Results 31 to 40 of about 198,553 (294)

Silicon photonics-integrated time-domain balanced homodyne detector for quantum tomography and quantum key distribution

New Journal of Physics, 2023
We designed and experimentally demonstrated a silicon photonics-integrated time-domain balanced homodyne detector (TBHD), containing an optical part of dimensions of 1.5 mm × 0.4 mm.
Yanxiang Jia, Xuyang Wang, Xiao Hu, Xin Hua, Yu Zhang, Xubo Guo, Shengxiang Zhang, Xi Xiao, Shaohua Yu, Jun Zou, Yongmin Li   +10 more
doaj   +1 more source

Fully Differential Miller Op-Amp with Enhanced Large- and Small-Signal Figures of Merit

Journal of Low Power Electronics and Applications, 2022
A highly power-efficient, fully differential Miller op-amp with accurately controlled output quiescent current is introduced. The op-amp can drive both capacitive and resistive load due to the presence of the auxiliary amplifier.
Anindita Paul, Jaime Ramirez-Angulo, Héctor Vázquez-Leal, Jesús Huerta-Chua, Alejandro Diaz-Sanchez   +4 more
doaj   +1 more source

Differential Bloch Oscillating Transistor Pair

, 2013
We examine a Bloch Oscillating Transistor pair as a differential stage for cryogenic low-noise measurements. Using two oppositely biased, nearly symmetric Bloch Oscillating Transistors, we measured the sum and difference signals in the current gain and ...
Hakonen, Pertti J., Hassel, Juha, Puska, Antti, Sarkar, Jayanta   +3 more
core   +1 more source

A 0.064 mm² 16-Channel In-Pixel Neural Front End with Improved System Common-Mode Rejection Exploiting a Current-Mode Summing Approach

Journal of Low Power Electronics and Applications
In this work, we introduce the design of a 16-channel in-pixel neural analog front end that employs a current-based summing approach to establish a common-mode feedback loop.
Giovanni Nicolini, Alessandro Fava, Francesco Centurelli, Giuseppe Scotti   +3 more
doaj   +1 more source

A Fully Integrated K-Band Dual Down-Conversion Receiver for Radar Applications in 90 nm CMOS

IEEE Access, 2020
A fully integrated K-band dual down-conversion receiver for phased array radar applications in 90 nm CMOS is presented. The receiver utilizes the dual down-conversion architecture to achieve superior performance.
An'an Li, Yingtao Ding, Zheng Song, Zipeng Chen, Shiyan Sun, Yutian Li, Yinghang Wu, Zhenwu Wang, Zhiming Chen, Min Lin, Baoyong Chi   +10 more
doaj   +1 more source

A light‐triggered Time‐Resolved X‐ray Solution Scattering (TR‐XSS) workflow with application to protein conformational dynamics

FEBS Open Bio, EarlyView.
Time‐resolved X‐ray solution scattering captures how proteins change shape in real time under near‐native conditions. This article presents a practical workflow for light‐triggered TR‐XSS experiments, from data collection to structural refinement. Using a calcium‐transporting membrane protein as an example, the approach can be broadly applied to study ...
Fatemeh Sabzian‐Molaei, Fredrik Orädd, Konstantinos Magkakis, Magnus Andersson   +3 more
wiley   +1 more source

Ultra-Low Power Programmable Bandwidth Capacitively-Coupled Chopper Instrumentation Amplifier Using 0.2 V Supply for Biomedical Applications

Journal of Low Power Electronics and Applications, 2023
This paper presents a capacitively coupled chopper instrumentation amplifier (CCIA) with ultra-low power consumption and programmable bandwidth for biomedical applications.
Xuan Thanh Pham, Xuan Thuc Kieu, Manh Kha Hoang   +2 more
doaj   +1 more source

Derivation and characterization of retinal pigment epithelium from urine‐derived iPSCs

FEBS Open Bio, EarlyView.
Age‐related macular degeneration causes vision loss via RPE dysfunction and loss. Traditional iPSC therapies rely on invasive biopsies, limiting scalability. Here, we utilize urine‐derived stem cells as an accessible source to generate u‐iPSCs, successfully differentiated into pigmented RPE. This “Urine‐to‐Retina” platform provides a promising path for
Daniella Beiner, Hainan Zhu, Carol Christine Bosholm, Heuy‐Ching Wang, Tracy Criswell, Anthony Atala, Jian‐Xing Ma, Yuanyuan Zhang   +7 more
wiley   +1 more source

An integrated source of spectrally filtered correlated photons for large scale quantum photonic systems [PDF]

, 2014
We demonstrate the generation of quantum-correlated photon-pairs combined with the spectral filtering of the pump field by more than 95dB using Bragg reflectors and electrically tunable ring resonators.
Baehr-Jones, Tom, Bajoni, Daniele, Englund, Dirk, Galland, Christophe, Galli, Matteo, Grassani, Davide, Harris, Nicholas C., Hochberg, Michael, Pant, Mihir, Simbula, Angelica   +9 more
core   +4 more sources

Molecular dynamics simulations of positively selected codons in FcγRI reveal novel biochemical binding properties

FEBS Open Bio, EarlyView.
Evolutionary analysis across 32 placental mammals identified positive selection at residues H148 and W149 in the immune receptor FcγR1. Ancestral reconstruction combined with molecular dynamics simulations reveals how these mutations may influence receptor structure and dynamics, providing insight into the evolution of antibody recognition and immune ...
David A. Young, Omar Arias‐Gaguancela, Fiona Gibson, Morgan Grainger, Jodie Score, Amit Nathubhai, Mauricio Cafiero, Lee Richard Machado   +7 more
wiley   +1 more source