Abstract:
A preload measuring apparatus to measure the preload of a rolling bearing that includes a bearing support, a pressurization device, an excitation device, a vibration sensor, and a control section. The bearing support supports a rolling bearing by supporting both ends of a shaft inserted into an inner ring of the rolling bearing. The pressurization device loads a predetermined weight in the axial direction onto the rolling bearing. The excitation device applies vibration onto the rolling bearing by the drive of the piezoelectric elements. The vibration sensor detects the vibration generated on the rolling bearing by the vibration application of the excitation device. The control section operates the excitation device in the situation that the pressurization device presses the rolling bearing, and obtains the resonance frequency by the output signal from the vibration sensor and calculates the preload of the rolling bearing according to the obtained resonance frequency before the predetermined weight as loaded.
Abstract:
A process for preparing nitrogen-containing isotropic pitch, comprising the steps of mixing a petroleum heavy oil, a nitrating reagent and water to prepare a homogeneous dispersion, thereby contacting the petroleum heavy oil with the nitrating reagent in the homogeneous dispersion state to prepare a crude nitrated heavy oil, and subjecting the crude nitrated heavy oil to refining, thermal polymerization and vacuum distillation. According to the process of the invention, a petroleum heavy oil containing a large amount of light oil components and being liquid at ordinary temperature, from which pitch has been hardly prepared conventionally, is used as a starting material for preparing pitch, and there can be obtained nitrogen-containing isotropic pitch of homogeneity and high quality having a desired softening point of from a low softening point to a high softening point, though such pitch was unable to be obtained so far.
Abstract:
While maintaining a shaft in a fixed state, an outer ring is rotated. Vibrations of the shaft are detected by a first vibration pickup and a second vibration pickup. Detection signals of both the vibration pickups are delivered to a frequency converter via amplifier, respectively. The frequency converter determines, by Fourier transformation, the rotation frequency of the outer ring, the revolution frequency of balls and the resonance frequency of the double-row ball bearing. A first computing assembly then calculates the contact angle and bearing rigidity, and a second computing assembly calculates the preload.
Abstract:
Disclosed is a magneto-optical recording element comprising a dielectric layer and an amorphous perpendicular magnetization film on a substrate, wherein the perpendicular magnetization film is a perpendicular magnetization film comprising at least Gd element as the rare earth metal element and Fe metal as the transition metal component, in which the Fe sub-lattice moments are dominant, the dielectric layer is a dielectric layer composed of amorphous silicon nitride, the magnetization Ms of the perpendicular magnetization film is set within a range represented by the following formula (1):20 emu/cc.ltoreq.Ms.ltoreq.70 emu/cc (1)and the product of the magnetization Ms and the coercive force Hc is set within a range represented by the following formula (2):100 emu.multidot.KOe/cc.ltoreq.Ms.multidot.Hc.ltoreq.500 emu.multidot.KOe/cc(2)This magneto-optical recording material is suitable for the magnetic field modulation recording method, and even if overwriting is carried out in the recording method, the element shows excellent characteristics and high performances.
Abstract translation:公开了一种磁光记录元件,其包括在基板上的电介质层和非晶垂直磁化膜,其中垂直磁化膜是至少包括作为稀土金属元素的Gd元素和作为过渡金属的Fe金属的垂直磁化膜 其中Fe子晶格矩是主要的,介电层是由非晶氮化硅构成的电介质层,垂直磁化膜的磁化强度Ms设定在由下式(1)表示的范围内:20emu / cc = 70emu / cc(1),并且磁化强度Ms和矫顽力Hc的乘积设定在由下式(2)表示的范围内:100 emuxKOe / cc MsxHc = 500 emuxKOe / cc(2)该磁光记录材料适用于磁场调制记录方法,即使在记录方法中进行重写,该元素显示出优异的色彩 专业性和高性能。
Abstract:
In a magneto-optical recording element comprising a substrate, a magentic layer and a dielectric layer, the dielectric layer is formed by deposition of a composition comprising Si.sub.3 H.sub.4 and a refractive index-improving agent such as Al.sub.2 O.sub.3 or Y.sub.2 O.sub.3. This dielectric layer has a high refractive index and the enhancement effect is improved. Moreover, this dielectric layer is excellent in the adhesion and resistance characteristics.
Abstract translation:在包括基板,磁性层和电介质层的磁光记录元件中,通过沉积包括Si 3 H 4和诸如Al 2 O 3或Y 2 O 3的折射率改进剂的组合物形成电介质层。 该介电层具有高折射率,并且提高了增强效果。 此外,该电介质层的粘合性和电阻特性优异。
Abstract:
In a magneto-optical recording element comprising a substrate, a magnetic layer and a dielectric layer, the dielectric layer is formed by deposition of a composition comprising Si.sub.3 N.sub.4 and a refractive index-improving agent such as Al.sub.2 O.sub.3 or Y.sub.2 O.sub.3. This dielectric layer has a high refractive index and the enhancement effect is improved. Moreover, this dielectric layer is excellent in the adhesion and resistance characteristics.
Abstract translation:在包括基板,磁性层和电介质层的磁光记录元件中,通过沉积包含Si 3 N 4和诸如Al 2 O 3或Y 2 O 3的折射率改进剂的组合物形成电介质层。 该介电层具有高折射率,并且提高了增强效果。 此外,该电介质层的粘合性和电阻特性优异。
Abstract:
A process for preparing free carboxylic acids which comprises treating an optionally substituted benzyl ester with a Lewis acid, preferably in the presence of a cation acceptor, followed by hydrolysis, if required.
Abstract:
An image reading apparatus includes: a partial pre-scanning device configured to convey a reading unit in an edge detection area and causes the reading unit to execute a reading operation in the edge detection area, the edge detection area being a partial area within a scannable area on a platen, and a detecting device configured to detect a plurality of edge pixels on a basis of image data, the plurality of edge pixels representing a side of a document, the image data being outputted by the reading unit that reads the edge detection area through execution of the reading operation by the partial pre-scanning device. Upon the plurality of edge pixels not detected on the basis of the image data, the partial pre-scanning device moves the edge detection area in a conveying direction of the reading unit and causes the reading unit to execute the reading operation.
Abstract:
A vehicle-mounted narrow-band wireless communication apparatus includes: information storing/managing section 905 for storing and managing roadside information from a wireless communication unit and operating condition information from an operating condition detection unit 903; an information provision determination unit 904 for determining whether or not information can be provided on the basis of the roadside information and the operating condition information; an HMI output control unit 906 for controlling HMI output on the basis of a determination result from the information provision determination unit 904 and environment information relating to a junction neighborhood obtained from a parameter management unit 907 for managing parameters relating to an HMI; and an information provision output apparatus 901 for performing information provision on the basis of an HMI output request transmitted from the HMI output control unit 906.
Abstract:
A non-volatile semiconductor storage device includes: a memory string including a plurality of memory cells connected in series; a first selection transistor having one end connected to one end of the memory string; a first wiring having one end connected to the other end of the first selection transistor; a second wiring connected to a gate of the first selection transistor. A control circuit is configured to boost voltages of the second wiring and the first wiring in the erase operation, while keeping the voltage of the first wiring greater than the voltage of the second wiring by a certain potential difference. The certain potential difference is a potential difference that causes a GIDL current.