نتایج جستجو برای: aci 318
تعداد نتایج: 6722 فیلتر نتایج به سال:
قرارگیری وصله دیوارها در محل تغییرشکل های محتمل غیرخطی ممکن است عملکرد سازه را حین وقوع زلزله های بزرگ تحت تاثیر قرار دهد. آیین نامه aci 318 ضوابطی را برای قرارگیری وصله در شکل پذیری ویژه در ناحیه ای به دور از محل محتمل عملکرد غیرالاستیک در طراحی لرزه ای برای تیرها و ستون ها وضع می کند ولی در مورد دیوارهای سازه ای، حتی دیوارهای سازه ای ویژه محدودیتی را بیان نمی کند. حین وقوع زلزله ممکن است دیوا...
A total of 142 Atherosclerotic cerebral infarction (ACI) patients and 116 controls were enrolled in our study. The Leu125Val polymorphism of PECAM-1 was genotyped using polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) method. The plasma sPECAM-1 level was measured by enzyme-linked immunosorbent assay (ELISA) method. We found a statistically significant difference in...
BACKGROUND Recent observations suggest that migraine and cerebrovascular disease are comorbid conditions. However, the association of migraine with cerebrovascular disease in the population of elderly Chinese has not been established. This prospective case-control study aimed to investigate the prevalence and lesion characteristics of migraine in elderly Chinese patients with acute cerebral inf...
This article investigates the punching shear behavior of recycled aggregate concrete (RAC) two-way slabs. Ten 1500 mm × 100 slabs were tested monotonically. Eight cast with RAC, whereas two control natural (NAC). The RAC incorporated coarse (RCA) at replacement levels 25%, 50%, 75% and 100%. Two flexural reinforcement ratios (0.8% 1.5%) examined. results show that normalized strength 100% decre...
Shear reinforcement is one of the common measures used to strengthen slab–column connections. It can make joint’s load capacity increase. However, when connection subjected an unbalanced bending moment, reduction effect shear on moment worth investigating. Nonlinear finite element analysis was performed reinforced concrete slabs with for various moment-to-shear (M/V) ratios. The effects number ...
PURPOSE To compare clinical outcomes of patients undergoing isolated patellofemoral autologous chondrocyte implantation (ACI) and ACI combined with patellofemoral realignment. METHODS A systematic review was performed by use of PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) guidelines/checklist. We searched PubMed, CINAHL (Cumulative Index to Nursing and Allied He...
OBJECTIVE This study evaluated the prognostic value of the aortic calcification index (ACI), an estimate of abdominal aortic calcification by plain abdominal computed tomography (CT), in terms of left ventricular (LV) diastolic dysfunction, mortality, and nonfatal cardiovascular (CV) events in peritoneal dialysis (PD) patients. METHOD PD patients who received both abdominal CT and echocardiog...
PURPOSE Metastatic renal cell carcinoma (mRCC), as one of the most immunogenic tumors has been the focus of adoptive cellular immunotherapy (ACI), but the effects of ACI on objective response and survival in patients with mRCC are still controversial. Therefore, a systematic review and meta-analysis was performed to address this issue. METHODS A search was conducted in the PubMed database for...
This paper presents an experimental investigation on the behavior of six reinforced concrete columns under elevated temperature. An expanded clay aggregate (LECA) was used in three ,other remain natural .All RC have similar cross sectional dimensions 150mm ×150 mm (width× height); and 1250mm total length. The were designed according to ACI Committee 318-2014 exposed different temper...
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