نتایج جستجو برای: quality control attenuation

تعداد نتایج: 2019937  

M Atyabi M Khalili

Hyperalgesia is one of the symptoms of the diabetic neuropathy, is considered as a major clinical complaint in these patients, and could affect the quality of their living style. Since attenuation of hyperalgesia is very important, in the present study the possible analgesic effect of aqueous extract of coriander was investigated in male streptozotocin-diabetic rats using standard formalin test...

M Atyabi M Khalili

Hyperalgesia is one of the symptoms of the diabetic neuropathy, is considered as a major clinical complaint in these patients, and could affect the quality of their living style. Since attenuation of hyperalgesia is very important, in the present study the possible analgesic effect of aqueous extract of coriander was investigated in male streptozotocin-diabetic rats using standard formalin test...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شهید باهنر کرمان - دانشکده ریاضی و کامپیوتر 1391

در این پژوهش، نخست برآوردگری برای نقطه تغییر پارامتر فرایند دو جمله ای3 که تغییر به صورت روند خطی می باشد، بر پایه تابع درستنمایی و برآورد جدیدی برای پارامتر شیب، ارائه شده است. پس از آن برآوردگر نقطه تغییر پله ای در پارامتر فرایند دو جمله ای بر پایه بهینه سازی تابع درستنمایی به کمک الگوریتم وراثتی ارائه شده است. عملکرد برآوردگرهای پیشنهادی با انجام مطالعات گسترده شبیه سازی مورد ارزیابی قرار گر...

Journal: :journal of optimization in industrial engineering 2010
ahmad ostadsharifmemar seyed taghi akhavan niaki

in this paper, first the available single charting methods, which have been proposed to detect simultaneous shifts in a single process mean and variance, are reviewed. then, by designing proper simulation studies these methods are evaluated in terms of in-control and out-ofcontrol average run length criteria (arl). the results of these simulation experiments show that the ewma and ewms methods ...

Journal: :فیزیک زمین و فضا 0
عماد علیخانی دانشجوی کارشناسی ارشد، گروه فیزیک زمین، موسسه ژئوفیزیک دانشگاه تهران، ایران حبیب رحیمی استادیار، گروه فیزیک زمین، موسسه ژئوفیزیک دانشگاه تهران، ایران

seismic waves when crossing the earth in heterogeneous and anisotropic environments, having interaction. recognizing the impact of these factors on the seismograms help us to find out more information about interior of the earth. coda waves are the main reason for the random heterogeneities in earth. local earthquakes in the northeast region of iran with epicentral distance less than 200 km is ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شیخ بهایی - دانشکده زبانهای خارجی 1391

even though, to date, a lot of studies have been conducted on the subject of politeness theory, there are very few studies regarding the applicability of this theory to translation between english and persian which shows the reason behind conducting the present study. this study was carried out with the aim of highlighting whether there is any difference between english and persian methods of u...

Afshin Zarghi, MH Hoshdar Tehrani S Fathali

Nitrofurazone is one of the antibacterial nitrofuran agents used topically for skin infections. The drug is effective on the majority of infectious microorganisms. Because of the importance of this drug in clinic, in this study various methods of synthesis of nitrofurazone were examined and the most appropriate method, applicable to pharmaceutical industry was chosen and optimized from the poin...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس 1389

abstract this study was carried out to compare disinfecting effects of nanosilver with other feed disinfectants on layer hen performance, immune system, gastrointestinal microflora and intestinal morphology. total of 90 layers (lsl) were divided into five groups consisting: 1-control, 2- formalin (200 ppm), 3- formaycin (200 ppm), 4- nanosilver in drinking water (7.5 ppm) and 5-nanosilver in f...

Journal: :journal of mining and environment 2012
prof r.n. singh o aduvire v.f navarro torres

in the past, mining activities have generated major acid drainage sources, which usually carry dissolved metals that flow into the main rivers of the affected basins. the study looks at natural attenuation processes in local, sub-basin and basin areas, in the el bierzo and odiel basins of spain, where coal and metal mining activities were formerly conducted. in this study, sampling and in situ ...

2014
Giorgio Battistelli Daniele Mari Daniela Selvi Alberto Tesi Pietro Tesi

The problem of adaptive disturbance attenuation is addressed in this paper using a switching control approach. A finite family of stabilizing controllers is pre-designed, with the assumption that, for any possible operating condition, at least one controller is able to achieve a prescribed level of attenuation. Then, at each time instant, a supervisory unit selects the controller associated wit...

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