Results 21 to 30 of about 599,512 (246)

Unified multimode modelling, stability analysis, and reinforced sliding‐mode design of high‐order buck/boost DC–DC converters for DC energy systems

open access: yesIET Energy Systems Integration, 2021
Unified modelling, analysis, and reinforced sliding‐mode design of a high‐order buck/boost converter are proposed for DC energy systems. The high voltage gain with low current stress on the converter’s circuit components will noticeably improve its ...
Chaoyu Dong   +4 more
doaj   +1 more source

Self-Learning Variable Structure Control for a Class of Sensor-Actuator Systems

open access: yesSensors, 2012
Variable structure strategy is widely used for the control of sensor-actuator systems modeled by Euler-Lagrange equations. However, accurate knowledge on the model structure and model parameters are often required for the control design.
Yuesheng Lou   +4 more
doaj   +1 more source

Combined motion control of hydraulic boom based on dynamic surface adaptive fuzzy sliding mode

open access: yesThe Journal of Engineering, 2018
The lifting mechanism on the transfer vehicle is a common electromechanical–hydraulic system. In order to overcome the non-linear and interference that exist in the hydraulic boom combined motion process, a dynamic surface adaptive fuzzy sliding mode ...
Rongan Pan   +4 more
doaj   +1 more source

Unheard and Under‐Supported: Health‐Related Quality of Life in Children, Adolescents, and Young Adults With Sickle Cell Disease

open access: yesPediatric Blood &Cancer, EarlyView.
Abstract Background Sickle cell disease (SCD) is an autosomal recessive hemoglobinopathy affecting millions of individuals worldwide. The clinical expression and psychosocial burden of SCD vary widely across geographical, cultural, and healthcare system contexts, underscoring the need for setting‐specific approaches to assessment.
Desiré Fantasia   +7 more
wiley   +1 more source

Kinematics, dynamics and control design of 4WIS4WID mobile robots

open access: yesThe Journal of Engineering, 2015
Kinematic and dynamic modelling and corresponding control design of a four-wheel-independent steering and four-wheel-independent driving (4WIS4WID) mobile robot are presented in this study.
Ming-Han Lee, Tzuu-Hseng S. Li
doaj   +1 more source

Imaging of High‐Risk Neuroblastoma: Recommendations From SIOPEN Radiology and Nuclear Medicine Specialty Committees

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Neuroblastoma is the most common extracranial solid tumor in early childhood. Its clinical behavior is highly variable, ranging from spontaneous regression to fatal outcome despite intensive treatment. The International Society of Pediatric Oncology Europe Neuroblastoma Group (SIOPEN) Radiology and Nuclear Medicine Specialty Committees ...
Annemieke Littooij   +11 more
wiley   +1 more source

Coordination control strategy for LLCL-filter based grid-tied inverter with indirect sliding mode power control and virtual impedance

open access: yesThe Journal of Engineering, 2019
The LLCL filter is widely used in grid-tied inverter systems due to its small size, low cost and good attenuation for high-frequency harmonics. However, the LLCL filter resonance phenomenon and the wide range of impedance may compromise the system ...
Lizhen Wu, Tengfei Liu, Xiaohong Hao
doaj   +1 more source

Exploring Preferences for a Digital Single‐Session Intervention for Adolescent Siblings of Youth With Cancer

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Introduction Adolescent siblings of children with cancer are at elevated risk for psychosocial problems. Unfortunately, various barriers such as limited family time and resources, conflicting schedules, and psychosocial staffing constraints at cancer centers hinder sibling access to support.
Christina M. Amaro   +10 more
wiley   +1 more source

Suboptimal variable structure control of uncertain nonlinear slowly varying systems

open access: yesSystems Science & Control Engineering, 2018
In this paper, a new robust suboptimal controller is designed to stabilize a class of uncertain nonlinear time-varying systems with slowly varying parameters.
F. Pishkari, T. Binazadeh
doaj   +1 more source

Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM

open access: yesFEBS Letters, EarlyView.
Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley   +1 more source

Home - About - Disclaimer - Privacy