Results 51 to 60 of about 289,053 (270)

Impact of Sustainable Binders Based on Lignin and Collagen on the Volume Stability and Mechanical Properties of MgO‐C Refractories with MgO‐C Recyclates

open access: yesAdvanced Engineering Materials, EarlyView.
Collagen hydrolysate is evaluated as a sustainable binder for MgO‐C refractories. Its thermally induced cross‐linking and gas release lead to expansion and cracking in large bricks, but tailored batches with lignin, recyclates, or fine graphite improve the gas release while thermal treatment and stability.
Till M. J. Stadtmüller   +8 more
wiley   +1 more source

Numerical Modeling of Tank Cars Carrying Hazardous Materials With and Without Composite Metal Foam

open access: yesAdvanced Engineering Materials, EarlyView.
Large‐scale puncture models consisting of hazardous materials (HAZMATs) tank car with protective steel–steel composite metal foam (S–S CMF) are solved numerically. Tank car plate with added 10.91–13.33 mm thick S–S CMF layer does not puncture. Protective S–S CMF absorbs impact energy, reduces plate deformation, and prevents shear bands formation ...
Aman Kaushik, Afsaneh Rabiei
wiley   +1 more source

The Geometric Characterizations of the Ramanujan-Type Entire Function

open access: yesMathematics
In the present paper, we present certain geometric properties, such as starlikeness, convexity of order η(0 ...
Khaled Mehrez, Abdulaziz Alenazi
doaj   +1 more source

A new subclass of close-to-convex functions [PDF]

open access: yesSurveys in Mathematics and its Applications, 2016
In this work, we introduce and investigate an interesting subclass Xt(γ) of analytic and close-to-convex functions in the open unit disk U. For functions belonging to the class Xt(γ), we drive several properties including coefficient estimates ...
J. K. Prajapat
doaj  

On the Hankel determinants of close-to-convex univalent functions

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1980
The rate of growth of Hankel determinant for close-to-convex functions is determined. The results in this paper are best possible.
K. Inayat Noor
doaj   +1 more source

Criteria for a certain class of the Carathéodory functions and their applications

open access: yesJournal of Inequalities and Applications, 2020
In this paper, we obtain some potentially useful conditions (or criteria) for the Carathéodory functions as a certain class of analytic functions by applying Nunokawa’s lemma.
Nak Eun Cho   +3 more
doaj   +1 more source

Almost Budget Balanced Mechanisms with Scalar Bids For Allocation of a Divisible Good

open access: yes, 2017
This paper is about allocation of an infinitely divisible good to several rational and strategic agents. The allocation is done by a social planner who has limited information because the agents' valuation functions are taken to be private information ...
Bhashyam, Srikrishna   +3 more
core   +1 more source

Time‐Dependent Oxidation and Scale Evolution of a Wrought Co/Ni‐Based Superalloy

open access: yesAdvanced Engineering Materials, EarlyView.
This study shows how a new wrought Co/Ni‐based superalloy resists oxidation at 800 ∘$^\circ$C. The oxide scale changes from rough, fast‐growing spinel to a dense, protective chromia–alumina layer. Atom probe analysis reveals tiny refractory‐rich bubbles at the interface that mark the transition to long‐term, diffusion‐controlled protection ...
Cameron Crabb   +6 more
wiley   +1 more source

Bazilevic functions of type β

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1982
In this paper, a new coefficient result for the Bazileviĉ functions of type β is obtained.
K. Inayat Noor
doaj   +1 more source

On Some Problems of Strongly Ozaki Close-to-Convex Functions

open access: yesJournal of Function Spaces, 2020
The purpose of the current paper is to investigate some geometric properties of the class FOν,γ, called strongly Ozaki close-to-convex functions, such as strongly starlikeness and close-to-convexity.
Zahra Maleki   +3 more
doaj   +1 more source

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