A meta-heuristic applying for the transportation of wood raw material

Ülkemiz ormancılığında asli ürün, odun hammaddesidir. Dolayısıyla bu ana ürünün kalite ve miktar kaybına uğramadan depolara ve oradan da tüketiciye ulaştırılması için bir işlem organizasyonu gerekmektedir. Bu organizasyon meşcerede, kesim anından başlayıp yol kenarı depolarına ya da rampalara oradan da ana depolara ve hatta fabrikalara kadar devam eder. Oldukça karmaşık bir yapıya sahip olan bu problemin çözümünde, taşımada en uygun güzergâhın araştırılmasını amaçlayan bilgisayar destekli modeller kullanılabilmektedir. Bu çalışmada, odun hammaddesi taşımasının önemi ve ülkemizdeki durumu, odun hammaddesi taşımasının sınıflandırılması, bilgisayar destekli sezgisel ve meta-sezgisel yöntemler ve bu yöntemlerin odun hammaddesi taşımasında kullanım olanakları üzerine bir değerlendirme yapılmıştır.Primary products in Turkish forestry are wood material. Thus, an operational organization is necessary to transport these main products to depots and then to the consumers without quality and volume loss. This organization starts from harvesting area in the stand and continues to roadside depots or ramps and to main depots and even to manufactures from there. The computer-assisted models, which aim to examine the optimum path in transportation, can be utilized in solving this quite complex problem. In this study, an evaluation has been performed in importance and current status of transporting wood material, classification of wood transportation, computer-assisted heuristic and meta-heuristic methods, and possibilities of using these methods in transportation of wood materials

Geology and petrology of the Simav Magmatic Complex (NW Anatolia) and its comparison with the Oligo-Miocene granitoids in NW Anatolia: implications on Tertiary tectonic evolution of the region

The Oligo-Miocene granitic plutons and their related volcanic-subvolcanic successions form a NW-SE trending magmatic belt along the northern border of the Menderes Massif. This belt evolved within a nappe package consisting of the Menderes metamorphics, Sakarya Continent, Afyon Zone and TavAYanlA +/- Zone and also intruded this nappe package. The Ezine, Evciler, Eybek, Kozak, Ala double dagger am, Koyunoba, Egrigoz and the Baklan plutons emplaced along this belt and show similarities in their internal structures, emplacement mechanisms, and petrological characteristics. These different granitic plutons cut and stitch various combinations of the nappe package of the above-mentioned tectonic belts, and evolved during and following the Alpine collision. They all show characteristic map patterns of shallow-seated plutons and range from granite to monzogranite. The granitic plutons display calc-alkaline, I-type and post-collisional geochemical characteristics. The Egrigoz, Koyunoba plutons and their subvolcanic-volcanic phases (Simav Magmatic Complex) were studied in detail. The geochemical characteristics and field occurences of the Simav Magmatic Complex were compared to the other magmatic associations in western Anatolia and it was determined that it is of collisional origin and not related to an extensional tectonic regime as suggested in some recent studies