Results 11 to 20 of about 29,239,926 (346)

The Continuous Bernoulli Distribution: Mathematical Characterization, Fractile Regression, Computational Simulations, and Applications

open access: yesFractal and Fractional, 2023
The continuous Bernoulli distribution is defined on the unit interval and has a unique property related to fractiles. A fractile is a position on a probability density function where the corresponding surface is a fixed proportion.
Mustafa Ç. Korkmaz   +2 more
doaj   +1 more source

Analysis of Net Primary Productivity Variation and Quantitative Assessment of Driving Forces—A Case Study of the Yangtze River Basin

open access: yesPlants, 2023
Net primary productivity (NPP) can indirectly reflect vegetation’s capacity for CO2 fixation, but its spatiotemporal dynamics are subject to alterations to some extent due to the influences of climate change and human activities.
Chenxi Liu   +7 more
doaj   +1 more source

Prediction of strength parameters of concrete containing different additives using optimized neural network algorithm [PDF]

open access: yesNumerical Methods in Civil Engineering, 2023
In this research, a multilayer feed-forward backpropagation error neural network has been used to predict the strength parameters of a concrete sample containing different additives.
Behzad Haseli   +4 more
doaj   +1 more source

Predicting hydraulic jump characteristics in a gradually expanding stilling basin with roughness elements by Sugeno Fuzzy Logic

open access: yesJournal of Hydroinformatics, 2022
The hydraulic behavior of a hydraulic jump can be challenging to estimate in order to design gradually expanding stilling basins with roughness elements on the bed.
Nasrin Hassanpour   +3 more
doaj   +1 more source

Hybrid Time-Series Forecasting Models for Traffic Flow Prediction

open access: yesPromet (Zagreb), 2022
Traffic flow forecast is critical in today’s transportation system since it is necessary to construct a traffic plan in order to determine a travel route.
Rajalakshmi V, Ganesh Vaidyanathan S
doaj   +1 more source

A Combined Machine Learning and Residual Analysis Approach for Improved Retrieval of Shallow Bathymetry from Hyperspectral Imagery and Sparse Ground Truth Data

open access: yesRemote Sensing, 2020
Mapping shallow bathymetry by means of optical remote sensing has been a challenging task of growing interest in recent years. Particularly, many studies exploit earlier empirical models together with the latest multispectral satellite imagery (e.g ...
Evangelos Alevizos
doaj   +1 more source

The influences on Activity-Based Costing adoption as an optimal costing system design: Evidence from Saudi Arabia [PDF]

open access: yesContabilitate şi Informatică de Gestiune, 2020
Research Question: Under which conditions is the adoption of activity-based costing (ABC) beneficial to the business-unit and, hence, represents the optimal costing system design (CSD)?
Abdulrahman Aljabr
doaj   +1 more source

俯冲带板内地震竖向加速度谱阻尼修正系数模型研究

open access: yesDizhen xuebao, 2022
基于日本K-NET和KiK-net台网的4 695条俯冲带板内地震记录,采用最小二乘法对阻尼修正系数(DMF)的几何均值进行关于阻尼比和谱周期的回归拟合,分场地类别建立了考虑阻尼比和谱周期的竖向加速度谱DMF模型。为探究震源、路径和场地效应对该模型残差分布的影响,采用随机效应模型将残差分离得到各类残差及相应的残差标准差,在此基础上进行DMF模型残差分析。研究结果表明,DMF可以采用阻尼比对数值的三次多项式、周期对数值的四次多项式来模拟。由于规范设计反应谱并非针对某一特定地震 ...
Xinfeng Chen, Yanxu Jiang, Mingji Liu
doaj   +1 more source

Discriminative Residual Analysis for Image Set Classification With Posture and Age Variations [PDF]

open access: yesIEEE Transactions on Image Processing, 2019
Image set recognition has been widely applied in many practical problems like real-time video retrieval and image caption tasks. Due to its superior performance, it has grown into a significant topic in recent years.
Chuan-Xian Ren   +4 more
semanticscholar   +1 more source

A Simple Assay for Ultrasensitive Colorimetric Detection of Ag+ at Picomolar Levels Using Platinum Nanoparticles

open access: yesSensors, 2017
In this work, uniformly-dispersed platinum nanoparticles (PtNPs) were synthesized by a simple chemical reduction method, in which citric acid and sodium borohydride acted as a stabilizer and reducer, respectively.
Yi-Wei Wang   +7 more
doaj   +1 more source

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