Abstract: There are provided transmission means (1) for transmitting an ultrasonic signal from a surface of a skin of a subject toward a blood vessel (21) of the subject, reception means (3) for receiving a reflected ultrasonic echo and converting the ultrasonic echo into an electric signal to obtain the ultrasonic echo signal in a depth direction from the surface of the skin, movement detection means (5) for analyzing a phase of the ultrasonic echo signal in a direction traversing the blood vessel to calculate a movement amount in each of a plurality of regions including a blood vessel wall and a vicinity of the blood vessel wall, analysis means (7) for analyzing a state of the blood vessel based on a variation in the calculated movement amount in each of the regions, boundary position detection means (8) for detecting a boundary position between the blood vessel wall and a blood flow region of the blood vessel based on a result of the analysis by the analysis means, and stability judgment means (15) for comparing the

Abstract: In an exhaust gas purification system (1) for conducting control of raising temperature of a DPF (12b) by supplying an unburned fuel to an upstream side of an oxidation catalyst to oxidize it, a minimum value (Qumin) of a first upper limit value (Qu1) acquired by subtracting a fuel injection amount (Qe) for in-cylinder combustion from a first combustible fuel amount (Qa1) limited by an air/fuel ratio, a second upper limit value (Qu2) acquired by subtracting the fuel injection amount (Qe) for in-cylinder combustion from a second combustible fuel amount (Qa2) limited by an atmospheric pressure, and a third upper limit value (Qu3), which is a third combustible fuel amount (Qa3) which can be oxidized by the oxidation catalyst limited by a catalyst temperature index temperature (Tg1, Tg2) and an engine speed (Ne) is set as an upper limit value (Qu) for the unburned fuel supply amount (Qp).

Abstract: In forced regeneration control of an exhaust gas purification device 12, data for control such as the number of meshes of a data map and the number of data maps for forced regeneration control is reduced and occurrence of torque shock is avoided by smoothly changing a fuel pressure. In the forced regeneration control of the exhaust gas purification device 12, when an operation state of an internal combustion engine 10 is a high-load operation state, normal injection control by stopping multi injection is carried out and according to a rotation speed Ne and a load Q of the internal combustion engine 10, a region for control is divided into a multi-injection control region Rm, a transition region Rt, and a normal injection control region Rn, and in the transition region Rt, data Pt for fuel pressure control obtained by interpolation of data Pml for fuel pressure control on the multi-injection control region Rm side and data Pnl for fuel pressure control on the normal injection control region Rn side is used.

Abstract: A fuel injection control device that prevents a misfire is provided. The fuel injection control device comprises: target injection amount determination means 3 for determining a target injection amount of each fuel injection, so that the amount of fuel to be supplied to a cylinder in one combustion cycle is supplied in a plurality of fuel injections; and fuel injection correction amount determination means 4 for determining a fuel correction amount of one combustion cycle, wherein the fuel injection correction amount determination means 4 distributes the correction amount among each fuel injection in accordance with the ratio of a target injection amount of each fuel injection in the cylinder.

Abstract: In an exhaust gas purification system (1) comprising an exhaust gas purification device (12) having an oxidation catalyst device (12a) carrying an oxidation catalyst and a DPF (12b) arranged in order from an upstream side or a DPF carrying an oxidation catalyst in an exhaust passage (11) of an internal combustion engine (10), in which at regeneration of the DPF (12b), when a catalyst temperature index temperature (Tg2) indicating a temperature of the oxidation catalyst becomes equal to a predetermined determining temperature (Tc1) or above, control of raising a temperature of the DPF (12b) is conducted by supplying an unburned fuel to the upstream side of the oxidation catalyst to thereby oxidize the unburned fuel by the oxidation catalyst, wherein the predetermined determining temperature (Tc1) is changed according to an engine speed Ne of the internal combustion engine (10).

Abstract: In regeneration control, when the catalyst temperature index temperature (Tg2) using the temperature of the oxidation catalyst (12a) as an index is below a predetermined first determination temperature (Tc1), the engine speed of idling is brought to a predetermined first target engine speed (Nei1) which is higher than the engine speed of idling (Nei0) in the ordinary operation, and, further, multi-injection is carried out. On the other hand, when the catalyst temperature index temperature (Tg2) is the predetermined first determination temperature (Tc1) or above, the engine speed of idling is brought to a predetermined second target engine speed (Nei2), which is lower than the predetermined first target engine speed (Nei1) and is higher than the engine speed of idling (Nei0) in ordinary operation, and, further, post injection is carried out, followed by raising of the temperature of an exhaust gas flown into a DPF apparatus (12b) to a predetermined second determination temperature (Tc2).

Abstract: At regeneration control while a vehicle mounting an internal combustion engine (10) is parked, both an exhaust throttle valve (13) and an exhaust brake valve (18) are used and if a catalyst temperature index temperature (Tg2) is lower than a predetermined first determining temperature (Tc1), first exhaust gas temperature rise control is conducted that the exhaust brake valve (18) is set to a fully closed side and multiple injection is carried out in in-cylinder fuel injection control, while if a catalyst temperature index temperature (Tg2) is equal to the predetermined first determining temperature (Tc1) or above, second exhaust gas temperature rise control is conducted that the exhaust brake valve (18) is set to an open side, the exhaust throttle valve (13) is set to the fully closed side, and post injection is carried out in the in-cylinder fuel injection control.

Abstract: A tomographic image and a tissue characteristic image that are in conformity with each other in terms of time-phase and positional relationships can be displayed superimposedly, thereby providing an excellent ultrasonic diagnostic apparatus that enables an easy and detailed observation of a relationship between a structure and a characteristic of a subject tissue. During an operation of ultrasonic wave transmission/reception (in a live mode), a control part (100) allows a tomographic image to be renewed continuously, displayed on a monitor (107), and stored in a tomographic image memory (110), while allowing an elastic modulus image as a tissue characteristic image to be renewed per heartbeat, displayed on the monitor, and stored in an elastic-modulus-image memory (111) as a tissue characteristic image memory.

Abstract: A subject-side apparatus 10A is provided with a cine memory 15 for sequentially storing an ultrasonic signal that is received by an ultrasonic wave transmission/reception portion 12 per each frame. Every time after freezing when moving a pointer for designating a frame to be reproduced in a hospital-side apparatus 20A, a communication line interface 14 of the subject-side apparatus reproduces a frame that is required to be retransmitted by a console 24 of the hospital-side apparatus from the cine memory, and retransmits it to a communication line interface 21 of the hospital-side apparatus via a communication line 30. Then, an ultrasonic image of the retransmitted frame is displayed on a monitor 23. When an examiner performs a diagnosis with respect to a subject in a remote location via the communication line, an ultrasonic image can be displayed with sufficiently suppressed degradation of an image quality compared with an image quality of an original image, even at a low data rate of the communication line.

Abstract: There are provided transmission means (1) for transmitting an ultrasonic signal from a surface of a skin of a subject toward a blood vessel (21) of the subject, reception means (3) for receiving a reflected ultrasonic echo and converting the ultrasonic echo into an electric signal to obtain the ultrasonic echo signal in a depth direction from the surface of the skin, movement detection means (5) for analyzing a phase of the ultrasonic echo signal in a direction traversing the blood vessel to calculate a movement amount in each of a plurality of regions including a blood vessel wall and a vicinity of the blood vessel wall, analysis means (7) for analyzing a state of the blood vessel based on a variation in the calculated movement amount in each of the regions, boundary position detection means (8) for detecting a boundary position between the blood vessel wall and a blood flow region of the blood vessel based on a result of the analysis by the analysis means, and stability judgment means (15) for comparing the

Abstract: An ultrasonic diagnostic apparatus according to the present invention includes: a transmitting section, which drives a probe that transmits an ultrasonic wave toward a subject; a receiving section, which receives an ultrasonic echo, produced by getting the ultrasonic wave reflected by the subject, through the probe, thereby generating a received signal; a property value calculating section for calculating property values of the subject based on the received signal over a period of time; a stability estimating section for sequentially estimating the degrees of stability of the property values that have been calculated over the period of time; and a presenting section for presenting the degrees of stability thereon.

Abstract: An ultrasonic detecting portion 1 that transmits an ultrasonic wave to a subject and receives a reflected wave therefrom, an image display portion 6 that has a diagnostic image display region 8 for displaying a diagnostic image based on an image signal from the ultrasonic detecting portion and displays a setting button 9 and a cursor 7 of a pointing device for making a selection of a setting condition, and a control portion 5 that has a function of setting and changing the setting condition based on an instruction to select the setting condition are provided. A function in which a pop-up menu opens by locating the cursor on the operation button, and a function in which an alternative in the pop-up menu is selected by locating the cursor on the alternative and the alternative that is selected last is confirmed by moving the cursor to a region outside the pop-up menu are provided. It is possible to select a parameter of the operation button solely with a cursor operation of the pointing device.

Abstract: An ultrasonic diagnostic apparatus includes a transmission unit that transmits at least one ultrasonic pulse from a surface of a skin of a subject toward a blood vessel (21) thereof, a reception unit (3) that receives an ultrasonic echo reflected by the blood vessel and converts the same into an electric signal to obtain a signal of the ultrasonic echo along a depth direction from the surface of the skin, a movement detection unit (5) that analyzes a phase of the ultrasonic echo signal in a direction traversing the blood vessel so as to calculate a movement amount in each of a plurality of parts included in a blood vessel wall constituting the blood vessel and a vicinity of the blood vessel wall, and a boundary detection unit (7) that detects a boundary position between the blood vessel wall and a blood flow region (22) in a lumen of the blood vessel through which blood flows based on a variation in the calculated movement amount in each part.

Abstract: There are provided a transmission unit (102) and a reception unit (103) for transmitting and receiving an ultrasonic wave with respect to a subject, a tissue tracing unit (115) for analyzing a received signal to trace the movement of a tissue of the subject, and a property detection unit (120) for detecting a property concerning the movement of the tissue of the subject. The property detection unit (120) subjects either one of the received signal, a Doppler shift, and the movement of the tissue of the subject to signal processing, detects a property concerning the movement of the tissue of the subject that is in synchronization with a heartbeat, and generates an initializing pulse based on the detected property. The tissue tracing unit (115) is initialized by the initializing pulse.

Abstract: There is provided an excellent biological signal monitor device that allows a living tissue moving in accordance with a body motion or a vibration to be observed as if it were standing still. A reverse correction processing unit (114) subjects a B-mode image to reverse correction based on a movement amount of the living tissue detected by a movement amount detection unit (113), and outputs the B-mode image corresponding to the living tissue moving in accordance with a body motion as quasi-still image information. An arithmetic processing unit (115) subjects the quasi-still image information from the reverse correction processing unit (114) to arithmetic processing such as averaging and filter processing, so as to remove a random noise component. As a result, it is possible to display, for example, a contour portion of a blood vessel wall as the living tissue clearly.

Abstract: A tomographic image and a tissue characteristic image that are in conformity with each other in terms of time-phase and positional relationships can be displayed superimposedly, thereby providing an excellent ultrasonic diagnostic apparatus that enables an easy and detailed observation of a relationship between a structure and a characteristic of a subject tissue. During an operation of ultrasonic wave transmission/reception (in a live mode), a control part (100) allows a tomographic image to be renewed continuously, displayed on a monitor (107), and stored in a tomographic image memory (110), while allowing an elastic modulus image as a tissue characteristic image to be renewed per heartbeat, displayed on the monitor, and stored in an elastic-modulus-image memory (111) as a tissue characteristic image memory.

Abstract: This invention aims to provide a process for producing an oxide-dispersion strengthened platinum material which allows zirconium oxide to be more finely dispersed in a platinum material, and to further improve creep strength in an oxide-dispersion strengthened platinum material.

Abstract: A thick-film resistor contains RuO2 and an SiO2—B2O3—K2O glass having a composition of 60 wt %≦SiO2≦85 wt %, 15 wt %≦B2O3≦40 wt %, 0.1 wt %≦K2O≦10 wt %, and impurity ≦3 wt %. A ceramic circuit board includes a thick-film resistor printed on it, the thick-film resistor containing RuO2 and an SiO2—B2O3—K2O glass having the above composition.

Abstract: The present invention is aimed at providing a platinum material in which creep strength is elevated by improving a metal grain shape in an oxide-dispersion strengthened platinum material in which zirconium oxide is dispersed, and providing a process for producing the platinum material. The present invention provides an oxide-dispersion strengthened platinum material in which zirconium oxide is dispersed in platinum and which can be obtained through rolling and thermal recrystallization, in which platinum grains constituting the platinum material have an average grain size in a rolling direction in the range of 200 to 1500 &mgr;m and an average grain aspect ratio of 20 or more.

Abstract: This invention aims to provide a process for producing an oxide-dispersion strengthened platinum material which allows zirconium oxide to be more finely dispersed in a platinum material, and to further improve creep strength in an oxide-dispersion strengthened platinum material.