Results 21 to 30 of about 18,264 (256)

A segmented neutron detector based on Silicon-PIN photodiodes using neutron-proton converters [PDF]

open access: yesNuclear Technology and Radiation Protection, 2019
A segmented neutron detection system based on windowless silicon-PIN photodiodes has been designed and tested with various hydrogen rich converter materials.
Bayrak Ahmet   +3 more
doaj   +1 more source

Implementation of Reading Electronics of Silicone Photomultipliers on the Array Chip МН2ХА030

open access: yesVìsnik Nacìonalʹnogo Tehnìčnogo Unìversitetu Ukraïni Kììvsʹkij Polìtehnìčnij Ìnstitut: Serìâ Radìotehnìka, Radìoaparatobuduvannâ, 2019
The implementation of a charge-sensitive amplifier (CSA) based on the МН2ХА030 array chip (AC) with an adjustable conversion factor for processing signals of silicone photomultipliers (SPM) is considered.
O. V. Dvornikov   +5 more
doaj   +1 more source

Analog CMOS Readout Channel for Time and Amplitude Measurements With Radiation Sensitivity Analysis for Gain-Boosting Amplifiers

open access: yesIEEE Access, 2021
The front-end readout channel consists of a charge sensitive amplifier (CSA) and two different unipolar-shaping circuits to generate pulses suitable for time and energy measurement.
T. Sanchez-Rodriguez   +5 more
doaj   +1 more source

Design of a Set of Analog Microcircuits for Processing Signals from High-Resistance Sensors

open access: yesПриборы и методы измерений
In various areas of instrument engineering, it is necessary to register currents less than 10-12А or process signals from sensors whose internal resistance exceeds hundreds of megaohms.
O. V. Dvornikov, V. A. Tchekhovski
doaj   +1 more source

Reducing charge-sensitive-amplifier sensitivity to detector capacitance variations

open access: yesNuclear Instruments and Methods, 1967
Abstract A method for reducing the sensitivity of charge-sensitive preamplifiers to detector capacitance variations is described. This method is directly applicable to many existing charge-sensitive preamplifiers with only minor modifications.
openaire   +2 more sources

Three phosphatase families form a community: The phosphohydrolases that act upon inositol pyrophosphates

open access: yesFEBS Letters, EarlyView.
Inositol pyrophosphates are energy‐rich signaling molecules that perform critical functions in cells. Three different families of phosphatases hydrolyze the β phosphate of the inositol pyrophosphate molecules: two have narrow specificities and one is promiscuous.
Ronda J. Rolfes
wiley   +1 more source

Transient surface photovoltage spectroscopy of diamond

open access: yesAIP Advances, 2022
Contactless and highly sensitive probing of electronic transitions in diamond over a wide spectral range from near infrared to deep ultraviolet is still challenging.
Th. Dittrich
doaj   +1 more source

An epithelial GPR35 isoform supports tumor‐associated transcriptional and metabolic phenotypes

open access: yesFEBS Letters, EarlyView.
GPR35 generates two functionally distinct isoforms with previously unresolved roles. GPR35‐short mediates immune‐cell chemotaxis, while GPR35‐long is enriched in colorectal cancer epithelium, where it supports increased metabolism, proliferation, and tumor‐associated transcriptional programs.
Jørgen D. Rønneberg   +14 more
wiley   +1 more source

Comprehensive Noise Modeling of Piezoelectric Charge Accelerometer with Signal Conditioning Circuit

open access: yesMicromachines
This paper reports on noise modeling of a piezoelectric charge accelerometer with a signal conditioning circuit. The charge output is converted into voltage and amplified using a JFET operational amplifier that has high input resistance and low noise ...
Ghulam Ali, Faisal Mohd-Yasin
doaj   +1 more source

PAK1 activation drives divergent resistance mechanisms to aromatase inhibition and tamoxifen in a luminal: A breast cancer model

open access: yesMolecular Oncology, EarlyView.
Breast cancer remains a major cause of cancer death in women, frequently developing endocrine therapy resistance. This study demonstrates that upregulated p21‐activated kinase 1 (PAK1) activity drives resistance to tamoxifen and long‐term estrogen deprivation in ER+ breast cancer models.
Luisa Schwarzmüller   +10 more
wiley   +1 more source

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