Belarusian State University

Comparative analysis of parametric X-ray radiation from diamond powders with varying particle sizes

The traditional Debye-Scherrer method for crystallite size determination faces fundamental limitations when analyzing nanosized objects due to peak broadening effects. This research explores parametric X-ray radiation (PXR) as a promising alternative approach, where radiation is...

Massively Multiplexed Photonic Chip With Cross‐Channel Fusion For Harmonized Biosensing

ABSTRACT Accurate, label‐free analysis of complex biological mixtures is limited by poor multiplexing scalability and inconsistent responses across sensor samples. We introduce a transformative sensing platform that integrates large‐scale photonic multiplexing with data‐driven an...

Cosmic Potential Field I: A Preliminary Theoretical Framework for Scale-Dependent WJ Gravity and Cosmic Tension Dynamics

This Zenodo record presents the open-access manuscript and reproducibility archive for Cosmic Potential Field I, a consolidated formulation of the scale-dependent WJ gravitational and cosmological framework. The problem addressed by WJ is not merely how to reproduce galaxy rotati...

Cosmic Potential Field I: A Preliminary Theoretical Framework for Scale-Dependent WJ Gravity and Cosmic Tension Dynamics

This Zenodo record presents the open-access manuscript and reproducibility archive for Cosmic Potential Field I, a consolidated formulation of the scale-dependent WJ gravitational and cosmological framework. The problem addressed by WJ is not merely how to reproduce galaxy rotati...

Criterion for Absolute Continuity of Curves in Metric Spaces

It is proved that a parameterized curve in a metric space $$X$$ is absolutely continuous if and only if so is its composition with each Lipschitz function on $$X$$

A contactless heat engine driven by nonreciprocal fluctuation-induced torques

We describe a contactless heat engine in which quantum and thermal electromagnetic fluctuations act as the working medium. The setup consists of two concentric cylinders held at different temperatures. The inner cylinder stably levitates within the outer one due to repulsive none...

DEVELOPMENT OF APPROACHES TO THE MANAGEMENT OF THE NATIONAL ECONOMIC SYSTEM (USING THE EXAMPLE OF THE DIGITAL ECONOMY SECTOR)

The article analyzes the main macroeconomic indicators that characterize the effectiveness of the digital economy. The trends of these indicators are revealed. The relevance of the application of adaptive management of the national economic system is substantiated using the examp...