Results 71 to 80 of about 6,136 (197)

Influence of Bitumen Chemical Composition and Ageing on Pavement Performance

open access: yesThe Baltic Journal of Road and Bridge Engineering, 2015
The quality of road bitumen in asphalt mixtures is one of the most important factors affecting performance of the entire pavement structure during its service.
Miglė Paliukaitė   +2 more
doaj   +1 more source

Genesis of solid bitumen [PDF]

open access: yesScientific Reports, 2020
AbstractThis paper presents a new schematic model for generation and timing of multiple phases of solid bitumen throughout the continuum of organic matter maturation in source and tight reservoir rocks. Five distinct stages in the evolution of solid bitumen are proposed: (1) diagenetic solid bitumen (or degraded bituminite), which is not a secondary ...
openaire   +2 more sources

The emergence and complexification of symbolic practices in the Homo lineage: an archaeological and cognitive perspective Émergence et complexification des pratiques symboliques dans la lignée Homo : une approche archéologique et cognitive

open access: yesJournal of the Royal Anthropological Institute, EarlyView.
Recent archaeological discoveries, reviewed in this essay, challenge traditional views on the emergence of human symbolic cognition. Once believed to have originated in Europe around 40,000 years ago, new evidence shows it emerged much earlier across diverse regions.
Francesco d'Errico   +3 more
wiley   +1 more source

Analysis of possible use of pyrolytic products as binders in asphalt mixes

open access: yesGrađevinar, 2016
New binders are produced in order to reduce dependence on crude oil. This study aims to evaluate pyrolytic products and their blends with bitumen, as a possible substitution for bitumen.
Lidija Avsenik, Marjan Tušar
doaj   +1 more source

A Newly Discovered Tablet‐Making Facility in Nineveh: Insights From Scientific Analysis

open access: yesArchaeometry, EarlyView.
ABSTRACT This paper addresses the question of tablet technology in the Neo‐Assyrian capital city of Nineveh. Recent excavations in the lower town of Nineveh by the Iraqi–Italian Archaeological Expedition uncovered an exceptional assemblage of more than 200 tablets from an elite residence that appears to have included a scriptorium.
Mathilde Jean   +7 more
wiley   +1 more source

A Territorial Approach to Transitioning Oil and Gas Producing Regions: Comparative Practices and Prospects for Canada

open access: yesCanadian Public Administration, EarlyView.
Abstract Oil and gas transitions are relatively new and especially difficult because the sector is large, economically central, and deeply embedded in national energy systems. Territorial approaches—grounded in regional political economies, institutions, and community impacts—offer a politically feasible way to begin meaningful oil and gas transitions ...
Tamara Krawchenko, Sophie Kiernan
wiley   +1 more source

Impacts of coal smoke on infant mortality: Evidence from industrializing Japan

open access: yesThe Economic History Review, EarlyView.
Abstract This study investigates the health consequences of coal smoke during Japan's early industrialization. Using fixed‐effects models and a prefecture‐level panel dataset on actual coal consumption and infant mortality from 1899 to 1910, this study finds that higher coal consumption was positively associated with infant mortality.
Tatsuki Inoue
wiley   +1 more source

ENABLING PARTIAL UPGRADING IN ALBERTA: A REVIEW OF THE REGULATORY FRAMEWORK AND OPPORTUNITIES FOR IMPROVEMENT

open access: yesThe School of Public Policy Publications, 2019
One of the ways that Alberta can help alleviate its worsening bottleneck in oilexport pipelines is by partially upgrading oil sands bitumen before shipping it to market.
Jennifer Winter   +2 more
doaj   +1 more source

Bitumen composition

open access: yes, 2015
The invention is directed to a bitumen composition, to a paving, to a roofing, to a method for preparing a bitumen composition, to a method for increasing the stiffness of a bitumen composition, to a method of adjusting the physical properties of a bitumen composition, and to the use of a bitumen composition.
Slaghek, Theodoor Maximiliaan   +3 more
openaire   +4 more sources

Viscosity characterization of confined bitumen considering microaggregate-bitumen interactions

open access: yesComputer-Aided Civil and Infrastructure Engineering, 2020
Abstract Microaggregate‐bitumen interactions in asphalt mixtures cause nonuniform rheological properties of bitumen adhering to aggregates.
Zejiao Dong   +3 more
openaire   +2 more sources

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