Results 51 to 60 of about 9,542,086 (200)

A deterministic algorithm for experimental design applied to tomographic and microseismic monitoring surveys [PDF]

open access: yes, 2004
Most general experimental design algorithms are either: (i) stochastic and hence give different designs each time they are run with finite computing power, or (ii) deterministic but converge to results that depend on an initial or reference design ...
Andrew Curtis   +8 more
core   +1 more source

Railway Tracks Extraction from High Resolution Unmanned Aerial Vehicle Images Using Improved NL-LinkNet Network

open access: yesDrones
The accurate detection of railway tracks from unmanned aerial vehicle (UAV) images is essential for intelligent railway inspection and the development of electronic railway maps.
Jing Wang   +7 more
doaj   +1 more source

Spatial Variations of Late Quaternary Slip Rates along the Ganzi–Xianshuihe Fault Zone in the Eastern Tibet

open access: yesRemote Sensing
The Ganzi–Xianshuihe Fault Zone is a large-scale sinistral strike-slip fault zone on the eastern Tibet. As the boundary fault zone of the Bayankala Block and the Chuandian Block, it controls the clockwise rotation of the southeastern Tibet.
Kai Sun   +7 more
doaj   +1 more source

Non-Conventional and Sustainable Retrofitting of Fire-Exposed Reinforced Concrete Columns Using Basalt Fiber–Engineered Geopolymer Composites

open access: yesBuildings
The increasing demand for sustainable and resilient construction solutions calls for the integration of innovative, non-conventional materials in structural retrofitting.
Ruba Palanivelu   +3 more
doaj   +1 more source

Advances in research on seismic performance and design methods for pile-supported wharves Part Ⅰ: Earthquake damage and seismic design methods

open access: yesShuili Shuiyun Gongcheng Xuebao, 2016
The main damage reasons resulting in poor seismic performance of the high-pile-supported wharves are clarified by examining extensive documented case histories of the damaged pile-supported wharves.
GAO Shu-fei, GONG Jin-xin, FENG Yun-fen
doaj   +1 more source

A Nonlinear Static Procedure for the Seismic Design of Symmetrical Irregular Bridges

open access: yesShock and Vibration, 2020
Displacement-based seismic design methods support the performance-based seismic design philosophy known to be the most advanced seismic design theory. This paper explores one common type of irregular-continuous bridges and studies the prediction of their
Shanshan Li   +4 more
doaj   +1 more source

Earthen construction: structural vulnerabilities and retrofit solutions for seismic actions [PDF]

open access: yes, 2012
Earthen structures present very appealing characteristics regarding a more sustainable practice with the preservation of our natural resources. However, when subjected to earthquake ground motions, this type of construction may present a deficient ...
Oliveira, C. F., Varum, H., Vargas, J.
core  

Some considerations on performance-based seismic design

open access: yes, 2007
In the last years, a substantial change has been brought in the vision of the design objectives of an engineered facility: from the need to ensure its resistance at a minimum cost in a deterministic context, to the more recent design approaches aimed at ...
CIAMPOLI, Marcello, AUGUSTI, Giuliano
core  

Performance evaluation of Wied Dalam (WDD) seismic station in Malta [PDF]

open access: yes, 2014
The continual operation of a permanent seismograph, now exceeding a couple of decades in some cases, naturally involves changes of hardware and software over time.
Panzera, Francesco   +3 more
core   +1 more source

Effect of C-FRP (Carbon Fiber Reinforced Polymer) Rope and Sheet Strengthening on the Shear Behavior of RC Beam-Column Joints

open access: yesFibers
This study presents a high-performance external strengthening strategy for reinforced concrete (RC) beam–column joints, integrating near-surface mounted (NSM) Carbon Fiber Reinforced Polymer (C-FRP) ropes with externally bonded C-FRP sheets. The X-shaped
Emmanouil Golias, Chris Karayannis
doaj   +1 more source

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