Results 11 to 20 of about 705,389 (273)

Lightweight vitreous carbon material: approaches to making open-pore cellular structure [PDF]

open access: yesINCAS Bulletin, 2019
Cellular vitreous carbons with the open-pore structure are attractive materials in some aerospace applications, such as the super-lightweight structural materials or sandwich core materials in the thermal protection systems.
Oleg SMORYGO   +4 more
doaj   +1 more source

Effect of reaction sintering modes on the structure and properties of carbide ceramics

open access: yesВесці Нацыянальнай акадэміі навук Беларусі: Серыя фізіка-тэхнічных навук, 2019
Experimental studies of the structure, phase composition, physical and mechanical properties of the reaction-sintered ceramics based on silicon carbide and boron obtained by reaction sintering have been performed. It has been shown that the properties of
E. V. Zvonarev   +4 more
doaj   +1 more source

Writing Londinium with the Five Senses

open access: yesTheoretical Roman Archaeology Journal, 2023
In this paper, children's author Caroline Lawrence shares specific examples of how she gets inspiration for her historical novels by using the five senses. Based on a practical session during a conference on sensory archaeology, she writes about visiting
Caroline Day Lawrence
doaj   +2 more sources

Influence of heat treatment on the structure and properties of pseudo-alloy steel – copper alloy obtained by infiltration

open access: yesВесці Нацыянальнай акадэміі навук Беларусі: Серыя фізіка-тэхнічных навук, 2022
The paper presents the results of studies of the effect of heat treatment regimes on changes in the structure and properties of steel-copper alloy pseudo-alloys obtained by infiltration.
L. N. Dyachkova
doaj   +1 more source

The Mosaics of the Roman Villa of São Simão, Penela, Portugal

open access: yesJournal of Mosaic Research, 2017
The Roman Villa of São Simão, part of the ancient municipium of Conímbriga, in the province of Lusitania, is located in the area correspondent to the churchyard, public road and lands adjacent to the Chapel of Our Lady of Grace, in São Simão, within the ...
Sónia VICENTE, Ana Luísa MENDES
doaj   +1 more source

زخرفة الباربوتين على ستة أواني فخارية رومانية مصرية لم تنشر من قبل Barbotine Decoration On Six Unpublished Egyptian- Roman Pottery [PDF]

open access: yesJournal of General Union of Arab Archaeologists, 2021
زخرفة الباربوتين Barbotine هي نوع من أنواع الزخارف البارزة ، ظهرت على العديد من الأواني الفخارية وعلى اواني البرونز ، وکانت بداية ظهورها خارج مصر منذ العصر الحجري ثم العصر المينوي المبکر والمتوسط ثم العصر الروماني ، بينما داخل مصر اقتصر ظهورها على العصر ...
Aml Abdelsamad Abdelmonem Hashad
doaj   +1 more source

States of emergency

open access: yesKoers : Bulletin for Christian Scholarship, 1989
Noodtoestand. Nood toestand word deesdae as so alle daags en gemeenplasig beskou dat daar nie werklik sprake van diepgaande gesprekvoering en besinning oor die bestaan, inhoud en voortsetting daarvan is nie.
W. du Plessis, N. J. J. Olivier
doaj   +1 more source

Numerical and Experimental Investigation of Fretting Wear in Connecting Rod Big-End Bearings of Nuclear Emergency Diesel Generators

open access: yesLubricants
The operational reliability of Emergency Diesel Generators (EDGs) is paramount for the safety of nuclear power plants. This study investigates the fretting wear mechanism on the non-working back-face of connecting rod big-end bearings—a critical failure ...
Shuai Zu   +7 more
doaj   +1 more source

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