Results 31 to 40 of about 1,249,681 (281)

Assessment of adaptability and potential productivity of spring soft wheat in the conditions of the Ryazan region

open access: yesАграрная наука Евро-Северо-Востока, 2023
The article gives a comprehensive assessment of 5 varieties (Lada, Agata, RIMA, Arcea, Maestro) and 5 breeding lines of spring soft wheat according to the yield and adaptive properties.
T. A. Barkovskaya   +2 more
doaj   +1 more source

Lead: Asymptotic Giant Branch Production and Galactic Chemical Evolution [PDF]

open access: yesThe Astrophysical Journal, 2001
Accepted for ApJ, 19 pages, 4 ...
Travaglio C.   +3 more
openaire   +4 more sources

Geometry Optimization of Branched Sheet Metal Products [PDF]

open access: yesPAMM, 2012
AbstractWe consider the geometry optimization of branched sheet metal products, which can be produced continuously and in integral style using the new technologies of linear flow splitting and linear bend splitting. These are explored within the framework of the Collaborative Research Centre (CRC) 666. The geometry of such products can be parameterized
Thea Göllner   +2 more
openaire   +1 more source

On the choice of the initial approximation in the numerical solution of parametric optimization problems

open access: yesИзвестия высших учебных заведений. Поволжский регион: Физико-математические науки, 2023
Background. In recent years, the complexity of the applied problems of parametric optimization has increased significantly. Since computational possibilities are finite, it is necessary to look for ways to increase the efficiency of the optimization ...
Igor N. Egorov   +2 more
doaj   +1 more source

Fluorine Production in Asymptotic Giant Branch Stars [PDF]

open access: yesSymposium - International Astronomical Union, 2000
The present status of our understanding of fluorine production in asymptotic giant branch stars is reviewed, and future perspectives are presented.
N. Mowlavi, A. Jorissen, M. Arnould
openaire   +1 more source

СWSME – complex of wide-swath multispectral equipment for the «Resource-P» spacecraft

open access: yesВестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение, 2016
A complex of wide-swath multispectral equipment CWSME installed on the Resource-P spacecraft is discussed in the paper. The complex contains a high resolution camera, a medium resolution camera and a control unit.
A. I. Baklanov   +3 more
doaj   +1 more source

Variations in the Na-O anticorrelation in globular clusters: Evidence for a deep mixing episode in red giant branch stars

open access: yes, 2010
The Na-O anticorrelation seen in almost all globular clusters ever studied using high-resolution spectroscopy is now generally explained by the primordial pollution from the first generation of the intermediate-mass asymptotic giant branch stars to the ...
Baines   +22 more
core   +1 more source

Current state of Aral bastard sturgeon, Acipenser nudiventris Lovetsky, 1828 populations as a rare and endangered species distributed in native water bodies and domestication in artificial conditions [PDF]

open access: yesCaspian Journal of Environmental Sciences
At present, when, as a result of human activities, the relic valuable species of sturgeons – Aral bastard sturgeon, Acipenser nudiventris Lovetsky, 1828 in its natural habitat has died out, and in the acclimatization reservoir is on the verge of ...
Tynysbek Barakbayev   +4 more
doaj   +1 more source

Pressure transient analysis for multi-wing fractured vertical well in coalbed methane reservoir based on fractal geometry and fractional calculus

open access: yesEnergy Exploration & Exploitation, 2022
In this paper, a semi-analytical mathematical model of pressure transient analysis (PTA) for multi-wing fractured vertical well (MWFV) in coalbed methane (CBM) reservoir is proposed, which considers the complexity of porous media by fractal geometry, the
Haoyuan Li   +7 more
doaj   +1 more source

Van Hove Singularities in the Quark-Gluon Plasma [PDF]

open access: yes, 2000
General arguments as well as different approximations for the in-medium quark propagator in a quark-gluon plasma lead to quark dispersion relations that exhibit a minimum in one branch (plasmino).
Thoma, Markus H.
core   +3 more sources

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