Results 61 to 70 of about 2,410,131 (286)

Adaptive Sliding Mode Controller for Servo Actuator System with Friction

Journal 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., Muntadher Mohammed Salih, MSc student   +1 more
doaj  

TORQUE RIPPLE RATE REDUCTION OF 6/4 SWITCHED RELUCTANCE MOTOR USING SLIDING MODE LEARNING CONTROLS

Mağallaẗ Al-kūfaẗ Al-handasiyyaẗ
This paper presents a sliding mode control for reducing the torque ripple of a 6/4 switched reluctance motor. Several types of sliding mode control based on the current variable are implemented: conventional sliding mode control, learning sliding mode ...
Zahraa Razaq Mohammed, Abdal-Razak Shehab Hadi   +1 more
doaj   +1 more source

Output feedback sliding mode control based on adaptive sliding mode disturbance observer

Measurement + Control, 2022
In this paper, an adaptive sliding mode disturbance observer is designed to counteract the disturbance actively. By designing the adaptive laws, the assumptions on the disturbance are relaxed in the proposed observer, its first derivative upper bound is ...
Chen Yunjun, Jiang Chao, Dong Jiuzhi, Zhao Zhanshan   +3 more
doaj   +1 more source

Pharmacological chromatin remodeling enhances response to estrogen therapy in ER+ breast cancer

Molecular Oncology, EarlyView.
Estrogen therapy elicits clinical benefit in ~ 30% of patients with endocrine‐resistant estrogen receptor (ER)‐positive breast cancer. Based on findings that ER transcriptional activation underlies response to estrogen therapy, we tested the effects of epigenetic dysregulation via pharmacological inhibition of histone deacetylases (HDACi).
Anneka L. Johnson Thomas, Barbara Karakyriakou, Patricia C. Muskus, Alyssa M. Roberts, Justin Rendleman, Alexa Warren, Hanxu Lu, Kimberly A. Birmingham, Malone K. Friedman, Abigail E. Goen, Huijuan Yang, Owen M. Wilkins, Fred W. Kolling, Eugene Demidenko, Julie M. Jorns, Brock C. Christensen, Todd W. Miller   +16 more
wiley   +1 more source

Spatial biology in cancer epigenetics

Molecular Oncology, EarlyView.
Spatial epigenomics combines molecular profiling with tissue architecture to reveal how gene regulation is organized within intact tissues. In cancer, these technologies uncover the mechanisms driving tumor heterogeneity and microenvironmental interactions, opening new opportunities for biomarker discovery and precision medicine.
Eva Crespo‐García, Manel Esteller
wiley   +1 more source

Castration‐resistant prostate cancer cells are addicted to the high activity of cyclin‐dependent kinase 2

Molecular Oncology, EarlyView.
We show that emergence of castration‐resistant prostate (CRPC) is associated with significant upregulation of cyclins that positively regulate cyclin‐dependent kinase 2 (CDK2) and concomitant downregulation of CDK4 cyclins. This renders CRPC cells dependent on the high activity of CDK2, and CDK2 inhibitors synergistically sensitize CRPC cells to both ...
Joyeeta Chatterjee, Alessia Marin, Shivani Yalala, Harri M. Itkonen   +3 more
wiley   +1 more source

Optimization of EHA sliding mode controller based on spider wasp algorithm

Zhongguo Jianchuan Yanjiu
ObjectiveThis paper proposes using the Spider Wasp Optimization (SWO) algorithm to achieve precise position control of an electro-hydrostatic actuator (EHA) while reducing the parameter tuning difficulty of the EHA sliding mode controller and improving ...
Weibo LI, Hao ZHANG, Chenghu XU, Maojie ZHANG, Hualiang FANG   +4 more
doaj   +1 more source

A Comparative Experimental Study of Robust Sliding Mode Control Strategies for Underactuated Systems

IEEE Access, 2018
This paper presents a comprehensive comparative study for the tracking control of a class of underactuated nonlinear uncertain systems. A given nonlinear model of the underactuated system is, at first stage, transformed into an input output form and the ...
Sami Ud Din, Qudrat Khan, Fazal Ur Rehman, Rini Akmeliawanti   +3 more
doaj   +1 more source

Regulation of the lncRNA NEAT1 by p53‐ΔNp63 crosstalk modulates the DNA damage response and therapeutic efficacy in HNSCC

Molecular Oncology, EarlyView.
In head and neck squamous cell carcinoma (HNSCC) p53 and p63 exert opposite roles on the transcription regulation of the lncRNA NEAT1. Under basal conditions, p53 levels are low and p63 represses NEAT1 expression. Upon genotoxic stress, p53 is rapidly induced, displacing p63 from the NEAT1 promoter leading to NEAT1 transcriptional activation and ...
Sara De Domenico, Veronica La Banca, Silvia D'Amico, Stefano Scalera, Sara Nicolai, Angelo Peschiaroli   +5 more
wiley   +1 more source

Towards improving the Statscan X-ray image quality through sliding mode control of the C-arm [PDF]

, 2012
Includes abstract.Includes bibliographical references.This dissertation investigates methods for improving the image quality of a digital radiography system. The Lodox Statscan™ X-ray system provides a full-body scanned image for initial diagnosis.
Esmail, Mohammed
core   +1 more source