Abstract: In an aspect of the invention, an array of microprotrusions is formed by providing a mold with cavities corresponding to the negative of the microprotrusions, casting atop the mold a first solution comprising a biocompatible material and a solvent, removing the solvent, casting a second solution atop the first cast solution, removing the solvent from the second solution, and demolding the resulting array from the mold. The first solution preferably contains an active ingredient.

Abstract: A microneedle applicator is provided which has two roughly concentric portions which may be, for example, a solid disk and an annulus surrounding it. On the skin-facing side of the inner portion of the applicator a microneedle array is located. The outer portion of the applicator is placed against the skin, contacting it at a zone. The microneedle array is then pressed towards the skin.

Abstract: A process of mechanical separation of embryos from seeds for genetic transplantation employs counter-rotating cylinders together with one or more culling, hydration, separation, and viability testing steps to provide high-throughput of viable, transplantable tissue.

Abstract: Disturbing components of the Doppler frequency spectrum in a radar receiver, having coherent integration, are suppressed. In this technique, the order of interference suppression and coherent integration is changed such that the echo values are first fed to a circuit to effect a Fourier transformation. Then, the disturbing components in the frequency band are deliberately suppressed, and a sub-optimal detection method suitable for real-time operation is derived from the optimum detection model in that sub-matrices symmetrical with the principle diagonal are formed from the power spectrum matrix, through which approximate decorrelation of the disturbing components is achieved.