Results 41 to 50 of about 6,177,903 (303)

Efficiency Calibration of a HPGe Detector and Environmental Samples Measurement of Self-Absorption Correction Factors [PDF]

open access: yesمجله علوم و فنون هسته‌ای, 2014
Gamma spectroscopy was performed on Marinelli beaker standards containing soil with different densities of ρ = 1 to 1.5 gr cm-3 upon using a HPGe detector. The spectra were analyzed by a specific software and then the efficiency vs. energy was calculated
Mahboubeh Lotfi   +2 more
doaj  

Efficient Pose Selection for Interactive Camera Calibration [PDF]

open access: yes2018 IEEE International Symposium on Mixed and Augmented Reality (ISMAR), 2018
The choice of poses for camera calibration with planar patterns is only rarely considered - yet the calibration precision heavily depends on it. This work presents a pose selection method that finds a compact and robust set of calibration poses and is suitable for interactive calibration.
Pavel Rojtberg, Arjan Kuijper
openaire   +2 more sources

On Calibration of Modern Quantized Efficient Neural Networks

open access: yesCoRR, 2023
We explore calibration properties at various precisions for three architectures: ShuffleNetv2, GhostNet-VGG, and MobileOne; and two datasets: CIFAR-100 and PathMNIST. The quality of calibration is observed to track the quantization quality; it is well-documented that performance worsens with lower precision, and we observe a similar correlation with ...
Joey Kuang, Alexander Wong
openaire   +2 more sources

A Simplified Method for HPGe Detector Efficiency Calibration Using Certified Reference Materials Containing Natural Radionuclides

open access: yesApplied Sciences
Multinuclide calibration sources, consisting of mixtures of gamma-emitting radionuclides, are commonly used for detector efficiency calibration in gamma-ray spectrometry.
Paweł Jodłowski
doaj   +1 more source

On optimization of calibrations of a distributed hydrological model with spatially distributed information on snow [PDF]

open access: yesHydrology and Earth System Sciences
In northern cold-temperate countries, a large portion of annual streamflow is produced by spring snowmelt, which often triggers floods. It is important to have spatial information about snow variables such as snow water equivalent (SWE), which can be ...
D. Tiwari, M. Trudel, R. Leconte
doaj   +1 more source

A Bayesian Neural Network-Based Method to Calibrate Microscopic Traffic Simulators

open access: yesJournal of Advanced Transportation, 2021
Calibrating the microsimulation model is essential to enhance its ability to capture reality. The paper proposes a Bayesian neural network (BNN)-based method to calibrate parameters of microscopic traffic simulators, which reduces repeated running of ...
Qinqin Chen   +5 more
doaj   +1 more source

An unexpected alternative viologen electron mediator site in tungsten‐containing formate dehydrogenase

open access: yesFEBS Letters, EarlyView.
An unexpected alternative interaction site for ethyl viologen was identified in formate dehydrogenase 1 from Methylorubrum extorquens. Combined mutagenesis, kinetic analysis, and docking revealed that aromatic residues near an iron–sulfur cluster enable flavin mononucleotide‐independent electron transfer, offering a framework for engineering improved ...
Eleni G. Poloniataki, Yong Hwan Kim
wiley   +1 more source

Preliminary Study on Preparation Method of Gas Simulation Source Based on Silicon Aerogel

open access: yesJournal of Isotopes
In order to prepare a simulation source that can replace 13N(T1/2=9.97 min) gas for direct calibration of 13N monitor,this paper adopts two-step wet gel preparation technology and CO2 supercritical drying technology to carry out research on the ...
Juhan LAI   +7 more
doaj   +1 more source

Quantum calibrations traceable through classical radiometry

open access: yesMeasurement: Sensors, 2021
A system for calibrating single photon detector efficiency that is traceable to the SI through a state-of-the-art classical optical fibre radiometer has been developed and is in the process of being vetted as a calibration service at the National ...
Michelle Stephens   +4 more
doaj   +1 more source

Calibration of optical particle size spectrometers against a primary standard: Counting efficiency profile of the TSI Model 3330 OPS and Grimm 11-D monitor in the particle size range from 300 nm to 10 μm

open access: yes, 2021
In this study, we present a traceable method for determining the counting efficiency of optical particle size spectrometers (OPSS), also known as aerosol spectrometers.
K. Vasilatou   +9 more
semanticscholar   +1 more source

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