Patents by Inventor Xiangdong Zhou
Xiangdong Zhou 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).
-
Publication number: 20240125234Abstract: The present invention relates to the technical field of mine fire prevention and extinguishing, in particular to a liquid nitrogen direct injection and low-temperature foaming intelligent filling system based on mine fire area characteristics and an application method, comprising a liquid nitrogen storage tank, a liquid nitrogen direct injection system and a low-temperature foaming system, wherein the liquid nitrogen storage tank communicates with a liquid nitrogen pressurizing device through a main pipeline; a temperature control unit is arranged on the main pipeline; and the liquid nitrogen pressurizing device is connected with the liquid nitrogen direct injection system and the low-temperature foaming system, respectively, liquid nitrogen is directly injected into a foam liquid, to prepare a low-temperature foam type fire preventing and extinguishing material by means of forced convection, membrane boiling, explosion boiling and nucleate boiling between the liquid nitrogen and water.Type: ApplicationFiled: December 7, 2023Publication date: April 18, 2024Inventors: Xiangming HU, Di XUE, Yong ZHOU, Kuibin WU, Wei WANG, Lin ZHU, Peng LI, Xiangdong YAO, Weidong WANG, Wenqi SHAO, Chuncheng CAI, Fusheng WANG, Liwen GUO
-
Patent number: 11953791Abstract: There are provided a display panel and a manufacturing method thereof. The display panel includes first and second display sub-panels with a gap region arranged therebetween; and a light-shielding layer at least located in the gap region, the first and second display sub-panels each include multiple pixel units arranged in an array, each pixel unit includes: a substrate; a data line on the substrate; a black matrix on a side of the data line away from the substrate, an orthographic projection of the data line on the substrate falls within that of the black matrix on the substrate, in at least one of the first and second display sub-panel, the black matrix of the pixel unit closest to the gap region and the light-shielding layer are arranged with an interval therebetween, the black matrix is located on a side of the light-shielding layer away from the gap region.Type: GrantFiled: March 29, 2023Date of Patent: April 9, 2024Assignees: Chengdu BOE Optoelectronics Technology Co., Ltd., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Peng Zhou, Xiaojing Qi, Bo Wu, Xiangdong Qin
-
Patent number: 11954573Abstract: A method of constructing an adaptive multiply accumulate layer in a convolutional neural network, including determining an activation data map width, an activation data map height, a channel depth, a batch, a kernel width, a kernel height and a filter set number, setting a first dimension of an adaptive multiplier layer based on the activation data map width, setting a second dimension of the adaptive multiplier layer based on the channel depth, setting a third dimension of the adaptive multiplier layer based on the filter set number and constructing the adaptive multiplier layer based on the first dimension, the second dimension and the third dimension.Type: GrantFiled: February 26, 2019Date of Patent: April 9, 2024Assignee: Black Sesame Technologies Inc.Inventors: Xiangdong Jin, Fen Zhou, Chengyu Xiong
-
Patent number: 11846558Abstract: The present disclosure provides an apparatus and method for wavefront reconstruction based on rotationally symmetric extended structured light illumination. The apparatus includes a laser device, a neutral density filter, a microscope objective, a pinhole, a collimating lens, a beam splitter prism, a spatial light modulator, a lens to be measured, and an image acquisition device that are sequentially arranged. The method permits modulation of incident parallel light into phase grating-like structured light by using a spatial light modulator. Based on the characteristic of non-infinitely small pixel unit of the spatial light modulator, changing the modulation pattern of the spatial light modulator may result in different forms of structured light. Not only the object to be measured but also the real structured light wavefront can be recovered by acquiring diffraction spots at the focal plane and simultaneously updating the object plane and the structured light plane using an algorithm.Type: GrantFiled: July 20, 2020Date of Patent: December 19, 2023Assignee: Zhejiang UniversityInventors: Jian Bai, Lei Zhao, Binjie Lu, Xiangdong Zhou, Jing Hou
-
Patent number: 11709111Abstract: The disclosure provides a device for detecting a wavefront error by modal-based optimization phase retrieval using an extended Nijboer-Zernike (ENZ) theory. The detection device includes a point light source (1), a half mirror (2), a lens (3) to be tested, a plane mirror (4) and an image sensor (5). The wavefront error of the component under test is characterized by using a Zernike polynomial, and a Zernike polynomial coefficient is solved based on an ENZ diffraction theory. The present disclosure realizes the one-time full-aperture measurement on the wavefront error of a large-aperture optical component, and can use a partially overexposed image to achieve accurate wavefront error retrieval. Meanwhile, the present disclosure overcomes the contradiction between underexposure and high signal-to-noise ratio (SNR) caused by a limited dynamic range when the image sensor (5) acquires an image. The detection device is simple and does not have high requirements for the experimental environment.Type: GrantFiled: July 17, 2020Date of Patent: July 25, 2023Inventors: Jian Bai, Lei Zhao, Binjie Lu, Xiao Huang, Xiangdong Zhou, Jing Hou
-
Publication number: 20220187160Abstract: The present disclosure provides an apparatus and method for wavefront reconstruction based on rotationally symmetric extended structured light illumination. The apparatus includes a laser device, a neutral density filter, a microscope objective, a pinhole, a collimating lens, a beam splitter prism, a spatial light modulator, a lens to be measured, and an image acquisition device that are sequentially arranged. The method permits modulation of incident parallel light into phase grating-like structured light by using a spatial light modulator. Based on the characteristic of non-infinitely small pixel unit of the spatial light modulator, changing the modulation pattern of the spatial light modulator may result in different forms of structured light.Type: ApplicationFiled: July 20, 2020Publication date: June 16, 2022Applicant: Zhejinag UniversityInventors: Jian Bai, Lei Zhao, Binjie Lu, Xiangdong Zhou, Jing Hou
-
Publication number: 20220003633Abstract: The disclosure provides a device for detecting a wavefront error by modal-based optimization phase retrieval using an extended Nijboer-Zernike (ENZ) theory. The detection device includes a point light source (1), a half mirror (2), a lens (3) to be tested, a plane mirror (4) and an image sensor (5). The wavefront error of the component under test is characterized by using a Zernike polynomial, and a Zernike polynomial coefficient is solved based on an ENZ diffraction theory. The present disclosure realizes the one-time full-aperture measurement on the wavefront error of a large-aperture optical component, and can use a partially overexposed image to achieve accurate wavefront error retrieval. Meanwhile, the present disclosure overcomes the contradiction between underexposure and high signal-to-noise ratio (SNR) caused by a limited dynamic range when the image sensor (5) acquires an image. The detection device is simple and does not have high requirements for the experimental environment.Type: ApplicationFiled: July 17, 2020Publication date: January 6, 2022Inventors: Jian BAI, Lei ZHAO, Binjie LU, Xiao HUANG, Xiangdong ZHOU, Jing HOU
-
Patent number: 8784613Abstract: A method is provided for controlling organic contaminants, such as xylans, pitch or both, that interfere with bleaching of fibers and/or cause other interference(s) in papermaking systems. The method includes contacting fibers before any bleaching thereof with a composition which contains a hemicellulolytic enzyme and an organic contaminant removal adjuvant to liberate the organic contaminants from the fibers. The treated fibers can then be bleached and further used, for example, in making paper. The present invention also relates to the treatment compositions and to paper products made with fiber materials treated with these compositions. A method of enhancing enzymatic degradation of a substrate as well as formulations and systems for achieving the same are also provided. Various substrates can be degraded or otherwise processed, including biomass, paper mill sludge, and animal hides. Enzymatic degradation can be enhanced by including one or more polymeric surfactants.Type: GrantFiled: November 15, 2013Date of Patent: July 22, 2014Assignee: Buckman Laboratories International, Inc.Inventors: Stephen D. Bryant, Kevin J. MacDonald, Bernard Janse, Xiangdong Zhou, Philip Hoekstra, Daniel E. Glover
-
Publication number: 20140069599Abstract: A method is provided for controlling organic contaminants, such as xylans, pitch or both, that interfere with bleaching of fibers and/or cause other interference(s) in papermaking systems. The method includes contacting fibers before any bleaching thereof with a composition which contains a hemicellulolytic enzyme and an organic contaminant removal adjuvant to liberate the organic contaminants from the fibers. The treated fibers can then be bleached and further used, for example, in making paper. The present invention also relates to the treatment compositions and to paper products made with fiber materials treated with these compositions. A method of enhancing enzymatic degradation of a substrate as well as formulations and systems for achieving the same are also provided. Various substrates can be degraded or otherwise processed, including biomass, paper mill sludge, and animal hides. Enzymatic degradation can be enhanced by including one or more polymeric surfactants.Type: ApplicationFiled: November 15, 2013Publication date: March 13, 2014Applicant: Buckman Laboratories International, Inc.Inventors: Stephen D. Bryant, Kevin J. MacDonald, Bernard Janse, Xiangdong Zhou, Philip Hoekstra, Daniel E. Glover
-
Patent number: 8657996Abstract: A method is provided for controlling deposit-forming contaminants that comprise pitch or other fiber components which can interfere with the processing of the fibers, reduce paper quality, or both in papermaking systems. The method includes contacting fibers with a lipase and at least one peroxide source-free oxidant, and optionally nonionic surfactant, to liberate the organic contaminants from the fibers. Paper products of the method are also provided.Type: GrantFiled: April 19, 2013Date of Patent: February 25, 2014Assignee: Buckman Laboratories International, Inc.Inventors: Xiangdong Zhou, Percy Jaquess
-
Patent number: 8652301Abstract: A method is provided for controlling organic contaminants, such as xylans, pitch or both, that interfere with bleaching of fibers and/or cause other interference(s) in papermaking systems. The method includes contacting fibers before any bleaching thereof with a composition which contains a hemicellulolytic enzyme and an organic contaminant removal adjuvant to liberate the organic contaminants from the fibers. The treated fibers can then be bleached and further used, for example, in making paper. The present invention also relates to the treatment compositions and to paper products made with fiber materials treated with these compositions. A method of enhancing enzymatic degradation of a substrate as well as formulations and systems for achieving the same are also provided. Various substrates can be degraded or otherwise processed, including biomass, paper mill sludge, and animal hides. Enzymatic degradation can be enhanced by including one or more polymeric surfactants.Type: GrantFiled: October 26, 2012Date of Patent: February 18, 2014Assignee: Buckman Laboratories International, Inc.Inventors: Stephen D. Bryant, Kevin J. MacDonald, Bernard Janse, Xiangdong Zhou, Philip Hoekstra, Daniel E. Glover
-
Publication number: 20130340959Abstract: A method is provided for controlling deposit-forming contaminants that comprise pitch or other fiber components which can interfere with the processing of the fibers, reduce paper quality, or both in papermaking systems. The method includes contacting fibers with a lipase and at least one peroxide source-free oxidant, and optionally nonionic surfactant, to liberate the organic contaminants from the fibers. Paper products of the method are also provided.Type: ApplicationFiled: April 19, 2013Publication date: December 26, 2013Applicant: Buckman Laboratories International, Inc.Inventors: Xiangdong Zhou, Percy Jaquess
-
Patent number: 8460900Abstract: A method to degrade or digest sludge, such as from pulp and/or paper manufacturing, is described. Compositions to use in the method are further described.Type: GrantFiled: June 3, 2011Date of Patent: June 11, 2013Assignee: Buckman Laboratories International, Inc.Inventor: Xiangdong Zhou
-
Publication number: 20110300587Abstract: A method to degrade or digest sludge, such as from pulp and/or paper manufacturing, is described. Compositions to use in the method are further described.Type: ApplicationFiled: June 3, 2011Publication date: December 8, 2011Applicant: BUCKMAN LABORATORIES INTERNATIONAL, INC.Inventor: Xiangdong ZHOU
-
Publication number: 20080230094Abstract: The invention is a method to inhibit the growth of at least one microorganism in an aqueous system capable of supporting such growth. This includes controlling, and preferably preventing, slime formation in the aqueous system. The method mixes a persulfate salt, a bromide salt, and water under conditions sufficient to form an active bromine-containing, [Br+], solution and then adds an effective amount of the active bromine-containing solution to an aqueous system to inhibit the growth of at least one microorganism in the aqueous system. Also, the invention is a method to inhibit the growth of at least one microorganism on a substrate capable of supporting such growth. The method contacts the substrate with an effective amount of active bromine-containing solution to inhibit the growth of at least one microorganism on the substrate. Combining an amine source with the persulfate salt and bromide salts generates an active bromine-containing solution which also contains bromamines.Type: ApplicationFiled: March 23, 2007Publication date: September 25, 2008Applicant: Buckman Laboratories International, Inc.Inventors: Xiangdong Zhou, Thomas E. McNeel
-
Publication number: 20060289354Abstract: A method and composition for killing, preventing, or inhibiting the growth of microorganisms in an aqueous system or on a substrate capable of supporting a growth of microorganisms are provided by providing a lactoperoxidase, hydrogen peroxide or a peroxide source, a halide, other than a chloride, or a thiocyanate, and, optionally, an ammonium source, under conditions in which the lactoperoxidase, peroxide from the hydrogen peroxide or peroxide source, halide or thiocyanate and ammonium from the ammonium source interact to provide an antimicrobial agent to the aqueous system or substrate.Type: ApplicationFiled: June 15, 2005Publication date: December 28, 2006Inventors: Xiangdong Zhou, Stephen Bryant, Thomas McNeel
-
Publication number: 20040084383Abstract: The invention is a method to inhibit the growth of at least one microorganism in an aqueous system capable of supporting such growth. This includes controlling, and preferably preventing, slime formation in the aqueous system. The method mixes a persulfate salt, a bromide salt, and water under conditions sufficient to form an active bromine-containing, [Br+], solution and then adds an effective amount of the active bromine-containing solution to an aqueous system to inhibit the growth of at least one microorganism in the aqueous system. Also, the invention is a method to inhibit the growth of at least one microorganism on a substrate capable of supporting such growth. The method contacts the substrate with an effective amount of active bromine-containing solution to inhibit the growth of at least one microorganism on the substrate. Combining an amine source with the persulfate salt and bromide salts generates an active bromine-containing solution which also contains bromamines.Type: ApplicationFiled: October 30, 2002Publication date: May 6, 2004Applicant: BUCKMAN LABORATORIES INTERNATIONAL, INC.Inventors: Xiangdong Zhou, Thomas E. McNeel
-
Publication number: 20040078134Abstract: The present invention relates to an electric control fuel injection system for motorcycle, especially for middle and small volume motorcycle. The invention includes CMOS chips, sensors, etc. The different air/fuel ratio corresponding to operating conditions can be obtained with the help of programs and parameters stored in the system and instantaneous parameters measured by sensors. The simple structure, less pollution and economy system can accurately control air/fuel ratio and ignition advance angle.Type: ApplicationFiled: August 28, 2003Publication date: April 22, 2004Inventors: Mingshan Yin, Xiangdong Zhou
-
Publication number: 20010031775Abstract: A method for increasing the effectiveness of a biocide is described. In the method, at least one biocide and at least one diethanolamide are applied to a substrate or aqueous system subject to the growth of microorganisms. The diethanolamide is applied in an amount effective to increase the biocidal activity of the biocide. Biocidal compositions are described where the biocide and the diethanolamide are present in a combined amount effective to control the growth of at least one microorganism. Methods for controlling the growth of microorganisms on various substrates and in various aqueous systems are also described. The combination of the biocide and the diethanolamide is particularly useful as a biocide in the leather industry, the lumber industry, the papermaking industry, the textile industry, the agricultural industry, and the coating industry, as well as in industrial process waters.Type: ApplicationFiled: May 22, 2001Publication date: October 18, 2001Applicant: Buckman Laboratories International, Inc.Inventors: Vanja M. King, Marilyn S. Whittemore, Xiangdong Zhou
-
Patent number: 6235299Abstract: A method for increasing the effectiveness of a biocide is described. In the method, at least one biocide and at least one diethanolamide are applied to a substrate or aqueous system subject to the growth of microorganisms. The diethanolamide is applied in an amount effective to increase the biocidal activity of the biocide. Biocidal compositions are described where the biocide and the diethanolamide are present in a combined amount effective to control the growth of at least one microorganism. Methods for controlling the growth of microorganisms on various substrates and in various aqueous systems are also described. The combination of the biocide and the diethanolamide is particularly useful as a biocide in the leather industry, the lumber industry, the papermaking industry, the textile industry, the agricultural industry, and the coating industry, as well as in industrial process waters.Type: GrantFiled: February 27, 1998Date of Patent: May 22, 2001Assignee: Buckman Laboratories International IncInventors: Vanja M. King, Marilyn S. Whittemore, Xiangdong Zhou