Results 21 to 30 of about 5,741,583 (149)

Agitación electromagnética en la colada continua de acero

open access: yesRevista de Metalurgia, 1995
La instalación de agitadores electromagnéticos en las máquinas de colada continua del acero ha mejorado notablemente la calidad interna del producto colado. En este trabajo se describen los ensayos efectuados con bobinas agitadoras situadas en diferentes
G. Álvarez de Toledo   +2 more
doaj   +1 more source

Resonant vacuum gauge

open access: yesСтандартные образцы, 2020
This article is devoted to development and research of sensitive elements, transducers and vacuum gauges created by resonant method and intended for measuring absolute pressure in a wide range from 10 to 104 Pa.
V. N. Gorobey   +2 more
doaj   +1 more source

Influencia de los elementos residuales cobre, estaño, fósforo y arsénico en el agrietamiento de la superficie del acero inoxidable 18-8 durante la compresión a altas temperaturas

open access: yesRevista de Metalurgia, 1998
Esta investigación aborda el estudio del efecto de concentraciones variables de cobre, estaño, fósforo y arsénico en el agrietamiento de la superficie de un acero 18-8, sometido a ensayos de compresión, a 1.123 y 1.273 K, en atmósfera oxidante (aire). Se
J. Botella   +2 more
doaj   +1 more source

Application of the Method of Coprecipitation of Salts to Obtain Zinc Orthostannate [PDF]

open access: yesMATEC Web of Conferences, 2021
The effect of the temperature treatment of compounds obtained by the method of co-precipitation of zinc and tin (IV) salts on the synthesis of highly dispersed zinc orthostannate in the temperature range 800 – 1300 °C was studied.
Antonov Dmitry A.   +2 more
doaj   +1 more source

Species limits in Diaporthe: molecular re-assessment of D. citri, D. cytosporella, D. foeniculina and D. rudis [PDF]

open access: yesPersoonia - Molecular Phylogeny and Evolution of Fungi, 2014
Species of Diaporthe are important plant pathogens of a wide range of hosts worldwide. In the present study the species causing melanose and stem end rot diseases of Citrus spp. are revised. Three species of Diaporthe occurring on Citrus are characterised, including D. citri, D. cytosporella and D. foeniculina.
Udayanga, D.   +3 more
openaire   +3 more sources

Application of gas chromatography with tandem mass spectrometry for certification of the reference material of «Dioxins» in animal fat

open access: yesСтандартные образцы, 2020
The article presents the results of applying gas chromatography - mass-spectrometry (GC-MS) and tandem mass spec-trometry (GC-MS/MS) methods for determination of certified values (mass fraction) of «Dioxins» - Polychlorinated Dibenzo-p-dioxins and ...
A. I. Krylov   +2 more
doaj   +1 more source

Noncommutative supergravity inD= 3 andD= 4 [PDF]

open access: yesJournal of High Energy Physics, 2009
We present a noncommutative D=3, N=1 supergravity, invariant under diffeomorphisms, local U(1,1) noncommutative \star-gauge transformations and local \star-supersymmetry. Its commutative limit is the usual D=3 pure supergravity, without extra fields. A noncommutative deformation of D=4, N=1 supergravity is also obtained, reducing to the usual simple ...
Aschieri, Paolo, Castellani, Leonardo
openaire   +4 more sources

d‐Erythrose [PDF]

open access: yesBerichte der deutschen chemischen Gesellschaft, 1899
n ...
openaire   +2 more sources

Energy Flexibility Management Based on Predictive Dispatch Model of Domestic Energy Management System

open access: yesEnergies, 2017
This paper proposes a predictive dispatch model to manage energy flexibility in the domestic energy system. Electric Vehicles (EV), batteries and shiftable loads are devices that provide energy flexibility in the proposed system.
Amin Shokri Gazafroudi   +5 more
doaj   +1 more source

Genetic and Transgenic Reagents for Drosophila simulans , D. mauritiana , D. yakuba , D. santomea , and D. virilis

open access: yesG3 Genes|Genomes|Genetics, 2017
Abstract Species of the Drosophila melanogaster species subgroup, including the species D. simulans, D. mauritiana, D. yakuba, and D. santomea, have long served as model systems for studying evolution. However, studies in these species have been limited by a paucity of genetic and transgenic reagents. Here, we describe a collection of
David L Stern   +9 more
openaire   +1 more source

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