Results 1 to 10 of about 569,916 (267)

Hierarchical and non-hierarchical mineralisation of collagen [PDF]

open access: yesBiomaterials, 2011
Biomineralisation of collagen involves functional motifs incorporated in extracellular matrix protein molecules to accomplish the objectives of stabilising amorphous calcium phosphate into nanoprecursors and directing the nucleation and growth of apatite within collagen fibrils.
Young Kyung Kim, Yan Liu, Franklin Tay
exaly   +3 more sources

Hierarchical algorithms on hierarchical architectures [PDF]

open access: yesPhilosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2020
A traditional goal of algorithmic optimality, squeezing out flops, has been superseded by evolution in architecture. Flops no longer serve as a reasonable proxy for all aspects of complexity. Instead, algorithms must now squeeze memory, data transfers, and synchronizations, while extra flops on locally cached data represent only small costs in time and
D. E. Keyes, H. Ltaief, G. Turkiyyah
openaire   +4 more sources

Concretized structural evolution supported assembly-controlled film-forming kinetics in slot-die coated organic photovoltaics

open access: yesNature Communications, 2023
Bulk-heterojunction structured small-area organic solar cells are approaching 20% power conversion efficiency, but the blurred film-forming kinetics in the fabrication of large-area devices causes significant PCE loss and restrains the potential of ...
Hao Zhang   +6 more
doaj   +1 more source

Recyclable soft photonic crystal film with overall improved circularly polarized luminescence

open access: yesNature Communications, 2023
Existing circularly polarized luminescence materials can hardly satisfy the requirements of both large luminescence dissymmetry factor and high luminescent quantum yield, which hinders their practical applications.
Yonghong Shi   +5 more
doaj   +1 more source

Hierarchical isometry properties of hierarchical measurements

open access: yesApplied and Computational Harmonic Analysis, 2022
Compressed sensing studies linear recovery problems under structure assumptions. We introduce a new class of measurement operators, coined hierarchical measurement operators, and prove results guaranteeing the efficient, stable and robust recovery of hierarchically structured signals from such measurements.
Axel Flinth   +4 more
openaire   +3 more sources

“N‐π‐N” Type Oligomeric Acceptor Achieves an OPV Efficiency of 18.19% with Low Energy Loss and Excellent Stability

open access: yesAdvanced Science, 2022
A novel “N‐π‐N” type oligomeric acceptor of 2BTP‐2F‐T, constructed by two small non‐fullerene acceptor (NFA) units linked with a thiophene π bridge is reported. The 2BTP‐2F‐T not only combines the advantages of small NFA and polymeric acceptors (PYF‐T‐o)
Lili Zhang   +5 more
doaj   +1 more source

Systematic coarse-graining of epoxy resins with machine learning-informed energy renormalization

open access: yesnpj Computational Materials, 2021
A persistent challenge in molecular modeling of thermoset polymers is capturing the effects of chemical composition and degree of crosslinking (DC) on dynamical and mechanical properties with high computational efficiency.
Andrea Giuntoli   +5 more
doaj   +1 more source

Hierarchical Datacubes

open access: yesJournal of Computer and Communications, 2023
Many approaches have been proposed to pre-compute data cubes in order to efficiently respond to OLAP queries in data warehouses. However, few have proposed solutions integrating all of the possible outcomes, and it is this idea that leads the integration of hierarchical dimensions into these responses.
Martin Nevot, Mickaël   +2 more
openaire   +4 more sources

The Construction of Hierarchic and Non-Hierarchic Classifications [PDF]

open access: yesThe Computer Journal, 1968
Many of the cluster methods that are used in the construction of classificatory systems operate on data in the form of a dissimilarity coefficient on a set of objects. In this paper we outline a theoretical framework within which the properties of such methods may be discussed.
N. Jardine, Robin Sibson
openaire   +1 more source

Nucleic acid nanostructure for delivery of CRISPR/Cas9‐based gene editing system

open access: yesInterdisciplinary Medicine, 2023
CRISPR/Cas9 (clustered regularly interspaced short palindromic repeats/CRISPR‐associated protein 9)‐based gene editing system has aroused great interest in many research fields.
Wantao Tang, Jianbing Liu, Baoquan Ding
doaj   +1 more source

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