摘要:
A memberane sensitive to anions is obtained by forming into a membrane either a composition comprising an onium salt compound such as trioctylmethylammonium chloride or tetraoctylammonium bromide, and an aromatic boric diester compound such as (p-alkyloxy)phenyl borate, or a composition which comprises these two ingredients and a membrane-forming polymer such as polyvinyl chloride or polystyrene, and may further contain a fat-soluble anion salt such as tetraphenyl borate. This membrane can yield an ion-selective electrode which permits hydrogencarbonate ions contained in body fluids to be rapidly determined with high sensitivity and high selectivity and which has a long life.
摘要:
A power generation system includes an alkaline fuel cell provided with an electrolyte membrane which is an anion exchange membrane and a pair of electrodes (an anode and a cathode) arranged on the both sides of the electrolyte membrane. The alkaline fuel cell can generate an electric power by supplying a fuel gas and an oxidizing agent gas to the anode side and the cathode side, respectively. The power generation system uses a hydrogen gas containing a basic compound such as ammonia as the fuel gas to be supplied to the anode side.
摘要:
This invention provides a p-type group III nitride semiconductor, with good p-type properties, having a composition expressed by AlXGaYInZN in which each of X, Y and Z indicates a rational number satisfying a relationship of X+Y+Z=1.0, even if Al content is as high as 1.0>X≧0.5. It is achieved that a proportion of a hole concentration at 30° C. to an acceptor impurity atom concentration is 0.001 or more in the p-type group III nitride semiconductor of the invention, by doping acceptor impurity atoms such as Mg in concentration of 5×1018 to 1×1020 cm−3 using the method, for example, MOCVD with attention not to incorporate an impurity atom other than the acceptor impurity atom or not to form dislocation in the crystal when producing the group III nitride semiconductor expressed by the above composition.
摘要翻译:本发明提供一种p型III族氮化物半导体,具有良好的p型性质,具有由Al x Ga Y InZ N表示的组成,其中X,Y和Z各自表示满足X + Y + Z = 1.0的关系的有理数, 即使Al含量高达1.0>X≥0.5。 实现在本发明的p型III族氮化物半导体中,在30℃至受主杂质原子浓度的空穴浓度的比例为0.001以上,通过掺杂受体杂质原子如Mg的浓度为5 ×1018〜1×1020cm-3的方法,例如MOCVD,注意不要掺杂除受体杂质原子以外的杂质原子,或者在制造由上述表示的III族氮化物半导体时,在晶体中形成位错 组成。
摘要:
An anion-exchange membrane having quaternary ammonium groups or quaternary phosphonium groups wherein halogen ions serve as the counter ions is obtained. Rather than being subjected to ion exchange with an OH-type membrane using a toxic substance such as sodium hydroxide, the halogen-type anion exchange membrane is brought into contact with a carbonate solution and/or bicarbonate solution to directly obtain an anion exchange membrane where at least some of the counterions of the quaternary ammonium groups or quaternary phosphonium groups are CO32− and/or HCO3−.
摘要:
Disclosed is a solid polymer electrolyte fuel cell membrane comprising an anion exchange membrane that contains a hydrocarbon-based anion exchange resin, wherein the water permeability at 25° C. is 1400 g m−2 hr−1 or greater, the anion exchange capacity is 0.2 to 5.0 mmol·g−1, the percentage of water content at 25° C. is 7% by weight or greater, and the thickness is 3 to 50 μm. It is especially preferable as a solid polymer electrolyte fuel cell membrane when said anion exchange membrane is an ion exchange membrane with a 5 to 15μm-thick porous membrane substrate, wherein the voids in said porous membrane are filled with a hydrocarbon-based anion exchange resin.
摘要:
The present invention can provide an anion exchange type separation membrane used for direct liquid fuel type fuel cell, high in heat resistance, hard to deteriorate when using and capable of obtaining high battery output. A composite membrane used as the separation membrane for fuel cell can be obtained by using a porous film, composed of a hydrolysis resistant polyimide resin such as a polyimide resin having a fluorenylidene group in a main framework, as a substrate; optionally increasing water retention characteristics for example by applying a water-retentive resin to at least a part of a surface of the porous film; and then filling an anion-exchange resin such as a cross-linked hydrocarbon-based anion-exchange resin having a quaternary ammonium group as an anion exchange group into a void portion of the porous film.
摘要:
A method of producing a group III nitride such as aluminum nitride, comprising the step of reacting a group III halide gas such as aluminum trichloride gas with a nitrogen source gas such as ammonia gas in a growth chamber to grow a group III nitride on a substrate held in the growth chamber, wherein the method further comprises premixing together the group III halide gas and the nitrogen source gas to obtain a mixed gas and then introducing the mixed gas into the growth chamber without forming a deposit in the mixed gas substantially to be reacted each other.For the growth of a group III nitride such as an aluminum-based group III nitride by HVPE, there are provided a method of producing the group III nitride having as high quality as that obtained by the method of the prior art at a high yield and an apparatus used in the method.
摘要:
A single crystal pulling apparatus for a metal fluoride comprising a crucible provided in a chamber for filling with a molten solution of a single crystal material, a melting heater provided to surround the crucible, a vertically movable single crystal pulling bar for attaching a seed crystal on a tip thereof for coming in contact with the molten solution of the single crystal material in the crucible, a heat insulating wall provided in the chamber to surround at least a peripheral side portion of a single crystal pulling region in an upper part of the crucible, a ceiling board for closing an opening portion of an upper end in an upper part of the heat insulating wall, and a single crystal pulling chamber surrounded by the heat insulating wall and the ceiling board, wherein the ceiling board is provided with at least an inserting hole for inserting the single crystal pulling bar, and wherein a coefficient of thermal conductivity in a direction of a thickness of the ceiling board is 1000 to 50000 W/m2·K.
摘要翻译:一种用于金属氟化物的单晶拉制装置,包括设置在用于填充单晶材料的熔融溶液的室中的坩埚,围绕坩埚的熔融加热器,用于将晶种附着的可垂直移动的单晶拉杆 其与坩埚中的单晶材料的熔融溶液接触的前端,设置在该室内的隔热壁,至少包围坩埚上部的单晶拉伸区域的周边部分, 用于封闭绝热壁的上部的上端的开口部分的天花板和由绝热壁和天花板板围绕的单晶拉制室,其中,所述顶板设置有至少插入 用于插入单晶拉杆的孔,其中在顶板的厚度方向上的导热系数为100 0至50000W / m 2 .K。
摘要:
An optical writing device writes an image on a photoconductor with light emitted from a light-emitting element array including a plurality of light-emitting elements lined in one direction. The optical writing device includes: a thinning unit that thins pixels in input binary image data depending on a pattern of the image data; a thinning rate setting unit that sets a thinning rate by the thinning unit for each predetermined range of the image data; and a light-emitting time changing unit that changes a light-emitting time of the light-emitting element array for each predetermined range of the binary image data thinned by the thinning unit depending on the thinning rate set by the thinning rate setting unit and a set toner saving rate.
摘要:
A power generation system includes an alkaline fuel cell provided with an electrolyte membrane which is an anion exchange membrane and a pair of electrodes (an anode and a cathode) arranged on the both sides of the electrolyte membrane. The alkaline fuel cell can generate an electric power by supplying a fuel gas and an oxidizing agent gas to the anode side and the cathode side, respectively. The power generation system uses a hydrogen gas containing a basic compound such as ammonia as the fuel gas to be supplied to the anode side.