Results 1 to 10 of about 1,049,992 (120)

Reconstruction of the Late Bronze Age Foundry Process in Greater Poland: Analyzes and Simulations. Case Study of Hoard from Przybysław [PDF]

open access: yesArchives of Metallurgy and Materials, 2022
One of the most interesting categories of artifacts for archaeometallurgical research includes deposits of bronze items, so-called “metallurgists hoards”.
A. Garbacz-Klempka   +7 more
doaj   +1 more source

A Glimpse into Raw Material Management in the Early Iron Age: Bronze Ingots from a Production Settlement in Wicina (Western Poland) in Archaeometallurgical Research [PDF]

open access: yesArchives of Metallurgy and Materials, 2020
Assessing the level of metallurgical and foundry technology in prehistoric times requires the examination of raw material finds, including elongated ingots, which served as semi-finished products ready for further processing.
A. Garbacz-Klempka   +2 more
doaj   +1 more source

INFLUENCE OF THE CEREAL COMPONENTS REPLACEMENT WITH EXTRUDED BREAD WASTE IN THE LAYING HENS DIET ON THE NET UTILIZATION OF ENERGY AND PROTEIN [PDF]

open access: yesTrakia Journal of Sciences, 2021
Aim: Monitoring the effect of the replacement of 5 and 10% of the grain component in compound feed for laying hens with the same amount of extruded bread waste on Clarcs of energy distribution (CED)/ protein transformation (CPT)” in the eco-technical ...
S. Grigorova, D. Penkov
doaj   +1 more source

Investigation of risk factors for introduction of highly pathogenic avian influenza H5N1 virus onto table egg farms in the United States, 2022: a case–control study

open access: yesFrontiers in Veterinary Science, 2023
IntroductionThe 2022–2023 highly pathogenic avian influenza (HPAI) H5N1 outbreak in the United States (U.S.) is the most geographically extensive and costly animal health event in U.S. history.
Alice L. Green   +12 more
doaj   +1 more source

Characterization and comparison of as received and clinically retrieved Bio-active™ orthodontic archwires

open access: yesBiotechnology & Biotechnological Equipment, 2021
This study aimed to characterize and compare the latest generation multi-force Bio-active™ orthodontic archwires to determine if there is a change in their physicochemical and mechanical properties during orthodontic treatment.
Mirela Georgieva   +8 more
doaj   +1 more source

A multi-layered image format for the web with an adaptive layer selection algorithm [PDF]

open access: yesSerbian Journal of Electrical Engineering, 2017
In this paper we present a proposed multi-layered image format for use on the web. The format implements an algorithm for selecting adequate layer images depending on the image container's surroundings and size.
Tair Milan   +3 more
doaj   +1 more source

Metallurgical Slags as Traces of a 15th century Copper Smelter

open access: yesArchives of Foundry Engineering, 2017
The research focuses on assessing the metal content, mainly copper, lead, iron and also silver in metallurgical slag samples from the area where historical metallurgical industry functioned. In the smelter located in Mogiła, near Krakow (southern Poland),
Garbacz-Klempka A.   +4 more
doaj   +1 more source

The Effect of Production Parameters of Oxide Layers on Their Nanostructure, Nanomorphology, and Surface Free Energy

open access: yesApplied Sciences, 2018
Nanotechnology is currently a very promising field of materials science. One of the most recent directions of research in this field is the nanotechnology of the upper layers for applications in engineering kinematic systems.
Władysław Skoneczny   +2 more
doaj   +1 more source

Reconstruction of the Casting Technology in the Bronze Age on the Basis of Investigations and Visualisation of Casting Moulds

open access: yesArchives of Foundry Engineering, 2017
During excavation of the cremation cemetery of urnfield culture in Legnica at Spokojna Street (Lower Silesia, Poland), dated to 1100-700 BC, the largest - so far in Poland – a collection of casting moulds from the Bronze Age was discovered: three moulds ...
Garbacz-Klempka A.   +6 more
doaj   +1 more source

Characterization of Nanocrystalline NiP Alloy Coatings Electrodeposited at Various Current Densities

open access: yesIranian Journal of Materials Science and Engineering, 2021
Nickel phosphorus alloy coatings were prepared by electrodeposition route from sulfate electrolyte bath at various current densities. SEM studies reveal spherical grains covered the entire surface with uniform distribution.
Farid Lekmine   +2 more
doaj  

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