Abstract: A delivery system for the deployment of an implant includes a delivery catheter, a tissue penetrating element disposed on an open distal end of the delivery catheter, and a guard member comprising a proximal portion disposed over, and translatable relative to, the respective tissue penetrating element and distal end of the delivery catheter, the guard member defining a lumen configured to receive and cover the tissue penetrating element, the lumen defining a longitudinal axis of the guard member, wherein the proximal portion of the guard member transitions into a split-open distal portion adjacent a distal opening of the lumen, the split-open distal portion comprising a contour configured to engage and deflect the tissue penetrating element at an angle relative to the longitudinal axis of the guard member when the guard member is translated proximally relative to the tissue penetrating element.

Abstract: Disclosed herein are a novel crown ether with bulky and rigid groups and a method for preparing the same. Also provided are a lithium adsorbent comprising the novel crown ether immobilized onto a nanofiber, and a method for preparing the same. The lithium-selective crown ether is synthesized through intermolecular cyclization between a bulky epoxide and a rigid aromatic compound such as 1,2-dihydroxybenzene, and can effectively recover lithium ions. For use as a lithium adsorbent, the novel crown ether with both bulky and rigid subunits is immobilized onto a polymer nanofiber. The crown ether-immobilized polymer nanofibers may be formed into a recyclable membrane.

Abstract: Disclosed herein are a novel crown ether with bulky and rigid groups and a method for preparing the same. Also provided are a lithium adsorbent comprising the novel crown ether immobilized onto a nanofiber, and a method for preparing the same. The lithium-selective crown ether is synthesized through intermolecular cyclization between a bulky epoxide and a rigid aromatic compound such as 1,2-dihydroxybenzene, and can effectively recover lithium ions. For use as a lithium adsorbent, the novel crown ether with both bulky and rigid subunits is immobilized onto a polymer nanofiber. The crown ether-immobilized polymer nanofibers may be formed into a recyclable membrane.

Abstract: A wet type scrubber for exhaust gas includes a wet scrubbing chamber which is disposed such that the exhaust gas introduced through an inlet flows horizontally toward an outlet and includes an overflow opening formed at a position in a side surface thereof spaced apart by a certain distance upwardly from the bottom thereof an eliminator which is disposed within the wet scrubbing chamber and installed such that the bottom thereof is positioned below the overflow opening, and includes a plurality of bent blades arranged to form a passage for the exhaust gas; an oil/water separation tank for scrubbing liquid received from the overflow opening by sequentially passing the liquid through a plurality of reservoirs, and a spray nozzle installed to spray the liquid into an inlet-side space of the wet scrubbing chamber.

Abstract: A tile lighting system is provided in which an interior space of a tile is lit by LEDs, such as in a grid or edge-lit formation, and a light diffusing panel is disposed over the interior space. The tile lighting system can be combined with others to tile any surface, such as a floor, ceiling, wall, or building exterior. Lighting control signals can be supplied to generate a wide range of effects on the tile lighting units, including effects coordinated among different tile lighting units. Two- and three-dimensional embodiments are contemplated.

Abstract: A tile lighting system is provided in which an interior space of a tile is lit by LEDs, such as in a grid or edge-lit formation, and a light diffusing panel is disposed over the interior space. The tile lighting system can be combined with others to tile any surface, such as a floor, ceiling, wall, or building exterior. Lighting control signals can be supplied to generate a wide range of effects on the tile lighting units, including effects coordinated among different tile lighting units. Two- and three-dimensional embodiments are contemplated.