Results 71 to 80 of about 6,758 (251)

A Parametric Method of Finding Accessory Parameters for the Generalized Schwarz--Christoffel Integrals [PDF]

Учёные записки Казанского университета: Серия Физико-математические науки, 2016
An approximate method of finding accessory parameters for the generalized Schwarz--Christoffel integrals has been suggested. The integrals provide conformal mappings of a half-plane onto the polygonal Riemann surfaces with inner branch points. The method
N.N. Nakipov, S.R. Nasyrov
doaj  

The Riemann Problem for the Blood Flow Model with Body Force Term

Advances in Mathematical Physics
In this paper, we study the Riemann problem for the blood flow model with body force term. The Riemann solutions involve the rarefaction waves, the shock waves, and the collapsed state.
Wancheng Sheng, Shufang Xu
doaj   +1 more source

The Bernstein Operational Matrices for Solving the Fractional Quadratic Riccati Differential Equations with the Riemann-Liouville Derivative

Abstract and Applied Analysis, 2013
We obtain the approximate analytical solution for the fractional quadratic Riccati differential equation with the Riemann-Liouville derivative by using the Bernstein polynomials (BPs) operational matrices.
Dumitru Baleanu, Mohsen Alipour, Hossein Jafari   +2 more
doaj   +1 more source

Sliding Mode Control in Aerospace Applications: A Survey

International Journal of Robust and Nonlinear Control, EarlyView.
ABSTRACT Sliding mode control (SMC) enjoys robustness to matched and unmatched (in the case of minimum phase input‐output dynamics) bounded perturbations, and finite time convergence. Second‐order and higher‐order sliding mode control systems (2‐SMC/HOSMC) retain all the advantages of sliding mode control, but in addition can be applied to systems of ...
Yuri Shtessel, Christopher Edwards
wiley   +1 more source

Lie symmetry analysis of (2+1)-dimensional time fractional Kadomtsev-Petviashvili equation [PDF]

Open Communications in Nonlinear Mathematical Physics
In this paper, Lie symmetry analysis method is applied to the (2+1)-dimensional time fractional Kadomtsev-Petviashvili (KP) equation with the mixed derivative of Riemann-Liouville time-fractional derivative and integer-order $x$-derivative.
Jicheng Yu, Yuqiang Feng
doaj   +1 more source

Nasal Epithelial Immune Signatures Are Associated With Age‐Dependent Asthma Trajectories in Early Life

Allergy, EarlyView.
Nasal epithelial transcriptomics identified three cytokine‐associated epithelial immune programs linked to childhood asthma phenotypes. Age‐associated epithelial polarization shifted from IFN/type‐17‐associated toward type‐2‐associated programs after 3 years of age.
Constanze A. Jakwerth, Sabina Illi, Helen Charles, Madlen Oelsner, Amr A. Gabr, Ulrich M. Zissler, Anna Erb, Martin Feuerherd, Felix Drost, Maren Büttner, Benjamin Schubert, Nicole Maison, Jimmy Omony, Markus Weckmann, Ruth Grychtol, Anna‐Maria Dittrich, Svenja Foth, Chrysanthi Skevaki, Tobias Trojan, Silke van Koningsbruggen‐Rietschel, Gesine Hansen, Thomas Bahmer, Klaus F. Rabe, Folke Brinkmann, Matthias Volkmar Kopp, Ulrike Protzer, Adam M. Chaker, Bianca Schaub, Erika von Mutius, Carsten B. Schmidt‐Weber, the ALLIANCE Study Group as part of the German Center for Lung Research (DZL), Mira Bürk, Sybille Contento, Markus Ege, Kristina Gottschau, Silvia Gschwendtner, Alexander Hose, Lena Lagally, Michael Schloter, Lena Ullemeyer, Esther Zeitlmann, Mustafa Abdo, Heike Biller, Karoline I. Gaede, Clara Haug, Nikolas Jacobs, Anne‐Marie Kirsten, Inke R. König, Lea Kronziel, Gyde Nissen, Frauke Pedersen, Loana Pennerd, Isabell Ricklefs, Vera Veith, Henrik Watz, Marie Bickes, Mifflin‐Rae Calvero, David S. DeLuca, Svenja Gaedcke, Anika Habener, Christine Happle, Adan Chari Jirmo, Bin Liu, Lennart Riemann, Nicolaus Schwerk, Inga Jerrentrup, Harald Renz, Stefanie Weber, Miguel A. Alejandre Alcazar, Samira Blau, Ernst Rietschel, Jan‐Christoph Thomassen   +71 more
wiley   +1 more source

Sleep hygiene and sleep control mediate the relationship between cognitive fusion and insomnia severity

British Journal of Clinical Psychology, EarlyView.
Abstract Objectives Insomnia is associated with mental ill health, worry and rumination—the two latter contribute to pre‐sleep cognitive arousal. These variables also associate with psychological inflexibility, including cognitive fusion (CF), a literal attachment to unhelpful thoughts, patterns and rules.
Amanda L. Richdale, Francesco R. De Maria, Eric M. J. Morris   +2 more
wiley   +1 more source

Refining effect size measures and classification for differential item functioning: Toward unified guidelines across methods

British Journal of Mathematical and Statistical Psychology, EarlyView.
Abstract Differential Item Functioning (DIF) analysis is used to identify potentially biased items in multi‐item measurements. In addition to testing the statistical significance, it is essential to evaluate the practical significance of DIF through effect size measures.
Michaela Cichrová, Adéla Hladká, Patrícia Martinková   +2 more
wiley   +1 more source

Predicting Non-Linear Flow Phenomena through Different Characteristics-Based Schemes

Aerospace, 2018
The present work investigates the bifurcation properties of the Navier–Stokes equations using characteristics-based schemes and Riemann solvers to test their suitability to predict non-linear flow phenomena encountered in aerospace applications.
Tom-Robin Teschner, László Könözsy, Karl W. Jenkins   +2 more
doaj   +1 more source

Real‐Time Conformal Maps and Parameterizations

Computer Graphics Forum, EarlyView.
Abstract We present a simple algorithm to conformally map between two simple and bounded planar domains based on the concept of harmonic measure, which is a conformal invariant. With suitable preprocessing, the algorithm is fast enough to compute all possible conformal maps (having three real degrees of freedom) between the two domains in real time in
Q. Chang, C. Gotsman, K. Hormann
wiley   +1 more source