Results 101 to 110 of about 3,122 (246)

Effect of NaNO₂ Reductant Pretreatment on Low-Rank Coal Flotation. [PDF]

ACS Omega, 2022
Yang C, Yang H, Fan M, Dong L, Li H, Xue Z, Ren Z, Li S.   +7 more
europepmc   +1 more source

Further Investigations on Simultaneous Ultrasonic Coal Flotation

, 2017
This study investigates the flotation performance of a representative hard coal slime sample (d80 particle size of minus 0.2 mm) obtained from the Prosper-Haniel coal preparation plant located in Bottrop, Germany.
Ozkan, Safak Gokhan, Safak Gokhan Ozkan
core   +1 more source

Response of Remote Tropical West Pacific Islands to Climate Variability: A Multiproxy Record From T‐Lake, Palau, Spanning the Early Holocene to Present

Archaeometry, EarlyView.
ABSTRACT Lake sediments are natural archives of past environmental dynamics and how these systems have responded to past climate variability. Sediment geochemistry, governed by local geology and climate processes, is unique to each lake‐catchment and geochemical proxies must be validated for each study site.
Jalene Nalbant, Larissa Schneider, Jessica L. Blois, Matthew Wolhowe, Julian P. Sachs, Simon G. Haberle, Geoffrey Clark   +6 more
wiley   +1 more source

Associations of Gangue Minerals in Coal Flotation Tailing and Their Transportation Behaviors in the Flotation Process. [PDF]

ACS Omega, 2022
Tian Q, Wang H, Pan Y.
europepmc   +1 more source

Discussion on ultrasonic enhanced lignite flotation and its action mechanism

, 2017
For enhancing the flotation of lignite, a new flotation method for the introduction of ultrasonic wave in flotation pulp was proposed.The results show that the yield of ultrasonic flotation clean coal is 20.31% higher than that of the conventional ...
Bu, Xiangning, Wang, Tianwei, Peng, Yaoli, Mao, Yuqiang, Xia, Wencheng, Chen, Yuran   +5 more
core   +1 more source

Lender‐Affiliated Analysts and Syndicated Loans

Financial Management, EarlyView.
ABSTRACT Loans to borrowers covered by affiliated analysts have lower spreads. This effect is driven mostly by affiliated analysts sharing information with, rather than demanding information from, lending arms. Exploiting plausibly exogenous changes in brokerage affiliations, we find that the results are likely to be causal.
Yongqiang Chu, Tao Ma, Cong (Roman) Wang
wiley   +1 more source

Understanding the Role of Polyvinylpyrrolidone on Ultrafine Low-Rank Coal Flotation. [PDF]

ACS Omega, 2022
Lin Q, Mei Y, Huang W, Zhang B, Liu K.
europepmc   +1 more source

Characterisation of the effect of alteration on the PPM platinum ore and evaluation of selected strategies to improve metallurgical performance

, 2011
The aim of this study is in two parts; the first part focuses on mineralogical quantification of the extent of weathering at PPM by profiling the flotation behaviour and host rock density with spatial ...
Ramonotsi, Mpho
core  

‘This Is Not Europe’: Investigating the Commission's Anti‐Populist Articulation of ‘European Values’

JCMS: Journal of Common Market Studies, EarlyView.
Abstract Whilst ‘populism’ is often considered antithetical to ‘European values’, how this contrast shapes the very meaning of such ‘values’ remains underexplored. This article investigates the European Commission's anti‐populist articulation of ‘European values’, which constructs ‘populism’ as their constitutive outside.
Alex Yates
wiley   +1 more source

Interfacial Adhesion between Fatty Acid Collectors and Hydrophilic Surfaces: Implications for Low-Rank Coal Flotation. [PDF]

Molecules, 2022
Xia Y, Fang D, Qu P, Li Y.
europepmc   +1 more source