Results 21 to 30 of about 2,188,094 (296)

Study on a New Label Dosimeter for Radiation Processing

open access: yesJournal of Isotopes, 2016
In order to monitor the absorbed dose of goods in 60Co γ-rays and electron beams, a new label dosimeter had been developed for dose measurements. The label dosimeter had a multilayer structure, and the core of which was a layer of radiochromic film.
CAI Zhan-fan   +3 more
doaj   +1 more source

A PM1.0/2.5/10 Trichotomous Virtual Impactor Based Sampler: Design and Applied to Arid Southwest Aerosols—Part II: Application to Arid Southwest Aerosols

open access: yesKONA Powder and Particle Journal, 2014
A PM1.0/2.5/10 Trichotomous sampler has been developed to determine if the particles in the saddle point between the coarse and fine particle modes (specifically the 1.0 μm to 2.5 μm size range) are primarily
Virgil Marple   +2 more
doaj   +1 more source

Analysis of the Spatial Properties of Correlated Photon in Collinear Phase-Matching

open access: yesPhotonics, 2021
In this paper, the spatial properties of correlated photon in collinear phase-matching in the process of spontaneous parametric down conversion (SPDC) are researched.
Lin Yin   +5 more
doaj   +1 more source

Accurate Automation of Deadweight Force Standard Machine Based on Artificial Intelligent Model at NMCC-SASO-KSA [PDF]

open access: yesEPJ Web of Conferences
Accurate force measurements are critical in a various fields including metrology, material testing, and quality control. In this study, we propose an automated process for precise force measurements using Dead weight standard machines up to 1kN.
AlGhamdi Hamad A.   +2 more
doaj   +1 more source

FY-3D MERSI On-Orbit Radiometric Calibration from the Lunar View

open access: yesSensors, 2020
Limited by the on-orbital calibration capability, scaling the measured radiance in accuracy and stability is challenging for the Earth observation satellites in the reflective solar bands (RSBs).
Ronghua Wu   +6 more
doaj   +1 more source

Spectrophotometric calibration of low-resolution spectra

open access: yes, 2020
Low-resolution spectroscopy is a frequently used technique. Aperture prism spectroscopy in particular is an important tool for large-scale survey observations. The ongoing ESA space mission Gaia is the currently most relevant example.
Carrasco, Josep Manel   +3 more
core   +1 more source

Calibrated Submanifolds [PDF]

open access: yes, 2020
We provide an introduction to the theory of calibrated submanifolds through the key examples related with special holonomy. We focus on calibrated geometry in Calabi-Yau, G$_2$ and Spin(7) manifolds, and describe fundamental results and techniques in the field.
openaire   +2 more sources

Research and verification of internal and external measurement methods of large oil storage tanks capacity based on 3D lasers canning [PDF]

open access: yesE3S Web of Conferences, 2021
Nowadays, as an important tool for petrochemical enterprises to store and transport various petrochemical products, large oil storage tanks are highly praised by a large number of oil enterprises because of their characteristics of large capacity and ...
Chen Xianlei   +9 more
doaj   +1 more source

Offset-calibration with Time-Domain Comparators Using Inversion-mode Varactors [PDF]

open access: yes, 2019
This paper presents a differential time-domain comparator formed by two voltage controlled delay lines, one per input terminal, and a binary phase detector for comparison solving.
Delgado Restituto, Manuel   +2 more
core   +1 more source

Establishment of AC-DC transfer standard at SASO-NMCC [PDF]

open access: yesEPJ Web of Conferences
This paper documents the achievements of traceability and the technical evaluation of the newly established AC-DC Difference calibration service for AC voltage measurements at the NMCC, KSA.
Alrobaish Abdullah, Aljomaie Ahmed
doaj   +1 more source

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