Results 71 to 80 of about 1,155,602 (287)
Artificial molecular machines and motors—Design and control of nanoscale motion
FEBS Letters, EarlyView.Molecules are constantly moving because of thermal fluctuations, but random motion alone cannot be exploited to perform directional tasks. Artificial molecular machines use chemical, electrical, or light energy to bias this motion. Molecular shuttles, rotary motors, and supramolecular pumps illustrate how nanoscale movement can be controlled and ...
Leonardo Andreoni, Alberto Credi
wiley +1 more source
Design of operational amplifier CMOS
, 2009 The present work deals with issues of a design of operational transconductance amplifier in technology CMOS AMIS 0,7 um.
Navrátil, Jakub
core
Design of a low offset operational amplifier for current detection
Dianzi Jishu YingyongAiming at the requirement of current detection for operational amplifier performance, a new low offset operational amplifier circuit is proposed. The closed-loop current sampling circuit is composed of low-loss op-amp, PMOS tube and resistor.
Li Xin, Yu Chen, Yang Senlin
doaj +1 more source
A context‐dependent modulatory role for eIF6 in acquired resistance to vemurafenib in melanoma
FEBS Letters, EarlyView.Acquired resistance to vemurafenib upregulates the translation factor eIF6 in melanoma cells. Silencing eIF6 in resistant cells reduces proliferation and partially restores drug sensitivity, whereas its overexpression increases sensitivity across melanoma lines regardless of BRAF status, via modulation of mTOR, S6K, and MAPK signaling.
George Kyriakopoulos +9 more
wiley +1 more source
, 2017 In readout circuits of infrared detectors, the settling time of the operational amplifier is crucial to transfer radiation signals. Hence, this paper proposes an optimization of the sizes of the load transistors pair, M3 and M4 in Figure 1, to improve ...
Qiao J(乔俊) +3 more
core
Bio-isolated DC operational amplifier [PDF]
, 1974 Possibility of shocks from leakage currents can be reduced by use of isolated preamplifiers. Amplifier consists of battery-powered operational amplifier coupled by means of light-emitting diodes to another amplifier which may be grounded and operated ...
Lee, R. D.
core
A chopper-stabilized CMOS operational amplifier [PDF]
The chopper-stabilized operational amplifier has good low frequency noise properties. Unfortunately a simple technique for simulation of the chopper-stabilized operational amplifier has not been available.
Ann, Seung-Han
core +5 more sources
Study and stability improving of operational amplifiers in the capacitance sensor drivers [PDF]
Tekhnologiya i Konstruirovanie v Elektronnoi Apparature, 2008 Driver for capacitance loads more than 10 nF is developed and investigated. Driver provides high operational stability of the transducer by decoupling operational amplifier output from reactive load.
Hotra Z. Yu. +2 more
doaj
The ubiquitin system in normal and infected germinal center B cells
FEBS Letters, EarlyView.The ubiquitin system plays a central role in germinal center (GC) B cells, influencing differentiation to long‐lived memory B cells. Oncogenic gammaherpesviruses gain access to memory B cells by establishing latency in GC B cells. Mapping ubiquitin mechanisms in normal and infected GC B cells will define specific molecular circuits in B cells germane ...
Destiny Davis +2 more
wiley +1 more source