Abstract There is a fundamental interest in studying travertine rocks, and this to understand their structure, geomechanical behavior other particularities order guarantee proper use different engineering architectural applications, thus, evaluate the sustainability of travertines, natural resources, stability slopes, preservation cultural heritage mitigation possible anthropic risks. Travertin...

The article considers the problem connected with study of well drilling rates in complex reservoirs. Its solution is presented form a neural network model that takes into account structural, geomechanical and technological features «rock mass — well» system. possibility predicting method different strength structural-lithological characteristics massif, based on modeling, presented. purpose thi...

The geological storage of CO2 coming from large industrial facilities has been studied in detail for the last several years as a solution against the greenhouse effect and climate change in a number of countries. It is considered as a complementary solution together with the research for the non pollutant or/and renewable energy sources. One of the available options is the injection of the supe...

The present paper describes a parallel preconditioned algorithm for the solution of partial eigenvalue problems for large sparse symmetric matrices, on parallel computers. Namely, we consider the Deflation-Accelerated Conjugate Gradient (DACG) algorithm accelerated by factorized sparse approximate inverse (FSAI) type preconditioners. We present an enhanced parallel implementation of the FSAI pr...