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Higher education courses are increasingly created as student organized collections of interrelated modules. At the same time, frequent change of subject matter and knowledge in its background must be handled. Above and other factors created and recognized a need for efficient computer based course management. Conventional computer aided teaching methods are(More)
—Success in engineering activities mostly depends on success in transfer of human intent into product. Recently, product development applies product model as medium to describe product information in product data base. While modeling gives a great chance for the description of engineer's intent, current information based product models are not capable of(More)
Product model based engineering long history of which started with computer aided design, manufacturing, and engineering (CAD/CAM/CAE) solutions recently utilizes product model which represents product as a system. In this new generation of product model, parts and units of product are modeled on the physical level as formerly. However, this level is(More)
A main drawback for currently applied engineering modeling is that large models in the industry with so many unorganized inside and outside relations are hard to survey and understand by engineers at definition of new contributions. The authors developed a new concept and methodology to improve current product modeling by an extension to new content based(More)
During the past decade, engineering moved into virtual spaces in the leading industries and product model became a medium between communicating engineers. This change motivated the authors of this paper to make a development on currently prevailing product representations where human intent, engineering objective are not included in product models. Lack of(More)
Walled-off pancreatic necrosis and a pancreatic abscess are the most severe complications of acute pancreatitis. Surgery in such critically ill patients is often associated with significant morbidity and mortality within the first few weeks after the onset of symptoms. Minimal invasive approaches with high success and low mortality rates are therefore of(More)
  • L Horváth
  • 1980
At the Medical University of Pécs, Hungary, percutaneous transluminal angioplasty was performed on 252 lesions in 235 patients. Primary success rate was 75%. Long femoral artery occlusions were recanalized with a 66% patency rate in lesions 10-20 cm long and a 47% patency rate in lesions longer than 20 cm. These relatively high patency rates were attributed(More)
The authors report conclusions drawn from anatomical studies on ninety-two hand angiographies. The superficial and deep volar arcs were classified according to Coleman and Anson. The superficial arc was found to be incomplete in 66.3%, the deep arc in 9.8% of all cases. Variations in ramification of the digital arteries were divided in two groups, as they(More)