The mathematical models and solution algorithms for optimization of grillage-type foundations arc presented. Optimization of grillage is based on optimization of separate beams comprising grillage. Minimising of maximum in absolute value vertical reactive force, bending moment, and reaction-bending moment together is sought in a separate beam. All these problems are non-linear, therefore are solved iteratively changing in each iteration the structure shape to a better neighbouring shape. Solution of this requires three steps: finite element analysis, analytical sensitivity analysis, and optimal re-design via linear mathematical programming. The main problem related to the proposed technique is to guarantee the global minimum solution. Engineering algorithm is suggested for avoidance of local minimum solutions: optimization procedure starts from quasi-optimal initial pile placement scheme, which is designed by a special expert system.
The concept of sustainability, and especially sustainable development, is among the most ambitious and controversial concepts in the scientific literature. Knowledge and research concerning the condition, development or transformation of sustainability has become not only the original means of the generation of socioeconomic science knowledge. It is also an alternative for the analysis of especially sophisticated development problems-e.g. the problems of survival, effective change and avoidance of huge losses pertaining to such complexes as cities, countries or regions. Finding the ways of such knowledge conversion into the field of science is complex, but there is no alternative. Research of sustainable development has already become especially prevalent, and, thus, the objects of cognition should be structured, possibilities should be consolidated, and the efficiency of the use of resources must be elevated. The first challenge of sustainability research conversion into the sustainability science is a thorough mastering of the systemic research technologies, as well as the development of the principal methodology of systemic research while evolving the possibilities of civilisation survival on Earth. The objective of the research is to find an adequate quantitative measure of complex system development sustainability and investigate in detail the type of development of a small country or region that could be named as a realisation of sustainable development possibilities. The methodology of the research includes the application of an adequate portfolio model, stochastic optimisation, and systemic analysis. The conclusions obtained by the research state that development possibilities of a small country should not be evaluated only in terms of economic-ecological aspects; more components, such as politics, integration, marketing, social-demographics, creativity, religion, innovation, finance, and investment should be included, which could be logically divided into four subsystems of country universal sustainability. The research also presents the adequate composition of efficiency and reliability of the general effect pertaining to the activity of all the subsystems, as well as the optimal allocation of marginal investment unit among the four subsystems.
The mathematical models and solution algorithms for optimization of grillage-type foundations are presented. Optimization of grillage is based on optimization of separate beams comprising grillage. Minimising of maximum in absolute value vertical reactive force, bending moment, and reaction-bending moment together is sought in a separate beam. All these problems are non-linear, therefore are solved iteratively changing in each iteration the structure shape to a better neighbouring shape. Solution of this requires three steps: finite element analysis, analytical sensitivity analysis, and optimal re-design via linear mathematical programming. The main problem related to the proposed technique is to guarantee the global minimum solution. Engineering algorithm is suggested for avoidance of local minimum solutions: optimization procedure starts from quasi-optimal initial pile placement scheme, which is designed by a special expert system.
Business (company) evaluation became a very important matter to Lithuania by now. Business evaluation is necessary for companies purchase or consolidation process analysis and for correct decision-making. The problem of business evaluation is analyzed in the paper. The paper examines discounted cash flow method for evaluation cash flow in the future discounted to the present value. Aspects of incorporation of risk measurement into the process of business evaluation are examined. Meanings of factors influencing the value are simulated using imitative technologies. The stochastic model of business evaluation is composed and researched in the article.
No abstract
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.