Abstract: Optically pure esomeprazole and its salt can be simply prepared by dissolving (S)-(?)-binol, a weak base and the racemic form of omeprazole in a mixture of a water-compatible organic solvent and water at a high temperature, cooling the mixed solution to crystallize the inclusion complex of esomeprazole and (S)-(?)-binol, and removing the (S)-(?)-binol moiety from the crystallized inclusion complex.

Abstract: The present invention provides a digital imaging photodetector with a gas electron multiplier. The digital imaging photodetector comprises a gas electron multiplier detector. The gas electron multiplier detector includes a photoelectric converter for converting incident light into photoelectrons or Compton electrons; a gas electron multiplier (GEM) for receiving the photoelectrons or Compton electrons from the photoelectric converter and multiplying them; and a readout unit for receiving an electrical signal indicating a position where an electron cloud multiplied in the gas electron multiplier arrives on an anode, recognizing coordinates of the electron cloud based on the received signal, and outputting the coordinates of the electron cloud.

Abstract: The present invention provides a digital imaging photodetector with a gas electron multiplier. The digital imaging photodetector comprises a gas electron multiplier detector. The gas electron multiplier detector includes a photoelectric converter for converting incident light into photoelectrons or Compton electrons; a gas electron multiplier (GEM) for receiving the photoelectrons or Compton electrons from the photoelectric converter and multiplying them; and a readout unit for receiving an electrical signal indicating a position where an electron cloud multiplied in the gas electron multiplier arrives on an anode, recognizing coordinates of the electron cloud based on the received signal, and outputting the coordinates of the electron cloud.

Abstract: Optically pure esomeprazole and its salt can be simply prepared by dissolving (S)-(?)-binol, a weak base and the racemic form of omeprazole in a mixture of a water-compatible organic solvent and water at a high temperature, cooling the mixed solution to crystallize the inclusion complex of esomeprazole and (S)-(?)-binol, and removing the (S)-(?)-binol moiety from the crystallized inclusion complex.

Abstract: Provided is a microwave tunable device including a ferroelectric/dielectric (Ba1-x,Srx)TiO3 (BST) thin film that can reduce dielectric loss of a ferroelectric/dielectric BST thin film. The microwave tunable device of the present research includes: a substrate; and a ferroelectric/dielectric (Ba1-x,Srx)TiO3 (BST) thin film of a (111) direction which is formed on the substrate. The technology of this research embodies a microwave tunable device by using a ferroelectric/dielectric BST thin film grown in the (111) direction to overcome the limitation of conventional technologies and improve the problem of dielectric loss.