24 citations · 87 across the 19 of their papers we have counts for
19 papers
Joint Estimation of Sea State and Vessel Parameters Using a Mass-Spring-Damper Equivalence Model
Ranjeet K. Tiwari, Daniel Sgarioto, Peter Graham +3
Real-time sea state estimation is vital for applications like shipbuilding and maritime safety. Traditional methods rely on accurate wave-vessel transfer functions to estimate wave…
A Sequential Game Framework for Target Tracking
Daniel Leal, Ngoc Hung Nguyen, Alex Skvortsov +2
This paper investigates the application of game-theoretic principles combined with advanced Kalman filtering techniques to enhance maritime target tracking systems. Specifically, t…
Slip length for a viscous flow over spiky surfaces
Alexei T. Skvortsov, Denis S. Grebenkov, Leon Chan +1
For a model of a 3D coating composed of a bi-periodic system of parallel riblets with gaps we analytically derive an approximate formula for the effective slip length (an offset fr…
Survival in a nanoforest of absorbing pillars
Denis S. Grebenkov, Alexei T. Skvortsov
We investigate the survival probability of a particle diffusing between two parallel reflecting planes toward a periodic array of absorbing pillars. We approximate the periodic cel…
Diffusion towards a nanoforest of absorbing pillars
Denis S. Grebenkov, Alexei T. Skvortsov
Spiky coatings (also known as nanoforests or Fakir-like surfaces) have found many applications in chemical physics, material sciences and biotechnology, such as superhydrophobic ma…
Blocker effect on diffusion resistance of a membrane channel. Dependence on the blocker geometry
Leonardo Dagdug, Alexei T. Skvortsov, Alexander M. Berezhkovskii +1
Being motivated by recent progress in nanopore sensing, we develop a theory of the effect of large analytes, or blockers, trapped within the nanopore confines, on diffusion flow of…
Homogenization of one-dimensional layered and graded structures
Michael B. Muhlestein, Alexei T. Skvortsov
The homogenization of one-dimensional acoustic or elastic structures of finite extent is considered. A new homogenization method based on transfer matrices is derived. The new homo…
Mean first-passage time to a small absorbing target in three-dimensional elongated domains
Denis S. Grebenkov, Alexei T. Skvortsov
We derive an approximate formula for the mean first-passage time (MFPT) to a small absorbing target of arbitrary shape inside an elongated domain of a slowly varying axisymmetric p…
Mean first-passage time to a small absorbing target in an elongated planar domain
Denis S. Grebenkov, Alexei T. Skvortsov
We derive an approximate but fully explicit formula for the mean first-passage time (MFPT) to a small absorbing target of arbitrary shape in a general elongated domain in the plane…
Intermittent Information-Driven Search for Underwater Targets
Branko Ristic, Alex Skvortsov
The problem is area-restricted search for targets using an autonomous mobile sensing platform. Detection is imperfect: the probability of detection depends on the range to the targ…
Dispersion of particles by a strong explosion
Timothy C. DuBois, Milan Jamriska, Alex Skvortsov
The dynamics of particle transport under the influence of localised high energy anomalies (explosions) is a complicated phenomena dependent on many physical parameters of both the…
Bayesian likelihood-free localisation of a biochemical source using multiple dispersion models
Branko Ristic, Ajith Gunatilaka, Ralph Gailis +1
Localisation of a source of a toxic release of biochemical aerosols in the atmosphere is a problem of great importance for public safety. Two main practical difficulties are encoun…
Autonomous search for a diffusive source in an unknown environment
Branko Ristic, Alex Skvortsov, Andrew Walker
The paper presents an approach to olfactory search for a diffusive emitting source of tracer (e.g. aerosol, gas) in an environment with unknown map of randomly placed and shaped ob…
Tracer Dispersion in a Multi-compartment Structure
A. Skvortsov, B. Suendermann, G. Gamble +3
An experimental study of the tracer dispersion in a complex structure is presented. A point source of tracer (dyed salt) was placed inside a multi-compartment structure embedded in…
Tracer dispersion in the turbulent convective layer
Alex Skvortsov, Milan Jamriska, Timothy C DuBois
Experimental results for passive tracer dispersion in the turbulent surface layer under convective conditions are presented. In this case, the dispersion of tracer particles is det…
Modelling and Performance analysis of a Network of Chemical Sensors with Dynamic Collaboration
Alex Skvortsov, Branko Ristic
The problem of environmental monitoring using a wireless network of chemical sensors with a limited energy supply is considered. Since the conventional chemical sensors in active m…
Statistical characterisation of bio-aerosol background in an urban environment
Milan Jamriska, Timothy C. DuBois, Alex Skvortsov
In this paper we statistically characterise the bio-aerosol background in an urban environment. To do this we measure concentration levels of naturally occurring microbiological ma…
Monitoring and prediction of an epidemic outbreak using syndromic observations
Alex Skvortsov, Branko Ristic
The paper presents an algorithm for syndromic surveillance of an epidemic outbreak formulated in the context of stochastic nonlinear filtering. The dynamics of the epidemic is mode…
Scaling laws of passive tracer dispersion in the turbulent surface layer
Alex Skvortsov, Milan Jamriska, Timothy C. DuBois
Experimental results for passive tracer dispersion in the turbulent surface layer under stable conditions are presented. In this case, the dispersion of tracer particles is determi…