Results 161 to 170 of about 8,209,944 (376)

Calculating the size of positronium

open access: yesИзвестия высших учебных заведений. Поволжский регион: Физико-математические науки
Background. A fairly common error has been established in the particular case of the problem of two bodies of the same mass performing circular motion around a fixed center of their mass, which consists in the fact that the radius of rotation is found ...
I.P. Popov
doaj   +1 more source

The Electron-dense Bodies of Mycobacterium phlei

open access: bronze, 1955
Audrey M. Glauert, E.M. BRIEGER
openalex   +1 more source

Phase Stability Study of the Marcasite‐Structure Solid Solutions (Fe,TM)Sb2 (TM = Cr, Ni) Synthesized via Combinatorial Co‐Deposition and Antimonization

open access: yesAdvanced Engineering Materials, EarlyView.
Phase diagrams of transition‐metal di‐pnictides have been efficiently and quickly explored by combinatorial deposition of transition‐metal films and subsequent antimonization enabling the study of compounds with volatile elements. In (Fe,Ni)Sb2 and the (Fe,Cr)Sb2 substitution series, phase separation has been evidenced between class‐A and B marcasites ...
Martin Kostka   +8 more
wiley   +1 more source

POLARIZATION PHENOMENA IN PROCESS e⁺+e⁻ → N+Ñ+γ

open access: yesEast European Journal of Physics, 2018
The emission of the hard photon from the initial state is considered. The nucleon polarization and the differential cross sections for some experimental conditions have been calculated.
G. I. Gakh   +3 more
doaj  

Effect of Water Aging on the Mechanical Properties of Hybrid Carbon/Aramid Reinforced Thermoplastic Composites

open access: yesAdvanced Engineering Materials, EarlyView.
This study investigates the mechanical properties of Carbon/Aramid intraply hybrid fiber‐reinforced Elium composites under 6 months of water aging. After aging, flexural strength decreases by 25.89%, tensile strength by 4.40%, and fracture toughness by 21.56%.
Muhammed Huseyin Guzel, Gurol Onal
wiley   +1 more source

X‐Ray Computed Tomography Quantifies Primary Phases and Reveals Crack Morphology in High‐Cycle Fatigue of Aluminum Alloy EN AW‐2618A

open access: yesAdvanced Engineering Materials, EarlyView.
Primary phases and a fatigue crack are studied in a forged blank of an aluminum alloy using synchrotron and laboratory X‐ray computed tomography. To image the crack, the fatigue test is interrupted, and a static tensile load is applied to open the crack.
Jakob Schröder   +6 more
wiley   +1 more source

Tribology of ZrC Coatings and Spherical Tips Acquired with Extraordinarily Stiff, Metal Atomic Force Microscopy Probes

open access: yesAdvanced Engineering Materials, EarlyView.
In this research, ZrC coatings are evaluated against various counterprobes at the microscale using novel super‐stiff atomic force microscopy cantilevers. The chemical composition of the coating is shown to be an important factor influencing coating hardness and Young's modulus, while surface roughness, counterprobe hardness, and surface energy are the ...
Piotr Jenczyk   +4 more
wiley   +1 more source

Influence of a Standard Heat Treatment on the Microstructure and Properties of Inconel X‐750 Produced by Laser Powder Bed Fusion

open access: yesAdvanced Engineering Materials, EarlyView.
Ni‐base superalloys produced using additive manufacturing (AM) have a different response to heat treatments when compared to their conventional counterparts. Due to such unpredictability, various alloys with industrial interest are currently overlooked in most prior AM research.
Guilherme Maziero Volpato   +6 more
wiley   +1 more source

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