Abstract: An apparatus is disclosed for enzyme detection that is particularly well suited for high performance liquid chromatography. The apparatus is basically a flow-through enzyme detector that is capable of maintaining zero-order reaction kinetics with respect to substrate during enzyme detection and this results in a linear accumulation of product that can be readily measured to provide a dependable readout of detected enzymes. A sample in liquid form that may include one or more enzymes is coupled through a separation column to separate the enzymes, after which a reaction causing substrate is added and the resulting mixture is caused to flow through a reaction chamber, reaction products then being detected with the readout therefrom indicating the detected enzymes. The dimensions of the reaction chamber are dependent upon flow rates and must be selected to allow the mixture to remain in the chamber for a preselected reaction time.

Abstract: Dried amorphous aluminum hydroxide gels having substantial acid reacting capability over an extended period of time are prepared by drying the gel after contacting the aqueous liquid gel with an inert organic solvent of sufficient solubility in water to replace water in the gel. The dried gel product and pharmaceutical compositions comprising the gel are also novel.

Abstract: A field corn specific method of treatment with 1-triacontanol [CH.sub.3 (CH.sub.2).sub.28 CH.sub.2 OH] which produces a significant yield increase is disclosed. The method teaches that the stage of plant maturity is the key to the attainment of increased yields in field corn. Foliar applied rates from about 2 mg per acre to about 56 mg per acre are equally effective, which makes widespread commercial farm use practical.

Abstract: A device and method are disclosed for treating compressible materials, such as hay or other fibrous materials, with a treating substance, preferably anhydrous ammonia, as a preservative for the treated compressible material. The treating substance is preferably introduced into a treating area as a gas, but may be introduced in aqueous or liquid form to establish a fog of treating substance in the treating area.The compressible material to be treated is introduced into the treating area which preferably has air locks, established by a pair of pressure rollers, at both the compressible material inlet and outlet to maintain the treating substance within the treating area.Within the treating area, a path is established for continuous movement of the compressible materials from the inlet to the outlet rollers.

Abstract: An apparatus is disclosed for a cellular mobile communication system utilizing a spread spectrum. A plurality of fixed base stations is connected with a central processor so that calls originating in any cell can terminate in any other cell. The available frequency spectrum is divided such that one-half is used for mobile-to-base station transmission and the other one-half is used for base station-to-mobile unit transmission. A power control/mobile locator system and method is utilized in all mobile units to compensate for changes in signal level and to maintain the average received signal level at the base station constant regardless of the location of the mobile unit within the cell. In addition, each mobile unit has a unique set of time-frequency coded waveforms that are used for both transmission and reception.

Abstract: A three piece prosthetic knee joint comprised of a femoral component in the form of a shell member having convex condylar portions with an insert having a top surface with concave portions which receive said condylar portions of the femoral component and a bottom surface that rotatably engages a platform load bearing tibial component. The device may also include a cam mechanism between the insert and the tibial component so that lateral motion therebetween lifts the tibia thereby more nearly simulating natural knee joint action than can be obtained by existing two component prosthetic knee joints.The present design is also adapted to provide a total knee joint replacement system whereby a single surgical technique may be employed, and then the correct components may be inserted according to the observed condition of the knee.

Abstract: A device is disclosed, and a method for construction, in which gallium arsenide phosphide diode chips are employed to produce an inexpensive thermometer that has a broad range, accurate, temperature sensitivity. The thermometer does not require recalibration to maintain accuracy and is rugged in construction. The chip described is a type commonly found in light-emitting diodes.

Abstract: A flame ionization detector is disclosed that is particularly useful for liquid chromatography. The detector is preferably utilized with a disc transport assembly with flame jets being positioned at opposite sides of the solute-bearing periphery of the disc. Hydrogen and air are injected through the flame jets and coaxial cables are connected to make electrical contact with the flame jets so that a flame ionization response occurs when organic compounds on the disc of the disc transport assembly are combusted in a potential field. When so combusted, a current is caused to flow from the flame jets through the coaxial cable to an electrometer where the current is amplified for display on a strip chart recorder or other output device.

Abstract: A harvester pick-up is disclosed for harvesting agricultural products which are located above, but in contact with, or very close, to the field surface. The agricultural products, such as tomatoes, are seized between two contra-rotating flexible discs which are operated in contact with the field surface and deformed thereby to lift all agricultural products located on said field surface up above the discs where they are then discharged into a conveyor belt.

Abstract: An apparatus and method are disclosed for spiral separation of materials. The apparatus includes spiral separator flights mounted on a vertical tube within an enclosure with the material, such as seeds, to be separated being introduced into the apparatus through the vertical tube upon which the spirals are mounted. One of the separated material fractions is discharged from the apparatus through the vertical tube while the other fraction is discharged from a second discharge outlet. A spiral driving mechanism and a baffle are provided for separator adjustability and a plurality of spirals may be enclosed within a common housing. The method includes separating materials by introducing the materials onto spirals at a separating area, controlling the speed of rotation of the spirals to control separation, and collection the separated fractions.

Abstract: This invention is a non-agricultural method for producing cotyledons of those plant species whose cotyledons have commercial value for the manufacture of useful products or for direct use as foodstuffs such as Theobroma cacao L. (cacao). The method involves three (3) distinct steps, namely, (1) proliferation of cotyledonary embryos by asexual embryogenesis through in vitro culture using a defined media; (2) the growth of the embryo in vitro in a media that will prevent premature germination, and (3) harvest of the in-vitro-grown cotyledon.

Abstract: A method is disclosed for signal transmission and reception utilizing wideband signals, and, more particularly, the use of time-frequency coded signals to achieve more efficient use of the electromagnetic spectrum. The method can be generally utilized for signal transmission and reception, including personal communication uses such as utilized for land-mobile radio communications. Each user is assigned a unique set of time-frequency coded waveforms for both transmission and reception, and both message and control signals are transmitted and received using the assigned unique set of signals. Message modulation is effected by digitizing the message, such as a speech message, and several types of message digitization, including PCM are set forth. For land-mobile radio service, the geographical area is divided into a series of cells each of which has a base station therein for communication with the mobile units then in the cell.

Abstract: A demodulator unit is disclosed for spread spectrum apparatus utilized in a cellular mobile communication system. The cellular mobile communication system includes a plurality of fixed base stations connected with a central processor so that calls originating in any cell can terminate in any other cell. Each mobile unit has a unique set of time-frequency coded waveforms that are used for both transmission and reception. Message modulation is accomplished by digitizing the speech and encoding the resulting binary sequences into the set of waveforms available to the user, while detection is accomplished by the demodulator unit in which the phases of each received waveform are compared with those of the preceding waveform. The demodulator unit includes a tapped delay line which can have mixers before and after the delay line and can be a narrowband unit with delays and mixers.

Abstract: A process to yield glucose from cellulose through acid hydrolysis. Cellulose is recovered from cellulosic materials, preferably by pretreating the cellulosic materials by dissolving the cellulosic materials in Cadoxen or a chelating metal caustic swelling solvent and then precipitating the cellulose therefrom. Hydrolysis is accomplished using an acid, preferably dilute sulfuric acid, and the glucose is yielded substantially without side products. Lignin may be removed either before or after hydrolysis.

Abstract: A releasable mold is disclosed for forming a ribbed transformer casing. The mold includes a plurality of sections first and second ones of which are endwise joined to form an annular ring. Each section has an inner portion with a concave face for forming an annular rib on a transformer casing formed by the mold with each section having an outwardly extending abutment on one opposite side portion and a recess on the other opposite side portion to receive the abutment on an adjacent section stacked thereagainst with the opposite side portions in engagement with one another to thereby accurately position the sections with respect to one another when so stacked and to thus allow a plurality of spaced annular ribs to be formed on the transformer casing. A plurality of fastening ears also extend from each section with each of the fastening ears being apertured to receive a fastening rod therein to releasably fasten the stacked and joined sections in position for forming the ribbed transformer casing.

Abstract: A late-ripening peach tree bearing yellow-fleshed fruit which ships well and is non-browning.

Abstract: A new and distinct cultivar of apple tree which is distinctly characterized by its high fruit quality, its resistance to infection caused by Venturia inaequalis (Cke.) Wint., the casual agent for the apple scab disease, due to the fact that this new cultivar carries the genetic factor V.sub.f, and closely resembles `Golden Delicious` but differs from `Golden Delicious` in that it is resistant to apple scab, has freedom from stem cavity russet, bears a waxier skin, and green-tinged lenticels at harvest. This new variety of apple tree, now designated as COOP 16, was discovered by applicants in September, 1973, at Lafayette, Ind., in a cultivated area. The tree is a seedling of known parentage planted in 1966 in Block C of the Hinsley Breeding Orchard at the Horticultural Farm of the Purdue University Agricultural Experiment Station, West Lafayette, Ind. In the above orchard, its position was Row 21, Tree 79, having the description PRI 2174-3 in the breeding records.

Abstract: A new and distinct cultivar of black walnut tree (Juglans nigra L.) which is distinctly characterized by rapid growth rate, strong central stem tendency, and outstanding straightness for timber purposes. The nut-bearing habits of this tree are unknown. It has not borne either pistillate or staminate flowers during the first 7 years after grafting. The strong central stem tendency is due to the ability of the terminal bud to flush and outgrow the laterals. This variety also has good anthracnose resistance. This particular variety was discovered by the applicant near Martinsville, Ind. in a cultivated area. It occurred as a wild tree growing on land managed for timber-growing purposes and was discovered in the course of a search for unique and high quality black walnut trees to be utilized in breeding for outstanding timber qualities.

Abstract: A new and distinct cultivar of black walnut tree (Juglans nigra L.) which is distinctly characterized by rapid growth rate, strong central stem tendency, average time in leafing, and outstanding straightness (little sweep and few crooks) thereby producing excellent timber qualities. The new variety has outstanding nut qualities as well such as abundant annual crops of large-sized nuts, begins nut-bearing early in life of tree, average 3 nuts per cluster, and produces kernels which exceed 20 percent of nut weight. The nuts are large and ripen early. The pistillate flowers mature early while pollen maturity is mid-season. In most years there is some overlap in female and male flowering. Flowering begins very early in the life of the tree. This new variety of black walnut tree was discovered by the applicant near Darlington, Ind. on land owned by Purdue University in a cultivated area.

Abstract: A new and distinct variety of black walnut tree (Juglans nigra L.) which is characterized by rapid growth rate, strong central stem tendency, and outstanding straightness for timber purposes. The nut-bearing habits of this tree are inferior. The pistillate flowers mature very late while pollen maturity is fairly late. In most years there is no overlap in female and male flowering. Flowering begins very late in the life of the tree. The nuts are large and ripen in mid-season. Nut crops occur rarely and are very light. This new cultivar of black walnut tree was discovered by the applicant in Carroll County near Camden, Ind., in a cultivated area. It occurred as a wild tree growing on land managed for timber-growing purposes and was discovered in the course of a search for unique and high quality black walnut trees to be utilized in breeding for outstanding timber qualities. The original tree was cut and sold for high quality veneer.