Results 41 to 50 of about 210,575 (315)

Fixed Time Disturbance Observer Based Sliding Mode Control for a Miniature Unmanned Helicopter Hover Operations in Presence of External Disturbances

open access: yesIEEE Access, 2020
This paper presents a novel fixed time sliding mode disturbance observer (FTSMDO) based second-order fixed time sliding mode control (FTSMC) for small scale unmanned helicopter to do hover operations in the presence of external disturbances. Sliding mode
Ihsan Ullah, Hai-Long Pei
doaj   +1 more source

Robust Sliding Mode Control for Flexible Joint Robotic Manipulator via Disturbance Observer [PDF]

open access: yesInterdisciplinary Description of Complex Systems, 2019
In a flexible joint robotic manipulator, parametric variations and external disturbances result in mismatch uncertainties thus posing a great challenge in terms of manipulator’s control. This article investigates non-linear control algorithms for desired
Sayyar Ahmad   +2 more
doaj   +1 more source

COMP–PMEPA1 axis promotes epithelial‐to‐mesenchymal transition in breast cancer cells

open access: yesMolecular Oncology, EarlyView.
This study reveals that cartilage oligomeric matrix protein (COMP) promotes epithelial‐to‐mesenchymal transition (EMT) in breast cancer. We identify PMEPA1 (protein TMEPAI) as a novel COMP‐binding partner that mediates EMT via binding to the TSP domains of COMP, establishing the COMP–PMEPA1 axis as a key EMT driver in breast cancer.
Konstantinos S. Papadakos   +6 more
wiley   +1 more source

Application on the Series Multi-cells Converter for Implementation and Comparison between a Higher Order Sliding Mode Control and Simple Order [PDF]

open access: yesJournal of Electrical and Electronics Engineering, 2015
In this paper, a sliding mode control of a series multi-cells converter is introduced. Multi-cells topologies have gained a lot of popularity because of their advantages over classical energy conversion structures.
SKENDER Mohamed Redha   +1 more
doaj  

Design and implementation of double-integral sliding-mode controller for brushless direct current motor speed control

open access: yesAdvances in Mechanical Engineering, 2017
This article presents a double-integral sliding-mode controller with an adaptive proportional–integral–derivative observer for brushless direct current motor speed controller. First, an integral sliding-mode control is designed based on the motor dynamic
Seng-Chi Chen, Chun-Yi Kuo
doaj   +1 more source

Engineered extracellular vesicles enriched with the miR‐214/199a cluster enhance the efficacy of chemotherapy in ovarian cancer

open access: yesMolecular Oncology, EarlyView.
Loss of the miR‐214/199a cluster is associated with recurrence in ovarian cancer. Engineered small extracellular vesicles (m214‐sEVs) elevate miR‐214‐3p/miR‐199a‐5p in tumor cells, suppress β‐catenin, TLR4, and YKT6 signaling, reprogram tumor‐derived sEV cargo, reduce chemoresistance and migration, and enhance carboplatin efficacy and survival in ...
Weida Wang   +12 more
wiley   +1 more source

Keratin 19 as a prognostic marker and contributing factor of metastasis and chemoresistance in high‐grade serous ovarian cancer

open access: yesMolecular Oncology, EarlyView.
Keratin 19 (KRT19) is overexpressed in high‐grade serous ovarian cancer with high levels of Kallikrein‐related peptidases (KLK) 4–7 and is associated with poor survival. In vivo analyses demonstrate that elevated KRT19 increases peritoneal tumour burden.
Sophia Bielesch   +13 more
wiley   +1 more source

Sliding Modes in Consensus Control

open access: yes, 2021
In this chapter, an overview of the possibility of applying Sliding Mode Control to Consensus Control problems is proposed. The theoretical concepts at the basis of Consensus Control are first introduced to form a common basis useful to understand the ...
Massimo Zambelli, Antonella Ferrara
core   +1 more source

Dual PI3K/AKT and CDK4/6 inhibition reveals selective sensitivity in an SHH medulloblastoma stem cell model

open access: yesMolecular Oncology, EarlyView.
Targeted therapy was evaluated in SHH medulloblastoma using neuroepithelial stem cell (NES) and tumor‐derived NES‐like (tNES) models in 2D monolayers and 3D spheroids. PI3K, AKT, and CDK4/6 inhibitors had minimal effects in NES but markedly reduced viability and growth and induced apoptosis in tNES cells, revealing distinct therapeutic vulnerabilities.
Monika Lukoseviciute   +4 more
wiley   +1 more source

Adaptive Sliding Mode Controller for Servo Actuator System with Friction

open access: yesJournal of Engineering, 2017
This paper addresses the use of adaptive sliding mode control for the servo actuator system with friction. The adaptive sliding mode control has several advantages over traditional sliding mode control method.
Shibly Ahmed Al-Samarraie, Ass. Prof. Dr.   +1 more
doaj  

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