Results 111 to 120 of about 13,959 (235)

The Application of Headspace: Solid-Phase Microextraction (HS-SPME) Coupled with Gas Chromatography/Mass Spectrometry (GC/MS) for the Characterization of Polymers [PDF]

open access: yes, 2017
Solid-Phase Microextraction (SPME) is a very simple and efficient, solventless sample preparation method, invented by Pawliszyn and coworkers at the University of Waterloo (Canada) in 1989.
Kusch, Peter (Dr.)
core  

Improved epoxy resin for constructing cryogenic filament-wound pressure vessels [PDF]

open access: yes, 1971
Mechanical properties of new resin at cryogenic temperatures are substantially improved over similar composite structures utilizing conventional resins, while properties at ambient temperature are identical to conventional resin ...
Molho, R., Soffer, L. M.
core   +1 more source

Challenges and opportunities in piezoelectric polymers: Effect of oriented amorphous fraction in ferroelectric semicrystalline polymers

open access: yesResponsive Materials
Despite extensive research on piezoelectric polymers since the discovery of piezoelectric poly(vinylidene fluoride) (PVDF) in 1969, the fundamental physics of polymer piezoelectricity has remained elusive.
Guanchun Rui   +7 more
doaj   +1 more source

Immunotoxic, genotoxic, and endocrine disrupting impacts of polyamide microplastic particles and chemicals

open access: yesEnvironment International
Due to their exceptional properties and cost effectiveness, polyamides or nylons have emerged as widely used materials, revolutionizing diverse industries, including industrial 3D printing or additive manufacturing (AM).
Andi Alijagic   +11 more
doaj   +1 more source

Frictional Behavior of Nylons

open access: bronze, 1978
Masaki Shimbo   +3 more
openalex   +2 more sources

Aflatoxin (M1 and B1) Contamination of Locally Repacked Milk Powder in South-Western Nigeria

open access: yesSokoto Journal of Medical Laboratory Science, 2017
Aflatoxins are toxic fungal metabolites found in foods and feeds. When mammals eat aflatoxin B1 (AFB1)-contaminated foods/feeds, they metabolize the toxin and excrete aflatoxin M1 (AFM1) in milk.
Oyeyipo, O.O., ⃰ Oyeyipo, F.M. and Ayah, I.R.
doaj  

Microplastic contamination in rivers: a survey from the Nan River, Thailand

open access: yesThe Lancet Planetary Health
Background: Since the 1970s, microplastic contamination has been discovered in various environments. These emerging pollutants threaten water quality and freshwater ecosystems. We aimed to assess microplastic contamination in the Nan River by quantifying
Kewalin Kongkamee, BSc   +5 more
doaj   +1 more source

Barnes Hospital Record [PDF]

open access: yes, 1951
https://digitalcommons.wustl.edu/bjc_barnes_record/1056/thumbnail ...

core   +1 more source

Thermophysical and chemical characterization of charring ablative materials Final report [PDF]

open access: yes
Thermophysical and chemical properties of charring ablative ...
Deem, H. W.   +5 more
core   +1 more source

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