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Nazarbayev University Repository is an institutional electronic archive for long term storage, accumulation and provision of long-term and reliable open access to scientific research results and intellectual products of the academic community of Nazarbayev University associated with them.

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ECL is an astrophysics laboratory founded by Nobel Prize Winner George Smoot in 2017, with the goal to understand fundamental problems in physics and astrophysics and contribute to the technical know-how and innovation ...

Recently Added

RF MULTIPLIER BASED ON HARMONIC-LOCKED SMFP-LD AND OEO STRUCTURE

Chen, Hao; Ukaegbu, Ikechi Augustine; Nakarmi, Bikash; Pan, Shilong (Chen, H., Ukaegbu, I. A., Nakarmi, B., & Pan, S. (2021). RF Multiplier Based on Harmonic-Locked SMFP-LD and OEO Structure. IEEE Access, 1. https://doi.org/10.1109/access.2021.3138433, 2022)

We propose and experimentally demonstrate an RF signal multiplier based on optical injection locking in a semiconductor laser followed by an optoelectronic oscillator (OEO). In the proposed scheme, the modulated master ...
A CRITICAL REVIEW OF 3D PRINTING AND DIGITAL MANUFACTURING IN CONSTRUCTION ENGINEERING

Ali, Md. Hazrat; Issayev, Gani; Shehab, Essam; Sharfraz, Shoaib (Rapid Prototyping Journal, 2022)

Purpose In recent years, 3D printing technologies have been widely used in the construction industry. 3D printing in construction is very attractive because of its capability of process automation and the possibility of ...
CONNECTION BETWEEN REGULAR BLACK HOLES IN NONLINEAR ELECTRODYNAMICS AND SEMICLASSICAL DUST COLLAPSE

Malafarina, Daniele; Toshmatov, Bobir (PHYSICAL REVIEW D, 2022)

There exists a correspondence between black holes in nonlinear electrodynamics (NLED) and gravitational collapse of homogeneous dust with semiclassical corrections in the strong curvature regime that to our knowledge has ...
SWISS-CHEESE COSMOLOGIES WITH VARIABLE G AND Λ FROM THE RENORMALIZATION GROUP

Anagnostopoulos, Fotios K.; Bonanno, Alfio; Mitra, Ayan; Zarikas, Vasilios (PHYSICAL REVIEW D, 2022)

A convincing explanation for the nature of the dark energy and dark matter is still missing. In recent works a RG-improved swiss-cheese cosmology with an evolving cosmological constant dependent on the Schücking radius has ...
DOMINANT CURRENCIES: HOW FIRMS CHOOSE CURRENCY INVOICING AND WHY IT MATTERS*

Amiti, Mary; Itskhoki, Oleg; Konings, Jozef (The Quarterly Journal of Economics, 2022)

We analyze how firms choose the currency of invoicing and the implications of this choice for exchange rate pass-through into export prices and quantities. Using a new data set for Belgian firms, we find currency invoicing ...