Results 71 to 80 of about 910,363 (405)

A continuous integral terminal sliding mode control approach for a class of uncertain nonlinear systems

Measurement + Control, 2019
In this article, the continuous integral terminal sliding mode control problem for a class of uncertain nonlinear systems is investigated. First of all, based on homogeneous system theory, a global finite-time control law with simple structure is ...
Huawei Niu, Qixun Lan, Yamei Liu, Huafeng Xu   +3 more
doaj   +1 more source

Reduced vascular leakage correlates with breast carcinoma T regulatory cell infiltration but not with metastatic propensity

Molecular Oncology, EarlyView.
A mouse model for vascular normalization and a human breast cancer cohort were studied to understand the relationship between vascular leakage and tumor immune suppression. For this, endothelial and immune cell RNAseq, staining for vascular function, and immune cell profiling were employed.
Liqun He, Chiara Testini, Neda Hekmati, Altea Bonello, Aglaia Schiza, Emmanuel Nwadozi, Mia Phillipson, Carina Strell, Michael Welsh   +8 more
wiley   +1 more source

Adaptive Non-singular Terminal Sliding Mode Control for DC-DC Converters

Advances in Electrical and Computer Engineering, 2011
DC-DC converters have some inherent characteristics such as high nonlinearity and time-variation, which often result in some difficulties in designing control schemes.
YU, Y., FAN, L.
doaj   +1 more source

Fast finite-time consensus of a class of high-order uncertain nonlinear systems

, 2010
This paper poses and solves a new problem of consensus control where the task is to make the fixed-topology multi-agent network, with each agent described by an uncertain nonlinear system in chained form, to reach consensus in a fast finite time.
Khoo, Suiyang, Man, Zhihong, Shen, Weixiang, Trinh, Hieu   +3 more
core   +1 more source

Cytoplasmic p21 promotes stemness of colon cancer cells via activation of the NFκB pathway

Molecular Oncology, EarlyView.
Cytoplasmic p21 promotes colorectal cancer stem cell (CSC) features by destabilizing the NFκB–IκB complex, activating NFκB signaling, and upregulating BCL‐xL and COX2. In contrast to nuclear p21, cytoplasmic p21 enhances spheroid formation and stemness transcription factor CD133.
Arnatchai Maiuthed, Kerstin Huebner, Katharina Erlenbach‐Wuensch, Chuanpit Hampel, Daniela Thalheim, Adriana Vial‐Roehe, Bodee Nutho, Susanne Merkel, Arndt Hartmann, Pithi Chanvorachote, Regine Schneider‐Stock   +10 more
wiley   +1 more source

Integral Sliding Mode and Integral Supertwisting Sliding Mode Control for Ship Course-Keeping

IEEE Access
This paper proposes variable structure-based nonlinear control algorithms, including synergetic, terminal synergetic, integral sliding mode, and integral supertwisting sliding mode controllers, for ship course-keeping.
Muhammad Munir Butt, Azhar Iqbal Kashif Butt, Iftikhar Ahmad   +2 more
doaj   +1 more source

Global Terminal Sliding Mode Control With the Quick Reaching Law and Its Application

IEEE Access, 2018
In order to overcome the disadvantages of the conventional sliding mode reaching law, such as the large chattering and the slow convergence rate, an improved quick reaching law is proposed.
Chunbo Xiu, Penghui Guo
doaj   +1 more source

Self Tuning Sliding Mode Control for Quadrotor Waypoint Tracking [PDF]

, 2015
In this paper, self-tuning sliding mode control is proposed to control quadrotor with mass parameter uncertainty on waypoint trajectory tracking. Parameter uncertainty is one of the factor that cause instability of quadrotor.
Agustinah, T. (Trihastuti), Fatoni, A. (Ali), Istiqphara, S. (Swadexi)   +2 more
core  

Sliding mode control for a nonlinear phase-field system

, 2017
In the present contribution the sliding mode control (SMC) problem for a phase-field model of Caginalp type is considered. First we prove the well-posedness and some regularity results for the phase-field type state systems modified by the state-feedback
Barbu, Viorel, Colli, Pierluigi, Gilardi, Gianni, Marinoschi, Gabriela, Rocca, Elisabetta   +4 more
core   +1 more source

Adaptive switching gain for a discrete-time sliding mode controller [PDF]

, 2002
Sliding mode control is a well-known technique capable of making the closed loop system robust with respect to certain kinds of parameter variations and unmodelled dynamics.
Monsees, G., Scherpen, J.M.A.
core   +2 more sources