6 more
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Digital twin: meeting the technical challenges of intelligent fully mechanized working face
Gong-kuang zidonghua, 2022 The goal and task of intelligent fully mechanized working face are to independently complete the reliable coal cutting of the fully mechanized working face, maintain the geometric relationship of the working face and reliable roof support.
GE Shirong +6 more
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Meikuang Anquan, 2022 Aiming at the problem of straightness detection of scraper conveyor in fully mechanized mining face, the straightness detecting method of a scraper conveyor based on combined inertial navigation is proposed.
YANG Bo, WU Ning
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GPS source solution of the 2004 Parkfield earthquake [PDF]
, 2014 We compute a series of finite-source parameter inversions of the fault rupture of the 2004 Parkfield earthquake based on 1 Hz GPS records only. We confirm that some of the co-seismic slip at shallow depth (
Dreger, D., Houlie, N., Kim, A.
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Energies, 2022 For effective mining, it is essential to ensure that the picks are positioned correctly on the working unit of a mining machine. This is due to the fact that the design of roadheader cutting heads/drums using computer-aided tools is based on the ...
Piotr Cheluszka, Amadeus Jagieła-Zając
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Coal-rock interface detector [PDF]
, 1979 A coal-rock interface detector is presented which employs a radioactive source and radiation sensor. The source and sensor are separately and independently suspended and positioned against a mine surface of hydraulic pistons, which are biased from an air
Crouch, C. E., Jones, E. W., Rose, S. D.
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Effect of chemotherapy on passenger mutations in metastatic colorectal cancer
Molecular Oncology, EarlyView.Changes in passenger mutation load and predicted immunotherapy response after chemotherapy treatment. Tumor cells rich with passenger mutations have increased sensitivity to chemotherapy. Correlation of passenger mutations with neoantigen load suggests highly mutated clones promote a more effective response to immunotherapy, and therefore, first‐line ...
Marium T. Siddiqui +6 more
wiley +1 more source
Gong-kuang zidonghua, 2019 In view of problem that existing mechanical compensation methods of lever arm effect ca't get angular acceleration information in real time, an improved method of lever arm effect error compensation was proposed on the basis of analyzing cause of lever ...
SI Zhuoyin, LI Wei, TONG Junling
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IEEE Access, 2020 Accurate positioning of the shearer remains a challenge for automation of the longwall coal mining process. In this paper, the popular Ultra-wideband (UWB) positioning system that has attracted considerable attention is adopted to obtain the target node ...
Bo Cao +4 more
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Effects of pH on Growth of Salvinia molesta Mitchell [PDF]
, 2005 Growth of giant salvinia ( Salvinia molesta Mitchell) under different pH regimes was examined at the Lewisville Aquatic Ecosystem Research Facility (LAERF) in Lewisville, Texas.(PDF has 5 pages.
Dick, Gary O. +3 more
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