Results 21 to 30 of about 34,275 (265)

Discrete element method simulations of load behavior with mono-sized iron ore particles in a ball mill

Advances in Mechanical Engineering, 2017
Aiming at addressing the load behavior of iron ore particles in a ball mill, a design of experimental method was used to define a series of discrete element method simulation conditions with two factors being the mill speed and lifter height.
Yuxing Peng, Tongqing Li, Zhencai Zhu, Shengyong Zou, Zixin Yin   +4 more
doaj   +1 more source

Numerical Analysis on Non-Uniform Thrust System in EPB Shield Machine Applied in Beijing Metro Line 6

IEEE Access, 2019
This paper is to investigate the mechanical characteristics of non-equidistant thrust system in an EPB shield machine with a diameter of 6.15 m applied in Beijing Metro Line 6 construction.
Kongshu Deng, Lu Zeng, Yicheng Ding, Zhurong Yin   +3 more
doaj   +1 more source

Mining Equipment Technical Condition Monitoring [PDF]

E3S Web of Conferences, 2018
The Earth, being the main object and operational basis for mining, is exposed to the greatest impact because of extracting minerals. Protection of elements of the biosphere, including subsoil, should provide for the provision of scientifically based and economically justified completeness and complexity of use. The article discusses the need to monitor
Kuzin Evgeny, Bakin Vladimir, Dubinkin Dmitriy   +2 more
openaire   +2 more sources

Raman Microscopy at the Organic–Inorganic Interfaces in Human Calcified Aortic Valves Shows the Co‐Existence of Whitlockite Crystals and Carbonated Hydroxyapatite‐Mineralized Collagen Fibrils

Advanced Functional Materials, EarlyView.
This study advances our understanding of aortic valve stenosis by capturing spatially resolved chemical and structural changes at the nanoscale. The findings highlight the potential of combined Raman and electron microscopy for understanding calcification mechanisms across diverse tissue types.
Robin H. M. Van der Meijden, Carolien T. A Kuster, Amber van Broekhoven, Raphaela Allgayer, Luco Rutten, Rona Roverts, Marta Cerruti, Elena Macías‐Sánchez, Jan Hein Cornel, Salloua el Messaoudi, Anat Akiva, Nico Sommerdijk   +11 more
wiley   +1 more source

Research on Image Detection of Thin-Vein Precious Metal Ores and Rocks Based on Improved YOLOv8n

Applied Sciences
To address the high-dilution issues arising from efficient mining methods such as medium-deep drilling for underground thin veins of precious metals, detecting raw rock fragments after blasting for subsequent sorting has become a cutting-edge research ...
Heyan Zhou, Yuanhui Li, Yunsen Wang, Hong Zhou, Kunmeng Li   +4 more
doaj   +1 more source

Concept, realization path and key technologies of intelligent mining based on transparent longwall face

Gong-kuang zidonghua, 2020
Taking transparent coal seam, transparent fully-mechanized mining equipment and transparent decision-making and control as core, concept of intelligent mining based on transparent longwall face was put forward, namely based on enhanced geological ...
WANG Feng
doaj   +1 more source

Copper‐Based Crystalline‐Metallic Glass Composite Thin Films: A Novel Material with Enhanced Strength and Thermally Stable Nanotwins

Advanced Functional Materials, EarlyView.
A Cu‐based crystal‐glass composite with high‐density twins is identified by a fast screening technique using combinatorial sputtering together with XRD and nanoindentation mapping. This bamboo‐like structure demonstrates homogenous plastic flow and retains high strength during in situ high temperature tests, up to 1 GPa at 550°C, owing to those ...
Chunhua Tian, Amit Sharma, Krzysztof Wieczerzak, Alexander Groetsch, Manish Jain, Nicolò Maria della Ventura, Remo Widmer, Fedor F. Klimashin, Johann Michler, Jakob Schwiedrzik, Xavier Maeder   +10 more
wiley   +1 more source

Numerical analysis of dynamic behavior of falling rock block impact against soil-rock mixture by coupling DEM-FDM approach

Scientific Reports
Rockfall, as a common geological hazard, exhibits extremely complex impact dynamic behaviors that are significantly influenced by factors like the impact falling height and the composition of soil layers.
Yulong Zhang, Qiwen Guo, Haixia Zhang, Yuhan Wang, Xin Wang, Xin Zhang   +5 more
doaj   +1 more source

Dimensional design of thrust system with an adjustable layout mechanism in shield machine

Journal of Advanced Mechanical Design, Systems, and Manufacturing, 2020
Due to the heterogeneity of advancing face and the top-heavy structure of main machine, hydraulic cylinders of thrust system in shield machine are subjected to the transverse and longitudinal resistance torque varying in a certain interval which would ...
Kongshu DENG, Yicheng DING, Lu ZENG, Zhurong YIN   +3 more
doaj   +1 more source

From Wafers to Electrodes: Transferring Automatic Optical Inspection (AOI) for Multiscale Characterization of Smart Battery Manufacturing

Advanced Functional Materials, EarlyView.
Automat optical inspection (AOI) techniques in semiconductor fabrication can be leveraged in battery manufacturing, enabling scalable detection and analysis of electrode‐ and cell‐level imperfections through AI‐driven analytics and a digital‐twin framework.
Jianyu Li, Ertao Hu, Wei Wei, Feifei Shi
wiley   +1 more source