摘要:
In a single mode optical fiber formed of a silica-based glass and including a glass part having a central core and a cladding region, the density of non bridging oxygen hole center in the glass part is not higher than 1.0×1014 spins/g in terms of the spin density measured by an electron spin resonance method.
摘要:
A PET gantry and a CT gantry are placed in parallel such that the CT gantry becomes remoter to a common examination couch having a movable couch table top board mounted with a subject person and the CT gantry is made to be movable. The gantries are controlled by a control portion in a console. At first, the CT gantry is moved in a left direction to separate from the PET gantry so that whole body CT scan is carried out for the subject person in a direction from the leg portion to the head portion. Successively, the subject person is passed through a tunnel portion from the leg portion to the head portion by moving the couch table top board in a right direction in a state of considerably separating the CT gantry from the PET gantry to thereby carry out whole body PET scan.
摘要:
An X-ray CT apparatus for reconstructing images based on transmitted X-ray detection data acquired by emitting a conical X-ray beam from around an object and outputted from a flat panel X-ray sensor. In advance of CT imaging, a reconstruct area for CT imaging is displayed on a display monitor as superimposed on a fluoroscopic image acquired by irradiating the object with X rays emitted from a selected direction around the object. The operator can determine, before executing the CT imaging, whether a site of interest to be imaged is within the reconstruct area, thereby reliably acquiring CT images of desired sections.
摘要:
A 4-pyrazolyl phosphorous acid ester of the following formula, ##STR1## (R is a lower alkyl group; Y is a phenyl group which may optionally be substituted by a halogen, halogens, a lower alkyl group or a halogen and a lower alkyl group.) which is produced by reacting corresponding 4-hydroxylpyrazole compound with a trialkyl phosphite. The ester gives 4-pyrazolyl phosphorothioate by the reaction with an alkylsulfenyl halide.
摘要:
An optical biological measuring device includes a light transmission/reception element 30 having a plurality of light transmission probes 12, light reception probes 13 and reference probes 14; a second observation signal acquiring element 25 for acquiring a second observation signal indicating a time-course variation relating to a cerebral activity; a first observation signal acquiring element 24 for acquiring a first observation signal indicating a time-course variation relating to the blood flow in the skin; and an analysis control element 40 for generating a removal target component removal observation signal based on the first and second observation signals.
摘要:
An optical measuring system comprises a control device and an optical meter. The optical meter comprises a first case, a first controller for controlling light emitters for irradiating a patient with light and light receivers for receiving light from the patient to obtain measurement data regarding a cerebral activity, and a first transmitter and receiver for transmitting the measurement data to the control device. The control device comprises a second case removably attached to the first case, a display and input device on a surface of the second case, a second transmitter and receiver for receiving the measurement data from the optical meter, and a second controller for controlling the display and input device to display the measurement data from the optical meter. The second case can be attached on a top face of the first case when the first case is placed on a table.
摘要:
This holder set is provided with: an optical bioinstrumentation holder which has at least two probe mounting units into which are inserted light-transmitting probes which irradiate light from the tip, or light-receiving probes which receive light from the tip, and which is mounted on the subject's head; and a electroencephalograph holder which has at least one electrode mounting unit into which an EEG electrode is inserted which detects the potential difference with a reference electrode. This optical bioinstrumentation holder is provided with a linear trunk unit extending in a first direction, and at least two linear branches extending in a second direction different from the first direction, and the electroencephalograph holder is provided with a linear trunk unit extending in a first direction, and at least one linear branch extending in the direction opposite to said second direction.
摘要:
A cutting insert according to an embodiment of the present invention includes an upper surface, a side surface, and a first cutting edge located at an intersection of the upper surface and the side surface. The upper surface includes a pair of raised parts located opposite to each other with a perpendicular bisector of the first cutting edge interposed therebetween. A top of each of the pair of raised parts includes at least two protrusions oriented toward a direction along the perpendicular bisector in a top view. Each of the at least two protrusions includes a first protrusion located on a side closest to the perpendicular bisector, and a second protrusion which is located on a side further away from the perpendicular bisector than the first protrusion, and is located at a higher position than the first protrusion. A cutting tool including the cutting insert, and a method of manufacturing a machined product by using the cutting tool are also provided.
摘要:
Provided is a holder which comprises at least two probe mount portions into which a light-transmitting probe for emitting light from the tip thereof or a light-receiving probe for receiving light through the tip thereof is inserted from above and is to be put on the head of a subject, the holder being characterized by further comprising: a linear backbone portion that extends in a first direction that is perpendicular to the above-described direction from above; and at least two linear branch portions that extend in a second direction that is perpendicular to the above-described direction from above and is different from the first direction, wherein the lower end portions of the probe mount portions protrude from the lower surface of the backbone portion or a branch portion and are tapered.
摘要:
Provided is a medical image diagnosis apparatus which requires a small area for installation, has a short length in an axial direction of the apparatus, can reduce a problem of the strength of a top plate, and can simultaneously carry out dynamic PET-imaging of the entire body. A top plate (61) on which an examinee lies is moved through a tunnel of a CT gantry (2) and a PET gantry (3) to execute CT imaging and PET imaging. A PET unit consisting of a plurality (e.g. seven) of PET units (32) has a length of 2 m in the axis direction, the visual field thereof covers the whole body and the whole body can be simultaneously subjected to dynamic PET-imaging. For the maintenance of the PET gantry (3), the diagnosis apparatus is separated at an arbitrary PET unit (32) to be maintained, the apparatus slides on a rail (31) in the axis direction and is separated for maintenance operation. Accordingly, a large space for maintenance is not required and the area for installation is small.