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Uk-Jae Lee, Dong-Hui Ko and Hong-Yeon Cho
In this study, a smoothing method was applied to improve the accuracy of peak wave period estimation using water surface elevation data collected from two oceanographic and meteorological observation towers situated on the western coast of the Korean Pen...
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Shunyi Liao, Feng Gao, Lei Feng, Jiemin Wu, Zexia Wang and Wangyang Chen
Out-of-hospital cardiac arrest (OHCA) causes a high mortality rate each year, which is a threat to human well-being and health. An automated external defibrillator (AED) is an effective device for heart attack-related diseases and is a panacea to save OH...
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Yuan Ren, Liming Wang, Jianfeng Li, Wei Cheng and Xinqiang Ma
In this study, we explored the effects of a laser cleaning process on the surface properties of an aerospace aluminum alloy. We performed surface cleaning on an AA2024 aluminum alloy. Through SEM and EDS analyses on the surface of the aluminum alloy samp...
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Mingliang Ma, Liming Wang, Jianfeng Li, Xiujie Jia, Xing Wang, Yuan Ren and Yuansheng Zhou
As a common mechanical material for mining machinery, Q345 is prone to oxidation due to the moist working environment. At present, laser cleaning is often used to remove rust oxides from the substrate. The pollutant of mining machinery is comprised of a ...
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Kijung Park, Gayeon Kim, Heena No, Hyun Woo Jeon and Gül E. Okudan Kremer
Fused filament fabrication (FFF) has been proven to be an effective additive manufacturing technique for carbon fiber reinforced polyether?ether?ketone (CFR-PEEK) due to its practicality in use. However, the relationships between the process parameters a...
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Sergey Goolak,Oleg Gubarevych,Eduard Yermolenko,Maxim Slobodyanyuk,Oleksandr Gorobchenko
Pág. 25 - 34
It has been proposed, in order to model an induction motor for vehicles, to employ a system of differential equations recorded in the «inhibited coordinates». To improve the algorithm robustness, the number of the system?s equations was reduced by expres...
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Olecsiy Kozachenko,Andrii Pakhuchyi,Olexander Shkregal,Sergiy Sorokin,Sergey Dyakonov,?ykola Gusarenko,Volodymyr Kadenko
Pág. 52 - 59
This paper reports the results of the experimental study to substantiate the rational structural and regime parameters of a two-drum reaping machine for harvesting flax oilseeds by the method of combing plants on the root. We have confirmed the results o...
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Svitlana Onysh?henko,Alla Bondar,Vera Andrievska,Nadiia Sudnyk,Oleh Lohinov
Pág. 33 - 42
The study addresses the task on determining the optimal road map for the enterprise development ? the choice of the sequence of projects and their parameters, which would ensure the achievement of the goal taking into consideration the basic requirements...
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N. V. Khalipova
Pág. 58 - 69
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O. V. Fomin
Pág. 140 - 146
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S. V. Myamlin,V. V. Zhizhko
Pág. 173 - 182
In the paper a preliminary estimation of the dynamic qualities of passenger coaches is presented and the choice of parameters of suspension stages for bogie 68-7007 is performed with the purpose of their improvement and increase of operation traffic spee...
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B. M. Bondarenko,A. P. Razghonov,V. I. Profatilov
Pág. 121 - 125
The scientific substantiation and choice of optimum characteristics of the optical channel for measurement of dynamic characteristics of an air backlash change between the relay armature and core that allows automating a process of measurement of mechani...
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O. M. Pshinko,S. V. Myamlin,Yu. M. Fediushyn,V. I. Prykhodko,O. A. Shkabrov
Pág. 106 - 107
In article the estimation of economic efficiency from use of bogies of carriages with optimum parameters of spring suspension with application of traction calculations is offered.
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Arturo J. Fernández
Confidence regions for the Weibull parameters with minimum areas among all those based on the Conditionality Principle are constructed using an equivalent diffuse Bayesian approach. The process is valid for scenarios involving standard failure and progre...
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Shuangquan Li, Shangyi Ma and Shaoqing Wang
When the complex Morlet function (CMOR) is used as a wavelet basis, it is necessary to select optimal bandwidth and center frequency. However, the method to select the optimal CMOR wavelet parameters for one specific frequency is still unclear. In this p...
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Yexin Li, Binjie Li, Yiyao Jiang, Chengrui Xu, Baidong Zhou, Qi Niu and Chengsong Li
In order to design a branch-cutting type green pepper harvesting device, we firstly study the whole process of straight knife green pepper cutting to reveal the cutting mechanism and provide theoretical guidance to the design. A finite element model was ...
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Van-Vinh Nguyen, Nhat-Tung Nguyen, Quang-Thuan Nguyen, Van-Hai Bui and Wencong Su
The primary function of hybrid direct current circuit breakers (HCBs) is to quickly interrupt fault currents to protect high-voltage direct current (HVDC) systems. To enhance the reliability and stability of HVDC systems, optimal design of HCBs is requir...
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Volodymyr Dzyura, Pavlo Maruschak and Olegas Prentkovskis
The analytical dependences for determining the overlap area of V-shaped grooves of partially regular microrelief shifted by an angular pitch of 0.5° are established. The V-shaped grooves are formed on the end surface of the rotary body by vibration. In a...
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Borys Liubarskyi,Natalia Lukashova,Oleksandr Petrenko,Tetyana Pavlenko,Dmytro Iakunin,Sergiy Yatsko,Yaroslav Vashchenko
Pág. 16 - 25
A procedure for determining basic estimation parameters has been devised for the proposed structure of the electromechanical shock absorber. The procedure is based on a simplified mathematical model for determining the electromagnetic and electromotive f...
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Chen-Yuan Chung
Plastic lenses are light and can be mass-produced. Large-diameter aspheric plastic lenses play a substantial role in the optical industry. Injection molding is a popular technology for plastic optical manufacturing because it can achieve a high productio...
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