https://hdl.handle.net/20.500.12809/187 2026-04-03T23:59:29Z 2026-04-03T23:59:29Z Baysal, Ergün Yalınkılıç, Mustafa Kemal Temiz, Mehmet Ali https://hdl.handle.net/20.500.12809/7541 2021-01-29T08:17:44Z 2000-01-01T00:00:00Z

Çeşitli katkı maddeleriyle zenginleştirilmiş kayın talaşları üzerinde (Pleurotus Florida)' kültüre alınması Baysal, Ergün; Yalınkılıç, Mustafa Kemal; Temiz, Mehmet Ali Bu çalışmada yöredeki biçme atölyelerinden elde edilen kayın talaşlarına, turba toprağı(Bolu-Yeniçağa torfu), tavuk gübresi ve pirinç kavuzu gibi katkı maddeleri ilave edilerek Pleurotus florida'nın bu substrat karışımlarında misel gelişim süreleri ve verim değerleri incelenmiştir. Çalışmadan elde edilen sonuçlara göre odun talaşı (kayın) + pirinç kavuzu (PK) (80 + 20) karışımında misel gelişim süresi bakımından 17.20 gün ortalama ile ve verim değeri açısından 372.40 gr/kg ortalama ile en uygun sonuçlar elde edilmiştir. Çalışmada odun talaşı (kayın) + tavuk gübresi (TG) (80 + 20) karışımında misel gelişim süresi bakımından 40.8 gün ortalama, verim değeri açısından 92.80 gr/kg ortalama ile en elverişsiz sonuçlar elde edilmiştir. Genel olarak pirinç kavuzu, odun talaşının kültivasyon özelliklerini olumlu yönde etkilerken, prinç kavuzu'nun artan oranlarında misel gelişim süresi ve verim değeri olumlu yönde etkilenmiştir.

2000-01-01T00:00:00Z Çolak, Ayşen Melda Civelek, Hasan Sungur Erdil, Yusuf Ziya https://hdl.handle.net/20.500.12809/7478 2021-03-01T11:44:07Z 2006-01-01T00:00:00Z

Ahşap malzemede zarar yapan Hylotrupes bajulus (L.) ve Trichoferus griseus (F.) (Coleoptera: Cerambycidae) türlerinin ahşabın bazı fiziksel ve mekanik özelliklerine etkileri üzerinde araştırmalar Çolak, Ayşen Melda; Civelek, Hasan Sungur; Erdil, Yusuf Ziya Bu çalışma 2003–2005 yılları arasında doğa ve laboratuvar koşullarında gerçekleştirilmiştir. Ekonomik anlamda ahşap konstrüksiyonlarda en çok kullanılan, böcekler tarafından zarara uğratılmış ve böcek zararına uğramamış karaçam, kızılçam, göknar, ceviz, doğu kayını ve kavak türleri orman işletmeleri, özel sektör işletmelerine ait kereste depolarından ve ahşap evlerden toplanarak laboratuvar ortamına getirilmiştir. Böcek zararı ile bulaşık olan ve olmayan örnekler tesadüfi örnekleme yöntemine göre toplanmıştır. Örneklerin bulaşma öncesi ve sonrası ağırlık, rutubet miktarı ve yoğunlukları saptanmıştır. Surveylerde ahşap zararlısı olarak Hylotrupes bajulus (L.) ve Trichoferus griseus (F.) (Coleoptera: Cerambycidae) türleri saptanmıştır. Böcek zararına uğramamış ve uğramış örneklerde basınç direnci ve çekme direnci en yüksek kayın, en düşük kavak olarak bulunmuştur. Statik eğilme direnci böcek zararına uğramamış örneklerde en yüksek ceviz, en düşük kavakta; böcek zararına uğramış örneklerde ise en yüksek kızılçam, en düşük göknar örneklerinde belirlenmiştir.; This study was carried out in natural and laboratory conditions in Mugla province between 2003& #8211; 2005 years. Both harmed and unharmed samples (by insects) of Pinus nigra, P. brutia, Abies spp, Juglans regia, Fagus orientalis and Populus species which are used most commonly in wooden constructions were taken from log warehouses of public institution of Ministry of Forestry, and of private organizations to the laboratory environment. Samples which are both control and destroyed by insects were categorized according to wood species by means of random selection technique. Wood destroying species collected in the surveys have been identified by experts as Hylotrupes bajulus (L.) and Trichoferus griseus (F.) (Coleoptera: Cerambycidae). According to the findings obtained, the highest pressure resistance and tensile resistance value was found for Fagus orientalis and the lowest was found for Populus sp. for both infected and control samples. The highest static bending pressure value was found at control for J. regia and the lowest value was found for Populus sp.. On the other hand, for infected samples, the highest value was found for P. brutia and the lowest was found for Abies spp.

2006-01-01T00:00:00Z Yalınkılıç, Mustafa Kemal İlhan, Rifat Imamura, Yuji Takahashi, Munezoh Demirci, Zafer Yalınkılıç, Ahmet Cihangir Peker, Huseyin https://hdl.handle.net/20.500.12809/5438 2020-12-25T07:42:46Z 1999-01-01T00:00:00Z

Weathering durability of CCB-impregnated wood for clear varnish coatings Yalınkılıç, Mustafa Kemal; İlhan, Rifat; Imamura, Yuji; Takahashi, Munezoh; Demirci, Zafer; Yalınkılıç, Ahmet Cihangir; Peker, Huseyin Outdoor performances of a polyurethane varnish and an alkyd-based synthetic varnish coated over chromium-copper-boron (CCB)-impregnatecl Scots pine (Pinus sylvestris L.) and chestnut (Castanea sativa Mill.) [10 (R) x 100 (T) x 150 (L) mm] were investigated. These varnishes were also applied to the wood surface as sole coatings or impregnated into wood as water-repellent (WR) solutions. Outdoor exposure was performed in the Black Sea region of northern Turkey (41 degrees N, 39.43 degrees E) where humid weather predominates throughout the year and accelerates decomposition of coated wood surfaces. The wood panels were exposed at 45 degrees south on their tangential surfaces. After 9 months of exposure to summer, autumn, and the following winter season, the color and glossiness changes of the exposed surface, adhesion of the coating layer to the wood surface, water absorption through the coating layers, mass loss, and the hardness of the board surface were studied. CCB impregnation greatly stabilized the surface color of varnish-coated panels of both wood species. Gradual decreases of adhesion between varnished layers and preimpregnated surfaces were attributed to probable weakening of interactions at the interface of the treated wood and the film layer. A superficial cleaning process of treated wood is suggested to improve glossiness and adhesion. The coated wood surface became harder with time on outdoor exposure until a maximum hardness occurred followed by softening, whereas the uncoated surface softened steadily. Polyurethane varnish yielded a harder surface than synthetic varnish. Mass losses of wood panels after 9 months of exposure were negligible for all treatments compared with the untreated controls, which were totally discolored and eroded on the surface. It is concluded that long-term exterior wood protection has been achieved by a successful combination of an appropriate preservative treatment followed by a compatible surface-coating process. WOS: 000084669300010

1999-01-01T00:00:00Z Yalınkılıç, MK Gezer, ED Takahashi, M Demirci, Z ilhan, R Imamura, Y https://hdl.handle.net/20.500.12809/5434 2020-12-25T12:30:48Z 1999-01-01T00:00:00Z

Boron addition to non- or low-formaldehyde cross-linking reagents to enhance biological resistance and dimensional stability of wood Yalınkılıç, MK; Gezer, ED; Takahashi, M; Demirci, Z; ilhan, R; Imamura, Y Boric acid (BA) and phenylboronic acid (PBA) were added into aqueous solutions of non- or low-formaldehyde reagents; dimethylol dihidroxy ethyleneurea (DMDHEU), glutaraldehyde (GA) and glyoxal (GX), in order benefit from their potential synergistic effects in wood. Boron addition to GA improved the anti-swelling efficiency (ASE) of wood while other combinations resulted in some decreases. Ion chromatography analysis of boron leaching supported the presumption on boron-GX complexion referred to ASE changes in the presence of boron. Although such complexations seemed to reduce boron leaching, boron appeared to decrease cross-linking efficacy of GX and to a lesser degree of DMDHEU to the wood cell wall which was understood from declining ASE of wood after boron addition. Boron addition to these reagents considerably improved the decay resistance against Tyromyces palustris and Coriolus versicolor, which are the representative test fungi of brown- and white-rot in Japanese Industrial Standard (TIS) A-9201-1991, respectively. PEA had somewhat less contribution to decay resistance of GX most possibly due to chemical complexation. GA proved superior in decay resistance to the other two reagents. Mass loss due to the Formosan termite Coptotermes formosanus attack could be reduced to a minimum with total inactivation of termites by PEA addition. BA retention did not suffice to impart complete termite resistance after ten cycles of severe weathering of the specimens. Thus, BA was found appropriate to be added to the used cross-linking agents in such service conditions where decay risk is high while PEA combinations should be preferred if termite damage prevailes. 0000-0001-9657-7290; WOS: 000083380800010

1999-01-01T00:00:00Z