Comparison Analysis of Fiber Bragg Grating and Resistance Strain Gauge Used in Quayside Container Crane Structural Health Monitoring

Li, Xiangzhong; Li, Shi Lin; Zhong, Shao Long; Ge, Shemin

doi:10.4028/www.scientific.net/amm.330.485

Cited by 9 publications

(4 citation statements)

References 1 publication

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“…For the catalysts with different sized cubic palladium NPs, as the particle size increases (9 nm→12 nm→16 nm), isomerization selectivity drops from 69.6 % to 58.2 % and then to 35.3 %, and the ratio of mono‐/multi‐branched isomers also decreases from 5.44 to 4.84 and then to 4.10. According to the bifunctional catalysis mechanism, the n‐ alkanes isomerization first leads to mono‐branched isomers mainly, then to multi‐branched ones which originate from further isomerization of mono‐branched isomers . This result implies that the promoting effect of the particle size of Pd NPs on the further arrangement of mono‐branched isomers to multi‐branches on B acid sites, suggesting the decrease of (de)hydrogenation function of metal sites and the worse balanced bifunctionality between acid sites and metal sites as the particle size increases.…”

Section: Resultsmentioning

confidence: 99%

The Influence of Size and Shape of Pd Nanoparticles on the Performances of Pd/Beta Catalysts for n‐Heptane Hydroisomerization

Chen

Liu²,

Yin

et al. 2019

ChemCatChem

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Several Pd/Beta catalysts with cubic (9 nm, 12 nm, 16 nm) and truncated-octahedral (18 nm) Pd nanoparticles (NPs) were prepared to investigate the effect of size and shape of Pd NPs for n-heptane hydroisomerization. Characterizations confirmed that the cubic Pd NPs solely exposed {100} crystal plane and truncated-octahedral Pd NPs were enclosed by {100} and {111} crystal planes, and that the desorption temperature of subsurface hydrogen on Pd NPs showed size and shape dependence.Hydroisomerization results exhibits that the catalyst with 9 nm cubic Pd NPs displayed the higher isomers selectivity compared to the catalyst with 12 nm cubic NPs, 18 nm truncated octahedral NPs and 16 nm cubic NPs at similar conversion. This result suggested the size and shape dependence of (de) hydrogenation activity of Pd NPs, and further revealed the key role of subsurface hydrogen in determining the (de)hydrogenation activity.interactions between slabs. The 3 × 3 × 1 Monkhorst-Pack k-point grid was used in the two surfaces for the Brillouin zone sampling.

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Section: Resultsmentioning

confidence: 99%

The Influence of Size and Shape of Pd Nanoparticles on the Performances of Pd/Beta Catalysts for n‐Heptane Hydroisomerization

Chen

Liu²,

Yin

et al. 2019

ChemCatChem

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“…Monitoring of structures is mainly carried out by piezoelectric [74][75][76], strain [77,78], and OFS sensors [79][80][81][82]. The OFS are based on interferometric principles (Fabry-Perot and MZI) and optical (Bragg Fibers) or stimulated (Brillouin) dispersion principles [83,84].…”

Section: Ofs For Durability Monitoring Of Concrete and Reinforced Structuresmentioning

confidence: 99%

Sol-Gel Coating Membranes for Optical Fiber Sensors for Concrete Structures Monitoring

et al. 2021

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The use of advanced sensing devices for concrete and reinforced concrete structures (RCS) is considered a rational approach for the assessment of repair options and scheduling of inspection and maintenance strategies. The immediate benefits are cost reduction and a reliable prevention of unpredictable events. The use of optical fiber sensors (OFS) for such purposes has increased considerably in the last few years due to their intrinsic advantages. In most of the OFS, the chemical transducer consists of immobilized chemical reagents placed in the sensing region of the optical sensor by direct deposition or by encapsulation in a polymeric matrix. The choice of the support matrix impacts directly on the performance of the OFS. In the last two decades, the development of OFS functionalized with organic–inorganic hybrid (OIH) sol–gel membranes have been reported. Sol–gel route is considered a simple method that offers several advantages when compared to traditional synthesis processes, allowing to obtain versatile materials with unique chemical and physical properties, and is particularly valuable in the design of OIH materials. This review will provide an update of the current state-of-the-art of the OFS based on OIH sol-gel materials for concrete and RCS since 2016 until mid-2021. The main achievements in the synthesis of OIH membranes for deposition on OFS will be discussed. The challenges and future directions in this field will also be considered, as well as the main limitations of OFS for RCS monitoring.

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“…However, these methods require the use of expensive and large equipment. Recently, some other types of economical and light-based sensors, such as resistive strain gauges [ 8 ], piezoelectric elements [ 9 , 10 ], and optical fiber sensors (OFSs) [ 11 , 12 , 13 , 14 , 15 , 16 , 17 ], have been used for SHM.…”

Section: Introductionmentioning

confidence: 99%

Marine Structural Health Monitoring with Optical Fiber Sensors: A Review

Chen

Wang

Zhang

et al. 2023

Sensors

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Real-time monitoring of large marine structures’ health, including drilling platforms, submarine pipelines, dams, and ship hulls, is greatly needed. Among the various kinds of monitoring methods, optical fiber sensors (OFS) have gained a lot of concerns and showed several distinct advantages, such as small size, high flexibility and durability, anti-electromagnetic interference, and high transmission rate. In this paper, three types of OFS used for marine structural health monitoring (SHM), including point sensing, quasi-distributed sensing, and distributed sensing, are reviewed. Emphases are given to the applicability of each type of the sensors by analyzing the operating principles and characteristics of the OFSs. The merits and demerits of different sensing schemes are discussed, as well as the challenges and future developments in OFSs for the marine SHM field.

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Comparison Analysis of Fiber Bragg Grating and Resistance Strain Gauge Used in Quayside Container Crane Structural Health Monitoring

Cited by 9 publications

References 1 publication

The Influence of Size and Shape of Pd Nanoparticles on the Performances of Pd/Beta Catalysts for n‐Heptane Hydroisomerization

The Influence of Size and Shape of Pd Nanoparticles on the Performances of Pd/Beta Catalysts for n‐Heptane Hydroisomerization

Sol-Gel Coating Membranes for Optical Fiber Sensors for Concrete Structures Monitoring

Marine Structural Health Monitoring with Optical Fiber Sensors: A Review

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