Results 11 to 20 of about 5,205,037 (347)

Development of a certified reference material for specific surface area of quartz sand

open access: yesСтандартные образцы, 2017
The paper presents results of conducting research on the development of a certified reference material (CRM) for specific surface area of quartz sand, which is practically non-porous and therefore has low specific surface area value ~ 0.8 m2/g.
Egor P Sobina
doaj   +1 more source

Improvement of the state primary special standard of the pressure unit for the pressure difference GET 95–75

open access: yesСтандартные образцы, 2020
This article is devoted to improving the state primary special standard of the pressure unit for the pressure difference of the GET 95-75. The article describes the stages and results of work to improve the standard.
O. S. Vitkovskiy   +4 more
doaj   +1 more source

Development of a certified reference material for composition of high-purity copper as a transfer standard within GET 176-2013

open access: yesСтандартные образцы, 2017
Introduction. The paper gives information on the development of a certified reference material (CRM) for composition of high-purity copper (Cu CRM UNIIM).
Veniamin M. Zyskin   +2 more
doaj   +1 more source

Simulating star formation in molecular cloud cores IV. The role of turbulence and thermodynamics [PDF]

open access: yes, 2008
We perform SPH simulations of the collapse and fragmentation of low-mass cores having different initial levels of turbulence (alpha_turb=0.05,0.10,0.25).
Attwood, R. E.   +3 more
core   +3 more sources

Development of a reference material for the composition of 0.1 m potassium dichromate solution. Certified reference material GSO 10992-2017

open access: yesСтандартные образцы, 2019
This paper describes key stages in the development and investigation of a high-precision certified reference material (CRM) for the composition of potassium dichromate solution.
A. Yu. Shimolin, A. V. Sobina
doaj   +1 more source

Development of certified reference materials for physicochemical analysis. Certified reference solutions for the composition of aqueous aluminum, indium, magnesium, nickel and titanium

open access: yesСтандартные образцы, 2019
This paper presents information on the development and certification of reference materials (CRM) for the composition of aqueous aluminium, indium, magnesium, nickel, and titanium solutions.CRMs are represented by aqueous solutions containing aluminium ...
I. I. Ermakova   +3 more
doaj   +1 more source

The problem of improving the quality of seriously issued certified reference materials of the composition of gas mixtures

open access: yesСтандартные образцы, 2019
Currently, in the Russian Federation, the metrological traceability of certified reference materials of the composition of gas mixtures in cylinders under pressure produced by manufacturers of certified reference materials is carried out in accordance ...
L. A. Konopelko   +2 more
doaj   +1 more source

STAGES OF MODERNISATION OF THE CONTENT OF PRIMARY SCHOOL EDUCATION: UKRAINIAN EXPERIENCE

open access: yesEducation: Modern Discourses, 2018
The article highlights the Ukrainian experience of modernising the content of primary education under state independence of Ukraine. Based on the dynamics of the introduction of the State Standards for Primary Education and of a competence-based approach,
Оleksandra Savchenko
doaj   +1 more source

Formation of competencies in the process of teaching disciplines of the elective courses of the educational program in 33.05.01 “Pharmacy” training program

open access: yesВестник Майкопского государственного технологического университета, 2023
The relevance of the research topic consists in assessing and comparing the formation of competencies in future pharmacists in two educational standards (FSES HE 3+ and FSES HE 3 ++).
Irina Nikolaevna Dyakova
doaj   +1 more source

Internship Organization for Bachelor Students of Psycho-pedagogical Education (Primary School Teacher) as Training Direction

open access: yesПсихологическая наука и образование (2007. Online), 2015
The article presents the experience of testing the internship program for basic professional educational bachelor program of "Psycho-pedagogical Education" (Primary School Teacher) training direction in a network of university and school.
Zakharova I.M.
doaj   +1 more source

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