نتایج جستجو برای: brb frame
تعداد نتایج: 101453 فیلتر نتایج به سال:
OBJECTIVE To elucidate the mechanism of the unique beneficial effect of intravitreal steroid therapy on diabetic macular edema, we investigated the effect of locally administered triamcinolone acetonide (TA) on the expression of vascular endothelial growth factor (VEGF)-A and its receptors in retinas of rats with streptozotocin (STZ)-induced diabetes. We then correlated the expression of these ...
Background: Different bracing systems of steel Eccentric Braces (EBs) and steel-concrete Buckling-Restrained (BRBs) can be used in frames order to make the stronger resisting lateral loads. These with EBs or BRBs are generally called Eccentrically Braced Frames (EBFs) (BRBFs), respectively. Objective: This study aims investigate having moment link. Methods: The EBFs BRBFs nonlinearly analysed e...
Diagnostic Modelling for Induction Motor Faults via ANFIS Algorithm and DWT-Based Feature Extraction
This paper proposes an Adaptive Neural Fuzzy Inference System (ANFIS) model for diagnosis of combined Inter Turn Short Circuit (ITSC) and Broken Rotor Bar (BRB) faults in a Squirrel Cage Induction Motor (SC-IM). The signal the stator current is obtained from really healthy faulty SC-IM. Experimental tests have been set up using 1.5 Hp/380 V three-phase SC-IM with different ITSC BRB under loadin...
Diabetic retinopathy (DR) is a retinal disease representing one of the main causes vision loss in developed countries. In early stage DR, disruption blood barrier (BRB) observed, and it will lead to vascular permeability visual impairment. Therefore, protection against breakdown BRB may be useful strategy for prevention DR. Matrix metalloproteinases (MMPs) plays an important role degradation ex...
Learning emotion assessment is a non-negligible step in analyzing learners’ cognitive processing. Data are the basis of learning assessment. However, existing models cannot balance model accuracy and interpretability well due to influence uncertainty process data collection parameter errors. Given above problems, new based on evidence reasoning belief rule base (E-BRB) proposed this paper. Firs...
The Behavior of conventional braced frames, are not the same in tension and compression. This problem can be improved by prevention of buckling under compressive loads, which is called buckling restrained brace(BRB). In this field TTD metal damper also have much attention due to simplicity in construction and execution. This damper is recommended because of accessing to better performance than ...
Depending on the tectonic activities, most buildings subject to multiple earthquakes, while a single design earthquake is suggested in most seismic design codes. Perhaps, the lack of easy assessment to second shock information and sometimes use of inappropriate methods in estimating these features cause successive earthquakes mainly were ignored in the analysis procedure. In order to overcome t...
در طراحی سازه¬ها تحت بارهای جانبی، جذب انرژی توسط سیستم¬های جاذب انرژی از مهمترین بحث¬های مطرح می¬باشد. از جمله سیستم¬های باربر جانبی، مهاربندها می¬باشند. مهاربندهای مقید در برابر کمانش brb)) و مهاربندهای از جنس آلیاژهای حافظه¬دار شکلی (sma)، سیستم¬های جدید در این زمینه می¬باشند. در این تحقیق به مقایسه¬ی دو سیستم مهاربندی پرداخته شده است. سیستم باربر جانبی در این تحقیق قاب خمشی همراه با مهاربند...
قاب های دارای مهاربند مقاوم در برابر کمانش (brbf) از جمله سیستم های مقاوم در برابر بارهای جانبی می باشند که در سال های اخیر مورد توجه مهندسان قرار گرفته است. brb شامل هسته فولادی است که با مکانیسمی از کمانش فشاری آن جلوگیری شده است. این مهاربند ها به دلیل عدم کمانش، ظرفیت تقریبا یکسان در فشار و کشش و ظرفیت بالای استهلاک انرژی، رفتار مناسبی در برابر زلزله از خود نشان می دهند. البته این مهاربندها...
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