Results 101 to 110 of about 50,354 (244)

Abu ja'far muhammad ibn musa al-khwarizmi: contribuições da álgebra para o ensino [PDF]

, 2019
Recognizing that medieval Islamic mathematics has produced several names of firstrate scholars, this research focuses on the well-known work entitled Al-Kitāb almukhtaṣar fī ḥisāb al-jabr wal-muqābala (Book of Restoration and Balancing) like alKhwarizmi ...
Araújo, Marlene Gorete de
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Research on Heat Transfer Enhancement of Spiral Grooved Tube Heat Exchangers Based on CFD and Artificial Intelligence

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Driven by the energy crisis and carbon neutrality goals, high‐efficiency heat exchange equipment has become a core demand in the industrial sector. The spiral grooved double‐pipe heat exchanger exhibits significant heat transfer enhancement advantages, yet it requires balancing heat transfer efficiency and pressure loss.
Yueyun Yang, Wei Li, Xiuzhi Xi, Neng Gao
wiley   +1 more source

Álgebra [PDF]

, 2019
Se presentan los contenidos básicos y métodos del álgebra con énfasis en su aplicación en la resolución de problemas del campo de la administración, economía, biología y ciencias sociales.
Hecklein, Marcela, Vrancken, Silvia, Engler, Adriana, Müller, Daniela   +3 more
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Bioconvective Unsteady Casson Hybrid Nanofluid Flow on a Variable Darcy Regime Between Two Rotating Disks With Variable Heat Source

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT This study carries significant consequences in various engineering applications, such as cooling rotating disk surfaces, improving chemical reactor performance, and designing filtration systems. Considering these main applications in view, the aim of this study is to investigate time‐dependent Casson hybrid nanofluid flow on a permeable ...
Ebrahem A. Algehyne, Abdul Bariq, Mounirah Areshi, Fahad Maqbul Alamrani, Zehba Raizah, Izharul Haq, Anwar Saeed   +6 more
wiley   +1 more source

Performance improvement of discrete‐time linear‐quadratic regulators applied to uncertain linear systems using the Tikhonov regularization method

Asian Journal of Control, EarlyView.
Abstract The linear‐quadratic regulator (LQR) problem of optimal control of an uncertain discrete‐time linear system (DTLS) is revisited in this paper from the perspective of Tikhonov regularization. We show that an optimally chosen regularization parameter reduces, compared to the classical LQR, the values of a scalar error function, as well as the ...
Fernando Pazos, Amit Bhaya
wiley   +1 more source

Estructura diferencial no conmutativa sobre un álgebra envolvente universal [PDF]

, 2001
Presentamos dos métodos para construir estructuras diferenciales no conmutativas sobre un álgebra envolvente universal de un álgebra de Lie G. Un procedimiento consiste en cuantizar una estructura diferencial, previamente definida, sobre el álgebra ...
Guerrero, Berenice, Guerrero G., A. Berenice   +1 more
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Recursos utilizados por el profesor de telebachillerato para enseñar álgebra: productos notables

RECIE Revista Electrónica Científica de Investigación Educativa, 2018
En este documento planteamos como objeto describir cómo el profesor de Telebachillerato utiliza los recursos para enseñar productos notables. Retomamos la discusión sobre el concepto de recurso y su relación con la práctica docente en matemáticas. En el
David Alfonso Páez, Teresa de Jesús Cañedo Ortiz, Daniel Eudave Muñoz   +2 more
doaj  

On structural controllability in complex networks with periodic switching topologies

Asian Journal of Control, EarlyView.
Abstract This paper investigates the structural controllability of complex networks with periodic switching topologies. First, several graph transformations that preserve structural controllability are demonstrated. Based on the n‐walk theory, a criterion is derived that determines structural controllability by analyzing only the joint graph within a ...
Jingrui Hou, Zhaohui Liu, Xinghuo Yu, Mahdi Jalili   +3 more
wiley   +1 more source

Ejercicios de aritmética y álgebra : curso de ingreso [PDF]

, 1965
Fil:Duacastella, Luján H.. Universidad de Buenos Aires. Facultad de Ingeniería. Buenos Aires, ArgentinaFil:Maquieira, Juan Carlos. Universidad de Buenos Aires. Facultad de Ingeniería. Buenos Aires, ArgentinaFil:Inglese, Victorio L.. Universidad de Buenos
Ottonello, Eduardo J.F., Maquieira, Juan Carlos, Inglese, Victorio L., Duacastella, Luján H.   +3 more
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Young people's occupational aspirations beyond the aspiration discourse: A sociocultural perspective

British Educational Research Journal, EarlyView.
Abstract Young people's aspirations have been the focus of many educational, sociological and psychological studies. This paper argues, firstly, that the concept of aspirations holds greater generative potential than suggested by the policy‐oriented ‘aspiration discourse’.
Jelena Popov
wiley   +1 more source