This paper presents quantitative information on the effectiveness of seismic retrofit solutions using bilinear oil dampers for seismically deficient existing tall steel buildings. For this purpose, a benchmark 40-story space moment-resisting frame building is studied that represents 1970s design practice in North America. Rigorous performance assessment based ASCE 41 recommendations reveals hig...

ASCE 7-16 has provided a comprehensive platform for the performance-based design of tall buildings. The core of the procedure is based on nonlinear response history analysis of the structure subjected to recorded or simulated ground motions. This study investigates consistency in the ASCE 7-16 requirements regarding the use of different types of ground motions. For this purpose performance of a...

1 I would like to thank J. Perez-Lopez and S. Roca for providing unpublished or difficult to obtain material for this paper and F. Alvarez for his comments at the second ASCE meetings where the paper was first presented.

Objectives: 1. To find that ASCE can attenuate severe inflammation and promote skin barrier reconstruction in atopic dermatitis model. 2. understand adipose stem cell exosome (ASCE) be a paradigm shift regenerative aesthetics & therapeutics. Introduction: Exosomes, nano-sized extracellular vesicles, are the most important mediator for intercellular communication. For last years, dual function o...

Forum papers are thought-provoking opinion pieces or essays founded in fact, sometimes containing speculation, on a civil engineering topic of general interest and relevance to the readership journal. The views expressed this article do not necessarily reflect ASCE Editorial Board

Broadband signal transmission over frequencyselective fading channel often requires accurate channel state information at receiver. One of the most attracting adaptive channel estimation methods is least mean square (LMS) algorithm. However, LMS-based method is often degraded by random scaling of input training signal. To improve the estimation performance, in this paper we apply the standard l...