scholarly journals Study of the influence of environmental factors on the optical parameters of transparent thermoplasts

2021 ◽  
pp. 127-132
Author(s):  
V.P. Rudnev ◽  
Keyword(s):  
Climatic Factors ◽  
Construction Materials ◽  
Climatic Conditions ◽  
Optical Parameters ◽  
Humid Climate ◽  
Outer Contour ◽  
Complex Technical Systems ◽  
Technical Systems ◽  
The Stability ◽  
Atmospheric Factors

The use of transparent thermoplastics as construction materials imposes special requirements on them, both in terms of strength characteristics and physical properties. The stability of these properties plays an important role in the use of transparent thermoplastics in complex technical systems, where these materials are used as a structural material for the outer contour of the product, which is exposed to aggressive climatic factors. In this work, the influence of atmospheric factors in the warm humid climate zone (the coastal atmosphere of humid subtropics) on the optical properties of transparent thermoplastics was investigated, which made it possible to obtain important information for assessing the performance of polymers of this class in natural climatic conditions.

scholarly journals FEATURES OF THE FORMATION OF OIL CONTENT IN VARIETIES OF SPRING OATS IN SHARPLY CONTINENTAL CLIMATIC CONDITIONS

2020 ◽  
pp. 86-93
Author(s):  
O. A. Iusova ◽  
P. N. Nikolaev ◽  
V. S. Vasiukevich ◽  
I. V. Safonova ◽  
N. I. Aniskov
Keyword(s):  
Climatic Factors ◽  
Fat Content ◽  
Climatic Conditions ◽  
Forest Steppe ◽  
Adaptive Parameters ◽  
Yield And Quality ◽  
Final Assessment ◽  
Key Factor ◽  
The Stability

Among spring grain crops, oats are one of the main crops in Siberia. Taking into account climatic factors and production demands, breeding for increased productivity and adaptability to local natural and climatic factors, resistance to biotic and abiotic stresses appears to be currently relevant. This is a key factor for a permanent increase in both yield and quality of agricultural products. The aim of the study is to determine the group of adaptive oat varieties by the content of crude fat in grain for introduction into production and inclusion in breeding programs. The studies were carried out in the conditions of the southern forest-steppe of the Omsk Region during 2013-2018. The indicator of the range of crude fat content according to V.A. Zykin (d), index of ecological plasticity according to D.I. Baranskiy (O), homeostaticity according to V.V. Khangildin (Hоm), an indicator of intensity according to R.A. Udachin (I), the relative stability of the trait N.A. Sobolev (St²), an indicator of the level of stability of the variety according to E.D. Nettevich (PUSS) were calculated. The final assessment of adaptability was based on the sum of the ranks. The minimum range of crude fat content was observed in varieties Irtysh 23 and Fakel (d = 1.87 and 2.97%). Cultivars Irtysh 23, Tarsky 2, Fakel, Sibirskiy Hercules and Sibirskiy golozerny differed in plasticity (O = 6.4–13.6) and homeostaticity (Hom = 0.82). The variety Irtysh 13 (Hom = 0.23) was also homeostatic. The stability of the trait according to N.A. Sobolev characterized all varieties (St² = 0.94–0.99), according to E.D. Nettevich – Irtysh 13, Irtysh 23, Pamyati Bogachkova and Fakel (PUSS = 193.4-305.5%). Having an assortment of estimated indicators of adaptive parameters, it is advisable to apply the ranking and conduct the final assessment according to the sum of the ranks received by each variety. The varieties Irtysh 23 and Fakel (∑ ranks = 23 and 25) and Sibirskiy Holozerny (∑ ranks = 26) are the most adaptive in terms of the content of crude fat in grain for the conditions of the southern forest-steppe of Western Siberia.

scholarly journals The Behavior of Some Spring Barley Varieties in the Climatic Conditions of North East Baragan Plain

2013 ◽  
Vol 70 (1) ◽  
pp. 150-159
Author(s):  
Nicoleta AXINTI ◽  
Gabriela-Alina CIOROMELE
Keyword(s):  
Climatic Factors ◽  
Spring Barley ◽  
Climatic Conditions ◽  
The Third ◽  
North East ◽  
Average Production ◽  
The Stability

In this paper we analyzed the behavior of four varieties of spring barley, i n terms of productivity, based on multi-annual testing, in order to identify and recommend the most well adapted of them to be grown in the area. The research was conducted during 2008-2010 in the Vădeni area, Braila County, on four varieties of spring barley  ( Thuringia, Anabell, Cristalia and Tunika ) . The average production of the three crop years was 2362 kg/ha. In 2008, year considered normal in terms of climate, we obtained the highest yields in all four species studied, its value falling between 2350 kg/ha for Cristalia and 3025 kg/ha for Annabell. In terms of year 2009, the production of the studied varieties ranged from 1962 kg/ha for Tunika up to 2250 kg/ha for Annabell, this year being characterized as a dry year. In the third experimental year, 2010, yields ranged from 1937 kg/ha for Cristalia and 2462 kg/ha for Annabell, this year being characterized, in terms of rainfall, as a rainy year, but rainfall was not uniformly distributed. Following the evaluation of the stability of varieties’ performance using the superiority index  (Pi) , the Annabell variety proved best  ( 28% ) . Research has shown that genetic and climatic factors have influenced the yields obtained from the four varieties studied during three experimental years. In all three experimental years, Annabell variety was superior to all other studied varieties, obtaining productions between 2337 kg/ha and 3025 kg/ha. The production of spring barley in 2008 was significantly superior to other experimental years.

Impacts of Environmental and Biological Factors on Complex Technical Systems

2017 ◽  
Vol 6 (4) ◽  
pp. 21-30
Author(s):  
А. Лаптев ◽  
A. Laptev ◽  
Д. Бугай ◽  
D. Bugay ◽  
Анатолий Александров ◽  
...  
Keyword(s):  
Climate Change ◽  
Ecological Factors ◽  
Research Area ◽  
Climatic Conditions ◽  
The Arctic ◽  
Economic Losses ◽  
Natural Environments ◽  
Complex Technical Systems ◽  
Technical Systems ◽  
The Impact

The analysis of climate change in the Russian Federation has been carried out. It has been shown that the major climate change is occurring in the Arctic zone — increased emissions of carbon dioxide and methane, deep permafrost thawing. Due to the change of climatic conditions, improvement of the ecological situation and wide use of biological cleaning systems for a treatment of industrial and household effluents a change of biological systems is taking place. Natural selection of microorganisms capable to use as a nutritious substratum such previously inert materials as polyethylene and polypropylene is intensified. The change of climatic conditions in which complex technical systems are operated, and the impact of biological and ecological factors on these systems dictate the need for revision of approaches to creation, design and operation of appropriate technical means. Actions for standardization of procedure for products climatic qualification taking into account the influence of newly forming climatic, ecological and biological conditions will allow considerably reduce economic losses from corrosion, aging and biodeterioration of complex technical systems. The work has been carried out in the frame of implementation of complex research area 18 “Climatic Tests for Safety Provision and Protection from Corrosion, Aging and Biodeterioration of Materials, Constructions and Complex Technical System in Natural Environments” (“Strategic Areas for Development of Materials and Their Treatment Technologies for the Period until 2030”).

MODERN APPROACHES TO ASSESSING THE IMPACT OF EXTERNAL FACTORS ON MATERIALS AND COMPLEX TECHNICAL SYSTEMS (to the 120th anniversary of G.V. Akimov)

2021 ◽  
pp. 117-130
Author(s):  
E.V. Nikolaev ◽  
◽  
A.V. Slavin ◽  
V.O. Startsev ◽  
A.B. Laptev ◽  
...  
Keyword(s):  
Climatic Factors ◽  
External Factors ◽  
New Directions ◽  
Modern Methods ◽  
Complex Technical Systems ◽  
Properties Of Materials ◽  
Technical Systems ◽  
Soviet Russia ◽  
The Impact ◽  
120Th Anniversary

The founder of the science of protecting materials from corrosion, aging and bio-damage in Soviet Russia is Georgy Vladimirovich Akimov, who created the infrastructure for climate testing of materials and products. Currently, his students and followers have discovered new directions for the development of climatic and microbiological tests – these are studies of the preservation of the properties of materials in complex technical systems under the influence of climatic factors, mold fungi, bacteria and operational loads using the most modern methods at the sites of the created network of climate test stations, as well as using modern regulatory documentation.

Knowledge representation in graph-models of complex technical systems

2020 ◽  
pp. 12-16
Author(s):  
Evgenia R. Muntyan
Keyword(s):  
Analytical Study ◽  
Level Structure ◽  
Graph Models ◽  
Level Data ◽  
Knowledge Formation ◽  
Different Types ◽  
Level Information ◽  
Complex Technical Systems ◽  
Technical Systems ◽  
Structure Of Knowledge

The article analyzes a number of methods of knowledge formation using various graph models, including oriented, undirected graphs with the same type of edges and graphs with multiple and different types of edges. This article shows the possibilities of using graphs to represent a three-level structure of knowledge in the field of complex technical systems modeling. In such a model, at the first level, data is formed in the form of unrelated graph vertices, at the second level – information presented by a related undirected graph, and at the third level – knowledge in the form of a set of graph paths. The proposed interpretation of the structure of knowledge allows to create new opportunities for analytical study of knowledge and information, their properties and relationships.

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