Results 1 to 10 of about 63 (57)
3.6 mW Active-Electrode ECG/ETI Sensor System Using Wideband Low-Noise Instrumentation Amplifier and High Impedance Balanced Current Driver [PDF]
Sensors, 2023 An active electrode (AE) and back-end (BE) integrated system for enhanced electrocardiogram (ECG)/electrode-tissue impedance (ETI) measurement is proposed. The AE consists of a balanced current driver and a preamplifier. To increase the output impedance,
Xuan Tien Nguyen +2 more
doaj +3 more sources
Fully Integrated Biopotential Acquisition Analog Front-End IC [PDF]
Sensors, 2015 A biopotential acquisition analog front-end (AFE) integrated circuit (IC) is presented. The biopotential AFE includes a capacitively coupled chopper instrumentation amplifier (CCIA) to achieve low input referred noise (IRN) and to block unwanted DC ...
Haryong Song +3 more
doaj +4 more sources
Applied Sciences, 2020 This paper proposes a low noise readout integrated circuit (IC) with a chopper-stabilized multipath operational amplifier suitable for a Wheatstone bridge sensor.
Kwonsang Han +7 more
doaj +2 more sources
Applied Sciences, 2019 This paper presents a low-noise multi-path operational amplifier for high-precision sensors. A chopper stabilization technique is applied to the amplifier to remove offset and flicker noise.
Jaesung Kim +7 more
doaj +2 more sources
IEEE Access, 2023 This paper presents a low-noise chopper-stabilized zero-drift amplifier with successive approximation register (SAR)-assisted automatic offset calibration loop (AOCL).
Gibae Nam +9 more
doaj +1 more source
IEEE Access, 2022 Resistive bridge sensors are used in many application areas to measure changes in physical parameters. To amplify the resistive changes from sensing elements with high precision, various offset contributors in the resistive bridge and amplifiers should ...
Mookyoung Yoo +5 more
doaj +1 more source
Microbially influenced corrosion and rust tubercle formation on sheet piles in freshwater systems
Environmental Microbiology, Volume 25, Issue 10, Page 1796-1815, October 2023., 2023 Abstract The extent of how complex natural microbial communities contribute to metal corrosion is still not fully resolved, especially not for freshwater environments. In order to elucidate the key processes, we investigated rust tubercles forming massively on sheet piles along the river Havel (Germany) applying a complementary set of techniques.
Annika Fiskal +9 more
wiley +1 more source
Hyaluronan Receptors as Mediators and Modulators of the Tumor Microenvironment
Advanced Healthcare Materials, Volume 12, Issue 5, February 17, 2023., 2023 Hyaluronan is a major component of the tumor microenvironment (TME) that plays pro‐tumorigenic and carcinogenic functions. These functions are mediated by different hyaladherins, namely CD44, RHAMM, TLR2, and 4, LYVE‐1, HARE and layilin. The respective signaling pathways relevant to the modulation of the TME and potential cancer therapies are discussed
Ana M. Carvalho +2 more
wiley +1 more source
The impact of pubertal DHEA on the development of visuospatial oscillatory dynamics
Human Brain Mapping, Volume 43, Issue 17, Page 5154-5166, December 1, 2022., 2022 Abstract The adolescent brain undergoes tremendous structural and functional changes throughout puberty. Previous research has demonstrated that pubertal hormones can modulate sexually dimorphic changes in cortical development, as well as age‐related maturation of the neural activity underlying cognitive processes.
Madison H. Fung +8 more
wiley +1 more source
Compressed‐DMD for Electromechanical Mode Estimation from High‐Dimensional Ambient Data
International Transactions on Electrical Energy Systems, Volume 2022, Issue 1, 2022., 2022 Accurate and rapid estimation of electromechanical mode plays an important role in sensing the security situation of power systems. In this paper, the Compressed Dynamic Mode Decompensation (Compressed‐DMD) based estimation approach was proposed to extract the electromechanical mode from high‐dimensional ambient data measured by the synchrophasor ...
Shujia Guo +5 more
wiley +1 more source