摘要:
A vibrating body for an acoustic transducer is provided, in which the high resonance frequency associated with inverse resonance can be outside the audible range and which can improve the acoustic characteristic of a speaker device. The vibrating body 1 for an acoustic transducer includes: a diaphragm 2 including a first vibrating part 2a and a second vibrating part 2b formed in proximity of the outer circumferential edge of the first vibrating part 2a; and an edge portion 3 formed in proximity of the outer circumferential edge of the diaphragm 2. In the vibrating body 1 for an acoustic transducer, first reinforcing portions 6a and 6b are formed so as to extend from the second vibrating part 2b to the edge portion 3 in a radial direction.
摘要:
A speaker apparatus comprises a dome type diaphragm comprising: a reinforcing rib; and an edge damper integrally formed with an outer periphery of the dome type diaphragm; and a frame supporting the dome type diaphragm through the edge damper. The reinforcing rib comprises at least one of a groove portion and a ridge portion. The reinforcing rib is extended radially with respect to the dome center portion from a vicinity of a dome center portion of the dome type diaphragm to a dome outer periphery side.
摘要:
A speaker apparatus comprises a dome type diaphragm comprising: a reinforcing rib; and an edge damper integrally formed with an outer periphery of the dome type diaphragm; and a frame supporting the dome type diaphragm through the edge damper. The reinforcing rib comprises at least one of a groove portion and a ridge portion. The reinforcing rib is extended radially with respect to the dome center portion from a vicinity of a dome center portion of the dome type diaphragm to a dome outer periphery side.
摘要:
A vibrating body for an acoustic transducer is provided, in which the high resonance frequency associated with inverse resonance can be outside the audible range and which can improve the acoustic characteristic of a speaker device. The vibrating body 1 for an acoustic transducer includes: a diaphragm 2 including a first vibrating part 2a and a second vibrating part 2b formed in proximity of the outer circumferential edge of the first vibrating part 2a; and an edge portion 3 formed in proximity of the outer circumferential edge of the diaphragm 2. In the vibrating body 1 for an acoustic transducer, first reinforcing portions 6a and 6b are formed so as to extend from the second vibrating part 2b to the edge portion 3 in a radial direction.
摘要:
A highly stable crystal of (1S)-1,5-anhydro-1-[5-(4-{(1E)-4-[(1-{[2-(dimethylamino)ethyl]amino}-2-methyl-1-oxopropan-2-yl)amino]-3,3-dimethyl-4-oxobut-1-en-1-yl}benzyl)-2-methoxy-4-(propan-2-yl)phenyl]-D-glucitol, and a process for producing the crystal are provided. Specifically, an ethanolate having the following physical properties, and a plurality of other crystal forms transformed from the ethanolate are provided: (a) Having peaks at 2θ=5.9 degrees, 17.1 degrees, 17.6 degrees and 21.5 degrees in X-ray powder diffraction (Cu—Kα); (b) Showing characteristic absorption bands at 3538 cm−1, 3357 cm−1, 2964 cm−1, 1673 cm−1, 1634 cm−1 and 1505 cm−1 in an infrared absorption spectrum; and (c) Having a melting point in a vicinity of 111° C.
摘要:
A process for producing a 3-alkoxy-2-amino-6-fluoro bicyclo[3.1.0]hexane-2,6-dicarboxylic acid derivative represented by the formula (I) or a salt thereof, which includes converting a compound represented by the formula (VI) or a salt thereof to the compound represented by the formula (I) or a salt thereof.
摘要:
An information processing system includes an electronic device and an information processing unit. The electronic device includes a fault detection unit; a data generating unit for generating, as data, the content of the detected fault; a data dividing unit for dividing the generated data into plural division data in the case where the data exceeds a predetermined capacity; a data compression unit for compressing each of the plural division data; an identification information adding unit for adding identification information to each of the plural compressed division data; and a data transmission unit for transmitting the plural compressed division data with the identification information. The information processing unit includes a data receiving unit for receiving the plural compressed division data, and a data restoration unit for restoring the plural compressed division data into original data based on the identification information.
摘要:
A process for producing a 3-alkoxy-2-amino-6-fluoro bicyclo[3.1.0]hexane-2,6-dicarboxylic acid derivative represented by the formula (I) or a salt thereof, which includes converting a compound represented by the formula (VI) or a salt thereof to the compound represented by the formula (I) or a salt thereof.
摘要:
Provided is a linear motor actuator capable of eliminating an influence to be exerted onto linear guides (3) due to heat generated by a coil unit (50), sufficiently securing moving accuracy and positioning accuracy of a table plate (4) supported by the linear guides (3), and in addition, maintaining the accuracies over a long period of time. The linear motor actuator includes: a base plate (2) to be fixed to another mechanical apparatus; a plurality of linear guides (3) disposed parallel to each other on the base plate (2); a table plate (4), which is supported by the plurality of linear guides (3) and freely reciprocates above the base plate (2); a magnet unit (51) provided on the table plate (4); and a coil unit (50) provided on the base plate (2) so as to be opposed to the magnet unit (51) to form a linear motor (5). The base plate (2) and the table plate (4) are each made of a material having a coefficient of linear expansion of 11×10−6 (1/° C.) or less, and a difference is provided between the coefficients of linear expansion of the base plate (2) and the table plate (4).
摘要:
One aspect of the invention includes, a cutting machine, such as a table-top circular saw having a table for placing thereon a workpiece, and a cutting machine body having a saw blade rotated by an electric motor. An insulation member may be attached to a tilt support shaft that vertically movably supports the cutting machine body relative to the side of a body support section constituted mainly by a table, so that conduction of a radio frequency current from the cutting machine body to the body support section is blocked.