Results 81 to 90 of about 61,340 (312)

Why Engineers Should Read More Novels

Chemie Ingenieur Technik, EarlyView.
What do engineers do? And what should they work on? A surprising answer is outlined in this essay, which argues that reading novels holds the key for addressing both questions. Novels train the imagination as well as our ethical abilities – skills that are essential for developing future‐proof technologies.
Michael Kuhn
wiley   +1 more source

Nonexistence of global solutions for differential inequalities of Sobolev type

Electronic Journal of Differential Equations, 2014
In this article we study three differential inequalities of Sobolev type. Using Pokhozhaev's nonlinear capacity method, we provide sufficient conditions for the nonexistence of global nontrivial weak solutions to these problems.
Mohamed Jleli, Bessem Samet
doaj  

Itinerant curriculum theory: People's theory against the field's epistemicidal ethos

The Curriculum Journal, EarlyView.
Abstract The field of curriculum studies suffers from a glaring theoretical impasse. Much of this impasse has been rightly attributed to the triumphalism of the neoliberal wave that has massacred the educational hemisphere with policies and practices that reduce pedagogy to an instrumentalist praxis directly associated with the thirsty desires and ...
João M. Paraskeva
wiley   +1 more source

Nonexistence results of solutions for some fractional $p$-Laplacian equations in $\mathbb{R}^{N}$

Electronic Journal of Qualitative Theory of Differential Equations
In the present paper, we study the nonexistence of nontrivial weak solutions to a class of fractional $p$-Laplacian equation in two cases which are $sp > N$ and $sp < N$.
Yuxin Chen, Haidong Liu
doaj   +1 more source

Petrogenetic and geochemical characteristics of some auriferous granitoids in the Kumasi Basin, Ghana: Implications for geodynamic settings and controls of orogenic gold mineralization in the Edikan Gold Mine

Deep Underground Science and Engineering, EarlyView.
The Fobinso granitoids are granodiorites, while the Esuajah granitoids are granites based on their mineralogical composition. The granitoids are generally enriched in LILE and LREE than HFSE, MREE, and HREE, indicating mixing with crustal sources during their evolution.
Emmanuel D. Sunkari, Obed Oppong, Theophilus K. Agbenyezi   +2 more
wiley   +1 more source

On the critical behavior for a Sobolev-type inequality with Hardy potential

Comptes Rendus. Mathématique
We investigate the existence and nonexistence of weak solutions to the Sobolev-type inequality $ -\partial _t(\Delta u)-\Delta u+ \frac{\sigma }{|x|^2}u \ge |x|^{\mu }|u|^p$ in $(0,\infty )\times B$, under the inhomogeneous Dirichlet-type boundary ...
Jleli, Mohamed, Samet, Bessem
doaj   +1 more source

Strain‐based modeling and analysis for rock blasting and geomechanics applications

Deep Underground Science and Engineering, EarlyView.
This paper introduces a novel strain‐based modeling approach for blasting and geomechanical applications, using measurable variables like particle velocity, strain, and displacement. By bypassing complex constitutive relations, strain‐based models capture critical blasting trends and full‐blast design parameters with minimal calibration.
Ruilin Yang
wiley   +1 more source

Existence and uniqueness of positive solutions to a quasilinear elliptic problem in $R^N$

Electronic Journal of Differential Equations, 2005
We prove the existence of a unique positive solution to the problem $$ -Delta _{p}u=a(x)f(u) $$ in $mathbb{R}^{N}$, $N>2$. Our result extended previous works by Cirstea-Radulescu and Dinu, while the proofs are based on two theorems on bounded ...
Dragos-Patru Covei
doaj  

Existence and Nonexistence of Positive Solutions for Fractional Boundary Value Problems with Lidstone-Inspired Fractional Conditions

Mathematics
This paper investigates the existence and nonexistence of positive solutions for a class of nonlinear Riemann–Liouville fractional boundary value problems of order α+2n, where α∈(m−1,m] with m≥3 and m,n∈N. The conjugate fractional boundary conditions are
Jeffrey W. Lyons, Jeffrey T. Neugebauer, Aaron G. Wingo   +2 more
doaj   +1 more source

Nonsilting transport characteristics of coal slurry in a deep underground fluidization conveying pipeline under the action of a guide vane swirler

Deep Underground Science and Engineering, EarlyView.
Aiming at the scientific frontiers of in situ fluidized mining of deep resources, a deep coal fluidized pipeline lifting system based on hydraulic conveying has been proposed. To solve the issue of particle sedimentation of large particles in horizontal connection sections, a solution involving the installation of guide vane‐type swirlers in the ...
Jiusheng Bao, Shaodi Zhao, Yan Yin, Zhongbin Wang, Shuai Liu, Shirong Ge   +5 more
wiley   +1 more source