摘要:
A carbon fiber reinforced composite material includes carbon fiber and a thermosetting resin composition. The thermosetting resin composition is a cured product of a liquid composition that contains unsaturated polyester, a curing agent, a polymerization initiator, and a nanocarbon/nanocellulose complex containing nanocarbon modified by functional a group and nanocellulose. The nanocarbon/nanocellulose complex is dispersed in the thermosetting resin composition. The thermosetting resin composition contains 0.05 to 15% by weight of the nanocarbon/nanocellulose complex. A maximum point stress of the carbon fiber reinforced composite material in a tensile test according to JIS K 7164 is 410 N/mm2 or more. A maximum point stress of the carbon fiber reinforced composite material in a three-point bending test according to JIS K 7171 is 310 N/mm2 or more.
摘要:
A first communication device receives an ATM cell bound for a second ATM device from a first ATM device via an ATM interface, and then the first communication device sends a data frame including the ATM cell to the second ATM device via wide area Ethernet. In addition, the first communication device sends a synchronization frame to the second ATM device via the wide area Ethernet continuously at a predetermined time interval in accordance with a clock frequency of the first ATM device. A second communication device receives the synchronization frame and measures a clock frequency of the first ATM device in accordance with a time interval of receiving the synchronization frame so as to reproduce a clock having the same frequency as the measured clock frequency. After that, the second communication device sends the clock to the second ATM device via an ATM interface.
摘要:
A failure detection system detects a failure of a package in a redundant system having a duplex package configuration. The failure detection system includes a first package including a signal processor for carrying out a predetermined signal processing on an input signal to the first package, where the first package is provided in each of first and second systems, a second package including a selector for selectively outputting an output signal of the signal processor of the first package in one of the first and second systems in response to a control signal, a failure detector for detecting a failure in the output signal of the signal processor of the first package in each of the first and second systems and for outputting a failure detection signal if the failure is detected, and a signal processor for carrying out a predetermined signal processing on the output signal of the selector, where the second package is provided in each of first and second systems, and a controller for supplying the control signal to the selector of the second package in each of the first and second systems based on the failure detection signal received from the second package in each of the first and second systems, so that the selector selectively outputs the output signal of the signal processor of the first package in an active one of the first and second systems. The controller includes a mechanism for disregarding the failure detection signal received from the second package during a predetermined time in response to a predetermined signal. This predetermined signal may indicate which one of the first and second systems is active or, indicate whether or not the second package of each of the first and second systems is mounted on a unit to which the first package of each of the first and second systems is mounted.
摘要:
An optical information recording medium according to the present invention is featured by its recording layer which contains a compound of tellurium (Te), selenium (Se) and nitrogen (N). The thickness of the recording layer 2 favorably ranges from about 100 angstroms (.ANG.) to about 1000 .ANG. and more favorably from 180 .ANG. to 400 .ANG.. The content of Se in the recording layer 2 favorably lies within a range from 2 to 40 atomic percent, more favorably from 10 to 30 atomic percent. The content of N is favorably to be from 2 to 20 atomic percent, and more favorably from 2 to 10 atomic percent.
摘要:
An optical information storage medium comprising a transparent substrate and an information carrying layer positioned on one side of the substrate, wherein the information carrying layer contains at least 30 percent by volume of tin and at least 20 percent by volume of nickel oxide. The information carrying layer may be formed directly on one surface of the substrate. Alternatively, the information storage medium may further comprise a first spacer layer formed on one surface of the substrate and a second spacer layer which intervenes between the first spacer layer and the information carrying layer, wherein the first spacer layer is substantially transparent to a radiation with a predetermined wavelength and is larger in refractive index than the substrate at the aforesaid wavelength and the second spacer layer is substantially transparent to the aforesaid radiation and is smaller in refractive index than the first spacer layer at the aforesaid wavelength.
摘要:
A first communication device receives an ATM cell bound for a second ATM device from a first ATM device via an ATM interface, and then the first communication device sends a data frame including the ATM cell to the second ATM device via wide area Ethernet. In addition, the first communication device sends a synchronization frame to the second ATM device via the wide area Ethernet continuously at a predetermined time interval in accordance with a clock frequency of the first ATM device. A second communication device receives the synchronization frame and measures a clock frequency of the first ATM device in accordance with a time interval of receiving the synchronization frame so as to reproduce a clock having the same frequency as the measured clock frequency. After that, the second communication device sends the clock to the second ATM device via an ATM interface.
摘要:
A converter for connecting its ATM network with other ATM networks through a LAN, which is provided with an address translation table storing external VPIs, internal VPIs uniquely assigned to the LAN, and opposing MAC addresses for opposing converters in correspondence and a processing unit for performing control for transmitting, to the LAN, frames changed from the external VPI/VCIs of headers of cells from its ATM network to the internal VPI/VCIs by referring to the address translation table and having opposing MAC addresses corresponding to the internal VPI/VCIs attached, removing the opposing MAC addresses of frames received from the LAN by referring to the address translation table, and transmitting cells changed from internal VPI/VCIs to external VPI/VCIs to its ATM network.
摘要:
An apparatus for photographing a corneal endothelium of a patient's eye according to the invention includes an optical system for observing the anterior segment of the eye to align optical systems of the apparatus with the eye; an illumination optical system for projecting each illumination light emitted by a light source for observation and a light source for photography onto the cornea of the eye; an endothelium observing and photographing optical system for receiving reflected light from the corneal endothelium and observing and photographing it, the observing and photographing optical system including a reflected light receiving element for aligning the optical systems of the apparatus in the back and forth directions with the eye; display means for displaying images of the anterior segment and the corneal endothelium separately from each other; and image switching means for switching a displayed image from the anterior segment to the corneal endothelium and vice versa.
摘要:
An optical information storage medium comprising a transparent substrate and an information carrying layer positioned on one side of the substrate, wherein the information carrying layer contains at least 30 per cent by volume of tin and at least 15 per cent by volume of cobalt oxide. The information carrying layer may be formed directly on one surface of the substrate.
摘要:
A multi-port time switch element for cross-connecting an n-channel multiplexed data includes m input ports for receiving m n-channel multiplexed data, a memory part for alternately writing and reading the n-channel multiplexed data, m selectors for writing and reading the n-channel multiplexed data so that each of the m selectors receives m.times.n data read from the memory part and selects one of the m.times.n data n times in an arbitrary sequence to output an n-channel multiplexed data, and m output ports for outputting the m n-channel multiplexed data read from the m selectors.