45results about How to "Avoid sacrifice" patented technology

An aluminum flat tube for a heat exchanger made of an aluminum strip material coated on its inner surface to form a flat cross-section close to a B-shape by bending in the width direction. It consists of a core material (1) coated with brazing material (3) on its outer surface by sacrificial anode material (2). In order to improve the corrosion resistance of the inner surface of the tube, both edge portions in the width direction of the strip material are bent inward into the tube so that the front end edges of the edge portions are separated from the flat inner surface of the tube.

The invention provides a seismic resistance and heat preservation building block which is provided with an outer side surface, an inner side surface, an upper slope, a lower slope and two end faces, wherein the upper slope faces upwards during the masonry; and a building block cavity is formed between two seismic resistance and heat preservation building blocks which are built up and down. The seismic resistance and heat preservation building block is characterized in that the building block cavity comprises a middle part, two side edge parts which are positioned on two sides of the middle part and are perpendicular to the middle part, an outward inclined cavity close to the outer side surface, and an inward inclined cavity close to the inner side surface; the seismic resistance and heat preservation building block comprises a plurality of through slots penetrating through the two end faces, a plurality of heat preservation bags filled in the through slots in a matching manner, and a convex corner and a concave corner which are respectively arranged on the two end faces and are used for clamping; the upper slope and the lower slope are in tight fit with each other in the middle part and on the two side edge parts; the building block cavity is gradually widened along the two sides of the two side edge parts to form the outward inclined cavity and the inward inclined cavity; the inclination of the outward inclined cavity is greater than that of the inward inclined cavity; the through slots are staggered from one another; and the protruded length of the convex corner is greater than the sunken length of the concave corner.

The invention discloses an initial-stage rescue auxiliary system of a fire hazard of a highway tunnel. The system is characterized in that the system comprises a detection robot platform, an embedded type control unit, a signal detection unit, a mark putting unit, a human-machine interaction system and a wireless router device, wherein the embedded type control unit, the signal detection unit, the mark putting unit, the human-machine interaction system and the wireless router device are carried by the detection robot platform; the human-machine interaction system comprises a main control bench and an intelligent mobile terminal, receives fire hazard information transmitted by the embedded type control unit in real time, and evaluates and process the fire hazard information; and an onsite rescuing worker can acquire conditions in front in real time through the intelligent mobile terminal and react in advance. According to the invention, based on the design of an embedded type development platform, a proper trace drawing algorithm is used to help the rescuing worker to determine the position of a trapped person in advance in a severe rescue environment, find a safe path as soon as possible and make a proper rescue plan.

This invention provides an image processing apparatus capable of suppressing the variation in density and contrast of a long-length image that is a joint image obtained by joining a plurality of X-ray images. An image processing apparatus (6) comprises: an image memory (62) for storing the data of a plurality of X-ray images (20, 21, 22) partially overlapping with one another; a density / contrast correcting unit (64) for evening up the densities and contrasts of the plurality of X-ray images; and a long-length image obtaining unit (65) for joining all of the X-ray images (20, 21', 22") as evened up in density and contrast by the density / contrast correcting unit (64), thereby obtaining a long-length X-ray image corresponding to a long-length image-captured area of an examined body (M). The density / contrast correcting unit (64) comprises: a first table creating unit (642) for obtaining, based on image information of the overlapping portions (20a, 21a, 21b, 22a) of two adjacent ones (20, 21; or 21, 22) of the plurality of X-ray images, a gray scale conversion table (AB, BC) with which the densities and contrasts of the two X-ray images (20, 21; or 21, 22) can be evened up; a second table creating unit (643) for obtaining, based on the gray scale conversion table (AB, BC), a second gray scale conversion table (BA, CB) with which the densities and contrasts of a reference X-ray image (20) and other remaining X-ray images (21, 22) selected from the plurality of X-ray images (20-22) can be evened up; and an evening unit (644) for evening up the densities and contrasts of the remaining X-ray images (21, 22) on basis of the second gray scale conversion table (BA, CB).