摘要:
The present invention provides a layered copper oxide as an insulator for superconductor or as a superconductor, which has a chemical composition represented by the formula of (R,Ce).sub.3 Sr.sub.2 Cu.sub.2 (M,Cu)O.sub.11, wherein R is a rare earth element other than Ce and M is one or both of Pb and T1, and has a crystal structure comprising a (M,Cu)Sr.sub.2 (R,Ce)Cu.sub.2 O.sub.7 ; unit of a TlBa.sub.2 CaCu.sub.2 O.sub.7 (1-2-1-2)-type structure and a [(R,Ce)O.sub.2 ].sub.2 unit of a fluorite-type structure alternately put on each other, or a chemical composition represented by the formula of (R,Ce).sub.3 Sr.sub.2 Cu.sub.2 (M,Cu)O.sub.10+z, wherein R is a rare earth element other than Ce, M is one or both of Pb or Tl, and has a crystal structure comprising a (R,Ce)Sr.sub.2 Cu.sub.2 (Cu,M)O.sub.6+z unit of a YBa.sub.2 Cu.sub.3 O.sub.3 O.sub.6+.delta. -type structure and a [(R,Ce)O.sub.2 ].sub.2 unit of a fluorite-type structure alternately put on each other, wherein z is in the range of 0.ltoreq.z.ltoreq.2 and .delta. is in the range of 0.ltoreq..delta..ltoreq.1.
摘要:
A train apparatus for removing thick blister buildups from an underground fiber conduit used for housing power cables. The train apparatus includes three or more cutting units including an initial, a middle and a final cutting unit having smallest, medium and largest overall cutting diameters respectively. Each cutting unit having a lead guide and six cutting stars each having four cutting blades where the cutting blades on one cutting star are offset with the cutting blades on the other cutting stars. When pulled through the fiber conduit, the lead guide of the cutting units will prevent the cutting unit from going off the center of the conduit and digging itself into the interior sidewall of the conduit. The initial, middle and final cutting units will remove respectively the surface, the intermediate and the underneath portions sequentially. The train apparatus further includes a trailing guide for preventing it from going off center of the conduit and digging itself into the interior sidewall of the conduit. When the train gets stuck inside the fiber conduit and it is necessary to pull it out backwardly, a cable will be attached to the trailing guide for this purpose.
摘要:
A superconducting material is disclosed which includes oxides of metals having the following composition:(Pb.sub.1-z Cu.sub.z) ((Sr.sub.1-y Ba.sub.y).sub.1-v Ca.sub.v).sub.2 (A.sub.1-x Ca.sub.x)Cu.sub.2wherein A is at least one element selected from the group consisting of Y, La, Nd, Sm, Eu, Gd, Ho, Er, Yb and mixtures of at least one of Y, La, Nd, Sm, Eu, Gd, Ho, Er and Yb with at least one of Tb, Tm and Lu, x, y, v and z are numbers satisfying the following conditions:0.ltoreq.x.ltoreq.0.4,0.1.ltoreq.y
摘要:
An apparatus for producing a superconducting oxide film with stable properties by metal organic chemical vapor deposition, suitable for mass production, is provided with a gas analyzer comprising a differential pressure meter 38 between a raw material gas collector tube 35 provided in a transfer line 8 for leading a raw material gas to a film forming chamber 10 and a bypass line 37, a dilution gas line 49 interlocked with the differential pressure meter 38 and for leading a dilution gas to the raw material gas collector tube 35, a gas separation column 42 branched from the bypass line, a gas detector 31 connected to the gas separation column 42, flow rate controllers 50 for carrier gases 43 and 45 and a thermostat 13 for heating all the lines. Amounts of raw materials gases can be readily measured and controlled and thus superconducting oxide films of stable properties in a constant metal composition ratio can be continuously produced, and thus the present apparatus is suitable for mass production of tape form, superconducting materials.
摘要:
To provide a digital data transmitting apparatus and a digital data receiving apparatus that can realize, even when a transmission channel characteristic changes because of aged deterioration or the like of a relay, improvement of a reception performance following the change.A transmitting apparatus 1 generates a multiplexing frame formed by N slots including control information, data, outer parities, stuff bits, and inner parities and added with synchronization, pilot, and a transmission control signal and a parity and transmits data of the respective slots in a transmission system designated by the transmission control signal. In this case, pilot signals are symbols allocated to all signal points in order determined in advance for each of modulation schemes. A receiving apparatus 2 rewrites a phase error table 214 to calculate a phase error and performs synchronous detection according to the pilot signals. The receiving apparatus 2 also rewrites a likelihood table 235 to perform inner code decoding. Consequently, since reception processing adapted to distortion of a transmission channel characteristic can be performed, improvement of a reception performance can be realized.
摘要:
An autonomous mobile body includes a storage unit arranged to store a size D2 of the autonomous mobile body, a laser range sensor arranged to acquire obstacle information, an obstacle identification unit arranged to identify, based on the acquired obstacle information, edge points indicating positions of both ends of a region in which an interfering obstacle exists, the both ends being both ends on a plane parallel or substantially parallel to a passage plane in a direction which is perpendicular or substantially perpendicular to a moving target direction of the autonomous mobile body, a direction setting unit arranged to set a pull-off direction based on the size D2 of the autonomous mobile body and the edge points, and a mobile controller arranged and programmed to control the autonomous mobile body to move toward the pull-off direction.
摘要:
An autonomous mobile device that moves while autonomously avoiding zones into which entry should be avoided even if no obstacle exists therein includes a laser range finder that acquires peripheral obstacle information, a storage unit that stores an environment map that shows an obstacle zone where an obstacle exists, and a no-entry zone map which shows a no-entry zone into which entry is prohibited, a self-location estimation unit that estimates the self-location of a host device by using the obstacle information acquired by the laser range finder and the environment map, and a travel control unit that controls the host device to autonomously travel to the destination by avoiding the obstacle zone and the no-entry zone based on the estimated self-location, the environment map, and the no-entry zone map.
摘要:
Error diffusion processing is performed for each pixel in each region of an image divided into a plurality of regions, by scanning in both the first and second directions different to each other. A diffusion coefficient set for diffusing, to the pixel of interest to be processed, a quantization error generated upon quantizing a pixel near the pixel of interest is set in accordance with the position of the pixel of interest in scanning in the first direction in the region of interest. The pixel of interest to which an error has been diffused from a pixel position referring to the set diffusion coefficient set is quantized.
摘要:
An autonomous mobile device is capable of taking action that is suitable to execute a task in accordance with a given situation includes and executes a predetermined task upon autonomously moving to a destination. The autonomous mobile device includes a storage unit that stores an environment map, a laser range finder that acquires peripheral obstacle information, an unknown information identification unit that identifies unknown obstacle information from the peripheral obstacle information, an assessment information acquisition unit that acquires a plurality of types of assessment information including movement information, relative position information, and attribute information that are related to the unknown obstacle, when the unknown obstacle information is identified, and a scenario selection unit that selects, based on the assessment information, one action scenario among a plurality of action scenarios including an action scenario which is defined to execute the task and is other than an action scenario to cancel or continue the execution of the task.
摘要:
An environmental map correction device that acquires an environmental map that matches an actual ambient environment includes a conversion unit arranged to convert object existence probability information of respective grids configuring a global map into image information (shading information of a black and white image), a display unit arranged to display a global map image based on the converted image information, an operation input unit arranged to receive a correcting operation from a user, a correction unit arranged to correct the global map image displayed by the display unit according to the correcting operation by the user, and an inversion unit arranged to acquire a corrected global map by inverting the corrected global map image (shading information) into the object existence probability information.