Abstract: An optical-branching unit enables suppression of deterioration of the transmission characteristic of a survivor signal without executing complex control of constant-power output. Optical-amplification means amplifies and supplies a input optical signal, and when not receiving the optical signal, amplifies and supplies amplified spontaneous emission that the optical-amplification means generates. Detection means detects whether the optical signal is input to the optical-amplification means. When the optical signal is not input to the optical-amplification means, control means sets gain that determines the magnitude of amplification in the optical-amplification means to a predetermined value greater than gain at the time the optical signal is input to the optical-amplification means.

Abstract: At a receiver side, to enhance the performance of concatenated LDPC and TCM coding, an iterative decoding between TCM decoder and LDPC decoder enables improvement in the reliability of received LLRs of each symbol after each iteration. A SOVA output of the TCM is used for LDPC decoding, and then the updated LLRs from LDPC decoder are further looped back to the TCM decoder for the next iteration. In such a manner, the decoding performance could be significantly improved after just several iterations.

Abstract: The present invention enables to prevent transmission characteristics from deteriorating due to the nonlinear effect in the transmission path caused by an increase in the channel power when a cable disconnection occurs.

Abstract: An optical transmission apparatus according to the present invention includes: wave splitter (101) splitting an input optical signal into a plurality of wavelength bands; a plurality of optical switches (111-113) composed of optical shutters or variable optical attenuators that pass or shut off split optical signals corresponding to a plurality of optical signals split by wave splitter (101); optical coupler (120) combining optical signals that are output from the plurality of optical switches (111-113); and control section (130) setting up each of the plurality of optical switches (111-113), in which each of the plurality of optical switches is in a state of passing the split optical signals or in a state of shutting-off the split optical signals.

Abstract: Provided is a curable composition for inkjet capable of improving uniformity of a cured product film and heat resistance of a cured product. The curable composition for inkjet according to the present invention contains a compound having a (meth)acryloyl group and a cyclic ether group, a photoreactive compound, a compound having a cyclic ether group, a photopolymerization initiator, and a potential curing agent, the photoreactive compound and the compound having a cyclic ether group each are a compound other than the compound having a (meth)acryloyl group and a cyclic ether group, the compound having a (meth)acryloyl group and a cyclic ether group has one or two (meth)acryloyl groups, and the viscosity at 25° C. of the curable composition for inkjet according to the present invention is 160 mPa·s or more and 1200 mPa·s or less.

Abstract: The present invention provides a damaged part treatment composition for repairing a damaged part of a target tissue that includes a stem cell-conditioned medium obtained by culturing stem cells; a damaged part treatment method for repairing or restoring a damaged part of a target tissue that includes administering the damaged part treatment composition to a patient having the target tissue for the damaged part treatment composition in an amount therapeutically effective for repairing the damaged part of the target tissue; a method of treating cerebral infarction that includes administering the damaged part treatment composition to a cerebral infarct patient in an amount effective for repairing a damaged part of the brain; and a method of treating a CNS disease that includes administering, as a CNS disease treatment composition, the damaged part treatment composition to a CNS disease patient in a therapeutically effective amount.

Abstract: Disclosed are a piping member formed by using a propylene-based resin composition comprising 100 parts by mass of a propylene-ethylene random copolymer (A) having an ethylene content of 2 to 5%, a crystallization temperature of 86 to 105° C., a melt flow rate of 0.01 to 2.00 g/10 min and a molecular weight distribution of 3 to 8, and 1 to 15 parts by mass of a styrene-butadiene-base rubber (B) having a styrene content of 10 to 40% and a weight average molecular weight of 200,000 or more as essential components, a melt flow rate after kneading being from 0.01 to 2.00 g/10 min, characterized in that the propylene-based resin composition further comprising a hindered amine-based light stabilizer (C) having a weight average molecular weight of 2,000 or more in the amount of 0.1 to 1.

Abstract: An optical-branching unit enables suppression of deterioration of the transmission characteristic of a survivor signal without executing complex control of constant-power output. Optical-amplification means amplifies and supplies a input optical signal, and when not receiving the optical signal, amplifies and supplies amplified spontaneous emission that the optical-amplification means generates. Detection means detects whether the optical signal is input to the optical-amplification means. When the optical signal is not input to the optical-amplification means, control means sets gain that determines the magnitude of amplification in the optical-amplification means to a predetermined value greater than gain at the time the optical signal is input to the optical-amplification means.

Abstract: The present invention enables to prevent transmission characteristics from deteriorating due to the nonlinear effect in the transmission path caused by an increase in the channel power when a cable disconnection occurs.

Abstract: Disclosed is a valve comprising a body, which has a fluid inlet port and a fluid outlet port, a flow path formed therein communicated with the fluid inlet port and the fluid outlet port, and a valve seat formed in the flow path; and a valve body, which is attached to or detached from the valve seat by pivotal or vertical motion, thereby closing or opening the flow path; wherein at least the body is made of a polyphenylene ether-based resin composition containing a polyphenylene ether-based resin and a polystyrene-based resin as essential components. Another feature is that the polyphenylene ether-based resin composition has a tensile strength of 20 MPa or more and a tensile elastic modulus of 1,000 MPa or more under an atmosphere at 95° C.

Abstract: The present invention relates to a piping member molded from a resin composition comprising 50 to 120 parts by mass of a polystyrene-based resin relative to 100 parts by mass of a polyphenylene ether-based resin as essential components, and having a melt flow rate after kneading of 1.0 to 5.0 g/10 min. The present invention also relates to a piping member which has individual characteristics of a mold shrinkage factor from 0.5 to 0.8%, a time to breakage of 1,000 hours or more in a high-temperature creep characteristics test when molding is carried out in an atmosphere at 95° C. under an applied tensile load of 5.0 MPa, and a moisture content of the kneaded resin composition before molding of less than 250 ppm, and in which is further blended a styrene•butadiene-based rubber having a styrene content of 10 to 40% and a weight average molecular weight of 200,000 or more in an amount of 1 to 15 parts by mass relative to 100 parts by mass of the polyphenylene ether-based resin.

Abstract: Disclosed are a piping member formed by using a propylene-based resin composition comprising 100 parts by mass of a propylene-ethylene random copolymer (A) having an ethylene content of 2 to 5%, a crystallization temperature of 86 to 105° C., a melt flow rate of 0.01 to 2.00 g/10 min and a molecular weight distribution of 3 to 8, and 1 to 15 parts by mass of a styrene-butadiene-base rubber (B) having a styrene content of 10 to 40% and a weight average molecular weight of 200,000 or more as essential components, a melt flow rate after kneading being from 0.01 to 2.00 g/10 min, characterized in that the propylene-based resin composition further comprising a hindered amine-based light stabilizer (C) having a weight average molecular weight of 2,000 or more in the amount of 0.1 to 1.

Abstract: A transmission wavelength band in an optical transmission line is divided into a plurality of sub-bands and signal lights or an ASE dummy light is disposed per sub-band as a unit. The optical power of the ASE dummy light in each sub-band is controlled so as to realize the gain profile at a full implementation in the optical transmission line. While new signal lights are being added, the optical power of whole ASE dummy lights or the optical power of the ASE dummy lights in sub-bands adjacent to the sub-band in which the new signal lights are to be added is controlled while increasing the optical power of the new signal lights so that the transmission characteristics of the existing signal lights are not affected by the signal addition.

Abstract: A transmission wavelength band in an optical transmission line is divided into a plurality of sub-bands and signal lights or an ASE dummy light is disposed per sub-band as a unit. The optical power of the ASE dummy light in each sub-band is controlled so as to realize the gain profile at a full implementation in the optical transmission line. While new signal lights are being added, the optical power of whole ASE dummy lights or the optical power of the ASE dummy lights in sub-bands adjacent to the sub-band in which the new signal lights are to be added is controlled while increasing the optical power of the new signal lights so that the transmission characteristics of the existing signal lights are not affected by the signal addition.

Abstract: An optical signal generator comprises a light source to generate an optical carrier, a data modulator to modulate the optical carrier output from the light source with a transmission data, an optical phase modulator to modulate an optical phase of an output light from the data modulator in synchronization with the output light from the data modulator so as to emphasize one of sidebands, and an optical filter to remove harmonic components located outside the emphasized sideband out of an output light from the optical phase modulator.

Abstract: A feature of this invention is to realize a VSB modulation with a simple configuration.

Abstract: A card-like electronic apparatus comprises a core member an electronic assembly, an upper cover, and a lower cover. The core member includes a frame having an accommodation section for accommodating the electronic assembly, and a thick portion protruding from the frame. The electronic assembly is arranged in the accommodation section and includes a printed circuit board having a plurality of stational key contacts, an IC chip, an electronically-driven display unit, and a thin flat battery. The upper cover is arranged on one surface of said electronic assembly and includes a pressure-deformable sheet having movable key contacts aligned with said stational key contacts, key indicia aligned with the movable key contacts, and a display window aligned with the display unit. The lower cover includes a supporting plate, arranged over another surface of said electronic assembly, having a cutaway portion in which said thick portion is fitted, and which has high rigidity.