Xuemei
Xuemei Chen, Voorheesville, NY US
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20080300164 | Calixarene-Based Peptide Conformation Mimetics, Methods of Use, and Methods of Making - A class of topomimetic calixarene-based peptide mimetics is described. Calixarene-based peptide mimetics have various biological activities such as, for example, bactericidal activity, antiangiogenic activity, and/or antitumor activity. Methods of use and methods of designing calixarene-based peptide mimetics are described. | 12-04-2008 |
20120309801 | CALIXARENE-BASED PEPTIDE CONFORMATION MIMETICS, METHODS OF USE, AND METHODS OF MAKING - A class of topomimetic calixarene-based peptide mimetics is described. Calixarene-based peptide mimetics have various biological activities such as, for example, bactericidal activity, antiangiogenic activity, and/or antitumor activity. Methods of use and methods of designing calixarene-based peptide mimetics are described. | 12-06-2012 |
20130035394 | Calixarene-Based Peptide Conformation Mimetics, Methods of Use, and Methods of Making - A class of topomimetic calixarene-based peptide mimetics is described. Calixarene-based peptide mimetics have various biological activities such as, for example, bactericidal activity, antiangiogenic activity, and/or antitumor activity. Methods of use and methods of designing calixarene-based peptide mimetics are described. | 02-07-2013 |
Xuemei Han, Daqing CN
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20120310025 | Catalyst for Synthesizing 1-Hexene from Ethylene Trimerization and Application Thereof - A catalyst for synthesizing 1-hexene from ethylene trimerization and its application are provided. Said catalyst consists of (a) the compound containing P and N, (b) electron donor, (c) Cr compound, (d) carrier and (e) accelerator. The molar ratio of (a), (b), (c), (d) and (e) is 0.5-100:0.5-100:1:0.5-10:50-5000. The catalyst is prepared by mixing the components of (a)-(e) in an ethylene trimerization apparatus in situ and ethylene is introduced into the apparatus continuously. The prepared catalyst can be used to synthesize 1-hexene from ethylene trimerization in the inert solvents. The trimerization is performed at 30-150° C. and 0.5-10.0 MPa for 0.1-4 hours. The catalyst has high catalytic activity and high 1-hexene selectivity. During the process of ethylene trimerization, by-product polyethylene does not stick to the apparatus. | 12-06-2012 |
Xuemei Han, Heilongjiang Province CN
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20120232321 | METHOD FOR SYNTHESIS OF 1-DECENE OLIGOMER - A method for synthesis of 1-decene oligomer is provided, wherein 1-decene is polymerized at 80-120° C., 0.8-1.4 MPa in the presence of aluminum trichloride catalyst supported on gamma-alumina and n-hexane solvent where the volume ratio of 1-decene to n-hexane is 3:8-4:1. The catalyst is treated as follows: impregnating gamma-alumina carrier in 0.5-2.0 mol of hydrochloric acid, sulfuric acid, nitric acid or mixtures thereof, then vacuum drying at 80-100° C. and calcining at 400-800° C.; dissolving 5-10 g of anhydrous aluminum trichloride in 100 ml of tetrachloromethane, trichloromethane or dichloromethane solvent; adding the obtained solution into 10-20 g of activated alumina carrier and obtaining the catalyst after vacuum drying. The conversion rate of 1-decene is 50 wt % or more. The oligomer has a kinematic viscosity at 40° C. of 6.0-25 mm2/s and a viscosity index of 160-262. | 09-13-2012 |
Xuemei He, Walnut Creek, CA US
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20130102761 | SOLID PHASE FOR MIXED-MODE CHROMATOGRAPHIC PURIFICATION OF PROTEINS - Proteins are purified by a mixed-mode chromatography system formed by attaching a ligand with cation exchange and hydrophobic functionalities to a large-pore support matrix, the only linkage between the ligand and the support matrix being a chain having a backbone of no more than three atoms between the hydrophobic group and the support matrix. | 04-25-2013 |
Xuemei Li, Beijing CN
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20130309705 | METHOD FOR DETERMINING THE CONCENTRATION OF HMG-COA REDUCTASE INHIBITORS - The invention, which belongs to the field of enzymology and pharmaceutical chemistry, relates to a method for determining the concentration of a HMG-CoA reductase inhibitor, and to a method for determining the inhibition rate of HMG-CoA reductase. In particular, the method for determining the inhibition rate of HMG-CoA reductase comprises the following steps: 1) establishing the following enzymatic reaction systems for HMG-CoA reductase: a reaction system for a sample to be tested, to which a sample to be tested is added, and a negative control reaction system, to which deionized water in the same volume as a sample to be tested is added; 2) determining the MVAL concentration in a negative control reaction system and in a reaction system for a sample to be tested by HPLC-MS/MS method, respectively; 3) calculating the inhibition rate of HMG-CoA reductase according to the formula: inhibition rate of HMG-CoA reductase=[(MVAL concentration in a negative control reaction system−MVAL concentration in a reaction system for a sample to be tested)/MVAL concentration in a negative control reaction system]×100%. The inhibition rate of HMG-CoA reductase can be accurately determined by the method. | 11-21-2013 |
20130310450 | Compound Separated from Monascus-Fermented Rice,The Preparation Method and Uses Thereof - The present invention discloses a compound separated from | 11-21-2013 |
20150025130 | STEROL DERIVATIVE, PREPARATION METHOD THEREFOR AND USE THEREOF - The present disclosure discloses a sterol derivative, a preparation method therefor and a use thereof. The sterol derivative includes a sterol compound with Structural Formula (I) or a pharmaceutically acceptable salt thereof, or an extract containing the sterol compound, or a composition containing the sterol compound, wherein Structural Formula (I) is as follows: | 01-22-2015 |
20150031657 | STEROLS DERIVATIVE, AND PREPARATION METHOD AND PURPOSE THEREOF - The present invention pertains to pharmaceutical chemical field, and relates to a sterol derivative as well as preparation method and uses thereof. Specifically, the present invention relates to a compound of Formula I, or a pharmaceutically acceptable salt, ester or ether thereof, wherein, R | 01-29-2015 |
Xuemei Li, Shanghai CN
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20100069325 | Pharmaceutical composition for treatment of chronic liver diseases and use thereof - A pharmaceutical composition for treatment of chronic liver diseases, the composition including at least cordyceps sinensis polysaccharide, amygdaloside, and gypenoside. The pharmaceutical composition slows down liver fibrosis, stops the development thereof, or reverses the same. A method of using the pharmaceutical composition for treatment of chronic liver diseases. | 03-18-2010 |
20100204513 | Preparation process of a complex oxide catalyst and application thereof to the synthesis of the acrylic acid - The present invention provides a complex oxide catalyst whose general formula is Mo | 08-12-2010 |
20100323881 | Preparation process of a catalyst used for gas phase oxidation of light alkenes to unsaturated aldehydes - The present invention provides a preparation process of complex oxides catalyst containing Mo, Bi, Fe and Co, which comprising steps as following: dissolving precursor compounds of the components for catalyst and complexing agent in water to obtain a solution, and then drying, molding and calcining the solution to obtain catalyst. The catalyst is used for gas phase oxidation of light alkenes to unsaturated aldehydes. The catalyst has high activity, selectivity and stability. The reaction condition is mild. The preparation process of the catalyst is easy to operate and can be used for mass production. | 12-23-2010 |
20110295041 | CATALYST FOR PRODUCING UNSATURATED ALDEHYDE BY OXIDATION OF LOWER OLEFIN AT HIGH SPACE VELOCITY - A method of preparing a catalyst for producing acrolein by oxidation of propylene at high space velocity, said catalyst is a Mo—Bi—Fe—Co based composite metal oxide. Producing unsaturated aldehyde via partial oxidation of lower unsaturated olefin at high space velocity using said catalyst is suitable for process with or without off-gas recirculating. Said catalyst is prepared by co-precipitation, the reaction conditions for using said catalyst to produce unsaturated aldehyde are, the space velocity of unsaturated lower olefin relative to catalyst being 120˜200 h-1(STP), reaction temperature being 300˜420° C. and absolute pressure being 0.1˜0.5 MPa; a single-stage unsaturated lower olefin conversion ratio of greater than 98.0% and carbon oxide yield of less than 3.3% with an overall yield of unsaturated lower aldehyde and acid of greater than 94.0% are obtained. The process to prepare the said catalyst is simple, easy to be repeated, and capable of industrial scale-up. | 12-01-2011 |
Xuemei Li, Lanzhou CN
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20090156866 | Method for producing 1,2-propylene glycol using bio-based glycerol - This invention disclosed a method for producing 1,2-propylene glycol from bio-based glycerol. In this method, a CuO—CeO | 06-18-2009 |
Xuemei Liang, Pensacola CN
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20130056420 | MULTILAYER MICROFILTRATION MEMBRANE - A microfiltration membrane comprising (a) an asymmetric layer, (b) an isometric layer, and (c) an interface layer between the asymmetric layer and the isometric layer, the interface layer having a first portion contacting the asymmetric layer and a second portion contacting the isometric layer; wherein, (i) the asymmetric layer has a region contacting the first portion of the interface layer, the region including cells having a first porous structure; (ii) the isometric layer has a region contacting the second portion of the interface layer, the region including cells having a second porous structure; the first porous structure being larger than the second porous structure; and the first portion of the interface layer comprises cells having the first porous structure, and the second portion of the interface layer comprises cells having the second porous structure, and methods of making and using the membrane, are disclosed. Also disclosed is a microfiltration membrane comprising (a) a first asymmetric layer, (b) a second asymmetric layer, and (c) an interface layer between the first asymmetric layer and the second asymmetric layer, the interface layer having a first portion contacting the first asymmetric layer and a second portion contacting the second asymmetric layer; wherein, (i) the first asymmetric layer has a region contacting the first portion of the interface layer, the region including cells having a first porous structure; (ii) the second asymmetric layer has a region contacting the second portion of the interface layer, the region including cells having a second porous structure; the first porous structure being larger than the second porous structure; and the first portion of the interface layer comprises cells having the first porous structure, and the second portion of the interface layer comprises cells having the second porous structure, as well as methods of making and using the membrane. | 03-07-2013 |
Xuemei Ma, Huaibei CN
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20130092602 | Continuous Reaction System Comprising Subcritical Or Supercritical Liquid As Solvent And Reactant As Solid - A continuous reaction system is provided, which specifically relates to a continuous reaction system comprising subcritical and/or supercritical liquid as solvents and a reactant as solid. The invention can effectively prevent cavitations in the reaction system effectively, and realize maximum conversion of the solid reactant material. | 04-18-2013 |
Xuemei Song, Beijing CN
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20130285551 | Method for Improving Uniformity of High-Frequency Plasma Discharge by Means of Frequency Modulation - A method for improving the uniformity of high-frequency discharge plasma by means of frequency modulation is disclosed. In a plasma discharge chamber, there is a pair of parallel electrodes. A high-frequency power supply is adopted to feed the electrodes. The frequency range of the electromagnetic field is 13.56 MHz˜160 MHz. Discharge gas is input to form plasma. The frequency of the fed-in high-frequency electromagnetic field is under automatic tuning control, and keeps changing cyclically without stop in the course of plasma discharge. The range of the frequency change may fall into either a portion of or the entire range of 13.56 MHz˜160 MHz and makes the locations with higher plasma density on the plane in parallel with the electrodes and in the plasma discharge space changed cyclically. In a time slot longer than one frequency change cycle, the average plasma density between the parallel electrodes is uniform. | 10-31-2013 |
Xuemei Song, Hangzhou CN
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20160063240 | MANAGING REGISTRATION OF USER IDENTITY USING HANDWRITING - Embodiments of the present application relate to a method, apparatus, and system for registering a user identity. The method includes receiving handwriting information associated with handwriting entered by a user, computing a degree of complexity of the first handwriting information, and in the event that the degree of complexity of the first handwriting information satisfies one or more preset conditions, associating the first handwriting information with identity registration information corresponding to the user. | 03-03-2016 |
Xuemei Wang, Guang Dong CN
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20130233518 | FLAT HEAP PIPE STRUCTURE - The instant disclosure relates to a flat heat pipe structure, which includes a flat tubing and a support member. The flat tubing has two opposed main walls and two opposed connecting walls connected thereto. The main and connecting walls cooperatively define an internal space. The inner surfaces of the flat tubing are covered with a capillary structure. The support member is disposed in the internal space of the flat tubing and has at least one support arm. The support arm extends in the longitudinal direction of the flat tubing. The support arm has two opposed surfaces abutting to the capillary structure of the main walls. | 09-12-2013 |
Xuemei Wang, Emeryville, CA US
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20130109581 | POSITIVELY CHARGED SPECIES AS BINDING REAGENTS IN THE SEPARATION OF PROTEIN AGGREGATES FROM MONOMERS | 05-02-2013 |
20130273573 | AMYLOID BETA AGGREGATES IN CEREBRO SPINAL FLUID AS BIOMARKERS FOR ALZHEIMER'S DISEASE - The invention provides methods for assessing increased probability of having Alzheimer's disease in a subject under assessment including a step of obtaining a measurement of Aβ40 aggregates in a biological sample from the subject, where the biological sample does not include brain tissue, a fraction of brain tissue, or brain homogenate. In some embodiments, the invention relates to methods of assessing increased probability of early stage Alzheimer's disease. The invention further provides methods of assessing increased probability of not having Alzheimer's disease, methods of monitoring disease progression in a subject with Alzheimer's disease, and methods of assigning disease stage for a subject with Alzheimer's disease, and methods of assessing increased probability of MCI progressing to Alzheimer's disease. | 10-17-2013 |
Xuemei Wang, Castro Valley, CA US
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20090099343 | Isolation of pathogenic prions - Peptide reagents that interact preferentially with the PrP | 04-16-2009 |
20090130774 | Elisa assays using prion-specific peptide reagents - Peptide reagents that interact preferentially with the PrPsc form of the prion protein are described for use in detecting PrPsc in biological samples. In particular, ELISA assays are described. | 05-21-2009 |
20110189692 | ASSAY FOR PATHOGENIC CONFORMERS - The invention provides methods for detecting the presence of a non-prion pathogenic conformer in a sample by contacting the sample suspected of containing a non-prion pathogenic conformer with a pathogenic conformer-specific binding reagent under conditions that allow the binding of the reagent to the pathogenic conformer, if present; and detecting the presence the pathogenic conformer, if any, in the sample by its binding to the reagent; where the pathogenic conformer-specific binding reagent is typically derived from a prion protein fragment and interacts preferentially with a pathogenic prion protein. Methods for diagnosis of conformational diseases are also provided. | 08-04-2011 |
Xuemei Wang, Shanghai CN
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20160093649 | SEMICONDUCTOR DEVICE AND RELATED MANUFACTURING METHOD - A method for manufacturing a semiconductor device may include the following steps: preparing a substrate; providing a gate material layer that overlaps the substrate; providing a blocking layer that partially covers the gate material layer; removing a portion of the gate material layer that is not covered by the blocking layer for forming a gate electrode; providing a blocking material layer that covers both the blocking layer and the substrate; removing a portion of the blocking material layer for forming a blocking member that has an opening, wherein the opening partially exposes the blocking layer and partially exposes the substrate; and performing ion implantation through the opening to form a doped well region in the substrate. | 03-31-2016 |
Xuemei Wang, Thousand Oaks, CA US
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20080312270 | COMPOUNDS AND METHODS USEFUL FOR TREATING ASTHMA AND ALLERGIC INFLAMMATION - Compounds, compositions and methods that are useful in the treatment of inflammatory and immune-related diseases and conditions are provided herein. In particular, the invention provides compounds which modulate the function and/or expression of proteins involved in atopic diseases, inflammatory conditions and cancer. The subject compounds are carboxylic acid derivatives. | 12-18-2008 |
Xuemei Wang, Nanjing CN
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20150093332 | TUMOR-TARGETING MULTI-MODE IMAGING METHOD FOR LIVING BODY BASED ON GOLD NANOCLUSTERS - A tumor-targeting multi-mode imaging and analyzing method for living body based on gold nanoclusters can include incubating the relevant cells with chloroauric acid and the salt solution thereof with certain concentration under physiological conditions, thereby generating gold nanoclusters. After, real-time non-invasive fluorescence imaging, Raman imaging and/or ultrasonic imaging can be used to image the tumor tissue. | 04-02-2015 |
Xuemei Xu, Beijing CN
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20120107350 | VIRUS-LIKE PARTICLES OF CAPSID PROTEINS FROM HUMAN PAPILLOMAVIRUS TYPE 16/58/18/6/11 AND THE METHOD FOR PREPARATION AND THE USES THEREOF - Five optimized genes of capsid L1 protein from human papillomavirus type 16, 58, 18, 6 and 11, which are modified by using insect's preferred codons and so on. Method for modifying those genes to express more highly in insect cells. Virus-like particle's vaccine compositions comprising HPV L1 proteins or their functional relatives produced by using those modified genes. Those optimized genes of L1 can be used to produce HPV 16 VLP, HPV 58VLP, HPV 18VLP, HPV 6 VLP, HPV 11VLP in insect cells. Yields of virus-like particles derived from those optimized HPV L1 genes are high. Mixed multivalent vaccines comprising above optimized HPV L1 genes can be used to prevent and treat multiple HPV infection and diseases related with it. | 05-03-2012 |
Xuemei Yang, Alamo, CA US
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20140262785 | POLYACRYLAMIDE GELS FOR RAPID CASTING, BLOTTING, AND IMAGING, WITH STORAGE STABILITY - Hand cast gels, and solutions for their preparation, are described. | 09-18-2014 |
20160003772 | POLYACRYLAMIDE GELS FOR RAPID CASTING, BLOTTING, AND IMAGING, WITH STORAGE STABILITY - Hand cast gels, and solutions for their preparation, are described. | 01-07-2016 |
Xuemei Yang, Walnut Creek, CA US
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20090183989 | POLYMERIC SORBENT SHEETS AS ION RESERVOIRS FOR ELECTROBLOTTING - Electroblotting for the transfer of electrophoretically separated species from a gel to a transfer membrane is performed in a semi-dry format with sheets of absorbent polyester or polyester/cellulose blend wetted with buffer solution in place of the traditional buffer-wetted filter paper. The result is effective electroblotting at a lower electric current level than that obtained with filter paper and thereby less resistance heating of the gel, the transfer membrane, and the species being transferred. | 07-23-2009 |
20100051462 | HYDROLYSIS-RESISTANT POLYACRYLAMIDE GELS - Polyacrylamide gels that offer high resolution in protein separations and are more stable relative to hydrolysis than conventional polyacrylamide gels that rely on Tris or Tris-Bis as buffering agents are made by incorporating triethanolamine in place of most or all of the Tris or Tris-Bis. | 03-04-2010 |
20120090999 | POLYMERIC SORBENT SHEETS AS ION RESERVOIRS FOR ELECTROBLOTTING - Electroblotting for the transfer of electrophoretically separated species from a gel to a transfer membrane is performed in a semi-dry format with sheets of absorbent polyester or polyester/cellulose blend wetted with buffer solution in place of the traditional buffer-wetted filter paper. The result is effective electroblotting at a lower electric current level than that obtained with filter paper and thereby less resistance heating of the gel, the transfer membrane, and the species being transferred. | 04-19-2012 |
20120285830 | HYDROLYSIS-RESISTANT POLYACRYLAMIDE GELS - Polyacrylamide gels that offer high resolution in protein separations and are more stable relative to hydrolysis than conventional polyacrylamide gels that rely on Tris or Tris-Bis as buffering agents are made by incorporating triethanolamine in place of most or all of the Tris or Tris-Bis. | 11-15-2012 |