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...

The physiochemical and bacteria diversity of Otamiri River was analyzed using standard microbiological methods. A total seventy two (72) water twenty four (24) sediment samples were collected. routine plate count revealed that the number heterotrophic present ranged from 1.00E+06 Cfu/ml to 9.70E+06 Cfu/ml, fecal coliform 2.00E+05 9.00E+06 Salmonella/Shigella 3.50E+05 1.52E+07 Staphylococcus 1.7...

Contents List of tables 5 List of figures 5 Acronyms and abbreviations 6 Samenvatting 7 1. Introduction 11 2. Regulations and markets 13 2.1 Current market structures-centralised-liberalised context 13 2.2 System balancing and power quality 15 2.3 Energy prices-tariff structures 18 3. Functional requirements of grids with distributed generation 21 3.1 Functional requirements for future decentra...

Season’s Greetings and Best Wishes for a prosperous 1996 from: Cellular Networking Perspectives! IS-41 Revision C Approved for Publication! evision C of the TIA IS-41 standard for inter-system operations to support handoff, automatic roaming, validation and authentication has been approved for TIA publication. With some minor layout modifications, the document will also be submitted for ballot ...

We define the discrete norm of a complex m× n matrix A by ‖A‖∆ := max 06=ξ∈{0,1}n ‖Aξ‖ ‖ξ‖ , and show that c √ log h(A) + 1 ‖A‖ ≤ ‖A‖∆ ≤ ‖A‖, where c > 0 is an explicitly indicated absolute constant, h(A) = √ ‖A‖1‖A‖∞/‖A‖, and ‖A‖1, ‖A‖∞, and ‖A‖ = ‖A‖2 are the induced operator norms of A. Similarly, for the discrete Rayleigh norm ‖A‖P := max 06=ξ∈{0,1} 06=η∈{0,1} |ξAη| ‖ξ‖‖η‖ we prove the esti...

1 I would like to thank J. Perez-Lopez and S. Roca for providing unpublished or difficult to obtain material for this paper and F. Alvarez for his comments at the second ASCE meetings where the paper was first presented.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