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Huimeng Wang, Yunyan Du, Jiawei Yi, Nan Wang and Fuyuan Liang
Real-word phenomena, such as ocean eddies and clouds, tend to split and merge while they are moving around within a space. Their trajectories usually bear one or more branches and are accordingly defined as complex trajectories in this study. The traject...
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Jungpil Shin, Md. Maniruzzaman, Yuta Uchida, Md. Al Mehedi Hasan, Akiko Megumi, Akiko Suzuki and Akira Yasumura
The classification of different age groups, such as adult and child, based on handwriting is very important due to its various applications in many different fields. In forensics, handwriting classification helps investigators focus on a certain category...
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Zhiheng Wang, Xiaozhao Li, Nikolai Bobylev, Shuchen Li and Jiangfeng Liu
The harmonious development of urban rail transit, underground space engineering, and social economy is the key to regional sustainable development. Based on synergetic theory, this paper constructs the coupling coordination evaluation system of ?rail tra...
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Mengjie Yang, Zhe Chen, Mengjie Zhou, Xiaojin Liang and Ziyue Bai
The coronavirus disease 2019 (COVID-19) pandemic has had tremendous and extensive impacts on the people?s daily activities. In Chicago, the numbers of crime fell considerably. This work aims to investigate the impacts that COVID-19 has had on the spatial...
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Hongsub Jee, Kiseok Jeon, Min-Joon Park and Jaehyeong Lee
Nanoporous structures have attracted great attention in electronics, sensor and storage devices, and photonics because of their large surface area, large volume to surface ratio, and potential for high-sensitivity sensor applications. Normally, electron ...
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Dragos-Florin Chitariu, Florin Negoescu, Mihaita Horodinca, Catalin-Gabriel Dumitras, Gures Dogan and Mehmet Ilhan
This paper proposes a study in theoretical and experimental terms focused on the vibration beating phenomenon produced in particular circumstances: the addition of vibrations generated by two rotating unbalanced shafts placed inside a lathe headstock, wi...
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Halima Ali Al Shezawi, Dr. M. Firdouse Rahman Khan
PurposeThe objectives of the study are to analyze to the opportunities created for the new entrepreneurs through the In-Country Value (ICV) scheme; to analyze the benefits earned by the entrepreneurs through ICV in the selected companies of Oman and to c...
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Giovanni Andrea Casula, Giacomo Muntoni, Paolo Maxia and Giorgio Montisci
A printed log-periodic dipole array (LPDA) for DVB-T2 Digital TV applications, covering the whole DVB-T2 UHF band from Channel 21 to Channel 69 (470 MHz?860 MHz), is presented. The presented antenna offers a compact size and a lower cost compared to both...
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Aníbal Coronel, Fernando Huancas and Stefan Berres
In the present article, we research the existence of the positive periodic solutions for a mathematical model that describes the propagation dynamics of a pathogen living within a vector population over a plant population. We propose a generalized compar...
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Yanfeng Wu, Guangxin Zhang, Hong Shen and Y. Jun Xu
Assessment of the response of streamflow to future climate change in headwater areas is of a particular importance for sustainable water resources management in a large river basin. In this study, we investigated multiscale variation in hydroclimatic var...
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Yanfeng Wu, Guangxin Zhang, Hong Shen and Y. Jun Xu
Assessment of the response of streamflow to future climate change in headwater areas is of a particular importance for sustainable water resources management in a large river basin. In this study, we investigated multiscale variation in hydroclimatic var...
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Hai Du, Hao Jiang, Zhangyi Yang, Haoyang Xia, Shuo Chen and Jifei Wu
The characteristic of delayed airfoil stalls caused by the bio-inspired Wavy Leading-Edges (WLEs) has attracted extensive attention. This paper investigated the effect of WLEs on the aerodynamic performance and flow topologies of the airfoil through wind...
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Tomas Lopez-Olocco, Leo M. González-Gutiérrez, Javier Calderon-Sanchez, Adolfo Marón Loureiro, Leandro Saavedra Ynocente, Ana Bezunartea Barrio and Nicolás Vivar Valdés
Recently, several experimental and numerical studies have underlined the advantages of adding clumped weights at discrete positions of mooring lines. To confirm the influence of these weights, an experimental study was performed for a 1:30 scale model of...
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Tiran Kariyawasam, Vindhya Basnayake, Susantha Wanniarachchi, Ranjan Sarukkalige and Upaka Rathnayake
Groundwater resources are severely threatened not only in terms of their quality but also their quantity. The availability of groundwater in arid regions is highly important as it caters to domestic needs, irrigation, and industrial purposes in those are...
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Mohamed Abdelmoula, Alejandro Montón Zarazaga, Gökhan Küçüktürk, Francis Maury, David Grossin and Marc Ferrato
Direct-Powder Bed Selective Laser Processing (D-PBSLP) is considered a promising technique for the Additive Manufacturing (AM) of Silicon Carbide (SiC). For the successful D-PBSLP of SiC, it is necessary to understand the effects of process parameters. T...
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Jeffrey Knowles and Harry Yeh
The transformation of long waves?such as tsunamis and storm surges?evolving over a continental shelf is investigated. We approach this problem numerically using a pseudo-spectral method for a higher-order Euler formulation. Solitary waves and undular bor...
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Roman Antoshchenkov,?nton Nikiforov,Ivan Galych,Victor Tolstolutskyi,Vitalina Antoshchenkova,Sergey Diundik
Pág. 67 - 73
The modern practice of using vibratory machines involving small seeds of low weight faces such an undesirable phenomenon as the effect exerted on the kinematics of vibrational movement of particles of fractions of the seed mixture by the aerodynamic forc...
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Liat Rozenberg, Sagi Lotan and Dan Feldman
Whether the source is autonomous car, robotic vacuum cleaner, or a quadcopter, signals from sensors tend to have some hidden patterns that repeat themselves. For example, typical GPS traces from a smartphone contain periodic trajectories such as ?home, w...
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Mohammad Abedin and Armin B. Mehrabi
The bottom flanges of steel plate girder bridges can be considered fracture-critical elements depending on the number of girders and bridge configuration. For such cases, it is required that inspection of these bridges be carried out using costly ?arms-l...
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Lin Li, David Z. Zhu and Biao Huang
Rapid filling/emptying of pipes is commonly encountered in water supply and sewer systems, during which pressure transients may cause unexpected large pressure and/or geyser events. In the present study, a linearized analytical model is first developed t...
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