Energy method in the form of Tymoshenko Ritz-solved the problem of stability of a circular cylindrical shell under uniform axial compression. Considered axisymmetric shape shell buckling during buckling and axisymmetric initial state, as well as axisymmetric subcritical state during compression. The resulting solution is exactly consistent with the decision of the Lorentz-Tymoshenko known as a classic. 
Keywords: Skin, sustainability, energy, work, buckling.

Keywords:

Investigate ways to improve the efficiency and sustainability of organizational and technical systems for small and medium-sized businesses in the construction, through a systematic approach to organizing the process of functioning.
Keywords: small business, small businesses, construction, system approach, business process, S-shaped development.

Keywords:

Simulate processes increase control efficiency of building production. The influence of organizational and technical level of construction operations for the duration of construction projects, productivity and cost of production. 
Keywords: reliability, efficiency, building systems, modeling, quality, promotion, evaluation, interaction construction processes.

Keywords: