摘要:
An optical fiber communication system using group transmission which transmits PCM information by utilizing an optical fiber group composed of a plurality of optical fibers. The PCM information in a plurality of optical fibers is stored in a memory of the system's sending terminal, the stored information of each memory is read out by simultaneous clock pulses so as to send out the information to a transmission line which is composed of a plurality of said optical fibers. A repeater is provided in the transmission line having at least one of the following circuits, an AGC circuit, a light element control circuit, a power supply circuit and a supervisory circuit. The supervisory circuit is commonly provided for checking a plurality of signals which is transmitted by the above-mentioned optical fibers. In the repeater, the signals are regenerated by simultaneous clock pulses which are generated from one common timing circuit, and the phases of the signals are arranged in order for sending out said signals to the transmission line composed of said optical fibers.
摘要:
To provide a kneading screw which can reduce such a phenomenon that a disproportional load is imposed onto a shaft of the kneading screw without degrading kneading performance of the kneading screw, a twin screw extruder with the kneading screw, and a method for assembling the kneading screw. In the kneading screw, each of the kneading rotor segments has at least one of a spiral kneading blade or a kneading blade extending in parallel with the axial direction, and is incorporated in the kneading screw such that top blade portions of the kneading blades at the adjacent ends of the kneading rotor segments adjacent to each other in the axial direction of the kneading screw are shifted in phase to each other, and such that the top blade portions of the kneading blades at the respective central positions in the axial direction of the adjacent kneading rotor segments are shifted larger in phase than the case where the top blade portions of the adjacent ends of the adjacent kneading rotor segments are equal in phase to each other.
摘要:
To provide a kneading screw which can reduce such a phenomenon that a disproportional load is imposed onto a shaft of the kneading screw without degrading kneading performance of the kneading screw, a twin screw extruder with the kneading screw, and a method for assembling the kneading screw. In the kneading screw, each of the kneading rotor segments has at least one of a spiral kneading blade or a kneading blade extending in parallel with the axial direction, and is incorporated in the kneading screw such that top blade portions of the kneading blades at the adjacent ends of the kneading rotor segments adjacent to each other in the axial direction of the kneading screw are shifted in phase to each other, and such that the top blade portions of the kneading blades at the respective central positions in the axial direction of the adjacent kneading rotor segments are shifted larger in phase than the case where the top blade portions of the adjacent ends of the adjacent kneading rotor segments are equal in phase to each other.
摘要:
A defect inspecting apparatus is disclosed that can detect finer defects with high resolution optical images of those defects, and which makes the difference in contrast greater between fine line patterns of a semiconductor device. The defect inspecting apparatus includes a sample mounting device for mounting a sample; lighting and detecting apparatus for illuminating a patterned sample mounted on a mount and detecting the optical image of the reflected light obtained therefrom. Also included is a display for displaying the optical image detected by this lighting and detecting apparatus; an optical parameter setting device for setting and displaying optical parameters for the lighting and detecting apparatus on the display; and optical parameter adjusting apparatus for adjusting optical parameters set for the lighting and detecting apparatus according to the optical parameters set by the optical parameter setting apparatus; a storage device for storing comparative image data; and a defect detecting device for detecting defects from patterns formed on the sample by comparing the optical image detected by the optical image detecting apparatus with the comparative image data stored in the storage.
摘要:
A reviewing apparatus, for enabling to conduct detailed review (ADR) and/or defect classification (ADC), effectively, through making alignment of defects detected in an upstream inspecting apparatus into the reviewing apparatus, with certainty and at high accuracy, and further within a short time-period, comprises a defect selecting portion 240 for selecting or picking up a plural number of alignment candidates from a large numbers defects, upon defect inspection information, which is detected within the inspecting apparatus, an electron microscope 21 (30) for obtaining a SEM image of the plural number of alignment candidates, through picking up an image on each of the plural number of alignment candidates, which are selected or picked up, narrowly, and a determining portion 243 for calculating out characteristic quantities relating to the plural number of alignment candidates, upon basis of the obtained SEM images thereof, and for determining on suitableness/unsuitableness for use in alignment relating to the plural number of alignment candidates, upon basis of the characteristic quantities calculated therewith.
摘要:
A defect inspecting apparatus is disclosed that can detect finer defects with high resolution optical images of those defects, and which makes the difference in contrast greater between fine line patterns of a semiconductor device. The defect inspecting apparatus includes a sample mounting device for mounting a sample; lighting and detecting apparatus for illuminating a patterned sample mounted on a mount and detecting the optical image of the reflected light obtained therefrom. Also included is a display for displaying the optical image detected by this lighting and detecting apparatus; an optical parameter setting device for setting and displaying optical parameters for the lighting and detecting apparatus on the display; and optical parameter adjusting apparatus for adjusting optical parameters set for the lighting and detecting apparatus according to the optical parameters set by the optical parameter setting apparatus; a storage device for storing comparative image data; and a defect detecting device for detecting defects from patterns formed on the sample by comparing the optical image detected by the optical image detecting apparatus with the comparative image data stored in the storage.
摘要:
Novel hG-CSF polypeptide derivatives having an amino acid sequence derived from the amino acid sequence of the human granulocyte colony stimulating factor polypeptide by substitution of at least one amino acid by a different amino acid and/or deletion of at least one amino acid, recombinant plasmids containing a DNA fragment insert coding for any of these hG-CSF polypeptide derivatives, microorganisms carrying one of such plasmids, methods of producing the hG-CSF polypeptide derivatives using the microorganisms, a monoclonal antibody binding to the hG-CSF polypeptide derivative, and chemically modified hG-CSF or derivatives thereof are disclosed.
摘要:
The present invention provides a recombinant DNA comprised of a vector DNA and a DNA fragment containing a gene coding for .gamma.-glutamyl transpeptidase derived from Bacillus subtilis. The invention also provides a process for producing .gamma.-glutamyl transpeptidase, which comprises culturing in a culture medium a microorganism belonging to the genus Bacillus which is carrying recombinant DNA comprised of a vector DNA and DNA fragment which contains a gene coding for .gamma.-glutamyl transpeptidase derived from the genus Bacillus, accumulating .gamma.-glutamyl transpeptidase in the culture, and recovering .gamma.-glutamyl transpeptidase therefrom.
摘要:
An optical rotary encoder having a rotatable pulse scale having a row of code pattern with specific light-permeable or-deflection slits each for outputting a reference position signal and other light-permeable or reflection slits each adapted to reduce the amount of light for outputting an angular signal, both of the optical signals being photoelectronically converted and the waveform of the resultant electric signals being shaped based on threshold voltages into electric pulse signals indicative of a reference angle of 0.degree. and the accumulated angle of rotation, in which the circumferential width of each specific reference slit is made narrower than that of other slit so that the pulse width for angular position indicating of the angular pulse signal is always equal and constant for ensuring more accurate detection of the angle of rotation.
摘要:
A vacuum-type sewage collecting apparatus is arranged in such a manner that sewage discharged from the houses or facilities is once accumulated in a cesspool, and the sewage accumulated in the cesspool is then collected through a vacuum valve and a vacuum sewage pipe, the interior of which is under a negative pressure. The vacuum valve is operated by negative pressure taken from a vacuum source and supplied to the vacuum valve via a connecting pipe. The negative pressure for operating the vacuum valve is taken from a portion of a vacuum sewage pipe which is elevated at a level higher than that of the vacuum valve and is disposed downstream of the vacuum valve. Alternatively, the negative pressure may be directly taken from an accumulating tank, the inner pressure of which has been evacuated by a vacuum pump, from a pipe which establishes a connection between the accumulating tank and the vacuum pump, or from a tank connected to the pipe connecting the accumulating tank and the vacuum pump. In this way, a high negative pressure can be supplied to the vacuum valve to effectively and completely open the vacuum valve to thereby perform an efficient discharge of the sewage through the same valve.