Results 31 to 40 of about 378,071 (208)

Ból jako jeden z głównych problemów osób leczonych operacyjnie

open access: yesInnowacje w Pielęgniarstwie i Naukach o Zdrowiu, 2021
Wstęp. Ból jest jednym z najczęstszych odczuć towarzyszących w życiu każdego człowieka. Właściwie prowadzona terapia przeciwbólowa jest podstawowym prawem pacjenta. Cel.
Katarzyna Budzyńska
doaj   +1 more source

Numerical study of dynamical system generated by CABC vector field [PDF]

open access: yesИзвестия высших учебных заведений: Прикладная нелинейная динамика, 2020
Purpose of this study is to construct a helical vector field and analyze the dynamical system generated by it. Classic example of such field is the ABC (Arnold–Beltrami–Childress) flow, which is equations stationary solution of the dynamics of ideal ...
Govorukhin, V. N.
doaj   +1 more source

Calibrating Emission Lines as Quasar Bolometers [PDF]

open access: yes, 2011
Historically, emission lines have been considered a valuable tool for estimating the bolometric thermal luminosity of the accretion flow in AGN, $L_{bol}$.
Antonucci   +33 more
core   +1 more source

Harnessing Controlled Dealloying–Support Coupling for Ultrastable PtNi Catalysts in PEMFC Applications

open access: yesAngewandte Chemie, EarlyView.
A controllable alloying–dealloying strategy constructs PtNi core–shell nanoparticles confined within an N‐doped carbon framework. Selective ammonia‐assisted dealloying forms a Pt‐rich shell while immobilizing Ni as Ni–N/C moieties, synergistically stabilizing the catalyst.
Fei Guo   +14 more
wiley   +2 more sources

Analysis of Waterman’s Method in the Case of Layered Scatterers

open access: yesAdvances in Mathematical Physics, 2017
The method suggested by Waterman has been widely used in the last years to solve various light scattering problems. We analyze the mathematical foundations of this method when it is applied to layered nonspherical (axisymmetric) particles in the ...
Victor Farafonov   +3 more
doaj   +1 more source

Scenarios of passive particle transport in the velocity field of a vortex pair in shear flow [PDF]

open access: yesИзвестия высших учебных заведений: Прикладная нелинейная динамика
The purpose of the work is to analyze the transport of passive particles in the velocity field of a two-vortex configuration on a plane with a possible presence of a shear flow.
Govorukhin, Vasily Nikolaevich   +1 more
doaj   +1 more source

Detection Efficiency of NaI(Tl) Detector in 511–1332 keV Energy Range

open access: yesScience and Technology of Nuclear Installations, 2014
As it is important to obtain accurate analytical result in an experimental research, this required quality control of the experimental system. Gamma spectrometry system can be used in a variety of different fields such as radiation and medical physics ...
I. Akkurt, K. Gunoglu, S. S. Arda
doaj   +1 more source

The \chi Factor: Determining the Strength of Activity in Low Mass Dwarfs

open access: yes, 2004
We describe a new, distance-independent method for calculating the magnetic activity strength in low mass dwarfs, L_{H\alpha}/L_{bol}. Using a well-observed sample of nearby stars and cool standards spanning spectral type M0.5 to L0, we compute ``\chi'',
Andrew A. West   +3 more
core   +2 more sources

On the universality of some Smarandache loops of Bol-Moufang type [PDF]

open access: yes, 2006
A Smarandache left (right) inverse property loop in which all its f; g- principal isotopes are Smarandache f; g- principal isotopes is shown to be universal if and only if it is a Smarandache left(right) Bol loop in which all its f; g- principal isotopes
Awolowo, Obafemi   +1 more
core   +1 more source

Producción de grano de ecotipos locales de cañahua (Chenopodium pallidicaule Aellen) con aplicación de biol de estiércol bovino en la Estación Experimental Choquenaira

open access: yesRevista de Investigación e Innovación Agropecuaria y de Recursos Naturales, 2020
En las zonas productoras de cañahua, los ecotipos locales de cañahua reportan bajos rendimientos en grano; por consiguiente se plantea, investigar la respuesta de la aplicación de biol elaborado a partir de estiércol bovino en el incremento del ...
Félix Mamani Reynoso
doaj  

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