摘要:
Test pattern data is recorded on a track of the optical disc, and the other pattern data is recorded on the neighboring track. A focus bias value providing the minimum jitter amount when the test pattern data is reproduced with varying the focus bias, is obtained. Just focusing condition is attained by the focus servo using the focus bias. When the test pattern data is reproduced, the data of these neighboring track is also reproduced simultaneously because the pattern data of the type different from the test pattern data is also recorded on the neighboring track. Particularly, under the defocusing condition, crosstalk amount becomes larger because the beam shape is distorted. With reference to jitter amount, such a mistake that the defocusing condition is erroneously determined as the just focusing condition can be eliminated. That is, the focus servo signal providing the accurate just focusing condition can be obtained.
摘要:
In a nuclear power plant, a corrosion-resistant oxide film on a surface of the metal component of a reactor structure is exposed to a high-temperature water, the corrosion-resistant oxide film containing an oxide having a property of a P-type semiconductor, and a catalytic substance having a property of an N-type semiconductor is deposited on the oxide film. The oxide film maintains the property of the P-type semiconductor.
摘要:
In a method of reducing corrosion of a material constituting a nuclear reactor structure, an electrochemical corrosion potential is controlled by injecting a solution or a suspension containing a substance generating an excitation current by an action of at least one of radiation, light, and heat existing in a nuclear reactor, or a metal or a metallic compound forming the substance generating the excitation current under the condition in the nuclear reactor to allow the substance generating the excitation current to adhere to the surface of the nuclear reactor structural material, and by injecting hydrogen in cooling water of the nuclear reactor while controlling the hydrogen concentration in a feed water.
摘要:
A fluorescent imaging device includes an irradiation section that irradiates an object to be examined with excitation light and reference light, an image pickup section that picks up a fluorescence image based on the excitation light and a reflected light image based on the reference light, a comparison section that compares relative intensity between the fluorescent image generated from the fluorescence image and the reflected light image generated from the reflected light image, and a selection section that selectively outputs one of the reflected light image and the fluorescent image based on the comparison result.
摘要:
An inter-image calculation portion includes a switch circuit made up of three switch portions for switching each of three image data (R, G, B) from a 3-board processing portion, a first divider, a second divider, a first adder, a second adder, a first LUT, a second LUT, a first clip portion, and a second clip portion. The inter-image calculation portion executes addition processing of two different fluorescent images with two different wavelength bands and division processing the two different fluorescent images with two different wavelength bands and then it executes addition processing which adds the addition results and the division results of the two different fluorescent images with two different wavelength bands or it executes subtraction processing which subtracts the addition results from the division results of the two different fluorescent images with two different wavelength bands.
摘要:
In a flow rate estimation method of a blood pump, a general flow rate estimation formula which includes a correction term is formed based on a plurality of blood pumps. Measured data obtained from an objective blood pump implanted inside a patient is substituted into the correction term, thus forming a flow rate estimation formula of the objective blood pump. The flow rate Q of the objective blood pump is estimated based on the flow rate estimation formula and the values of the rotational speed N and the consumption current I of the motor of the objective blood pump, and the attribute data Z of the blood of the patient.
摘要:
A flow rate estimation method of a blood pump of the present invention includes a first step which has a step in which a plurality of blood pumps are prepared, and a general flow rate estimation formula which includes a correction term is formed using the plurality of respective blood pumps and a step in which measured data obtained by using the objective blood pump implanted inside a body of a patient is substituted into a correction term, thus forming a flow rate estimation formula of the objective blood pump based on the general flow rate estimation formula, and a second step which estimates the flow rate Q of the blood pump based on the flow rate estimation information formula and the values of N, I and Z of the objective blood pump which are obtained by measuring the rotational speed N of the motor and the consumption current I of the motor of the objective blood pump which is implanted inside the body of the patient, and the attribute data Z of the blood of the patient. Due to the flow rate estimation method of a blood pump of the present invention, it is possible to effectively suppress the deterioration of the accuracy of the flow rate estimation result attributed to the individual difference of the property of the blood pump.
摘要:
An ink jet recording head and a process for producing the same, and an ink jet recording apparatus are provided that improve the printing performance and also improve the production efficiency. A conjugated body 73 formed by conjugating silicon wafers 50 and 58 is cut, whereby nozzles 22 are opened, and cutting into head chip units is carried out. At this time, deep grooves 84 are formed on the surface of the silicon wafer 58 by anisotropic etching, and they are penetrated by etching on the opposite side. Grooves 90 are formed on the silicon wafer 50 by using the thus penetrated deep grooves 84 as a mask.
摘要:
The present invention provides an artificial blood vessel system which can suppress the occurrence of the stagnation of a blood flow and, eventually, the occurrence of the thrombus, can enhance the reliability of the connection, and can prolong the lifetime of the artificial blood connecting structure. In the artificial blood vessel system which includes an artificial blood vessel, a tubular connecting member which is connected with the artificial blood vessel, and connecting assist means for strengthening the connection between the artificial blood vessel and the tubular connecting member, the connecting assist means is configured to be capable of bringing the artificial blood vessel into pressure contact with the tubular connecting member not only along the radial direction of the tubular connecting member but also at an artificial-blood-vessel-side distal end of the tubular connecting member.
摘要:
The blood pump of the present invention comprises: a first casing (1), its rim forming an opening; a second casing (2) having an inlet opening at the top and an outlet opening at an arbitrary position; a pump base part (5) attached to the first and second casings to partition them, its one side facing and covering the rim of the first casing, and the other side facing the base rim of the second casing; a drive part (7) housed inside the first casing driving a rotation shaft with a boss on the tip going roughly through the middle of the pump base part; a plurality of impellers (11) extending in radial direction from the outer periphery of the boss; and a pump part (3) constituted by the concurrence of the plurality of impellers and the second casing, wherein the impellers' boss attachment parts are shifted forward towards the inlet opening. wherein one part is cut out in each of the plurality of impellers' surfaces to form a window opening part (13). As a result, the blood pump of the present invention ensures smooth blood flow and therefore allows to effectively prevent the development of thrombi.