Results 61 to 70 of about 97,874 (341)
Function‐driven design of a surrogate interleukin‐2 receptor ligand
FEBS Letters, EarlyView.Interleukin (IL)‐2 signaling can be achieved and precisely fine‐tuned through the affinity, distance, and orientation of the heterodimeric receptors with their ligands. We designed a biased IL‐2 surrogate ligand that selectively promotes effector T and natural killer cell activation and differentiation. Interleukin (IL) receptors play a pivotal role in
Ziwei Tang +9 more
wiley +1 more source
Temperature sensitive oscillator [PDF]
, 1986 An oscillator circuit for sensing and indicating temperature by changing oscillator frequency with temperature comprises a programmable operational amplifier which is operated on the roll-off portion of its gain versus frequency curve and has its output ...
Kleinberg, L. L.
core +1 more source
Three-Stage Operational Amplifier with Frequency Compensation Using Cascade Zero [PDF]
, 2023 Yu-Rin Jin +3 more
openalex +1 more source
Mechanisms of parasite‐mediated disruption of brain vessels
FEBS Letters, EarlyView.Parasites can affect the blood vessels of the brain, often causing serious neurological problems. This review explains how different parasites interact with and disrupt these vessels, what this means for brain health, and why these processes matter. Understanding these mechanisms may help us develop better ways to prevent or treat brain infections in ...
Leonor Loira +3 more
wiley +1 more source
OTA a wide common mode low power
Ingeniería Investigación y Desarrollo, 2016 This paper presents the design of an operational transconductance amplifier OTA operating in sub-threshold region for low power consumption. Simulations were performed in SYNOPSYS tools program for a 180nm technology.
Héctor Iván Gómez-Ortiz +2 more
doaj +1 more source
Isosceles detector provides maximum resolution in expanded range [PDF]
, 1971 Dynamic range expansion system for radio frequency /RF/ signal detection equipment consists of RF amplifiers, RF amplitude modulated detectors, and operational amplifier.
Watterson, R. F.
core +1 more source
Time after time – circadian clocks through the lens of oscillator theory
FEBS Letters, EarlyView.Oscillator theory bridges physics and circadian biology. Damped oscillators require external drivers, while limit cycles emerge from delayed feedback and nonlinearities. Coupling enables tissue‐level coherence, and entrainment aligns internal clocks with environmental cues.
Marta del Olmo +2 more
wiley +1 more source
Design Procedure of Cascaded Multilevel Inverter for High-Power Amplifier in SONAR System
EnergiesIn recent years, there has been a trend toward expanding the operating frequency range and increasing the output power of Sound Navigation and Ranging (SONAR) systems to enhance their acoustic detection capabilities.
Jejin Jang +3 more
doaj +1 more source
Improving the Signal to Noise Ratio of QTF Preamplifiers Dedicated for QEPAS Applications
Applied Sciences, 2020 The signal-to-noise ratio (SNR) is a major factor that limits the detection sensitivity of quartz-enhanced photoacoustic spectroscopy (QEPAS) sensors. The higher the electrical signal level compared to the noise amplitude is the lower the concentration ...
Piotr Z. Wieczorek +2 more
doaj +1 more source
Signal conditioning circuit apparatus [PDF]
, 1975 A signal conditioning circuit is described including operational amplifier, a variable source of offset potential, and four resistive impedance. The circuit has constant input impedance independent of gain and offset adjustments.
Holland, V. B.
core +1 more source