Results 91 to 100 of about 121,187 (232)

Polyaniline as a dual flame retardant and electrostatic dissipative additive in polyethylene nanocomposites

open access: yesJournal of Vinyl and Additive Technology, Volume 31, Issue 2, Page 339-355, March 2025.
Effecft of co‐doping polyaniline with phosphoric acid and phytic acid on the heat release rate of polyethylene. Abstract Polyolefins, such as polyethylene (PE), are highly flammable and electrically insulative, limiting their applicability. The study explored the flame‐retardancy and electrical conductivity of PE/polyaniline (PE/PANI) nanocomposites ...
Akeem Adisa   +4 more
wiley   +1 more source

Special Libraries, May-June 1958 [PDF]

open access: yes, 1958
Volume 49, Issue 5https://scholarworks.sjsu.edu/sla_sl_1958/1004/thumbnail ...
Special Libraries Association
core   +2 more sources

A Lesson from Past Energy Crises [PDF]

open access: yes, 2017
open1noAfter dealing with the very recent history of Moore's law in the previous issue of IEEE Industrial Electronics Magazine, I will jump far back into the past for this issue, taking the opportunity given by a present-world economic event.

core   +1 more source

Medicine for the Material World

open access: yesArchaeometry, EarlyView.
ABSTRACT It is clear that many of the inorganic materials of antiquity have been used both as medicines for human ills and also as agents in technological processes. This paper speculates that there might have been a stronger link between these two functions in the past, based on the concept of “active agents”—materials that are efficacious at curing ...
A. M. Pollard
wiley   +1 more source

Structural, Magnetic and Acetone Sensing Properties of Barium- Calcium Hexaferrite Synthesized by Sol- Gel Auto Combustion Method

open access: yesJournal of Advanced Materials in Engineering, 2020
In this research, barium calcium hexaferrite (Ba1-xCaxFe12O19 , 0≤x£1) nanoparticles were synthesized through a sol-gel combustion method. The dried gel samples were then calcined at 950ºC for 4:30h.
A. Karimian, Kalantar
doaj  

A Multi‐Analytical Approach for the Compositional Characterization and Chronological Discrimination of Benin (Nigeria) Metal Sculptures

open access: yesArchaeometry, EarlyView.
ABSTRACT This study presents a multi‐analytical archaeometric approach for the compositional characterization and chronological discrimination of Benin metal sculptures in relation to the 1897 Punitive Expedition. The methodology integrates elemental composition (XRF and ICP), stable lead isotope ratios (MC‐ICP‐MS) for alloy system characterization ...
I. Torraba   +5 more
wiley   +1 more source

Improving low-rank coal flotation using a mixture of oleic acid and dodecane as collector [PDF]

open access: yesMATEC Web of Conferences
Low-rank coals (LRC) are abundant but underutilized due to their hydrophilic nature and high oxygen content, which hinder flotation efficiency. Traditional single-collector systems often result in low recovery rates and high reagent consumption.
Baloyi Nomsa Prescilla   +2 more
doaj   +1 more source

Early Bronze Age Copper Circulation in the Guadalentín and Segura Valleys (SE Spain)

open access: yesArchaeometry, EarlyView.
ABSTRACT Identifying the sources of copper used in Early Bronze Age metalwork from south‐east Spain is key to resolving a long‐running debate concerning centralized control, or lack thereof, over El Argar society's economic organisation. This study provides the first substantial integrated programme of EDXRF and MC‐ICP‐MS analyses for copper‐base ...
Dirk Brandherm, Ignacio Montero‐Ruiz
wiley   +1 more source

Defining the geographical level of competition: a taxonomy of industry tradability

open access: yesEconomica, EarlyView.
Abstract The paper develops a taxonomy of industry tradability to define the geographical level at which competition takes place. First, it creates a novel dataset that combines production and international trade data for both goods and services industries, defined at a detailed (3‐digit) level of industry aggregation for 15 European countries.
Sara Calligaris   +4 more
wiley   +1 more source

Opportunities for plasma separation techniques in rare earth elements recycling

open access: yes, 2017
Rare earth elements recycling has been proposed to alleviate supply risks and market volatility. In this context, the potential of a new recycling pathway, namely plasma mass separation, is uncovered through the example of nedodymium - iron - boron ...
Fisch, Nathaniel J.   +2 more
core   +3 more sources

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