Results 81 to 90 of about 1,583 (195)

Research on extraction of image gray information and texture features of coal and gangue image

open access: yesGong-kuang zidonghua, 2017
In view of problems of low identification accuracy and efficiency existed in most recognition method of coal and gangue image which only used gray mean and gray variance, an extraction method of gray information and texture features of coal and gangue ...
TAN Chunchao, YANG Jieming
doaj   +1 more source

Research on Image Segmentation and Defogging Technique of Coal Gangue Under the Influence of Dust Gradient

open access: yesApplied Sciences
To address the challenges of low accuracy in coal gangue image recognition and poor segmentation performance under the influence of dust in underground coal mines, a scaled simulation platform was constructed to replicate the longwall top coal caving ...
Zhenghan Qin   +5 more
doaj   +1 more source

Automatic control system of top coal caving on fully-mechanized coal mining face

open access: yesGong-kuang zidonghua, 2015
In view of problems of large randomness, low efficiency of coal caving of artificial operation for top coal caving mining face, an automatic control system of top coal caving on fully-mechanized coal mining face was designed.
WEI Wenya
doaj   +1 more source

Research on vision system of intelligent sorting robot based on deep learning [PDF]

open access: yes
It is an important step to realize automatic and intelligent production of coal mine to use intelligent sorting robot instead of manual. The vision system, as the “eye” of the intelligent sorting robot, completes the rapid identification, positioning and
Huang, B. W.   +3 more
core   +1 more source

Iron, Fuel and Slags: Reconstructing the Ironworking Process in Iberian Iron Age (Valencian Region) [PDF]

open access: yes
In this paper we present the archaeological data related to ironworks in the territory of Kelin (4th-3rd centuries BC). We have analysed the different phases of the process through the distribution of raw materials, iron oxides, production waste and ...
Ferrer Eres, Miguel Ángel   +2 more
core  

History of research in mineral resources : [35th Conference of the International Commission on the History of Geological Sciences, Madrid y Almadén(España), 1-14 julio 2010] [PDF]

open access: yes, 2010
The study of the research history of geological resources is one of the main objectives of the International Commission on the History of Geological Sciences (INHIGEO), which was created in 1967 within the International Union of Geological Sciences (IUGS)
Mazadiego Martínez, Luis Felipe   +3 more
core   +1 more source

China and East Asian Energy : Prospects and Issues [PDF]

open access: yes
In October 2005, the Crawford School (then the Asia Pacific School of Economics and Government) within the Australian National University (ANU) initiated a major research project on China and East Asian Energy.
Dominic Meagher   +2 more
core   +1 more source

Improved ORB-FLANN efficient matching method for coal gangue image

open access: yesMeitan kexue jishu
In order to solve the problem of grasping failure or missing grasping due to the change of target gangue position and posture caused by belt slip, deviation and belt speed fluctuation of belt conveyor when the gangue sorting robot sorts gangue, an ...
Hongwei MA   +6 more
doaj   +1 more source

Towards an ethical jewellery business [PDF]

open access: yes, 2003
This report presents the results of phase 1 of research which is intended to identify the main social, environmental and ethical issues in the jewellery sector and to assist industry bodies in identifying how to integrate ethical considerations into ...
Macfarlane, Magnus   +2 more
core  

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