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Displaying 551 - 575 of 4265

Broadband Dielectric Spectroscopic Detection of Ethanol: A Side-by-Side Comparison of ZnO and HKUST-1 MOFs as Sensing Media

June 25, 2022
Author(s)
Papa Amoah, Pentao Lin, Zeinab Mohammed Hassan, Rhonda Franklin, Engelbert Redel, Helmut Baumgart, Yaw S. Obeng
Changes in the chemo-electrical intrinsic properties of metal-oxide materials (MO) are commonly used as the basis of gas sensors. The most common gas sensors are based on chemically induced changes in electrical resistivity which necessarily involve making

Properties of Refrigerants

June 22, 2022
Author(s)
Marcia L. Huber, Mark O. McLinden
This table gives physical properties, safe exposure limits, GWP and ODP for compounds that have been used as working fluids in traditional refrigeration systems or are under consideration as replacements in newer systems. Some are also used as solvents

Major to Trace Element Imaging and Analysis of Iron Age Glasses Using Stage Scanning in The Analytical Dual Beam Microscope (Tandem)

June 16, 2022
Author(s)
Edward P. Vicenzi, Thomas Lam, Jamie Weaver, Andrew Herzing, John McCloy, Rolf Sjoblom, Carolyn Pearce
Dark and clear silicate glasses formed during an iron age vitrification event ≈ 1500 years ago at the Broborg hillfort near Uppsala, Sweden have been analyzed using a scanning electron microscope equipped with a micro-X-ray fluorescence (μXRF) spectrometer

Engineering 3D Printed Scaffolds with Tunable Hydroxyapatite

June 15, 2022
Author(s)
Yoontae Kim, Eun Jin Lee, Anthony Kotula, Shozo Takagi, Laurence C. Chow, Styliani Alimperti
Bone grafting is a surgical procedure to bone repair due to trauma or diseases in the craniofacial and dental area. Current limitations of autogenous and allogeneic grafts are often associated with reduced host-graft integration due to geometrical confor

Turning Molecular Springs into Nano-Shock Absorbers: The Effect of Macroscopic Morphology and Crystal Size on the Dynamic Hysteresis of Water Intrusion-Extrusion into-from Hydrophobic Nanopores

June 15, 2022
Author(s)
Pawel Zajdel, David Madden, Robin Babu, Diego Mirani, Nikolay Tsyrin, Luis Bartolome, Eder Amayuelas, David Fairen-Jimenez, Alexander Lowe, Miroslaw Chorazewski, Juscelino Leao, Craig Brown, Markus Bleuel, Victor Stoudenets, Maria Echeverria, Francisco Bonilla, Giulia Grancini, Simone Meloni, Yaroslav Grosu
Controlling the pressure at which liquids intrude (wet) and extrude (dry) into/from nanopore is of paramount importance for a broad range of applications, such as energy conversion, catalysis, chromatography, separation, ionic channels, and many more. To

Evidence that gecko setae are coated with an ordered nanometer-thin lipid film

June 9, 2022
Author(s)
Cherno Jaye, Daniel A. Fischer, Mette Rasmussen, Katinka Holler, Joe Baio, Stanislav Gorb, Tobias Weidner
Motivated by the fascination of gecko adhesion based on the fibrous setae at the tips of their toe pads and their potential for biomimetic applications, the adhesion mechanism has been studied in detail. While the mechanism has been shown to be based on
Displaying 551 - 575 of 4265
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