Results 81 to 90 of about 7,913 (294)
Vapor pressures and heats of vaporization of primary coal tars. Quarterly technical progress report, January 1, 1994--March 31, 1994 [PDF]
, 1994 The vapor pressure correlations that exist at present for coal tars are very crude and they are not considered reliable to even an order of magnitude when applied to tars.
Suuberg, E. M.
core +1 more source
American Journal of Botany, EarlyView.Abstract Premise The Chicxulub asteroid impact at the Cretaceous–Paleogene (K–Pg) boundary triggered a mass extinction 66 million years ago. Ferns thrived in the aftermath of the extinction, evidenced by the well‐documented “fern spore spike.” However, fern macrofossil records across the K–Pg boundary are less understood.
Fern B. Holian +9 more
wiley +1 more source
Catalytic Steam Reforming of Gasifier Tars: On-Line Monitoring of Tars with a Transportable Molecular-Beam Mass Spectrometer; Milestone Completion Report [PDF]
, 2002 A method for evaluating catalytic tar decomposition in real time is presented. The effectiveness of two catalysts are compared. A key technical and economic barrier to commercialization of biomass gasification technologies is the removal of tars that are
Carpenter, D., Dayton, D., Ratcliff, M.
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Тонкие химические технологии, 2010 In this paper the influence of the conditions of the heavy oil raw materials oxidation process on the quality characteristics and paramagnetism of oxidized bitumen has been investigated.
A. V. Murashkina +2 more
doaj
Construction of Lean Coal Molecular Structure Model Based on Spectroscopic Characterization
Asia-Pacific Journal of Chemical Engineering, EarlyView.ABSTRACT The chemical structure of coal exerts a profound influence on its properties and utilization pathways. A comprehensive analysis of coal's molecular structure is crucial for mitigating environmental pollution arising from coal combustion and improving the efficiency of coal utilization.
Song Liu +5 more
wiley +1 more source
Structural Properties and Molecular Mass Distributions of Biomass-Coal Cogasification Tars as a Function of Aging [PDF]
, 2015 This work describes an analytical approach to determine changes in mass distributions and structural properties of biomass/coal cogasification tars, after storage of these samples as a function of temperature, time, and presence of ambient light.
Anthe George (108779) +7 more
core +1 more source
TARS: An Array Model with Rich Semantics for Multidimensional Data [PDF]
, 2017 Proceedings of the ER Forum 2017 and the ER 2017 Demo Trackco-located with the 36th International Conference on Conceptual ModellingInternational audienceRelational DBMSs have been shown to be inefficient for scientific data management.
Porto, Fabio +3 more
core +4 more sources
Asia-Pacific Journal of Chemical Engineering, EarlyView.ABSTRACT Healthcare derived polystyrene waste represents a growing and under addressed fraction of plastic waste streams due to contamination risks and limited recyclability. This study aims to investigate the valorization of waste polystyrene foam through catalytic and noncatalytic pyrolysis pathways to evaluate product yield distribution and identify
Salman Khan +4 more
wiley +1 more source
Diversity of pili-specific bacteriophages: genome sequence of IncM plasmid-dependent RNA phage M
BMC Microbiology, 2012 Background Bacteriophages of the Leviviridae family are small RNA viruses with linear, positive-sense, single-stranded RNA genomes that encode only four proteins. All phages of this family require bacterial pili to attach to and infect cells. Leviviridae
Rumnieks Janis, Tars Kaspars
doaj +1 more source
Global Energy InterconnectionAntarctica’s extreme environment, marked by frigid temperatures, fierce winds, and prolonged periods of darkness, presents significant challenges for sustaining energy needs at research stations.
Muhammad Fahad Shinwari +4 more
doaj +1 more source