Results 221 to 230 of about 123,487 (278)

Male genital lichen sclerosus

Journal of the European Academy of Dermatology and Venereology, EarlyView.
Male genital lichen sclerosus is driven by chronic, occluded exposure of susceptible genital epithelium to urine, rather than infection or autoimmunity. This review synthesizes clinical, anatomical and molecular evidence showing how microincontinence and occlusion initiate inflammation, fibrosis and carcinogenesis, and explains the curative effect of ...
Georgios Kravvas, Rory Barry, Richard E. Watchorn, Christopher B. Bunker   +3 more
wiley   +1 more source

Magneto-optical Kerr effect in an A-type antiferromagnet. [PDF]

Nat Commun
Sunko V, Ahsanullah S, Jain V, Weber S, Kumaran S, Yan J, Orenstein J, Ovchinnikov D.   +7 more
europepmc   +1 more source

A Time-Differential BOCDA Sensor Measurement System Applied to a 1 km Long SMF Using a Semiconductor Optical Amplifier as a Pump Chopper. [PDF]

Sensors (Basel)
Choi BH.
europepmc   +1 more source

Design of a Photo-Assisted Electrochemical Potentiostat for Preconcentration-Free Detection of Heavy Metal Copper Ions. [PDF]

Sensors (Basel)
Hao Y, Huang H, Zhao C, Geng Y, Luo Y, Zhao C, Suo H.   +6 more
europepmc   +1 more source

Excitonic-Vibrational Interaction at 2D Material/Organic Molecule Interfaces Studied by Time-Resolved Sum Frequency Generation. [PDF]

Nanomaterials (Basel)
Chen H, Lian Y, Zhou T, Li H, Li J, Liu X, Huang Y, Liu WT.   +7 more
europepmc   +1 more source

Superextensive electrical power from a quantum battery. [PDF]

Light Sci Appl
Hymas K, Muir JB, Tibben D, van Embden J, Hirai T, Dunn CJ, Gómez DE, Hutchison JA, Smith TA, Quach JQ.   +9 more
europepmc   +1 more source

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Flicker Noise Analysis on Chopper Amplifier

2021 19th IEEE International New Circuits and Systems Conference (NEWCAS), 2021
This paper aims to maximize the performance of the chopper amplifier, considering the design trade-off between noise and power consumption. To achieve the goal, we identify and model the various sources of flicker noise in the amplifier and switches using Verilog-AMS language. Then, we build a chopper amplifier circuit and investigate the influences of
Ting Zhou, Zhuo Gao, Jiajie Huang, Yewangqing Lu, Mingyi Chen, Yongfu Li 0002   +5 more
openaire   +1 more source

Noise Analysis and Simulation of Chopper Amplifier [PDF]

APCCAS 2006 - 2006 IEEE Asia Pacific Conference on Circuits and Systems, 2006
Conventional SPICE-like simulators are not adequate for the noise simulation of the chopper amplifier, which typically has no DC operating point. This paper discusses the noise properties of the chopper amplifier in both time domain and frequency domain and presents a method of simulating chopper amplifier noise behavior with the RF simulator?SpectreRF.
Tao Yin, Haigang Yang, Quan Yuan, Guoping Cui   +3 more
openaire   +2 more sources

Analysis of a Chopper Amplifier [PDF]

IETE Journal of Research, 1970
Choppers are often required for obtaining low drift performance of low level d.c. amplifiers. The chopper amplifier basically consists of a modulator, an a.c. amplifier, a synchronous demodulator and a low pass filter. The drift-free performance results from the use of the ‘drift-less’ a.c. amplifier for amplification.The a.c.
openaire   +1 more source

A chopper dc instrumental amplifier

Measurement Techniques, 1987
Because of their low zero drift chopper, dc amplifiers [I, pp. 22-23] are widely used in measuring equipment. The ratio of the maximum cut-off frequency of such an amplifier to its modulation frequency must be carefully chosen since an increase of its carrier frequency magnifies the effect of high-frequency pulse noise on the output voltage [2] in ...
A. E. Gudilin, S. V. Zhmak
openaire   +1 more source