Results 141 to 150 of about 4,616 (263)
Archaeometry, EarlyView.ABSTRACT This study focuses on two terracotta incense burners discovered in the Daba Al‐Bayah necropolis in the Musandam Peninsula (Oman), associated with an Iron Age collective tomb (LCG‐2). Through gas chromatography–mass spectrometry (GC‐MS), the organic residues preserved within these artifacts were analyzed to investigate their use and ...
Francesco Genchi +3 more
wiley +1 more source
Mechanism of reverse fault activation when mining under the condition of thick and hard roof
Meitan kexue jishuIn order to study the mechanical mechanism of the instability of the reverse fault in the working face under the condition of thick and hard roof, the spatial relationship model between the overburden movement area and the fault plane was established through the relationship among the size of the coal pillar at the fault boundary, the fault dip angle ...
Weijian YU +5 more
openaire +1 more source
The Material Basis of 18th‐Century Meissen Porcelain
Archaeometry, EarlyView.ABSTRACT In the summer of 1708, the quest for making hard‐paste porcelain from Saxonian clay and other mineral resources succeeded. This was achieved by applying as its essential ingredient newly discovered pure kaolin from Heidelsberg near Aue, western Saxon Ore Mountains.
Robert B. Heimann
wiley +1 more source
Boreas, EarlyView.Map of Lower sediment (LS) thickness is a surrogate for the distribution of Thorncliffe Formation (TF) and ~75% of TF thickness from the slope of Niagara Escarpment east to Brighton. Inset images show the LS sequence at the Don Valleys brickyards (DVBY) and undeformed TF sand and gravel (~15 m) below Newmarket Till (NT) at sites L and Co.
David R. Sharpe +3 more
wiley +1 more source
Practice of deep hole blasting and rapid charging technology for composite thick and hard roof
Meikuang AnquanIn order to control the dynamic pressure behavior of the working face under the condition of composite thick and hard roof, taking a mine in Ordos as an example, through theoretical analysis, it is clarified that the instability of small coal pillar roadway with thick and hard roof is mainly divided into deformation instability and impact instability ...
Huijie BI, Yunlong MO, Shaogang LI
openaire +1 more source
Boreas, EarlyView.Effective and sustainable land use, conservation, and the use of geological resources (incl. raw materials, aggregates and groundwater) require a clear classification system of sedimentary units, with well‐defined vocabulary and unified mapping practices.
Jussi Hovikoski +6 more
wiley +1 more source
Stress and microseismic activity in hard roof thick coal seams under varying mining rates. [PDF]
Sci RepGu ST +5 more
europepmc +1 more source
Community Dentistry and Oral Epidemiology, EarlyView.ABSTRACT Objectives To explore how Dutch adults with rheumatoid arthritis (RA) perceive their oral health around the diagnostic process and the early disease course. The primary objective was to describe these perceptions in depth, and a secondary objective was to identify areas for future patient‐centred research.
Nadine Isabel Bhagwandas +2 more
wiley +1 more source
Development and Change, EarlyView.ABSTRACT The United Nations has declared 2026 the International Year of Volunteers for Sustainable Development. Against that backdrop, this article examines the experience of volunteerism, and specifically self‐help voluntary labour in Tanzania in the early colonial period, to explore the place of volunteerism in the construction of the post‐colonial ...
Michael Jennings
wiley +1 more source
Synergistic mechanism and stability control of gob-side entry retaining by pressure relief and roadside filling in thick coal seams. [PDF]
Sci RepShen F, Rui X, Liu C, Yang J.
europepmc +1 more source