Abstract: A piezoelectric device includes a conductive adhesive, a container, and an AT-cut crystal element. The AT-cut crystal element has at least one side surface intersecting with a Z?-axis of the crystallographic axis of the crystal constituted of three surfaces. When a dimension of a straight-line portion along the Z?-axis of a second side opposed to the first side is expressed as W1 and a dimension along the Z?-axis of the AT-cut crystal element is expressed as W0, W1/W0 is 0.91 or greater, and the straight-line portion has both sides constituting corner portions in approximately right angles with sides along an X-axis of the crystal of the AT-cut crystal element. The side of the first side is at a ?X-side in an X-axis of the crystallographic axis of the crystal and a side of the second side is at a +X-side in the X-axis.

Abstract: A management system including at least one processor, wherein the processor is configured to acquire a captured image obtained by imaging an outer surface of each of plural sample containers which contains a sample and in which discrimination information for discriminating a subject from whom the sample is collected is given to the outer surface, and associate a test result related to the sample contained in each of the sample containers with a test order in which information of a discrimination image including the discrimination information is registered in advance for each subject, based on the captured image and the test order.

Abstract: A management system including at least one processor, wherein the processor is configured to acquire an image obtained by imaging a sample container containing a sample, recognize relevant information related to reliability of a test result related to the sample based on the image, and derive reliability information indicating the reliability of the test result related to the sample based on the recognized relevant information.

Abstract: A photoacoustic image evaluation apparatus includes a processor configured to acquire a first photoacoustic image generated at a first point in time and a second photoacoustic image generated at a second point in time before the first point in time, the first and second photoacoustic images being photoacoustic images generated by detecting photoacoustic waves generated inside a subject, who has been subjected to blood vessel regeneration treatment, by emission of light into the subject; acquire a blood vessel regeneration index, which indicates a state of a blood vessel by the regeneration treatment, based on a difference between a blood vessel included in the first photoacoustic image and a blood vessel included in the second photoacoustic image; and display the blood vessel regeneration index on a display.

Abstract: A piezoelectric device includes a conductive adhesive, a container, and an AT-cut crystal element. The AT-cut crystal element has at least one side surface intersecting with a Z?-axis of the crystallographic axis of the crystal constituted of three surfaces. When a dimension of a straight-line portion along the Z?-axis of a second side opposed to the first side is expressed as W1 and a dimension along the Z?-axis of the AT-cut crystal element is expressed as W0, W1/W0 is 0.91 or greater, and the straight-line portion has both sides constituting corner portions in approximately right angles with sides along an X-axis of the crystal of the AT-cut crystal element. The side of the first side is at a ?X-side in an X-axis of the crystallographic axis of the crystal and a side of the second side is at a +X-side in the X-axis.

Abstract: A surface acoustic wave device includes a quartz layer, a piezoelectric layer, and an Inter Digital Transducer. A rotation in a right-screw direction is assumed as a +-rotation. A three-dimensional coordinate system formed by an x1-axis, a y1-axis, and a z1-axis respectively matching an X-axis, a Y-axis, and a Z-axis as crystallographic axes of a quartz-crystal is rotated from +125.25° in a range of ±3° with the x1-axis as a rotation axis. Subsequently, the three-dimensional coordinate system is rotated from +45° in a range of ±2° with the z1-axis as the rotation axis. Subsequently, the three-dimensional coordinate system is rotated from ?45° in a range of ±2° with the x1-axis as the rotation axis. The quartz layer is cut along a surface as a sectional plane perpendicular to the z1-axis. The quartz layer has a propagation direction of the surface acoustic wave in a direction parallel to the x1-axis.

Abstract: Provided are a photoacoustic image generation apparatus, a photoacoustic image generation method, and a photoacoustic image generation program that can perform a more appropriate reconstruction process regardless of the type of probe, without causing a reduction in the speed of an arithmetic process. It is identified whether a probe that detects photoacoustic waves and outputs a photoacoustic wave detection signal is a probe in which detection elements are arranged by a coordinate system using polar coordinates or a probe in which detection elements are arranged by a rectangular coordinate system. In a case in which the probe is identified as the probe in which the detection elements are arranged by the coordinate system using the polar coordinates, a time domain reconstruction process is selected to generate a photoacoustic image.

Abstract: A Q switch is vibrated by applying a first voltage, and pulsed laser light is emitted by applying a second voltage to the Q switch at a point in time at which a preset delay time has passed from the start of emission of excitation light. Then, in this case, a time which is within a period, for which the vibration of the Q switch continues, and at which the intensity of the pulsed laser light periodically changing due to the vibration of the Q switch is maximized in a case where a point in time of application of the second voltage to the Q switch is changed is set as the delay time.

Abstract: In a laser device that emits pulsed laser light by emitting excitation light to a laser medium in a state in which a first voltage is applied to a Q switch and changing the voltage applied to the Q switch from a first voltage to a second voltage after the emission of the excitation light, the application start timing of the first voltage during a normal operation is set to a timing at which the intensity of the pulsed laser light periodically changing due to the vibration of the Q switch is maximized.

Abstract: A surface acoustic wave device includes a quartz layer, an amorphous silicon oxide layer, a piezoelectric layer, and an Inter Digital Transducer. The amorphous silicon oxide layer is laminated on the quartz layer. The piezoelectric layer is laminated on the amorphous silicon oxide layer. The Inter Digital Transducer is formed on the piezoelectric layer. The Inter Digital Transducer excites a surface acoustic wave on the piezoelectric layer. Assuming that the surface acoustic wave has a wavelength ?, 0.1?a thickness of the amorphous silicon oxide layer/??1, and 0.08<a thickness of the piezoelectric layer/??1.

Abstract: There is provided a photoacoustic measurement apparatus including a laser light source unit that has a flash lamp for emitting excitation light and a laser rod for emitting laser light in response to incidence of the excitation light, an excitation light source power supply unit that has a capacitor bank for supplying a voltage to the flash lamp, an IGBT for controlling an output of the voltage charged in the capacitor bank to the flash lamp, a discharge control circuit for generating a driving pulse for driving the IGBT, and a pulse width limiting circuit for limiting a pulse width of the driving pulse output from the discharge control circuit, the pulse width limiting circuit being formed of a passive element, and a photoacoustic wave detection unit that detects photoacoustic waves generated inside a subject by emission of light emitted from the laser light source unit to the subject.

Abstract: A management system including at least one processor, wherein the processor is configured to acquire a captured image obtained by imaging an outer surface of each of plural sample containers which contains a sample and in which discrimination information for discriminating a subject from whom the sample is collected is given to the outer surface, and associate a test result related to the sample contained in each of the sample containers with a test order in which information of a discrimination image including the discrimination information is registered in advance for each subject, based on the captured image and the test order.

Abstract: A management system including at least one processor, wherein the processor is configured to acquire an image obtained by imaging a sample container containing a sample, recognize relevant information related to reliability of a test result related to the sample based on the image, and derive reliability information indicating the reliability of the test result related to the sample based on the recognized relevant information.

Abstract: To obtain an absorption distribution from a detected signal with a practical device. Light is applied to a subject, and a photoacoustic signal generated in the subjectA photoacoustic is detected. From the detected photoacoustic signal, a light differential waveform, which is a differential waveform of a temporal waveform of the light applied to the subject, is deconvolved. As a result of this deconvolution, an absorption distribution is obtained.

Abstract: A management system includes a label imaging unit that images labels of a plurality of sample containers, a label recognition unit that recognizes a subject by using label images, a test order acquisition unit that acquires a test order of the subject, an automatic association unit that automatically associates a test result related to the sample of each sample container with the test order acquired by the test order acquisition unit by using a recognition result of the label recognition unit, and a display unit that displays the test result and the test order in association with each other.

Abstract: A photoacoustic imaging method is provided that can prevent the surface of the subject from appearing in an image when a part to be observed at a position deeper than the surface of the subject is imaged. The photoacoustic imaging device includes a unit for outputting pulsed light toward the subject, and generating photoacoustic data by detecting photoacoustic waves emitted from the subject exposed to the light. The photoacoustic imaging device also includes a region detection unit that detects a near-surface region of the subject based on the photoacoustic wave detection signals, and a correcting unit that attenuates (which encompasses removing) information of the near-surface region found by the region detection unit when the part to be observed is displayed.

Abstract: There is provided a photoacoustic measurement apparatus capable of appropriately detecting a single failure state even in the single failure state so that it is possible to prevent an operation in the single failure state from continuing. There are included: a laser light source having a flash lamp and a laser medium; an excitation light source power supply having a capacitor for supplying a charge voltage to the flash lamp, a charging circuit for charging the capacitor, a first voltage dividing circuit and a second voltage dividing circuit for dividing a voltage charged in the capacitor, and a failure detection circuit that detects a failure by comparing voltages obtained by voltage division of the first voltage dividing circuit and the second voltage dividing circuit; and an ultrasound probe that detects photoacoustic waves generated inside a subject by emission of light emitted from the laser light source to the subject.

Abstract: The present invention provides a control device that includes a first temperature detection unit that detects a partition wall temperature of a tank main body in which liquefied gas is contained, and a second temperature detection unit that detects a temperature of a skirt that supports the tank main body. The control device further includes a temperature difference acquisition unit that acquires a temperature difference between the partition wall temperature detected by the first temperature detection unit and the temperature of the skirt which is detected by the second temperature detection unit, and a determination unit that determines whether or not a joint between the tank main body and the skirt is rapidly cooled by the liquefied gas on the basis of the partition wall temperature and the temperature difference.

Abstract: A piezoelectric vibrating piece includes a piezoelectric substrate and excitation electrodes. The excitation electrode includes a main thickness portion and an inclined portion, the main thickness portion has a constant thickness, the inclined portion is formed on a peripheral area of the main thickness portion, the inclined portion gradually decrease in thickness from a part contacting the main thickness portion toward an outermost periphery of the excitation electrode. The inclined portion has a width as an inclination width in a length of 0.84 times or more and 1.37 times or less of a first flexural wavelength and 2.29 times or more and 3.71 times or less of a second flexural wavelength, the first flexural wavelength is a wavelength of a flexure vibration at a fundamental wave of the thickness-shear vibration, the second flexural wavelength is a wavelength of a flexure vibration at a third harmonic of the thickness-shear vibration.

Abstract: A crystal unit includes an AT-cut crystal element that has a planar shape in a rectangular shape and a part as a thick portion. The crystal element includes a first end portion, a depressed portion, the thick portion, and a second end portion in this order from a side of one short side in viewing a cross section taken along a longitudinal direction near a center of the short side. The depressed portion is a depressed portion disposed from the thick portion toward the first end portion side, depressed with a predetermined angle ?a and subsequently bulged, and connected to the first end portion.