This thesis presents a study of the effect of controllable riveting parameters, mainly squeeze force, rivet length, rivet diameter tolerance, hole countersunk depth and hole diameter tolerance, on the quality of formed rivet. The quality of a formed rivet is determined by the geometry of its head formation and the extent to which the hole is filled. The study determines maximum allowable tolera...

There are some artificial and natural materials on foundation of heap leaching structures. Geomembrane liner is the most important artificial isolated layer of these structures. The thickness of this layer is about 1 to 2 mm. Foundation overall settlement of such structures changes the primary length of the geomembrane layer. If the strain of geomembrane is more than allowable one, the layer wi...

Multimedia transmission over wireless local area networks (WLANs) is a challenging task due to the varying nature of the wireless channel as well as the inherent difference between multimedia traffic and data traffic. In the MAC layer, a single bit error in the packet can lead to the entire packet being discarded. This results in a higher packet error rate for higher payload sizes. Retransmissi...

Swordfish (Xiphias gladius L., 1758) is an apex predator, highly migratory meso-pelagic fish widely distributed in the Atlantic Ocean and Mediterranean. As top predators, this fish may be the end reservoir of the bioaccumulation of trace elements in a food chain because they occupy higher trophic levels and are an important food source, causing them to be potentially hazardous to consume. This ...

This paper presents and discusses direct linkage identiication procedures based on nonlinearity/non-monotonicity detection. The algorithm we propose checks arbitrary nonlinearity/non-monotonicity of t-ness change by perturbations in a pair of loci to detect their linkage. We rst discuss condition of the linkage identiication by nonlinearity check (LINC) procedure (Mune-tomo & Goldberg, 1998) an...

In connection with "maximum allowable concentrations in biological materials ", I should like to express some views on the value of measuring mercury and cadmium concentrations in urine. These remarks are based on findings in human subjects and in experimental animals. Mercury which is absorbed into the body is largely excreted in the urine. From this. aspect, therefore, determination of the ur...

A genetic sequence is simply a way of representing DNA, RNA, and proteins by a character string, an unbroken sequence of letters. A sequence has a finite length and contains only those characters belonging to a specified alphabet. An alphabet is a set of allowable characters. DNA uses a 4-character alphabet that consists of {A,C,G,T}. Likewise RNA uses a 4-character alphabet {A,C,G,U}. Proteins...

Deformation zones along the down trajectories of skelps forming using mill TESA10-50 (Pipe Electrical Welding Unit) were considered. For pipes with 50×1.5 mm diameter, strained conditions for identified different options length as-formed skelp initial position upward gradient within range H = 0÷50 mm. It was determined that increase in trajectory contributed to decrease longitudinal strain valu...