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"Composite sandwich constructions are very widely employed in the modern aircraft industry, honeycomb panels among them. The principal defects of honeycomb sandwiches are cover detachment because of cell collapse or poor adhesive, which can lead to water penetration in cells. Recently, the thermal method of non-destructive testing (infrared thermography) has begun to be applied to the diagnostics of honeycomb constructions, and has some advantages over traditional methods. However, thermal processes are transient, and this complicates the selection of optimal parameters for monitoring. The purpose of this work is to investigate the possibilities of the thermal method for honeycomb panel inspection using computer simulation. The COMSOL Multiphysics package was used for the simulations. A 3D model of the honeycomb panel was proposed, and two possible defects considered: the detachment of the panel cover from the filler and the presence of water in the defective cell. The implementation of the proposed 3D model made it possible to investigate the effect of a defect on the thermal field of the panel surface. The simulation results showed that optimal testing time is significantly different for various types of panels. The correct selection of testing parameters increases the accuracy of the testing procedure. The results of experimental investigation confirmed the adequacy of the proposed model for thermal testing."

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Tesis ini membahas mengenai penggunaan model tiga dimensi sebagai sarana belajar operasi sumbing bibir satu sisi dengan teknik fisher. Tujuan studi ini adalah mengevaluasi pengalaman membuat desain pra-operasi menggunakan model tiga dimensi dibandingkan dua dimensi. Dilakukan studi eksperimental menggunakan randomized sampling untuk menentukan akurasi anatomis dan kepuasan penggunaan model tersebut. Data menunjukkan bahwa penggunaan model tiga dimensi dapat menjadi sarana belajar tunggal untuk mencapai pemahaman dan persepsi dalam hal desain pra operasi. Penelitian lanjutan dapat mengevaluasi akurasi hasil pembelajaran pada pasien.

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The focus of this study is on evaluating three dimensional model as a learning tool for unilateal labioplasty using fisher technique. This study aim to evaluate the experience in preoperative marking of unilateral cleft lip repair on three-dimensional model compared to two-dimensional model. An experimental study conducted using randomized sampling to measure the anatomical accuracy and satisfaction of pre operative marking of unilateral cleft lip repair  using fisher modification technique on three dimensional model over two dimensional model. Result shows that three dimensional model could be used as an efficient single learning tools to have the same level of perceptive and understanding of the design points. Further research should evaluate the effectivenes of this learning tool by assessing its accuracy result in real patients.

 

 

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