Results 31 to 40 of about 94,660 (301)

Crystal structure of rac-2,3-diphenyl-2,3,5,6-tetrahydro-4H-1,3-thiazin-4-one 1-oxide

open access: yesActa Crystallographica Section E: Crystallographic Communications, 2016
In the title compound, C16H15NO2S [alternative name: rac-2,3-diphenyl-1,3-thiazinan-4-one 1-oxide], the thiazine ring exhibits an envelope conformation, with the S atom forming the flap.
Hemant P. Yennawar   +2 more
doaj   +1 more source

Simulation model of a non‐contact triboelectric nanogenerator based on electrostatic induction

open access: yesEcoMat, 2023
Based on the coupling effects of contact electrification and electrostatic induction, a triboelectric nanogenerator (TENG) can convert mechanical energy into electric power, which is at the cutting edge of alternative energy technology.
Jing You   +6 more
doaj   +1 more source

A biorenewable cyclobutane-containing building block synthesized from sorbic acid using photoenergy

open access: yesiScience, 2022
Summary: A novel cyclobutane-containing diacid building block, CBDA-3, was synthesized from sorbic acid using clean, efficient [2 + 2] photocycloaddition.
Micah Mabin   +4 more
doaj   +1 more source

Derivation alternator rings with idempotent [PDF]

open access: yesTransactions of the American Mathematical Society, 1980
A nonassociative ring is called a derivation alternator ring if it satisfies the identities ( y z ,
Hentzel, Irvin R., Smith, Harry F.
openaire   +1 more source

Wall-crossing integral chow rings of ${\overline {\mathcal {M}}}_{1,n\leq 4}$

open access: yesForum of Mathematics, Sigma
We compute the integral Chow rings of $\overline {\mathcal {M}}_{1,n}$ for $n=3,4$ . The alternative compactifications introduced by Smyth – and studied further by Lekili and Polishchuk – present each of these stacks as a sequence of ...
Luca Battistella, Andrea Di Lorenzo
doaj   +1 more source

Division rings with ranks [PDF]

open access: yes, 2018
Any superrosy division ring is shown to be centrally finite. Furthermore, division rings satisfying a generalized chain condition on definable subgroups are studied.
Hempel, Nadja, Palacín Cruz, Daniel
core   +1 more source

On Linear Coding over Finite Rings and Applications to Computing

open access: yesEntropy, 2017
This paper presents a coding theorem for linear coding over finite rings, in the setting of the Slepian–Wolf source coding problem. This theorem covers corresponding achievability theorems of Elias (IRE Conv. Rec. 1955, 3, 37–46) and Csiszár (IEEE Trans.
Sheng Huang, Mikael Skoglund
doaj   +1 more source

Hereditary Radicals in Associative and Alternative Rings [PDF]

open access: yes, 1965
In the first part of this paper we shall consider associative rings, pointing out where associativity is required. In the second part we shall consider not necessarily associative rings and in particular alternative rings.A property S of rings is said to
T. Anderson, A. Suliński, N. Divinsky
core   +1 more source

Hypercentral units in alternative loop rings [PDF]

open access: yes, 2005
Let L be an RA loop, that is, a loop whose loop rings are alternative, but not associative, rings (in any characteristic). We find necessary and sufficient conditions under which the hypercentral units in the integral loop ring ZL are ...
Goodaire, Edgar G.   +5 more
core   +1 more source

Crystal structure of O-benzyl-l-tyrosine N-carboxy anhydride

open access: yesActa Crystallographica Section E: Crystallographic Communications, 2017
In the title compound, C17H15NO4 (alternative name; O-benzyl-l-tyrosine N-carboxy anhydride), the oxazolidine ring is planer, with an r.m.s. deviation of 0.039 Å. The benzyloxy and benzyl rings are almost coplanar, making a dihedral angle of 0.078 (10)°,
Aya Inada, Hitoshi Kanazawa
doaj   +1 more source

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