Abstract: A method for manufacturing neuraminic acid derivatives is provided, also synthetic intermediates of the neuraminic acid derivatives and methods for their manufacture, and neuraminic acid derivatives having high purity. [Means for Solution] A synthetic intermediate compound represented by the formula (7) is provided: [wherein R3 represents alkyl; R4 and R5 each represents H, alkyl, phenyl, or together represent tetramethylene, pentamethylene, oxo].

Abstract: A CPCIe switchboard 22 is applied to a slot of a CPCIe backboard 25 of a 3 U size compliant with the CPCIe standard, and cooperative with a CPCIe CPU board 21 and I/O boards 23 applied to other slots, for mutual transmission and reception of PCIe bus signals, and a CPCI bridgeboard 11 is applied to a slot of a CPCI backboard 25 of a 6 U size compliant with the CPCI standard and cooperative with I/O boards 12 applied to other slots for mutual transmission and reception of PCI bus signals, and interconnected with the CPCIe switchboard 22 by a PCIe external cable 5 connected to a PCIe external connector 11n at a front panel 11m and cooperative with the CPCIe switchboard 22 for mutual transmission and reception of PCIe bus signals.

Abstract: A field-effect transistor includes a channel-forming region composed of an organic compound crystal including ?-electron conjugated molecules each containing chalcogen atoms as a constituent, wherein the distance between chalcogen atoms of adjacent ?-electron conjugated molecules is short, and the organic compound crystal has a periodic structure in which ?-electron conjugated molecules are two-dimensionally or three-dimensionally linked together.

Abstract: The present invention relates to a construction machine having a working oil tank and a switching valve to open/close the pilot line of the hydraulic pressure control system, the return oil from the switching valve being put back to the tank at the bottom through a return pipe, wherein a drain pipe is provided at a portion of the return pipe lower than the tank, while a plug for opening/closing the drain pipe at the outlet thereof, the oil in the working oil tank being discharged through the return pipe in a case where the outlet is opened by the plug. This allows the simplification of the configuration of drain passage as well as the improvement of the efficiency of draining works.

Abstract: A field-effect transistor includes a channel-forming region composed of an organic compound crystal including ?-electron conjugated molecules each containing chalcogen atoms as a constituent, wherein the distance between chalcogen atoms of adjacent ?-electron conjugated molecules is short, and the organic compound crystal has a periodic structure in which ?-electron conjugated molecules are two-dimensionally or three-dimensionally linked together.

Abstract: A semiconductor integrated circuit device including: a storage section which temporarily stores a command and text data input from the outside; a speech synthesis section which synthesizes a speech signal corresponding to the text data based on the command and the text data stored in the storage section, and outputs the synthesized speech signal to the outside; and a control section which controls a timing at which the command and the text data stored in the storage section are transferred to the speech synthesis section based on a speech synthesis start control signal. The control section controls an output of a speech output start notification signal which notifies in advance a start of outputting the synthesized speech signal to the outside based on occurrence of a speech synthesis start event, and then controls a start of outputting the synthesized speech signal to the outside at a given timing.

Abstract: A communication control system is provided that satisfies the needs of industrial applications in terms of real time properties, scalability and flexibility. For this purpose, the invention causes a communication station performing communications in accordance with a standard protocol to perform multiplex communications based on time division of a communication band. Communication is performed by dividing a communication cycle into time slots, and assigning a set of communication stations and a type of a communication section to each of the time slots.

Abstract: A communication control system is provided that performs communications satisfying a request for industrial applications and a request for open protocol communications at the same time. To this end, in the invention, a high-priority communication section performing critical communications to provide real time property and reliability, and a low-priority communication section performing communications based on an open standard protocol coexist in a same communication station.

Abstract: A phantom, adapted to be radiation-imaged to obtain a radiation image for evaluation in inspection of a radiation imaging system, is capable of performing both the quantitative evaluation and the visual evaluation of the radiation image easily with a low cost and increasing accuracy of the constancy evaluation of the radiation imaging system. The phantom includes a base plate; a first member disposed on the base plate and having a first image quality evaluating pattern formed thereon to be used for visual evaluation as to a predetermined image quality evaluation item; and a second member disposed on the base plate and having a second image quality evaluating pattern formed thereon to be used for quantitative evaluation as to the predetermined image quality evaluation item.

Abstract: A compact excavator includes an upper rotating body mounted rotatably on a lower traveling body, an engine arranged on a rear section of the upper rotating body in a state where a drive shaft thereof is oriented in a horizontal direction, an hydraulic pump connected to the drive shaft, and a sound attenuating plate disposed on a front side of the engine across a width of the excavator. A longitudinal discontinuity is provided in a neighborhood of the pump so as to bring the sound attenuating barrier in a backward displaced state, a blocking portion for a longitudinal discontinuity in the sound attenuating barrier is provided with through holes, pipes extending from the pump, and communicating with a hydraulic device arranged on an outer periphery side of the upper rotating body on the opposite side of the pump are laterally inserted through the through holes.

Abstract: A radiation image is partitioned into a plurality of subregions. A certain subregion, which is among the plurality of the subregions, is set as a blackening region, which is to be subjected to a blackening process, or as a non-blackening region, which is not to be subjected to the blackening process. Subregions, which are adjacent to each other among the plurality of the subregions, are set alternately as a blackening region and a non-blackening region by taking the certain subregion as a reference subregion. The blackening process is performed on the subregion, which has thus been set as the blackening region.

Abstract: A field-effect transistor includes a channel-forming region composed of an organic compound crystal including ?-electron conjugated molecules each containing chalcogen atoms as a constituent, wherein the distance between chalcogen atoms of adjacent ?-electron conjugated molecules is short, and the organic compound crystal has a periodic structure in which ?-electron conjugated molecules are two-dimensionally or three-dimensionally linked together.

Abstract: The present invention is a semiconductor device that includes a DRAM and an internal mask ROM that are implemented on a single integrated circuit substrate. The semiconductor further includes a terminal coupled to an external ROM and a selector for choosing an external ROM or an internal mask ROM for program code loading. If an external ROM is coupled to the aforementioned terminal, the external ROM is given precedence for use in the loading of the aforementioned program code. The control method of the present invention pertains to a semiconductor device including a DRAM, an internal mask ROM, a terminal coupled to an external ROM, a selector for choosing the first path led from the internal mask ROM or the second path led from the terminal, and a coupling determiner deciding whether or not the terminal is coupled to the external ROM.

Abstract: Hydrates of the compound of formula (I) and crystalline forms thereof have excellent storage stability and are useful medicaments.

Abstract: According to the present invention, there is provided a compact excavator comprised of an upper rotating body mounted rotatably on a lower traveling body, an engine arranged on a rear section of the upper rotating body in a state where a drive shaft thereof is oriented in a horizontal direction, an hydraulic pump connected to the drive shaft, and a soundproof plate disposed on a front side of the engine across a width of the excavator, a step is provided in a neighborhood of the pump so as to bring the soundproof plate in a state displaced backward viewed from the top, a dividing portion in a longitudinal direction on the step is provided with through holes, pipes extending from the pump, and communicating with a hydraulic device arranged on an outer periphery side of the upper rotating body on the opposite side of the pump are laterally inserted through the through holes, and it is possible to compactly route the delivery hoses to the location insulated from the engine while engine sound is insulated by the

Abstract: The present invention relates to a construction machine having a working oil tank and a switching valve to open/close the pilot line of the hydraulic pressure control system, the return oil from the switching valve being put back to the tank at the bottom through a return pipe, wherein a drain pipe is provided at a portion of the return pipe lower than the tank, while a plug for opening/closing the drain pipe at the outlet thereof, the oil in the working oil tank being discharged through the return pipe in a case where the outlet is opened by the plug. This allows the simplification of the configuration of drain passage as well as the improvement of the efficiency of draining works.

Abstract: A phantom, adapted to be radiation-imaged to obtain a radiation image for evaluation in inspection of a radiation imaging system, is capable of performing both the quantitative evaluation and the visual evaluation of the radiation image easily with a low cost and increasing accuracy of the constancy evaluation of the radiation imaging system. The phantom includes a base plate; a first member disposed on the base plate and having a first image quality evaluating pattern formed thereon to be used for visual evaluation as to a predetermined image quality evaluation item; and a second member disposed on the base plate and having a second image quality evaluating pattern formed thereon to be used for quantitative evaluation as to the predetermined image quality evaluation item.

Abstract: An optical device molding die designing method measures a wavefront aberration amount (&Dgr;) of an optical device molded by a temporary die, calculates a correction wavefront aberration amount (−&Dgr;) compensating for the wavefront aberration amount (&Dgr;), optically designs the optical device again by optimizing its form so as to generate the correction wavefront aberration amount (−&Dgr;), and designs a normal die accordingly.

Abstract: A disk drive, a servo controller, and a controller which have realized high-degree control by lightening processing load to a microprocessor unit (MPU) without increasing cost is disclosed. An analog/digital (AD) converter (ADC) performs the AD conversions of the regenerated levels A, B, C, and D of burst patterns supplied from a channel and retains the converted levels in an ADC register. A servo assist (SA) computes parameters, such as the position error of a head, independently of an MPU, based on the regenerated levels of the burst patterns retained in the ADC register and an instruction from the MPU retained in a SRAM. Based on the computed parameters, the SA computes servo data (DACOUT) for driving a voice coil motor and supplies the servo data to the DAC section of a VCM driver section through a SIO.

Abstract: A system and method within a hard disk drive for transferring track sector information of a storage disk to a memory device. The system of the present invention includes a disk having multiple tracks, wherein each of the tracks includes at least one sector. The system further includes a memory device for storing sector identification data and user data. A drive data bus is utilized for transferring data between the storage disk and the memory. A controller is utilized to manages read and write operations to and from the storage disk, wherein the controller includes means for selecting either said user data or said sector identification data to be transferred to said memory device.