Results 81 to 90 of about 48,454 (295)

Analysis of the Navigation of Magnetic Microrobots through Cerebral Bifurcations for Targeted Drug Delivery

Advanced Intelligent Systems, EarlyView.
The motion of magnetic microrobots through cerebral bifurcations depends on various parameters such as the microrobots size, the blood velocity, and the imposed magnetic field gradients, among others. This work presents an in‐depth analysis of the effects of these parameters and equations predicting the required magnetic gradients based on the ...
Pedro G. Alves, Maria Pinto, Rosa Moreira, Derick Sivakumaran, Fabian Landers, Maria Guix, Bradley J. Nelson, Andreas D. Flouris, Salvador Pané, Josep Puigmartí‐Luis, Tiago S. Mayor   +10 more
wiley   +1 more source

AKG‐VO: Adaptive Keyframe Generation Method for Improving Visual Odometry in Autonomous Vehicles

Advanced Intelligent Systems, EarlyView.
An adaptive keyframe generation method for pose estimation is proposed, incorporating optical flow‐based interframe gap estimation and video frame interpolation techniques. By limiting interframe gaps, meaningful keyframes are generated to enhance tracking reliability.
Donghyun Lee, I Made Putra Arya Winata, Beomsu Cho, Junghyun Oh   +3 more
wiley   +1 more source

An Interpretation of the Geometric Meaning of the Finite Difference and the Function Derivative through the Use of the Finite Element Method Tools

Механика машин, механизмов и материалов, 2016
In the present article on the basis of earlier formulated planspatial problem of the finite elements method the concept of finite differences for the twodimensional continuous environment is developed.
Hrant A. Gevorgyan
doaj  

Unifying adjacency, Laplacian, and signless Laplacian theories

Ars Mathematica Contemporanea
The final version of the article to be appear in Ars Mathematica ...
Samanta, Aniruddha, Deepshikha, Das, Kinkar Chandra   +2 more
openaire   +3 more sources

Determinants of pseudo-Laplacians [PDF]

Mathematical Research Letters, 2012
Let X be a compact Riemannian manifold of dimension two or three and let P be a point of X. We derive comparison formulas relating the zeta-regularized determinant of an arbitrary self-adjoint extension of (symmetric) Laplace operator with domain, consisting of smooth functions with compact supports which does not contain P, to the zeta-regularized ...
Tayeb Aissiou, Luc Hillairet, Alexey Kokotov   +2 more
openaire   +3 more sources

Self‐Supervised Learning‐Based Framework for Speckle Reduction of Optical Coherence Tomography Images Using Frame Interpolation

Advanced Intelligent Systems, EarlyView.
In summary, a self‐supervised end‐to‐end framework for OCT image despeckling is proposed, without access to unpaired noisy–clean images or paired noisy–noisy images for training. The despeckling performance has been evaluated on 150 subjects from five retina datasets (121 subjects) and one middle ear dataset (29 subjects). Optical coherence tomography (
Zhiyi Jiang, Yifeng Hao, Jing Dai, Ka‐Wai Kwok   +3 more
wiley   +1 more source

On the construction of L-equienergetic graphs

AKCE International Journal of Graphs and Combinatorics, 2015
For a graph G with n vertices and m edges, and having Laplacian spectrum μ1,μ2,…,μn and signless Laplacian spectrum μ1+,μ2+,…,μn+, the Laplacian energy and signless Laplacian energy of G are respectively, defined as LE(G)=∑i=1n|μi−2mn| and LE+(G)=∑i=1n ...
S. Pirzada, Hilal A. Ganie
doaj   +1 more source

Leveraging Compressed Sensing and Radiomics for Robust Feature Selection for Outcome Prediction in Personalized Ultra‐Fractionated Stereotactic Adaptive Radiotherapy

Advanced Intelligent Systems, EarlyView.
A compressed sensing (CS)‐based feature selection method is proposed to select the most informative elements in the radiomic features extracted from medical images of personalized ultra‐fractionated stereotactic adaptive treatment. The CS‐based approach is able to simplify the feature selection process and enhance the accuracy and robustness of a ...
Yajun Yu, Steve Jiang, Robert Timmerman, Hao Peng   +3 more
wiley   +1 more source

Bemerkenswerte Reaktivität eines 1,2‐Dihydrodialans mit organischen Aziden – vom terminalen Diazido–Dialuman zur pendeluhrartigen Azidbrücke

Angewandte Chemie, EarlyView.
Die Reaktion eines Dihydro‐Dialans, das von einem Hybridliganden (DNI) koordiniert wird, mit organischen Aziden ergibt strukturell unterschiedliche Aluminiumspezies mit Aluminium in niedriger Oxidationsstufe: das erste Diazido‐Dialan, ein Aluminium‐Tetrazol und Produkte der Azid‐Aluminierung.
Xiaobai Wang, Franziska Traeger, Raphael F. Ligorio, Nico Graw, Regine Herbst‐Irmer, Anna Krawczuk, Malte Fischer, Dietmar Stalke   +7 more
wiley   +1 more source

Eigenvalues of the Laplacian on Forms [PDF]

Proceedings of the American Mathematical Society, 1982
Some bounds for eigenvalues of the Laplace operator acting on forms on a compact Riemannian manifold are derived. In case of manifolds without boundary we give upper bounds in terms of the curvature, its covariant derivative and the injectivity radius.
openaire   +2 more sources