Results 41 to 50 of about 8,395,195 (223)

Artificial Neural Network and Regression Models for Predicting Intrusion of Non-Reacting Gases into Production Pipelines

Energies, 2022
Wax deposition and gelation of waxy crude oil in production pipelines are detrimental to crude oil transportation from offshore fields. A waxy crude oil forms intra-gel voids in pipelines under cooling mode, particularly below the pour point temperature.
Girma Tadesse Chala, Berihun Mamo Negash
doaj   +1 more source

Modeling spatiotemporal patterns of microplastic pollution in the lupit river using multilinear regression

Scientific Reports
Abstract Despite increasing awareness of microplastics as contaminants, their sources and abundance factors remain poorly understood. This study found widespread microplastic pollution in the Lupit River. Microplastic concentrations were determined from surface water samples once per season.
Raab, Katharina, Wagner, Ralf, Sales, Marie Therese, Uy, Christer John, Salazar, Benedict   +4 more
openaire   +3 more sources

Some robust distributions for the structural multilinear model [PDF]

, 2004
The structural approach to inference for location parameters and future responses are considered for the multilinear model with elliptical error distribution. We show that the structural and prediction distributions under elliptical errors assumption are
Ng, V.M.
core  

Seismic Fragility of Gravity and Semi‐Gravity Retaining Walls and Its Impact on the Functionality Loss of Road Infrastructures

Earthquake Engineering &Structural Dynamics, EarlyView.
ABSTRACT Retaining walls are key geotechnical components of road infrastructure, whose seismic performance directly affects the resilience of transportation networks. Despite their importance, seismic fragility models for retaining walls available in the literature refer only to specific case studies.
Amendola C., Conti R., de Silva F.
wiley   +1 more source

Ratios determining of microenterprise profitability: an analysis based on multilinear regression models

Data and Metadata
Introduction: to determine the best multilinear regression model(s) of the Return on Assets and the Return on Equity of microenterprises in the commune of San Bernardo de Santiago de Chile; to strengthen their competitiveness in the industry, contributing to the strengthening of public policy in the sector, the source of information was the Mayor's ...
Luis Pedro Román Palma, Teodoro Reyes Fong, Walter Danilo Leiva Mardones, Robinson Dueñas Casallas   +3 more
openaire   +1 more source

Displacement Estimation of Structures With Flag‐Shaped Hysteresis Loops

Earthquake Engineering &Structural Dynamics, EarlyView.
ABSTRACT Time‐history analyses were conducted on single‐degree‐of‐freedom (SDOF) systems with flag‐shaped hysteresis loops using a far‐field ground motion suite to estimate peak displacements, Δp, and equivalent deformation cycles, Nc, associated with cumulative displacement demands.
Yudi Zhang, Gregory A. MacRae, Geoffrey W. Rodgers, Shahab Ramhormozian, Charles Clifton, Masoumeh Farshbaf   +5 more
wiley   +1 more source

Wastewater Quality Estimation through Spectrophotometry-Based Statistical Models

Sensors, 2020
Local administrations are increasingly demanding real-time continuous monitoring of pollution in the sanitation system to improve and optimize its operation, to comply with EU environmental policies and to reach European Green Deal targets.
Daniel Carreres-Prieto, Juan T. García, Fernando Cerdán-Cartagena, Juan Suardiaz-Muro   +3 more
doaj   +1 more source

QSPR Study and Distance-Based New Topological Descriptors of Some Drugs Used in the COVID-19 Treatment

Journal of Mathematics, 2023
In chemistry and medical sciences, it is essential to study the chemical, biological, clinical, and therapeutic aspects of pharmaceuticals. To save time and money, mathematical chemistry focuses on topological indices used in quantitative structure ...
Vignesh Ravi, Natarajan Chidambaram, Özge Çolakoğlu, Hanan Ahmed, Subhasri Jaganathan, Jayasri Jaganathan   +5 more
doaj   +1 more source

Climatic Drivers of the Area Burned by Winter Wildfires in Northern Italy

International Journal of Climatology, EarlyView.
This study investigates winter wildfires occurring between November and April in northern Italy over the period 2008–2022. By integrating high‐resolution burned‐area data with gridded climatic indices derived from 150 weather stations, it identifies spatial and temporal wildfire patterns, highlights the most fire‐prone mountain areas through pixel ...
Alice Baronetti, Paolo Fiorucci, Antonello Provenzale   +2 more
wiley   +1 more source

Development of Building Thermal Load and Discomfort Degree Hour Prediction Models Using Data Mining Approaches

Energies, 2018
Thermal load and indoor comfort level are two important building performance indicators, rapid predictions of which can help significantly reduce the computation time during design optimization. In this paper, a three-step approach is used to develop and
Yaolin Lin, Shiquan Zhou, Wei Yang, Long Shi, Chun-Qing Li   +4 more
doaj   +1 more source