Results 81 to 90 of about 32,253 (225)

Hot bubbles of planetary nebulae with hydrogen-deficient winds - II. Analytical approximations with application to BD+30$^\circ$3639

, 2018
The first high-resolution X-ray spectroscopy of the planetary nebula BD+30$^\circ$3639 allowed to study X-ray emitting "hot bubbles" (HBs) of planetary nebulae in unprecedented detail.
Heller, René, Jacob, Ralf, Schönberner, Detlef, Steffen, Matthias   +3 more
core   +1 more source

Photooxidation of 18‐Carbon Polyunsaturated Fatty Acids to Prepare Mono‐Hydroxylated Octadecanoids

Lipids, EarlyView.
We developed a fast and simple one‐step synthetic strategy to produce mono‐hydroxylated metabolites based on the photosensitized oxidation of 18‐carbon polyunsaturated fatty acids (PUFAs). This approach could likely be extended to other PUFAs, suggesting that photosensitized oxidation could be employed to rapidly prepare hydroperoxides from multiple ...
Johanna Revol‐Cavalier, Mats Hamberg, Craig E. Wheelock   +2 more
wiley   +1 more source

Probing Strongly Coupled Chameleons with Slow Neutrons

, 2013
We consider different methods to probe chameleons with slow neutrons. Chameleon modify the potential of bouncing neutrons over a flat mirror in the terrestrial gravitational field.
Brax, Philippe, Pignol, Guillaume, Roulier, Damien   +2 more
core   +3 more sources

Exploration of the Phytochemical and Antidiabetic Properties of Teucrium polium: A Natural Asset for Type 2 Diabetes Management

ChemistryOpen, EarlyView.
Teucrium polium shows antidiabetic activity with its phytochemical composition and biological activities. The essential oil is rich in carvacrol, thymol, γ‐terpinene, and o‐cymene, while the aqueous and hydroethanolic extracts are characterized by poliumoside, verbascoside, isorhamnetin‐3‐O‐rutinoside, and apigenin‐7‐rutinoside. Antioxidant activity is
Hajar El Ouadni, Aziz Drioiche, Fadoua El Makhoukhi, Omkulthom Al kamaly, Hannou Zerkani, Smail Amalich, Imane Tagnaout, Mohamed Radi, Yahya Cherrah, Touriya Zair, Katim Alaoui   +10 more
wiley   +1 more source

Lattice Boltzmann Method Analyzing Helium Bubbles Motion in Liquid Helium

IEEE Transactions on Appiled Superconductivity, 2004
To estimate the cooling capability of liquid helium in a superconducting magnet, it is indispensable to analyze the liquid helium flow and the bubble motion. However, it is almost impossible to understand them by means of the experiment or the numerical calculation based on Navier-Stokes equations.
Y. Izumi, A. Iwamoto, Y. Tatsumi, S. Takeda, S. Nishijima   +4 more
openaire   +1 more source

Mechanical, Thermal, and Microstructural Evaluation of Bio‐Based Polyurethane Composites Reinforced With Woven Jute and Flax

Polymer Composites, EarlyView.
Graphical overview of the manufacturing and characterization of bio‐based polyurethane composites reinforced with woven jute and flax fibers produced by the VARTM process. Mechanical, thermal, and microstructural analyses reveal differences in stiffness, thermal stability, and interfacial behavior between the natural fiber composites.
Vanessa A. Santos, Kelvin M. K. Iwasaki, Felipe Ruivo Fuga, Ricardo De Medeiros   +3 more
wiley   +1 more source

Sonoluminescence: Nature's Smallest BlackBody

, 2000
The Spectrum of the light emitted by a sonoluminescing bubble is extremely well fit by the spectrum of a blackbody. Furthermore the radius of emission can be smaller than the wavelength of the light.
Baltes, Barber, C. Camara, Frenzel, G. Vazquez, Gompf, Hammer, Hansen, Heszler, Hilgenfeldt, Hiller, Hiller, Hiller, Hiller, K. Weninger, Kalensher, Maddox, Matula, McGregor, Moss, Putterman, Putterman, Rohlfing, S. Putterman, Thomas, Weninger, Wu   +26 more
core   +1 more source

Covalent Functionalization of NiFe Layered Double Hydroxides using Tris(Hydroxymethyl)Aminomethane

Small, EarlyView.
Covalent functionalization of NiFe layered double hydroxides with tris(hydroxymethyl)aminomethane enables controlled growth, enhanced structural order, and improved processability. Temporary TRIS anchoring promotes stable water‐based inks and binder‐free electrode fabrication, leading to enhanced oxygen evolution activity and long‐term stability under ...
Alvaro Seijas Da Silva, Federico Juarez‐Dominguez, Víctor Oestreicher, Martín Mizrahi, Diego Hunt, Bruno J. C. Vieira, Joao C. Waerenborgh, Valeria Ferrari, Gonzalo Abellán   +8 more
wiley   +1 more source

Grain size threshold for enhanced irradiation resistance in nanocrystalline and ultrafine tungsten

Materials Research Letters, 2017
Nanocrystalline metals are considered highly radiation-resistant materials due to their large grain boundary areas. Here, the existence of a grain size threshold for enhanced irradiation resistance in high-temperature helium-irradiated nanocrystalline ...
O. El-Atwani, J. A. Hinks, G. Greaves, J. P. Allain, S. A. Maloy   +4 more
doaj   +1 more source

Comment on Mie Scattering from a Sonoluminescing Bubble with High Spatial and Temporal Resolution [Physical Review E 61, 5253 (2000)]

, 2000
A key parameter underlying the existence of sonoluminescence (SL)is the time relative to SL at which acoustic energy is radiated from the collapsed bubble. Light scattering is one route to this quantity.
B. Gompf, B. P. Barber, B. P. Barber, B. P. Barber, C. C. Wu, G. A. Delgadino, G. Vacca, K. R. Weninger, K. R. Weninger, K. Weninger, P. G. Evans, S. Hilgenfeldt, S. J. Putterman, S. J. Putterman, S. J. Putterman, S. Putterman, W. J. Lenz   +16 more
core   +1 more source