Social responsibility has emerged within the scope of the efforts of enterprises to protect and increase the welfare of society as well as their own benefits. Social responsibility projects have also taken an important place among current public relations activities in terms of contributing positively to the image of the institutions. Today, organizations carry out social responsibility projects on various issues, from economic development to public health, from education to sports. Undoubtedly, the nature and environment-oriented projects have become increasingly widespread in recent years. Afforestation activities are also included in this scope. The study aims to provide information about social responsibility projects on afforestation studies and evaluate the content of these studies. In this context, the “81 Forests in 81 Cities” project realized by Türkiye İş Bankası was chosen as the sample case. This project was selected because it is the most comprehensive one in Turkey, covering a large area and long duration. In the study, the structured interview technique was used as the essential data collection method, and questions on the aims and process of the project and the results achieved were taken place. The data were evaluated qualitatively. In the light of the findings, the necessity of carrying out activities on raising awareness of the target audience, using appropriate planting techniques, and maintaining replacement planting and stand tending activities have emerged in such studies. It is clear that social responsibility projects that can be carried out in both afforestation and other areas of forestry will have a positive reflection on the enterprises that carry out and support the project, as well as make significant contributions to the society in terms of environmental, social, economic and cultural aspects. At this point, it is vital to support the creation of ideas for social responsibility projects related to nature and forestry and to develop incentives.
社会责任在企业保护和增加社会福利以及自身利益的努力范围内出现。社会责任项目在当前的公共关系活动中也占据了重要的位置，为机构的形象做出了积极贡献。今天，组织在各种问题上开展社会责任项目，从经济发展到公共卫生，从教育到体育。毫无疑问，近年来，以自然和环境为导向的项目越来越普遍。植树造林活动也包括在这一范围内。本研究旨在提供社会责任造林研究项目的信息，并对这些研究的内容进行评价。在此背景下，选择了 rkiye İş bankasyi公司实现的“81座城市的81座森林”项目作为样本案例。之所以选择这个项目，是因为它是土耳其最全面的项目，占地面积大，工期长。在研究中，采用结构化访谈技术作为基本数据收集方法，并对项目的目标和过程以及取得的结果进行了提问。对数据进行定性评价。根据调查结果，在这些研究中，有必要开展提高目标受众认识的活动，使用适当的种植技术，并保持替代种植和林分照料活动。显然，既可以在造林领域开展，也可以在林业其他领域开展的社会责任项目，将对开展和支持项目的企业产生积极的影响，并在环境、社会、经济和文化等方面对社会做出重大贡献。在这一点上，至关重要的是支持有关自然和林业的社会责任项目的创意，并制定奖励措施。
{"title":"The afforestation activities carried out for the purpose of social responsibility: a case study","authors":"Seçil Yurdakul Erol, Burcu Göy","doi":"10.17568/ogmoad.1091023","DOIUrl":"https://doi.org/10.17568/ogmoad.1091023","url":null,"abstract":"Social responsibility has emerged within the scope of the efforts of enterprises to protect and increase the welfare of society as well as their own benefits. Social responsibility projects have also taken an important place among current public relations activities in terms of contributing positively to the image of the institutions. Today, organizations carry out social responsibility projects on various issues, from economic development to public health, from education to sports. Undoubtedly, the nature and environment-oriented projects have become increasingly widespread in recent years. Afforestation activities are also included in this scope. The study aims to provide information about social responsibility projects on afforestation studies and evaluate the content of these studies. In this context, the “81 Forests in 81 Cities” project realized by Türkiye İş Bankası was chosen as the sample case. This project was selected because it is the most comprehensive one in Turkey, covering a large area and long duration. In the study, the structured interview technique was used as the essential data collection method, and questions on the aims and process of the project and the results achieved were taken place. The data were evaluated qualitatively. In the light of the findings, the necessity of carrying out activities on raising awareness of the target audience, using appropriate planting techniques, and maintaining replacement planting and stand tending activities have emerged in such studies. It is clear that social responsibility projects that can be carried out in both afforestation and other areas of forestry will have a positive reflection on the enterprises that carry out and support the project, as well as make significant contributions to the society in terms of environmental, social, economic and cultural aspects. At this point, it is vital to support the creation of ideas for social responsibility projects related to nature and forestry and to develop incentives.","PeriodicalId":32505,"journal":{"name":"Ormancilik Arastirma Dergisi","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67632508","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Magnolia kobus native to Japan is a small tree-shaped plant from the Magnoliaceae family, which sheds its leaves in winter, about 10 m tall and has a round form. It is one of the plants preferred in Landscape Architecture planting designs with its form, aromatic leaves, abundantly blooming pinkish-white flowers and fruit beauty. It is very effective in groups or solitary use. It is resistant to urban climate and cold. In this study, our aim is to encourage the use of this plant, which is valuable with its aesthetic properties, by propagation with cutting production in the urban landscape. Within the scope of the study, the production technique with mild cutting, which is one of the vegetative production techniques, was used. In this current study, the effect of different hormone applications on the rooting success of softwood cuttings of Magnolia kobus was investigated. 0 (control), 3000, 5000 and 8000 ppm doses of hormones IBA (Indol-3-butyric acid), IAA (Indole-3-acetic acid) and NAA (Naphthalene acetic acid) were applied to the cuttings. Cuttings were planted in perlite medium under greenhouse conditions (20±2 ºC air temperature, 25±2 ºC rooting table lower temperature, 70±2% humidity). After about 4 months, the cuttings were removed and the rooting rate (%) and root lengths (cm) were determined. As a result of the study, the highest rooting percentage (60%) was seen in cuttings treated with 8000 ppm dose of IBA hormone. The highest root length values in cuttings were determined in cuttings treated with IAA 3000 ppm and 5000 ppm doses. According to the results of analysis of variance, it was determined that hormone applications had a significant effect on rooting (P: 0.000 ˂ 0.05). This study was supported by Karadeniz Technical University Scientific Research Projects Unit (Project no: 9733).
{"title":"Effect of different hormone doses on propagation by softwood cutting of Magnolia kobus","authors":"Müberra Pulatkan, Elif Kaya Şahin","doi":"10.17568/ogmoad.1094961","DOIUrl":"https://doi.org/10.17568/ogmoad.1094961","url":null,"abstract":"Magnolia kobus native to Japan is a small tree-shaped plant from the Magnoliaceae family, which sheds its leaves in winter, about 10 m tall and has a round form. It is one of the plants preferred in Landscape Architecture planting designs with its form, aromatic leaves, abundantly blooming pinkish-white flowers and fruit beauty. It is very effective in groups or solitary use. It is resistant to urban climate and cold. In this study, our aim is to encourage the use of this plant, which is valuable with its aesthetic properties, by propagation with cutting production in the urban landscape. Within the scope of the study, the production technique with mild cutting, which is one of the vegetative production techniques, was used. In this current study, the effect of different hormone applications on the rooting success of softwood cuttings of Magnolia kobus was investigated. 0 (control), 3000, 5000 and 8000 ppm doses of hormones IBA (Indol-3-butyric acid), IAA (Indole-3-acetic acid) and NAA (Naphthalene acetic acid) were applied to the cuttings. Cuttings were planted in perlite medium under greenhouse conditions (20±2 ºC air temperature, 25±2 ºC rooting table lower temperature, 70±2% humidity). After about 4 months, the cuttings were removed and the rooting rate (%) and root lengths (cm) were determined. As a result of the study, the highest rooting percentage (60%) was seen in cuttings treated with 8000 ppm dose of IBA hormone. The highest root length values in cuttings were determined in cuttings treated with IAA 3000 ppm and 5000 ppm doses. According to the results of analysis of variance, it was determined that hormone applications had a significant effect on rooting (P: 0.000 ˂ 0.05). This study was supported by Karadeniz Technical University Scientific Research Projects Unit (Project no: 9733).","PeriodicalId":32505,"journal":{"name":"Ormancilik Arastirma Dergisi","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67632215","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
In this study, the effects of microwave treatment on the gloss properties of varnishes of wood species, which are commercially important in our country, were investigated. For wood material surface treatments, many methods have been developed in the field of application, as well as using a large number of surface treatment materials. It is very important to determine the interaction between wood and surface treatment agents, to improve wood properties and to determine their suitability for different usage areas. For this purpose, 3 different tree species; Leafy tree species Eastern Beech (Fagus Orientalis Lipsky.) and Bearded Alder (Alnus glutinosa subsp. Barbata (C.A. Mey.) Yalt.) and coniferous Eastern Spruce (Picea Orientalis L. (Link.)) and cellulosic varnish from varnish species , polyurethane varnish was used. Trial samples were prepared in the specified dimensions and examinations were made about the gloss on the samples. When the gloss values parallel to the fibers and perpendicular to the fibers are examined for cellulosic varnish, Beech wood has the lowest gloss value, while the highest gloss is determined in Alder wood. For polyurethane varnish, no difference was found when wood species were considered on gloss in both perpendicular and parallel directions to the fibers. As a process type, 90 seconds microwave showed a negative effect for polyurethane varnish. It was determined that 90 seconds of microwave application decreased the brightness values in tree species. As a result; It was determined that microwave application affects the gloss properties of varnishes.
本文研究了微波处理对我国具有重要商业价值的木材清漆光泽性能的影响。对于木材材料的表面处理，已经发展出许多方法在应用领域，以及使用了大量的表面处理材料。确定木材与表面处理剂之间的相互作用，以改善木材的性能，并确定它们在不同使用领域的适用性是非常重要的。为此，有3种不同的树种;叶树种东方山毛榉(Fagus Orientalis Lipsky.)和胡子杨(Alnus glutinosa subsp.)。芭芭塔(c.a.m ey)(Yalt.)和针叶东方云杉(Picea Orientalis L. (Link.))和纤维素清漆来自清漆品种，使用聚氨酯清漆。在规定的尺寸上制备了试验样品，并对样品的光泽度进行了检查。当检查纤维清漆的光泽值平行于纤维和垂直于纤维时，山毛榉木的光泽值最低，而桤木的光泽值最高。对于聚氨酯清漆，当考虑木材种类在垂直和平行方向上的光泽度时，没有发现差异。作为一种工艺类型，90秒微波对聚氨酯清漆表现出负面影响。结果表明，微波照射90秒会使树种的亮度值降低。结果;研究了微波处理对清漆光泽度的影响。
{"title":"The effect of microwave treatment on the gloss resistance of varnishes in some tree species","authors":"Çiğdem Kasa, Özlem BOZDOĞAN BALÇIK, Turgay Özdemir","doi":"10.17568/ogmoad.1088908","DOIUrl":"https://doi.org/10.17568/ogmoad.1088908","url":null,"abstract":"In this study, the effects of microwave treatment on the gloss properties of varnishes of wood species, which are commercially important in our country, were investigated. For wood material surface treatments, many methods have been developed in the field of application, as well as using a large number of surface treatment materials. It is very important to determine the interaction between wood and surface treatment agents, to improve wood properties and to determine their suitability for different usage areas. For this purpose, 3 different tree species; Leafy tree species Eastern Beech (Fagus Orientalis Lipsky.) and Bearded Alder (Alnus glutinosa subsp. Barbata (C.A. Mey.) Yalt.) and coniferous Eastern Spruce (Picea Orientalis L. (Link.)) and cellulosic varnish from varnish species , polyurethane varnish was used. Trial samples were prepared in the specified dimensions and examinations were made about the gloss on the samples. When the gloss values parallel to the fibers and perpendicular to the fibers are examined for cellulosic varnish, Beech wood has the lowest gloss value, while the highest gloss is determined in Alder wood. For polyurethane varnish, no difference was found when wood species were considered on gloss in both perpendicular and parallel directions to the fibers. As a process type, 90 seconds microwave showed a negative effect for polyurethane varnish. It was determined that 90 seconds of microwave application decreased the brightness values in tree species. As a result; It was determined that microwave application affects the gloss properties of varnishes.","PeriodicalId":32505,"journal":{"name":"Ormancilik Arastirma Dergisi","volume":"5 12 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67632558","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Due to the increase in the world population, the use of forest products has become widespread. However, meeting the increasing need for forest products without endangering the ecosystem will be the most important issue to be considered. In this respect, increasing the use of wood materials obtained from forests is among the subjects of interest of researchers. With this study, it is aimed to increase the useful life of the alder tree, which has a wide distribution area in our country, and to bring it to industrial areas. Alder (Alnus glutinosa) is abundant in the Black Sea region, but has no industrial value. Impregnated camellias obtained from Scots pine (Pinus sylvestris L.) wood, which is frequently used in industry, were used as reference product. Camellias prepared from alder and yellow pine impregnated with Tanalith E and Celcure AC 500 were exposed to the external environment. The biological strength of the samples (Coniophora puteana and Poria placenta) and washing mechanism were investigated. The rot test was carried out according to the EN 113 standard, the washing test was carried out according to the AWPA E11 standard. Washed water samples were subjected to copper analysis with ICP-MS device. According to the results obtained, the weight loss of the impregnated wood material in the rot test was much lower than the control groups. The lowest washing and copper rates were obtained from Scotch pine wood.
由于世界人口的增加，林产品的使用已变得广泛。然而，在不危及生态系统的情况下满足对林产品日益增长的需求将是需要考虑的最重要问题。在这方面，增加使用从森林获得的木材材料是研究人员感兴趣的课题之一。本研究旨在提高我国分布广泛的桤木的使用寿命，并将其引入工业领域。桤木(Alnus glutinosa)在黑海地区资源丰富，但没有工业价值。从工业上经常使用的苏格兰松(Pinus sylvestris L.)木材中提取的浸渍茶花作为参比产品。用Tanalith E和Celcure AC 500浸渍桤木和黄松制备山茶。对两种样品的生物强度及洗涤机理进行了研究。腐烂试验按en113标准进行，洗涤试验按AWPA E11标准进行。水洗水样用ICP-MS仪进行铜分析。结果表明，浸渍木材料在腐烂试验中的失重量远低于对照组。苏格兰松木的洗涤率和含铜率最低。
{"title":"Biological Resistance and Leaching Mechanism of Alder Camellias Prepared by Impregnation with Tanalith E and Celcure AC500","authors":"Serkan Kilinc, A. Temiz, Gaye Köse Demirel","doi":"10.17568/ogmoad.1095156","DOIUrl":"https://doi.org/10.17568/ogmoad.1095156","url":null,"abstract":"Due to the increase in the world population, the use of forest products has become widespread. However, meeting the increasing need for forest products without endangering the ecosystem will be the most important issue to be considered. In this respect, increasing the use of wood materials obtained from forests is among the subjects of interest of researchers. With this study, it is aimed to increase the useful life of the alder tree, which has a wide distribution area in our country, and to bring it to industrial areas. Alder (Alnus glutinosa) is abundant in the Black Sea region, but has no industrial value. Impregnated camellias obtained from Scots pine (Pinus sylvestris L.) wood, which is frequently used in industry, were used as reference product. Camellias prepared from alder and yellow pine impregnated with Tanalith E and Celcure AC 500 were exposed to the external environment. The biological strength of the samples (Coniophora puteana and Poria placenta) and washing mechanism were investigated. The rot test was carried out according to the EN 113 standard, the washing test was carried out according to the AWPA E11 standard. Washed water samples were subjected to copper analysis with ICP-MS device. According to the results obtained, the weight loss of the impregnated wood material in the rot test was much lower than the control groups. The lowest washing and copper rates were obtained from Scotch pine wood.","PeriodicalId":32505,"journal":{"name":"Ormancilik Arastirma Dergisi","volume":"17 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67632273","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Ebru Hatice TIĞLI KAYTANLIOĞLU, M. Negiz, S. Gülsoy, H. Fakir
This study was carried out to classify woody vegetation in Gölcük Nature Park. Vegetation classification provides important information on sustainable forestry and biodiversity. In the study, 25 sampling areas with the dimensions of 20x20 meters were taken with the land inventory. For each sampling area, woody plant taxa and habitat characteristics were recorded in the inventory book. Multiple permutation test (MRPP) was applied in order to determine the most suitable of the groups obtained from the cut-off levels by cluster analysis. Indicator plant analysis was applied in order to determine the indicator plant species of the most effective vegetation group separation by the multiple permutation test. Pearson correlation analysis was applied to reveal the relationships between alpha diversity index values and environmental factors. Pinus nigra, Rosa canina, Populus nigra subsp. caudina and Malus sylvestris subsp. sylvestris were determined to be the most common species in the study area. In the study, the most appropriate vegetation classification was obtained in 3 groups. As a result of the mentioned statistical analyzes, it was determined that aspect differences are important in the formation of the most suitable vegetation group separations. The result obtained was supported by the determination that the species diversity in the region is higher in southern aspects compared to northern aspects.
{"title":"Classification of Woody Vegetation in Gölcük Nature Park (Isparta)","authors":"Ebru Hatice TIĞLI KAYTANLIOĞLU, M. Negiz, S. Gülsoy, H. Fakir","doi":"10.17568/ogmoad.1075675","DOIUrl":"https://doi.org/10.17568/ogmoad.1075675","url":null,"abstract":"This study was carried out to classify woody vegetation in Gölcük Nature Park. Vegetation classification provides important information on sustainable forestry and biodiversity. In the study, 25 sampling areas with the dimensions of 20x20 meters were taken with the land inventory. For each sampling area, woody plant taxa and habitat characteristics were recorded in the inventory book. Multiple permutation test (MRPP) was applied in order to determine the most suitable of the groups obtained from the cut-off levels by cluster analysis. Indicator plant analysis was applied in order to determine the indicator plant species of the most effective vegetation group separation by the multiple permutation test. Pearson correlation analysis was applied to reveal the relationships between alpha diversity index values and environmental factors. Pinus nigra, Rosa canina, Populus nigra subsp. caudina and Malus sylvestris subsp. sylvestris were determined to be the most common species in the study area. In the study, the most appropriate vegetation classification was obtained in 3 groups. As a result of the mentioned statistical analyzes, it was determined that aspect differences are important in the formation of the most suitable vegetation group separations. The result obtained was supported by the determination that the species diversity in the region is higher in southern aspects compared to northern aspects.","PeriodicalId":32505,"journal":{"name":"Ormancilik Arastirma Dergisi","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67632440","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
In the study, mechanical pulp-based (newspaper) papers were used as raw material, and water-based Firetex (stone water) commercial product was used as fire retardant. Waste papers were refibrilled in the pulper and recycled with the rapid-köthen machine. Firetex was applied to the papers at 25%, 50%, 75% and 100% concentrations by immersing method. The thermal, mechanical and optical properties of the test papers produced within the scope of the study were measured and optimized. In the study, as a result of the thermogravimetric (TGA) analyzes of the test samples, it was determined that the carbonization and residue amount increased significantly with the increased Firetex ratio. It was determined that the limit oxygen index (LOI) values of the samples also increased with the increasing Firetex ratio, the LOI value of 26 accepted as the standard with 50% concentration was exceeded, and the device limits were exceeded in the samples treated with 100% fire retardant. In the study, the strength properties of the test papers were also measured. It has been determined that the increased Firetex ratio improves the resistance against burning, while reducing the tensile and tearing resistance. The best strength values were obtained with the solution containing 25% Firetex, but the strength values of the samples treated with the solution containing 50% Firetex were also close to the control levels. The resistance values of the samples treated with 75% and 100% Firetex were measured far below the standards. In addition, although it is not very effective in terms of newsprint, it was determined that the increased Firetex ratio also increased the yellowness of the papers. As a result of the study, when the LOI and strength values are considered together, the most suitable Firetex concentration for waste newspaper was determined as 50%.
{"title":"Determination of thermal, physical, optical and mechanical properties of waste papers prepared by adding Firetex","authors":"Emrah Peşman, Ezgi Ci̇vi̇l","doi":"10.17568/ogmoad.1094501","DOIUrl":"https://doi.org/10.17568/ogmoad.1094501","url":null,"abstract":"In the study, mechanical pulp-based (newspaper) papers were used as raw material, and water-based Firetex (stone water) commercial product was used as fire retardant. Waste papers were refibrilled in the pulper and recycled with the rapid-köthen machine. Firetex was applied to the papers at 25%, 50%, 75% and 100% concentrations by immersing method. The thermal, mechanical and optical properties of the test papers produced within the scope of the study were measured and optimized. In the study, as a result of the thermogravimetric (TGA) analyzes of the test samples, it was determined that the carbonization and residue amount increased significantly with the increased Firetex ratio. It was determined that the limit oxygen index (LOI) values of the samples also increased with the increasing Firetex ratio, the LOI value of 26 accepted as the standard with 50% concentration was exceeded, and the device limits were exceeded in the samples treated with 100% fire retardant. In the study, the strength properties of the test papers were also measured. It has been determined that the increased Firetex ratio improves the resistance against burning, while reducing the tensile and tearing resistance. The best strength values were obtained with the solution containing 25% Firetex, but the strength values of the samples treated with the solution containing 50% Firetex were also close to the control levels. The resistance values of the samples treated with 75% and 100% Firetex were measured far below the standards. In addition, although it is not very effective in terms of newsprint, it was determined that the increased Firetex ratio also increased the yellowness of the papers. As a result of the study, when the LOI and strength values are considered together, the most suitable Firetex concentration for waste newspaper was determined as 50%.","PeriodicalId":32505,"journal":{"name":"Ormancilik Arastirma Dergisi","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67632198","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
In this study, the glossiness properties of polyurethane varnishes applied to the surfaces of heat-treated wood materials with different methods and at different temperature levels were investigated. Beech (Fagus Sylvatica L.) and Scots pine (Pinus Silvestris L.) wood samples were heat treated by applying three different methods (ThermoWood, oil treatment and hot air) and three different temperatures (170 °C, 190 °C and 210 °C). Then, the sample surfaces were coated with polyurethane (PU) varnish according to industrial applications. Surface gloss measurements of unvarnished and varnished wood samples were carried out in accordance with TS EN ISO 2813 principles. According to the results of the study, the effect of the heat treatment method was found to be significant on the gloss values for the unvarnished samples. Lower gloss values were determined in oily heat-treated samples. The gloss values were found to be similar in the samples treated with ThermoWood and hot air methods, and in these samples, the gloss values increased after the heat treatment at low temperature (170 °C) compared to the control (non-heat treated) samples. For the varnished samples, the effect of the heat treatment method was found to be insignificant on the gloss values. On the other hand, surface gloss values decreased due to the increase in heat treatment temperature in both unvarnished and varnished samples.
在本研究中，研究了聚氨酯清漆在不同温度、不同方法下对热处理木材表面的光泽度性能。山毛榉(Fagus Sylvatica L.)和松木(Pinus Silvestris L.)木材样品采用三种不同的热处理方法(ThermoWood、油处理和热空气处理)和三种不同的热处理温度(170°C、190°C和210°C)。然后，根据工业应用，在样品表面涂上聚氨酯(PU)清漆。未涂漆和涂漆木材样品的表面光泽度测量按照TS EN ISO 2813原则进行。根据研究结果，热处理方法对未抛光样品的光泽度值有显著影响。在油性热处理样品中测定了较低的光泽值。用ThermoWood和热空气方法处理的样品的光泽度值相似，并且在这些样品中，在低温(170°C)热处理后的光泽度值比对照(未热处理)样品增加。对于清漆样品，热处理方法对光泽度值的影响不显著。另一方面，由于热处理温度的升高，未涂漆和涂漆样品的表面光泽度值下降。
{"title":"The effect of heat treatment method and process temperature on the glossiness of polyurethane varnishes applied to wood material surfaces","authors":"Erol Koc, Hüseyin Pelit","doi":"10.17568/ogmoad.1090092","DOIUrl":"https://doi.org/10.17568/ogmoad.1090092","url":null,"abstract":"In this study, the glossiness properties of polyurethane varnishes applied to the surfaces of heat-treated wood materials with different methods and at different temperature levels were investigated. Beech (Fagus Sylvatica L.) and Scots pine (Pinus Silvestris L.) wood samples were heat treated by applying three different methods (ThermoWood, oil treatment and hot air) and three different temperatures (170 °C, 190 °C and 210 °C). Then, the sample surfaces were coated with polyurethane (PU) varnish according to industrial applications. Surface gloss measurements of unvarnished and varnished wood samples were carried out in accordance with TS EN ISO 2813 principles. According to the results of the study, the effect of the heat treatment method was found to be significant on the gloss values for the unvarnished samples. Lower gloss values were determined in oily heat-treated samples. The gloss values were found to be similar in the samples treated with ThermoWood and hot air methods, and in these samples, the gloss values increased after the heat treatment at low temperature (170 °C) compared to the control (non-heat treated) samples. For the varnished samples, the effect of the heat treatment method was found to be insignificant on the gloss values. On the other hand, surface gloss values decreased due to the increase in heat treatment temperature in both unvarnished and varnished samples.","PeriodicalId":32505,"journal":{"name":"Ormancilik Arastirma Dergisi","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48246816","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Bioactive and radioactive properties of Lactarius delicious, Lactarius insulsus, Lactarius vellereus mushrooms were investigated and for this purpose, protein and total phenolic substance amounts, antioxidant and antimicrobial properties of mushrooms collected from Kastamonu province were determined. In addition, the amounts of some trace elements (Mg, Al, Ca, Mn, Fe, Co, Ni, Cu, Zn, Se, As, Cr, Cd) in mushrooms, three isotopes of lead (206Pb, 207Pb and 208Pb), natural (238U, 232Th) 40K) and artificial radionuclide (137Cs) levels were also calculated. Among the fungi; L. delicious attracted attention with its higher protein content and accumulation of Mg, Ca, Mn, Fe, Co, Ni, Zn, Pb-206, Pb-208, Cr. The highest total phenolic content and antioxidant activity were found in L. vellereus. Additionally; the highest 232Th and 40K radionuclide content was also determined in L. vellereus. Artificial radionuclide (137Cs) was observed only in L. insulsus fungus. As a result, it was concluded that the differences between mushroom species may affect the results of the analysis, although they are of the same genus and collected from the same region.
{"title":"Bioactive and radioactive properties of some edible wild Lactarius mushrooms","authors":"S. Yıldız, Ayşenur Gürgen","doi":"10.17568/ogmoad.1111983","DOIUrl":"https://doi.org/10.17568/ogmoad.1111983","url":null,"abstract":"Bioactive and radioactive properties of Lactarius delicious, Lactarius insulsus, Lactarius vellereus mushrooms were investigated and for this purpose, protein and total phenolic substance amounts, antioxidant and antimicrobial properties of mushrooms collected from Kastamonu province were determined. In addition, the amounts of some trace elements (Mg, Al, Ca, Mn, Fe, Co, Ni, Cu, Zn, Se, As, Cr, Cd) in mushrooms, three isotopes of lead (206Pb, 207Pb and 208Pb), natural (238U, 232Th) 40K) and artificial radionuclide (137Cs) levels were also calculated. Among the fungi; L. delicious attracted attention with its higher protein content and accumulation of Mg, Ca, Mn, Fe, Co, Ni, Zn, Pb-206, Pb-208, Cr. The highest total phenolic content and antioxidant activity were found in L. vellereus. Additionally; the highest 232Th and 40K radionuclide content was also determined in L. vellereus. Artificial radionuclide (137Cs) was observed only in L. insulsus fungus. As a result, it was concluded that the differences between mushroom species may affect the results of the analysis, although they are of the same genus and collected from the same region.","PeriodicalId":32505,"journal":{"name":"Ormancilik Arastirma Dergisi","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67632864","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Wood as a natural biological polymer, has significant advantages compared to other building materials. However, it has to be impregnated or surface coated since it does not have a resistant structure in outdoor conditions. In this study, Scots pine samples were treated with nano cerium oxide (CeO2) at 0.1%, 0.2, 0.5, 0.7, 1, 2, 3, 4 and 5 concentrations, and then were exposed to accelerated weathering. Color changes and surface chemistry were determined after 2, 4, 6, 8, 12, 16, 20, 24, 48, 72, 96, 120, 144 and 168 hours of weathering period. Tanalith-E was used as a reference chemical at the same concentration levels. Efficiency of cerium oxide treated samples was compared with the samples treated with Tanalith-E. Thus, potential of cerium oxide instead of reference chemical in improving the surface properties of wood exposed to outdoor conditions was evaluated. As a result of the study, the surface properties of the samples treated with cerium oxide and Tanalith-E were better protected in comparison to the control samples. Initial weathering periods had greater impact on the properties. It was found that cerium oxide showed similar results to the copper-based wood preservative.
{"title":"Color change and surface chemistry of nano cerium-oxide treated wood after accelerated weathering","authors":"U. Özkan, Sebnem S. Arpaci, Eylem DİZMAN TOMAK","doi":"10.17568/ogmoad.1089235","DOIUrl":"https://doi.org/10.17568/ogmoad.1089235","url":null,"abstract":"Wood as a natural biological polymer, has significant advantages compared to other building materials. However, it has to be impregnated or surface coated since it does not have a resistant structure in outdoor conditions. In this study, Scots pine samples were treated with nano cerium oxide (CeO2) at 0.1%, 0.2, 0.5, 0.7, 1, 2, 3, 4 and 5 concentrations, and then were exposed to accelerated weathering. Color changes and surface chemistry were determined after 2, 4, 6, 8, 12, 16, 20, 24, 48, 72, 96, 120, 144 and 168 hours of weathering period. Tanalith-E was used as a reference chemical at the same concentration levels. Efficiency of cerium oxide treated samples was compared with the samples treated with Tanalith-E. Thus, potential of cerium oxide instead of reference chemical in improving the surface properties of wood exposed to outdoor conditions was evaluated. As a result of the study, the surface properties of the samples treated with cerium oxide and Tanalith-E were better protected in comparison to the control samples. Initial weathering periods had greater impact on the properties. It was found that cerium oxide showed similar results to the copper-based wood preservative.","PeriodicalId":32505,"journal":{"name":"Ormancilik Arastirma Dergisi","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67632566","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Plastics have been used in many areas of our daily lives for years generating large amount of post-consumption wastes. It is important to recycle and reuse of these materials since they remain without degrading for many years causing harm to the environment. Thermoplastic foams are widely used as thermal insulation, automotive seating, packaging, furniture and energy absorbing materials due to their low density, high strength/weight ratio, high energy absorption performance and superior insulation properties. In this study, potential usage of polyvinyl chloride (PVC), one of the most used plastics, in the manufacture of PVC foams were aimed. For this purpose, the effect of chemical foaming agent amount on the some physical, mechanical and morphology properties of PVC foams were investigated. According to the obtained results, the use of foaming agent provided up to 40% reduction in the density of PVC foams. With chemical foaming agent amount were increased specific impact strength values of PVC foams. Cell structure of foams was also investigated and an increase in cell coalescence with the increase of chemical foaming agents was observed.
{"title":"Recycling of polyvinyl chloride (PVC): production and characterization of PVC foams","authors":"Yıldız Birbilen, K. Karakuş, F. Mengeloglu","doi":"10.17568/ogmoad.1095629","DOIUrl":"https://doi.org/10.17568/ogmoad.1095629","url":null,"abstract":"Plastics have been used in many areas of our daily lives for years generating large amount of post-consumption wastes. It is important to recycle and reuse of these materials since they remain without degrading for many years causing harm to the environment. Thermoplastic foams are widely used as thermal insulation, automotive seating, packaging, furniture and energy absorbing materials due to their low density, high strength/weight ratio, high energy absorption performance and superior insulation properties. In this study, potential usage of polyvinyl chloride (PVC), one of the most used plastics, in the manufacture of PVC foams were aimed. For this purpose, the effect of chemical foaming agent amount on the some physical, mechanical and morphology properties of PVC foams were investigated. According to the obtained results, the use of foaming agent provided up to 40% reduction in the density of PVC foams. With chemical foaming agent amount were increased specific impact strength values of PVC foams. Cell structure of foams was also investigated and an increase in cell coalescence with the increase of chemical foaming agents was observed.","PeriodicalId":32505,"journal":{"name":"Ormancilik Arastirma Dergisi","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67632291","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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