Results 121 to 130 of about 123,498 (281)
A Study of the Transfer Function of Chopper Amplifiers [PDF]
, 1964 The chopper amplifier is frequently used in several types of d.c and a.c amplifiers as well as in d.c servomechanisms employing a.c control elements. In this paper the transfer function of the chopper amplifier is derived for a sinusoidal input signal ...
MIZUKAMI, Kōichi, HAYASHI, Shigenori
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Hybrid Inverters With Dual Switching Frequencies for Switched Reluctance Motors
Energy Science &Engineering, EarlyView.A hybrid dual‐switching‐frequency inverter for SRMs is proposed, combining SiC and IGBT devices based on rotor inductance. The method enables accurate current tracking with simple hysteresis control, significantly reducing torque ripple, vibration, and acoustic noise while cutting inverter cost compared to full‐SiC solutions.
Fares S. El‐Faouri +4 more
wiley +1 more source
Diagnosis of bacteraemia in neonatal foals using 16S rRNA high‐throughput sequencing
Equine Veterinary Journal, EarlyView.Abstract Background Sepsis is an important cause of morbidity and mortality in foals. Early diagnosis can improve outcome but is complicated by non‐specific clinical signs and delayed confirmation of infection via blood culture. Molecular assays represent a rapid and more sensitive alternative.
Flavie Payette +7 more
wiley +1 more source
Exploration, EarlyView.The deficiency of PNLDC1 exacerbates the advancement of CRC. PNLDC1 interacts with TUBB4B mRNA to regulate the p53–p21–CDK2–cyclin E2 pathway, thereby influencing the G2/M phase of the cell cycle. ABSTRACT Colorectal cancer (CRC) remains a leading cause of cancer‐related mortality, highlighting the urgent need for novel therapeutic strategies.
Lexin Liu +18 more
wiley +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
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FlexMat, EarlyView.Abstract Early diagnosis of hepatocellular carcinoma (HCC) remains challenging because conventional serum biomarkers, especially alpha‐fetoprotein (AFP), show limited sensitivity for early‐stage disease. Recent progress in engineered molecular diagnostics provides new opportunities to improve HCC detection through integrated material, molecular, and ...
Jingzhi Xue +5 more
wiley +1 more source
Illuminating point‐of‐care diagnostics with aggregation‐induced emission biosensors
FlexMat, EarlyView.This review highlights the application of aggregation‐induced emission luminogens (AIEgens) in point‐of‐care (POC) diagnostics for disease biomarker detection. It systematically examines a range of biosensing platforms, including lateral flow immunoassays, microfluidic chips, and electrochemiluminescence sensors, alongside their utility in detecting ...
Danni Hu +3 more
wiley +1 more source
A 36 mu W Rail-to-Rail-Input Chopper Stabilized Amplifier using Correlated Double Sampling
, 2013 This paper describes a chopper stabilized amplifier, obtained using an input chopper for modulation, an AC coupling for offset rejection and a correlated double sampling structure for demodulation, avoiding ripple spurs.
Baschirotto, A +5 more
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iMeta, EarlyView.The Human Biomarker Navigator integrates the disease continuum, biomarker dynamics, cross‐organ biomarker networks, biomarker classification, and technology‐driven paradigms. It maps how biomarkers link multi‐system physiology and pathology across the nervous, respiratory, endocrine, circulatory, immune, digestive, urinary, reproductive, and ...
Meng‐Yao Li +29 more
wiley +1 more source
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
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