Patents by Inventor Yunpeng Xu
Yunpeng Xu 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: 20220002481Abstract: The present application discloses a method for preparing polyester polyol comprising performing transesterification of raw materials containing inorganic oxyacid ester and polyhydric alcohol to obtain the polyester polyol. The polyester polyol obtained by the method described in the present application has higher heat resistance.Type: ApplicationFiled: November 15, 2018Publication date: January 6, 2022Applicant: DALIAN INSTITUTE OF CHEMICAL PHYSICS, CHINESE ACADEMY OF SCIENCESInventors: Danhua YUAN, Jiacheng XING, Yunpeng XU, Zhongmin LIU
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Publication number: 20220002496Abstract: This application discloses a polymer ultraviolet absorbent and preparation method and application thereof. The synthesis process of the polymer ultraviolet absorbent does not require additional organic solvents, and the reaction by-product is high-purity ethanol, which is relatively economical. green, efficient and environmentally friendly. The polymer ultraviolet absorbent has good water solubility, is convenient to use, safe and non-toxic, and has excellent ultraviolet absorption effect.Type: ApplicationFiled: November 15, 2018Publication date: January 6, 2022Applicant: DALIAN INSTITUTE OF CHEMICAL PHYSICS, CHINESE ACADEMY OF SCIENCESInventors: Jiacheng XING, Danhua YUAN, Yunpeng XU, Zhongmin LIU
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Publication number: 20210403333Abstract: The present application discloses a method for preparing hierarchical porous titanium-silicon TS-1 molecular sieve, wherein a titanate polyester polyol is used as titanium source. In the method, titanium is connected to a polymer, which makes titanium more difficult to hydrolyze, prevent the TiO2 precipitation and reduce the formation of non-framework titanium. In addition that such new type of the titanate polyester polyol acts as the titanium source during the synthesis process, the titanate polyester polyol can also be used as mesoporous template. Therefore, the TS-1 molecular sieve obtained by this method has mesoporous structure, which plays an important role in promoting the application of TS-1 molecular sieve in the field of catalysis.Type: ApplicationFiled: November 15, 2018Publication date: December 30, 2021Applicant: DALIAN INSTITUTE OF CHEMICAL PHYSICS, CHINESE ACADEMY OF SCIENCESInventors: Danhua YUAN, Jiacheng XING, Yunpeng XU, Zhongmin LIU
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Publication number: 20210403332Abstract: The present application discloses a method for preparing a hierarchical porous TS-1 molecular sieve comprising using a silicon-titanium ester polymer as both titanium source and silicon source. In the method, silicon and titanium are uniformly connected to a same polymer, and the hydrolysis rates thereof are equivalent during hydrolysis, which can prevent TiO2 precipitation and reduce the generation of non-framework titanium. Further, the silicon-titanium ester polymer is not only used as both silicon source and titanium source, but also can be used as a mesoporous template in the synthesis process. The obtained TS-1 molecular sieve has mesoporous structure with narrow pore size distribution.Type: ApplicationFiled: November 15, 2018Publication date: December 30, 2021Applicant: DALIAN INSTITUTE OF CHEMICAL PHYSICS, CHINESE ACADEMY OF SCIENCESInventors: Danhua YUAN, Jiacheng XING, Yunpeng XU, Zhongmin LIU
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Publication number: 20210320203Abstract: According to various embodiments, a transistor device may include a substrate. The transistor device may further include a drain terminal and a source terminal formed in the substrate, and a gate terminal formed over the substrate. The transistor device may further include an insulator structure arranged between the drain terminal and the source terminal, and at least partially under the gate terminal. The insulator structure may include an oxide member and a trench isolation region. The oxide member may be at least partially formed over the trench isolation region.Type: ApplicationFiled: April 14, 2020Publication date: October 14, 2021Inventors: Ming LI, Sivaramasubramaniam RAMASUBRAMANIAM, Dong Hyun SHIN, Di WU, Yunpeng XU, Chenji ZOU, Jeoung Mo KOO
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Publication number: 20210233554Abstract: In an embodiment, a method comprises: capturing, by one or more microphone arrays of a vehicle, sound signals in an environment; extracting frequency spectrum features from the sound signals; predicting, using an acoustic scene classifier and the frequency spectrum features, one or more siren signal classifications; converting the one or more siren signal classifications into one or more siren signal event detections; computing time delay of arrival estimates for the one or more detected siren signals; estimating one or more bearing angles to one or more sources of the one or more detected siren signals using the time delay of arrival estimates and a known geometry of the microphone array; and tracking, using a Bayesian filter, the one or more bearing angles. If a siren is detected, actions are performed by the vehicle depending on the location of the emergency vehicle and whether the emergency vehicle is active or inactive.Type: ApplicationFiled: January 24, 2020Publication date: July 29, 2021Inventors: Jugal Buddhadev, Rajesh K. Venkateswaran, Alok Sharma, Yunpeng Xu, Michael Lee, Paul Schmitt, Matthew Andromalos
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Publication number: 20210173825Abstract: The disclosed embodiments provide a system that identifies duplicate entities. During operation, the system selects training data for a first machine learning model based on confidence scores representing likelihoods that pairs of entities in an online system are duplicates. Next, the system updates parameters of the first machine learning model based on features and labels in the training data. The system then identifies a first subset of additional pairs of the entities as duplicate entities based on scores generated by the first machine learning model from values of the features for the additional pairs and a first threshold associated with the scores. The system also determines a canonical entity in each of the duplicate entities based on additional features. Finally, the system updates content outputted in a user interface of the online system based on the identified first subset of the additional pairs.Type: ApplicationFiled: December 4, 2019Publication date: June 10, 2021Inventors: Tianhao Lu, Junzhe Miao, Yunpeng Xu, Dan Shacham, Hong H. Tam, Tao Xiong
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Publication number: 20210061224Abstract: Disclosed are computer systems and techniques for authenticating a passenger of an autonomous vehicle and operating doors of the autonomous vehicle. For passenger authentication, the computer system is configured to receive a ride request, generate a passcode, transmit the passcode to a user account and the autonomous vehicle, authenticate the user using the passcode, and enable departure of the autonomous vehicle. For door operation, the computer system is configured to detect environmental conditions surrounding an autonomous vehicle, determine based on a set of operational conditions whether one or more doors of the autonomous vehicle are desirable for use, and operate a door if the door is safe to operate and desirable for operation.Type: ApplicationFiled: August 12, 2020Publication date: March 4, 2021Applicant: MOTIONAL AD LLCInventors: Junsung KIM, Yunpeng XU, Vasudeva PAI MELGANGOLLI, Brett SANDLER, Scott SWEENY
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Publication number: 20200311156Abstract: Techniques of inferring an organic website URL of an organization based on a web search result are provided. A query that includes an organization name is sent to a search engine and a set of search results is received from the search engine as a result of the query. Each search result in the set of search results includes a URL for the organization website address. For each search result in the set of search results, a set of feature values that is associated with each search result is identified. The set of feature values is inputted to a prediction model that generates a prediction, and based on the prediction, a determination of whether to associate the URL of each search result with the organization name is made.Type: ApplicationFiled: March 29, 2019Publication date: October 1, 2020Inventors: Junzhe Miao, Yunpeng Xu, Wenxuan Gao
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Publication number: 20200159930Abstract: Among other things, we describe systems and method for implementing data security in an autonomous vehicle system. The systems and methods can include inter-process communication security via key management, in which asymmetric cryptography and other validation techniques are used to validate data received from sensors. The systems and method can also include penetrative testing, in which valid sensor inputs are modified and transmitted throughout a distributed network through one or more sensors.Type: ApplicationFiled: October 30, 2019Publication date: May 21, 2020Inventors: Rajesh K. Venkateswaran, Anurag Sanu, Junsung Kim, Dana Miller, Brett Sandler, Silvio Maeta, James Esper, Vasudeva Pai Melgangolli, Yunpeng Xu, Michael Maass, Parth Shah, Scott Sweeny
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Publication number: 20200097605Abstract: A system and method are provided for automatic identification, extraction, and validation of data pertaining to receiving entity events (REE). Feature (or attribute) values associated with web content are identified. The web content may contain news and features on current/past affairs. The identified feature values are considered by a rule-based or a machine-learned model and, based upon output of the model, a determination as to whether the set of data comprises a REE is made. If the determination is positive, then multiple data items are extracted from the set of data and, optionally, from other data from the source.Type: ApplicationFiled: September 25, 2018Publication date: March 26, 2020Inventors: Jingyuan Liu, Xiaoqiang Luo, Tzu Ming Kuo, Marcello Oliva, Yunpeng Xu
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Patent number: 10538711Abstract: A process for converting naphtha, lower olefin, light aromatic hydrocarbon, and gasoline with a high octane number by combining catalytic cracking of naphtha with steam cracking of lower alkane and catalytic cracking of higher alkanes and higher olefins. The process increases the yield of product with high value and significantly decreases the yield of low value product. At the same time, the power consumption is decreased as a whole since most reactants are converted in catalytic cracking at a lower temperature.Type: GrantFiled: June 2, 2015Date of Patent: January 21, 2020Assignees: SABIC GLOBAL TECHNOLOGIES B.V., DALIAN INSTITUTE OF CHEMICAL PHYSICS, CHINESE ACADEMY OF SCIENCESInventors: Peng Xie, Mingzhi Li, Yunpeng Xu, Guangye Liu, Zhongmin Liu, Haitao Liu
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Publication number: 20190197176Abstract: Techniques for identifying relationships between entities using machine learning are disclosed herein.Type: ApplicationFiled: December 21, 2017Publication date: June 27, 2019Inventors: Xiaoqiang Luo, Yunpeng Xu, Marcello Oliva
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Patent number: 10252917Abstract: Provided is a method for preparing a Y type molecular sieve having a high silica-to-alumina ratio, comprising: mixing deionized water, a silicon source, an aluminum source, an alkali source, and a tetraalkylammoniumcation source as a template agent to obtain an initial gel mixture; after aging the initial gel mixture at an appropriate temperature, feeding the gel mixture into a high pressure synthesis kettle for crystallization; separating a solid product, and drying to obtain the Y type molecular sieve having a high silica-to-alumina ratio. The method provides a phase-pure Y type molecular sieve having a high crystallinity, the SiO2/Al2O3 thereof being not less than 6.Type: GrantFiled: December 5, 2014Date of Patent: April 9, 2019Assignee: DALIAN INSTITUTE OF CHEMICAL PHYSICS, CHINESE ACADEMY OF SCIENCESInventors: Danhua Yuan, Dawei He, Zhijia Song, Yunpeng Xu, Zhongmin Liu
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Publication number: 20180163147Abstract: Disclosed is a process for converting naphtha. Lower olefin, light aromatic hydrocarbon, and gasoline with high octane number are produced through combining catalytic cracking of naphtha with steam cracking of lower alkane and catalytic cracking of higher alkane and higher olefin. The process increases the yield of product with high value and decreases the yield of product with low value significantly. At the same time, the power consumption is decreased as a whole since most reactants are converted in catalytic cracking at lower temperature.Type: ApplicationFiled: June 2, 2015Publication date: June 14, 2018Inventors: Peng XIE, Mingzhi LI, Yunpeng XU, Guangye LIU, Zhongmin LIU, Haitao LIU
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Publication number: 20170260059Abstract: Provided is a method for preparing a Y type molecular sieve having a high silica-to-alumina ratio, comprising: mixing deionized water, a silicon source, an aluminum source, an alkali source, and a tetraalkylammoniumcation source as a template agent to obtain an initial gel mixture; after aging the initial gel mixture at an appropriate temperature, feeding the gel mixture into a high pressure synthesis kettle for crystallization; separating a solid product, and drying to obtain the Y type molecular sieve having a high silica-to-alumina ratio. The method provides a phase-pure Y type molecular sieve having a high crystallinity, the SiO2/Al2O3 thereof being not less than 6.Type: ApplicationFiled: December 5, 2014Publication date: September 14, 2017Inventors: Danhua YUAN, Dawei HE, Zhijia Song, Yunpeng XU, Zhongmin LIU
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Patent number: 9738538Abstract: A method for preparing a NaY molecular sieve having a high silica-to-alumina ratio, wherein deionized water, a silicon source, an aluminum source, an alkali source, and ILs as a template agent are mixed to obtain an initial gel mixture; the initial gel mixture is maintained at a proper temperature and aged, then fed into a high pressure synthesis kettle for crystallization; the solid product is separated and dried, to obtain the NaY molecular sieve having a high silica-to-alumina ratio, wherein the ILs is a short-chain alkylimidazolium ionic liquid, the template agent is less volatile, and the resultant high-silicon Y molecular sieve has a high crystallinity and a silica-to-alumina ratio of 6 or more.Type: GrantFiled: December 9, 2013Date of Patent: August 22, 2017Assignee: DALIAN INSTITUTE OF CHEMICAL PHYSICS, CHINESE ACADEMY OF SCIENCESInventors: Danhua Yuan, Xinglong Dong, Yunpeng Xu, Zhongmin Liu, Kunyuan Wang, Wei Huang
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Publication number: 20160304354Abstract: A method for preparing a NaY molecular sieve having a high silica-to-alumina ratio, wherein deionized water, a silicon source, an aluminum source, an alkali source, and ILs as a template agent are mixed to obtain an initial gel mixture; the initial gel mixture is maintained at a proper temperature and aged, then fed into a high pressure synthesis kettle for crystallization; the solid product is separated and dried, to obtain the NaY molecular sieve having a high silica-to-alumina ratio, wherein the ILs is a short-chain alkylimidazolium ionic liquid, the template agent is less volatile, and the resultant high-silicon Y molecular sieve has a high crystallinity and a silica-to-alumina ratio of 6 or more.Type: ApplicationFiled: December 9, 2013Publication date: October 20, 2016Inventors: Danhua YUAN, Xinglong DONG, Yunpeng XU, Zhongmin LIU, Kunyuan WANG, Wei HUANG
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Patent number: 9334405Abstract: The present invention refers to a chromium-free insulation coating material for non-oriented silicon steel, comprising, in parts by weight, the following components: metal dihydrogen phosphate salt of 100 parts, epoxy resin of 10˜60 parts, naphthenate drier or isooctanoate metal salt drier of 0.001˜10 parts, organic solvent of 0.001˜100 parts and pure water of 60˜2000 parts. The metal dihydrogen phosphate salt is Al(H2PO4)3, Mg(H2PO4)2, Ca(H2PO4)2 or Zn(H2PO4)2; the epoxy resin is water-soluble epoxy resin or epoxy resin emulsion. Chromium-free insulation coating material of the present invention, after being coated on non-oriented silicon steel, renders highly transparent appearance, and has excellent insulativity, corrosion resistance, adhesiveness, weldability and manufacturability, so as to eliminate defects of the existing chromium-free coating, such as sticky and un-wear-resistant and to meet environment protection requirements.Type: GrantFiled: April 13, 2011Date of Patent: May 10, 2016Assignee: Baoshan Iron & Steel Co., LTD.Inventors: Yunpeng Xu, Yongjie Yang, Dengfeng Li, Yaming Ji, Zipeng Zhao, Lingyun Chen, Xiao Chen, Jie Huang
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Patent number: 9212116Abstract: The present invention relates to a method for producing cresol from phenol and methanol via gas phase alkylation, in which phenol and methanol are preheated and mixed with diluent gas, then the mixture continuously go through a catalyst bed comprising the catalyst for alkylation of phenol with methanol, to produce cresol by gas phase reaction at the reaction temperature of 200˜500° C. and the weight hourly space velocity of 0.5˜20 h?1. The catalyst for alkylation of phenol with methanol is obtained by modification steps and using ZSM-5 zeolite, MCM-22 zeolite or Beta zeolite as an active composition. Using phenol and methanol as feedstock, the cresol selectivity can reach to 90%, and the p-cresol selectivity can reach to 58%. The catalyst is environmental friendly and non-corrosive to the equipment with a good stability and a broad prospect in industrial application.Type: GrantFiled: July 24, 2012Date of Patent: December 15, 2015Assignee: Dalian Institute of Chemical Physics, Chinese Academy of SciencesInventors: Kunyuan Wang, Yunpeng Xu, Zhongmin Liu