نتایج جستجو برای: دستگاه vfm

تعداد نتایج: 31229  

2007
H S Ku A R Ball

Part I and part II of the paper in the same series, Review Microwave Processing of Materials: Part I and Review Microwave Processing of Materials: Part II, described the fixed frequency microwave processing of materials and variable frequency processing of materials respectively. This paper, Review Microwave Processing of Materials: Part III, details the simulation of fixed and variable frequen...

2013
Alfonso Reginelli Francesca Iacobellis Lucia Del Vecchio Luigi Monaco Daniela Berritto Graziella Di Grezia Eugenio Annibale Genovese Melchiore Giganti Salvatore Cappabianca

BACKGROUND Dysphagia consists in alteration of the swallowing mechanism, due to different pathological conditions, which can occur at different levels. The exact prevalence of dysphagia is unclear, even if some AA suggest that 15% of the elderly population is affected. Aim of this study is to analyze the main VFMSS findings in elderly dysphagic patients. MATERIALS AND METHODS The VFMSS of 59 ...

Journal: :Stroke 1983
S Uematsu A Yang T J Preziosi R Kouba T J Toung

With the use of a new ultrasonic volume flow meter (VFM), over 8000 measurements of common carotid blood flow were made in 120 normal control subjects and 550 patients with various neurological disease. The accuracy of the flow meter in measuring blood flow on an experimental model ranged from 93 to 97%. In normal subjects, common carotid blood flow varies with age. It increased from newborn to...

2000
Vladimir Shtern Fazle Hussain Miguel Herrada

Important new features are found for a family of swirling jets with velocity v;z, where z is the distance from the jet origin. First, there is a sharp minimum of the pressure coefficient at a certain value of the swirl number Sw which is nearly n independent; this feature can be utilized in technological devices. Second, as Sw increases, a separation zone develops, where the fluid is not at res...

پایان نامه :وزارت بهداشت، درمان و آموزش پزشکی - دانشگاه علوم پزشکی و خدمات بهداشتی درمانی تهران 1336

چکیده ندارد.

Journal: :Expert Systems With Applications 2022

Steady-state process models are common in virtual flow meter applications due to low computational complexity, and model development maintenance cost. Nevertheless, the prediction performance of steady-state typically degrades with time inherent nonstationarity underlying being modeled. Few studies have investigated how learning methods can be applied sustain accuracy meters. This paper explore...

Journal: :Remote Sensing 2022

Sea fog detection has received widespread attention because it plays a vital role in maritime activities. Due to the lack of sea observation data, meteorological satellites with high temporal and spatial resolution have become an essential means detection. However, performance is unsatisfactory low clouds are hard distinguish on satellite images they similar spectral radiance characteristics. T...

Journal: :international journal of preventive medicine 0
hassan rajabi-vardanjani ehsanollah habibi siyamak pourabdian habibollah dehghan mohamad reza maracy

background: along with the rapid growth of technology its related tools such as computer, monitors and video display terminals (vdts) grow as well. based on the studies, the most common complaint reported is of the vdt users. methods: this study attempts to design a proper tool to assess the visual fatigue of the vdt users. first draft of the questionnaire was prepared after a thorough study on...

2015
D. Tsamboulas

Recent transport sector liberalisation, as well as global economic crisis, is favouring the implementation of transport infrastructure projects through PublicePrivate Partnerships (PPP). However, there is a debate as to whether PPP schemes are a better option than conventional procurement. To this end, an evaluation framework is proposed, to assess which of these two alternative schemes for tra...

پایان نامه :وزارت بهداشت، درمان و آموزش پزشکی - دانشگاه علوم پزشکی و خدمات بهداشتی درمانی تهران 1342

چکیده ندارد.

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