نتایج جستجو برای: reference standards

تعداد نتایج: 370182  

Journal: :The Indian journal of medical research 2007
Karin Dahllöf

The preferred method to verify the accuracy of a haemoglobinometer is the International Committee for Standardization in Haematology (ICSH) reference measurement of haemoglobin as haemiglobincyanide in whole blood, using a spectrophotometer which has been calibrated directly by the WHO/ICSH primary international reference standard or by means of a commercial standard that has been manufactured ...

2013
Hala M. Abdel Mageed Ali M. El - Rifaie

--The electrical International System of Units (SI) are defined and realized as DC electrical quantities. National Institute for Standards (NIS), Egypt maintains the DC voltage unit by using the DC Josephson Voltage Standard (JVS) as a primary standard for DC voltage adding to eight zener diode reference standards as DC voltage secondary standards. The JVS is used to provide traceability of ele...

Journal: :RFC 2004
Randy Bush Thomas Narten

IETF procedures generally require that a standards track RFC may not have a normative reference to another standards track document at a lower maturity level or to a non standards track specification (other than specifications from other standards bodies). For example, a standards track document may not have a normative reference to an informational RFC. Exceptions to this rule are sometimes ne...

2016
Maria Machado Ciro Tavares Vera Moniz-Pereira Helô André Fátima Ramalho António Veloso Filomena Carnide

This study aimed to translate, adapt and validate the Yale Physical Activity Survey (YPAS) to Portuguese culture in order to assess the level of physical activity in a country with one of the world’s highest percentage of senior citizens. Permission was obtained from the original authors and translated according to WHO guidelines. Validation included 471 older adults (70.3% women; 74.9±6.5 year...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - دانشکده علوم انسانی 1392

this research has been taken among the students of high school in karaj city during the years 1391 and 1392. this is a survey research and data gathering is through questionnaires. studying the “an analysis of students’ tendency toward non-native reference groups in karaj”. the questionnaire was distributed among 260 of these students who were chosen through multi step cluster sampling. conside...

2003
I. Vayshenker H. Haars X. Li J. H. Lehman D. J. Livigni

We describe the results of a comparison of reference standards between the National Institute of Standards and Technology (NIST-USA) and National Institute of Metrology (NIM-China). We report optical fiber-based power measurements at nominal wavelengths of 1310 nm and 1550 nm. We compare the laboratories' reference standards by means of a commercial optical power meter. Measurement results show...

Journal: :Journal of biomedical informatics 2011
Serguei V. S. Pakhomov Ted Pedersen Bridget T. McInnes Genevieve B. Melton Alexander Ruggieri Christopher G. Chute

Our objective is to develop a framework for creating reference standards for functional testing of computerized measures of semantic relatedness. Currently, research on computerized approaches to semantic relatedness between biomedical concepts relies on reference standards created for specific purposes using a variety of methods for their analysis. In most cases, these reference standards are ...

2008
Jean Carlo Rossa Hauck Christiane Gresse von Wangenheim Richard H. de Souza Marcello Thiry

Software process improvement in small organizations in alignment with reference models or standards remains complicated. In this paper, we enhance an approach for software process improvement and introduce the concept of process reference guides as a way to explicitly map reference models/standards and potential solutions in order to systematize and facilitate the process definition in improvem...

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