Patents by Inventor Xuemin Li
Xuemin Li 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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Patent number: 11968920Abstract: A system for multi-channel data acquisition and precision irrigation and fertilizer application control of crops involving the following steps: obtaining a soil moisture content and a plant status parameter for plants within each homogeneous area; calculating a required soil moisture content for plants within the homogeneous area based on a difference between the required soil moisture content for plants within the planting area and the soil moisture content for plants within the homogeneous area; obtaining types and quality of required fertilizers for plants within the homogeneous area based on the plant status parameter for plants within the homogeneous area; blending an irrigation water and fertilizer solution required by plants within the homogeneous area; and irrigating plants within each homogeneous area according to the irrigation water and fertilizer solution required by plants within the homogeneous area.Type: GrantFiled: October 17, 2023Date of Patent: April 30, 2024Assignee: Institute of Environment and Sustainable Development in Agriculture, CAASInventors: Daozhi Gong, Lili Gao, Xurong Mei, Weiping Hao, Haoru Li, Xuemin Hou, Xiaojie Li
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Patent number: 11970661Abstract: A combined catalytic viscosity reducing system includes a catalyst slug, a heat generating system slug, a gas injection slug, and a water-soluble viscosity reducing system slug. The catalyst slug includes 10%-15% of azacarbene iron, 15%-30% of tert-butyl hydroperoxide, 2%-5% of phosphoric acid, 2%-5% of hydrogen donor, and 0.5%-1% of emulsifier agent, and the others are solvent. The heat generating system slug includes 10%-30% of NaNO2, 8%-25% of NH4Cl, and 3%-10% of acid initiator, and the others are water, totaling 100%. The water-soluble viscosity reducing system slug, according to mass percentage, includes 0.2%-0.5% of surfactant and 2%-10% of alkali, and the others are water. The combined catalytic viscosity reducing system can effectively reduce viscosity without injecting steam, and the viscosity reduction rate can reach 96.5%.Type: GrantFiled: June 2, 2022Date of Patent: April 30, 2024Assignee: YANGTZE UNIVERSITYInventors: Xuemin Yan, Peiyue Wu, Hao Li, Huan Yang, Zhaofei Ma, Zhongfu Cheng, Fei Deng
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Patent number: 11963483Abstract: Disclosed is a straw crushing device capable of driving a sharpening structure, relating to the field of straw crushing. The straw crushing device includes a main housing, the main housing is internally provided with a crushing chamber and a suction chamber, a feeding nozzle is installed outside the main housing, and the feeding nozzle communicates with a feeding end of the crushing chamber. A spline transmission shaft is installed inside the main housing, and penetrates through the crushing chamber and the suction chamber. A driving motor is installed outside the main housing, and the driving motor is connected to the spline transmission shaft. A Y-shaped tool rest is installed on the spline transmission shaft, and the Y-shaped tool rest is located in the crushing chamber.Type: GrantFiled: December 20, 2023Date of Patent: April 23, 2024Assignee: Institute of Environment and Sustainable Development in Agriculture, CAASInventors: Xurong Mei, Lili Gao, Daozhi Gong, Weiping Hao, Haoru Li, Xuemin Hou, Xiaojie Li
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Publication number: 20240120568Abstract: Among other things, the present disclosure relates to re-purposing used lithium-ion batteries. The present disclosure includes treating an electrode using a solvent prior to electrochemically relithiating the electrode. In some embodiments, the relithiation may be done using a roll-to-roll device, wherein the electrode may be secured on a first pin and a second pin, then it may be unwound and submerged in an electrolyte solution. Lithium ions may be inserted into the electrode using a voltage. The layer of lithium may provide lithium ions to the electrode.Type: ApplicationFiled: December 5, 2023Publication date: April 11, 2024Inventors: Kandler Alan SMITH, Shriram SANTHANAGOPALAN, Nathaniel Alexander SUNDERLIN, Andrew Michael COLCLASURE, Chunmei BAN, Xuemin LI, Judy C. NETTER, Donal Patrick FINEGAN, Kaitlin Elizabeth FINK, Jaclyn Elizabeth COYLE
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Patent number: 11870044Abstract: Among other things, the present disclosure relates to re-purposing used lithium-ion batteries. The present disclosure includes treating an electrode using a solvent prior to electrochemically relithiating the electrode. In some embodiments, the relithiation may be done using a roll-to-roll device, wherein the electrode may be secured on a first pin and a second pin, then it may be unwound and submerged in an electrolyte solution. Lithium ions may be inserted into the electrode using a voltage. The layer of lithium may provide lithium ions to the electrode.Type: GrantFiled: October 29, 2021Date of Patent: January 9, 2024Assignee: Alliance for Sustainable Energy, LLCInventors: Kandler Alan Smith, Shriram Santhanagopalan, Nathaniel Alexander Sunderlin, Andrew Michael Colclasure, Chunmei Ban, Xuemin Li, Judy C. Netter, Donal Patrick Finegan, Kaitlin Elizabeth Fink, Jaclyn Elizabeth Coyle
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Patent number: 11664966Abstract: A co-frequency co-time full duplex (CCFD) signal receiving method includes: taking the sent baseband signal as the self-interference reference signal, reconstructing self-interference, and then performing primary self-interference cancellation on the received signal; processing, by using a timing synchronization loop, the signal after the primary self-interference cancellation, realizing timing recovery at the optimal sampling point of the useful signal through resampling a, and controlling resampling b1 and resampling b2 after performing low-pass filtering on the timing error signal in the timing synchronization loop, to recover the optimal sampling points of the self-interference reference signal and the received signal respectively; and performing joint self-interference cancellation and equalization on the resampled self-interference reference signal and the resampled received signal, and receiving the useful signal through signal demodulation.Type: GrantFiled: December 6, 2022Date of Patent: May 30, 2023Assignee: ZHEJIANG LABInventors: Changming Zhang, Xianbin Yu, Xuemin Li, Jie Shen
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Publication number: 20230096059Abstract: A co-frequency co-time full duplex (CCFD) signal receiving method includes: taking the sent baseband signal as the self-interference reference signal, reconstructing self-interference, and then performing primary self-interference cancellation on the received signal; processing, by using a timing synchronization loop, the signal after the primary self-interference cancellation, realizing timing recovery at the optimal sampling point of the useful signal through resampling a, and controlling resampling b1 and resampling b2 after performing low-pass filtering on the timing error signal in the timing synchronization loop, to recover the optimal sampling points of the self-interference reference signal and the received signal respectively; and performing joint self-interference cancellation and equalization on the resampled self-interference reference signal and the resampled received signal, and receiving the useful signal through signal demodulation.Type: ApplicationFiled: December 6, 2022Publication date: March 30, 2023Applicant: ZHEJIANG LABInventors: Changming ZHANG, Xianbin YU, Xuemin LI, Jie SHEN
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Publication number: 20220149450Abstract: Among other things, the present disclosure relates to re-purposing used lithium-ion batteries. The present disclosure includes treating an electrode using a solvent prior to electrochemically relithiating the electrode. In some embodiments, the relithiation may be done using a roll-to-roll device, wherein the electrode may be secured on a first pin and a second pin, then it may be unwound and submerged in an electrolyte solution. Lithium ions may be inserted into the electrode using a voltage. The layer of lithium may provide lithium ions to the electrode.Type: ApplicationFiled: October 29, 2021Publication date: May 12, 2022Inventors: Kandler Alan SMITH, Shriram SANTHANAGOPALAN, Nathaniel Alexander SUNDERLIN, Andrew Michael COLCLASURE, Chunmei BAN, Xuemin LI, Judy C. NETTER, Donal Patrick FINEGAN, Kaitlin Elizabeth FINK, Jaclyn Elizabeth COYLE
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Patent number: 10399853Abstract: Disclosed herein are methods of producing metal sulfide materials, including cathode materials. In some embodiments, the metal sulfide material comprises a secondary cluster of metal sulfide nanoparticles surrounded by a carbon layer. The carbon layer may be created by carbonizing one or more polymer layers disposed about the secondary cluster. The carbonized layer may aid in optimizing performance of the cathode material. Also disclosed herein are methods, processes, devices, and systems for removing hydrogen sulfide from a waste stream. In some embodiments, the waste stream containing hydrogen sulfide is a gas. The waste stream can be combined with a solvent containing a metal-catalyst complex, and the reaction of hydrogen sulfide with the metal results in production of a hydrogen gas and a solid comprising metal sulfide.Type: GrantFiled: January 19, 2017Date of Patent: September 3, 2019Assignee: Colorado School of MinesInventors: Yongan Yang, Colin A. Wolden, Xuemin Li, Rachel Morrish
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Patent number: 10284712Abstract: A voice quality evaluation method, apparatus, and system comprises an obtained voice data packet is parsed, and a frame content characteristic of the data packet is determined according to a parse result, for example, the frame content characteristic is a silence frame and a voice frame. Then, a voice sequence is divided into statements according to the determined frame content characteristic, and the statements are divided into multiple frame loss events; after non-voice parameters are extracted according to the frame loss events, voice quality of each statement is evaluated according to a preset voice quality evaluation model and according to the non-voice parameters. Finally, voice quality of the entire voice sequence is evaluated according to the voice quality of each statement. By using this solution, prediction precision can be improved significantly, and accuracy of an evaluation result can be improved.Type: GrantFiled: August 26, 2016Date of Patent: May 7, 2019Assignee: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Fuzheng Yang, Xuemin Li, Liangliang Jiang, Wei Xiao
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Publication number: 20180016144Abstract: Disclosed herein are methods of producing metal sulfide materials, including cathode materials. In some embodiments, the metal sulfide material comprises a secondary cluster of metal sulfide nanoparticles surrounded by a carbon layer. The carbon layer may be created by carbonizing one or more polymer layers disposed about the secondary cluster. The carbonized layer may aid in optimizing performance of the cathode material. Also disclosed herein are methods, processes, devices, and systems for removing hydrogen sulfide from a waste stream. In some embodiments, the waste stream containing hydrogen sulfide is a gas. The waste stream can be combined with a solvent containing a metal-catalyst complex, and the reaction of hydrogen sulfide with the metal results in production of a hydrogen gas and a solid comprising metal sulfide.Type: ApplicationFiled: January 19, 2017Publication date: January 18, 2018Inventors: Yongan Yang, Colin A. Wolden, Xuemin Li, Rachel Morrish
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Publication number: 20160366274Abstract: A voice quality evaluation method, apparatus, and system comprises an obtained voice data packet is parsed, and a frame content characteristic of the data packet is determined according to a parse result, for example, the frame content characteristic is a silence frame and a voice frame. Then, a voice sequence is divided into statements according to the determined frame content characteristic, and the statements are divided into multiple frame loss events; after non-voice parameters are extracted according to the frame loss events, voice quality of each statement is evaluated according to a preset voice quality evaluation model and according to the non-voice parameters. Finally, voice quality of the entire voice sequence is evaluated according to the voice quality of each statement. By using this solution, prediction precision can be improved significantly, and accuracy of an evaluation result can be improved.Type: ApplicationFiled: August 26, 2016Publication date: December 15, 2016Inventors: Fuzheng Yang, Xuemin Li, Liangliang Jiang, Wei Xiao
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Patent number: D1025313Type: GrantFiled: January 31, 2024Date of Patent: April 30, 2024Inventor: Xuemin Li