摘要:
A 3-D coordinate measurement is performed in such a way that an electrooptical distance-measuring device is used to measure a linear distance to a target point set on a surface of a measurement object, an angle measuring device is used to measure shifted angles of an optical axis of the electrooptical distance-measuring device, and a 3-D coordinate of the target point is measured according to a measured distance and a measured angle after the optical axis of the electrooptical distance-measuring device has been aligned to the target point. The present method includes a coordinate recognizing step for observing a plurality of targets, recognizing a plurality of target points, and calculating approximate 3-D coordinates of the target points; a macroscopic sighting step for approximate aligning the optical axis of the electrooptical distance-measuring device; and a microscopic sighting step for aligning the optical axis of the electrooptical distance-measuring device to the one of the target points in the predetermined viewfield range.
摘要:
A paraquat resistance gene and a vascular tissue- and trichome-specific promoter are provided. The paraquat resistance gene and the vascular tissue- and trichome-specific promoter are isolated by identifying and analyzing genes of Arabidopsis thaliana.
摘要:
A paraquat resistance gene and a vascular tissue- and trichome-specific promoter are provided. The paraquat resistance gene and the vascular tissue- and trichome-specific promoter are isolated by identifying and analyzing genes of Arabidopsis thaliana.
摘要:
The present invention relates to a aiming apparatus to be interposed between a reflector and a housing to adjust direction of light reflected by the reflector; the aiming apparatus comprising an adjusting screw rotatably engaged at one end with the housing at a predetermined position; a pivot nut having at one end a nut portion capable of achieving thread engagement with the other end of the adjusting screw and at the other end a pivot portion, respectively; a pivot holder attached to a rear side of the reflector; and a nut receiver fixed on the front side of the housing at a predetermined position.
摘要:
A synthetic resin grommet is provided which has a substantially cylindrical body having a flange portion and a head portion. The flange portion has an inverted dish-like shape and includes an elastically deformable vane-like shaped rim portion. Stopping claws are arranged on an outer circumference of the cylindrical body such that tips of the claws face the flange portion, and an elastically compressible annular rib is formed on top of the head portion of the cylindrical body. An upper portion of the head portion has a tapered face, and the annular rib is formed above the tapered face. With this structure, an inexpensive synthetic resin grommet is provided which exhibits sealing facility when it is fitted to a body of a car or a home electric appliance and when a part is attached thereto through the grommet, and which accurately and securely prevents the entrance of water into the body without requiring intricate procedures such a fitting of a sealing annulus.
摘要:
An information recording disk comprising a disk-like substrate and magnetic layers formed on both surfaces of the substrate is provided with a mark punched through the disk. The mark is provided by, for example, a hole positioned apart from a reference line passing through both the center of an index hole for specifying the circumferential position of the disk and the center of the disk. If the disk is rotated by 180.degree. about the reference line, the position of the mark is reversed with respect to the reference line, making it possible to distinguish the front and back surfaces of the disk. The magnetic layers formed on both surfaces of the substrate by means of, for example, sputtering, differ from each other in magnetic properties. To determine the magnetic layer used for the information recording-reproduction or to determine the optimum conditions for the recording-reproduction, it is necessary to distinguish the front and back surfaces of the disk. The mark provided in the disk of the present invention permits visually distinguish the front and back surfaces of the disk easily in the step of loading the disk in a package. Also, the mark can be provided in the punching step of a tape having magnetic layers formed on both surfaces thereof in a disk-like shape, thereby eliminating confusion in the later step.
摘要:
The disclosure relates to a sintered aluminum nitride base composite material which consists essentially of 5-50 wt % of SiC whiskers, 0.5-10 wt % of sintering assistant(s) selected from SiO.sub.2, Y.sub.2 O.sub.3, CaO, Al.sub.2 O.sub.3, Mo, W, Mo.sub.2 C, WC and oxides of elements of the lanthanide series and the balance of AlN. By virtue of dispersion of SiC whiskers in AlN base ceramic matrix the sintered material is very enhanced in strength, toughness and hardness and exhibits increased heat conductivity. The sintered material provides excellent cutting tools since Rockwell superficial hardness, 45N scale, can be made higher than 85.
摘要翻译:本发明涉及一种基本上由5-50重量%的SiC晶须组成的烧结氮化铝基复合材料,0.5-10重量%的选自SiO 2,Y 2 O 3,CaO,Al 2 O 3,Mo,W,Mo 2 C的烧结助剂 ,WC和镧系元素元素的氧化物以及AlN的余量。 由于SiC晶须在AlN基体陶瓷基体中的分散,所以烧结材料的强度,韧性和硬度都非常提高,并表现出增加的导热性。 烧结材料提供了优良的切削工具,因为洛氏硬度45N的表面硬度可以高于85。
摘要:
An optical semiconductor device includes a light emitting element having a first surface and a second surface, the first surface having a first electrode provided thereon, the second surface being located on the opposite side from the first surface and having a second electrode provided thereon; a first conductive member connected to the first surface; a second conductive member connected to the second surface; a first external electrode connected to the first conductive member; a second external electrode connected to the second conductive member; and an enclosure sealing the light emitting element, the first conductive member, and the second conductive member between the first external electrode and the second external electrode, and being configured to transmit light emitted from the light emitting element.
摘要:
In a graphing calculator, a decimal calculation unit obtains a calculation result of an arithmetic expression input by an input device to an n-th digit and an (n+m)-th digit. When the values from the most significant digit to an (n+1)-th digit in the (n+m)-digit calculation result are zero, with respect to an addition or subtraction, the CPU corrects an n-digit calculation result of the addition or subtraction to zero.
摘要:
Provided is a method of manufacturing an optical semiconductor device, the method including: providing a resin layer on a light-emitting substrate to cover a principle surface of the light-emitting substrate, the light-emitting substrate including a pair of electrodes in each section of the principle surface, the resin layer including multiple holes each exposing two of the electrodes located adjacent to each other but in the different sections; providing post electrodes respectively on all the paired electrodes formed in all the sections by filling a conductive material in the holes of the resin layer on the principal surface; and forming multiple optical semiconductor devices by cutting the light-emitting substrate into sections, the light-emitting substrate provided with the post electrodes respectively on all the paired electrodes formed in all the sections.