摘要:
A first step of measuring a change over time in the spectral transmission spectrum of a measurement sample by its exposure to the light of a light source including an ultraviolet radiation for a preset light exposure time, a second step of performing a correction according to the change over time in the spectral transmission spectrum of the measurement sample based on the result of the measurement obtained by the first step, and a third step of calculating the final in vitro predicted SPF of the measurement sample using the result of the correction obtained by the second step are included.
摘要:
A method of extracting residual pesticides from livestock meat fat and a kit to be used therefor. Namely, a method of extracting residual pesticides comprising; (1) a step of homogenizing livestock meat fat, which is a solidified state, in the presence of water and then separating the fat, (2) a step of treating the thus treated fat with a dehydrating agent, and (3) a step of dissolving the dehydrated fat in a solvent in which fat is soluble, re-dissolving the pesticides in a hydrophilic solvent and then concentrating the solution of the hydrophilic solvent to give a liquid sample for measuring the residual pesticides. A kit to be used in the above-described method. Use of the above method and kit makes it possible to simplify the procedure while achieving an effect of reducing the amount of impurities (an organic acid, etc) extracted.
摘要:
A magnetic head for supplying a magnetic field in recording an. information signal to a recording medium is provided. This magnetic head has a substantially. prism-shaped magnetic core portion having a distal end portion cut out to form a step, the magnetic core portion being form so that the cross-sectional area of the distal end portion is smaller than the cross-sectional area of a proximal end portion, and a coil wound on the outer circumferential surface of the magnetic core portion, wherein the length of one side of the distal end portion is not less than 0.3 mm and not more than 0.45 mm, and the length of the other side orthogonal to the one side is not less than 0.4 mm and not more than 0.55 mm.
摘要:
A magnetic head driving circuit for driving a magnetic head device adapted for recording information signals on a magneto-optical disc by applying a magnetic field to the magneto-optical disc is disclosed. The magnetic head driving circuit includes a pair of switching elements for performing a push-pull operation in accordance with input recording signals, a pair of rectifiers connected in series with each other between the switching elements, a magnetic field generating coil having one terminal connected to a junction line between the rectifying elements via a coupling capacitance and having its other terminal grounded. The magnetic field generating coil generates a magnetic field by being supplied with a driving current corresponding to the recording signals. An amplifier capacitor is connected in parallel with the magnetic field generating coil in an ac path for amplifying the driving current supplied to the magnetic field generating coil. With the above-described magnetic head driving circuit, the driving current supplied to the magnetic head generating coil may be amplified to increase the strength of the magnetic field generated by the magnetic field generating coil. A magnetic head device is also disclosed which includes a substrate provided integrally with a magnetic core about which the magnetic field generating coil is wound and with the above-mentioned driving circuit for simplifying the structure and reducing the size of the head device.
摘要:
A gas turbine combustor comprising a head combustion chamber and a rear combustion chamber connected to a downstream side of the head combustion chamber, a first stage burner for premixing first stage fuel and air and supplying the resultant fuel and air premixture into the head combustion chamber to effect first stage premix combution, a second stage burner for premixing second stage fuel and air and the resultant fuel and air premixture into the rear combustion chamber to effect premix combustion in addition to the first stage premix combustion, and a device for regulating flow rates of combustion air to be premixed with first and second stage fuel. The combustor is further provided with a pilot burner in the head combustion chamber to form pilot flame and stabilize the first stage premix combustion.
摘要:
A two-color copying machine records an image on a recording sheet in two colors such as red and black by using thermally transferable red and black inks on ink donor sheets. The two-color copying machine includes a platen for supporting an original to be copied, a scanner unit movable reciprocally with respect to the platen for reading the original and for generating an image signal for each line which is separated into two single color image signals, each corresponding to one of the two colors, a pair of thermal heads each for selectively generating thermal pulses in response to the image signal from the scanner unit, an ink donor sheet supply assembly for supplying the thermal heads with respective ink donor sheets coated with thermally transferable inks of different colors, respectively, which can be fluidized or sublimated upon being heated, a recording sheet supply assembly for supplying a recording sheet in the vicinity of the thermal heads, a recording sheet contacting assembly for bringing the supplied recording sheet into intimate contact with a heating region of each of the thermal heads with the ink donor sheet interposed between a thermal head and an ink donor sheet, a recording sheet peeling assembly for peeling the recording sheet off the ink donor sheets after the image has been recorded on the recording sheet, and a discharge assembly for discharging the peeled recording sheet.
摘要:
A fuel supply method for a gas turbine combustor having first and second stage combustion chambers. The method comprises supplying the fuel from only first stage fuel supply from the start of the gas turbine until its low output range so as to operate only the first stage combustion chamber, supplying the fuel from both first and second stage fuel supply in a high output range of the gas turbine including its maximum output so as to operate both first and second stage combustion chambers. The method makes it possible to reduce NO.sub.x without deteriorating the combustion performance by step-wise supplying a predetermined flow rate of the fuel when the second stage fuel is to be supplied and at the same time, step-wise reducing the same quantity of the fuel that is being supplied from the first stage fuel supply.
摘要:
A premixing swirling burner including a burner body having a swirling member at one end for causing fuel introduced into the burner body to flow in vortical form through the swirling member, a burner outer frame mounting the burner body and communicated with an air line for introducing air into the burner body, and a cylindrical member located in the burner outer frame for enclosing the burner body, with an air passage being defined between the inner periphery of the cylindrical member and an outer periphery of a portion of the burner body. A premixing chamber is defined between an outer periphery of a central portion of the burner body and an inner periphery of the cylindrical member for providing a fuel-air premix flowing toward the swirling member. A fuel chamber introduces fuel into the interior of the burner body, and a fuel ejection nozzle is located along an outer surface of the central portion of the burner body. A channel defined between the inner periphery of an end portion of the cylindrical member and an outer peripheral portion of the burner body formed an inlet for the premixing chamber has a cross-sectional area smaller than a cross-sectional area of the air passage.
摘要:
A thermal head for use in thermal printing is operated according to a method in which the data of one line are recorded divisionally, with recording operations for the first and second halves of a line being carried out alternatingly and repeatedly.
摘要:
In a heat transfer recording apparatus, the recording medium and ink donor film are drawn from separate sources and joined together only for the recording operation.