Results 51 to 60 of about 894,821 (344)

Rehydrogenation of Sodium Borates to Close the NaBH4-H2 Cycle: A Review

open access: yesEnergies, 2021
In 2007, the US Department of Energy recommended a no-go on NaBH4 hydrolysis for onboard applications; however, the concept of a NaBH4-H2-PEMFC system has the potential to become a primary source for on-demand power supply.
Helder X. Nunes   +3 more
doaj   +1 more source

Lepton Asymmetry of the Universe and Charged Quark-Gluon Plasma [PDF]

open access: yes, 2000
The lepton asymmetry of order one is not excluded experimentally and, if present, can lead to interesting phenomena in the early Universe. It is shown that, when the temperature is above the quark-hadron transition, the lepton asymmetry induces chemical ...
Bajc   +23 more
core   +3 more sources

The Engineerization of Physical and Chemical Phenomena

open access: yesCoatings, 2022
There are a number of concepts in materials science that are only ambiguously described in the literature and/or are not completely understood [...]
openaire   +2 more sources

Wettability of Quartz by Ethanol, Rhamnolipid and Triton X-165 Aqueous Solutions with Regard to Its Surface Tension

open access: yesColloids and Interfaces, 2023
The wettability of quartz by different liquids and solutions plays a very important role in practical applications. Hence, the wetting behaviour of ethanol (ET), rhamnolipid (RL) and Triton X-165 (TX165) aqueous solutions with regard to the quartz ...
Anna Zdziennicka   +2 more
doaj   +1 more source

Wetting Behaviour of Water, Ethanol, Rhamnolipid, and Triton X-165 Mixture in the Polymer–Solution Drop–Air System

open access: yesMolecules, 2023
Despite the fact that the wetting properties of multicomponent mixtures including the surface active compounds play a very important role in many practical applications, they are not sufficiently known.
Anna Zdziennicka   +4 more
doaj   +1 more source

Modelling chemotaxis of microswimmers: from individual to collective behavior

open access: yes, 2019
We discuss recent progress in the theoretical description of chemotaxis by coupling the diffusion equation of a chemical species to equations describing the motion of sensing microorganisms. In particular, we discuss models for autochemotaxis of a single
Liebchen, B., Löwen, H.
core   +1 more source

Surface Activity of Natural Surfactants Extracted from Sapindus mukorossi and Sapindus trifoliatus Soapnuts

open access: yesColloids and Interfaces, 2021
Surfactants derived from renewable sources such as plants are an ecological alternative to synthetic surfactants. Aqueous solutions of natural surfactants extracted from soapnuts obtained from two plants, Sapindus mukorossi and Sapindus trifoliatus, were
Patrycja Wojtoń   +4 more
doaj   +1 more source

Optimization of Biodiesel Production Using Immobilized Candida Rugosa Lipase on Magnetic Fe3O4-Silica Aerogel [PDF]

open access: yesIranian Journal of Chemistry & Chemical Engineering, 2019
Hydrophobic magnetic silica aerogel was used as a support to immobilize Candida rugosa lipase by adsorption method. Physical and chemical properties of the support and immobilized lipase were determined by Field Emission Scanning Electron Microscope ...
Leila Amirkhani   +2 more
doaj  

Intrinsic noise induced resonance in presence of sub-threshold signal in Brusselator

open access: yes, 2011
In a system of non-linear chemical reactions called the Brusselator, we show that {\it intrinsic noise} can be regulated to drive it to exhibit resonance in the presence of a sub-threshold signal.
Bartholomay A. F.   +4 more
core   +2 more sources

Temperature Effect on the Adsorption and Volumetric Properties of Aqueous Solutions of Kolliphor®ELP

open access: yesMolecules, 2020
Density, viscosity and surface tension of Kolliphor® ELP, the nonionic surfactant aqueous solutions were measured at temperature T = 293−318 K and at 5K interval.
Katarzyna Szymczyk   +2 more
doaj   +1 more source

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