Results 11 to 20 of about 1,345,046 (291)

A Check List of the Lepidoptera of Beaver Creek State Park, Columbiana County, Ohio [PDF]

open access: yes, 2017
Results of a comprehensive survey of Lepidoptera occurring at a 12,334 hectare natural area in Columbiana County. Ohio conducted in 1985 and 1990 is presented.
Mezler, Eric H, Rings, Roy W
core   +2 more sources

An improvement of competitive exercises performing on the rings by 10–12 year old gymnasts using special physical training

open access: yesСлобожанський науково-спортивний вісник, 2017
Purpose: to reveal the influence of the level of special physical readiness of gymnasts of 10–12 years on the technique of performing exercises on rings. Material & Methods: for the task of testing the level of special physical and technical preparedness
Alfiya Deyneko
doaj   +1 more source

Dynamics and Stability of Black Rings [PDF]

open access: yes, 2006
We examine the dynamics of neutral black rings, and identify and analyze a selection of possible instabilities. We find the dominating forces of very thin black rings to be a Newtonian competition between a string-like tension and a centrifugal force. We
Amitabh Virmani   +12 more
core   +4 more sources

Neutrosophic Rings [PDF]

open access: yes, 2006
This book has four chapters. Chapter one is introductory in nature, for it recalls some basic definitions essential to make the book a self-contained one.
Kandasamy, W. B. Vasantha   +1 more
core   +3 more sources

Theoretical model for double-skinned concrete-filledsteel-tubular columns with external confinement

open access: yesJournal of Civil Engineering and Management, 2015
Recent advances in the production of super-fine cement and filler technology has made the production of high-strength concrete (HSC) of 120 MPa practicable in the industry.
Chun Xiao Dong, Johnny Ching Ming Ho
doaj   +1 more source

Tunable Delay Lines in Silicon Photonics: Coupled Resonators and Photonic Crystals, a Comparison

open access: yesIEEE Photonics Journal, 2010
In this paper, we report a direct comparison between coupled resonator optical waveguides (CROWs) and photonic crystal waveguides (PhCWs), which have both been exploited as tunable delay lines.
A. Melloni   +8 more
doaj   +1 more source

Branch rings, thinned rings, tree enveloping rings [PDF]

open access: yesIsrael Journal of Mathematics, 2006
We develop the theory of ``branch algebras'', which are infinite-dimensional associative algebras that are isomorphic, up to taking subrings of finite codimension, to a matrix ring over themselves. The main examples come from groups acting on trees. In particular, for every field k we construct a k-algebra K which (1) is finitely generated and infinite-
openaire   +4 more sources

Medieval jewelry at the “Palace Center – East” site in Pliska

open access: yesПриноси към българската археология, 2021
This paper presents jewelry falling into two categories, divided by their material composition – a group of metal items, and a group made from glass. They were found during archaeological excavations of the “Palace Center – East” site in Pliska.
Valeri Grigorov
doaj   +3 more sources

Unification Theories: Rings, Boolean Algebras and Yang–Baxter Systems

open access: yesAxioms, 2023
This paper continues a series of papers on unification constructions. After a short discussion on the Euler’s relation, we introduce a matrix version of the Euler’s relation, E I π+U=O.
Florin F. Nichita
doaj   +1 more source

Technical elements on the rings in men’s artistic gymnastics—a systematic review [PDF]

open access: yesJournal of Men's Health, 2023
Although rings can move freely in all possible directions, by which they differ from all other apparatuses, physical performance at highest level is essetial in men’s artistic gymnastics to fulfill the exercise’s technical requirements in the interest
Dušan Đorđević   +10 more
doaj   +1 more source

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