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Adaptive sampling for corrugated plate digitization using a laser displacement sensor

Science China(Technological Sciences) 2024年第5期67卷 1510-1523页

作者： WU ChengXing QI Qi CHEN BaiJin YANG JiXiang DING Han State Key Laboratory of Intelligent Manufacturing Equipment and Technology School of Mechanical Science and EngineeringHuazhong University of Science and TechnologyWuhan430074China State Key Laboratory of Intelligent Manufacturing Equipment and Technology School of Materials Science and EngineeringHuazhong University of Science and TechnologyWuhan430074China

The surface quality of a corrugated plate directly determines the heat transfer property of the thermal power mechanical *** detection methods are impractical for real-world production,being slow and *** contrast,the point laser displacement sensor,employing the optical triangle method,emerges as a promising device for assessing parts with variable curvature and highly reflective *** its benefits,high-density sampling by an innate frequency introduces challenges such as data redundancy and a poor signal-to-noise ratio,potentially affecting the efficiency and precision of subsequent data *** address these challenges,adjustable frequency data sampling has been developed for this sensor,allowing adaptive sampling for corrugated plate *** process begins with surface digitization to extract discrete points,which are transformed into intersection curves using the B-spline fitting ***,dominant points are identified,considering multigeometric constraints for curvature and arch ***,the sampling signal is adjusted based on the distribution information of dominant *** results indicate that the proposed method effectively minimizes redundant sampling without compromising the accurate capture of essential geometric features.

关键词： corrugated plate laser displacement sensor adaptive sampling dominant point curvature arch height

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PVDF-assisted pyrolysis strategy for corrugated plate oxygen electrocatalysis nanoreactor:Simultaneously realizing efficient active sites and rapid mass transfer

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Journal of Energy Chemistry 2024年第10期97卷 612-621页

作者： Chenxi Xu Liang Chen Haihui Zhou Shifeng Qin Zhaohui Hou Yangyang Chen Jiale Sun Junwei Xu Zhongyuan Huang College of Chemistry and Chemical Engineering Hunan University College of Materials Science and Technology Central South University of Forestry and Technology Key Laboratory of Hunan Province for Advanced Carbon-based Functional Materials School of Chemistry and Chemical Engineering Hunan Institute of Science and Technology

Though Zn-air batteries(ZABs) are one of the most promising system for energy storage and conversion,challenge still persists in its commercial application due to the sluggish kinetics of oxygen reduction/evolution reaction(ORR/OER).Hereby,a polyvinylidene fluoride(PVDF)-assisted pyrolysis strategy is proposed to develop a novel corrugated plate-like bifunctional electrocatalyst using two-dimensional zeolitic imidazolate frameworks(2D ZIF-67) as the *** employed PVDF plays an important role in inheriting the original 2D structure of ZIF-67 and modulating the composition of the final *** a result,a corrugated plate-like electrocatalyst,high-density Co nanoparticles decorated 2D Co,N,and F tri-doped carbon nanosheets,can be *** acquired electrocatalyst enables efficient active sites and rapid mass transfer simultaneously,thus showing appreciable electrocatalytic performance for rechargeable Zn-air ***,our proposed strategy offers a new perspective to the design of advanced oxygen electrocatalysts.

关键词： Active sites corrugated plate Mass transfer Oxygen electrocatalyst Zn-air batteries

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BEHAVIOUR OF STEEL-SOIL BRIDGE MADE OF corrugated plateS UNDER DYNAMIC TESTS

BEHAVIOUR OF STEEL-SOIL BRIDGE MADE OF CORRUGATED PLATES UND...

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The International Symposium on Innovation & Sustainability of Structures in Civil Engineering

作者： D. Beben Z. Manko Scientific-Research Center for the Development of Bridge Industry MOSTAR Knignicka no. 5 54-311 Wroclaw Poland Bridge Division Civil Engineering Institute Wroclaw University of TechnologyWybrzeze Wyspianskiego no. 2750-370 WroclawPoland

＜正＞The paper presents the results and conclusions of dynamic load tests that were conducted on a road bridge over river Giman in Sweden made from Super Cor corrugated steel plates. Conclusions drawn from the tests can be mostly helpful in the assessment of behaviour of this type of corrugated plate bridge with backfill. In consideration of application of this type of structure in the case of small-to-medium more and more frequent span of bridges, the conclusions from the research will be generalized to all types of such solutions.

关键词： Dynamic load test corrugated plate road bridge dynamic coefficient frequency vibration.

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