نتایج جستجو برای: quality model
تعداد نتایج: 2744925 فیلتر نتایج به سال:
a semi-empirical mathematical model for predicting physical part of ignition delay period in the combustion of direct - injection diesel engines with swirl is developed . this model based on a single droplet evaporation model . the governing equations , namely , equations of droplet motion , heat and mass transfer were solved simultaneously using a rung-kutta step by step unmerical method . the...
This paper tries to introduce a new mathematical model to understand the state of quality of software by calculating parameters such as the time gap and quality gap with relation to some predefined standard software quality or in relation to some chalked out software quality plan. The paper also suggests methods to calculate the difference in quality of the software being developed and the mode...
Literature presents attributes of effective quality management in building software systems. The value of the capability maturity model (CMM), ISO 9000, and total quality management (TQM) concepts in managing software quality has been widely acknowledged. However, shortcomings of these approaches have also been recognized. For instance, scholars have acknowledged CMM implementation difficulties...
Information quality has already become a decisive factor in information dependent business. Much has been said about the growing importance of data and information quality, and many researching lines over the last decade have looked at specific data and information quality issues from different standpoints. However data and information quality goes beyond the definition of data quality dimensio...
Information quality has become a decisive factor in organizations since it is the basis of strategic decisions. Many researching lines over the last decade have looked at specific data and information quality issues from different standpoints. Taking care about data and information quality goes beyond the definition of data quality dimensions, and today, there is still a lack of an integrative ...
background : quality management is one of the most effective strategies for improving health system performance in developed and developing countries. this research was a comparative study on quality management models in health system of several countries. the main goal of this study was to identify the most significant dimensions of quality management and propose appropriate model for health s...
Data quality has emerged as an important and challenging topic in recent years. In this article we are addressing the conceptual model quality since it has been widely accepted that better conceptual models produce better information systems and thus implicitly improve the data quality. Unfortunately there is neither standard nor agreed framework for managing conceptual models quality. This art...
background and purpose: diabetes has adverse effects on the quality of life of patients. roy’s adaptation model could be used to enhance quality of life among diabetic patients. this study aimed to evaluate the effects of roy’s adaptation model in nursing practice on the quality of life in patients with type ii diabetes. methods: this quasi-experimental study was conducted on 60 diabetic patien...
background: luxi is a component of the quorum sensing signaling pathway in vibrio fischeri responsible for the inducer synthesis that is essential for bioluminescence. methods: homology modeling of luxi was carried out using phyre2 and refined with the galaxyweb server. five models were generated and evaluated by errat, anolea, qmean6, and procheck. results: five refined models were generated b...
water quality assessment provides a scientific basis for water resources development and management. this case study proposes a factor analysis- hopfield neural network model (fhnn) based on factor analysis method and hopfield neural network method. the results showed that the factor analysis (fa) technique was introduced to identify important water quality parameters. results revealed that bio...
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