http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Xiaobin Hu,Chen Lu,Xiaoqing Zhu,Xiangdong Xie 대한토목학회 2020 KSCE JOURNAL OF CIVIL ENGINEERING Vol.24 No.12
The framed self-centering wall (FSCW) structure is a newly-emerged special type of seismic-resistant system. However, the related studies rarely concern the theoretical investigation of the FSCW structures subjected to lateral loading, which is of great importance for seismic design of the FSCW structures. In view of this, the analytical model of the FSCW structures is firstly developed, then the fundamental equations that govern the elastic responses of FSCW structures under lateral loads are formulated and the corresponding analytical solutions are derived. Meanwhile, the developed analytical model is validated by the finite element method, which shows that the developed model has a good reliability in predicting the elastic responses of FSCW structures sustaining lateral loading. Utilizing the proposed method, the effects of the post-tensioned (PT) tendon and dampers on the behaviors of the FSCW structure under lateral loading are investigated. Moreover, a comparative study of mechanical performance between the FSCW structure and conventional structures under lateral loading is conducted. The results show that, in terms of the lateral displacement and shear force responses of the frame, the mechanical performance of the FSCW structure subjected to lateral loading generally falls in between those of the conventional frame-shear wall structure and the moment-resisting frame structure.
Study on the flooding characteristics of damaged barges with dynamic explosive deformation
Hu Hongtao,Li Xiaobin,Wang Caineng,Rheem Chang-Kyu,Chen Wei 대한조선학회 2024 International Journal of Naval Architecture and Oc Vol.15 No.-
To study the flooding characteristics of damaged compartments and floating states of the hull under deformation of the bulkhead caused by explosion, the damage effects on a single compartment and multiple compartments under dynamic explosion are illustrated. Then, the flooding characteristics are analyzed for single compartment models with two types of damage modes and one multi-compartment asymmetric damage model. The results indicate that the deflection of the bulkhead increases the capacity of the compartment, resulting in variations in the flooding process of damaged compartments. Compared with the single models without deflection deformation, the final flooding quantity of the two types of models with deflection deformation increased by 62.49% and 65.48%. The difference in flooding characteristics led to deviation in the six-degree-of-freedom motion of the two types of hull models. Significantly, the amplitude of heave in the models with deflection deformation under the two types of asymmetric damage modes increased by 60% and 66% compared to that of the models without deflection deformation, and the pitch increased by 66% and 50%. Nevertheless, in the multi-compartment models, there were no distinct differences in the flooding process and six-degree-of-freedom motion. These results can support the rapid assessment of the unsinkability of ships in explosive environments.
Sequence Analysis of cytb Gene in Echinococcus granulosus from Western China
Xiuqin Zhong,Ning Wang,Dandan Hu,Jiahai Wang,Tianyu Liu,Xiaobin Gu,Shuxian Wang,Xuerong Peng,Guangyou Yang 대한기생충학열대의학회 2014 The Korean Journal of Parasitology Vol.52 No.2
Echinococcus granulosus is the causative agent of cystic echinococcosis with medical and veterinary importance in China. Our main objective was to discuss the genotypes and genetic diversity of E. granulosus present in domestic animals and humans in western China. A total of 45 hydatid cyst samples were collected from sheep, humans, and a yak and subjected to an analysis of the sequences of mitochondrial cytochrome b (cytb) gene. The amplified PCR product for all samples was a 1,068 bp band. The phylogenetic analysis showed that all 45 samples were identified as E. granulosus (genotype G1). Ten haplotypes were detected among the samples, with the main haplotype being H1. The haplotype diversity was 0.626, while the nucleotide diversity was 0.001. These results suggested that genetic diversity was low among our samples collected from the west of China based on cytb gene analysis. These findings may provide more information on molecular characteristics of E. granulosus from this Chinese region.
Xie Xiangdong,Zhang Jinfeng,Wang Zijing,Hu Xiaobin 대한전기학회 2022 Journal of Electrical Engineering & Technology Vol.17 No.1
In order to quantitatively evaluate the contribution from each optimization factor of cantilevered harvesters in the improvement of their energy harvesting performance, sets of test specimens are designed and customized. The eff ect of taper ratio, substrate thickness, proof mass, excitation frequency, load resistance and the number of bonded piezoelectric patches on the output electric parameters from the harvesters are tested and evaluated. The experimental results show that the improvements of the output voltage/voltage density, the output power/power density from the harvesters depend on the factors in the contribution turn from big to small as: the increase of the proof mass value, the decrease of the substrate thickness, and the increase of the taper ratio. For a cantilevered harvester ( l 2 = 50.5 mm, b = 15 mm, h 2 = 1 mm, λ = 4/5), its output power and power density can improve 5092.6% by adding a proof mass of 4.31 g. This research obtains some important and instructive conclusions for the practical design of the cantilevered harvester with ideal energy harvesting effi ciency and cost-eff ectiveness.