Results 21 to 30 of about 944 (288)

Evaluation of the effects of a load shedding at a lignite power plant

open access: yesEnergy Science & Engineering, 2021
The load‐shedding scenario describes an unscheduled load reduction in a power plant so that it produces only the electricity that is needed by the plant itself. The reason for such a scenario is a collapse of power supply in the transmission network.
Jens H. Prause   +4 more
doaj   +1 more source

High-temperature ultrasonic thickness monitoring for pipe thinning in a flow-accelerated corrosion proof test facility

open access: yesNuclear Engineering and Technology, 2017
In order to monitor the pipe thinning caused by flow-accelerated corrosion (FAC) that occurs in coolant piping systems, a shear horizontal ultrasonic pitch-catch waveguide technique was developed for accurate pipe wall thickness monitoring.
Yong-Moo Cheong   +2 more
doaj   +1 more source

Hurricane Sandy and engineered response created habitat for a threatened shorebird

open access: yesEcosphere, 2019
The intensity of Atlantic Ocean hurricanes is predicted to increase, and although disturbance is recognized as a fundamental driver of ecological processes, the benefits of hurricanes to ecological systems are seldom acknowledged.
Katie M. Walker   +8 more
doaj   +1 more source

Experimental Investigation on the Acoustic Scattering Matrix for a Centrifugal Pump

open access: yesProceedings, 2018
Fluid-dynamic noise in centrifugal pumps as a significant sound source in piping systems has gained high attention due to the requirements of vibration and noise reduction in many fields. The acoustic characteristics of the fluid-dynamic noise from pumps
Guidong Li, Jorge Parrondo, Yang Wang
doaj   +1 more source

Nonlinear Coupled Motions of a Pipe-in-Pipe System Experiencing Vortex-Induced Vibrations

open access: yesNonlinear Dynamics, 2023
Abstract This paper delves into the dynamics of the pipe-in-pipe system, crucial in offshore oil and gas exploration, featuring an inner drill string nestled within an outer riser. A reduced-order model with five degrees of freedom is proposed to capture the coupled dynamics of this system.
Xiangyu Hou   +3 more
openaire   +1 more source

Robust decentralized model predictive control approach for a multi-compressor system surge instability including piping acoustic

open access: yesCogent Engineering, 2018
One of the major problems in modern gas compressing stations is related to surge control of compression system with multi-compressor. Due to the coupled system dynamics, standard controllers can interfere with each unit′s performance.
Hashem Imani   +4 more
doaj   +1 more source

Study on the fiber fouling in drying exhaust heat utilization of wood industry

open access: yesE3S Web of Conferences, 2018
Based on the viscoelastic and creep deformation properties, a new deposition mechanism model for slender wood fiber particles in wast heat utilization is proposed in this paper.
Pan Yadi   +6 more
doaj   +1 more source

Investigations of the Formation Mechanism and Pressure Pulsation Characteristics of Pipeline Gas-Liquid Slug Flows

open access: yesJournal of Marine Science and Engineering
The pipeline system is widely used in marine engineering, and the formation mechanism and flow patterns of two-phase slug flows are of great significance for the optimal design of and vibration prevention in a complex pipeline system. Aiming at the above
Gaoan Zheng, Pu Xu, Lin Li, Xinghua Fan
doaj   +1 more source

“Pipe organ” air-coupled broad bandwidth transducer [PDF]

open access: yes2017 IEEE International Ultrasonics Symposium (IUS), 2017
Air-coupled transducers are used to conduct fast non-contact inspections in NDT. Normally, the bandwidth of a conventional transducer can be enhanced, but with a cost to its sensitivity. However, low sensitivity is very disadvantageous in air-coupled devices. This paper presents a methodology for improving the bandwidth of an air-coupled micro-machined
Zhu, Botong   +4 more
openaire   +1 more source

Overexpression of CDT1 inhibits cell cycle progression at S phase by interacting with the mini‐chromosome maintenance complex and causes DNA damage

open access: yesFEBS Open Bio, EarlyView.
CDT1 is an essential protein for DNA replication licensing that loads the MCM complex, the eukaryotic replicative DNA helicase, onto replication origins. Overexpression of CDT1 induces cell cycle arrest at the S phase. Here we showed CDT1 inhibits the progression of replication forks by interacting with the MCM complex, leading to the stalling and ...
Takashi Tsuyama   +7 more
wiley   +1 more source

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