727 results about "Curve line" patented technology

In order to produce an easily removable individually packaged absorbent article such as a sanitary napkin, while maintaining the surface sheet thereof in a hygienic state and avoiding the occurrence of individually-packaging failures such as bending or wrinkling of a packaging sheet on the production line, in the process of producing individually packaged absorbent articles, absorbent articles are provided at definite intervals on a band shaped sheet and a notch out satisfying the following conditions is formed at the intermediate site between each pair of the absorbent articles. [1] The notch out is formed by an outward curved cut line, which starts from the cutting-starting point in the side periphery toward the diagonally tilting direction forward in the line and shows a convex outward of the band shaped sheet, and an inward curved line which is connected to the endpoint of the outward curved cut line via a ininflexion point P and shows a convex inward of the band shaped sheet. [2] When the interval distance in the line direction of the outward curved cut line is referred to as B and the distance from the ininflexion point P to the side periphery line of the band shaped sheet is referred to as A, the relationship B>1.5A is satisfied.

The invention discloses a microwave three-dimensional imaging method based on a rotary antenna array, and relates to a microwave imaging technology. The method comprises the following steps of: generating an electromagnetic signal by a signal transmitting module; driving an antenna array module which is distributed in a straight line form or a curved line form to rate by a mechanical scanning module, meanwhile, controlling the antenna array module by a switch array module to transmit an electromagnetic signal at the same time, and receiving a signal which is reflected back from an observation target by a back wave receiving module; converting a reflecting signal into a digital signal by an analogue-digital conversion module; and using the digital signal as back wave data acquired by an array element position of the corresponding antenna array; imaging the back wave data by a data processing module to acquire a three-dimensional complex image of the observation target; and displaying the three-dimensional complex image of the observation target by a display module. The imaging method disclosed by the invention is used for application fields of human body surface microwave image acquisition and safe detection, three-dimensional data acquisition of a human body and action based on actual circumstances, nondestructive testing, radar target imaging diagnosis and the like.

A method for producing a digital topographic map, comprising the following steps of: a step for dividing a basic map, which is produced through UTM drawing method, into grid-like sectors at a predetermined distance, and further dividing the sector obtained into a smaller one (4), thereby producing small sectors while interpolating discontinuous data being in short between each sectors and within each of the sectors; a step for producing digital data by relating x,y coordinates of the small sector (4) obtained and a sea level obtained through measurement, upon basis of an algorithm having a rationality, and connecting the small sectors (4) being same in the sea level thereof with a straight line, thereby producing a first topographic map (5), on which contour lines (6) are formed with lines of segments; and a step for conducting a smoothing process upon the contour lines (6) of said first topographic map (5), mathematically, thereby producing a second topographic map (7), on which the contour lines (6) are formed with curved lines, being smoother than the contour liens (6) of said first topographic map, which are formed with the lines of segments, thereby enabling to obtain the digital topographic map, displaying the contour lines (6) with smoothly curved lines thereon.

The invention relates to a construction method for the new frame bridge to replace the old frame bridge on the prior railway. The construction method comprises the required jacking force of the old frame bridge according to the formula; the prior railway line is strengthened; the line strengthening system and the reinforcing steel drawing ring are tightened through a jack; the lately supplemented triangular blocks is arranged at the rear end of the bottom plate of the old frame bridge; a cantilever bracket is arranged; a new bridge back is arranged, and a jacking column and a jacking pickaxe are respectively arranged between the new frame bridge and the new bridge back and between the old frame bridge and the cantilever bracket; a plurality of thixotropic slurry holes are formed on the both sides of the old frame bridge and the bottom surface of the bottom plate, and thixotropic slurry is filled into the thixotropic slurry holes; the old frame bridge is jacked out; when the old frame bridge is jacked out, the new frame bridge is jacked in. Under the precondition that the railway operation is not interrupted, the construction method can rapidly jacked the old frame bridge out, the application scope is wide, and the construction method can not be limited by time and space. In addition, because the conventional reinforcement method of track lock plus the longitudinal and horizontal beam is adopted in the prior railway line, the construction method is suitable for various railway situations such as a straight line section and the curved line section, and the security is high.

A steering device for toy, which comprises a simple structure, and provides a stable running along a curved line. The steering device for toy, comprises: right and left turning members for turning right and left steering wheels in clockwise and counterclockwise directions around each predetermined shaft; and a connecting member for connecting the right and left turning members with each other and for forming a turning pair with each turning member; wherein the right and left turning members are turned around each predetermined shaft by shaking the connecting member in right and left directions so as to change each direction of the steering wheels; one of a coil and a magnetic body is provided on the connecting member, the other of the coil and the magnetic body is fixed to a fixing portion, and the coil and the magnetic body come close to and go away from each other by shaking the connecting member; and the connecting member takes at least two steering positions by controlling a current to be carried to the coil with a coil current carrying unit.