Results 61 to 70 of about 7,257 (220)

A Hybrid LightGBM–WOA Model for Accurate Prediction of Back‐Break in Mine Blasting Operations: A Case Study

Shock and Vibration, Volume 2026, Issue 1, 2026.
Back‐break (BB), a significant environmental concern in mining operations, arises from the improper execution of blasting techniques. The primary cause of BB is the inadequate design of blasting pattern parameters, which leads to structural issues such as fractures, overhangs, and underhangs on the construction face.
Mojtaba Yari, Biao He, Xuzhen He, Payam Abbasi, Hadi Fattahi, Danial Jahed Armaghani, Manoj Khandelwal, Zhipeng Zhao   +7 more
wiley   +1 more source

Direct Exfoliation of Natural SiO2-Containing Molybdenite in Isopropanol: A Cost Efficient Solution for Large-Scale Production of MoS2 Nanosheetes

Nanomaterials, 2018
The cost-effective exfoliation of layered materials such as transition metal dichalcogenides into mono- or few- layers is of significant interest for various applications.
Wenyan Zhao, Tao Jiang, Yujie Shan, Hongrui Ding, Junxian Shi, Haibin Chu, Anhuai Lu   +6 more
doaj   +1 more source

Minerals in Afghanistan : the potential for copper [PDF]

, 2006
There are around 300 documented copper deposits, occurrences and showings in Afghanistan as shown in Figure 1. A variety of styles of copper mineralisation occur in rocks ranging in age from Proterozoic to Neogene.
Benham, Antony John, Coats, Stan
core  

Low‐Cost Maskless Photolithography Using an LCD‐3D Printer for Microelectronic Devices

Small Methods, Volume 9, Issue 11, November 24, 2025.
A cost‐effective and flexible approach is presented to maskless photolithography using a commercial LCD‐MSLA 3D printer, fabricating high‐precision electrodes for 2D material transistors. Abstract A cost‐effective and flexible approach is presented to maskless photolithography using a commercial Liquid Crystal Display (LCD)‐based Masked ...
Qianqian Wu, Ying Zhang, Thomas Pucher, Bob McLarnon, Esteban Zamora Amo, Peng Zhang, Yong Xie, Andres Castellanos‐Gomez   +7 more
wiley   +1 more source

The Reduction of Group 6–8 Transition Metal Oxides with Hydrogen—From Ore Smelting to Reaction Pathways#

European Journal of Inorganic Chemistry, Volume 28, Issue 30, October 22, 2025.
As the reduction of transition metal oxides by coal poses a significant climate risk, the use of alternative reducing agents such as hydrogen is becoming increasingly important. This review summarizes the current knowledge of the reduction pathways of transition metal oxides from groups 6 to 8.
Michael Häger, Simon Keilholz, Holger Kohlmann   +2 more
wiley   +1 more source

Molybdenum mineralization of Serhiivka Au-Mo deposit (Middle Dnipro, Ukrainian Shield)

Мінеральні ресурси України, 2020
The article is devoted to molybdenum mineralization of the Eastern flank of Au-Mo Serhiivka deposit, located in the Middle Dnipro megablock of the Ukrainian Shield (USh).
V. V. Sukach, L. O. Riazantseva, V. O. Somka, S. M. Bondarenko   +3 more
doaj   +1 more source

Room‐Temperature Tuning of Electrical Conductivity in Single MoS2 Flakes via Nanoscale Amorphization by Focused Ion Beam

Advanced Materials Technologies, Volume 10, Issue 20, October 20, 2025.
Focused ion beam (FIB) patterning enables on‐chip amorphization of high‐aspect ratio MoS2 monolayers into complex geometries with tunable electrical properties. By controlling the ion dose, conductive pathways as narrow as 700 nm are formed, allowing precise modulation of local conductivity.
Matheus F. F. das Neves, Heloísa M. Barêa, Tarcísio Perfecto, Jefferson Bettini, Felipe Crasto de Lima, Rafael F. Oliveira, Adalberto Fazzio, Edson R. Leite, Murilo Santhiago   +8 more
wiley   +1 more source

Estudo da dissolução oxidativa microbiológica de uma complexa amostra mineral contendo pirita (FeS2), Pirrotita (Fe1-xS) e Molibdenita (MoS2) Microbiological oxidative dissolution of a complex mineral sample containing pyrite (FeS2), pyrrotite (Fe1-xS) and molybdenite (MoS2)

Química Nova, 2007
This work aims to study the oxidation of a complex molybdenite mineral which contains pyrite and pyrrotite, by Acidithiobacillus ferrooxidans. This study was performed by respirometric essays and bioleaching in shake flasks.
Wilmo E. Francisco Jr, Denise Bevilaqua, Oswaldo Garcia Jr   +2 more
doaj   +1 more source

Study on Floatation Separation of Molybdenite and Talc Based on Crystal Surface Anisotropy

Separations
Talcose molybdenite resources are abundant but resource utilization is low. The floatation separation of molybdenite (MoS2) and talc is challenging due to their similar natural hydrophobicity and layered structures.
Qidong Zhang, Xiaoli Li, Zhifang Hu, Bowen Gao, Chen Liu   +4 more
doaj   +1 more source

Rhombohedral 3R MoS2 Polytype: A Promising Fundamental Material for Next‐Generation Device Applications

Small, Volume 21, Issue 41, October 16, 2025.
Different synthesis methods properties and applications the 3R‐MoS2 are briefly described with necessary figures, plots, and tables as well as the future scopes in the field of research on these materials, are elaborately discussed in this review. Abstract The 3R polymorph of MoS2 demonstrates remarkable versatility across multiple fields, from energy ...
Prabhukrupa Chinmay Kumar, Sang Mun Jeong, Ramakanta Naik, Chandra Sekhar Rout   +3 more
wiley   +1 more source