Control of the formation of defects in brickwork of buildings

AIP conference proceedings, Journal Year: 2022, Volume and Issue: 2467, P. 020023 - 020023

Published: Jan. 1, 2022

The main damages arising during the operation of brick structures buildings are considered. aim work is to analyze results a technical examination building constructions residential building, with subsequent development proposals for their restoration and strengthening. object research existing house. process organizing survey buildings, which allows determining procedure collecting storing data, Modern solutions proposed. physical deterioration apartment was determined recommendations were given elimination brickwork defects.

Language: Английский

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Condition monitoring of multi-apartment buildings

AIP conference proceedings, Journal Year: 2022, Volume and Issue: 2647, P. 030018 - 030018

Published: Jan. 1, 2022

The data on the apartment buildings technical condition are a huge digital array for making important management decisions both within boundaries of individual territories municipal formation, and planning budget expenditures municipality, subject federation country as whole. In this paper aspects forming in various information systems considered. Also, basics ensuring reliability presented studied. notes that many years, during transition from planned economy to market economy, requirements regulations regulatory documents maintenance operation not fully observed by operating organizations. deadlines replacing equipment have worked out met. It is noted federal legislators Government Russian Federation defined general procedure monitoring formed common approach assessing their condition, owners' obligation finance these works has been defined, frequency determined. shown obtained combined regional would be an objective marker formation state programs field reducing unfit living housing fund financing mechanism.

Language: Английский

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The Root Collar Diameter Growth Reveals a Strong Relationship with the Height Growth of Juvenile Scots Pine Trees from Seeds Differentiated by Spectrometric Feature

Forests, Journal Year: 2023, Volume and Issue: 14(6), P. 1164 - 1164

Published: June 5, 2023

This study is intended for forest owners considering options to increase the efficiency of production seedlings in automated nurseries. In short rotation technology Scots pine (Pinus sylvestris L.), was integrated process grading seeds by spectrometric features, followed fall outplanting containerized a restorable post-pyrogenic site. There are studies effect viable seeds, but negligible amount testing has been conducted on seedling’s field performance from these seeds. It very important us evaluate morphogenesis juvenile trees relation change morphological features—increase root collar diameter (RCD-increment) and stem height (SH-increment)—in second third growing season outplanting. To determine nature interaction between independent (RCD increase), dependent (SH-increment), categorical (seed categories timespans) variables, regression analysis performed using R statistical software. All coefficients linear models statistically significant at 1% significance level, all positively associated with an seedling height. On average, RCD increment 0.1 cm causes SH-increment 0.72 ± 0.16 (p = 9.779 × 10−6). addition, 2020, compared 2019, 5.46 0.37 < 0.001). The seeds’ differentiation into strongly correlated Thus, order improve plant propagation protocol, it seems advisable first condition accordance feature, then apply coating (by pelleting or encapsulating) storage seeding conditions. For medium-term assessment seed future, 5, 7 10 seasons controlled.

Language: Английский

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FLR-Library reference information system for adaptive forest restoration: the information model

Forestry Engineering Journal, Journal Year: 2024, Volume and Issue: 13(4), P. 114 - 124

Published: Feb. 12, 2024

The process of restoring forest landscapes in the context global urbanization and deforestation relict stands, as well climate change, is complex important for studying, planning stages technological operations predicting results vitality growth stands. To solve this problem, a reference information system adaptive reforestation being developed. In paper, modeling description carried out using functional diagrams constructed IDEF0 methodology, arrows diagram with explanations processes given detail. For detailed analysis subject area process, we decomposed into A1, which shows implementation choosing technology restoration landscape from point view technical means, A2, examines several forestry descriptors, takes account specifics industry. As result simulation, A0, A2 were obtained, show structured image functions, objects connecting these functions.

Language: Английский

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How Can the Engineering Parameters of the NIR Grader Affect the Efficiency of Seed Grading?

Agriculture, Journal Year: 2022, Volume and Issue: 12(12), P. 2125 - 2125

Published: Dec. 10, 2022

The automated grading of Scots pine seeds in the near-infrared wavelength region (NIR grading) is a starting point for further actions, such as coating and priming. This reduces time financial costs increases accuracy seed viability classification compared to invasive techniques. NIR-based wave reflected from each must be detected processed with sufficient accuracy. To focus beam, we used fiber-optic Bragg grating, mirror, diffraction grating. For focusing option based on DOE matrix, one experiment 20 runs (n = 20) three replicas (m 3) run was conducted. In replica, 100 conditioned non-conditioned (NC + NNC 200) selected randomly five samples weighing 50 g seedlot 1 kg extracted cones collected natural tree stand. Three experiments were conducted NIR using an optoelectronic device. An adequate regression model efficiency function obtained. functions included following arguments: angle incidence optical seed, height pipeline. influence inclination light source relative plane movement quality prevails over other factors. allows separation according index, which important, since dead petrified (possibly up 25%) may occur batch, cannot eliminated by either size or mass. peak achieved combining average grader engineering parameters: 968–973 nm 44–46 degrees beam at pipe 0.18–0.23 m.

Language: Английский

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FLR-Library reference information system for adaptive forest restoration: cluster analysis of descriptors

Forestry Engineering Journal, Journal Year: 2023, Volume and Issue: 13(3), P. 164 - 179

Published: Dec. 27, 2023

The lack of uniform terminological and technological approaches to the procedure adaptive reforestation suggests justification principles creating a reference information system (FLR-Library), taking into account specifics implementing joint decomposed FLR algorithm reduce its execution time rational forecasting future forest landscape restoration projects. Collected analyzed more than 120 definitions for 30 descriptors, such as "forest", "forest landscapes", "adaptive reforestation", "concepts "reforestation", "afforestation", "stand", plantation", complex", landscape", "type forest" others. Both distinctive features common points in different countries authors same descriptor are found. Technically, an approach clustering most descriptors is implemented: "afforestation". To do this, each descriptor, based on hierarchical module, combination cluster recalibrated distances was determined diagram constructed «variables» (criteria effectiveness) «observations» (by containing source with descriptor). Common all sources will be that implies adaptation climate change, but then there two options development: 1) planting (sowing) breeds resistant change; 2) import "southern" northern latitudes. In future, analysis principle decomposition, it planned develop functioning system.

Language: Английский

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Growth dynamics of Pinus sylvestris L., Picea abies (L.) H.Karst. and Pinus sibirica Du Tour coniferous stands: modified model

Forestry Engineering Journal, Journal Year: 2024, Volume and Issue: 14(2), P. 54 - 69

Published: Aug. 30, 2024

Modification of the growth dynamics model total biomass forest stands is focused on using age physiological maturity (ripeness), which, as shown by previous calculations, a constant for each species: Pinus sylvestris L., Picea abies (L.) H.Karst. and sibirica Du Tour. Validation modified was carried out coniferous – spruce, pine cedar, biologically related. For P. sylvestris, an allometric parameter that characterizes relationship with area planting, does not depend class bonus species. The behavior rate resource consumption individual type. abies, this increases, decreases increasing bonus, sibirica, dependence turns to be nonlinear. In future, circumstance needs additional research. statistical Nash-Sutcliffe criterion showed high accuracy (by second site NSE = 0.9987 0.9828 0.9781 sibirica) model. Compared similar calculations do take into account maturity, quality has increased order magnitude. all types stands, relative deviation calculation from empirical data additionally calculated, which in general amounted 1-2%, exception ages lower than maturity. these ages, 5%, according authors, associated processes formation plantations ecological system.

Language: Английский

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Assessment of the forest seed material quality at the Scots pine (Pinus sylvestris L.) experimental site during adaptive restoration of forest landscapes

Forestry Engineering Journal, Journal Year: 2023, Volume and Issue: 13(1), P. 112 - 128

Published: May 16, 2023

When choosing a technology for restoring forest landscapes, the quality of seed material is significant factor. To develop reference information system to support decision-making adaptive restoration it necessary have data on types and material. Existing studies directly or indirectly confirm, one hand, influence future plantations, other characteristics quantity seeds. Preservation in conditions large-scale harvesting Scots pine seeds (Pinus sylvestris L.) possible with development permanent plots, (or) use modern technologies separating without loss genetic diversity increasing not only germination energy, but also vitality seedlings, their stability change abiotic factors. Descriptive statistics biometric parameters trees cones experimental site (N51°50.00'; E39°22.09', 113 m ASL) demonstrates following values (average; average error): height tree (186.2; 11.7), diameter root neck (5.9; 0.3), ratio (31.90; 0.97), number (9; 4), (12; 5). There strong positive correlation at level p < 0.0001 between height, (p 0.001), 0.05) cones. In future, planned evaluate relationship accumulated degree days, precipitation, normalized difference vegetation index number.

Language: Английский

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Software for managing of maintenance and repair system of forest machines: assessment of applicability

Forestry Engineering Journal, Journal Year: 2023, Volume and Issue: 13(2), P. 105 - 127

Published: Sept. 27, 2023

Modern enterprises of the forest complex are a sphere production, in which information technologies increasingly being introduced to increase efficiency. To improve efficiency maintenance and repair machines for forestry industries, it is necessary evaluate possibility using specialized software logging industries. compare functionality deployment capabilities, various programs domestic foreign manufacturers considered, used both automating work managing repair. A comparative assessment similarities differences products based on cluster analysis binary data interpreted by method intergroup relations Jac-card measure carried out. Due specifics (forest located at consid-erable distance from service base), order monitor technical condition, that ma-chines be equipped with diagnostic system transmission facilities. When choosing specific software, rely such parameters as size enterprise complex, its needs, financial capabilities. The should integrated into single space allows use digital twin’s technology.

Language: Английский

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The effect of the individual seed mass of Negorelskaya variety Scots pine (Pinus sylvestris L.) on 30-day germination in 40-cell SideSlit growing containers

Forestry Engineering Journal, Journal Year: 2023, Volume and Issue: 13(2), P. 59 - 86

Published: Sept. 27, 2023

The seeds germination of the Scots pine (Pinus sylvestris L.) is an important stage tree's life cycle and determines subsequent productivity survival, ultimately affecting composition plant community. Germination related to various biological characteristics seeds, including individual seed mass. amount endosperm nutrients contained in sound can determine energy available for germination. Experimental evidence influence mass on still quite small. To test technology planting material production with a closed root system, taking into account spectrometric morphometric features Negorelskaya variety each varietal (P. L.), three random sets 400 de-winged (N = 1200) were sown manually 40-mesh SideSlit containers automated forest nursery. hypothesis about varieties "Negorelskaya" indicators its 30th day, single-factor analysis variance was used check uniformity according Levene's criterion posteriori LSD averages. varied from 1.0 13.3 mg (m ± SD | 60.1 17.5 mg). average values index day 30 volume 6,8,12,16,18,26 statistically (Levene's 6.35, p 1.98e-22; ANOVA F-criterion 1.291, 0.0139; < 0.05) differ indicator 2,7,10,11,13,19,22,24,26,27,29 containers. 942 germinated cells nursery 11.317; 0.000792; 12.098; 0.000523) weight ungrown 258 L.). In future, this 50 comprehensive quality seedlings, DQI RQI, will be studied.

Language: Английский

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