Patents by Inventor Dandan Wang
Dandan Wang 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: 20230259567Abstract: This application discloses a data processing method performed by a computing device. The method includes: acquiring a search keyword of a user, and determining a plurality of target keywords related to the search keyword. After the plurality of keywords are determined, the search keyword and the plurality of target keywords may further be displayed. When the search keyword and the plurality of target keywords are displayed, the plurality of target keywords are distributed on a periphery of a circle with the search keyword as a center in a dispersed manner to achieve a more convenient and intuitive effect. By using this solution, the plurality of target keywords related to the search keyword can be displayed for the user instead of directly providing the user with search results corresponding to the search keyword, and the user obtains the plurality of target keywords through analysis according to the search results.Type: ApplicationFiled: April 21, 2023Publication date: August 17, 2023Inventors: Jiansu LIN, Fang Liu, Yuqing Meng, Xiaofeng Huang, Weipeng Chen, Zhaohan Gong, Ming Zong, Liwei Chen, Dandan Wang, Yanan Ning
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Publication number: 20230227682Abstract: Provided are an alginate dialdehyde-functionalized material, an alginate dialdehyde-modified material, and preparation methods therefor. Further provided is use of the above materials and methods in the manufacture of antibacterial, antifungal, and antiviral protective products. Raw materials used and the preparation methods are simple, economical, environmentally friendly and easy to scale up, have high inhibitory activity against bacteria, fungi and viruses and have great application potential in the fields of biology, medicine, health, etc.Type: ApplicationFiled: March 3, 2023Publication date: July 20, 2023Inventors: Muhammad Kamaran Khan, Mark Gerard Moloney, Dandan Wang
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Publication number: 20220399532Abstract: Provided are an all-solid-state battery and a preparation method thereof. The all-solid-state battery includes a positive electrode, a negative electrode, and a solid-state electrolyte located between the positive electrode and the negative electrode. The negative electrode includes a first negative electrode and a second negative electrode. The second negative electrode is located on a side of the first negative electrode. The solid-state electrolyte includes a first solid-state electrolyte and a second solid-state electrolyte. The first solid-state electrolyte is located between the positive electrode and the first negative electrode. The second solid-state electrolyte is located between the positive electrode and the second negative electrode. The roughness of the second solid-state electrolyte is greater than the roughness of the first solid-state electrolyte.Type: ApplicationFiled: May 29, 2020Publication date: December 15, 2022Inventors: Yuchuan Feng, Zheng Li, Hongcai He, Ke Zhou, Dandan Wang, Fan Yang
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Publication number: 20220370597Abstract: A recombinant protein and a vaccine composition for porcine epidemic diarrhea (PED) are provided. The recombinant protein is a fusion protein formed by connecting the truncated segment of S protein (Spike protein) from porcine epidemic diarrhea virus (PEDV) in tandem with the Fc fragment of porcine IgG, and the truncated fragment of S protein is preferably selected from N-terminal domain (NTD) with sialic acid binding activity in S1 subunit of S protein, neutralizing epitope domain (COE) and multiple B-cell epitopes in S2 subunit; the vaccine composition contains recombinant protein and adjuvants. The recombinant protein of the application can produce IgG antibody and neutralizing antibody titers of rather high level after immunizing mice, and the proportions of CD3+CD4+, CD3+CD8+ lymphocytes and the concentrations of IFN-? and IL-4 in lymphocytes are significantly increased.Type: ApplicationFiled: January 27, 2022Publication date: November 24, 2022Inventors: Bin Li, Baochao Fan, Danyi Shi, Jinzhu Zhou, Rongli Guo, Kongwang He, Yongxiang Zhao, Xuejiao Zhu, Li Li, Wei Wang, Dandan Wang, Haodan Zhu
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Patent number: 11461482Abstract: According to aspects of the inventive concepts, provided is a method for erasing information based on a dual-security mechanism. A storage medium feature database, an information erasure feature database, and a firmware system feature database are built to match cases for to-be-erased electronic scrap. An erasure solution and a native system data package are generated based on the matching results. The information is erased and an erasure result is evaluated; and the information is recovered on the erased electronic scrap, and a recovery result is evaluated, to implement comprehensive double security evaluation. The information erasure validity of the electronic scrap is checked based on the evaluation results. If an erasure result is invalid, erasure solutions are corrected online based on the evaluation result, until the erasure result is valid and the electronic scrap with a native system recovered is obtained.Type: GrantFiled: March 18, 2020Date of Patent: October 4, 2022Assignee: Beijing University of TechnologyInventors: Jian Tang, Dandan Wang, Xiaozhong Zhou
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Patent number: 11440930Abstract: The present disclosure relates to the field of pharmacology, and in particular, to a preparation method of high-purity total ginkgo flavonol glycoside. The preparation method of high-purity total ginkgo flavonol glycoside includes: (1) mixing Ginkgo biloba extract powder and a first alkaline solution, subjecting to dissolution and centrifugation to obtain a supernatant; (2) subjecting the supernatant to separation with an acid-polar coupled macroporous resin column and to purification with a polyamide column, to obtain high-purity total ginkgo flavonol glycoside. The purity of the total ginkgo flavonol glycoside prepared by the preparation method of high-purity total ginkgo flavonol glycoside according to the present disclosure is ?90%, and has good clinical application prospects; the preparation process does not require organic reagents such as petroleum ether and ethyl acetate, which is environmentally friendly; the transfer rate of the total flavonol glycoside is high.Type: GrantFiled: April 10, 2018Date of Patent: September 13, 2022Assignee: SPH Xing Ling Sci. & Tech. Pharmaceutical Co., Ltd.Inventors: Shuang Liang, Xiangwei Zheng, Qi Gao, Dandan Wang, Guoqin Zhu
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Systems and methods to improve network performance in wireless networks using user mobility patterns
Patent number: 11297486Abstract: A device may include a processor configured to collect historical location data for a user equipment (UE) device associated with a user and determine a movement pattern for the user based on the collected historical location data. The processor may be further configured to obtain current location data for the UE device over a time period; determine a mobility score for the user for the time period based on the determined movement pattern and the obtained current location data, wherein the mobility score is associated with the user's movements during the time period with respect to the determined movement pattern for the user; and provide the determined mobility score for the user to another device configured to adjust one or more parameters of a radio access network (RAN) associated with the UE device based on the determined mobility score.Type: GrantFiled: August 13, 2020Date of Patent: April 5, 2022Assignee: Verizon Patent and Licensing Inc.Inventors: Lun Yin, Le Su, Dandan Wang, Wenyuan Lu, Krishna Pichumani Iyer, Khurram Abbas, Steven F. Rice -
Publication number: 20220080005Abstract: The present disclosure provides a ginkgo biloba ketone ester capsule. The present disclosure further provides a method for preparing ginkgo biloba ketone ester capsule and use thereof. The present disclosure provides a ginkgo biloba ketone ester capsule and a preparation method thereof. Through optimized preparation operations and conditions, a high-quality ginkgo biloba ketone ester capsule can be obtained. Compared with the ginkgo biloba ketone ester capsule prepared by traditional methods, the ginkgo biloba ketone ester capsule of the present disclosure has stable quality and a low unqualified rate. The consistency of different batches of ginkgo biloba ketone ester capsules is good. In particular, the ginkgo biloba ketone ester capsule can effectively control ginkgolic acids, preventing the use of high-ginkgolic-acid raw materials in the ginkgo biloba ketone ester capsules, so as to effectively improve the safety of ginkgo biloba ketone ester capsules.Type: ApplicationFiled: September 12, 2018Publication date: March 17, 2022Applicant: SPH XING LING SCI. & TECH. PHARMACEUTICAL CO., LTD.Inventors: DANDAN WANG, QI GAO, JUN WANG, BAOZHONG ZHU, CUNFA LI, XUEYI ZHANG, YAFANG WEI
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SYSTEMS AND METHODS TO IMPROVE NETWORK PERFORMANCE IN WIRELESS NETWORKS USING USER MOBILITY PATTERNS
Publication number: 20220053312Abstract: A device may include a processor configured to collect historical location data for a user equipment (UE) device associated with a user and determine a movement pattern for the user based on the collected historical location data. The processor may be further configured to obtain current location data for the UE device over a time period; determine a mobility score for the user for the time period based on the determined movement pattern and the obtained current location data, wherein the mobility score is associated with the user's movements during the time period with respect to the determined movement pattern for the user; and provide the determined mobility score for the user to another device configured to adjust one or more parameters of a radio access network (RAN) associated with the UE device based on the determined mobility score.Type: ApplicationFiled: August 13, 2020Publication date: February 17, 2022Inventors: Lun Yin, Le Su, Dandan Wang, Wenyuan Lu, Krishna Pichumani Iyer, Khurram Abbas, Steven F. Rice -
Publication number: 20220008492Abstract: The present disclosure provides a Ginkgo biloba ketone ester bulk drug. The present disclosure further provides a method for preparing Ginkgo biloba ketone ester bulk drug and use thereof. The present disclosure provides a Ginkgo biloba ketone ester and a preparation method thereof. Through optimized preparation operations and conditions, high-quality Ginkgo biloba ketone ester bulk drug can be obtained. Compared with the Ginkgo biloba ketone ester prepared by traditional methods, the Ginkgo biloba ketone ester of the present disclosure has stable quality, low unqualified rate, and good consistency of different batches of bulk drugs.Type: ApplicationFiled: September 12, 2018Publication date: January 13, 2022Applicant: SPH XING LING SCI. & TECH. PHARMACEUTICAL CO., LTD.Inventors: JUN WANG, QI GAO, QIN SHEN, BAOZHONG ZHU, DANDAN WANG, JINFENG WANG, YAFANG WEI, GUOQIN ZHU
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Publication number: 20210345606Abstract: The present disclosure relates to a weakly alkaline peracetic acid solution. The present disclosure provides a weakly alkaline peracetic acid solution, comprising a liquid A agent and a powder B agent, the powder B agent being in an amount of 17-23 g relative to per liter of the liquid A agent, wherein the liquid A agent comprises the following components in percentage by mass: 10-20% of hydrogen peroxide with a concentration of 30%, 1-15% of a stabilizer, 0.1-5% of a metal ion chelating agent, 1-10% of an antioxidant, 0.5-2% of a surfactant, and 53-87.4% of deionized water; and the powder B agent comprises the following components: 5-20% of a stabilizer, 5-20% of a corrosion inhibitor, 1-30% of a pH regulator, and 20-50% of an oxide.Type: ApplicationFiled: February 11, 2021Publication date: November 11, 2021Inventors: Dandan Wang, Xiangpeng Fu
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Publication number: 20210286708Abstract: The disclosure provides a method and an electronic device for recommending crowdsourced tester and crowdsourced testing. The method comprises: collecting a requirement description of a crowd testing task at a time point in a process of crowd software testing and historical crowd testing reports of each tester to be recommended; obtaining a process context and a resource context of each tester to be recommended; inputting the extracted features into a learning to rank model to obtain an initial ranking list of the recommended testers, and re-ranking the initial ranking list based on diversity contributions of expertise and device to obtain a final ranking list. The disclosure can more accurately recommend testers to take accuracy and diversity of the recommended testers into consideration, so that the testers can be dynamically planned during the crowd testing to improve the bug detection rate, shorten the completion cycle of the crowd testing task.Type: ApplicationFiled: September 4, 2020Publication date: September 16, 2021Applicant: Institute of Software, Chinese Academy of SciencesInventors: Qing Wang, Junjie Wang, Jun Hu, Dandan Wang
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Publication number: 20210188866Abstract: The present disclosure relates to the field of pharmacy, specifically to a method for preparing a high-purity ginkgolide and a use thereof. The method for preparing total ginkgolide includes the following steps: (1) mixing a Ginkgo biloba extract powder with an alkali solution, obtaining a precipitate by dissolving and centrifuging; (2) obtaining a total ginkgolide concentrate through purifying the precipitate by silica gel column and recrystallizing. The preparation method of total ginkgolide provided in the present disclosure can improve the purity of total ginkgolide, and the purity of the prepared total ginkgolide is ?80%, which has good clinical application prospect; and the preparation process does not require complicated multi-step recrystallization step, and the total ginkgolide yield is high.Type: ApplicationFiled: April 10, 2018Publication date: June 24, 2021Applicant: SPH Xing Ling Sci. & Tech. Pharmaceutical Co., Ltd.Inventors: Shuang LIANG, Xiangwei ZHENG, Yue DU, Qi GAO, Dandan WANG, Guoqin ZHU
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Patent number: 11033240Abstract: Methods and apparatuses (10) for detecting body-related temperature changes are provided. The method comprises measuring a skin-surface temperature at a first temperature sensor element (12) at a measuring rate (S21) and measuring an ambient temperature at a second temperature sensor element (13) at the measuring rate (S22). The method also comprises calculating a plurality of first change rates for the skin-surface temperature and a plurality of second change rates for the ambient temperature over a time interval (S23). The method further comprises determining, based on the plurality of first change rates and the plurality of second change rates, whether an ambient temperature change rate is faster than a skin-surface temperature change rate by a threshold (S24). The method additionally comprises selecting whether or not to trigger an alarm based on a result of the determining (S25). With the methods and apparatuses (10), the number of false alarms may be significantly reduced.Type: GrantFiled: March 27, 2015Date of Patent: June 15, 2021Assignee: Nokia Technologies OyInventors: Yue Chen, Yuyang Liang, Peng Lan, Wenya Zhao, Dandan Wang
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Publication number: 20210150041Abstract: According to aspects of the inventive concepts, provided is a method for erasing information based on a dual-security mechanism. A storage medium feature database, an information erasure feature database, and a firmware system feature database are built to match cases for to-be-erased electronic scrap. An erasure solution and a native system data package are generated based on the matching results. The information is erased and an erasure result is evaluated; and the information is recovered on the erased electronic scrap, and a recovery result is evaluated, to implement comprehensive double security evaluation. The information erasure validity of the electronic scrap is checked based on the evaluation results. If an erasure result is invalid, erasure solutions are corrected online based on the evaluation result, until the erasure result is valid and the electronic scrap with a native system recovered is obtained.Type: ApplicationFiled: March 18, 2020Publication date: May 20, 2021Inventors: Jian TANG, Dandan WANG, Xiaozhong ZHOU
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Publication number: 20210054011Abstract: The present disclosure relates to the field of pharmacology, and in particular, to a preparation method of high-purity total ginkgo flavonol glycoside. The preparation method of high-purity total ginkgo flavonol glycoside includes: (1) mixing Ginkgo biloba extract powder and a first alkaline solution, subjecting to dissolution and centrifugation to obtain a supernatant; (2) subjecting the supernatant to separation with an acid-polar coupled macroporous resin column and to purification with a polyamide column, to obtain high-purity total ginkgo flavonol glycoside. The purity of the total ginkgo flavonol glycoside prepared by the preparation method of high-purity total ginkgo flavonol glycoside according to the present disclosure is ?90%, and has good clinical application prospects; the preparation process does not require organic reagents such as petroleum ether and ethyl acetate, which is environmentally friendly; the transfer rate of the total flavonol glycoside is high.Type: ApplicationFiled: April 10, 2018Publication date: February 25, 2021Applicant: SPH Xing Ling Sci. & Tech. Pharmaceutical Co., Ltd.Inventors: Shuang LIANG, Xiangwei ZHENG, Qi GAO, Dandan WANG, Guoqin ZHU
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Patent number: 10657143Abstract: Attribute information of a pending data handling process to be performed is identified. Historical data handling processes for a same application scenario as the pending data handling process are identified based on the attribute information. A time that each identified historical data handling process is performed and methods used to perform the identified historical data handling processes are also identified. A weighting coefficient for each identified historical data handling process is determined. Weighted identified historical data handling processes are calculated by applying the weight coefficient to each identified historical data handling process. A recommended weight for each method used to perform the identified historical data handling processes is determined by combining weighted identified historical data handling processes that use the same method. A method that has the highest recommended weight to perform the pending data handling process is recommended.Type: GrantFiled: September 27, 2017Date of Patent: May 19, 2020Assignee: Alibaba Group Holding LimitedInventors: Dandan Wang, Xiaofeng Pan, Di Xu
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Patent number: 10588955Abstract: Provided are a fusion protein of a pneumococcal surface adhesin A (PsaA) and a pneumococcal surface protein A (PspA), and preparation method and use thereof. Also provide are a nucleic acid for encoding the protein, carrier and cell for expressing the protein, and vaccine composition comprising the protein.Type: GrantFiled: March 29, 2016Date of Patent: March 17, 2020Assignees: Changchun BCHT Biotechnology Co., Jilin UniversityInventors: Wei Kong, Yongge Wu, Jingcai Lu, Tianxu Sun, Man Xu, Dandan Wang, Hongjia Hou, Yunliang Dong
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Patent number: 10582332Abstract: The present disclosure generally discloses an autonomous localization capability configured to determine the localization of a mobile device of a wireless communication network based on a sequence of observations reported by the mobile device and a model that represents the motion and observations of mobile devices of the wireless communication network. The model that represents the motion and observations of the mobile devices may be a Hidden Markov Model (HMM) constructed based on use of localization information to define the hidden states of the and use of signal strength measurement reporting information to define possible observations. The localization problem for determining a localization of a given mobile device then becomes a maximum a posterior problem represented by the HMM, which may be solved using a particle filter based localization algorithm using localization probability distribution information which may be determined based on signal strength measurement reporting information.Type: GrantFiled: December 11, 2017Date of Patent: March 3, 2020Assignee: Nokia of America CorporationInventors: Pantelis Monogioudis, Tahsina Farah Sanam, Dandan Wang
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Patent number: 10565216Abstract: Attribute information of a pending data handling process to be performed is identified. Historical data handling processes for a same application scenario as the pending data handling process are identified based on the attribute information. A time that each identified historical data handling process is performed and methods used to perform the identified historical data handling processes are also identified. A weighting coefficient for each identified historical data handling process is determined. Weighted identified historical data handling processes are calculated by applying the weight coefficient to each identified historical data handling process. A recommended weight for each method used to perform the identified historical data handling processes is determined by combining weighted identified historical data handling processes that use the same method. A method that has the highest recommended weight to perform the pending data handling process is recommended.Type: GrantFiled: September 27, 2017Date of Patent: February 18, 2020Assignee: Alibaba Group Holding LimitedInventors: Dandan Wang, Xiaofeng Pan, Di Xu