Results 31 to 40 of about 116,095 (257)

Collecting Large Datasets of Unambiguous Structural Restraints for Protein Structure Determination by 4D Proton-Detected Solid-State NMR. [PDF]

open access: yesChemphyschem
Proton detection, nonuniform sampling in 4D spectra, multiplexing, deuteration, and stereospecific labeling of methyl groups allowed for the collection of several hundred unambiguous long‐range distance restraints by solid‐state NMR for the rigid core of the bactofilin BacA.
Chevelkov V, Lange S, Lange A.
europepmc   +2 more sources

Hybrid Spatial Data Model for Indoor Space: Combined Topology and Grid

open access: yesISPRS International Journal of Geo-Information, 2017
The construction and application of an indoor spatial data model is an important prerequisite to meet the requirements of diversified indoor spatial location services.
Zhiyong Lin   +4 more
doaj   +1 more source

Hull Shape Design Optimization with Parameter Space and Model Reductions, and Self-Learning Mesh Morphing

open access: yesJournal of Marine Science and Engineering, 2021
In the field of parametric partial differential equations, shape optimization represents a challenging problem due to the required computational resources.
Nicola Demo   +3 more
doaj   +1 more source

Subspace Topologies in Central Extensions

open access: yesJournal of Algebra, 2001
In 1993 \textit{P. H. Kropholler} and \textit{J. S. Wilson} constructed a countable torsion-free residually finite nilpotent group of class 2 and a finitely generated torsion-free residually finite centre-by-metabelian group, both of whose profinite completions contain an element of prime order [J. Pure Appl. Algebra 88, No.
openaire   +1 more source

Topology Change in Canonical Quantum Cosmology

open access: yes, 1997
We develop the canonical quantization of a midisuperspace model which contains, as a subspace, a minisuperspace constituted of a Friedman-Lema\^{\i}tre-Robertson-Walker Universe filled with homogeneous scalar and dust fields, where the sign of the ...
A. Vilenkin   +34 more
core   +1 more source

An Efficient and Robust Topology Optimization Method for Thermoelastically Damped Microresonators

open access: yesApplied Sciences, 2023
The challenges of computational cost and robustness are critical obstacles in topology optimization methods, particularly for the iterative process of optimizing large-scale multiphysical structures.
Yu Fu, Li Li, Yujin Hu
doaj   +1 more source

On the topology of free paratopological groups

open access: yes, 2012
The result often known as Joiner's lemma is fundamental in understanding the topology of the free topological group $F(X)$ on a Tychonoff space$X$. In this paper, an analogue of Joiner's lemma for the free paratopological group $\FP(X)$ on a $T_1$ space $
Elfard, Ali Sayed, Nickolas, Peter
core   +1 more source

Restricted Interval Valued Neutrosophic Sets and Restricted Interval Valued Neutrosophic Topological Spaces [PDF]

open access: yesNeutrosophic Sets and Systems, 2016
In this paper we introduce the concept of restricted interval valued neutrosophic sets (RIVNS in short). Some basic operations and properties of RIVNS are discussed.
Anjan Mukherjee   +2 more
doaj  

An extension theorem for sober spaces and the Goldman topology

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2003
Goldman points of a topological space are defined in order to extend the notion of prime G-ideals of a ring. We associate to any topological space a new topology called Goldman topology. For sober spaces, we prove an extension theorem of continuous maps.
Ezzeddine Bouacida   +3 more
doaj   +1 more source

Topological Subspace-Induced Bound State in the Continuum [PDF]

open access: yesPhysical Review Letters, 2017
We propose and experimentally realize a new kind of bound states in the continuum (BICs) in a class of systems constructed by coupling multiple identical one-dimensional chains, each with inversion symmetry. In such systems, a specific separation of the Hilbert space into a topological and a nontopological subspace exists.
Xiao, Yixin   +3 more
openaire   +3 more sources

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