Results 101 to 110 of about 39,417 (134)

Correction for Participation Bias in Nonprobability Samples Using Multiple Reference Surveys. [PDF]

Stat Med
Landsman V, Wang L, Carrillo-Garcia I, Mitani AA, Smith PM, Graubard BI, Bui T, Carnide N.   +7 more
europepmc   +1 more source

Visual Alignment Method for Hoisting Prefabricated Segmented Beams. [PDF]

Sensors (Basel)
Xiao L, Zhao C.
europepmc   +1 more source

LASSO regression-based machine learning model for differentiating spinal tuberculosis, pyogenic spondylitis, and endplate osteochondritis: development and clinical application. [PDF]

Front Cell Infect Microbiol
Liang T, Chen W, Nie Y, Zhang Z, Lai X, Li K, Wang Y, Tang Y, Quan X, Chen B, Luo T.   +10 more
europepmc   +1 more source

A sensor-fault resilient artificial pancreas using type-3 fuzzy logic and predictive controls. [PDF]

Sci Rep
Mai VT, Alattas KA, Khani A, Mohammadzadeh A.   +3 more
europepmc   +1 more source

Dynamics of SEIR epidemic model by optimal auxiliary functions method

Chaos, Solitons and Fractals, 2021
The aim of the present work is to establish an approximate analytical solution for the nonlinear Susceptible, Exposed, Infected, Recovered (SEIR) model applied to novel coronavirus COVID-19. The mathematical model depending of five nonlinear differential equations, is studied and approximate solutions are obtained using Optimal Auxiliary Functions ...
Bogdan Marinca, Vasile Marinca
exaly   +4 more sources

Approximate Closed-Form Solutions for the Rabinovich System via the Optimal Auxiliary Functions Method

Symmetry, 2022
Based on some geometrical properties of the Rabinovich system the closed-form solutions of the equations has been established. Moreover the Rabinovich system is reduced to a nonlinear differential equation depending on an auxiliary unknown function. The approximate analytical solutions are built using the Optimal Auxiliary Functions Method (OAFM).
Remus-Daniel Ene, Nicolina Pop, Marioara Lapadat   +2 more
exaly   +2 more sources

Optimal Auxiliary Functions Method for a Pendulum Wrapping on Two Cylinders

Mathematics, 2020
In the present work, the nonlinear oscillations of a pendulum wrapping on two cylinders is studied by means of a new analytical technique, namely the Optimal Auxiliary Functions Method (OAFM). The equation of motion is derived from the Lagrange’s equation. Analytical solutions and natural frequency of the system are calculated.
Vasile Marinca, Nicolae Herisanu, Marinca Vasile   +2 more
exaly   +3 more sources