Results 101 to 110 of about 496,578 (236)

Identification of tar-rich coal based on the true density and natural gamma ray response of coals

open access: yes
Objective Tar yield, derived from the Gray-King assay, serves as the sole metric for evaluating tar-rich coal. However, insufficient exploration data hinder its effective application in the fine-scale evaluation of extensive tar-rich coal.
Shuangming, WANG   +7 more
core   +1 more source

Tar precipitation characteristics during deep underground coal gasification

open access: yesMeitan kexue jishu
Underground coal gasification represents a promising direction for the clean and efficient utilization of coal in the future and is expected to serve as a significant supplement to deep coal mining and utilization in China. However, the potential risk of
Zhigang ZHANG   +8 more
doaj   +1 more source

‘More Beastliness Than Beauty’: Gendering Pica in Seventeenth‐Century English Medicine and Culture

open access: yesGender &History, EarlyView.
ABSTRACT Today, defined as the ‘persistent eating of non‐nutritive substances’, pica is a lesser‐known eating disorder with a long history. Defined in early modern England as the ‘desire to eat absurd things’, pica was explicitly gendered, associated with pregnant women and pubescent girls.
Helena C. Aeberli
wiley   +1 more source

Coal Tar and Paving Products

open access: yesEnvironmental Health Perspectives, 2006
The National Institute for Occupational Safety and Health (NIOSH) has a partnership relationship with the asphalt paving and roofing industries and their associated unions. Our partners saw in the EHP Focus article “Paving Paradise: The Peril of Impervious Surfaces” (Frazer 2005) the statement on page A459: “Asphalt is one concern, as it contains coal ...
openaire   +2 more sources

PLACE‐FRAMING URBANITY: The Case of Kalasatama, Helsinki

open access: yesInternational Journal of Urban and Regional Research, EarlyView.
Abstract Narratives, visuality and symbolic representations are increasingly important in contemporary urban planning and development. This article seeks to understand how urbanity, one of the key goals of Helsinki's recent planning, has been constructed in the Kalasatama regeneration area. The construction of urban image and identity is viewed as soft
Tuomas Ilmavirta
wiley   +1 more source

Pilot experiment for underground in-situ pyrolysis of tar-rich coal in the northern Shaanxi Province

open access: yes
Objective The breakthrough of the pilot experiment for underground in-situ pyrolysis of tar-rich coal in the northern Shaanxi has added new vitality to the research on in-situ conversion of fossil energy such as tar-rich coal and oil shale, and the ...
Liang, CHEN   +6 more
core   +1 more source

Market Integration and Nonlinear Price Transmission in 19th‐Century British Wheat Markets

open access: yesJournal of Agricultural Economics, EarlyView.
ABSTRACT Important developments in infrastructure and institutions characterized 19th‐Century wheat markets in Great Britain. Among these developments was the construction of the national rail system which enabled cheaper and more efficient transport of grain and other bulky cargoes between inland towns and ports.
Barry K. Goodwin, A. Ford Ramsey
wiley   +1 more source

Quarterly coal report /

open access: yes, 1982
"DOE/EIA-0121."Mode of access: Internet.Includes information previously presented in: Weekly coal production, ISSN 0733-0545 and in: Coal distribution, ISSN 0737 ...
United States. Office of Coal, Nuclear, Electric, and Alternate Fuels.
core  

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