|
|
|
|
|
Yan Dai and Chao Sun
In sonar systems, the performance of adaptive beamformers severely degrades when mismatches occur between the actual and presumed steering vectors of the desired signal, mainly due to hydrophone position errors, amplitude-phase errors, and the scattered ...
ver más
|
|
|
|
|
|
|
|
|
|
|
Hongjie Gao, Weibin Ma, Wenhao Zou, Jinlong Zhang, Xinyu Li and Jiaqiang Han
With the implementation of the regional coordinated development strategy, traffic flow has grown explosively. The construction of a larger tunnel section becomes an effective way to solve the highway network?s insufficient transport capability problem. C...
ver más
|
|
|
|
|
|
|
|
|
|
|
Haiwang Yue, Hugh G. Gauch, Jianwei Wei, Junliang Xie, Shuping Chen, Haicheng Peng, Junzhou Bu and Xuwen Jiang
Increasing the maize production capacity to ensure food security is still the primary goal of global maize planting. The purpose of this study was to evaluate genotypes with high yield and stability in summer maize hybrids grown in the Huanghuaihai regio...
ver más
|
|
|
|
|
|
|
|
|
|
|
Ilia Pankratov
Pág. 47 - 51
The paper is dedicated to a mathematical simulation of the motion of a spacecraft in an elliptical orbit. The acceleration vector is limited in modulo and orthogonal to the plane of spacecraft orbit during its motion. The spacecraft motion is described u...
ver más
|
|
|
|
|
|
|
|
|
|
|
Lidia Yadira Perez-Aguilar, Wenseslao Plata-Rocha, Sergio Alberto Monjardin-Armenta, Cuauhtémoc Franco-Ochoa and Yedid Guadalupe Zambrano-Medina
Arid and semiarid regions are geographic units that cover approximately 43% of the earth?s surface worldwide, and conditions of extreme drought and reduced vegetation cover predominate in these regions. In Mexico, arid and semiarid ecosystems cover more ...
ver más
|
|
|
|
|
|
|
|
|
|
|
Matej Vojtek and Jana Vojteková
Flood susceptibility mapping and assessment is an important element of flood prevention and mitigation strategies because it identifies the most vulnerable areas based on physical characteristics that determine the propensity for flooding. This study aim...
ver más
|
|
|
|
|
|
|
|
|
|
|
David Reiser, El-Sayed Sehsah, Oliver Bumann, Jörg Morhard and Hans W. Griepentrog
Intra-row weeding is a time consuming and challenging task. Therefore, a rotary weeder implement for an autonomous electrical robot was developed. It can be used to remove the weeds of the intra-row area of orchards and vineyards. The hydraulic motor of ...
ver más
|
|
|
|
|
|