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Archive of Advanced Engineering Science — Volume 53 (2021), Issue 3

Gongcheng Kexue Yu Jishu/Advanced Engineering Science
Journal ID : AES-16-10-2021-63
Title : Adaptive Beamforming Algorithm for Ultrasonic Array with the Combination of Spatial Sampling and Coherence Factor
SONG Shoupeng, , LI Qi,
Abstract : In order to solve the problem of low computational efficiency of adaptive beamforming algorithms in ultrasonic imaging, an adaptive beamforming algorithm for ultrasonic array with the combination of spatial sampling and coherence factor was proposed. The maximum decimation factor with different numbers of array elements was deduced according to the beam pattern. The sparse echo data was obtained by spatially sampling the whole array element data using the maximum decimation factor. Therefore, th
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Gongcheng Kexue Yu Jishu/Advanced Engineering Science
Journal ID : AES-16-10-2021-61
Title : Peak Shear Strength Model for Clay-concrete Interface Considering Roughness
CHENG Hao, , ZENG Guodong, , ZHOU Min, , WANG Xuan, , ZHANG Jiasheng, , WANG Jia,
Abstract : Surface roughness of structures is a primary factor that affects the mechanical properties of soil-structure interface. To further study the effect of roughness on shear strength of interface, large-scale direct shear tests were performed on clay-concrete interface under different roughness conditions and the influence mechanism of roughness on peak shear strength of interface was revealed. The results showed that the shear stress-displacement curves of clay-concrete interface exhibited strain-s
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Gongcheng Kexue Yu Jishu/Advanced Engineering Science
Journal ID : AES-16-10-2021-62
Title : Research on Neural Network Generalization of Cable Force Vibration Measurement
GAI Tongtong, , ZENG Sen, , YU Dehu, , YANG Shujuan, , SUN Baodi,
Abstract : The stress state of the cable is related to the safety of the cable system bridge, and the cable force value is an important index to measure the mechanical states of the cable. At present, the difficulty of determining the cable boundary conditions is an important factor affecting the accuracy of the cable force identification results. The ANSYS was used to numerically simulate the cable vibration, and the reliability of the modeling method was verified by the existing cable force calculation f
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Gongcheng Kexue Yu Jishu/Advanced Engineering Science
Journal ID : AES-16-10-2021-60
Title : Study on the Preparation and Denitration Performance of Ce Modified La-Mn Perovskite Catalyst
GUO Jiaxiu, , SHI Xueke, , FAN Aidong, , LI Jianjun, , CHU Yinghao, , YUAN Shandong,
Abstract : In order to improve the denitration performance of La-Mn perovskite catalyst, a series of Ce modified perovskite La-Mn composite oxide catalysts were synthesized by citric acid sol-gel method. The structure, morphology, composition and surface physicochemical properties of the catalysts were characterized by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), N2 adsorption-desorption (BET) and temperature programmed technology (H2-TPR/NH3-TPD).The
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