نتایج جستجو برای: off system
تعداد نتایج: 2371727 فیلتر نتایج به سال:
Background: We investigated whether the lungheart ratio parameter (LHR) can be used to identify the optimum cut off frequency for Butterworth filter in 99mTc myocardial SPECT imaging. Materials and Methods: This study involved a cardiac phantom system consisting of cardiac insert in which 1.10 cm cold defect was inserted into its myocardium wall and filled with 4.0 μCi/ml (0.148 MBq/ml...
To protect the driver of off-highway dump trucks from the harmful vibration, this paper presents the comparison results to determine the optimal damping of the seat system by different optimization design plans. Three optimization schemes are considered including individually optimizing the damping of the cushion, individually optimizing the damping of the seat suspension, and integrately optim...
In the field of wearable computing the information selection and presentation should be adapted to the professional and his current context of use. Nowadays, uncounted Content-Management Systems provide access to huge amount of information, but without context, information is just data. To kick off the next step for intelligent information systems the article introduces a new approach for the m...
Background & Objectives : Local exhaust ventilation system (LEV) is one of the most common engineering controls methods for the chemical agents in workplaces. This study aimed to determine the efficiency assessment of the LEV system for control of Fe2O3 dust in the process of oxide screen unit at iron making in steel industry . Methods : The LEV system with an extensive network...
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