Sürdürülebilir Kalkınma Amaçları

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• MakaleAçık Erişim2024Scopus SJRQ3/r/gumushane/14058
  Noise as a physical risk factor in furniture industry machines

  Yasar, Sekip Sadiye; Komut, Osman; Yasar, Mehmet; Fidan, Muhammed Said

  This study aimed to determine the risk level of noise, which is an important physical risk, in small and medium-sized furniture industry enterprises. The noise levels of the circular sawing machines, edge banding machines, and mitre cutting machines, which are among the main processing machines of the sector, were measured. The study was carried out in 32 furniture businesses. The possible risks of noise on the operators of the machines in question and other employees were evaluated. Noise level measurements were made with the help of TESTO 815 measuring device. Dunnett’s T3 test was used to detect differences in noise levels for machine operators and other employees. It was determined that the edge banding machine does not pose an occupational health and safety risk in terms of noise risk factors. However, the mitre cutting machine and the circular sawing machine pose a risk for the machine operator in active production by creating noise above the established exposure limit value. The mitre cutting machine carries the same risk for the machine operator when it is in operation but in passive production. The results revealed the need for personal protective equipment for machine operators for mitre cutting and circular sawing machine.

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  AtıfScopus2·WoS1·OpenAlex3

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• MakaleAçık Erişim2024Scopus SJRQ3/r/gumushane/11481
  Effect of Nano Particulate Preservation Materials on the Combustion Temperatures of the Wood

  Yasar, Sekip Sadiye; Cicek, Eyup; Yasar, Mehmet

  It is acknowledged that boron, ammonium, and nitrogenous compounds, which are used today as fire retardants, cause an increase in the hygroscopicity of wood materials. In this study, Scots pine (Pinus sylvestris L.), Anatolian chestnut (Castanea sativa Mill.), and Eastern spruce (Picea orientalis Link) woods were impregnated with 1.5% nano-sized hexagonal boron nitride (NB) according to ASTM D1413-76 (1976) standards. Flame-induced combustion (FIC), self-combustion (SC), and glowing combustion (GC) temperatures were determined. The highest retention amount was measured in spruce and the lowest was in chestnut among the wood samples taken for testing and measurement. When compared with the control samples, NB application caused an increase in SC and FIC temperatures (at higher rates). According to the glowing combustion temperature control samples, an increase was observed in chestnut and spruce and a decrease was observed in Scots pine among the samples applied with NB.

  AtıfScopus1·WoS1

  İncele
• MakaleAçık Erişim2023/r/gumushane/20275
  Ağaç işleri ve mobilya sektörlerinde iş güvenliği kültürüne yönelik bir değerlendirme: Gümüşhane ilinde bir durum çalışması

  Yaşar, Mehmet; Yasar, Sekip Sadiye; Fidan, Muhammed Said; Komut, Osman

  Türkiye’de mobilya endüstrisi sektörü küçük ve orta ölçekli işletme yapısıyla ülke genelinde önemli bir istihdam alanı sağlamaktadır. Diğer yandan sektör, iş sağlığı ve güvenliği hususunda olumsuzlukların fazlasıyla yaşandığı faaliyet alanları arasında yer almaktadır. Bu çalışmanın amacı, sanayi bölgelerinden uzak küçük ve orta ölçekli ağaç işleri ve mobilya endüstrisi işletmelerinde iş sağlığı ve güvenliği koşullarının değerlendirilmesidir. Bu kapsamda toplam 54 çalışan ile yüz yüze görüşme esasına dayalı anket uygulaması gerçekleştirilmiştir. Çalışmada 5’li likert ölçeğinde hazırlanmış önermeler ile işyerlerinin durumu ve çalışanların konuya ilişkin görüşleri tespit edilmeye çalışılmıştır. Araştırmada, elde edilen veriler üzerinde oransal karşılaştırmaların yanı sıra, iş kazasına maruz kalma değişkenine göre iş güvenliği faktörlerinin analizinde Mann Witney U testi kullanılmıştır. Elde edilen bulgular, katılımcı işletmelerin %67 oranında faaliyet süresinin 5 yılın altında olduğu belirlenmiştir. Ayrıca kişisel koruyucu donanım kullanımı ve periyodik sağlık muayenelerde eksikliklerin olduğu tespit edilmiştir. Katılımcıların iş kazası maruziyeti %72 olarak belirlenirken, el ve parmakların ağırlıklı yaralanan uzuvlar olduğu anlaşılmıştır. Diğer yandan iş kazası maruziyetinin iş güvenliği faktörlerine yönelik görüşlere ilişkin istatistiksel düzeyde anlamlı farklılıklar (p<0,05) oluşturduğu tespit edilmiştir. Sonuç olarak, küçük ve orta ölçekli ağaç işleri ve mobilya işletmelerinde iş sağlığı ve güvenliği kültürünün yeterince gelişmediği söylenebilir.

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  AtıfOpenAlex1·TR Dizin1

  İncele
• MakaleAçık Erişim2020Scopus SJRQ2/r/gumushane/14948
  A study on noise levels of machinery used in lumber industry enterprises

  Fidan, Muhammed Said; Yasar, Sekip Sadiye; Komut, Osman; Yasar, Mehmet

  The aim of this study is to help to create a healthier environment by measuring the noise levels in the furniture and lumber sectors of forest products industry. In this study, noise measurement for approximately 3 min has been conducted in 4 measurement spots in the side of the machinery, in the factory entrance and in full and empty state for each machinery; from 3 different chosen spots in enterprises producing lumber. Measurements have been recorded as 720, from each machine as 36 measurements, with the condition to be recorded every 5 sec for 3 min. For this purpose, noise measurements have been carried out in 17 workplaces producing lumber and results have been compared statistically. As a result of the obtained findings, it is understood that the noise levels of thickness machinery don't exceed the value for the upper limit stated in the regulations. However, vertical wood band sawmill and band saw machines have been observed to go over this limit. Besides, some factors of planning and multi slitting machine don't exceed this limit, some of them exceed. As a result, it has been conducted that when noise levels of machinery used in the lumber industry enterprises exceed the upper limit stated in the regulations, they can pose a serious threat to human health.

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  AtıfScopus6·WoS6·OpenAlex6

  İncele
• MakaleAçık Erişim2019/r/gumushane/15905
  Some Physical and Mechanical Properties of Impregnated Chestnut Wood with Natural and Chemical Agent Exposed to Outdoor Conditions

  Yasar, Mehmet; Altunoiv, Mustafa

  Wood preservatives have been widely used to extend the service life of wood. The most objectionable environment for wood is outdoor conditions. In this study, test specimens prepared from chestnut wood (Castanea sativa Mill) were impregnated with natural and chemical impregnation agent. It was aimed to determine the effect of outdoor conditions on physical and mechanical properties of wood material by keeping them under these conditions for one year. As natural impregnation material pine tannin and acorn tannins, as chemical impregnation material imersol aqua and timbercare aqua were used. The retention amount, air-dried density, bending strength, modulus of elasticity, compression strength parallel to fibers, adhesion strength parallel to fibers, screw withdrawal strength were determined. As a result, it can be said that the physical and mechanical test values can compare wood impregnated with natural impregnation materials to wood impregnated with chemical impregnation materials after one year exposed to outdoor conditions.

  AtıfWoS5·OpenAlex4·TR Dizin4

  İncele
• MakaleYalnız künye2017Scopus SJRQ1/r/gumushane/13362
  Combustion properties of impregnated spruce (Picea orientalis L.) wood

  Şadiye Yasar, Ş.; Said Fidan, M.; Yaşar, Mehmet; Atar, Musa; Alkan, Elif

  Wooden material is one of the most commonly used construction materials since history of humanity due to its environment friendly and renewable natural source. This structure of wood material is also preferred because it is lightweight, easy to work, resistant to factors such as earthquake and fire, as compared to other used building materials. However, organic structure of the wooden material causes it to be affected negatively because of damages that might occur outdoors under inappropriate conditions. Due to this reason, in this study were investigated effects of various chemicals (impregnated and varnish type), used to prevent environmental damages (biotic, abiotic pests, fire etc.) on combustion resistance of the wood exposed to air conditions for a year. For this purpose, prepared Caucasian spruce (Picea orientalis L.) specimens were surface treated (synthetic and water-based varnish) after impregnated according to ASTM-D 1413-76 principles with various chemicals (Tanalith-E and Wolmanit-CB). Test specimens with impregnated, varnished and processless, were left in outdoor conditions for a year. Combustion experiment was conducted according to the principles in ASTM-E 160-50 combustion test standards. According to the results of the experiment, control and year specimens had close results in the weight loss. Weight loss was found be lower Wolmanit-CB impregnated specimens (92.12%) among the impregnated materials to synthetic varnish coated specimens (% 91.89) among the varnished specimens. It was determined that using Wolmanit-CB for impregnating and synthetic varnish for varnishing would be better according to the results. Furthermore, the amount of O2 (25.84 ppm) in control specimens in combustion with flame; the amounts of CO and CO2 (31787, 19.92 ppm respectively) in year specimens in combustion without flame and the amount of NO (54.65 ppm) in year specimens in glowing was observed to be the highest.

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  AtıfScopus4·WoS8·OpenAlex8

  İncele
• Derleme MakaleYalnız künye2016Scopus SJRQ3/r/gumushane/16748
  Characterization of the Combustion Parameters of Impregnated and Varnished Cedar Wood (Cedrus libani)

  Fidan, M. Said; Yasar, S. Sadiye; Yasar, Mehmet; Atar, Musa; Alkan, Elif

  The present study investigated the effect of various types of impregnating and surface treatment materials on the fire resistance of wood material indoors and outdoors. Wood samples (Cedrus libani A. Rich.) were impregnated with Wolmanit-CB or Tanalith-E according to ASTM D1413-76 (American Society for Testing and Materials 1976). The impregnated surface was treated with either synthetic or water-based outdoor varnish materials. The impregnated and varnished samples were left in outdoor conditions for 1 year. The combustion characteristics of the samples were investigated at the end of 1 year according to the combustion parameters detailed in the ASTM E160-50 (1975) combustion test. The results of this study indicated that the combustion parameters were lower in the 1-year-old samples (89.12% of control values), in the samples impregnated using Wolmanit-CB (89.18% of control values), and in samples treated using water-based varnish (88.43% of control values). The analysis of flue gas indicated that the O-2 content of the 1-year-old samples impregnated with Wolmanit-CB and treated with synthetic varnish was higher, whereas the CO content was lower. In conclusion, impregnated Wolmanit-CB specimens provide higher fire resistance.

  AtıfWoS6·OpenAlex4

  İncele
• MakaleAçık Erişim2016Scopus SJRQ2/r/gumushane/15294
  Combustion Characteristics of Impregnated and Surface-treated Chestnut (Castanea sativa Mill.) Wood Left Outdoors for One Year

  Fidan, Muhammed Said; Yaşar, Şekip Şadiye; Yaşar, Mehmet; Atar, Musa; Alkan, Elif

  Treating wood with impregnating materials in order to improve resistance to burning is a commonly employed safety measure. In this study, chestnut (Castanea sativa Mill.) wood samples were impregnated using either Tanalith-E or Wolmanit-CB according to ASTM-D 1413-76 and surface-treated using water-based or synthetic varnish according to ASTM-D 3023. These samples were used to investigate the combustion characteristics of samples left outdoors for one year as detailed in ASTM-E 160-50. The combustion temperatures of the samples left outdoors were similar upon impregnation with either Tanalith-E or Wolmanit-CB. However, the combustion temperature of the samples treated with synthetic varnish was lower than those that were treated with water-based varnish. The time to collapse and the total duration of combustion of the samples left outdoors were shorter for those impregnated with Wolmanit-CB. Weight loss of the samples left outdoors was higher for those that were impregnated with Tanalith-E and treated with water-based varnish. Gas analysis of the samples that were left outdoors indicated that the O2 content of flue gas from samples that were impregnated with Wolmanit-CB and treated with synthetic varnish was high and the CO content of flue gas from the same samples was low.

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  AtıfScopus5·WoS4·OpenAlex8

  İncele
• MakaleAçık Erişim2016Scopus SJRQ2/r/gumushane/15251
  Determining the Effect of Seasonal Variation in Spruce (Picea orientalis L.) Wood Treated with Various Impregnations on Combustion Resistance

  Yasar, Ş. Şadiye; Fidan, M. Said; Yaşar, Mehmet; Atar, Musa; Alkan, Elif

  Prepared test specimens were surface treated and coated with synthetic and water-based outdoor varnishes after being chemically impregnated. The test specimens were left outdoors to determine the effects of impregnation and treatment on the wood during each of the four seasons. Caucasian spruce (Picea orientalis L.) test specimens were prepared and combustion analyses were performed. As a result of the combustion test, weight loss results, as compared with the control, were 89% lower in the spring specimens, 90% lower with impregnation, and 90% lower with the synthetic varnish coating. Furthermore, the O2 amount during combustion was found to be the highest in combustion with a flame source in the winter specimens (21%). The CO2 amount was the highest in combustion without a flame source for full-year specimens (20%). The CO amount was the highest in combustion without a flame source of full-year specimens (31,787 ppm), and the NO amount was the highest during glowing of full-year specimens (55 ppm). Final results showed impregnation with Tanalith-E and water-based varnish coating to be the most effective fire protective treatments.

  AtıfScopus5·WoS5·OpenAlex3

  İncele
• MakaleYalnız künye2016Scopus SJRQ2/r/gumushane/12933
  Influences of seasonal alterations on the burning characteristics of impregnated and surface treated chestnut (Castanea sativa mill ) wood

  Yasar, S. Sadiye; Fidan, Muhammed Said; Yasar, Mehmet; Atar, Musa; Alkan, Elif

  Wood material is generally preferred due to its resilience against earthquakes, aesthetic properties, and its warmth as well as being natural. One of the major problems of employing this natural and breathable product is its ease of combustibility. Despite this adverse characteristic, its high resistance against burning and its ability to maintain its weight bearing characteristics until the very end does not lead to sudden collapses as is seen in steel and concrete systems. Treating wood with impregnating materials in order to improve its resistance against burning is an improved safety measure for the prevention of ignition. This study investigate seasonal effects on the ignition characteristics of chestnut wood samples impregnated using either Tanalith-E or Wolmanit-CB as detailed in ASTM-D 1413-76 and surface-treated using water-based or synthetic varnish as detailed in ASTM-D 3023- 88. The temperature of burning process was the highest in the investigated samples, in those impregnated with Wolmanit-CB and those that were treated with water-based varnish. The results of the study indicated that weight loss was lower during winter (84.59 %), for samples that were impregnated using Wolmanit-CB (84.46 %) and in those that were treated with water-based varnish (84.18 %). On the other hand, the O2 content was determined to be the highest and the CO content the lowest in winter samples that were impregnated using Wolmanit-CB and treated with synthetic varnish.

  AtıfScopus5·WoS5

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