Results 81 to 90 of about 951,322 (313)

Rationally Designed Carbon Nanomaterials for Electrically Driven Solid‐State Hydrogen Storage

open access: yesAdvanced Functional Materials, EarlyView.
A bottom‐up design principle integrating atomic‐level and nanoscale structural engineering is developed to guide the rational design of electrically tunable, solid‐state hydrogen storage materials that enable non‐dissociative chemisorption under applied electric fields.
Yong Gao   +30 more
wiley   +1 more source

CONVEX SEQUENCE AND CONVEX POLYGON

open access: yes
In this paper, we deal with the question; under what conditions the points $P_i(xi,yi)$ $(i = 1,\cdots, n)$ form a convex polygon provided $x_1 < \cdots < x_n$ holds. One of the main findings of the paper can be stated as follows: "Let $P_1(x_1,y_1),\cdots ,P_n(x_n,y_n)$ are $n$ distinct points ($n\geq3$) with $x_1< ...
Goswami, Angshuman Robin   +1 more
openaire   +2 more sources

The Constrained 2-Maxian Problem on Cycles

open access: yesMathematics
This paper deals with p-maxian problem on cycles with an upper bound on the distances of all facilities. We consider the case of p=2 and show that, in the worst case, the optimal solution contains at least one vertex of the underlying cycle, which helps ...
Chunsong Bai, Jun Du
doaj   +1 more source

Thermo-Responsive Shape-Memory Effect and Surface Features in Polycarbonate (PC)

open access: yesApplied Sciences, 2017
The influence of programming strain and temperature on the shape memory effect and surface morphology in programmed polycarbonate (PC) samples via uni-axial stretching is investigated.
Xuelian Wu   +3 more
doaj   +1 more source

Accelerated Kinetics of Desolvation and Redox Transformation Enabled by MOF Sieving for High‐Loading Mg‐S Battery

open access: yesAdvanced Functional Materials, EarlyView.
A strategy of sieving catalysis based on the MIL‐101(Cr) with multistage pore structure and Lewis acid sites has been proposed as the catalyst to accelerate the kinetics of desolvation and redox conversion of sulfur species, achieving high performance Mg‐S batteries.
Qinghua Guan   +8 more
wiley   +1 more source

Contractibility and Convexity [PDF]

open access: yesProceedings of the American Mathematical Society, 1954
The purpose of this note is to present a purely geometrical result that appeared as a by-product of research in the theory of games. A preliminary draft had been written when it was discovered that a proof of the theorem had been published by I. Liberman [1 ]2 in 1943.
openaire   +2 more sources

Convex congruences [PDF]

open access: yesSoft Computing, 2016
For an algebra [Formula: see text] belonging to a quasivariety [Formula: see text], the quotient [Formula: see text] need not belong to [Formula: see text] for every [Formula: see text]. The natural question arises for which [Formula: see text]. We consider algebras [Formula: see text] of type (2, 0) where a partial order relation is determined by the ...
Ivan Chajda, Helmut Länger
openaire   +2 more sources

Chemo‐Mechanical Coupling in Hydrogels: Dynamics in the Diffusion‐Limited Regime

open access: yesAdvanced Functional Materials, EarlyView.
A time‐dependent continuum model is developed to capture the transient swelling dynamics of chemo‐mechanical hydrogels. By coupling chemical reactions, solvent transport, and polymer deformation, volume phase transitions, reaction kinetics, and transient mechanical instabilities are analyzed.
Yao Xiong   +2 more
wiley   +1 more source

Fejér type inequalities for m-convex functions

open access: yesPublicaciones en Ciencias y Tecnología, 2018
In this paper we present some generalizations of the classical inequalities of Fejér for m-convex functions.

doaj  

Some Evaluations About Coefficients Boundaries for Specific Classes of Bi-Univalent Functions

open access: yesAxioms
New subclasses of bi-univalent functions with bounded boundary rotation are presented in this study. We acquired estimates for the initial coefficients a2, a3 and a4.
Suliman M. Sowileh   +5 more
doaj   +1 more source

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