Results 21 to 30 of about 705,910 (335)
Practical Evaluation of Using Lightweight Self-Compacting Concrete in Reinforced Concrete Constructions [PDF]
Journal of Structural and Construction Engineering, 2019 Self-compacting concrete or SCC can be considered as the concrete of the future. The most important feature of self-compacting concrete is flowing under its own weight to fill the mould or framework completely, and also to create a dense and sufficiently
hamed pourahmadi sefat arabani +4 more
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Diagnosis of Multiple Faults in Rotating Machinery Using Ensemble Learning
Sensors, 2023 Fault diagnosis of rotating machines is an important task to prevent machinery downtime, and provide verifiable support for condition-based maintenance (CBM) decision-making.
Udeme Ibanga Inyang +2 more
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Physics Letters B, 2014 A new family of inflation models is introduced and studied. The models are characterised by a scalar potential which, far from the origin, approximates an inflationary plateau, while near the origin becomes monomial, as in chaotic inflation. The models are obtained in the context of global supersymmetry starting with a superpotential, which ...
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Access to Deposits as a Stage of Mining Works
Energies, 2022 An extremely important role in the underground method of mining deposits is the type of access, which is the initial stage of the mining operations. The main feature of mineral deposits is their exhaustiveness and the inability to restore resources. This
Krzysztof Skrzypkowski +3 more
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Optical fiber sensors for coal mine shaft integrity and equipment condition monitoring [PDF]
, 2019 Shaft is an important structure of mine. Deep mining increases mine pressure, induces shaft deformation and affects mine normal lifting. How to improve the inspection efficiency, reduce the maintenance cost and ensure the normal operation of the shaft is
Fu, J. +9 more
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Mechanical property and microstructure of fly ash-based geopolymer by calcium activators
Case Studies in Construction MaterialsGeopolymer is a green and environmentally friendly new type of gel material generated from the reaction of activators with silica-alumina raw materials, possessing extensive research and application value.
Jingjing Yu +5 more
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Acta Orthopaedica et Traumatologica Turcica, 2020 Objective: The purpose of this study was to evaluate the efficacy of lateral approach and anterolateral anatomical locked plate fixation on clinical and radiological healing of extra-articular distal humeral fractures.
Atilla Parmaksızoğlu +4 more
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Meitan kexue jishu, 2023 The shaft is a key project, including the mining of shaft engineering minerals and the development and utilization of underground space. As the lower part of the proposed shaft has the advantage of a production system, the use of gravity slag removal is ...
LIU Zhiqiang +6 more
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The coupling vibration characteristics of a flexible shaft-disk-blades system with mistuned features
Applied Mathematical Modelling, 2019 The purpose of this paper is to investigate the coupling vibration characteristics of a flexible shaft-disk-blades system with mistuned features. There are some new phenomena due to the coupling effects of shaft-bending, shaft-torsion, disk-transverse ...
Chaofeng Li +3 more
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Speed control device for a heavy duty shaft [PDF]
, 1980 A speed control device is characterized by a reference speed shaft spatially related to a heavy duty shaft, a drive train for driving the reference speed shaft at a constant angular velocity, a drive train for driving the heavy duty shaft at a variable ...
Ford, A. G.
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