Results 141 to 150 of about 765,751 (280)

Bridging the Late Antique Gap in Northwest Arabia: New Archaeological Evidence on the Occupation of Wādī al‐Qurā (al‐ʿUlā [AlUla], Saudi Arabia) Between the Third and Seventh Centuries CE

Arabian Archaeology and Epigraphy, EarlyView.
ABSTRACT In 2019, the Dadan Archaeological Project (CNRS/RCU/AFALULA) identified a Late Antique village 1 km south of ancient Dadan in the al‐ʿUlā valley (northwest Saudi Arabia). Three excavation seasons at this site (2021–2023) have uncovered a massive building constructed in the late third or early fourth cent.
Jérôme Rohmer, Abdulrahman Alsuhaibani, Charlène Bouchaud, Elora Chambraud, Vladimir Dabrowski, Hatem Djerbi, Fabien Lesguer, Hervé Monchot, Paul Picavet, Louise Purdue, Bertrand Riba, Shadi Shabo   +11 more
wiley   +1 more source

ROCK BUMP – THE REASON OF METHANE OUT BURST IN THE COAL MINE?

Bulletin of the Kamchatka Regional Association «Educational-Scientific Center». Physical & Mathematical Sciences, 2015
The proposed model presents a rock bump (a technogeneous earthquake) as a shock wave emergence on the inside wall of a mine. In such a case, an unloading, tensile wave is generated which moves in the opposite (into the wall) direction. A shock wave is accompanied by medium motion in the direction of shock wave propagation with the velocity ...
openaire   +2 more sources

Who Makes the Far Right? Exploring Membership Application Data of the National Front of Australia

Australian Journal of Politics &History, EarlyView.
This paper addresses a problem for scholars examining the question of who supports far right political parties or movements. Due to the semi‐clandestine or oppositional nature of far right groups, historians, as well as those in adjacent disciplines, have often been unable to gain access to sufficient records or data to conduct analysis of who supports
Evan Smith, Lauren Pikó
wiley   +1 more source

Access to Credit and Employment Liquidation. Firm‐Level Evidence From Eastern and Central Europe (2001–2007)

Economics of Transition and Institutional Change, EarlyView.
ABSTRACT This article investigates the changes in the structure of employment in Central and Eastern European firms between 2001 and 2007, before the Global Financial Crisis and following the reforms in the labour and credit markets in these economies.
Elisabetta Magnani
wiley   +1 more source

Classification and instability mechanism of anchored “beam-arch” composite structure in rock burst roadways with top-coal [PDF]

The rock burst frequently occurs in the roadways with top coal, and the roof disasters are particularly severe under dynamic stress in China. In order to explore the classification and instability mechanisms of anchoring structures in the roadways with ...
Yingyuan WEN, Qi HAO, Wenhao GUO, Geng LI, Anye CAO, Yaoqi LIU, Guowei LÜ, Songwei WANG   +7 more
core   +1 more source

Extreme weather and economic crisis in the 1430s in England, and the implications for tenurial change

The Economic History Review, EarlyView.
Abstract The 1430s were characterized by extreme weather conditions, food and fodder shortages, and high mortalities among animals and humans, although the severity of events and their consequences in England have received limited attention. The economic downturn and the depressed customary land market in this decade marked the beginning of the Great ...
Mark Bailey
wiley   +1 more source

Risk assessment of coal seam floor water burst based on improved vulnerability index method

Meikuang Anquan
The coal seam floor water burst has an inevitable impact on the safety production of coal mines. To prevent the occurrence of coal seam floor water burst in advance, effective risk assessment of coal seam floor water burst before mining can provide ...
Xuefei WU
doaj   +1 more source

Mechanical properties and energy evolutions of burst-prone coal samples with holes and fillings

International Journal of Coal Science & Technology
During the mining process of impact-prone coal seams, drilling pressure relief can reduce the impact propensity of the coal seam, but it also reduces the integrity and strength of the coal mass at the side of the roadway.
Yukai Fu, Yongzheng Wu, Junchen Li, Penghe Zhou, Zhuoyue Sun, Jie He   +5 more
semanticscholar   +1 more source

‘Elbow grease and yellow soap’: Housework time in working‐class households in late‐nineteenth and early twentieth‐century Britain

The Economic History Review, EarlyView.
Abstract Housework is central to feminist calls for recognition of women's work, economic histories explaining the sexual division of labour, and claims regarding the progressive role of scientific knowledge. Yet little is known about the time it actually took. We address this lacuna.
Sara Horrell, Jane Humphries
wiley   +1 more source

Numerically and Analytically Forecasting the Coal Burst Using Energy Based Approach Methods

, 2018
Coal burst is referred to as the violent failure of overstressed coal, which has been recognised as one of the most critical dynamic failures in coal mines.
Onur Vardar, Saydam, SERKAN ; https://orcid.org/, Zhang, C ; https://orcid.org/, Ismet Canbulat, Chengguo Zhang, Tahmasebinia, F ; https://orcid.org/, Faham Tahmasebinia, Canbulat, ISMET ; https://orcid.org/, Serkan Saydam, Vardar, ONUR ; https://orcid.org/   +9 more
core   +1 more source