Results 81 to 90 of about 98,123 (253)

AGPLO‐Driven Optimisation for Accurate Segmentation of Papillary Thyroid Carcinoma in Medical Imaging

open access: yesCAAI Transactions on Intelligence Technology, EarlyView.
ABSTRACT Papillary Thyroid Carcinoma (PTC) is the most prevalent thyroid malignancy, and accurate lesion segmentation is essential for clinical diagnosis and treatment planning. Metaheuristic optimisation algorithms have been widely used in Multi‐Threshold Image Segmentation (MTIS), but many existing methods suffer from an imbalance between global ...
Jing Ruan   +14 more
wiley   +1 more source

Cat Swarm Optimization with Lévy Flight for Link Load Balancing in SDN

open access: yesJournal of Telecommunications and Information Technology
Efficient network communications with optimal network path selection play a key role in the modern world. Conventional path selection algorithms often face numerous challenges resulting from their limited scope of application.
Kwaku Kwarteng   +7 more
doaj   +1 more source

A Unified Theory for the Effects of Stellar Perturbations and Galactic Tides on Oort Cloud Comets [PDF]

open access: yes, 2010
We examine the effects of passing field stars on the angular momentum of a nearly radial orbit of an Oort cloud comet bound to the Sun. We derive the probability density function (PDF) of the change in angular momentum from one stellar encounter ...
Benjamin F. Collins   +9 more
core   +2 more sources

Morphology and scaling in the noisy Burgers equation: Soliton approach to the strong coupling fixed point

open access: yes, 1997
The morphology and scaling properties of the noisy Burgers equation in one dimension are treated by means of a nonlinear soliton approach based on the Martin-Siggia-Rose technique. In a canonical formulation the strong coupling fixed point is accessed by
A. Das   +14 more
core   +1 more source

Guest Editorial: Unfolding the potential of 5G technologies for future wireless networks

open access: yesIET Networks, EarlyView.
Abstract With the rapid advancements in mobile Internet and smartphones, data traffic in current mobile communication systems is growing exponentially. At the same time, demands for lower latency, increased robustness, and higher energy efficiency are becoming more stringent.
Gwanggil Jeon   +3 more
wiley   +1 more source

Direct observation of Levy flight of holes in bulk n-InP

open access: yes, 2012
We study the photoluminescence spectra excited at an edge side of n-InP slabs and observed from the broadside. In a moderately doped sample the intensity drops off as a power-law function of the distance from the excitation - up to several millimeters ...
A. F. Molisch   +14 more
core   +1 more source

Practical Day‐Ahead Gas Generator Dispatch Optimisation for Enhancing the Reserved Capacity

open access: yesIET Smart Energy Systems, EarlyView.
Practical day‐ahead gas generator dispatch optimisation model is proposed to enhance the system reserved capacity. ABSTRACT In order to reduce carbon dioxide emissions, traditional coal‐fired power generation has been strictly limited in China recently, which has led to the problem of reserved capacity shortage. As one of the critical east provinces of
Shengyuan Liu   +6 more
wiley   +1 more source

Levy flight as a robotic search pattern [PDF]

open access: yes, 2012
Thesis (S.B.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2012.Cataloged from PDF version of thesis.Includes bibliographical references (p.
Saldivar, Orlando
core  

Super-diffusion around the rigidity transition: Levy and the Lilliputians

open access: yes, 2010
By analyzing the displacement statistics of an assembly of horizontally vibrated bidisperse frictional grains in the vicinity of the jamming transition experimentally studied before, we establish that their superdiffusive motion is a genuine Levy flight,
Biroli, G.   +4 more
core   +5 more sources

Cities Under Pressure: Evidence on Tourism Growth and Neighbourhood Change in Europe

open access: yesThe Political Quarterly, EarlyView.
Abstract Across European cities, the rapid growth of tourism is reshaping urban life in increasingly contested ways. While the sector continues to support local economies, it is also increasingly associated with the sense that neighbourhoods are becoming less liveable for residents.
Mafalda Batalha
wiley   +1 more source

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