Results 101 to 110 of about 162,101 (311)
Leakage risk assessment system for salt cavern hydrogen storage
Deep Underground Science and Engineering, EarlyView.Establishment of a leakage risk evaluation system for salt cavern hydrogen storage reservoirs using the entropy weight method plus two‐dimensional cloud modeling approach. Abstract Salt cavern hydrogen storage (SCHS) is an important component of large‐scale underground hydrogen storage, with advantages such as large hydrogen storage capacity and ...
Weizheng Bai +4 more
wiley +1 more source
Improving low-rank coal flotation using a mixture of oleic acid and dodecane as collector [PDF]
MATEC Web of ConferencesLow-rank coals (LRC) are abundant but underutilized due to their hydrophilic nature and high oxygen content, which hinder flotation efficiency. Traditional single-collector systems often result in low recovery rates and high reagent consumption.
Baloyi Nomsa Prescilla +2 more
doaj +1 more source
Opportunities for plasma separation techniques in rare earth elements recycling
, 2017 Rare earth elements recycling has been proposed to alleviate supply risks and market volatility. In this context, the potential of a new recycling pathway, namely plasma mass separation, is uncovered through the example of nedodymium - iron - boron ...
Fisch, Nathaniel J. +2 more
core +2 more sources
Preliminary assessment of roadheaders efficiency based on empirical methods and index of equivalent rock strength [PDF]
, 2019 Purpose. The choice of a proper roadheader is a critically important step in planning of a project or some of its stages. Nowadays various manufacturers produce numerous models of these vehicles, hence it is unreasonable to conduct a thorough analysis of
Averin, E +4 more
core +1 more source
Natural Hydrogen: A Mini‐Review Unveiling Its Potential as a Key to Sustainable Future for Energy
EcoEnergy, EarlyView.This mini‐review summarizes natural hydrogen's formation mechanisms, exploration progress, and potential to drive global energy transition toward sustainability. ABSTRACT As the global energy shortage challenge and transition continues, greater attention is being drawn to natural hydrogen, a clean and high‐potential energy source.
Yuanming Gao +14 more
wiley +1 more source
Journal of Advanced Materials in Engineering, 2020 In this research, barium calcium hexaferrite (Ba1-xCaxFe12O19 , 0≤x£1) nanoparticles were synthesized through a sol-gel combustion method. The dried gel samples were then calcined at 950ºC for 4:30h.
A. Karimian, Kalantar
doaj
Research methodology in montanistic tourism [PDF]
, 2017 Research methodology in montanistic tourism involves the archival research and study of special literature, surface and underground field survey, the analysis of findings of rock fragments, mineral composition, traces of metallurgical processes ...
Schejbal, Ctirad
core
Natural Sciences, EarlyView.Lead‐based perovskite solar cells deliver outstanding power conversion efficiencies, yet their commercialization is constrained by concerns over lead toxicity and stability challenges. Advanced encapsulation and chemical passivation techniques can significantly suppress lead leakage while improving long‐term device stability.
George G. Njema +3 more
wiley +1 more source
Estimation of capital and operation costs of backhoe loaders
, 2011 Accurate estimation of equipment costs is a key factor in feasibility study and evaluation of design alternatives of mining projects. In this paper, capital and operation costs of backhoe loaders are estimated using multiple linear regression (MLR ...
Lashgari, A, Oraee, B, Sayadi, AR
core
Special Libraries, December 1961 [PDF]
, 1960 Volume 52, Issue 10https://scholarworks.sjsu.edu/sla_sl_1961/1009/thumbnail ...
Special Libraries Association
core +3 more sources