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Öğe A cadaveric study: The relationship between sternum and internal thoracic artery(Japan International Cultural Exchange Foundation, 2021) Aydın D.D.; Özkan M.; Öztürk A.; Cıgalı B.S.Introduction: Internal thoracic artery is an artery which frequently used in coronary bypass operations. Morphological features such as the location, length, and separation point of the branches are important crucialy. Materials and Methods:. The measurements were made in 11 thorax dissections and morphological data of ITA were obtained and photographed At each sternebra level, a midpoint was determined. The line created by combining these points was called the paramedian line. The distance between the artery and this line in the 2-5 intercostal space was measured. The distance of the artery and the lateral margin of sternum from the was measured at 2-5 intercostal spaces. The length of artery and the branch-ing point was recorded also. Results: The length of the right internal thoracic artery (between 2-5. intercostal space) is 117.07 mm. The left one is 118.63 mm. Maximum length for the right and left ITA 135 mm and 135.5 mm, respectively. The distance between paramedian line and bifurcatio of right ITA 31.06 mm and left ITA 32.32 mm. Maximum distance between paramedian line and bifurcatio of right ITA is 42.45 mm and the left one is 53.8 mm. Discussion: ITA is commonly used artery for coronary revascularization. When left anterior descending artery is anastomo-sed with ITA, survival rate has been found 10% for ten years. However, there are some disadvantages. As a result of pleurotomy, it can/could be seen several complications: parenchymal trauma, pleural effusion, atelectasis and pulmonary complication. Its is crucial to preservation of pleural integrity during dissection to reach ITA. Thus, it is supplied respiratory mechanisms and mini-mized lung injury. Conclusion: Internal thoracic artery has a great importance in coronary revascularization. When the risk of complications in coronary bypass operations is considered, the length of this artery and its distance with sternum should be clearly deter-mined. It is vital in the postoperative period and prolonging the life span. © 2021 Japan University of Health Sciences & Japan International Cultural Exchange Foundation.Öğe Effect of High-Prandtl Number on Microscale Flow and Heat Transfer(Avestia Publishing, 2015) Kemerli U.; Özgür D.; Öztürk A.; Kahveci K.The effect of high-Prandtl number on steady fully developed microscale flow and heat transfer between two parallel plates exposed to a constant heat flux is investigated analytically in this study. The Prandtl number over several orders of magnitude (5 < Pr <103) as well as different Knudsen number (0 < Kn <0.1) and different modified Brinkman number (-0.1 < Br <0.1) are considered. The momentum and energy equations are solved for first order boundaries of slip velocity and temperature jump. The influences of the Prandtl number, Knudsen number and Brinkman number on the temperature distribution and heat transfer characteristics are discussed. © 2015, Avestia Publishing. All rights reserved.Öğe MHD slip flow between parallel plates heated with a constant heat flux(2013) Öztürk A.The steady fully developed laminar flow and heat transfer of an electrically conducting viscous fluid between two parallel plates heated with a constant heat flux is investigated analytically in the presence of a transverse magnetic field. The momentum and energy equations are solved under the first order boundary conditions of slip velocity and temperature jump. The effects of the Knudsen number, Brinkman number and Hartmann number on the velocity and temperature distribution and heat transfer characteristics are discussed. © 2013 TIBTD Printed in Turkey.Öğe Unsteady mixed convection over spinning isothermal bodies with blowing and suction(2000) Öztürk A.; Ece M.C.Initial development of the laminar thermal boundary-layer flow over an impulsively started translating and spinning axisymmetrical isothermal body with blowing and suction in the case of mixed convection is investigated. Velocity components and temperature are expanded in series in powers of the square root of time. Leading, first and second order functions are obtained analytically and the third, forth and fifth order functions are determined numerically. Application of the general results to a sphere shows that buoyancy driven aiding and opposing flows help surface suction in retarding and surface blowing in facilitating the onset of flow separation respectively. Surface heat flux is increased near the front stagnation point due to the axial inflow created by the body spin and enhanced by the circulating flow inside the separated region. Surface suction is found to increase the heat transfer while the surface blowing decreases it. Aiding and opposing flows increase the surface heat flux around the front and rear stagnation points respectively.Öğe Weight, height and BMI references in Elazi?: An east Anatolian city(2011) Pirinçci E.; Mümtaz Mazicio?lu M.; Berbero?lu U.; Açik Y.; Durmuş B.; Öztürk A.[No abstract available]
