Abstract: A rearing cage unit includes an animal residential area defined by a floor, a ceiling, and a wall; an excrement collection area adjacent to the animal residential area; and an excretion sheet in the excrement collection area to receive excrement of the animal. At least one of the floor and the wall is made of a material including resin, and has an excretion hole to allow the excrement in the animal residential area to be discharged to the excrement collection area, and the excretion hole has a size that prevents four feet of the animal from entering the excretion hole. The excretion sheet faces the excretion hole.

Abstract: A rearing cage unit is where an animal is reared individually in an environment at least including a space environment. The rearing cage unit includes an animal residential area that is defined by a floor, a ceiling, and a wall; an excrement collection area that is provided adjacently to the animal residential area; and an excretion sheet that is provided in the excrement collection are to receive excrement of the animal. At least one of the floor and the wall is made of a material including resin, and has an excretion hole that allows the excrement in the animal residential area to be discharged to the excrement collection area, and that has a size that prevents four feet of the animal from entering the excretion hole. The excretion sheet is provided facing the excretion hole.

Abstract: A gravitational fluctuation stress loading method capable of causing a new acute stress reaction in a subject or a laboratory animal is provided. A gravitational fluctuation stress loading method including at least one first stress-loading step (S1) of placing a stress load on the subject or the laboratory animal by means of microgravity is provided.

Abstract: In order to provide an animal fixation device and an animal fixation method which are able to euthanize and fix the animal instantaneously and steadily, a columnar cage in which animal is arranged, a rotation mechanism configured to rotate the cage, an euthanizing gas supply mechanism configured to supply euthanizing gas into the cage, and a solid refrigerant supply mechanism configured to supply a solid refrigerant into the cage are provided. The euthanizing gas supply mechanism includes a gas manifold for euthanizing which is connected to the cage so that the euthanizing gas flows on an inner wall of the cage along a circumferential direction. The solid refrigerant supply mechanism includes a solid refrigerant supply line which is connected to the cage so as to be able to supply the solid refrigerant during rotation of the cage.

Abstract: In a culture method of the present invention, by culturing bone marrow stromal cells or mesenchymal stem cells under a pseudo micro-gravity environment generated by multi-axis rotation, bone marrow stromal cells or mesenchymal stem cells having an average cell size smaller than that before the culture are obtained. The bone marrow stromal cells or mesenchymal stem cells thus cultured are suitable as graft cells for a central nerve diseases therapy.

Abstract: A gravitational fluctuation stress loading method capable of causing a new acute stress reaction in a subject or a laboratory animal is provided. A gravitational fluctuation stress loading method including at least one first stress-loading step (S1) of placing a stress load on the subject or the laboratory animal by means of microgravity is provided.

Abstract: In a culture method of the present invention, by culturing bone marrow stromal cells or mesenchymal stem cells under a pseudo micro-gravity environment generated by multi-axis rotation, bone marrow stromal cells or mesenchymal stem cells having an average cell size smaller than that before the culture are obtained. The bone marrow stromal cells or mesenchymal stem cells thus cultured are suitable as graft cells for a central nerve diseases therapy.

Abstract: In order to provide an animal fixation device and an animal fixation method which are able to euthanize and fix the animal instantaneously and steadily, a columnar cage in which animal is arranged, a rotation mechanism configured to rotate the cage, an euthanizing gas supply mechanism configured to supply euthanizing gas into the cage, and a solid refrigerant supply mechanism configured to supply a solid refrigerant into the cage are provided. The euthanizing gas supply mechanism includes a gas manifold for euthanizing which is connected to the cage so that the euthanizing gas flows on an inner wall of the cage along a circumferential direction. The solid refrigerant supply mechanism includes a solid refrigerant supply line which is connected to the cage so as to be abele to supply the solid refrigerant during rotation of the cage.

Abstract: An electric connector provided with a plurality of connecting elements which electrically connect a first electrode group and a second electrode group opposite between two devices, wherein (a) first contact points in contact with electrodes of the first electrode group of the connecting elements correspond to intersection points on an a×b where a and b correspond to pitch size, and (b) second contact points in contact with electrodes of the second electrode group of the connecting elements form at least two groups.

Abstract: An electric connector provided with a plurality of connecting elements which electrically connect a first electrode group and a second electrode group opposite between two devices, wherein (a) first contact points in contact with electrodes of the first electrode group of the connecting elements correspond to intersection points on an a×b where a and b correspond to pitch size, and (b) second contact points in contact with electrodes of the second electrode group of the connecting elements form at least two groups.

Abstract: A contact sheet is provided including two insulative base sheets having a plurality of through-holes formed therethrough in an array pattern and a plurality of conductive contacts interposed between the insulative base sheets. Each contact includes a fixed part bonded to an end of a respective through-hole and an integral moving part contiguous with the fixed part. The moving part includes a contact portion formed as an elastic cantilever. Part of the moving part protrudes from one side of the base sheet inside the through-hole and the contact portion elastically extends from the other side of the base sheet. The total area of the through-hole and the fixed part of the contact is greater than a unit grid area formed by an arrangement of the terminals of an electronic device, and the length of the moving part, including the contact portion, substantially corresponds to the overall length of the through-hole.

Abstract: A method of manufacturing contact sheets is provided, including the steps of providing an electrically conductive sheet to form a conductive member. The conductive member includes a plurality of adjacent contact members joined by a plurality of linking portions. At least one base sheet is provided having a plurality of openings formed therein. The conductive member is positioned and secured to at least one surface of the base sheet such the contact members are positioned in the openings. The contact members are processed to (i) sever the linking portions from adjacent contact members and (ii) to form extending contact portions having a predetermined configuration. The position of the linking portions prior to severing is such that opposing severed faces of the linking portions are separated from each other and the contact members are electrically insulated from one another.

Abstract: A contact sheet is provided including two insulative base sheets having a plurality of through-holes formed therethrough in an array pattern and a plurality of conductive contacts interposed between the insulative base sheets. Each contact includes a fixed part bonded to an end of a respective through-hole and an integral moving part contiguous with the fixed part. The moving part includes a contact portion formed as an elastic cantilever. Part of the moving part protrudes from one side of the base sheet inside the through-hole and the contact portion elastically extends from the other side of the base sheet. The total area of the through-hole and the fixed part of the contact is greater than a unit grid area formed by an arrangement of the terminals of an electronic device, and the length of the moving part, including the contact portion, substantially corresponds to the overall length of the through-hole.

Abstract: A contact sheet is provided including two insulative base sheets having a plurality of through-holes formed therethrough in an array pattern and a plurality of conductive contacts interposed between the insulative base sheets. Each contact includes a fixed part bonded to an end of a respective through-hole and an integral moving part contiguous with the fixed part. The moving part includes a contact portion formed as an elastic cantilever. Part of the moving part protrudes from one side of the base sheet inside the through-hole and the contact portion elastically extends from the other side of the base sheet. The total area of the through-hole and the fixed part of the contact is greater than a unit grid area formed by an arrangement of the terminals of an electronic device, and the length of the moving part, including the contact portion, substantially corresponds to the overall length of the through-hole.

Abstract: A method of manufacturing contact sheets is provided, including the steps of providing an electrically conductive sheet to form a conductive member. The conductive member includes a plurality of adjacent contact members joined by a plurality of linking portions. At least one base sheet is provided having a plurality of openings formed therein. The conductive member is positioned and secured to at least one surface of the base sheet such the contact members are positioned in the openings. The contact members are processed to (i) sever the linking portions from adjacent contact members and (ii) to form extending contact portions having a predetermined configuration. The position of the linking portions prior to severing is such that opposing severed faces of the linking portions are separated from each other and the contact members are electrically insulated from one another.

Abstract: A contact sheet is provided including two insulative base sheets having a plurality of through-holes formed therethrough in an array pattern and a plurality of conductive contacts interposed between the insulative base sheets. Each contact includes a fixed part bonded to an end of a respective through-hole and an integral moving part contiguous with the fixed part. The moving part includes a contact portion formed as an elastic cantilever. Part of the moving part protrudes from one side of the base sheet inside the through-hole and the contact portion elastically extends from the other side of the base sheet. The total area of the through-hole and the fixed part of the contact is greater than a unit grid area formed by an arrangement of the terminals of an electronic device, and the length of the moving part, including the contact portion, substantially corresponds to the overall length of the through-hole.

Abstract: There are disclosed a method for producing a composite material composed of a dispersing agent and a matrix, and a composite material produced by the method. The matrix is formed by the steps of coating a metal-coated dispersing agent to form a metal-coated layer on the surface of the dispersing agent, filling the metal-coated dispersing agent in a jig prepared in a fixed shape, and then causing the reaction of the metal-coated layer with a molten Al by impregnating the metal-coated dispersing agent with the molten Al filled in the jig.

Abstract: A contact sheet for providing an electrical connection between two or more electronic devices each having spherical or planar terminals is provided. The contact sheet includes a plurality of insulative elastic substrate sheets having a plurality of through holes formed therethrough and a plurality of conductive elastic contacts each having a first end interposed and fixed between two of the insulative elastic substrate sheets at a fixed point proximate an edge of a respective through hole, and a second end arranged to bend as a cantilever extending from the fixed point. Each contact also includes a centrally located bending portion. The width of the contact continuously varies to be greater at portions of the contact which are subjected to larger stresses and less at positions of the contact which are subjected to smaller stresses when a load is applied to the second end of the contact.

Abstract: An aluminum-beryllium-silicon based alloy is disclosed, which comprises 5.0 to 30.0 mass % of Be, 0.1 to 15.0 mass % of Si and 0.1 to 3.0 mass %, the balance being Al and inevitable impurities. The alloy is useful for producing automobile engine parts, etc.

Abstract: A contact sheet for providing an electrical connection between two or more electronic devices each having spherical or planar terminals is provided. The contact sheet includes a plurality of insulative elastic substrate sheets having a plurality of through holes formed therethrough and a plurality of conductive elastic contacts each having a first end interposed and fixed between two of the insulative elastic substrate sheets at a fixed point proximate an edge of a respective through hole, and a second end arranged to bend as a cantilever extending from the fixed point. Each contact also includes a centrally located bending portion. The width of the contact continuously varies to be greater at portions of the contact which are subjected to larger stresses and less at positions of the contact which are subjected to smaller stresses when a load is applied to the second end of the contact.