Astrophysics Research Papers

Phase-change perovskite metasurfaces for dynamic color tuning

Halide perovskite metasurfaces are attracting increasing interest for applications in light-emitting and display technologies. To access the wide range of colors required for these applications, the main mechanism exploited thus far has bee...

Advances of aptamers in esophageal cancer diagnosis, treatment and drug delivery

Esophageal cancer (EC) is a common malignant tumor of the digestive tract with poor prognosis and high mortality. The early diagnosis of EC mainly depends on endoscopic diagnosis, which not only needs to bear certain economic pressure, but ...

Optimization of cationic nanoparticles stabilized by poloxamer 188: A potential approach for improving the biological activity of Aloe perryi

Aloe perryi (AP) has gained considerable interest as a medicinal herb in various biological applications due to its rich phytochemical composition. However, the therapeutic benefits of AP could be potentiated by utilizing nanotechnology. Mo...

New detection technologies for ultra-high energy cosmic rays and neutrinos

Even with an accumulated data set from an integrated six years of lifetime from the Auger experiment, no point sources of charged cosmic rays have be identified at the highest energies. Significantly increased apertures such as promised by ...

Forecasting Warping Deformation Using Multivariate Thermal Time Series and K-Nearest Neighbors in Fused Deposition Modeling

Over the past decades, additive manufacturing has rapidly advanced due to its advantages in enabling diverse material usage and complex design production. Nevertheless, the technology has limitations in terms of quality, as printed products...

In memory of Ihor Yukhnovskii, the founder and editor-in-chief of the journal ''Condensed Matter Physics'' (1925-2024)

On March 26, 2024, the prominent Ukrainian scholar, theoretical physicist, and founder of the Lviv school of statistical physics, professor, academician of the National Academy of Sciences of Ukraine Ihor Yukhnovskii, passed away. He lived ...

Entropy production and fluctuation theorems in a continuously monitored optical cavity at zero temperature

Fluctuation theorems allow one to make generalised statements about the behaviour of thermodynamic quantities in systems that are driven far from thermal equilibrium. In this article we use Crooks' fluctuation theorem to understand the entr...

Online Classification of Road Roughness Conditions with Vehicle Unsprung Mass Acceleration by Sliding Time Window

Suspension control systems are in need for more information of road roughness conditions to improve their performance under different roads. Existing methods of gauging road roughness are limited, and they usually involve visual inspections...

Risk Index Method—A Tool for Building Fire Safety Assessments

The use of fire safety engineering and performance-based techniques continues to grow in prominence as building design becomes more ambitious, increasing complexity. National fire safety enforcement agencies are tasked with evaluating and a...

IP Controller Design for Uncertain Two-Mass Torsional System Using Time-Frequency Analysis

With the development of industrial production, drive systems are demanded for larger inertias of motors and load machines, whereas shafts should be lightweight. In this situation, it will excite mechanical vibrations in load side, which is ...

CFD Simulation of the Slot Jet Impingement Heat Transfer Process and Application to a Temperature Control System for Galvanizing Line of Metal Band

A CFD model to simulate the cooling technique trough slot jet impingement has been developed. Such a technique has been tested on an existing vertical galvanizing industrial line, which initially envisaged a round jet configuration, the sub...

Sustainable Use of By-Products and Wastes from Greece to Produce Innovative Eco-Friendly Pervious Concrete

This study was based on the reduction of the extraction of natural resources and, at the same time, was focused on the use of by-products and various wastes in construction applications by following the principles of circular economy. Steri...

Integrated Geotechnical Approach and GIS for Identification of Geological Resources Exploitable Quarries for Sustainable Development in Ifni Inlier and Lakhssas Plateau (Western Anti Atlas, Morocco)

The purpose of this paper is to identify, quantify and delineate the areas with suitable aggregate resources in the Precambrian massif of Ifni and the limestone plateau of Lakhssas (southwest Morocco). To fulfill this objective, a study was...

Wave heating of the solar corona and SoHO

A short introduction is given to some wave-heating mechanisms applicable to the solar corona. Their relevance to the capabilities of the SoHO mission is briefly discussed....

Temporal properties of seismicity and largest earthquakes in SE Carpathians

In order to estimate the hazard rate distribution of the largest seismic events in Vrancea, South-Eastern Carpathians, we study temporal properties of historical and instrumental catalogues of seismicity. First, on the basis of Generalized ...

On the unstable mode merging of gravity-inertial waves with Rossby waves

We recapitulate the results of the combined theory of gravity-inertial-Rossby waves in a rotating, stratified atmosphere. The system is shown to exhibit a "local" (JWKB) instability whenever the phase speed of the low-frequency-long wave...

A multi-instrumental and modeling analysis of the ionospheric responses to the solar eclipse on 14 December 2020 over the Brazilian region

This work presents an analysis of the ionospheric responses to the solar eclipse that occurred on 14 December 2020 over the Brazilian sector. This event partially covers the south of Brazil, providing an excellent opportunity to study the m...

The effect of vibrationally excited nitrogen on the low-latitude ionosphere

The first five vibrationally excited states of molecular nitrogen have been included in the Sheffield University plasmasphere ionosphere model. Vibrationally excited molecular nitrogen reacts much more strongly with atomic oxygen ions th...

GPS network observation of traveling ionospheric disturbances following the Chelyabinsk meteorite blast

We use the Global Positioning System (GPS) network in northwest China and central Asia to monitor traveling ionospheric disturbances (TIDs), which were possibly excited by the large meteorite blast over Chelyabinsk, Russia, on 15 Februar...

<i>Preface</i><br>"10th International Workshop on Technical and Scientific Aspects of MST Radar (MST10)"