Results 111 to 120 of about 512,547 (364)
This work presents π–conjugated polymers based on dihydropyrazine (DHP) and ethylenedioxythiophene (EDOT), developed to produce highly conductive, flexible films for printed electronics. By optimizing the DHP and EDOT ratio, strong and compact π–π stacking is achieved, resulting in polymer films with conductivities up to 1700 S cm−1 under ambient ...
Sung Jae Jeon+3 more
wiley +1 more source
Enamel loss following ceramic bracket debonding: A quantitative analysis in vitro.
OBJECTIVE To measure enamel surface changes after ceramic bracket debonding and after cleanup. MATERIALS AND METHODS Forty extracted teeth were scanned in three dimensions using an optical scanner (baseline). Two ceramic bracket systems were placed (19
Sam N. Suliman+3 more
semanticscholar +1 more source
An Alternate Approach to the Lie Bracket on Hochschild Cohomology [PDF]
We define Gerstenhaber's graded Lie bracket directly on complexes other than the bar complex, under some conditions. The Koszul complex of a Koszul algebra in particular satisfies our conditions.
C. Negron, S. Witherspoon
semanticscholar +1 more source
Biquandle virtual brackets [PDF]
We introduce an infinite family of quantum enhancements of the biquandle counting invariant which we call biquandle virtual brackets. Defined in terms of skein invariants of biquandle colored oriented knot and link diagrams with values in a commutative ring [Formula: see text] using virtual crossings as smoothings, these invariants take the form of ...
Sam Nelson+3 more
openaire +3 more sources
From Low Symmetry to High Dissymmetry: Chiral Plasmonic Films of Binary and Nanobipyramid Assemblies
This work develops highly dissymmetric chiral plasmonic thin films by helically assembling gold nano bipyramids within a liquid‐crystal template. Engineering of the chiroptical response is achieved by varying particle size and geometry, as well as preparing binary assemblies.
Martyna Wasiluk+10 more
wiley +1 more source
Summary Background: Using lingual enamel surfaces for bracket placement not only has esthetic advantages, but may also be suitable in terms of reducing frequencies of enamel decalcifications.
M. Knösel+3 more
semanticscholar +1 more source
“Writing” Crystal Phases in Amorphous Calcium Carbonate via Laser‐Induced Patterned Transformations
Laser‐induced crystallization enabling the patterning of amorphous calcium carbonate into various distinct phases is introduced. This approach provides spatial control over polymorph selection, both crystalline and amorphous, inspired by biomineralization pathways.
Hadar Shaked+6 more
wiley +1 more source
Topology Optimization Design of Automotive Engine Bracket
According to the structural characteristics of the automobile engine bracket, the finite element model of the bracket is established. As the connecting part between the engine and the body, the performance requirements of the automobile engine bracket ...
Po Wu, Qi‐hua Ma, Yiping Luo, C. Tao
semanticscholar +1 more source
Orthodontic bracket slot dimensions as measured from entire bracket series.
OBJECTIVE To measure the slot dimensions of an entire series of metal orthodontic brackets. MATERIALS AND METHODS Ten bracket series approximating five complete sets of brackets each were imaged and measured.
P. Brown, W. Wagner, Hyden Choi
semanticscholar +1 more source
Eco‐friendly nanowave‐textured implants produced via femtosecond laser fabrication enhance bone regeneration by orchestrating a precise mechanotransduction cascade. This nanotopography directs mesenchymal stem cell alignment and cytoskeletal organization, triggering changes in nuclear shape and chromatin acetylation that prime cells for osteogenesis ...
Bosu Jeong+15 more
wiley +1 more source