Results 91 to 100 of about 3,122 (246)

‘CLOSING THE CARBON LOOP’: Climate Policy Discourses and the Material Politics of Municipal Waste‐to‐Biofuel Programs

open access: yesInternational Journal of Urban and Regional Research, EarlyView.
Abstract Waste‐to‐biofuel (WTB) programs have gained popularity as a municipal circular economy and an emissions reduction strategy. The upgrading of biofuels to renewable natural gas (RNG) has drawn particular interest, as RNG can displace conventional fossil fuels in any existing natural gas end use and be delivered through existing pipeline ...
Taylor Davey
wiley   +1 more source

The flotation of pyrite using xanthate collecters

open access: yes, 1986
Bibliography: leaves 117-123.The flotation properties of pyrite were found to be significantly influenced by variations in the pH. In acidic solutions the pyrite floatability is very high, and recoveries of 95% could be achieved using only a frother.
Dimou, Anna
core  

The Non‐Understandable World of Autism Spectrum Disorder: A Therapist's Implicit Understanding and Subsequent Deepened Understanding

open access: yesJournal of Analytical Psychology, EarlyView.
Abstract This paper examines the concept of non‐understandable in psychotherapy, based on the author's own play therapy with a boy with mild ASD (autism spectrum disorder). ASD is considered to belong to an area beyond comprehension, as psychotherapy is often deemed ineffective for it.
Toshio Kawai
wiley   +1 more source

The interactive effect of depressant type and dosage with frother dosage in the flotation of a PGE ore

open access: yes, 2005
The valuable components of the platinum group element (PGE) bearing ores of the Bushveld complex in South Africa constitute between 1 % and as little as 0.1 % of the total mass. In the processing of these ores by flotation, the naturally hydrophobic talc
Dhliwayo, Evelyn Chengetanai
core  

Effect of flotation on coal combustion

open access: yesFuel Processing Technology, 1988
Fuel Processing Technology 18 (1988) 97-100.
Department of Materials Science and Engineering USA ( host institution )   +4 more
openaire   +2 more sources

Pseudonyms, Propaganda, and Prints: The Life and Political Caricatures of William Dent, 1782–931

open access: yesJournal for Eighteenth-Century Studies, EarlyView.
Abstract ‘Dent was probably an amateur and nothing is known of his life’, state Bryant and Heneage. Despite contributing to caricature's ‘golden age’, William Dent remains overlooked compared to contemporaries like James Gillray. Dent's extensive portfolio (1782–93) and rumoured role as a Pittite propagandist have not secured his place in the canon of ...
Callum D. Smith
wiley   +1 more source

New Insight into Temperature Effects on Low-Rank Coal Flotation Using Diesel as a Collector. [PDF]

open access: yesACS Omega, 2023
Bao X   +8 more
europepmc   +1 more source

The Late Agricultural Development of Central Arabian Oases—Archaeobotanical and Archaeozoological Studies of the al‐Kharj Oasis

open access: yesArabian Archaeology and Epigraphy, EarlyView.
ABSTRACT While oasis settlements emerged during the Bronze Age in Eastern and Northern Arabia, the settlement process in Central Arabia was different. Excavations at al‐Yamāma—main ancient settlement of the al‐Kharj oasis (Riyadh Province, KSA)—suggest that the latter did not emerge before the second half of the first millennium BCE.
Elora Chambraud   +4 more
wiley   +1 more source

The effect of ore blends on the mineral processing of platinum ores

open access: yes, 2011
Includes abstract.Includes bibliographical references (leaves 96-101).This thesis investigates the effect of ore blends on milling and flotation performance.
Van Tonder, Erika
core  

Iron Ore Pricing in China: Financialization Through a Marxist Lens

open access: yesAbacus, EarlyView.
We offer a Marxist interpretation of financialization as we examine the Chinese market for iron ore and the shift in the pricing mechanism from an annual fixed price to an indexed price from 2010. Drawing upon Marx's theory of the circuit of capital, we illustrate an empirical case of financialization that results from the conflict between social ...
Xun Gong, Eagle Zhang, Corinne Cortese
wiley   +1 more source

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