To assure seismic isolation performance against design and beyond basis earthquakes in the nuclear facility components, lead inserted small-sized laminated rubber bearings (LRB), which has a 10 kN vertical load, have been designed quasi-statically tested to validate their mechanical properties previous studies. Following this study, shaking tests of these full-scale LRBs are performed discussed...

The precipitation conce ntration degree (PCD) and concentration period (PCP) in the Liaohe River basin (LRB) from 1960 to 2020 were calculated depending on daily data derived meteorological stations. mutations of PCD PCP identified by sliding t-test, spatiotemporal evolution characteristics before after mutation point further analyzed. Cross wavelet transform (CWT) was used reveal influence fou...

Continuous girder bridges have been extensively constructed in China over the past 30 years, and these tend to experience severe damage under ground motions with velocity pulses. In current research, an innovative linear friction damper (LFD) is proposed mitigate seismic damages of continuous subjected near-fault motions. The OpenSees platform adopted establish numerical model a bridge region. ...

As a major threat to ecosystem functions and national food security, soil erosion also exerts an influence on the water quality in basins operation maintenance of hydropower plants. Existing discussions about trends focus mainly its variation mutation over time. Few studies have addressed spatial mechanism. In this research, Sen’s slope estimation was coupled with Mann–Kendall model explore spa...

The study purpose was to analyse the peak EMG at five upper-body muscles during four different jab techniques in youth boxers.
 Materials and methods. Male national-level boxers (n=7) were assessed for electromyography (EMG) of anterior deltoid (AD), biceps brachii (BB), triceps (TB), flexor carpi radialis (FCR), upper trapezius (UT) while performing techniques: long-range targeting head (...

The first phase of the seismically excited base-isolated benchmark building was received well by the structural control community, culminating in the March 2006 journal special issue. The special issue contained contributions from over dozen participants world-wide. While the focus of the Phase I effort was on linear isolation systems, Phase II attempts to galvanize research efforts on control ...

This study aims to investigate seismic behavior of lead-core rubber elastomeric bearing (LRB) and curved surface friction pendulum slider (FPS) base isolated models considering torsional irregularity for typical reinforced concrete buildings. Nonlinear structural members was considered in analysis models. Total 1408 different nonlinear time history analyses 3-dimensional 3, 5, 7 9-story were pe...