Results 91 to 100 of about 359,696 (180)

A Novel Polynomial Approach for Particle Image Velocimetry (PIV) Image Reconstruction

Fluids
Particle Image Velocimetry (PIV) often utilizes a cross-correlation method to determine how far particles have moved between two captured images. The most common methods for vector estimation use computationally exhaustive cross-correlation functions ...
Briana M. Steven, Paul D. Docherty
doaj   +1 more source

Ozone Monitoring Using Support Vector Machine and K-Nearest Neighbors Methods [PDF]

Journal of Electrical and Electronics Engineering, 2017
Due to health impacts caused by the pollutant gases, monitoring and controlling air quality is an important field of interest. This paper deals with ozone monitoring in four stations measuring air quality located in many Tunisian cities using numerous ...
FALEH Rabeb, BEDOUI Souhir, KACHOURI Abdennaceur   +2 more
doaj  

Limit cycles bifurcating from the periodic orbits of the weight-homogeneous polynomial centers of weight-degree 3

Electronic Journal of Differential Equations, 2018
In this article we obtain two explicit polynomials, whose simple positive real roots provide the limit cycles which bifurcate from the periodic orbits of a family of polynomial differential centers of order 5, when this family is perturbed inside the ...
Jaume LLibre, Bruno D. Lopes, Jaime R. de Moraes   +2 more
doaj  

Onion (Allium cepa) Profit Maximization via Ensemble Learning-Based Framework for Efficient Nitrogen Fertilizer Use

Agronomy
Onion (Allium cepa) is a major field vegetable in South Korea and has been produced for a long time along with cabbage, radish, garlic, and dried peppers.
Youngjin Kim, Sumin Kim, Sojung Kim
doaj   +1 more source

Generic reversible complex polynomial vector fields

The paper studies the generic complex 1-dimensional polynomial vector fields of the form $iP(z)\frac{\partial}{\partial z}$, where $P$ is a polynomial with real coefficients, under topological orbital equivalence preserving the separatrices of the pole at infinity. The number of generic strata is determined, and a complete parametrization of the strata
openaire   +2 more sources

Geometric properties of almost pure metric plastic pseudo-Riemannian manifolds

Heliyon
This paper investigates the geometric and structural properties of almost plastic pseudo-Riemannian manifolds, with a specific focus on three-dimensional cases.
Cagri Karaman, Aydin Gezer, Mohammad Nazrul Islam Khan, Sedanur Ucan   +3 more
doaj   +1 more source

Limit cycles bifurcating from the period annulus of a uniform isochronous center in a quartic polynomial differential system

Electronic Journal of Differential Equations, 2015
We study the number of limit cycles that bifurcate from the periodic solutions surrounding a uniform isochronous center located at the origin of the quartic polynomial differential system $$ \dot{x}=-y+xy(x^2+y^2),\quad \dot{y}=x+y^2(x^2+y^2 ...
Jackson Itikawa, Jaume Llibre
doaj  

On the Optimal File Size of Capacity-Achieving Byzantine-Resistant Private Information Retrieval Schemes. [PDF]

Entropy (Basel)
Kruglik S, Kiah HM, Dau SH, Wang H.
europepmc   +1 more source

Direct Products for the Hamiltonian Density Property. [PDF]

J Geom Anal
Andrist RB, Huang G.
europepmc   +1 more source

Analysis of polarization aberrations of the off-axis pupil freeform optical system. [PDF]

iScience
Gong C, Zhang Y, Liu W, Wang J, Fu Q, Shi H.   +5 more
europepmc   +1 more source