Results 41 to 50 of about 11,324 (226)

Low Noise Low Power CMOS Telescopic-OTA for Bio-Medical Applications

Computers, 2016
The preamplifier block is crucial in bio-medical signal processing. The power intensive Operational Transconductance Amplifier (OTA) is considered, and the performance of preamplifier is studied.
Bellamkonda Saidulu, Arun Manoharan, Kumaravel Sundaram   +2 more
doaj   +1 more source

Pyroelectric USB-joulemeters of pulsed laser radiation

Semiconductor Physics, Quantum Electronics & Optoelectronics, 2020
The general arrangement, principle of operation and basic parameters of pyroelectric USB-meters of energy of pulsed laser radiation have been described. A smart head of the meter converts the signal from the pyroelectric sensor and immediately transfers ...
V.B. Samoylov, L.V. Levash, O.A. Rosnovskiy, M.Yu. Vedula, V.S. Rad'ko   +4 more
doaj   +1 more source

Compact Tabletop Magnetic Resonance Elastography for Mapping Soft Tissue Viscoelasticity

Advanced Science, EarlyView.
This work introduces a compact, low‐cost tabletop magnetic resonance elastography platform for high‐resolution viscoelastic mapping in soft‐tissue specimens. Using this method in human colorectal liver metastases, we demonstrate fully automated biomechanical profiling of treatment response and show that heterogeneity‐based metrics outperform ...
Weijie Zhao, Lisa‐Marie Skrip, Heiko Tzschätzsch, Tom Meyer, Hossein S. Aghamiry, Alexander Arnold, Lene Änne Böhne, Jakob Jordan, Oliver Boehm, Agnes K. Boehm, Steffen Görner, Jakob Schattenfroh, Yanglei Wu, Pedro Augusto Dantas de Moraes, Johann Pratschke, Jürgen Braun, Igor M. Sauer, Jing Guo, Ingolf Sack, Karl H. Hillebrandt   +19 more
wiley   +1 more source

Analytical Study of Front-End Circuits Coupled to Silicon Photomultipliers for Timing Performance Estimation under the Influence of Parasitic Components

Sensors, 2020
Full exploitation of the intrinsic fast timing capabilities of analog silicon photomultipliers (SiPMs) requires suitable front-end electronics. Even a parasitic inductance of a few nH, associated to the interconnections between the SiPM and the ...
Pietro Antonio Paolo Calò, Savino Petrignani, Michele Di Gioia, Cristoforo Marzocca   +3 more
doaj   +1 more source

An Energy Autonomous Microneedle Array‐Based Sensing System for Continuous Biomarker Monitoring

Advanced Science, EarlyView.
This work presents an innovative self‐powered wearable biosensor system for real‐time monitoring of multiple biomarkers in interstitial fluid. The device integrates stainless steel‐based minimally invasive microneedles with ion‐selective membranes, enabling simultaneous Na+, K+, Ca2+, pH, and glucose detection.
Arnab Pal, Kai‐Po Fan, Sheng‐Chun Hung, Jaba Roy Chowdhury, Jun‐Hsun Chung, Meenakshi Ray, Hsiang‐Yun Hsu, Fu‐Cheng Kao, Kuei‐Lin Liu, Zong‐Hong Lin   +9 more
wiley   +1 more source

Particle Mass Spectrometer (PMS) and its Application to Nano-Particle Sizing in Various Systems

KONA Powder and Particle Journal, 2014
Particle mass spectrometry has been shown to be an effective diagnostic technique to determine particle size and size distribution of charged nano-particles originating from different reactive sources. In the present
Christian Janzen, Marc G.D. Strecker, Paul Roth   +2 more
doaj   +1 more source

Synergistic Interface Engineering via Buffer Layer and UVO Treatment for High‐Performance PbS Quantum Dot Near‐Infrared Photodiodes

Advanced Science, EarlyView.
A dual‐interface strategy combining a solvent‐orthogonal Poly‐TPD buffer with UV–ozone tuning of PbS‐EDT reconstructs interfacial energetics and defect chemistry in PbS CQD photodiodes. The optimized interface suppresses shunt‐ and trap‐related leakage, reduces noise, and enables high‐detectivity near‐infrared detection with imaging capability ...
Chuan Wei, Jun Han, Ning Feng, Li Yan, Hao Sun, Yuanhong Gao, Meili Xu, Guodan Wei, Hong Meng   +8 more
wiley   +1 more source

A New Preamplifier for Particle Detectors [PDF]

, 1984
A new preamplifier for particle detectors has been designed and built for the Fermilab VTPC by Fujitsu of Japan. The device, designated MB43458, is a semi-custom monolithic assembled in a small, low mass package. The purpose of this report is to document the preliminary tests which have been done thus far.
openaire   +2 more sources

Intrinsic Dual‐Phase Regulated GeSe2 Nanoparticles Triggered by Ball‐Milling Treatment for Photonic Multi‐Valued Logic Circuits

Advanced Science, EarlyView.
We report the solid‐state ball milling, a traditional, reliable, mass‐productive material processing, to prepare the air‐stable and dual‐phase GeSe2‐x nanoparticles with extended photodetection feasibility toward optical‐wavelength regions. We further display photonic multi‐valued logic (MVL) circuit through the employment of a hybrid PMMA/GeSe2‐x ...
An‐Ting Tsai, Chun‐Jen Wang, Pin‐Chao Liao, Chin Shan Lue, Chia‐Nung Kuo, Le Vo Phuong Thuan, Po‐Hsuan Hsiao, Chang‐Hyun Kim, Chia‐Yun Chen   +8 more
wiley   +1 more source

Recent Results on the Optoelectronic Feedback Preamplifier [PDF]

IEEE Transactions on Nuclear Science, 1970
A brief description of the optoelectronic feedback system is followed by an account of some interesting aspects of low-noise preamplifiers and detectors revealed by this work. These include the following items: 1. The observation of hole collection at the gate of a FET analogous to ion collection at the grid of a vacuum tube. 2.
Goulding, F.S., Walton, J.T., Pehl, R.H.
openaire   +2 more sources