Results 261 to 270 of about 2,615,956 (315)

The Quality Factor for Photons

Radiation Protection Dosimetry, 1990
A method is presented here for calculating effective quality factors for organ dose equivalents and the operational quantities defined in the ICRU sphere, according to the dose distribution in linear energy transfert or linear energy. It is shown that all proposed functions for Q, as well as the present convention, lead to photon quality factors ...
Drexler, G.G., Veit, R., Zankl, M.
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LED Power Factor and Quality Factor

2019 IEEE Industry Applications Society Annual Meeting, 2019
This paper presents the LED power factor and quality factor simply characterized from the available terminal average current, average voltage, and RMS current to evaluate the electric power quality of LEDs. The LED average power is composed of the bandgap power and the resistive power due to the forward voltage and equivalent series resistor in the LED
Ray-Lee Lin, Po-Nien Huang
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Quality Factors

Health Physics, 1988
The quality factor, Q, is a dimensionless modifier used in converting absorbed dose, expressed in gray (or rad), to dose equivalent, expressed in sievert (or rem). The dose equivalent is used in radiation protection to account for the biological effectiveness of different kinds of radiation. The quality factor is related to both linear energy transfer (
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Human Factors and Quality Improvement

Clinics in Perinatology, 2010
Human factors analysis (HFE) presents a formidable contribution to quality improvement (QI) in the neonatal intensive care unit (NICU). The science behind the fundamental principles concerning the design of work systems that match the needs of the people who work in them is sound and is applied widely in other safety critical situations.
James, Handyside, Gautham, Suresh
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On the Microdosimetric Definition of Quality Factors

Radiation Research, 1985
A formulation of the concept of quality factor based on the microdosimetric quantity lineal energy, y, is described. Toward this end, functions--denoted Specific Quality Functions (SQF)--are defined such that (a) they can be determined directly from observation and (b) a number of them can be used toward setting, by consensus, the values of a ...
M, Zaider, D J, Brenner
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Impact factor and research quality

IEEE Instrumentation & Measurement Magazine, 2014
The need to provide decision makers with information on the amount of work done by scientists has favored a large increase in the usage of citation indicators, such as the Impact Factor (IF). This ratio is defined as the relationship between the number of citations in a given year to articles published in a scientific journal in the two preceding years,
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Factors That Influence the Quality of Crowdsourcing

2015
Crowdsourcing is a technique that aims to obtain data, ideas, and funds, conduct tasks, or even solve problems with the aid of a group of people. It’s a useful technique to save money and time. The quality of data is an issue that confronts crowdsourcing websites; as the data is obtained from the crowd, and how they control the quality of data. In some
May Al Sohibani, Najd Al Osaimi, Reem Al Ehaidib, Sarah Al Muhanna, Ajantha Dahanayake   +4 more
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A “Quality” Quality Factor

The Journal of Portfolio Management, 2023
Zixuan Jiao, Ricky Cooper
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Typology of database quality factors

Software Quality Journal, 1998
Databases are a critical element of virtually all conventional and ebusiness applications. How does an organization know if the information derived from the database is any good? To ensure a quality database application, should the emphasis during model development be on the application of quality assurance metrics (designing it right)?
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