Applied Ontologies Formation Based on Subject Area Texts

The problems of the formation of applied conceptual systems based on ontologies constructed automatically from the texts of the subject area documents are considered. Algorithms of operations on ontologies using the thesaurus as a general conceptual basis, unifying the terminology of the subject area, are proposed. Experiments with ontology collection obtained from the texts of design documentation showed that the semantic similarity of the resulting concepts of the system can be increased through the use of thesaurus links.     Keywords: ontologies, thesaurus, operations on ontologies, graph theory, semantic similarity, Neo4j, Jav

Modeling of the Labour Force Redistribution in Investment Projects with Account of their Delay

The mathematical model of the labour force redistribution in investment projects is presented in the article. The redistribution mode of funds, labour force in particular, according to the equal risk approach applied to the loss of some assets due to delay in all the investment projects is provided in the model. The sample of the developed model for three investment projects with the specified labour force volumes and their defined unit costs at the particular moment is given

Constructive solution of highly effective photoenergy module: development and experimental testing

Based on experimental study and computermodeling of working temperature influence on the efficiency of Chinese production silicon solar cells identified temperature dependence of efficiency shows the feasibility of using Chinese production Si-SC in the construction of photovoltaic thermal system, which together with the heat pump is part of a combined system for hot water supply, heating and air conditioning. Based on a detailed analysis of the working temperature influence on the efficiency of photovoltaic processes that determine the solar cells work, it has been developed the optimal construction and technological solution of hybrid solar generated module, the main feature ofwhich is the heat exchange block, designed to reduce the solar cells working temperature. The experimental testing of hybrid modules samples equipped with developed cooling system, high-voltage part of power take-off system demonstrates their reliability and high efficiency which allow to achieve the such module efficiency up to 18.5 %.На основе экспериментального исследования в комплексе с компьютерным моделированием влияния рабочей температуры на эффективность кремниевых солнечных элементов китайского производства выявлена температурная зависимость их эффективности. Температурная зависимость показывает целесообразность использования солнечных элементов китайского производства в составе фотоэлектрической тепловой системы, которая вместе с тепловым насосом является частью комбинированной системы горячего водоснабжения, отопления и кондиционирования воздуха. На основе детального анализа влияния рабочей температуры на эффективность фотоэлектрических процессов, определяющих работу солнечных элементов, было разработано оптимальное конструктивно-технологическое решение гибридного солнечного генерирующего модуля, основной особенностью которого является теплообменный блок, предназначен для снижения рабочей температуры солнечных элементов. Экспериментальные испытания образцов таких модулей, оснащенных разработанной системой охлаждения и высоковольтной системой отбора мощности, демонстрируют их надежность и высокую эффективность, позволяющие достичь КПД гибридного модуля до 18,5 %

Carcinogenesis as a Process of the Reverse Evolution (Hypothesis)

The hypothesis about carcinogenesis process as a cell reverse evolution process is proposed. The process of transition of the cells functioning programs from its daughter forms to the plesiomorphic ones (those that cell used evolutionarily earlier) occurs under the conditions of genomic instability as a result of mutations. We suppose this transition to occur in the process of a cell malignant transformation as a result of the repair genes damage in the cell genome. The process consists in the mutational destruction of the existing cell functioning and management programs resulting in the unlocking and the bringing into action ancestral forms of the cell functioning programs. As a result, in each replication cycle the cell takes a step back in evolutionary terms. This leads at first to the formation of colonies of such cells (malignant tumor), and later to the cells which are metastases

CONSTRUCTIVE SOLUTION OF HIGHLY EFFECTIVE PHOTOENERGY MODULE: DEVELOPMENT AND EXPERIMENTAL TESTING

Based on experimental study and computer modeling of working temperature influence on the efficiency of Chinese production silicon solar cells identified temperature dependence of efficiency shows the feasibility of using Chinese production Si-SC in the construction of photovoltaic thermal system, which together with the heat pump is part of a combined system for hot water supply, heating and air conditioning. Based on a detailed analysis of the working temperature influence on the efficiency of photovoltaic processes that determine the solar cells work, it has been developed the optimal construction and technological solution of hybrid solar generated module, the main feature of which is the heat exchange block, designed to reduce the solar cells working temperature. The experimental testing of hybrid modules samples equipped with developed cooling system, high-voltage part of power take-off system demonstrates their reliability and high efficiency which allow to achieve the such module efficiency up to 18.5 %. На основе экспериментального исследования в комплексе с компьютерным моделированием влияния рабочей температуры на эффективность кремниевых солнечных элементов китайского производства выявлена температурная зависимость их эффективности. Температурная зависимость показывает целесообразность использования солнечных элементов китайского производства в составе фотоэлектрической тепловой системы, которая вместе с тепловым насосом является частью комбинированной системы горячего водоснабжения, отопления и кондиционирования воздуха. На основе детального анализа влияния рабочей температуры на эффективность фотоэлектрических процессов, определяющих работу солнечных элементов, было разработано оптимальное конструктивно-технологическое решение гибридного солнечного генерирующего модуля, основной особенностью которого является теплообменный блок, предназначен для снижения рабочей температуры солнечных элементов. Экспериментальные испытания образцов таких модулей, оснащенных разработанной системой охлаждения и высоковольтной системой отбора мощности, демонстрируют их надежность и высокую эффективность, позволяющие достичь КПД гибридного модуля до 18,5 %.

Implementation of contact interaction in a finite - element formulation

© 2014 O. A. Sachenkov, V. I. Mitryaikin, T. A. Zaitseva and Yu. G. Konoplev. The paper presents a technique which makes it possible to take into account contact interactions between surfaces based on the finite element method. The technique is based on iterative cycles, determining statuses of the contact elements and renewing the contact forces to satisfy the condition of zero penetration of all active contact elements. The proposed technique allows us also to take account of friction between the contacting elements. The paper considers an example of implementing contact interaction with regard to friction between bodies, and solves a model problem

Complex estimation of fitness training systems and women's somatic health of the first period mature age

The aimis to investigate if the overweight (OW) and obesity (OB) impact on the quality of life (QOL) of children with bronchial asthma (BA). Materials and methods: The study included 73 children aged 7 – 17, with moderate BA. Depending on the body mass index, patients were divided into the three clinical groups: normal body weight (NW) – 30 children, OW – 28 children and OB – 15 children. QOL was conducted by the Pediatric Asthma Quality of Life Questionnaire (PAQLQ). The statistical processing was carried out using the IBM SPSS Statistics Base (version 22) and EZR version 1.32. Results were considered statistically significant when p<0.05. Results: Children with BA and OB had statistically lower QOL than children with BA and NW in all PAQLQ domains. The Kruskal-Wallis H-test revealed a statistically significant difference between the different weight groups of children with BA both for the general QOL: H(2) = 37.51, p<0.001and for each rating scale separately. Pairwise comparisons using Steel-Dwass test indicated that scores of NW were observed to be significantly different from those of OW and OB for rating Activity and Symptoms scales (p<0.001). Conclusion: Comorbid OW and OB reduce the specific QOL of children with BA. In assessing the effectiveness of specific approaches to treating BA in children with OW and OB, an assessment of the QOL of children should be added to the traditional common clinical and laboratory assessment