公开(公告)号：US20230167473A1

公开(公告)日：2023-06-01

申请号：US17780423

申请日：2021-11-17

Applicant: DALIAN UNIVERSITY OF TECHNOLOGY

Inventor： Chuang XUE ,  Mingming QI ,  Wenqiang ZHANG

IPC: C12P17/06 ,  C12N15/52 ,  C12N9/02 ,  C12N9/04 ,  C12N9/10 ,  C12N9/88 ,  C12N9/00

CPC classification number: C12P17/06 ,  C12N15/52 ,  C12N9/0004 ,  C12Y121/99 ,  C12N9/0006 ,  C12Y101/01157 ,  C12N9/001 ,  C12Y103/01044 ,  C12N9/1029 ,  C12Y203/01009 ,  C12N9/88 ,  C12Y402/01017 ,  C12Y404/01026 ,  C12N9/93 ,  C12Y604/01002

Abstract: A recombinant host cell capable of biosynthesizing cannabichromenic acid and a construction method thereof, and a method for biosynthesizing cannabichromenic acid through the recombinant host cell. Saccharomyces cerevisiae is taken as a host. First, cannabigerolic acid synthase and cannabichromenic acid synthase are over-expressed in the host; then, a metabolic pathway of a precursor compound, olivetolic acid, synthesizing cannabichromenic acid from saccharides is constructed in the host, a metabolic pathway for hexanoic acid to olivetolic acid is further constructed in the host, an endogenous mevalonate pathway of the host and a metabolic pathway of acetyl-CoA are optimized, cannabichromenic acid synthase is rationally designed, highly active cannabichromenic acid synthase is screened out, and finally, a cannabichromene pathway is located to peroxisomes and lipid droplets by using the cell compartmentalization principle to obtain recombinant Saccharomyces cerevisiae capable of biosynthesizing cannabichromenic acid.

公开(公告)号：US11654568B2

公开(公告)日：2023-05-23

申请号：US16647654

申请日：2019-05-15

Applicant: Dalian University of Technology

Inventor： Wei Liu ,  Bing Liang ,  Mengde Zhou ,  Kun Liu ,  Yang Zhang ,  Di Feng ,  Xintong Jiang ,  Likun Si ,  Zhenyuan Jia

IPC: B25J9/16 ,  B25J19/02 ,  G01B21/04

CPC classification number: B25J9/1692 ,  B25J9/1694 ,  B25J19/027 ,  G01B21/042 ,  G01B21/045

Abstract: A 3D measurement model and the spatial calibration method based on a 1D displacement sensor are proposed. A 3D measurement system based on a fixed 1D displacement sensor is established; then a spatial measurement model based on the 1D displacement sensor is established; and then based on the high precision pose data of the measurement plane and sensor measurement data, spatial calibration constraint equation are established; a weighted iterative algorithms is employed to calculate the extrinsic parameters of the 1D sensor that meet the precision requirements, then the calibration process is completed. A high precision 3D measurement model is established; a 3D measurement model based on a 1D displacement sensor is established, and the calibration method of the measurement model is proposed, which will improve the precision of the 3D measurement model and solve the problem of inaccurate spatial measurement caused by the errors of the sensor extrinsic parameters.

公开(公告)号：US20230146223A1

公开(公告)日：2023-05-11

申请号：US17914974

申请日：2021-06-18

Applicant: DALIAN UNIVERSITY OF TECHNOLOGY

Inventor： Xiaobin JIANG ,  Peipei LI ,  Menghang LI ,  Zhijie YUAN ,  Gaohong HE ,  Wu XIAO ,  Xiangcun LI ,  Xuemei WU

IPC: C12N15/10 ,  B33Y80/00

CPC classification number: C12N15/1006 ,  B33Y80/00 ,  B29C64/124

Abstract: The present invention discloses a nucleic acids extraction system and method based on a 3D-printed microdevice, and belongs to the technical field of nucleic acids extraction. The nucleic acids extraction system is a monomer 3D-printed microdevice or a 3D-printed microdevice prepared by 3D printing technologies, the monomer 3D-printed microdevice comprises a nucleic acids binding region and a handle region, and the 3D-printed microdevice is composed of more than two monomer 3D-printed microdevices through a joining region; and the nucleic acids binding region is made of photosensitive resin or thermoplastic. An extraction method for the nucleic acids extraction system based on a 3D-printed microdevice is used to bind, clean and elute nucleic acids by moving the monomer 3D-printed microdevice or the 3D-printed microdevice among a solution containing target nucleic acids, a washing buffer and an elution buffer.

公开(公告)号：US11629157B2

公开(公告)日：2023-04-18

申请号：US17256144

申请日：2020-01-22

Applicant: DALIAN UNIVERSITY OF TECHNOLOGY

Inventor： Xiaolian Li ,  Rouchen Pan

IPC: C07F5/02 ,  C09K11/06 ,  C09K19/04 ,  C09K19/60

Abstract: A series of 8-(bisphenylethynyl)-ester flexible multiple ring-containing fluoroboron pyrrole liquid crystal dyes are synthesized by introducing a diphenylethynyl rigid structure at position 8 of a boron-dipyrromethene core via a Sonogashira coupling reaction, and a flexible multiple ring such as bicyclohexane, or cholesterol is connected to the biphenylethynyl via an esterification reaction. The dye compounds all have maximum emission wavelengths in methylene chloride concentrated around 525 nm, present green fluorescence, and show good dichroic colour ratios and ordered parameters in E7 liquid crystal. The liquid crystal compounds are in a liquid crystal intermediate phase within the range of 100-280° C., and may be used for manufacturing liquid crystal display products, especially as guest dyes for guest-host mode liquid crystal displays. The response time can be improved and a rapid response effect achieved when the compounds are added to E7 liquid crystal and used for a guest-host display mode.

公开(公告)号：US11618117B2

公开(公告)日：2023-04-04

申请号：US17424418

申请日：2020-02-17

Applicant: DALIAN UNIVERSITY OF TECHNOLOGY

Inventor： Jiang Guo ,  Yongbo Xu ,  Yan Bao

IPC: B23Q3/08 ,  B25J15/00

Abstract: A freezing support device and method for a large thin-walled part, which belongs to the technical field of machining support. The present invention realizes freezing support for a large thin-walled part by a freezing system and an auxiliary system, wherein the freezing system comprises a heating source, a freezing source, flexible films, support plates, etc., and the auxiliary system comprises a rotating device, a moving plate and guide rails. The present invention utilizes ice with a certain thickness formed on a support side of a machining area and supports a workpiece through the ice, and the ice is always used as a support along with the progress of machining to have an effect of follow-up support. The present invention simplifies a support structure, and has the advantages of low cost, no contamination to a machine tool, and convenient use; plays a function of clamping the workpiece.

公开(公告)号：US11612960B2

公开(公告)日：2023-03-28

申请号：US17864176

申请日：2022-07-13

Applicant: DALIAN UNIVERSITY OF TECHNOLOGY

Inventor： Zhubin He ,  Jiangkai Liang ,  Wei Du ,  Xinyu Hu ,  Yi Xu

IPC: B23K26/342 ,  B23K26/082 ,  B23K26/70 ,  B21B47/00 ,  B21B37/24 ,  B33Y50/02 ,  B33Y10/00 ,  B33Y40/20

Abstract: Laser additive manufacturing and a method for preparing thin-walled preforms by laser metal deposition and follow-up rolling. This can solve the problems that when the existing laser metal deposition technology prepares the thin-walled preforms, the limit width size of a molten pool at high power affects the forming wall thickness of the preforms so that it is difficult to prepare preforms with wall thickness less than 2 mm, and the problems of poor surface quality and low accuracy of preforms due to convex and concave peaks caused by the interlayer overlapping, but also can solve the problems that a laser beam with a preset trajectory cannot act on the end surfaces of the preforms due to preform deformation caused by residual stress in a printing process so that the preforms cannot be continuously formed.

公开(公告)号：US20230092694A1

公开(公告)日：2023-03-23

申请号：US17758285

申请日：2020-01-21

Applicant: DALIAN UNIVERSITY OF TECHNOLOGY

Inventor： Hui NIU ,  Shiqi XIE ,  Shuhui LIU ,  Zongke HE ,  Zhuo BAO ,  Liying LIU ,  Zhe HUA ,  Aihui WANG ,  Wenjing YIN ,  Jing WANG ,  Xu LI ,  Shuang SUN

IPC: C08K5/3417 ,  C08K5/151 ,  C08K5/54 ,  C08K5/14 ,  C08F110/06 ,  B29C48/00 ,  B29C48/40

Abstract: A vulcanizing agent is added during the processing of a polymer, and can form a crosslinking structure network in the polymer, thereby improving the mechanical properties of the material. Furthermore, the crosslinking agent can also de-crosslink the polymer material at a high temperature, and after being cooled, same can be crosslinked again to produce a network structure, thus endowing the polymer material with thermoplasticity for repeated processing.

公开(公告)号：US20230058314A1

公开(公告)日：2023-02-23

申请号：US17617867

申请日：2021-06-30

Applicant: DALIAN UNIVERSITY OF TECHNOLOGY

Inventor： Hongnan LI ,  Linsheng HUO ,  Gang LI ,  Jing ZHOU ,  Zhuodong YANG

IPC: G01N3/10 ,  G01N3/04

Abstract: A structure multi-dimensional loading test system considering real complex boundary conditions considering real complex boundary conditions comprises a main part of machine, a base part, a hydraulic power supply and a control system. The system can simulate the load borne by a structure in a real working environment better and more accurately, realize multi-dimensional loading of the structure with six degrees of freedom in space and provide more real and valuable experimental data for the research on damage of reinforced concrete materials, components and structures under the action of an earthquake, and the research results will help researchers further reveal the damage mechanism of reinforced concrete structures, put forward the corresponding damage criteria and develop the corresponding seismic design methods.

公开(公告)号：US20230048056A1

公开(公告)日：2023-02-16

申请号：US17883126

申请日：2022-08-08

Applicant: DALIAN UNIVERSITY OF TECHNOLOGY

Inventor： Jianjian SHEN ,  Yue WANG ,  Chuntian CHENG ,  Lin HU ,  Xiufeng LI

IPC: G06F30/20 ,  H02J3/38 ,  H02J3/46

Abstract: A method for describing power output of a cluster of wind and solar power stations considering time-varying characteristics. The error function is employed to characterize the degree of difference in power output within periods, and split-level clustering is used to determine the optimal period division under different period division quantities. The economic efficiency theory is introduced to determine the ideal number of periods, avoiding the randomness and unreasonableness that may result from relying on the subjective determination of the number of clusters. This method can reasonably divide the wind and solar power output period, fully reflecting the time-varying law of wind and solar power generation. The results also can accurately reflect the distribution characteristics of the power output of the power station group at each time period, and the power output each time period shows better reliability, concentration, and practicality.

公开(公告)号：US11565957B2

公开(公告)日：2023-01-31

申请号：US16611151

申请日：2018-02-05

Applicant: DALIAN UNIVERSITY OF TECHNOLOGY

Inventor： Xie Quan ,  Yanping Shi ,  Shuo Chen ,  Yaobin Zhang ,  Tao Liu

IPC: C02F3/28 ,  B29C48/00 ,  B29K23/00 ,  B29K509/00

Abstract: A method for preparing an electron donor biofilm carrier includes proportioning organic polymer basic raw material and functional modifiers in a range of set-point, mixing the materials, feeding the mixtures into a screw extruder, processing them into a bar-type material, and then cut the bar-type material into granules with the cutting machine, and feeding the granules into the screw extruder, processing them into pipes of various shapes according to the selected screw extruder heads, and then cutting the pipes according to the required size. The electron donor biofilm carrier is mainly used in anaerobic or anoxic suspended carrier biofilm technologies. Electron donors with a standard electrode potential below 100 Mv are used as the functional material for preparation of electron donor biofilm carrier.