Zobrazeno 1 - 10
of 85
pro vyhledávání: '"Qunfeng Liu"'
Publikováno v:
Frontiers in Materials, Vol 9 (2022)
The enhancement of the thermal conductivity can be utilized to reduce the temperature difference between the internal and external structural surfaces and thus the thermal induced stresses in concrete. This study investigated the compressive strength
Externí odkaz:
https://doaj.org/article/76efee4727f647f7b4d1550939918c30
Publikováno v:
Applied Sciences, Vol 13, Iss 8, p 5082 (2023)
Torsional stiffnesses of chords contribute considerably to the sectional torsional stiffness of steel tubular Vierendeel truss arches and hence determine their out-of-plane buckling. To obtain a more accurate stability design for the Vierendeel truss
Externí odkaz:
https://doaj.org/article/d5eebc220a924f1a9976e710df2b4da3
Publikováno v:
Sensors, Vol 23, Iss 7, p 3627 (2023)
This work proposed a novel approach based on principal component analyses (PCAs) to monitor the very early-age hydration of self-compacting concrete (SCC) with varying replacement ratios of fly ash (FA) to cement at 0%, 15%, 30%, 45%, and 60%, respec
Externí odkaz:
https://doaj.org/article/7e0839e2711d4a7f8b56426da555587b
Publikováno v:
Buildings, Vol 13, Iss 2, p 560 (2023)
Sensing performance is crucial for real-world applications of the embedded piezoelectric lead zirconate titanate (PZT) sensors in concrete structures. Based on the electromechanical impedances (EMIs) obtained numerically and experimentally from the e
Externí odkaz:
https://doaj.org/article/85939bc4a76f47e980a5deec061638fc
Publikováno v:
Symmetry, Vol 14, Iss 11, p 2371 (2022)
Concrete-filled steel tubular Y-shaped (CFST-Y) piers are good candidates for meeting the structural and aesthetic requirements of bridges. By using the theoretical and nonlinear static (pushover) analyses, the seismic performances of three types of
Externí odkaz:
https://doaj.org/article/b65c5f8e41254137807e11f5b4289642
Publikováno v:
IEEE Access, Vol 7, Pp 79657-79670 (2019)
MATLAB® has built in five derivative-free optimizers (DFOs), including two direct search algorithms (simplex search, pattern search) and three heuristic algorithms (simulated annealing, particle swarm optimization, and genetic algorithm), plus a few
Externí odkaz:
https://doaj.org/article/f898a6e2c35c42439b8132b61cc07eb2
Publikováno v:
Polymers, Vol 14, Iss 17, p 3445 (2022)
The usage of carbon fiber–reinforced polymer (CFRP) to strengthen cracked steel structures can effectively improve its bear capacity, so it has been extensively used in recent years. The degradation of interfacial bonding is one of the most importa
Externí odkaz:
https://doaj.org/article/4380ad2c4169499787ed02034a2fc9bb
Publikováno v:
Symmetry, Vol 14, Iss 7, p 1373 (2022)
This study proposes a class of hybrid isolation systems constructed by combining Buckling Restrained Braces (BRBs) with Rubber Bearings (RBs) or Lead Rubber Bearings (LRBs) for mitigating the seismic responses in bearing-supported bridges under stron
Externí odkaz:
https://doaj.org/article/f2a94e120ee64c9da986216755edac69
Publikováno v:
IEEE Access, Vol 6, Pp 75997-76006 (2018)
Through modeling human's brainstorming process, the brain storm optimization (BSO) algorithm has become a promising population-based evolutionary algorithm. However, BSO is pointed out that it possesses a degenerated L-curve phenomenon, i.e., it ofte
Externí odkaz:
https://doaj.org/article/aa746f6ea1c24010a2c0b34d4161bac6
Publikováno v:
Information, Vol 10, Iss 6, p 190 (2019)
Image retrieval or content-based image retrieval (CBIR) can be transformed into the calculation of the distance between image feature vectors. The closer the vectors are, the higher the image similarity will be. In the image retrieval system for larg
Externí odkaz:
https://doaj.org/article/39e529907ce449628c89e3519267d82c