Results 31 to 40 of about 124,853 (312)

Overview of the digital-to-analog converter module based on the MCP4725 chip and the digital-to-analog converter module based on the integrating RC circuit

open access: yesИзвестия Томского политехнического университета: Промышленная кибернетика
In technical cybernetic systems, it is impossible to do without exchanging information between devices. Most modern control devices are digital, but it is not uncommon for an analog signal to be required to control executive devices, which can be changed
Kirill A. Volobuev   +2 more
doaj   +1 more source

The digital conception of sigma - delta D/A converter implemented into FPGA

open access: yesCommunications, 2000
D/A converters are technical means which allow mutual communication between discrete and analog systems. Then base function is accurately comprehended in the statement "D/A converters create bridge between digital and analog world".
Oldrich Kovar, Juraj Micek
doaj   +1 more source

Low-Cost Universal Multi-Mode Digital Compensator Design for Flyback Converters With Full Digital Feedback

open access: yesIEEE Access
This study presents a low-cost digital compensator design for a flyback converter featuring a full digital feedback loop. This design replaces the traditional analog compensation circuit with a digital compensator, where the external resistance and ...
Yun Gwan Kim   +8 more
doaj   +1 more source

A Proposal of a Novel Method for Generating Discrete Analog Uniform Noise

open access: yesAdvances in Electrical and Computer Engineering, 2018
This paper presents a proposal of a new way to generate analog noise, discrete in time, with uniform probability density function. Instead of the usual way of generating discrete analog uniform noise using a uniform pseudorandom number generator and a ...
PEJIC, D.   +5 more
doaj   +1 more source

Engineered extracellular vesicles enriched with the miR‐214/199a cluster enhance the efficacy of chemotherapy in ovarian cancer

open access: yesMolecular Oncology, EarlyView.
Loss of the miR‐214/199a cluster is associated with recurrence in ovarian cancer. Engineered small extracellular vesicles (m214‐sEVs) elevate miR‐214‐3p/miR‐199a‐5p in tumor cells, suppress β‐catenin, TLR4, and YKT6 signaling, reprogram tumor‐derived sEV cargo, reduce chemoresistance and migration, and enhance carboplatin efficacy and survival in ...
Weida Wang   +12 more
wiley   +1 more source

Investigation of critical slowing down in a bistable S-SEED

open access: yes, 2003
A simulation of S-SEED switching based upon experimental data is developed that includes the effect of critical slowing down. The simulation's accuracy is demonstrated by close agreement with the results from experimental S-SEED switching. The simulation
Marwood, W.   +5 more
core   +1 more source

Rancang Bangun ECG Simulator Menggunakan Digital to Analog Converter R-2R

open access: yesJurnal Teknologi Informatika & Komputer, 2021
Abstrak Pengujian atau mengkalibrasi alat Electro CardioGraph membutuhkan alat ECG simulator / phantom. Saat melakukan penelitian terdahulu, peneliti sangat tergantung dengan komponen DAC impor.
Mulyatno Saimi
doaj   +1 more source

Photonic analog-to-digital converters

open access: yesOptics Express, 2007
This paper reviews over 30 years of work on photonic analog-to-digital converters. The review is limited to systems in which the input is a radio-frequency (RF) signal in the electronic domain and the output is a digital version of that signal also in the electronic domain, and thus the review excludes photonic systems directed towards digitizing ...
openaire   +2 more sources

Interrogating the immune landscape of microsatellite stable RAS‐mutated colon cancer

open access: yesMolecular Oncology, EarlyView.
COLOSSUS project RAS‐mutated MSS colon cancer study explored transcriptomics and immune cell density by immunohistochemistry (IHC), Immunoscore (IS), ISIC/TuLIS scores, mutation counts, and detected different prevalences but similar microenvironment composition across immune markers with clinical relevance for future immunotherapy combination ...
Rodrigo Dienstmann   +61 more
wiley   +1 more source

Circuit analysis of RC integration circuits for use in PWM-based DACs

open access: yesИзвестия Томского политехнического университета: Промышленная кибернетика
In scientific, educational, and engineering settings, it is often necessary to transmit analog signals to control various actuators. Examples of such devices include motors, valves, dampers, lighting, and audio equipment.
Kirill A. Volobuev   +3 more
doaj   +1 more source

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