Patents by Inventor Kang Du
Kang Du 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: 11995385Abstract: A matching design method of static stiffness for a combined box body structure of a large reducer is provided, including the following steps, building a transmission system model and an initial structure model and obtaining load data; performing a statics analysis; obtaining primary design variables and design responses; constructing design variables; constructing a static stiffness matching target of a combined box body; constructing an objective function; setting constraint conditions; constructing a response surface proxy model; constructing a static stiffness matching optimization model of combined box body; obtaining optimal design variables and obtaining an optimal structure model of the box body; performing the statics analysis on the optimal structure model of the box body, and performing a contrastive analysis with statics analysis results of the corrected box body two-dimensional unit finite element model to confirm optimization effects.Type: GrantFiled: January 16, 2024Date of Patent: May 28, 2024Assignee: University of Shanghai for Science and TechnologyInventors: Lihui Zhao, Dongdong Zhang, Shuo Weng, Jinzhi Feng, Kang Du, Zhen Wang
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Publication number: 20240152672Abstract: A method and system for predicting water flooding recovery of fault block reservoirs considering a whole process optimization includes: determining influencing factors in water flooding recovery of fault block reservoirs; screening master parameters of the water flooding recovery of the fault block reservoirs; determining a single-factor correlation between the water flooding recovery of the fault block reservoirs and the master parameters; designing multi-factor orthogonal experimental schemes; performing a whole-process water flooding optimization for each of the experimental schemes including separate-layer injection and production, well-type conversion, and injection and production adjustment, to obtain the maximum water flooding recovery; and determining a prediction model of the water flooding recovery of the fault block reservoirs using least square method based on results of the whole process optimization of orthogonal experiments, further obtaining a prediction model of the water flooding recovery ofType: ApplicationFiled: December 19, 2022Publication date: May 9, 2024Inventors: Jian Hou, Kang Zhou, Shuai Liu, Zhibin An, Qingjun Du, Bei Wei, Yongge Liu
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Publication number: 20240141766Abstract: A bidirectional self-regulating chemical flooding method and system for enhancing oil recovery includes: determining the average particle size of dispersed phase droplets under stable seepage flow of an oil-in-water emulsion according to the average reservoir permeability; determining injection concentration of an emulsifier which matches a target reservoir according to reservoir seepage velocity; under a condition of keeping the injection concentration of the emulsifier constant, determining the optimal injection concentration of a polymer which matches the injection concentration of the emulsifier through core flooding experiments with the maximum equivalent ton oil accumulation as a target; determining total injection amount of the emulsifier and total injection amount of the polymer for implementing well group units; and optimizing injection amount of the emulsifier and the polymer in each single well by using a numerical simulator of a chemical flooding reservoir.Type: ApplicationFiled: November 21, 2022Publication date: May 2, 2024Inventors: Jian Hou, Kang Zhou, Zhinbin An, Qingjun Du, Yongge Liu, Bei Wei, Dejun Wu, Shuai Liu
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Patent number: 11912932Abstract: An encapsulated polymer flooding method and system for enhancing oil recovery includes: (1) determining reservoir parameters, a well deployment, and a development dynamic state of a target oil reservoir; (2) determining a near-wellbore targeted profile control area and a far-wellbore targeted viscosification area; (3) designing and synthesizing an encapsulated polymer according to conditions of the target oil reservoir; (4) evaluating and determining whether the anti-shearing performance, the sustained release and viscosification performance, the injection performance, and the profile control performance of the encapsulated polymer meet expected performance requirements based on laboratory tests; (5) formulating an injection scheme for an encapsulated polymer flooding field; and (6) monitoring the development dynamic state of the oil reservoir; according to the present disclosure, the polymer is wrapped with a shell layer, which greatly reduces the shear degradation during injection of the polymer and effectiType: GrantFiled: June 21, 2023Date of Patent: February 27, 2024Assignee: CHINA UNIVERSITY OF PETROLEUM (EAST CHINA)Inventors: Jian Hou, Bei Wei, Yongsheng Liu, Kang Zhou, Qingjun Du, Yongge Liu
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Publication number: 20240050577Abstract: The disclosure relates to bifunctional CDK-modulating compounds having the structure W-L-T, where W is a targeting group that binds specifically to a CDK protein, T is an E3-ligase binding group, and L is absent or is a bivalent linking group that connects W and T together via a covalent linkage. Compounds and pharmaceutical compositions thereof can promote degradation of one or more CDK protein in a cell and are thus useful for treating, inhibiting, and preventing CDK-associated diseases, disorders and conditions, including cancers.Type: ApplicationFiled: April 26, 2023Publication date: February 15, 2024Inventors: Jiasheng LV, Yao LIU, Xiangyang LI, Xianfeng LIN, Qisheng LIU, Yuanhong GU, Kang DU, Zhihong ZHANG, Mengchao SHI, Yuhua ZHANG, Jian GE, Tianlun ZHOU, Xiangsheng YE, Xianqi KONG, Dawei CHEN
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Publication number: 20230274891Abstract: Method as well as resulting electrode and capacitor. The method includes the following process steps: •. in a surface of a metal film substrate, etching microstructures with a predetermined roughness, •. depositing in said microstructures a metal or compound layer, •. converting said metal or compounds layer into metal nanoparticles, constituting a catalyst, •. growing cross linked nanotubes in said microstructures at said metal nanoparticle acting as catalysts.Type: ApplicationFiled: September 29, 2021Publication date: August 31, 2023Applicant: University of South-Eastern NorwayInventors: Kang DU, Xuyuan CHEN, Per Alfred ØHLCKERS
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Patent number: 11594091Abstract: A method for controlling a gate device in connection with at least one gate and two frameworks connected to the at least one gate is provided. The method may include identifying an authorization status of an object. The method may include detecting pressure signals caused by the object at a first moment, if the authorization status is satisfied. The method may include determining whether or not an illegal tailgating event occurred based on the pressure signals. The method may further include generating a control signal for opening the at least one gate to facilitate the object to pass through the at least one gate in response to a determination that the illegal tailgating event did not occur.Type: GrantFiled: June 16, 2021Date of Patent: February 28, 2023Assignee: ZHEJIANG DAHUA TECHNOLOGY CO., LTD.Inventors: Jiacai Song, Kang Du
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Patent number: 11523003Abstract: A system and method for adjusting power consumption of a power consumer (e.g., an intercom device) may include a power supply, the power consumer connected to the power supply through a transmitting device, and at least one processor. The at least one processor may be configured to obtain a first voltage associated with the power supply and a second voltage associated with the power consumer, and adjust an operation status of the power consumer at least based on the first voltage and the second voltage. The first voltage may be an output voltage of the power supply, and the second voltage may be an input voltage of the power consumer.Type: GrantFiled: February 5, 2021Date of Patent: December 6, 2022Assignee: ZHEJIANG DAHUA TECHNOLOGY CO., LTD.Inventors: Jiahuan He, Kang Du
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Patent number: 11487995Abstract: Embodiments of the present disclosure disclose a method and apparatus for determining image quality. The method comprises: acquiring a to-be-recognized image and facial region information used for indicating a facial region in the to-be-recognized image; extracting a face image from the to-be-recognized image on the basis of the facial region information; inputting the face image into a pre-trained convolutional neural network to obtain probabilities of each pixel comprised in the face image belonging to a category indicated by each category identifier in a preset category identifier set; inputting the face image into a pre-trained key face point positioning model to obtain coordinates of each key face point comprised in the face image; determining a probability of the face image being obscured on the basis of the probabilities and the coordinates; and determining whether the quality of the face image is up to standard on the basis of the probability.Type: GrantFiled: July 31, 2018Date of Patent: November 1, 2022Assignee: Baidu Online Network Technology (Beijing) Co., Ltd.Inventor: Kang Du
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Publication number: 20210312737Abstract: A method for controlling a gate device in connection with at least one gate and two frameworks connected to the at least one gate is provided. The method may include identifying an authorization status of an object. The method may include detecting pressure signals caused by the object at a first moment, if the authorization status is satisfied. The method may include determining whether or not an illegal tailgating event occurred based on the pressure signals. The method may further include generating a control signal for opening the at least one gate to facilitate the object to pass through the at least one gate in response to a determination that the illegal tailgating event did not occur.Type: ApplicationFiled: June 16, 2021Publication date: October 7, 2021Applicant: ZHEJIANG DAHUA TECHNOLOGY CO., LTD.Inventors: Jiacai SONG, Kang DU
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Publication number: 20210160379Abstract: A system and method for adjusting power consumption of a power consumer (e.g., an intercom device) may include a power supply, the power consumer connected to the power supply through a transmitting device, and at least one processor. The at least one processor may be configured to obtain a first voltage associated with the power supply and a second voltage associated with the power consumer, and adjust an operation status of the power consumer at least based on the first voltage and the second voltage. The first voltage may be an output voltage of the power supply, and the second voltage may be an input voltage of the power consumer.Type: ApplicationFiled: February 5, 2021Publication date: May 27, 2021Applicant: ZHEJIANG DAHUA TECHNOLOGY CO., LTD.Inventors: Jiahuan HE, Kang DU
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Patent number: 10936919Abstract: The present disclosure discloses a method and apparatus for detecting a human face. A specific embodiment of the method comprises: acquiring a to-be-detected image; inputting the to-be-detected image into a pre-trained first convolutional neural network to obtain facial feature information, the first convolutional neural network being used to extract a facial feature; inputting the to-be-detected image into a pre-trained second convolutional neural network to obtain semantic feature information, the second convolutional neural network being used to extract a semantic features of the image; and analyzing the facial feature information and the semantic feature information to generate a face detection result. This embodiment improves accuracy of a detection result of a blurred image.Type: GrantFiled: August 1, 2018Date of Patent: March 2, 2021Assignee: BAIDU ONLINE NETWORK TECHNOLOGY (BEIJING) CO., LTD.Inventor: Kang Du
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Patent number: 10931831Abstract: A system and method for adjusting power consumption of a power consumer (e.g., an intercom device) may include a power supply, the power consumer connected to the power supply through a transmitting device, and at least one processor. The at least one processor may be configured to obtain a first voltage associated with the power supply and a second voltage associated with the power consumer, and adjust an operation status of the power consumer at least based on the first voltage and the second voltage. The first voltage may be an output voltage of the power supply, and the second voltage may be an input voltage of the power consumer.Type: GrantFiled: September 9, 2019Date of Patent: February 23, 2021Assignee: ZHEJIANG DAHUA TECHNOLOGY CO., LTD.Inventors: Jiahuan He, Kang Du
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Patent number: 10902245Abstract: Embodiments of the present disclosure disclose a method and apparatus for facial recognition. A specific embodiment of the method comprises: extracting a to-be-recognized dark light image captured in a dark light environment; inputting the dark light image into a pre-trained first convolutional neural network to obtain a target image after the dark light image is preprocessed, the first convolutional neural network being used to preprocess the dark light image; and inputting the target image into a pre-trained second convolutional neural network to obtain a facial recognition result, the second convolutional neural network being used to represent a corresponding relationship between the image and the facial recognition result. This embodiment improves accuracy of the facial recognition on the image captured in the dark light environment.Type: GrantFiled: July 31, 2018Date of Patent: January 26, 2021Assignee: Baidu Online Network Technology (Beijing) Co., Ltd.Inventor: Kang Du
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Patent number: 10853623Abstract: A method and an apparatus for generating information are provided. The method comprises: acquiring a to-be-detected image and facial region information used to indicate a facial region in the to-be-detected image and obtained by previously performing face detection on the to-be-detected image; extracting a facial image from the to-be-detected image based on the facial region information; inputting the facial image into a pre-trained convolutional neural network to obtain image feature information, the convolutional neural network being used to extract an image feature; analyzing the image feature information to determine a probability of each pixel point included in the facial image belonging to a category indicated by each category identifier in a preset category identifier set; and generating information for indicating the category to which the each pixel point belongs based on the probability. This embodiment implements generation of information full of pertinence.Type: GrantFiled: August 1, 2018Date of Patent: December 1, 2020Assignee: BAIDU ONLINE NETWORK TECHNOLOGY (BEIJING) CO., LTD.Inventor: Kang Du
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Patent number: 10691928Abstract: Embodiments of the present disclosure disclose a method and apparatus for facial recognition. A specific embodiment of the method includes: acquiring a to-be-recognized image; inputting the to-be-recognized image into a pre-trained first convolutional neural network to obtain complete facial feature information and partial facial feature information, the first convolutional neural network being used to extract a complete facial feature and a partial facial feature; and inputting the complete facial feature information and the partial facial feature information into a pre-trained second convolutional neural network to obtain a facial recognition result, the second convolutional neural network being used to represent a correlation between the facial recognition result, and the complete facial feature information and the partial facial feature information. This embodiment improves the accuracy of the recognition result in a situation where a face is partially covered.Type: GrantFiled: July 31, 2018Date of Patent: June 23, 2020Assignee: Baidu Online Network Technology (Beijing) Co., Ltd.Inventor: Kang Du
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Publication number: 20200007692Abstract: A system and method for adjusting power consumption of a power consumer (e.g., an intercom device) may include a power supply, the power consumer connected to the power supply through a transmitting device, and at least one processor. The at least one processor may be configured to obtain a first voltage associated with the power supply and a second voltage associated with the power consumer, and adjust an operation status of the power consumer at least based on the first voltage and the second voltage. The first voltage may be an output voltage of the power supply, and the second voltage may be an input voltage of the power consumer.Type: ApplicationFiled: September 9, 2019Publication date: January 2, 2020Applicant: ZHEJIANG DAHUA TECHNOLOGY CO., LTD.Inventors: Jiahuan HE, Kang DU
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Publication number: 20190312299Abstract: Disclosed herein is a non-flammable sodium-ion battery having a cathode and an anode and which uses an electrolyte that includes NaBF4 and a glyme solvent, where the battery has an average voltage of from 1.5 V to 6.0 V and has a coulombic efficiency after 5 charge/discharge cycles of at least 90%.Type: ApplicationFiled: October 26, 2017Publication date: October 10, 2019Applicants: National University of Singapore, National University of SingaporeInventors: Balaya Palani, Ashish Rudola, Kang Du, Satyanarayana Reddy Gajjela, Lee Lam Markas Law
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Patent number: 10372571Abstract: The present disclosure discloses a method and an apparatus for testing the compatibility of a 3D engine. The method includes: acquiring a hardware capability parameter of a graphics card to be simulated, the hardware capability parameter recording a capability supported by the graphics card; running a predetermined 3D engine according to the hardware capability parameter; and determining, according to a result of running the 3D engine, whether the 3D engine is compatible with the graphics card to be simulated. The present disclosure solves the technical problem that a hardware testing environment needs to be repeatedly built to test the compatibility of the 3D engine on different graphics cards, thereby achieving technical effects of simulating different virtual graphics cards to implement testing in a hardware testing environment built once, and shortening a testing period.Type: GrantFiled: February 11, 2015Date of Patent: August 6, 2019Assignee: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITEDInventors: Wensheng Cao, Yanqing Jing, Jun Li, Kang Du, Tianping Geng
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Publication number: 20190102605Abstract: A method and an apparatus for generating information are provided. The method comprises: acquiring a to-be-detected image and facial region information used to indicate a facial region in the to-be-detected image and obtained by previously performing face detection on the to-be-detected image; extracting a facial image from the to-be-detected image based on the facial region information; inputting the facial image into a pre-trained convolutional neural network to obtain image feature information, the convolutional neural network being used to extract an image feature; analyzing the image feature information to determine a probability of each pixel point included in the facial image belonging to a category indicated by each category identifier in a preset category identifier set; and generating information for indicating the category to which the each pixel point belongs based on the probability. This embodiment implements generation of information full of pertinence.Type: ApplicationFiled: August 1, 2018Publication date: April 4, 2019Inventor: Kang DU