摘要:
A mental-concentration measuring method for measuring the degree of mental concentration of a subject by extracting a power spectrum with respect to a brain wave from detected brain-wave biological signals, obtaining an integrated value of the power spectrum and an integrated value of a rhythm spectrum representing mental concentration power, and measuring the mental concentration of the subject based on the ratio of these integrated values, and mental-concentration measuring apparatus as apparatus for realizing the above method comprising a brain-wave extracting device for extracting a power spectrum of a brain wave, a brain-wave spectrum integrating device for integrating the brain-wave power spectrum extracted by the brain-wave extracting device, an .alpha.-rhythm spectrum integrating device for integrating an .alpha.-rhythm spectrum representing mental concentration power, and a mental-concentration calculating device for calculating the ratio of the integrated value obtained with the .alpha.-rhythm spectrum integrating device and the integrated value obtained with the brain-wave spectrum integrating device.
摘要:
A designated burst signal specified in a designated frequency is detected from an all-inclusive signal specified in a plurality of frequencies, by multiplying a frequency of the all-inclusive signal by a multiplying factor so as to produce a multiplied output signal, performing a phase-lock loop operation between the multiplied output signal and an oscillated signal produced for performing the phase-lock loop operation and specified in a multiplied frequency of the designated frequency by the multiplying factor, so as to produce a phase-lock output signal and comparing the multiplied output signal and the phase-lock output signal for producing a detected output signal representing whether the designated burst signal is in the all-inclusive signal.
摘要:
Steering arrangements for motorcycles herein the rear wheel is supported for steering movement and is mechanically coupled to the mechanism for steering the front wheel so that both wheels will be steered in unison. An arrangement is provided to adjust the steering ratio between the front and rear wheels in response either to vehicle load or an engine running condition.
摘要:
To provide a power supply noise reduction circuit and a power supply noise reduction method that do not require circuit elements to be increased in size and do not cause voltage drop in a power supply voltage. A power supply noise reduction circuit 10 that reduces noise included in a constant voltage output that is output from a power supply 2 to a load includes a first resistor 20 that is inserted into a power supply line L1 extending from the power supply 2 to the load, a filter 31 that is coupled to a load terminal of the first resistor 20 and outputs a first voltage that is obtained by reducing the noise from the constant voltage output, and a unity gain amplifier 32 that drives the first voltage output from the filter 31 and outputs the driven first voltage to the load terminal of the first resistor 20.
摘要:
To provide a micropore forming apparatus capable of increasing the amount of interstitial fluid extracted from micropores formed in the skin of a subject. The micropore forming apparatus includes a skin contact part that has a plurality of microneedles for piercing the skin of the subject, and a force exerting part for exerting a force on the skin contact part toward the skin of the subject. The force exerting part is configured so as to exert a force on the microneedles toward the skin at a position at which the microneedles of the skin contact part are to pierce the skin of the subject.
摘要:
A valve train of an internal combustion engine having a swing of a link mechanism that is stabilized to stabilize the operating characteristics of an engine valve. A camshaft is provided together with a valve operating cam pivotally supported by the camshaft so as to operatively open and close an engine valve. A link mechanism allows a drive cam rotated integrally with the camshaft to swing the valve operating cam, and a drive mechanism swings the link mechanism, wherein opening and closing of the engine valve are started in a buffer section of the valve operating cam, and opening/closing timing of the engine valve is controlled by the drive mechanism swinging the valve operating cam via the link mechanism, without the provision of a buffer transition section and a buffer constant-speed section encountered at the time of transiting from a base circle to a cam lobe of the drive cam.
摘要:
Although Cl (chlorine) is no longer supplied in the course of a first process in which a detecting layer formed by a polycrystalline film or a polycrystalline lamination film by vapor deposition or sublimation is formed, an additional source (e.g., HCl of Cl-containing gas) other than a source is supplied at the start or in the course of the first process. Thus, the detecting layer as the polycrystalline film or the polycrystalline lamination film of CdTe, ZnTe, or CdZnTe can be doped with Cl uniformly in a thickness direction from the start until the end of the first process in film formation. As a result, uniform crystal particles and uniform detection characteristics can be achieved.
摘要:
A valve train for an internal combustion engine includes a camshaft, a valve-operating cam for operating an engine valve, and a link mechanism for swinging the valve-operating cam. The valve train also includes a holder member operable to turn around the camshaft, and a drive mechanism operable to turn the holder member for varying positions of the link mechanism. The drive mechanism includes a ball screw provided perpendicularly to the camshaft, a slider threadably engaged with the ball screw, an arm member swingably attached to the slider, and a connecting bolt having one end secured to an arm-connecting portion of the arm member, and the other end secured to the holder member. In such movable valve train for an internal combustion engine, the holder member and the drive mechanism are connected to each other with a small and lightweight configuration, requiring a minimal number of parts.
摘要:
A liquid epoxy resin composition for semiconductor encapsulation comprising: (A) an epoxy resin, (B) an imidazole compound, and (C) a maleimide compound, a semiconductor device encapsulated by the liquid epoxy resin composition, and an assembly in which a cured material of the liquid epoxy resin is positioned between a printed circuit substrate and a semiconductor die.The liquid epoxy resin composition provides a cured material that has an excellent adhesiveness to a semiconductor chip surface and has an excellent moisture resistance.
摘要:
Provided is a power unit for a vehicle including an engine main body of an engine having: a valve system capable of changing operational modes of each engine valve; valve controlling apparatuses for controlling operations of the valve system; and a crankcase housing a transmission, the engine main body being mounted on a vehicle frame. The power unit for a vehicle achieves reduction in size of the engine main body in a direction along the axis of a cylinder, and increases the freedom of arranging parts designed to be placed on an upper end portion of the engine main body. The valve controlling apparatuses are attached to the top surface of the crankcase.