Results 71 to 80 of about 165,446 (306)

Rate control for HEVC intra-coding based on piecewise linear approximations [PDF]

open access: yes, 2018
This paper proposes a rate control (RC) algorithm for intra-coded sequences (I-frames) within the context of block-based predictive transform coding (PTC) that employs piecewise linear approximations of the rate-distortion (RD) curve of each frame ...
Sanchez Silva, Victor
core   +1 more source

Seismic Assessment of Braced RC Frames

open access: yesProcedia Engineering, 2011
AbstractRecent earthquakes in Turkey (1999), Taiwan (1999) and Algeria (2003) demonstrated the catastrophic impact of such power upon urban cities. A great number of existing buildings in Algeria designed without seismic design criteria and detailing rules for dissipative structural behavior suffered damages which were far worse than that for newer ...
Kadid, A, Yahiaoui, D.
openaire   +1 more source

Transducers Across Scales and Frequencies: A System‐Level Framework for Multiphysics Integration and Co‐Design

open access: yesAdvanced Materials Technologies, EarlyView.
Transducers convert physical signals into electrical and optical representations, yet each mechanism is bounded by intrinsic trade‐offs across bandwidth, sensitivity, speed, and energy. This review maps transduction mechanisms across physical scale and frequency, showing how heterogeneous integration and multiphysics co‐design transform isolated ...
Aolei Xu   +8 more
wiley   +1 more source

Seismic Analysis of Low-Rise Self-Centering Prestressed Concrete Frames considering Soil-Structure Interaction

open access: yesShock and Vibration, 2019
In this study, the seismic behavior of low-rise self-centering (SC) prestressed concrete frames considering soil-structure interaction (SSI) is presented.
Liang-Long Song, Tong Guo, Xin Shi
doaj   +1 more source

Experimental assessment and retrofit of full-scale models of existing RC frames [PDF]

open access: yes, 2002
PSD tests on two full-scale models of existing non-seismic resisting RC frame structures are described. The testing program covered several aspects, namely assessment of seismic performance of existing frames without and with infill panels ...
Molina, J., Pinto, A. V., Varum, H.
core   +1 more source

Collision‐Resilient Winged Drones Enabled by Tensegrity Structures

open access: yesAdvanced Robotics Research, EarlyView.
Based on structures of birds such as the woodpeck, this article presents the collision‐resilient aerial robot, SWIFT. SWIFT leverages tensegrity structures in the fuselage and wings which allow it to undergo large deformations in a crash, without sustaining damage. Experiments show that SWIFT can reduce impact forces by 70% over conventional structures.
Omar Aloui   +5 more
wiley   +1 more source

Numerical Simulation on Aftershock Fragility of Low-Ductility RC Frames under Different Mainshock-Induced Damage Conditions

open access: yesBuildings
Aftershocks typically occur multiple times following major earthquakes, potentially inflicting enhanced damage. It is crucial to quantify the impact of aftershocks on the seismic performance of low-ductility reinforced concrete (RC) frames with different
Bomin Qiu, Jianping Han, Jun Li
doaj   +1 more source

Probabilistic seismic demand modeling of local level response parameters of an RC frame [PDF]

open access: yes, 2017
Probabilistic methods to evaluate the seismic vulnerability of reinforced concrete (RC) frames are largely used in the context of performance based design and assessment, often describing the structural response using global engineering demand parameters
Dall'Asta, A, Freddi, F, Padgett, JE
core  

Formation Control of Multi‐Agent System with Local Interaction and Artificial Potential Field

open access: yesAdvanced Robotics Research, EarlyView.
This article proposes a local interaction‐based formation control method for Multi‐Agent system, integrating consensus and leader‐follower strategies with a stress response mechanism—artificial potential field to reduce communication overhead and enable obstacle avoidance. Experimental results on triangular, square, and hexagonal formations confirm its
Luoyin Zhao   +3 more
wiley   +1 more source

Performance-Based Retrofitting of Aging RC Frames Using Innovative Knee-Braced Buckling-Restrained Braces for Enhanced Seismic Resilience [PDF]

open access: yesEPJ Web of Conferences
The performance of reinforced concrete (RC) structures is a critical area of research, given the increasing need for resilient infrastructure in seismically active regions. Deficient RC frames, commonly found in aging buildings, exhibit limited ductility
Al-Sadoon Zaid A.   +2 more
doaj   +1 more source

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