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Xiaoshuang Han, Weiliang Qiao and Bo Zhou
This article presents a procedure that simplifies an offshore jacket platform as a non-uniform cantilever beam subjected to an axial force. A Ritz method combined with a pseudo-excitation method is then used to analyze the responses of the jacket platfor...
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M. Domaneschi, R. Cucuzza, L. Sardone, S. Londoño Lopez, M. Movahedi and G. C. Marano
Random vibration analysis is a mathematical tool that offers great advantages in predicting the mechanical response of structural systems subjected to external dynamic loads whose nature is intrinsically stochastic, as in cases of sea waves, wind pressur...
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Alexander Robitzsch
Missing item responses are frequently found in educational large-scale assessment studies. In this article, the Mislevy-Wu item response model is applied for handling nonignorable missing item responses. This model allows that the missingness of an item ...
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Okan Bulut, Guher Gorgun, Tarid Wongvorachan and Bin Tan
Rapid guessing is an aberrant response behavior that commonly occurs in low-stakes assessments with little to no formal consequences for students. Recently, the availability of response time (RT) information in computer-based assessments has motivated re...
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Quanyin Zhang, Jianhu Zhao, Shaobo Li and Hongmei Zhang
Conventional sediment classification methods based on Multibeam Echo System (MBES) data have low accuracy since the correlation between features and sediment has not been fully considered. Moreover, their poor resistance to the residual error of MBES bac...
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Naying Wei, Zhen Zhang, Xu Xu and Wenjuan Yao
To verify that inclined tension legs can improve the stability of the tension leg platform, this paper established the dynamic equation of a tension leg platform (TLP) under marine environmental loads by using the modified Morrison equation considering t...
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Jaimon Dennis Quadros, Sher Afghan Khan, Abdul Aabid, Mohammad Shohag Alam and Muneer Baig
Base pressure becomes a decisive factor in governing the base drag of aerodynamic vehicles. While several experimental and numerical methods have already been used for base pressure analysis in suddenly expanded flows, their implementation is quite time ...
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Chi Young Ahn, Taeyoung Ha and Won-Kwang Park
In this paper, we take into account a two-dimensional inverse scattering problem for localizing small electromagnetic anomalies when they are surrounded by small, randomly distributed electromagnetic scatterers. Generally, subspace migration is considere...
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Zhiqiang Han, Gang Xie, Yongjun Zhou, Yajuan Zhuo, Yelu Wang and Lin Shen
To overcome the limitations of using time interval division to calculate the bridge impact coefficient (IM), a sieving method has been proposed. This method employs multiple sieves on bridge time?history curve samples to ultimately obtain the bridge impa...
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Jing-Kun Dong and Mao Ye
Overall, this paper provides a comprehensive approach for designing structures subject to rhythmic crowd loading. By considering the randomness of the load model and structural response, the design method provides a more realistic evaluation of the struc...
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Kaige Chi, Bo Pang, Lizhuang Cui, Dingzhi Peng, Zhongfan Zhu, Gang Zhao and Shulan Shi
Vegetation coverage variation may influence watershed water balance and water resource availability. Yarlung Zangbo River, the longest river on the Tibetan Plateau, has high spatial heterogeneity in vegetation coverage and is the main freshwater resource...
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Elie Ayache
Pág. Finance an - 16
Timothy Johnson?s working hypothesis in his review of my latest book, The Medium of Contingency, is that I (as well as the ?quants? involved in the derivative pricing industry) do not understand the foundations of abstract probability theory. In this res...
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Qing Zhang, Yuhu Yang
Pág. 153 - 160
The randomness of a high-speed elevator car system?s parameters was caused by manufacturing and installation error. In order to more accurately evaluate the dynamic behavior of the elevator car, the compound vibration problems containing both random exci...
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Kun Wang, Qi Zhang and Jiafu Liu
In this work, vibration prediction of space large-scale membranes from the energy point of view is investigated. Based on the Green kernel of vibrating membranes, a new analytical representation of energy response of infinite membranes is derived. Averag...
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Phuong Hoa Hoang, Hoang Nam Phan, Duy Thao Nguyen and Fabrizio Paolacci
Uncertainty quantification is an important issue in the seismic fragility analysis of bridge type structures. However, the influence of different sources of uncertainty on the seismic fragility of the system is commonly overlooked due to the costly re-ev...
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Chao Ji, James D. Englehardt and Cynthia Juyne Beegle-Krause
Locating and tracking submerged oil in the mid depths of the ocean is challenging during an oil spill response, due to the deep, wide-spread and long-lasting distributions of submerged oil. Due to the limited area that a ship or AUV can visit, efficient ...
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Yang Xinwen, Gu Shaojie, Zhou Shunhua, Shu Yao, Ma Xiaoyun
Pág. 291 - 300
A high speed train-track-subgrade vertical coupled dynamic model is developed in frequency domain. In this model, coupling effects between vehicle and track and between track and subgrade are considered. Full vehicle is represented by a rigid body model ...
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Shuyan Liu, Xuegeng Chen, Dongyan Huang, Jingli Wang, Xinming Jiang, Xianzhang Meng and Xiaomei Gao
Soil classification stands as a pivotal aspect in the domain of agricultural practices and environmental research, wielding substantial influence over decisions related to real-time soil management and precision agriculture. Nevertheless, traditional met...
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Kun Zhang, Jianyao Yao, Wenxiang Zhu, Zhifu Cao, Teng Li and Jianqiang Xin
The thermal protection system (TPS) represents one of the most critical subsystems for vehicle re-entry. However, due to uncertainties in thermal loads, material properties, and manufacturing deviations, the thermal response of the TPS exhibits significa...
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Qingyu Zhu, Qingkai Han, Jinguo Liu and Changshuai Yu
In this paper, a finite element model updating (FEMU) method is proposed based on the response surface model (RSM) and genetic algorithm (GA) to establish a high-precision finite element (FE) model of space station scientific experiment racks. First, the...
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