Results 31 to 40 of about 1,279,657 (325)
Estimation of the Value of Reverse Blood Flow in the Artery by the Second Derivative of the Pulse Pressure Wave [PDF]
Известия Саратовского университета. Новая серия: Физика, 2020 Background and Objectives: Previously, the diastolic section of the pulse wave was most often analyzed as the result of reflection of a direct wave from the elements of peripheral vessels.
Baatyrov, Rahim Taalaibekovich +4 more
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Study on SPH Viscosity Term Formulations [PDF]
, 2018 For viscosity-dominated flows, the viscous effect plays a much more important role. Since the viscosity term in SPH-governing (Smoothed Particle Hydrodynamics) equations involves the discretization of a second-order derivative, its treatment could be ...
Ma, Q., Shao, S., Zheng, X.
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IEEE Access, 2020 Generative adversarial networks (GANs) suffer from catastrophic forgetting when learning multiple consecutive tasks. Parameter regularization methods that constrain the parameters of the new model in order to be close to the previous model through ...
Yifan Chang +5 more
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Existence, iteration procedures and directional differentiability for parabolic QVIs [PDF]
, 2019 We study parabolic quasi-variational inequalities (QVIs) of obstacle type. Under appropriate assumptions on the obstacle mapping, we prove the existence of solutions of such QVIs by two methods: one by time discretisation through elliptic QVIs and the ...
Alphonse, Amal +2 more
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Ibn Al-Haitham Journal for Pure and Applied Sciences, 2018 Simple, economic and sensitive mathematical spectrophotometric methods were developed for the estimation 4-aminoantipyrine in presence of its acidic product.
Ruba Fahmi Abbas
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High-Order Special Two-Derivative Runge–Kutta Pairs
MathematicsThis paper presents the development and analysis of novel explicit special two-derivative Runge–Kutta (STDRK) pairs for the numerical integration of ordinary differential equations (ODEs), with a focus on achieving seventh-order accuracy and embedded ...
Ibraheem Alolyan +2 more
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Journal of Algorithms & Computational Technology, 2012 This paper considers family of A(α)-stable second derivative linear multistep methods of order p = k + 3 for step number k ≥ 15 for the solution of stiff IVPs in ODEs. The methods are demonstrated to be A(α)-stable for k ≥ 13.
R. I. Okuonghae, M. N. O. Ikhile
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BMC Chemistry, 2022 Entadfi™ is a recently FDA approved pharmaceutical combination capsule of finasteride and tadalafil. It was prescribed for the treatment of urinary tract disorders caused by benign prostatic hyperplasia in men.
Ahmed H. Abdelazim, Sherif Ramzy
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Zeros of Bessel function derivatives
, 2016 We prove that for $\nu>n-1$ all zeros of the $n$th derivative of Bessel function of the first kind $J_{\nu}$ are real and simple. Moreover, we show that the positive zeros of the $n$th and $(n+1)$th derivative of Bessel function of the first kind $J_{\nu}
Baricz, Árpád +2 more
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A Second Derivative SQP Method: Global Convergence [PDF]
SIAM Journal on Optimization, 2010 Sequential quadratic programming (SQP) methods form a class of highly efficient algorithms for solving nonlinearly constrained optimization problems. Although second derivative information may often be calculated, there is little practical theory that justifies exact-Hessian SQP methods.
Nicholas I. M. Gould, Daniel P. Robinson
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