摘要:
According to the present invention, there is provided an optical fiber, an optical fiber ribbon and an optical fiber cable that reduce both the increase in transmission loss and the decrease in strength. According to an embodiment of the present invention, there is provided an optical fiber in which an outer circumferential surface of an optical fiber is coated with a primary coating layer. In the optical fiber, the primary coating layer includes a ultraviolet curable resin, and the ultraviolet curable resin contains 0.05 or more and 0.75 or less parts by weight of a reactive silane coupling agent and 0.05 or more and 0.75 or less parts by weight of an unreactive silane coupling agent.
摘要:
A substation instrument control system is disclosed. The substation instrument control system includes a plurality of transformers that generate a plurality of waveform signals representing electric properties of a substation instrument main body. A merging unit is communicatively coupled to the plurality of transformers and includes a signal processing unit and a control unit. The signal processing unit receives the plurality of waveform signals from the plurality of transformers and converts the plurality of waveform signals to a digital signal. The control unit controls operation of the signal processing unit using a setting data. An intelligent electronic device is communicatively coupled to the merging unit and receives the digital signal from the merging unit.
摘要:
A switching control system of circuit breaker, including at least: one switching control unit per circuit breaker, each of which inputs electrical quantity of power system voltage and main circuit current, state quantity of a circuit breaker, and an opening command signal or closing command signal of the circuit breaker, and performs control to cause the circuit breaker to open or close at a desired phase of the power system voltage or main circuit current; and a display operation unit connected with the switching control unit via a communication network and performs display operation to operate and monitor the operation and state of the switching control unit of circuit breaker. The switching control unit includes a first area for causing the circuit breaker to open or close at a desired phase of the power system voltage or current; and a second area for transmitting/receiving information via the communication network.
摘要:
The present invention provides a magnetic flux measuring device and magnetic flux measuring method for stationary induction electrical apparatus which can accurately measure the magnetic flux without being influenced by the DC offset component which superimposes on the measurement system, and can constantly and continuously measure the magnetic flux without setting a limit in the magnetic flux measurement period. The magnetic flux measuring method which measures a magnetic flux of a stationary induction electrical apparatus 2 using a voltage waveform of the stationary induction electrical apparatus 2, wherein the magnetic flux 151 of the stationary induction electrical apparatus 2 is determined by the steps of: inputting a voltage waveform 121 of the stationary induction electrical apparatus 2 into a negative-feedback amplification means 14 of which feedback circuit is constructed by a low pass filter; and integrating output of the negative-feedback amplification means 14 by integration means 15.
摘要:
A charge managing system including an image forming apparatus and a charge managing server is provided. The image forming apparatus includes plural applications each configured for executing a specific process on input data, a counter unit that counts a number of result items output as a result of executing at least one of the applications, a count value storage unit that stores a count value corresponding to the number of result items counted by the counter unit, and a storage area setting unit that secures a plurality of storage areas within the count value storage unit each of which storage areas is configured for storing a corresponding count value obtained for each of the applications. The charge managing server manages charging a fee for using the image forming apparatus based on the corresponding count value stored in each of the storage areas secured for each of the applications.
摘要:
To provide a component processing system and a component processing method in which components used by a plurality of applications are centrally managed, thereby enabling efficient response to changes in the components. Component environment definition information that shows locations of components used by the individual applications is composed of a component location definition information that defines the locations of the components, a component use definition information that defines the components to be used; and an application location definition information that includes an information designating the component use definition information corresponding to the individual applications. In response to a request from the application, a component managing unit in a framework requests a middleware to acquire the location of the component to be used by this application, and the middleware reads the component environment definition information to respond to the component managing unit.
摘要:
Push-pull signal is created on the basis of reflected-light detection signals output from four divided light receiving elements that receive a reflection of a recording laser light beam off an optical disk. The push-pull signal is sent to a gain variation circuit. The push-pull signal is normalized by setting the gain of the gain variation circuit to a low level in response to a mark forming section of a recording signal, but to a high level in response to a blank forming section of the recording signal. Wobble detection and pre-pit detection are performed on the basis of the normalized push-pull signal.
摘要:
A communication cable is provided that satisfies the requirement of Cat.6 for near-end cross talk wherein the difference between the maximum and minimum values of delay time among the four twisted wire pairs constituting the cable is within 25 ns/100 m. The communication cable is made by entwining four twisted wire pairs (T1), (T2), (T3), (T4) made by twisting pairs of insulated wires made by covering electrically conductive wires by polyolefin thermoplastic resin with each pair being twisted with a twist pitch different from the others (pitch: P1
摘要:
CLV-type recordable optical disk includes a plurality of tracks which are formed in such a manner that 2&pgr;Tp/&lgr; substantially equals an even-number multiple of 0.5 where Tp is a track pitch and &lgr; is a wavelength of a track wobble. Each of the tracks is divided into a plurality of ECC blocks, and each of the ECC blocks is composed of 16 sectors. Each of the sectors is composed of 26 sync frames. In each of the sectors of the track, information recording areas are set normally in even-numbered sync frames. However, in each portion where there would occur overlap in the information recording area, in the radial direction of the disk, between the track and an adjoining track located inward of the track, the information recording areas are set in odd-numbered sync frames. One piece of address information is divided into a plurality of address information elements and recorded dispersedly in the sync frames across a plurality of the sectors. With such arrangements, the optical disk can minimize adverse influences that would result from cross-talk between wobble signals from the adjoining tracks.
摘要:
A metal vapor 12 passing through a guide duct 13 from a vapor source 10 to a steel strip 1 is sampled through a takeoff pipe 14 to a measuring chamber 15. The metal vapor is irradiated with a measuring beam 20 in the chamber 15, to detect the absorbance of luminous energy in the metal vapor. The detected value of absorbance is used for the quantitative calculation of the metal vapor 12 passing through the guide duct 13, and the opening ratio of a shutter 17 provided in the guide duct 13 is adjusted on the basis of the calculation result so as to control the flow amount of the metal vapor 12 passing through the guide duct 13. In the case where a large amount of the metal vapor 12 passes through the guide duct 13, the amount of the metal vapor 12 reaching the measuring beam 20 is reduced by partially discharging the metal vapor 12 from the measuring chamber 15. Since the deposition amount of a plating metal is directly controlled in response to the amount of the metal vapor 2 passing through the guide duct 13, the amount of a deposited plating layer is controlled with high accuracy and with a quick response time in a continuous vapor deposition coating line.