Results 1 to 10 of about 3,694,578 (302)

Analysis of the Development Mechanisms of a Polar Low over the Norwegian Sea Simulated with the Canadian Regional Climate Model

open access: yesAtmosphere, 2023
Polar lows (PLs) are maritime mesoscale cyclones associated with severe weather. They develop during marine cold air outbreaks near coastlines and the sea ice edge.
Marta Moreno-Ibáñez   +2 more
doaj   +1 more source

Shipyard facility layout optimization through the implementation of a sequential structure of algorithms

open access: yesHeliyon, 2023
The objective of this work is to optimize a shipyard facility layout through required departments' closeness conditions to minimize total material handling cost.
W.Azzolini Junior   +4 more
doaj   +1 more source

Recent advances in polar low research: current knowledge, challenges and future perspectives

open access: yesTellus: Series A, Dynamic Meteorology and Oceanography, 2021
Polar lows (PLs) are high-latitude intense maritime mesoscale weather systems that develop over open water near the sea ice margin or near snow-covered continents during cold air outbreaks.
Marta Moreno-Ibáñez   +2 more
doaj   +1 more source

Time-Efficient Simulation of Free-Space Optical Communication Systems Under Atmospheric Turbulence, Pointing Error, and Angle-of-Arrival Fluctuations

open access: yesIEEE Photonics Journal, 2023
Computer simulation is a powerful and convenient tool for the design and performance evaluation of free-space optical (FSO) communication systems. In this article, we present two simulation frameworks that incorporate not only the effects of atmospheric ...
Mat T. Nguyen, Vuong Mai, Hoon Kim
doaj   +1 more source

On Flow Characteristics and Interpretative Methods of Oil-Water Two-Phase Flow in Slightly Negative Angle Deviated Pipes

open access: yesCejing jishu, 2023
The difference of flow characteristics makes the conventional production logging interpretation model unable to accurately predict the true flowrate of each phase in horizontal wells.
QIN Hao   +6 more
doaj   +1 more source

The Lasso and the Factor Zoo-Predicting Expected Returns in the Cross-Section

open access: yesForecasting, 2022
We investigate whether Lasso-type linear methods are able to improve the predictive accuracy of OLS in selecting relevant firm characteristics for forecasting the future cross-section of stock returns.
Marcial Messmer, Francesco Audrino
doaj   +1 more source

Bias in nutrition-health associations is not eliminated by excluding extreme reporters in empirical or simulation studies

open access: yeseLife, 2023
Self-reported nutrition intake (NI) data are prone to reporting bias that may induce bias in estimands in nutrition studies; however, they are used anyway due to high feasibility. We examined whether applying Goldberg cutoffs to remove ‘implausible’ self-
Nao Yamamoto   +3 more
doaj   +1 more source

A Disturbed Voussoir Beam Structure Mechanical Model and Its Application in Feasibility Determination of Upward Mining

open access: yesEnergies, 2023
China is endowed with a large quantity of residual coal resources that require upward mining. The stability of interburden strata structures and accurate determination are crucial for safe mining. Therefore, we established a mechanical model of disturbed
Yujiang Zhang   +6 more
doaj   +1 more source

Theoretical Analysis of the Motorcycle Front Brake Heating ‎Process during High Initial Speed Emergency Braking [PDF]

open access: yesJournal of Applied and Computational Mechanics, 2020
Motorcycles are a common mode of transport. They are used both for a conventional purpose - as a way to cover the distance from A to B, but more and more often they are a way of recreation.
Andrzej Borawski   +6 more
doaj   +1 more source

Evacuation Problem in Mosque Buildings, The Case of Konya Hacıveyiszade Mosque

open access: yesJournal of Architectural Sciences and Applications, 2022
Evacuation of assembly buildings in emergencies such as earthquake, fire and terror is very important to prevent major casualties. To evacuate the building smoothly, it’s necessary to realize the right architectural design.
Hatice Sena Azkur, Murat Oral
doaj   +1 more source

Home - About - Disclaimer - Privacy