نتایج جستجو برای: superimpose

تعداد نتایج: 589  

Journal: :Journal of Materials Science 2021

Abstract During heating of Al alloys, typically a sequence precipitation and dissolution reactions occurs the single (partly opposing) superimpose. Differential scanning calorimetry (DSC) is one common technique to analyse kinetic development in but superposition exothermic endothermic complicates DSC signal interpretation, as measures sum any heat effect. Synchrotron high-energy X-ray diffract...

Journal: :E3S web of conferences 2023

As a consequence of their spontaneous occurrence, and frequent formation multiple surges with high sediment loads, debris flows are considered one the most hazardous gravity-driven mass movements in montane regions. Field measurements surface velocities an essential link chain understanding fundamental process dynamics applied protection against flows. In order to measure consecutive within sin...

Journal: :Physical review 2021

We investigate the quantum dynamics of ultra-long-range trilobite molecules exposed to homogeneous electric fields. A molecule consists a Rydberg atom and ground-state atom, which is trapped at large internuclear distances in an oscillatory potential due scattering electron off atom. Within Born-Oppenheimer approximation, we derive analytic expression for two-dimensional adiabatic electronic en...

Journal: :Metals 2022

An advanced lightweight design in cast aluminium alloys features complexly shaped geometries with strongly varying local casting process conditions. This affects the microstructure terms of porosity grade and secondary dendrite arm spacing distribution. Moreover, complex service loads imply changing load stress vectors within these components, evoking a wide range highly stressed volumes differ...

Journal: :Signal, Image and Video Processing 2021

In this paper, we introduce a preprocessing technique for blind source separation of nonnegative and overlapped data. For nuclear magnetic resonance spectroscopy (NMR), the classical method Naanaa Nuzillard (NN) requires condition that signals to be non-overlapping at certain locations, while they are allowed overlap with each other elsewhere. NN’s works well data possess stand-alone peaks (SAP...

Journal: :Physical review 2022

Gravitational wave-forms from coalescences of binary black hole systems and neutron star with low tidal effects can hardly be distinguished if the two have similar masses. In absence discriminating power based on gravitational wave-forms, classification sources into stars, holes mixed containing a only unambiguous when assuming standard model stellar evolution using fact that there exists mass ...

Journal: :Engineering reports 2023

Natural and man-made factors can cause dam failure, which constantly threatens downstream assets. Flood risk assessment is typically developed according to the hydraulic geographic characteristics of floodplain regions. However, previous approaches have not considered asset values impacts flooding on them, including threat probability consequences. This report presents a new integrated hybrid m...

Journal: :mechanics of advanced composite structures‎ 2015
j. emami j. eskandari jam m.r. zamani a. davar

the free vibration of the lattice cylindrical composite shell reinforced with carbon nano-tubes (cnts) was studied in this study. the theoretical formulations are based on the first-order shear deformation theory (fsdt) and then by enforcing the galerkin method, natural frequencies are obtained. in order to estimate the material properties of the reinforced polymer with nano-tubes, the modified...

Journal: :Climate Dynamics 2021

Abstract The exploration of the trend in stratospheric sudden warmings (SSWs) is conducive to predict SSWs future. Utilizing National Centre for Environmental Prediction Reanalysis (NCEP) (1948–2020) and Japanese 55-year (JRA55) (1958–2020), we investigated duration strength Northern Hemisphere occurred boreal winter (December–February). We found tends increase strengthen from 1948 2003. After ...

Journal: :Vestnik Permskogo universiteta 2022

The article aims at defining the key estimates made by British political leadership in relation to Washington conference, held 1921–1922. Four documents, taken from UK National Archives and published for first time, formed “skeleton” of research. A commentary is attached each document. author also used other archival materials diplomatic evidence reconstruct context estimates. concludes that pe...

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