Results 71 to 80 of about 1,721,044 (306)

X-Ray Spectral Study of AGN Sources Content in Some Deep Extragalactic XMM-Newton Fields

open access: yes, 2011
We undertake a spectral study of a sample of bright X-ray sources taken from six XMM-Newton fields at high galactic latitudes, where AGN are the most populous class. These six fields were chosen such that the observation had an exposure time more than 60
A.E. Georgakakis   +14 more
core   +1 more source

On the nature of the X-ray absorption in the Seyfert 2 galaxy NGC 4507 [PDF]

open access: yes, 1997
We present results of the ASCA observation of the Seyfert 2 galaxy NGC 4507. The 0.5-10 keV spectrum is rather complex and consists of several components: (1) a hard X-ray power law heavily absorbed by a column density of about 3 10^23 cm^-2, (2) a ...
Audano, R.   +6 more
core   +3 more sources

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

Soft Power of India

open access: yesHistoria i Polityka, 2019
India is a country experiencing tremendous eco­nomic growth while its political ambitions are aiming higher and higher as well. The country is trying to increase its global power using re­sources and instruments of soft power.
Robert Łoś
doaj   +1 more source

Analisis Pembangunan Soft Power Qatar melalui Piala Dunia 2022 [PDF]

open access: yes, 2015
Qatar merupakan negara kecil yang terletak di Timur Tengah dan berdampingan dengan Arab Saudi. Namun, meskipun negara kecil, Qatar sedikit demi sedikit mempunyai pengaruh di kawasan regional.
Eranda, R. (Rafi)
core  

Residual Stress States in Microstructurally Graded PBF–LB/M Austenitic Steel Components

open access: yesAdvanced Engineering Materials, EarlyView.
This study examines microstructurally graded 316L rectangular tube profiles fabricated via PBF–LB/M using a dual‐laser system. A 1 kW top‐hat and a 400 W Gaussian laser create distinct grain sizes and crystallographic texture. Mechanical properties are linked to microstructural evolution driven by processing conditions.
Nico Möller   +5 more
wiley   +1 more source

Battlefield of global ranking : how do power rivalries shape soft power index building? [PDF]

open access: yes, 2019
International competition over soft power has largely transformed from image promotion and cultural diplomacy to benchmark setting. Benchmarks breed discourses and discourses embody power.
Wu, Ruiqin, Zhang, Chang
core   +1 more source

New Developments in the Field of Production and Application of Multi‐Material Wire Arc Additive Manufacturing Components: A Review

open access: yesAdvanced Engineering Materials, EarlyView.
The utilization of direct energy deposition (DED)‐arc additive manufacturing processes in industrial applications is increasing, and these processes have the potential for multi‐material applications. This work provides a overview of the state of research in DED‐arc made functional graded structures, to establish a link to potential industrial ...
Kai Treutler, Volker Wesling
wiley   +1 more source

Magnetoactive Metamaterials: A State‐of‐the‐Art Review

open access: yesAdvanced Engineering Materials, EarlyView.
Magnetoactive metamaterials combine magnetoactive composites with architected metastructures to enable contactless, tunable control of mechanical, acoustic, and elastic properties. This review highlights recent advances in their design, fabrication, and applications in soft robotics, biomedical devices, and adaptive structures and outlines future ...
Seyyedmohammad Aghamiri, Ramin Sedaghati
wiley   +1 more source

Nitrogen-Doped Graphene Uniformly Loaded with Large Interlayer Spacing MoS2 Nanoflowers for Enhanced Lithium–Sulfur Battery Performance

open access: yesMolecules
Lithium–sulfur (Li-S) batteries offer a high theoretical energy density but suffer from poor cycling stability and polysulfide shuttling, which limits their practical application.
Zhen Wu   +16 more
doaj   +1 more source

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