摘要:
Disclosed are a cloned pig expressing green fluorescent protein (GFP) and a cloned pig having a 1,3-galactosyltransferase (GT) gene knocked out. Also, the present invention discloses methods of producing such cloned pigs, comprising the steps of establishing a somatic cell line; preparing a GFP-transfected or GT gene knock-out nuclear donor cell; producing a transgenic nuclear transfer embryo using the nuclear donor cell and a recipient oocyte; and transplanting the transgenic nuclear transfer embryo into a surrogate mother pig. The cloned pig expressing GFP of the present invention is useful for large-scale production of an animal disease model, and the GT gene knock-out cloned pig can be used as a organ donor allowing xenotransplantation in humans without hyperacute immune rejection.
摘要:
A semiconductor thin film using a self-assembled monolayer (SAM) and a method for producing the semiconductor thin film are provided. According to the semiconductor thin film, a uniform inorganic seed layer is formed by using the self-assembled monolayer so that the adhesion between an insulating layer and a semiconductor layer is enhanced and thus the surface tension is reduced, thereby allowing the semiconductor thin film to have high quality without defects.
摘要:
Disclosed herein are a soluble chalcogenide precursor compound and a method for preparing a chalcogenide thin film using the precursor compound by a solution deposition process, e.g., spin coating or dip coating. In the method, the use of the chalcogenide precursor as an inorganic semiconductor material soluble in organic solvents enables the preparation of a semiconductor thin film having excellent electrical and physical properties (e.g., crystallinity). In addition, a large-area thin film can be prepared by a solution deposition process, thus contributing to the simplification of procedures and reduction of preparation costs. Therefore, the method can be effectively applied in a wide variety of fields, such as thin film transistors, electroluminescent devices, photovoltaic cells and memory devices.
摘要:
A porous chalcogenide thin film having a microporous structure, a method for preparing the chalcogenide thin film and an electronic device employing the chalcogenide thin film, are provided. The porous chalcogenide thin film has superior crystallinity and can be applied as a semiconductor layer having superior electrical properties to the fabrication of devices by inserting functional metal or semiconductor nanoparticles into nanopores of the thin film.
摘要:
A wireless office communication system including a wireless internet base station (WIBS) encompassing a base station controller (BSC), a mobile switch controller (MSC), and an ethernet interface module for coupling the wireless internet base station (WIBS) to an existing internet protocol (IP) based network. A wireless office communication system can also be based on the conventional architecture comprising the base station transceiver subsystem BTS, BSC, and MSC. The WIBS or BTS is attached to a number of antennas via different and identifiable delay elements for the purpose of determining the serving antennas of mobile communication units. A location determination logic enables the system to handle handoffs between a WIBS or BTS and the external public communication system in an optimum manner. Handling handoff requests in this manner prevents unnecessary ping-ponging of hand off and can also increase the percentage of successful handoff by frequency monitoring of the quality of the mobile communication units located in the handoff transition area, particularly to the public communication system.