Abstract: Disclosed is a process for depositing and immobilizing an enzyme by causing an aqueous dispersion of said enzyme to flow through an inert, inorganic, porous, sorptive, dimensionally stable, fluid permeable supporting matrix to form a biologically active composite. The matrix is sufficiently porous to be enzyme and substrate permeable. Preferably, the supporting matrix is ceramic and is formed by compacting and sintering refractory oxide powders such as alumina.

Abstract: Disclosed are B.sub.2 O.sub.3 -containing glass-ceramic bodies made by in situ thermal crystallization of glasses and useful as a host for diffusion doping of semiconductors by the vapor phase transport of B.sub.2 O.sub.3 to the semiconductor from the glass-ceramic which in mole percent consists essentially of over 40 and up to 60 SiO.sub.2, 10 to 30 Al.sub.2 O.sub.3, 20 to 40 B.sub.2 O.sub.3 and 3 to 20 alkaline earth oxides including 1 to 15 BaO wherein the ratio of Al.sub.2 O.sub.3 to alkaline earth oxides is from 1.5 to 4.

Abstract: This invention relates to a glass electrode structure. More specifically, the present invention relates to a glass electrode having a curved sensor tip for use in determining gas in an electrochemical membrane diffusion cell.

Abstract: Disclosed are glass compositions containing specified critical proportions of ZrO.sub.2, PbO, BaO, and SrO, to achieve X-ray absorption, resistance to devitrification and other glass forming properties which render them particularly suited for the manufacture of faceplates for cathode ray tubes for color television applications.

Abstract: Disclosed is a method for diffusion doping of silicon and germanium semiconductors by the vapor phase transport of B.sub.2 O.sub.3 from a solid B.sub.2 O.sub.3 source to the semiconductor, wherein the solid B.sub.2 O.sub.3 source comprises a rigid, dimensionally stable, glass-ceramic body formed from certain alkaline earth aluminoborosilicate parent glass compositions. The glass-ceramic bodies contain up to 60 mole % of B.sub.2 O.sub.3 and are dimensionally stable at doping temperatures of 1050.degree.C and higher.

Abstract: Disclosed is a method for diffusion doping of silicon and germanium semiconductors by the vapor phase transport of B.sub.2 O.sub.3 from a solid B.sub.2 O.sub.3 source to the semiconductor, wherein the solid B.sub.2 O.sub.3 source comprises a rigid, dimensionally stable, glass-ceramic body formed from certain barium aluminoborosilicate parent glass compositions which in mole percent consist essentially of over 40 and up to 60 SiO.sub.2, 10 to 30 Al.sub.2 O.sub.3, 20 to 40 B.sub.2 O.sub.3 and 3 to 20 alkaline earth oxides including 1 to 15 BaO.

Abstract: Disclosed is a method for recovering vaporous metal halides, such as tin chloride, from a gaseous stream by introducing volatile amines, such as ammonia, into the stream to form a solid reaction product which is separated and recovered for reuse.

Abstract: Disclosed is a physical blend of particulate lead borate sealing glass and particulate refractory filler for use in forming thermal fusion seals for workpieces having a lower coefficient of thermal expansion than the sealing glass. The particulate refractory filler has a particle size diameter in excess of about 37 microns (i.e. plus 400 U.S. Sieve) to lower the expansion while maintaining adequate flow during fusion. The blend is especially useful as a package sealant for electronic components.

Abstract: Disclosed are stable, homogeneous GeO.sub.2 -B.sub.2 O.sub.3 -PbO-Bi.sub.2 O.sub.3 glass compositions having high indices of refraction, low sound velocities, low acoustic loss and high Verdet constants which render them useful in acoustooptic and magnetooptic devices.

Abstract: This invention relates to the formation of semiconductive glass-ceramic articles. More particularly, the present invention relates to the formation of semiconductive glass-ceramic articles in the CdO--Bi.sub.2 O.sub.3 --B.sub.2 O.sub.3 --GeO.sub.2 compositional field having resistivities of less than about 10.sup.9 ohm-cm.

Abstract: An improved "blow bottle" for forced expiration exercise wherein liquid is blown from a first compartment to a second compartment and then automatically returned to the first compartment by a specially designed siphon assembly.

Abstract: Disclosed is a method for chemically immobilizing enzymes on a support to form a biologically active composite having prolonged service life by using a preformed reaction solution of an alkane dihalide and an alkane diamine for the chemical immobilization.