نتایج جستجو برای: measurement system

تعداد نتایج: 2586830  

Journal: :iranian journal of radiation research 0
m.a. mosleh-shirazi department of radiotherapy, namazi hospital, shiraz university of medical sciences, shiraz, iran h. taylor department of radiotherapy, royal marsden hospital, sutton, surrey, uk a.p. warrington joint department of physics, royal marsden hospital and institute of cancer research, sutton, surrey, uk f.h. saran department of radiotherapy, royal marsden hospital, sutton, surrey, uk

background: in order to assign appropriate planning target volume (ptv) margins, each centre should measure the patient positioning deviations for their set-up techniques. at the royal marsden hospital, uk, a conformal shell (cast) system is used when a stereotactic frame is not suitable. in this paper, we report on a series of measurements with the aim of obtaining the systematic and random co...

Measurement systems analysis (MSA) has been applied in different aspect of industrial assessments to evaluate various types of quantitative and qualitative measures. Qualification of a measurement system depends on two important features: accuracy and precision. Since the capability of each quality system is severely related to the capability of its measurement system, the weakness of the two...

ژورنال: کنترل 2020

In this study, a novel fault detection scheme is developed for a class of nonlinear system in the presence of sensor noise. A nonlinear Takagi-Sugeno fuzzy model is implemented to create multiple models. While the T-S fuzzy model is used for only the nonlinear distribution matrix of the fault and measurement signals, a larger category of nonlinear systems is considered. Next, a mapping to decou...

Temperature measurement in microwave systems is essential for thermally driven processes, namely, catalytic reactions and ceramic sintering. Although, the application of direct thermometry methods, namely, thermocouples, have been commonly articulated in the available literature, however, contacted temperature measurement mechanisms have aroused concerns associated with the disruption of the el...

Journal: :IEEJ Transactions on Electronics, Information and Systems 1997

Organizational structure determines the scope of decisions, tasks, responsibilities, goals, perspectives and rewards for achieving results. In recent decades, due to environmental changes and dramatic technological advances, organizational structure has changed from Mechanistic to organic. The purpose of the restructuring is to facilitate the achievement of the organization's goals. Changing st...

2007
Yanzheng Liu Guanghui Teng Chengwei Ma Shirong Liu

The K-value (the overall heat transfer coefficient) is an important factor to reflect thermal performance of the covering material in a green house. The measuring process of K -value was burdensome in labors, low accuracy, complicated in dealing with data that is difficult to meet the development of modern agriculture. New testing methods need to be developed, and specially designed for greenho...

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