نتایج جستجو برای: brb
تعداد نتایج: 533 فیلتر نتایج به سال:
A buckling-restrained brace (BRB) serves as a typical load-bearing and energy-dissipative device for the passive control of structures under seismic loading. BRB is generally designed to not yield frequently occurring earthquake (FOE) wind loads, resulting in it having less effectiveness vibration reduction compared with post-yielding performance. To address this dilemma, study proposed concept...
In this paper, an effective procedure for broken rotor bar (BRB) fault detection in a three-phase squirrel-cage induction machine (SCIM) is proposed. This approach relies on motor current signature analysis (MCSA) by observing the specific fault-related component generated applying DC injection braking method. Unlike traditional MCSA, which commonly focused of BRB sidebands around fundamental c...
AIMS The aim of this study was to examine the relationship between a specific glycated haemoglobin (HbA1c) measurement and a pharmaceutical dispensings-based measure of adherence calculated over the 90 days before each HbA1c measure among patients who have newly initiated metformin therapy. METHODS We identified 3109 people with type 2 diabetes who initiated metformin as their first-ever anti...
در این پایان نامه ضریب رفتار سیستم دوگانه قاب خمشی ویژه و بادبند brb که با استفاده از ضوابط استاندارد 2800، بارگذاری لرزه ای شده و به استثناء بادبندهای brb سایر اجزا سازه ای بر اساس مبحث دهم طراحی شده است، با در نظر گرفتن مهمترین عوامل موثر یعنی دو عامل شکلپذیری و مقاومت افزون تعیین شده است. ضریب رفتار و اجزاء آن با استفاده از تحلیل استاتیکی غیر خطی فزاینده و بکارگیری روش یوانگ تعیین گردیده است...
This study proposes a broken rotor bar (BRB) fault diagnosis method for an induction motor using the sum of weighted Fourier series coefficients squares complex current as signal. First, confirms very narrow band-pass filter characteristics to derive specific frequency component. assists us in obtaining BRB signal that exists limited range. Second, magnitude is proportional slip and load condit...
Tiny nanoparticles of dexamethasone palmitate (DXP) were designed as transparent suspensions for intravitreal administration to treat age-related macular degeneration (AMD). The influence three surfactants (PEG-40-stearate and Pluronic block copolymers F68 F127) on size stability was investigated led an optimal formulation based F127 stabilizing DXP nanoparticles. Size measurements TEM revealed...
A new method was developed to deliver locally a bolus dose of a drug to the retinal vasculature. The targeted delivery system was based on encapsulating the drug in heat-sensitive liposomes, which are injected intravenously and lysed in the retinal vessels by a heat pulse generated by a laser. To test if substances delivered in the vessels could also penetrate into the surrounding tissue, 6-car...
سازه های مسلح به مهاربندهای کمانش ناپذیر از جمله معدود سازه های مقاوم در برابر زلزله هستندکه دو خصوصیت سختی جانبی بالا و قابلیت فوق العاده ای در استهلاک انرژی زلزله را بطور همزمان دارا میباشند. با توجه به لرزه خیزی کشور و کاربرد روزافزون این سازه ها در جهان، استفاده و بومی سازی این نوع سیستم مهاربندی در ایران اجتناب ناپذیر بوده و ورود این سیستم باربر جانبی به آیین نامه های طراحی خصوصا آیین نامه...
To determine whether dietary berries and ellagic acid prevent 17beta-estradiol (E(2))-induced mammary tumors by altering estrogen metabolism, we randomized August-Copenhagen Irish rats (n = 6 per group) into five groups: sham implant + control diet, E(2) implant + control diet (E(2)-CD), E(2) + 2.5% black raspberry (E(2)-BRB), E(2) + 2.5% blueberry (E(2)-BB), and E(2) + 400 ppm ellagic acid (E(...
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