Results 41 to 50 of about 8,847,760 (170)

A 0.089mm2 Multiply-Delay Locked Loop with Low Phase Noise and Uniform Phase Separation Based on Time Amplifier (TA) for TDC Applications

J. Circuits Syst. Comput.
A low phase noise Multiply-Delay Locked Loop (MDLL) with uniform distribution multiple output clock phases is proposed in this paper. An auto-configured time amplifier (ACTA) with high gain is embedded in the phase frequency detector to reduce the ...
Wenhao Yang, Yu Lin, Jin Wu, Jun Zhang, Li-Xia Zheng, Wei-Feng Sun   +5 more
semanticscholar   +1 more source

Contribution of Glutamatergic and GABAergic Mechanisms to the Plasticity‐Modulating Effects of Dopamine in the Human Motor Cortex

Human Brain Mapping, Volume 46, Issue 3, February 15, 2025.
Background: Dopamine modulates cortical excitability and plasticity by influencing glutamate and GABA receptor activity. This study investigates the impact of general dopaminergic activation and D1‐ and D2‐like receptor modulation on transcranial direct current stimulation (tDCS)‐induced plasticity in humans.Methods:• Pharmacological intervention: l ...
Elham Ghanavati, Mohammad Ali Salehinejad, Marie C. Beaupain, Lorena Melo, Amba Frese, Min‐Fang Kuo, Michael A. Nitsche   +6 more
wiley   +1 more source

Frontopolar Cortex Interacts With Dorsolateral Prefrontal Cortex to Causally Guide Metacognition

Human Brain Mapping, Volume 46, Issue 2, February 1, 2025.
Combining brain stimulation with neuroimaging, we show that the frontopolar cortex causally implements metacognition in value‐based choice by communicating with brain regions involved in first‐order task performance, providing empirical support for theoretical two‐layer accounts of metacognition.
Georgia E. Kapetaniou, Marius Moisa, Christian C. Ruff, Philippe N. Tobler, Alexander Soutschek   +4 more
wiley   +1 more source

A Review of Performance and Reliability Issues in D Flip‐Flops for Future Artificial Intelligence and Internet of Things Applications

IET Circuits, Devices &Systems, Volume 2025, Issue 1, 2025.
In this paper, various D flip‐flops (FFs) (DFFs) are studied and analyzed based on the performance and reliability effects of different architectures, technology, area, power, delay, and several other key performance parameters of DFFs. Based on these parameters, a few selected DFFs such as C2SFF, conditional‐bridging FF (CBFF)‐S, self‐shut‐off pulsed ...
Syeda Hurmath Juveria, R. Shashank, J. Ajayan, Amit Krishna Dwivedi, D. Nirmal, Shashikant Patil   +5 more
wiley   +1 more source

Matrix: a 15 ps resistive interpolation TDC ASIC based on a novel regular structure [PDF]

, 2018
This paper presents a 4-channel TDC ASIC with the following features: 15-ps LSB (9.34 ps after calibration), 10-ps jitter, < 4-ps time resolution, up to 10 MHz of sustained input rate per channel, 45 mW of power consumption and very low area (910×215 μm2)
Fernández, G., Sanuy Charles, Andreu, Mauricio, J., Gascón Fora, David, Ciaglia, D., Gómez, S   +5 more
core   +1 more source

Time‐Based Wireless Synchronous Detection of Bioimpedance Signals

Electronics Letters, Volume 61, Issue 1, January/December 2025.
Impedance is conventionally measured in the analogue or digital domain, incurring in high power and area consumption resulting from either the use of analogue multipliers and high‐order filters, or high‐speed ADCs. Time domain solution offer a unique advantage both in terms of power consumption and technology scalability.
Virgilio Valente, Hanieh Ashrafirad
wiley   +1 more source

A 0.8–3.2 GHz Fast‐Lock Duty‐Cycle Corrector for NAND Flash Interfaces With 50% Lower SAR‐Induced Duty‐Quantisation Error

Electronics Letters, Volume 61, Issue 1, January/December 2025.
This letter presents a wide‐range, fast‐lock DCC for NAND Flash interfaces using an inverter‐based equalised BBDCD and 5‐bit SAR control. A half‐LSB post‐bias halves the quantisation‐error bound while maintaining ≤1% duty error and 1.73 mW power at 3.2 GHz in 28‐nm CMOS.
Dong‐Ho Shin, Kang Yoon Lee
wiley   +1 more source

Design of dynamic range adjustable laser ranging chip based on element sharing

IET Optoelectronics, Volume 19, Issue 1, January/December 2025.
This work proposes a design of a dynamic range adjustable laser ranging chip based on element sharing, which combines single photon avalanche diodes (SPAD) and direct time‐of‐flight (dToF) to address the uncertainty of detection distance in different usage scenarios of laser ranging technology.
Xuanke Tong, Chongzhuo Zhao, Zhiwei Huang, Chuanxin Teng, Shijie Deng   +4 more
wiley   +1 more source

Delay management for heterogeneous traffic in vehicular sensor networks using packet fragmentation of low priority data

IET Communications, Volume 18, Issue 20, Page 1753-1764, December 2024.
The paper presents performance analysis of MAC protocol for vehicular sensor networks. The protocol FROG‐MAC takes a unique approach of fragmenting the lower priority data, so data of higher priority should be transmitted first, ensuring safety of people and infrastructure.
Anwar Ahmed Khan, Shama Siddiqui, Muhammad Shoaib Siddiqui   +2 more
wiley   +1 more source

The mechanism and effect factors of the combustion cycle‐to‐cycle variations in the spark ignition engine

Energy Science &Engineering, Volume 12, Issue 10, Page 4773-4787, October 2024.
The authors comprehensively reviewed the fundamental reasons and mechanism of cycle‐to‐cycle variations (CCVs) of a spark ignition (SI) engine. In addition, the characteristic parameters and characterization methods of the CCV, the laws and influencing factors of the CCV, and the numerical simulation methods of the CCV were introduced in detail to ...
Xiongbo Duan, Lining Feng, Yan Xia
wiley   +1 more source