Results 31 to 40 of about 226,418 (293)

Formation of supermassive black hole seeds [PDF]

open access: yes, 2016
The detection of quasars at $z>6$ unveils the presence of supermassive black holes (BHs) of a few billion solar masses. The rapid formation process of these extreme objects remains a fascinating and open issue.
Ferrara, Andrea, Latif, Muhammad A.
core   +1 more source

Formation of the oil flax yield in the conditions of the Sverdlovsk region [PDF]

open access: yesE3S Web of Conferences, 2021
Oil flax was grown on gray forest soils of the Middle Urals in the period 2012-2020. The purpose of the research was to identify changes in the yield structure of various oil flax varieties and its productivity, depending on the growing conditions.
Kolotov A.P.
doaj   +1 more source

Some Physical and Mechanical Properties of Black Cumin Seeds Preparatory to Primary Processing

open access: yesEngineering Advances, 2021
The study was carried out to determine the physical, mechanical and frictional characteristics of black seeds, namely, principal axes, arithmetic mean diameter, geometric mean diameter, surface area, volume, 1000 unit mass, sphericity, aspect ratio ...
R. Davies
semanticscholar   +1 more source

Enzyme‐assisted aqueous extraction of Kalahari melon seed oil: optimization using response surface methodology [PDF]

open access: yes, 2009
Enzymatic extraction of oil from Kalahari melon seeds was investigated and evaluated by response surface methodology (RSM). Two commercial protease enzyme products were used separately: Neutrase® 0.8 L and Flavourzyme® 1000 L from Novozymes (Bagsvaerd ...
A Rosenthal   +20 more
core   +1 more source

From Seeds to Supermassive Black Holes: Capture, Growth, Migration, and Pairing in Dense Protobulge Environments [PDF]

open access: yesAstrophysical Journal Letters
The origins and mergers of supermassive black holes (SMBHs) remain a mystery. We describe a scenario from a novel multiphysics simulation featuring rapid (≲1 Myr) hyper-Eddington gas capture by a ∼1000 M ⊙ “seed” black hole (BH) up to supermassive (≳106 ...
Yanlong Shi   +2 more
semanticscholar   +1 more source

THE VARIABILITY OF THE TRAIT «WEIGHT OF 1000 SEEDS» AS A MOST IMPORTANT ELEMENT OF PRODUCTIVITY OF VEGETABLE PEA

open access: yesОвощи России, 2018
Research was carried out on the basis of the laboratory of breeding and seed production of legumes Federal state budgetary scientific institution "Federal scientific center of vegetable growing" (Moscow region) in 2013-2017.
I. P. Kotlyar   +3 more
doaj   +1 more source

Effect of pre-sowing treatment of spring wheat seeds on linear sizes and geometric grain characteristics

open access: yesSiberian Herald of Agricultural Science, 2021
The results of assessing the effect of biological preparations and a seed disinfectant on the technological qualities of grain of soft spring wheat Novosibirskaya 31 are presented.
N. G. Vlasenko*, S. V. Burlakova
semanticscholar   +1 more source

Exponentially growing bubbles around early super massive black holes [PDF]

open access: yes, 2017
We addressed the so far unexplored issue of outflows induced by exponentially growing power sources, focusing on early supermassive black holes (BHs).
A. D’Ercole   +86 more
core   +2 more sources

Halo mergers enhance the growth of massive black hole seeds [PDF]

open access: yesAstronomy & Astrophysics
High-redshift observations of 10$^9$ M$_ supermassive black holes (SMBHs) at $z and `little red dots' that may host over-massive black holes (BHs) at $z>4$ suggests the existence of so-called heavy seeds (>1000 M$_ in the early Universe.
L. Prole   +4 more
semanticscholar   +1 more source

Theoretical models of planetary system formation. II. Post-formation evolution [PDF]

open access: yes, 2015
We extend the results of planetary formation synthesis by computing the long-term evolution of synthetic systems from the clearing of the gas disk into the dynamical evolution phase.
Alibert, Y.   +3 more
core   +3 more sources

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