Abstract: A method for recovering high molecular weight naphthenic tetra-acids, particularly ARN acids from a calcium naphthenate deposit. Calcium naphthenate deposits contain large amounts of calcium naphthenate salts of ARN acids. The method dual solvent extraction process in which the naphthenic tetra-acids chemically bound as calcium naphthenate salts are converted into free acid monomers by an aqueous acid. The resulting free acid monomers are then dissolved into an organic solvent phase and the counterions dissolve in the aqueous acid phase. The naphthenic tetra-acids are then recovered from the organic solvent phase.

Abstract: A method for recovering high molecular weight naphthenic tetra-acids, particularly ARN acids from a calcium naphthenate deposit. Calcium naphthenate deposits contain large amounts of calcium naphthenate salts of ARN acids. The method dual solvent extraction process in which the naphthenic tetra-acids chemically bound as calcium naphthenate salts are converted into free acid monomers by an aqueous acid. The resulting free acid monomers are then dissolved into an organic solvent phase and the counterions dissolve in the aqueous acid phase. The naphthenic tetra-acids are then recovered from the organic solvent phase.

Abstract: Disclosed embodiments include a method for retinal image analysis implemented in a medical system with one or more processors comprising the method steps of: (a) locating an optical disk on the retinal images and establishing a plurality of circumferences centered at the disk; (b) detecting a plurality of vessels within a region defined by said circumferences' radii using a crease-based algorithm; (c) extracting a plurality of vessel segments based on a deformable models (snakes) algorithm; and d) automatically classifying the vessels and computing clinical parameters.

Abstract: The invention comprises lubricating compositions and hydraulic to fluids containing N,N?-diaryl-o-phenylenediamine compounds that impart good levels of oxidation inhibition in the lubricants and hydraulic fluids. The invention further comprises a method of making N,N?-diaryl-o-phenylenediamine compounds.

Abstract: The present invention relates to metformin glycinate salt and pharmaceutical compositions thereof for the treatment of diabetes mellitus. The method includes administration of the metformin glycinate salt by various routes selected from oral, intravenous injectable, intramuscular injectable, nasal, intraperitoneal, or sublingual, in order to achieve a reduction in blood glucose levels. The invention further relates to the synthesis of a new 1,1-dimethylbiguanide glycinate salt, called Metformin Glycinate. The resulting salt exhibits advantages over other metformin salts. These advantages are due, in the first place, to the fact that the glycine counterion exhibits hypoglycemic effects by itself. Moreover, the salt exhibits more rapid absorption, reaching higher plasma concentrations than those produced with metformin hydrochloride.

Abstract: The invention comprises lubricating compositions and hydraulic fluids containing N,N?-diaryl-o-phenylenediamine compounds that impart good levels of oxidation inhibition in the lubricants and hydraulic fluids. The invention further comprises a method of making N,N?-diaryl-o-phenylenediamine compounds.

Abstract: A method for recovering high molecular weight naphthenic tetra-acids, particularly ARN acids from a calcium naphthenate deposit. Calcium naphthenate deposits contain large amounts of calcium naphthenate salts of ARN acids. The method dual solvent extraction process in which the naphthenic tetra-acids chemically bound as calcium naphthenate salts are converted into free acid monomers by an aqueous acid. The resulting free acid monomers are then dissolved into an organic solvent phase and the counterions dissolve in the aqueous acid phase. The naphthenic tetra-acids are then recovered from the organic solvent phase.

Abstract: An apparatus for evaluating deposit formation characteristics of lubricant samples. The apparatus includes a reactor chamber having a closed first end and a second end, said closed first end of said reactor chamber forming a lubricant sump and said second end open to the atmosphere, an electric heater for heating a test coupon positioned thereon, said electric heater positioned within said reactor chamber, above said lubricant sump, an air supply tube, said air supply tube having a first end in fluid communication with a source of air and a second end, said second end positioned adjacent the test coupon, said air supply tube having a sample orifice located between said first end and said second end of said air supply tube and a lubricant supply tube, said lubricant supply tube having a first end positioned within said lubricant sump and in fluid communication with a source of lubricant and a second end, said second end positioned within said sample orifice of said air supply tube.

Abstract: Petroleum resid, bitumen and/or heavy oil is upgraded by the separation of asphaltenes and/or resins from such resids, bitumen and/or heavy oils by contacting them with an ionic liquid with which the asphaltenes and/or resins interact.

Abstract: The invention comprises lubricating compositions and hydraulic fluids containing N,N?-diaryl-o-phenylenediamine compounds that impart good levels of oxidation inhibition in the lubricants and hydraulic fluids. The invention further comprises a method of making N,N?-diaryl-o-phenylenediamine compounds.

Abstract: A method of beam forming an array, by computer processing a cross covariance, of the reference sub array seismic signal data signal, by having an unknown shape comprising receiving acoustic signals, via the array, and computing the data and segmenting the array into an initial segment of a known shape and at least a second segment, and beam forming the initial segment to provide a beam formed output, and using the beam formed output to obtain weights, for the second segment of the array.

Abstract: The present invention is directed to a method that determines the necessary and sufficient tests to relate a variety of apparently non-related tests to desired final test results. The present invention also provides a method to determine those tests which, having been shown capable to be used in a high-throughput environment, are able to predict end-use qualification test results for lubricants, greases or industrial fluids. As a corollary, the present invention provides a method to select lubricant formulations and components based on apparently non-related, but predictive tests. In an applied example, the present invention is directed to a device and method that produces and evaluates formulated lubricants, functional fluids, and greases by determining previously unknown relationships between Intermediate Tests and End-use Tests.

Abstract: Pharmaceutical compositions of the active substances glimepiride with metformin or its salts such as hydrochloride, succinate, furmarate, etc. are useful to control blood glucose in patients with type 2 diabetes. To prove the effectiveness of the combination, clinical studies were conducted that demonstrated the existence of not only an additive effect, but also a synergistic effect of the two drugs compared with monotherapy using only one of the drugs used in combination. In consequence, the combination may be used as an effective and safe therapy to control blood glucose in patients with type 2 diabetes, using different proportions of the active substances in combinations suitable for the needs of different patients.

Abstract: Improved single-step process for preparing 7,16-deoxy-2-aza-10-O-cladinosyl-12-O-desosaminyl-4,5-dihydroxy-6-ethyl-3,5,9,11,13,15-hexamethylbicycle[11.2.1]hexadeca-1(2)-en-8-ona from erythromycin A, with high yield and under soft conditions suitable for its industrial production. The transformation of erythromycin A into an intermediate compound, called 6,9-iminoether, which is obtained in a single step, is achieved by forming the mesitylenesulfonyloxime “in situ” from erythromycin, which in the presence of a base in aqueous acetone undergoes a Beckmann's transposition creating the iminoether with the help of the hydroxyl in position 6 of the macrolide ring; this intermediary is transformed into the antibiotic 9-deoxo-9a-methyl-9a-aza-9a-homoerythromycin A, which is obtained by precipitation in hexane, thereby obtaining an innovative form, with an anhydrous crystalline structure and physical characteristics different from the forms known to date.

Abstract: A lubricating oil composition is provided comprising a major amount of an oil of lubricating viscosity and a minor amount of at least one trinuclear molybdenum compound. Preferably, the trinuclear molybdenum compound is selected from those compounds having the formula Mo3SkL4Qz and mixtures thereof in which L is a ligand having organo groups with a sufficient number of carbon atoms to render the compound soluble in the oil, k varies from 4 through 7, Q is selected from the group of compounds having lone pair electrons including water, amines, alcohols, phosphines, and ethers, and z ranges from 0 to 5. In general, the organo groups of the mono-anionic ligands will be the same although they may be different, and they preferably are selected from alkyl, aryl, substituted aryl, and ether groups. For example, when L is a dialkyldithiocarbamate or a dialkyldithiophosphate, the alkyl groups will have from about 1 to 30 carbon atoms.

Abstract: A lube oil composition that inhibits lubricant viscosity increase and dispersancy decrease is described. The composition includes an oil of lubricating viscosity and a mixture of specified functionalized derivatives of pentaerythritol tetrakis 3-mercaptopropionate and amine antioxidants.

Abstract: This invention relates to synthetic based turbo oils, preferably polyol ester-based turbo oils which exhibit exceptional load-carrying capacity by use of a synergistic combination of sulfur (S)-based and phosphorous (P)-based load additives. The S-containing additive of the present invention is sulfurized fatty acid (SFA), preferably the sulfurized oleic acid (SOA) and the P-containing additive is one or more amine phosphate(s). The turbo oil composition consisting of the dual P/S additives of the present invention achieves an excellent load-carrying capacity, which is better than or equivalent to that obtained when each additive was used alone at a treat rate higher than the total additive combination treat rate, and this lower additive concentration requirement allows the turbo oil composition to meet or exceed U.S. Navy MIL-L-23699 requirements including Oxidation and Corrosion Stability and Si seal compatibility.

Abstract: The present invention provides for the use of certain oil soluble iodides to enhance the oxidation resistance of lubricating oils and fuels, and for the novel formulated compositions containing these iodides. Oil soluble iodides such as C.sub.16 to C.sub.78 alkyl ammonium as well as oil solubilizable or dispersible iodides such as CoI.sub.2, CuI, KI and NaI in combination with a suitable dispersing agent may be used. Typically a minor amount of additive, from about 40 to about 1000 ppm is used. The additive is effective as an antioxidant in a variety of different types of base and formulated oils.

Abstract: Adducts of benzotriazole or substituted benzotriazole with formaldehyde or with thiadiazole or substituted thiadiazole are useful as ashless anti-wear/anti-friction/anti-oxidant additives for lubricants. Formulated lubricants containing such adducts exhibit compound levels of anti-wear, anti-friction and oxidation stability performance.

Abstract: A lubricating oil composition for jet engines which comprises: (a) an aviation turbine oil; (b) from about 0.025 to about 5.0 wt %, based on lubricating oil composition, of a dimercaptothiadiazole of the formula: ##STR1## where R and R.sup.1 are each independently hydrogen or hydrocarbyl radical having from 1 to 20 carbon atoms; and (c) from about 1.0 to about 30.0 wt %, based on lubricating oil composition, of an alphaolefin/maleic ester copolymer of the formula ##STR2## where R.sup.3 and R.sup.4 are each independently C.sub.1 to C.sub.18 alkyl, and n is an integer such that the average molecular weight of the copolymer is from 500 to 20,000.