Abstract: A semiconductor device useable as an electromagnetic isolator. The device has a semiconductor substrate epitaxial with a layer of metal, the latter deposited so as to generate a residual magnetic flux. A waveguiding structure is disposed transverse to the flux effective to cause electromagnetic signals propagating in the waveguiding structure to be attenuated a different amount depending on the direction of propagation. The waveguiding structure is preferably a seminconductor layer deposited epitaxially with the substrate in a channel in the metal.

Abstract: An improved metal, alloy, or intermetallic matrix composite containing carbon reinforcing fibers is formed. The carbon reinforcing fibers are protected from interaction with the matrix material by an inner and an outer barrier layer. The outer layer is any one of the group of stable, non-reactive ceramic materials used to protect fibers, and the inner layer is a ductile, low density, oxygen desorbing rare earth metal. The carbon fibers are particularly useful in forming composites with a titanium aluminide matrix.

Abstract: A passivating or insulating layer is described for semiconductor substrat The passivating layer is of the formula Zn.sub.1-x-y M.sub.x Q.sub.y Se:D where 0.ltoreq.x.ltoreq.1, 0.ltoreq.y.ltoreq.1, M and Q represent different specified elements and D represents a dopant. It is prefered that M and Q are Fe or Mn. The substrate is preferably a III-V semiconductor compound. The devices are capable of rapid switching among other uses.

Abstract: A method for making sterile liposome-encapsulated hemoglobin having an oxn carrying capacity of 20 vol/%, a half life of 15-20 hours as measured in mice, with the liposome made from chloroform, HSPC, cholesterol, negatively charged DMPG and alpha-tocopherol.

Abstract: Felted cellulosic sheet material is treated with a solution of an alkali al borohydride in order to improve and stabilize its strength and brightness. A subsequent wash with deionized water or preferably an aqueous solution containing an alkaline earth metal hydroxide, carbonate, or bicarbonate further improves the stability of the brightness and strength of felted cellulosic sheet material. The washing of cellulosic sheet material is most efficiently accomplished in an apparatus providing a means to add a metered amount of alkaline earth metal hydroxide, carbonate, or bicarbonate to a continuously flowing stream of wash medium.

Abstract: A web handling device, such as a high-speed printing press, is provided with a jam prevention means comprising stripper fingers equipped with a shut down means which prevents damage to the press if a blockage occurs during the stripping operation.

Abstract: An apparatus is provided which can assist in determining the presence or absence of a venous obstruction such as occurs in hemorrhage or inflammatory conditions affecting the veins by measuring the precentage change in electrical impedance of the veins caused by their temporary forced blockage. This measured change in impedance, normalized with respect to a baseline impedance measured during normal respiration, provides a sensitive index which is indicative of the presence or absence of a clot or constriction.

Abstract: This invention relates to solutions of selected organo-metallic compounds ssolved in an organic solvent which are useful for deacidifying a cellulose fiber paper. The paper is treated by means well known in the art, such as dipping or spraying. The organo-metallic compounds useful in this invention are compounds which may be rapidly hydrolyzed to an alkaline material such as lower alkyl compounds of lithium, aluminum, magnesium, gallium, zinc, and mixtures of these compounds. The organic solvent is a liquid which will not react with the organo-metallic compound, dissolve inks, or cause discoloration of other materials usually found in and around printed matter. After the paper is impregnated with the solution the organo-metallic compound remaining on the paper is hydrolyzed to an alkaline material.

Abstract: A method of deacidifying paper wherein the paper has a substantially cellulose fiber base or substrate by exposing the paper to the vapors of a volatile organometallic compound and subsequently decomposing said compound to a base or alkaline material in situ. The treated material is usually first dried in vacuo and exposed under anhydrous or nearly anhydrous conditions to the organic-metallic compound. The method has the advantage of being able to treat large quantities of material at any one time.

Abstract: A composition for use in Deacidification of Paper, which comprises 0.1 to 20% by weight of methyl magnesium carbonate in an organic solvent, where the solvent is not harmful to the paper.