Results 51 to 60 of about 1,703,706 (235)

Structures of mycobacterial 3‐methylcrotonyl‐CoA carboxylase reveal carrier‐domain translocation between catalytic sites

open access: yesFEBS Letters, EarlyView.
Mycobacterial 3‐methylcrotonyl‐CoA carboxylase uses a mobile biotin‐carrying domain to shuttle a carboxyl group between two catalytic sites, enabling carboxylation of 3‐methylcrotonyl‐CoA during leucine breakdown. Cryo‐electron microscopy captures the carrier at both sites and reveals an inward loop movement that may prevent futile rebinding to the ...
Ajit Yadav   +2 more
wiley   +1 more source

The Coordinate Particle Filter - a novel Particle Filter for high dimensional systems [PDF]

open access: yes2015 IEEE International Conference on Robotics and Automation (ICRA), 2015
Parametric filters, such as the Extended Kalman Filter and the Unscented Kalman Filter, typically scale well with the dimensionality of the problem, but they are known to fail if the posterior state distribution cannot be closely approximated by a density of the assumed parametric form.
Manuel Wüthrich   +4 more
openaire   +3 more sources

Adaptive particle filter for localization problem in service robotics

open access: yesMATEC Web of Conferences, 2018
In this paper we present a statistical approach to the likelihood computation and adaptive resampling algorithm for particle filters using low cost ultrasonic sensors in the context of service robotics.
Heilig Alexander   +3 more
doaj   +1 more source

On the Adaptivity of Unscented Particle Filter for GNSS/INS Tightly-Integrated Navigation Unit in Urban Environment

open access: yesIEEE Access, 2021
Tight integration algorithms fusing Global Navigation Satellite System (GNSS) and Inertial Navigation System (INS) have become popular in many high-accuracy positioning and navigation applications.
Oliviero Vouch   +3 more
doaj   +1 more source

The Shewanella oneidensis Fic enzyme SoFic targets the switch‐I region of EF‐Tu for AMPylation

open access: yesFEBS Letters, EarlyView.
Fic enzymes mediate diverse post‐translational modifications across all domains of life, including AMPylation. Prokaryotic EF‐Tu can be AMPylated and deAMPylated by the conserved Fic enzyme SoFic. Structural and biochemical approaches were used to characterize the effect of AMPylation on EF‐Tu, SoFic's enzymatic activities, and the enzyme‐target ...
Svenja Runge   +6 more
wiley   +1 more source

Particle Filter on Episode

open access: yesCoRR, 2019
20 pages, 21 figures, https://www.youtube.com/watch?v ...
Ryuichi Ueda   +2 more
openaire   +2 more sources

Autonomous crowds tracking with box particle filtering and convolution particle filtering [PDF]

open access: yesAutomatica, 2016
Autonomous systems such as Unmanned Aerial Vehicles (UAVs) need to be able to recognise and track crowds of people, e.g. for rescuing and surveillance purposes. Large groups generate multiple measurements with uncertain origin. Additionally, often the sensor noise characteristics are unknown but measurements are bounded within certain intervals.
Allan De Freitas   +4 more
openaire   +5 more sources

On the Convergence, Bias and Degeneracy Properties of Iterative Multiple Disturbance Particle Filtering

open access: yesIEEE Access
The interest of this paper is the design of Bayesian particle filters for nonlinear state estimation (target tracking) applications. Particle filters employ a point mass representation of the probability densities using a set of weighted particles, in ...
Deepthi Kattula   +2 more
doaj   +1 more source

Unsupervised Learning Grouping-Based Resampling for Particle Filters

open access: yesIEEE Access, 2019
Conventional resampling for particle filters suffers from discarding much potentially useful information due to using less information of spatial distribution of sampling particles set.
Weiming Yang   +4 more
doaj   +1 more source

An Up-Sampled Particle Filter Fusion Technique and Its Application in Synthetic Aperture Radar Imaging

open access: yesIEEE Journal of Microwaves, 2022
Global positioning system (GPS) and inertial measurement units (IMUs) are often combined to produce navigation systems for airborne imaging platforms. The current state-of-the-art radar technology allows for radars to pulse at very high rates.
Brian M. Sun   +4 more
doaj   +1 more source

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