Results 61 to 70 of about 1,191 (163)

A 96-channel FPGA-based Time-to-Digital Converter (TDC) and fast trigger processor module with multi-hit capability and pipeline [PDF]

open access: yesNuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 2005
Abstract We describe an field-programmable gate arrays based (FPGA), 96-channel, Time-to-Digital converter (TDC) and trigger logic board intended for use with the Central Outer Tracker (COT) [T. Affolder et al., Nucl. Instr. and Meth. A 526 (2004) 249] in the CDF Experiment [The CDF-II detector is described in the CDF Technical Design Report (TDR ...
Mircea Bogdan   +10 more
openaire   +1 more source

Arrayable TDC with Voltage-Controlled Ring Oscillator for dToF Image Sensors

open access: yesSensors
As the resolution and conversion speed of time-to-digital conversion (TDC) chips continue to improve, the bit error rate also increases, leading to a decrease in the linearity of TDC and seriously affecting measurement accuracy.
Liying Chen   +2 more
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

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

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

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

Integrated High-Resolution Multi-Channel Time-to-Digital Converters (TDCs) for PET Imaging

open access: yes, 2011
PET with time-of-flight (TOF) capability has been shown to provide a better reconstructed image compared to conventional positron tomography. The increase in SNR mainly depends on the size of the patient being imaged Conti (2009), the intrinsic resolution of the detector and the resolution of the TOF.
Wu Gao   +3 more
openaire   +2 more sources

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