Abstract: In a casting sand reclamation system and a casting sand reclamation method, an appropriate reclamation process is performed according to the properties of casting sand to improve the reclamation accuracy and the reclamation yield. Capacitance measuring devices 70 and 71 that measure the capacitance of casting sand 1 (recovered sand 1a or reclamation sand 1b) are arranged on an upstream side and a downstream side of a batch-type polishing device 7, and feedback control is performed based on the measurement results of the capacitances by these capacitance measuring devices 70 and 71. A sorting device 10 sorts the recovered sand 1a polished by the polishing device 7 into a sand grain component (reclamation sand) and a fine grain component (containing a binder), and has a capacity N times that of the polishing device 7.

Abstract: An apparatus for stretching the span of a hand includes a base member and a pair of spaced pegs; one peg for engaging the first metacarpal and one peg for engaging the fifth metacarpal of the hand. The pegs are mounted for relative adjustment in the base member. More particularly, the peg for engaging the first metacarpal is received in a straight guide way or slot extending through the base member. The second peg for engaging the fifth metacarpal is received in an arcuate guide track or slot extending through the base member in an arc about the first peg. Graduations are provided to identify relative positions along the guide way and guide track. A method for stretching the span of a hand includes engaging the hand between the first and second metacarpals with a first peg and between the fourth and fifth metacarpals at a spaced stretching distance with a second peg. Next is repeatedly pressing the hand against the pegs to provide stretching.

Abstract: A heat treatment system is fabricated from a loading section, a heat treatment section and a outlet section integrated with one another, and the heat treatment section comprises a transfer mechanism provided between the loading section and the outlet section for successively transferring silicon wafers, a heating unit provided along the transfer mechanism for heating the silicon wafers, and a cooling unit provided along the transfer mechanism and closer to the outlet section than the heating section for cooling the silicon wafers so that the silicon wafers are continuously treated with heat for annihilating thermal donors produced from oxygen during the growth of a silicon crystal without any handling by operators.

Abstract: A method of resistance heating using a graphite container having a graphite body and a pyrolytic boron nitride coating in which a metal charge of predetermined weight is deposited over the coating and the container is heated by the application of a variable source of electrical power to cause the metal charge to fully evaporate in a short interval of time of less than two minutes with the heat cycle controlled to provide a cool down period in each cycle of applied power and with a new metal charge introduced upon completion of each heat cycle in a semi-continuous fashion.

Abstract: A process for selectively forming NMOS/PMOS/CMOS integrated circuits and for selectively incorporating any or all of lightly doped drain-source (LDD) regions, sidewall gate oxide structures, and guard band regions.

Abstract: A method and mechanism for heat treating a pulverulent comminuted raw material in the process of making cement including preheating the material, passing the material through a first reaction zone, supplying a first fuel supply to the first zone for supplying thermal energy for carrying out the calcination reaction, separating the material from the hot gases received from the first reaction zone and delivering the material to a second reaction zone to which is supplied a second fuel supply for supplying thermal energy for the calcination reaction in the second zone and separating the material from the hot gases from the second zone and delivering the material to a sintering kiln and then passing it to a cooler with the air from the cooler supplied to support combustion in the first zone, and with the arrangement preferably arranged in two parallel flows with each flow path containing the preheater, and the reaction zones and separators with the material flows combining just as they enter the sintering zone.

Abstract: An electronic dryer for grain or other materials which includes a gas burner and one or more blowers for providing heated air into a plenum chamber from which such heated air passes through the material to be dried between two spaced walls formed with openings such that the heated air can pass therethrough for drying the material. Temperature sensing means in the form of an elongated member such as a wire is mounted within the plenum chamber so as to detect the plenum chamber temperature and to control the duty cycle of the burner and second and third temperature sensing means are mounted between the spaced walls adjacent the inlet and outlet areas of the heated air so as to detect and determine the moisture content in the materials to be dried. These sensors are also elongated and detect the temperature at many portions of the dryer so as to more accurately determine the temperature.