Results 51 to 60 of about 44,938 (219)
This study aimed to map the stem biomass of an even-aged eucalyptus plantation in southeastern Brazil based on canopy height profile (CHPs) statistics using wall-to-wall discrete return airborne laser scanning (ALS), and compare the results with ...
André Gracioso Peres Silva +5 more
doaj +1 more source
Divergence based Robust Estimation of the Tail Index through An Exponential Regression Model
The extreme value theory is very popular in applied sciences including Finance, economics, hydrology and many other disciplines. In univariate extreme value theory, we model the data by a suitable distribution from the general max-domain of attraction ...
Ghosh, Abhik
core +1 more source
ABSTRACT This study addresses the influence of fibre architecture on the mechanical properties of vacuum‐infused glass fibre reinforced polymer (GFRP) composites at elevated temperatures (ET). Laminates with three different fibre configurations—unidirectional (UD), bidirectional 0°/90° cross‐ply (BD), and ±45° off‐axis angle‐ply (OA) – were tested in ...
Eloísa Castilho +4 more
wiley +1 more source
Prediction for Contact Fatigue Life of Plasma Sprayed Coating Based on Weibull Distribution
Weibull distribution is one of the most common statistical methods used to deal with and analyze the fatigue life, but in the study of contact fatigue life of coating, most scholars established the Weibull distribution model without multivariate ...
FEI Xiaoyu, LI Guolu, WANG Haidou
doaj +1 more source
Abstract This research describes the engineering of chitosan nanoparticles (CS NPs) via ionic gelation to I'm double or somethingencapsulate Ajwah seed extract (ASE), repurposing a plant waste product for its documented antioxidant and anticancer potential.
Jailan E. Elhalawani +2 more
wiley +1 more source
Statistical probability distributions are commonly used by data analysts and statisticians to describe and analyze their data. It is possible in many situations that data would not fit the existing classical distributions. A new distribution is therefore
Hadeel S. Klakattawi +2 more
doaj +1 more source
New Flexible Regression Models Generated by Gamma Random Variables with Censored Data [PDF]
We propose and study a new log-gamma Weibull regression model. We obtain explicit expressions for the raw and incomplete moments, quantile and generating functions and mean deviations of the log-gamma Weibull distribution.
Cordeiro, Gauss M. +3 more
core +1 more source
Semi-Competing Risks on A Trivariate Weibull Survival Model
A setting of a trivairate survival function using semi-competing risks concept is proposed. The Stanford Heart Transplant data is reanalyzed using a trivariate Weibull distribution model with the proposed survival ...
Lee, Cheng K., Lee, Jenq-Daw
core +3 more sources
ABSTRACT We study the accuracy of a variety of parametric price duration‐based realized variance estimators constructed via various financial duration models and compare their forecasting performance with the performance of various nonparametric return‐based realized variance estimators.
Björn Schulte‐Tillmann +2 more
wiley +1 more source
Factors Affecting the Progression of Retinopathy in Type 2 Diabetes
Background and purpose: The aim of this study was to identify the factors affecting the progression of retinopathy in patients with type 2 diabetes. Materials and methods: In this historical prospective cohort study, 728 patients with type 2 diabetes ...
Ensieh Akbarpour +3 more
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