Results 51 to 60 of about 331,986 (172)

Some New Fixed Point Theorems in Partial Metric Spaces with Applications

open access: yesJournal of Function Spaces, 2017
Recently, a number of fixed point theorems for contraction type mappings in partial metric spaces have been obtained by various authors. Most of these theorems can be obtained from the corresponding results in metric spaces.
Rajendra Pant   +3 more
doaj   +1 more source

Cost–Benefit Analysis for Flexibility in Hydrothermal Power Systems

open access: yesEnergies
The world is experiencing an energy transition, migrating from fossil fuels to renewables, which are usually intermittent and, therefore, require flexibility to keep the power system reliable. Although system flexibility is a well-known theme of research,
Gabriel de Azevedo Cavados   +1 more
doaj   +1 more source

Analysis of 19-inch and metric mechanical structures for electronic equipment

open access: yesTekhnologiya i Konstruirovanie v Elektronnoi Apparature, 2015
The paper deals with the research and analysis of various quality indicators of the standard mechanical structures of two constructional systems in order to define and compare their characteristics, and to predict prospects for their use.
A. A. Yefimenko, A. P. Karlangach
doaj   +1 more source

Duality equations on a 4-manifold of conformal torsion-free connection and some of their solutions for the zero signature

open access: yesVestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2019
On a 4-manifold of conformal torsion-free connection with zero signature (--++) we found conditions under which the conformal curvature matrix is dual (self-dual or anti-self-dual).
Leonid Nikolaevich Krivonosov   +1 more
doaj   +1 more source

Support for a Common Metric for Pediatric Pain Intensity Scales

open access: yesPain Research and Management, 2000
Institutional adoption of routine measurement of pediatric pain has been impeded partly by the profusion of different metrics (eg, 0 to 5, 0 to 6, 0 to 10, 0 to 100) for reporting pain intensity on various instruments.
Carl L von Baeyer, Carrie L Hicks
doaj   +1 more source

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