Results 61 to 70 of about 803,402 (308)

Existence of Positive Solutions for m-Point Boundary Value Problem for Nonlinear Fractional Differential Equation

Abstract and Applied Analysis, 2011
We investigate an m-point boundary value problem for nonlinear fractional differential equations. The associated Green function for the boundary value problem is given at first, and some useful properties of the Green function are obtained. By using the
Moustafa El-Shahed, Wafa M. Shammakh
doaj   +1 more source

Exponentially growing bubbles around early super massive black holes [PDF]

, 2017
We addressed the so far unexplored issue of outflows induced by exponentially growing power sources, focusing on early supermassive black holes (BHs).
A. D’Ercole, Agarwal, Angulo, Begelman, Borisova, Brusa, C. Norman, Calura, Cicone, Cicone, Cioffi, Ciotti, Correa, Costa, Cowie, Cowie, Crichton, De Rosa, Dekel, Devecchi, Dubois, Eftekharzadeh, F. Calura, Fan, Fanidakis, Faucher-Giguère, Ferrara, Ferrara, Ferrara, Feruglio, Feruglio, Gaspari, Gaspari, Germain, Harrison, Kakiichi, King, King, Koo, Krause, Krug, Lapi, Lightman, Lin, Mac Low, Madau, Madau, Maiolino, Marcolini, Marconi, Michaut, Morganti, Murray, Nardini, Navarro, Nayakshin, Novak, Ostriker, Overzier, Pezzulli, Pittard, Planck Collaboration XIII., R. Gilli, Ruan, Sazonov, Scannapieco, Shen, Shen, Soltan, Steigman, Tasker, Teyssier, Tombesi, Tombesi, Tombesi, Trakhtenbrot, Valiante, Venemans, Vishniac, Volonteri, Volonteri, Wang, Weaver, Willott, Yu, Zakamska, Zubovas   +86 more
core   +2 more sources

DETERMINATION OF THE WILLIAMS SERIES EXPANSION’S COEFFICIENTS USING DIGITAL PHOTOELASTICITY METHOD AND FINITE ELEMENT METHOD

Vestnik of Samara University. Natural Science Series, 2019
In the present work, photoelastic and finite element methods have been employed to study the near crack tip fields in isotropic linear elastic cracked bodies under mixed mode loading. The investigated fracture results have been obtained for a series of cracked specimens by testing plates with two parallel cracks, two inclined parallel cracks, three-point
L. V. Stepanova, O. N. Belova, V. A. Turkova   +2 more
openaire   +2 more sources

Characterization of Defect Distribution in an Additively Manufactured AlSi10Mg as a Function of Processing Parameters and Correlations with Extreme Value Statistics

Advanced Engineering Materials, EarlyView.
Predicting extreme defects in additive manufacturing remains a key challenge limiting its structural reliability. This study proposes a statistical framework that integrates Extreme Value Theory with advanced process indicators to explore defect–process relationships and improve the estimation of critical defect sizes. The approach provides a basis for
Muhammad Muteeb Butt, Varma Kvvssn, Hossein Laieghi, Zia Uddin, Peyman Ansari, E. Kıvanç Sadak, Can Barış Toprak, Hüseyin Kızıl, Enrico Salvati   +8 more
wiley   +1 more source

Experimental and numerical investigations of full-field strain measurement and fracture parameter of lead-free solder using DIC technique

Vietnam Journal of Mechanics, 2020
In this study, rupture of notched SENT specimens fabricated from a novel lead-free solder alloy is investigated. The lead-free solder alloy, focused on in this study, is particularly used as interconnect material in power modules of electric vehicles ...
Tao Quang Bang, Nguyen Van Thien An, Lahouari Benabou, Nguyen Xuan Hung   +3 more
doaj   +1 more source

Modeling the interaction of thermonuclear supernova remnants with circumstellar structures: The case of Tycho's supernova remnant

, 2013
The well-established Type Ia remnant of Tycho's supernova (SN 1572) reveals discrepant ambient medium density estimates based on either the measured dynamics or on the X-ray emission properties. This discrepancy can potentially be solved by assuming that
Chiotellis, A., Kaastra, J. S., Kosenko, D., Schure, K. M., Vink, J.   +4 more
core   +2 more sources

p-adic path set fractals and arithmetic [PDF]

, 2013
This paper considers a class C(Z_p) of closed sets of the p-adic integers obtained by graph-directed constructions analogous to those of Mauldin and Williams over the real numbers.
Abram, William, Lagarias, Jeffrey C.
core   +1 more source

Additive Gaussian Process Regression for Predictive Design of High‐Performance, Printable Silicones

Advanced Engineering Materials, EarlyView.
A chemistry‐aware design framework for tuning printable polydimethylsiloxane (PDMS) for vat photopolymerization (VPP) is developed using additive Gaussian process (GP) modeling. Polymer network mechanics informs variable groupings, feasible formulation constraints, and interaction variables.
Roxana Carbonell, Martha Leach, Hongtao Song, Carolyn Seepersad   +3 more
wiley   +1 more source

Estimation of the crack propagation direction in a mixed-mode geometry via multi-parameter fracture criteria

Fracture and Structural Integrity, 2015
The presented work introduces a numerical parametric study on the crack propagation direction under mixed-mode conditions (mode I + II). It is conducted for the geometry of an eccentric asymmetric fourpoint bending of a single edge notched beam specimen;
L. Malíková, V. Veselý, S. Seitl
doaj  

High Resolution X-ray Spectroscopy of the Local Hot Gas along the 3C 273 Sightline

, 2014
X-ray observations of highly ionized metal absorption lines at z=0 provide critical information of the hot gas distribution in and around the Milky Way.
Fang, Taotao, Jiang, Xiaochuan
core   +1 more source