Abstract: A portable terminal configured to estimate the number of used wet towels, or oshiboris, stored in a collection box, including: an information receiving unit for receives pre-collection store information; a photographing unit for capturing an image of used oshiboris stored in a collection box from above; a learning model storing unit for storing a learning model trained by a neural network; an image acquiring unit for acquiring an image for estimation photographed by the photographing unit. The estimating unit estimates a number of used oshiboris from the image for estimation acquired by the image acquiring unit, with the learning model stored in the learning model storing unit, by the neural network. The display unit displays an estimation result estimated by the estimating unit. The information transmitting unit transmits post-collection store information added the estimation result to the pre-collection store information received by the information receiving unit to the core system.

Abstract: A portable terminal configured to estimate the number of used wet towels, or oshiboris, stored in a collection box, including: an information receiving unit for receives pre-collection store information; a photographing unit for capturing an image of used oshiboris stored in a collection box from above; a learning model storing unit for storing a learning model trained by a neural network; an image acquiring unit for acquiring an image for estimation photographed by the photographing unit. The estimating unit estimates a number of used oshiboris from the image for estimation acquired by the image acquiring unit, with the learning model stored in the learning model storing unit, by the neural network. The display unit displays an estimation result estimated by the estimating unit. The information transmitting unit transmits post-collection store information added the estimation result to the pre-collection store information received by the information receiving unit to the core system.

Abstract: A method for culturing cells by which the diameter of cell aggregates can be controlled, and by which a large amount of cells can be obtained, a cell aggregate obtained by the method, a cell aggregation control agent, and a medium containing the cell aggregation control agent, are provided. A method for culturing cells by suspension culture, which method includes an aggregation control step of adding a substance that inhibits a cell adhesion molecule(s) of the cells to a medium to control cell aggregation of the cells, and the like are provided.

Abstract: A method for producing cell aggregates includes culturing cells while suspending the cells in a liquid culture medium comprising a lysophospholipid. A composition includes a lysophospholipid, wherein the composition is a liquid culture medium or a composition added to a liquid culture medium.

Abstract: An object is to provide a method of differentiating pluripotent stem cells. A method of differentiating pluripotent stem cells, the method comprising steps of: seeding the pluripotent stem cells in a container provided with seeding medium! differentiating the pluripotent stem cells in the container; transferring the pluripotent stem cells from the container into a chamber of a bioreactor when the pluripotent stem cells reach their progenitor stage; and maturing the pluripotent stem cells in the chamber, wherein a floor of the chamber includes a concave and a convex, fluid of medium flows in the chamber and oxygen is supplied into the chamber.

Abstract: A method for culturing cells by which the diameter of cell aggregates can be controlled, and by which a large amount of cells can be obtained, a cell aggregate obtained by the method, a cell aggregation control agent, and a medium containing the cell aggregation control agent, are provided. A method for culturing cells by suspension culture, which method includes an aggregation control step of adding a substance that inhibits a cell adhesion molecule(s) of the cells to a medium to control cell aggregation of the cells, and the like are provided.

Abstract: A method for producing cell aggregates includes culturing cells while suspending the cells in a liquid culture medium comprising a lysophospholipid. A composition includes a lysophospholipid, wherein the composition is a liquid culture medium or a composition added to a liquid culture medium.

Abstract: A matrix generation apparatus includes a tree structure generation part, a root processing part, and a node processing part. The tree structure generation part generates a binary tree T which expresses a logical formula F. The root processing part generates a matrix corresponding to the type of the element expressed by the root of the binary tree T, among the elements of the logical formula F. The node processing part sequentially selects nodes, other than the root, of the binary tree T, performs an operation corresponding to the type of the element expressed by each node having a child node, on the matrix M, and associates a variable being the element expressed by each node not having a child node, with one row of the matrix. The node processing part, after having selected the nodes of the binary tree T, outputs the matrix M and a mapping ?. The mapping ? is information indicating variables associated with the respective rows of the matrix M.

Abstract: e and n are public information and d is private information. An electronic signature is generated based on a calculated value of e×d mod n. A signature generation apparatus includes a random number generation unit, a first calculation unit, a second calculation unit, and a signature generation unit. The random number generation unit generates a random number r. The first calculation unit calculates s1=r×n. The second calculation unit calculates s2=s1+e. The signature generation unit calculates s3=s2×d mod n and outputs s3 as the calculated value of e×d mod n. The signature generation apparatus can thereby generate the above electronic signature securely against differential power attacks.

Abstract: A scalar multiplication unit references a t-bit sequence representing a random number k one bit at a time from the most significant bit, and upon each referencing, sets in a work variable R[0] a value obtained by doubling a specific point G on an elliptic curve set in a scalar multiplication variable R, and sets in a work variable R[1] a value obtained by adding the specific point G to the work variable R[0]. The scalar multiplication unit 122 sets the work variable R[0] in the scalar multiplication variable R if the value of the referenced bit is 0, and sets the work variable R[1] in the scalar multiplication variable R if the value of the referenced bit is 1. A scalar multiple point output unit 123 outputs as a scalar multiple point kG a value obtained by subtracting a constant value 2tG from the scalar multiplication variable R.

Abstract: A semiconductor module is provided which includes a semiconductor unit which is made by a resin mold. The resin mold has formed therein a coolant path through which a coolant flows to cool a semiconductor chip embedded in the resin mold. The resin mold also includes heat spreaders, and electric terminals embedded therein. Each of the heat spreaders has a fin heat sink exposed to the flow of the coolant. The fin heat sink is welded to a surface of each of the heat spreaders through an insulator, thus minimizing an electrical leakage from the heat spreader to the coolant.

Abstract: A method for culturing hepatocytes, wherein hepatocytes embedded in an extracellular matrix is placed on a gas-permeable membrane and the hepatocytes are cultured while being supplied with oxygen from the gas-permeable membrane side. By this, the polarity in the hepatocytes can be induced and a bile canaliculus can be formed in a short period of time. Further, the formed polarity can be maintained for a longer period.

Abstract: A switching module includes a series-connected unit of a first flowing restriction element and a second flowing restriction element, the first flowing restriction element having an opening and closing function of opening and closing a flowing path of current, and the second flowing restriction element having at least one of a rectifying function of restricting the direction in which current flows and the opening and closing function, and a snubber circuit connected to the series-connected unit in parallel. A first wiring line connecting between the first flowing restriction element and the snubber circuit, a second wiring line connecting between the second flowing restriction element and the snubber circuit, a third wiring line connecting between the first flowing restriction element and the second flowing restriction element, the first flowing restriction element, the second flowing restriction element, and the snubber circuit are formed substantially integrally with each other by using an insulator.

Abstract: A semiconductor module is provided which includes a semiconductor unit which is made by a resin mold. The resin mold has formed therein a coolant path through which a coolant flows to cool a semiconductor chip embedded in the resin mold. The resin mold also includes heat spreaders, and electric terminals embedded therein. Each of the heat spreaders has a fin heat sink exposed to the flow of the coolant. The fin heat sink is welded to a surface of each of the heat spreaders through an insulator, thus minimizing an electrical leakage from the heat spreader to the coolant.

Abstract: A switching device includes a flowing restriction element, a conductor and a snubber resistor. The flowing restriction element has an opening and closing function to open and close a flowing path of an electric current. The conductor is connected to the flowing restriction element. The snubber resistor is connected to the flowing restriction element and constitutes a snubber circuit. The snubber resistor is disposed along the conductor.

Abstract: A scalar multiplication unit references a t-bit sequence representing a random number k one bit at a time from the most significant bit, and upon each referencing, sets in a work variable R[0] a value obtained by doubling a specific point G on an elliptic curve set in a scalar multiplication variable R, and sets in a work variable R[1] a value obtained by adding the specific point G to the work variable R[0]. The scalar multiplication unit 122 sets the work variable R[0] in the scalar multiplication variable R if the value of the referenced bit is 0, and sets the work variable R[1] in the scalar multiplication variable R if the value of the referenced bit is 1. A scalar multiple point output unit 123 outputs as a scalar multiple point kG a value obtained by subtracting a constant value 2tG from the scalar multiplication variable R.

Abstract: e and n are public information and d is private information. An electronic signature is generated based on a calculated value of e×d mod n. A signature generation apparatus 100 includes a random number generation unit 103, a first calculation unit 111, a second calculation unit 112, and a signature generation unit 121. The random number generation unit 103 generates a random number r. The first calculation unit 111 calculates s1=r×n. The second calculation unit 112 calculates s2=s1+e. The signature generation unit 121 calculates s3=s2×d mod n and outputs s3 as the calculated value of e×d mod n. The signature generation apparatus 100 can thereby generate the above electronic signature securely against differential power attacks.

Abstract: The invention is directed to methods for the propagation or cultivation of cells including preparing a cell culture substrate, wherein the cell culture substrate includes a substrate and a layer formed by surface modification. The layer includes a polymer containing an amino group. The polymer is produced by reacting a polymer represented by formula (II): with a polymer having at least one amino group, —NH2, capable of forming a Schiff base in a monomer of formula (II), thereby forming a polymer layer constituting the layer formed by surface modification. “n” in Formula (II) is 0 or a positive integer, and m is a positive integer. n and m represent the degree of polymerization. Formula (II) is formed by chemical vapor deposition of formyl[2.2]paracyclophane. The methods further include providing cells in a medium; inoculating the cells onto the cell culture substrate; and culturing the cells, wherein the cells adhere to the cell culture substrate.

Abstract: A shield machine including an excavator capable of excavating tunnels of various cross-sectional shapes, the excavator including: a rotary drum supported at a front end side portion of a shield machine main body to be rotatable around a first center axis; a cutter supporting frame supported by the rotary drum to be rotatable around a second center axis; a rotary cutter head supported by the cutter supporting frame to be rotatable around a third center axis and including a plurality of cutter bits on a surface thereof; a rotary auxiliary cutter head supported by the rotary drum to be rotatable around a fourth center axis; and first, third, and fourth rotating mechanisms, and a swinging drive mechanism configured to respectively cause the rotary drum, the rotary cutter head, the rotary auxiliary cutter head, and the cutter supporting frame to independently rotate.

Abstract: A method for culturing hepatocytes, wherein hepatocytes embedded in an extracellular matrix is placed on a gas-permeable membrane and the hepatocytes are cultured while being supplied with oxygen from the gas-permeable membrane side. By this, the polarity in the hepatocytes can be induced and a bile canaliculus can be formed in a short period of time. Further, the formed polarity can be maintained for a longer period.