This paper presents the performance-based optimization of strut-and-tie models in reinforced concrete beam-column connections. The performance-based optimization (PBO) technique is employed to investigate optimal strut-and-tie models in reinforced concrete beam-column connections. Developing strut-and-tie models in reinforced concrete beam-column connections is treated as a topology optimizatio...

liquid-liquid equilibria for the (water + lactic acid + benzyl alcohol or p-xylene) ternary systems were investigated at atmospheric pressure and in the temperature range from 298.15-318.15 k. the studied systems exhibit two types of liquid-liquid equilibrium (lle) behavior. the system consisting of benzyl alcohol displays type-1 lle behavior, while a type-2 behavior is exhibited by the other s...

Angiopoietin-1 (Ang-1) belongs to a novel family of endothelial growth factors that function as ligands for an endothelialspecific receptor tyrosine kinase (Tie-2). The Ang-/Tie-2 system may contribute to angiogenesis and vascular remodeling by mediating interactions of endothelial cells with smooth muscle cells and pericytes. The spatial distribution and temporal expression of Ang-1 and Tie-2 ...

Why some dyadic interactions are more likely than others to trigger hinder the generation of novel and useful ideas? To investigate this question, we examine the attributes of dyadic ties that influence the generation of creative ideas, and how the strength of influence changes contingently on the mix use of communication media. Our study extends previous research by examining the impacts of Si...

The expression of angiopoietin1 and 2 (ang1 and 2) and their receptor tie-2 was studied in avian embryos using in situ hybridization. Ang1 was transcribed in the mesenchymal cells surrounding venous endothelium expressing tie-2. By contrast, ang2 was transcribed around arteries in which the endothelium down-regulated tie-2 mRNA. The aorta and large arteries of the heart outflow tract were never...

A micro strip-fed printed bow-tie antenna is presented inorder to achieve wide bandwidth, high gain, and size reduction. A comparisonbetween the bow-tie and the quasi-Yagi (dipole and director)antennas shows that the bow-tie antenna has a wider bandwidth, highergain, lower front-to-back ratio, lower crosspolarization level, andsmaller size. Two-element arrays are designed and their characterist...

background a doctor’s competence and professionalism is often judged on the basis of attire. our lady of lourdes (olol) is a leading irish hospital in the implementation of bare below the elbows (bbte) policy, however surgical attire is not standardised and there is great variability in attire worn on wards. we aimed to evaluate patients attitude towards surgeons attire in olol.   methods a pro...

Cluster supply chain (CSC) is a special kind of enterprise network with double feature of cluster and supply chain and is an important channel for enterprises close to the knowledge, resources, markets, and technologies. Cluster supply chain has special network structure and network relational which are different from general cluster and supply chain. In a particular industry cluster region, al...

including baseline length and tilt. Successful implementation Ground tie points have been used to improve the accuracy of a DEM derived from interferometric SAR (I~SAR) data. The number of tie points required for ensuring certain accuracy of the I~SAR-derived DEM was investigated in this study in two ways. One is the least-squares estimate of the corrections to a DEM using tie points, and the o...