...Toan Dao; Chao Zhang; Mirko van der Baan; Martin Landrø ABSTRACT Simultaneous shooting offers opportunities for significant cost savings in seismic data acquisitions. The most common strategy uses random delay shots where source separation is achieved during the processing stage, thereby doubling...

... of acquisition geometry, such as low-cost and high-density observations. However, the collected DAS records always suffer from various types of noise, which poses challenges for subsequent processing. Thus, deep learning-based solutions have addressed the attenuation of seismic background noise. Denoising...

... ). Performance-based earthquake engineering holistic seismic design cost-benefit analysis rapid design optimization structural and nonstructural upgrades A further challenge facing decision makers when attempting to reduce exposure to seismic loss is optimizing the upgrade investment. Recently, several...

...Dana Sirota; Jeffrey Shragge; Richard Krahenbuhl; Andrei Swidinsky; Nicaise Yalo; John Bradford ABSTRACT Insufficient access to safe drinking water is one of the most challenging global humanitarian issues. The development of low-cost microcontrollers and the widespread availability of cheap...

...Gustavo Loa; Alejandro Muñoz; Sandra Santa-Cruz Incremental seismic rehabilitation (ISR) consists of a set of discrete rehabilitation actions in order to decrease initial costs and to avoid long-lasting disruptions. Nevertheless, there are few cases of incrementally retrofitted buildings and few...

...Juan F Fung, M.EERI; Siamak Sattar, M.EERI; David T Butry; Steven L McCabe, M.EERI This article presents the current state-of-practice with respect to quantifying the total cost to retrofit an existing building. In particular, we combine quantitative, qualitative, and heuristic data to provide...

...Gaetano Falcone; Vitantonio Vacca; Federico Mori; Giuseppe Naso; Daniele Spina ABSTRACT Evaluation of seismic retrofitting costs, a key issue in the risk mitigation strategies, requires the estimation of the building performance and the forecast of the site response. In addition, a target building...

... and blockage to traffic. The wet season of 2018 was particularly severe and triggered many landslides that blocked roads for hours, and days in some cases. The cost of clearing these landslides amounted to an average of almost US$5000 per km. Because of the relatively low traffic volumes that use the mountain...

.... In addition, this orientation coincides with the most cost efficient orientation when n 1 and n 2 are the two smallest dimensions and their ratio is the closest to one ( Popa et al., 2019 ). We also consider the physical meaning of this orientation. For seismic data, time is often...

...Simona Bianchi, M.EERI; Jonathan Ciurlanti; Stefano Pampanin, M.EERI Innovative damage-mitigation technologies have been recently developed to improve the seismic performance of structural and non-structural elements. The combination of these solutions can lead to a high-performance and cost...

... risk posed by steep creek processes to buried pipelines. Risk is defined as the FLoC and does not incorporate other consequences, such as environmental impact, regulatory fines, cleanup costs of spills, legal fees for claim defenses, service interruptions, share price decrease, and adverse impacts...

... aquifers. We argue that harvesting geothermal energy is economically feasible almost anywhere in the Netherlands with an alternative concept of low unit cost (LUC) installations. LUC produces at a limited rate from cleverly designed high-quality installations that can be developed at a considerably lower...

... works, in any digital medium for any responsible purpose, subject to proper attribution of authorship.” As pointed out by Speer et al. (2013), the main drivers towards OA publication were the ever-increasing subscription costs of journals and the concomitant static or shrinking library budgets...

...Antonio Silva, M.EERI; Jose Miguel Castro; Ricardo Monteiro State-of-the-art seismic performance assessment of buildings requires a realistic estimation of the repair cost of structural and non-structural components. In this context, the US-based FEMA P-58 guidelines feature a procedure and repair...

..., three main objectives should be considered: (1) dense spatial source and receiver locations to achieve optimum subsurface illumination and wavefield sampling; (2) coverage of the full frequency spectrum, i.e., broadband acquisition; and (3) cost efficiency. Consequently, an effort has been made...

...Juan F Fung; Siamak Sattar, M.EERI; David T Butry; Steven L McCabe, M.EERI This article presents a methodology for estimating seismic retrofit costs from historical data. In particular, historical retrofit-cost data from Federal Emergency Management Agency (FEMA) 156 is used to build a generalized...

.... These mostly rely on consequence functions derived by simulating the repair actions needed to restore a component to its pre-earthquake condition. However, due to the lack of data, only a few studies have benchmarked theoretical loss assessments with actual repair costs monitored in the aftermath of earthquake...

... operational costs. These types of geologic conditions are present in the Krishna-Godavari Basin, where a series of horst and grabens defined by deep-seated faults and persistent high sedimentation rates through geologic time, result in the development of challenging conditions for exploratory drilling. We...

...Keith A. Porter, M.EERI; Charles R. Scawthorn, M.EERI; James L. Beck, M.EERI We examine the cost-effectiveness of improvements in woodframe buildings. These include retrofits, redesign measures, and improved quality in 19 hypothetical woodframe dwellings. We estimated cost-effectiveness for each...