ABSTRACTBone healing is one of the important issues in clinical areas such as oral, maxillofacial, orthopedic, and plastic surgery. Especially in the implantation process to be performed in dental applications, the structure of the jawbone and the quality of the bone density are very important for the performance of the process. In the area of tissue engineering, there are biodegradable bone implants with biocompatible synthetic polymers that give successful results in many areas. The dental barrier membrane is a synthetic bone graft based on Poly (DL-lactide). It is used in many dental applic ...Daha fazlası
ÖZETHidrolik ve pnömatik sistemlerin uzun süreli sorunsuz çalışmasında önemli bir etkiye sahip olan kılavuz elemanlar, hidrolik ve pnömatik silindirlerde eksene dik olan kuvvetlere direnerek metal-metal temasını önlemek için kullanılır. Kılavuz elemanlarda en sık kullanılan malzemelerden biri olan kompozit malzemelerde, fiber yönelimleri ve takviye malzeme oranları gibi farklı parametreler, ürünün kalitesini ve mukavemetini büyük ölçüde etkiler. Bu çalışmada, kompozit kılavuz elemanların sonlu elemanlar yöntemi kullanılarak malzemeden ürüne geçiş aşamalarının ve Digimat, Moldex3D ve MSC Marc p ...Daha fazlası
ABSTRACTIn this study, the effects of world governance indicators on tourism were empirically analysed, from the 2005 to 2018 period. A literature review for governance is included in the first part. The second part contains the definition of world governance indicators (WGI). In the last part, panel co-integration, and causality analysis have been carried out worldwide within 137 countries. As a result of the analysis, a long-run relationship was found only between the change in the number of tourists and the political stability - no violence index. Also, other world governance indexes voice ...Daha fazlası
ABSTRACTToday, environmentally friendly, high-strength and lightweight engineering materials are becoming increasingly important for the automotive and aviation industries. For this purpose, it is critical to combine different materials correctly and to create a reliable hybrid structure. Adhesives have a huge market share among the joining methods due to their low-stress concentration, high formulation possibility, good fatigue resistance, and sealing advantages. However, surface properties and surface treatments play an active role in determining joint performance. In this thesis, the effect ...Daha fazlası
ABSTRACTIndustrial robots currently used in industry all have their own interfaces and unique languages. These commonly used interfaces and languages are often limited to industry needs. Although there are several robotic solutions, practically all of them can't rectify problems on their own. When a program is required for a more complex task, machine vision locates objects and puts them in desired locations and for situations such as applying the correct force for assembly operations by measuring with force-torque sensors, they often need third-party programs as existing systems cannot respon ...Daha fazlası
ÖZETDaralan tüp ve borulardaki damla deformasyonu, gözenekli ortamlarda, mikro akışkan cihazlarda vb. önemli bir rol oynar. Damlalar, viskozite oranına, Kapiler sayısına, damla hacmine ve daralma geometrisine bağlı olarak kopma mekanizması ile parçalanabilir. Simetrik tek/periyodik daralmaları dikkate alan önceki çalışmalardan farklı olarak, gözenekli ortamlarda doğal olan veya deformasyon ve/veya parçalanma mekanizmasının kontrolü için mikro akışkan cihazlarda kullanılabilen asimetrik daralmaya sahip bir tüp modelliyoruz. Aksi-simetrik sınır integral denklemlerini kullanarak damlanın gelişimi ...Daha fazlası
ABSTRACTTorque fluctuations occur during combustion cycles of a four-stroke engine, and these fluctuations are transferred to the drivetrain of a vehicle as torsional vibration. Hence, the noise and vibration in gears clash, ping, and load change vibration cause jerky motion and reduced driving comfort. In vehicles, it is desirable to transmit this vibration generated by the engine to the drivetrain of the vehicle at the lowest level. Different technologies are used for this purpose. One of them is Dual Mass Flywheel (DMF). DMF is a complex system that includes rotational inertia, torsional st ...Daha fazlası
ÖZETÜriner kateterler mesanesini boşaltamayan hastalarda yaygın olarak kullanılmaktadır. Fakat, kateter yüzeyleri mikroorganizma adezyonuna uygunlardır ve bu durum, ilerleyen dönemlerde çeşitli komplikasyonlara neden olmaktadır. Komplikasyonların önlenmesine yönelik çeşitli kateter malzemeleri ve farklı yüzey modifikasyonları denenmiş, fakat bu yaklaşımların çoğu başarısız olmuş ve bazıları çeşitli yan etkiler göstermiştir. Bu nedenle, komplikasyonların önlenmesi ve tedavisi için yeni yöntemlere ihtiyaç duyulmaktadır. Antimikrobiyal peptidler geniş çaplı aktivite göstermeleri, ilaç direncine n ...Daha fazlası
ABSTRACTThe rapid development of robot technology has started to be emphasized medical robotics increasingly. The potential of robotic systems to facilitate the work of healthcare workers, minimize human errors, restore function to lost limbs, and enable operations that cannot be performed due to distance or other factors have made this field increasingly popular.Surgical robotics applications are the trend subfield of medical robotics. In these applications, it is aimed to reach the desired task with certain precision and accuracy. Therefore, performance of the control system is very crucial ...Daha fazlası
ABSTRACTCopper is one of the most conductive metallic materials. For most metals, additive manufacturing is prone to laser or electron beam powder bed fusion processes. Due to copper's high reflectivity and very high thermal conductivity, it is difficult to print 3D parts with powder bed fusion methods. Binder jetting, which is a developing 3D printing technology, has a high potential for use in order to eliminate these problems of copper and low processing costs. In this study, the effect of particle size distributionand oxygen level of the copper powders on part density, tensile strength, su ...Daha fazlası
ABSTRACTAlthough gastronomy has always been a significant component of tourism products and tourist experience, with the changing tourist motivations and tourism trends gastronomy tourism has developed as a major type of alternative tourism all around the world since the 90s. Today, gastronomic values of the destinations attract many tourists and governments pay importance to gastronomy tourism as a tool in increasing for their tourism incomes. Social media is a digital platform that make individuals able to digitally interact with each other based on their interests. It has modified the way o ...Daha fazlası
ABSTRACTThe oil and natural gas reside in microscopic pores of subsurface rock layers called a reservoir rock. Besides there always at least two phases exist in oil and gas reservoirs. Therefore, the flow and displacement of oil into the production wells are influenced significantly by capillary forces. Due to the capillary and surface forces, the recovery of oil always remains at low percentages usually between 20 to 40. In order to increase the recovery factor several secondary and enhanced oil recovery techniques have been developed and implemented. The two secondary recovery methods namely ...Daha fazlası
6698 sayılı Kişisel Verilerin Korunması Kanunu kapsamında yükümlülüklerimiz ve çerez politikamız hakkında bilgi sahibi olmak için alttaki bağlantıyı kullanabilirsiniz.