摘要:
Antibiotics RK-1061s having a novel chemical structure and a method of production thereof.They have a structural formula represented by general formula(I) wherein A represents R1 or R1CH(OR2)CH2. R2 represents 3-methylglutaric acid residue and R3 represents a sulfate group or a hydrogen atom. The process comprises culturing a ray fungus belonging to the genus Streptomyces and isolating RK-1061s from the culture. Streptomyces sp. SN-1061Ms (FERM BP-5800) is capable of stably producing RK-1061 at a high productivity.
摘要:
Disclosed is a novel, high molecular weight aliphatic polyester having excellent mechanical strengths such as breaking strain and containing a copolymer structure with 3-alkoxy-1,2-propane diol and a method of producing the aliphatic polyester in an industrially advantageous manner. The aliphatic polyester is a biodegradable high molecular weight aliphatic polyester having an ester structure derived from 3-alkoxy-1,2-propane diol.
摘要:
A method of producing a rare earth anisotropic bond magnet comprising the steps of:melting an aloy composed of 10-30 atom % of R (wherein R designates at least one rare earth element including yttrium), 2-28 atom % of boron and 65-82 atom % of M (wherein M designates at least one of iron, cobalt and nickel) and rapidly cooling the melted alloy to produce powder material,subjecting the material to stamping at the temperature of 300.degree.-900.degree. C. in an inert gas atmosphere to pulverize and press the material to a scaly shape andcooling the pulverized material so that a magnetic anisotropy is produced in the vertical direction relative to the pressed surface.
摘要:
A local communication system among ISDN terminal equipment in a user's premises are connected to a local passive bus of the LSDN basic-access interface. The present system can establish the local communication through a network termination unit among ISDN termination equipment. In order to establish such a local communication, a multiframing scheme is taken on a passive bus forming multiframes by combining together the predetermined number of frames which are as defined in the I.400 series of CCITT recommendations. The network termination unit has a switching device for coupling two circuit-switched type communication channels (B1, B2) on the passive bus in one direction of transmission with the two other channels (B2, B1) in the other direction to establish local communication. Alternatively, the switching device couples the two channels on the passive bus with those on the subscribed line to establish external communication. Each of the terminal equipments has a device for requesting the local communication when required.
摘要:
The ISDN user-network interface is defined in the CCITT D-channel protocol recommendation (I-400 series recommendations), in which many kinds of communication terminals (e.g. faximile, telephone, teletex, etc.) can communicate through a subscriber line. The user-network interface is improved from the view point of effectiveness of terminal usage, provision of communication service, and, flexibility of system configuration, by providing a control terminal in the subscriber. The control terminal doubles as ordinary terminal equipment, and has a global control function for controlling other subscriber terminal equipment. The control terminal establishes and/or releases a local control phase in which a control terminal controls ordinary terminal equipment in the same subscriber to have them correspond to the communication with another subscriber using the means which belong to the ordinary terminal equipment inherently. The control terminal operates as an ordinary terminal apparatus when it is not in local control phase.
摘要:
An apparatus for detecting a tone signal in a telephone switching system is provided in which a calculation, in particular, multiplication is performed by a table look-up process in a digital memory, instead of using a conventional complicated multiplier. A tone signal of a particular frequency in a telephone line is detected through a discrete Fourier transform process (DFT), by the calculation of s(i)=x(iT).times.sin(i2.pi.fT), c(i)=x(iT).times.cos(i2.pi.fT), S=.SIGMA.s(i), C=.SIGMA.c(i), and P=S.sup.2 +C.sup.2. In the above calculation, the multiplication (x(iT).times.sin(i2.pi.fT), and x(iT).times.cos(i2.pi.fT)) is performed by a table look up method in a read only memory (ROM). Thus, the calculation is simplified. Further, the ROM has cells for only the discrete particular levels of multiplicands and/or the multipliers to reduce the capacity of the ROM, and the ROM is referred to by the multiplicand and/or the multiplier through the conversion of the same by a coefficient number generator.
摘要翻译:提供了一种用于在电话交换系统中检测音调信号的装置,其中通过数字存储器中的表查找处理来执行计算,特别是乘法,而不是使用传统的复杂乘法器。 通过离散傅立叶变换处理(DFT),通过计算s(i)= x(iT)xsin(i2 pi fT),c(i)= x(...),检测电话线中特定频率的音调信号 iT)xcos(i2 pi fT),S = SIGMA s(i),C = SIGMA c(i)和P = S2 + C2。 在上面的计算中,通过在只读存储器(ROM)中的表查找方法执行乘法(x(iT)xsin(i2 pi fT)和x(iT)xcos(i2 pi fT))。 因此,简化了计算。 此外,ROM具有仅用于离散的特定等级的被乘数的单元和/或乘法器以减小ROM的容量,并且ROM被乘法器和/或乘法器通过将其转换为系数而被引用 数字发生器。
摘要:
The present invention provides a roll-up shade apparatus for a vehicle with enhanced assemblability. This roll-up shade apparatus includes a shade that opens and closes an internal opened part of a roof; a retractor that rolls up the shade from a base-end thereof; second wire drums disposed in coaxial with the retractor, a wire being wound around each of the second wire drums that winds up or feeds the wire together with an opening/closing of the shade; elastic members that engage the retractor with the second wire drums. The retractor includes a pipe retractor and cap retractors in a cylindrical shape each having a bottom, which are fit inside the pipe retractor, and each of the elastic members is installed inside the cap retractor in such a manner that one end of the elastic member is engaged with one of the second wire drums and the other end of the elastic member is engaged with the bottom of the cap retractor, and each of the cap retractors locked to each opening end portion of the pipe retractor so as to rotate together with the pipe retractor.
摘要:
In a communication system which handles both a demand call, and a reservation call which appoints the start time and the end time of the communication, the reservation call must be connected at the desired time even if the circuits are full of the demand calls. The service process node which has a data base storing the information of the reservation calls, tries to connect the reservation call repetitively until the scheduled end time of the reservation call in every predetermined pause, if the circuits are full of the demand calls. Also, when it is anticipated that the circuits would be full at the desired time, the service process node suggests to the subscriber the alternative time for reservation.
摘要:
A piezoelectric buzzer includes a tone generator formed by bonding, to a resilient thin plate, a piezoelectric element having deposited thereon thin film electrodes, and an oscillation circuit formed by electronic parts connected to the electrodes. A conductive carrying area of a predetermined pattern is formed on the upper surface of the piezoelectric element along nodal points of vibration of the tone generator, and the electronic parts are fixedly mounted on the carrying area to constitute the oscillation circuit.
摘要:
The present invention provides a roll-up shade apparatus for a vehicle with enhanced assemblability. This roll-up shade apparatus includes a shade that opens and closes an internal opened part of a roof; a retractor that rolls up the shade from a base-end thereof; second wire drums disposed in coaxial with the retractor, a wire being wound around each of the second wire drums that winds up or feeds the wire together with an opening/closing of the shade; elastic members that engage the retractor with the second wire drums. The retractor includes a pipe retractor and cap retractors in a cylindrical shape each having a bottom, which are fit inside the pipe retractor, and each of the elastic members is installed inside the cap retractor in such a manner that one end of the elastic member is engaged with one of the second wire drums and the other end of the elastic member is engaged with the bottom of the cap retractor, and each of the cap retractors locked to each opening end portion of the pipe retractor so as to rotate together with the pipe retractor.