Results 71 to 80 of about 24,390 (215)

Persistent topology for natural data analysis - A survey

open access: yes, 2017
Natural data offer a hard challenge to data analysis. One set of tools is being developed by several teams to face this difficult task: Persistent topology.
A Adcock   +36 more
core   +1 more source

Fuzzy Mathematical Morphology Approach In Image Processing

open access: yes, 2008
{"references": ["P.Burillo, N.Frago, R.Fuentes, Fuzzy Morphological\nOperators in Image Processing, Marthware & Soft\nComputing 10 (2003), 8-100", "P.Burillo, N.Frago, R.Fuentes, Generation Fuzzy\nMorphological Morphologies, Marthware & Soft\nComputing 8 (2003), 31-46", "Alper PAHSA, Morphological Image Processing with\nFuzzy Logic, Havacilik ...
Htun, Yee Yee, Dr. Khaing Khaing Aye
openaire   +1 more source

Organotrifluoroborate‐Driven Phase Stabilization and Defect Suppression for Wide‐Bandgap Perovskites

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
A multifunctional additive, trifluoro(pyrrolidin‐1‐ium‐1‐ylmethyl) borate (PyMe‐BF3), leverages B‐F coordination and N‐H hydrogen bonding to passivate undercoordinated Pb2+, fill halide vacancies, and suppress phase segregation. Its preferential enrichment at the buried interface targets the defect‐rich region, enabling simultaneous wide‐bandgap ...
Suzhen Liu   +11 more
wiley   +1 more source

Unsupervised Multi Class Segmentation of 3D Images with Intensity Inhomogeneities

open access: yes, 2017
Intensity inhomogeneities in images constitute a considerable challenge in image segmentation. In this paper we propose a novel biconvex variational model to tackle this task.
Fitschen, Jan Henrik   +2 more
core   +1 more source

Machine Learning‐Driven Classification and Production Capacity Prediction of Tight Sandstone Reservoirs: A Case Study of the Taiyuan Formation, Ordos Basin

open access: yesEnergy Science &Engineering, EarlyView.
On the basis of core and log data, a Bayesian‐Optimized Random Forest model achieved 92.76% accuracy in classifying tight sandstone reservoirs. A gray relational analysis‐derived evaluation index shows > 80% consistency with actual gas zones. ABSTRACT Tight sandstone gas (TSG), an unconventional oil–gas resource, has heterogeneous reservoirs ...
Yin Yuan   +8 more
wiley   +1 more source

Dual Logic Concepts based on Mathematical Morphology in Stratified Institutions: Applications to Spatial Reasoning

open access: yes, 2017
Several logical operators are defined as dual pairs, in different types of logics. Such dual pairs of operators also occur in other algebraic theories, such as mathematical morphology.
Aiguier, Marc, Bloch, Isabelle
core  

Intrinsic chiroptical responsivity in self‐powered organic photodiodes for polarization‐tunable optical convolution

open access: yesInfoMat, EarlyView.
Self‐powered chiral organic photodiodes function as polarization‐sensitive convolutional filters for circularly polarized light‐driven optical convolutional neural networks. This conceptually innovative architecture enables dynamic weight modulation, bias‐free operation, and exceptional noise resilience, boosting feature extraction fidelity from 0.15 ...
Lixuan Liu   +9 more
wiley   +1 more source

Caste as a Social Kind

open access: yesJournal of Applied Philosophy, EarlyView.
ABSTRACT Gender and race have received significant philosophical attention recently; they are the paradigm cases of social kinds in most philosophical accounts. I argue for the inclusion of caste as a social kind because it affects the lives of many people, and because it presents itself as an important test case for philosophers of social kinds.
Ajinkya Deshmukh
wiley   +1 more source

SciTech News Volume 71, No. 1 (2017) [PDF]

open access: yes, 2017
Columns and Reports From the Editor 3 Division News Science-Technology Division 5 Chemistry Division 8 Engineering Division Aerospace Section of the Engineering Division 9 Architecture, Building Engineering, Construction and Design Section of the ...

core   +1 more source

Optimized Detection of Left Ventricular Hyperpolarized [1‐13C]Pyruvate Signal in Human Cardiac Metabolic Imaging

open access: yesMagnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose This study aimed to improve the analysis of the left ventricular (LV) blood pool hyperpolarized [1‐13C]pyruvate signal for a more reliable quantification of downstream metabolic outcome. Methods Hyperpolarized [1‐13C]pyruvate magnetic resonance spectroscopic images were acquired dynamically at 3 Tesla in 106 participants (NCT03685175).
Fatemeh Khashami   +30 more
wiley   +1 more source

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