AMAÇ: Bu çalışmanın amacı, in-vitro ortamdaki genişletme esnasında Leaf Ekspansiyon vidalarının oluşturduğu reaktif kuvvetleri belirlemektir. GEREÇ VE YÖNTEM: Çalışmada 450 g-6 mm, 900 g-6mm, g-9 mm ve olmak üzere 4 çeşit vidası kullanılmıştır. vidaların açılma (uzama) miktarına bağlı olarak çeneye uyguladığı kuvvetler çalışmaya özgü tasarlanarak üretilen küçük boyutlu bir kuvvet ölçüm cihazı i...

Aim: To evaluate and compare the sorption solubility of three modified glass ionomer cements –Glass Hybrid Restorative System (Equiaforte), Zirconomer Improved resin cement (RMGIC) in artificial saliva. Materials And Methods: A total 45cylindrical specimens (4mm diameter 6mm height) were prepared for each material following manufacturer’s instructions. After subjecting to thermocycling 500 cycl...

Armor steel is a special grade of that commonly designed for providing protection the army resources from different piercing ammunitions. This must be assessed through its mechanical properties, and ballistic resistant to confirm their ability withstand resistance armor-piercing ammunition, before being subjected use. Case study armor sheet 6mm thickness has been normal test EN1522, one project...

Hydroxyapatite is a material that has the same structure and composition as main minerals of human teeth bones. This study's purpose was hydroxyapatite synthesis determining effect variations in ball sizes, ratio mass precursors to balls size, milling time, size crystals particles, surface area morphology produced by mechanochemical method. Two different sizes (3mm 6mm) three powder 1:1.44; 1:2...

Concrete is poor in tensile property due to its brittle nature. Improvement the mechanical properties of concrete carried by combining rebars and fibers concrete. Earlier research state that non-metallic fibres improve pre-crack performance metallic post crack performance. Short resist micro-cracks at an early stage long macro-cracks. The combination short makes much effective. In this study, i...

Austenitic stainless steel SS304 grade was welded with active Tungsten Inert Gas (TIG) welding process by applying a flux paste made of SiO2 powder and acetone. SiO2 flux application improves the weld bead depth with a simultaneous reduction in weld bead width. The improvement in penetration results from arc constriction and reversal of Marangoni convection. Experimental studies revealed that t...

Certain species of Hermetia illucens, also known as the Black Soldier Fly(BSF), were found in a compost plant in Roorkee located in Northern India. Its larvae arevoracious eaters of organic waste, hence can play an ecologically-important role in solidwaste management. Morphological analysis of various stages of BSF life cycle by SEMshowed that its body along with its wings is densely covered wi...

Automatic co-alignment of optical and virtual colonoscopy images can supplement traditional endoscopic procedures, by providing more complete information of clinical value to the gastroenterologist. In this work, we present a comparative analysis of our optical flow based technique for colonoscopy tracking, in relation to current state of the art methods, in terms of tracking accuracy, system s...

Abrasive water jet machining is a process that removes material using sand and water. This versatile uses high-pressure loaded with abrasive particles of mineral origin. It allows the all materials particularly suitable for or stripping applications on hard metal sheets. Due to local action, limits heating deformation. During machining, removal occurs abrasion erosion [1]. The identification re...