Neka fizikalna i mehanička svojstva drva šljive (Prunus Domestica L.)

Govorčin, Slavko; Sinković, Tomislav; Sedlar, Tomislav; Ištok, Iva; Vukadin, Marinko

doi:10.5552/drind.2012.1207

Cited by 5 publications

(3 citation statements)

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“…These results indicated that the zone of the juvenile wood from the aspect of the oven-dry density spreads up to the 60 th annual ring from pith to bark. This conclusion does not correspond to the results found in literature (Govorčin et al 1998;Zobel and Sprague 1998;Koubaa et al 2005;Alteyrac et al 2006;Mvolo et al 2015;Sedlar et al 2019) Bending strength is one of the most important mechanical properties of wood that determines the usefulness of wood, especially from the aspect of the position of wood from pith to bark. The differences in the static bending strength values from pith to bark are significant.…”

Section: Fig 2 Distribution Of Oven-dry Density In the Radial Directi...contrasting

confidence: 57%

“…The difference in the results of these two types of research samples is substantial, and it can influence the variability of the obtained results. In analyzing the samples from trees to obtain the distribution of properties in the radial direction, the variability of the results will be significantly greater because of the nature of forming wood cells in the tree in the radial direction (Govorčin et al 1998(Govorčin et al , 2003. Therefore, it is necessary to consider the juvenile, mature, and overmature phases of tree growth.…”

Section: Introductionmentioning

confidence: 99%

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Interpreting research results for the physical and mechanical properties of wood: An approach not dependent on a juvenile/mature wood boundary

Sinković

Jambreković

Sedlar

2021

BioRes

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The interpretation and presentation of research on the physical and mechanical properties of wood in the radial direction is important for the estimation of technological properties in primary wood processing. It is common practice to define the boundary between the juvenile and mature wood zone of tree growth because of the differences in wood properties in these two zones. The juvenile and mature wood zones can be determined statistically based on the significance of the difference in the properties in a particular zone. This paper presents the insufficiency in the statistical determination of the boundary between juvenile and adult wood. Such limitations detract from the potential value and technological exploitation of wood as raw material. Statistical tests yielded zones that were too wide for the transition of juvenile wood to mature wood. Representations of the distribution of properties in the radial direction also complement the knowledge for assessing the technological properties based on the researched use of the presentation of polynomials of the second degree and the display of the Tukey HSD test in the form of comparison tables. The graphical representations by groups of the tested annual rings of fir wood also help to assess the technological properties.

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Section: Fig 2 Distribution Of Oven-dry Density In the Radial Directi...contrasting

confidence: 57%

Section: Introductionmentioning

confidence: 99%

Interpreting research results for the physical and mechanical properties of wood: An approach not dependent on a juvenile/mature wood boundary

Sinković

Jambreković

Sedlar

2021

BioRes

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“…These species were evidenced to have good wood hardness, strength, and elasticity properties. For example, Grewia bicolor and O. europaea have good wood hardness, strength, and specific weight, which make them well-placed for traditional plowing implements and hence ideal candidates for agricultural farming equipment (Govorčin et al 2010;Ruffo et al 2002).…”

Section: Farm Implementsmentioning

confidence: 99%

Diversity and role of woody non-timber forest products in Doba District, Eastern Ethiopia

Abebaw

Damme

2023

Nusantara Biosci

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Abstract. Abebaw AF, Damme PV. 2023. Diversity and role of woody non-timber forest products in Doba District, Eastern Ethiopia. Nusantara Bioscience 15: 38-47. Non-Timber Forest Products (NTFP) play a pivotal role as local sources of medicine, household paraphernalia, and fodder and offer income opportunities that can mitigate poverty. This study was conducted in Doba District, West Hararghe Zone, Eastern Ethiopia, to analyze the diversity and economic contribution of non-timber forest products. Both ethnobotanical and vegetation data were cross-sectionally collected from February 2020 up to June 2021. A total of 422 informants selected randomly from forest inhabitants were interviewed using semi-structured questionnaires to explore NTFP utilization and their economic contributions. Vegetation data were collected from 56 sample plots of each 20m x 20m (400m2) along transects lines. Vegetation data collected were analyzed for the relative density of species, Shannon-Wiener index, species evenness, and relative frequency. From the household survey, 58 plant species categorized in 55 genera and 35 families were identified as NTFP-bearing species. Analysis of the socio-economic data shows that NTFP collection is a day-to-day activity of the local communities. These communities use NTFPs in different types of use categories, namely medicinal plants (32, 55.17%), melliferous species (20, 34.48%), wild food and condiment species (22, 37.93%), farm implements (7, 12.06%), wood and flavoring (6, 10.34%), source of energy (20, 35.71%), and household utensils and construction materials (30, 51.72%). The market survey analysis showed that NTFPs account for about 15.77% of the annual household income. The vegetation survey showed that Ades Forest has a good status with an average density of 1,450 plants ha-1, high Shannon-Wiener index (H =3.299), and species evenness (E = 0.81). Ades Forest harbors a diverse number of NTFP-bearing species used for several categories. The study reveals the real experiences of the local communities in utilizing NTFPs for their livelihood. Forest dependency rates tend to be higher among poor households. However, further study on production potential and market chain analysis should be done together with awareness creation activities to get a sustainable product for the community and conserve the forest resource.

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Simulation analysis of the circular sawing process of medium density fiberboard (MDF) based on the Johnson–Cook model

Yu,

Wang,

et al. 2023

Eur. J. Wood Prod.

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Neka fizikalna i mehanička svojstva drva šljive (Prunus Domestica L.)

Abstract: Neka fizikalna i mehani~ka svojstva drva {ljive (Prunus Domestica L.) Some Physical and Mechanical Properties of Plum Tree (Prunus Domestica L.) Prispjelo -received: 27. 2. 2012. Prihvaćeno -accepted: 15. 11. 2012 674.031.734.4 doi:10.5552/drind.2012 Stručni rad • Professional paper

Cited by 5 publications

References 0 publications

Interpreting research results for the physical and mechanical properties of wood: An approach not dependent on a juvenile/mature wood boundary

Interpreting research results for the physical and mechanical properties of wood: An approach not dependent on a juvenile/mature wood boundary

Diversity and role of woody non-timber forest products in Doba District, Eastern Ethiopia

Simulation analysis of the circular sawing process of medium density fiberboard (MDF) based on the Johnson–Cook model

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