Results 81 to 90 of about 1,742 (210)

Semidigital PLL Design for Low-Cost Low-Power Clock Generation

open access: yesJournal of Electrical and Computer Engineering, 2011
This paper describes recent semidigital architectures of the phase-locked loop (PLL) systems for low-cost low-power clock generation. With the absence of the time-to-digital converter (TDC), the semi-digital PLL (SDPLL) enables low-power linear phase ...
Ni Xu, Woogeun Rhee, Zhihua Wang
doaj   +1 more source

Increasing a resolution of time to digital converter / Laikinio skaitmeninio keitiklio skiriamosios gebos didinimas

open access: yesMokslas: Lietuvos Ateitis, 2017
Time to digital converter (TDC) is one of the main blocks of all-digital frequency synthesizer (FS), where it is used as phase detector. The output of TDC is digital, therefore it introduces quantization noise to the output of FS.
Marijan Jurgo, Romualdas Navickas
doaj   +1 more source

Climate Change Vulnerability and Conservation Priorities for Atlantic Forest Palms

open access: yesEcology and Evolution, Volume 16, Issue 4, April 2026.
Climate change may reduce palm richness in the northern and central Atlantic Forest. Some palms may lose their entire range areas, while others may expand in the future. Range‐restricted palms tend to be more vulnerable to climate change. ABSTRACT Climate change is expected to significantly impact biodiversity, causing shifts in palm species ...
Júlia Angeli   +4 more
wiley   +1 more source

Sustainable Optimization of Emissions and Performance in Hydrogen Port Injection Diesel Engines Through Port Timing and Injection Duration Modulation

open access: yesEnergy Science &Engineering, Volume 14, Issue 4, Page 1725-1748, April 2026.
Optimizing hydrogen port injection in diesel engines significantly improves efficiency and reduces emissions, demonstrating a sustainable dual‐fuel strategy for cleaner transportation solutions and lower environmental impact. ABSTRACT This study evaluates a single‐cylinder hydrogen port injection (HPFI) Diesel engine by systematically varying the ...
Kaustubh R. Kapadani   +7 more
wiley   +1 more source

Unraveling Chronic Pain: From Mechanisms and Risks to Diagnosis and Treatment

open access: yesMedComm, Volume 7, Issue 4, April 2026.
Chronic pain arises through distinct molecular pathways categorized into nociceptive, neuropathic, and nociplastic types. Nociceptive pain begins with TRP channel activation in peripheral nociceptors, signaling via Aδ‐ and C‐fibers through the spinal dorsal horn and spinothalamic tracts to the brain, regulated by descending inhibition and involving ...
Xiaofeng Dai   +3 more
wiley   +1 more source

High performance time-to-amplitude converter array

open access: yes, 2013
The analysis of extremely weak and fast light signals exploiting the measurement technique of Time-Correlated Single Photon Counting (TCSPC) is increasingly widespread in a large number of fields: from medicine and biology (fluorescence spectroscopy), to
CROTTI, MATTEO CARLO   +9 more
core   +1 more source

Emerging Neural Recording and Neurostimulation Technologies Based on Brain–Computer Interface: A Promising Approach for Neuropsychiatric Disorders

open access: yesMedComm, Volume 7, Issue 4, April 2026.
This review explores brain–computer interface (BCI)–based neural recording and stimulation for treating neuropsychiatric disorders. It details three emerging technologies: endovascular BCI for minimally invasive signal acquisition, BCI‐integrated epidural spinal cord stimulation for motor restoration, and closed‐loop deep brain stimulation for adaptive
Yeguang Xu   +10 more
wiley   +1 more source

Asynchronous time-to-digital converter [PDF]

open access: yes, 2017
U sklopu diplomskog rada projektiran je jedan vremensko-digitalni pretvornik te je implementiran na FPGA pločici i prikazani su rezultati mjerenja. Sklop je prošao kroz više promjena dok nisu dobiveni zadovoljavajući rezultati.
Pešerović, Boris
core  

A Programmable Time Measurement Architecture for Embedded Memory Characterization

open access: yes, 2005
This paper describes a programmable time measurement architecture that facilitates memory characterization. We have created a novel standalone time measurement architecture that can measure rise time, fall time, pulse width and propagation delay time ...
Ross, Neil   +2 more
core  

Phase–frequency detecting time-to-digital converter

open access: yes
A simple time-to-digital converter (TDC), capable of detecting not only phase difference but also frequency difference, is presented. The proposed TDC guarantees pull-in even for PLLs with the lowest loop gain.
Oh, D.-H., Choo, K.-J., Jeong, D.-K.
core   +1 more source

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