Results 11 to 20 of about 164,976 (267)

Temperature-polarization correlations from tensor fluctuations [PDF]

open access: yesPhysical Review D, 1995
5 pages, revtex, 5 figures, compressed and ...
Crittenden, R. G.   +2 more
openaire   +3 more sources

Low-Temperature Biosurfactants from Polar Microbes [PDF]

open access: yesMicroorganisms, 2020
Surfactants, both synthetic and natural, are used in a wide range of industrial applications, including the degradation of petroleum hydrocarbons. Organisms from extreme environments are well-adapted to the harsh conditions and represent an exciting avenue of discovery of naturally occurring biosurfactants, yet microorganisms from cold environments ...
Trudgeon, Benjamin   +4 more
openaire   +3 more sources

Temperature-dependent polarization in a non-polar crystal [PDF]

open access: yesNature, 2019
A crystal’s surface has been found to behave as a distinct material that has temperature-dependent electrical polarization — despite the rest of the crystal being non-polar. Pyroelectricity in the surface layers of strontium titanate.
Catalan, Gustau, Noheda, Beatriz
openaire   +5 more sources

Numerical simulation and theoretical study on effects of operating parameters in Persian Gulf desalination using vacuum membrane distillation [PDF]

open access: yesمجله مدل سازی در مهندسی, 2018
The Persian Gulf and its coastal areas are considered to be the largest source of crude oil in the world. On the other hand, the waste heat from the refining and petrochemical industries located around the Persian Gulf region can be used based on simple ...
Morteza Asghari   +2 more
doaj   +1 more source

Temperature-controlled terahertz polarization conversion bandwidth

open access: yesOptics Express, 2021
Active control of metasurfaces has attracted widespread attention because of the adjustable electromagnetic properties obtained. Here we designed and experimentally studied a dynamically controllable polarization converter in the terahertz band. By designing the structural parameters and utilizing the insulator-to-metal phase transition of vanadium ...
Jing Zhao   +12 more
openaire   +2 more sources

Tunnel Spin-Polarization of Ferromagnetic Metals and Ferrimagnetic Oxides and Its Effect on Tunnel Magnetoresistance

open access: yesElectronic Materials, 2022
This work presents an examination and unification of fragmented data on spin polarization in half-metallic, ferrimagnetic oxides. It also includes well understood ferromagnetic metals for comparison.
Gunnar Suchaneck
doaj   +1 more source

Observation of room-temperature polar skyrmions [PDF]

open access: yesNature, 2019
Complex topological configurations are fertile ground for exploring emergent phenomena and exotic phases in condensed-matter physics. For example, the recent discovery of polarization vortices and their associated complex-phase coexistence and response under applied electric fields in superlattices of (PbTiO3)n/(SrTiO3)n suggests the presence of a ...
Das, S   +26 more
openaire   +5 more sources

Electrocaloric effect and freezing temperature in (Pb0.8Ba0.2)[(Zn1∕3Nb2∕3)0.7Ti0.3]O3 relaxor ferroelectric ceramic [PDF]

open access: yesJournal of Advanced Dielectrics, 2016
The electrocaloric effect (ECE) is studied in (Pb0.8Ba0.2)[(Zn1∕3Nb2∕3)0.7Ti0.3]O3 relaxor ferroelectric ceramic by using an “indirect method”. The electric dependence for the polarization (hysteresis loops) has been obtained for several temperatures ...
A. Peláiz-Barranco   +2 more
doaj   +1 more source

CFD Investigation of Spacer-Filled Channels for Membrane Distillation

open access: yesMembranes, 2019
The membrane distillation (MD) process for water desalination is affected by temperature polarization, which reduces the driving force and the efficiency of the process. To counteract this phenomenon, spacer-filled channels are used, which enhance mixing
Mariagiorgia La Cerva   +6 more
doaj   +1 more source

Heat and Mass Transport in Modeling Membrane Distillation Configurations: A Review

open access: yesFrontiers in Energy Research, 2018
Identification and mitigation of challenges associated with membrane distillation (MD) modeling are very crucial to the applicability of MD technology in the industry. Several research studies have been carried out on direct contact membrane distillation
Samuel O. Olatunji, Lucy Mar Camacho
doaj   +1 more source

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