摘要:
Disclosed is a catalyst which can convert ammonia contained in exhaust gas from an engine of a vehicle equipped with a Urea-SCR (Urea-Selective Catalytic Reduction) system, to nitrogen, and a method for preparating the same. The catalyst can convert ammonia which is failed to participate in a conversion reaction of NOx to N2 and slipped out of the SCR catalyst, to nitrogen via a SCO (Selective Catalytic Oxidation) reaction, before the ammonia is released to the air.
摘要:
Disclosed is a catalyst which can convert ammonia contained in exhaust gas from an engine of a vehicle equipped with a Urea-SCR (Urea-Selective Catalytic Reduction) system, to nitrogen, and a method for preparating the same. The catalyst can convert ammonia which is failed to participate in a conversion reaction of NOx to N2 and slipped out of the SCR catalyst, to nitrogen via a SCO (Selective Catalytic Oxidation) reaction, before the ammonia is released to the air.
摘要:
Provided are a capacitor digital-to-analog (DAC), an analog-to-digital converter (ADC) including the capacitor DAC, and a semiconductor device. The DAC includes at least one dummy capacitor configured to cause capacitors included in a capacitor array to have a capacitance that is an integer multiple of the capacitance of a unit capacitor.
摘要:
The present invention relates to an exhaust gas purifying device for a diesel engine, which purifies efficiently Nitrogen Oxides (NOx) and Particulate Matters (PM) contained in exhaust gases of the diesel engine, particularly provides an exhaust gas purifying device disposed in an exhaust passage of a diesel engine, wherein a catalyst part for reducing Nitrogen Oxides and a filter part for removing Particulate Matter are provided sequentially from an upstream for a flow of the exhaust gas and a diesel fuel injector is mounted at a front of the Nitrogen Oxide reduction catalyst part.
摘要:
A semiconductor package has a first substrate having a plurality of electrically conductive patterns formed thereon. A first semiconductor die is coupled to the plurality of conductive patterns. A second semiconductor die is coupled to the first semiconductor die by a die attach material. A third semiconductor die is coupled to the second semiconductor die by a die attach material. A second substrate having a plurality of electrically conductive patterns formed thereon is coupled to the third semiconductor die. A plurality of contacts is coupled to a bottom surface of the first substrate. A connector jack is coupled to the second substrate. A plurality of leads is coupled to the second semiconductor die by conductive wires.
摘要:
Disclosed is a catalytic filter for removing soot particulates from diesel engine exhaust, which is comprised of monolithic oxidation catalyst upstream of the catalytic filter, which effectively oxidize gaseous pollutants and volatile organic fractions, and a catalyzed wall-flow filter downstream serving to low temperature combustion of soot particulates collected on the filter. Also, the preparation method of the catalytic filter is provided, including the colloidal mixture solution of platinum group metal salts and other metal salts with a water-soluble polymer and a reducing agent, which is then impregnated on a catalyst support, followed by calcining at high temperatures. In the present invention, use of the catalytic filter provides effective means of abating diesel exhaust pollutant emissions, that is, particulate matter (PM) and gaseous pollutants (HC, CO, NOx).
摘要:
A handle for a swing-type exercising device has an adjustable shaft extender connectable to a resistance as the handle is swung for exercise purposes. The handle can also have an offset extension that allows a resistance to apply a torque force to the handle shaft as a swing approaches a hitting region. Split grips on the handle can be independently adjustable for rotation or non-rotation relative to the handle shaft so that resistance to the torque can be assigned to different hands holding the independent grips.
摘要:
A substrate processing apparatus includes a process chamber, a fixed frame, a feed unit, and a supplying unit. A substrate is mounted to the fixed frame, the supplying unit is spaced apart from respective sides of the substrate to supply process fluid to the substrate, and the feed unit transports the fixed frame parallel to a longitudinal direction of the substrate. The process is automatically performed so that loss of the substrate is reduced and the substrate is effectively processed.
摘要:
A variable spring resistance to movement of a rod uses a plurality of springs permanently connected between a base and a stack of end connector links extending in the direction of the rod movement. Selecting which of the links is connected to the rod then determines which of the springs are deployed to resist movement of the rod, without requiring any disconnection or reconnection of the springs. The selection can be made by a pin inserted through an aligned hole between a link and the rod.
摘要:
Disclosed is a catalytic filter for removing soot particulates from diesel engine exhaust, which is comprised of monolithic oxidation catalyst upstream of the catalytic filter, which effectively oxidize gaseous pollutants and volatile organic fractions, and a catalyzed wall-flow filter downstream serving to low temperature combustion of soot particulates collected on the filter. Also, the preparation method of the catalytic filter is provided, including the colloidal mixture solution of platinum group metal salts and other metal salts with a water-soluble polymer and a reducing agent, which is then impregnated on a catalyst support, followed by calcining at high temperatures. In the present invention, use of the catalytic filter provides effective means of abating diesel exhaust pollutant emissions, that is, particulate matter (PM) and gaseous pollutants (HC, CO, NOx).