摘要:
A multi-plane electronic scan ultrasound probe having a rotary member rotatably mounted on a distal end portion of an elongated catheter member of the probe and support thereon an ultrasound transducer consisting of a row of a large number of ultrasound elements. The rotary member is connected to a rotation control knob on a manipulating head of the probe by way of rotation transmission wires extended through the catheter member and via a drive pulley mounted on the manipulating head in association with the rotation control knob to turn the ultrasound transducer through an arbitrary angle in multi-plane electronic scanning by manipulation of the rotation control knob. In addition, for the purpose of tilting the ultrasound transducer through a desired angle, the ultrasound probe is provided with a tilting mechanism to tilt the rotational axis of the rotary member in a predetermined direction, including a tiltable support for the rotary member, a tilt control means provided on the manipulating head, and a tilt signal transmission means for transmitting a tilt control signal from the tilt control means to the tiltable support.
摘要:
An ultrasound diagnostic apparatus and a probe therefor for a body cavity of a patient are disclosed. The probe comprises a transducer which rotates to obtain sectional ultrasound images along various angles. The apparatus comprises a means for indicating the rotation angle of the transducer. A mark for indicating the angle is provided on a surface of the transducer. The rotation angle is detected electrically to be displayed on a CRT screen. For more precise detection, slack removers for removing slacks of rotation wires are provided. A rotation angle indicator for indicating the rotation angle of a rotation knob which represents the rotation angle of the transducer is provided on the operation portion.
摘要:
In a combustion experimental apparatus to obtain the positions of flames formed inside a tube (1), it is possible to adjust a temperature gradient in a longitudinal direction applied to the tube, by including a temperature-adjusting fluid supply device (2) to cause a temperature-adjusting fluid to flow along the tube.
摘要:
A fuel property determination method includes a reaction mechanism analysis process (S1) of analyzing elementary reactions that compose chemical reactions between a plurality of types of initial materials including the materials that compose the fuel and obtaining the elementary reactions as fuel elementary reactions, and an octane number determination process (S2) of calculating the combustion characteristics of the fuel by performing a simulation based on the fuel elementary reactions and determining the octane number based on the combustion characteristics of the fuel.
摘要:
To provide a water-based ballpoint pen with a good feel while writing, which hardly causes the proceeding of ball corrosion with time and can maintain an excellent lubrication performance at writing.A water-based ballpoint pen using a cemented carbide ball comprising tungsten carbide and a metal binder as a writing front end, wherein cobalt and/or nickel are contained in the cemented carbide ball as the metal binder in an amount of 1 to 20% by weight based on the total amount of the ball and which further includes an aqueous ink composition containing a colorant, water, a phosphate ester-based surfactant, and any one or more compounds of a thiadiazole represented by formula (1), 5-mercapto-3-phenyl-1,3,4-thiadiazole-2-thione or a salt thereof, and an oligomer of 2,5-dimercapto-1,3,4-thiadiazole: wherein X and Y each represents any substituent of CH3, NH2, and SM, and M represents any of hydrogen, an alkali metal, an ammonium, and an alkanolamine.
摘要:
A gamma correction device for a liquid crystal display device including LCD panels. The gamma correction device includes a storage device for storing gamma correction data corresponding to chiral directions of LCD panels. A chiral direction data acquisition circuit acquires chirality data on the chiral direction of a LCD panel arranged in the liquid crystal display device. A control circuit sets a gamma correction datum adapted to the chiral directions of the LCD panel arranged in the liquid crystal display device selectively from the stored gamma correction data based on the acquired chirality data. A gamma correction circuit performs a gamma correction process on image signals provided to the LCD panel using the set gamma correction datum.
摘要:
A shutter device can switch between a state where illuminating light from a lamp of an illuminating device is blocked (referred to as a closing state of the shutter device) and a state where illuminating light passes through (referred to as an opening state of the shutter device). A system control circuit instructs a panel cooling fan-use power source to decrease a fan rotation speed, when receiving information indicating that the shutter device is in the closing state from the detecting portion. After receiving this instruction, the panel fan power source decreases power supplied to the panel cooling fan (fan motor).
摘要:
A grinding wheel is for use in a grinding machine, and is attached on a wheel spindle of the grinding machine for simultaneously grinding at least two parts of a workpiece. The grinding wheel includes at least two wheel cores. Each of wheel cores has a disk-like shape. An abrasive layer is disposed on a circumferential surface of each of the wheel cores. A spacer portion is inseparably fixed on at least one of the wheel cores for keeping a space between the abrasive layers of the wheel cores. And a first labyrinth portion located on one of side surfaces of one of the wheel cores for forming a labyrinth seal with a second labyrinth portion arranged on the grinding machine. The number of separable parts of the grinding wheel are extremely decreased in consideration of imbalance of every part. The spacer portion is integral with at least one of the wheel cores. Since the grinding wheel is easily accurately balanced, vibration of the grinding wheel is decreased and stability is enhanced when the wheel spindle is driven at very high speed. As a result, machining accuracy for grinding is enhanced.
摘要:
A semiconductor memory device is provided which includes a substrate arrangement which is suitable for forming a large number of types of DRAMs having different package specifications, different bit structure and different operating modes. In conjunction with this, the bonding pads are arranged at optimum locations for accommodating the different package types. Various layout arrangements are also provided to minimize space and to improve access time. Additional features are provided, including improved output buffer circuitry, protection circuitry and testing methods to facilitate operation of the semiconductor memory device.
摘要:
A fuel injection timing control apparatus for a distributor type fuel injection pump which enables the advantages of a servo valve arrangement provided in a timing piston to be utilized with the servo valve being disposed on the timing piston high-pressure chamber side. The fuel injection apparatus can be applied to engines with parts on the timer low-pressure chamber side without this causing interference, because the servo valve and any control mechanism are provided on the high-pressure chamber side.