Results 1 to 10 of about 914,850 (118)

Explicit solutions to correlation matrix completion problems, with an application to risk management and insurance [PDF]

open access: yesRoyal Society Open Science, 2018
We derive explicit solutions to the problem of completing a partially specified correlation matrix. Our results apply to several block structures for the unspecified entries that arise in insurance and risk management, where an insurance company with ...
Dan I. Georgescu   +2 more
doaj   +2 more sources

The Casual Relationship Between Debt and Profitability: The Case of Italy [PDF]

open access: yesAthens Journal of Business & Economics, 2016
This paper examines the impact of debt on corporate profitability using a longitudinal sample of 7,370 Italian SMEs operating in the commerce sector during 2006-2010.
Marco Muscettola, Francesco Naccarato
doaj   +1 more source

Optimum Nitrogen Application Acclimatizes Root Morpho-Physiological Traits and Yield Potential in Rice under Subtropical Conditions

open access: yesLife, 2022
Nitrogen (N) is a highly essential macronutrient for plant root growth and grain yield (GY). To assess the relationship among N, root traits, and the yield of boro (dry season irrigated) rice, a pot experiment was performed in the Department of Agronomy,
Md. Salahuddin Kaysar   +10 more
doaj   +1 more source

Optimization and Design of a Flexible Droop Nose Leading Edge Morphing Wing Based on a Novel Black Widow Optimization (B.W.O.) Algorithm—Part II

open access: yesDesigns, 2022
This work presents an aerodynamic and structural optimization for a Droop Nose Leading Edge Morphing airfoil as a high lift device for the UAS-S45. The results were obtained using three optimization algorithms: coupled Particle Swarm Optimization-Pattern
Musavir Bashir   +5 more
doaj   +1 more source

Econometric analysis of the use of biological assets in agricultural organizations

open access: yesСтатистика и экономика, 2020
The purpose of the study. The purpose is to analysis the use of biological assets through econometric models and quantifies the relationship between economic indicators of agricultural activity.
A. O. Ovcharov, A. M. Terekhov
doaj   +1 more source

Video-Tachometer Methodology for Wind Turbine Rotor Speed Measurement

open access: yesSensors, 2020
The measurement of the rotational speed of rotating machinery is typically performed based on mechanical adherence; for example, in encoders. Nevertheless, it can be of interest in various types of applications to develop contactless vision-based ...
Francesco Natili   +3 more
doaj   +1 more source

Meta-Analysis of SNP-Environment Interaction With Overlapping Data

open access: yesFrontiers in Genetics, 2020
Meta-analysis, which combines the results of multiple studies, is an important analytical method in genome-wide association studies. In genome-wide association studies practice, studies employing meta-analysis may have overlapping data, which could yield
Qinqin Jin, Qinqin Jin, Gang Shi
doaj   +1 more source

Analysis of Container Terminal Handling System Based on Petri Net and ExtendSim

open access: yesPromet (Zagreb), 2023
The container terminal handling system plays an important role in marine transportation, and improving its efficiency has become a big challenge. Therefore, this paper proposes an analytical method that combines a Petri net with simulation tools. Firstly,
Danfeng Du, Tiantian Liu, Chun Guo
doaj   +1 more source

THE USE OF EMERGENCY SITUATIONS FORECASTING TECHNIQUE AS PART OF A SOFTWARE PLATFORM INTERFACING SYSTEMS OF MONITORING AND EMERGENCY ALERT

open access: yesСовременная наука и инновации, 2022
The article describes the logical architecture of the integration platform of heterogeneous systems and the use of emergency forecasting techniques in real time mode, which allows to improve the accuracy and reliability offorecasting results for any ...
V. V. Kopytov   +2 more
doaj   +1 more source

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