Results 21 to 30 of about 164,879 (307)

A comparison between the morphology of semicrystalline polymer blends of poly(ε-caprolactone)/poly(vinyl methyl ether) and poly(ε-caprolactone)/(styrene-acrylonitrile) [PDF]

open access: yes, 1994
The morphology of polymer blends of poly(ε-caprolactone) (PCL) and poly(vinyl methyl ether) (PVME) is compared with that of PCL and a random copolymer of styrene and acrylonitrile (SAN).
Brinke, G. ten   +11 more
core   +2 more sources

A Question of Faith: An Investigation of Suggested Racial Ethnonyms for Enumerating US American Residents of Muslim, Middle Eastern, and/or Arab Descent on the US Census

open access: yesNames, 2013
In 1790, the American government ratified the first official census of the nation’s population. Since then, the US Census has been taken continuously every ten years and has become indispensable for the equitable distribution of rights and resources ...
I M Nick
doaj   +1 more source

Morphological, Mechanical And Thermal Properties Of Amorphous Copolyester/Polyoxymethylene Blends [TA455.P58 L213 2005 f rb]. [PDF]

open access: yes, 2005
Kajian terhadap gaulan kopoliester amorfus/polioksimetilena (POM) yang telah dilaksanakan adalah terdiri daripada dua bahagian yang utama.
Kok Loon, Lam
core   +1 more source

Blends in Maple

open access: yes, 2021
A blend of two Taylor series for the same smooth real- or complex-valued function of a single variable can be useful for approximation. We use an explicit formula for a two-point Hermite interpolational polynomial to construct such blends. We show a robust Maple implementation that can stably and efficiently evaluate blends using linear-cost Horner ...
Robert M. Corless, Erik J. Postma
openaire   +3 more sources

Reusing Surlyn® Ionomer Scraps in LDPE Blends: Mechanical and Thermal Properties

open access: yesMaterials Research, 2023
This study aimed to evaluate the possibility of reusing industrial scraps of Surlyn® ionomer by obtaining blends with Low-Density Polyethylene (LDPE). Blends of LDPE and Surlyn® scraps were obtained by extrusion with compositions ranging from 25 to 75 wt%
Matheus F. Barbosa   +1 more
doaj   +1 more source

Effect of Cross-Linkers on the Processing of Lignin/Polyamide Precursors for Carbon Fibres

open access: yesFibers, 2023
This work reports the use of cross-linkers in bio-based blends from hydroxypropyl-modified lignin (TcC) and a bio-based polyamide (PA1010) for possible use as carbon fibre precursors, which, while minimising their effects on melt processing into ...
Baljinder K. Kandola   +3 more
doaj   +1 more source

Investigation of the Effect of Biodiesel Blends on Fuel Injection Pumps based on Vibration and Pressure Measurements [PDF]

open access: yes
Amongst alternative fuels for diesel-engine application, biodiesel is very attractive because it is biodegradable, an environmentally-friendly and sustainable source that can meet future energy demands.
Tie, Wang   +5 more
core   +3 more sources

Comparison of Phase Separation and Membrane Formation Behavior of Novel Amphiphilic Block Copolymers for Anti-Fouling Improvement of Ultrafiltration Membranes

open access: yesMembranes
The comparison of the ability of poly(phenylene sulfone) (PPSU), a recently introduced alternative membrane polymer, with established poly(ether sulfone) (PESU), both in combination with tailored amphiphilic block copolymer additives to improve ...
Inga Frost   +2 more
doaj   +1 more source

Evaluation of the types of starch for preparation of LDPE/starch blends

open access: yesBrazilian Archives of Biology and Technology, 2007
This study evaluated in relation the growth, and the amylolytic activity of mixed and isolated cultures of Phanerochaete chrysosporium and Talaromyces wortmanni on different types of starch.
Glória Maria Vinhas   +4 more
doaj   +1 more source

LHV Predication Models and LHV Effect on the Performance of CI Engine Running with Biodiesel Blends [PDF]

open access: yes, 2013
The heating value of fuel is one of its most important physical properties, and is used for the design and numerical simulation of combustion processes within internal combustion (IC) engines. Recently, there has been a significant increase in the use of
Gu, Fengshou   +7 more
core   +1 more source

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