نتایج جستجو برای: switched nd

تعداد نتایج: 55736  

A two stage sub-µW Inverter-based switched-capacitor amplifier-filter is presented which is capable of amplifying both spikes and local field potentials (LFP) signals. Here we employ a switched capacitor technique for frequency tuning and reducing of 1/f noise of two stages. The reduction of power consumption is very necessary for neural recording devices however, in switched capacitor (SC) cir...

Journal: :Canadian Medical Association Journal 2016

2011
Changlin Li Fei Long Guohui Ren CHANGLIN LI GUOHUI REN

The disturbance attenuation problem for a class of discretetime switched linear systems with exponential uncertainties via switched state feedback and switched dynamic output feedback is investigated, respectively. By using Taylor series approximation and convex polytope technique, exponentially uncertain discrete-time switched linear system is transformed into an equivalent switched polytopic ...

Journal: :Journal of Physics: Conference Series 2009

Journal: :journal of lasers in medical sciences 0
shahriar shahriari department of endodontics, faculty of dentistry, hamadan university of medical sciences, hamadan, iran shahin kasraei department of restorative dentistry, dental school, shahid beheshti university of medical sciences, tehran, iran ghodratollah roshanaei department of biostatistics, school of public health, hamadan university of medical sciences hamadan, iran hamed karkeabadi department of endodontics, faculty of dentistry, hamadan university of medical sciences, hamadan, iran hossein davanloo department of endodontics, faculty of dentistry, hamadan university of medical sciences, hamadan, iran

introduction: the purpose of the present study was to evaluate the different concentrations of sodium hypochlorite activated with laser in removing of the smear layer in the apical, middle, and coronal segments of root canal walls by scanning electron microscopy analysis. methods: sixty single-rooted human mandibular teeth were decoronated to a standardized length. the samples were prepared by ...

ژورنال: :مجله دانشکده دندانپزشکی مشهد 0
لقمان لقمان رضایی صوفی loghman rezaee soufi associate professor of operative dentistry, dental research center, school of dentistry, hamadan university of medical of sciences, hamadan, iran.دانشیار دندانپزشکی ترمیمی و زیبایی، مرکز تحقیقات دندانپزشکی، دانشکده دندانپزشکی، دانشگاه علوم پزشکی همدان، ایرانسازمان اصلی تایید شده: دانشگاه علوم پزشکی همدان (hamadan university of medical sciences) شاهین شاهین کسرایی shahin kasraee professor, dept of operative dentistry, school of dentistry, hamadan university of medical of sciences, hamadan, iran.استاد گروه دندانپزشکی ترمیمی و زیبایی، دانشکده دندانپزشکی، دانشگاه علوم پزشکی همدان، ایرانسازمان اصلی تایید شده: دانشگاه علوم پزشکی همدان (hamadan university of medical sciences) کیانا کیانا قنادان kiana ghannadan assistant professor of operative dentistry, school of dentistry, qazvin university of medical of sciences, qazvin, iran.استادیار گروه دندانپزشکی ترمیمی و زیبایی، دانشکده دندانپزشکی، دانشگاه علوم پزشکی قزوین، ایرانسازمان اصلی تایید شده: دانشگاه علوم پزشکی قزوین (qazvin university of medical sciences)

مقدمه:مطالعات نشان داده اند تابش لیزر می تواند منجر به استحکام باند قوی‏تر سیستم ادهزیو شود. لذا هدف از این مطالعه به دست آوردن یک پروتکل مناسب جهت کاربرد لیزرهای  er:yagو nd:yag به منظور بهبود استحکام باند در طی کاربرد یک نوع ادهزیو نسل 6 دو مرحله ای بود. مواد و روش ها:در این مطالعه تجربی، تعداد 70 دندان سالم کشیده شده انتخاب و به 7 گروه مساوی تقسیم گردید.  گروه کنترل(c)  مطابق دستورالعمل کارخ...

Journal: :journal of lasers in medical sciences 0
ahmad moghareh abed department of periodontology, school of dentistry, torabinejad dental research center, isfahan university of medical sciences, isfahan, iran. narges naghsh department of periodontology, school of dentistry, torabinejad dental research center, isfahan university of medical sciences, isfahan, iran. reza birang department of periodontology, school of dentistry, torabinejad dental research center, isfahan university of medical sciences, isfahan, iran. fatemeh shafiei dentist jaber yaghini department of periodontology, school of dentistry, torabinejad dental research center, isfahan university of medical sciences, isfahan, iran. massoud seifi laser application in medical sciences research center, shahid beheshti university of medical sciences, tehran, iran

introduction: dentine hypersensitivity (dh) is characterized by a short sharp pain arising from the exposed dentine, in response to a thermal, evaporative, tactile, osmotic or chemical stimulus. the aim of this study was to evaluate the efficacy of nd:yag laser therapy and desensitizing gel (sensikin®, laboratorios kin s.a., barcelona, spain) in treatment of dentine hypersensitivity. methods: a...

Journal: :Physical review 2021

Nd-based pyrochlore oxides of the form Nd$_{2}B_{2}$O$_{7}$ have garnered a significant amount interest owing to moment fragmentation physics observed in Nd$_{2}$Zr$_{2}$O$_{7}$ and speculated Nd$_{2}$Hf$_{2}$O$_{7}$. Notably this phenomenon is not ubiquitous family, as it absent Nd$_{2}$Sn$_{2}$O$_{7}$, which features smaller ionic radius on $B$-site. Here, we explore necessary conditions for ...

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