Patents by Inventor Lu QIU
Lu QIU 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: 20240131222Abstract: The present invention relates to a transdermal photocuring forming hydrogel with biological activity. The hydrogel can release recombinant collagen with biological activity, the recombinant collagen includes a sequence as shown in SEQ ID No. 1, an amino acid sequence of the recombinant collagen includes N basic repetitive units, and each basic repetitive unit includes n1 of the following characteristic amino acid sequences: “G-Xaa1-Xaa2-G-E-Xaa3”; the 3? end and the 5? end of the basic repetitive unit are connected to form the above characteristic amino acid sequence. The recombinant collagen provided by the present invention has relatively obvious integrin binding activity, and has the effects of promoting cell adhesion, proliferation and differentiation. The hydrogel of the present invention has good biocompatibility and stable quality, which can be cured and formed in situ in a transdermal photo-crosslinking manner after injection, with simple, convenient and controllable operation.Type: ApplicationFiled: October 8, 2023Publication date: April 25, 2024Inventors: Hai LIN, He QIU, Jing WANG, Jian WANG, Yang XU, Lu SONG, Xia YANG, Xingdong ZHANG
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Patent number: 11932578Abstract: A granite stone powder phosphoric acid-based geopolymer and a preparation method thereof are provided. The granite stone powder phosphoric acid-based geopolymer is prepared from following raw materials in parts by weight: 35-70 parts of granite stone powder, 15-50 parts of metakaolin, 8-50 parts of fly ash, 8-30 parts of acid activation solution and 8-30 parts of solvent.Type: GrantFiled: November 7, 2023Date of Patent: March 19, 2024Assignee: Wuhan University of TechnologyInventors: Liuyi Ren, Lu Zhang, Shenxu Bao, Yimin Zhang, Zhiming Qiu, Yuxiao Zhou
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Publication number: 20240068991Abstract: A clamping triaxial seepage and acoustic coupling rock tensile testing machine includes a sample and a scaffold-type tensile testing device. The scaffold-type tensile testing device has an upper chuck and a lower chuck. The upper chuck has an acoustic transmitting channel, one end of which communicating with the outside, and the other end of which having an acoustic transmitting probe. The lower chuck has an acoustic receiving channel, one end of which communicating with the outside, and the other end having acoustic receiving probe. An upper end face of the sample has with a seepage outflow hole while the upper chuck has a seepage outflow channel connected with the seepage outflow hole. A lower end face of the sample has a seepage inflow hole while the lower chuck has a seepage entry channel is connected with the seepage inflow hole.Type: ApplicationFiled: August 25, 2023Publication date: February 29, 2024Inventors: Mancang LIU, Xiaosong QIU, Jianfeng LIU, Yunhe SU, Zhide WU, Lu WANG, Shujuan XU, Xin LAI, Jianxiong YANG, Huining XU, Jianliang PEI, Jinbing WEI
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Systems and methods for operating passive nitrogen oxide adsorbers in exhaust aftertreatment systems
Patent number: 11898483Abstract: A system includes a catalyst for receiving and treating exhaust gas generated by an engine, a passive NOx adsorber (PNA) positioned upstream of the catalyst, a bypass valve positioned upstream of the catalyst and the PNA, and a controller. The controller is configured to, determine that the catalyst is operating under cold start conditions, control the bypass valve to direct exhaust gas to the PNA, determine that the catalyst is no longer operating under cold start conditions and continue to control the bypass valve to direct exhaust gas to the PNA for a predetermined duration, and after the elapse of the predetermined duration, control the bypass valve to direct exhaust gas to the catalyst bypassing the PNA. The controller is also configured to detect a high transient torque demand while the exhaust gas is provided to the PNA, and split the torque demand between the engine and an electric motor.Type: GrantFiled: May 19, 2022Date of Patent: February 13, 2024Assignee: Cummins Inc.Inventors: Jinyong Luo, Xiaobo Song, Xing Jin, David Schmidt, Lu Qiu, Lisa A. Orth-Farrell, Ying Yuan, Manik Narula, Lars K. Henrichsen -
Publication number: 20240034300Abstract: A method includes determining, by a controller, that a transient event for a hybrid vehicle is occurring; determining, by the controller, an increase of power demand for the hybrid vehicle based on the determined transient event; directing, by the controller, an amount of power from an electric motor of the hybrid vehicle to a powertrain of the hybrid vehicle based on the increase in power demand, the amount of power from the electric motor determined based on at least one of a state of charge of a battery of the hybrid vehicle; and increasing, by the controller, an amount of power from an engine of the hybrid vehicle as a power output from the electric motor decays to avoid an engine power output spike from the engine based on the determined increase in power demand.Type: ApplicationFiled: December 8, 2021Publication date: February 1, 2024Applicant: Cummins Inc.Inventors: Lu Qiu, David Schmidt, Yuying Song, Jinyong Luo, Ying Yuan, Manik Narula
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Publication number: 20230311846Abstract: Systems and methods for controlling a hybrid system. For example, a computer-implemented method includes determining a system temperature zone of the aftertreatment system as being in: a first temperature zone below a first temperature threshold, a second temperature zone from the first temperature threshold to a second temperature threshold, or a third temperature zone above the second temperature threshold; determining a power demand corresponding to the operation of the hybrid system as being in: a first power demand zone if the power demand is below a power threshold, or a second power demand zone if the power demand is equal to or greater than the power threshold; and determining a control strategy based at least in part on the determined system temperature zone and the determined power demand.Type: ApplicationFiled: July 20, 2021Publication date: October 5, 2023Inventors: Xing Jin, David Schmidt, Lu Qiu, Lisa A. Orth-Farrell, Ying Yuan, Jinyong Luo, Manik Narula
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Patent number: 11763902Abstract: In certain aspects, a memory device includes a memory cell array having rows of memory cells, word lines respectively coupled to the rows of memory cells, and a peripheral circuit coupled to the memory cell array through the word lines. Each memory cell is configured to store a piece of N-bits data in one of 2N levels, where N is an integer greater than 1. The level corresponds to one of 2N pieces of N-bits data. The peripheral circuit is configured to program, in a first pass, a row of target memory cells, such that each target memory cell is programmed into one of K intermediate levels based on the corresponding piece of N-bits data, wherein 2N-1<K<2N. The peripheral circuit is also configured to program, in a second pass after the first pass, the row of target memory cells, such that each target memory cell is programmed into one of the 2N levels based on the corresponding piece of N-bits data.Type: GrantFiled: September 23, 2021Date of Patent: September 19, 2023Assignee: YANGTZE MEMORY TECHNOLOGIES CO., LTD.Inventors: Ling Chu, Lu Qiu, Yue Sheng
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Publication number: 20220415418Abstract: In certain aspects, a memory device includes a memory cell array having rows of memory cells, word lines respectively coupled to the rows of memory cells, and a peripheral circuit coupled to the memory cell array through the word lines. Each memory cell is configured to store a piece of N-bits data in one of 2N levels, where N is an integer greater than 1. The level corresponds to one of 2N pieces of N-bits data. The peripheral circuit is configured to program, in a first pass, a row of target memory cells, such that each target memory cell is programmed into one of K intermediate levels based on the corresponding piece of N-bits data, wherein 2N?1<K<2N. The peripheral circuit is also configured to program, in a second pass after the first pass, the row of target memory cells, such that each target memory cell is programmed into one of the 2N levels based on the corresponding piece of N-bits data.Type: ApplicationFiled: September 23, 2021Publication date: December 29, 2022Inventors: Ling Chu, Lu Qiu, Yue Sheng
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Publication number: 20220371575Abstract: A hybrid vehicle comprises an engine, an energy storage device, and an aftertreatment system comprising a SCR catalyst configured to treat constituents of an exhaust gas. A controller is operatively coupled to the engine, the energy storage device, and the after treatment system, and configured to estimate an exhaust gas temperature and flow rate of the exhaust gas based on a set of engine operating parameters. The controller determines an exhaust gas cooling rate based on the exhaust gas temperature, flow rate, and a SCR catalyst temperature, and an ambient cooling rate based on an ambient temperature, a vehicle speed and the catalyst temperature. The controller determines a SCR catalyst temperature change rate based on the exhaust gas and ambient cooling rates, and adjusts a load distribution between the engine and the energy storage device based on the SCR catalyst temperature change rate.Type: ApplicationFiled: August 31, 2020Publication date: November 24, 2022Applicant: Cummins Emission Solutions Inc.Inventors: Matthew K. Volmerding, Lu Qiu, Lars Krister Henrichsen, Ying Yuan, Jinyong Luo, Manik Narula
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SYSTEMS AND METHODS FOR OPERATING PASSIVE NITROGEN OXIDE ADSORBERS IN EXHAUST AFTERTREATMENT SYSTEMS
Publication number: 20220275747Abstract: A system includes a catalyst for receiving and treating exhaust gas generated by an engine, a passive NOx adsorber (PNA) positioned upstream of the catalyst, a bypass valve positioned upstream of the catalyst and the PNA, and a controller. The controller is configured to, determine that the catalyst is operating under cold start conditions, control the bypass valve to direct exhaust gas to the PNA, determine that the catalyst is no longer operating under cold start conditions and continue to control the bypass valve to direct exhaust gas to the PNA for a predetermined duration, and after the elapse of the predetermined duration, control the bypass valve to direct exhaust gas to the catalyst bypassing the PNA. The controller is also configured to detect a high transient torque demand while the exhaust gas is provided to the PNA, and split the torque demand between the engine and an electric motor.Type: ApplicationFiled: May 19, 2022Publication date: September 1, 2022Applicant: CUMMINS INC.Inventors: Jinyong Luo, Xiaobo Song, Xing Jin, David Schmidt, Lu Qiu, Lisa A. Orth-Farrell, Ying Yuan, Manik Narula, Lars K. Henrichsen -
Patent number: 10577983Abstract: A power generation system comprising: a liquefied natural gas (LNG) regasification unit configured to perform a regasification process to regasify LNG supplied from an LNG source to produce natural gas, the regasification process producing cold energy; a gas turbine configured to combust the natural gas to output power, the combusting producing an exhaust gas; a thermal storage unit configured to store heat obtained from the exhaust gas; and a Stirling engine configured to output power, the Stirling engine having a hot end heated by the heat stored in the thermal storage unit and a cold end cooled by the cold energy from the regasification process.Type: GrantFiled: September 15, 2016Date of Patent: March 3, 2020Assignee: Nanyang Technological UniversityInventors: Fei Duan, Swapnil Dubey, Fook Hoong Choo, Lu Qiu, Kai Wang
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Publication number: 20180266279Abstract: A power generation system comprising: a liquefied natural gas (LNG) regasification unit configured to perform a regasification process to regasify LNG supplied from an LNG source to produce natural gas, the regasification process producing cold energy; a gas turbine configured to combust the natural gas to output power, the combusting producing an exhaust gas; a thermal storage unit configured to store heat obtained from the exhaust gas; and a Stirling engine configured to output power, the Stirling engine having a hot end heated by the heat stored in the thermal storage unit and a cold end cooled by the cold energy from the regasification process.Type: ApplicationFiled: September 15, 2016Publication date: September 20, 2018Applicant: NANYANG TECHNOLOGICAL UNIVERSITYInventors: Fei DUAN, Swapnil DUBEY, Fook Hoong CHOO, Lu QIU, Kai WANG
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Patent number: D1021920Type: GrantFiled: December 30, 2021Date of Patent: April 9, 2024Assignee: BEIJING ZITIAO NETWORK TECHNOLOGY CO., LTD.Inventors: Zhaoyuan Peng, Yichen Li, Ling Qiu, Lu Zhang
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Patent number: D1021921Type: GrantFiled: December 30, 2021Date of Patent: April 9, 2024Assignee: BEIJING ZITIAO NETWORK TECHNOLOGY CO., LTD.Inventors: Zhaoyuan Peng, Yichen Li, Ling Qiu, Lu Zhang