Families of third, fourth and fifth order extended Nystrom methods for \(y'''=f( x,y)\) by P. A. Sarma

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Bounded Solutions of the Second Order Differential Equation x ?+f(x) x ?+g(x)=u(t) by Baghdad Science Journal

“…In this paper we prove the boundedness of the solutions and their derivatives of the second order ordinary differential equation x ?+f(x) x ?+g(x)=u(t), under certain conditions on f,g and u. …”
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Sobre la oscilabilidad de las soluciones de la ecuación x′′ + f(x, x′, t) = 0 by Santiago Vera, Sandy Sánchez, Antonio I. Ruiz

“…En este trabajo se determinan condiciones necesarias o suficientes para que las soluciones de la ecuación de segundo orden no lineal x′′+ f(x, x′, t) = 0 sean oscilantes. Se analiza el caso particular f(x, x′, t) = a(t)f(x)h(x′), se comparan los resultados obtenidos en uno y otro caso y se dan ejemplos que patentizan estos resultados.…”
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Combining Relaxation With NCL_X for Enhanced Optimization of Asynchronous Null Convention Logic Circuits by Danylo Khodosevych, Alexander C. Bodoh, Ashiq A. Sakib, Scott C. Smith

“…This paper combines aspects of relaxation optimization with utilizing the NCL_X architecture for select portions of the circuit, resulting in an integrated optimization method for NCL circuits that achieves an average speedup of 6.8% to 12.5%, using on average 24.6% fewer to 3.7% more transistors, compared to existing NCL synthesis and optimization methods.…”
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Explicit integrator of Runge-Kutta type for direct solution of u(4) = f(x, u, u', u'') by Ghawadri, Nizam Ghannam Fayez, Senu, Norazak, Alshareeda, Firas Adel Fawzi, Ismail, Fudziah, Ibrahim, Zarina Bibi

“…The primary contribution of this work is to develop direct processes of explicit Runge-Kutta type (RKT) as solutions for any fourth-order ordinary differential equation (ODEs) of the structure u(4)=f(x,u,u′,u′′) and denoted as RKTF method. We presented the associated B-series and quad-colored tree theory with the aim of deriving the prerequisites of the said order. …”
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Explicit Integrator of Runge-Kutta Type for Direct Solution of u(4) = f (x, u, u', u'') by Ghawadri, Nizam, Senu, Norazak, Alshareeda, Firas Adel Fawzi, Ismail, Fudziah, Ibrahim, Zarina Bibi

“…The primary contribution of this work is to develop direct processes of explicit Runge-Kutta type (RKT) as solutions for any fourth-order ordinary differential equation (ODEs) of the structure u(4)=f(x,u,u′,u′′) and denoted as RKTF method. We presented the associated B-series and quad-colored tree theory with the aim of deriving the prerequisites of the said order. …”

A evolução do projeto F-X em F-X2: a disputa de empresas transnacionais em procedimento licitatório para a venda de caças supersônicos com irrestrita transferência de tecnologia para o Brasil by Roberto Vinícius Hartmann, Luís Alexandre Carta Winter

“…Palavras-chave: Políticas públicas. Projeto F-X. Projeto F-X2. Transferência de tecnologia. …”
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Mapping Freezing and Thawing Surface State Periods With the CYGNSS Based F/T Seasonal Threshold Algorithm by Hugo Carreno-Luengo, Christopher S. Ruf

“…Freeze/Thaw (F/T) surface state detection and imaging has been demonstrated as a capability of NASA's Cyclone Global Navigation Satellite System mission. …”
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Coexistence of static magnetism and superconductivity in SmFeAsO(1-x)F(x) as revealed by muon spin rotation. by Drew, A, Niedermayer, C, Baker, P, Pratt, F, Blundell, S, Lancaster, T, Liu, R, Wu, G, Chen, X, Watanabe, I, Malik, V, Dubroka, A, Rössle, M, Kim, K, Baines, C, Bernhard, C

“…The recent observation of superconductivity with critical temperatures (Tc) up to 55 K in the pnictide RFeAsO(1-x)F(x), where R is a lanthanide, marks the first discovery of a non-copper-oxide-based layered high-Tc superconductor. …”

Microstructure of laser-ablated La(2)CnO(4)F(x) thin films on SrTiO3 by Kong, G, Aindow, M, Jones, M, Gameson, I, Lees, S, Gibbons, K, Abell, J, Edwards, P

Structural and Affinity Determinants in the Interaction between Alcohol Acyltransferase from F. x ananassa and Several Alcohol Substrates: A Computational Study. by Carlos Navarro-Retamal, Carlos Gaete-Eastman, Raúl Herrera, Julio Caballero, Jans H Alzate-Morales

“…With the aim to understand the molecular and energetic aspects of volatiles compound production from F. x ananassa, we first studied the binding modes of a series of alcohols, and also different acyl-CoA substrates, in a molecular model of alcohol acyltransferase from Fragaria x ananassa (SAAT) using molecular docking. …”
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What Affects the Efficiency of Science and Technology Output and Transformation in Universities?–Evidence From Chinese Universities by Jinzhong Guo, Jianan Liu, Xueqin Liao, Xiaoling Liu

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Embedded explicit Runge–Kutta type methods for directly solving special third order differential equations y‴=f(x,y) by Senu, Norazak, Mechee, Mohammed Sahib, Ismail, Fudziah, Siri, Zailan

“…In this paper three pairs of embedded Runge–Kutta type methods for directly solving special third order ordinary differential equations (ODEs) of the form y‴=f(x,y)y‴=f(x,y) denoted as RKD methods are presented. …”
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Exponentially fitted and trigonometrically fitted explicit modified Runge-Kutta type methods for solving y’’’ (x)=f (x,y,y’) by Ghawadri, Nizam Ghannam Fayez, Senu, Norazak, Ismail, Fudziah, Ibrahim, Zarina Bibi

“…Exponentially fitted and trigonometrically fitted explicit modified Runge-Kutta type (MRKT) methods for solving y’’’ (x)=f (x,y,y’) are derived in this paper. These methods are constructed which exactly integrate initial value problems whose solutions are linear combinations of the set functions ewx and e-wx for exponentially fitted sin(wx) and cos (wx) for trigonometrically fitted with w ᗴ r being the principal frequency of the problem and the frequency will be used to raise the accuracy of the methods. …”
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Exponentially-fitted and trigonometrically-fitted two derivative Runge-Kutta-Nystrom methods for solving y''(x) = f(x, y, y' ) by Salama, Tahani Mohamed, Senu, Norazak, Ibrahim, Zarina Bibi, Nik Long, Nik Mohd Asri

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On two derivative Runge-Kutta type methods for solving u''' = f (x, u(x)) with application to thin film flow problem by Lee, Khai Chien, Senu, Norazak, Ahmadian, Ali, Ibrahim, Siti Nur Iqmal

“…A class of explicit Runge–Kutta type methods with the involvement of fourth derivative, denoted as two-derivative Runge–Kutta type (TDRKT) methods, are proposed and investigated for solving a special class of third-order ordinary differential equations in the form u′′′(x)=f(x,u(x)) . In this paper, two stages with algebraic order four and three stages with algebraic order five are presented. …”
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Análisis de los niveles de comprensión de los objetos f’(a) y f’(x) de profesores de matemáticas. by Edelmira Badillo, Carmen Azcárate, Vicenç Font

“… En este artículo describimos los niveles de comprensión de la relación entre f’(a) y f’(x) de cinco profesores de matemáticas que desarrollaban la asignatura de matemáticas con alumnos de 16-18 años en diferentes centros educativos de Colombia. …”
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Análisis de los niveles de comprensión de los objetos f’(a) y f’(x) de profesores de matemáticas. by Edelmira Badillo, Carmen Azcárate, Vicenç Font

“…<p>En este artículo describimos los niveles de comprensión de la relación entre f’(a) y f’(x) de cinco profesores de matemáticas que desarrollaban la asignatura de matemáticas con alumnos de 16-18 años en diferentes centros educativos de Colombia. …”
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Dip Filter and Random Noise Suppression for GPR B-Scan Data Based on a Hybrid Method in <i>f - x</i> Domain by Xuebing Zhang, Xuan Feng, Zhijia Zhang, Zhiliang Kang, Yuan Chai, Qin You, Liang Ding

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SiCoDeF&#x00B2; Net: Siamese Convolution Deconvolution Feature Fusion Network for One-Shot Classification by Swalpa Kumar Roy, Purbayan Kar, Mercedes E. Paoletti, Juan M. Haut, Rafael Pastor-Vargas, Antonio Robles-Gomez

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