Results 81 to 90 of about 56,904 (291)

The metrological aspects of converters based on operational amplifiers used to measure the electrical parameters of oxide coatings

open access: yesИзвестия высших учебных заведений. Поволжский регион:Технические науки, 2023
Background. The study is devoted to the issue of improving the accuracy of automated measuring instruments for the electrical parameters of oxide coatings.
Ekaterina A. Pecherskaya   +5 more
doaj   +1 more source

Rotating raster generator [PDF]

open access: yes, 1974
A rotating raster generator is provided which enables display of a television raster at any arbitrary roll angle. The generator includes four integrator circuits each of which receives a first voltage input corresponding to the sine or cosine of the ...
Wagner, C. A.
core   +1 more source

β‐TrCP overexpression enhances cisplatin sensitivity by depleting BRCA1

open access: yesMolecular Oncology, EarlyView.
Low levels of β‐TrCP (Panel A) allow the accumulation of BRCA1 and CtIP, which facilitate the repair of cisplatin‐induced DNA damage via homologous recombination (HR) and promote tumor cell survival. In contrast, high β‐TrCP expression (Panel B) leads to BRCA1 and CtIP degradation, impairing HR repair, resulting in persistent DNA damage and apoptosis ...
Rocío Jiménez‐Guerrero   +8 more
wiley   +1 more source

Analysis of Zero-locked Circuit of Operational Amplifier and Its Improvement

open access: yesGong-kuang zidonghua, 2011
Working principles of existing zero-locked circuits for operational amplifiers composed of NPN BJT or N channel JFET were introduced separately and corresponding improvement methods were proposed for shortcomings of zero-locked circuit with N channel ...
YUAN Zeng-min, QING Bin
doaj  

New Temperature-Insensitive Electronically-Tunable Grounded Capacitor Simulator

open access: yesActive and Passive Electronic Components, 1996
A new circuit for simulating a grounded capacitor is presented. The circuit uses one operationalamplifier (OA), three operational-transconductance amplifiers (OTAs), and one capacitor.
Muhammad Taher Abuelma'atti   +1 more
doaj   +1 more source

Integrable power gyrator [PDF]

open access: yes, 1973
Further study of Y-matrix and Z-matrix configuration has led to development of efficient, dependable high-quality gyrators. Efficiency of new gyrators may approach theoretical limit of 78.5% with further improvements.
Hochmair, E. S.
core   +1 more source

Characterizing the salivary RNA landscape to identify potential diagnostic, prognostic, and follow‐up biomarkers for breast cancer

open access: yesMolecular Oncology, EarlyView.
This study explores salivary RNA for breast cancer (BC) diagnosis, prognosis, and follow‐up. High‐throughput RNA sequencing identified distinct salivary RNA signatures, including novel transcripts, that differentiate BC from healthy controls, characterize histological and molecular subtypes, and indicate lymph node involvement.
Nicholas Rajan   +9 more
wiley   +1 more source

Generation of equivalent forms of operational trans-conductance amplifier-RC sinusoidal oscillators: the nullor approach

open access: yesThe Journal of Engineering, 2014
It has been shown in two earlier papers published from this study that corresponding to a given single-operational trans-conductance amplifier (single-OTA)-RC and dual-OTA-RC sinusoidal oscillators, there are three other structurally distinct equivalent ...
Raj Senani   +3 more
doaj   +1 more source

Rim inertial measuring system [PDF]

open access: yes, 1981
The invention includes an angular momentum control device (AMCD) having a rim and several magnetic bearing stations. The AMCD is in a strapped down position on a spacecraft.
Anderson, W. W.   +2 more
core   +1 more source

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