Results 81 to 90 of about 62,192,337 (220)

Multi‐level fatigue reliability assessment of reinforced concrete railway bridges

Structural Concrete, EarlyView.
Abstract This paper presents a multi‐level reliability framework for assessing the fatigue life of reinforced concrete (RC) railway trough bridges subjected to cyclic loading. The framework incorporates increasing levels of analytical complexity and real‐world data in four steps. First, an analytical model applies S–N curves and the Palmgren–Miner rule
Silvia Sarmiento, Jaime Gonzalez‐Libreros, Chao Wang, Lennart Elfgren, Ola Enoksson, Tommy Höjsten, Lars‐Olof Andersson, Gabriel Sas   +7 more
wiley   +1 more source

Weighted Inverse Weibull and Beta-Inverse Weibull Distribution [PDF]

, 2010
The weighted inverse Weibull distribution and the beta-inverse Weibull distribution are considered. Theoretical properties of the inverse Weibull model, weighted inverse Weibull distribution including the hazard function, reverse hazard function, moments,
Kersey, Jing Xiong
core  

A probabilistic framework for modeling chloride‐induced corrosion and related load‐deformation behaviour of reinforced concrete

Structural Concrete, EarlyView.
Abstract Chloride‐exposed reinforced‐concrete structures often suffer localized corrosion, so corrosion initiation time and average steel loss are poor indicators of structural performance. This paper presents a spatially resolved, proof‐of‐concept framework that couples diffusion‐based chloride ingress and initiation with a localized morphology model ...
Deniz Yilmaz, Karel Thoma, Ueli Angst
wiley   +1 more source

Matrix Approach to Computing MTTF of a System

IEEJ Transactions on Electrical and Electronic Engineering, EarlyView.
This paper proposes a new method to compute the mean time to failure (MTTF) of a system that can be expressed with a combinatorial model whose components fail with i. i. d. The key idea is to use a matrix approach that replaces every component reliability with a specific matrix and replaces every operation (addition, subtraction, multiplication, and ...
Masahiro Hayashi
wiley   +1 more source

Evaluation of the Sex and Species Distribution, Breeding, and Life Expectancy of Zoo‐Housed Chameleons

Zoo Biology, EarlyView.
ABSTRACT More than a third of the 202 identified chameleon species are classified as “vulnerable” or “critically endangered”. No data is available regarding the life expectancy of chameleons kept in zoos. The objectives of this study were to determine the sex and species distribution of chameleons kept in zoological institutions, and to assess their ...
Amélie Aduriz, Floriane Plard, Claire Vergneau‐Grosset   +2 more
wiley   +1 more source

Inference for the weibull distribution based on fuzzy data

, 2013
Los procedimientos clásicos de estimación para los parámetros de la distribuciónWeibull se encuentran basados en datos precisos. Se asume usualmenteque los datos observados son números reales precisos.
Pak, Abbas, Parham, Gholam Ali, Saraj, Mansour   +2 more
core  

Energy Flows Balance of Electric‐Heating Interconnected Microgrids Under Grid‐Forming Converter Integration Based on Heterogeneous Graph Convolutional Network

Energy Internet, EarlyView.
ABSTRACT The combination of electric‐heating interconnected microgrids (EHIMs) with grid‐forming converters (GFMCs) offers a highly promising approach to improving energy management within decentralised energy systems. Despite its potential, precisely modelling and analysing energy flow in such systems remains a considerable challenge due to the ...
Ji Li, Jinduo Yang, Yang Kou, Qingyuan Zhang, Xiao Hu, Yang Gao, Fei Fei Li, Wei Le Liang, Yiyan Li, Ming Li, Lei Xu, Kepaiyitulla Tursun, Yan Qing Peng, Ying Li Huo, Yun Shan Wang, Ze Zhen Zhang   +15 more
wiley   +1 more source

Time to Breakdown for Type I Motor Winding Insulation Under High‐Frequency High‐Slew‐Rate Square Wave Voltages

High Voltage, EarlyView.
ABSTRACT The emergence of (ultra)wide bandgap ((U)WBG)‐based devices has significantly enhanced performance in high‐frequency switching applications, enabling breakthroughs in electric transportation, aerospace, and renewable energy systems. However, it also presents considerable challenges to insulation systems, such as electric motor winding ...
Easir Arafat, Md Asifur Rahman, Farzana Islam, Mona Ghassemi   +3 more
wiley   +1 more source

Stem water content predicts drought‐induced mortality in tropical semiarid species

Functional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Hydraulic Failure is one of the primary mechanisms underlying plant mortality during drought. Hydraulic failure occurs when the plant's xylem, under water stress, crosses a critical percentage of loss of xylem hydraulic conductivity (PLC) threshold, which causes the ...
Lussarina Oliveira Lima, Angela Lucena Nascimento Jesus, Vivian Barros Talmag, Rafael Silva Oliveira, Francisca Soares de Araújo, Arlete Aparecida Soares, Cleiton Breder Eller   +6 more
wiley   +1 more source

Predicting disease spread from host movement data: Chronic wasting disease in North America as a case study

Journal of Animal Ecology, EarlyView.
This paper estimates the rate of chronic wasting disease spread in multiple regions and compares these rates with model predictions based on deer movement data. Abstract Rare long‐distance movements can increase the spatial spread of invasive species and shifts in species ranges. For wildlife disease spread, however, seasonal migrations may only matter
Paul C. Cross, Blake Lowrey, Matthew Kauffman, Evelyn Merrill   +3 more
wiley   +1 more source