42results about How to "Significant selectivity" patented technology

Catalytic compositions useful for carrying out the metathesis of unsaturated fatty bodies, in particular unsaturated fatty bodies comprising oleic acid or oleic acid esters, contain a ruthenium-based catalyst which can be isolated and which has the formula (I) below:

An audio-processing device having an audio input, for receiving audio signals, each audio signal having a mixture of components, each corresponding to a sound source, and a control input, for receiving, for each sound source, a desired gain factor associated with the source, by which it is desired to amplify the corresponding component, and an auxiliary signal generator, for generating at least one auxiliary signal from the audio signals, and with a different mixture of components as compared with a reference audio signal; and a scaling coefficient calculator, for calculating scaling coefficients based upon the desired gain factors and upon parameters of the different mixture, each scaling coefficient associated with one of the auxiliary signal and optionally the reference audio signal, and an audio synthesis unit, for synthesizing an output audio signal by applying scaling coefficients to the auxiliary signal and optionally the reference audio signal and combining the results.

The present invention discloses mixed matrix membranes (MMMs) comprising a polymer matrix and molecular sieve particles and methods for making and using these membranes. The molecular sieve particles contain micropores or mesopores and exhibit a thin plate morphology with high aspect ratio and the plate thickness no more than 300 nm. This invention also pertains to controlling the alignment of the thin plate molecular sieve particles in the continuous polymer matrix of the thin dense selective layer of the asymmetric mixed matrix membranes. These MMMs exhibited much higher selectivity improvement than those comprising molecular sieve particles with other kinds of morphology for gas separations such as CO2 / CH4 and H2 / CH4 separations. The thin plate morphology of molecular sieves is beneficial to make high performance mixed matrix membranes. The MMMs are suitable for a variety of liquid, gas, and vapor separations

The invention discloses an optimization method for a track playback function in an indoor positioning system, wherein the optimization method comprises the following steps of: S1, importing an indoor CAD (Computer-Aided Design) map into a monitoring center of the indoor positioning system; S2, acquiring the boundary, the scale and the coordinates of obstacles of the imported current map by the monitoring center automatically; S3, identifying the obstacles by the monitoring center, formatting the current map area and optimizing the specification scenery color of the map; S4, recording and storing the track coordinate data of the electronic tag movement, carried by a positioned object, by the monitoring center via a communication network; S5, optimizing the recorded track data by the monitoring center by adopting an A* algorithm and recording optimal obstacle avoidance data; and S6, drawing the track point and the trajectory by the monitoring center according to the optimized track data. Compared with the prior art, the invention has the advantages of greatly improving the performance of track playback, and has the obvious optimal choice of a track path and an intelligent obstacle avoidance function.

The present invention relates to truncated GIP analogues which comprise one or more substitutions as compared to wild-type GIP and which may have the property of an altered, preferably increased GLP-1 activity, e.g. as assessed in in vitro efficacy assays. The invention provides GIP-GLP-1 dual agonist compounds and associated methods.

A metal oxide film suitable for protection of metals, composed mainly of aluminum. A metal oxide film includes a film of an oxide of a metal composed mainly of aluminum, having a thickness of 10 nm or greater, and exhibiting a moisture release rate from the film of 1E18 mol. / cm2 or less. Further, there is provided a process for producing a metal oxide film, wherein a metal composed mainly of aluminum is subjected to anodic oxidation in a chemical solution of 4 to 10 pH value so as to obtain a metal oxide film.

A system for transmitting and receiving medical vital signs from a “smart” vital sign apparatus over multi-protocol communication channels to and from a remote electronic health record database that may include a plurality of vital sign sources that communicate over a plurality of standard communication channels including: Bluetooth, LoRa, WiFi, cellular, Ethernet or other direct IP paths. The system reduces the volume of data transferred and extends BLE security.

The invention belongs to the technical field of medicines and provides an oleanolic acid-3-one derivative which is represented as the following general formula. In the general formula, R is defined as the specification. The invention also relates to the preparation method of the compounds and potential applications of the compounds as antitumor medicines.

The invention discloses a molecular imprinting polymer filter paper for absorbing penicillin. The filter paper is prepared by following steps: (1) dissolving penicillin and monomer in acetonitrile, sealing, standing still for at least 6 hours, adding an initiator and a cross-linking agent, introducing nitrogen to remove the oxygen in the solution; (2) putting a filter paper into the solution prepared in the step (1), oscillating for at least 3 hours, taking the filter paper out, putting the filter paper in a dry container, sealing the container, putting the container in a constant temperature incubator with a temperature of 50 to 80 DEG C, and having polymerization reaction for 8 to 24 hours; (3) putting the filter paper prepared in the step (2) into a mixed solution of methanol and acetic acid, oscillating, washing away the penicillin, non-polymerized monomers and cross-linking agent on the filter paper, soaking the filter paper in methanol, washing away acetic acid, and drying so as to obtain the molecular imprinting polymer filter paper for absorbing penicillin. The monomer is a mixture of itaconic acid, acrylamide and 2-vinylpyridine with a mol ratio of 1:1 to 1.5:0.5 to 1, and the cross-linking agent is pentaerythritol tetramethacrylate. The molecular imprinting polymer filter paper for absorbing penicillin is a cheap and high-efficient antibiotic absorption material.

Skeletal iron catalysts are prepared and utilized for producing synthetic hydrocarbon products from CO and H2 feeds by Fischer-Tropsch synthesis process. Iron powder is mixed with aluminum, antimony, silicon, tin or zinc powder and 0.01-5 wt. % metal promotor powder to provide 20-80 wt. % iron content, then melted together, cooled to room temperature and pulverized to provide 0.1-10 mm iron alloy catalyst precursor particles. The iron alloy precursor particles are treated with NaOH or KOH caustic solution at 30-95° C. to extract or leach out a major portion of the non-ferrous metal portion from the iron and provide the skeletal iron catalyst material. Such skeletal iron catalyst is utilized with CO+H2 feedstream in either fixed bed or slurry bed type reactor at 200-350° C. temperature, 1.0-3.0 mPa pressure and gas hourly space velocity of 0.5-3.0 L / g Fe / h to produce desired hydrocarbon products.

A polymer article having structure (I), where P comprises the basic polymer and groups -L-CH(-X(R1)p)-CH2(-Y(R2)p); L is a part of a pending group utilized for introducing -X(R1)p and -Y(R2)p; X and Y are halogen, N, S and O; R1 is hydrogen, alkyl, acyl or R2 when X is N, O or S; R2 is hydrogen, alkyl, alkylaryl or arylalkyl in which the alkyl part may contain 1-18 carbons, or -R3(-NH-CR4=O)q or -R3(-NH2)q, -CR4=O or poly alkyloxy that may have been terminally acylated or alkylated; p is an integer 0-3, with the provisos a) p depends on X being halogen, O, S or N, and b) that if several groups R2 are present they may be identical or different; R3 is alkyl, -O-alkyl, hydroxyalkyl, phenylalkyl, with up to 18 carbon atoms in the alkyl part, and R4 is C1-18 alkyl. q is an integer>O representing that one or more hydrogens in R3 may have been replaced with -NH2 or -NH-CR4=O. The polymer article may be used as a chromatography separation medium or in solide phase oligonucleotide synthesis.

This invention encompasses synthetic antimicrobial peptide analogs having certain un-natural amino acids, including the un-natural amino acids hydrophobic tetrahydroisoquinolinecarboxylic acid (Tic) and octahydroindolecarboxylic acid (Oic), incorporated into the polypeptide backbone. These antimicrobial peptides (AMPs) are useful to treat infection in humans and other mammals of such bacteria as Gram positive bacteria, Gram negative bacteria and Mycobacterium. Many of the AMPs also exhibit the property of reduced hemolytic activity. The invention also entails 3D-QSAR models and mathematical equations that calculate the biological activity of any peptide sequence against Staphylococcus aureus or Mycobacterium ranae.

The present invention relates to a process for production of oligomer products from olefinic C4 feed stocks comprising isobutene, butenes, butanes, butadienes and mixture thereof. Particularly, the present invention relates to a process for the preparation of oligomers using olefinic C4 feed stock in presence of tertiary butyl alcohol (TBA) and iso propyl alcohol (IPA).

Methods and compositions for controlling the growth of an invasive species by application of a composition comprised of a natural pesticide derived from a species to the invasive species, especially endocides. Disclosed herein are methods and compositions for controlling the growth of a first invasive species by application of a composition comprising a natural pesticide derived from a second invasive species to the first invasive species. In some embodiments, the invasive species is an invasive species with glands as the primary accumulation sites of autotoxic chemicals. The first and second invasive species may be the same or they may be different. In some embodiments, the natural pesticide may be an endocide. An endocide (endogenous biocide) is a biocide derived from an endogenous bioactive agent (e.g., a secondary metabolite) that does not cause apparent poison in normal growth of the producing species but will poison or inhibit and even eliminate the parent species when induced in producing species.

The present invention provides novel spiro[cyclobutane-1,3′-indolin]-2′-one derivatives of formula (I)in which Cy, R1, R2, R4, L, and m have the meaning given in the specification, and pharmaceutically acceptable salts thereof. The compounds of formula (I) are useful as bromodomain inhibitors in the treatment or prevention of diseases or disorders where bromodomain inhibition is desired.

The present invention relates to a process for improving the selectivity of an EO process utilizing a highly selective EO catalyst. In particular, the present invention is an improvement in the initial operation of a process for manufacturing ethylene oxide by contacting ethylene, oxygen, a chloride moderator and a hydrocarbon co-moderator with a high selectivity silver-containing catalyst at a concentration of carbon dioxide of less than about 2 mole percent, wherein the initial operating temperature is determined by optimization of such initial operating temperature at a level higher than the normal low initial operating temperature that is typically selected to obtain a longer operating cycle.

A polishing slurry is disclosed which includes about 0.01 wt % to about 10 wt % of polishing particles, about 0.005 wt % to about 0.1 wt % of a dispersing agent, about 0.001 wt % to about 1 wt % of an oxide-polishing promoter including a pyridine compound, about 0.05 wt % to about 0.1 wt % of a nitride-polishing inhibitor including an amino acid or an anionic organic acid, and water. A method for manufacturing a display device including an active pattern disposed on a base substrate, a gate metal pattern including a gate electrode overlapping the active pattern, a planarized insulation layer disposed on the gate metal pattern, and a source metal pattern disposed on the planarized insulation layer is also disclosed.

An electronic oscillator circuit has a first oscillator, for supplying a first oscillation signal, a second oscillator, for supplying a second oscillation signal, a first controller for delivering the first control signal as a function of a phase difference between a first controller input and a second controller input of the first controller; a second controller for delivering the second control signal as a function of a phase difference between a first controller input of the second controller and a second controller input of the second controller; a resonator; at least a second resonance frequency, with a first phase shift dependent on the difference between the frequency of a second exciting signal and the second resonance frequency and processing means, for receiving the first oscillator signal and the second oscillator signal, determining their mutual proportion, looking up a frequency compensation factor in a prestored table and outputting a compensated oscillation signal.

A system for transmitting and receiving medical vital signs from a “smart” vital sign apparatus over multi-protocol communication channels to and from a remote electronic health record database that may include a plurality of vital sign sources that communicate over a plurality of standard communication channels including: Bluetooth, LoRa, WiFi, cellular, Ethernet or other direct IP paths. The system reduces the volume of data transferred and extends BLE security.