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Krystyna Niziol
Pág. 37 - 45
The paper aims to analyse selected legal and economic issues connected with control of concentration in the banking sector in Poland. The antitrust law aims to counteract the monopolisation of the market. Undertakings, including banks, can take actions w...
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Tímea Kiss, Gabriel J. Amissah and Károly Fiala
Stone and concrete revetments are widely constructed to control bank erosion and thus stabilize river banks. The consequences include accelerated erosion at unrevetted downstream channel sections and in-channel incision at revetted sections. The studied ...
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Huanyu Wu, Wei Zhang, Zongbin Liu, Xuhui Bai, Junwei Huang, Jun Huang and Zezhou Wu
Rail transit is an important part of the urban transportation system, while the noise generated during construction seriously affects the engineering personnel and surrounding residents. To investigate the noise emissions and characteristics during the c...
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Dongfeng Yan, Zehang Zhao, Anchen Song, Fengming Li, Lu Ye, Ganchao Zhao and Shan Ma
The fluidic pintle nozzle, a new method to control the thrust of a solid rocket motor, has been proposed in recent years by combining the pintle with the aerodynamic throat (fluidic throat). The study of static characteristics has proved that it has a re...
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Wei Qu, Qianghui Zhang, Yumei Qin, Jinggang Miao, Zeqing He and Yanchu Yang
A fan is part of the core equipment of a super-pressure balloon altitude control system, and high-performance fans have a significant impact on the altitude control capability and flight safety of super-pressure balloons. This paper proposes a mixed-flow...
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Ziqi Zhou, Pan Geng, Wei Cao and Xiaoyan Xu
In the navigation of rudderless dual-motor propulsion ships, it is often necessary for the dual motor to run stably at different given speeds. However, the existing coupling strategies cannot achieve precise cooperative control of the dual motor under di...
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Alexios Lolas, Aikaterini Molla, Konstantinos Georgiou, Chrysoula Apostologamvrou, Alexandra Petrotou and Konstantinos Skordas
Mussel shells, with their calcium carbonate content, serve as a natural pH buffer, aiding in neutralizing acidic soils and, consequently, enhancing nutrient availability for plants. The aim of this study was to evaluate the effect of treating soils with ...
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Regiane Cristina de Oliveira, Pedro Hiroshi Passos Ikuno, Dirceu Pratissoli, José Romário de Carvalho, William Wyatt Hoback and Bruno Alexis Zachrisson Salamina
Brazil is one of the largest producers of pulses globally, and soybean ranks highly in terms of production. However, pests increase crop production costs and affect oilseed production and quality. Pests are primarily controlled by chemicals, leading to c...
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Sixu Liu, Jianfei Xu, Nan Zhou, Yuzhe Zhang, Chaowei Dong and Zhuo Lv
The mining of coal resources is accompanied by a large amount of solid waste such as gangue, which seriously affects the ecological environment. The gangue grouting backfilling technique can achieve the dual goals of gangue disposal and surface deformati...
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Jianfeng Zhu, Guochen Huang, Maoguang Xu, Ming Liu, Bo Diao and Po Li
Combined with the development trend of high speed generators and the high voltage of DC microgrids in high-power series hybrid aero propulsion system, a set of hybrid systems with a power of 200 kW, voltage of 540 V, and speed of 21,000 r/min is establis...
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