Results 1 to 10 of about 19,071 (209)
Chemoresistance induces enhanced adhesion and transendothelial penetration of neuroblastoma cells by down-regulating NCAM surface expression [PDF]
BMC Cancer, 2006 Background Drug resistance to chemotherapy is often associated with increased malignancy in neuroblastoma (NB). One explanation for the link between resistance and malignancy might be that resistance facilitates cancer progression and invasion.
Kotchetkov Rouslan +8 more
doaj +3 more sources
UKF-Based Reconfigurable Attitude Parameters Estimation and Magnetometer Calibration
IEEE Transactions on Aerospace and Electronic Systems, 2012 A reconfigurable unscented Kalman filter (UKF)-based estimation algorithm for magnetometer biases and scale factors is proposed as a part of the attitude estimation scheme of a pico satellite. Unlike existing algorithms, in this paper, scale factors are not treated, together with other parameters, as part of the state vector; they are estimated ...
Halil Ersin Soken, Chingiz Hajiyev
exaly +3 more sources
On the Accuracy of the One-step UKF and the Two-step UKF
2022 IEEE 61st Conference on Decision and Control (CDC), 2022 The most accurate version of the unscented Kalman filter (UKF) involves the construction of two ensembles. To reduce computational cost, however, UKF is often implemented without the second ensemble. This simplification comes at a price, however, since, for linear systems, the one-step variation of the two-step UKF does not specialize to the classical ...
Goel, Ankit, Bernstein, Dennis S.
openaire +2 more sources
Adaptive IMM-UKF for Airborne Tracking
Aerospace, 2023 In this paper, we propose a nonlinear tracking solution for maneuvering aerial targets based on an adaptive interacting multiple model (IMM) framework and unscented Kalman filters (UKFs), termed as AIMM-UKF. The purpose is to obtain more accurate estimates, better consistency of the tracker, and more robust prediction during sensor outages.
Arroyo Cebeira, Álvaro +1 more
openaire +3 more sources
MISSILE POSITION ESTIMATION USING UNSCENTED KALMAN FILTER
Barekeng, 2022 Missiles are military rocket weapons having an automatic control system to locate its targets or adjust its direction. Indonesia itself, which is a country of archipelago, covers air area of its largest territory, followed by sea area and land area ...
Teguh Herlambang, Subchan Subchan
doaj +1 more source
Laryngeal ectopic tonsil as a cause of dysphonia: A case report
Otolaryngology Case Reports, 2020 Ectopic tonsils have been described in a number of anatomic locations in the head and neck; the pathophysiology remains unclear. Given the rarity of these lesions, there are no guidelines regarding treatment.We present a case report of lymphoid nodule ...
Fabrizio Bandino +3 more
doaj +1 more source
Filtering performance analyizing for Relative Navigation using Single Difference Carrier-Phase GPS [PDF]
Journal of Astronomy and Space Sciences, 2008 Satellite formation flying can provide the platform for interferometric observation to acquire the precise data and ensure the flexibility for space mission.
In-Kwan Park +4 more
doaj +1 more source
Comparisons of nonlinear estimators for wastewater treatment plants [PDF]
, 2012 This paper deals with five existing nonlinear estimators (filters), which include Extended Kalman Filter (EKF), Extended H-infinity Filter (EHF), State Dependent Filter (SDF), State Dependent H-Infinity Filter (SDHF) and Unscented Kalman Filter (UKF ...
Abdul Wahab, Hamimi Fadziati Binti +2 more
core +1 more source
Chemoresistance acquisition induces a global shift of expression of aniogenesis-associated genes and increased pro-angogenic activity in neuroblastoma cells [PDF]
, 2009 BACKGROUND: Chemoresistance acquisition may influence cancer cell biology. Here, bioinformatics analysis of gene expression data was used to identify chemoresistance-associated changes in neuroblastoma biology.
Barth, Susanne +10 more
core +6 more sources
Drone Tracking Using an Innovative UKF [PDF]
, 2017 This paper addresses the drone tracking problem, using a model based on the Frenet-Serret frame. A kinematic model in 2D, representing intrinsic coordinates of the drone is used. The tracking problem is tackled using two recent filtering methods. On the one hand, the Invariant Extended Kalman Filter (IEKF), introduced in [1] is tested, and on the other
Marion Pilté +2 more
openaire +1 more source