Abstract: There is provided a graphite crucible including a bottom part, a body part, a treatment part including an input port, and a gas discharge part that is closed at a lower end side and is opened at an upper end side of the body part. Since graphite is porous, at the time when graphite is eluted into an object to be treated or is consumed, a gas in the pores of a graphite crucible is released as air bubbles continuously into the molten object to be treated. Therefore, gasification of a gas dissolved inside the object to be treated can be enhanced, and bumping of the object to be treated can be prevented.

Abstract: A ceramic composite includes a substrate and a ceramic coating. The substrate includes a carbon fiber-reinforced carbon composite and has a surface on which a plurality of holes are provided. The ceramic coating is provided on the surface of the substrate and inside each of the plurality of holes.

Abstract: An associative memory that can reduce search errors is provided. An associative memory includes R distance/time conversion circuits DT1 to DTR. The R distance/time conversion circuits DT1 to DTR each include a NAND circuit 40 and N bit stages 41 to 4k. The N bit stages 41 to 4k delay a signal from the NAND circuit 40 by longer delay time as the distance between reference data and search data is greater and oscillate the signal. Among R oscillation signals output from the distance/time conversion circuits DT1 to DTR, the earliest changing oscillation signal is detected as an oscillation signal for the Winner row.

Abstract: A network system by the present invention can quickly detect viruses and does not easily become a new cause of vulnerability. A packet data comparator branches inputted packet data into three branches, and includes an additional pattern matching unit which compares the branched data with the stored data and performs matching with collation patterns stored in a rewritable storage area, a fixed pattern matching unit which compares the branched data with the stored data and performs the matching with a logical operation configured with known collation patterns, a notification packet matching unit which compares the branched data with the stored data and finds a notification packet, and an identity detection aggregation unit which aggregates results from the respective matching units. Moreover, a virus filter, a virus checker, and a secure network system are realized by using the present invention.

Abstract: A graphite material includes a plurality of graphite particles and a plurality of pores. The plurality of graphite particles and the plurality of pores form a microstructure. A ratio of an elastic modulus to a compression strength of the graphite material ranges from 109 to 138. Preferably, a ratio of a total area of the pores to a whole area of the graphite material in a cross-section of the graphite material ranges from 17.94% to 19.97%.

Abstract: A carbon-based composite material includes a graphite substrate and a carbon-based sheet. The carbon-based sheet is adhered to a surface of the graphite substrate with a heat-resistant adhesive. The carbon-based sheet has at least one of slits and grooves.

Abstract: A crucible holding member includes a mesh body having an axis direction. The mesh body includes a hollow, an opening, and a plurality of strands. The hollow is provided inside the opening. The opening faces toward one end of the axis direction. The plurality of strands include a plurality of carbon fibers and are woven diagonally with respect to the axis direction to provide the hollow and the opening. The plurality of strands are folded inwardly or outwardly at an edge of the opening, thereby providing a two-layered portion along the edge of the opening. A matrix is filled between the plurality of carbon fibers of the mesh body.

Abstract: The invention performs uniform chemical reactions with high efficiency by action of microwave onto reaction targets placed within a flow path along a center axis of a waveguide for transmission of microwave. The microwave chemical reaction device includes a circular waveguide for transmission of TM or TE mode microwave or a square waveguide for transmission of TE mode microwave and a flow path shielded from a space within the waveguide by a bulkhead of low microwave loss and coaxially extending along the center axis of the waveguide. Reaction targets to be subjected to chemical reactions are accommodated in the flow path and the microwave acts on the reaction targets within the flow path.

Abstract: A graphite material includes a plurality of graphite particles and a plurality of pores. The plurality of graphite particles and the plurality of pores form a microstructure. A ratio of an elastic modulus to a compression strength of the graphite material ranges from 109 to 138. Preferably, a ratio of a total area of the pores to a whole area of the graphite material in a cross-section of the graphite material ranges from 17.94% to 19.97%.

Abstract: A graphite material includes a plurality of graphite particles and a plurality of pores which form a microstructure. When a cross-section of the microstructure is observed with a scanning electron microscope, the number of the pores appearing on the cross-section is more than 250 or more per 6000 ?m2, an average area of the pores appearing on the cross-section is 5 ?m2 or less, and an average aspect ratio of the pores appearing on the cross-section is 0.55 or less.

Abstract: A high-purity carbon fiber-reinforced carbon composite includes a matrix, a carbon fiber, and sulfur. The matrix includes a crystalline carbon-based powder and glassy carbon. A content of sulfur in the high-purity carbon fiber-reinforced carbon composite is 5 ppm by mass or less.

Abstract: A ceramic composite includes a substrate and a ceramic coating. The substrate includes a carbon fiber-reinforced carbon composite and has a surface on which a plurality of holes are provided. The ceramic coating is provided on the surface of the substrate and inside each of the plurality of holes.

Abstract: A crucible holding member includes a mesh body having an axis direction. The mesh body includes a hollow, an opening, and a plurality of strands. The hollow is provided inside the opening. The opening faces toward one end of the axis direction. The plurality of strands include a plurality of carbon fibers and are woven diagonally with respect to the axis direction to provide the hollow and the opening. The plurality of strands are folded inwardly or outwardly at an edge of the opening, thereby providing a two-layered portion along the edge of the opening. A matrix is filled between the plurality of carbon fibers of the mesh body.

Abstract: A crucible holding member includes a mesh body, a matrix, and a carbonaceous layer. The mesh body has a cylinder shape or a basket shape and is formed by weaving a plurality of strands to be aligned diagonally with respect to an axis line of the mesh body. Each of the strands includes a plurality of carbon fibers. The matrix is filled in interstices between the plurality of carbon fibers. A carbonaceous layer is provided on an inner circumferential surface of the mesh body and has a flat surface to contact with an outer circumferential surface of a crucible.

Abstract: A crucible holding member includes a crucible supporting portion and an external fitting member. The crucible supporting portion includes a plurality of divided graphite pieces longitudinally divided in parallel to an axis line of the crucible supporting portion and radially arranged. The external fitting member is circularly formed and fitted on a body portion of the crucible supporting portion to bind the divided graphite pieces in a circumferential direction. The external fitting member is made of a C/C composite.

Abstract: A high-purity carbon fiber-reinforced carbon composite includes a matrix, a carbon fiber, and sulfur. The matrix includes a crystalline carbon-based powder and glassy carbon. A content of sulfur in the high-purity carbon fiber-reinforced carbon composite is 5 ppm by mass or less.

Abstract: A crucible holding member includes a mesh body which includes a plurality of strands woven each including a plurality of carbon fibers. The mesh body has a triaxial weave structure including a plurality of first strands, a plurality of second strands and a plurality of third strands. The plurality of first strands are provided in a first direction inclined at a first angle with respect to a central axis of the mesh body. The plurality of second strands are provided so that the plurality of first strands and the plurality of second strands are substantially symmetrical with respect to the central axis. The plurality of third strands are provided substantially along the central axis. A matrix is filled in interstices between the carbon fibers.

Abstract: A crucible holding member includes a hollow mesh body. The hollow mesh body has an upper end opening and a lower end opening, and includes a plurality of strands woven to be arranged diagonally to a central axis of the hollow mesh body. Each of the strands includes a plurality of carbon fibers. A matrix is filled in the interstices between the carbon fibers.

Abstract: A container holding member to hold a container includes a basket-shaped mesh body which has a closed-end. The basket-shaped mesh body is formed by weaving a plurality of strands to be arranged diagonally with respect to a central axis of the mesh body. Each of the strands includes a plurality of carbon fibers. A matrix is filled in interstices between the plurality of carbon fibers.

Abstract: A carbon-based composite material includes a graphite substrate and a carbon-based sheet. The carbon-based sheet is adhered to a surface of the graphite substrate with a heat-resistant adhesive. The carbon-based sheet has at least one of slits and grooves.