Results 21 to 30 of about 6,922,029 (289)

Mass proportional damping in nonlinear time-history analysis [PDF]

Proceedings of the 3rd International Conference on Material, Mechanical and Manufacturing Engineering, 2015
Rayleigh damping is the main form in direct integral method for structural nonlinear dynamic analysis under seismic wave. As stiffness proportional damping usually should be neglected for its significant influence on limit time increment, reasonable mass proportional damping becomes more important in actual engineering.
Yungui Li, Jin Duan, Xiaoming Chen
openaire   +1 more source

Base Pounding Model and Response Analysis of Base-Isolated Structures under Earthquake Excitation

Applied Sciences, 2017
In order to study the base pounding effects of base-isolated structure under earthquake excitations, a base pounding theoretical model with a linear spring-gap element is proposed.
Chengqing Liu, Wei Yang, Zhengxi Yan, Zheng Lu, Nan Luo   +4 more
doaj   +1 more source

Optimal Earthquake Intensity Measures for Probabilistic Seismic Demand Models of Base-Isolated Nuclear Power Plant Structures

Energies, 2021
The purpose of this study is to evaluate the optimal earthquake intensity measures (IMs) for probabilistic seismic demand models (PSDMs) of the base-isolated nuclear power plant (NPP) structures. The numerical model of NPP structures is developed using a
Duy-Duan Nguyen, Tae-Hyung Lee, Van-Tien Phan   +2 more
doaj   +1 more source

Things change: Women’s and men’s marital disruption dynamics in Italy during a time of social transformations, 1970-2003 [PDF]

, 2010
We study women’s and men’s marital disruption in Italy between 1970 and 2003. By applying an event-history analysis to the 2003 Italian variant of the Generations and Gender Survey we found that the spread of marital disruption started among middle ...
A Howell, A Moran, AC Antoniou, AJ Nixon, B Bulman, CK Anders, D Ford, D G R Evans, D Sidransky, DG Evans, DGR Evans, F Knox, F Lalloo, F Lalloo, F Lalloo, FP Li, G Parmigiani, IO Ellis, IS Fentiman, J Dawson, J Peto, J Varley, JC Figueiredo, JM Birch, K Bergfeldt, M Krainer, MG Fitzgerald, N Loman, R Hartley, S Jmor, SA Gayther, SR Lakhani, SR Young, TS Frank, W Han   +34 more
core   +2 more sources

Vibration analysis of large bulb tubular pump house under pressure pulsations

Water Science and Engineering, 2009
A 3D finite element model of the Huaiyin third pumping station of the Eastern Route of the South-to-North Water Transfer is described in this paper. Two methods were used in the calculation and vibration analysis of the pumping station in both the time ...
Xin Wang, Tong-chun Li, Lan-hao Zhao
doaj   +1 more source

Ground Motion Time History Simulation for Seismic Response History Analysis

Frontiers in Earth Science, 2022
In the seismic design and analysis of important structures, ground motion time histories are generally required as the input for the conduction of seismic response history analysis.
Lanlan Yang, Lanlan Yang, Lanlan Yang, Ziyue Fu, Dengfeng Wang   +4 more
doaj   +1 more source

The Effects of Population Size Histories on Estimates of Selection Coefficients from Time-Series Genetic Data. [PDF]

, 2016
Many approaches have been developed for inferring selection coefficients from time series data while accounting for genetic drift. These approaches have been motivated by the intuition that properly accounting for the population size history can ...
Jewett, Ethan, Song, Yun, Steinrücken, Matthias   +2 more
core   +1 more source

Seismic Isolation of Bridges Using the Principle of Electromagnetic Attraction and Repulsion

Romanian Journal of Transport Infrastructure, 2017
This paper presents a new type of seismic isolator that uses the principle of electromagnetic attraction and repulsion, to control the friction force between two electromagnets during earthquakes.
Constantinescu Silviu Alexandru, Răcănel Ionuț Radu   +1 more
doaj   +1 more source

Seismic Evaluation of Steel Plate Shear Walls in Different Configurations [PDF]

Journal of Rehabilitation in Civil Engineering
Steel plate shear walls (SPSWs) are a cost-efficient system to resist seismic lateral loads. Post-buckling strength, tension field action, and high energy absorption capacity are among the advantages of SPSWs. A beam-coupled SPSW consists of two pairs of
Seyed Mohmmad Ali Abbaspoor Haghighat, Ali Alibazi, Reza Moradifard, Lotfi Guizani, Munzer Hassan   +4 more
doaj   +1 more source

The dynamics of proving uncolourability of large random graphs I. Symmetric Colouring Heuristic [PDF]

, 2003
We study the dynamics of a backtracking procedure capable of proving uncolourability of graphs, and calculate its average running time T for sparse random graphs, as a function of the average degree c and the number of vertices N. The analysis is carried
Achlioptas D Molloy M, Achlioptas D Moore C, Alon N, Cheeseman P Kanefsky B Taylor M W J Mylopoulos R Reiter, Cocco S, Cocco S Monasson R, Cocco S Montanari A Monasson R Semerjian G, Ein-Dor L, Garey M R, Kaporis A C, Knuth D E, Leighton F T, Liat Ein-Dor, Miller R E, Rémi Monasson, Turner J S   +15 more
core   +1 more source