Results 81 to 90 of about 8,097,207 (319)

The mathematics of functional differentiation under conservation constraint

open access: yes, 2006
The mathematics of K-conserving functional differentiation, with K being the integral of some invertible function of the functional variable, is clarified.
N. Clarke, T. Gál, T. Gál, Tamás Gál
core   +1 more source

Current Tracking Adaptive Control of Brushless DC Motors

open access: yesInternational Journal of Adaptive Control and Signal Processing, EarlyView.
In this paper, the current tracking for Brushless Direct Current motors is approached considering uncertainty in the parameters of the motor's model. An adaptive control scheme to compensate electrical parameters uncertainty is proposed without requiring any knowledge of the mechanical parameters.
Fernanda Ramos‐García   +3 more
wiley   +1 more source

Kemampuan Penalaran Matematika melalui Model Pembelajaran Methaporical Thinking Ditinjau dari Disposisi Matematis

open access: yesJurnal Elemen, 2020
This research aims to know the difference in mathematical reasoning ability learners acquire learning Methaporical Thinking (MT) and Problem Based Learning (PBL) in terms of the disposition of Mathematics (high and low).
Indah Lestari, Yuan Andinny
doaj  

Capitalizing On Infinitesimal Calculus In Political Marketing [PDF]

open access: yes, 2011
The calculus, known to be a branch of mathematics dealing with differentiation and integration of variable quantities, is used to solve many mathematical problems.
Worlu, Rowland E.K.
core  

An Adaptive Human Pilot Model With Reaction Time Delay for Enhanced Adaptive Control in Piloted Systems

open access: yesInternational Journal of Adaptive Control and Signal Processing, EarlyView.
This work introduces an adaptive human pilot model that captures pilot time‐delay effects in adaptive control systems. The model enables the prediction of pilot–controller interactions, facilitating safer integration and improved design of adaptive controllers for piloted applications.
Abdullah Habboush, Yildiray Yildiz
wiley   +1 more source

A route to understanding symbols in algebra: From real-life situations to symbolic language [PDF]

open access: yesNastava i Vaspitanje
In this paper, the authors present a learning framework for introducing letters as symbols for the unknown and variable in mathematics, a framework that is based on real-life situations, their modeling and translation into algebraic language.
Milinković Nenad   +2 more
doaj   +1 more source

Factors affecting the Mathematics achievement of Turkish students in PISA 2012

open access: yes, 2015
This study aims to analyze the effect of variables determining mathematics interest, mathematics self- concept, mathematics anxiety, teacher-student relation, classroom management and sense of belonging on the Mathematics achievement of Turkish students ...
Sengul Uysal
semanticscholar   +1 more source

Money and Goldstone modes

open access: yes, 2000
Why is ``worthless'' fiat money generally accepted as payment for goods and services? In equilibrium theory, the value of money is generally not determined: the number of equations is one less than the number of unknowns, so only relative prices are ...
Bak, Per   +2 more
core   +2 more sources

A Robust Adaptive One‐Sample‐Ahead Preview Super‐Twisting Sliding Mode Controller

open access: yesInternational Journal of Adaptive Control and Signal Processing, EarlyView.
Block Diagram of the Robust Adaptive One‐Sample‐Ahead Preview Super‐Twisting Sliding Mode Controller. ABSTRACT This article introduces a discrete‐time robust adaptive one‐sample‐ahead preview super‐twisting sliding mode controller. A stability analysis of the controller by Lyapunov criteria is developed to demonstrate its robustness in handling both ...
Guilherme Vieira Hollweg   +5 more
wiley   +1 more source

Estimating the BenefiÂ…t of High School for College-Bound Students [PDF]

open access: yes
Studies based on instrumental variable techniques suggest that the value of a high school education is large for potential dropouts, yet we know much less about the size of the benefiÂ…t for students who will go on to post-secondary education.
Morin, Louis-Philippe
core  

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