Patents by Inventor Xuehua Shen
Xuehua Shen has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20240123423Abstract: A silicon-based solid amine sorbent for CO2 and the making method thereof including: providing a silicon source liquid which is a silicate solution or a liquid organosilicate, wherein the silicate solution comprises water and a first silicate dissolved in the water; mixing the silicon source liquid with a precipitant to perform a precipitation reaction to obtain a product liquid containing a precipitate, wherein the precipitate is a second silicate or silicic acid; filtering out the precipitate and washing the precipitate with water; mixing the precipitate filtrated out but not dried yet with an organic alcohol and then performing an azeotropic distillation to obtain a dehydrated precipitate; calcining the dehydrated precipitate to obtain a silicon-based support, wherein the silicon-based support is a powder of the second silicate powder or a silica powder; and impregnating the silicon-based support with an organic amine solution and then drying to obtain the silicon-based amine-containing solid sorbent for CType: ApplicationFiled: June 9, 2021Publication date: April 18, 2024Inventors: Zuotai ZHANG, Chunyan LI, Feng YAN, Xuehua SHEN, Fan QU
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Patent number: 11918972Abstract: A porous calcium silicate hydrate, a preparation method thereof and an adsorbent are provided. The preparation method of the porous calcium silicate hydrate includes: leaching fly ash with an alkali agent to obtain a silicate leaching solution; adding the silicate leaching solution dropwise to a calcium hydroxide suspension at a constant rate, and conducting stirring and a heating reaction to obtain a calcium silicate hydrate gel; and mixing the calcium silicate hydrate gel with an organic alcohol solvent, conducting azeotropic distillation, and then conducting separation, drying and calcination to obtain the porous calcium silicate hydrate.Type: GrantFiled: April 18, 2023Date of Patent: March 5, 2024Assignee: DECARBON TECHNOLOGY (SHENZHEN) CO., LTD.Inventors: Feng Yan, Fan Qu, Zuotai Zhang, Chunyan Li, Xuehua Shen, Heijin Chen
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Publication number: 20240033707Abstract: The present disclosure relates to a solid amine adsorbent of CO2 and a method for preparing the same. The method includes: providing pseudo boehmite; pore-enlarging the pseudo boehmite; calcining the pore-enlarged pseudo boehmite to obtain an aluminum oxide powder; and impregnating the aluminum oxide powder in an organic amine solution, and drying to obtain the solid amine adsorbent of CO2.Type: ApplicationFiled: June 9, 2021Publication date: February 1, 2024Inventors: Zuotai ZHANG, Xuehua SHEN, Feng YAN, Chunyan LI, Fan QU
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Patent number: 11826727Abstract: A calcium silicate based nickel catalyst and a preparation method and application thereof are provided. The method includes: leaching a silicon based solid waste with an alkali agent to obtain a silicate leaching solution; adding the silicate leaching solution and a nitrate solution corresponding to a lanthanum metal dropwise to a calcium hydroxide suspension for a first precipitation reaction, and subjecting a precipitate produced by the reaction to filtration, drying and calcination to obtain a modified calcium silicate support; and dispersing the modified calcium silicate support in an anhydrous alcohol solvent to obtain a mixed suspension, adding an alcohol solution of a nickel salt dropwise to the mixed suspension for a second precipitation reaction, conducting heating and stirring until alcohols in the anhydrous alcohol solvent and the alcohol solution of a nickel salt are volatilized, and conducting drying and calcination to obtain the modified calcium silicate based nickel catalyst.Type: GrantFiled: April 18, 2023Date of Patent: November 28, 2023Assignee: DECARBON TECHNOLOGY (SHENZHEN) CO., LTD.Inventors: Feng Yan, Fan Qu, Zuotai Zhang, Chunyan Li, Heijin Chen, Xuehua Shen
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Publication number: 20230278005Abstract: A porous calcium silicate hydrate, a preparation method thereof and an adsorbent are provided. The preparation method of the porous calcium silicate hydrate includes: leaching fly ash with an alkali agent to obtain a silicate leaching solution; adding the silicate leaching solution dropwise to a calcium hydroxide suspension at a constant rate, and conducting stirring and a heating reaction to obtain a calcium silicate hydrate gel; and mixing the calcium silicate hydrate gel with an organic alcohol solvent, conducting azeotropic distillation, and then conducting separation, drying and calcination to obtain the porous calcium silicate hydrate.Type: ApplicationFiled: April 18, 2023Publication date: September 7, 2023Applicant: DeCarbon Technology (Shenzhen) Co., Ltd.Inventors: Feng YAN, Fan QU, Zuotai ZHANG, Chunyan LI, Xuehua SHEN, Heijin CHEN
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Publication number: 20230271165Abstract: A calcium silicate based nickel catalyst and a preparation method and application thereof are provided. The method includes: leaching a silicon based solid waste with an alkali agent to obtain a silicate leaching solution; adding the silicate leaching solution and a nitrate solution corresponding to a lanthanum metal dropwise to a calcium hydroxide suspension for a first precipitation reaction, and subjecting a precipitate produced by the reaction to filtration, drying and calcination to obtain a modified calcium silicate support; and dispersing the modified calcium silicate support in an anhydrous alcohol solvent to obtain a mixed suspension, adding an alcohol solution of a nickel salt dropwise to the mixed suspension for a second precipitation reaction, conducting heating and stirring until alcohols in the anhydrous alcohol solvent and the alcohol solution of a nickel salt are volatilized, and conducting drying and calcination to obtain the modified calcium silicate based nickel catalyst.Type: ApplicationFiled: April 18, 2023Publication date: August 31, 2023Applicant: DeCarbon Technology (Shenzhen) Co., Ltd.Inventors: Feng YAN, Fan QU, Zuotai ZHANG, Chunyan LI, Heijin CHEN, Xuehua SHEN
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Publication number: 20160350428Abstract: A method and apparatus for utilizing user behavior to immediately modify sets of search results so that the most relevant documents are moved to the top. In one embodiment of the invention, behavior data, which can come from virtually any activity, is used to infer the user's intent. The updated inferred implicit user model is then exploited immediately by re-ranking the set of matched documents and advertisements to best reflect the information need of the user. The system updates the user model and immediately re-ranks documents and advertisements at every opportunity in order to constantly provide the most optimal results. In another embodiment, the system determines, based on the similarity of results sets, if the current query belongs in the same information session as one or more previous queries. If so, the current query is expanded with additional keywords in order to improve the targeting of the results.Type: ApplicationFiled: February 25, 2016Publication date: December 1, 2016Inventors: Mark Cramer, Cheng Xiang Zhai, Xuehua Shen, Bin Tan
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Publication number: 20150032717Abstract: A method and apparatus for utilizing user behavior to immediately modify sets of search results so that the most relevant documents are moved to the top. In one embodiment of the invention, behavior data, which can come from virtually any activity, is used to infer the user's intent. The updated inferred implicit user model is then exploited immediately by re-ranking the set of matched documents and advertisements to best reflect the information need of the user. The system updates the user model and immediately re-ranks documents and advertisements at every opportunity in order to constantly provide the most optimal results. In another embodiment, the system determines, based on the similarity of results sets, if the current query belongs in the same information session as one or more previous queries. If so, the current query is expanded with additional keywords in order to improve the targeting of the results.Type: ApplicationFiled: October 10, 2014Publication date: January 29, 2015Inventors: Mark Cramer, Cheng Xiang Zhai, Xuehua Shen, Bin Tan
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Publication number: 20130262455Abstract: A method and apparatus for utilizing user behavior to immediately modify sets of search results so that the most relevant documents are moved to the top. In one embodiment of the invention, behavior data, which can come from virtually any activity, is used to infer the user's intent. The updated inferred implicit user model is then exploited immediately by re-ranking the set of matched documents to best reflect the information need of the user. The system updates the user model and immediately re-ranks documents at every opportunity in order to constantly provide the most optimal results. In another embodiment, the system determines, based on the similarity of results sets, if the current query belongs in the same information session as one or more previous queries. If so, the current query is expanded with additional keywords in order to improve the targeting of the results.Type: ApplicationFiled: February 12, 2013Publication date: October 3, 2013Applicants: The Board of Trustees of the University of Illinois, Surf Canyon IncorporatedInventors: Mark Cramer, Cheng Xiang Zhai, Xuehua Shen, Bin Tan
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Patent number: 8442973Abstract: A method and apparatus for utilizing user behavior to immediately modify sets of search results so that the most relevant documents are moved to the top. In one embodiment of the invention, behavior data, which can come from virtually any activity, is used to infer the user's intent. The updated inferred implicit user model is then exploited immediately by re-ranking the set of matched documents to best reflect the information need of the user. The system updates the user model and immediately re-ranks documents at every opportunity in order to constantly provide the most optimal results. In another embodiment, the system determines, based on the similarity of results sets, if the current query belongs in the same information session as one or more previous queries. If so, the current query is expanded with additional keywords in order to improve the targeting of the results.Type: GrantFiled: May 1, 2007Date of Patent: May 14, 2013Assignees: Surf Canyon, Inc., The Board of Trustees of The University of IllinoisInventors: Mark Cramer, ChengXiang Zhai, Xuehua Shen, Bin Tan
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Publication number: 20080114751Abstract: A method and apparatus for utilizing user behavior to immediately modify sets of search results so that the most relevant documents are moved to the top. In one embodiment of the invention, behavior data, which can come from virtually any activity, is used to infer the user's intent. The updated inferred implicit user model is then exploited immediately by re-ranking the set of matched documents to best reflect the information need of the user. The system updates the user model and immediately re-ranks documents at every opportunity in order to constantly provide the most optimal results. In another embodiment, the system determines, based on the similarity of results sets, if the current query belongs in the same information session as one or more previous queries. If so, the current query is expanded with additional keywords in order to improve the targeting of the results.Type: ApplicationFiled: May 1, 2007Publication date: May 15, 2008Applicant: Surf Canyon IncorporatedInventors: Mark Cramer, ChengXiang Zhai, Xuehua Shen, Bin Tan
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Publication number: 20070005646Abstract: The subject invention relates to probabilistic models that are trained from transitions among various topics of pages visited by a sample population of search users. In one aspect, probabilistic models of topic transitions are learned for individual users and groups of users. Topic transitions for individuals versus larger groups are analyzed, wherein the relative accuracies of personal models of topic dynamics with models constructed from sets of pages drawn from similar groups and from a larger population of users are compared. To exploit temporal dynamics, the accuracy of these models are tested for predicting transitions in topics of visits at increasingly more distant times in the future. The models can be applied to search topic dynamics of tagged pages, and then utilized to predict topics of subsequent pages visited by users.Type: ApplicationFiled: June 30, 2005Publication date: January 4, 2007Applicant: Microsoft CorporationInventors: Susan Dumais, Eric Horvitz, Xuehua Shen