نتایج جستجو برای: switched nd
تعداد نتایج: 55736 فیلتر نتایج به سال:
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...
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 ...
efficacy of sodium hypochlorite activated with laser in intracanal smear layer removal: an sem study
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 ...
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...
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...
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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