Results 41 to 50 of about 7,492 (146)

On column density thresholds and the star formation rate [PDF]

, 2014
We present the results of a numerical study designed to address the question of whether there is a column density threshold for star formation within molecular clouds. We have simulated a large number of different clouds, with volume and column densities
Clark, Paul C., Glover, Simon C. O.
core   +1 more source

A Dynamic Adam Based Deep Neural Network for Fault Diagnosis of Oil-Immersed Power Transformers

Energies, 2019
This paper presents a Dynamic Adam and dropout based deep neural network (DADDNN) for fault diagnosis of oil-immersed power transformers. To solve the problem of incomplete extraction of hidden information with data driven, the gradient first-order ...
Minghui Ou, Hua Wei, Yiyi Zhang, Jiancheng Tan   +3 more
doaj   +1 more source

Intelligent Fault Detection of MV/HV Transformers Using Fuzzy Logic Based on DGA

Eng
Dissolved Gas Analysis (DGA) of power system transformers has emerged as one of the most effective transformer health diagnosing tools by analyzing the gases dissolved in the insulating oil.
Lone Larona Mogotsi, Akhtar Rasool, Edwin Matlotse, Sadaqat Ali, Ahmed Ali   +4 more
doaj   +1 more source

Nanoscale roughness and morphology affect the IsoElectric Point of titania surfaces [PDF]

, 2013
We report on the systematic investigation of the role of surface nanoscale roughness and morphology on the charging behaviour of nanostructured titania (TiO2) surfaces in aqueous solutions. IsoElectric Points (IEPs) of surfaces have been characterized by
Borghi, F., Milani, P., Podestà, A., Vyas, V.   +3 more
core   +4 more sources

Stable Carbon and Nitrogen Isotope Analysis Explores Diverse Domestic Goose Management Practices in Medieval and Postmedieval Russia

International Journal of Osteoarchaeology, EarlyView.
ABSTRACT Studying goose domestication through archaeological finds has been challenging due to the similar skeletal morphology of the European domestic goose and its wild progenitor, the greylag goose (Anser anser). We analyzed stable carbon (δ13C) and nitrogen (δ15N) isotopes from bone collagen of subfossil domestic and potentially domestic geese to ...
Johanna Honka, Clément Massé, Arthur O. Askeyev, Igor V. Askeyev, Oleg V. Askeyev, Jouni Aspi, Dilyara N. Shaymuratova, Laura Kvist   +7 more
wiley   +1 more source

Galaxy And Mass Assembly (GAMA): linking star formation histories and stellar mass growth [PDF]

, 2013
We present evidence for stochastic star formation histories in low-mass (M* < 1010 M⊙) galaxies from observations within the Galaxy And Mass Assembly (GAMA) survey. For ˜73 000 galaxies between 0.05 < z < 0.32, we calculate star formation rates (SFR) and
Bauer, Amanda E Bauer, Sansom, Anne E
core   +1 more source

‘We Are Only Playing’: Reflections on the Pandemic's Effects on Immigrant Preschoolers' Mentalisation and Play During the Sand Play Workshops

Children &Society, EarlyView.
ABSTRACT Mentalisation and symbolisation are important processes to support children in understanding their lived experience. By expressing what is most salient to them through pretend play, children can normally develop their capacity to mentalise and symbolise, which helps them cope with adversity.
Caroline Beauregard
wiley   +1 more source

A combined technique for power transformer fault diagnosis based on k‐means clustering and support vector machine

IET Nanodielectrics
This contribution presents a two‐step hybrid diagnostic approach, combining k‐means clustering for subset formation, followed by subset analysis conducted by human experts.
Arnaud Nanfak, Abdelmoumene Hechifa, Samuel Eke, Abdelaziz Lakehal, Charles Hubert Kom, Sherif S. M. Ghoneim   +5 more
doaj   +1 more source

Simultaneously modelling far-infrared dust emission and its relation to CO emission in star forming galaxies

, 2016
We present a method to simultaneously model the dust far-infrared spectral energy distribution (SED) and the total infrared $-$ carbon monoxide (CO) integrated intensity $(S_{\rm IR}-I_{\rm CO})$ relationship.
Cormier, Diane, Hony, Sacha, Klessen, Ralf S., Konstandin, Lukas K., Loredo, Thomas, Pellegrini, Eric W., Roman-Duval, Julia, Ruppert, David, Shetty, Rahul   +8 more
core   +1 more source

Methanol maser associated outflows: detection statistics and properties [PDF]

, 2014
We have selected the positions of 54 6.7 GHz methanol masers from the Methanol Multibeam Survey catalogue, covering a range of longitudes between 20° and 34° of the Galactic plane.
A. Chrysostomou, Arce, Bachiller, Bally, Bergin, Beuther, Beuther, Beuther, Bonnell, Bonnell, Bontemps, Brand, Breen, Breen, Bronfman, Buckle, Buckle, Cabrit, Cabrit, Cabrit, Caswell, Caswell, Cavanagh, Cesaroni, Cesaroni, Chambers, Chen, Chrysostomou, Churchwell, Churchwell, Clarke, Clemens, Codella, Codella, Contreras, Csengeri, Curtis, Cyganowski, Cyganowski, D. Ward-Thompson, Davis, De Buizer, De Buizer, Dent, Downes, Dunham, Ellingsen, Fish, Frerking, Garden, Goldsmith, Gottschalk, Green, Green, H. M. de Villiers, Hatchell, Hatchell, Henning, Herbst, Hofner, J. S. Urquhart, Jijina, Kim, Konigl, Krumholz, Krumholz, Kuiper, Kurtz, Lada, López-Sepulcre, M. A. Thompson, M. G. Burton, McKee, Menten, Minchin, Minier, Minier, Minier, Molinari, Molinari, Molinari, Moore, Mottram, Narayanan, Norberg, Ortega, Parker, Parsons, Pestalozzi, Purcell, Reid, Richer, Ridge, Rodriguez, Roman-Duval, S. L. Breen, S. P. Ellingsen, Schuller, Shepherd, Shepherd, Shu, Shu, Shu, Shu, Simon, Smith, Smith, Snell, Sobolev, Sridharan, Stahler, Su, Szymczak, Sánchez-Monge, T. Csengeri, Takahashi, Tomisaka, Urquhart, Urquhart, Urquhart, Urquhart, Urquhart, van der Marel, van der Walt, van der Walt, Walsh, Williams, Williams, Wilson, Wolfire, Wu, Wu, Wu, Xu, Xu, Yorke, Zapata, Zhang, Zhang, Zinnecker   +139 more
core   +4 more sources