Abstract: A hydrogen storage system is disclosed and includes a storage unit including a plurality of unit storage containers, in which metal hydride materials are respectively provided in an interior thereof and which are connected to each other in parallel, and a thermal fluid line defining a thermal fluid passage, which passes via the plurality of unit storage containers continuously and through which a thermal fluid flows for heating or cooling the unit storage containers, thereby enhancing a storage performance and an efficiency of the hydrogen.

Abstract: A hydrogen storage device includes a storage container having an accommodation space in an interior thereof, a first metal hydride material provided in the interior of the storage container and that stores hydrogen, and a second metal hydride material provided in the interior of the storage container and that stores the hydrogen at a pressure that is different from that of the first metal hydride material. An advantageous effect of restraining an excessive rise of a pressure of the storage container and enhancing safety and reliability may be obtained.

Abstract: A hollow fiber membrane restraining apparatus comprising: first and second horizontal wall parts having slits therethrough, wherein the inner walls face one another; and two vertical wall parts erected facing both end parts of the first horizontal wall parts in a horizontal axis direction, wherein a mat stacking part is formed and stacked on the first horizontal wall part such that end parts of mats on which hollow fiber membranes are arranged in a row can be aligned, and the second horizontal wall part is locked onto the vertical wall parts by pushing and restraining the mat stacking part; a header apparatus comprising the same; a hollow fiber membrane module; and a method for manufacturing a hollow fiber membrane module are provided.

Abstract: A hollow fibre membrane restraining apparatus comprising: first and second horizontal wall parts having slits therethrough, wherein the inner walls face one another; and two vertical wall parts erected facing both end parts of the first horizontal wall parts in a horizontal axis direction, wherein a mat stacking part is formed and stacked on the first horizontal wall part such that end parts of mats on which hollow fibre membranes are arranged in a row can be aligned, and the second horizontal wall part is locked onto the vertical wall parts by pushing and restraining the mat stacking part; a header apparatus comprising the same; a hollow fibre membrane module; and a method for manufacturing a hollow fibre membrane module are provided.

Abstract: This invention relates to a wavelength tunable spectrometer and a wavelength tuning method thereof, and more particularly to a wavelength tunable spectrometer and a wavelength tuning method thereof which are capable of providing the highest efficiency of wavelength of applied light without replacement of a diffraction grid or without operation of an observed portion.

Abstract: The present invention relates to an apparatus and method for coating carbon nano tubes, which is capable of coating carbon nano tubes on a film at the same time when the carbon nano tubes are produced, unlike a wet method, thereby reducing the number of processes and costs and improving performance. The apparatus and method has an advantage of directly applying a CNT-containing gas obtained by thermal chemical vapor deposition to a film to obtain a CNT coating film with the reduced numbers of processes and high quality through improvement of an electrical property by maintenance of dispersibility and CNT length, as compared to a conventional wet process.