Results 81 to 90 of about 919 (260)

Weak‐Story Mitigation and Drift Redistribution in Moment‐Resisting Frames Using Stepping Rocking Walls

Earthquake Engineering &Structural Dynamics, EarlyView.
ABSTRACT This study investigates the seismic response of moment‐resisting frames retrofitted with a stepping rocking wall, with emphasis on weak‐story mitigation and residual drift reduction under both ordinary and pulse‐like ground motions. Nonlinear response‐history analyses are conducted on 9‐story and 20‐story SAC Los Angeles frames.
Mehrdad Aghagholizadeh
wiley   +1 more source

Impulsive Problems for Fractional Differential Equations with Functional Boundary Value Conditions at Resonance

Journal of Function Spaces, 2019
We establish novel results on the existence of impulsive problems for fractional differential equations with functional boundary value conditions at resonance with dim⁡Ker L=1.
Bingzhi Sun, Shuqin Zhang, Weihua Jiang
doaj   +1 more source

Learning Rocking Dynamics From Sparse Shake‐Table Data With Interpretable Physics‐Informed Neural Networks

Earthquake Engineering &Structural Dynamics, EarlyView.
ABSTRACT We present a hybrid interpretable Physics‐Informed Neural Network Long‐Short Term Memory (Hybrid PINN LSTM) framework for predicting the seismic response of rocking blocks. Existing analytical models rely on uncertain idealizations, while purely data‐driven and machine‐learning approaches lack physical consistency and interpretability.
Shirley Shen, Christian Málaga‐Chuquitaype   +1 more
wiley   +1 more source

Existence of Almost Periodic Solutions for Impulsive Neutral Functional Differential Equations

Abstract and Applied Analysis, 2014
The existence of piecewise almost periodic solutions for impulsive neutral functional differential equations in Banach space is investigated. Our results are based on Krasnoselskii’s fixed-point theorem combined with an exponentially stable strongly ...
Junwei Liu, Chuanyi Zhang
doaj   +1 more source

Energy‐Based Characterisation of Earthquake Damage in Masonry Infills Through Combined In‐Plane and Out‐of‐Plane Experimental Tests

Earthquake Engineering &Structural Dynamics, EarlyView.
ABSTRACT The seismic capacity of structural systems/members is usually defined in terms of deformation thresholds. Although this is effective in many circumstances, disregarding cumulative quantities such as hysteretic energy may be ineffective when low‐cycle fatigue is relevant (e.g., long‐duration ground motions, very soft soils, ground‐motion ...
Roberto Gentile, Giulia Angelucci, Jingren Wu, Marilisa Di Benedetto, Riccardo Milanesi, Giulio Augusto Tropea, Fabrizio Mollaioli, Fatemeh Jalayer, Fabio Freddi, Fabio Di Trapani, Paolo Morandi, Gerard J. O'Reilly   +11 more
wiley   +1 more source

Impulsive functional differential equations with variable times

Computers & Mathematics with Applications, 2004
The authors investigate the existence of solutions to a first-order retarded functional-differential equation with impulses. The case including higher-order equations and studied by the same authors can be found in [Dyn. Syst. Appl. 12, No. 3--4, 383--392 (2003; Zbl 1073.34092)].
Benchohra, M., Henderson, J., Ntouyas, S.K., Ouahab, A.   +3 more
openaire   +1 more source

Some existence and uniqueness results for first-order boundary value problems for impulsive functional differential equations with infinite delay in Fréchet spaces

International Journal of Mathematics and Mathematical Sciences, 2006
A recent nonlinear alternative for contraction maps in Fréchet spaces due to Frigon and Granas is used to investigate the existence and uniqueness of solutions to first-order boundary value problems for impulsive functional differential equations with ...
John R. Graef, Abdelghani Ouahab
doaj   +1 more source

Identifying Affective Patterns in Patients With Eating Disorders: A Latent Profile Analysis

European Eating Disorders Review, EarlyView.
ABSTRACT Background Emotional difficulties are common among individuals with Eating Disorders (EDs). Following Panksepp's theoretical model, which conceptualises primary emotional systems as the evolutionary foundation of personality, this study aimed to identify distinct profiles of primary emotional systems within a clinical eating disorder (ED ...
Rachele Fasolato, Chiara Bonetto, Rosa Bruna Dall’Agnola, Emily Boifava, Federica Bonora, Mariasole Castellazzi, Silvia Castelli, Doriana Cristofalo, Silvia Danese, Monica Ferlin, Stuart B. Murray, Martina Puglisi, Silvia Rigon, Antonio Elia Rizzo, Benedetta Signoretto, Corrado Barbui   +15 more
wiley   +1 more source

An Existence Result for Nonlocal Impulsive Second-Order Cauchy Problems with Finite Delay

Abstract and Applied Analysis, 2013
We deal with the existence of mild solutions of a class of nonlocal impulsive second-order functional differential equations with finite delay in a real Banach space .
Fang Li, Huiwen Wang
doaj   +1 more source

Existence of Fractional Impulsive Functional Integro-Differential Equations in Banach Spaces

Applied System Innovation, 2019
In this paper, we establish the existence of piece wise (PC)-mild solutions (defined in Section 2) for non local fractional impulsive functional integro-differential equations with finite delay.
Dimplekumar Chalishajar, Chokkalingam Ravichandran, Shanmugam Dhanalakshmi, Rangasamy Murugesu   +3 more
doaj   +1 more source