8,692 research outputs found
Kinematic Model for Coseismic Mud Diapirism with the 2016 Mw 6.4 MeiNong Earthquake in Taiwan
No full textThis is a package prepared for a journal paper submission.
Copyright 2020, Geng-Pei Lin ([email protected])
Title:
Kinematic Model for Coseismic Mud Diapirism with the 2016 Mw 6.4 MeiNong Earthquake in Taiwan
Authors:
Geng-Pei Lin, Wu-Lung Chang1 and Chi-Yu Chiu
Corresponding author: Geng-Pei Lin ([email protected])
Files:
Currently this package contains a .inp file and two .mat files for GBIS (Bagnardi & Hooper, 2018). Which is used in our work
Extrapleural Nuss procedure for chest wall deformity complicating thoracotomy and pulmonary resectio
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Applying the Coulomb Failure Function with an optimally oriented plane to the 2008 Mw 7.9 Wenchuan earthquake triggering
Full text linkThe Coulomb failure function (CFF) quantitatively describes static stress changes in secondary faults near the source fault of an earthquake. CFF can be employed to monitor how static stress transfers and then shed some light on the probability of successive events occurring around a source fault. In this paper we focus on the CFF and particularly on optimally oriented planes. We present a unified model to determine an optimally oriented plane and its corresponding Coulomb stress, then apply the model to the 2003 Mw 6.6 Bam (Iran) earthquake and the 2008 Mw 7.9 Wenchuan (China) earthquake, thereby checking its effectiveness. Our results show that spatial correlation between positive Coulomb stress changes and aftershocks are, for the 2003 Bam earthquake, 47.06% when elastic Coulomb stress changes are resolved on uniform planes and 87.53% when these are resolved on optimally oriented planes at depth; for the 2008 Wenchuan earthquake the correlations are 45.68% and 58.20%, respectively. It is recommended that account be taken of optimally oriented planes when drawing a Coulomb stress map for analyzing earthquake triggering effects
3.15 dB NF, 7.2 mW 3-9 GHz CMOS ultra-wideband receiver front-end
No full text[[abstract]]A 3-9 GHz receiver front-end (RFE) with excellent stop-band rejection by 0.18 mu m CMOS technology is demonstrated. A pre-filter is used to achieve high stop-band rejection and good RF-port input matching. An output buffer with a lowpass filter is used to enhance the conversion gain and to suppress the high-frequency noise and leakage. In the low-noise mode, the RFE consumes 7.2 mW and achieves conversion gain (CG) of 20.21 +/- 1.97 dB, a minimum noise figure (NF) of 3.15 dB, and input 1 dB compression point (P1dB) of - 16.3 dBm. It is believed that this is the lowest NF ever reported for a CMOS UWB RFE with power consumption lower than 10 mW. In the high-gain mode, the RFE consumes 19.35 mW and achieves a high and flat CG of 32.63 +/- 1.55 dB.[[note]]SC
Thymectomy for non-thymomatous myasthenia gravis: a comparison of surgical methods and analysis of prognostic factors.
No full textComparative feasibility study of a 30 MW disruptive floater solution with a 15 MW PivotBuoy and a benchmark 15 MW semi-submersible floater in the Bay of Biscay
No full textThis paper investigates the technical, life cycle, and economic feasibility of a 30 MW upscaled downwind turbine, comparing it to a 15 MW X1 Wind PivotBuoy downwind turbine and a benchmark 15 MW IEA Umaine VolturnUS-S upwind turbine in the 450 MW Sud de la Bretagne I wind farm site. The study is significant due to the rising energy demand, the potential for decreasing the levelized cost of energy with increased turbine size, and the optimized use of space. The size limit of current upwind turbine designs could be addressed using a downwind turbine solution.The research is conducted by modelling the global dynamic response of the structure using OpenFAST and computing the natural frequencies and stresses using a finite element model. A lifecycle analysis is performed to identify potential pitfalls and bottlenecks by analysing the individual lifecycle phases. The economic feasibility is assessed by simulating the annual energy production using TOPFARM and utilizing structural analysis and lifecycle assessment to quantify capital, operational, and abandonment expenditures. Based on the annual energy production and the performance indicators the levelized cost of energy is calculated.The findings indicate that while the global stability is within boundaries, the stress in members is too high with a simple scale-up of the proposed design. Bottlenecks are found in lifting operations and supply chain readiness. The levelized cost of energy and capital expenditure increased due to substructure self-weight, rendering the proposed 30 MW scale-up currently unfeasible when compared to the other two wind farms.These findings are important as they demonstrate that the 15 MW X1 Wind PivotBuoy is not scalable without design changes. The levelized cost of energy does not decrease with an increased floater solution. The 15 MW X1 Wind PivotBuoy downwind turbine seems more economically viable, making it a more interesting option for future development.Civil Engineerin
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