Results 51 to 60 of about 1,629,109 (265)

Robust and dynamic transactive energy system using Tsypkin–Polyak theorem

open access: yesIET Smart Grid, 2018
In this study, a robust and dynamic transactive energy system in smart grid (SG) environment is proposed based on the Tsypkin–Polyak theorem. A key factor of the proposed system is to consider the uncertainties in electrical grid parameters.
Mohammad Rayati   +3 more
doaj   +1 more source

Design a Second Order Sliding Mode Controller for Electrical Servo Drive Systems [PDF]

open access: yesEngineering and Technology Journal, 2019
The aim of this paper is to design and study a powerful second-order sliding mode controller for electrical servo drive systems. The suggested controller can successfully overcome the chattering problem that was usually facing such systems during ...
Shams Hashim, Ahmed Hamoudi
doaj   +1 more source

Fault diagnosis and fault tolerant control strategies for aerospace systems

open access: yes, 2016
This work presents two active fault tolerant control systems for aerospace applications. The former case study regards an aircraft longitudinal autopilot and the latter one a satellite attitude control system, both in case of faults affecting the ...
Castaldi, P   +7 more
core   +1 more source

Modeling of a fully actuated quadrotor and control optimization using novel chaotic birds of prey algorithm variants

open access: yesDiscover Robotics
Unmanned aerial vehicles, particularly quadrotors, present significant control challenges due to their nonlinear, underactuated, and coupled dynamics. This paper presents a comprehensive modeling approach for a quadrotor and presents an optimized tuning ...
João Gabriel Piraine Bandeira   +2 more
doaj   +1 more source

Design and Implementation of PI and PID Controller for symmetrical multilevel boost Converter [PDF]

open access: yesEPJ Web of Conferences
In this research, we propose developing and executing PID and PI controllers for a symmetrical multilevel boost converter in Matlab/Simulink. The symmetrical multilevel converter is powered by a 15 V DC generator with a 50 kHz switching frequency ...
El Haji Ikram   +3 more
doaj   +1 more source

Fuzzy Tuner for a Satellite Large Angle Maneuvering Control [PDF]

open access: yesEngineering and Technology Journal, 2005
: This paper presents an Expert controller for a three axes large angle satellite reorientation maneuvers . The controller is a conventional PD controller with a fuzzy auto tuner that uses the quaternion and angular velocities error on each axis to make ...
Sajeda Baker, Qussay Hassan
doaj   +1 more source

Heterogeneity in the Global Practice of Central Nervous System Staging in Pediatric Acute Lymphoblastic Leukemia

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Central nervous system (CNS) involvement in childhood acute lymphoblastic leukemia (ALL) is assessed by cell counting and cytomorphology from cerebrospinal fluid (CSF) and is used for treatment stratification worldwide. The ratio of “CNS2” patients in clinical trials ranges from 3% to 40%, with unclear prognostic significance ...
Laura Almási   +14 more
wiley   +1 more source

FES-Assisted Walking with Spring Brake Orthosis: Simulation Studies

open access: yesApplied Bionics and Biomechanics, 2011
This paper presents a simulation of bipedal locomotion to generate stimulation pulses for activating muscles for paraplegic walking with wheel walker using functional electrical stimulation (FES) with spring brake orthosis (SBO).
R. Jailani   +3 more
doaj   +1 more source

The Role of Hematopoietic Cell Transplantation in Ataxia‐Telangiectasia

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Ataxia‐telangiectasia (A‐T) is a DNA repair disorder characterized by neurodegeneration, immunodeficiency, and cancer predisposition. Hematopoietic cell transplantation (HCT) is an established therapy in related disorders such as Fanconi anemia (FA) and Nijmegen breakage syndrome (NBS), but its role in A‐T is unclear.
Laila Alkhouli   +3 more
wiley   +1 more source

A Rapid Control Prototyping System Design for Temperature Control of Plastic Extruder Based on Labview

open access: yes, 2011
In order to verify the performance of the designed temperature controller of the plastic extruder using supercritical CO2, we developed a Hardware-In-the-Loop (HIL) simulation system.
Zuo, Guokun   +8 more
core   +1 more source

Home - About - Disclaimer - Privacy