Drvna Industrija最新文献

Assessment of Condition of Wooden Mill in Kovačevići Area in Bosnia and Herzegovina 波斯尼亚和黑塞哥维那科瓦切维奇地区木制磨坊状况评估

IF 1.1 4区农林科学

Drvna Industrija Pub Date : 2024-03-02 DOI: 10.5552/drvind.2024.0102

B. Lesar, Redžo Hasanagić, M. Bahmani, M. Humar

引用次数: 0

Efficiency Assessment Based on Data Envelopment Analysis for Occupational Accidents and Diseases in Furniture Industry of Turkey 基于数据包络分析法的土耳其家具业职业事故和职业病效率评估

IF 1.1 4区农林科学

Drvna Industrija Pub Date : 2024-03-02 DOI: 10.5552/drvind.2024.0136

Devrim Karademir

{"title":"Efficiency Assessment Based on Data Envelopment Analysis for Occupational Accidents and Diseases in Furniture Industry of Turkey","authors":"Devrim Karademir","doi":"10.5552/drvind.2024.0136","DOIUrl":"https://doi.org/10.5552/drvind.2024.0136","url":null,"abstract":"In this study, the provinces in which enterprises operate heavily in the Turkish furniture industrywere subjected to an efficiency assessment using the data envelopment analysis (DEA) method based on work accidentsand occupational diseases. The data related to the furniture industry was obtained from the Social Security Institution (SSI) and the Ministry of Labor and Social Security (MoLSS). The number of operating businesses and the number of employees insured in each province were evaluated as inputs for the analysis. The total number of workplace physicians and other health personnel in each province, the number of workplace physician and occupational safety centers and A, B, and C-class occupational health and safety specialists were used as outputs. The number of employees who experienced work accidents and occupational diseases, deaths resulting from work accidents and occupational diseases, total temporary disability periods, the number of beneficiaries, and the number of those receiving permanent disability income in each province were evaluated as undesirable outputs. The data was analyzed using the DEA method by modeling the undesired outputs in 6 different ways, and the efficiency of each province was determined. It was seen that Model 6 gave the most ideal results in DEA efficiency assessments. Aydın, Çanakkale, Diyarbakır, Eskişehir, Malatya, Muğla, Trabzon and Zonguldak were determined as the most effective provinces in terms of occupational health and safety. The results were evaluated along with the literature, and recommendations were presented.","PeriodicalId":11427,"journal":{"name":"Drvna Industrija","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2024-03-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140082267","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Water Permeability and Adhesion Strength of Bio-based Coating Applied on Wood 生物基涂料在木材上的透水性和粘合强度

IF 1.1 4区农林科学

Drvna Industrija Pub Date : 2024-03-02 DOI: 10.5552/drvind.2024.0118

D. Angelski, K. Atanasova

{"title":"Water Permeability and Adhesion Strength of Bio-based Coating Applied on Wood","authors":"D. Angelski, K. Atanasova","doi":"10.5552/drvind.2024.0118","DOIUrl":"https://doi.org/10.5552/drvind.2024.0118","url":null,"abstract":"The main task of wood manufacturers is to ensure the supply of safe wood products. In this respect, the use of plants as raw material for the wood coatings production is a sustainable alternative to fossil fuels, especially since innovative materials minimize the health and environmental risks of the final product over its entire lifespan. This paper presents a study of the water permeability of a water-borne bio-based coating applied to spruce (Picea abies), a study of the adhesion strength of the same coating applied to spruce (Picea abies), beech (Fagus sylvatica L.) and beech plywood, as well as a study of the adhesion strength on spruce after the water permeability test. The tests were performed according to EN 927-5:2006 and EN ISO 4624:2016. The roughness parameters were measured before and after the water permeability test. The coating was found to be hydrophobic but also water permeable. The highest value of adhesion strength was observed for beech surface, the lowest for spruce. The changes in the surface profiles after the water permeability test are insignificant. According to the water absorption criteria, this coating system could only be applied on exterior wood intended for end-use categores such as overlapping cladding, fencing, garden sheds, open cladding, and ventilated rain screen.","PeriodicalId":11427,"journal":{"name":"Drvna Industrija","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2024-03-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140081137","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Usporedna studija dimenzijske stabilnosti i biološke trajnosti kemijski i toplinski modificirane topolovine 化学和热改性热熔体的尺寸稳定性和生物稳定性的序列研究

IF 1.1 4区农林科学

Drvna Industrija Pub Date : 2024-03-02 DOI: 10.5552/drvind.2024.0097

Ajmal Samani, Sauradipta Ganguly, Sanjeet Kumar Hom, Varun Sharma

{"title":"Usporedna studija dimenzijske stabilnosti i biološke trajnosti kemijski i toplinski modificirane topolovine","authors":"Ajmal Samani, Sauradipta Ganguly, Sanjeet Kumar Hom, Varun Sharma","doi":"10.5552/drvind.2024.0097","DOIUrl":"https://doi.org/10.5552/drvind.2024.0097","url":null,"abstract":"The fast-growing species of Populus deltoides is of significant commercial importance to the Indian wood merchants. Despite its abundant availability and better treatability, the use of P. deltoides is limited due to its perishable nature. Heat treated and chemically modified Populus deltoides L. was thus explored for dimensional stability and biological durability to commercialise its use. Chemical modification was performed using a combination of citric acid and sodium hypophosphite. Heat treatment was done in a laboratory oven in air at 140 °C for 8h. Both chemically modified and heat-treated samples exhibited improvements in dimensional stability and biological durability in comparison to the untreated control sets. Chemical modification resulted in better dimensional stability. Anti-swelling efficiency of Populus deltoides was 2-2.5 times more for the chemically modified set compared to heat treatment in both radial and tangential directions. Chemically modified set became significantly more resistant to biodeterioration showing 5 times less mass loss by termites, whereas controls and heat-treated sets returned loss percentages which were comparable. Soil block bioassay with Trametes versicolor (TV) exhibited mass loss of 9.46 % for chemically modified samples, 40.26 % for heat treated samples and 50.02 % for the untreated controls, respectively. Rhodonia placenta (OP) followed a similar trend with mass loss of chemically modified set being 5.72 % and heat-treated set being 37 %, respectively, with the controls showing 43.85 % mass loss. Mass loss exhibited by the heat-treated samples were less than the controls, but the values suggested that heat treatment at 140 °C for 8 h failed to impart any substantial resistance against rotting fungi and termites.","PeriodicalId":11427,"journal":{"name":"Drvna Industrija","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2024-03-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140081780","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Bio-Durability and Engineering Characteristics of Heat-Treated Poplar Wood 热处理杨木的生物耐久性和工程特性

IF 1.1 4区农林科学

Drvna Industrija Pub Date : 2023-12-15 DOI: 10.5552/drvind.2023.0041

Seyedeh Masoomeh Zamani, R. Hajihassani, Saman Ghahri

引用次数: 0

Influence of Zinc Oxide Nanoparticles on Flame Resistance in Wood Plastic Composites 纳米氧化锌对木塑复合材料阻燃性的影响

IF 1.1 4区农林科学

Drvna Industrija Pub Date : 2023-12-15 DOI: 10.5552/drvind.2023.0132

Sefa Durmaz, Ugur Aras, Erkan Avci, Y. Z. Erdil, Ilkay Atar, H. Kalaycioğlu

{"title":"Influence of Zinc Oxide Nanoparticles on Flame Resistance in Wood Plastic Composites","authors":"Sefa Durmaz, Ugur Aras, Erkan Avci, Y. Z. Erdil, Ilkay Atar, H. Kalaycioğlu","doi":"10.5552/drvind.2023.0132","DOIUrl":"https://doi.org/10.5552/drvind.2023.0132","url":null,"abstract":"The interest in wood plastic composites (WPCs) has increased in recent years. The utilization of environmentally friendly materials has been of great significance due to the overwhelming pressure on nature. As a widely used material, plastic is, however, easily combustible due to its structure. In this study, WPCs were reinforced with zinc oxide (ZnO) nanoparticles. The effect of higher content of ZnO nanoparticles (1, 3, 5, 10 %) on WPCs thermal stability and fire performance was investigated. Thermogravimetric analysis (TGA) clearly demonstrated that nanoparticles acted as a shield, which inhibited heat transfer and increased the degradation temperature thanks to covering the surface of materials. Free radicals accelerated the thermal degradation of neat-HDPE (high-density polyethylene) by oxidative reactions, while ZnO nanoparticles reduced the degradation velocity. Moreover, the increase in nanoparticle content significantly affected the residue. The fire performance of WPCs was also investigated by the limit oxygen index (LOI) test. While neat-HDPE flamed with dripping, ZnO nanoparticles made flaming difficult for WPCs. Therefore, the LOI values increased with increasing nanoparticle content up to 28.5 %, which indicated the need for more oxygen. The improvement reached up to 54 % compared to neat HDPE. Moreover, the char forming was also improved, which helped enhance the fire resistance. The scanning electron microscope (SEM) investigation indicated that nanoparticles were well dispersed in the matrix. However, the tendency to agglomerate increased with the increase of concentration. The ability of carbonization of wood fiber surface during the combustion also contributed to improving thermal stability and fire performance.","PeriodicalId":11427,"journal":{"name":"Drvna Industrija","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2023-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139000241","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effect of Epoxy Resin Reinforcement on Screw Withdrawal Strength of Fiberboard and Particleboard Used in Furniture Industry 环氧树脂加固对家具业所用纤维板和刨花板螺钉抽出强度的影响

IF 1.1 4区农林科学

Drvna Industrija Pub Date : 2023-12-15 DOI: 10.5552/drvind.2023.0146

Mesut Uysal, Cagatay Tasdemir, Dogan Memis

{"title":"Effect of Epoxy Resin Reinforcement on Screw Withdrawal Strength of Fiberboard and Particleboard Used in Furniture Industry","authors":"Mesut Uysal, Cagatay Tasdemir, Dogan Memis","doi":"10.5552/drvind.2023.0146","DOIUrl":"https://doi.org/10.5552/drvind.2023.0146","url":null,"abstract":"The study aimed to increase the screw withdrawal strength of medium density fiberboard and particleboard used in furniture strength by using epoxy resin in the screw pilot hole. Therefore, the effects of pilot hole diameters, screw diameter, and amount of epoxy resin on screw withdrawal strength of medium density fiberboard and particleboard from face and edge were investigated. According to TS EN 13446, 50 mm × 50 mm specimens were cut from commercial medium density fiberboard and particleboard boards. A static load was applied parallel to the screw direction. The screw withdrawal strength of medium density fiberboard was higher than the screw withdrawal strength of particleboard because of its density. Besides, the screw withdrawal strength of medium density fiberboard and particleboard samples with a 3.5 mm screw diameter was higher compared to those with a 4.5 mm screw diameter. A decrease in pilot hole diameter and an increase in the amount of epoxy resin provided higher screw withdrawal strength of materials. Using 20 % epoxy resin of the volume of the pilot hole resulted in two times better screw withdrawal strength values. The study showed that a higher amount of epoxy resin, smaller pilot hole diameter, and smaller screw diameter contribute to better screw withdrawal strength of both medium density fiberboard and particleboard from the face and edge.","PeriodicalId":11427,"journal":{"name":"Drvna Industrija","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2023-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138998945","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Modeliranje dizajna boje površine namještaja CNC laserskom modifikacijom 对 Namješt'a 浮标的表面设计进行数控激光修改建模

IF 1.1 4区农林科学

Drvna Industrija Pub Date : 2023-12-15 DOI: 10.5552/drvind.2023.0096

Cebrail Açik

{"title":"Modeliranje dizajna boje površine namještaja CNC laserskom modifikacijom","authors":"Cebrail Açik","doi":"10.5552/drvind.2023.0096","DOIUrl":"https://doi.org/10.5552/drvind.2023.0096","url":null,"abstract":"Today, handcrafted furniture surface treatment techniques are less used due to application difficulties and high costs. Recently, the use of CNC router processing machines has resulted in a revival of these techniques. However, since this method is insufficient in micro-processes and color modifications that require precision, these processes have started to be performed with lasers. In this research, the beech wood surface was processed using a CNC laser processing machine with a carbon dioxide gas tube by applying different engraving power and engraving speeds. Product design and manufacturing parameters were determined in the CIE L*a*b* color system using the regression modeling method. A sample application was made by applying laser engraving to a furniture surface designed according to the obtained parameters. As a result of the study, it has been explained that using L* color group regression modeling method and CAD/CAM supported laser technology in furniture top surface color design processes is suitable for industrial engineering approach. It has been determined that many surface color design techniques can be applied with laser to furniture designed for CNC laser production.","PeriodicalId":11427,"journal":{"name":"Drvna Industrija","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2023-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138998792","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Timber Strength Grading as Necessary Basis for Structural Design in Ex-YU Region 木材强度分级是前乌克兰地区结构设计的必要基础

IF 1.1 4区农林科学

Drvna Industrija Pub Date : 2023-12-15 DOI: 10.5552/drvind.2023.0105

T. Kočetov Mišulić, Aleksandra Radujković, Zdravko Popović, Ksenija Hiel

{"title":"Timber Strength Grading as Necessary Basis for Structural Design in Ex-YU Region","authors":"T. Kočetov Mišulić, Aleksandra Radujković, Zdravko Popović, Ksenija Hiel","doi":"10.5552/drvind.2023.0105","DOIUrl":"https://doi.org/10.5552/drvind.2023.0105","url":null,"abstract":"Classification of timber for various commercial purposes is essential for its proper application in order to ensure the reliability and economic use. Visual grading of structural timber is commonly used in a number of EU countries, with different grading national standards optimized for locally available wood. Countries in the ex-YU region are traditional partners in wood trade and had the same standards for visual grading, but in most of the regions these standards are not completely compliant with EN requirements. Consequently, that leads to the fact that the most of regionally available structural timber is not assigned into strength classes, which is the starting point for the limit-state concept in design of timber structures. The aim of this paper is to emphasize the lack of strength classification of structural timber in the ex-YU region, which is a prerequisite for the design of timber structures made by civil engineers. Based on an overview of visual classification types with regional experience in grading, relevant EN standards, and differences in design concepts with possible consequences of grading approach, it can be concluded that “quality” grades and “strength” classes are not easily comparable.","PeriodicalId":11427,"journal":{"name":"Drvna Industrija","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2023-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138970714","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Intenzitet toplinske modifikacije topolovine. Dio 1 热电堆的热修正强度。Dio 1

IF 1.1 4区农林科学

Drvna Industrija Pub Date : 2023-12-15 DOI: 10.5552/drvind.2023.0125

Yang Li, Tao Yao, Yong Zhu, Zuju Shu, Shengquan Liu, Redžo Hasanagić, Fathi Leila, Demiao Chu

{"title":"Intenzitet toplinske modifikacije topolovine. Dio 1","authors":"Yang Li, Tao Yao, Yong Zhu, Zuju Shu, Shengquan Liu, Redžo Hasanagić, Fathi Leila, Demiao Chu","doi":"10.5552/drvind.2023.0125","DOIUrl":"https://doi.org/10.5552/drvind.2023.0125","url":null,"abstract":"Wood heat treatment is an environmentally friendly method, and the heat-treated wood properties are closely related to thermal modification intensity. This study focuses on the 0-3 mm surface layer (SL) of poplar wood heat treated at 160~220 °C. The modification intensity, including surface color, hardness, chemical component and morphological changes of the SL, was evaluated. The findings of this research showed that the color difference of the poplar wood before and after heat treatment (ΔE*1) increased; the color difference between up-surface and down-surface of the SL (ΔE*2) also increased with the treatment temperature. Consequently, the surface hardness (HR) decreased with the increase of treatment intensity. When the treatment temperature was higher than 160 °C, the up-surface and down-surface of the SL were statistically different in color. Chemical component analysis revealed that the heat treatment degrades wood components, especially the hemicellulose, and correlation analysis showed a significant correlation between the change rate of hemicellulose and the ΔE*1 or HR value; the prediction functions have been established at a high confidence level of 0.99. Overall, the thermal modification intensity of the heat-treated surface layer (SL) of poplar wood varies, and the HR and ΔE*1 value could be used to characterize and predict the modification intensity and degree of thermal degradation of the surface layer of heat-treated poplar wood.","PeriodicalId":11427,"journal":{"name":"Drvna Industrija","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2023-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138996277","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0