Results 41 to 50 of about 14,680,064 (262)

Structural-Health-Monitoring-Oriented Finite Element Model for a Specially Shaped Steel Arch Bridge and Its Application

Mathematical and Computational Applications, 2023
To rigorously evaluate the health of a steel bridge subjected to vehicle-induced fatigue, both a detailed numerical model and effective fatigue analysis methods are needed. In this paper, the process for establishing the structural health monitoring (SHM)
Li Dai, Mi-Da Cui, Xiao-Xiang Cheng
doaj   +1 more source

Bayesian Model Updating of Structural Parameters Using Temperature Variation Data: Simulation

Machines
Finite element (FE) models are widely used in structural health monitoring to represent real structures and assess their condition, but discrepancies often arise between numerical and actual structural behavior due to simplifying assumptions, uncertain ...
Ujjwal Adhikari, Young Hoon Kim
doaj   +1 more source

Model Updating for Large-Scale Railway Bridge Using Grey Wolf Algorithm and Genetic Alghorithms

Journal of Materials and Engineering Structures, 2022
This paper proposes a novel hybrid algorithm to deal with an inverse problem of a large-scale truss bridge. Grey Wolf Optimization (GWO) Algorithm is a well-known and widely applied metaheuristic algorithm.
Tung NGUYEN-XUAN, Thang LE-XUAN, Lan NGUYEN-NGOC, Hoa TRAN-NGOC, Long NGUYEN-NGOC, Thanh BUI-TIEN   +5 more
doaj  

Structural Simulation Model Updating Based on Improved MCMC Algorithm and Surrogate Model

Shanghai Jiaotong Daxue xuebao
To enhance the accuracy of finite element model simulation, a model updating method based on Bayesian theory is proposed, and the updating efficiency is improved by integrating improved Markov chain Monte Carlo (MCMC) algorithm and surrogate model.
MIAO Ji, DUAN Liping, LIU Jiming, LIN Siwei, ZHAO Jincheng
doaj   +1 more source

Model updating incorporating measured response uncertainties and confidence levels of tuning parameters [PDF]

, 2016
Automated model updating of real civil engineering structures is often very challenging due to the presence of different degrees of uncertainty in measured responses and confidence levels of the tuning parameters used.
David P. Thambiratnam, Nguyen, Andy, Kodikara, K.A. Tharindu L., Chan, Tommy H.T., K.A. Tharindu L. Kodikara, Andy Nguyen, Thambiratnam, David P., Tommy H.T. Chan   +7 more
core   +1 more source

Early Body Mass Index z‐Score Change and Resolution of Severe Malnutrition in Children With Sickle Cell Anemia in a Low‐Income Setting: A Prospective Single‐Arm Extension Study

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Children with sickle cell anemia (SCA) in low‐income settings are at risk of severe malnutrition, but optimal nutritional management has not been established. We evaluated an intensified ready‐to‐use therapeutic food (RUTF) regimen in children with persistent severe malnutrition after initial treatment and assessed whether early ...
Safiya Gambo, Shehu Umar Abdullahi, Hassan Adam Murtala, Halima Kabir, Khadija A. Shamsu, Sari A. Acra, Virginia A. Stallings, Mark Rodeghier, Michael R. DeBaun, Lauren J. Klein   +9 more
wiley   +1 more source

Model Updating Using Measurements from Sensors Installed in Arbitrary Positions and Directions

Applied Sciences, 2019
The present study proposes a method for model updating using measurements from sensors installed in arbitrary positions and directions. Modal identification provides mode shapes for physical quantities (acceleration strain, etc.) measured in specific ...
Keunhee Cho, Young-Hwan Park, Jeong-Rae Cho   +2 more
doaj   +1 more source

The Impact of the COVID‐19 Pandemic on Childhood Cancer Survival: A Population‐Based Assessment of Survival Patterns Between 2015 and 2023 in Germany

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Numerous international studies have reported declines in new cancer diagnoses, delayed diagnoses and disruptions in cancer treatment following the implementation of COVID‐19 pandemic public health measures, raising concerns that these effects may ultimately contribute to increased cancer mortality.
Friederike Erdmann, Maike Wellbrock, Javier Louro, Arndt Borkhardt, Martin Schrappe, Claudia Trübenbach, Desiree Grabow, Cécile M. Ronckers, Joachim Schüz   +8 more
wiley   +1 more source

Evaluation of Performance Indicator of Railway Bridges Using Updated Finite Element Model

Journal of Mechanical Engineering, 2019
Structural health monitoring (SHM) can provide information needed to make important decisions regarding the maintenance of bridge structures. However, the data collected from monitoring needs to be first translated into actionable, quantitative or ...
Milan Sokol, Monika Márföldi, Michal Venglár, Katarína Lamperová   +3 more
doaj   +1 more source

Referral Patterns and Diagnostic Timeliness in Pediatric Cancer: A Hospital‐Based Study in Indonesia

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Timely diagnosis and treatment are critical for improving survival among children with cancer. In low‐ and middle‐income countries (LMICs), delays are common and may be influenced by fragmented referral pathways and diagnostic limitations.
Nur Melani Sari, Regina Hadi Putri, Fatimah Assyifa, Judith Spijkerman, Gertjan Johannes Kaspers, Susi Susanah   +5 more
wiley   +1 more source