Results 51 to 60 of about 66,438 (265)

Long memory in German energy price indices [PDF]

open access: yes, 2012
This study examines the long-memory properties of German energy price indices (specifically, import and export prices, as well as producer and consumer prices) for hard coal, lignite, mineral oil and natural gas adopting a fractional integration ...
Barros, CP, Caporale, GM, Gil-Alana, LA
core   +2 more sources

Carbonization of Canadian Lignite. [PDF]

open access: yesJournal of Industrial & Engineering Chemistry, 1921
n ...
openaire   +3 more sources

One‐Pot Microwave‐Assisted Olefin Hydroaminomethylation Over Bifunctional Heterogeneous Rh Catalysts

open access: yesChemCatChem, EarlyView.
Heterogeneous lab‐made Rh/CNFs gave yield >99% in the one‐pot MW‐assisted hydroaminomethylation of olefins to amines, using EtOAc as the solvent, due to the synergy between metal and acid surface sites. Acetic acid addition promoted both conversion and selectivity during the rate‐determining hydroformylation step.
Fabio Bucciol   +7 more
wiley   +1 more source

IMPROVING THE METHOD OF OPEN-PIT LIGNITE DEPOSITS DEVELOPMENT IN UKRAINE [PDF]

open access: yes, 2018
Subject of the research is open-pit mining concerning a full- field industrial development of a number of lignite deposits; feasibility study has been performed for them as for the efficient environmental friendly processing of coal and associated ...
Adamchuk, A.A.   +11 more
core  

Economic Resilience of German Lignite Regions in Transition [PDF]

open access: yes, 2019
This paper recalls the development of the German lignite regions Rhineland and Lusatia since 1945 to allow for a better understanding of their situation in 2019. We analyze their economic resilience, defined as adaptive capacity, using Holling’s adaptive
Oei, Pao-Yu   +3 more
core   +1 more source

Corn cob pyrolysis: A systematic literature review of methods and applications

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
Mapping the research landscape of corn cob pyrolysis. Abstractas The agricultural sector is experiencing a surge in waste generation due to population growth, creating an urgent need to convert byproducts into value‐added products. Maize (Zea mays L.), a leading global crop, produces significant byproducts, such as corn cob, which are often undervalued.
Vilmar Steffen   +5 more
wiley   +1 more source

An overview of lithotype associations of Miocene lignite seams exploited in Poland

open access: yesGeologos, 2016
Currently, three stratigraphically distinct lignite seams of Early to Middle Miocene age are exploited in Poland, namely the third Ścinawa lignite seam (ŚLS-3), the second Lusatian lignite seam (LLS-2) and the first Mid-Polish lignite seam (MPLS-1).
Widera Marek
doaj   +1 more source

Geotechnical Engineering Perspectives: Challenges and Solutions in the Transition to a Post-Lignite Era

open access: yesMaterials Proceedings, 2021
Coal and lignite regions are on the way to reinvent themselves. In this work, three aspects related to the reclamation and exploitation of these mining areas are analyzed, focusing on the role of geotechnical engineering.
Ioannis E. Zevgolis   +2 more
doaj   +1 more source

Exploring the Influence of Carbonaceous Material on the Photocatalytic Performance of the Composites Containing Bi–BiOBr and P25 TiO2 for NOx Remediation

open access: yesChemPhysChem, EarlyView.
Bi/BiOBr/P25 TiO2 composites are synthesized via a solvothermal method incorporating 1 wt% of a carbon‐based material (graphene oxide [GO], graphene, carbon nanotubes, or buckminsterfullerene). The GO–based composite exhibits the highest photocatalytic NOx removal efficiency (≈22% NO and ≈15% NO2) with these synergetic improvements attributed to ...
Paransa Alimard   +7 more
wiley   +1 more source

Palynostratigraphy and palynofacies of the early Eocene Gurha lignite mine, Rajasthan, India [PDF]

open access: yes, 2016
A 105 m early Eocene section exposed in the Gurha mine in the Nagaur-Ganganagar Basin, Rajasthan, India, archiving remains of equatorial vegetation at a time of extreme global warmth and close to the onset of the India-Eurasia collision, is investigated ...
Aggarwal   +50 more
core   +1 more source

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