Results 1 to 10 of about 2,250 (146)

Karaçam (Pinus nigra Arnold.) Odununun Lif Morfolojisi ve Kimyasal Yapısı Üzerine Ağaç Gövde Yüksekliğinin Etkisi

open access: yesBartın Orman Fakültesi Dergisi, 2017
Bu çalışmada, karaçam (Pinus nigra Arnold.) ağacının gövde yüksekliğinin odunun lif morfolojisi ve kimyasal yapısı üzerine etkileri araştırılmıştır. Bu amaçla, karaçam tomruklarının (3 ağaç) 3 farklı kısmından (alt, orta ve üst) odun örnekleri alınmıştır.
Ayben KILIÇ   +2 more
doaj   +3 more sources

Karaçam (Pinus nigra Arnold.) Meşcerelerinde Yıllık İbre Döküm Miktarı ve Bu Yolla Ekosisteme Geri Dönen Karbon ve Azot’un Tespiti [PDF]

open access: yesDüzce University Faculty of Forestry Journal of Forestry, 2023
Orman ekosistemlerinde, ibre döküm miktarı;ekosistem fonksiyonlarından birincil üretim, karbonve besin maddelerinin döngüleri ile küresel iklimdeğişikliğini de kapsayan önemli süreçler hakkındabilgiler sunmaktadır. Araştırma Ormanı’nda(Çankırı) yürütülen
Serdar Akburak   +2 more
doaj   +2 more sources

Development of stem diameter model using quantile regression

open access: yesTurkish Journal of Forestry, 2021
Tree volume estimates are one of the most important components of growth and yield models. Stem diameter models are one of the most modern approaches used for stem volume estimation.
Ramazan Ozçelik   +2 more
doaj   +1 more source

Investigation of bending properties of cross laminated timber made of Uludağ fir and black pine

open access: yesTurkish Journal of Forestry, 2022
In this study, flexural strength and modulus of elasticity (MOE) of cross-laminated timber (CLT) made of the Uludag fir and black pine wood, which are domestic coniferous tree species included in the scope of the EUROCODE 5, and polyvinyl acetate (PVAc ...
Doğan Memiş   +3 more
doaj   +1 more source

Height-diameter model for natural black pine stands in Eğirdir region: Quantile regression approach

open access: yesTurkish Journal of Forestry, 2022
Black pine (Pinus nigra JF Arnold.) is one of the most economically and ecologically important tree species in Turkey. In this context, reliable and accurate information about the current status, growth and yield characteristics of these forests is ...
Onur Alkan, Ramazan Ozçelik
doaj   +1 more source

Nickel plating on wood and wood composite surfaces: Characterization of surface durability

open access: yesTurkish Journal of Forestry, 2023
In this study, the performance of nickel plating on wooden surfaces was investigated. Black pine (BP), medium density fiber board (MDF) and particle board (PB) were used for the wooden samples. After the sample surfaces were sanded with 200, 500 and 1000
Erol Ulutepe   +2 more
doaj   +1 more source

City Hospitals: The Last Attire of Privatisation in the Turkish Health System

open access: yesIğdır Üniversitesi İktisadi ve İdari Bilimler Fakültesi Dergisi, 2021
As the health system has been sharply undergoing a series of changes in Turkey and the rest of the world, critical political and economic arguments are required to assess the capitalist relationships that exist behind the scenes ...
Ozan Karaçam
doaj   +1 more source

Bending of a Cross-Ply Laminated Composite Beam Under a Sinusoidal Transverse Loading

open access: yesHittite Journal of Science and Engineering, 2023
Bending of a laminated composite beam under to a sinusoidal loading is carried out for simply support boundary condition for a specific cross-ply stacking sequence. To demonstrate the accuracy of the analytical results, a computer-aided engineering (CAE)
Fatih Karaçam
doaj   +1 more source

Single- and double-entry volume equations for Crimean pine stands in Kastamonu Regional Directorate of Forestry

open access: yesTurkish Journal of Forestry, 2018
The aim of this study was to develop single- and double-entry over-bark and under-bark stem volume equations for pure and natural Crimean pine (Pinus nigra J.F.Arnold subsp. pallasiana (Lamb.) Holmboe) stands in Kastamonu Regional Directorate of Forestry.
Oytun Emre Sakıcı   +2 more
doaj   +1 more source

Evaluation of mental models of prospective science teachers on chemical reactions [PDF]

open access: yesJournal of Pedagogical Research, 2021
The aim of this study is to examine prospective science teachers' (PSTs) mental models and meanings for the concept of chemical reaction. For this purpose, this study adopted a phenomenological research design including 48 PSTs.
Volkan Bilir, Sedat Karaçam
doaj   +1 more source

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