Abstract: Provided is a heterocyclic compound that can have an antagonistic action on an NMD A receptor containing the NR2B subunit and that is expected to be useful as a prophylactic or therapeutic agent for depression, bipolar disorder, migraine, pain, peripheral symptoms of dementia and the like. A compound represented by the formula (I), wherein each symbol is as defined in the DESCRIPTION, or a salt thereof.

Abstract: A rotary electric machine includes a rotor core, and a permanent magnet embedded in proximity to an outer circumferential portion of the rotor core, in which gaps for reducing irreversible demagnetization of the permanent magnet are provided on portions on an inner circumference side of the permanent magnet, the portions being of the rotor core in proximity to an inner circumferential surface of the permanent magnet.

Abstract: The invention concern an apparatus and a method for manufacturing polycrystalline silicon having a reduced amount of boron compounds. The invention feeds Ar gas in a trichlorosilane line, which connects a trichlorosilane (TCS) tank and a series of distillation units. The distillation units have a pressure transducer and a pressure independent control valve (PIC-V) positioned on a vent gas line for discharging vent gas from the distillation units. Ar gas is fed to the TCS line with higher pressure than the pressure set for opening the PIC-V. The TCS is distilled by the distillation units with continuously discharging vent gas from the distillation units.

Abstract: The invention relates to a method and an apparatus for producing purified hydrogen gas by a pressure swing adsorption process. Further the invention relates to detecting an operating life of adsorbents in a adsorption tower. The method and the apparatus have a gas supply unit for adding an inert gas to an unpurified hydrogen gas and a detector for measuring an inert gas in a purified hydrogen gas discharged from the adsorption tower.

Abstract: The invention concern an apparatus and a method for manufacturing polycrystalline silicon having a reduced amount of boron compounds. The invention feeds Ar gas in a trichlorosilane line, which connects a trichlorosilane (TCS) tank and a series of distillation units. The distillation units have a pressure transducer and a pressure independent control valve (PIC-V) positioned on a vent gas line for discharging vent gas from the distillation units. Ar gas is fed to the TCS line with higher pressure than the pressure set for opening the PIC-V. The TCS is distilled by the distillation units with continuously discharging vent gas from the distillation units.

Abstract: The invention relates to a method and an apparatus for producing purified hydrogen gas by a pressure swing adsorption process. Further the invention relates to detecting an operating life of adsorbents in a adsorption tower. The method and the apparatus have a gas supply unit for adding an inert gas to an unpurified hydrogen gas and a detector for measuring an inert gas in a purified hydrogen gas discharged from the adsorption tower.

Abstract: The invention relates to a method and an apparatus for producing purified hydrogen gas by a pressure swing adsorption process. Further the invention relates to detecting an operating life of adsorbents in a adsorption tower. The method and the apparatus have a gas supply unit for adding an inert gas to an unpurified hydrogen gas and a detector for measuring an inert gas in a purified hydrogen gas discharged from the adsorption tower.

Abstract: The invention concern an apparatus and a method for manufacturing polycrystalline silicon having a reduced amount of boron compounds. The invention feeds Ar gas in a trichlorosilane line, which connects a trichlorosilane (TCS) tank and a series of distillation units. The distillation units have a pressure transducer and a pressure independent control valve (PIC-V) positioned on a vent gas line for discharging vent gas from the distillation units. Ar gas is fed to the TCS line with higher pressure than the pressure set for opening the PIC-V. The TCS is distilled by the distillation units with continuously discharging vent gas from the distillation units.

Abstract: The invention concern an apparatus and a method for manufacturing polycrystalline silicon having a reduced amount of boron compounds. The invention feeds Ar gas in a trichlorosilane line, which connects a trichlorosilane (TCS) tank and a series of distillation units. The distillation units have a pressure transducer and a pressure independent control valve (PIC-V) positioned on a vent gas line for discharging vent gas from the distillation units. Ar gas is fed to the TCS line with higher pressure than the pressure set for opening the PIC-V. The TCS is distilled by the distillation units with continuously discharging vent gas from the distillation units.

Abstract: The invention relates to a method and an apparatus for producing purified hydrogen gas by a pressure swing adsorption process. Further the invention relates to detecting an operating life of adsorbents in a adsorption tower. The method and the apparatus have a gas supply unit for adding an inert gas to an unpurified hydrogen gas and a detector for measuring an inert gas in a purified hydrogen gas discharged from the adsorption tower.

Abstract: A rotary electric machine includes a rotor core, and a permanent magnet embedded in proximity to an outer circumferential portion of the rotor core, in which gaps for reducing irreversible demagnetization of the permanent magnet are provided on portions on an inner circumference side of the permanent magnet, the portions being of the rotor core in proximity to an inner circumferential surface of the permanent magnet.

Abstract: The present invention relates to a method for producing trichlorosilane having a reduced amount of boron compounds. The method including: (A) reacting metallurgical grade silicon with hydrogen chloride in a fluidized-bed reactor to produce a reaction gas including trichlorosilane; (B) first distilling the reaction gas, for separating first vapor fractions and first residue fractions, by setting a distillation temperature at a top of a distillation column between about a boiling point of trichlorosilane and about a boiling point of tetrachlorosilane and feeding the first vapor fractions to a second distillation column; (C) second distilling, for separating the trichlorosilane and second vapor fractions including boron compounds, by setting a distillation temperature at a top of the distillation column between about a boiling point of dichlorosilane and about a boiling point of trichlorosilane; and (D) feeding back the second vapor fractions to the fluidized-bed reactor.

Abstract: In order to estimate a magnetic pole position of a permanent magnet type brushless motor, the following steps are conducted. A given &ggr; axis and a given &dgr; axis in an advanced from the &ggr; axis by an electrical angle of 90° are set. A closed-loop electric current control system in the &ggr; axis direction is formed while forming an open-loop electric current control system in the &dgr; axis direction. It is calculated an interference current generating in the &dgr; axis direction when a current command in the &ggr; axis direction is given as a stepwise alternating current command. The &ggr; axis is finely advanced by an angle of &Dgr;&thgr; when a sign of a product of an integral value of the interference current and a value of the current command in the &ggr; axis direction is positive. Alternatively, the &ggr; axis is finely delayed by an angle of &Dgr;&thgr; when the sign is negative.