Results 121 to 130 of about 345 (250)

Comments on the structure and dynamics of magnetic fields in stellar convection zones

, 2005
This paper is a ``Habilitationsschrift'', a second thesis required until recently by universities in Germany and in a few other countries to obtain the right to lecture. It was accepted by the University of Goettingen in 1990 after review by a number of german and international experts.
openaire   +2 more sources

Research on Heat Transfer Enhancement of Spiral Grooved Tube Heat Exchangers Based on CFD and Artificial Intelligence

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Driven by the energy crisis and carbon neutrality goals, high‐efficiency heat exchange equipment has become a core demand in the industrial sector. The spiral grooved double‐pipe heat exchanger exhibits significant heat transfer enhancement advantages, yet it requires balancing heat transfer efficiency and pressure loss.
Yueyun Yang, Wei Li, Xiuzhi Xi, Neng Gao
wiley   +1 more source

The Response of Rotating Stellar Convection to Latitudinally Varying Heat Flux

The Astrophysical Journal
We investigate how rotating convection responds to the imposition of a latitudinally varying heat flux at the base of the convective layer. This study is motivated by the solar near-surface shear layer, whose flows are thought to transition from a ...
Kinfe Teweldebirhan, Rituparna Curt, Nicholas A. Featherstone   +2 more
doaj   +1 more source

Dynamics of the Tachocline. [PDF]

Space Sci Rev, 2023
Strugarek A, Belucz B, Brun AS, Dikpati M, Guerrero G.   +4 more
europepmc   +1 more source

Bioconvective Unsteady Casson Hybrid Nanofluid Flow on a Variable Darcy Regime Between Two Rotating Disks With Variable Heat Source

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT This study carries significant consequences in various engineering applications, such as cooling rotating disk surfaces, improving chemical reactor performance, and designing filtration systems. Considering these main applications in view, the aim of this study is to investigate time‐dependent Casson hybrid nanofluid flow on a permeable ...
Ebrahem A. Algehyne, Abdul Bariq, Mounirah Areshi, Fahad Maqbul Alamrani, Zehba Raizah, Izharul Haq, Anwar Saeed   +6 more
wiley   +1 more source

Microwave‐Assisted Alcoholysis of Ethylene–Vinyl Acetate: Phenomenological and Thermal Evolution of EVAOH Terpolymers

Journal of Applied Polymer Science, EarlyView.
Microwave‐assisted alcoholysis converts EVA into EVAOH terpolymers, promoting a progressive transition from EVA‐like crystallites to VOH‐rich hydrogen‐bonded crystalline domains. Solvent‐controlled swelling influences conversion kinetics, while thermal analysis reveals a sigmoidal increase in melting temperature that a two‐population crystallization ...
Fernanda Trindade Gonzalez Dias, Aline Benittes dos Santos, Lucas Dall Agnol, Otávio Bianchi   +3 more
wiley   +1 more source

Metal-rich stars are less suitable for the evolution of life on their planets. [PDF]

Nat Commun, 2023
Shapiro AV, Brühl C, Klingmüller K, Steil B, Shapiro AI, Witzke V, Kostogryz N, Gizon L, Solanki SK, Lelieveld J.   +9 more
europepmc   +1 more source

Hydrogen Convection Zones and Stellar Rotation

The Astrophysical Journal, 1967
P. Demarque, R. C. Roeder
openaire   +1 more source

Cooling Holes in Polymer Spur Gears: A Critical Analysis of Heat Dissipation Benefits and Mesh Stiffness Penalties

Journal of Applied Polymer Science, EarlyView.
Cooling holes provide a simple passive cooling strategy for polymer spur gears, reducing maximum operating temperature by up to 9.39% while introducing a measurable gear mesh stiffness penalty. A validated response‐surface model reveals how hole size and location govern this thermal–mechanical trade‐off, enabling design optimization for thermally and ...
Abderrahim Baccar, Ahmed Samet, Ahmed Hammami, Nuno Dourado, Ali Akrout, Mohamed Haddar   +5 more
wiley   +1 more source

Measuring the magnetic fields in the chromospheres of low-mass stars [PDF]

Nat Commun
Cang T, Petit P, Donati J, Tian H, Fu J, Li H, Bellotti S, Hu X, Ma X, Ariste AL, Xing K, Morin J, Lu H, Zong W.   +13 more
europepmc   +2 more sources