Results 81 to 90 of about 116,826 (318)

Fractals in radar and radio physics: 40 years of research experience

open access: yesФизика волновых процессов и радиотехнические системы, 2019
A review of the main scientific results on creation of new information technologies on the basis of textures, fractals, fractional operators and non-linear dynamic methods which were obtained by the author has been presented in this work. The researchers
A.A. Potapov
doaj   +1 more source

Physical Origin of Temperature Induced Activation Energy Switching in Electrically Conductive Cement

open access: yesAdvanced Science, EarlyView.
The temperature‐induced Arrhenius activation energy switching phenomenon of electrical conduction in electrically conductive cement originates from structural degradation within the biphasic ionic‐electronic conduction architecture and shows percolation‐governed characteristics: pore network opening dominates the low‐percolation regime with downward ...
Jiacheng Zhang   +7 more
wiley   +1 more source

Particle transport modelling for D/T ratio control experiments in JET

open access: yesNuclear Fusion
This study presents results from particle transport modelling for D/T ratio control experiments conducted during the JET DTE3 campaign. TRANSP interpretative and JETTO predictive simulations for D and T densities were performed and their results are ...
K.K. Kirov   +18 more
doaj   +1 more source

Cocrystal Engineering of Conjugated Polymer Blends via External Electric Field for Enhanced Charge Transport

open access: yesAdvanced Science, EarlyView.
We report, for the first time, an external electric field (EEF) strategy to achieve co‐aggregation of conjugated polymer blends (i.e., poly(3‐butylthiophene) and poly[3,3'''‐dialkyl‐quaterthiophene]s) in the solution and thus their cocrystals in thin films, demonstrating cocrystal‐improved charge mobilities due to the synergy of two components ...
Yanan Guo, Hao Zheng, Juan Peng
wiley   +1 more source

Fractal-Based Multi-Criteria Feature Selection to Enhance Predictive Capability of AI-Driven Mineral Prospectivity Mapping

open access: yesFractal and Fractional
AI-driven mineral prospectivity mapping (MPM) is a valid and increasingly accepted tool for delineating the targets of mineral exploration, but it suffers from noisy and unrepresentative input features.
Tao Sun   +8 more
doaj   +1 more source

Fractal Surfaces

open access: yesJournal of Mathematical Analysis and Applications, 1990
A compact metric space X with the family F of functions \(f_ i: X\to X,\quad 1\leq i\leq N,\) is said to be an iterated function system (X,F). The family H(X) of closed subsets of X is assumed to be equipped with the Hausdorff metric. Provided the maps \(f_ i\), \(1\leq i\leq N\), are contractive, the set-valued map \(\hat f:\;H(X)\to H(X),\) defined ...
openaire   +1 more source

Graph‐Theory Approach to Element Miscibility and Alloy Design

open access: yesAdvanced Science, EarlyView.
Graph and network theory enables pathway toward complex multiscale interactions between different elements for alloy design or interface engineering. Utilizing element's inherent properties and preferential interactivity, favorable mixed material formation, solubility and miscibility can be predicted.
Andrew Martin   +6 more
wiley   +1 more source

Computerized texture analysis of atypical immature myeloid precursors in patients with myelodysplastic syndromes: an entity between blasts and promyelocytes

open access: yesDiagnostic Pathology, 2011
Background Bone marrow (BM) blast count is an essential parameter for classification and prognosis of myelodysplastic syndromes (MDS). However, a high degree of cell atypias in bone marrow hemopoietic cells may be found in this group of clonal disorders,
Lorand-Metze Irene GH   +3 more
doaj   +1 more source

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