摘要:
A number of embodiments of exhaust silencers for marine propulsion units including an exhaust device having a first expansion chamber, a pair of second expansion chambers and a third expansion chamber all formed within a common housing. The flow of exhaust gases is from the exhaust of the engine into the first expansion chamber, directly from the first expansion chamber into each of the pair of second expansion chambers and directly from the second expansion chambers to the third expansion chamber. In all embodiments the flow from the second expansion chambers to the third expansion chamber is in confronting relationships so as to improve silencing. In one embodiment, the second expansion chambers have different effective volumes so as to provide an extended range of tuning for the silencing.
摘要:
An exhaust silencing system for a small planing craft includes a first expansion chamber housing on one side of a water craft which transmits exhaust gases and waste cooling water to a second expansion chamber housing which may have a number of expansion chambers. A long exhaust pipe extends from the second expansion chamber housing to the atmosphere.
摘要:
A magnetic migration display panel including a dispersion liquid layer composed of a magnetic particle, a dispersion medium composed of an organic solvent, a thickening agent composed of fatty acid bis-amide with a hydroxyl group having a melting point of 120.degree. C. to 160.degree. C., and a coloring material as desired, on a substrate is provided.
摘要:
In an underbody structure for a rear-engine rear-drive car or a midship-engine rear-drive car, a dash panel for separating the passenger compartment from a trunk formed at the front of the body is provided with a concave portion projecting into the passenger compartment in the lower portion of the dash panel substantially at the center thereof and the fuel tank is disposed partly in the concave portion and partly in the trunk.
摘要:
The invention provides both a partial and a full vehicle body frame. In both of the frames, a front unit is connected at its lower portion to a floor unit at its front portion. A connection line of both the units tapers inward transversely as it progresses toward a front end of the floor unit.
摘要:
A magnet device is provided with two static magnetic field generating sources 14a and 14b disposed so as to oppose each other while placing a person to be inspected therebetween, a vessel 15 containing the static magnetic field generating source 14a and a vessel 16 containing the static magnetic field generating source 14b, and the vessels 15 and 16 are disposed at positions asymmetric with respect to the person to be inspected. Thereby, a magnet device and an MRI device using the same which can extend a space above the person to be inspected on a bed while avoiding introduction of a large scale device which causes to increase the manufacturing cost thereof.
摘要:
A dispersion composition suitable for a magnetic display which comprises 10 to 30 wt % of magnetic particles having a particle diameter of 10 to 150 .mu.m, 0.01 to 0.5 wt % of an antistatic agent, 1 to 10% by weight of an organic thickening agent, 0.1 to 10% by weight of a colorant and a balance of an organic dispersing medium.
摘要:
A scanning probe microscope according to the present invention comprises a cantilever having a free end portion and a fixed end portion, the free end portion bearing a probe thereon, a semiconductor laser attached to the fixed end portion of the cantilever, an optical waveguide for guiding a laser beam, emitted from the semiconductor laser, to the free end portion, an optical element for dividing part of a center beam of the laser beam, guided through the optical waveguide, into laser beams in at least two perpendicular directions, a photoelectric transducer for receiving the divided laser beams and converting the laser beams into electrical output signals corresponding thereto, and a differential circuit for receiving the electrical signals and subjecting the signals to predetermined arithmetic processing, thereby detecting a three-dimensional displacement of the free end portion of the cantilever.
摘要:
A scanning probe microscope according to the present invention comprises a cantilever having a free end portion and a fixed end portion, the free end portion bearing a probe thereon, a semiconductor laser attached to the fixed end portion of the cantilever, an optical waveguide for guiding a laser beam, emitted from the semiconductor laser, to the free end portion, an optical element for dividing part of a center beam of the laser beam, guided through the optical waveguide, into laser beams in at least two perpendicular directions, a photoelectric transducer for receiving the divided laser beams and converting the laser beams into electrical output signals corresponding thereto, and a differential circuit for receiving the electrical signals and subjecting the signals to predetermined arithmetic processing, thereby detecting a three-dimensional displacement of the free end portion of the cantilever.
摘要:
An open-type magnet device for MRI includes a pair of upper and lower magnet assemblies, and shims are provided on opposite sides of their cooling containers and/or in holes passing through central portions of the cooling containers so as to facilitate providing a highly homogeneous static magnetic field.