Patents by Inventor Yijian Shi
Yijian Shi 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: 20230401359Abstract: A method for optimizing a weight of a disc spring includes: determining an objective function for weight optimization of the disc spring and key parameters to be solved; optimizing an original Harris Hawks optimization structure, specifically including: first, eliminating steps of centralized calculation of objective function values of the original Harris Hawks optimization except a step of population initialization, and recording a result when a better solution is obtained; second, introducing a random unit permutation mechanism before an end of each iterative optimization of the original Harris Hawks optimization; third, deleting a step of searching for an energy factor E with an absolute value greater than or equal to 1; and solving the key parameters by means of the optimized Harris Hawks optimization referred to as the random unit permutation-based Harris Hawks optimization to obtain the key parameters for weight optimization of the disc spring.Type: ApplicationFiled: June 8, 2023Publication date: December 14, 2023Applicant: Wenzhou UniversityInventors: Pengjun WANG, Shiming Song, Yijian SHI
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Publication number: 20230253919Abstract: A method for identifying parameters of single-diode photovoltaic cells comprises: measuring an actual output voltage and an actual output current of a single-diode photovoltaic cell under a given temperature and a given light intensity; constructing an ideal model of the single-diode photovoltaic cell, determining to-be-identified parameters, and establishing an objective function; and identifying the to-be-identified parameters through a backtracking search algorithm based on a sine-cosine mechanism to obtain to-be-identified parameter data of the single-diode photovoltaic cell, so that parameters identification of the single-diode photovoltaic cell is completed.Type: ApplicationFiled: January 29, 2021Publication date: August 10, 2023Applicant: Wenzhou UniversityInventors: Pengjun WANG, Wei ZHOU, Huiling CHEN, Bo CHEN, Yijian SHI
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Publication number: 20230224171Abstract: Disclosed is a software PUF based on an RISC-V processor for IoT security. A 32-bit RISC-V processor is used to generate abnormal information results in an abnormal operating state under a low voltage, and the abnormal information results are used to represent the features of the 32-bit RISC-V processor; 5-bit binary data obtained by comparing the abnormal information results with normal information results has high randomness and uniqueness and it is extremely difficult to directly extract internal abnormal information result from a hardware circuit of the 32-bit RISC-V processor, so modeling attacks based on the 5-bit binary data calculated according to the abnormal information results of the 32-bit RISC-V processor are almost impossible; in addition, when the 32-bit RISC-V processor is in an abnormal operating state, the operating frequency of the 32-bit RISC-V processor is dynamically adjusted through a frequency compensation method.Type: ApplicationFiled: August 31, 2022Publication date: July 13, 2023Applicant: Wenzhou UniversityInventors: Pengjun WANG, Li Ni, Yue Jun ZHANG, Di Zhou, Yijian SHI
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Publication number: 20230091469Abstract: Disclosed is an ML attack resisting method for a strong PUF. Response signals generated by applying multiple sets of different challenge signals to a strong PUF are used as information to be encrypted, and are put in order to form a plaintext matrix. Then a matrix multiplication operation is performed on two plaintext matrixes to generate a ciphertext matrix. Next, elements in a transform matrix obtained by performing binary transformation on the ciphertext matrix are used as final responses, which are in one-to-one correspondence with original challenge signals and are used as final CRPs of the matrix-encrypted strong PUF.Type: ApplicationFiled: August 23, 2022Publication date: March 23, 2023Applicant: Wenzhou UniversityInventors: Pengjun WANG, Ziyu Zhou, Gang LI, Xuejiao Ma, Huihong Zhang, Yijian SHI
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Publication number: 20230029947Abstract: The disclosure is a medical disease feature selection method based on an improved salp swarm algorithm. The improved salp swarm algorithm is used to optimize a feature selection problem, the accuracy of the mentioned method is estimated by means of a transfer function and classification by a K-nearest neighbor algorithm, and the salp swarm algorithm is improved by using a self-adapted control parameter and an elite grey wolf ruling policy, so that it helps the algorithm avoid premature convergence in the optimization process and jump out of local optimum, thereby achieving a target of the algorithm with the smallest selected feature quantity and the highest classification precision. The method has the advantages of high rate of convergence, higher classification precision and better robustness.Type: ApplicationFiled: July 7, 2022Publication date: February 2, 2023Applicant: Wenzhou UniversityInventors: Pengjun Wang, Songwei Zhao, Huiling Chen, Suling Xu, Wenming He, Yijian Shi
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Publication number: 20200375881Abstract: The subject invention provides a skin care product made from camellia sinensis, which is nontoxic and non-irritating to skin. More specifically, the present invention involves a skin care product containing an alcohol, acetic acid, and extracts of camellia sinensis. This product is effective in treating a number of skin conditions, including but not limited to seborrheic dermatitis, hair loss, athlete's foot, ichthyosis, jock itch, sweat spots, fungal nails, and burns. When applied to burns, it relieves pain and helps to subside blisters; when applied to sunburns, it eases skin itchiness and prevents peeling skin; when applied to the scalp, it helps to stop hair loss and regrows hair. Long-term use of this product will keep skin healthy and will not lead to any drug resistance or harmful side effects.Type: ApplicationFiled: May 19, 2020Publication date: December 3, 2020Inventor: Yijian Shi
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Patent number: 10458073Abstract: Systems and methods for arresting aircraft. In specific embodiments, the systems and methods can be useful in arresting light aircraft because they typically do not have the weight to penetrate available EMAS systems. The system is generally provided as a structure having a suspended layer of energy absorbing material. A lower portion of the system can have a lower strength, used as a method to suspend an upper, stronger/more highly energy absorbent portion of the system.Type: GrantFiled: May 18, 2016Date of Patent: October 29, 2019Assignee: Engineered Arresting Systems CorporationInventors: Shawn P. Doherty, Nicholas M. Flynn, Yijian Shi, Sarah Ma, Hong Zou
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Patent number: 10186564Abstract: The subject invention provides a capacitor-drive electroluminescent display, which includes a display substrate, row and column electrodes that are deposited on the substrate, and the light-emitting pixel that is electrically connected to (and in between) the row and column electrodes, wherein the light-emitting pixel includes a light-emitting device, a drive capacitor, and a charging switch; wherein, the light-emitting device and the drive capacitor is electrically connected in parallel, which is then electrically connected to the charging switch; wherein, the row or column electrode has a light-emitting windows for installation of the electroluminescent devices. Meanwhile, the subject invention also provides a method for producing the capacitor-drive electroluminescent display.Type: GrantFiled: August 3, 2015Date of Patent: January 22, 2019Inventors: Yijian Shi, Jiakun Jade Shi
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Publication number: 20170229531Abstract: The subject invention provides a capacitor-drive electroluminescent display, which includes a display substrate, row and column electrodes that are deposited on the substrate, and the light-emitting pixel that is electrically connected to (and in between) the row and column electrodes, wherein the light-emitting pixel includes a light-emitting device, a drive capacitor, and a charging switch; wherein, the light-emitting device and the drive capacitor is electrically connected in parallel, which is then electrically connected to the charging switch; wherein, the row or column electrode has a light-emitting windows for installation of the electroluminescent devices. Meanwhile, the subject invention also provides a method for producing the capacitor-drive electroluminescent display.Type: ApplicationFiled: August 3, 2015Publication date: August 10, 2017Inventors: YIJIAN SHI, JIAKUN JADE SHI
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Patent number: 9573700Abstract: Embodiments of the present invention provide a core of individual components having properties such that a system assembled from the components absorbs the kinetic energy of a moving vehicle. The components may be interlocking components. The components may be manufactured of ceramic or polymeric composite or other materials that are strong enough to absorb the vehicle's energy and help stop the vehicle safely by the system's ability to crush or deform upon impact, and not so strong that it causes the vehicle to crumple against the barrier. In one particular embodiment, the components may be modified packing elements that are traditionally used in gas to liquid columns.Type: GrantFiled: July 31, 2014Date of Patent: February 21, 2017Assignee: Engineered Arresting Systems CorporationInventors: Michael T. Galbus, Silvia C. Valentini, Hong Zou, Youhong Li, G. Kent Thompson, Richard L. Orner, Jr., Yijian Shi
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Publication number: 20150247298Abstract: Embodiments of the present disclosure relate generally to macro-patterned materials and methods of their use in connection with vehicle arresting systems. Certain embodiments provide 3-D folded materials, honeycombs, lattice structures, and other periodic cellular material structures, that can be used for arresting vehicles. The materials can be engineered to have properties that allow them to reliably crush in a predictable manner under pressure from a vehicle. The materials can be formed into various shapes and combined in various ways in order to provide the desired properties.Type: ApplicationFiled: March 3, 2015Publication date: September 3, 2015Inventors: Youhong Li, Marcos Villa-Gonzalez, Silvia C. Valentini, Yijian Shi, Hong Zou, Michael Galbus
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Publication number: 20150034439Abstract: Embodiments of the present invention provide a core of individual components having properties such that a system assembled from the components absorbs the kinetic energy of a moving vehicle. The components may be interlocking components. The components may be manufactured of ceramic or polymeric composite or other materials that are strong enough to absorb the vehicle's energy and help stop the vehicle safely by the system's ability to crush or deform upon impact, and not so strong that it causes the vehicle to crumple against the barrier. In one particular embodiment, the components may be modified packing elements that are traditionally used in gas to liquid columns.Type: ApplicationFiled: July 31, 2014Publication date: February 5, 2015Inventors: Michael T. Galbus, Silvia C. Valentini, Hong Zou, Youhong Li, G. Kent Thompson, Richard L. Orner, JR., Yijian Shi
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Patent number: 8835962Abstract: Herein is provided electroluminescent devices, and methods for their use and production. In some embodiments, the devices contain embedded optical features that act as lenses to direct photons emitted from an electroluminescent material. The lensing effect from the optical features allows increased light extraction from the devices compared with devices lacking such features. In some embodiments the devices are prepared using a plurality of etching and deposition steps.Type: GrantFiled: May 9, 2011Date of Patent: September 16, 2014Assignee: SRI InternationalInventors: Yijian Shi, Qianfei Xu
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Publication number: 20140167020Abstract: A passive matrix OLED display comprises an array of individually addressable OLED pixels arranged in column and row lines in an imaging area of the display, wherein at least one OLED pixel comprises at least one rectifying component connected in series with an electroluminescent diode, and wherein the at least one OLED pixel has an extended pixel on-time compared with a similar pixel lacking the at least one rectifying component.Type: ApplicationFiled: January 25, 2014Publication date: June 19, 2014Applicant: SRI INTERNATIONALInventors: Yijian Shi, Qianfei Xu, William Siu-Keung Chu
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Patent number: 8697254Abstract: Aspects of the invention include electroluminescent devices and methods for making the same. In certain embodiments, the devices include a substrate, a hole-injection electrode layer, a dielectric layer, an electroluminescent layer, an electron-injection electrode layer, and a cavity. In certain embodiments, an electrode layer (e.g., the electron-injection or hole-injection electrode layer) is positioned above the cavity and is configured for directing light through the substrate. In certain embodiments, an electrode layer (e.g., the electron-injection or hole-injection electrode layer) is positioned above and spans across the cavity. The use of the produced device(s) in electroluminescent displays is also provided herein.Type: GrantFiled: September 11, 2007Date of Patent: April 15, 2014Assignee: SRI InternationalInventor: Yijian Shi
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Patent number: 8574937Abstract: Aspects of the disclosure include electroluminescent devices and methods for making the same. The devices include a substrate, a hole-injection electrode layer, an electroluminescent layer, and an electron-injection electrode layer, such as a layer that includes an air-stable, low work function material, which layer is capable of achieving efficient electron injection with reduced current leakage. In certain embodiments, the devices may contain an efficient electron injection layer that includes a composition comprising a polymer, e.g., a polymer that contains polar components (such as a polar functional group), and a metal diketonate. In certain embodiments, the devices may contain an electron injection layer that includes polyethylene glycol dimethyl ether and barium or calcium acetylacetonate.Type: GrantFiled: January 24, 2008Date of Patent: November 5, 2013Assignee: Sri InternationalInventor: Yijian Shi
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Publication number: 20130214254Abstract: Herein is provided electroluminescent devices, and methods for their use and production. In some embodiments, the devices contain embedded optical features that act as lenses to direct photons emitted from an electroluminescent material. The lensing effect from the optical features allows increased light extraction from the devices compared with devices lacking such features. In some embodiments the devices are prepared using a plurality of etching and deposition steps.Type: ApplicationFiled: May 9, 2011Publication date: August 22, 2013Inventors: Yijian Shi, Qianfei Xu
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Patent number: 8479592Abstract: Embodiments of the present invention provide field test devices and methods for testing the compressive gradient strength of installed vehicle arresting systems, such as those installed on airport runways. Current methods of testing such arresting systems are conducted on sample materials in-house, and these methods are not applicable or useful when tests need to be conducted on currently-installed systems in the field.Type: GrantFiled: September 24, 2009Date of Patent: July 9, 2013Assignee: Engineered Arresting Systems CorporationInventors: Hong Zou, Andrea L. Manning, Graham Kent Thompson, Yijian Shi
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Patent number: 8476119Abstract: The disclosure provides methods and materials suitable for use as encapsulation barriers and dielectric layers in electronic devices. In one embodiment, for example, there is provided an electroluminescent device or other electronic device with a dielectric layer comprising alternating layers of a silicon-containing bonding material and a ceramic material. The methods provide, for example, electronic devices with increased stability and shelf-life. The invention is useful, for example, in the field of microelectronic devices.Type: GrantFiled: March 4, 2009Date of Patent: July 2, 2013Assignee: SRI InternationalInventors: Yigal D. Blum, William Siu-Keung Chu, David Brent MacQueen, Yijian Shi
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Patent number: 8466011Abstract: The disclosure provides methods and materials suitable for use as encapsulation barriers in electronic devices. In one embodiment, for example, there is provided an electroluminescent device or other electronic device encapsulated by alternating layers of a silicon-containing bonding material and a ceramic material. The encapsulation methods provide, for example, electronic devices with increased stability and shelf-life. The invention is useful, for example, in the field of microelectronic devices.Type: GrantFiled: March 4, 2009Date of Patent: June 18, 2013Assignee: SRI InternationalInventors: Yigal D. Blum, William Siu-Keung Chu, David Brent MacQueen, Yijian Shi