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Slavica Stevanovic, Jelena Minovic, Isidora Ljumovic
Research Question: This paper examines the impact of liquidity on the profitability of the Serbian polluting medium sized enterprises. Motivation: We study the impact of traditional liquidity indicators and indicators based on cash flow on the profitabil...
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Ziqi Liu, Shogo Okamoto, Tomohito Kuroda and Yasuhiro Akiyama
Gait stability indices are crucial for identifying individuals at risk of falling while walking. The margin of stability is one such index, known for its good construct validity. Generally, the measurement of this stability index requires a motion captur...
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Cathy Harro, Gordon Alderink, Lauren Hickox, David W. Zeitler, Michele Avery, Courtney Daman and Dori Laker
The key findings of this project suggest biomechanical metrics that may be useful in screening individuals with Parkinson?s disease for loss of dynamic balance while walking.
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Weiqiang Liao, Xin Dong, Rongfeng Yang and Zhongfei Qiao
In response to the constant power negative impedance characteristics on the load side of a ship DC microgrid, leading to voltage oscillation issues in the DC bus, this paper proposes a control optimization method based on impedance reshaping using bus vo...
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Lucilene Silva, Tomas Grönstedt, Carlos Xisto, Luiz Whitacker, Cleverson Bringhenti and Marcus Lejon
The ratio between blade height and chord, named the aspect ratio (AR), plays an important role in compressor aerodynamic design. Once selected, it influences stage performance, blade losses and the stage stability margin. The choice of the design AR invo...
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Riccardo Cadamuro, Maria Teresa Cazzola, Nicolò Lontani and Carlo E. D. Riboldi
Sounding rockets constitute a class of rocket with a generally simple layout, being composed of a cylindrical center-body, a nosecone, a number of fins placed symmetrically around the longitudinal axis (usually three or four), and possibly a boat-tail. T...
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Shuang Ruan, Ming Zhang, Shaofei Yang, Xiaohang Hu and Hong Nie
A dynamic model is established to investigate the shimmy instability of a landing gear system, considering the influence of nonlinear damping. The stability criterion is utilized to determine the critical speed at which the landing gear system becomes un...
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Piotr Ratajczak, Dawid Szutowski and Jaroslaw Nowicki
The aim of this study is to verify the stability of the profitability?liquidity relationship over time, as well as to determine this relationship in terms of its level and structure. In this context, three main research questions were formulated. First, ...
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Li Li, Lei Qiao, Jiakuan Xu and Junqiang Bai
Currently, the aviation industry is facing an oil and energy crisis and is contributing much more greenhouse gas emissions to the environment. Aircraft design approaches, such as aerodynamic shape optimization, new configuration concepts, and active cont...
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Ahmet Çagri Arican, Engin Hasan Çopur, Gokhan Inalhan and Metin Uymaz Salamci
This paper provides a new method to nonlinear control theory, which is developed from the eigenvalue assignment method. The main purpose of this method is to locate the pointwise eigenvalues of the linear-like structure built by freezing the nonlinear sy...
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