Results 21 to 30 of about 363,556 (256)
Успехи физики металлов, 2003 Nanostructural materials, which are formed in structural phase transformations within the metal surface layers due to the friction in active mediums with active chemical elements and additional external influence of current pulses, are investigated by ...
V. V. Gors’ky, O. M. Grypachevs’ky, V. V. Tykhonovych, V. M. Uvarov
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Nature Communications, 2023 The instability of the surface chemistry in transition metal oxide perovskites is the main factor hindering the long-term durability of oxygen electrodes in solid oxide electrochemical cells.
Sanaz Koohfar +8 more
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Isolation of Responsive Elements of Planar Multi-Element Photodiodes
East European Journal of Physics, 2023 In the mass production of multi-element silicon p-i-n photodiodes, the problem of systematic rejection of products due to a decrease in the insulation resistance between the active elements of photodetectors has been revealed. The purpose of this work is
Mykola S. Kukurudziak
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steel research international, 2022 Within the framework of the welding of steel components in pressurized water reactors, the optimization of the weld pool penetration is a major issue. The thermal‐hydraulics of the molten steel pool can be driven by Marangoni flows at the free surface.
Delacroix, Jules +6 more
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The Grain-size Patchiness of Braided Gravel-Bed Streams – example of the Urumqi River (northeast Tian Shan, China) [PDF]
Advances in Geosciences, 2014 In gravel-bed rivers, sediments are often sorted into patches of different grain-sizes, but in braided streams, the link between this sorting and the channel morpho-sedimentary elements is still unclear. In this study, the size of the bed sediment in the
L. Guerit +9 more
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Resistance of concrete and expanded clay concrete under periodic external influences
MATEC Web of Conferences, 2018 The purpose of the work is to increase resistance of concrete in conditions of multiple freezing-thawing and wetting-drying cycles. An important property of concrete is its ability to adapt to the periodical effect of external factors by self ...
Vyrovoy Valery +3 more
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Surface-active element transport and its effect on liquid metal flow in laser-assisted additive manufacturing [PDF]
International Communications in Heat and Mass Transfer, 2017 Abstract During laser-assisted additive manufacturing, the transport phenomena, solidification behavior, and melt pool geometry are affected by base-metal sulfur content and oxygen present in the atmosphere. The role of these surface-active elements during metal-based additive manufacturing is not well understood. In this study, the mass transport of
Zhengtao Gan +3 more
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Clinical Insights Into Hypercalcemia of Malignancy in Childhood
Pediatric Blood &Cancer, EarlyView.ABSTRACT Hypercalcemia of malignancy (HCM) is a rare but life‐threatening metabolic emergency in children that occurs in less than 1% of pediatric cancer cases, with a reported incidence ranging from 0.4% to 1.0% across different studies. While it is observed in 10%–20% of adult malignancies, pediatric HCM remains relatively uncommon.
Hüseyin Anıl Korkmaz
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Materials & Design, 2023 As one of the important ways to improve surface properties of Ti alloys, the boride layer prepared by the pack boriding is closely related to the growth and morphology of TiB whiskers in the boride layer, whereas the growth and morphology of TiB whiskers
Ancang Yang +6 more
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Effects of surface active elements on weld pool formation using TIG arcs
Welding International, 2005 Abstract A-TIG welding is the welding process where powdered activating flux (welding facilitating agent) with oxides such as TiO2 and Cr2O3 as the main constituents is dissolved by volatile solvent, such as methyl ethyl ketone and acetone and is applied using a brush, in advance, on the base metal surface which is then subjected to TIG welding.1 A ...
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