Development of logical and mathematical models for making managerial decisions in complex organizational systems for special purposes

Modeling of systems and processes, Journal Year: 2023, Volume and Issue: 16(1), P. 26 - 34

Published: March 29, 2023

This article discusses the problem of making managerial decisions by employees when using complex organizational systems for special purposes. In order to make effective management in purposes, it is necessary develop structure this system, adapt mathematical models set goals real goals-processes, choice alternative intermediate such systems. It advisable adhere following approach "a solution a multi-layered iterative information process initiated situation, preceding action." When developing cognitive (CMM) decision-making (CMP), we will assume that target settings (TA) are homogeneous and should be based on basic principles construction (COSSN) The signs classification stages given: analysis, forecasting, optimization alternatives. PUR functioning SSSN important all who, constantly or periodically act as managers (curators, organizers, entities). network model CSSSN form graph G developed requirements system technology adoption SD.

Language: Английский

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Gene Diversity In Seed Crop Of Taurus Cedar (Cedrus Libani A. Rich.) Over An Altitudinal Range

GEOGRAPHY ENVIRONMENT SUSTAINABILITY, Journal Year: 2024, Volume and Issue: 16(4), P. 63 - 71

Published: Jan. 12, 2024

There could be many environmental and biological impacts such as edaphic, geographic, climatic, age, tree structure population on morphological, physiological genetically seed quality in plant species. Gene diversity is an important mirror of quality. crops were estimated based female male strobili productions fifty trees (N) randomly chosen from each sampled over altitudinal range low (1200-400 meters ≤ altitude), middle (1400 m < altitude 1600 m), high (1600 1800 very (1800 altitude) Taurus cedar also known Lebanon (Cedrus libani A. Rich.) for two consecutive years (2021&2022). The variation strobilus production was subjected to estimation fertility variation. total (Ψ) the Impacts some growth characteristics (tree height diameter at breast height) investigated. Strobili varied among populations individuals within population, between years. differences found coefficient variations which productions. Tree seemed more reasonable predictor than age number strobili. Fertility parents generally higher that both First year showed parental individual populations. (GD=1-0.5Ψ/N) ranged 0.967 0.974 loss highest gene 0.004 (0.967 & 0.971) Results study indicated crop used produce their grading. Moreover, data sets can fill Forest Landscape Restoration library (FLR-Library).

Language: Английский

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THE INFLUENCE OF THE CLIMATIC INDEX OF DEGREE-DAYS ON THE VITALITY OF 3-YEAR-OLD SEEDLINGS OF SCOTS PINE FROM SEEDS GRADED BY SPECTROMETRIC FEATURES

Forestry Engineering Journal, Journal Year: 2022, Volume and Issue: 12(1), P. 110 - 118

Published: April 14, 2022

The natural and production conditions of the growth scots pine during forest restoration determine research degree interrelation exogenous temperature factors with technological processes seed sorting quality reproductive material. Descriptive statistics biometric parameters height diameter root neck were determined for first, second, third growing periods individuals Scots obtained by autumn transplanting containerized (1+0) seedlings sprouted from seeds conditioned spectrometric properties to a post-pyrogenic site. correlation relationship average variant index days GDD, as well vitality indices was evaluated using Spearman method based on SPSS Statistics application software package. influence degree-day DQI crops in 3rd season after different fractions is characterized weak positive (p = 0.170; p 0.05). process separating light fraction demonstrates best transplanted at end VP-III, statistically significantly 0.05) differing other groups within this study

Language: Английский

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Modeling the operation of structures made of dispersed-reinforced concrete with an alternating dynamic load of high intensity

Modeling of systems and processes, Journal Year: 2021, Volume and Issue: 14(3), P. 36 - 44

Published: Sept. 22, 2021

A study of the properties dispersed-reinforced concrete and a effect dispersed reinforcement on operation structures was carried out, mainly with static load same sign. Based results experimental studies, comparison made work dispersed-laminated under alternating dynamic action high intensity reinforced beam elements similar influences. The studies cubes prisms for compression are also presented. allow us to conclude that there is significant investigated influences feasibility combined structures. use in will increase resistance such

Language: Английский

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Simulation of a possible situation in case of fire at facilities with a massive presence of people

Modeling of systems and processes, Journal Year: 2022, Volume and Issue: 15(1), P. 85 - 96

Published: April 8, 2022

The article analyzes fires in the Russian Federation, which are a complex physical phenomenon conjunction with features of objects under consideration, on fire occurred. From point view solving an engineering problem, possible variant development shopping and entertainment center is considered. It has been established that, despite significant difference quantitative ratio, at massive stay people, comparison other objects, simultaneously affect larger number as result they can have much more tragic consequences. As analysis carried out study our case, proposed object extinguishing carrying emergency rescue operations, it be noted that time there were quite lot people protection object. In this paper, when calculating provision resources for departments using example study, mathematical model related to structural model, where represented system its device functioning mechanism. A scheme developed alignment forces means localization accordance chosen scenario fire. Modeling situation case was Passage Voronezh.

Language: Английский

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Simulation of protective devices to ensure the safety of technological processes using explosive gases

Modeling of systems and processes, Journal Year: 2021, Volume and Issue: 14(3), P. 28 - 35

Published: Sept. 22, 2021

The article presents a calculation algorithm for the theoretical substantiation of design protective devices used safe operation explosive equipment and supply lines. Mathematical modeling is applied. development providing explosion fire safety gas-flame in construction considered. hazardous gases from deflagration to detonation combustion modes developed on principle cutting off flame by means mechanical actuation locking elements: membrane conical valve are presented.

Language: Английский

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Modeling of options for the development of a fire at an object of mass stay of people

Modeling of systems and processes, Journal Year: 2022, Volume and Issue: 15(4), P. 69 - 81

Published: Dec. 13, 2022

The operational-tactical characteristics of the object mass stay people Municipality Cinema and Concert Hall "October" in Lipetsk are considered. layout protection, existing external internal fire-fighting water supply given. calculation forces means for extinguishing a fire auditorium on first floor facility, as well control room second floor, was carried out. It is noted that, based practice fires, most effective agents enclosed spaces foam. A diagram possible development shown figure. required number barrels, vehicles personnel protecting premises under consideration deployment departments ground to extinguish this organization communication during Based calculations performed, it concluded that there enough these fires according or options fire, not necessary attract additional rank.

Language: Английский

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Effect of Seed Extraction Period and Germination Temperature on Viability of Pinus patula Under Controlled Conditions

Asian Journal of Research in Agriculture and Forestry, Journal Year: 2024, Volume and Issue: 10(1), P. 61 - 71

Published: Feb. 15, 2024

A number of coniferous species have demonstrated varied cone responses to the temperature intensities for seed release and subsequent germination behaviour. This study investigated interactions physical characteristics (weight width), exposure duration (6,12 24 hours) at a fixed extraction (65°C) (22, 27 32°C) on quality Pinus patula. The experimental design was factorial experiment (4×3×3) laid down in completely randomized (CRD), with thirty-six treatments replicated 3 times. Analysis difference means from three factor effects ANOVA performed using R Statistical software. Where significant differences were observed, post hoc tests carried out separate Tukey test 5 % significance level. Results showed (p=0.001) performance as result characteristics, periods, chamber conditions. Seeds extracted heavy cones exposed 32℃ highest percent 90% while lowest 20% light similar Negative correlation coefficients observed seeds narrow cones, thus sorting wide recommended better P. patula germplasm.

Language: Английский

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Modeling the process of diagnosing leaks based on a two-alternative hypothesis, taking into account interference from stochastic consumption in a hydraulic system

Modeling of systems and processes, Journal Year: 2024, Volume and Issue: 17(1), P. 111 - 120

Published: March 24, 2024

Let's consider mathematical models and methods for diagnosing leaks in hydraulic pipeline systems. As part of the task, two subtasks can be distinguished: identifying fact a leak based on use two-alternative hypothesis, as well determining location size leak. The task has been investigated sufficient detail. Attention this work is paid to development algorithms systems presence or absence leakage. It proposed solve both problems complex problem diagnostics software created results research used automated control monitoring Based collected data parameters system, such pressure, consumption target product, etc., model that include probability distributions, expected values parameter variations. solution specific detection may vary depending type system. main focus hypothesis determine existence taking into account noise generated by random selection product consumption. Leaks are classified natural, resulting from emergency situations, also unsanctioned selections product.

Language: Английский

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Modeling the occurrence of internal stresses in a complex material structure

Modeling of systems and processes, Journal Year: 2024, Volume and Issue: 17(2), P. 50 - 61

Published: June 28, 2024

The article is devoted to solving the problem aimed at improving operational characteristics of bridge bed a railway through use dispersed reinforcement. It noted that structural elements made fibroconcrete behave similarly reinforced concrete with increasing load: long before destruction, they experience continuity violation. question distribution forces between individual fibers stop crack, change in these conditions during magnitude and directions efforts moment preceding destruction considered. A centrally stretched element chaotically violation form crack perpendicular tensile stresses investigated. proposed dependencies allow us estimate crossing deformations associated opening latter, which important for creating unified methodology calculating strength determining fiber-reinforced structures. expediency using (fiber) reinforcement ballast-free slab task statement description fiber are completed. subject area be justified experimentally by studying impact load structures alternating inertial load. conducted experimental studies have shown possibility slab.

Language: Английский

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