Results 21 to 30 of about 355,757 (390)

Urinary naphthalene and phenanthrene as biomarkers of occupational exposure to polycyclic aromatic hydrocarbons. [PDF]

open access: yes, 2008
OBJECTIVES: The study investigated the utility of unmetabolised naphthalene (Nap) and phenanthrene (Phe) in urine as surrogates for exposures to mixtures of polycyclic aromatic hydrocarbons (PAHs).
Garshick, E   +9 more
core   +3 more sources

Experimental study on decrease of gas gush strength led by active water

open access: yesGong-kuang zidonghua, 2016
To solve gas overload problem in mining face, the relationship between gas pressure and exposure time in falling coal of mining face was analyzed. A series of methane absorption-degradation comparison experiments on immersed coal particles praevia and ...
XU Xinghua, YANG Jiayi, YANG Shaokun
doaj   +1 more source

Influence of the catalyst support on the steam reforming performance of toluene as tar model compound [PDF]

open access: yes, 2018
The large amount of tar produced along with the syngas during biomass gasification is one of the major obstacle for the diffusion of gasifiers at industrial scale. Catalytic cracking and reforming are the most suitable processes for the transformation of
Asbel, Hernandez   +6 more
core   +1 more source

Placeholder: Carolina Poems of Love and Labor

open access: yesSouthern Spaces, 2010
In these poems and interview excerpts, Allison Hedge Coke returns to several locations in North Carolina where she lived and worked in the early 1970s. She describes the transformation of tobacco agriculture, off-season work in Raleigh, and a variety of ...
Allison Hedge Coke
doaj   +1 more source

A study on the characteristics of coke in the hearth of a superlarge blast furnace.

open access: yesPLoS ONE, 2021
An in-depth study on the characteristics of coke in the hearths of blast furnaces is of great significance for explaining the mechanism of coke deterioration in blast furnaces. In the present work, the changes in macromorphology, degree of graphitization,
Qing Q Lv   +4 more
doaj   +1 more source

Influence of silicon and silicon/sulfur-containing additives on coke formation during steam cracking of hydrocarbons [PDF]

open access: yes, 2008
The influence of the combination of two Si-containing additives, BTMS and TEOS, with DMDS on coke formation during steam cracking has been evaluated both on a laboratory scale and in a pilot plant unit.
Marin, Guy   +3 more
core   +2 more sources

The influence of additional hemicellulose on Japanese cedar based pre-carbonized solid biofuel properties

open access: yesMechanical Engineering Journal, 2019
The global carbon dioxide emissions issue is the main hindrance of the Paris agreement goals. Biomass has been effectively utilized as a renewable energy in the household heating and the electricity generating sector.
Supitchaya CHERDKEATTIKUL, Tamio IDA
doaj   +1 more source

Large-scale simulation of CO2 gasification reaction with mass transfer for metallurgical coke: Comparison with lab-scale experiment at 1373 K in early stage

open access: yesResults in Engineering, 2023
The large-scale simulation of gasification using a highly resolved coke model is a powerful tool for predicting structural changes in metallurgical coke in a blast furnace.
Yui Numazawa   +4 more
doaj   +1 more source

Relevance of the composition of municipal plastic wastes for metallurgical coke production [PDF]

open access: yes, 2011
This study is concerned with the effects of the composition of mixed plastic wastes on the thermoplastic properties of coal, the generation of coking pressure and the quality of the resulting cokes in a movable wall oven at semipilot scale.
Alvarez, R.   +3 more
core   +1 more source

Coke of Norfolk 1754-1842: a biography by Susanna Wade Martins [2009] [PDF]

open access: yes, 2010
Susanna Wade Martins, Coke of Norfolk, 1754–1842. A Biography, Woodbridge, Suffolk, The Boydell Press, 2009. xii + 218 pp. £50.00. 9781843834267. This biography does Thomas Coke full justice, in style as well as in content. It is excellently illustrated
Hall, Stephen J. G.
core   +1 more source

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