Results 61 to 70 of about 2,810 (190)

Characteristics, properties and limitations of per‐ or polyfluoroalkyl substances (PFASs) and fluoropolymers

open access: yesPolymer International, EarlyView.
An overview and categorization of man‐made per‐ or polyfluoroalkyl substances (PFASs) including low‐molar‐mass and high‐molar‐mass fluorochemicals, and their international regulations is presented. Though certain PFASs are toxic, bioaccumulative and cross the human cellular membranes, others, such as fluoropolymers, are safe, reliable and involved in ...
Bruno Améduri
wiley   +1 more source

The characteristics of squall lines in the Southeast Asia region

open access: yesQuarterly Journal of the Royal Meteorological Society, EarlyView.
Squall lines over the Maritime Continent were analysed using 20 years of IMERG GPM data and classified into four regional clusters. Significant regional differences were found in their size, intensity, lifespan, and propagation. Nighttime squall lines are primarily driven by the convergence of opposing offshore flows and the convergence of monsoonal ...
Jeong‐Yik Diong   +3 more
wiley   +1 more source

Comparative Analysis of Supercritical Carbon Dioxide and Subcritical Water Extraction for Sabah Coffea Canephora

open access: yesJournal of Engineering and Sustainable Development
This work provides a thorough comparative analysis of the green extraction process, viz. supercritical carbon dioxide and subcritical water extraction methods for Sabah Coffea canephora.
Sarah Aisyah Khurun Hizar   +12 more
doaj   +1 more source

Valorization of Cork Using Subcritical Water

open access: yesMolecules, 2020
Granulated cork was submitted to subcritical water extraction/hydrolysis in a semi-continuous reactor at temperatures in the range of 120–200 °C and with a constant pressure of 100 bar. The influence of temperature on the composition of the cork extracts
Mónica Cunha   +4 more
doaj   +1 more source

Mapping River Bed Topography in Whitewater Rapids Using Bathymetric LiDAR

open access: yesRiver Research and Applications, EarlyView.
ABSTRACT Bathymetric LiDAR captures river topography efficiently for clear and shallow water, but for mountain rivers, whitewater rapids still pose challenges. This study proposes a novel method to enable the extraction of bottom returns specifically in turbulent whitewater sections.
Jan Rhomberg‐Kauert   +5 more
wiley   +1 more source

Subcritical Water Extraction of Lycopene from Tomato Waste

open access: yesDEStech Transactions on Engineering and Technology Research, 2017
Subcritical water extraction (SWE) of lycopene from tomato waste and antioxidant activities was studied with response surface design. The optimal extracting conditions were identified as follows: 10g tomato waste sample with 73.8 ml double-distilled water, extraction temperature 192.01°C, and extraction time 15.80 min.
Ling-li ZHU   +3 more
openaire   +2 more sources

Software to Support Remote Sensing of River Discharge Based on Critical Flow Theory

open access: yesRiver Research and Applications, EarlyView.
ABSTRACT Water resource management requires accurate observations of streamflow but standard field methods for measuring river discharge (Q$$ Q $$) can be costly and hazardous for equipment and personnel. Remote sensing has become a viable alternative, but many image‐based techniques require field data for calibration, and depth and velocity can seldom
Carl J. Legleiter, Inhyeok Bae
wiley   +1 more source

Subcritical Water Extraction of Barley to Produce a Functional Drink [PDF]

open access: yesBioscience, Biotechnology, and Biochemistry, 2008
We investigated the effects of various temperatures between 150 and 280 degrees C during subcritical water extraction of barley to make a barley tea-like extract, a popular summer beverage in Japan. Each barley extract was analyzed for sensory properties, antioxidative activity, and the amount of residual matter, which revealed 205 degrees C to be the ...
Aditya, Kulkarni   +3 more
openaire   +2 more sources

Stratigraphic evidence for modern‐like glacier extents in south‐central Alaska within the last glacial period (MIS 3)

open access: yesBoreas, EarlyView.
The last (Wisconsinan) glacial period was punctuated in North America by two glacial maxima, known as the Early and Late Wisconsinan glaciations. In Alaska, these maxima and their subsequent retreats have been the object of dating efforts to reconstruct local climatic events and compare them to global trends.
Bruno Belotti   +5 more
wiley   +1 more source

Optimization of Extraction Process and Neuroprotective Activities of Flavonoids from Mentha haplocalyx Briq. with Subcritical Water

open access: yesShipin gongye ke-ji
Objective: To optimize the subcritical water extraction process for flavonoids from Mentha haplocalyx Briq. (mint) and assess the mitigating effects of peppermint flavonoids on H2O2-induced adrenal pheochromocytoma (PC12 cell) injury in rats.
Qingqing ZHANG   +3 more
doaj   +1 more source

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