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Thermally bistable fluid tends to self-organize into clouds of hot and cold material, which are internally uniform and separated by thin conduction fronts. The evolution of these clouds has been studied for isobaric systems, but when…

Plasma Physics · Physics 2024-07-18 Henry Fetsch , Nathaniel J. Fisch

There has been a renewed interest in searching for diffuse interstellar bands (DIBs) due to their probable connection to organic molecules and, thus, their possible link to life in the Universe. Our group is undertaking an extensive search…

Computer simulation plays a central role in modern day materials science. The utility of a given computational approach depends largely on the balance it provides between accuracy and computational cost. Molecular crystals are a class of…

One of the varieties of pores, often found in natural or artificial building materials, are the so-called blind pores of dead-end or saccate type. Three-dimensional model of such kind of pore has been developed in this work. This model has…

Fluid Dynamics · Physics 2017-08-22 Eduard G. Nikonov , Miron Pavluš , Mária Popovičová

We investigate experimentally the mixing dynamics in a channel flow with a finite stirring region undergoing chaotic advection. We study the homogenization of dye in two variants of an eggbeater stirring protocol that differ in the extent…

Chaotic Dynamics · Physics 2010-04-30 Emmanuelle Gouillart , Olivier Dauchot , Jean-Luc Thiffeault , Stéphane Roux

The mixing of magmas is a fundamental process in the Earth system causing extreme compositional variations in igneous rocks. This process can develop with different intensities both in space and time, making the interpretation of…

Diffusion of colored dye on water saturated paper substrates has been traditionally exploited with great skill by renowned water color artists. The same physics finds more recent practical applications in paper based diagnostic devices…

Soft Condensed Matter · Physics 2020-02-27 Sankha Shuvra Das , Sumeet Kumar , Sambuddha Ghosal , Sandip Ghosal , Suman Chakraborty

Recent studies of the molecular medium in nearby galaxies have provided mounting evidence that the molecular gas can exist in two phases: one that is clumpy and organized as molecular clouds and another one that is more diffuse. This last…

Astrophysics of Galaxies · Physics 2015-06-23 Anahi Caldu-Primo , Andreas Schruba , Fabian Walter , Adam Leroy , Alberto D. Bolatto , Stuart Vogel

In this experimental study, we report on the mixing properties of interfacial colloidal floaters (glass bubbles) by chemical and hydrodynamical currents generated by self-propelled camphor disks swimming at the air-water interface. Despite…

Materials of the Y-Ba-Cu-O (melt-textured YBa2Cu3O7-d-based materials or MT-YBCO) and Mg-B-O (MgB2-based materials) systems with high superconducting performance, which can be attained due to the formation of regularly distributed…

Alloying magnesium (Mg) with rare earth elements such as yttrium (Y) has been reported to activate the pyramidal <c + a> slip systems and improve the plasticity of Mg at room temperature. However, the origins of such dislocations and their…

Materials Science · Physics 2018-01-01 Zhigang Ding , Wei Liu , Hao Sun , Shuang Li , Dalong Zhang , Yonghao Zhao , Enrique J. Lavernia , Yuntian Zhu

We present the comparison of the three most important ice constituents (water, CO and CO2) in the envelopes of massive Young Stellar Objects (YSOs), in environments of different metallicities: the Galaxy, the Large Magellanic Cloud (LMC)…

Solar and Stellar Astrophysics · Physics 2015-05-20 J. M. Oliveira , J. Th. van Loon , G. C. Sloan , R. Indebetouw , F. Kemper , A. G. G. M. Tielens , J. D. Simon , Paul M. Woods , M. Meixner

In this work, we report a strengthened superheating effect caused by a buffering YBa2Cu3Oy (Y123 or YBCO) layer in the Nd1+xBa2-xCu3O7-y (Nd123 or NdBCO) thin film with MgO substrate (i.e., NdBCO/YBCO/MgO thin film). In the cold-seeding…

Superconductivity · Physics 2015-06-03 H. H. Xu , Y. Y. Chen , L. Cheng , S. B. Yan , D. J. Yu , X. Yao

In this paper, we report on nontrivial results of our investigations of dynamic and thermodynamic moduli in search of invariants for viscous liquids in the density scaling regime by using selected supercooled van der Waals liquids as…

Soft Condensed Matter · Physics 2017-10-11 Agnieszka Jedrzejowska , Andrzej Grzybowski , Marian Paluch

Black phosphorus (bP) has been recently investigated for next generation nanoelectronic multifunctional devices. However, the intrinsic instability of exfoliated bP (the bP nanoflakes) towards both moisture and air has so far overshadowed…

Transport properties, such as viscosity and thermal conduction, of the hot intergalactic plasma in clusters of galaxies, are largely unknown. While for laboratory plasmas these characteristics are derived from the gas density and…

High Energy Astrophysical Phenomena · Physics 2019-06-18 I. Zhuravleva , E. Churazov , A. A. Schekochihin , S. W. Allen , A. Vikhlinin , N. Werner

Charge-ordered manganites of composition $\rm Pr_{1-x}(Ca_{1-y}Sr_{y})_{x}MnO_3$ exhibit persistent photoconductivity upon exposure to x-rays. This is not always accompanied by a significant increase in the {\it number} of conduction…

Materials Science · Physics 2009-10-31 D. Casa , V. Kiryukhin , O. A. Saleh , B. Keimer , J. P. Hill , Y. Tomioka , Y. Tokura

Observed ultraviolet (UV) colours of nearby disc galaxies show a reddening relative to their expected intrinsic colours. Since the 2175 \AA bump found in the Milky Way's dust extinction law blues the UV colours, it might suggest that dust…

Astrophysics · Physics 2007-05-23 Akio K. Inoue

Solid-solid collapse transition in open framework structures is ubiquitous in nature. The real difficulty in understanding detailed microscopic aspects of such transitions in molecular systems arises from the interplay between different…

Soft Condensed Matter · Physics 2015-06-15 Rakesh S. Singh , Biman Bagchi

We present detailed evolutionary calculations focused on the evolution of intermediate mass stars with 3 Msun < M < 9 Msun of metallicity typical of the Large Magellanic Cloud (LMC), i.e. Z=0.008. We compare carefully the models calculated…

Astrophysics · Physics 2009-11-11 P. Ventura , M. Castellani , C. W. Straka