a practical application of the spherical involute surface to the forged straight bevel gears is provided and demonstrated in this work. conjugate (pure involute) theoretical surfaces are developed from the input design parameters. the surfaces are modified to suit the actual application (automotive differential). the unloaded (or low load) tooth contact analysis of modified surfaces is performe...

The usual concept of the admissibility of an experimental design (e.g., see [6], pp. 800-812) is based solely on variance considerations and no allowance is made for the possible occurrence of bias errors resulting from the use of an incorrect model. This limitation is not entirely desirable in a response surface setting where a graduating function Y(:~;Q) such as a polynomial will always fail ...

objective(s): iscomatrix vaccines have now been shown to induce strong antigen-specific cellular or humoral immune responses to a broad range of antigens of viral, bacterial, parasite or tumor. in the present study, we investigated the role of iscomatrix charge in induction of a th1 type of immune response and protection against leishmania major infection in balb/c mice.  materials and methods:...

In this paper, a robust design of screw wheel is presented, based on the Taguchi method to accelerate screw-based crawling robot. Screw-based robots have been studied before, but their application limited because speed. To solve problem, applied for geometry driving granular surfaces, such as desert sand, which has not before. Each four parameters determining and two user conditions were set at...

Cutting tests were conducted to medium carbon steel using HSS tools with cutting fluid. The experimental design used was based on response surface methodology (RSM) using a central composite design. Chips were collected at different machining conditions and thickness and microhardness measurements taken and analyzed using “DESIGN EXPERT 7” experimental design software. Mathematical models of th...