Abstract: This embolic material is produced by a production method including a step for dispersing a mixture that contains a biodegradable polymer, an oil-based contrast agent, and a solvent in a hydrophilic liquid. The biodegradable polymer has a hydrophobic biodegradable polymer.

Abstract: Disclosed is an additive for imparting antimicrobial properties to a resin. The additive comprises a string polymer, at least one terminal of which has a positive charge, wherein the string polymer is a polymer containing structural units derived from a cationic polymerization initiator and a monomer containing a carbon-carbon double bond. By using this additive, it becomes possible to obtain an antibacterial resin molded body which can be prepared simply and inexpensively and which has high stability and safety.

Abstract: An embolic material contains at least one type of polymer and a liposoluble contrast medium. A method for producing an embolic material includes extruding a raw material that is in a molten state into a solvent, and cooling the raw material so as to solidify the raw material. The raw material contains a polymer and a liposoluble contrast medium.

Abstract: Disclosed is an additive for imparting antimicrobial properties to a resin. The additive comprises a string polymer, at least one terminal of which has a positive charge, wherein the string polymer is a polymer containing structural units derived from a cationic polymerization initiator and a monomer containing a carbon-carbon double bond. By using this additive, it becomes possible to obtain an antibacterial resin molded body which can be prepared simply and inexpensively and which has high stability and safety.

Abstract: An embolic material contains at least one type of polymer and a liposoluble contrast medium. A method for producing an embolic material includes extruding a raw material that is in a molten state into a solvent, and cooling the raw material so as to solidify the raw material. The raw material contains a polymer and a liposoluble contrast medium.

Abstract: An echo cancellation device includes: a full-band echo canceller that generates a pseudo-echo signal; a downsample processor that downsamples a received signal and extracts a low-band component delayed by a delay amount D1; a delay controller that delays the low-band component by a delay amount D2; a delay controller that delays an output signal of the delay controller by a delay amount D3; a low-band echo canceller that generates a pseudo-echo signal delayed by a delay amount D1+D2; and an upsample processor that upsamples the low-band pseudo-echo signal to generate a full-band pseudo-echo signal delayed by the delay amount 2D1+D2. The delay controllers control the delay amounts D2 and D3 such that a tap length LA satisfies a condition of LA?2D1+D2=D2+D3, the tap length LA indicating a response time of the adaptive filter in the full-band echo canceller.

Abstract: Including an invariant interval deciding unit (1) to decide whether operation of a detection target is in an invariant interval; a correction parameter generator (3) to generate, when decided that the operation is in the invariant interval, a correction parameter for correcting an observation signal in a time interval outside the invariant interval from an observation signal obtained from the operation sound in the invariant interval; a feature extracting unit (4) to extract, when decided that the operation is in the time interval outside the invariant interval, a feature value of the operation sound of the detection target in the time interval outside the invariant interval from the observation signal of the detection target in the time interval outside the invariant interval and the correction parameter; and an abnormal sound deciding unit (5) to decide from the feature value extracted whether an abnormal sound occurs in the detection target.

Abstract: An echo cancellation device includes: a full-band echo canceller that generates a pseudo-echo signal; a downsample processor that downsamples a received signal and extracts a low-band component delayed by a delay amount D1; a delay controller that delays the low-band component by a delay amount D2; a delay controller that delays an output signal of the delay controller by a delay amount D3; a low-band echo canceller that generates a pseudo-echo signal delayed by a delay amount D1+D2; and an upsample processor that upsamples the low-band pseudo-echo signal to generate a full-band pseudo-echo signal delayed by the delay amount 2D1+D2. The delay controllers control the delay amounts D2 and D3 such that a tap length LA satisfies a condition of LA ?2D1+D2=D2+D3, the tap length LA indicating a response time of the adaptive filter in the full-band echo canceller.

Abstract: The present invention is a method for producing a composite including a matrix and a dispersed material dispersed in the matrix. The method includes introducing a raw material for dispersed material which constitutes a dispersed material into a fluid including a melt of a raw material for matrix which constitutes a matrix or a solution containing a raw material for matrix by a vapor deposition method, to obtain a composite.

Abstract: The present invention is a method for producing a composite including a matrix and a dispersed material dispersed in the matrix. The method includes introducing a raw material for dispersed material which constitutes a dispersed material into a fluid including a melt of a raw material for matrix which constitutes a matrix or a solution containing a raw material for matrix by a vapor deposition method, to obtain a composite.

Abstract: A method of preparing a polymer having a tapered block copolymer structure. The method comprises polymerizing a first olefin monomer and a different second olefin monomer in the presence of a catalyst supporting living or quasi-living polymerization. In certain embodiments, the catalyst comprises two neutral metal complexes. In preferred embodiments, a tapered block copolymer structure is formed by adding one monomer in a single batch at the start of the polymerization reaction, and adding a second monomer throughout the course of the reaction. The present invention also provides polymers having one or more tapered block copolymer sections, and compositions based on these polymers.

Abstract: A method of preparing a polymer having a tapered block copolymer structure. The method comprises polymerizing a first olefin monomer and a different second olefin monomer in the presence of a catalyst supporting living or quasi-living polymerization. In certain embodiments, the catalyst comprises two neutral metal complexes. In preferred embodiments, a tapered block copolymer structure is formed by adding one monomer in a single batch at the start of the polymerization reaction, and adding a second monomer throughout the course of the reaction. The present invention also provides polymers having one or more tapered block copolymer sections, and compositions based on these polymers.

Abstract: An imaging system for use with a patrol car includes at least one image pick-up device, a memory device, and a controller. The controller executes instructions to store image information captured by the image pick-up device in the memory device. Various operating modes of the imaging system may be selected based in part upon the operating conditions of the patrol car. Recording and transmitting of the image information may be performed manually or automatically, depending upon the operator of the system and the conditions of the patrol car. Both the interior of the patrol car (i.e., rear seat), and the environment outside of the patrol car (i.e., to the front and rear of the vehicle), may be recorded by the image pick-up systems. Additionally, automatic control such as 360° views upon reaching a desired destination may be performed based upon the configuration of the imaging system.

Abstract: An audio signal decoding and encoding device has a decoding device having a stream separating circuit, a control signal decoding circuit for outputting blocking information, a decoding and dequantizing circuit, a frequency-time converting circuit, and an information multiplexing circuit for multiplexing a time domain signal and the blocking information and an encoding device having an information separating circuit for separating the time domain signal and the blocking information from a multiplex signal, a time-frequency converting circuit, a psycho-acoustic model circuit, a control signal encoding circuit, a quantizing and encoding circuit, a stream multiplexing circuit, and an output control circuit for controlling output timing of an encoded stream on the basis of the blocking information so that the processing delay time within the device becomes fixed.

Abstract: An audio signal encoding apparatus is provided which is capable of preventing deterioration in the objective characteristics of a signal to be encoded without using parameters from a psychoacoustic model generated based on human auditory characteristics or by replacing such parameters with those by which the signal can be effectively quantized in cases where the width of a frequency band in which frequency component such as a sine wave of the signal concerned exists is narrow. The audio signal encoding apparatus includes a psychoacoustic model section 1, an MDCT processing section 2 and an iterative loop processing section 3. The psychoacoustic model section 1 includes an FFT operation section 11, a block type determination section 12 and an SMR operation section 13. The iterative loop processing section 3 includes an allowable error amount calculation section 31, a bit amount/error amount control section 32, a normalization processing section 33, a quantization section 34 and a Huffman encoding section 35.

Abstract: An audio signal encoding apparatus is provided which is capable of preventing deterioration in the objective characteristics of a signal to be encoded without using parameters from a psychoacoustic model generated based on human auditory characteristics or by replacing such parameters with those by which the signal can be effectively quantized in cases where the width of a frequency band in which frequency component such as a sine wave of the signal concerned exists is narrow. The audio signal encoding apparatus includes a psychoacoustic model section 1, an MDCT processing section 2 and an iterative loop processing section 3. The psychoacoustic model section 1 includes an FFT operation section 11, a block type determination section 12 and an SMR operation section 13. The iterative loop processing section 3 includes an allowable error amount calculation section 31, a bit amount/error amount control section 32, a normalization processing section 33, a quantization section 34 and a Huffman encoding section 35.

Abstract: A light transmitting tube 1, which can significantly reduce the loss of light at a bent portion, comprises a tubular cladding 3 and a solid core 2 made of material having reflection index higher than that of the material for the tubular cladding 3. The cladding 3 has rigidity higher than the core 2. The core 2 and the cladding 3 are not bonded to each other. As the light transmitting tube 1 is bent, an air layer 4 is appears between the core 2 and the cladding 3.

Abstract: In each of oil-retaining sheets, an end edge and side edges of a recess are separated from each other. The side edges are formed into tongue portions covered by first anti-wear meshes which prevent loosing of the side edges, and these tongue portions are maintained in sliding contact with their corresponding side walls of a guide portion of a guide rail. The end edge is covered by a second anti-wear mesh which prevents loosing of the end edge, and the second anti-wear mesh is maintained in sliding contact with an end wall of the guide portion. A gap is also formed to maintain the tongue portions and the second anti-wear mesh out of contact with each other.

Abstract: A branched type light transmission system including a plurality of light transmission tubes each comprising a flexible cylindrical cladding and a transparent core filled in the cladding and which has a higher index of refraction than the cladding. The core is made of an elastically deformable solid substance, and the plurality of light transmission tubes are bundled together at the light-incident ends thereof with a binding member and thus applied with an external pressure to deform each light transmission tube in order to minimize the clearance between the light transmission tubes.

Abstract: In an optical waveguide tube comprising a tubular cladding filled with a solid core having a higher refractive index than the cladding, a light transmissive window member is disposed in close contact with at least the end face of the core on a light incident side for protecting the core end face from thermal influence and contamination. Means disposed around the cladding and the window member for securing the window member to the cladding may be a tape wrapped around them or a heat shrinkable sleeve or a ferrule. Alternatively, a ferrule surrounding the outer periphery of the cladding at each end is fastened for securing the cladding to the core at each end for preventing the core from projecting out of the cladding. The ferrule may have a collar disposed in abutment with the core end face.