Abstract: A micro-fluidic cartridge enables analysis of biological samples of fluid form particularly by means of optical systems. The micro-fluid cartridge includes a body, at least one fluid inlet located on the body, at least one channel connected to fluid inlet from one end and allowing flow of fluid there through, at least one first chamber arranged in a fluid communication with channel on the body, at least one biological chip located inside the first chamber and structured to keep certain components inside the fluid, at least one cover connected to the body in a manner preventing leakage of liquid from channel to outer environment on the body and having light penetration on part corresponding to at least biological chip.

Abstract: A connection bolt arrangement typically used for connecting two structural members to each other, for example in aircraft construction, includes a conically tapered connection bolt that is force-locked or frictionally engaged in an expansion sleeve so as to cause a radial outward expansion of the sleeve and thereby tightly hold the structural components. An apparatus for releasing such a connection bolt arrangement includes two levers that are pivotably connected to each other, a stamping actuator arranged between respective first ends of the two levers, a pulling extraction device mounted at the second end of the first lever, and a pushing block mounted at the second end of the second lever. The actuating force applied by the actuator is transmitted through the levers and applied to the connection bolt and to the expansion sleeve in opposite directions so as to tend to push the bolt out of the sleeve.