We study the chiral self-gravitating model (CSGM) of a special type in the spherically symmetric static spacetime in Einstein frame. Such CSGM is derived, by virtue of Weyl conformal transformation, from a gravity model ...
Zhuravlev E.; Milkereit B.; Yang B.; Heiland S.; Vieth P.; Voigt M.; Schaper M.; Grundmeier G.; Schick C.; Kessler O.(2021)
Additive manufacturing, e.g. by laser powder bed fusion (LPBF), is very attractive for lightweight constructions, as complex and stress-optimised structures integrating multiple functions can be produced within one process. ...
Minakov A.; Morikawa J.; Ryu M.; Zhuravlev E.; Schick C.(2021)
The heat transfer between a micrometer-sized particle, as used in laser-assisted additive manufacturing, and a substrate strongly depends on the variations in interfacial thermal conductance (ITC), among other thermophysical ...
Mesoporous CaCO3 crystals of sizes in the range 3–15 μm have attracted significant scientific attention as fully decomposable biocompatible drug delivery vectors. They are also used as sacrificial templates to produce ...
Jin F.y.; Yang L.y.; Li X.; Song S.y.; Du D.j.(2021)
Due to the strong heterogeneity, the infaust mobility ratio of offshore heavy oil reservoirs and the high cost of produced water treatment, a “green” in-depth profile control technology was proposed, which integrated ...
Schools are learning spaces determined by the singularities of their students, their teachers and particular contexts. The ‘complexity thinking’ approach implies understanding that schools are complex systems determined ...
The final clock product provided by the IGS (International GNSS Service) with a 30/300 s sampling interval for satellites and stations respectively is characterized by accuracy of 75 ± 20 ps RMS (Root Mean Square). Since ...
Autophagy is a core molecular pathway for the preservation of cellular and organismal homeostasis. Pharmacological and genetic interventions impairing autophagy responses promote or aggravate disease in a plethora of ...
The complexation of gadolinium(III) with citric acid in aqueous solutions was studied by pH-metric titration, proton magnetic relaxation, and mathematic simulation in the pH range 2.0–10 at [Gd3+]: [H4Cit] = 1:1, 1:2, 1:3 ...
Despite the historical realm of security, this concept has been proposed as a social issue only in the modern era and has been tried to be studied empirically. In fact, Islam has considered social security as an important ...
The coronavirus disease 2019 (COVID-19) not only will have negative impacts on religious beliefs, but will also deepen them. Attention to Islamic teachings is significantly important in dealing with the COVID-19 pandemic. ...
Polypropylene expansion tanks have been subjected to accelerated weathering testing according to the developed procedure of accelerated weathering testing. The objective of the study was to determine an arbitrary lifetime ...
Mugoni C.; Rosa R.; Giovanardi R.; Affatigato M.; Gualtieri M.L.; Siligardi C.; Andronenko S.I.; Misra S.K.(2021)
In this work, two series of glasses, i.e. (68-x) CuO – xV2O5 – 32TeO2 (x = 0–68 mol%, Te32 series) and (35-x) CuO – xV2O5 – 65TeO2 (x = 0–35 mol%, Te65 series), were synthesized by the melt-quenching method and subjected ...
The internal combustion engine is the most expensive component of a car, which determines the reliability and efficiency of its use. Studies show that one of the most common reasons for the failure of KAMAZ diesel engines ...
Liang X.; Jin Z.; Liu Q.; Alexander S.; Li P.; Vladimir M.; Boris U.(2021)
The siliceous and calcareous organic-rich shale in the Upper Jurassic-Lower Cretaceous Bazhenov Formation in West Siberian Basin is characterized by high TOC and organic matters of moderate maturity and therefore has been ...
The article is devoted to the peculiarities of solving problems of applied photometry based on the spectroradiometric approach using modern matrix spectrometers. The spectral distribution of the characteristics of the ...
A diverse series of 43 novel “soft antimicrobials” based on quaternary ammonium pyridoxine derivatives which include six-membered acetals and ketals of pyridoxine bound via cleavable linker moieties (amide, ester) with a ...
We propose a decentralized penalty method for general convex constrained multi-agent optimization problems. Each auxiliary penalized problem is solved approximately with a special parallel descent splitting method. The ...
In this paper, we considered an axion F(R) gravity model and described, with the help of holographic principle, the cosmological models of viscous dark fluid coupled with axion matter in a spatially flat Friedmann-Robertson-Walker ...
In this paper, we study the influence of nonabelian superselection rules on the transfer of quantum information with the help of qubits on the base of an algebraic model and formulate quantum protocols. We pay the main ...