Results 101 to 110 of about 2,896,907 (259)
Mass Spectrometry Reviews, Volume 44, Issue 5, Page 808-829, September/October 2025.ABSTRACT Complex organic mixtures are found in many areas of research, such as energy, environment, health, planetology, and cultural heritage, to name but a few. However, due to their complex chemical composition, which holds an extensive potential of information at the molecular level, their molecular characterization is challenging.
Charlotte Mase +5 more
wiley +1 more source
Efficiency of harmonic quantum Otto engines at maximal power
, 2018 Recent experimental breakthroughs produced the first nano heat engines that have the potential to harness quantum resources. An instrumental question is how their performance measures up against the efficiency of classical engines. For single ion engines
Deffner, Sebastian
core +1 more source
Journal of Flood Risk Management, Volume 18, Issue 3, September 2025.ABSTRACT The subsoils of river dikes are often composed of highly permeable and low‐density river sediments. Thus, erosion signatures (leaks, sand boils, sinkholes) can appear in the protected floodplain during floods, highlighting the development of hydromorphodynamic phenomena below the surface, which may harm the safety of the dike system.
Laurence Girolami +6 more
wiley +1 more source
Molecular Ecology, Volume 34, Issue 17, September 2025.ABSTRACT The AquaEcOmics meeting brought together 280 scientists applying omics tools to aquatic research in March 2025 (Evian‐les‐Bains, France). We synthesised here the main outcomes from the 167 presentations which were given. A similar number of presentations were about micro‐ and macroorganisms.
Frédéric Rimet +17 more
wiley +1 more source
On the ambiguity of an ideal gas entropy concept
Известия высших учебных заведений: Проблемы энергетики, 2020 Based on a critical analysis of the existing characteristics of an ideal gas and the theory of thermodynamic potentials, the article considers its new model, which includes the presence of an ideal gas in addition to kinetic energy of potential (chemical)
V. G. Kiselev
doaj +1 more source
, 2013 The Carnot-like heat engines are classified into three types (normal-, sub- and super-dissipative) according to relations between the minimum irreversible entropy production in the "isothermal" processes and the time for completing those processes.
B. Lin +15 more
core +1 more source
Dimensionality and geometry effects on a quantum carnot engine efficiency
Revista de Ciencias Tecnológicas, 2019 We calculate the efficiency of a quantum Carnot cycle for a particle confined in two different infinite potential wells, a cylindrical potential well of variable radius and a two-dimensional square potential well with a periodicity in one of it sides. We
Hiram Kalid Herrera Alcantar +4 more
doaj +1 more source
Approaching Carnot efficiency at maximum power in linear response regime
, 2019 We construct an example of heat engine whose efficiency at maximum power breaks down the previously derived bounds in the linear response regime. Such example takes a classical harmonic oscillator as the working substance undergoing a finite-time Otto ...
Bonança, Marcus V. S.
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EDWARDS' REFERENCE CYCLE FOR INTERNAL AND EXTERNAL COMBUSTION ENGINES
Известия высших учебных заведений и энергетических объединенний СНГ: Энергетика, 2014 Useful physical regularities of a reversible thermodynamic cycle for heat engines have been established in the paper. The engines are using fuel combustion products as a heat source, and the environment - as a heat sink that surpasses Carnot cycle ...
A. E. Piir
doaj
Applied SciencesSpain’s energy transition poses the dual challenge of managing renewable curtailment and enhancing the competitiveness of concentrated solar power (CSP) technologies. This study evaluates the suitability of replacing molten salts with solid particles for
Sergio González-Barredo +1 more
doaj +1 more source