Results 101 to 110 of about 687,001 (274)

Source apportionment and transport of pollutants within the South African paper recycling chain

open access: yesSouth African Journal of Science
Recycled paper is a valuable commodity that forms an intrinsic part of promoting sustainable resource utilisation. In this study, we aimed to investigate the possible sources and transport of semi-volatile organic pollutants in paper grades used in the ...
Nondumiso N. Mofokeng   +2 more
doaj   +1 more source

Identification des hydrocarbures polyaromatiques par chromatographie sur papier et spectrofluométrie Identifying Polyaromatic Hydrocarbons by Paper Chromatography and Spectrofluorimetry

open access: yesOil & Gas Science and Technology, 2006
L'utilisation de la spectrofluorimétrie comme méthode d'analyse des hydrocarbures polynucléaires a été envisagée sur une fraction polyaromatique d'extraits de vase marine.
Castex H.
doaj   +1 more source

Isolation and Identification of Fenolic Acid in Katu Leaves (Sauropus Androgynus (L.) Merr. )

open access: yesMakara Journal of Health Research, 2010
To improve traditional drugs in changing to fitofarmaka studies should be conducted on the chemical content of plants used as drugs. In this study, fenolic acid compounds in katu leaves, which are used for traditional medicine, were isolated and ...
Sri Harsodjo Wijono Soewandi
doaj   +1 more source

Photothermal Macroporous Lignin Cryogels for Off‐Grid, Continuous Atmospheric Water Collection via Interlayer Heat Recovery

open access: yesAdvanced Functional Materials, EarlyView.
Photothermal, macroporous lignin‐based cryogels are engineered to convert sunlight into low‐grade heat. Integrated as stacked beds in a drum‐type device, a thin copper interlayer transfers waste heat between beds, enabling interlayer heat recovery and continuous solar cycling.
Jie Yan   +8 more
wiley   +1 more source

PRELIVE: A Framework for Predicting Lipid Nanoparticles In Vivo Efficacy and Reducing Reliance on Animal Testing

open access: yesAdvanced Functional Materials, EarlyView.
PREdicting LNP In Vivo Efficacy (PRELIVE) framework enables the prediction of lipid nanoparticle (LNPs) organ‐specific delivery through dual modeling approaches. Composition‐based models using formulation parameters and protein corona‐based models using biological fingerprints both achieve high predictive accuracy across multiple organs.
Belal I. Hanafy   +3 more
wiley   +1 more source

Methanol Equilibrium Curves of Power Transformer Oil–Paper Insulation

open access: yesEnergies
To eliminate the problem of the aging of cellulose insulation in the manufacturing stage, a new drying method is being developed based on the use of methanol vapors.
Piotr Przybylek
doaj   +1 more source

Mimicking Block Copolymer Self‐Assembly with One‐Pot Synthesized Polyphosphoester Gradient Copolymers

open access: yesAdvanced Functional Materials, EarlyView.
Degradable Polyphosphoester (PPE) gradient copolymers (GCPs) are synthesized via one‐pot copolymerization. We show that GCPs self‐assemble into nanostructures like polymersomes, effectively mimicking the behavior of traditional BCPs. The gradient strength is key, with softer gradients favoring micelles.
Suna Azhdari   +7 more
wiley   +1 more source

Separation of whey proteins for chromatography liquid

open access: yesScientia Agropecuaria, 2010
This paper describes and compares three chromatographic methods for the analysis and quantification of most abundant proteins in cheese whey, -lactalbumin and -lactoglobulin. The methods were: Reverse-phase high performance liquid chromatography, anion
Abraham D. Giraldo Zuñiga   +3 more
doaj   +1 more source

Using Long‐Chain Polymechanophores to Explore the Differences in Mechanoactivation During Nozzle Flow and Ultrasonication

open access: yesAdvanced Functional Materials, EarlyView.
Flow through a nozzle is a common component of most fluid‐based polymer processing techniques such as spray drying, inkjet printing, extrusion. An ultrahigh molecular weight multi‐mechanophore system is used to probe the differences in the distribution of mechanical activation observed between nozzle flow and ultrasonication; the gold standard ...
Niamh Willis‐Fox   +4 more
wiley   +1 more source

Quantitative determination of Sugars by paper-Chromatography [PDF]

open access: yes, 1953
We measured the Rf values of the Glucose, Fructose, Maltose, Lactose and Sucrose by paper-chromatography. The quantity of the Sugars on the filter paper has been determined by means of A photo-electric-Calorimetry, the accuracy being about 95% of the ...
神田 睦夫, 野路 末吉
core   +1 more source

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