Results 61 to 70 of about 87,636 (284)

Capillary pinching in a pinched microchannel [PDF]

open access: yes, 2007
We report a study of the capillary pinching of a gas bubble by a wetting liquid inside a pinched channel. The capillary pinching induces very reproducible bubbling, at a very well-defined frequency.
Amyot, Olivier, Plouraboué, Franck
core   +2 more sources

Electroactive Metal–Organic Frameworks for Electrocatalysis

open access: yesAdvanced Functional Materials, EarlyView.
Electrocatalysis is crucial in sustainable energy conversion as it enables efficient chemical transformations. The review discusses how metal–organic frameworks can revolutionize this field by offering tailorable structures and active site tunability, enabling efficient and selective electrocatalytic processes.
Irena Senkovska   +7 more
wiley   +1 more source

Molten Dripping of Crosslinked Polyethylene Cable Insulation Under Electrical Overload

open access: yesFire
Under electrical overload conditions, the molten dripping of thermoplastic wire insulation materials—particularly crosslinked polyethylene (XLPE)—poses a severe fire hazard and significantly complicates fire prevention and control.
Shu Zhang, Yang Li, Qingwen Lin
doaj   +1 more source

GLOBE Cave Protocol Field Guide: Comparing Surface and Subterranean Environments [PDF]

open access: yes, 2003
The GLOBE Cave Protocol Field Guide utilizes existing GLOBE protocols to explore an extreme environment. Caves provide an opportunity to utilize GLOBE protocols to investigate underground environments and compare them to surface environments. Outside the
The GLOBE Program, University Corporation for Atmospheric Research (UCAR)
core  

Memristive Sisyphus circuit for clock signal generation

open access: yes, 2016
Frequency generators are widely used in electronics. Here, we report the design and experimental realization of a memristive frequency generator employing a unique combination of only digital logic gates, a single-supply voltage and a realistic threshold-
Nori, Franco   +2 more
core   +2 more sources

Inactivating SARS‐CoV‐2 Virus with MOF‐Composites as Smart Face Masks

open access: yesAdvanced Functional Materials, EarlyView.
In situ preparation and functionalization of MOF@Cotton fabrics as smart face masks for the immobilization of proteins and inactivation viruses, such as SARS‐CoV‐2. Abstract The significant impact of the SARS‐CoV‐2 (COVID‐19) pandemic outbreak on people's lives has highlighted the urgent need for effective personal protective equipment.
Romy Ettlinger   +9 more
wiley   +1 more source

Drip Infusion Cholangiography [PDF]

open access: yesProceedings of the Royal Society of Medicine, 1968
The author has investigated 25 patients with drip infusion cholangiography using 250 ml. of 30% dextrose and 60 ml. of Biligrafin Forte administered intravenously over the course of one hour. The results are compared with 25 patients investigated by conventional intravenous cholangiography with 20 ml. of the same contrast medium. The author concludes
openaire   +5 more sources

Effects of Oil Drops and the Charcoal’s Proximate Composition on the Air Pollution Emitted from Charcoal Barbecues

open access: yesAerosol and Air Quality Research, 2020
This research investigated the emission rates (ERs) and emission factors (EFs) of air pollutants generated from charcoal barbecues and the influence of temperature, the charcoal’s proximate composition (moisture, volatile matter, fixed carbon, and ash ...
Kuo-Pin Yu   +5 more
doaj   +1 more source

Unusual Swelling Behavior of Hydrogels Modified with Spiropyran as Appendage or Crosslinker

open access: yesAdvanced Functional Materials, EarlyView.
Not so innocent after all—spiropyran crosslinkers in methylenebisacrylamide‐crosslinked poly(acrylamide‐co‐acrylic acid) hydrogels increase crosslinking density, but also, counterintuitively, increase swelling. Charge complexation, cooperative chemo‐mechanical effects, and aggregation may explain these observations.
Michael M. Lerch   +7 more
wiley   +1 more source

Preparation and Characterization of Alginate Beads by Drop Weight

open access: yesInternational Journal of Technology, 2014
The preparation and characterization of macro alginate beads are always associated with appropriate techniques involving precise measurement of shape, size, volume and density of the products.
Mohamad Anuar Kamaruddin   +2 more
doaj   +1 more source

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