摘要:
A method for removing nitrogen oxides from combustion exhaust gases obtained after removing sulfur oxides by a wet process, which is characterized in that the gases obtained after removing sulfur oxides from the combustion exhaust gases by a wet process are introduced into a wet electrostatic precipitator to remove most of the impurities such as dusts, fumes and mists, passed through a dummy catalyst layer in the form of a fixed bed or a moving bed to remove the remaining impurities which is set before or after heating the gases to a temperature suitable for the reaction of reducing nitrogen oxides, and passed through a metal oxides catalyst layer in the form of a fixed bed in the presence of ammonia which is used at least in the stoichiometric amount required for reducing nitrogen oxides to nitrogen gas by which the gases containing nitrogen oxides are reduced to harmless gases.
摘要:
A method for heat recovery in the processes of the removal of nitrogen oxides from exhaust gases containing sulfur oxides and nitrogen oxides by a catalytic or non-catalytic reduction thereof with ammonia. After passing through the reaction zone for the reduction of nitrogen oxides the down flow gases are subjected to the submitted air in a heat exchanger. The process is characterized in that the molar ratio of ammonia to sulfuric anhydride and the concentration of steam in the gases at the inlet of the heat exchanger is controlled in the range of O
摘要:
A method for the removal of nitrogen oxides from heavy oil combustion exhaust gases containing nitrogen oxides, sulfur oxides and dusts by a catalytic reduction process using a moving catalyst bed reactor wherein the exhaust gases are catalytically contacted with ammonia at 250.degree. to 450.degree. C., which is characterized in that a sealing gas having a temperature of 200.degree. C. or higher, preferably 280.degree. C. or higher, and a pressure higher than the average pressure at the outlet and inlet of the moving catalyst bed reactor is introduced into the portions of the reactor where the catalyst is taken out therefrom and is again supplied thereto, whereby the decrease of the catalyst activity can be effectively prevented.
摘要:
A method for the removal of the dusts from combustion exhaust gases, particularly those of heavy oils, by using a fixed packed bed without a remarkable increase in the pressure loss at the fixed packed bed, which is characterized in that the filler filled in the fixed packed bed is a spherical, cylindrical or annular filler containing pores having a pore diameter which ranges from 100 to 70,000 A and a pore volume of not less than 0.1 cm.sup.3 /g, at least 20% of the pores have a pore diameter of not less than 1,000 A, and the filler having a diameter of 1 to 15mm at a minimum.
摘要:
When a played scene of a VCR (sequential access recorder) (90) is overwritten or added to the play list derived from the cut edit of the video scenes already stored in a disk (random access recorder) (140) according to the first instruction of a user, a selector (96) switches the play output of the disk following the play list and said played scene of the VCR to provide it to a monitor (6A) so that the user can confirm the edit result during the recording in real time. If there is the second instruction (VIEW instruction) during the recording, it plays the same edit result of the disk (140) again based on the renewed temporary play list to provide it to the monitor (6A) without interrupting the recording. On this occasion, it approves the user to change the play speed and stops advancing the play if the user try to play beyond the recorded point. Then, the user can confirm the recorded video portion without waiting the completion of the recording and without interrupting the recording even during the recording from the external VCR.
摘要:
A feedthrough cell or cap cell includes a basic pair of a gate electrode and pairs of P-type diffused regions and N-type diffused regions. With this structure, even if a design change arises after the completion of a layout plan, a logic circuit can be formed from the basic pair; hence, the design change can be flexibly handled.
摘要:
A communication control apparatus comprising a transmission source/destination address storing unit which stores transmission source addresses specifying a plurality of signal input terminals, and transmission destination addresses paired in advance with signal input terminals in advance; a transmission signal generating unit which adds transmission source addresses and transmission destination addresses corresponding to signal input terminals to which signals have been input; a reception source/destination address storing unit which stores reception source addresses, specifying a plurality of signal output terminals, and reception destination addresses, specifying the transmission source of signals; and a reception signal decoding unit which outputs a signal to one or a plurality of output terminals having the reception source/destination address, stored in the reception source/destination address storing unit, matching the transmission source/destination address transmitted. The communication control apparatus is capable of transmitting a plurality of signals to a plurality of destinations through a communication line without any assistance of another apparatus and is capable of receiving in the same way.
摘要:
A communication controlling apparatus comprising a transmission line error detecting circuit 30 which determines whether a transmission line error is detected or not in the data transmitted from its own node without immediately disabling a P-channel MOS transistor 20 or N-channel MOS transistor 21 as output gates when an error is detected in one of the transmission lines (BUS+line 11 or BUS-line 12), a sequence control circuit 31 which informs all the other nodes that the error is detected in its own node, and a selector 27 which determines whether the transmission line error detecting circuit 30 has detected or not the transmission line error in the transmit start (SOF) period and selects a differential comparator. The reliability of communication is improved when an error is detected in one of the transmission lines.
摘要:
Collagen beads prepared by adding spherical droplets of an aqueous liquid of collagen to an aqueous solution of tannin. The collagen beads show a uniform grain size and have either a two-layered structure consisting of an aqueous liquid sustained inside a solidified outer surface or a completely solidified form.
摘要:
A Data transmission device controlled by a processor which has a transmission control apparatus (14) which re-transmits transmission data which was previously set by a microcomputer (10) and which was unable to be transmitted in a first transmission attempt. The transmission control apparatus (14) has a transmit data word number comparing circuit (28) which determines whether a value of a set transmit data word number is within the limits prescribed by a communication standard. In the event of a failed transmission attempt, the microcomputer sets a transmit data word number greater than the number prescribed by the communication standard.