Results 61 to 70 of about 1,406,898 (336)

Overview of Research and use of Indicator Gases of Coal Spontaneous Combustion in China / Přehled Výzkumu a Využití Indikačních Plynů Samovznícení Uhlí V Číně

open access: yesGeoScience Engineering, 2014
Počátky výzkum a využití výsledků v oblasti aplikace indikačních plynů pro včasnou detekci samovznícení uhlí pochází v Čině z 60tých let minulého století. Ke značnému rozvoji došlo v devadesátých létech, kdy byl dokončen program „Charakteristika adsorpce
Feng Xiyang, Adamus Alois
doaj   +1 more source

Experimentally Validated Design Principles of D‐Block Transition Metal Single‐Atom Non‐Dissociative Chemisorption Solid‐State Hydrogen Storage Materials

open access: yesAdvanced Functional Materials, EarlyView.
A novel descriptor and a bottom‐up design principle are established to enable the rational design of hydrogen storage materials based on d‐block transition metal single‐atom COFs. By modulating H₂ adsorption through d‐orbital tuning, this approach achieves both high storage capacity and fast kinetics, while revealing a volcano‐type relationship between
Qiuyan Yue   +24 more
wiley   +1 more source

Characterization of coal products from high temperature processing of Usibelli low-rank coals [PDF]

open access: yes, 1991
This research project was conducted in association with Gilbert/Commonwealth Inc. as part of an overall techno-economic assessment of high temperature drying of low-rank coals. This report discusses the characteristics of the dried/pyrolyzed products of
Li, YuFu   +3 more
core  

Relationships among coking coals and related cokes characteristics: a statistical evaluation [PDF]

open access: yes, 2018
From 61 coking coals, 36 coal blends were prepared. Using a pilot coke oven, cokes were prepared from both 61 coking coals (Type I cokes) and 36 coal blends (Type II cokes). Coals were characterized by 14 coal characteristics and cokes by Coke Reactivity
Baran, Pavel   +4 more
core   +1 more source

Recycling of Thermoplastics with Machine Learning: A Review

open access: yesAdvanced Functional Materials, EarlyView.
This review shows how machine learning is revolutionizing mechanical, chemical, and biological pathways, overcoming traditional challenges and optimizing sorting, efficiency, and quality. It provides a detailed analysis of effective feature engineering strategies and establishes a forward‐looking research agenda for a truly circular thermoplastic ...
Rodrigo Q. Albuquerque   +5 more
wiley   +1 more source

The geology and petrography composition of coal from Handlová deposit [PDF]

open access: yesActa Montanistica Slovaca, 2000
In some countries, including the Slovak Republic caustobioliths have been and for the foreseeable future will continue to be the most important source of energy.During the geological development of the territory of Slovak Republic, suitable conditions ...
Sýkorová Ivana   +2 more
doaj  

Characterization and washability studies of raw coal from the Little Tonzona Field, Alaska [PDF]

open access: yes, 1991
Coal occurs in an isolated exposure of Tertiary, non-marine sedimentary rocks along the southwest bank of the Little Tonzona River, near Farewell, Alaska. The Little Tonzona River coal field is located approximately 150 air miles northwest of Anchorage,
Charlie, K.G.   +3 more
core  

Engineering Oxygen Vacancy in Support to Promote Activity of In2O3 Catalyst for CO2 Electroreduction to Formate

open access: yesAdvanced Functional Materials, EarlyView.
A novel approach by depositing In2O3 onto an oxygen vacancy (OV)‐enriched support, ceria‐zirconia solid solutions (CZ), to activate synergistic effects is proposed. The OV contributes greatly to the dissociation of H2O and further promotes the hydrogenation of adsorbed CO2 species.
Ruirui Qi   +10 more
wiley   +1 more source

Reflotation of Coal Flotation Tailings using Foam Separation / Reflotace Černouhelných Flotačních Hlušin Pomocí Pěnové Separace

open access: yesGeoScience Engineering, 2011
Pěnová separace je jedním z nových způsobů flotační úpravy nerostných surovin. Tato metoda umožňuje podstatné zvýšení horní hranice velikosti rozdružovaných zrn. Příspěvek se zabývá ověřením možnosti využití pěnové separace pro reúpravu flotačních hlušin.
Juřicová Hana, Tichánek František
doaj   +1 more source

Financial Risks of Investments in Coal [PDF]

open access: yes, 2011
Analyzes the regulatory, commodity, and construction risks of investing in coal mining and coal-fired power plants. Examines industry analysts' consensus on viable alternatives to coal, including natural gas, solar, wind, and energy ...
Amy Galland, Leslie Lowe, Tom Sanzillo
core  

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