Helical compression springs are generally synthesized and evaluated by determining the maximum torsional stress, fatigue life, natural frequency, and/or load loss due to stress relaxation. To this end, researchers have developed finite element analysis (FEA) modeling methods to simulate the design performance of helical compression springs. The intent of this paper was to make a useful contribu...

This paper deals with the design of stellarator field simple coil set. In order to realize by set, tilted toroidal coils are used for creating rotational transform. Sixteen TF create small radial and large vertical field. If axisymmetric poloidal can compensate larger coils, be realized. The formation clear nested flux surfaces is confirmed, transform proportional tilting angle coil. main featu...

OBJECTIVE To investigate the impact of coil design on the distribution of the coil mass in a controlled in vitro experiment. A secondary objective was to study the relationship between angiographic occlusion, packing density and coil mass uniformity. METHODS Seven silicon side wall aneurysm models were embolized in each arm with a different coil design under fluoroscopic guidance. Packing den...

Kinesin is a dimeric motor protein that can move for several micrometers along a microtubule without dissociating. The two kinesin motor domains are thought to move processively by operating in a hand-over-hand manner, although the mechanism of such cooperativity is unknown. Recently, a approximately 50-amino acid region adjacent to the globular motor domain (termed the neck) has been shown to ...

Summary: Waggawagga is a web-based tool for the comparative visualization of coiled-coil predictions and the detection of stable single a-helices (SAH domains). Overview schemes show the predicted coiled-coil regions found in the query sequence and provide sliders, which can be used to select segments for detailed helical wheel and helical net views. A window-based score has been developed to p...

Foundation module, the complex helical cuts are produced in a more efficient manner. Also, since Pro/E can easily construct variable pitch helixes (see Figure 1) the process of creating the helical paths was greatly simplified. The paths produced in this manner were parametric, meaning they could easily be changed without the need to reconstruct them as the design evolved. A 30% Snake supercond...