Abstract: A reciprocating dialyzer is described for use as an artificial kidney or other extracorporeal mass transfer device. A dialyzer unit includes a membrane package having an aligned pair of thin semi-permeable membranes forming a chamber between the interior faces to receive fluid (such as blood) to be treated, and spacing elements in dialyzate chambers at the exterior faces of the membranes which contact the membrances and limit their expansion, while allowing chemical transfer to the dialyzate slurry. A plurality of such treatment units received between spaced plates comprises a dialyzer. Blood flow into and out of the membrane packages is through a central conduit, with free slurry being introduced and withdrawn from the dialyzate chamber at the periphery of each unit.

Abstract: The threshing cylinder and feeder conveyor of a combine with electrohydraulic elements are controlled by a digital computer. The computer generates a proportional voltage which is input to a linear amplifier. The amplifier provides control of the spool of an electrohydraulic servovalve. The servovalve controls the speed and direction of the threshing cylinder and feeder conveyor hydraulic motor drive. Tachometer sensors provide feedback measurement of the actual speed of the hydraulic motor output shaft. Analog-to-digital converters (A/D's) interface the computer with the sensors. Control algorithms employ velocity feedback and compensation for pressure rises due to increases in the torque on the cylinder caused by the material to be threshed entering the threshing cylinder-concave region. Easy reversal of the direction of the threshing cylinder and feeder conveyor, eliminating some of the problems associated with plugging, is available with this type of speed control equipment.

Abstract: Water-soluble polysaccharide guar gum, guaran, is altered to convert its properties from those of producing a highly viscous stable dispersion to enable production of a sequence of products that may be separately produced through the selective removal of D-galactopyranosyl side units so as to produce different lengths of molecular segments containing no derivatizing .alpha.-D-galactopyranosyl groups. The structure therefore yields a high viscosity polysaccharide with the ability to form gels of various strengths ranging from very weak gels to strong gels by appropriate selection of the extent to which the .alpha.-D-galactopyranosyl groups are removed.

Abstract: Pharmaceutical coatings in the form of aqueous dispersion of a water insoluble polymer prepared by dissolving the polymer in a water immiscible organic solvent, emulsifying the organic solution in water, optionally with the aid of additives, and stripping the organic solvent from the system to provide a colloidal, or near colloidal, aqueous dispersion or latex of small, even sized polymeric particles which are applied to pharmaceutical dosages from highly loaded latices. The latexes, which display resistance to bacterial and mold growth and, when combined with selected additives, provides convenient, attractive coating compositions which afford excellent protection and varied release properties to pharmaceutical dosages.

Abstract: A method is disclosed which permits evaluation of soil moisture utilizing remote sensing. Spectral measurements at a plurality of different wavelengths are taken with respect to sample soils and the bidirectional reflectance factor (BRF) measurements produced are submitted to regression analysis for development therefrom of predictable equations calculated for orderly relationships. Soil of unknown reflective and unknown soil moisture tension is thereafter analyzed for bidirectional reflectance and the resulting data utilized to determine the soil moisture tension of the soil as well as providing a prediction as to the bidirectional reflectance of the soil at other moisture tensions.

Abstract: A track obliterating device is disclosed that is particularly useful for obliterating the tracks on the ground made by a chemical applicator wagon. The device includes a mounting frame upon which a plurality of ground engageable track obliterating elements are mounted. The track obliterating elements are preferably coil spring teeth that are mounted on the mounting frame so as to be substantially aligned with the wheels of an applicator wagon so that the tracks made by such wheels are obliterated as the device is pulled in a forwardly direction behind the applicator wagon. The mounting frame is adapted to be attached to an applicator wagon or the like by a hitch that is pivotally mounted to the mounting frame so that the mounting frame can pivot about a vertical axis.

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 embryos by asexual embryogenesis through in vitro culture using a defined media; (2) the growth of the embryos in vitro in a media that will prevent premature germination, and (3) harvest of the in vitro-grown cotyledonary tissue.

Abstract: A method for growth, development and maturation of cacao embryos from the precursor stage disclosed in U.S. application Ser. No. 951,267, and product of such method of production.

Abstract: The low temperature red form of mercuric iodide is grown by a chemical transport method which introduces organic monomers or polymers during the crystal growth process. Resulting crystals are in the form of platelets which are more directly useful in radiation detector device applications. Platelets near one centimeter in width and 200 .mu.m in thickness have been grown in periods of a few days using only 99.9% (unpurified) starting material.

Abstract: A process for treating cellulosic materials to obtain glucose therefrom, which process includes an initial acid or base treatment of the cellulosic materials to remove hemicellulose, followed by a solvent treatment of the solid residue to dissolve the native cellulose contained therein. The dissolved cellulose is separated from the solid lignin-containing residue, whereafter the cellulose is reprecipitated by contacting the solution thereof with water. The reprecipitated cellulose is hydrolyzed to glucose either by acid or enzyme hydrolysis. If desired, the cellulose may be reprecipitated and hydrolyzed in the presence of the lignin-containing solid, the latter being separated from the glucose.

Abstract: A detection unit having a solute detector and a transport system with a quartz fiber conveyor is disclosed that is particularly useful for liquid chromatography. The quartz fiber conveyor is a porous belt that is mounted at the periphery of a rotatable disc so that the total effluent to be detected is applied to the belt as it is rotated within a heated housing enclosing the disc. The volatile solvent of the effluent is removed by evaporation within the heated housing to leave the non-volatile organic solute on the quartz fiber conveyor, which solute is then detected by a solute detector such as a flame ionization detector or a stacked flame photometric detector. After detection, the quartz fiber conveyor is cleaned by hydrogen-oxygen flame and is thus made ready for further transport of effluent. Alternate embodiments of a stacked flame photometric detector and top flame jets connected therewith are disclosed, as is a device to fabricate the quartz fiber conveyor.

Abstract: A process for recovering cellulose using sulfuric acid and utilizing the recovered cellulose by hydrolysis to yield glucose. Cellulosic raw materials are hydrolyzed by dilute sulfuric acid to remove hemicellulose, after which the solid residue is separated and is treated with concentrated sulfuric acid to dissolve cellulose contained therein. After blending and mixing of the residue in the concentrated sulfuric acid under mild reaction conditions, cellulose is reprecipitated by addition of water or an organic solvent such as methanol. The recovered cellulose can then be hydrolyzed by cellulose enzymes and/or dilute acids to provide a high yield of glucose. High level recovery and reconcentration of the sulfuric acid is also disclosed.

Abstract: A device is disclosed for treating agricultural products to enhance drying of the products by macerating the products and then forming the macerated products into a mat. The agricultural products, such as forage products and more particularly hay, are macerated by passing the products between two cylindrical rollers rotating in opposite directions at different speeds. The macerated products are then formed into a mat, if desired, by conveying the products between conveyor belts to a matting roller adjacent to one of the conveyor belts. The thus formed mat of macerated material permits drying of the products within a few hours.

Abstract: A nontoxic cellulose solvent and process for forming and utilizing the same. The solvent includes a metal chelating agent, a metal compound, an oxygen scavenging stabilizing agent and a caustic swelling agent with the disclosed solvent being prepared in either aqueous or solid form. The solvent is caused to contact cellulosic materials in order to dissolve cellulose therefrom. The dissolved cellulose may be reprecipitated and may then be hydrolyzed by cellulose enzyme or acid to yield glucose with lignin being removed either before or after hydrolysis has occurred.

Abstract: A multiple repetition rate for pulsed Doppler systems is disclosed which permits Doppler frequency identification of flow rates, for example, blood flow, at deep interior points in a mass, such as a human subject.

Abstract: A pellicular coated support and method for producing such a support are disclosed. The support includes a thin layer of adsorbate that is adsorbed to and cross-linked on an inorganic support material with the thus formed support being particularly well suited for use in liquid chromatography. An inorganic support of silica, alumina or titania has the pellicular coating formed thereon with the coating being an amine that is crosslinked by a crosslinking agent of epoxy resin, bromide or nitro alcohol.

Abstract: A new and distinct cultivar of apple tree which is distinctly characterized by its high fruit quality and its resistance to Venturia inaequalis (Cke.) Wint., the causal agent of the apple scab disease. This new variety of apple tree, now designated as COOP 22, is a seedling of known parentage planted in 1965 in the PW Breeding Orchard of the Department of Horticulture at the Illinois Agricultural Experiment Station, Urbana, Ill., which site is a cultivated area. In the above mentioned orchard, its position was Row 40, Tree 116, having the designation PRI 2016-100 in the breeding records.After observation the selection was asexually reproduced by grafting on seedling apple roots. The grafted material has maintained the described characteristics after propagation.

Abstract: A new and distinct cultivar of black walnut tree (Juglans nigra L.) which is distinctly characterized by extremely rapid growth rate, fairly strong central stem tendency, earlier than average time of leafing, and good straightness (little sweep and few crooks) thereby producing excellent timber qualities. The new variety has poor nut bearing qualities. Nut crops have been irregular and very light to none. This new variety of black walnut tree was discovered by the applicant in West Lafayette, Ind. in a yard area, 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 producing potential. This selection has been designated as BW130 in records maintained on the performance of grafts made from the original selection and will be known henceforth as Tippecanoe-1.

Abstract: A new and distinct cultivar of black walnut tree (Juglans nigra L.) which is distinctly characterized by average growth rate, very strong central stem tendency, earlier than average in time of leafing, and excellent 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 small nuts, begins nut-bearing early in life of tree, average 3 to 4 nuts per cluster, and produces kernels which exceed about eighteen (18) percent of nut weight. The nuts are small and ripen late. The pistillate flowers mature very late while pollen maturity is very early. There is no 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 Huron in Lawrence County, Ind., in a cultivated area.

Abstract: A new and distinct cultivar of black walnut tree (Juglans nigra L.) which is distinctly characterized by rapid growth rate, fairly strong central stem tendency, slightly earlier than average in time of leafing, and fair straightness thereby producing fair to good timber qualities. The new variety has fair nut bearing qualities. Nut crops are biennial and heavy in some years. Nut-bearing begins early in life of tree, average 2 nuts per cluster, and produces kernels which exceed about fifteen (15) percent of nut weight. The nuts are small and ripen late. The pistillate flowers mature mid-season while pollen maturity is very early to mid-season. In most years there is some overlap in female and male flowering. Flowering begins early in the life of the tree. This new variety of black walnut tree was discovered by the applicant near Bentonville in Fayette County, Ind., in a cultivated area.