Results 21 to 30 of about 834,750 (329)

Influência da embalagem na vida útil de presuntos fatiados Packing influence on the shelf life of sliced ham

open access: yesCiência e Agrotecnologia, 2007
Visou-se com este trabalho, comparar a vida útil de presunto fatiado sem capa de gordura (condicionadas à temperatura entre -1 e 4ºC), usando os tratamentos: sistema de embalagem a vácuo (EV) e sistema de embalagem com atmosfera modificada (AM) (50% de ...
Maria Cristina Bressan   +5 more
doaj   +1 more source

Influence of xylene on the dielectric response of an organoclay-containing nanocomposite

open access: yesIET Nanodielectrics, 2020
The dielectric effect, investigated using dielectric spectroscopy and DC dielectric breakdown strength measurements, of introducing xylene into a composite system containing polyethylene, a co-polymer of ethylene and vinyl acetate and an organoclay can ...
Allison V. Shaw   +3 more
doaj   +1 more source

Polyethylene Glycol Camouflaged Earthworm Hemoglobin. [PDF]

open access: yes, 2017
Nearly 21 million components of blood and whole blood and transfused annually in the United States, while on average only 13.6 million units of blood are donated. As the demand for Red Blood Cells (RBCs) continues to increase due to the aging population,
Cabrales, Pedro   +8 more
core   +3 more sources

Research on the Migration and Transformation Behavior of Microplastics in Groundwater Systems and Their Ecological Health Risks [PDF]

open access: yesE3S Web of Conferences
A comprehensive approach integrating laboratory column experiments, field monitoring, and adsorption-desorption studies was employed to investigate the migration mechanisms of microplastics (MPs) in groundwater systems and their associated compound ...
Xu Haotian
doaj   +1 more source

The Living ROMP of trans-Cyclooctene [PDF]

open access: yes, 2009
The living ring-opening metathesis polymerization (ROMP) of trans-cyclooctene (tCO) was investigated. ROMP of tCO in the presence of PPh_3 in THF leads to the formation of narrowly dispersed polycyclooctene (PCO).
Conrad, Rosemary M.   +2 more
core   +2 more sources

Functionalization of waterborne polyurethane with rosin and epoxidized soybean oil for high-performance, UV-shielding, and hydrophobic biobased films and cotton coatings

open access: yesIndustrial Crops and Products
The development of high-performance waterborne polyurethane (WPU) from biomass materials represents a significant issue in green industry. In this work, a rosin-based epoxidized soybean oil polyol (RE) was synthesized via a ring-opening reaction between ...
Tao Zhang   +13 more
doaj   +1 more source

Numerical modeling transient flow in plastic pipes [PDF]

open access: yesMATEC Web of Conferences, 2019
We present a numerical code for calculating transient flow in plastic pipes, especially in the polyethylene pipe, to analysis effect of material viscoelasticity on water hammer phenomena.
Achak N., Bahrar B., Gueraoui K.
doaj   +1 more source

اثر اصلاح کنند ه ها روی فعالیت کاتالیزورهای زیگلر-ناتا و خواص نهایی پلیمر در پلیمرشدن اولفین ها [PDF]

open access: yesBaspārish, 2015
فعالیت کاتالیزور از مهم ترین پارامترها در فرایندهای پلیمرشدن است. برای یک سامانه کاتالیزوریفعالیت ممکن است به شرایط پلیمرشدن از قبیل دما و فشار وابسته باشد.
رضا بازوند   +3 more
doaj   +1 more source

Rapid, 5 min, low temperature aqueous platinization for plastic substrates for dye-sensitized solar cells [PDF]

open access: yes, 2019
This paper reports a rapid (5 min), low temperature (120 C) method to platinize the counter electrodes of dye-sensitized solar cell (DSC) devices. This new method uses aqueous solutions and is based on chemical bath deposition of an activating Pd ...
Anthony, RVE   +6 more
core   +2 more sources

Polyethylene

open access: yesSoil Science, 1958
Bibliographical footnotes. ; Mode of access: Internet.
openaire   +2 more sources

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