In order to ensure the high precision and good dynamic characteristics of dual-axis linear motor when machining components, tracking error contour should be reduced with more complex trajectory. this study, characteristic model position control is established by using modelling principle model, intelligent adaptive controller designed. addition, a new calculation method equivalent proposed inno...

In the deep Canada Basin, below the sill depth (about 2400 m) of the Alpha-Mendeleyev Ridge, potential temperature and salinity first increase with depth, then remain uniform from about 2600 m to the bottom (approximately 3500 m). Year-long moored measurements of temperature, salinity and pressure in these deep and homogeneous bottom waters reveal significant vertical excursions with periods of...

Most models of visual search are based on the intuition that humans choose fixation locations containing features that best match the features of the target. The optimal version of this feature-based strategy is what we term "maximum a posteriori (MAP) search." Alternatively, humans could choose fixations that maximize information gained about the target's location. We term this information-bas...

Cutting and packing problems are encountered in many industries, with different industries incorporating different constraints and objectives. The wood-, glassand paper industry are mainly concerned with the cutting of regular figures, whereas in the ship building, textile and leather industry irregular, arbitrary shaped items are to be packed. In this paper two genetic algorithms are described...

We propose a scheme for ultra-broadband and polarization-insensitive metamaterial perfect absorber (PA) by utilizing thin metal-insulator-metal (MIM) stack, which is comprised of an array cross-shaped titanium resonators, silica dielectric spacer, opaque slab. The bandwidth absorption (A) > 90% up to 2100 nm, ranging from the visible near infrared region. At wavelength range 400-2500 this shows...