Results 71 to 80 of about 14,448,705 (337)

Design of Cryogenic SiGe Low-Noise Amplifiers [PDF]

, 2007
This paper describes a method for designing cryogenic silicon-germanium (SiGe) transistor low-noise amplifiers and reports record microwave noise temperature, i.e., 2 K, measured at the module connector interface with a 50-Ω generator.
Bardin, Joseph C., Mani, Hamdi, Weinreb, Sander   +2 more
core  

Large-Area, Low-Noise, High Speed, Photodiode-Based Fluorescence Detectors with Fast Overdrive Recovery

, 2005
Two large-area, low noise, high speed fluorescence detectors have been built. One detector consists of a photodiode with an area of 28 mm x 28 mm and a low noise transimpedance amplifier.
D. DeMille, Graeme J., Horowitz P., S. Bickman, Yariv A.   +4 more
core   +3 more sources

Network divergence analysis identifies adaptive gene modules and two orthogonal vulnerability axes in pancreatic cancer

Molecular Oncology, EarlyView.
Tumors contain diverse cellular states whose behavior is shaped by context‐dependent gene coordination. By comparing gene–gene relationships across biological contexts, we identify adaptive transcriptional modules that reorganize into distinct vulnerability axes.
Brian Nelson, Lyanne Delgado‐Coka, Natalia Marchenko, Luisa F. Escobar‐Hoyos, Kenneth R. Shroyer, Alisa Yurovsky, Trey Ideker, Gábor Balázsi, Thomas MacCarthy, Scott Powers   +9 more
wiley   +1 more source

Design of Low-power Consumption Front-end CMOS Chip Circuit for Boron Nitride Personal Dosimeter

Yuanzineng kexue jishu
In the context of radiation monitoring for occupational safety, personal dosimeters require highly sensitive and energy-efficient electronic interfaces.
LIU Zhan, LIU Haifeng, HE Gaokui, HUANG Xinyi, SUN Jiayu
doaj   +1 more source

Differential ultra low noise amplifier for low frequency noise measurements

AIP Advances, 2011
Almost all low noise voltage preamplifier suitable for application in the field of Low Frequency Noise Measurements (either commercially available or proposed in the literature) are single ended input amplifiers.
Graziella Scandurra, Gianluca Cannatà, Carmine Ciofi   +2 more
doaj   +1 more source

Low-noise top-gate graphene transistors

, 2009
We report results of experimental investigation of the low-frequency noise in the top-gate graphene transistors. The back-gate graphene devices were modified via addition of the top gate separated by 20 nm of HfO2 from the single-layer graphene channels.
A. A. Balandin, Balandin A. A., G. Liu, M. Shur, Q. Shao, S. Rumyantsev, W. Stillman   +6 more
core   +1 more source

Somatic mutational landscape in von Hippel–Lindau familial hemangioblastoma

Molecular Oncology, EarlyView.
The causes of central nervous system (CNS) hemangioblastoma in Von Hippel–Lindau (vHL) disease are unclear. We used Whole Exome Sequencing (WES) on familial hemangioblastoma to investigate events that underlie tumor development. Our findings suggest that VHL loss creates a permissive environment for tumor formation, while additional alterations ...
Maja Dembic, Anne Nørremølle, Lilian Bomme Ousager, Lars van Brakel Andersen, Marie Louise Mølgaard Binderup, Mads Thomassen   +5 more
wiley   +1 more source

A low-noise ferrite magnetic shield

, 2007
Ferrite materials provide magnetic shielding performance similar to commonly used high permeability metals but have lower intrinsic magnetic noise generated by thermal Johnson currents due to their high electrical resistivity.
Kornack, T. W., Lee, S. -K., Romalis, M. V., Smullin, S. J.   +3 more
core   +1 more source

Deciphering transcriptional plasticity in pancreatic ductal adenocarcinoma reveals alterations in sensory neuron innervation

Molecular Oncology, EarlyView.
Pancreatic sensory neurons innervating healthy and PDAC tissue were retrogradely labeled and profiled by single‐cell RNA sequencing. Tumor‐associated innervation showed a dominant neurofilament‐positive subtype, altered mitochondrial gene signatures, and reduced non‐peptidergic neurons.
Elena Genova, Michele Montrone, Uday Rangaswamy, Francesco Diversi, Irene Schiavo, Denise Ferrarini, Roberta Di Florio, Irene Longo, Michele Coscia, Nicola Zamboni, Giorgia Demontis, Lisa Veghini, Vincenzo Corbo, Remo Sanges, Paul Heppenstall   +14 more
wiley   +1 more source

Gm-boosted Flat Gain UWB Low Noise Amplifier with Noise Cancellation

Chemical Engineering Transactions, 2015
This paper presents a high power gain (S21) and low Noise Figure (NF) 3.1-10.6 GHz common gate (CG) CMOS ultra wideband (UWB) low noise amplifier (LNA) using active gm-boosted technology, T-match input network, self-body-bias, current reused and noise ...
X.R. Zhao, H.H. Fan, Z.J. Fu, F.Y. Ye, J.F. Chen   +4 more
doaj   +1 more source