Results 31 to 40 of about 9,665 (208)
A High TCMRR, Inherently Charge Balanced Bidirectional Front-End for Multichannel Closed-Loop Neuromodulation [PDF]
, 2019 This paper describes a multichannel bidirectional front-end for implantable closed-loop neuromodulation. Stimulation artefacts are reduced by way of a 4-channel H-bridge current source sharing stimulator front-end that minimizes residual charge drops in ...
Delgado Restituto, Manuel +4 more
core +1 more source
Noise Figure Measurement of Differential Amplifiers Using non-Ideal Baluns [PDF]
, 2011 This paper analyzes the noise and gain measurement of microwave differential amplifiers using two passive baluns. A general model of the baluns is considered, including potential losses and phase/amplitude unbalances.
García Muñoz, Luis Enrique +3 more
core +2 more sources
An active balun for high-CMRR IC design [PDF]
2005 European Microwave Conference, 2005 A circuit topology that provides large bandwidth single-ended to differential conversion is presented. The proposed cell is based on a differential pair where feedback on common mode signal provides about 6 dB conversion gain increase, together with attenuation of common mode signal.
CENTURELLI, Francesco +5 more
openaire +4 more sources
High-frequency two-input CMOS OTA for continuous-time filter applications [PDF]
, 2000 “This material is presented to ensure timely dissemination of scholarly and technical work. Copyright and all rights therein are retained by authors or by other copyright holders.
Alinii +15 more
core +1 more source
Closed-cycle gas flow system for cooling of high Tc d.c. SQUID magnetometers [PDF]
, 1994 A high Tc.d.c SQUID based magnetometer for magnetocardiography is currently under development at the University of Twente. Since such a magnetometer should be simple to use, the cooling of the system can be realized most practically by means of a ...
Holland, Herman J. +4 more
core +7 more sources
BMC Geriatrics, 2019 Background The identification of factors associated with functional impairment, in particular those which are potentially modifiable, may help to delay the advanced stages of functional dependence in patients with neurocognitive disorders such as ...
Virginie Dauphinot +8 more
doaj +1 more source
Proposition of a corrected measure of the Lawton instrumental activities of daily living score
BMC Geriatrics, 2021 Background We aimed to propose a correction of the Lawton instrumental activity of daily living (IADL) score to take into account the possibility to have never done some activities, and measured its agreement and reliability with the usual IADL score ...
Marine Dufournet +6 more
doaj +1 more source
The Sunyaev-Zel'dovich Infrared Experiment: A Millimeter-wave Receiver for Cluster Cosmology [PDF]
, 1997 Measurements of the Sunyaev-Zel'dovich (S-Z) effect towards distant clusters of galaxies can be used to determine the Hubble constant and the radial component of cluster peculiar velocities.
A. E. Lange +18 more
core +2 more sources
Current-feedback operational amplifier with high CMRR
Electronics Letters, 2003 A novel current-feedback operational amplifier, the input stage of which is based on the design and use in a repeated pattern of a current-transfer cell, exhibits performance characteristics superior to those obtained with an established input architecture: in particular, the common-mode rejection ratio (CMRR) is 105 dB, and the DC offset voltage less ...
A.A. Tammam +3 more
openaire +1 more source
, 2010 We discuss excess noise contributions of a practical balanced homodyne detector in Gaussian-modulated coherent-state (GMCS) quantum key distribution (QKD). We point out the key generated from the original realistic model of GMCS QKD may not be secure. In
A I Lvovsky +18 more
core +1 more source