This is the first study to quantify the measurement error due to the physical thickness of Fujifilm for several material combinations relevant to orthopaedics. Theoretical and experimental analyses were conducted for cylinder-on-flat indentation over a series of forces (750 and 3000 N), cylinder diameters (0 to 80 mm), and material combinations (metal-on-metal, MOM; metal-on-polymer, MOP; metal...

In this paper, the flow-induced oscillation of a prismatic body, viz., a square section cylinder (test cylinder) under interference conditions is analysed considering it as representing a typical building structure. The analysis is carried out using a data-mining tool called ‘Decision Tree’ mainly in view of assessing the safety of the structure (test cylinder) with respect to the vibratory amp...

We retrieved 159 femoral heads at revision surgery to determine changes in surface configuration. Macroscopic wear of the head was observed in three bipolar hip prostheses as a result of three-body wear. There was a considerable change in surface roughness in the internal articulation of bipolar hip prostheses. Roughness in alumina heads was almost the same as that in new cobalt-chromium heads....

background: in the history there are long backgrounds to coexistence of human and domesticated animal. counter effect of more than 150 common diseases threat the human and domesticated health. due to climate condition of mazandaran, in the north of iran, the objective of the present study is to evaluate health conditions of the industrial animal husbandries (iah) during 2000-2001 . methods: thi...

Under special conditions bacteria excrete an attractant and aggregate. The high density regions initially collapse into cylindrical structures, which subsequently destabilize and break up into spherical aggregates. This paper presents a theoretical description of the process, from the structure of the collapsing cylinder to the spacing of the final aggregates. We show that cylindrical collapse ...

Due to its desirable mechanical properties, compacted graphite iron (CGI) has been used replace conventional gray cast (CI) in various applications, such as automotive engine blocks and cylinder heads. However, the poor machinability of CGI can lead excessive tool wear consequently high manufacturing costs. Various strategies have developed improve CGI, including optimizing machining parameters...