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King-Cheng Tsai, Wei-Kuo Tseng, Chun-Lung Chen and Yi-Jia Sun
Traditional celestial navigation adopts the intercept method or Sumner line method in order to solve the fix problems of celestial sight reduction. While an estimated position is often needed in order to complete celestial positioning, these methods are ...
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Suchun Yang, Junwei Liu, Ankit Garg and Mingyi Zhang
When the open-ended pile penetrates the soil layer, the resistance generated by the soil plug cannot be ignored. A pile with a full-size pressure sensor installed at pile tip can detect resistance more accurately than a microsensor when the pile penetrat...
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Jabbar Hussein Mohmmed, Mauwafak Ali Tawfik, Qasim Abbas Atiyah
Pág. 41 - 55
This study proposes an analytical solution of natural frequencies for an inclined fixed supported Euler-Bernoulli pipe containing the flowing fluid subjected to thermal loads. The integral transform technique is employed to obtain the spatial displacemen...
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Yonghee Park, Woosung Kim and Hyungpil Moon
In this paper, we present an efficient global and local replanning method for a quadrotor to complete a flight mission in a cluttered and unmapped environment. A minimum-snap global path planner generates a global trajectory that comprises some waypoints...
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Zixin Feng, Teligeng Yun, Yu Zhou, Ruirui Zheng and Jianjun He
Geometric mean metric learning (GMML) algorithm is a novel metric learning approach proposed recently. It has many advantages such as unconstrained convex objective function, closed form solution, faster computational speed, and interpretability over oth...
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Yi Li, Wentao Xie, Hongwei Wang, Bin Peng, Feng Xiong and Chun Zhu
For the dewatering of deep excavation, the existing man-made waterproof curtain has a significant influence on flow response in confined aquifers; the effect of the waterproof curtain must be considered when using the field data for hydrogeological param...
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Ben Minnaert and NobStevens
Wireless power transfer from one transmitter to multiple receivers through inductive coupling is slowly entering the market. However, for certain applications, capacitive wireless power transfer (CWPT) using electric coupling might be preferable. In this...
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Elias Gravanis, Evangelos Akylas and Ernestos Nikolas Sarris
We construct approximate analytical solutions of the Boussinesq equation for horizontal unconfined aquifers in the buildup phase under constant recharge and zero-inflow conditions. We employ a variety of methods, which include wave solutions, self-simila...
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Han Li, Shengze Tian and Xinzhi Dang
Unbonded steel-mesh-reinforced rubber bearings (USRBs) have been proposed as an alternative isolation bearing for small-to-medium-span highway bridges. It replaces the steel plate reinforcement of common unbonded laminated rubber bearings (ULNR) with spe...
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Yuri S. Karinski, David Z. Yankelevsky and Vladimir R. Feldgun
Cracking is an inherent characteristic of a reinforced-concrete (RC) element subjected to tension or bending. The crack width growth with loading depends on the rebar-concrete bond behavior. RC bridges are designed under strict requirements to ensure the...
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Bin Li, Pan Tang, Haotian Xu and Duo Zheng
The problem of the terminal impact angle control guidance law, considering the target observability for passive guidance with bearing-only measurement, is investigated in this paper. Modified line-of-sight (LOS) angle error dynamics and their closed-loop...
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Yaofei Han, Shaofeng Chen, Caixia Gao, Mengzhen Gao, Jikai Si and Yihua Hu
The direct drive permanent magnet motor (DDPMM) is a promising candidate for applications because of its high efficiency, high power density, and low maintenance costs. This study focused on the effect of slot opening width on the air-gap magnetic field ...
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Marcelo Nóbrega da Costa,Joe Akira Yoshino
Pág. pp. 23 - 46
Despite the relatively recent advance in the derivative industry, the European FX option market uses simple models such as Black (1976) or Garman and Kohlhagen (1983). This widespread practice hides very important quantitative effects that could be bette...
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Yuri Kuzmin and Stanislav Proshkin
Based on a rigorous solution to the problem, analytical expressions are obtained for calculating the diffraction of the electromagnetic field of a grounded cable on an elongated dielectric spheroid in a conductive layer. The field of a grounded AC cable ...
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Mubbashar Nazeer, Waqas Ali and Farooq Hussain
Problem statement: The study offers theoretical formulations for high-viscosity particulate flows in inclined reservoirs, taking into account the presence of homogeneous spheroidal particles of various types to produce discrete two-phase suspensions. Pur...
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Shilei Zhao, Wanchun Chen and Liang Yang
This paper aims to develop an optimal guidance law for exo-atmospheric interception, in which impact-angle constraint and acceleration limit are considered. Firstly, an optimal control problem with constraints on terminal miss and impact-angle is formula...
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Andrea D?Ambrosio, Andrea Carbone, Dario Spiller and Fabio Curti
The problem of real-time optimal guidance is extremely important for successful autonomous missions. In this paper, the last phases of autonomous lunar landing trajectories are addressed. The proposed guidance is based on the Particle Swarm Optimization,...
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Xinyao Li and Liangli He
The geotechnical centrifuge applied in various geotechnical engineering fields provides physical data for investigating mechanisms of deformation and failure and for validating analytical and numerical methods by simulating and studying the geotechnical ...
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Akwasi F. Mensah and Leonardo Dueñas-Osorio
This paper proposes a closed-form method to evaluate wind turbine system reliability and associated failure consequences. Monte Carlo simulation, a widely used approach for system reliability assessment, usually requires large numbers of computational ex...
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