Results 81 to 90 of about 708,663 (293)

On some open problems concerning perfect powers [PDF]

open access: yes
The starting point of our paper is Kashihara's open problem number $30$, concerning the sequence $A001292$ of the OEIS, asking how many terms are powers of integers.
Ripà, Marco
core   +1 more source

Approximated Characteristics of Bivariate Discrete Time Series with Missing Data [PDF]

open access: yesالمجلة العلمية للدراسات والبحوث المالية والتجارية
The extended finite Fourier transformation is an effective mathematical method for analyzing time series data with vector values. In this study, the transformation is applied to (n + m) time series data, and the approximations obtained are used to create
Mohamed Ali Shappan Alargat   +2 more
doaj   +1 more source

Perfect Circle's Plant in Richmond, Indiana

open access: yes, 1940
Luvena Dethridge sang in concerts while holding various jobs. After working at Reid Memorial Hospital as a cook, laundress, and maid, she worked as a piston inspector for the Perfect Circle plant in Richmond in the 1940s. A contract for a concert in 1945
Perfect Circle Company
core  

Microstructure Modification of Additively Manufactured Mo–9Si–8B by Annealing and Its Effects on High‐Temperature Mechanical Properties

open access: yesAdvanced Engineering Materials, EarlyView.
Postbuild annealing systematically modifies the phase fractions and morphology of EB‐PBF processed Mo–9Si–8B. Quantitative microstructure–property correlations reveal how controlled phase evolution enhances high‐temperature compressive strength and creep resistance.
Christopher Schmidt   +5 more
wiley   +1 more source

Features of Mechanisms of Socialization and Resocialization of Minors from the Point of View of Increasing their Efficiency

open access: yesTheory and Practice of Public Administration
In order to improve the mechanisms of socialization and resocialization of minors and to establish control over such negative phenomena in the economic, social and spiritual spheres as social maladaptation, decline of spirituality, devaluation of moral ...
Kateryna Dubovyk
doaj   +1 more source

Optical trapping with a perfect vortex beam [PDF]

open access: yes, 2014
The authors would like to thank the UK Engineering and Physical Sciences Research Council (EPSRC) for funding.Vortex beams with different topological charge usually have different profiles and radii of peak intensity.
Arita, Yoshihiko   +9 more
core   +1 more source

Discrepancies Between Micro Versus Macroscale Viscoelastic Properties in a Microplastic‐Tissue Composite Model

open access: yesAdvanced Engineering Materials, EarlyView.
This study explores the discrepancies between bulk mechanics and spatial mapping in a tissue‐mimetic hydrogel model. Microplastic particles create localized stiff mechanical microenvironments that are detectable by cellular‐scale nanoindentation but leave bulk properties unchanged as measured by rheology.
Ahron T. Verschleisser   +3 more
wiley   +1 more source

Leveraging Symbolic Artificial Intelligence and Fuzzy Logic for Materials Science: A Review of Methods, Challenges, and Applications to Scarce and Imperfect Experimental Data

open access: yesAdvanced Engineering Materials, EarlyView.
This article explores the transformative potential of symbolic artificial intelligence (AI) in the field of materials science, particularly in leveraging experimental data. The article presents several symbolic AI models and discusses their applications in materials science.
Ahmed Amrani   +7 more
wiley   +1 more source

The perfect man in Islamic philosophy, reality or illusion [PDF]

open access: yesKom: Časopis za Religijske Nauke, 2017
In the works of Islamic philosophers, the position of the ideal head of the ideal society was occupied by the divine prophet who, according to their description, possessed all the virtues of a human being can possibly have. Unlike an ideal society which,
Halilović Tehran
doaj  

A Novel Approach to Estimate the Transition Temperature via Dynamic Nanoindentation

open access: yesAdvanced Engineering Materials, EarlyView.
A new dynamic nanoindentation‐based method was developed that uses the stiffness ratio as an indicator of the elastic–plastic deformation contributions at different temperatures. The approach successfully identified transition temperatures in ferritic steel and distinguished them from continuously ductile austenitic steel.
Stefan Zeiler   +4 more
wiley   +1 more source

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