Methods of achieving improved seismic performance of communications systems Download PDF EPUB FB2
This TCLEE Monograph provides information on seismic exposure, design, and installation practices that can improve the seismic performance of communication systems. The practices suggested in this report are derived from data collected from earthquake reconnaissance reports and cover both wired and wireless communications.
Get this from a library. Methods of achieving improved seismic performance of communications systems. [Alex Tang; Anshel J Schiff;] -- This mongraph provides information on seismic exposure, design, and installation practices that can improve the seismic performance of communication systems.
Observations of earthquake damage to. Assessment of Performance of Vital Long-Span Bridges in the United States December Front Matter Infrastructure Risk Management Processes: Natural, Accidental, and Deliberate Hazards May methods f or improving the seismic performance of infrastructures.
The work mainly focuses on base isolation and the use of dampers to enhanc e seismic performance. Seismic Control Systems. Design and Performance Assessment. Edited By: S New concepts have recently been developed to address the requirements for better structural performance and a more effective use of new materials at a lower cost.
This book disseminates knowledge and increases awareness on this very critical subject and thus ultimately. Examine how improved information from seismic monitoring systems could reduce future losses in a cost-effective manner, taking into consideration the major impact-reduction approaches (for example, hazard assessment, building codes and practices, warning systems, rapid response, and insurance).
In this paper, we present augmentation methods appropriate for seismic waveforms and demonstrate their ability to reduce bias and increase performance. These augmentation methods can be applied to a wide range of deep learning applications designed for seismic data. It has been observed that the system can achieve an excellent performance with optimum control gains.
was improved by compensating for communication delay. assess the seismic performance. To improve the seismic performance, a new seismic retrofitting technology is developed using prefabricated RC panels with sufficient steel rebars.
The RC claddings are first replaced by these RC panels, which are securely attached to the existing structure by post-cast concrete. Different Effective Methods of Communication – Most of the times, when the word communication comes to the mind of the people, they think about exchanging ideas and information by means of words but such type of verbal communication is just a small component of communication.
In the 21 st century, businesses have access to a number of methods of communication which can be used. Find my institution. Log in / Register. 0 Cart. Seismic methods are based on determinations of the time interval that elapses between the initiation of a sound wave from detonation of a dynamite charge or other artificial shock and the arrival of the vibration impulses at a series of seismic detectors (geophones).
From: Subsea and Deepwater Oil and Gas Science and Technology, No. 10 Methods of Achieving Improved Seismic Performance of Communications Systems, Tang, Alex, and Schiff, Anshel J., Editors, September No. 11 Guide to Post-Earthquake Investigation of Lifelines, Schiff, Anshel J., Editor, July No.
12 Seismic Guidelines for Ports, Werner, Stuart D., Editor, March Onshore and off, as well as conventional and unconventional environments have seen dramatic changes in seismic data acquisition, processing and interpretation.
These changes are providing improvements in resolution, complex geology imaging, and cost effectiveness in both exploration and production. Onshore, channel count continues to escalate as cableless systems make it is easier to deploy.
The seismic static coefficients are usually obtained from the seismic “zone,” which corresponds to a level of seismic acceleration. Many design software programs can perform static analysis, but these methods are primarily used in building seismic design.
The proposed method aims at improving the seismic performance of the structure by redistributing the slip loads of friction dampers to obtain a more uniform height-wise distribution of energy dissipation capacity. This leads to a design solution with maximum energy dissipation, and therefore minimum structural damage under a design earthquake.
Methods, approaches, and tools relating to the minimisation of seismic vulnerability and energy consumption have been increasingly used and tested in order to ensure both sustainability and safety, with a connection that may improve the performances of both cultural and environmental heritage.
current book discuss the recent trends in performance-based seismic design of structures and provide additional practical guidance on finite element modelling of r/c building structures for code-compliant seismic analysis methods.
It is emphasized that this book is neither a. Considering the outstanding features of the direct insertion method, the rubber bearing isolation [1, 2,3] is introduced in this study to improve its seismic performance.
It is based on the theory. Appropriate seismic risk analyses and mitigation techniques are crucial to manage the impact of earthquakes on both existing and planned infrastructure. Retrofitting of infrastructures to improve seismic resilience while shifting the focus from risk-based to resilience-based approaches will ensure continuous functionality throughout their life.
Underground structures can be vulnerable during strong earthquakes, and seismic mitigation systems designed for these structures are instrumental in improving multiple aspects of seismic performance.
To deal with this problem, a novel isolation system is proposed for underground structures, employing the incorporation of a negative-stiffness. By this method, in which the natural mode functions of the two-mass-system are incorporated into the energy-balance method by Akiyama, seismic responses of the isolation story and of the lower.
The seismic performance of HV transformer bushing systems have been tested and/or analyzed (e.g., Bellorini et al.Ersoy and SaadeghvaziriFiliatrault and MattKoliou et al.
Seismic isolation systems have been used worldwide in bridge structures to reduce vibration and avoid collapse. The seismic isolator, damper, and Shock Transmission Unit (SUT) are generally adopted in the seismic design of bridges to improve their seismic safety with economic efficiency.
There are several seismic isolation systems, such as Natural Rubber Bearing (NRB), Lead Rubber Bearing (LRB. this method with (Kamath et al., ) and show that this is superior in-terms of communication cost and also message overhead.
The rest of the paper is organized as follows. Section 2 presents related work on adaptive mesh and iterative methods for reconstruction. In section 3 we provide background on seismic tomography inversion and present.
OMSHR is interested in exploring a new communication technology that re-uses undersea modem technology and concepts for seismic communication within the mining industry. Under this contract, a prototype system will be developed that demonstrates the capabilities of this technology as well as any associated limitations.
The seismic vulnerability assessment of the area was performed resorting to a simplified seismic vulnerability assessment method, composed of both qualitative and quantitative parameters.
To better manage and analyze the human and economic exposure, the results were integrated into a Geographic Information System (GIS) tool, which allowed to. Downhole fiber systems are often in place for another purpose, making interrogation for seismic data a secondary function.
These are early days for fiber optics, so it may be a decade before it is in common use, but optical seismic technology has proven very effective in permanently installed 4. While tailoring a performance management system's design to address the exact needs and objectives of a company is the first vital step in transforming the performance of a.
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Improved Seismic Monitoring—Improved Decision-Making, describes and assesses the varied economic benefits potentially derived from modernizing and expanding seismic monitoring activities in the United States.
These benefits include more effective loss avoidance regulations and strategies, improved understanding of earthquake processes, better.In FK methods, a single source configuration will give improved offset sampling within the CMP domain, reducing the chance of spatial aliasing and improving the performance of the filter.
In Radon methods, it is important to maintain equal shot and receiver spacing for optimum performance of the algorithm.Seismic imaging technology Seismic imaging is considered key to reduce risk and cost in exploratory as well as development drilling. although we have recently seen important advances, the authors claim that a step change is required to significantly improve the industry’s ability to obtain accurate seismic .