摘要:
An optical transmission apparatus that improves the reliability of system operation by efficiently limiting the line speed of a signal sent from a user with a guard mechanism. An optical branching section makes an optical signal branch in two directions. A through branching line passes an optical signal in its original condition and sends the optical signal as a through optical branch signal. A delay branching line delays an optical signal by a delay amount set and sends the optical signal as a delayed optical branch signal. An optical multiplexing section combines the through optical branch signal and the delayed optical branch signal. A line speed limitation section limits acceptance of the line speed of the optical signal inputted by generating a multiplexed optical signal that meets a pulse mask standard for an optical signal to be passed for the optical signal which is sent at a line speed lower than or equal to a line speed settled under contract with a user and which is to be passed and by setting the delay amount for generating a multiplexed optical signal that does not meet a pulse mask standard for an optical signal acceptance of which is to be refused for the optical signal which is sent at a line speed higher than the line speed settled under contract with the user and acceptance of which is to be refused.
摘要:
A method for forming a silicon nitride film which comprises heating a substrate (2) placed in the inner space (3) of a chamber (4) to a desired temperature, feeding a hexamethyl disilazane gas and a gas containing active species formed by the plasma excitation of an N2 gas to the chamber (4) holding the substrate (2), to thereby deposit a reaction product formed by the reaction of the hexaalkyldisilazan gas with the above active species and form the silicon nitride film. The method allows the formation of a silicon nitride film being reduced in the contents of carbon and hydrogen with safety and good efficiency.
摘要翻译:一种形成氮化硅膜的方法,其包括将放置在室(4)的内部空间(3)中的衬底(2)加热到所需温度,将六甲基二硅氮烷气体和包含由等离子体形成的活性物质的气体 将N 2 O 2气体激发到保持基板(2)的室(4),从而沉积由六烷基二硅氮烷气体与上述活性物质反应形成的反应产物,并形成氮化硅 电影。 该方法允许形成氮化硅膜,其安全性和效率降低了碳和氢的含量。
摘要:
Isonicotinanilide derivatives of the formula ##STR1## (wherein R.sub.1 is a hydrogen atom or a lower alkyl group; X is a halogen atom or methyl; n is an integer of from 0 to 2; R.sub.2 is phenyl, halo-substituted phenyl or a lower alkyl group; and Q is ##STR2## provided that Q is ##STR3## or --CH.sub.2 --when R.sub.2 is phenyl or halo-substituted phenyl, and Q is ##STR4## when R.sub.2 is a lower alkyl group) a process for preparing the same and a plant growth regulator containing the same are disclosed. The derivatives of the formula above have good activity for regulating the growth of various plants, especially of grassy plants.
摘要:
A mist generator may include a reservoir storing a solution, a plurality of ultrasonic vibrators, a mist delivery path, and a mist collector. The plurality of ultrasonic vibrators may be disposed under the reservoir and configured to apply ultrasonic vibration to the solution stored in the reservoir to generate mist of the solution in the reservoir. The mist delivery path may be configured to deliver the mist from an inside of the reservoir to an outside of the reservoir. The mist collector may be disposed above the solution in the reservoir, wherein an upper end of the mist collector may be connected to an upstream end of the mist delivery path, a lower end of the mist collector may include an opening, and a width of the mist collector may increase from the upper end toward the opening. The plurality of ultrasonic vibrators may be located directly under the opening.
摘要:
A method of growing semiconductor layers may include: growing a first semiconductor layer on a surface of a substrate at which a crystal layer is exposed, wherein the first semiconductor layer is different from the crystal layer in at least one of a material and a crystal structure; cutting the first semiconductor layer such that a cut surface of the first semiconductor layer extends from a front surface of the first semiconductor layer to a rear surface of the first semiconductor layer; and growing a second semiconductor layer on the cut surface of the first semiconductor layer, wherein the second semiconductor layer has a material and a crystal structure that are same as those of the first semiconductor layer.
摘要:
The present invention relates to serial asynchronous transmission of data of fixed length in which a start bit and a stop bit are inserted at the head and tail, respectively, of the data. The insertion of a fixed bit having a predetermined logical value every predetermined number of bits of the data allows an idle state period to be reduced up to the predetermined number of bits plus 1 bit, resulting in considerable improvement in transmission efficiency.
摘要:
A printing apparatus has a plurality of image forming sections that are removably attached to a body of the printing apparatus and form images of different colors. The apparatus includes a specifying unit such as an operation panel and a control unit. The specifying unit specifies an image forming section that performs printing. The control unit controls the image forming section specified by the specifying unit to form an image of a corresponding color. The apparatus further includes a plurality of detectors that detect the presence and absence of corresponding image forming sections in the body. When the detector detects that a specified image forming section is present, the control unit controls the specified image forming section to operate. When the detector detects that the specified image forming section specified is absent, the control unit does not control the specified image forming section to operate.
摘要:
A dispersion compensating method for carrying out automatic level control with the use of target output power and an ASE correction value corresponding to the number of wavelengths to multiplex and making output power of a wavelength multiplexed signal constant, comprising the steps of: switching into automatic gain control in which the output power of the wavelength multiplexed signal is made constant, to carry out increase/decrease of the wavelengths to multiplex; varying a dispersion compensating amount based on the increase/decrease of the wavelengths by the automatic gain control; calculating an ASE variation amount due to the change in the dispersion compensating amount; and reflecting the ASE variation amount on the ASE correction value and switching into the automatic level control.
摘要:
A power-down delay unit 15 for delaying cutoff of a voltage is provided in the power supply line for supplying power to an optical module 14 of a transponder unit 16 of each wavelength. The power-down delay unit 15 assigns a different delay in power disconnection each wavelength. The length of the delay is a time required by an AMP unit or longer to change from an ALC mode to an AGC mode. With the configuration, when the power supply for supplying power to the plurality of transponder units 16 becomes faulty and output of a number of wavelengths simultaneously stops, the actual optical signal gradually stops output wavelength by one wavelength. Thereby a nonlinear effect because of going up of a power of an optical signal too much is not occurred, therefore it is able to prevent an undesired influence for a wavelength not to be stopped.
摘要:
A color image printing apparatus has a plurality of positioning mechanisms each of which selectively positions a corresponding photoconductive drum at an operative position and a non-operative position. A controlling section selectively controls the positioning mechanisms in a first operation mode or in a second operation mode according to the color detected in the color plane by the color detecting section. The first operation mode is a mode where the controlling section causes a positioning mechanism corresponding to the color detected by the color detecting section to the operative position, and the positioning mechanism remains at the operative position throughout the job once it is brought to the operative position. The second operation mode is a mode where if only black is detected in the first page of a job then a photoconductive drum corresponding to black is brought to the operative position, and if any one of yellow, magenta, and cyan black is detected in a subsequent page, the controlling section causes all of the positioning mechanisms to be brought to their operative positions.