Abstract: The present invention relates to a method for applying scale inhibitor to completion fluids during injectivity test operations. Said method takes advantage of the completion fluid to inhibit scaling in the reservoir by filling the porous spaces of the reservoir rock with the inhibited completion fluid. When the well is put into production, this inhibited fluid positioned inside the reservoir will be produced together with the oil and will inhibit the formation of scale inside the reservoir and on production equipment.

Abstract: A method of performing Kohn-Sham Density Functional Theory, DFT, calculations, for simulation of a material, chemical, or biological system includes: (i) constructing a model Hamiltonian of the system; (ii) inputting an electron density; (iii) constructing a Kohn-Sham potential and (iv) executing a quantum Kohn-Sham DFT algorithm iteration using the electron density and the Kohn-Sham potential to compute an updated electron density and an updated total energy.

Abstract: The present invention relates to a process for preparing fluid catalytic cracking (FCC) catalysts having porosity and accessibility controlled by the activity of water-soluble porogens. The catalyst produced can be used as an additive for fluid cracking, as additives for SOx and NOx reduction, as a combustion promoter and reduction of sulfur in cracked naphtha. It can also be used in hydrocracking, as a support for hydrotreating catalysts, catalytic pyrolysis of post-consumer polymers (rubber tires, plastic films, and so on) and pyrolysis of biomass.

Abstract: A multi-stage process to remove contaminant gases from raw methane streams is provided. The present technology is an innovative solution to recover and purify biogas by use of a process having at least two pressure swing adsorption stages. Taking advantage of the presence of carbon dioxide in the raw biogas streams, nitrogen and oxygen are bulky removed in the first stage, using selective adsorbents, and a nitrogen and oxygen-depleted intermediate stream is yielded to the second stage. The second stage employs an adsorbent or adsorbents to selectively remove carbon dioxide and trace amounts of remaining nitrogen and oxygen, thus producing a purer methane stream that meets pipeline and natural gas specifications.

Abstract: Air-liquid interface organoid cultures are initiated from human small intestine biopsy tissue comprising both the synintestinal epithelium and native intestinal immune cells, without reconstitution, which may be obtained from an individual pre-disposed or suffering from celiac disease. The organoid cultures exhibit T cell activation in response to in vitro gluten challenge and provide tools for a novel diagnostic method for celiac disease. Diagnosis may comprise the addition of immunogenic gluten-derived peptides into the organoid cultures, and assessing hallmarks of active celiac disease, including without limitation: 1) gliadin-presentation, resulting T-cell responses, such as 2) expansion and 3) activation, 4) epithelial-cell death and consequent 5) increased proliferative epithelial cell responses to gliadin. Celiac patients, either in GRD or GFD, test positive for these tests.

Abstract: A multi-stage process to remove contaminant gases from raw methane streams is provided. The present technology is an innovative solution to recover and purify biogas by use of a process having at least two pressure swing adsorption stages. Taking advantage of the presence of carbon dioxide in the raw biogas streams, nitrogen and oxygen are bulky removed in the first stage, using selective adsorbents, and a nitrogen and oxygen-depleted intermediate stream is yielded to the second stage.

Abstract: The present invention refers to a method wherein a test body is assembled in specific configurations to be submitted to testing in a conventional hydrostatic chamber. The method calls for assembling a test body that simulates cementing failures, the presence of stress anisotropy and a borehole of irregular geometry, by pressurizing said test body in a conventional hydrostatic chamber. The uniform forces are distributed circumferentially around a casing stream in a non-uniform way, simulating operating conditions that are as close as possible to reality, enabling an analysis of how the structure reacts in scenarios similar to actual conditions.

Abstract: The present invention refers to a method wherein a test body is assembled in specific configurations to be submitted to testing in a conventional hydrostatic chamber. The method calls for assembling a test body that simulates cementing failures, the presence of stress anisotropy and a borehole of irregular geometry, by pressurizing said test body in a conventional hydrostatic chamber. The uniform forces are distributed circumferentially around a casing stream in a non-uniform way, simulating operating conditions that are as close as possible to reality, enabling an analysis of how the structure reacts in scenarios similar to actual conditions.

Abstract: The invention relates to a process carried out continuously in one or more reactors connected in series for the preparation of sodium titanate nanotubes and their derivatives obtained by ion exchange and/or thermal treatment, by reacting titanium oxides with sodium hydroxide under suitable hydrothermal conditions to obtain or control the morphology of nanostructural titanates. The reaction mixture is introduced continuously into the reactor at a feed rate that is the same as the rate of discharge of the product. When more than one reactor is used, the material leaving the first reactor is used to feed the next reactor, and a differential of temperature is applied between the reactors in such a way as to obtain in the average, a temperature of between 60° C. and 180° C.

Abstract: Manufacturing procedure for a multi-lamina product starting from laminas consisting exclusively of natural stone, joined by means of an adhesive component. The combination of laminas of high and low quality natural stone makes it possible to obtain exclusively high quality products with large formats and reduced thicknesses, and it also allows for an increase in the production of high quality products obtained starting from a single lamina of high quality original natural stone (FIG. 2). The innovation of the manufacturing procedure lies in the machining of grooves, the adhesion of laminas, the curing of the resin, and the splitting. By means of the proposed process (FIG. 1) it is possible to obtain multi-laminated products (FIG. 3) of reduced thickness and large format with high mechanical performance and durability, and which are easy to lay on site.

Abstract: Process for the preparation of quasi-crystalline boehmite comprising the steps of: (a) preparing an aqueous precursor mixture comprising a water-insoluble aluminum source; (b) decreasing the pH of the precursor mixture of step (a) by at least 2 units; (c) increasing the pH of the mixture of step (b) by at least 2 units, and (d) aging the mixture of step (c) under hydrothermal conditions to form a quasi-crystalline boehmite. This process provides for the hydrothermal preparation of quasi-crystalline boehmites with high peptizability. The invention therefore further relates to quasi-crystalline boehmites with a high peptizability, measured as the Z-average submicron particle size. This Z-average submicron particle size preferably is less than 500 nm, more preferably less than 300 nm, even more preferably less than 200 nm, and most preferably less than 100 nm.

Abstract: This invention is related to means for the normal or abnormal movement measurement of the uterus. Particularly, it refers to a device permitting to quantify the prolapse of the uterus or the vaginal vault after that the patient has had a hysterectomy. Such device or prolapsometer embraces a set of two elements, where the internal element is composed by a color strip with a color centimeters scale that moves and slides within the semi-cylindrical and transparent external element also known as a centimeters scale as well as visual indicators or normality or insufficiency found after the introduction to said strip in the uterine space according the distance ran by it.

Abstract: The present invention relates to a process for the production of alkyl esters of carboxylic acids for use as biodiesel starting from the reaction of transesterification of triglycerides originating from oils and fats of vegetable or animal origin, which can be used individually or in mixtures with one another in any proportions, employing heterogeneous catalysis by means of protonated lamellar titanate catalysts in nanostructured form, and said forms can comprise, among in other forms, nanotubes, nanofibres or nanosheets.

Abstract: This invention is related to the medicine branch, more exactly it is related to a prosthetic, preformed, non absorbable or mixed mesh with specific form and size. This is a T-cup mesh or T mesh-cup which is composed by two rectangular attachments with T-cup shape to be used in pelvic or urogynecological surgery in the treatment of: Uterine prolapse: hysterocele. Post-hysterectomy vaginal vault prolapse: cupolocele Related or not to posterior enterocele or elongation of Douglas' bag bottom.

Abstract: The present invention relates to a process for the production of alkyl esters of carboxylic acids for use as biodiesel starting from the reaction of transesterification of triglycerides originating from oils and fats of vegetable or animal origin, which can be used individually or in mixtures with one another in any proportions, employing heterogeneous catalysis by means of protonated lamellar titanate catalysts in nanostructured form, and said forms can comprise, among in other forms, nanotubes, nanofibres or nanosheets.

Abstract: The present invention provides novel compositions of allosteric hemoglobin modifiers which are substantially free of impurities, specifically polymeric impurities. In one embodiment, the novel compositions contain an allosteric hemoglobin modifier compound and less than 100 ppm of the polymeric impurities generated during the preparation of this compound. Included in the present invention are novel methods for preparing allosteric hemoglobin modifiers that are substantially free of polymeric impurities. Also included in the present invention are improved methods for the purification of the product formed by the method of this invention. The novel methods of purification comprise extracting the crude composition with a water immiscible or partially immiscible solvent such as methylisobutyl ketone (MIBK) to lower amounts of impurities, specifically polymeric impurities.

Abstract: The present invention provides novel compositions of allosteric hemoglobin modifiers which are substantially free of impurities, specifically polymeric impurities. In one embodiment, the novel compositions contain an allosteric hemoglobin modifier compound and less than 100 ppm of the polymeric impurities generated during the preparation of this compound. Included in the present invention are novel methods for preparing allosteric hemoglobin modifiers that are substantially free of polymeric impurities. Also included in the present invention are improved methods for the purification of the product formed by the method of this invention. The novel methods of purification comprise extracting the crude composition with a water immiscible or partially immiscible solvent such as methylisobutyl ketone (MIBK) to lower amounts of impurities, specifically polymeric impurities.