摘要:
A power converter apparatus for use in supplying power from a DC power source to a load, including a chopper connected to the DC power source; an inverter connected to a DC output of the chopper for supplying converted AC power to the load; an error amplifier for detecting an output voltage of the power converter apparatus and controlling the output voltage so as to maintain the output voltage equal to a predetermined reference value; and a voltage control circuit for generating a gate signal for the chopper, including an oscillator circuit for producing a variable frequency signal having a frequency varied in accordance with an output signal of the error amplifier, and a phase shifter for producing the gate signal with a pulse width varied in synchronism with the output signal of the oscillator circuit and for applying the pulse width varied gate signal to the chopper. In this way the chopper frequency is decreased to improve the operating efficiency during light-load operation.
摘要:
A cathode ray tube which comprises a front panel coated with a nonglare film having a multi-layered structure. The multi-layered structure comprises at least a visible light absorbing layer containing a black dye, and an antistatic layer containing an inorganic metal compound as a conductive agent.
摘要:
A cathode ray tube which comprises a front panel coated with a nonglare film having a multi-layered structure. The multi-layered structure comprises at least a visible light absorbing layer containing a black dye, and an antistatic layer containing an inorganic metal compound as a conductive agent.
摘要:
Provided is a cell analysis method in a cell analysis device D that uses an optical path length image of a cell colony formed of a large number of cells to analyze the cell colony, the method comprising: acquiring the optical path length image of the cell colony by an acquisition unit of the cell analysis device; extracting a circular shape corresponding to a cell nucleus of the cell in the acquired optical path length image by an extraction unit of the cell analysis device extracts; comparing an inner optical path length of the extracted circular shape and an outer optical path length of the extracted circular shape by a comparison unit of the cell analysis device extracts; and analyzing the cell colony based on the comparison result by analysis unit of the cell analysis device.
摘要:
A failure detecting gate circuit for bus signal lines. The gate circuit include gate elements connected to each bus line and controlled by control signal, and a processing unit which controls any one of the gate elements. The processing unit operates to switch the gate elements to an "ON" state when the control signals are supplied to the gate elements of each gate. The failure detecting circuit outputs an indication signal of a failure condition in the processing unit. This occurs when control signals are supplied, such that at least two gate elements are to be switched to the "ON" state simultaneously. The improvement of the present invention over previous devices is a multiplexer which outputs one of two signals indicating either a failure condition or a normal signal provided by the microcontroller.
摘要:
A steel having excellent formability, fatigue endurance after quenching, low temperature toughness, resistance for hydrogen embrittlement, and corrosion fatigue endurance. A method includes heating a steel slab at 1160° C. to 1320° C., hot-finish-rolling the steel slab at a finisher delivery temperature of 750° C. to 980° C., and then coiling the hot-rolled steel at a coiling temperature of 560° C. to 740° C. after slow cooling for a time of 2 seconds or more to produce a hot-rolled steel strip having a structure in which the ferrite grain diameter df corresponding to a circle is 1.1 μm to less than 1.2 μm and the ferrite volume fraction Vf is 30% to 98%, the steel slab containing 0.18 to 0.29% of C, 0.06 to 0.45% of Si, 0.91 to 1.85% of Mn, 0.019% or less of P, 0.0029% or less of S, 0.015 to 0.075% of sol. Al, 0.0049% or less of N, 0.0049% or less of O, 0.0001 to 0.0029% of B, 0.001 to 0.019% of Nb, 0.001 to 0.029% of Ti, 0.001 to 0.195% of Cr, and 0.001 to 0.195% of Mo so that the carbon equivalent Ceq satisfies a value of 0.4 to less than 0.58, and the total x of multiplying factors including that for B according to Grossmann satisfies a value of 1.2 to less than 1.7.
摘要:
A method of manufacturing the cathode ray tube comprises, cleaning the front panel, heating for drying the front panel, forming an visible light absorbing layer on the front panel by spraying a first ethyl silicate solution, forming the antistatic layer on the front panel by spraying a second ethyl solution, and baking the front panel to harden the nonglare film.
摘要:
Provided is a cell analysis method in a cell analysis device D that uses an optical path length image of a cell colony formed of a large number of cells to analyze the cell colony, the method comprising: acquiring the optical path length image of the cell colony by an acquisition unit of the cell analysis device; extracting a circular shape corresponding to a cell nucleus of the cell in the acquired optical path length image by an extraction unit of the cell analysis device extracts; comparing an inner optical path length of the extracted circular shape and an outer optical path length of the extracted circular shape by a comparison unit of the cell analysis device extracts; and analyzing the cell colony based on the comparison result by analysis unit of the cell analysis device.
摘要:
An ordinary bed mattress used in an ordinary situation by a person unable to take refuge by himself/herself such as a patient unable to walk or bedridden patient can be used as a component of a stretcher in a disaster situation, if the mattress is contained in the mattress cover of this invention, and the person lying on it can be carried to a safe place for evacuation.This invention proposes a mattress cover for disaster time transportation, comprising a mattress inserting portion for inserting a mattress into the cover, grip portions attached to the cover at the portions corresponding to the corners of the mattress as contained within the cover, and the ends on one side of multiple fastening belts to be fastened across in the transverse direction of the mattress as contained within the cover, being fixed to the cover at the portions corresponding to the longitudinal edges of the mattress as contained within the cover.
摘要:
The present invention provides an impact sensor which has neither electrical contacts exposed to an atmosphere nor any movable components, which is durable and highly reliable, and which is able to safely sense a vehicle impact even if loaded in a vehicle for a considerable period of time. The impact sensor comprises a piezoelectric element (3, 13) for generating a voltage of a magnitude in accordance with a pressure, a pair of electrodes (1c, 1d, 11c, 14) disposed to sandwich the piezoelectric element, an inertial mass (6,16) adapted to apply a pressure to either one of the electrodes, and a biasing member (7, 17) for biasing the inertial mass (6, 16) toward the piezoelectric element (3, 13). When the inertial mass (6, 16) is subject to an impact, the inertial mass (6, 16) is biased to apply to the piezoelectric element (3, 13) a pressure of a level in accordance with the magnitude of the impact. The piezoelectric element (3, 13) then provides a voltage of a magnitude in accordance with the pressure applied thereto.