|
|
|
|
|
Pavel Mikhalichenko,Ivan Biliuk,Olexandr Kyrychenko,Victor Nadtochii,Anatoly Nadtochiy
Pág. 12 - 18
All types of relay protection are based on comparing the values for certain attributes under a system's normal and emergency operational modes. A new attribute for defining the emergency mode in a direct current traction electricity supply system has bee...
ver más
|
|
|
|
|
|
|
|
|
|
|
Elham Rouholahnejad Freund, Karim C. Abbaspour, Anthony Lehmann
Pág. 1 - 18
As water resources become further stressed due to increasing levels of societal demand, understanding the effect of climate and landuse change on various components of the water cycle is of strategic importance. In this study we used a previously develop...
ver más
|
|
|
|
|
|
|
|
|
|
|
O. O. Tarnopolskyi,M. M. Rotmistrovskyi,M. I. Kazakevych
Pág. 193 - 200
The results of more than 30-year monitoring and investigations of the real work state of exceptional suspended bridge steel structures made in 1978 are presented in the paper. The major problems and difficulties discovered in the process of the structure...
ver más
|
|
|
|
|
|
|
|
|
|
|
K. Y. Soldatov,A. H. Kriuk
Pág. 161 - 164
The article, based on the example of an existing metal arch bridge in Zaporozhye, considers application of the «resilient models» technique in calculations of oscillations and stability of such structures. The own free vertical oscillations of the arch s...
ver más
|
|
|
|
|
|