Results 51 to 60 of about 1,123,828 (350)
Adaptive control method for drilling robot based on coal and rock drillability
Gong-kuang zidonghua, 2023 Due to the complex geological and mechanical environment of coal-bearing strata, the feed resistance of the drilling rig feed system and the load torque of the rotary system are complex and diverse.
LI Wangnian +4 more
doaj +1 more source
Experimental studies of the resultant contact forces in drillbit-rock interaction [PDF]
, 2014 Peer ...
Ajibose, Olusegun Kolawole +2 more
core +1 more source
Advanced Healthcare Materials, EarlyView.ABSTRACT The ascent of novel alternative methods in drug development spotlights the dual needs for improved biological fidelity to in vivo, along with reproducibility, especially in regulatory applications. The need for pre‐clinical models of patient‐derived endometriosis lesions motivates the development of a vascularizable, completely synthetic ...
Lauren Pruett +7 more
wiley +1 more source
Opportunities of Semiconducting Oxide Nanostructures as Advanced Luminescent Materials in Photonics
Advanced Materials, EarlyView.The review discusses the challenges of wide and ultrawide bandgap semiconducting oxides as a suitable material platform for photonics. They offer great versatility in terms of tuning microstructure, native defects, doping, anisotropy, and micro‐ and nano‐structuring. The review focuses on their light emission, light‐confinement in optical cavities, and
Ana Cremades +7 more
wiley +1 more source
Quasi-static stationary-periodic model of percussive deep drilling [PDF]
, 2005 Copyright @ 2005 Patron EditoreIn the percussively deep drilling, the rock is modeled by an infinite elastic medium with a semi-infinite cylindrical bore-hole having a curvilinear bottom.
Mikhailov, SE, Namestnikova, IV
core
Advanced Materials, EarlyView.This review highlights the role of self‐assembled monolayers (SAMs) in perovskite solar cells, covering molecular engineering, multifunctional interface regulation, machine learning (ML) accelerated discovery, advanced device architectures, and pathways toward scalable fabrication and commercialization for high‐efficiency and stable single‐junction and
Asmat Ullah, Ying Luo, Stefaan De Wolf
wiley +1 more source
An experimental investigation into the borehole drilling and strata characteristics.
PLoS ONE, 2021 Measurement while drilling is an important part of the intelligent development of coal mines. The main purpose of this paper is to comprehensively analyze the response characteristics of borehole drilling parameters and find a better method to predict ...
Cancan Liu +5 more
doaj +1 more source
IEEE Access, 2021 In the present research, two real-time rock strength determination models based on the drilling parameters were studied. Firstly, a discrete element software named Particle Flow Code in 2 Dimensions (PFC2D) was used to analyze the applicability of rock ...
Bosong Yu, Kai Zhang, Ganggang Niu
doaj +1 more source
Application of damage mechanics in percussive drilling modelling [PDF]
, 2005 A stationary-periodic quasi-static model of rock percussive deep drilling is introduced. First, an auxiliary problem of stationary indentation of a rigid indentor is considered.
Mikhailov, SE, Namestnikova, IV
core
Substantiating rational parameters of a method for shrinkage ore stoping while developing thin- vein steeply inclined deposits [PDF]
, 2018 Objective of the paper is to substantiate rational ore-stoping technique while using small wells in the context of thin-vein steeply inclined deposit mining.
Denyshchenko, Oleksandr +3 more
core +1 more source