Results 11 to 20 of about 705,910 (335)

Durability of Self-Compacting Lightweight Aggregate Concretes (LWSCC) as Repair Overlays [PDF]

open access: yesJournal of Rehabilitation in Civil Engineering, 2017
For rehabilitation of damaged concrete structures, the durability of repair overlay is a very important issue. Self-compacting concretes (SCC) are known as a suitable repair overlay materials.
Hamed Pourahmadi Sefat Arabani   +4 more
doaj   +1 more source

The Influence of the Shaft on the Uplift Capacity of Single-Plate Helical Pile in Clay

open access: yesJournal of Marine Science and Engineering, 2023
Helical piles with small sizes are widely used in traditional civil engineering infrastructure application, especially in onshore electrical power industry. The floating offshore wind power industry has taken an interest in helical piles because of their
Le Wang, Hongzhen Chen, Yinghui Tian
doaj   +1 more source

A Predicted-Risk-Based Protection Approach for Turbine Generator Shafts against Fatigue Damage due to Islanding

open access: yesEnergies, 2022
A distributed generation steam turbine generator (hereafter referred to as turbine generator) improves the supply reliability of the local load when operated as a backup supply during islanding.
Bombay Babi, Pitshou N. Bokoro
doaj   +1 more source

Investigating the Influence of Shaft Balance Point on Clubhead Speed: A Simulation Study

open access: yesProceedings, 2020
In this study, a dynamic golfer model was used to investigate the influence of the golf shaft’s balance point (i.e., center of mass) on the generation of clubhead speed.
William McNally, John McPhee
doaj   +1 more source

Emergency situation analysis: On the example of underground mining radio communication system

open access: yesProceedings of the Mongolian Academy of Sciences, 2021
Underground mine is the most dangerous environment for miners to work in, and the miners need to be evacuated immediately in case of an accident. This article aims to develop route options for safe emergency evacuation of miners from areas where there ...
Batzorig Bazargur   +2 more
doaj   +1 more source

Local defect modelling and nonlinear dynamic analysis for the inter-shaft bearing in a dual-rotor system

open access: yesApplied Mathematical Modelling, 2019
This paper presents a force model for the inter-shaft bearing with a local defect on the surface of the outer race or the inner race, and the nonlinear dynamic characteristics of a dual-rotor system affected by the local defect are investigated.
Peng Gao, L. Hou, R. Yang, Yushu Chen
semanticscholar   +1 more source

Numerical Analysis on the Unsteady Radial Load on the Shaft of a Large-Scale Dredge Pump Unit [PDF]

open access: yesJournal of Applied Fluid Mechanics, 2023
Vibration and fatigue damage of pump shafts has become a prominent engineering problem, indicating the need for higher-quality reliability analysis of the pump unit in the design stage. In this study, the unsteady flow field in a large centrifugal dredge
L. Cao, T. Wu, T. Guo, J. Hu, J. Cao
doaj   +1 more source

Numerical Modeling on Blasting Stress Wave in Interbedding Rheological Rockmass for the Stability of the Main Shaft of Mine

open access: yesFrontiers in Earth Science, 2022
High rheological property and strong mining disturbance are prominent conditions in deep rock projects, and often present a coupled process to induce rockbursts, collapse and land subsidence.
Shuai Li, Chao Zheng, Yong Zhao
doaj   +1 more source

The Deviation of Semi-Theoretical and Semi-Empirical Water Inflow Prediction Formula Based on Sphere Coordinate Conversion and a Grouting Excavation Evaluation Method

open access: yesApplied Sciences, 2021
The water in the rock medium is exchanged with the confined aquifer through the fracture, which leads to the water inflow line in the confined aquifer is no longer horizontal.
Yonghong Wang   +3 more
doaj   +1 more source

A Morphometric Study Correlating Length of Femur with Fragments of its Shaft

open access: yesNational Journal of Clinical Anatomy, 2020
Background: Remains of bones can be studied to determine race, sex and stature of unidentified human bodies. Length of the femur correlates with measurements at different landmarks.
R S Suja   +3 more
doaj   +1 more source

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