Results 71 to 80 of about 4,370,382 (329)

Analysis of Dynamics Characteristic of Ring Chain Under Transmission Fault Loading

open access: yesJixie chuandong, 2019
Aiming at the transient impact of the abrupt load on the ring chain under the fault of the scraper conveyor chain jammed,taking the Φ18 mm×64 mm C class mining ring chain as the research object,by using the ANSYS/LS-DYNA finite element software,the ...
Song Ruihan   +4 more
doaj  

Ethyl 5-amino-1-(4-chloro-2-nitrophenyl)-1H-pyrazole-4-carboxylate

open access: yesActa Crystallographica Section E, 2009
In the molecule of the title compound, C12H11ClN4O4, the pyrazole ring is coplanar with the amino and ethoxycarbonyl groups within 0.026 (2) and 0.105 (2) Å, respectively.
Hamid Latif Siddiqui   +4 more
doaj   +1 more source

Rheology of Ring Polymer Melts: From Linear Contaminants to Ring/Linear Blends

open access: yes, 2011
Ring polymers remain a major challenge to our current understanding of polymer dynamics. Experimental results are difficult to interpret because of the uncertainty in the purity and dispersity of the sample.
Alexander Y. Grosberg   +6 more
core   +1 more source

Structural instability impairs function of the UDP‐xylose synthase 1 Ile181Asn variant associated with short‐stature genetic syndrome in humans

open access: yesFEBS Letters, EarlyView.
The Ile181Asn variant of human UDP‐xylose synthase (hUXS1), associated with a short‐stature genetic syndrome, has previously been reported as inactive. Our findings demonstrate that Ile181Asn‐hUXS1 retains catalytic activity similar to the wild‐type but exhibits reduced stability, a looser oligomeric state, and an increased tendency to precipitate ...
Tuo Li   +2 more
wiley   +1 more source

An amphiphilic pseudo[1]catenane: neutral guest-induced clouding point change

open access: yesBeilstein Journal of Organic Chemistry, 2018
The hydrophobic/hydrophilic ratio in a molecule largely affects its assembled properties in aqueous media. In this study, we synthesized a new bicyclic compound which could dynamically change its hydrophobic/hydrophilic ratio by chemical stimulus.
Tomoki Ogoshi   +2 more
doaj   +1 more source

(2R,4R)-4-(2-Ethoxy-2-oxoethyl)-2,6,6-trimethyl–2-oxo-1,3,6,2λ5-dioxazaphosphocan-6-ium iodide

open access: yesActa Crystallographica Section E, 2012
The title compound, C11H23NO5P+·I−, consists of an eight-membered cationic heterocyclic ring in a boat–chair conformation. The ring features a tetraalkylammonium N and a methylphosphonate P atom.
Bradford W. Fulfer   +2 more
doaj   +1 more source

Cooperative Dynamics of an Artificial Stochastic Resonant System

open access: yes, 2009
We have investigated cooperative dynamics of an artificial stochastic resonant system, which is a recurrent ring connection of neuron-like signal transducers (NST) based on stochastic resonance (SR), using electronic circuit experiments.
Badzey   +20 more
core   +1 more source

Descending chain conditions for graded rings [PDF]

open access: yesProceedings of the American Mathematical Society, 1992
It is proved that if R R is a perfect (resp. Artinian) strongly graded ring whose ground subring is, modulo its Jacobson radical, a finite direct product of finite-dimensional simple algebras over (nondenumerable) algebraically closed fields, then the grading group cannot contain an infinite abelian subgroup (resp.
openaire   +2 more sources

Cell wall target fragment discovery using a low‐cost, minimal fragment library

open access: yesFEBS Letters, EarlyView.
LoCoFrag100 is a fragment library made up of 100 different compounds. Similarity between the fragments is minimized and 10 different fragments are mixed into a single cocktail, which is soaked to protein crystals. These crystals are analysed by X‐ray crystallography, revealing the binding modes of the bound fragment ligands.
Kaizhou Yan   +5 more
wiley   +1 more source

Crystal structure and conformational analysis of 2-hydroxy-3-(2-methylprop-1-en-1-yl)naphthalene-1,4-dione

open access: yesActa Crystallographica Section E: Crystallographic Communications, 2016
In the structure of the title compound, C14H12O3, the substituent side chain, in which the H atoms of both methyl groups are disordered over six equivalent sites, lies outside of the plane of the naphthalenedione ring.
Sannyele Alcantara Emiliano   +4 more
doaj   +1 more source

Home - About - Disclaimer - Privacy