Results 1 to 10 of about 347,458 (339)

Optimization of powder factor, fragmentation and oversized boulders through subsystem studies in an opencast coal mine [PDF]

open access: yesInternational Journal of Mining and Geo-Engineering, 2023
The massive deposit of medium-grained, white-colored sandstone of about 20 m thick, is located immediately above the coal seam in Quarry No. 2, resulted lesser yield due to lower powder factor (m3/kg) and over-sized boulder formations, specifically from ...
Pijush Roy   +2 more
doaj   +1 more source

Effect of sintering pressure on the performance of Fe-based pre-alloyed bit matrix with low liquid phase

open access: yesJin'gangshi yu moliao moju gongcheng, 2023
The hot-pressing sintering experiments were carried out under the conditions of sintering temperature of 950 ℃, holding time of 5 mins and different sintering pressures.
Zhiming WANG   +5 more
doaj   +1 more source

THE WORSHIPPING FORMULAE OF ROYAL ADORATION SCENES IN ANCIENT EGYPTIAN TEMPLES FROM THE OLD KINGDOM TILL THE END OF THE LATE PERIOD [PDF]

open access: yesJournal of the General Union of Arab Archaeologists, 2023
الصيغ المعنونة لمناظر التعبد الملكية في المعابد المصرية القديمة منذ عصر الدولة القديمة حتى نهاية العصر المتأخر [Ar] يتناول هذا البحث عرض ودراسة ست صيغ لغوية قام الباحث بتصنيفها خلال حصره مناظر تعبد الملوك في ...
Rabee Eissa Mohamed
doaj   +1 more source

Research on non-repeated advance support technology in mining roadway

open access: yesMeikuang Anquan, 2023
Taking No.12302 roadway of Wangjialing Mine as the research background, the advance support technology was researched by means of field investigation, theoretical analysis and engineering practice.
Qi WANG, Dejun SONG, Dianhua YAN
doaj   +1 more source

A Simplified Method for Analysis of Laterally Loaded Piles considering Cyclic Soil Degradation

open access: yesAdvances in Civil Engineering, 2021
This paper proposes a simplified method to analyze the bearing behavior of pile undergoing cyclic lateral load. Firstly, a modified strain model is proposed by utilizing the Duncan–Chang model to describe the stress-strain behavior of soils in the strain
Yuzhe Yang   +3 more
doaj   +1 more source

Lateral Dynamic Response of Helical Pile in Viscoelastic Foundation Considering Shear Deformation

open access: yesApplied Sciences, 2023
Helical piles are a new type of pile that has good application prospects, and researchers have carried out an in-depth investigation into their vertical uplift and compressive bearing capacity.
Xiaoyan Yang   +4 more
doaj   +1 more source

Surface metallization of solid lubricants and its effect on the mechanical properties of Fe-based bit matrix

open access: yesJin'gangshi yu moliao moju gongcheng, 2023
Self-lubricating impregnated diamond bit can provide a new technical solution to the lunar drilling problem, but the poor wettability between the solid lubricants and the bit matrix can lead to degradation of physical and mechanical properties of the bit
Chengkai GUAN   +4 more
doaj   +1 more source

Numerical investigation into the effect of various surcharge loadings on propped wall excavations and embankments [PDF]

open access: yes, 2020
Several guidance and formulation have been developed in the literature to account for the analysis of external surcharges adjacent to a propped excavation but less attention has been paid to the presence of sloping ground or embankments.
Ahangar Asr, A, Ogunyemi, OF
core   +2 more sources

Excavating “Excavating AI”: The Elephant in the Gallery [PDF]

open access: yesSSRN Electronic Journal, 2020
Two art exhibitions, “Training Humans” and “Making Faces,” and the accompanying essay “Excavating AI: The politics of images in machine learning training sets” by Kate Crawford and Trevor Paglen, are making a substantial impact on discourse taking place in the social and mass media networks, and some scholarly circles.
openaire   +3 more sources

CsCLE3 delays female flower anthesis in cucumber

open access: yesActa Societatis Botanicorum Poloniae, 2023
A corolla opening is a necessary process affecting the quality of fruits and market competitiveness in cucumber ( Cucumis sativus ). In the previous paper, we identified a unique cucumber line (‘6457’) that possesses extra-long ovaries and shows a ...
Mingyue Lei   +4 more
doaj   +1 more source

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