نتایج جستجو برای: system loss

تعداد نتایج: 2595449  

Journal: :IEEE Transactions on Nuclear Science 1975

Journal: :research in molecular medicine 0
narges karimi department of neurology, clinical research development unit of bou ali sina hospital, mazandaran university of medical sciences, sari, iran nasim tabrizi department of neurology, clinical research development unit of bou ali sina hospital, mazandaran university of medical sciences, sari, iran mahmoud abedini department of neurology, clinical research development unit of bou ali sina hospital, mazandaran university of medical sciences, sari, iran

multiple sclerosis (ms) is a chronic inflammatory demyelinating disease of the central nervous system that inflammation, demyelination, oligodendrocyte loss, gliosis, axonal injury and neurodegeneration are the main histopathological hallmarks of the disease. although ms was classically thought as a demyelinating disease, but axonal injury occurs commonly in acute inflammatory lesions. in ms mi...

Ali Movaghar Mehdi Kargahi

This paper introduces an analytical method for approximating the performability of a firm realtime system modeled by a multi-server queue. The service discipline in the queue is earliestdeadline- first (EDF), which is an optimal scheduling algorithm. Real-time jobs with exponentially distributed relative deadlines arrive according to a Poisson process. All jobs have deadlines until the end of s...

Optimal capacitor placement, considering power system loss reduction, voltage profile improvement, line reactive power decrease and power factor correction, is of particular importance in power system planning and control. The distribution system operator calculates the optimal place, number and capacity of capacitors based on two major purposes: active power loss reduction and return on invest...

Journal: :acta medica iranica 0
sasan dabiri otorhinolaryngology research center, amir alam hospital, tehran university of medical sciences, tehran, iran. nasrin yazdani otorhinolaryngology research center, amir alam hospital, tehran university of medical sciences, tehran, iran. mahdis esfahani otorhinolaryngology research center, amir alam hospital, tehran university of medical sciences, tehran, iran. niloufar tari otorhinolaryngology research center, amir alam hospital, tehran university of medical sciences, tehran, iran. susan adil otorhinolaryngology research center, amir alam hospital, tehran university of medical sciences, tehran, iran. zahra mahvi otorhinolaryngology research center, amir alam hospital, tehran university of medical sciences, tehran, iran.

meniere’s disease is the disorder of inner ear characterized by vertigo, tinnitus and sensorineural hearing loss. the vestibular evoked myogenic potential (vemp) test could be useful in the analysis of saccular function, and diagnosis of meniere’s disease. in this study, we’ve analyzed the saccular function, using vemp test in different groups of meniere’s disease. patients were categorized as ...

Journal: :مدیریت خاک و تولید پایدار 0
امیر بهزاد بذرگر استادیار گروه زراعت، دانشگاه آزاد اسلامی، واحد نیشابور افشین سلطانی استاد گروه زراعت دانشگاه علوم کشاورزی و منابع طبیعی گرگان علیرضا کوچکی استاد گروه زراعت دانشکده کشاورزی دانشگاه مشهد ابراهیم زینلی استادیار گروه زراعت دانشگاه علوم کشاورزی و منابع طبیعی گرگان علیرضا قائمی استادیار بخش تحقیقات چغندرقند، مرکز تحقیقات کشاورزی و منابع طبیعی خراسان رضوی امیر حجارپور مدرس گروه علوم کشاورزی دانشگاه پیام نور ایران

nitrogen is one of the most important nutrients in crop production, but it's losses to the environment is harmful. the sundial model (simulation model of n dynamics in the soil) was used to quantify the cycle of n and it's losses in different production systems of sugar beet (beta vulgaris l.) in former khorasan province, east of iran. the data were collected from traditional, semi-me...

Amir Reza Zare Bidaki Mohsen Jahanshahi Sayyid Mohsen Houshyar

Modern control systems widely use network to decrease the implementation cost and also increase the performance. Although they have several advantages, they suffer from some limitations and deficiencies. Packet loss is one of the main limitations which affect the control system in different conditions and finally can lead to system instability. To prevent such problems it is important to model ...

Multiple sclerosis (MS) is a chronic inflammatory demyelinating disease of the central nervous system that inflammation, demyelination, oligodendrocyte loss, gliosis, axonal injury and neurodegeneration are the main histopathological hallmarks of the disease. Although MS was classically thought as a demyelinating disease, but axonal injury occurs commonly in acute inflammatory lesions. In MS mi...

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