Abstract: Disclosed herein is a data recording device including: a feature quantity detecting unit configured to detect a predetermined feature quantity of mixed data in which a music part and a talking part are mixed; a sound volume level detecting unit configured to detect sound volume level of the mixed data; a section identifying unit configured to identify a music part section corresponding to the music part and a talking part section corresponding to the talking part in the mixed data on a basis of the feature quantity and the sound volume level; and a recording unit configured to record the mixed data including the music part section and the talking part section identified by the section identifying unit.

Abstract: Strain gauges A, B for a bending portion cross each other and are stuck to a strain gauge sticking portion 7 for a bending portion located in a portion applying centrifugal force or centripetal force of a fluid thereto in a bending portion 4 in a bending circular tube 1 formed by bending a tube circulating the fluid therein. Further, strain gauges C, D for compensating static pressure and temperature cross each other and are stuck to a strain gauge sticking portion 11 for a straight tube portion located in a straight tube portion 8 connected to the bending portion 4 in the bending circular tube 1. Detecting signals of strain gauges A, B for a bending portion and strain gauges C, D for compensation are guided to an opposite position of a bridge circuit 12.

Abstract: Provided are a stress analysis method and stress analysis equipment that enable a detailed stress measurement, by using both a photoelasticity measurement method and a stress measurement (mechanoluminescence measurement) which utilizes a mechanoluminescent substance to measure a stress state of an object. Physical quantities that are measurable include individual principal stress component and a principal stress direction. The photoelasticity measurement method alone cannot measure individual principal stress component values.

Abstract: A wavelength division element includes a first filter and a second filter. The first filter has incident angle-to-transmission wavelength characteristics and separates multiplexed lights in a plurality of wavelength bands into first lights that are in a first wavelength band and first reflected lights. The first filter allows the first lights to pass through in a first direction and reflects the first reflected lights in a second direction. The second filter is located in the second direction and separates the first reflected lights into second lights that are in a second wavelength band and second reflected lights. The second filter allows the second lights to pass through in a third direction and reflects the second reflected lights in a fourth direction.

Abstract: A server performs electronic commerce with a client by using a network. An order receiving unit of the server separates a sales article into information and goods and presents them as an ordering target to the client. An article providing unit of the server selects the separated information, separated goods, or a combination thereof on the basis of an ordering request from the client and provides it to the client. The article providing unit executes a time difference service for providing the separated goods after the separated information was precedently provided. The article providing unit provides a separation service for solely providing the separated information and the separated goods, respectively.

Abstract: Light incident on an input optical fiber is separated into p-polarized light and s-polarized light by a birefringent crystal. A voltage to be applied to a liquid crystal element having electrodes associated with the ray axes of the polarized light waves is controlled in order to convert the p-polarized light into s-polarized so that both the polarized light waves will be s-polarized light. A polarized-wave separation film transmits p-polarized light and reflects s-polarized light. When both the polarized light waves propagated through the liquid crystal element are s-polarized light, the light reflected from the polarized-wave separation film is reflected from a total-reflection film, and reflected again from the polarized-wave separation film. The resultant light falls on the birefringent crystal again via the liquid crystal element, and is restored to non-polarized light by the birefringent crystal. The non-polarized light then falls on a first output optical fiber.

Abstract: A variable optical attenuator is constituted of input/output optical systems, a birefringent member provided at output sides of the input/output optical systems, a liquid-crystal member capable of individually varying polarizing states of input beams exiting the birefringent member, and a reflection member which reflects light passing through the liquid-crystal member, to thereby cause the light to return to an output lens of the input/output optical systems by way of the liquid-crystal member and the birefringent member. Thus, there can be provided a variable optical attenuator which is more compact and less expensive than a related-art variable optical attenuator.

Abstract: Light incident on an input optical fiber is separated into p-polarized light and s-polarized light by a birefringent crystal. A voltage to be applied to a liquid crystal element having electrodes associated with the ray axes of the polarized light waves is controlled in order to convert the p-polarized light into s-polarized so that both the polarized light waves will be s-polarized light. Otherwise, the s-polarized light is converted into p-polarized light so that both the polarized light waves will be p-polarized light. A polarized-wave separation film located behind the liquid crystal element transmits p-polarized light and reflects s-polarized light. When both the polarized light waves propagated through the liquid crystal element are s-polarized light, the light reflected from the polarized-wave separation film is reflected from a total-reflection film, and reflected again from the polarized-wave separation film.

Abstract: A wavelength division element includes a first filter and a second filter. The first filter has incident angle-to-transmission wavelength characteristics and separates multiplexed lights in a plurality of wavelength bands into first lights that are in a first wavelength band and first reflected lights. The first filter allows the first lights to pass through in a first direction and reflects the first reflected lights in a second direction. The second filter is located in the second direction and separates the first reflected lights into second lights that are in a second wavelength band and second reflected lights. The second filter allows the second lights to pass through in a third direction and reflects the second reflected lights in a fourth direction.

Abstract: A package for hermetically sealing a semiconductor laser which outputs light having a wavelength of 1.1 ?m or more is filled with a gas containing an oxidizing gas such as oxygen or ozone. The oxidizing gas in the package oxidizes hydrogen in the package to prevent hydrogen embrittlement of electrodes that applies stress on electrodes and to suppress variation in the emission wavelength which would otherwise result from the application of stress.

Abstract: The invention provides a structure of a pile head joint portion and a pile had fitting tubular body which can absorb an execution error for constructing a pile leading to a problem in the case of precasting a board for supporting an upper structure in order to intend to shorten a process, and can improve a strength of the pile head joint portion. A precast board (5) is manufactured by embedding a pile head fitting tubular body (2) which is constituted by a side plate (23) forming a pile head fitting tubular body (2) and a closing plate (22) closing open one end of a tube body, and forms an opening portion (26) in another end open so as to freely fit a pile head. The pile and the board are integrally formed by fitting the pile head portion to the pile head fitting tubular body (2) after constructing the pile, and charging an injection material (4) into the pile head fitting tubular body (2).

Abstract: A method of producing reduced iron pellets including reducing raw material pellets to obtain reduced iron pellets, and rolling the reduced iron pellets at a temperature ranging between 800 and 1200° C. sufficiently such that the reduced iron pellets undergo sintering.

Abstract: An artificial heart pump includes a casing (4, 15) having a blood inflow port (5) in its upper part, a blood outflow port (6) in its side surface part and a plurality of electromagnets (22) on its inner peripheral surface; a fixed shaft (17) projecting from the bottom surface of the casing and having thrust receptacles (18, 16) at its upper and lower end parts (12, 10), respectively; an impeller section (2) having a blood inflow section (3) in its center part and a blood outflow section (9) in its side surface part; an impeller support member (7) supporting the impeller section from below and having on its outer peripheral surface a plurality of permanent magnets (2) and in its center a hole part fitted on the fixed shaft to rotatably support the impeller section within the casing; a radial hydrodynamic bearing part formed between the inner peripheral surface of the hole part of the impeller support member and the outer peripheral surface of the fixed shaft; and thrust hydrodynamic bearings formed between the

Abstract: There provided a small low-cost optical monitor device. In this optical monitor device, input fibers and output fibers are arranged in an array on one side, first lenses are arranged in an array on the optic axes of input optical signals outputted from the input fibers, and second lenses are arranged in an array on the optic axes of output optical signals inputted to the output fibers. Input optical signals is inputted to a coupler film via the first lenses and optical signals which pass through the coupler film will be detected by front incidence type PD elements. On the other hand, output optical signals reflected from the coupler film are inputted to the second lenses separate from the first lenses, from which the input optical signals were outputted, and are coupled to the corresponding output fibers. As a result, a reflection and loop back structure is realized. In this reflection and loop back structure, a plurality of input optical signals are reflected accurately by a coupler film and are outputted.

Abstract: A variable optical attenuator is constituted of input/output optical systems, a birefringent member provided at output sides of the input/output optical systems, a liquid-crystal member capable of individually varying polarizing states of input beams exiting the birefringent member, and a reflection member which reflects light passing through the liquid-crystal member, to thereby cause the light to return to an output lens of the input/output optical systems by way of the liquid-crystal member and the birefringent member. Thus, there can be provided a variable optical attenuator which is more compact and less expensive than a related-art variable optical attenuator.

Abstract: The invention provides a structure of a pile head joint portion and a pile had fitting tubular body which can absorb an execution error for constructing a pile leading to a problem in the case of precasting a board for supporting an upper structure in order to intend to shorten a process, and can improve a strength of the pile head joint portion. A precast board (5) is manufactured by embedding a pile head fitting tubular body (2) which is constituted by a side plate (23) forming a pile head fitting tubular body (2) and a closing plate (22) closing open one end of a tube body, and forms an opening portion (26) in another end open so as to freely fit a pile head. The pile and the board are integrally formed by fitting the pile head portion to the pile head fitting tubular body (2) after constructing the pile, and charging an injection material (4) into the pile head fitting tubular body (2).

Abstract: A package for hermetically sealing a semiconductor laser which outputs light having a wavelength of 1.1 &mgr;m or more is filled with a gas containing an oxidizing gas such as oxygen or ozone. The oxidizing gas in the package oxidizes hydrogen in the package to prevent hydrogen embrittlement of electrodes that applies stress on electrodes and to suppress variation in the emission wavelength which would otherwise result from the application of stress.

Abstract: A server performs electronic commerce with a client by using a network. An order receiving unit of the server separates a sales article into information and goods and presents them as an ordering target to the client. An article providing unit of the server selects the separated information, separated goods, or a combination thereof on the basis of an ordering request from the client and provides it to the client. The article providing unit executes a time difference service for providing the separated goods after the separated information was precedently provided. The article providing unit provides a separation service for solely providing the separated information and the separated goods, respectively.

Abstract: A wavelength division multiplexing optical transmission apparatus for stabilizing wavelengths by feeding back the output of detection of wavelength fluctuations to the light source is provided with an optical filtering means for branching part of wavelength division multiplexed transmission lights from a plurality of optical transmission means each comprising a semiconductor laser for oscillating signal lights having different wavelengths and modulated with different frequencies and a temperature controller for controlling the temperature of the semiconductor laser, having a plurality of pass bands and transmitting the branched component of the wavelength division multiplexed transmission lights; a means for collectively receiving and photoelectrically converting the lights transmitted by the optical filtering means; and band pass filtering means having as their respective pass bands the photoelectrically converted electrical signals, and each supplying the output of the pass band to the temperature controlle

Abstract: Several methods and production facilities are provided in order to solve several problems encountered in conventional methods and facilities for producing reduced iron by reducing raw material pellets of a mixture of an iron oxide powder and a reducing material powder in a rotary bed-type reducing furnace and by melting the reduced iron in a sealed-type electro-blast furnace.