Results 21 to 30 of about 699,594 (289)

Spin-transfer mechanism for magnon-drag thermopower [PDF]

open access: yes, 2011
We point out a relation between the dissipative spin-transfer-torque parameter $\beta$ and the contribution of magnon drag to the thermoelectric power in conducting ferromagnets.
Duine, R. A.   +3 more
core   +5 more sources

Material Loss: Multimodality and Mourning in B.S. Johnson’s The Unfortunates and Anne Carson’s Nox

open access: yesStudia Litteraria Universitatis Iagellonicae Cracoviensis, 2023
B.S. Johnson’s The Unfortunates (1969) and Anne Carson’s Nox (2010) are among the most formally inventive and materially unique literary responses to personal loss. The first novel-in-a-box in English
Wojciech Drąg
doaj   +1 more source

Recent developments on manufacturing and characterization of fused quartz crucibles for monocrystalline silicon for photovoltaic applications

open access: yesOpen Ceramics, 2023
The dominating technology of solar cell production today is based on monocrystalline silicon, produced mostly by the Czochralski process. Recently, the solar cell industry, has started to move towards growing larger and better-performing ingots.
Gabriela Kazimiera Warden   +3 more
doaj   +1 more source

Passive Control of Base Pressure: A Review

open access: yesApplied Sciences, 2021
In the present world, passive control finds application in various areas like flow over blunt projectiles, missiles, supersonic parallel diffusers (for cruise correction), the engine of jets, static testbeds of rockets, the ports of internal combustion ...
Ambareen Khan   +2 more
doaj   +1 more source

Streamwise-traveling waves of spanwise wall velocity for turbulent drag reduction [PDF]

open access: yes, 2009
Waves of spanwise velocity imposed at the walls of a plane turbulent channel flow are studied by Direct Numerical Simulations. We consider sinusoidal waves of spanwise velocity which vary in time and are modulated in space along the streamwise direction.
Quadrio, M., Ricco, P., Viotti, C.
core   +3 more sources

Model-based electrospinning process design for nanofibers production

open access: yesITM Web of Conferences, 2018
The main concept of the electrospinning process modeling is to overcome difficulties associated with the experimental-based optimization procedure. Thus, 3-dimensional polynomial models were discussed in this work.
Drąg Marlena, Drąg Paweł
doaj   +1 more source

A Direct Optimization Algorithm for Problems with Differential-Algebraic Constraints: Application to Heat and Mass Transfer

open access: yesApplied Sciences, 2020
In this article, an optimization task with nonlinear differential-algebraic equations (DAEs) is considered. As a main result, a new solution procedure is designed. The computational procedure represents the sequential optimization approach.
Paweł Drąg
doaj   +1 more source

Air cavities at the inner cylinder of turbulent Taylor-Couette flow [PDF]

open access: yes, 2018
Air cavities, i.e. air layers developed behind cavitators, are seen as a promising drag reducing method in the maritime industry. Here we utilize the Taylor-Couette (TC) geometry, i.e. the flow between two concentric, independently rotating cylinders, to
Bakhuis, Dennis   +5 more
core   +2 more sources

Drag enhancement and drag reduction in viscoelastic flow [PDF]

open access: yes, 2018
Creeping flow of polymeric fluid without inertia exhibits elastic instabilities and elastic turbulence accompanied by drag enhancement due to elastic stress produced by flow-stretched polymers.
Steinberg, Victor, Varshney, Atul
core   +4 more sources

The Image of Intercultural Relations in the TV Serial. Case Study of Dziewczyny ze Lwowa (Girls from Lviv)

open access: yesActa Universitatis Lodziensis. Folia Litteraria Polonica, 2018
The article focuses on the intercultural meeting between Poles and Ukrainians in the television series. The series Girls from Lviv was created by Poles and presents stories of Ukrainian migrating to Warsaw for economic reasons.
Katarzyna Drąg
doaj   +1 more source

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