Safety of Perspective Spacecrafts with the Nuclear Power Installation

Optimisation of the temperature control system of a geodetic space complex satellite

“…Figure 2 shows the steady-state periodic operation graphs for comparison TSS with parameters selected as a result of static optimization (lines 1,2,3), and system operation graphs with parameters obtained as a result of dynamic optimization (4,5,6). Lines 1,2,3refrigerant temperature at the inlet and outlet of the radiation heat exchanger, at the outlet of the gas-liquid heat exchanger, respectively.…”

“…Figure 3 shows the result of a breach of the aggregate compartment force structure with the destruction of the temperature control system pipework. In a real accident situation, several destructive factors are to be expected, e.g., impact ESV a meteor shower, a fragment of the old SC or other kinetic element [6,[8][9][10].…”

“…Probability of penetration n of particles of a flux of projectile masses mi (i = 1,2,3…, n) can be determined according to the formula ′ ′ (6) where Nn -The average flow of a munition capable of causing unacceptable damage to a vulnerable surface ESV; F 'exposed surface area; τthe exposure time of the flux of lethal elements. Then The expression (6) shows that improving the survivability of a satellite in orbit can be achieved by reducing the exposed surface area. One option for achieving this is the use of a shield.…”

A note on general quadratic groups

“…For the linear case, the graded version of L-G principle was studied by Chouinard in [13], and by Gubeladze in [14], [15]. In [11], the first author and M.K.…”

Quillen--Suslin Theory; Revisited over Graded Rings

“…For the linear case, the graded version of the Local-Global Principle was studied by Chouinard in [7], and by J. Gubeladze in [8], [9]. Though the analogue results are expected for the symplectic and orthogonal groups, according to our best knowledge, that is not written explicitly in any existing literatures.…”