Results 1 to 10 of about 29,758 (218)

A review on Thermodynamics in Water Cycle with Emphasizing on Entropy and Maximum Entropy Production Principle [PDF]

open access: yesعلوم و مهندسی آب و فاضلاب, 2022
Hydrological cycle is directed into thermodynamic non-equilibrium state and maximum entropy production through thermodynamic processes. Therefore, it is possible to understand and describe hydrological cycle through computation of entropy production rate
Diba Ghonchepour, Abdolreza Bahremand
doaj   +1 more source

The Eco-Evo Mandala: Simplifying Bacterioplankton Complexity into Ecohealth Signatures

open access: yesEntropy, 2021
The microbiome emits informative signals of biological organization and environmental pressure that aid ecosystem monitoring and prediction. Are the many signals reducible to a habitat-specific portfolio that characterizes ecosystem health?
Elroy Galbraith, Matteo Convertino
doaj   +1 more source

Optimal Investment and Consumption for Multidimensional Spread Financial Markets with Logarithmic Utility

open access: yesStats, 2021
We consider a spread financial market defined by the multidimensional Ornstein–Uhlenbeck (OU) process. We study the optimal consumption/investment problem for logarithmic utility functions using a stochastic dynamical programming method.
Sahar Albosaily   +1 more
doaj   +1 more source

Optimizing foreign exchange reserves: Protection against external shocks in Ghana

open access: yesFrontiers in Psychology, 2022
Using Least Square Residual Minimization techniques, this paper develops an optimal reserve model, known as the OPREM model, which is essential in optimizing the costs of reserve holding.
Abdul-Rashid Abdul-Rahaman   +6 more
doaj   +1 more source

Production inventory models for deteiorative items with three levels of production and shortages [PDF]

open access: yesYugoslav Journal of Operations Research, 2017
In this paper, three level production inventory models for deteriorative items are considered under the variation in production rate. Namely, it is possible that production started at one rate, after some time, switches to another rate.
Krishnamoorthi Chickian C.   +1 more
doaj   +1 more source

Construction of the control algorithm to improve energy efficiency of a switched reluctance electric motor

open access: yesОмский научный вестник, 2023
An energy-efficient switched reluctance electric drive is considered in relation to electric rolling stock. It fully meets such requirements as good adjustment properties, high energy efficiency and operational reliability.
A. V. Kashuba, A. V. Shevkunova
doaj   +1 more source

Optimal policy for attention-modulated decisions explains human fixation behavior

open access: yeseLife, 2021
Traditional accumulation-to-bound decision-making models assume that all choice options are processed with equal attention. In real life decisions, however, humans alternate their visual fixation between individual items to efficiently gather relevant ...
Anthony I Jang   +2 more
doaj   +1 more source

Vowel Shortening in Central Kurdish: An Analysis Based on the Principles of Optimality Phonology [PDF]

open access: yesمطالعات زبان‌‌ها و گویش‌های غرب ایران, 2019
In the present descriptive-analytical study, the researchers investigate vowel shortening process in Central Kurdish based on the principles and methods of optimality phonology. Data analysis indicates that this process along with glide formation is used
Mehran Ahmadi   +2 more
doaj   +1 more source

Clarifying the Notion “Parameter”

open access: yesBiolinguistics, 2007
This article aims to reflect on linguistic architecture by re-examining language variation. Three progressively deeper forms of variation are suggested, each of which arguably contributes to this exercise in rather different ways.
Juan Uriagereka
doaj   +1 more source

Metabolism at Evolutionary Optimal States

open access: yesMetabolites, 2015
Metabolism is generally required for cellular maintenance and for the generation of offspring under conditions that support growth. The rates, yields (efficiencies), adaptation time and robustness of metabolism are therefore key determinants of cellular ...
Iraes Rabbers   +5 more
doaj   +1 more source

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