摘要:
An internal combustion engine capable of efficiently supplying air to an exhaust path even in a high load state. The internal combustion engine includes a convergent section, a divergent section, and a branch section. The branch section branches a shock wave, propagating in a downstream direction at a higher velocity than exhaust gas flowing into an exhaust path from a combustion chamber when an exhaust valve is opened, from a portion of the exhaust path which is upstream with respect to the divergent section, and propagates the shock wave back to the exhaust path. The exhaust gas is caused to pass the convergent section and to collide against the shock wave between the branch section and the divergent section so as to increase the pressure of the exhaust gas in the convergent section. Such exhaust gas is caused to pass the divergent section to generate a new shock wave. A secondary air supply system includes a supply section arranged to supply air to a portion of the exhaust path which is upstream with respect to the divergent section, using a negative pressure generated by the newly generated shock wave.
摘要:
A multi-cylinder internal combustion engine capable of decreasing the pressure or temperature of exhaust gas. The internal combustion engine includes at least two cylinders and an exhaust path. The exhaust path includes a convergent-divergent nozzle and an exhaust merging section provided upstream with respect to an upstream end of the divergent section arranged to connect only exhaust ports of combustion chambers for which the opening periods do not overlap. A shock wave propagating in a merging upstream section is branched at a connection section, and the branched shock wave is reflected by an exhaust valve of cylinder and collides against the exhaust gas. In accompaniment with the passage of the exhaust gas having the pressure increased by the shock wave through the convergent-divergent nozzle, a new shock wave propagating in a downstream direction in the exhaust path is generated and also an expansion wave propagating in an upstream direction in the exhaust path is generated. Thus, the temperature and pressure of the exhaust gas are significantly decreased.
摘要:
A person's region is detected from input video of a surveillance camera; a person's direction in the person's region is determined; the separability of person's clothes is determined to generate clothing segment separation information; furthermore, clothing features representing visual features of person's clothes in the person's region are extracted in consideration of the person's direction and the clothing segment separation information. The person's direction is determined based on a person's face direction, person's motion, and clothing symmetry. The clothing segment separation information is generated based on analysis information regarding a geometrical shape of the person's region and visual segment information representing person's clothing segments which are visible based on the person's region and background prior information. A person is searched out based on a result of matching between a clothing query text, representing a type and a color of person's clothes, and the extracted person's clothing features.
摘要:
In a tracking system for tracking a moving object by using a particle filter, the particle filter is configured to arrange particles initially, in a standby state, in a given background region provided in the screen of a camera and to rearrange the particles with respect to the moving object in accordance with a change in likelihood that the object has with respect to the particles.
摘要:
A method is described for producing an L-amino acid or a nucleic acid by culturing a microorganism having an ability to produce the L-amino acid or nucleic acid in a liquid medium in a fermentation tank containing a stirring impeller, and optionally adding seed crystals to the medium as required to produce and accumulate crystals of the L-amino acid or nucleic acid in the medium, and collecting crystals of the L-amino acid or nucleic acid from the culture. The power density of the stirring impeller is controlled to be 2.4 kW/m3 or lower after either precipitation of the crystals or addition of the seed crystals.
摘要:
An outboard motor includes an engine, a first exhaust passage, a partition, a communication portion, an exhaust gas concentration sensor, and a catalyst. The engine is arranged to support a crankshaft extending along an up-down direction. The first exhaust passage is connected to the engine and is arranged to exhaust exhaust gas of the engine into water. The partition is arranged to partition an inside of the first exhaust passage into an upstream side and a downstream side. The communication portion is arranged to make the upstream side communicate with the downstream side of the partition in the first exhaust passage. The exhaust gas concentration sensor is arranged on the upstream side of the partition in the first exhaust passage. The catalyst is arranged on an upstream side of the exhaust gas concentration sensor in the first exhaust passage.
摘要:
A method for manufacturing a solid electrolytic capacitor, capable of joining a bolster member interposed between an anode lead and an anode lead frame to the anode lead frame with good adhesion property and high positional accuracy where a bolster member is obtained from a ladder-shaped frame such that a width of the bolster member in a direction perpendicular to a lead-out direction of an anode lead is larger than a width of an anode lead frame, and the bolster member is aligned with the anode lead frame while being chucked, and then is joined to the anode lead frame.
摘要:
An outboard motor includes an engine and an exhaust pipe. The engine has a crank case, a cylinder body, and a cylinder head aligned along the front-rear direction of the outboard motor, and arranged to support a crankshaft so as to extend along an up-down direction. The exhaust pipe is arranged to lead an exhaust gas of the engine to a main exhaust passage positioned below the engine. The cylinder head has an exhaust gas outlet opened in the side portion on one side of the cylinder head in the left-right direction of the outboard motor. The exhaust pipe has a bypass exhaust pipe which, in a plan view, extends from the exhaust gas outlet, bypasses the engine along the crank case, and reaches the other side in the left-right direction of the engine.
摘要:
A host terminal transmits print request information including an IP address to a network printer and provides the network printer with print data in storage in response to an acquisition request. When the print request information is received, the network printer saves the received print request information in storage. When authentication information is received together with a print request, the network printer judges eligibility for using print data on the basis of the authentication information received. When it is judged that a user is eligible to use the print data, the network printer acquires the print data form the host terminal and performs printing. When print request information is not present in the storage, the network printer acquires print request information from other network printers.
摘要:
A power circuit includes: a frequency dividing circuit dividing the frequency of a first signal to which a level shift processing has been applied; a boosting circuit boosting the voltage according to an output signal from the frequency dividing circuit or a second signal having a lower frequency than that of the first signal as a boosting pulse; a level shifter; and a switching unit. The switching unit obtains a boosted voltage output from the boosting circuit after a boosting operation, performed by the boosting circuit having received the second signal, inputs the boosted voltage output to the level shifter such that the level shifter can execute level conversion of the first signal, and stops the boosting operation performed according to the second signal, thereafter inputting the level-shifted first signal to the boosting circuit via the frequency dividing circuit to obtain a final boosted voltage.