Results 121 to 130 of about 4,761,459 (294)

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

open access: yesStructural 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

Some Composite ExponentialPareto Models for Actuarial Prediction [PDF]

open access: yes
Prediction is a very important and not so easy task for an actuary. An insurance company needs predictions of the future claims in order to evaluate premiums, to assess its financial situation, probabilities of ruin, etc.
Teodorescu, Sandra, Vernic, Raluca
core  

Zipf's Law for Cities and the Double-Pareto-Lognormal Distribution [PDF]

open access: yes, 2012
This dissertation concentrates on the size distribution of cities. From an empirical perspective, it is shown that Zipf's law for cities holds for the upper tail of the distribution and that the overall distribution is the Double-Pareto-Lognormal ...
Giesen, Kristian
core  

Closed‐form solutions for dynamic punching shear assessment in flat slabs subjected to sudden column removal

open access: yesStructural Concrete, EarlyView.
Abstract Simplified closed‐form equations are commonly used in structural design to prevent punching shear failures of concrete flat slabs supported on columns in permanent and transient situations, whereas more advanced methods are generally used in verifications at accidental design situations due to the lack of suitable equivalent approaches ...
Maria Liapopoulou   +3 more
wiley   +1 more source

Effect of Glutathione S‐Transferase and Metallothionein Polymorphisms on Mercury Levels and End‐Stage Renal Disease (ESRD) in Colombian Patients

open access: yesEnvironmental Toxicology, EarlyView.
ABSTRACT Epidemiological studies have demonstrated a link between chronic kidney disease (CKD) and environmental mercury (Hg) exposure. Colombia has a well‐documented history of artisanal and small‐scale gold mining, where Hg exposure affects miners and nearby riverside and urban populations. This study aimed to evaluate the effects of polymorphisms in
Diana M. Narváez   +16 more
wiley   +1 more source

A normal relationship ? Poverty, growth, and inequality [PDF]

open access: yes
Using a large cross-country income distribution dataset spanning close to 800 country-year observations from industrial and developing countries, the authors show that the size distribution of per capita income is well approximated empirically by a ...
Lopez, Humberto, Serven, Luis
core  

Time‐resolved coherent X‐ray scattering analysis of nanorod colloids: dynamics and photon‐statistical effects in angular X‐ray cross‐correlation analysis

open access: yesJournal of Synchrotron Radiation, EarlyView.
A statistical framework combining angular X‐ray cross‐correlation analysis, principal component analysis and photon‐counting simulations is presented for evaluating the detectability of orientational fluctuations in time‐resolved coherent X‐ray scattering experiments.Understanding the dynamic fluctuations of anisotropic particles is essential for ...
Taiki Hoshino   +10 more
wiley   +1 more source

More adequate probability distributions to represent the saturated soil hydraulic conductivity

open access: yesScientia Agricola, 2002
The saturated soil hydraulic conductivity (Ksat) is one of the most relevant variables in studies of water and solute movement in the soil. Its determination in the laboratory and in the field yields high dispersion results, which could be an indication ...
Maria da Glória Bastos de Freitas Mesquita   +2 more
doaj  

Modelling NO2 emissions at Eskom’s Lethabo coal fired power station

open access: yesDiscover Environment
This study uses three relatively heavy tailed statistical distributions commonly applied in air pollution, namely, the Weibull, Lognormal and Pareto distributions, to characterise the NO2 emissions data (tons) from Lethabo coal fired power station, owned
Mpendulo Wiseman Mamba, Delson Chikobvu
doaj   +1 more source

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