INTRODUCTION Knee osteoarthritis is a progressive degenerative disease which affects meniscal tissue. The aim of this study was to determine the differences in collagen type I expression in macroscopically unaltered and osteoarthritic menisci, and correlate the expression with the grade of macroscopic damage, age and body mass index of patients, preoperative condition of anterior cruciate ligam...

Focusing on the diversity, complexity and uncertainty of the third-party damage accident, the failure probability of third-party damage to urban gas pipeline was evaluated on the theory of analytic hierarchy process and fuzzy mathematics. The fault tree of third-party damage containing 56 basic events was built by hazard identification of third-party damage. The fuzzy evaluation of basic event ...

neither damage mechanics model nor elastoplastic constitutive law can solely describe the behavior of concrete satisfactorily. in fact, they both fail to represent proper unloading slopes during cyclic loading. to overcome the disadvantages of pure plastic models and pure damage approaches, the combined effects need to be considered. in this regard, various classes of plastic-damage models have...

Many aerospace, civil, and mechanical systems continue to be used despite aging and the associated potential for damage accumulation. Therefore, the ability to monitor the structural health of these systems is becoming increasingly important. A wide variety of highly effective local nondestructive evaluation tools are available. However, damage identification based upon changes in vibration cha...

This paper extends some authors’ previous approaches to models and methods based on fuzzy sets and fuzzy logic, for the seismic fragility updating and seismic damage evaluation, in their contributions to the IFIP 8 Conference (Krakow – 1998), SMiRT 16 (Washington DC – 2001) and SMiRT 18 (Beijing – 2005) Conferences. A short survey of such earlier and more recent proposals for applying fuzzy con...

background caroli disease is a rare inherited disorder characterized by dilatation of the intrahepatic bile ducts. the presented case is a female middle age patient that during clinical and para-clinical evaluation for an unrelated compliant found that has caroli disease. although, the disease is hereditary but the family history was negative. after three years follow up, no involvement of kidn...

This study was conducted to evaluate the tissue of liver, gills and kidney Rutillus caspicus exposed to concentrations of 50, 100, 150 mg of Methyl tert-butyl ether, for 7, 14, 21 days. Average water temperature of 19±1 °C, water oxygen of 7.6 ± 0.2 mg/l and zero salinity were measured. A total of 156 fishes were studied in this experiment. In the first, second and third week of the test, three...