Patents Assigned to QILU UNIVERSITY OF TECHNOLOGY
  • Patent number: 11566376
    Abstract: A method for preparing unbleached biomechanical pulp from straw. Straw is used as a raw material, which is firstly pre-treated with hot water and hot steam, added with a small amount of alkali, and then softened by saturation with hot water, enzymatically treated by adding alkaline biological enzymes, refined, and washed. This method has the advantage that the whole production process does not need alkali recovery, thereby avoiding environmental pollution from the source. This technology conforms to the national industrial policy of resource conservation, economic recycling, energy saving and emission reduction. The present invention overcomes the problems of difficulty in recovering the alkali wastewater accompanying straw pulp and serious pollution in the prior art. This is of great significance for the industrial production of straw pulp and the development of the paper industry.
    Type: Grant
    Filed: April 29, 2019
    Date of Patent: January 31, 2023
    Assignee: QILU UNIVERSITY OF TECHNOLOGY
    Inventors: Xingxiang Ji, Ruiming Wang, Zhongjian Tian, Jiachuan Chen, Guihua Yang, Yuqian Guo
  • Publication number: 20220381026
    Abstract: The present invention provides an energy-storing temperature control material, and belongs to the technical field of temperature control materials. In the energy-storing temperature control material provided in the present invention, the organic synthetic fiber based phase-change material has a three-dimensional dispersion effect, and can form a network constraint for remaining phase-change materials to reinforce mechanical properties of the materials, thereby fixing shapes of the materials and avoiding a liquid-crystal phase separation phenomenon in the phase-change process. The phase-change energy storage agent can absorb and release the heat by means of solid-liquid phase conversion of the material, to achieve the temperature control effect; and the phase-change temperature regulator can regulate a phase-change temperature range of the phase-change material, to make the energy-storing temperature control material suitable for climatic features of northern China.
    Type: Application
    Filed: August 9, 2022
    Publication date: December 1, 2022
    Applicant: Qilu University of Technology
    Inventors: Letian QI, Shoujuan WANG, Xia MENG, Fangong KONG, Ruhe ZHAO, Chen HAN, Debao LI
  • Publication number: 20220328837
    Abstract: An interlayer material for a lithium-sulfur battery, and a lithium-sulfur battery, the interlayer material including electrically conductive MOF modified carbon fiber paper material between the separator and cathode accelerating electron transfer and having catalytic and barrier effect on lithium polysulfides. The paper material is prepared by: pretreatment of the paper by subjecting the carbon fiber paper to hydrophilic treatment; preparation of carbon fiber paper grown with Co3(HITP)2 including: complexing Co2+ and hexaiminotriphenylene on the paper surface, and allowing the product to grow in situ; and removal of structural impurities.
    Type: Application
    Filed: May 7, 2021
    Publication date: October 13, 2022
    Applicant: QILU UNIVERSITY OF TECHNOLOGY
    Inventors: Guowei ZHOU, Shaonan GU, Yinan WANG, Yanyan HE, Xiaoyi SONG, Bingjie LIU, Yongqiang REN
  • Publication number: 20220315492
    Abstract: The present invention relates to a bismuth tungstate/bismuth sulfide/molybdenum disulfide heterojunction ternary composite material and a preparation method and application thereof. The composite material is composed of bismuth tungstate, bismuth sulfide and molybdenum disulfide in an ordered layered way, Bi2WO6 is an orthorhombic system, Bi2S3 is a p-type semiconductor located on a (130) crystal face, MoS2 is a layered transition metal sulfide located on a (002) crystal face, the whole composite material is of a spherical structure with an unsmooth surface, and a layer of nanosheets uniformly grow on an outer layer. The average particle size of composite materials is in the range of 2.4-2.6 ?m. The spherical Bi2WO6/Bi2S3/MoS2 heterojunction ternary composite material prepared in the present invention has good adsorption of Cr(VI) and high catalytic reduction ability under visible light.
    Type: Application
    Filed: August 17, 2020
    Publication date: October 6, 2022
    Applicant: QILU UNIVERSITY OF TECHNOLOGY
    Inventors: Guowei ZHOU, Jing REN, Qinghua GONG, Bin SUN, Tingting GAO, Xuefeng SUN
  • Publication number: 20220250916
    Abstract: A material with pine-branch like samarium oxide/graphene/sulfur gel structure, and a preparation method and use thereof. The material is reduced graphene oxide carrying pine-branch like samarium oxide on the surface to form a cross-linked gel structure, and sulfur is loaded on the gel structure. The preparation method includes: subjecting graphene oxide and a samarium salt to hydrothermal reduction to prepare a reduced graphene oxide/samarium precursor; under an inert atmosphere, thermolysing the reduced graphene oxide/samarium precursor to obtain a reduced graphene oxide/pine-branch like samarium oxide gel; and melting and diffusing the sulfur onto the reduced graphene oxide/pine-branch like samarium oxide gel. The material with pine-branch like samarium oxide/graphene/sulfur gel structure greatly improves the electrochemical performance of lithium-sulfur batteries.
    Type: Application
    Filed: August 17, 2020
    Publication date: August 11, 2022
    Applicant: QILU UNIVERSITY OF TECHNOLOGY
    Inventors: Guowei ZHOU, Shaonan GU, Bingjie LIU, Yinan WANG, Xiaoyi SONG, Tingting HU, Pei CAO
  • Patent number: 11381378
    Abstract: According to the chaotic communication method and system based on complex modified projective difference function synchronization provided in the present invention, when a chaotic signal has a relatively small amplitude, the amplitude of the chaotic signal can be adjusted by adjusting a proportional matrix, so as to mask plaintext better. Moreover, a robust controller is designed according to a filtered signal and a second coupling function, to ensure complex modified projective difference function synchronization, and such synchronization allows the bit error rate to be zero theoretically.
    Type: Grant
    Filed: September 30, 2020
    Date of Patent: July 5, 2022
    Assignees: Qilu University of Technology, Shandong Institute of Artificial Intelligence
    Inventors: Fangfang Zhang, Minglei Shu, Kai Sun, Mingming Huang, Xue Zhang
  • Publication number: 20220204965
    Abstract: The present disclosure relates to a method for constructing a trehalose polyenzyme complex in vitro by mediation of an artificial scaffold protein, which mainly comprises the following steps: constructing a recombinant bacterium WB800n-ScafCCR for self-assembled scaffold protein module; constructing a recombinant bacterium WB800n-P43-phoD-treY-Ccdoc for self-assembled catalytic module; constructing a recombinant bacterium WB800n-P43-phoD-treZ-Ctdoc for self-assembled catalytic module; constructing a recombinant bacterium WB800n-P43-phoD-cgt-Rfdoc for self-assembled catalytic module; secretorily expressing the recombinant bacteria and self-assembling in vitro to obtain a recombinant trehalose multi-enzyme complex. The trehalose multi-enzyme complex constructed by the method of the present disclosure has a higher catalytic efficiency in preparing trehalose than that of mixed free enzymes, and the method can be used for production of high quality trehalose after immobilization with cellulose microspheres.
    Type: Application
    Filed: November 12, 2021
    Publication date: June 30, 2022
    Applicant: Qilu University of Technology
    Inventors: Hongling Liu, Tengfei Wang, Ruiming Wang, Xinyi Zhang
  • Patent number: 11369943
    Abstract: The present invention relates to a method for preparing a simply prepared, safe, nontoxic, and biodegradable modified starch; the present invention further relates to use thereof as an adsorbent in adsorbing heavy metal ions and organic compounds, and belongs to the technical field of modified starch material. Starch is used as raw material and modified with thiourea and tungsten chloride; the starch binds to heavy metal ions through a series of coordination or chelation, and thus produces a heavy metal ion adsorption effect; a starch-based carbon composite is prepared, i.e., a modified starch composite. The simply prepared, environmentally friendly, and recyclable modified starch adsorbent with excellent performance and higher practical value effectively removes He ions and such organic compounds as methylene blue from the wastewater; the modified starch adsorbent is expected to develop into a novel water treatment agent due to low loss rate, biodegradability, and recyclability.
    Type: Grant
    Filed: August 19, 2020
    Date of Patent: June 28, 2022
    Assignee: QILU UNIVERSITY OF TECHNOLOGY
    Inventors: Yishan Fang, Bo Cui, Jiaxuan Ma, Zhiying Li, Chunjing Tao, Haiteng Tao
  • Patent number: 11359177
    Abstract: The present invention further discloses an application of Saccharomyces cerevisiae in the fermentation of a second generation fuel, ethanol, with a straw lignocellulose biomass hydrolysate as a raw material. Experiments prove that the strain of the prevent invention has an efficient co-fermentation capacity of C6/C5 while tolerating multiple inhibitors, and can consume all the glucose and xylose to produce ethanol; and the sugar-alcohol conversion rate is up to 0.43 g g?1. The strain and screening strategy used in the present invention provide technical reference and basis for the further breeding of a Saccharomyces cerevisiae strain which has a superior fermenting property and is produced by the second generation fuel, ethanol.
    Type: Grant
    Filed: August 13, 2021
    Date of Patent: June 14, 2022
    Assignee: QILU UNIVERSITY OF TECHNOLOGY
    Inventors: Xiaoming Bao, Jianzhi Zhao, Fangqing Wei, Hongxing Li, Zailu Li
  • Patent number: 11351585
    Abstract: A method for preparing a high-strength extruded profile of an Mg—Zn—Sn—Mn alloy is composed of a solid solution treatment at two stages to a billet, a high-temperature pre-aging to the billet, a low-temperature rapid extrusion and a low-temperature aging treatment to a profile. The Mg—Zn—Sn—Mn alloy includes the following elements in mass percent: 5.8-6.2% of Zn, 3.0-3.5% of Sn, 0.25-0.45% of Mn, unavoidable impurities of 0.05% or less, and the balance magnesium. The Mg—Zn—Sn—Mn magnesium alloy profile has a fine grain size of about 10-20 ?m and a dispersed second phase, so a high strength and a good elongation can be obtained therein, and a tensile strength of 350 MPa or more, a yield strength of 280 MPa or more, and the elongation of 12% or more. In addition, the profile has a high extrusion production efficiency and a high yield, and a low extrusion cost.
    Type: Grant
    Filed: February 24, 2020
    Date of Patent: June 7, 2022
    Assignees: QILU UNIVERSITY OF TECHNOLOGY, ADVANCED MATERIALS INSTITUTE, SHANDONG ACADEMY OF SCIENCES
    Inventors: Jixue Zhou, Yunteng Liu, Dongqing Zhao, Baichang Ma, Meifang Wang, Peiliang Li, Cong Liu, Shouqiu Tang
  • Patent number: 11340065
    Abstract: An optical fiber inclination measurement apparatus and a differential inclination measurement system are provided, which is related to the field of monitoring technology. The apparatus includes a supporting mechanism with a base and a base frame, a swinging mechanism with a pendulum, a cycloid, and a first reflective film is disposed on the pendulum. The measurement mechanism includes a first optical fiber, and an end surface of the first optical fiber is disposed opposite to the first reflective film. During an earthquake generating process, a landform changes and the pendulum swings, resulting in changes in displacement. The end surface of the first optical fiber together with the first reflective film form a Fabry-Perot cavity. The cavity length of the Fabry-Perot cavity changes before and after the landform deforms, and an angle of inclination is equal to a value obtained by dividing the cavity length variation of the Fabry-Perot cavity by the pendulum length.
    Type: Grant
    Filed: July 11, 2019
    Date of Patent: May 24, 2022
    Assignee: Qilu University of Technology(Shandong Academy of Sciences)
    Inventors: Shaodong Jiang, Chang Wang, Qingchao Zhao, Yingying Wang, Faxiang Zhang, Jiasheng Ni, Xiaohui Liu, Xiaolei Zhang, Hui Li, Long Ma
  • Patent number: 11319251
    Abstract: The invention relates to nickel-coated hexagonal boron nitride nanosheet composite powder, its preparation and high-performance composite ceramic cutting tool material. The composite powder has a core-shell structure with BNNS as the core and Ni as the shell. The self-lubricating ceramic cutting tool material is prepared by wet ball milling mixing and vacuum hot-pressing sintering with a phase alumina as the matrix, tungsten-titanium carbide as the reinforcing phase, nickel-coated hexagonal boron nitride nanosheet composite powder as the solid lubricant and magnesium oxide and yttrium oxide as the sintering aids. The invention also provides preparation methods of the nickel-coated hexagonal boron nitride nanosheet composite powder and the self-lubricating ceramic cutting tool material.
    Type: Grant
    Filed: November 8, 2019
    Date of Patent: May 3, 2022
    Assignee: QILU UNIVERSITY OF TECHNOLOGY
    Inventors: Chonghai Xu, Guangyong Wu, Guangchun Xiao, Mingdong Yi, Zhaoqiang Chen, Jingjie Zhang
  • Patent number: 11312983
    Abstract: Green preparation methods of rice resistant starch are disclosed. In some embodiments, a green preparation method of the rice resistant starch is characterized in that, at a temperature lower than the gelatinization temperature, the rice starch is sequentially modified by enzymes using ?-amylase, glucosidase, and pullulanase to obtain the modified starch. In other embodiments, a green preparation method of the rice resistant starch is characterized by using: rice starch as a substrate; and in turn using: (a) ?-amylase (BA, EC 3.2.1.2) from barley (Hordeum vulgare); (b) glucoside transferase (TG, EC 2.4.1.24) from Aspergillus niger; and (c) pullulanase (PUL, EC 3.2.1.41) from Pullulanibacillus konaensis below a gelatinization temperature to modify a chain structure of the rice starch, resulting in a number of short linear chains which are effectively arranged, aggregated, and recrystallized at 4° C. to form modified rice starch with high resistant starch content.
    Type: Grant
    Filed: April 16, 2020
    Date of Patent: April 26, 2022
    Assignee: Qilu University of Technology
    Inventors: Li Guo, Hui Li, Bo Cui
  • Publication number: 20220077456
    Abstract: The present disclosure provides core-shell nickel ferrite, a nickel ferrite@C material and preparation methods and application thereof. The preparation method of the core-shell nickel ferrite includes: preparing nickel iron glycerate ball powder by a solvothermal method; and under an air condition, heating the nickel iron glycerate ball powder at a heating rate of lower than 1.5° C./min to not less than 350° C. for performing calcination to obtain the core-shell nickel ferrite. The preparation method of the nickel ferrite@C material includes: performing a phenolic resin condensation reaction on the core-shell nickel ferrite, resorcinol and formaldehyde to obtain a phenolic resin (RF) coated core-shell nickel ferrite@RF composite material; and in an inert atmosphere, calcining and carbonizing the nickel ferrite@RF composite material to obtain the nickel ferrite@C material.
    Type: Application
    Filed: May 22, 2020
    Publication date: March 10, 2022
    Applicant: QILU UNIVERSITY OF TECHNOLOGY
    Inventors: Guowei ZHOU, Tianli LIU, Shaonan GU, Qinghua GONG, Bin SUN, Qian WANG, Xuefeng SUN
  • Patent number: 11244020
    Abstract: A method and a device for Chinese concept embedding generation based on Wikipedia link structure includes: Step (1): According to the title concepts and/or link concepts in Chinese Wikipedia pages, a link information database is constructed; Step (2): For the title concepts, according to their link relationships with link concepts in the link information database, the positive and negative training instances are constructed respectively, which constitute the training dataset; Step (3): A concept embedding model is built, including an input layer, an embedding layer, a computational operation layer, and an output layer; Step (4): The concept embedding model is trained with the training dataset, then, the Chinese concept embedding is extracted/generated from the concept embedding model. The method can accurately distinguish different concepts and overcome the problem of polysemy that troubles the traditional embedding methods, which is beneficial to generate more accurate concept embedding representation.
    Type: Grant
    Filed: October 26, 2018
    Date of Patent: February 8, 2022
    Assignee: QILU UNIVERSITY OF TECHNOLOGY
    Inventor: Wenpeng Lu
  • Publication number: 20210222218
    Abstract: Disclosed herein are methods for preparing modified starches, and uses thereof. A method for preparing a modified starch includes the steps of: modifying a gelatinized starch suspension with ?-amylase; after inactivating the ?-amylase, further modifying with a branching enzyme, after inactivating the branching enzyme, further modifying with pullulanase, after inactivating the pullulanase, precipitating a resulting enzymatic hydrolysate with an alcohol to obtain precipitates; and drying the precipitates to obtain the modified starch. The methods disclosed herein substantially increase the number of linear chains with a degree of polymerization (DP) 6-11 in the starch chains and, thus, significantly increase the content of resistant starch (RS) in the modified starch—thereby facilitating the use in foods and medicaments.
    Type: Application
    Filed: July 21, 2020
    Publication date: July 22, 2021
    Applicant: Qilu University of Technology
    Inventors: Li GUO, Hui LI, Jiahao LI, Yifan GUI, Bo CUI
  • Publication number: 20210073307
    Abstract: A method and a device for Chinese concept embedding generation based on Wikipedia link structure includes: Step (1): According to the title concepts and/or link concepts in Chinese Wikipedia pages, a link information database is constructed; Step (2): For the title concepts, according to their link relationships with link concepts in the link information database, the positive and negative training instances are constructed respectively, which constitute the training dataset; Step (3): A concept embedding model is built, including an input layer, an embedding layer, a computational operation layer, and an output layer; Step (4): The concept embedding model is trained with the training dataset, then, the Chinese concept embedding is extracted/generated from the concept embedding model. The method can accurately distinguish different concepts and overcome the problem of polysemy that troubles the traditional embedding methods, which is beneficial to generate more accurate concept embedding representation.
    Type: Application
    Filed: October 26, 2018
    Publication date: March 11, 2021
    Applicant: QILU UNIVERSITY OF TECHNOLOGY
    Inventor: Wenpeng LU
  • Publication number: 20210062420
    Abstract: The present application relates to a method for preparing dissolving pulp by TCF bleaching of poplar KP, including: preparing poplar KP by pre-hydrolysis kraft process with poplar as a raw material, and OZQP bleaching of the poplar KP to obtain dissolving pulp, wherein O denotes oxygen delignification, Z denotes ozone bleaching, Q denotes chelating treatment, and P denotes hydrogen peroxide bleaching. The dissolving pulp prepared by the same exhibits that all indexes can meet the requirements of excellent products in dissolving pulp industry standard (QB/T4898-2015), and most of the indexes are far superior to those of excellent products, and thus it can completely replace imported dissolving pulp.
    Type: Application
    Filed: August 26, 2020
    Publication date: March 4, 2021
    Applicant: Qilu University of Technology
    Inventors: Xingxiang JI, Zhongjian TIAN, Guihua YANG, Gaojin LV, Wei WEI, Jiachuan CHEN
  • Publication number: 20210054566
    Abstract: A method for preparing unbleached biomechanical pulp from straw. A straw is used as a raw material, which is treated with alkaline biological enzymes, heated with hot alkali steam, refined, and washed. The mechanical pulp prepared by the method of the present invention has significantly improved ring-crush strength, can be used to prepare corrugated paper or cardboard paper, and can significantly improve the compressive strength of the carton.
    Type: Application
    Filed: April 29, 2019
    Publication date: February 25, 2021
    Applicant: QILU UNIVERSITY OF TECHNOLOGY
    Inventors: Jiachuan CHEN, Xingxiang JI, Guihua YANG, Zhongjian TIAN, Ruiming WANG, Yuqian GUO
  • Publication number: 20200370156
    Abstract: A heat-resistant and soluble magnesium alloy, and a preparation method having an elemental composition at the following atomic percentage: Lu 0.10% to 8.00%, Ce 0.001 to 0.05%, Al 0.10% to 0.60%, Ca 0.001% to 0.50%, Cu 0.01% to 1.00%, Ni 0.01% to 1.00%, impurity elements <0.30%, and the rest is Mg, and formed in magnesium alloys are high temperature phase of Lu5Mg24, Mg2Cu, Mg2Ni, Mg12Ce, Al11Ce3 and (Mg, Al)2Ca, and Long Period Stacking Ordered (LPSO) phases as Mg—Lu—Al and Mg—Ce—Al. The magnesium alloy has good mechanical performances at 150° C., and a dissolution rate of 30 to 100 mg·cm?2h?1 in a 3% KCl solution at 93° C.
    Type: Application
    Filed: May 13, 2020
    Publication date: November 26, 2020
    Applicants: QILU UNIVERSITY OF TECHNOLOGY, ADVANCED MATERIALS INSTITUTE, SHANDONG ACADEMY OF SCIENCES
    Inventors: Jixue ZHOU, Yunteng LIU, Dongqing ZHAO, Baichang MA, Meifang WANG, Peiliang LI, Cong LIU, Shouqiu TANG