Abstract: The participant terminal 80 includes imaging means 81 for shooting video of the participant who uses the participant terminal 80, frequency measurement means 82 for measuring the number of nods of the participant from the shot video, and action information transmission means 83 for transmitting action information that information of the participant is associated with the number of nods to the server 70. The server 70 includes transmission means 71 for transmitting the action information to the speaker terminal 90. The speaker terminal 90 includes participant output means 91 for outputting the information of the participant in order according to the number of nods included in the action information.

Abstract: The casting mold is provided with: the molding wall portion forming the internal space; and the filling ports that open to the molding wall portion and that allow the molten metal to flow into the internal space. In this configuration the channel center lines of the filling ports intersect the surface of the heater at the non-perpendicular contact angle.

Abstract: The casting mold is provided with: the molding wall portion forming the internal space; and the filling ports that open to the molding wall portion and that allow the molten metal to flow into the internal space. In this configuration the channel center lines of the filling ports intersect the surface of the heater at the non-perpendicular contact angle.

Abstract: A ball-grid array connector structure for an electronic package in which the ball pitch can be reduced to increase the packaging density has a plastic substrate having at least one hollow through-hole and an electrode covering the wall of the through-hole and forming an electrode pad surrounding the through-hole on each surface of the substrate. A metallic ball is joined, either directly or through a solder or a combination of a metallic bump and a solder, to the electrode pad on at least one surface of the substrate at the position of the through-hole. The connector structure can be formed either by sealing an open end of the through-hole on the side to which the ball is not joined, or increasing the pressure within the through-hole by a pressure-control mechanism, before the through-hole is blocked by reflowing the ball itself or the metallic bump or solder used to connect the ball.

Abstract: A semiconductor package and a semiconductor device comprises a metal bump to be placed between a metal pad formed on a package body of a substantially plate-like shape and an interconnecting solder for connecting a metal ball thereto, wherein the melting point of the metal bump is higher than that of the interconnecting solder, thereby enhancing a fatigue resistance against temperature fluctuations as well as improving a reliability around the interconnecting portion.

Abstract: A method for producing ceramic dielectrics containing a water soluble metal acid or salt includes making a mixture by kneading a water soluble metal acid or salt, particulates, sintering auxiliaries and water, mixing the mixture with a binder and plasticizer to form a slurry, and forming a sheet from the slurry by drying and sintering.

Abstract: A driving control apparatus for controlling an object by a fuzzy inference comprises: a driving control object; a driver to drive the object; a first detector to detect position information of the object and to detect a remained distance from a movement target position of the object; a second detector to detect a speed corresponding to the remained distance detected by the first detector; and a controller to control the driver by the following fuzzy inference rules by using the remained distance and the speed:Rule 1: IF remained distance=(large) THEN (-.DELTA.E)Rule 2: IF speed=(high) THEN (-.DELTA.E) [(+.DELTA.E) or (-.DELTA.E) denotes a fuzzy set to express a drive information deviation amount.

Abstract: A metal powder of improved quality is obtained by causing molten metal held in a vessel to flow out in a smooth stream through an outlet formed at the bottom of the vessel, throwing the jet of an atomizing medium consisting of nonpolar solvents such as mineral oils, or animal and vegetable oils against the stream of molten metal thereby atomizing the molten metal, separating and recovering the produced metal powder and the used atomizing medium by means of a fluidized bed furnace, and if necessary subjecting the metal powder to decarburization and softening anneal. In this production, the molten metal, the path for the flow of the molten metal, and the produced metal powder are substantially insulated from the atmospheric air.

Abstract: A process for producing alloy steel powder, particularly, low-oxygen, low-carbon alloy steel powder is disclosed. The process comprises: preparing molten steel which contains at least one easily oxidizable element selected from the group consisting of chromium, manganese, vanadium, niobium, boron and silicon; atomizing said molten steel by means of an atomizing agent containing a non-oxidizing medium to provide as-atomized alloy steel powder containing 0.2% by weight or less of oxygen and 0.1% by weight or more of carbon; decarburizing the resulting powder by maintaining it in an atmosphere containing at least H.sub.2 and H.sub.2 O gases under specified conditions; and cooling the thus decarburized alloy steel powder to room temperature in an inert or reducing atmosphere.

Abstract: Metal powder having low oxygen and carbon contents and suitable for powder metallurgy may be obtained by using, as an atomizing medium, a special composition containing an alcohol having 1-4 carbon atoms and water as its essential components when impinging the atomizing medium against a molten metal in a state isolated from the ambient air to produce the metal powder.

Abstract: An oil-atomized low-alloy steel powder having improved compressibility, compactibility and hardenability is disclosed. The steel powder has the chemical composition: C: no greater than 0.02%, Mn: 0.3-2.0%, oxygen: no greater than 0.10%, one or more of Cr: 0.1-2.0%, Mo: 0.05-1.0%, Ni: 0.1-2.0%, Cu: 0.2-2.0%, V: 0.03-0.5% and Nb: 0.05-0.5%, and the balance substantially iron.

Abstract: A metal powder of improved quality is obtained by causing molten metal held in a vessel to flow out in a smooth stream through an outlet formed at the bottom of the vessel, throwing the jet of an atomizing medium consisting of nonpolar solvents such as mineral oils, or animal and vegetable oils against the stream of molten metal thereby atomizing the molten metal, separating and recovering the produced metal powder and the used atomizing medium by means of a fluidized bed furnace, and if necessary subjecting the metal powder to decarburization and softening anneal. In this production, the molten metal, the path for the flow of the molten metal, and the produced metal powder are substantially insulated from the atmospheric air.