Results 51 to 60 of about 415,735 (305)

Material Culture of Volga Bulgaria in the Collection Museum of Archaeology of Tatarstan

open access: yesАрхеология евразийских степей, 2022
В статье представлен обзор части мемориальной коллекции Р.Р. Шайхутдинова, хранящейся в фондах Музея археологии РТ, которая относится к периоду существования государства Волжская Булгария и Золотой Орды (X- XV вв.).
Kuklina Anna A.
doaj   +1 more source

Phosphor-Bronze [PDF]

open access: yesScientific American, 1908
n ...
openaire   +1 more source

Mechanisms of Increasing Weld Depth during Temporal Power Modulation in High‐Power Laser Beam Welding

open access: yesAdvanced Engineering Materials, EarlyView.
Temporal power modulation increases weld depth in high‐power laser beam welding of dissimilar round bars by nearly 20% compared to same average continuously welded welding power. The mechanism of action also applies to sheet welding and depends on the inertia of keyhole depth for the modulated laser beam power.
Jan Grajczak   +7 more
wiley   +1 more source

Investigation of Diffusible Hydrogen Concentration in Gas Metal Arc Brazing by Carrier Gas Hot Extraction Method Referring to ISO 3690

open access: yesHydrogen, 2022
Arc brazing is an alternative joining technology well-suited for processing thermally sensitive materials and to produce mixed material connections.
Oliver Brätz   +3 more
doaj   +1 more source

Prehistoric Bronze [PDF]

open access: yesScientific American, 1898
n ...
openaire   +1 more source

Lost Wax Method Bronze Casting [PDF]

open access: yes, 2012
Large scale bronze casting is a work intensive process that requires adequately equipped studio space, time, and a set of highly refined skills to complete the eight stages of the process.
Isaak, Joel
core  

Comparative Wear and Friction Analysis of Sliding Surface Materials for Hydrostatic Bearing under Oil Supply Failure Conditions

open access: yesAdvanced Engineering Materials, EarlyView.
Hydrostatic bearings excel in high‐precision applications, but their performance hinges on a continuous external supply. This study evaluates various material combinations for sliding surfaces to mitigate damage during supply failures or misalignment and to discover the most effective materials identified for enhancing the reliability and efficiency of
Michal Michalec   +6 more
wiley   +1 more source

Bronzing liquid [PDF]

open access: yesJournal of the Franklin Institute, 1880
n ...
openaire   +2 more sources

The el-Atan Tomb: an Early Bronze IVB female burial in the heart of Bethlehem [PDF]

open access: yes, 2017
An Early Bronze IVB tomb was discovered by the MOTA-DACH on June 2009 in the city of Bethlehem, nearby the Milk Grotto. Its architectural features, burials and associated funerary equipment are here considered and compared with those of other Early ...
Montanari, Daria, Nigro, Lorenzo
core  

An Examination of Aerosol Jet‐Printed Surface Roughness and its Impact on the Performance of High‐Frequency Electronics

open access: yesAdvanced Engineering Materials, EarlyView.
This study explores aerosol jet‐printed (AJP) surface roughness, its effects on the performance of microwave electronics, and its process contributors. First, an electromagnetic model is vetted for AJP's unique roughness signature. Simulations are built which show process‐induced roughness is as significant as conductor resistivity in driving microwave
Christopher Areias, Alkim Akyurtlu
wiley   +1 more source

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