Results 81 to 90 of about 4,147,464 (171)

An experimental measurement of the staggered magnetization curve for a Haldane spin chain

open access: yes, 1998
Long-range magnetic ordering in R_2 Ba Ni O_5 (R=magnetic rare earth) quasi-1-dimensional mixed-spin antiferromagnets is described by a simple mean-field model that is based on the intrinsic staggered magnetization function of isolated Haldane spin ...
A. Zheludev   +33 more
core   +1 more source

Purification of LiF Powder by Zone Melting Method [PDF]

open access: yesمجله علوم و فنون هسته‌ای, 2017
In order to achieve high quality crystals, it is necessary to purify the raw material. In the present experimental study, the zone melting method was used to purify Lithium Flouride powder. A small amount of melt moves slowly from the solid area in order
R Khatiri   +7 more
doaj  

Jc Scaling and Anisotropies in Co-doped Ba-122 thin films

open access: yes, 2010
We have successfully grown epitaxial, superconducting films of Ba(Fe1-xCox)2As2 (Ba-122)with x ~ 0.1. The films grow without observable correlated defects parallel to the c-axis, as confirmed by TEM.
Freudenberger, Jens   +9 more
core   +1 more source

Case study: BA 286 & BA 12

open access: yes, 2017
This is a presentation from the International Aircraft Cabin Air Conference 2017 (Imperial College, London, 19-20 September 2017)
openaire   +3 more sources

ba

open access: yesپژوهش در نظام‌های آموزشی, 2012
چکیده این پژوهش با هدف مقای ٔسه تفاوت اثر شیو ة تمثیلی، مقا ۀسی اثربخشی طرحوارهدرمانی مبتنـی بـر شـیو ة آموزشی تمثیلی با طرحوارهدرمانی کلاسیک (به شیوه معمول) در مبتلایان به اختلال افسردهخویی انجام شد. از طرح تجربی پـیش آزمـون ، پـس آزمـون و پـی گیـری و مطالعـه بـالینی 40 نفـر از مبتلایـان بـه افسردهخویی به روش نمونه ریگ ی هدفمند صورت گرفت.
mo ha, ali ahm, ha has
openaire   +1 more source

First-principle study on compensated half metallic double perovskite compound $Ba_2PrVO_6$

open access: yes, 2016
The first-principle study on double perovskite compound Ba$_2$PrVO$_6$ has been presented in this paper. By analysing band structures and integrated density of states, it is found that Ba$_2$PrVO$_6$ is ferromagnetic metallic within LSDA and compensated ...
Deng, Jian-Bo   +4 more
core  

The role of epigenesis in the formation of the Lower Devonian carbonate reservoir of the Gamburtsev swell (Timan-Pechora petroleum province) [PDF]

open access: yesНефтегазовая геология: Теория и практика
Based on lithological and mineralogical studies and the distribution features of C, O isotopes and Sr, Ba, F elements in the carbonate strata of the Lower Devonian reservoir of the swell, the main epigenetic processes in the rocks were determined, the ...
Maydl' T.V.   +2 more
doaj  

REGENERATION OF Agave marmorata Roezl PLANTS, BY SOMATIC EMBRIOGENESIS

open access: yesTropical and Subtropical Agroecosystems, 2020
Background. Agave marmorata Roezl is a monocot plant of the Asparagaceae family, which is mainly used in the elaboration of the alcoholic drink called mezcal. This species is propagated by seeds or stolons (hijuelos), but its reproduction is slow because
Carlos Alvarez-Aragón   +3 more
doaj  

KNOWLEDGE MANAGEMENT AT EMBRAPA: SHARING OUR EXPERIENCE ON THE BUILDING OF A COLLABORATIVE MODEL

open access: yesPerspectivas em Gestão & Conhecimento, 2011
This paper investigates and analyses the process of building a knowledge management (KM) model at Brazil’s Embrapa (The Brazilian Agricultural Research Corporation).
Rivadávia Correa Drummond de Alvarenga Neto   +1 more
doaj  

Clinical and functional significance of determining biological age in women during the reproductive period

open access: yesАкушерство, гинекология и репродукция
Introduction. Biological age (BA) reflects the characteristics of the morphological and physiological state of the human body at a specific period of its life.This concept is of particular importance in reproductive medicine, because actual age does not ...
E. V. Kudryavtseva   +6 more
doaj   +1 more source

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