One of the most critical problems throughout world is air pollution, causing death millions individuals annually, and it reported that 90% global population breathes polluted air. Among components harmful ones are heavy metals, which can remain non-degraded in nature for a long time, bio-accumulate living organisms, be toxic or carcinogenic at low concentrations. Hence, monitoring reducing metal pollution high-priority research topics. Heavy metals accumulate within various organs plants...

Climate-dependent changes in wood anatomical characteristics were studied for Rosa sp. and Nerium oleander grown phytosociological areas. For this purpose, samples taken from the individual species Antalya, Eskisehir, Kastamonu provenances, where Terrestrial, Black Sea, Mediterranean climate types prevail, 11 characters identified or calculated. As a result of study, it has been determined that large effects on are subject study each characteristic is at higher level individuals areas...

The fatty acids content in pine seeds is important because it affects germination success and commercial value. In this study, the amount of stone (Pinus pinea L.) was determined collected from different geographical locations after two-year storage. were where peanut densely located Western Black Sea Region northern Turkey 2019. results showed that some (C18:1n-9, ƩMUFA, C18:2n-6, ƩPUFA) did not differ significantly, but others (C16:0, C18:0, C20:0, ƩSFA, C18:3n-3) dependent on locations....

The aim of this study was to investigate the effects tannin and thermal treatment on physical properties such as dimensional stability moisture content (%), well mechanical bending strength, modulus elasticity, compression strength laminated chestnut wood composites, which are used commonly for shipboard construction in Turkey. boat is usually exposed several treatments order achieve better bonding performance remove excessive tannins. According results obtained, without were compared...

This study aimed to decelerate the weathering of paper from light by utilizing antioxidant property sodium ascorbate (SA), which is an ascorbic acid salt.Three different sessions cooking were carried out adding 2.5%, 5.0% and 7.5% SA in proportion weight a completely dried chip addition 24% NaOH order identify influence on cooking.It was observed that pulp yield decreased when added cooking.For reason, it decided add into control pulps instead digester.The same amount control.The SA-added...

Bu calismada kayisi (Prunus armeniaca L.) odunu ve meyve endokarpinun bazi kimyasal morfolojik ozellikleri incelenmistir. Arastirma sonuclarina gore, odununun holoseluloz, alfaseluloz lignin icerikleri sirasiyla %79.5, %42.33 %16.43 olarak bulunmustur. Ayni sekilde oranlari %79.33, %28.65, %36.22 tespit edilmistir. Morfolojik ele alindiginda kabuklarinin kâgit uretimine uygun olmadigi fakat levha uretiminde kullanilabilecegi Bunlara ilaveten diger endustriyel degeri olan yaprakli agac...

In this study, computer aided drying schedules were developed for Camiyani Black Pine (Pinus nigra var. pallasiana) lumber less than 30 mm thick, between 30-60 thick and larger 60 mm. Schedules calculated on gradient basis. software (named KILNBRAIN), users can find more then one hundred other species’ data (density, fiber saturation point, temperatures warming up periods, gradients moisture contents above 20%). Users choose thickness, initial final content, kiln type, air velocity quality....

This study was conducted to determine the impacts of heat treatment on lap shear strength, density, and mass loss black pine wood. In study, wood boards bonded with polyurethane were subjected temperatures 160, 180, 200°C for durations 2 6 hours. Specimens having two layers prepared from untreated treated mechanical testing bond lines. Data analyzed using variance analysis Tukey's test changes in density heat-treated strength. The results indicated that strength decreased as intensity...

Today, paper is one of the most needed products for its cultural and industrial use.As an indispensable component in our lives, has been improved by technology developments it's become more aesthetic this leads to a gradual increase use per capita every year.In study, forecasting was carried out paperboard production, export import amounts using regression analysis method next twenty years based on data between 1982 2006.By analyzing results, it can be seen that cardboard production will...

In this study, the physical and mechanical properties of medium density fiber boards (MDF) produced with urea formaldehyde adhesive reinforced nano-boron nitride (BN) nano-titanium dioxide (TiO2) were investigated. 0.5% 1.5% nano-filled adhesives used in production test samples. The density, thickness swelling, water uptake, internal bond strength, bending modulus elasticity SEM analysis prepered determined. According to laboratory tests conducted, there was no significant change after nano...

<title>Abstract</title> In this study, it was aimed to determine optimum wood content in the particleboard (PB). This issue is important for protection of forest resources. PBs were produced with two densities (520 and 560 kg/m³), three surface layer (SL) ratios (28%, 30%, 32%), sanding end-thicknesses (17,8 mm 18,0 mm). laminated decor paper (DP) using a hot press (190°C, 35 kg/cm²). It determined SL ratio, board density, tolerance minimum content. Manufacturers have...

In order to benefit more rationally from the wood raw material, a very important natural source today, we should especially deal with industrial branch processing it. Change and development in production, import export quantity values of Turkish forestry forest sector has eventually required planning both national resources using these on scientific criteria. this study, based last 25 years data, potentials plywood blockboard Turkey were analyzed regression analysis. Consequently, it was...

That the foreign trade enjoys an important place in industrialization policies shows need to develop fiberboard industry and give this sector.For reason, it has become very examine changes occur production structure of Turkey over time.And hence study, models are established projections developed for production, import export Turkish by econometric method.As a result regression analysis performed, is seen that 2 million m 3 2006 shall increase 1.5 times year 2021, reaching 3.4 , around 200...

Knowledge of the nutrient content edible seeds oriental beech (Fagus orientalis Lipsky) as a food resource for rural people, is incomplete and there need studies that will provide this information. The collected from 12 different locations in primary distribution area Turkey were investigated their oil fatty acid composition. contents these populations determined by gas chromatography-mass spectrometry (GC/MS) acids methyl esters (FAME). various tree found to contain total amount ranging...

Bu calismada, saricam ( Pinus sylvestris  L.) ve Uludag goknari Abies bornmulleriana  Mattf.) odunlarinin bazi ozellikleri uzerine isil islemin etkisi arastirilmistir. % 65 nispi nem 20 ° C sicaklikta sartlandirilan ahsap numuneler, 190 °C' de 4 saat sureyle isleme tabi tutulmustur. Isil islemden sonra yogunluk, su alma, boyutsal stabilite, renk degisiklikleri FTIR analizi tespit edilmistir. Test sonuclarina gore islem gormus her iki agac turunde alma hacimsel genisleme degerlerinde dusme...

The aim of this study was to investigate the developmental physiology sweet chestnut trees (Castanea sativa Mill.) different age groups (≥ 25, ≥ 50, 100, 200, and 400) in Catalzeytin district Kastamonu, Turkey. For purpose, photosynthetic pigments, proline, total soluble protein, glucose, sucrose, carbohydrate starch values, malondialdehyde (MDA) hydrogen peroxide (H2O2) concentration, also ascorbate peroxidase (APX), catalase (CAT), superoxide dismutase (SOD) activities were measured leaf...

Bu çalışmada, yüzeyleri melamin emdirilmiş dekor kağıdı (MIDP), polivinil klorür (PVC) ve lake boya (LP) ile kaplanmış MDF levhaları kullanılmıştır. Kaplama malzemelerin levhaların yüzey özellikleri üzerine etkileri belirlenerek karşılaştırılmıştır. Elde edilen sonuçlara göre, yüzeyi PVC aşınma direnci, MIDP LP uygulanmış levhalardan daha yüksek olduğu görülmüştür. Sigara ateşine dayanım özelliği boyalı levhalarda diğerlerine göre bulunmuştur. Su buharı lekelenmeye karşı mukavemet dirençleri...

In this study, the effects of vermiculite volcanic minerals usage on surface properties were investigated in medium density fiberboard (MDF) production. The test boards produced using dry method with 12% urea formaldehyde resin. Additions 10%, 15%, 20% and 30% used based full fiber weight. Surface roughness, color gloss values both surfaces obtained determined. Based results, ratio increased, roughness increased. bottom determined to be higher than top surface. With use vermiculite, average...

The aim of this study was to investigate the developmental physiology sweet chestnut trees (Castanea sativa Mill.) different age groups (≥ 25, ≥ 50, 100, 200, and 400) in Catalzeytin district Kastamonu, Turkey. For purpose, photosynthetic pigments, proline, total soluble protein, glucose, sucrose, carbohydrate starch values, malondialdehyde (MDA) hydrogen peroxide (H2O2) concentration, also ascorbate peroxidase (APX), catalase (CAT), superoxide dismutase (SOD) activities were measured leaf...

In this study, the effect of press temperature and duration on bonding strength laminated veneer lumber (LVL) was investigated. For purpose, LVLs were produced from I 77/51 American poplar clone (Populus deltoides) by using 2 different temperatures (140 170⁰C) 3 (10, 15 20 minutes). Phenol formaldehyde (PF) adhesive used for veneers. The wood failure rate determined according to TS EN 314-1 standard. According experimental results, pressed at 170⁰C showed better compared 140⁰C. On other...