Results 11 to 20 of about 3,900,707 (268)

REAL SURFACES IN ELLIPTIC SURFACES [PDF]

open access: yesInternational Journal of Mathematics, 2005
We study the structure of complex points on real surfaces, embedded into complex elliptic surfaces. We show, for example, that any compact connected surface has a totally real embedding into a blow-up of a K3 surface. We also exhibit smooth disc bundles over compact connected orientable surfaces that have a Stein structure as Stein domains inside ...
openaire   +3 more sources

An analysis of the trend of protected area size in Serbia in the period from 1948 to 2016 [PDF]

open access: yesGlasnik Šumarskog Fakulteta: Univerzitet u Beogradu, 2017
The process of establishing protected areas in Serbia has been influenced by specific social-economic changes in period after World War II, which have resulted in constant growth of protected area surface and changes in protected area type of ...
Đorđević Ilija   +5 more
doaj   +1 more source

Influence of the surface nanotopography on the electrical resistance of a discrete contact of solids [PDF]

open access: yesФизико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2017
An influence of micro- and nanoscale deviations of real surfaces of engineering devices from ideal form on the electrical resistance of a discrete contact of solids has been considered.
V.V. Izmailov, M.V. Novoselova
doaj   +1 more source

Geometry and static analysis of thin shells in the form of a diagonal translation surface of the velaroidal type

open access: yesStructural Mechanics of Engineering Constructions and Buildings, 2023
The author presents the results of a study of the geometry and stress-strain state of a surface with a frame of three flat curves in coordinate planes, which have found application today mainly in the shipbuilding industry.
Olga O. Aleshina
doaj   +1 more source

On-surface synthesis on a bulk insulator surface [PDF]

open access: yesJournal of Physics: Condensed Matter, 2018
Abstract On-surface synthesis has rapidly emerged as a most promising approach to prepare functional molecular structures directly on a support surface. Compared to solution synthesis, performing chemical reactions on a surface offers several exciting new options: due to the absence of a solvent, reactions can be envisioned that are ...
Antje Richter   +4 more
openaire   +4 more sources

Variability of Surface Reflection Amplitudes of GPR Horn Antenna Depending on Distance between Antenna and Surface

open access: yesCivil and Environmental Engineering, 2016
The study focused on variability of surface reflections amplitudes of GPR horn antenna in relation to distance between an antenna and a surface is presented in the paper.
Komačka Jozef, Porubiaková Andrea
doaj   +1 more source

ON SURFACE ENERGY AND SURFACE TENSION. [PDF]

open access: yesJournal of the American Chemical Society, 1910
n ...
Mills, J. E., MacRae, Duncan
openaire   +1 more source

On the genus of reducible surfaces and degenerations of surfaces [PDF]

open access: yesAnnales de l'Institut Fourier, 2007
We deal with a reducible projective surface X with so-called Zappatic singularities , which are a generalization of normal crossings. First we compute the
Calabri, A   +3 more
openaire   +5 more sources

Exploring the corrosion inhibition capability of FAP-based ionic liquids on stainless steel [PDF]

open access: yesRoyal Society Open Science, 2020
Corrosion is clearly one of the more common causes of materials failure in stainless steel. To manage corrosion, chemical inhibitors are often used for prevention and control.
Julius Kim A. Tiongson   +6 more
doaj   +1 more source

Study on laser surface quenching structure and hardness of C45 steel

open access: yesMetalurgija, 2021
The changes of hardening depth and surface hardness of C45 steel after laser surface quenching were studied. Firstly, the Nd: YAG laser and CO2 laser were used to realize the surface quenching.
S. Y. Chen   +5 more
doaj  

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