Results 21 to 30 of about 32,286 (246)

Study on Share Rate of Support Structure for Super-Large Span Twin Tunnels with Small Interval

open access: yesApplied Sciences, 2022
Super-large span twin tunnels, which can relieve traffic burden and improve the efficiency of roads, have been rapidly popularized in urban construction.
Xuwei Zhao   +4 more
doaj   +1 more source

Design optimization and observed performance of a super-large foundation pit excavation subjected to unsymmetrical loading in water-rich floodplain: A case study

open access: yesSoils and Foundations, 2023
In this work, a whole-process solution was presented to reduce the risks of a super-large foundation pit excavation in water-rich floodplain and subjected to unsymmetrical loading. Firstly, numerical simulations were conducted to study the “size effect”, and the optimal control measures were proposed, i.e., 2 circles of diaphragm wall were used to ...
Bo Liu   +4 more
openaire   +2 more sources

A Speed-Governing System Model with Over-Frequency Protection for Nuclear Power Generating Units

open access: yesEnergies, 2019
Overspeed is more likely to occur in the process of load rejection or large disturbances for nuclear steam turbines due to the large parameter range and low steam parameters, as well as the power of the low-pressure cylinder accounting for a high ...
Li Wang   +3 more
doaj   +1 more source

Combustion adjustment experiment of over-temperature in heating surfaces for 600 MW four-wall tangentially fired boiler

open access: yesEnergy Reports, 2022
Over-temperature problem have been occurred at vertical water wall and platen super-heater of 600 MW four-wall tangentially fired boiler often since it is putted into production, the AGC function of the unit cannot be used properly, and the load capacity
Chunxing Xu, Meishuang Li
doaj   +1 more source

Source-sink-flow Characteristics and Super-high Yield Potential of the Super-large-panicle Rice Line DS23 in South China

open access: yesGuangdong nongye kexue, 2023
【Objective】It aims to study the yield performance and source-sink-flow characteristics of new strain of super-large-panicle rice DS23 in early season, and explore the source-flow-sink characteristics and super-high yield potential of DS23, with an aim to
Jiakai WANG   +7 more
doaj   +1 more source

Load transfer of super-long piles considering influences of non-Darcy flow

open access: yesYantu gongcheng xuebao, 2022
In order to establish the load transfer method for the super-long piles in loess areas, based on the non-Darcy flow law and the central difference method, the formula for calculating pore water pressure under the action of non-Darcy flow is deduced, and ...
ZHANG En-xiang 1, 2, ZHAO Tian-shi 3, WANG Zheng-zhen 3, 4, DAI Guo-liang 4, ZHOU Yong 3, LONG Zhao 1, 2, YANG Yang 5
doaj   +1 more source

Wind Load Characteristics and Action Mechanism on Internal and External Surfaces of Super-Large Cooling Towers under Wind-Rain Combined Effects [PDF]

open access: yesMathematical Problems in Engineering, 2018
By focusing on wind-rain two-way coupling algorithm, simulation iterations of wind field and raindrops in the world highest cooling tower (210m) in northwest China were carried out using continuous phase and discrete phase models based on CFD numerical simulation.
Shitang Ke, Wenlin Yu, Yaojun Ge
openaire   +1 more source

The impact of matches and travel on rugby players' sleep, wellness and training.

open access: yesPLoS ONE, 2022
Matches and travel, which are common in professional team sports, may have a negative impact on players. The aim of this study was to quantify the impact on sleep, wellness and training of Super Rugby players.
Michele Lo   +4 more
doaj   +2 more sources

Comparison of external load measures per minute based on match seasonal periods and playing positions of a soccer Turkish super league team

open access: yesBMC Musculoskeletal Disorders, 2023
Background Turkish Super League teams need more information about the external load. Considering the specific country and the coaches’ philosophies, the purpose of this study was to compare the external match load of a Turkish Super League team ...
Zeki Akyildiz   +8 more
doaj   +1 more source

Analysis of Synchronous Loop of Hydraulic Multi-cylinder Load of 60 MN Super Large Tonnage Compression shear tester

open access: yesIOP Conference Series: Materials Science and Engineering, 2020
Abstract In order to meet the mechanical properties testing requirements of super large tonnage bridge bearings, the 60 MN super large tonnage compression shear test equipment is specially developed. This article systematically carries out load analysis and machine working principle analysis, designs a four-cylinder synchronous control ...
Xishan Liu   +3 more
openaire   +1 more source

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