Abstract: A rotary electric machine includes a rotor, a stator having coils wound to surround the rotor, a cylindrical ring member fixedly mounted on the stator by shrinkage fitting, and a frame disposed on the outside of the ring member with a gap created in between. The distance of the gap varies as a result of thermal expansion of the stator and the ring member. An outer surface of the ring member goes into contact with the frame when the stator and the ring member thermally expand, whereby the stator and the ring member are efficiently cooled.

Abstract: An illumination device includes a cover; a lamp including a light emitting unit; and a doppler sensor including a receiving unit, disposed on the same side as the lamp with respect to a first plane including a surface of the cover facing the lamp. In a cross section that intersects the receiving unit and is orthogonal to a central axis of the light emitting unit, “?” between a boundary line of a detectable range of the receiving unit close to the lamp and a normal to the first plane, “d” between the central axis and the first plane, “r” of the light emitting unit; “y” between the first plane and the receiving unit; and “x” between the receiving unit and a second plane that includes the central axis of the light emitting unit and is orthogonal to the first plane satisfy the following equation.

Abstract: An object detection device comprises an active sensor, an amplifying circuit configured to divide and amplify a sensor signal outputted from said active sensor with respect to each a plurality of frequency bands through each amplifier, and a determining unit determining the presence or absence of a detection target object by comparing an output of said amplifying circuit with a predetermined threshold value. A noise determining unit controls a switching circuit so as to turn off a switch inserted between said determining unit and an amplifier having a band pass including a noise of a particular frequency, when determining that the noise of the particular frequency is produced constantly by using an analysis result outputted from a frequency analyzer detecting intensity of each frequency of the sensor signal.

Abstract: Provided is a resin composition for stereolithography that absorbs little water and moisture over time in uncured state, maintains a low moisture absorption rate even under high humidity, and has high curing sensitivity, from which a stereolithography product excellent in the properties, such as dimensional accuracy, mechanical properties, and dimensional stability can be smoothly produced for reduced light irradiation time. The resin composition for stereolithography comprising an oxetane compound expressed by the general formula (I) below: wherein R1 denotes an alkyl group having 1 to 5 carbon atoms, and R2 denotes an alkylene group having 2 to 10 carbon atoms that may contain an ether bond, in the proportion of from 3 to 60 mass % based on the total mass of the resin composition for stereolithography.

Abstract: An optical member for refracting light emitted from a light source and projecting the light from a light projecting surface thereof includes a plurality of concave or convex portions formed on the light projecting surface. The concave or convex portions are concentrically arranged on a plurality of circles having a common center point. The concave or convex portions on the circles adjoining to each other are arranged in different phase positions with respect to radial lines extending from the center point.

Abstract: Disclosed is a 3-ethyloxethane compound having a hydroxyl group which is represented by the following general formula (1). (1) (In the formula, A represents an alkylene group having 3-5 carbon atoms which may have an ether bond or an alkylene group having 3-5 carbon atoms which may be substituted by a hydroxyl group.) The 3-ethyloxethane compound having a hydroxyl group can be produced by reacting a 3-ethyloxethane compound represented by the general formula (2) below, a diol compound represented by the general formula (3) below and a base. (2) (In the formula, X represents a leaving group.) (3) (In the formula, A is as defined above.

Abstract: A doppler sensor includes a doppler signal generation unit and a determining unit. The doppler signal generation unit serves to transmit an electric wave to a detection range and receiving electric waves from a detection range, and generating a doppler signal based on a transmission signal used in transmitting the electric wave and a reception signal obtained from the received electric waves, and the determining unit serves to determine whether or not there exists a human body in the detection range through a spectrum analysis using a peak frequency, which is a frequency having the highest intensity in a difference spectrum obtained by subtracting a background spectrum from the spectrum of the doppler signal.

Abstract: An illumination device includes a cover; a lamp including a light emitting unit; and a doppler sensor including a receiving unit, disposed on the same side as the lamp with respect to a first plane including a surface of the cover facing the lamp. In a cross section that intersects the receiving unit and is orthogonal to a central axis of the light emitting unit, “?” between a boundary line of a detectable range of the receiving unit close to the lamp and a normal to the first plane, “d” between the central axis and the first plane, “r” of the light emitting unit; “y” between the first plane and the receiving unit; and “x” between the receiving unit and a second plane that includes the central axis of the light emitting unit and is orthogonal to the first plane satisfy the following equation.

Abstract: An illumination apparatus includes a light source unit having solid light-emitting elements and a sensor unit having a wave transmission portion for transmitting energy waves of specified frequency and a wave reception portion for receiving the energy waves reflected from an object. The sensor unit outputs a detection signal by detecting the object within a detection range based on the difference in frequency between the transmitted and received energy waves. The illumination apparatus further includes a control unit responsive to the detection signal from the sensor unit for performing a control operation to turn on the light source unit, and a power source unit for supplying electric power to the light source unit. The power source unit is arranged outside the detection range of the sensor unit. The sensor unit is provided on the opposite side to the direction of light irradiated from the light source unit.

Abstract: An illumination system includes a plurality of illumination devices and a number of sensor blocks. In each of the sensor blocks, an active sensor is provided to detect a moving object traveling within a detection area thereof and plural amplifier circuits is provided to divide a detection signal transmitted from the active sensor into plural frequency bands and for amplifying signal components of the frequency bands. Provided in a one-to-one relationship with the amplifier circuits is plural judgment units that, based on the amplified signal components of the frequency bands provided from the amplifier circuits, judges whether the moving object is travelling at a travel velocity corresponding to any one of the frequency bands. A control unit is also provided to perform a turn-on control on at least one of the illumination devices based on judgment results made by the judgment units.

Abstract: Disclosed is an organosulfur compound denoted by a general formula (a1): in which A denotes —S—, —S(O)— or —S(O)2—; Z1 and Z4 denote a trivalent aromatic hydrocarbon group or the like; Z2 and Z3 denote a bivalent aromatic hydrocarbon group or the like; Ar1, Ar2, Ar3 and Ar4 denote an aromatic hydrocarbon group or the like; and n is 0 or 1, or a general formula (b1): in which A denotes the same meaning as aforesaid; Z5 denotes a trivalent aromatic hydrocarbon group or the like; Ar denotes a m-valent aromatic hydrocarbon group or the like; Ar1 and Ar2 denote the aforesaid meaning; and m is 2 or 3. This compound is useful as an electron transport material, a hole blocking material or a host material of an organic electroluminescence element.

Abstract: A communication terminal has a communicating section which performs communication via a network, an instructing section which gives instructions to perform communication, a reserving section which reserves performance of first communication by setting a starting time and an ending time of the first communication received through the communicating section, a notifying section which notifies a user that a reservation exists when the communicating section tries to perform second communication other than the first communication during a time period between a time preceding the starting time by a predetermined time period and the ending time, and a controlling section which controls to perform the second communication when an instruction to perform the second communication is given by the instructing section after the notification by the notifying section.

Abstract: An illumination apparatus includes a lamp load; a lighting circuit unit for turning on the lamp load; a sensor unit; an amplifier circuit unit for; a control unit for controlling the lighting circuit unit to turn on or off the lamp load depending on presence or absence of a human body; and a power supply unit. The control unit determines that a human body is present when a voltage of the. amplified detection signal exceeds a first threshold voltage while the lighting circuit unit is not operated and the lamp load is turned off, and determines that a human body is present if a voltage of the amplified detection signal exceeds a second threshold voltage while the lighting circuit unit is operated and the lamp load is turned on, a magnitude of the second threshold voltage being set to be higher than a magnitude of the first threshold voltage.

Abstract: Disclosed is a 3-ethyloxethane compound having a hydroxyl group which is represented by the following general formula (1). (1) (In the formula, A represents an alkylene group having 3-5 carbon atoms which may have an ether bond or an alkylene group having 3-5 carbon atoms which may be substituted by a hydroxyl group.) The 3-ethyloxethane compound having a hydroxyl group can be produced by reacting a 3-ethyloxethane compound represented by the general formula (2) below, a diol compound represented by the general formula (3) below and a base. (2) (In the formula, X represents a leaving group.) (3) (In the formula, A is as defined above.

Abstract: An illumination apparatus includes a light source unit having solid light-emitting elements and a sensor unit having a wave transmission portion for transmitting energy waves of specified frequency and a wave reception portion for receiving the energy waves reflected from an object. The sensor unit outputs a detection signal by detecting the object within a detection range based on the difference in frequency between the transmitted and received energy waves. The illumination apparatus further includes a control unit responsive to the detection signal from the sensor unit for performing a control operation to turn on the light source unit, and a power source unit for supplying electric power to the light source unit. The power source unit is arranged outside the detection range of the sensor unit. The sensor unit is provided on the opposite side to the direction of light irradiated from the light source unit.

Abstract: An illumination system includes a plurality of illumination devices and a number of sensor blocks. In each of the sensor blocks, an active sensor is provided to detect a moving object traveling within a detection area thereof and plural amplifier circuits is provided to divide a detection signal transmitted from the active sensor into plural frequency bands and for amplifying signal components of the frequency bands. Provided in a one-to-one relationship with the amplifier circuits is plural judgment units that, based on the amplified signal components of the frequency bands provided from the amplifier circuits, judges whether the moving object is travelling at a travel velocity corresponding to any one of the frequency bands. A control unit is also provided to perform a turn-on control on at least one of the illumination devices based on judgment results made by the judgment units.

Abstract: Provided are a process for preparing a 4-amino-2-alkylthio-5-pyrimidinecarbaldehyde, which is industrially advantageous in that a 4-amino-2-alkylthio-5-pyrimidinecarbaldehyde can be prepared in high yield in a simple way, an intermediate used in the process, and a process for preparing the intermediate, which is industrially advantageous in that the intermediate can be prepared safely in high yield with ease. The present invention is directed to: a process for preparing an alkali metal salt of 3,3-dialkoxy-2-hydroxymethylenepropanenitrile, comprising reacting at least one nitrile compound selected from the group consisting of a 3,3-dialkoxypropanenitrile and a 3-alkoxy-2-propenenitrile, with a formic acid ester at ?10 to 30° C.

Abstract: Provided is a resin composition for stereolithography that absorbs little water and moisture over time in uncured state, maintains a low moisture absorption rate even under high humidity, and has high curing sensitivity, from which a stereolithography product excellent in the properties, such as dimensional accuracy, mechanical properties, and dimensional stability can be smoothly produced for reduced light irradiation time. The resin composition for stereolithography comprising an oxetane compound expressed by the general formula (I) below; (wherein R1 denotes an alkyl group having 1 to 5 carbon atoms, and R2 denotes an alkylene group having 2 to 10 carbon atoms that may contain an ether bond) in the proportion of from 3 to 60 mass % based on the total mass of the resin composition for stereolithography.

Abstract: The present invention is to provide a process for preparing a 3-unsubstituted-5-amino-4-nitrosopyrazole compound represented by the formula (1): wherein R1 represents a hydrogen atom, an alkyl group, an aryl group or a heterocyclic group each of which may have a substituent(s), which comprises cyclizing a 3-hydrazono-2-hydroxyiminopropionitrile compound represented by the formula (2): wherein R1 has the same meaning as defined above, synthetic intermediates thereof and a process for preparing these intermediates.

Abstract: The present invention is to provide a 3,3-dialkoxy-2-hydroxyiminopropionitrile represented by the formula (1): wherein R1 and R2 may be the same or different from each other, and each represent an alkyl group having 1 to 8 carbon atoms, a process for preparing the same, and a process for preparing a 5-amino-4-nitrosopyrazole compound represented by the formula (4): wherein R4 represents a hydrogen atom, an alkyl group which may have a substituent(s) or an aryl group which may have a substituent(s), or an acid salt thereof using the same.