Results 111 to 120 of about 3,714 (283)

A Wideband Current Amplifier with DC-offset Cancellation Utilizing Chopper Modulation

, 2019
A wideband current amplifier with DC-offset cancellation utilizing chopper modulation is proposed. Combining series–series feedback with backgate driven choppers, a wideband current amplifier with DC-offset cancellation is realized.
Horng-Yuan Shih; Yu-Chuan Chang; Cheng-Wei Yang
core   +1 more source

Alginate from seaweed and microbes: Sources, green extraction, functional properties, and food applications

Food Biomacromolecules, EarlyView.
Abstract Alginate, a renewable polysaccharide produced by brown seaweeds and selected bacterial species, has gained significant attention due to its tunable gelation behavior, biocompatibility, and wide utility in food, biomedical, and packaging applications.
Mehvish Habib, Sakshi Singh, Kulsum Jan, Khalid Bashir   +3 more
wiley   +1 more source

Design of an SAR-Assisted Offset-Calibrated Chopper CFIA for High-Precision 4–20 mA Transmitter Front Ends

Applied Sciences
In loop-powered 4–20 mA transmitter systems, sensors like temperature, pressure, flow, and gas sensors are chosen based on specific application requirements.
Jian Ren, Yiqun Niu, Bin Liu, Meng Li, Yansong Bai, Yuang Chen   +5 more
doaj   +1 more source

Metal‐dependent regulated cell death: Molecular architecture and translational frontiers

iMeta, EarlyView.
Intracellular metal dyshomeostasis orchestrates distinct regulated cell death programs, including iron‐driven ferroptosis, copper‐mediated cuproptosis, calcicoptosis, newly designated zincoptosis, mnoptosis, and coptosis. This review systematically delineates their molecular architectures—spanning from Sorafenib‐induced lipid peroxidation and ...
Haoliang Hu, Zhe Chen, Yaqi Li, Jiayi Peng, Jiangang Cao, Hong Zhou, Mengqi Wang, Yuejia Du, Hailin Wu, Huiqin Zhao, Shifang Huang, Dianmei Yu, Meiqing Liu, Olga V. Shevchenko, Natalia Yu. Matveeva, Yiyuan Yang, Kerui Huang, Deguan Lv, Junxia Min, Linxi Chen, Fudi Wang   +20 more
wiley   +1 more source

A 250 °C Low-Power, Low-Temperature-Drift Offset Chopper-Stabilized Operational Amplifier with an SC Notch Filter for High-Temperature Applications

Applied Sciences
This paper proposes a three-stage op amp based on the SOI (silicon-on-insulator) process, which achieves a low offset voltage and temperature coefficient across a wide temperature range from −40 °C to 250 °C.
Zhong Yang, Jiaqi Li, Jiangduo Fu, Jiayin Song, Qingsong Cai, Shushan Qiao   +5 more
doaj   +1 more source

Chopper offset stabilized current sensing amplifier

Current sensing is an indispensable technique employed across various uses, prominently in facilitating energy conservation, protection, and motor drives.
Low, Thien Shawn
core  

Realization of a Low-Distortion and Low-Noise CMOS Fully Differential Chopper Stabilized Amplifier

, 2014
本論文主要目的在設計與實現低雜訊及低失真的CMOS全差動截波穩定型放大器，應用於放大感測器所輸出的低頻且微弱的訊號 (如生醫系統的感測器感測出的訊號)，並實現一個二階GM-C帶通濾波器，以及外加一個低通濾波器以構成完整之感測器讀出電路。此電路主要是利用調變(Modulation)的技巧，使其能有效地降低放大器電路本身所產生的低頻雜訊以及輸入偏移電壓所造成的解析度誤差。本論文所實現出的電路，在利用CIC所提供的TSMC0.35um CMOS 2P4M製程技術來進行模擬。全差動截波穩定型放大器中之運算放大器，
Chen, Li Ju, 陳利如
core  

Low-power amplifier chopper stabilization for a digital-to-analog converter [PDF]

, 2008
Includes bibliographical references (p. 59).Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2008.Modern portable media devices demand low-power and low-noise performance from the internal ...
Jordy, Keith (Keith M.)
core  

Sel1l preserves condylar cartilage matrix homeostasis by regulating PERK signaling

Interdisciplinary Medicine, EarlyView.
Our study revealed that the expression of Sel1l was downregulated in OA cartilage and that Sel1l deficiency induced cartilage catabolism. Mechanistically, Sel1l depletion aberrantly activated PERK signaling and resulted in ER stress. PERK inhibition rescued the phenotype of Sel1l‐deficient chondrocytes and alleviated TMJOA pathogenesis.
Xinqi Huang, Zinan Cen, Zhihe Zhao, Xiao Cen   +3 more
wiley   +1 more source

S100A9 promotes pulmonary arterial hypertension by regulating mitochondria–endoplasmic reticulum interaction‐mediated inflammatory injury of endothelial cells

Interdisciplinary Medicine, EarlyView.
Macrophage‐derived S100 calcium‐binding protein A9 (S100A9) promotes the pathological progression of pulmonary arterial hypertension (PAH). S100A9 upregulates the interaction between signal‐transducing adaptor protein 2 and leucine‐rich repeat kinase 2, thereby regulating mitochondria–endoplasmic reticulum (ER) contact.
Chen Gong, Long Chen, Yiting Zhao, Xiaohe Wang, Qiang Yuan, Xiaofeng Fang, Liuyi Li, Yinbo Xu, Shumei Jiang, Guangwen Xu, Ke Meng, Delong Wang, Kangli Cao, Jianlong Sheng, Liling Guo, Shichun Shen   +15 more
wiley   +1 more source