Results 1 to 10 of about 461,045 (411)
Optimization-Based Framework for Excavation Trajectory Generation [PDF]
arXiv, 2020 In this paper, we present a novel optimization-based framework for autonomous excavator trajectory generation under various objectives, including minimum joint displacement and minimum time. Traditional methods on excavation trajectory generation usually separate the excavation motion into a sequence of fixed phases, resulting in limited trajectory ...
Yajue Yang +4 more
arxiv +3 more sources
Optimization of powder factor, fragmentation and oversized boulders through subsystem studies in an opencast coal mine [PDF]
International 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
THE WORSHIPPING FORMULAE OF ROYAL ADORATION SCENES IN ANCIENT EGYPTIAN TEMPLES FROM THE OLD KINGDOM TILL THE END OF THE LATE PERIOD [PDF]
Journal 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
Jin'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
Journal of Marine Science and Engineering, 2023 An ultra-deep L-shape foundation pit in a coastal area has recently been constructed and monitored. The project overview, geological conditions, excavation sequence and monitoring scheme are introduced in detail.
Ji-fei Cui, Zhenkun Yang, R. Azzam
semanticscholar +1 more source
Research on non-repeated advance support technology in mining roadway
Meikuang 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
Lateral Dynamic Response of Helical Pile in Viscoelastic Foundation Considering Shear Deformation
Applied 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
A Simplified Method for Analysis of Laterally Loaded Piles considering Cyclic Soil Degradation
Advances 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
Jin'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
SN Applied Sciences, 2021 The control of deformation and stability of the deep excavation walls under seismic and static loads is one of the most important issues in geotechnical engineering. Therefore, in the present study, using the finite element method and taking into account
M. Maleki, A. Nabizadeh
semanticscholar +1 more source