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41 results about "Rational method" patented technology

Selection and rational development of solvent systems in counter-current chromatograph

Application of a reference mixture of natural products for systematic analysis and comparison of the properties of biphasic solvent systems in counter-current/partition chromatography. Because the reference mixture is comprised of compounds with varying polarities, functional groups, and structural features it provides a rational method for mapping the optimal resolution polarity range of a particular solvent system. The mapping of optimal resolution polarity ranges of solvent systems provided for the description of the overall optimal resolution polarity range of a solvent system family, comprised of the same solvents in different proportions. By comparing the reference mixture performance in the individual members of a solvent system family, the solvent system that best functions as the representative of, or portal to, the solvent system families is determined. Use of the reference mixture also afforded a method to compare the overall optimal resolution polarity ranges of solvent system families. Based on performance of reference mixture chromatograms, the CCC properties of solvent systems, can be compared and their CCC potential examined. The methods of the invention employing the reference mixture provides was used to identify a quaternary solvent system, hexane/t-butylmethylether/acetonitrile/water (HterAcWat), which was found to be useful for CCC of mixtures containing natural products.
Owner:THE BOARD OF TRUSTEES OF THE UNIV OF ILLINOIS

Detection device for engine oil performance of engine

The invention provides a detection device for engine oil performance of an engine, belonging to the technical field of measurement and solving the problems of single physical and chemical parameter and incapability of scientifically and rationally judging the quality of the engine oil existing in the conventional engine oil detection method. The detection device for the engine oil performance of the engine comprises a capacitive sensor for detecting capacitance of the engine oil, an infrared sensor for detecting clarity of the engine oil, a display unit for displaying a result and a processor, wherein the processor is electrically connected with all the capacitive sensor, the infrared sensor and the display unit and can be used for analyzing signals input by the capacitive sensor and the infrared sensor and transmitting an analysis and processing result to the display unit. The physical and chemical parameters such as viscosity of the engine oil, moisture, open flash point, acid value, iron content and n-pentane insoluble substance are effectively and comprehensively evaluated by the capacitive sensor and the infrared sensor of the detection device for the engine oil performance of the engine, so that the detection device has the advantages of complete detection parameters, scientific and rational method and accurate result.
Owner:HANGZHOU BRANCH ZHEJIANG GEELY AUTOMOBILE RES INST +2

Rational method for solubilising proteins

A method and data processing system for identifying mutations or insertions that alter a property such as the solubility or aggregation propensity of an input polypeptide chain. The method comprises inputting a sequence of amino acids and a structure for said sequence for said target polypeptide chain; calculating a structurally corrected solubility or aggregation propensity profile for said target polypeptide chain; selecting, using said calculated profile, regions within said target polypeptide chain; identifying at least one position within each selected region suitable for mutations or insertions; generating a plurality of mutated sequences by mutations or insertions at least one identified position; and predicting a value of the solubility or aggregation propensity for each of the plurality of mutated sequences whereby any alteration to the solubility or aggregation propensity of the input polypeptide chain is identified. Predicting a value for solubility or aggregation propensity comprises: inputting each of the plurality of mutated sequences as an input polypeptide chain into a data processing system comprising a first trained neural network having a first function mapping an input to a first output value and a second trained neural network having a second function mapping an input to a second output value; generating a first output value of said solubility or aggregation propensity for each said input polypeptide chain using said first trained neural network; generating a second output value of said solubility or aggregation propensity for each said input polypeptide chain using said second trained neural network; and combining the first and second output values to determine a combined output value for the solubility or aggregation propensity.
Owner:CAMBRIDGE ENTERPRISE LTD

Method for locating IPM2.0 standard-based main board in machine cabinet

The invention provides a method for locating an IPM2.0 standard-based main board in a machine cabinet. According to the invention, an IPMI (intelligent platform management interface) management standard is used, the method is also combined with a DDNS (dynamic domain name server) domain name resolution service and matches a Rack slot position addressing solution to realize integral uniform management of multiple nodes and simplify operation difficulty. The method comprises the following steps that: (1) after Rack finishes electrification to a client room, an integrated RMC (rational method composer) in the machine cabinet firstly scans node number, corresponding slot position and node DDNS domain name configured in the present Rack, and the DDNS domain name and a slot position number of a node are bound to form an asset management detailed list; and (2) in a using process, a service department firstly reports a maintenance requirement to an operation department and provides the DDNS name domain of a fault node once a some node has failure, and after the operation department receives the DDNS domain name, a user can quickly find out a specific position of the fault node and performs maintenance change as long as logging in an RMC management interface.
Owner:LANGCHAO ELECTRONIC INFORMATION IND CO LTD

Selection and rational development of solvent systems in counter-current chromatograph

Application of a reference mixture of natural products for systematic analysis and comparison of the properties of biphasic solvent systems in counter-current / partition chromatography. Because the reference mixture is comprised of compounds with varying polarities, functional groups, and structural features it provides a rational method for mapping the optimal resolution polarity range of a particular solvent system. The mapping of optimal resolution polarity ranges of solvent systems provided for the description of the overall optimal resolution polarity range of a solvent system family, comprised of the same solvents in different proportions. By comparing the reference mixture performance in the individual members of a solvent system family, the solvent system that best functions as the representative of, or portal to, the solvent system families is determined. Use of the reference mixture also afforded a method to compare the overall optimal resolution polarity ranges of solvent system families. Based on performance of reference mixture chromatograms, the CCC properties of solvent systems, can be compared and their CCC potential examined. The methods of the invention employing the reference mixture provides was used to identify a quaternary solvent system, hexane / t-butylmethylether / acetonitrile / water (HterAcWat), which was found to be useful for CCC of mixtures containing natural products.
Owner:THE BOARD OF TRUSTEES OF THE UNIV OF ILLINOIS

Preparation and detection method of total flavonoids of Melaleuca alternifolia

The invention discloses an extract of total flavonoids of Melaleuca alternifolia and a preparation method thereof. The essential oil is extracted from the branches and leaves of Melaleuca alternifolia after extracting essential oils with water vapor, heated and refluxed with ethanol, the ethanol is recovered under reduced pressure and concentrated to no alcohol smell. It is prepared by separation, purification and drying with macroporous adsorption resin, and the content of total flavonoids of Melaleuca alternifolia is determined by UV-visible spectrophotometry. The method is accurate, stable and easy to operate, which can meet the needs of industrial production and can effectively control Quality of total flavonoids extract of Melaleuca alternifolia. The total flavonoid content of Melaleuca alternifolia total flavonoids extract of the present invention can reach more than 50%, has low toxicity, has anti-inflammatory, antibacterial, analgesic, anti-allergic, anti-oxidation and other pharmacological effects, and the preparation method is reasonable, stable, and the production cycle is short. Short and suitable for industrial production, it is of great significance to the deep development and utilization of Melaleuca alternifolia resources and has a good development prospect.
Owner:GUANGXI INST OF CHINESE MEDICINE & PHARMA SCI

A kind of production method of quartz glass tube for fuse holder

The invention relates to a production method of a quartz glass tube for a fuse bracket, the preparation steps of which are as follows: the quartz stone raw material is used to obtain quartz sand; the quartz sand is put into sodium nitrate to remove impurities for the first time, and then carry out High-temperature roasting; after soaking in mixed acid, cleaning, dehydration and drying, aluminum nitrate nonahydrate is used for second impurity removal, and after impurity removal, high-temperature roasting, mixed acid soaking, flotation, dehydration and drying are performed to obtain high-purity quartz sand Add titanium dioxide as an additive to high-purity quartz sand, melt and draw it into a quartz glass tube, and then process it to obtain a finished product. The present invention adopts a scientific and reasonable method to purify raw materials, physically remove impurities, chemically purify, and remove gaseous impurities at high temperature for comprehensive purification to produce high-purity quartz sand that meets product requirements, and then smelts and draws the obtained high-purity quartz sand to produce have to. Moreover, continuous production is possible, the production efficiency is high, and the production cost is low, and the prepared glass tube for the fuse holder has high precision.
Owner:连云港市盛昌照明电器有限公司
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