Results 41 to 50 of about 772 (186)

Polydopamine Nanoparticle‐Mediated Precise Near‐Infrared Optical Stimulation for Cognitive Enhancement

Advanced Science, EarlyView.
Polydopamine nanoparticles enable a precise, non‐genetic, and transcranial neuromodulation strategy via near‐infrared photothermal stimulation. By activating TRPV1 channels, this approach specifically enhances hippocampal gamma oscillations, thereby rescuing spatial memory deficits in models of perioperative neurocognitive disorder.
Yan‐Bo Zhou, Qiong Xue, Su‐Xuan Hou, Ke‐Yao Zhang, Wei‐Tong Pan, Ting‐Ting Zeng, Yu‐Ge Wang, Daqing Ma, Chenguang Zhao, Pan‐Miao Liu, Jian‐Jun Yang   +10 more
wiley   +1 more source

An Adaptive-Resolution SAR ADC With Metastability-Sensing 1-bit TDC in 65-nm CMOS

IEEE Open Journal of Circuits and Systems
We propose a metastability-sensing one-bit time-to-digital converter (TDC) for a successive-approximation (SAR) analog-to-digital converter (ADC) that detects a metastability-specific current in the comparator, gates its clock to stop the conversion ...
Jorgen M. Sandvik, Trond Ytterdal
doaj   +1 more source

Implementation and development of a DAQ system DELILA at ELI-NP [PDF]

EPJ Web of Conferences
This paper reports the current status of the Data AcQuisition (DAQ) system in ELI-NP, Romania. The DAQ system uses several data-taking electronics modules, CAEN 1730 1725 and 1740 digitizer series, and Mesytec Analog-to-Digital Converter (ADC) and Time ...
Aogaki Sohichiroh, Niculae Stefan
doaj   +1 more source

Magnetoelectric Nanoparticles Enable Modulation of Cortical Networks by Low‐Intensity Static Magnetic Fields In Vitro

Advanced Science, EarlyView.
Neuromodulation strategies are increasingly needed to stimulate, restore, or replace altered neuronal activity in disease. Cobalt ferrite‐barium titanate (CFO–BTO) magnetoelectric nanoparticles convert low‐intensity static magnetic fields into local electrical modulation of cortical networks.
Nathalia Cancino‐Fuentes, Alejandro Suarez‐Perez, Elric Zhang, Hao Ye, Marta Bonato, Joana Covelo, Vitaly Pustovalov, Anton Guimera‐Brunet, Xavi Illa, Valentin Gantenbein, Cagatay M. Oral, Marta Parazzini, Salvador Pané, Maria V. Sanchez‐Vives   +13 more
wiley   +1 more source

A Co‐Designed Implicit‐Reset Path PFD and Current Mismatch Compensated CP Enabling Sub‐0.5% Mismatch and Dead Zone‐Free for Low‐Spur PLLs

International Journal of Circuit Theory and Applications, EarlyView.
A co‐designed implicit‐reset phase‐frequency detector (PFD) and nonlinear amplifier‐assisted charge pump (CP) achieve dead zone‐free operation from 10 MHz to 4.7 GHz with < 0.5% current mismatch without calibration, enabling −80 dBc of reference spur and 0.50 ps of RMS jitter in a 180 nm of CMOS PLL.
A. Ghaemnia, Jincheng Yang, Xiaojiong Fei, G. Zhang   +3 more
wiley   +1 more source

A Successive Approximation Time-to-Digital Converter with Single Set of Delay Lines for Time Interval Measurements

Sensors, 2019
The paper is focused on design of time-to-digital converters based on successive approximation (SA-TDCs—Successive Approximation TDCs) using binary-scaled delay lines in the feedforward architecture. The aim of the paper is to provide a tutorial on
Jakub Szyduczyński, Dariusz Kościelnik, Marek Miśkowicz   +2 more
doaj   +1 more source

Subthreshold Time‐Mode All‐Digital DLL With Built‐In Linearization

International Journal of Circuit Theory and Applications, EarlyView.
This paper presents a subthreshold time‐mode all‐digital delay‐locked loop (DLL) for low‐frequency clock generation. The large and tunable delay of the DLL is obtained using a static inverter delay line whose supply voltage is in the vicinity of 100 mV and adjustable by varying supply voltage. Phase error is processed by a time‐mode proportional block (
Fei Yuan, Wenhao Wu, Yushi Zhou
wiley   +1 more source

Time-to-Digital Converter Approach to Physical Attacks on Integrated Circuits

Electrica
Shielding is an effective way of protecting the circuitry against physical attacks. Shields are metal structures that cover the top of a circuit. Measuring the delay on these shields allows detection of physical attacks.
Hasan Kaydırma, Ali Tangel, Ahmet Unutulmaz   +2 more
doaj   +1 more source

Achievement of Transition Metal Chalcogenides/Oxides in Hydrogen Production by Seawater Electrolysis

EcoEnergy, EarlyView.
Transition metal chalcogenides (TMCs)/oxides have shown great application potential in seawater splitting for hydrogen generation due to their adjustable electronic properties, abundant active sites, and excellent catalytic performance. ABSTRACT Under the impetus of global “dual carbon” goals, green hydrogen has become a key component of the future ...
Xiaohui Du, Xinyu Li, Jianna Li, Tao Sun
wiley   +1 more source

Statistical Modelling of SPADs for Time-of-Flight LiDAR

Sensors, 2021
Time-of-Flight (TOF) based Light Detection and Ranging (LiDAR) is a widespread technique for distance measurements in both single-spot depth ranging and 3D mapping.
Alfonso Incoronato, Mauro Locatelli, Franco Zappa   +2 more
doaj   +1 more source