摘要:
An apparatus and method of highly efficiently purifying nitrogen oxides are provided. An NOx chemisorption reduction catalyst chemically absorbs NOx under a condition that an exhaust gas of an internal combustion engine is an oxidizing atmosphere and deoxidizes adsorbed NOx under a reducing atmosphere. An SOx absorbent absorbs SOx contained in the exhaust gas of the oxidizing atmosphere, and deoxidizes and release SOx absorbed in the reducing atmospheric exhaust gas. The catalyst and absorbent are arranged in the exhaust path to purify the exhaust gas while preventing or suppressing SOx-poisoning of the NOx chemisorption reduction catalyst.
摘要翻译:提供了高效净化氮氧化物的装置和方法。 NOx化学吸附还原催化剂在内燃机的排气是氧化气氛并在还原气氛下脱氧吸附的NOx的条件下,化学吸收NOx。 SO x吸收剂吸收氧化气氛的废气中所含的SOx,并且还原和释放在还原气氛废气中吸收的SO x。 催化剂和吸收剂布置在排气路径中以净化废气,同时防止或抑制NOx化学吸附还原催化剂的SOx中毒。
摘要:
A multiprocessor system having a redundant shared memory configuration includes a plurality of processors, each of which are connected to a shared system bus; and a plurality of shared system memory modules, e.g., dual shared system memory modules connected to the shared system bus. A first processor module is operative to write data in one of dual shared system memory modules and subsequently write the data in the other memory module, so as to ensure that the data in both dual shared system memory modules are equivalent to each other. A second processor module monitors a status of the first processor module, and discriminates whether a write operation for the other memory module is finished in normal termination or in abnormal termination in the case where the first processor module stopped operating. The second processor module copies data starting from the address of a first data in the unsuccessfully copied data from the first memory module to the second memory module.
摘要:
A shared storage configuration system for use in a computer system includes a plurality of processing modules. Each of the processing modules includes at least a main storage unit, a central processing unit and a connecting unit for connection to a system bus. The shared storage system also includes a plurality of shared storage modules. Each of the shared storage modules includes a shared storage unit and a connection unit for connection to the system bus. A space inherent in the processing modules is accessible by physical addresses of said central processing unit of each of the processing modules. A shared storage space is accessible by the physical addresses of said central processing unit of each of the processing modules. Further, the shared storage space is divided into a partially-shared storage space, a duplex configuration of the shared storage module is defined for each part of the partially-shared storage space, and another shared storage module is specified having an inverted value in a specific bit of its unit ID, in contrast with a unit ID of the shared storage module corresponding thereto.
摘要:
A shared storage configuration system for use in a computer system includes a plurality of processing modules and a plurality of shared storage modules. Each of the processing modules has at least a main storage unit, a central processing unit, and a connection unit for connection to a system bus. Each of the shared storage modules has a shared storage unit and a connection unit for connection to the system bus. A space inherent in the processing modules is accessible by physical addresses of the central processing units. The shared storage space is accessible either in program mode by the physical addresses of the central processing units or in direct memory access mode by relative addresses translated from the physical addresses output by the central processing units.
摘要:
An apparatus for purifying an exhaust gas emitted from an internal combustion engine, particularly, immediately after starting of the engine, includes a mechanism for reducing the time required to heat a catalyst converter to the activation temperature. The exhaust gas is passed through a preliminary catalyst close to the engine and then through a main catalyst downstream of the catalyst. The engine is operated with an air-fuel mixture which is richer than the amount indicated by the stoichiometric air/fuel ratio for a period of time from when engine is started until the main catalyst is heated to a temperature at which the catalyst can sufficiently perform its purifying capability. The preliminary catalyst is enabled to function at lower temperatures by combusting the exhaust gas which is generated during a rich air-fuel mixture condition. The main catalyst can be heated with the generated combustion heat, resulting in an enhancement in exhaust gas purifying capability.
摘要:
An exhaust gas cleaning system has a catalyzer provided in the exhaust passage of the engine and an adsorbent provided upstream from the catalyzer. The adsorbent temporarily adsorbs unburned hydrocarbons emitted in large amounts immediately after the engine is started. The system provides an amount of air required to substantially eliminate unburned hydrocarbons, based on the temperature of the adsorbent and the oxygen concentration in exhaust gas upstream from the catalyzer. An air supplying unit is provided upstream from the adsorbent. A temperature sensor is provided for the adsorbent. An oxygen sensor is provided at the inlet of the catalyzer. A control unit calculates the amount of air (oxygen) necessary for the catalyzer to convert the unburned hydrocarbons released from the adsorbent, based on signals from the temperature sensor and the oxygen sensor and the exhaust flow rate. The control unit accordingly controls the air supplying unit.
摘要:
A substrate for hybrid IC which comprises a substrate, a thick film resistor containing glass, formed on the substrate, and a thick film conductor at the terminal of the thick film resistor, where a means for preventing diffusion of the glass from the thick film resistor into the thick film conductor is provided between the thick film resistor and the thick film conductor has a stable resistance as a thick film microresistor and is applied to various uses such as cellular radio communication system.
摘要:
A multi-gated pulsed wave color Doppler imaging system is used to provide accurate non-invasive measurements of liquid flow through a narrowed orifice by using the color Doppler to first measure the velocity of flow along an axis perpendicular to the orifice to provide a first image of the liquid velocity. The first image includes a two-color interface at locations in the image representing locations where the liquid velocity is equal to the aliasing velocity of the color Doppler imaging system. The distance from the two-color interface to the center of the orifice is measured and saved. A second image is obtained along an axis perpendicular to the first axis to represent the flow of liquid to the orifice from the perimeter of the orifice. The distance from a two-color interface to the center of the orifice in the second image is measured. The two measured dimensions are used to model a hemi-ellipsoidal surface proximal to the orifice wherein all points on the surface have the same isovelocity. The surface area is multiplied by the aliasing velocity to obtain the volume fluid flow rate through the orifice. A third image can also be obtained along a third axis perpendicular to the first and second axes and used to model an alternative hemi-ellipsoidal isovelocity surface. In a further alternative, a single image can be used to model a panshaped isovelocity surface.
摘要:
Disclosed herein is a piezoelectric displacement element utilizing a sintered body obtained by stacking three or more ceramic layers (5a to 5h) through internal electrodes (6b to 6h) and co-firing the same. The sintered body has first, second and third regions when viewed in the direction of thickness. The first and third regions are so formed as to be displaced in reverse directions to each other. The second region consists of a plurality of piezoelectric ceramic layers (5d, 5e) in such a manner that an internal electrode (6e) interposed between the piezoelectric ceramic layers (5d, 5e) is connected with neither potentials in a driven state, whereby the second region is adapted not to be positively driven, to function as a buffer area.
摘要:
A piezoelectric ceramic composition comprises a major component, ##STR1## (where 0.01.ltoreq.X.ltoreq.0.40 and 0.ltoreq..alpha..ltoreq.1), and CuO contained therein as an additive in an amount of 0.05 to 2.5 wt % with respect to the weight of 1 mole of the major component. If required, this composition may contain 0.05 to 2.0 wt % of MnO.sub.2 with respect to the weight of 1 mole of the major component. The composition has excellent temperature characteristics in addition to excellent dielectric and piezoelectric characteristics suitable for use in various fields.