Results 121 to 130 of about 51,405 (265)

Exploring the Effects of Reduced Gravitational Field Impacts on Convective Heat Transfer: A Comprehensive Review

Heat Transfer, Volume 55, Issue 1, Page 764-774, January 2026.
ABSTRACT This review explores the impact of gravitational instability on convective heat transfer, integrating existing research results and theoretical models. Gravitational instability is vital in promoting or hindering convective actions in different systems, such as atmospheric events, ocean currents, and industrial processes.
Hossam A. Nabwey, Muhammad Ashraf, A. M. Rashad, Ali J. Chamkha   +3 more
wiley   +1 more source

Rotation and mass of the sa galaxy, ngc 681 [PDF]

Rotation curve, mass distribution, and mass density of SA galaxy, NGC ...
Burbridge, E. M., Burbridge, G. R., Prendergast, K. H.   +2 more
core   +1 more source

The isolated interacting galaxy pair NGC 5426/27 (Arp 271)

, 2003
We present H alpha observations of the isolated interacting galaxy pair NGC 5426/27 using the scanning Fabry-Perot interferometer PUMA. The velocity field, various kinematical parameters and rotation curve for each galaxy were derived.
A. Bernal, Alfaro, Amram, Amram, Amram, Barnes, Barnes, Blackman, Blais-Ouellette, Bottinelli, Chengalur, D. Dultzin-Hacyan, de Vaucouleurs, E. Laurikainen, E. Le Coarer, Elmegreen, González-Delgado, H. Salo, Hohl, Honma, Hubble, I. Cruz-González, I. Fuentes-Carrera, Jungwiert, Karachentsev, Karachentsev, Kaufman, Keel, Kravtsov, Le Coarer, Lequeux, Lin, M. Rosado, Marcelin, Marquez, Miwa, Navarro, Noguchi, Nordgren, Nordsieck, P. Ambrocio-Cruz, P. Amram, Pasha, Pismis, Rosado, Salo, Salo, Salo, Schombert, Schweizer, Schweizer, Sellwood, Thomasson, Toomre, van den Bergh, Warner, Wozniak, Yamagata   +57 more
core   +2 more sources

Debye‐Scale Bipolar Structures and Their Role in the Electron Trajectory Instability at the Bow Shock

Journal of Geophysical Research: Space Physics, Volume 131, Issue 1, January 2026.
Abstract A number of mechanisms have been suggested to operate within the terrestrial bow shock to redistribute energy contained in the incoming solar wind flow. The majority of mechanisms involve the generation of turbulence while some are based on particle motion alone.
Simon N. Walker, Michael Gedalin, Michael A. Balikhin   +2 more
wiley   +1 more source

Astrometry of Galactic Star Forming Region Sharpless 269 with VERA : Parallax Measurements and Constraint on Outer Rotation Curve

, 2007
We have performed high-precision astrometry of H2O maser sources in Galactic star forming region Sharpless 269 (S269) with VERA. We have successfully detected a trigonometric parallax of 189+/-8 micro-arcsec, corresponding to the source distance of 5.28 +
Bushimata, Takeshi, Choi, Yoon Kyung, Hirota, Tomoya, Honma, Mareki, Imai, Hiroshi, Iwadate, Kenzaburo, Jike, Takaaki, Kameya, Osamu, Kamohara, Ryuichi, Kan-ya, Yukitoshi, Kawaguchi, Noriyuki, Kijima, Masachika, Kobayashi, Hideyuki, Kuji, Seisuke, Kurayama, Tomoharu, Manabe, Seiji, Miyaji, Takeshi, Nagayama, Takumi, Nakagawa, Akiharu, Oh, Chung Sik, Omodaka, Toshihiro, Oyama, Tomoaki, Sakai, Satoshi, Sasao, Tetsuo, Sato, Katsuhisa, Shibata, Katsunori M., Shintani, Motonobu, Suda, Hiroshi, Tamura, Yoshiaki, Tsushima, Miyuki, Yamashita, Kazuyoshi   +30 more
core   +2 more sources

Internal kinematics of modelled interacting disc galaxies

, 2006
We present an investigation of galaxy-galaxy interactions and their effects on the velocity fields of disc galaxies in combined N-body/hydrodynamic simulations, which include cooling, star formation with feedback, and galactic winds. Rotation curves (RCs)
Boehm, A., Kapferer, W., Kronberger, T., Kutdemir, E., Schindler, S., Ziegler, B. L.   +5 more
core   +1 more source

Galactic Spiral Arms: Structure and Dynamics Given by an Equation of Motion [PDF]

, 2013
Using an equation of motion for a self-gravitating filament, we show how galactic spiral arms might be created and sustained. We find that the combination of differential rotation of the galactic disk and the self-gravity of the arm (as given by the ...
Buck, Gregory
core  

On the axisymmetric thin disk model of flattened galaxies

, 2008
Non-monotonic features of rotation curves, and also the related gravitational effects typical of thin disks -- like backward-reaction or amplification of rotation by negative surface density gradients -- which are characteristic imprints of disk-like ...
Binney, Bosma, Brandt, Braun, Burbidge, Jałocha, Jałocha, Joanna Jałocha, Lebedev, Marek Kutschera, Ostriker, Ryzhik, Sofue, Takamiya, Toomre, Toomre, Young, Łukasz Bratek   +17 more
core   +1 more source

Deep Learning–Based Automated Crack Detection for Post‐Earthquake Damage Assessment in Reinforced Concrete Structures

Advances in Civil Engineering, Volume 2026, Issue 1, 2026.
This study explores the integration of deep learning technologies, specifically U‐Net based segmentation methods, for evaluating earthquake‐induced damages. The study leverages a dataset derived from the Kahramanmaraş earthquake to train and test deep learning models capable of identifying and quantifying structural damages such as concrete cracks. The
Kemal Hacıefendioğlu, Serhat Demir, Vagelis Plevris   +2 more
wiley   +1 more source

An Edge-on Regular Disk Galaxy at z = 5.289

The Astrophysical Journal
While rotation-supported gas disks are known to exist as early as at z ≈ 7, it is still a general belief that stellar disks form late in the Universe.
Haojing Yan, Bangzheng Sun, Chenxiaoji Ling   +2 more
doaj   +1 more source