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Min Liu, Meng Xu, Liang Yuan, Shuiqin Zhang, Yanting Li and Bingqiang Zhao
Due to its broad yield-increasing effect and low cost, humic acid urea (HAU) has become one of the leading modified fertilizers worldwide. The fertisphere is the primary space where urea (U) granules participate in the soil nitrogen cycle, forming a nutr...
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Yangchun Lu, Yudong Lu, Ting Lu, Bo Wang, Guanghao Zeng and Xu Zhang
Malan loess is an eolian sediment in arid and semi-arid areas. It is of great significance to study the pore structure of Malan loess for its evolution, strength, and mechanical properties. In order to quantitatively characterize the absolute permeabilit...
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Danil Ivanov, Goncalo Amaro, Yaroslav Mashtakov, Mikhail Ovchinnikov and Anna Guerman
A formation flying control algorithm using the Lorentz force for Low Earth Orbits to achieve a trajectory with required shape and size is proposed in the paper. The Lorentz force is produced as a result of interaction between the Earth?s magnetic field a...
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Guang Zhan, Zheng Gong, Quanhui Lv, Zan Zhou, Zian Wang, Zhen Yang and Deyun Zhou
This paper reports on the formation and transformation of multiple fixed-wing unmanned aerial vehicles (UAVs) in three-dimensional space. A cooperative guidance law based on the classic missile-type parallel-approach method is designed for the multi-UAV ...
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Zhangcai Yin, Kuan Huang, Shen Ying, Wei Huang and Ziqiang Kang
Time geography considers that the probability of moving objects distributed in an accessible transportation network is not always uniform, and therefore the probability density function applied to quantitative time geography analysis needs to consider th...
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Sergei Soldatenko
The ocean, one of the five major components of the Earth?s climate system, plays a key role in climate-forming processes, affecting its change and variability. The ocean influences climate over a wide range of time?space scales. To explore the climate, i...
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N.E. Kasatkin,T.A. Prikhodko
Pág. 78 - 85
The article discusses one of the problems of multi-agent systems, namely the integration of obstacle grid maps created by various robots exploring different parts of the same environment. Simultaneous localization and Mapping (SLAM) is a well-known field...
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A. V. Chizhik
Pág. 21 - 29
Digital technologies have led to the formation of the new level of socio-cultural space, which is expressed in the permanent presence of the phenomenon of virtual reality in everyday life. It is the main motivating tool for social and political transform...
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Fahad A. Zaman and Lawrence W. Townsend
Solar particle events (SPEs) can pose serious threats for future crewed missions to the Moon. Historically, there have been several extreme SPEs that could have been dangerous for astronauts, and thus analyzing their potential risk on humans is an import...
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Sobirjon Sattorovich Radjabov,Shavkat Kh. Fazilov,Nomaz N. Mirzaev,Musokhon Kh. Dadakhanov,Mukhammadmullo A. Asraev,Farkhodbek M. Shamsiev
The paper analytically reviews the methods and algorithms for solving problems arising in the development of writer identification offline systems. The main applied problems that are solved on the basis of the processing and analysis of handwritten text ...
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