Abstract: A renewable adsorbent enabling to adsorb cesium selectively and efficiently, and to reuse cesium by eluting adsorbed cesium, and its manufacturing method are provided. Polyethylene (PE)/polypropylene (PP) based non-woven fabric may be exposed with electron beam, PE/PP based non-woven fabric to which electron beam was exposed is contacted to the monomer solution containing acrylonitrile (AN), dimethyl sulfoxide (DMSO), Tween80 (polyoxyethylene sorbitan monooleate) as a surfactant, and AMP (ammonium molybdophosphate n-hydrate) as an inorganic ion exchanger, and then the inorganic ion exchanger (AMP) is supported directly by the non-ionic graft chain.

Abstract: A renewable adsorbent enabling to adsorb cesium selectively and efficiently, and to reuse cesium by eluting adsorbed cesium, and its manufacturing method are provided. Polyethylene (PE)/polypropylene (PP) based non-woven fabric may be exposed with electron beam, PE/PP based non-woven fabric to which electron beam was exposed is contacted to the monomer solution containing acrylonitrile (AN), dimethyl sulfoxide (DMSO), Tween80 (polyoxyethylene sorbitan monooleate) as a surfactant, and AMP (ammonium molybdophosphate n-hydrate) as an inorganic ion exchanger, and then the inorganic ion exchanger (AMP) is supported directly by the non-ionic graft chain.

Abstract: Filter media for liquid purification, which can remove metal compounds or metal ions containing in polishing or washing liquids such as alkali, acid solution or ultra-pure water used for silicon wafers of semiconductors. Removal of metals from various kind of liquid such as inorganic chemicals, organic solvent, or industrial waste water are also the subject of the present invention. The Filter media made of melt-blown nonwoven substrate comprising of aethylene/norbornene copolymer represented by the following formula [1] and/or a polycyclic norbornene polymer represented by the following formulae [2](a),(b),(c) as raw material, wherein said ethylene/norbornene copolymer and said polycyclic norbornene polymer have a glass transition temperature (Tg) selected in a range from 80 to 180° C. and melt volume rate (MVR) (ISO 1133, measuring conditions: 260° C., 2.

Abstract: A fibrous catalyst for production of biodiesel by transesterification of oil/fat and alcohol, in which a graft chain is introduced into a polymer fiber substrate through graft polymerization, and the graft chain has one or more functional groups selected from amino groups and quaternary ammonium groups, and a hydroxide ion.

Abstract: This invention relates to functional nonwoven filter media provided by radiation-induced graft copolymerization and its production method. Meltblown type of nonwoven (Meltblown) comprised of fine fibers, less than 8 micron in diameter, of polyolefin or polyamide is chosen as the suitable grafting trunk polymer. The production methods are composed of following steps, 1) irradiation less than 30 kGy dose to the Meltblown with electron beam or gamma ray; 2) graft copolymerization of emulsified vinyl monomer onto the Meltblown; and 3) chemical conversion of ion exchange group onto the grafted vinyl monomer. These steps are independently conducted in their suitable operation conditions.

Abstract: In a read operation, a memory circuit successively performs precharge, sense operation and data output operation, each in 0.5 cycle of a clock signal. A write detection circuit, in response to switching from a write operation to a read operation, sends a signal to the memory circuit to make it delay the read operation. The memory circuit delays the read operation by one cycle of the clock signal to prevent destruction of write data. Further, the write detection circuit sends to a processor a signal for switching whether to access the data bus or not, and causes the processor to stop access to the data bus while the read operation is being delayed. Thus, a semiconductor device that can increase data read speed while guaranteeing sufficient data read time from the memory circuit to the data bus is provided.

Abstract: A resistance ladder of a small size and a decoding method thereof, wherein in-series circuits of MOS transistors using a contact hole in common are connected in parallel between the adjacent two connection nodes of a resistance element, and an output line is wired to cross the resistance element, thereby reducing the layout pattern area of the resistance ladder.