摘要:
A routing control communication system includes a circuit switched network provided with a service control information database having a telephone numbers table, an interconnection network provided with a network communication protocol and an information terminal, and a network interworking equipment provided with one terminal connected with the circuit switched network and the other terminal connected with the interconnection network. The information database is connected with the interconnection network, and the information terminal of the interconnection network is constituted so as to obtain a transferred terminal number corresponding to a called telephone number from the service control information database.
摘要:
A novel enzyme which is useful in the optical resolution of D,L-pantolactone via D-selective asymmetric hydrolysis and a gene encoding the the same are provided. The invention discloses the gene coding for a natural D-pantolactone hydrolase (for example, one originating in Fusarium oxysporum) or proteins having an activity substantially equivalent thereto; host cells transformed with DNA containing a nucleotide sequence coding for said protein, processes for producing said protein via using said host cells and uses of said proteins and host cells.
摘要:
A dielectric lens antenna includes a dielectric lens, a primary radiator and a dielectric member provided between the dielectric lens and the primary radiator. The dielectric member is formed into a substantially circular cone shape, and the dielectric constant of the dielectric member is reduced continuously in the radial direction of the dielectric lens from the center line passing through the center of the dielectric lens and the primary radiator.
摘要:
In a recording apparatus, a pit gain selection circuit 33 converts an amplitude proportional to pit length data into gain data, and outputs the gain data to a pit cutting signal generation circuit 39 via a timing adjustment circuit 35. The generation circuit 39 selects gain data proportional to each pulse duration of a pit signal and converts it into an analog signal. A groove correction value selection circuit 41 converts the analog signal into a groove correction value on the basis of the pit length data, and outputs the groove correction value to a groove correction signal generation circuit 47 via a timing adjustment circuit 45. The generation circuit 47 calculates a magnitude of groove signal correction, converts it into an analog signal, and outputs it to a subtractor 51. The subtractor 51 subtracts the analog signal from this analog signal. Power equivalent to power to be superposed on a light beam used for forming grooves because of the side lobe of a light beam used for forming pits is canceled only during cutting for forming pits. There is thus provided a recording apparatus capable of manufacturing an optical disk from which signals properly representing pits and grooves can be reproduced even when the density of tracks is physically increased.
摘要:
A recording apparatus locates a photo detector at a predetermined position on an optical base, stopping the rotation of a resist master disk, activating a focusing laser, and optimally positioning a head by means of a head slider control circuit. The resist master disk then starts to rotate, followed by the starting of a focus servo circuit. A focus fine adjust circuit effects a fine movement of the photo detector using positioning data to achieve optimum focusing. A differential amplifier serves to cause a recording lens to adjust to nullify the error signal. Display information is compared with the focusing position data and, when the numerical information coincides with the focusing position data, the above-mentioned focusing data is used as optimum focusing position data for the initial setting of the optimum focusing position. The use of optimum focusing position data in the form of numerical values permits easy initial setting of the optimum focusing position for different types of resist master disks.
摘要:
The present invention is directed to an image processing device that can prevent the occurrence of moire patterns when processing a dot image. An image processing device according to the present invention comprises an image memory for storing multi-gradational image data, an area-deciding portion for deciding an area of pixels PIX (x, y) of a multi-gradational image stored in the memory and outputting a decision signal SEL=0 when the pixel is a character area pixel or a decision signal SEL=1 when the pixel is a halftone area, a binarizing portion for character for binarizing a character image pixel PIX (x, y) of the multi-gradational image data stored in the memory and outputting a binarized image data L, a binarizing portion for photograph for binarizing a halftone image pixel PIX (x, y) of the multi-gradational image data stored in the memory and outputting a binarized image data P, an output selecting portion for selectably outputting binarized image data B which is the binarized image output L from the binarizing portion for character when the output SEL of the area deciding portion is 1 or the binarized image output P from the binarizing portion for photograph when the output SEL is 0, and a memory for storing binarized image data outputted from the output selecting portion.
摘要:
In a process for the production of a D-.alpha.-amino acid, in which an N-carbamyl-D-.alpha.-amino acid corresponding to the general formula: ##STR1## wherein R represents phenyl, hydroxy-substituted phenyl, substituted or unsubstituted alkyl, or thienyl, is converted by a microbial enzyme in an aqueous medium to a D-.alpha.-amino acid corresponding to the general formula: ##STR2## wherein R is the same as defined above, decarbamylase produced by a microorganism of the genus Comamonas, Blastobacter, Alcaligenes, Sporosarcina, Rhizobium, Bradyrhizobium or Arthrobacter is used as the enzyme converting the N-carbamyl-D-.alpha.-amino acid to the D-.alpha.-amino acid.The conversion of the N-carbamyl-D-.alpha.-amino acids to the D-.alpha.-amino acids is carried out in a neutral to alkaline pH range.
摘要:
The present invention has disclosed the amino acid sequence and nucleotide sequence of the .alpha.- and .beta.-subunits of two types of nitrile hydratase derived from Rhodococcus rhodochrous J-1. The DNA fragment encoding nitrile hydratase is inserted into an expression vector and the recombinant vector is used for transformation. The transformant contains multiple copies of the gene and can produce much higher level of nitrile hydratase compared with conventionally used microorganisms.
摘要:
A process for the production of 8,11-eicosadienoic acid or a lipid containing 8,11-eicosadienoic acid comprising the steps of, culturing a microorganism having an ability to produce an omega 9 type polyunsaturated fatty acid in a medium supplemented with a .DELTA.5 desaturase inhibitor, or adding a .DELTA.5 desaturase inhibitor to a medium in which said microorganism has been cultured and further culturing the microorganism to produce 8,11-eicosadienoic acid, or a lipid containing 8,11-eicosadienoic acid, and recovering the 8,11-eicosadienoic acid, or the lipid containing 8,11-eicosadienoic acid.
摘要:
A composition for inhibiting .DELTA..sup.5 -desaturase comprising an effective ingredient selected from the group consisting of lignan compounds, curcumin and piperonyl butoxide. As the lignan compounds sesamin, sesaminol, episesamin, episesaminol, sesamolin, 2-(3,4-methylenedioxyphenyl)-6-(3-methoxy-4 -hydroxyphenyl)-3,7-dioxabicyclo[3.3.0]octane, 2,6-bis-(3-methoxy-4-hydroxyphenyl)-3,7-dioxabicyclo[3.3.0]octane, and 2-(3,4-methylenedioxyphenyl)-6 -(3-methoxy-4-hydroxyphenoxy)-3,7-dioxabicyclo[3.3.0]-octane are used. Moreover the effective ingredient may be a sesame oil extract or sesame seed extract.