Results 21 to 30 of about 106,133 (264)

Accurate Online Battery Impedance Measurement Method with Low Output Voltage Ripples on Power Converters

Energies, 2021
The conventional online battery impedance measurement method works by perturbing the duty cycle of the DC-DC power converter and measuring the response of the battery voltage and current. This periodical duty cycle perturbation will continuously generate
Qi Yao, Dylan-Dah-Chuan Lu, Gang Lei
doaj   +1 more source

Assessment of bioelectrical impedance analysis devices for data reliability of body impedance measurements

Frontiers in Nutrition
BackgroundBioelectrical impedance analysis (BIA) devices are widely used for body composition analyses, but their accuracy for body impedance measurements can vary significantly between BIA device models.
Dan Bee Kim, Seong Su Shin, Wan-Seop Kim
doaj   +1 more source

Determination of Transdermal Rate of Metallic Microneedle Array through an Impedance Measurements-Based Numerical Check Screening Algorithm

Micromachines, 2022
Microneedle systems have been widely used in health monitoring, painless drug delivery, and medical cosmetology. Although many studies on microneedle materials, structures, and applications have been conducted, the applications of microneedles often ...
Jingshan Mo, Junqing Liu, Shuang Huang, Baoming Liang, Xinshuo Huang, Cheng Yang, Meiwan Chen, Jing Liu, Tong Zhang, Xi Xie, Jun Guo, Fanmao Liu, Hui-Jiuan Chen   +12 more
doaj   +1 more source

Characterization of Parasitic Impedance in PCB Using a Flexible Test Probe Based on a Curve-Fitting Method

IEEE Access, 2021
Switching in power semiconductors with emerging materials such as silicon carbide (SiC) leads to undesired overvoltages and oscillations that limit switching frequency, largely due to impedance in the current commutation loop.
A. Llamazares, M. Garcia-Gracia, S. Martin-Arroyo   +2 more
doaj   +1 more source

The Relationship Between Physical Activity and Left Ventricular Remodeling in Childhood Cancer Survivors Treated With Anthracyclines: A Cross‐Sectional Study

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Introduction Anthracycline‐related cardiac remodeling precedes heart failure in childhood cancer survivors. The objectives of this study were to determine the relationships between patient‐specific factors, moderate‐to‐vigorous physical activity (MVPA), and cardiac remodeling.
Hari K. Narayan, Sitong Chen, F. Lennie Wong, Nathan Young, Anna Qi, Christopher Davis, Sanjeet Hegde, Nicholas Gloude, Kasey J. Leger, Kelly D. Getz, Francisco Contijoch, Kirsten Ness, Bonnie Ky, Dennis Kuo, Sheri J. Hartman, Saro H. Armenian   +15 more
wiley   +1 more source

A review of online battery impedance spectroscope acquisition method based on power electronic system

Green Energy and Intelligent Transportation
Battery impedance plays a crucial role in battery state monitoring. However, traditional impedance measurements rely on specialized equipment such as electrochemical workstations, incurring high costs and lacking real-time capabilities.
Boyang Li, Ding Luo, Min Zhou, Dong Jiang, An Li   +4 more
doaj   +1 more source

Capacitive, Highly Selective Zeolite-Based Ammonia Sensor for Flue Gas Applications

Chemosensors, 2023
The selective detection of different gas components will remain of huge importance in the future, either in the ambient air or in flue gases, e.g., for controlling purposes of combustion processes.
Thomas Wöhrl, Jaroslaw Kita, Ralf Moos, Gunter Hagen   +3 more
doaj   +1 more source

Impact of Metastatic Patterns on Survival and Response to Therapy in Neuroblastoma

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background While the presence of metastases in neuroblastoma (NB) is a well‐established prognostic factor, the clinical significance of dissemination patterns and tumour burden and their impact on response and survival remains poorly understood.
Mariona Morell‐Daniel, Santiago Pérez‐Hoyos, Aroa Soriano, Ana Coma, Amalia Varo, Raquel Hladun, Gabriela Guillén, Soraya Mico, Marta Garrido, Lourdes Rubio, Alba Rubio‐San‐Simón, Ana Minguez, Ricardo López‐Almaraz, Laura Illade, Miguel F. Segura, Lucas Moreno   +15 more
wiley   +1 more source

Non-Injected broadband impedance estimation based on injected impedance measurement

International Journal of Electrical Power & Energy Systems
As power electronic devices become increasingly connected to power grids, power systems face issues, such as stability and harmonic resonance; broadband harmonic impedance is a key piece of information that helps analyze these issues. This study proposes
Ying Wang, Hao Chen, Liu Yang, Peng Zhang, Shunyi Li   +4 more
doaj   +1 more source

Field-Programmable Gate Array-Based Coating Impedance Detector for Rapid Evaluation of Early Degradation of Protective Coatings

IEEE Access, 2019
In this paper, a novel, compact, And field-programmable gate array (FPGA)-based coating impedance detector (CID 2.0) was proposed to rapidly detect the early degradation of coatings.
Yueh-Lien Lee, Yu-Tong Kuo, Hung-Hsun Chen, Yung-An Hsieh   +3 more
doaj   +1 more source