The load capacity of a manipulator depends on a load capacity of a joint or load capacities of some joints of the manipulator. Even if a manipulator could not handle an object because of its load capacity, some of its joints still have enough capabilities for the handling of the object. In this paper, we proposed a method to handle an object using available joints of the manipulators by introdu...

this syndrome is a genetical disorder with symptoms result from deficit in the formation of connective tissue, especially collagen fiber biosynthesis. in these patients, there is hyperelasticity and fragility of the skin and mucosa. injuries sever bleeding, internal bleeding and hemartrosis may be seen in these patients. wounds leave scars after healing. there is recurrent dislocation of the jo...

The value of scintigraphy in predicting development of new erosions in small peripheral joints was studied by visual evaluation of scintigrams and by three computerised methods. In 13 patients with newly diagnosed rheumatoid arthritis a total of 387 joints were examined clinically, scintigraphically, and radiographically. The follow up period was 24 months. Four eroded joints in three patients ...

Friction stir welding and tungsten inert gas welding techniques were employed to weld armor grade aluminum alloy to investigate the effect of welding processes on tensile behavior of weld joints. Tensile tests, Vicker microhardness tests and optical microscopy were performed on developed weld joints and base metal. Welding process influenced tensile behavior and microstructure of weld joints. F...

Besides the study on examining facet joints of lumbar spine by ultrasound in normal population, there has not been any related report about examining normal facet joints of lumbar spine by ultrasound so far. This study was aimed to explore the feasibility of ultrasound assessment of lumber spine facet joints by comparing ultrasound measure values of normal and degenerative lumber spine facet jo...

I have often imagined that nature is covered over with knitted material. If a loose thread can be located and pulled, one can see some of the underlying picture. With a bit of luck (and a research grant) one can, with the help of one's colleagues, continue to unravel the weave, row after row. Although none of us will live to see all of the picture, not even of a single disease, we may see enoug...

In 1969 Erd1⁄2os proved that if r 2 and n > n0 (r) ; every graph G of order n and e (G) > tr (n) has an edge that is contained in at least nr 1= (10r) 6r cliques of order (r + 1) : In this note we improve this bound to nr 1=rr+5: We also prove a corresponding stability result.

Let L be a set of n lines in R, for d ≥ 3. A joint of L is a point incident to at least d lines of L, not all in a common hyperplane. Using a very simple algebraic proof technique, we show that the maximum possible number of joints of L is Θ(n). For d = 3, this is a considerable simplification of the orignal algebraic proof of Guth and Katz [8], and of the follow-up simpler proof of Elekes et a...