Results 31 to 40 of about 12,546,985 (277)
Collapsing Spheres Satisfying An "Euclidean Condition" [PDF]
, 2010 We study the general properties of fluid spheres satisfying the heuristic assumption that their areas and proper radius are equal (the Euclidean condition). Dissipative and non-dissipative models are considered.
A. Di Prisco +18 more
core +2 more sources
AIP Advances, 2018 The Flame pyrolysis method used to synthesize carbon nanotubes was studied in this work. In order to improve the quality of synthesized carbon nanotubes, it is important to change the corresponding natures of the catalyst.
Yonghong Guo +8 more
doaj +1 more source
Cooling Performance Enhancement of Air-Cooled Condensers by Guiding Air Flow
Energies, 2019 Adverse wind effects on the thermo-flow performances of air-cooled condensers (ACCs) can be effectively restrained by wind-proof devices, such as air deflectors.
Xianwei Huang +4 more
doaj +1 more source
, 2013 In this paper we argue that boundary condition may run with energy scale. As an illustrative example, we consider one-dimensional quantum mechanics for a spinless particle that freely propagates in the bulk yet interacts only at the origin.
Ohya, Satoshi +2 more
core +1 more source
Null energy condition and superluminal propagation [PDF]
, 2005 We study whether a violation of the null energy condition necessarily implies the presence of instabilities. We prove that this is the case in a large class of situations, including isotropic solids and fluids relevant for cosmology. On the other hand we
A. Adams +21 more
core +2 more sources
Energies, 2018 Organic Rankine cycle (ORC) is a reliable technology to recover low-grade heat sources. The radial-inflow turbine is a critical component, which has a significant influence on the overall efficiency of ORC system.
Peng Li +4 more
doaj +1 more source
Comment on the Adiabatic Condition [PDF]
, 2000 The experimental observation of effects due to Berry's phase in quantum systems is certainly one of the most impressive demonstrations of the correctness of the superposition principle in quantum mechanics.
de Faria, J. G. Peixoto +3 more
core +2 more sources
Alopecia areata: a multifactorial autoimmune condition [PDF]
, 2019 Alopecia areata is an autoimmune disease that results in non-scarring hair loss, and it is clinically characterised by small patches of baldness on the scalp and/or around the body. It can later progress to total loss of scalp hair (Alopecia totalis) and/
Butcher, John P. +3 more
core +1 more source
Decisions in Economics and Finance, 2004 This paper investigates a generalization of the notion of comonotonicity by introducing and exploring the concept of conditional comonotonicity. The authors characterize this notion and show by examples that conditional comonotonicity is the natural extension of comonotonicity to dynamic settings.
Napp, Clotilde, Jouini, Elyès
openaire +4 more sources
EngineeringUltrahigh pressure generation at high temperatures is technologically challenging for large sample volumes. In this study, we successfully generated pressures of 37.3–40.4 GPa at 1900–2100 K in a Walker-type large-volume press (LVP).
Xuyuan Hou +13 more
doaj +1 more source