Results 31 to 40 of about 5,686,504 (299)

Influences of Depth of the Falling-sill on the Flow State Conversion of Underflow Hydraulic Jump

open access: yesRenmin Zhujiang, 2023
In restricted topographic conditions,a falling-sill can be set at the end of the discharge chute for the spillway.The length of the dissipation pool is shortened by increasing the flow velocity attenuation along the way of the jet,or increasing the ...
LIU Yiheng   +4 more
doaj  

SEISMIC ISOLATION AND ENERGY DISSIPATION: THEORETICAL BASIS AND APPLICATIONS [PDF]

open access: yes, 2008
The protection of the building from seismic events is a fundamental phase in the structures design should be introduced to avoid the loss of lives especially when it occurs in developing countries.
Marsico, Maria Rosaria
core   +1 more source

SMA-Activated Double-Stage Yielding BRB: Experimental and FEM Insights

open access: yesBuildings
To address the limitations of traditional buckling-restrained braces (BRB), which feature a single-stage yielding and inadequate energy dissipation under small earthquakes, this study proposes a novel double-stage yielding buckling-restrained brace (DSY ...
Huijie Huang   +4 more
doaj   +1 more source

Vibration energy dissipation of a composite material/Kompozicinės medžiagos vtrpesių energijos disipacija

open access: yesJournal of Civil Engineering and Management, 1998
The paper discusses the problem of evaluating vibration energy dissipation of a composite material. It is suggested to express the dissipation cofficient in a line (2).
Petras Baradokas
doaj   +1 more source

Numerical Analysis of Mechanical Energy Dissipation for an Axial-Flow Pump Based on Entropy Generation Theory

open access: yesEnergies, 2019
Mechanical energy dissipation is a major problem affecting hydraulic machinery especially under partial-load conditions. Owing to limitations of traditional methods in evaluating mechanical energy dissipation, entropy generation theory is introduced to ...
Simin Shen, Zhongdong Qian, Bin Ji
doaj   +1 more source

A five-parameter constitutive model for hysteresis shearing and energy dissipation of rock joints

open access: yesInternational Journal of Mining Science and Technology, 2022
Rock joints exhibit hysteresis shearing behavior and produce energy dissipation under shear cyclic loads, which however cannot be accurately depicted by existing constitutive models. This paper establishes a constitutive model for hysteresis shearing and
Yikun Li   +3 more
doaj   +1 more source

Rail hidden damage detection based on the modal curvature differences method

open access: yesAdvances in Mechanical Engineering
The rail hidden damage includes rail bottom and rail jaw cracks, which cannot be easily detected during the early development stage, and pose a significant danger and risk of rail-breaking accidents. This paper proposed an effective method to detect rail
Weirong Li   +4 more
doaj   +1 more source

Artificial molecular machines and motors—Design and control of nanoscale motion

open access: yesFEBS Letters, EarlyView.
Molecules are constantly moving because of thermal fluctuations, but random motion alone cannot be exploited to perform directional tasks. Artificial molecular machines use chemical, electrical, or light energy to bias this motion. Molecular shuttles, rotary motors, and supramolecular pumps illustrate how nanoscale movement can be controlled and ...
Leonardo Andreoni, Alberto Credi
wiley   +1 more source

Experimental study on energy dissipation and fragmentation characteristics of gas-bearing coal under combined dynamic and static loading

open access: yesMeitan xuebao
To explore the energy dissipation and fragmentation characteristics of gas-bearing coal under combined dynamic and static load, the impact experiment of gas-bearing coal under different impact velocities and axial compressive stress ratios was carried ...
Huaiqian LIU   +6 more
doaj   +1 more source

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