Results 11 to 20 of about 166,187,075 (240)

From terminating to transforming : the role of phase-out in sustainability transitions [PDF]

open access: yes, 2021
Phase-out is rapidly gaining traction as a central part of practical efforts to address sustainability challenges. However, the way it has been conceived of in policy debates and some academic work is problematic in that it (1) tends to be narrowly ...
Rinscheid, A.L.M.   +7 more
core   +3 more sources

Phase Transitions of YbBr2 [PDF]

open access: yes, 2014
The crystalline phases of YbBr2 were investigated by powder neutron diffraction between 1.5 K and the melting point at 955 K (682 °C). The low temperature SrI2 phase is observed up to 550 K, the α-PbO2 phase between 260 K and 750 K, the CaCl2 phase ...
Keller, Lukas, Krämer, Karl
core   +2 more sources

Structures, enthalpies of formation, and ionization energies for the parent and binary mixed carbon, silicon, nitrogen, and phosphorus cubane derivatives: A G4MP2 theoretical study [PDF]

open access: yes, 2010
Gas phase standard state (298.15 K, 1 atm) structures, enthalpies of formation, and ionization energies (IEs) were calculated at the G4MP2 composite method level of theory for the parent and binary mixed carbon, silicon, nitrogen, and phosphorus cubane ...
Sierra Rayne, Kaya Forest
core   +1 more source

Théorie spectrale des transitions de phase dissipatives non-markoviennes [PDF]

open access: yes, 2023
So far, dissipative phase transitions (DPTs) have been mostly studied for quantum systems coupled to idealized Markovian (memoryless) environments, where the closing of the Liouvillian gap consitutes a hallmark.
Debecker, Baptiste   +2 more
core   +1 more source

Phase transitions in single neurons and neural populations: Critical slowing, anesthesia, and sleep cycles [PDF]

open access: yes, 2010
The firing of an action potential by a biological neuron represents a dramatic transition from small-scale linear stochastics (subthreshold voltage fluctuations) to gross-scale nonlinear dynamics (birth of a 1-ms voltage spike). In populations of neurons
Steyn-Ross, Moira L.   +3 more
core   +1 more source

Solid fat content determination: Comparison between pNMR and DSC techniques

open access: yesGrasas y Aceites, 1995
Differential Scanning Calorimetry (DSC) has been one of the most popular thermal analysis techniques during the last two decades. The present work shows the utilization of DSC on the determination of solid fat content in fats.
Renata Tieko Nassau   +1 more
doaj   +1 more source

Calculation for High Pressure Behaviour of Potential Solar Cell Materials Cu2FeSnS4 and Cu2MnSnS4

open access: yesCrystals, 2021
Exploring alternatives to the Cu2ZnSnS4 kesterite solar cell absorber, we have calculated first principle enthalpies of different plausible structural models (kesterite, stannite, P4¯ and GeSb type) for Cu2FeSnS4 and Cu2MnSnS4 to identify low and high ...
Tim Küllmey   +3 more
doaj   +1 more source

Stabilization of the (C2H5)4NHSO4 High-Temperature Phase in New Silica-Based Nanocomposite Systems

open access: yesMolecules, 2022
In this study, the electrotransport, thermal and structural properties of composite solid electrolytes based on (C2H5)4NHSO4 plastic phase and silica (1 − x)Et4NHSO4−xSiO2, where x = 0.3–0.9) were investigated for the first time.
Valentina Ponomareva   +3 more
doaj   +1 more source

Emergence and Reduction Combined in Phase Transitions [PDF]

open access: yes, 2011
In another paper (Butterfield 2011), one of us argued that emergence and reduction are compatible, and presented four examples illustrating both. The main purpose of this paper is to develop this position for the example of phase transitions.
Butterfield, Jeremy   +3 more
core   +1 more source

Hydrate Production Philosophy and Thermodynamic Calculations

open access: yesEnergies, 2020
The amount of energy in the form of natural gas hydrates is huge and likely substantially more than twice the amount of worldwide conventional fossil fuel. Various ways to produce these hydrates have been proposed over the latest five decades.
Bjørn Kvamme   +6 more
doaj   +1 more source

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